Air compressor heat recovery energy-saving equipment with pre-cooling function

Abstract

The utility model discloses an air compressor heat recovery energy-saving device with a pre-cooling function, which comprises an air compressor main body and a device body connected with the air compressor main body, the device body is composed of a shell, a gas-liquid separator and a pump body, and the gas-liquid separator and the pump body are arranged on one side of the outer portion of the shell. A liquid outlet of the gas-liquid separator is connected with an inlet of the pump body through a guide pipe, a first cavity and a second cavity are formed in the shell through a partition plate, a first pipeline is arranged in the first cavity of the shell, one end of the first pipeline is connected with a gas outlet of the air compressor body, and the other end of the first pipeline is connected with a gas outlet of the pump body. One end of the first pipeline is connected with a gas inlet of the gas-liquid separator, the other end of the first pipeline is connected with a gas inlet of the gas-liquid separator, a second pipeline and a third pipeline are arranged in the second cavity of the shell, and the temperature of output high-pressure gas can be rapidly adjusted by controlling opening and closing of the first electromagnetic valve and the second electromagnetic valve.

Description

Technical Field

[0001] The utility model relates to the technical field related to energy-saving equipment, and in particular to an air compressor heat recovery energy-saving equipment with a pre-cooling function. Background Art

[0002] An air compressor is a device used to compress gas. It is similar to a water pump in structure. Most air compressors are reciprocating piston type, rotary blade or rotary screw type. Centrifugal compressors are the most widely used type. Many factories use air compressors to generate air pressure in the production process to provide air pressure for various equipment. At present, air compressors are widely used in my country. Since a large number of air compressors in electronics and light industries use internal air cooling structure, if water cooling is used, the air compressor will generate a lot of waste heat when working. In the past, it was discharged into the air by radiators and cooling fans without using this heat energy, which caused high operating costs and environmental pollution.

[0003] The patent with patent number 202121217924.9 discloses an air compressor heat recovery and energy-saving equipment with a pre-cooling function, including an air compressor, a gas-liquid separator, a drying box, a heat exchanger and a water supply tower; the gas-liquid separator is connected to the air compressor, the drying box and the heat exchanger through pipelines respectively; the heat exchanger is connected to the air compressor and the water supply tower respectively through pipelines; the high-temperature oil and gas mixture produced by the air compressor is separated by the gas-liquid separator and then heat energy is recovered respectively, the separated hot air enters the drying box for drying wet materials, and the separated hot oil enters the heat exchanger and becomes cold oil after heat exchange and returns to the air compressor; the cooling water enters the heat exchanger and heat exchanges with the hot oil and then heats up and enters the water supply tower for production or domestic water; on the one hand, the air compressor is dissipated to improve the working state of the air compressor, and on the other hand, the waste heat of the air compressor is recycled to avoid waste and save energy.

[0004] The above-mentioned energy-saving recycling equipment has the following shortcomings when used: the high-pressure gas output by the device as a whole is high-temperature. In actual use, the air compressor is generally used to compress the gas and then store it. At this time, the temperature carried by the high-pressure gas is not recovered, resulting in a heat recovery rate that needs to be improved. Utility Model Content

[0005] The utility model aims to provide an air compressor heat recovery and energy-saving device with a pre-cooling function to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air compressor heat recovery and energy-saving device with a pre-cooling function, comprising an air compressor main body and an equipment body connected to the air compressor main body, the equipment body consisting of a shell and a gas-liquid separator and a pump body arranged on one side outside the shell, the liquid outlet of the gas-liquid separator is connected to the inlet of the pump body through a conduit, the interior of the shell is provided with a first chamber and a second chamber through a partition, the shell is provided with a first pipeline inside the first chamber, one end of the first pipeline is connected to the gas outlet of the air compressor main body, and the other end of the first pipeline is connected to the gas inlet of the gas-liquid separator, the shell is provided with a second pipeline and a third pipeline in the second chamber, and the two ends of the second pipeline are respectively connected to the two ends of the first pipeline through a fourth pipeline and a fifth pipeline, one end of the third pipeline is connected to the oil port of the air compressor main body, and the other end of the third pipeline is connected to the outlet of the pump body.

[0007] Preferably, the second pipeline is entirely made of coiled pipe.

[0008] Preferably, a water inlet pipe and a drain pipe are further provided on the shell, and the water inlet pipe and the drain pipe are respectively arranged below and above the shell, and both the water inlet pipe and the drain pipe are connected to the second chamber.

[0009] Preferably, a first solenoid valve and a second solenoid valve are respectively provided at one end of the first pipeline close to the air compressor body and at the upper end of the fourth pipeline.

[0010] Preferably, a first one-way valve and a second one-way valve are respectively provided at one end of the first pipeline away from the air compressor body and at the upper end of the fifth pipeline.

[0011] Preferably, a heat-insulating layer is provided on the inner wall of the second chamber of the shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by arranging the first chamber and the second chamber inside the shell, the water inlet pipe and the drain pipe are connected to the second chamber, and at the same time, the first pipe, the second conduit, and the third pipe are arranged inside the shell, and at the same time, the two ends of the first pipe and the second pipe are connected by the fourth pipe and the fifth pipe, and the first solenoid valve, the second solenoid valve, the first check valve, and the second check valve are arranged at the connection, and then during use, by controlling the opening and closing of the first solenoid valve and the second solenoid valve, the temperature of the output high-pressure gas can be quickly adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For the utility model Figure 1 Magnified view at A in the middle;

[0015] Figure 3 For the utility model Figure 1 Magnified view at B.

[0016] In the figure: 1. air compressor body; 2. shell; 3. gas-liquid separator; 4. pump body; 5. conduit; 6. partition; 7. first chamber; 8. second chamber; 9. first pipeline; 10. second pipeline; 11. third pipeline; 12. fourth pipeline; 13. fifth pipeline; 14. water inlet pipe; 15. drain pipe; 16. first solenoid valve; 17. second solenoid valve; 18. first check valve; 19. second check valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution: an air compressor heat recovery energy-saving device with a pre-cooling function, comprising an air compressor body 1 and a device body connected to the air compressor body 1, the device body consisting of a shell 2 and a gas-liquid separator 3 and a pump body 4 arranged on one side of the shell 2, the liquid outlet of the gas-liquid separator 3 and the inlet of the pump body 4 are connected through a conduit 5, the shell 2 is provided with an insulation layer on the inner wall of the second chamber 8, the shell 2 is further provided with a water inlet pipe 14 and a drain pipe 15, the water inlet pipe 14 and the drain pipe 15 are respectively arranged below and above the shell 2, and the water inlet pipe 14 and the drain pipe 15 are both connected to the second chamber 8, the shell A first chamber 7 and a second chamber 8 are provided inside the shell 2 through a partition 6. A first pipe 9 is provided inside the first chamber 7 of the shell 2. One end of the first pipe 9 is connected to the gas outlet of the air compressor body 1, and the other end of the first pipe 9 is connected to the gas inlet of the gas-liquid separator 3. A second pipe 10 and a third pipe 11 are provided in the second chamber 8 of the shell 2, and the two ends of the second pipe 10 are respectively connected to the two ends of the first pipe 9 through a fourth pipe 12 and a fifth pipe 13. One end of the third pipe 11 is connected to the oil port of the air compressor body 1, and the other end of the third pipe 11 is connected to the outlet of the pump body 4.

[0019] The second pipe 10 is entirely made of coiled pipe, which effectively extends the length of the second pipe 10 and thus improves the heat exchange efficiency.

[0020] A first solenoid valve 16 and a second solenoid valve 17 are respectively provided at one end of the first pipeline 9 close to the air compressor body 1 and the upper end of the fourth pipeline 12. According to actual use requirements, the first solenoid valve 16 and the second solenoid valve 17 are controlled to realize the flow direction of the high-temperature and high-pressure high-temperature oil-gas mixture.

[0021] A first one-way valve 18 and a second one-way valve 19 are respectively provided at one end of the first pipeline 9 away from the air compressor body 1 and at the upper end of the fifth pipeline 13, which effectively prevent the high-temperature and high-pressure oil and gas mixture from flowing back at the connection of the first pipeline 9 or the fifth pipeline 13 during the transportation process.

[0022] Specifically, when the utility model is used, cold water is injected into the second chamber 8 through the water inlet pipe 14 until the water flows out from the drain pipe 15. The air compressor body 1 works to produce a high-temperature and high-pressure high-temperature oil-gas mixture that passes through the first pipeline 9 equipment body, and then passes through the gas-liquid separator 3 for oil and gas separation. The separated oil is transported by the pump body 4 and returned to the air compressor body 1 through the third pipeline 11.

[0023] The first solenoid valve 16 and the second solenoid valve 17 are adjusted according to whether the high-pressure gas to be output is hot air or cold air. That is, when the high-pressure gas to be output is hot air, the first solenoid valve 16 is opened and the second solenoid valve 17 is closed; conversely, when the high-pressure gas to be output is cold air, the first solenoid valve 16 is closed and the second solenoid valve 17 is opened.

[0024] When the first solenoid valve 16 is opened and the second solenoid valve 17 is closed, the high-temperature oil-gas mixture directly enters the gas-liquid separator 3 through the first pipeline 9, and outputs high-temperature and high-pressure gas and high-temperature oil. In the process of the high-temperature oil flowing back through the third pipeline 11, it exchanges heat with the cooling water in the second chamber 8 to achieve heat recovery;

[0025] When the first solenoid valve 16 is closed and the second solenoid valve 17 is opened, the high-temperature oil-gas mixture enters the second pipe 10 through the first pipe 9 and the fourth pipe 12, and exchanges heat with the cooling water in the second chamber 8. Subsequently, it enters the gas-liquid separator 3 through the fifth pipe 13 and the first pipe 9, and outputs high-pressure gas and oil with lower temperature. At this time, the oil flows back to the air compressor body 1 through the third pipe 11.

Claims

1. An air compressor heat recovery and energy-saving device with pre-cooling function, characterized in that: The invention comprises an air compressor body (1) and an equipment body connected to the air compressor body (1), wherein the equipment body comprises a shell (2), a gas-liquid separator (3) and a pump body (4) arranged on one side outside the shell (2), the liquid outlet of the gas-liquid separator (3) and the inlet of the pump body (4) being connected via a conduit (5), the interior of the shell (2) being provided with a first chamber (7) and a second chamber (8) via a partition (6), the shell (2) being provided with a first pipe (9) inside the first chamber (7), one end of the first pipe (9) being connected to the air compressor body The first pipe (9) is connected to the gas outlet of the air compressor body (1), the other end of the first pipe (9) is connected to the gas inlet of the gas-liquid separator (3), the housing (2) is provided with a second pipe (10) and a third pipe (11) in the second chamber (8), and the two ends of the second pipe (10) are respectively connected to the two ends of the first pipe (9) through a fourth pipe (12) and a fifth pipe (13), one end of the third pipe (11) is connected to the oil port of the air compressor body (1), and the other end of the third pipe (11) is connected to the outlet of the pump body (4).

2. The air compressor heat recovery and energy-saving device with pre-cooling function according to claim 1 is characterized in that: The second pipeline (10) is entirely made of coiled pipe.

3. The air compressor heat recovery and energy-saving device with pre-cooling function according to claim 1 is characterized in that: The shell (2) is also provided with a water inlet pipe (14) and a drain pipe (15), the water inlet pipe (14) and the drain pipe (15) are respectively arranged below and above the shell (2), and the water inlet pipe (14) and the drain pipe (15) are both in communication with the second chamber (8).

4. The air compressor heat recovery and energy-saving device with pre-cooling function according to claim 1 is characterized in that: A first solenoid valve (16) and a second solenoid valve (17) are respectively provided at one end of the first pipeline (9) close to the air compressor body (1) and at the upper end of the fourth pipeline (12).

5. The air compressor heat recovery and energy-saving device with pre-cooling function according to claim 1 is characterized in that: A first one-way valve (18) and a second one-way valve (19) are respectively provided at one end of the first pipeline (9) away from the air compressor body (1) and at the upper end of the fifth pipeline (13).

6. The air compressor heat recovery and energy-saving device with pre-cooling function according to claim 1 is characterized in that: The shell (2) is provided with a heat-insulating layer on the inner wall of the second chamber (8).

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