Novel air compressor waste heat recovery and steam production device

Abstract

The utility model discloses a novel air compressor waste heat recovery steam making device which comprises a shell, an ultra-high temperature heat pump, a steam generator, an oil pipe and a hot water pipe are arranged in the shell, a heat pump evaporator and a condenser are arranged in the ultra-high temperature heat pump, one end of the oil pipe is connected with an air compressor, and the other end of the oil pipe is connected with the oil side of the heat pump evaporator. One end of the hot water pipe is connected with the condenser, and the other end of the hot water pipe is connected with the steam generator. High-temperature lubricating oil is fed into the oil side of the heat pump evaporator through the oil pipe for heat exchange, and low-temperature lubricating oil after heat exchange is discharged out of the device through an outlet of the heat pump evaporator; after collecting heat of lubricating oil, the ultrahigh-temperature heat pump sends the heat to the condenser to exchange heat with low-temperature water conveyed by the steam generator, and after temperature rise, high-temperature hot water is sent back to the steam generator through a hot water pipe to prepare steam. According to the device, the superhigh-temperature heat pump is used for recovering waste heat of lubricating oil of the air compressor to prepare steam, so that the effects of energy conservation and emission reduction are achieved

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery technology of air compressors, and more specifically, to a novel air compressor waste heat recovery steam generation device. Background Technology

[0002] Waste heat refers to the sensible and latent heat in energy-consuming equipment in operational industrial enterprises that was not rationally utilized in its original design due to limitations imposed by historical, technological, and conceptual factors. It includes waste heat from high-temperature exhaust gases, cooling media, waste steam and wastewater, high-temperature products and slag, chemical reactions, combustible waste gases and liquids, and waste materials. According to surveys, the total waste heat resources of various industries account for approximately 17% to 67% of their total fuel consumption, and about 60% of these resources are recyclable.

[0003] Air compressors are fundamental products of industrial modernization. The term "electrical and automation" often includes the meaning of "all-pneumatic." Air compressors provide air power and are the core equipment of pneumatic systems. They are the main body of electromechanical air supply devices. They are devices that convert the mechanical energy of a prime mover (usually an electric motor or diesel engine) into gas pressure energy and are compressed air pressure generating devices.

[0004] During operation, air compressors generate a large amount of heat, which is carried away from the machine body by the lubricating oil. The temperature of the lubricating oil discharged from the machine body is typically 90-105 degrees Celsius. Directly releasing the heat of the lubricating oil into the air results in significant heat loss and resource waste. Existing air compressors lack waste heat recovery capabilities, leading to excess waste heat generation and heat source pollution, which is detrimental to air quality. Therefore, to address these issues, our company has proposed a novel air compressor waste heat recovery and steam generation device. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a novel air compressor waste heat recovery steam generation device, which utilizes an ultra-high temperature heat pump to recover the waste heat of the air compressor lubricating oil to generate steam, thereby achieving the effect of energy saving and emission reduction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel air compressor waste heat recovery steam generation device is provided, comprising a shell, inside which are arranged an ultra-high temperature heat pump, a steam generator, an oil pipe, and a hot water pipe. The ultra-high temperature heat pump is provided with a heat pump evaporator and a condenser. One end of the oil pipe is connected to the air compressor, and the other end of the oil pipe is connected to the oil side of the heat pump evaporator. One end of the hot water pipe is connected to the condenser, and the other end of the hot water pipe is connected to the steam generator.

[0007] Furthermore, a temperature sensor, a flow sensor, and an oil pump are installed on the oil pipe.

[0008] Furthermore, the hot water pipe is equipped with a temperature sensor, a flow sensor, a valve, and a hot water pump.

[0009] Furthermore, the top of the steam generator is provided with a water injection pipe, and the bottom of the steam generator is provided with a drain pipe and a support. There are two supports, which are respectively located on the left and right sides of the drain pipe. The drain pipe is provided with a valve.

[0010] Furthermore, the steam generator is equipped with a vacuum pipe and a steam intake pipe on the side away from the hot water pipe, and the steam intake pipe is equipped with a temperature sensor, a pressure sensor, and a valve.

[0011] Furthermore, a control cabinet is located on one side of the housing, and the temperature sensor, flow sensor, and pressure sensor are all electrically connected to the control cabinet.

[0012] Furthermore, the shell is provided with multiple flange connection holes, and the oil pipe, drain pipe, vacuum pipe, steam intake pipe, and water injection pipe are respectively connected to the shell through the flange connection holes.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] 1. This device sends high-temperature lubricating oil to the oil side of the heat pump evaporator through an oil pipe for heat exchange; after collecting the heat from the lubricating oil, the ultra-high temperature heat pump sends the heat to the condenser to exchange heat with the low-temperature water supplied by the steam generator. After being heated, the high-temperature hot water is sent back to the steam generator through a hot water pipe to produce steam; this device uses the ultra-high temperature heat pump to recover the waste heat of the air compressor lubricating oil to produce steam, thereby achieving the effect of energy saving and emission reduction.

[0015] 2. This device ensures a negative pressure working environment for the steam generator and timely utilization of steam through a vacuum pipe and a steam intake pipe, respectively. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a novel air compressor waste heat recovery steam generation device according to this utility model.

[0017] Explanation of the labels in the diagram:

[0018] 1. Flange connection hole; 2. Oil pipe; 3. Temperature sensor; 4. Flow sensor; 5. Valve; 6. Hot water pipe; 7. Bracket; 8. Drain pipe; 9. Vacuum pipe; 10. Pressure sensor; 11. Steam intake pipe; 12. Water injection pipe; 13. Steam generator; 14. Hot water pump; 15. Condenser; 16. Heat pump evaporator; 17. Ultra-high temperature heat pump; 18. Oil pump; 19. Control cabinet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0022] Please see Figure 1 A novel air compressor waste heat recovery steam generation device includes a shell, inside which are arranged an ultra-high temperature heat pump 17, a steam generator 13, an oil pipe 2, and a hot water pipe 6. The ultra-high temperature heat pump 17 is equipped with a heat pump evaporator 16 and a condenser 15. One end of the oil pipe 2 is connected to the air compressor, and the other end of the oil pipe 2 is connected to the oil side of the heat pump evaporator 16. One end of the hot water pipe 6 is connected to the condenser 15, and the other end of the hot water pipe 6 is connected to the steam generator 13.

[0023] Temperature sensor 3, flow sensor 4, and oil pump 18 are installed on oil pipe 2.

[0024] Temperature sensor 3, flow sensor 4, valve 5, and hot water pump 14 are installed on hot water pipe 6.

[0025] High-temperature lubricating oil is sent to the oil side of the heat pump evaporator 16 through oil pipe 2 for heat exchange. After heat exchange, the low-temperature lubricating oil is sent out through the outlet of the heat pump evaporator 16. After collecting the heat from the lubricating oil, the ultra-high temperature heat pump 17 sends the heat to the condenser 15 to exchange heat with the low-temperature water supplied by the steam generator 13. After the temperature rises, the high-temperature hot water is sent back to the steam generator 13 through the hot water pipe 6 to produce steam.

[0026] The top of the steam generator 13 is equipped with a water injection pipe 12; the bottom of the steam generator 13 is equipped with a drain pipe 8 and a support 7. There are two supports 7, which are respectively located on the left and right sides of the drain pipe 8. A valve 5 is installed on the drain pipe 8. When the water volume of the device is insufficient, water is added through the water injection pipe 12; when the sludge reaches a certain amount, it is discharged from the device through the drain pipe 8; the steam generator 13 is supported and fixed by setting up two supports 7.

[0027] A vacuum pipe 9 and a steam intake pipe 11 are located on the side of the steam generator 13 furthest from the hot water pipe 6. The steam intake pipe 11 is equipped with a temperature sensor 3, a pressure sensor 10, and a valve 5. Before generating steam, the air in the steam generator 13 is extracted using the vacuum pipe 9; the steam temperature can be detected by the temperature sensor 3 on the steam intake pipe 11. The vacuum pipe 9 and the steam intake pipe 11 respectively ensure a negative pressure working environment for the steam generator 13 and timely utilization of steam.

[0028] A control cabinet 19 is located on one side of the housing. Temperature sensor 3, flow sensor 4, and pressure sensor 10 are all electrically connected to the control cabinet 19. The device collects temperature, flow, and pressure data from the temperature sensor 3, flow sensor 4, and pressure sensor 10, processes the data in the control cabinet 19, and then outputs control signals for control.

[0029] The shell is provided with multiple flange connection holes 1. The oil pipe 2, the drain pipe 8, the vacuum pipe 9, the steam intake pipe 11, and the water injection pipe 12 are respectively fixedly connected to the shell through the flange connection holes 1.

[0030] Working principle:

[0031] This utility model relates to a waste heat recovery steam generation device for air compressors. High-temperature lubricating oil is fed into the oil side of a heat pump evaporator 16 via oil pipe 2 for heat exchange. The cooled lubricating oil, after heat exchange, is discharged from the outlet of the heat pump evaporator 16. An ultra-high temperature heat pump 17 collects heat from the lubricating oil and sends it to a condenser 15 to exchange heat with low-temperature water supplied by a steam generator 13. After heating, the high-temperature hot water is returned to the steam generator 13 via hot water pipe 6 to produce steam. When the system water volume is insufficient, water is added through water injection pipe 12. When sludge reaches a certain quantity, it is discharged from the device through drain pipe 8. Before steam generation, air is extracted from the steam generator 13 using a vacuum pipe 9. The steam temperature is detected by a temperature sensor 3 on the steam intake pipe 11, which ensures timely utilization of the steam. By utilizing the ultra-high temperature heat pump 17 to recover waste heat from the air compressor lubricating oil to generate steam, energy conservation and emission reduction are achieved.

[0032] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A new type of steam generator for recovering waste heat from an air compressor, comprising a housing, characterized in that: The shell is internally provided with an ultra-high temperature heat pump (17), a steam generator (13), an oil pipe (2) and a hot water pipe (6), the ultra-high temperature heat pump (17) is internally provided with a heat pump evaporator (16) and a condenser (15), one end of the oil pipe (2) is connected with an air compressor, the other end of the oil pipe (2) is connected with the oil side of the heat pump evaporator (16), one end of the hot water pipe (6) is connected with the condenser (15), and the other end of the hot water pipe (6) is connected with the steam generator (13).

2. A novel steam generation device for recovering waste heat from an air compressor as claimed in claim 1, wherein: The oil pipe (2) is provided with a temperature sensor (3), a flow sensor (4) and an oil pump (18).

3. A novel steam generation device for recovering waste heat from an air compressor as claimed in claim 1, wherein: The hot water pipe (6) is provided with a temperature sensor (3), a flow sensor (4), a valve (5) and a hot water pump (14).

4. A novel steam generation device for recovering waste heat from an air compressor as claimed in claim 1, wherein: The steam generator (13) is provided with a water injection pipe (12) at the top and a blowdown pipe (8) and a support (7) at the bottom, the support (7) is provided with two supports arranged on the left and right sides of the blowdown pipe (8), and the blowdown pipe (8) is provided with a valve (5).

5. A novel steam generation device for recovering waste heat from an air compressor as claimed in claim 1, wherein: The steam generator (13) is provided with a vacuum pipe (9) and a steam taking pipe (11) away from the hot water pipe (6), the steam taking pipe (11) is provided with a temperature sensor (3), a pressure sensor (10) and a valve (5).

6. A novel steam generation device for recovering waste heat from an air compressor as claimed in claim 1, wherein: The shell is provided with a control cabinet (19) on one side, and the temperature sensor (3), the flow sensor (4) and the pressure sensor (10) are electrically connected with the control cabinet (19).

7. A novel steam generation device for recovering waste heat from an air compressor as claimed in claim 1, wherein: The shell is provided with a plurality of flange connection holes (1), and the oil pipe (2), the blowdown pipe (8), the vacuum pipe (9), the steam taking pipe (11) and the water injection pipe (12) are connected with the shell through the flange connection holes (1).

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