Cryogenic cooling components for high-pressure CO2 piping systems

Abstract

The application discloses a high-pressure CO2 pipeline system low-temperature cooling assembly and relates to the technical field of synchronous cooling devices.The low-temperature cooling assembly comprises a universal joint and a medium pipeline, the end of the universal joint is provided with a low-temperature cooling mechanism, the low-temperature cooling mechanism comprises a jacket main body, a jacket fixing assembly is arranged on the outer wall of the jacket main body, the jacket fixing assemblies are arranged in four groups, the two jacket main bodies are detachably connected through the jacket fixing assemblies, helical fins are welded in the inner cavities of the jacket fixing assemblies, a branch connecting pipe No.2 is fixedly connected to the bottom of the jacket main body, and a recovery valve is fixedly connected to the middle of the branch connecting pipe No.2. Through the design of the low-temperature cooling mechanism, the thermodynamic characteristics of CO2 can be utilized to realize the functions of pressure boosting (temperature rising) and cooling (pressure releasing), the use of energy consumption equipment such as pumps is reduced, the erection cost of the structure is lowered, the structure is simple, and the application is convenient to popularize and use.

Description

Technical Field

[0001] This invention relates to the field of synchronous cooling device technology, and more specifically to a cryogenic cooling component for a high-pressure CO2 pipeline system. Background Technology

[0002] Carbon dioxide is a carbon oxide with the chemical formula CO2 and a molecular weight of 44.0095. At room temperature and pressure, it is a colorless and odorless gas, or colorless and odorless, although its aqueous solution has a slightly acidic taste. It is a common greenhouse gas and a component of air (comprising 0.03%-0.04% of the total atmospheric volume). Physically, carbon dioxide has a melting point of -56.6℃ (527 kPa), a boiling point of -78.5℃, and a density greater than air (under standard conditions). It is soluble in water. Chemically, carbon dioxide is inert, has high thermal stability (only 1.8% decomposes at 2000℃), is non-flammable, and generally does not support combustion. It is an acidic oxide and exhibits the general properties of acidic oxides. Because it reacts with water to form carbonic acid, it is the anhydride of carbonic acid. Generally, high-pressure systems require a pressurization pump to increase the pressure of the medium. During pressurization, CO2 needs to be kept in a liquid state, often requiring cooling through a cold trap, which is typically a cryogenic circulating pump.

[0003] After selecting a cryogenic circulating pump, costs, maintenance, and coolant replacement (upkeep) must be considered, which greatly increases the operating cost and needs to be improved. Summary of the Invention

[0004] This invention provides a cryogenic cooling component for a high-pressure CO2 pipeline system to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A cryogenic cooling component for a high-pressure CO2 pipeline system includes a universal connector and a medium pipeline, wherein the end of the universal connector is provided with a cryogenic cooling mechanism.

[0007] The cryogenic cooling mechanism includes a jacket body, and a jacket fixing assembly is provided on the outer wall of the jacket body. There are four sets of jacket fixing assemblies. Two jacket bodies are detachably connected through the jacket fixing assemblies. Spiral fins are welded in the inner cavity of the jacket fixing assembly. A branch connecting pipe is fixedly connected to the bottom of the jacket body. A recovery valve is fixedly connected to the middle of the branch connecting pipe. A recovery mechanism is provided at the end of the branch connecting pipe away from the jacket body.

[0008] The recycling mechanism includes a filtration unit and an emptying recycling unit.

[0009] The emptying and recycling unit includes a movable disc, a manual valve pipe is fixedly connected to the bottom of the movable disc, a recycling cylinder is fixedly connected to the bottom of the manual valve pipe, a sealing sliding plate is slidably connected to the inner wall of the recycling cylinder, and a connecting nozzle is fixedly connected to the bottom of the recycling cylinder.

[0010] A further improvement of the technical solution of the present invention is that: the low-temperature cooling mechanism further includes a straight connecting pipe, the straight connecting pipe is fixedly connected to the end of the universal connector, a valve is fixedly connected to the middle of the straight connecting pipe, a buffer tank is fixedly connected to the end of the straight connecting pipe away from the universal connector, and a temperature controller is provided on the outer surface of the buffer tank.

[0011] A further improvement of the technical solution of the present invention is that: a branch connecting pipe is fixedly connected to the output end of the buffer tank, a heating belt is fixedly sleeved on the outer wall of the buffer tank, a valve is fixedly connected to the middle of the branch connecting pipe, and the end of the branch connecting pipe away from the buffer tank is fixedly connected to the top of the jacket body.

[0012] A further improvement of the technical solution of the present invention is that the outer wall of the medium pipeline is movably connected to the inner wall of the jacket body, and the specific structure of the jacket body can be configured as a two-sided jacket type or an independent jacket type.

[0013] A further improvement of the technical solution of the present invention is that: the filtration unit includes a hollow frame, a support bracket is welded to the bottom of the hollow frame, the movable disc is detachably connected to the bottom of the hollow frame, a movable cover is movably connected to the top of the hollow frame, an internally threaded connecting pipe is fixedly connected to the center of the top of the movable cover, and the end of the branch connecting pipe that is away from the jacket body is threaded to the top of the internally threaded connecting pipe.

[0014] A further improvement of the technical solution of the present invention is that: a first welding block is welded to the outer wall of the hollow frame and the movable cover; an electric telescopic rod is fixedly installed on the top of the first welding block located at the bottom; the moving end of the electric telescopic rod is fixedly connected to the bottom of the first welding block located at the top; a second welding block is welded to the outer wall of the hollow frame and the movable cover; a smooth rod is welded to the top of the second welding block located at the bottom; and the outer wall of the smooth rod is slidably connected to the inner wall of the second welding block located at the top.

[0015] A further improvement of the technical solution of the present invention is that: a sealing rubber ring is fixedly connected to the outer wall of the movable cover, the outer wall of the sealing rubber ring is movably connected to the inner wall of the hollow frame, and a composite fiber filter screen is fixedly installed on the inner wall of the hollow frame.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0017] 1. This invention provides a low-temperature cooling component for a high-pressure CO2 pipeline system. Through the design of the low-temperature cooling mechanism, the thermodynamic properties of CO2 itself can be utilized to achieve the functions of pressurization (heating) and cooling (pressure relief), reducing the use of energy-consuming equipment such as pumps, reducing the construction cost of this structure, and making the structure simple and easy to promote and use.

[0018] 2. This invention provides a low-temperature cooling component for a high-pressure CO2 pipeline system. Through the design of a universal connector, a straight connecting pipe and a valve, it can use the CO2 in the external high-pressure system itself or the gas cylinder for venting and cooling, thereby achieving self-cooling, further reducing cost and complexity, and facilitating the construction of this structure.

[0019] 3. This invention provides a low-temperature cooling component for a high-pressure CO2 pipeline system. For cooling large-diameter pressure vessels, the jacket body can be a two-sided jacket type. For small-diameter pipes, the jacket body can be an independent jacket cooling system, which is convenient for users, increases the convenience of the structure, and improves the erection efficiency.

[0020] 4. The present invention provides a low-temperature cooling component for a high-pressure CO2 pipeline system. With the cooperation of a branch connecting pipe and a recovery valve, the used CO2 can be discharged for easy recycling by the user. Furthermore, with the cooperation of a manual valve pipe, a recovery cylinder and a sealing sliding plate, the CO2 can be discharged and recovered. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the jacket body with two side-mounted jackets of the present invention;

[0023] Figure 3 This is a schematic diagram of the present invention;

[0024] Figure 4 This is a schematic diagram illustrating an embodiment of the independent jacket-type main body of the present invention;

[0025] Figure 5 This is a schematic diagram of the recycling mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the separation structure of the hollow frame and the movable cover of the present invention;

[0027] Figure 7 This is a schematic diagram of the bottom structure of the hollow frame of the present invention.

[0028] In the diagram: 1. General connector; 11. Medium pipeline;

[0029] 2. Straight-through connecting pipe; 3. Valve 1; 4. Buffer tank; 5. Thermostat; 6. Branch connecting pipe fitting 1; 7. Valve 2; 8. Jacket body; 81. Jacket fixing assembly; 82. Spiral fins; 83. Branch connecting pipe fitting 2; 84. Recovery valve;

[0030] 9. Recycling mechanism; 91. Hollow frame; 911. Movable cover; 912. First welded block; 913. Electric telescopic rod; 914. Second welded block; 915. Smooth rod; 916. Internally threaded connecting pipe; 917. Sealing rubber ring; 918. Composite fiber filter screen; 92. Supporting legs; 93. Movable disc; 931. Manual valve pipe; 932. Recycling cylinder; 933. Sealing sliding plate; 934. Connecting nozzle. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to embodiments:

[0032] Example 1

[0033] like Figure 1-7 As shown, this invention provides a cryogenic cooling component for a high-pressure CO2 pipeline system, including a universal connector 1 and a medium pipeline 11. A cryogenic cooling mechanism is provided at the end of the universal connector 1. The cryogenic cooling mechanism includes a jacket body 8, and a jacket fixing component 81 is provided on the outer wall of the jacket body 8. Four sets of jacket fixing components 81 are provided. Two jacket bodies 8 are detachably connected via the jacket fixing components 81. Spiral fins 82 are welded into the inner cavity of the jacket fixing component 81. A branch connecting pipe fitting 83 is fixedly connected to the bottom of the jacket body 8. A recovery valve 84 is fixedly connected to the middle of the branch connecting pipe fitting 83. A recovery mechanism 9 is provided at the end of the branch connecting pipe fitting 83 away from the jacket body 8. The recovery mechanism 9 includes a filtration unit and an emptying recovery unit. For cooling large-diameter pressure vessels, the jacket body 8 can be a two-sided jacket type. For small-diameter pipelines, the jacket body 8 can use independent jacket cooling, which is convenient for users. The two-sided jacket body 8 can be connected using a magnetic or snap-fit ​​method.

[0034] Example 2

[0035] like Figure 1-7As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the low-temperature cooling mechanism further includes a straight connecting pipe 2, which is fixedly connected to the end of the universal connector 1. A valve 3 is fixedly connected to the middle of the straight connecting pipe 2. A buffer tank 4 is fixedly connected to the end of the straight connecting pipe 2 away from the universal connector 1. A thermostat 5 is provided on the outer surface of the buffer tank 4. A branch connecting pipe fitting 6 is fixedly connected to the output end of the buffer tank 4. A heating belt is fixedly sleeved on the outer wall of the buffer tank 4. A valve 7 is fixedly connected to the middle of the branch connecting pipe fitting 6. The end of the branch connecting pipe fitting 6 away from the buffer tank 4 is fixedly connected to the top of the jacket body 8. The outer wall of the medium pipeline 11 is movably connected to the inner wall of the jacket body 8. The specific structure of 8 can be set as a double-jacketed type or an independent jacketed type. The CO2 gas source comes from a gas cylinder or a high-pressure system. The gas source is connected to the universal connector 1 and connected to this component. The high-pressure CO2 first flows into the buffer tank 4, and then is depressurized and released from the buffer tank 4 into the jacket body 8. The CO2 depressurization and expansion absorbs a large amount of heat to generate a high-pressure dry ice mixed with CO2 gas jet. Under the turbulence of the spiral fins 82, the cooling heat exchange is enhanced, so that the pressure vessel or other equipment and pipelines that need to be cooled are quickly cooled and liquefied. The CO2 is quickly emptied or recovered through the branch connection fitting 83 and the recovery valve 84. The heating belt set on the buffer tank 4 can heat and pressurize the CO2 in the buffer tank 4. The CO2 is released under high temperature and high pressure thermodynamic conditions, which can enhance the cooling effect.

[0036] Example 3

[0037] like Figure 1-7As shown, based on Embodiment 2, the present invention provides a technical solution: Preferably, the filtration unit includes a hollow frame 91, a support bracket 92 welded to the bottom of the hollow frame 91, a movable disc 93 detachably connected to the bottom of the hollow frame 91, a movable cover 911 movably connected to the top of the hollow frame 91, an internally threaded connecting pipe 916 fixedly connected to the center of the top of the movable cover 911, and a branch connecting pipe 83 with one end threadedly connected to the top of the internally threaded connecting pipe 916 away from the jacket body 8. The hollow frame 91 and the movable cover... A first welding block 912 is welded to the outer wall of the hollow frame 91 and the movable cover 911. An electric telescopic rod 913 is fixedly installed on the top of the first welding block 912 located at the bottom. The moving end of the electric telescopic rod 913 is fixedly connected to the bottom of the first welding block 912 located at the top. A second welding block 914 is welded to the outer wall of the hollow frame 91 and the movable cover 911. A smooth rod 915 is welded to the top of the second welding block 914 located at the bottom. The outer wall of the smooth rod 915 is slidably connected to the inner wall of the second welding block 914 located at the top. The movable cover 911... A sealing rubber ring 917 is fixedly connected to the outer wall of the hollow frame 91. The outer wall of the sealing rubber ring 917 is movably connected to the inner wall of the hollow frame 91. A composite fiber filter 918 is fixedly installed on the inner wall of the hollow frame 91. The design of the internal threaded connecting pipe 916 facilitates the user's connection to the end of the branch connecting pipe fitting 83. The branch connecting pipe fitting 83 is pre-connected to the internal threaded connecting pipe 916. The CO2 discharged from the branch connecting pipe fitting 83 will flow through the inner cavity of the hollow frame 91. Through the design of the composite fiber filter 918, the CO2 is filtered. The CO2 filtration process avoids the problem of impurities inside the CO2 affecting its performance. The user can control the electric telescopic rod 913 to extend it. The movable cover 911 is moved upward by the transmission of the first welding block 912, which facilitates the cleaning of the composite fiber filter screen 918 by the staff. The design of the sealing rubber ring 917 can seal the connection between the movable cover 911 and the hollow frame 91. The design of the second welding block 914 and the smooth rod 915 improves the stability of the movable cover 911 when it moves vertically.

[0038] Example 4

[0039] like Figure 1-7As shown, based on Embodiment 3, the present invention provides a technical solution: Preferably, the venting and recovery unit includes a movable disc 93, a manual valve pipe 931 fixedly connected to the bottom of the movable disc 93, a recovery cylinder 932 fixedly connected to the bottom of the manual valve pipe 931, a sealing sliding plate 933 slidably connected to the inner wall of the recovery cylinder 932, and a connecting nozzle 934 fixedly connected to the bottom of the recovery cylinder 932. The manual valve pipe 931 is pre-opened, and then gas is supplied into the recovery cylinder 932 from the connecting nozzle 934 using an external inflation device. The gas will push the sealing sliding plate 933 to slide in the inner cavity of the recovery cylinder 932, thereby venting the original gas in the inner cavity of the recovery cylinder 932. Then, the user can connect the movable disc 93 to the bottom of the hollow frame 91. When the recovery cylinder 932 recovers CO2, the sealing sliding plate 933 will slowly move down, thus realizing the function of venting and recovering air.

[0040] The working principle of the cryogenic cooling component of this high-pressure CO2 pipeline system will be explained in detail below.

[0041] like Figure 1-7 As shown, the CO2 gas source comes from a gas cylinder or high-pressure system. The gas source is connected to the universal connector 1 and then into this component. The high-pressure CO2 first flows into the buffer tank 4, and then is depressurized and released from the buffer tank 4 into the jacket body 8. The CO2 expands under depressurization and absorbs a large amount of heat to generate a high-pressure dry ice mixed with CO2 gas jet. Under the turbulence of the spiral fins 82, the cooling and heat exchange are enhanced, so that the pressure vessel or other equipment and pipelines that need to be cooled can be quickly cooled and liquefied. The CO2 is quickly vented or recovered through the branch connection fitting 83 and the recovery valve 84.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A cryogenic cooling assembly for a high-pressure CO2 pipeline system, comprising a universal connector (1) and a medium pipeline (11), characterized in that: The end of the universal connector (1) is provided with a low-temperature cooling mechanism; The low-temperature cooling mechanism includes a jacket body (8), and a jacket fixing assembly (81) is provided on the outer wall of the jacket body (8). The jacket fixing assembly (81) is configured in four groups. The two jacket bodies (8) are detachably connected by the jacket fixing assembly (81). Spiral fins (82) are welded in the inner cavity of the jacket fixing assembly (81). A branch connecting pipe fitting two (83) is fixedly connected to the bottom of the jacket body (8). A recovery valve (84) is fixedly connected to the middle of the branch connecting pipe fitting two (83). A recovery mechanism (9) is provided at the end of the branch connecting pipe fitting two (83) away from the jacket body (8). The recycling mechanism (9) includes a filtration unit and an emptying recycling unit; The emptying and recycling unit includes a movable disc (93), a manual valve pipe (931) is fixedly connected to the bottom of the movable disc (93), a recycling cylinder (932) is fixedly connected to the bottom of the manual valve pipe (931), a sealing sliding plate (933) is slidably connected to the inner wall of the recycling cylinder (932), and a connecting nozzle (934) is fixedly connected to the bottom of the recycling cylinder (932). The low-temperature cooling mechanism also includes a straight connecting pipe (2), which is fixedly connected to the end of the universal connector (1). A valve (3) is fixedly connected to the middle of the straight connecting pipe (2). A buffer tank (4) is fixedly connected to the end of the straight connecting pipe (2) away from the universal connector (1). A temperature controller (5) is provided on the outer surface of the buffer tank (4). The output end of the buffer tank (4) is fixedly connected to a branch connection pipe fitting (6), a heating belt is fixedly sleeved on the outer wall of the buffer tank (4), a valve (7) is fixedly connected to the middle of the branch connection pipe fitting (6), and the end of the branch connection pipe fitting (6) away from the buffer tank (4) is fixedly connected to the top of the jacket body (8).

2. The cryogenic cooling assembly for a high-pressure CO2 pipeline system according to claim 1, characterized in that: The outer wall of the medium pipeline (11) is movably connected to the inner wall of the jacket body (8), and the specific structure of the jacket body (8) can be set as a double-sided jacket or an independent jacket.

3. The cryogenic cooling assembly for a high-pressure CO2 pipeline system according to claim 1, characterized in that: The filtration unit includes a hollow frame (91), with a support bracket (92) welded to the bottom of the hollow frame (91). The movable disc (93) is detachably connected to the bottom of the hollow frame (91), and a movable cover (911) is movably connected to the top of the hollow frame (91). An internally threaded connecting pipe (916) is fixedly connected to the center of the top of the movable cover (911). The end of the branch connecting pipe (83) away from the jacket body (8) is threaded to the top of the internally threaded connecting pipe (916).

4. The cryogenic cooling assembly for a high-pressure CO2 pipeline system according to claim 3, characterized in that: The hollow frame (91) and the movable cover (911) are each welded with a first welding block (912). An electric telescopic rod (913) is fixedly installed on the top of the first welding block (912) located at the bottom. The moving end of the electric telescopic rod (913) is fixedly connected to the bottom of the first welding block (912) located at the top. The hollow frame (91) and the movable cover (911) are each welded with a second welding block (914). A smooth rod (915) is welded to the top of the second welding block (914) located at the bottom. The outer wall of the smooth rod (915) is slidably connected to the inner wall of the second welding block (914) located at the top.

5. The cryogenic cooling assembly for a high-pressure CO2 pipeline system according to claim 4, characterized in that: A sealing rubber ring (917) is fixedly connected to the outer wall of the movable cover (911). The outer wall of the sealing rubber ring (917) is movably connected to the inner wall of the hollow frame (91). A composite fiber filter screen (918) is fixedly installed on the inner wall of the hollow frame (91).

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