Compressor flue gas waste heat recovery device

Abstract

This utility model discloses a compressor flue gas waste heat recovery device, comprising: a flue gas collection unit for collecting high-temperature flue gas generated during compressor operation; a heat exchange medium storage unit for storing, replenishing, and regulating the heat exchange medium; a heat conduction unit for recovering heat from the flue gas and transferring it to the heat exchange medium, thereby achieving heat exchange between the flue gas and the heat exchange medium; and a waste heat utilization unit for utilizing and recovering the waste heat from the compressor flue gas, using the recovered heat for domestic hot water, building heating, or industrial heating. This device meets the daily operational needs of winter production, improves thermal energy utilization and production continuity, and reduces industrial operating costs.

Description

Technical Field

[0001] This utility model belongs to the field of compressor waste heat recovery technology, and relates to a compressor flue gas waste heat recovery device. Background Technology

[0002] With the rapid development of the natural gas industry, the issue of energy efficiency in natural gas gathering and transportation has become increasingly prominent. Currently, natural gas gathering and transportation mainly relies on compressor boosting technology, and the recovery and utilization of waste heat from compressors has always been a focus of industry attention. With rising energy costs and increasingly stringent environmental requirements, improving energy efficiency and reducing heat waste have become important goals for enterprises pursuing sustainable development. However, existing waste heat recovery technologies suffer from significant heat waste in practical applications, limiting the efficient utilization of waste heat resources. Of the high-temperature heat energy generated by existing compressor combustion, only about 35% is converted into effective work. The remaining heat energy is distributed as follows: approximately 30% is discharged with flue gas, 25% is carried away by the engine cooling medium, and about 10% is lost through other means such as engine body dissipation. A large amount of waste heat resources are not effectively recovered and utilized, leading to serious waste of thermal energy.

[0003] Patent CN203271842U discloses an ORC power generation system for recovering waste heat from gas turbine exhaust in a gas compressor station. This device achieves waste heat recovery through forced circulation. While this improves waste heat utilization efficiency to some extent, forced circulation necessitates the additional configuration of a thermal oil circulation pump to maintain the circulation system's operation, undoubtedly increasing the system's energy consumption and cost. The operation of the thermal oil circulation pump not only consumes additional electrical energy but also requires regular maintenance and upkeep, increasing the workload and operating costs of the equipment. This may, in the long term, offset some of the economic benefits of waste heat recovery.

[0004] Current technologies primarily employ relatively simple and direct waste heat recovery methods. For example, placing oil drums near high-temperature exhaust pipes attempts to transfer heat to the oil drums through high-temperature radiation and hot air flow. However, this method is ineffective, resulting in low heat utilization. Furthermore, this simple waste heat recovery method has numerous problems and does not meet safety management requirements. For instance, improper placement of oil drums on-site can easily lead to safety hazards. There are also risks of personal injury and environmental pollution during handling. Therefore, how to effectively recover and utilize the high-temperature waste heat from compressors while ensuring safe production and environmental protection has become an urgent technical problem to be solved. Current technologies lack waste heat utilization systems that can rely entirely on natural gravity circulation, have a compact structure, and can adapt to the vibration environment of compressors. This leads to numerous problems in practical applications of high-temperature exhaust waste heat recovery from compressors, including system complexity, high cost, numerous safety hazards, and low heat utilization. Therefore, there is an urgent need for a new high-temperature exhaust waste heat utilization device for compressors that can overcome the shortcomings of existing technologies and achieve efficient, safe, and stable waste heat recovery and utilization. Utility Model Content

[0005] The purpose of this invention is to provide a compressor flue gas waste heat recovery device, which solves the problem of poor utilization rate of recovered heat energy in existing compressor flue gas waste heat recovery devices.

[0006] The technical solution adopted in this utility model is a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0007] The features of this utility model also include: The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0008] The heat exchange medium storage unit is a replenishment tank, and the heat exchange medium is one of water, heat transfer oil or antifreeze.

[0009] The heat conduction unit includes several adjustable support seats, and a heating coil is provided on the top of the several adjustable support seats. A first ball valve is provided at one end of the heating coil, a replenishment tank is fixed to the end of the heating coil near the first ball valve, and a second ball valve is provided at the end of the heating coil near the first ball valve.

[0010] The heating coil includes several U-shaped tubes, which are integrally formed. Adjacent U-shaped tubes are fixed with bends at their openings. Ties are welded to one side of several U-shaped tubes, and the ties are evenly distributed along the direction perpendicular to the U-shaped tubes.

[0011] The replenishment tank includes a connector, with a cylindrical steel pipe movably connected to the bottom of the connector. The steel pipe is welded to the end of the heating coil, and the outlet pipe of the replenishment tank is movably connected to the top of the connector.

[0012] The top of the outlet pipe of the replenishment tank is fixed to the tank body. A viewing window is opened on the side wall of the replenishment tank body, and the viewing window is marked with scale. An end cap is provided on the top of the replenishment tank body, and a sealing ring is embedded inside the end cap.

[0013] The adjustable support includes a base, a telescopic cylinder welded to the center of the top of the base, a lead screw threaded to the end of the telescopic cylinder away from the base, and a support plate connected to the lead screw by a retaining spring.

[0014] The support plate has an insertion hole with a retaining spring groove inside. The lead screw is cylindrical and has a retaining spring installed on its top.

[0015] The waste heat utilization unit includes a heating room, which contains several radiators connected in sequence. Each radiator has an automatic air vent valve installed at one end, and an inlet pipe and an outlet pipe connected to the end of the radiator away from the automatic air vent valve. The other end of the inlet pipe is connected to a steel pipe, and the other end of the outlet pipe is fixedly connected to a second ball valve. Several supports are provided at the bottom of the heating room, and a ramp is provided at the entrance of the heating room for moving objects.

[0016] The heated room is a prefabricated steel structure, and is made of insulation material, which is one or more of polystyrene foam board, extruded polystyrene board, or polyurethane foam board.

[0017] The compressor flue gas waste heat recovery device is suitable for recovering waste heat from the flue gas of air compressors, gas compressors or other industrial compressors.

[0018] The beneficial effects of this utility model are: Zero-energy self-circulation: This utility model compressor flue gas waste heat recovery device abandons traditional power equipment and relies solely on the flue gas collection unit, heat exchange medium storage unit, heat conduction unit and waste heat utilization unit to form a natural heat cycle, realizing zero-energy efficient recovery of high-temperature flue gas waste heat from the compressor and reducing operating costs.

[0019] Precise temperature control and stability: By adjusting the height of the support base, the height of the heating coil can be adjusted, which in turn adjusts the contact distance between the heating coil and the compressor exhaust pipe. This allows for flexible control of the heating room temperature within a constant range of 25℃-35℃, effectively controlling environmental pollution caused by the heat exchange medium boiling over at high temperatures. It also ensures stable circulating temperature of the compressor flue gas waste heat recovery device, adapting to winter production needs and improving operational convenience.

[0020] Improved production efficiency: The heating room can quickly preheat the oil drum and refueling machine, specifically reaching the refueling standard within 4 hours, shortening the waiting time, optimizing the operation process, and indirectly improving the utilization rate of heat energy and the continuity of production.

[0021] In summary, the compressor flue gas waste heat recovery device of this utility model meets the daily working needs of winter production, improves the utilization rate of heat energy and production continuity, and reduces industrial operating costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the compressor flue gas waste heat recovery device of this utility model; Figure 2 This is a schematic diagram of the heating coil structure of the compressor flue gas waste heat recovery device of this utility model; Figure 3 This is a schematic diagram of the adjustable support structure of the compressor flue gas waste heat recovery device of this utility model; Figure 4 This is a schematic diagram of the replenishment tank structure of the compressor flue gas waste heat recovery device of this utility model; Figure 5 This is a schematic diagram of the heating room structure of the compressor flue gas waste heat recovery device of this utility model.

[0023] In the diagram: 1. Heating coil; 2. Replenishment tank; 3. First ball valve; 4. Adjustment support; 5. Heated room; 6. Radiator; 7. Second ball valve; 8. Tie rod; 9. U-shaped pipe; 10. Bend; 11. Support plate; 12. Screw rod; 13. Telescopic cylinder; 14. Base; 15. End cap; 16. Replenishment tank body; 17. Viewing window; 18. Scale; 19. Connector; 20. Prefabricated steel house; 21. Radiator; 22. Automatic air vent valve; 23. Thermometer; 24. Steel pipe; 25. Replenishment tank outlet pipe; 26. Support; 27. Inlet pipe; 28. Outlet pipe. Detailed Implementation

[0024] The subject matter of this invention will now be described more fully with reference to exemplary embodiments. However, the disclosed concepts may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. (By referring to the accompanying drawings...) Figure 1 The features of the embodiments disclosed herein and how to implement the features of the embodiments disclosed herein will become apparent from the embodiments described in more detail herein.

[0025] Unless the context explicitly specifies otherwise, references to elements (e.g., “the”) may include plural forms. For purposes of meaning and interpretation, the term “and / or” is intended to include any combination of the terms “and” and “or”. For example, “A and / or B” can be understood to mean “A, B, or A and B”. The terms “and” and “or” can be used in a connected or separate sense and can be understood as equivalent to “and / or”. For purposes of meaning and interpretation, the phrase “at least one of…” is intended to include the meaning of “at least one of the groups…”. For example, “at least one of A and B” can be understood to mean “A, B, or A and B”.

[0026] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the publicly stated teachings, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element.

[0027] For ease of description, spatially relative terms such as “below,” “under,” “down,” “above,” and “above” may be used herein to describe the relationship of one element or feature to another element(s) as shown in the accompanying drawings. It will be understood that, in addition to the orientations depicted in the drawings, the spatially relative terms are intended to encompass different orientations of the device in use or operation. For example, if the device in the drawings is flipped, then an element described as “below” or “under” other elements or features will be oriented “above” or “above” other elements or features. Thus, the term “below” can include both above and below orientations. The device may be oriented in other ways, and the spatially relative descriptive terms used herein should be interpreted accordingly.

[0028] The terminology used herein is for the purpose of describing embodiments of the present invention and is not intended to limit the disclosure. As used herein, the singular form “a” is intended to include the plural form as well, unless the context explicitly indicates otherwise. It will be further understood that, when used in this specification, the terms “comprising,” “including,” “containing,” and / or “having” indicate the presence of a stated feature, integral, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Each of the features of the various disclosed embodiments can be combined in whole or in part, and various technically interconnected and driving relationships are possible. Each embodiment can be implemented independently of each other or can be implemented together in association.

[0029] For ease of explanation, the dimensions of the components in the accompanying drawings may be exaggerated. In other words, since the dimensions and thicknesses of the components in the accompanying drawings can be arbitrarily shown for ease of explanation, the following embodiments disclosed in this utility model are not limited thereto.

[0030] Unless otherwise specified, all terms used in this invention (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms defined in commonly used dictionaries shall be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and unless expressly defined herein, these terms shall not be interpreted in an idealized or overly formal sense.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0032] This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0033] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0034] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0035] This utility model of a compressor flue gas waste heat recovery device does not require any power equipment. It uses a natural gravity-driven circulating heat exchange medium heating system. The device consists of a flue gas collection unit, a heat exchange medium storage unit, a heat conduction unit, and a waste heat utilization unit, connected by pipelines. The working principle of the compressor flue gas waste heat recovery device is as follows: During the circulation of the heat exchange medium, due to the temperature difference between the supply and return water, a density difference is generated. The device uses this density difference as the driving force for self-circulation.

[0036] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0037] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0038] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0039] like Figure 4As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0040] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0041] Heating room 5 is a prefabricated steel structure 20. Heating room 5 is made of insulation material, which is one or more of polystyrene foam board, extruded polystyrene board or polyurethane foam board.

[0042] The compressor flue gas waste heat recovery device is suitable for recovering waste heat from the flue gas of air compressors, gas compressors or other industrial compressors.

[0043] Example 1 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0044] This utility model compressor flue gas waste heat recovery device does not require any power equipment. It uses a natural gravity circulation heat exchange medium heating system. The compressor flue gas waste heat recovery device consists of a flue gas collection unit, a heat exchange medium storage unit, a heat conduction unit, and a waste heat utilization unit. The waste heat utilization unit and the heat conduction unit are connected by pipelines.

[0045] The working principle of this compressor flue gas waste heat recovery device is as follows: During the circulation of the heat exchange medium, due to the temperature difference between the supply water and the return water, a density difference is generated between the supply water and the return water. The compressor flue gas waste heat recovery device uses the density difference between the supply water and the return water as the circulation power to carry out self-circulation.

[0046] Example 2 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0047] Based on Example 1, the flue gas collection unit in this embodiment includes several compressor exhaust pipes, which are disposed at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device, which is used to remove impurities and particulate matter from the flue gas.

[0048] Example 3 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0049] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0050] Based on Example 2, in this example, the heat exchange medium storage unit is a replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and exhibiting extremely low evaporation (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0051] Example 4 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0052] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0053] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0054] Based on Example 3, this embodiment, for example Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0055] Example 5 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0056] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0057] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0058] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0059] Based on Example 4, this embodiment, for example Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0060] Example 6 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0061] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0062] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0063] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0064] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0065] Based on Example 5, this embodiment, for example Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0066] Example 7 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0067] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0068] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0069] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0070] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0071] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0072] Based on Example 6, this embodiment, for example Figure 4As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0073] Example 8 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0074] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0075] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0076] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0077] like Figure 2As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0078] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0079] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0080] Based on Example 7, this embodiment, for example Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0081] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0082] Example 9 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0083] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0084] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0085] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0086] like Figure 2As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0087] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0088] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0089] Based on Example 7, this embodiment, for example Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0090] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the pipes of inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between radiator 6 and heating coil 1 needs to be more than 0.5m. The diameter of inlet pipe 27 and outlet pipe 28 is DN40. The distance between the farthest ends of inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the temperature change. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0091] Example 10 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0092] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0093] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0094] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0095] like Figure 2As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0096] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0097] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0098] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0099] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0100] Based on Example 8, the heating room 5 in this example is a color steel house 20, and the heating room 5 is made of insulation material, which is polystyrene foam board.

[0101] Example 11 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0102] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0103] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0104] like Figure 1As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0105] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0106] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0107] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0108] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0109] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the pipes of inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between radiator 6 and heating coil 1 needs to be more than 0.5m. The diameter of inlet pipe 27 and outlet pipe 28 is DN40. The distance between the farthest ends of inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the temperature change. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0110] Based on Example 9, the heating room 5 in this example is a color steel house 20, and the heating room 5 is made of insulation material, which is extruded polystyrene board.

[0111] Example 12 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0112] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0113] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0114] like Figure 1As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0115] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0116] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0117] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0118] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0119] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0120] Based on Example 8, the heating room 5 in this example is a color steel house 20, and the heating room 5 is made of insulation material, which is polyurethane foam board.

[0121] Example 13 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0122] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0123] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0124] like Figure 1As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0125] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0126] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0127] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0128] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0129] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0130] Based on Example 8, the heating room 5 in this example is a color steel house 20. The heating room 5 is made of insulation material, which is polystyrene foam board and extruded polystyrene board.

[0131] Example 14 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0132] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0133] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0134] like Figure 1As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0135] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0136] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0137] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0138] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0139] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0140] Based on Example 8, the heating room 5 in this example is a color steel house 20. The heating room 5 is made of insulation material, which is extruded polystyrene board and polyurethane foam board.

[0141] Example 15 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0142] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0143] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0144] like Figure 1As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0145] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0146] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0147] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0148] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0149] Heating room 5 is a prefabricated steel structure 20. Heating room 5 is made of insulation material, which is extruded polystyrene board and polyurethane foam board.

[0150] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0151] Based on Example 14, the compressor flue gas waste heat recovery device in this example is applicable to the recovery of flue gas waste heat from air compressors, gas compressors or other industrial compressors.

[0152] Example 16 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0153] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0154] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0155] like Figure 1As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0156] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0157] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0158] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0159] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0160] Heating room 5 is a prefabricated steel structure 20. Heating room 5 is made of insulation material, which is extruded polystyrene board and polyurethane foam board.

[0161] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0162] The compressor flue gas waste heat recovery device is suitable for recovering waste heat from the flue gas of air compressors, gas compressors or other industrial compressors.

[0163] Based on Example 15, the U-shaped tube 9 in this example uses a seamless steel pipe of model DN40×1.5m with sand filling and bending, and the tank body 16 of the replenishment tank uses a steel pipe of model DN219×25cm.

[0164] Example 17 This utility model relates to a compressor flue gas waste heat recovery device, comprising: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. The waste heat recovery unit is used to recover waste heat from the compressor flue gas and use the recovered heat for domestic hot water, building heating or industrial heating.

[0165] The flue gas collection unit includes several compressor exhaust pipes located at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

[0166] The heat exchange medium storage unit is the replenishment tank 2, and the heat exchange medium is either heat transfer oil or antifreeze. When the heat exchange medium is heat transfer oil or antifreeze, the heat transfer oil or antifreeze serves as the circulating medium, possessing both antifreeze and anti-corrosion properties, and has an extremely low evaporation rate (<15 liters / month), significantly reducing maintenance frequency and medium loss, and extending the service life of the compressor flue gas waste heat recovery device.

[0167] like Figure 1 As shown, the heat transfer unit includes several adjustable support seats 4, and a heating coil 1 is provided on the top of the several adjustable support seats 4. A first ball valve 3 is provided at one end of the heating coil 1. The first ball valve 3 is a drain valve. A replenishment tank 2 is fixedly connected to the end of the heating coil 1 near the first ball valve 3. A second ball valve 7 is provided at the end of the heating coil 1 near the first ball valve 3. The second ball valve 7 is a return valve used to return the heat exchange medium to the heating coil 1.

[0168] like Figure 2 As shown, the heating coil 1 includes several U-shaped tubes 9, which are integrally formed. Adjacent U-shaped tubes 9 have bends 10 fixedly connected to their openings. Tie rods 8 are welded to one side of each U-shaped tube 9, and are evenly distributed perpendicular to the U-shaped tubes 9, specifically at 10cm intervals. To improve the utilization rate of waste heat from the compressor flue gas, the heating coil 1 is used to increase the temperature of the heat transfer oil or antifreeze. The circulating heat transfer oil or antifreeze transfers heat, providing a suitable temperature for the oil drum and liquid containers, meeting the daily operating needs of winter production and achieving effective utilization of thermal energy.

[0169] like Figure 3 As shown, the adjusting support base 4 includes a base 14, a telescopic cylinder 13 welded to the center of the top of the base 14, a lead rod 12 threadedly connected to the end of the telescopic cylinder 13 away from the base 14, and a support plate 11 connected to the lead rod 12 by a retaining spring. The support plate 11 has an insertion hole with a retaining spring groove inside. The lead rod 12 is cylindrical and a retaining spring is installed on the top of the lead rod 12.

[0170] like Figure 4 As shown, the replenishment tank 2 includes a connector 19, with a steel pipe 24 movably connected to the bottom of the connector 19. The steel pipe 24 is cylindrical and is welded to the end of the heating coil 1. The top of the connector 19 is movably connected to the replenishment tank outlet pipe 25. The top of the replenishment tank outlet pipe 25 is fixedly connected to the replenishment tank body 16. The side wall of the replenishment tank body 16 has a viewing window 17 with a scale 18. The top of the replenishment tank body 16 has an end cap 15 with a sealing ring embedded inside.

[0171] like Figure 5 As shown, the waste heat utilization unit includes a heating room 5, which contains several radiators 6 connected in sequence, such as... Figure 1 As shown, an automatic air vent valve 22 is installed at one end of the radiator 6. The end of the radiator 6 away from the automatic air vent valve 22 is connected to an inlet pipe 27 and an outlet pipe 28. The other end of the inlet pipe 27 is connected to a steel pipe 24. The other end of the outlet pipe 28 is fixedly connected to a second ball valve 7. Several supports 26 are provided at the bottom of the heating room 5. A ramp is provided at the entrance of the heating room 5 for moving objects.

[0172] Heating room 5 is a prefabricated steel structure 20. Heating room 5 is made of insulation material, which is extruded polystyrene board and polyurethane foam board.

[0173] In the heat exchange self-circulation system of the compressor flue gas waste heat recovery device, the inlet pipe 27 and outlet pipe 28 are designed with a certain slope. The height difference between the radiator 6 and the heating coil 1 needs to be more than 0.5m. The diameter of the inlet pipe 27 and outlet pipe 28 is DN25. The distance between the farthest ends of the inlet pipe 27 and outlet pipe 28 should generally not exceed 15m. These are the necessary technical requirements for the self-circulation system. At the same time, the normal operation of the heat exchange self-circulation system is mainly affected by the heat exchange medium in the heating coil, the height of the heating coil from the compressor exhaust pipe, and the air temperature. To keep the temperature of the heating room 5 constant, the heat exchange temperature needs to be controlled so that the heat transferred is proportional to the temperature of the heat circulation system. This satisfies both the control of the heat exchange and the stability of the heat transfer of the circulating water in the pipeline.

[0174] The compressor flue gas waste heat recovery device is suitable for recovering waste heat from the flue gas of air compressors, gas compressors or other industrial compressors.

[0175] Based on Example 15, the overall design dimensions of the heating room 5 in this example are 2×2.5×2.5m.

[0176] The features of the various embodiments disclosed in this utility model can be combined in part or in whole. As will be clearly understood by those skilled in the art, various technical interactions and operations are possible. Furthermore, various embodiments can be implemented individually or in combination.

[0177] In summarizing the detailed description, those skilled in the art will understand that many variations and modifications can be made to the described embodiments without departing from this disclosure. Therefore, the disclosed embodiments are used in a general and descriptive sense and are not intended to be limiting.

Claims

1. A compressor flue gas waste heat recovery device, characterized in that, include: The flue gas collection unit is used to collect the high-temperature flue gas generated during the operation of the compressor; A heat exchange medium storage unit is used to store, replenish, and regulate the heat exchange medium. The heat transfer unit is used to recover heat from the flue gas and transfer it to the heat exchange medium, thereby realizing heat exchange between the flue gas and the heat exchange medium. Waste heat recovery unit is used to recover waste heat from compressor flue gas and use the recovered heat for domestic building heating or industrial heating. The heat exchange medium storage unit is a replenishment tank (2), and the heat exchange medium is either heat transfer oil or antifreeze. The heat conduction unit includes several adjustable support seats (4), and a heating coil (1) is provided on the top of several adjustable support seats (4). A first ball valve (3) is provided at one end of the heating coil (1), a liquid replenishment tank (2) is fixedly connected to the end of the heating coil (1) near the first ball valve (3), and a second ball valve (7) is provided at the end of the heating coil (1) near the first ball valve (3). The replenishment tank (2) includes a connector (19), the bottom of which is movably connected to a steel pipe (24), the steel pipe (24) is cylindrical, the steel pipe (24) is welded to the end of the heating coil (1), and the top of the connector (19) is movably connected to the replenishment tank outlet pipe (25).

2. The compressor flue gas waste heat recovery device according to claim 1, characterized in that, The flue gas collection unit includes several compressor exhaust pipes, which are disposed at the bottom of the heat conduction unit. The flue gas collection unit also includes a flue gas filtration device for removing impurities and particulate matter from the flue gas.

3. The compressor flue gas waste heat recovery device according to claim 1, characterized in that, The heating coil (1) includes several U-shaped tubes (9), which are integrally formed. A bend (10) is fixedly connected to the opening of adjacent U-shaped tubes (9). A tie rod (8) is welded to one side of several U-shaped tubes (9), and the tie rod (8) is evenly distributed along the direction perpendicular to the U-shaped tube (9).

4. The compressor flue gas waste heat recovery device according to claim 1, characterized in that, The top of the outlet pipe (25) of the replenishment tank is fixed to the tank body (16). The side wall of the tank body (16) is provided with a viewing window (17). The viewing window (17) is provided with a scale (18). The top of the tank body (16) is provided with an end cap (15). The end cap (15) is embedded with a sealing ring.

5. The compressor flue gas waste heat recovery device according to claim 1, characterized in that, The adjustable support base (4) includes a base (14), a telescopic cylinder (13) is welded to the center of the top of the base (14), and a screw rod (12) is threaded to one end of the telescopic cylinder (13) away from the base (14). The screw rod (12) is connected to a support plate (11) by a retaining spring.

6. The compressor flue gas waste heat recovery device according to claim 5, characterized in that, The support plate (11) has an insertion hole, and the insertion hole has a retaining groove. The lead screw (12) is cylindrical, and a retaining ring is installed on the top of the lead screw (12).

7. The compressor flue gas waste heat recovery device according to claim 1, characterized in that, The waste heat utilization unit includes a heating room (5), which is equipped with several radiators (6). The radiators (6) are connected in sequence. An automatic air vent valve (22) is installed at one end of each radiator (6). An inlet pipe (27) and an outlet pipe (28) are connected to the end of the radiator (6) away from the automatic air vent valve (22). The other end of the inlet pipe (27) is connected to a steel pipe (24). A second ball valve (7) is fixed to the other end of the outlet pipe (28). Several supports (26) are provided at the bottom of the heating room (5). A ramp is provided at the entrance of the heating room (5) for transporting objects.

8. The compressor flue gas waste heat recovery device according to claim 7, characterized in that, The heating room (5) is a color steel house (20), and the heating room (5) is made of insulation material, which is one or more of polystyrene foam board, extruded polystyrene board or polyurethane foam board.

9. The compressor flue gas waste heat recovery device according to claim 1, characterized in that, The device is suitable for recovering waste heat from flue gas from air compressors or gas compressors.

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