Ultrahigh-pressure gas heat exchanger

Abstract

The utility model discloses an ultrahigh-pressure gas heat exchanger which comprises a gas inlet pipe, a shell and high-pressure heat exchange pipes arranged in the shell in a central symmetry mode. The left end cover and the right end cover are arranged on the left side and the right side of the shell correspondingly, a first communication structure used for the air inlet pipe and the high-pressure heat exchange pipe is arranged on the inner side of the left end of the shell, and a second communication structure used for the high-pressure heat exchange pipe and the exhaust pipe is arranged on the inner side of the right end of the shell; supports fixed through bolts are symmetrically nested outside the shell, and sealing structures used for the left end cover and the right end cover are arranged on the inner sides of the left end and the right end of the shell correspondingly. An air inlet pipe and an exhaust pipe penetrate through the inner sides of the middles of the left end cover and the right end cover correspondingly, and a water outlet pipe fixedly communicated with the left end cover is arranged above the air inlet pipe. The ultrahigh-pressure gas heat exchanger takes cold water as a medium, and has the characteristics of high working pressure, good sealing performance, high heat exchange efficiency, compact structure, corrosion resistance and low cost.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to an ultra-high pressure gas heat exchanger. Background Technology

[0002] When a gas is compressed, both its temperature and pressure will increase. In actual production processes, it is necessary to reduce the temperature of the compressed high-pressure gas to ambient temperature in order to eliminate the influence of temperature on pressure fluctuations. This requires an ultra-high pressure gas heat exchanger to cool the high-pressure gas.

[0003] Currently used high-pressure gas cooling methods include:

[0004] 1. Using an air-cooled radiator, the air-cooled radiator accelerates the airflow speed on the surface of the high-pressure gas container, and uses air as the cooling medium for heat exchange. This cooling method has low heat transfer efficiency and long cooling time.

[0005] 2. A shell-and-tube heat exchanger is used. The fluid to be cooled enters the tube side from the inlet distribution chamber and flows out from the outlet distribution chamber. The cooling medium enters and exits through openings in the shell. Tube sheets separate the two media at both ends of the heat exchanger. The two fluids at different temperatures flow in the tube side and shell side respectively, exchanging heat through the tube walls as heat transfer surfaces. With this structure, the shell strength must simultaneously meet the pressure requirements of both the cooling medium and the cooled medium. Therefore, the operating pressure is low, and it cannot achieve cooling of ultra-high pressure gases.

[0006] Therefore, we propose an ultra-high pressure gas heat exchanger to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide an ultra-high pressure gas heat exchanger to solve the problems mentioned in the background art, such as low heat transfer efficiency, long cooling time, low working pressure, and inability to cool ultra-high pressure gases using the currently used high pressure gas cooling method.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an ultra-high pressure gas heat exchanger, comprising an inlet pipe, a shell, and high-pressure heat exchange tubes symmetrically arranged within the shell;

[0009] Also includes:

[0010] The left end cover and right end cover are respectively provided on the left and right sides of the shell, and a first connecting structure for the air inlet pipe and the high-pressure heat exchange pipe is provided on the inner side of the left end of the shell, and a second connecting structure for the high-pressure heat exchange pipe and the exhaust pipe is provided on the inner side of the right end of the shell.

[0011] The outer shell is symmetrically nested with bolted brackets, and the inner sides of both the left and right ends of the shell are provided with sealing structures for the left and right end covers.

[0012] Preferably, an air inlet pipe and an exhaust pipe are respectively passed through the inner side of the middle of the left end cover and the right end cover, and a water outlet pipe fixedly connected to the left end cover is provided above the air inlet pipe, and a water inlet pipe fixedly connected to the right end cover is provided below the exhaust pipe.

[0013] Preferably, both the intake pipe and the exhaust pipe are equipped with ferrule connectors, and the individual ferrule connectors are fixed inside the right end cover and the left end cover, respectively.

[0014] Preferably, the first connecting structure includes a high-pressure air intake block, a high-pressure air intake branch pipe, and a connector. The high-pressure air intake block is threaded to the outer side of the right end of the air intake pipe. The outer end of the high-pressure air intake block is fixedly connected to a centrally symmetrically arranged high-pressure air intake branch pipe. A connector is fixedly connected between the high-pressure air intake branch pipe and the high-pressure heat exchange tube.

[0015] Preferably, the second connection structure includes a connector, a high-pressure gas outlet block, and a high-pressure gas outlet branch pipe. The high-pressure gas outlet block is located on the inner side of the right end of the shell. The outer end of the high-pressure gas outlet block is fixedly connected to a centrally symmetrically arranged high-pressure gas outlet branch pipe, and a connector is fixedly connected between the high-pressure heat exchange tube and the high-pressure gas outlet branch pipe.

[0016] Preferably, the sealing structure includes a sealing ring and a retaining ring for the hole, and the sealing ring and the retaining ring for the hole are symmetrically fixed on the left and right sides of the housing. The retaining ring for the hole is located outside the sealing ring, and the sealing ring is attached to the outer side of the right end cover and the left end cover.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the ultra-high pressure gas heat exchanger uses cold water as the medium and has the characteristics of high working pressure, good sealing performance, high heat exchange efficiency, compact structure, corrosion resistance and low cost.

[0018] 1. It is equipped with an air inlet pipe, a shell, a right end cover, and a sealing ring. The right end cover and the left end cover are respectively installed inside the right end and the left end of the air inlet pipe. The exhaust pipe and the air inlet pipe pass through the right end cover and the left end cover, respectively. The exhaust pipe and the air inlet pipe are equipped with compression fittings that are fixedly installed with the right end cover and the left end cover. The right end cover and the left end cover are sealed with the shell by the sealing ring. The right end cover and the left end cover are fixed with the shell by the groove on the shell through the hole with the retaining ring. Therefore, the ultra-high pressure gas heat exchanger has the characteristics of high working pressure and good sealing performance.

[0019] 2. The device is equipped with a support frame, a shell, high-pressure heat exchange tubes, and connectors. The shell is fitted with a bolt-fixed support frame, and the high-pressure heat exchange tubes are symmetrically arranged centrally within the shell. The inlet pipe connects to the high-pressure heat exchange tubes via a high-pressure inlet section, a high-pressure inlet branch pipe, and connectors. The high-pressure heat exchange tubes connect to the exhaust pipe via connectors, a high-pressure outlet branch pipe, and a high-pressure outlet section. Furthermore, the lower outer side of the right end cover and the upper outer side of the left end cover are respectively fixedly connected to a water inlet pipe and a water outlet pipe. Therefore, this ultra-high pressure gas heat exchanger features high heat exchange efficiency, compact structure, corrosion resistance, and low cost. Attached Figure Description

[0020] Figure 1 This is a frontal cross-sectional three-dimensional structural diagram of the present invention;

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 This is a frontal cross-sectional view of the present invention.

[0023] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0024] Figure 5 This is a schematic diagram of the left side structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure on the right side of this utility model.

[0026] In the diagram: 1. Air inlet pipe; 2. Water outlet pipe; 3. High-pressure air inlet section; 4. High-pressure air inlet branch pipe; 5. Support; 6. Shell; 7. High-pressure heat exchange tube; 8. Connector; 9. Right end cover; 10. Sealing ring; 11. Hole retaining ring; 12. High-pressure air outlet section; 13. Exhaust pipe; 14. High-pressure air outlet branch pipe; 15. Water inlet pipe; 16. Compression fitting; 17. Left end cover. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6This utility model provides a technical solution: an ultra-high pressure gas heat exchanger, including an inlet pipe 1, a water outlet pipe 2, a high-pressure inlet section 3, a high-pressure inlet branch pipe 4, a support 5, a shell 6, high-pressure heat exchange tubes 7, a connector 8, a right end cover 9, a sealing ring 10, a hole retaining ring 11, a high-pressure outlet section 12, an exhaust pipe 13, a high-pressure outlet branch pipe 14, a water inlet pipe 15, a compression fitting 16, and a left end cover 17. The shell 6 and the high-pressure heat exchange tubes 7 are symmetrically arranged centrally within the shell 6. The left end cover 17 and the right end cover 9 are respectively arranged on the left and right sides of the shell 6. Furthermore, a connection for the inlet pipe 1 and the high-pressure heat exchange tubes 7 is provided on the inner side of the left end of the shell 6. The first connecting structure includes a high-pressure air intake block 3, a high-pressure air intake pipe 4, and a connector 8. The high-pressure air intake block 3 is threaded to the outer side of the right end of the air intake pipe 1. The outer end of the high-pressure air intake block 3 is fixedly connected to the centrally symmetrically arranged high-pressure air intake pipe 4. The high-pressure air intake pipe 4 and the high-pressure heat exchange pipe 7 are fixedly connected by a connector 8. The inner side of the right end of the housing 6 is provided with a second connecting structure for the high-pressure heat exchange pipe 7 and the exhaust pipe 13. The second connecting structure includes a connector 8, a high-pressure air outlet block 12, and a high-pressure air outlet pipe 14. The high-pressure air outlet block 12 is located on the inner side of the right end of the housing 6.

[0029] The outer end of the high-pressure outlet section 12 is fixedly connected to a centrally symmetrically arranged high-pressure outlet branch pipe 14, and a connector 8 is fixedly connected between the high-pressure heat exchange pipe 7 and the high-pressure outlet branch pipe 14. A bolt-fixed bracket 5 is symmetrically nested around the outer shell 6, and sealing structures for the left end cover 17 and right end cover 9 are provided on the inner sides of both ends of the shell 6. The sealing structure includes a sealing ring 10 and a hole retaining ring 11, which are symmetrically fixed to the left and right sides of the shell 6. Located outside the sealing ring 10, and the sealing ring 10 is attached to the outer side of the right end cover 9 and the left end cover 17. The middle inner side of the left end cover 17 and the right end cover 9 are respectively connected by an air inlet pipe 1 and an exhaust pipe 13. A water outlet pipe 2 is provided above the air inlet pipe 1 and is fixedly connected to the left end cover 17. A water inlet pipe 15 is provided below the exhaust pipe 13 and is fixedly connected to the right end cover 9. A compression fitting 16 is installed outside the air inlet pipe 1 and the exhaust pipe 13, and the compression fitting 16 is fixedly fixed inside the right end cover 9 and the left end cover 17 respectively.

[0030] Working principle: such as Figure 1 , Figure 3 , Figure 5 and Figure 6Before using the high-pressure gas heat exchanger, it is first installed and fixed by the bracket 5 nested and fitted to the outer shell 6. Then, tap water or water from the outlet of a water chiller is introduced through the exhaust pipe 13 fixedly installed on the outer side of the lower end of the right end cover 9 as a cooling medium to fill the shell 6 with water. Water is drained through the water outlet pipe 2 fixedly installed on the outer side of the upper end of the left end cover 17. Next, high-pressure gas is introduced through the air inlet pipe 1 penetrating the inner side of the middle of the left end cover 17. Since the right side of the air inlet pipe 1 is fixedly connected to the high-pressure air inlet block 3, and the high-pressure air inlet branch pipe 4 is symmetrically arranged outside the high-pressure air inlet block 3 and fixedly connected to it, and the high-pressure air inlet branch pipe 4 is fixedly connected to the outside of the high-pressure air inlet branch pipe 4, and the connector 8 is fixedly connected to the left side of the high-pressure heat exchange tube 7, it is convenient for the high-pressure gas in the air inlet pipe 1 to flow sequentially through the high-pressure air inlet block 3, the high-pressure air inlet branch pipe 4 and the connector 8 into the high-pressure heat exchange tube 7, and through the high-pressure heat exchange tube 7 and the outside of the high-pressure heat exchange tube 7... Cooling water is used for heat exchange and cooling. Since a connector 8 is fixedly connected to the right side of the high-pressure heat exchange tube 7, and a high-pressure gas outlet branch pipe 14 is fixedly connected to the right side of the connector 8, and the high-pressure gas outlet branch pipe 14 is symmetrically fixed outside the high-pressure gas outlet block 12, and the high-pressure gas outlet block 12 is fixedly connected to the exhaust pipe 13, it is convenient for the gas that is cooled by heat exchange in the high-pressure heat exchange tube 7 to pass through the connector 8, the high-pressure gas outlet branch pipe 14 and the high-pressure gas outlet block 12, and then through the exhaust pipe 13. The pipes or components through which the ultra-high pressure gas flows are sealed by a metal conical seal. This metal conical seal has been standardized and serialized, and has the characteristics of high pressure resistance, good sealing performance and good reliability. Moreover, the inlet pipe 1, the high-pressure heat exchange tube 7 and the exhaust pipe 13 are all machined from standard stainless steel pipes without welds, which not only reduces product costs, but also makes the product safe and reliable. Thus, the ultra-high pressure gas heat exchanger has the characteristics of high heat exchange efficiency, compact structure, corrosion resistance and low cost.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6During the use of this ultra-high pressure gas heat exchanger, a ferrule connector 16 is installed on the outside of the inlet pipe 1 and fixedly connected to the left end cover 17, and a ferrule connector 16 is installed on the outside of the exhaust pipe 13 and fixedly connected to the right end cover 9. This facilitates the sealing performance of the inlet pipe 1 and the exhaust pipe 13 connected to the left end cover 17 and the right end cover 9, respectively. The right end cover 9 and the left end cover 17 are located on the inner side of the right end and the inner side of the left end of the inlet pipe 1, respectively. A sealing ring 10 is fitted on the outside of both the right end cover 9 and the left end cover 17, so the right end cover 9 and the left end cover 17 are sealed to the shell 6 by the sealing ring 10. Since the sealing ring 10 is provided with a retaining ring 11 with holes located on the inner side of the left and right ends of the shell 6, and the right end cover 9 and the left end cover 17 are fixed to the shell 6 through the groove on the shell 6 by the retaining ring 11 with the holes, this makes it easy for the ultra-high pressure gas heat exchanger to have the characteristics of high working pressure and good sealing performance. All the electrical components mentioned above are existing technologies and will not be described in detail here.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An ultra-high pressure gas heat exchanger, comprising an inlet pipe (1), a shell (6), and high pressure heat exchange tubes (7) arranged symmetrically inside the shell (6). Its features are, Also includes: The left end cover (17) and the right end cover (9) are respectively provided on the left and right sides of the housing (6), and a first connecting structure for the air inlet pipe (1) and the high-pressure heat exchange pipe (7) is provided on the inner side of the left end of the housing (6), and a second connecting structure for the high-pressure heat exchange pipe (7) and the exhaust pipe (13) is provided on the inner side of the right end of the housing (6). The outer shell (6) is symmetrically nested with bolted brackets (5), and the inner sides of both the left and right ends of the shell (6) are provided with sealing structures for the left end cover (17) and the right end cover (9).

2. The ultra-high pressure gas heat exchanger according to claim 1, characterized in that: The left end cover (17) and the right end cover (9) are respectively connected by an air inlet pipe (1) and an exhaust pipe (13). A water outlet pipe (2) is fixedly connected to the left end cover (17) above the air inlet pipe (1), and a water inlet pipe (15) is fixedly connected to the right end cover (9) below the exhaust pipe (13).

3. The ultra-high pressure gas heat exchanger according to claim 1, characterized in that: Both the intake pipe (1) and the exhaust pipe (13) are equipped with ferrule connectors (16), and the ferrule connectors (16) are fixed in the right end cover (9) and the left end cover (17) respectively.

4. The ultra-high pressure gas heat exchanger according to claim 1, characterized in that: The first connecting structure includes a high-pressure air intake block (3), a high-pressure air intake branch pipe (4), and a connector (8). The high-pressure air intake block (3) is threaded to the outside of the right end of the air intake pipe (1). The outer end of the high-pressure air intake block (3) is fixedly connected to the centrally symmetrically arranged high-pressure air intake branch pipe (4). The high-pressure air intake branch pipe (4) and the high-pressure heat exchange pipe (7) are fixedly connected by a connector (8).

5. The ultra-high pressure gas heat exchanger according to claim 1, characterized in that: The second connection structure includes a connector (8), a high-pressure gas outlet block (12), and a high-pressure gas outlet branch pipe (14). The high-pressure gas outlet block (12) is located on the inner side of the right end of the shell (6). The outer end of the high-pressure gas outlet block (12) is fixedly connected to the centrally symmetrically arranged high-pressure gas outlet branch pipe (14). The high-pressure heat exchange tube (7) and the high-pressure gas outlet branch pipe (14) are fixedly connected by a connector (8).

6. The ultra-high pressure gas heat exchanger according to claim 1, characterized in that: The sealing structure includes a sealing ring (10) and a retaining ring (11) for holes. The sealing ring (10) and the retaining ring (11) for holes are symmetrically fixed on the left and right sides of the housing (6). The retaining ring (11) for holes is located outside the sealing ring (10), and the sealing ring (10) is attached to the outer side of the right end cover (9) and the left end cover (17).

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