Heat exchange device for air compression station and vaporizer

Abstract

The utility model discloses a heat exchange device for an air compression station and a vaporizer, a waste heat collecting mechanism is arranged in the air compression station, and a heat supply end of the waste heat collecting mechanism is used for heating the vaporizer; the waste heat collecting mechanism comprises gas collecting hoods, an exhaust fan, a heat exchanger, a three-way pipe, a heat storage box and a circulating pump, the gas collecting hoods correspond to devices in the air compression station one to one, the heat exchanger communicates with the gas outlet ends of the gas collecting hoods through pipelines and the exhaust fan, and the gas inlet end of the three-way pipe communicates with the gas outlet end of the heat exchanger. The heat exchanger, the heat storage tank and the circulating pump form a closed-loop circulation path for the liquid heat storage agent, and the vaporizer is located in the heat storage tank. The heat exchange device can collect heat of the air compression station, heat in air of the air compression station is absorbed by the liquid heat storage agent through the heat exchanger, heat waste is reduced, the heated liquid heat storage agent circularly flows in the heat storage box to heat the vaporizer, the vaporizer is prevented from being frozen and frosted, and normal use of the vaporizer is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a heat exchange device for an air compressor station and a vaporizer. Background Art

[0002] Compressed air is the most environmentally friendly power source in industrial production, and the compressed air station (hereinafter referred to as the air compressor station) is a type of equipment used to produce compressed air, consisting of air compressors, air storage tanks (divided into primary and secondary air storage tanks), air treatment and purification equipment, and cold dryers. When the air compressor station is working, especially the compressor, it will generate a lot of heat. This part of the heat accumulates in the station and needs an additional exhaust fan to extract and empty it, which wastes the heat.

[0003] Vaporizer is an energy-saving equipment for industrial and civilian use. Its function is to convert liquid gas into gaseous gas. There are many gases involved, such as liquid oxygen, liquid nitrogen, liquid argon, LCO2, etc. In the metal smelting industry, the combustion supply in the furnace requires a vaporizer to gasify the liquid oxygen before it can be used. The transformation of the liquid and gas phases will absorb a lot of heat, which will cause the vaporizer to freeze severely during use, especially in winter when the temperature is low, which seriously affects the use of liquid oxygen.

[0004] Therefore, there is an urgent need for a heat exchange device that can be used for an air compressor station and a vaporizer, which can utilize the excess heat of the air compressor station to heat the vaporizer and prevent it from freezing, which not only saves energy and reduces consumption, but also facilitates the normal use of the vaporizer. Utility Model Content

[0005] The utility model aims to provide a heat exchange device for an air compressor station and a vaporizer, so as to solve the problem that the heat exchange device for the air compressor station and the vaporizer is lacking, resulting in heat waste when the air compressor station is working and the vaporizer is easy to freeze.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A heat exchange device for an air compressor station and a vaporizer, comprising an air compressor station and a vaporizer, wherein a waste heat collection mechanism is arranged in the air compressor station, and a heat supply end of the waste heat collection mechanism is used for heating the vaporizer; wherein:

[0008] The waste heat collection mechanism includes an air collecting hood, an exhaust fan, a heat exchanger, a tee pipe, a heat storage tank and a circulation pump. The multiple air collecting hoods are arranged in a one-to-one correspondence with each device in the air compression station. The heat exchanger is connected to the air outlet end of the air collecting hood through a pipeline and the exhaust fan, and the air inlet end of the tee pipe is connected to the air outlet end of the heat exchanger. The heat exchanger, the heat storage tank and the circulation pump form a closed-loop circulation passage for the liquid heat storage agent, and the vaporizer is located in the heat storage tank.

[0009] A further technical solution is: a three-way valve is arranged on the three-way pipe.

[0010] A further technical solution is: one gas outlet end of the three-way pipe is connected to the external environment, and the other gas outlet end of the three-way pipe is connected to the gas inlet end of the air compressor station.

[0011] A further technical solution is: the heat exchanger includes a shell, a tube bundle and a tube head, the shell, the heat storage tank and the circulation pump form a closed-loop circulation passage for the liquid heat storage agent, the tube bundle is installed in the shell, the tube head is respectively connected to both ends of the tube bundle, and the tube head is connected to the pipeline.

[0012] A further technical solution is that a rain shelter is arranged on the top of the three-way pipe.

[0013] A further technical solution is: a thermometer is provided on the heat storage box.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0015] The utility model proposes a heat exchange device for an air compressor station and a vaporizer. The heat exchange device can collect the heat produced by the air compressor station. The heat in the air in the air compressor station passes through the heat exchanger and is absorbed by a liquid heat storage agent. The heated liquid heat storage agent circulates in the heat storage tank. On the one hand, the device absorbs the heat of the air compressor station to reduce the waste of heat; on the other hand, it heats the vaporizer to prevent the vaporizer from freezing and frosting, thereby ensuring the normal use of the vaporizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic structural diagram of a heat exchange device for an air compressor station and a vaporizer.

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the heat exchanger.

[0018] Figure numerals: 1. air compressor station; 2. vaporizer; 3. waste heat collection mechanism; 4. air collecting hood; 5. exhaust fan; 6. heat exchanger; 7. three-way pipe; 8. heat storage tank; 9. circulation pump; 10. pipeline; 11. three-way valve; 12. shell; 13. tube bundle; 14. pipe head; 15. rain shelter; 16. thermometer. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] In this embodiment, Figure 1 and Figure 2 As shown, a heat exchange device for an air compressor station and a vaporizer includes an air compressor station 1 and a vaporizer 2. A waste heat collection mechanism 3 is provided in the air compressor station 1, and a heating end of the waste heat collection mechanism 3 is used for heating the vaporizer 2; the waste heat collection mechanism 3 includes an air collecting hood 4, an exhaust fan 5, a heat exchanger 6, a three-way pipe 7, a heat storage tank 8 and a circulation pump 9. A plurality of air collecting hoods 4 are arranged one by one corresponding to each device in the air compressor station 1. The heat exchanger 6 is connected to the air outlet end of the air collecting hood 4 through a pipeline 10 and the exhaust fan 5, and the air inlet end of the three-way pipe 7 is connected to the air outlet end of the heat exchanger 6. The heat exchanger 6, the heat storage tank 8 and the circulation pump 9 form a closed-loop circulation passage for a liquid heat storage agent, and the vaporizer 2 is located in the heat storage tank 8.

[0027] When various devices in the air compression station 1 are working, especially the air compressor, a large amount of heat will be generated. The exhaust fan 5 will extract the heat to the heat exchanger 6 through the pipeline 10. The heat exchanger 6 will exchange the heat in the gas to the liquid heat storage agent (usually water, and antifreeze such as salt can also be added to the water). Under the action of the circulating pump 9, the liquid heat storage agent enters the heat storage tank 8 to heat the vaporizer 2 therein to prevent it from freezing and frosting, and utilize the excess heat of the air compression station 1 to reduce energy waste.

[0028] Embodiment 2:

[0029] Based on the above embodiment, this embodiment shows that a three-way valve 11 is provided on the three-way pipe 7. One outlet end of the three-way pipe 7 is connected to the external environment, and the other outlet end of the three-way pipe 7 is connected to the air inlet end of the air compressor station 1.

[0030] The three-way valve 11 can be used to control the gas outlet direction of the three-way pipe 7.

[0031] After the liquid heat storage agent in the heat exchanger 6 absorbs the heat in the air, the air will cool down. At this time, the low-temperature air can be discharged into the air compression station 1 to reduce the ambient temperature. When the temperature in the air compression station 1 is too high and the air temperature coming out of the heat exchanger 6 is also high, the exhaust direction is switched through the three-way valve 11 to be directly discharged.

[0032] Preferably, the heat exchanger 6 includes a shell 12, a tube bundle 13 and a tube head 14. The shell 12, the heat storage tank 8 and the circulation pump 9 form a closed-loop circulation passage for the liquid heat storage agent. The tube bundle 13 is installed in the shell 12, and the tube head 14 is respectively connected to both ends of the tube bundle 13, and the tube head 14 is connected to the pipeline 10.

[0033] The air in the pipeline 10 is divided through the tube bundle 13, which can increase the contact area with the liquid heat storage agent in the shell 12 and improve the heat exchange efficiency.

[0034] Preferably, a rain shelter 15 is provided on the top of the tee pipe 7 .

[0035] The rain shelter 15 prevents rainwater from flowing back into the three-way pipe 7.

[0036] Preferably, a thermometer 16 is provided on the heat storage tank 8 .

[0037] The thermometer 16 can help the workers to more accurately grasp the temperature in the heat storage tank 8, and thus control the circulation speed of the liquid heat storage agent.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat exchange device for an air compressor station and a vaporizer, comprising an air compressor station (1) and a vaporizer (2), characterized in that: The air compression station (1) is provided with a waste heat collection mechanism (3), and the heat supply end of the waste heat collection mechanism (3) is used for heating the vaporizer (2); wherein: The waste heat collection mechanism (3) comprises an air collecting hood (4), an exhaust fan (5), a heat exchanger (6), a three-way pipe (7), a heat storage tank (8) and a circulation pump (9). The plurality of air collecting hoods (4) are arranged in a one-to-one correspondence with the various devices in the air compression station (1). The heat exchanger (6) is connected to the air outlet end of the air collecting hood (4) through a pipeline (10) and the exhaust fan (5). The air inlet end of the three-way pipe (7) is connected to the air outlet end of the heat exchanger (6). The heat exchanger (6), the heat storage tank (8) and the circulation pump (9) form a closed-loop circulation passage for a liquid heat storage agent. The vaporizer (2) is located in the heat storage tank (8).

2. The heat exchange device for an air compressor station and a vaporizer according to claim 1, characterized in that: The three-way pipe (7) is provided with a three-way valve (11).

3. The heat exchange device for an air compressor station and a vaporizer according to claim 1, characterized in that: One gas outlet end of the three-way pipe (7) is in communication with the external environment, and the other gas outlet end of the three-way pipe (7) is in communication with the gas inlet end of the air compressor station (1).

4. The heat exchange device for an air compressor station and a vaporizer according to claim 1, characterized in that: The heat exchanger (6) comprises a shell (12), a tube bundle (13) and a tube head (14); the shell (12), the heat storage tank (8) and the circulation pump (9) form a closed-loop circulation passage for a liquid heat storage agent; the tube bundle (13) is installed in the shell (12); the tube head (14) is respectively connected to both ends of the tube bundle (13), and the tube head (14) is connected to the pipeline (10).

5. The heat exchange device for an air compressor station and a vaporizer according to claim 1, characterized in that: A rain shed (15) is provided on the top of the three-way pipe (7).

6. The heat exchange device for an air compressor station and a vaporizer according to claim 1, characterized in that: The heat storage box (8) is provided with a thermometer (16).

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