Cryogenic oxygen production precooling device

Abstract

The utility model discloses a cryogenic oxygen production precooling device which comprises a tower body, a precooling assembly is arranged in the tower body, the precooling assembly comprises a connecting cylinder, a snakelike pipeline is arranged in the connecting cylinder, and one end of the snakelike pipeline is communicated with an air inlet pipe; and the other end of the snakelike pipeline is communicated with the interior of the tower body outside the connecting cylinder. A first water inlet pipe is mounted in a third mounting hole formed in the side wall of the tower body, the first water inlet pipe extends into the tower body and is fixedly connected with a spray head, a filler layer is arranged below the spray head, and a fiber coalescer is arranged above the spray head. When the cryogenic oxygen production precooling device is used, a water source can be filled in the whole connecting cylinder to perform heat exchange work on high-temperature gas and the snakelike pipeline, and the high-temperature gas is efficiently cooled, so that the high-temperature gas reaches a preset temperature; and then the water source is discharged to the outside through the second drainage pipe for recycling, so that energy can be effectively saved, consumption can be effectively reduced, and waste of water resources is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of cryogenic air separation, and relates to air-cooled towers, specifically to a cryogenic oxygen precooling device. Background Technology

[0002] Precooling air before cryogenic separation brings it closer to its liquefaction point, reducing the cooling capacity and energy consumption required for subsequent cryogenic separation. The precooling system is an indispensable part of the air separation system. After filtration and compression, the air temperature is around 100 degrees Celsius and must be cooled by a precooling system (usually including an air-cooled tower and a water-cooled tower). The air-cooled tower is an essential part of the precooling system. Only after the compressed air is cooled by the air-cooled tower can it enter the downstream purification system for final distillation separation.

[0003] Air-cooled towers rely on water evaporation for heat dissipation. During operation, a large amount of water is lost through evaporation, especially in dry and high-temperature environments, where the evaporation rate is even higher. This requires frequent water replenishment, resulting in significant water waste and increased water treatment costs. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, this utility model proposes a cryogenic oxygen precooling device to solve the technical problem that the air-cooled tower in the existing technology needs to be frequently replenished with water.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A cryogenic oxygen precooling device includes a tower body, wherein a precooling component is disposed within the tower body.

[0007] The precooling assembly includes a closed connecting cylinder with a first mounting hole at the bottom center and a second mounting hole at the top center.

[0008] The first mounting hole is fitted with one end of a serpentine pipe, which is connected to one end of an air inlet pipe. One end of the air inlet pipe is mounted at the bottom of the connecting cylinder via a connecting bracket, and the other end of the air inlet pipe extends out of the tower body.

[0009] The other end of the serpentine pipe is fitted into the second mounting hole, and the other end of the serpentine pipe is connected to the tower body outside the connecting cylinder; the top of the connecting cylinder, the exhaust frame, the support rod and the flow guide are connected in sequence from bottom to top.

[0010] A third mounting hole is provided at the upper middle position of the side wall of the tower body. A first water inlet pipe is installed in the third mounting hole. One end of the first water inlet pipe extends out of the tower body, and the other end extends into the tower body and is fixedly connected to the nozzle. A packing layer is provided below the nozzle and is fixed on the inner wall of the tower body. The packing layer is located between the guide frame and the nozzle.

[0011] A fourth mounting hole is provided at the lower middle position of the side wall of the tower body, and the fourth mounting hole is used for the other end of the air inlet pipe to extend out of the tower body.

[0012] A fiber coalescer is also provided above the nozzle, and the fiber coalescer is also fixed on the inner wall of the tower.

[0013] This utility model also has the following technical features:

[0014] A first connecting hole is opened at the lower middle position of the side wall of the connecting cylinder, and a second connecting hole is opened at the lower middle position of the side wall of the tower body. A second water inlet pipe is installed in the first connecting hole and the second connecting hole. One end of the second water inlet pipe is connected to the inner cavity of the connecting cylinder, and the other end of the second water inlet pipe is connected to the transmission component.

[0015] The transmission component includes a water storage tank with a water inlet at the top and a water pump at the top. One side of the water pump is connected to one end of a water pumping pipe, and the other end of the water pump extends into the water storage tank. The other side of the water pump is connected to one end of a first drain pipe, and the other end of the first drain pipe is connected to the other end of a second water inlet pipe.

[0016] A third connecting hole is opened at the upper middle position of the side wall of the connecting cylinder, and a fourth connecting hole is opened at the upper middle position of the side wall of the tower body. A second drain pipe is installed in the third connecting hole and the fourth connecting hole. One end of the second drain pipe is connected to the inner cavity of the connecting cylinder, and the other end of the second drain pipe extends out of the tower body.

[0017] The first and third connecting holes are symmetrically distributed with their top and bottom offsets, and the second and fourth connecting holes are symmetrically distributed with their top and bottom offsets. The first and second connecting holes are arranged on the same horizontal plane, and the third and fourth connecting holes are arranged on the same horizontal plane.

[0018] The third and fourth mounting holes are symmetrically distributed with their positions offset vertically.

[0019] The connecting cylinder is fixedly connected to the inner wall of the tower body via a support frame.

[0020] The support rods are vertically installed on the top of the exhaust frame, and are symmetrically and evenly distributed along the circumference, with a total of four support rods.

[0021] The tower body has an air outlet pipe fixedly connected to the center of the top and a water outlet pipe fixedly connected to the center of the bottom. Both the air outlet pipe and the water outlet pipe are connected to the inner cavity of the tower body.

[0022] The air outlet pipe is coaxially arranged with the second mounting hole, and the water outlet pipe is coaxially arranged with the first mounting hole.

[0023] The tower body is fixed by a tower body mounting frame.

[0024] The third mounting hole is located above the fourth connecting hole.

[0025] The fourth mounting hole is located below the second connecting hole.

[0026] Compared with the prior art, the present invention has the following beneficial technical effects:

[0027] (I) The cryogenic oxygen precooling device proposed in this utility model allows water to fill the entire interior of the connecting cylinder to exchange heat between the high-temperature gas and the serpentine pipe, thereby efficiently cooling the high-temperature gas to a predetermined temperature. Then, the water is discharged to the outside through the second drain pipe for recycling, which can effectively save energy and reduce water waste.

[0028] (II) In the cryogenic oxygen precooling device proposed in this utility model, when the gas is being cooled, the upward-moving gas will pass through the fiber coalescer. The fiber coalescer can quickly coalesce and separate the tiny droplets, thus separating the moisture in the gas. Finally, the gas can be discharged to the outside of the tower through the gas outlet pipe, thereby effectively improving the separation effect of gas and moisture and improving the practicality of the device. Attached Figure Description

[0029] Figure 1 A three-dimensional structural diagram of a cryogenic oxygen precooling device.

[0030] Figure 2 This is a schematic diagram of the internal structure of a cryogenic oxygen precooling device.

[0031] Figure 3 This is a schematic diagram of the internal structure of the precooling component.

[0032] Figure 4 This is a schematic diagram of the structure at the fiber coalescer.

[0033] Figure 5 This is a schematic diagram of the internal structure of the transmission component.

[0034] The meanings of the labels in the diagram are as follows: 1-Tower body, 2-Precooling component, 3-First water inlet pipe, 4-Nozzle, 5-Packing layer, 6-Fiber coalescer, 7-Transfer component, 8-Air outlet pipe, 9-Water outlet pipe, 10-Tower body mounting bracket.

[0035] 101 - Third mounting hole, 102 - Second connecting hole, 103 - Fourth connecting hole, 104 - Fourth mounting hole.

[0036] 201-Connecting cylinder, 202-First mounting hole, 203-Second mounting hole, 204-Serpentine pipe, 205-Connecting frame, 206-Inlet pipe, 207-Exhaust frame, 208-Support rod, 209-Flow guide frame, 210-First connecting hole, 211-Second water inlet pipe, 212-Third connecting hole, 213-Second drain pipe, 214-Supporting frame.

[0037] 701-Water storage tank, 702-Water inlet, 703-Water pump, 704-Water suction pipe, 705-First drain pipe.

[0038] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, all equipment and components in this utility model are based on equipment and components known in the prior art.

[0040] Following the above technical solution, the following are specific embodiments of this utility model. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.

[0041] Example:

[0042] This embodiment provides a cryogenic oxygen precooling device, including a tower body 1, as shown below. Figure 2 As shown, a precooling component 2 is installed inside the tower body 1.

[0043] like Figure 2 , Figure 3 and Figure 4 As shown, the precooling component 2 includes a closed connecting cylinder 201, with a first mounting hole 202 at the bottom center of the connecting cylinder 201 and a second mounting hole 203 at the top center of the connecting cylinder 201.

[0044] like Figure 2 and Figure 3As shown, the first mounting hole 202 is fitted with one end of the serpentine pipe 204, one end of the serpentine pipe 204 is connected to one end of the air inlet pipe 206, one end of the air inlet pipe 206 is installed at the bottom of the connecting cylinder 201 through the connecting bracket 205, and the other end of the air inlet pipe 206 extends out of the tower body 1.

[0045] like Figure 2 and Figure 4 As shown, the other end of the serpentine pipe 204 is fitted into the second mounting hole 203, and the other end of the serpentine pipe 204 is connected to the inside of the tower body 1 outside the connecting cylinder 201; the top of the connecting cylinder 201, the exhaust frame 207, the support rod 208 and the flow guide frame 209 are connected sequentially from bottom to top.

[0046] like Figure 2 and Figure 4 As shown, a third mounting hole 101 is provided in the upper middle position of the side wall of the tower body 1. A first water inlet pipe 3 is installed in the third mounting hole 101. One end of the first water inlet pipe 3 extends out of the tower body 1, and the other end of the first water inlet pipe 3 extends into the tower body 1 and is fixedly connected to the nozzle 4. A packing layer 5 is provided below the nozzle 4. The packing layer 5 is fixed on the inner wall of the tower body 1 and is located between the guide frame 209 and the nozzle 4.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, a fourth mounting hole 104 is provided at the lower middle position of the side wall of the tower body 1. The fourth mounting hole 104 is used for the other end of the air inlet pipe 206 to extend out of the tower body 1.

[0048] like Figure 2 and Figure 4 As shown, a fiber coalescer 6 is also provided above the nozzle 4, and the fiber coalescer 6 is also fixed on the inner wall of the tower body 1.

[0049] As a preferred embodiment of this invention, such as Figure 2 and Figure 3 As shown, a first connecting hole 210 is opened at the lower middle position of the side wall of the connecting cylinder 201, and a second connecting hole 102 is opened at the lower middle position of the side wall of the tower body 1. A second water inlet pipe 211 is installed in the first connecting hole 210 and the second connecting hole 102. One end of the second water inlet pipe 211 is connected to the inner cavity of the connecting cylinder 201, and the other end of the second water inlet pipe 211 is connected to the transmission component 7.

[0050] As a preferred embodiment of this invention, such as Figure 1 , Figure 2 and Figure 5As shown, the transmission component 7 includes a water storage tank 701, with a water inlet 702 at the top of the water storage tank 701. A water pump 703 is installed at the top of the water storage tank 701. One side of the water pump 703 is connected to one end of a water pumping pipe 704, and the other end of the water pumping pipe 704 extends into the water storage tank 701. The other side of the water pump 703 is connected to one end of a first drain pipe 705, and the other end of the first drain pipe 704 is connected to the other end of a second water inlet pipe 211.

[0051] As a preferred embodiment of this invention, such as Figure 2 and Figure 4 As shown, a third connecting hole 212 is opened at the upper middle position of the side wall of the connecting cylinder 201, and a fourth connecting hole 103 is opened at the upper middle position of the side wall of the tower body 1. A second drain pipe 213 is installed in the third connecting hole 212 and the fourth connecting hole 103. One end of the second drain pipe 213 is connected to the inner cavity of the connecting cylinder 201, and the other end of the second drain pipe 213 extends out of the tower body 1.

[0052] As a preferred embodiment of this invention, such as Figure 2 As shown, the first connecting hole 210 and the third connecting hole 212 are symmetrically distributed with their top and bottom staggered, and the second connecting hole 102 and the fourth connecting hole 103 are symmetrically distributed with their top and bottom staggered. The first connecting hole 210 and the second connecting hole 102 are arranged on the same horizontal plane, and the third connecting hole 212 and the fourth connecting hole 103 are arranged on the same horizontal plane.

[0053] As a preferred embodiment of this invention, such as Figure 2 As shown, the third mounting hole 101 and the fourth mounting hole 104 are symmetrically distributed with their heights offset.

[0054] As a preferred embodiment of this invention, such as Figure 2 and Figure 3 As shown, the connecting cylinder 201 is fixedly connected to the inner wall of the tower body 1 through the support frame 214.

[0055] As a preferred embodiment of this invention, such as Figure 4 As shown, the support rods 208 are vertically installed on the top of the exhaust frame 207. The support rods 208 are symmetrically and evenly distributed along the circumference, and there are four support rods 208.

[0056] As a preferred embodiment of this invention, such as Figure 1 and Figure 2 As shown, an air outlet pipe 8 is fixedly connected to the center of the top of the tower body 1, and a water outlet pipe 9 is fixedly connected to the center of the bottom of the tower body 1. Both the air outlet pipe 8 and the water outlet pipe 9 are connected to the inner cavity of the tower body 1.

[0057] As a preferred embodiment of this invention, such as Figures 2 to 4As shown, the air outlet pipe 8 is coaxially arranged with the second mounting hole 203, and the water outlet pipe 9 is coaxially arranged with the first mounting hole 202.

[0058] As a preferred embodiment of this invention, such as Figure 1 and Figure 2 As shown, the tower body 1 is fixed by the tower body mounting bracket 10.

[0059] As a preferred embodiment of this invention, such as Figure 2 and Figure 4 As shown, the third mounting hole 101 is located above the fourth connecting hole 103.

[0060] As a preferred embodiment of this invention, such as Figure 2 and Figure 3 As shown, the fourth mounting hole 104 is located below the second connecting hole 102.

[0061] In this preferred embodiment, the connection between the air inlet pipe 206 and the connecting frame 205 and the serpentine pipe 204 can effectively prevent water from entering the interior of the air inlet pipe 206 and improve the safety of the cryogenic oxygen precooling device.

[0062] In this embodiment, the preferred tower mounting bracket 10 can improve the practicality of the cryogenic oxygen precooling device.

[0063] The working process of the cryogenic oxygen precooling device in this embodiment is as follows:

[0064] When using the device, the operator first transmits high-temperature gas into the serpentine pipe 204 through the air inlet pipe 206 and the connecting frame 205. At this time, the water pump 703 is activated, allowing it to transfer water from the water storage tank 701 to the connecting cylinder 201 through the water suction pipe 704, the first drain pipe 705, and the second water inlet pipe 211. This allows the water to fill the entire interior of the connecting cylinder 201 and exchange heat with the serpentine pipe 204, cooling the high-temperature gas until it reaches a predetermined temperature. The water is then discharged to the outside through the second drain pipe 213 for recycling, and the cooling process continues. The gas will then be discharged to the outside through the exhaust rack 207 and the guide rack 209. Next, the gas will come into contact with the packing layer 5 for secondary heat exchange, and then continue to move upward. At the same time, cooling water can be sprayed into the inside of the packing layer 5 and the outside of the connecting cylinder 201 through the first water inlet pipe 3 and the nozzle 4 for cooling. Finally, the gas will be discharged to the outside through the water outlet pipe 9 for recycling. The gas that continues to move upward will pass through the fiber coalescer 6. The fiber coalescer 6 can quickly coalesce and separate the tiny droplets, separating the moisture in the gas. Finally, the gas can be discharged to the outside of the tower body 1 through the gas outlet pipe 8 for use.

Claims

1. A cryogenic oxygen precooling device, comprising a tower body (1), characterized in that, The tower body (1) is equipped with a precooling component (2); The precooling component (2) includes a closed connecting cylinder (201), with a first mounting hole (202) at the bottom center of the connecting cylinder (201) and a second mounting hole (203) at the top center of the connecting cylinder (201). The first mounting hole (202) is fitted with one end of the serpentine pipe (204), one end of the serpentine pipe (204) is connected to one end of the air inlet pipe (206), one end of the air inlet pipe (206) is installed at the bottom of the connecting cylinder (201) through the connecting bracket (205), and the other end of the air inlet pipe (206) extends out of the tower body (1); The other end of the serpentine pipe (204) is fitted into the second mounting hole (203), and the other end of the serpentine pipe (204) is connected to the inside of the tower body (1) outside the connecting cylinder (201); the top of the connecting cylinder (201), the exhaust frame (207), the support rod (208) and the flow guide frame (209) are connected sequentially from bottom to top; A third mounting hole (101) is provided in the upper middle position of the side wall of the tower body (1). A first water inlet pipe (3) is installed in the third mounting hole (101). One end of the first water inlet pipe (3) extends out of the tower body (1), and the other end of the first water inlet pipe (3) extends into the tower body (1) and is fixedly connected to the nozzle (4). A packing layer (5) is provided below the nozzle (4). The packing layer (5) is fixed on the inner wall of the tower body (1). The packing layer (5) is located between the guide frame (209) and the nozzle (4). A fourth mounting hole (104) is provided at the lower middle position of the side wall of the tower body (1). The fourth mounting hole (104) is used for the other end of the air inlet pipe (206) to extend out of the tower body (1). A fiber coalescer (6) is also provided above the nozzle (4), and the fiber coalescer (6) is also fixed on the inner wall of the tower body (1).

2. The cryogenic oxygen precooling device as described in claim 1, characterized in that, A first connecting hole (210) is opened at the lower middle position of the side wall of the connecting cylinder (201), and a second connecting hole (102) is opened at the lower middle position of the side wall of the tower body (1). A second water inlet pipe (211) is installed in the first connecting hole (210) and the second connecting hole (102). One end of the second water inlet pipe (211) is connected to the inner cavity of the connecting cylinder (201), and the other end of the second water inlet pipe (211) is connected to the transmission component (7).

3. The cryogenic oxygen precooling device as described in claim 2, characterized in that, The transmission component (7) includes a water storage tank (701), with a water inlet (702) at the top of the water storage tank (701) and a water pump (703) at the top of the water storage tank (701). One side of the water pump (703) is connected to one end of a water pumping pipe (704), and the other end of the water pumping pipe (704) extends into the water storage tank (701). The other side of the water pump (703) is connected to one end of a first drain pipe (705), and the other end of the first drain pipe (705) is connected to the other end of a second water inlet pipe (211).

4. The cryogenic oxygen precooling device as described in claim 2, characterized in that, A third connecting hole (212) is opened at the upper middle position of the side wall of the connecting cylinder (201), and a fourth connecting hole (103) is opened at the upper middle position of the side wall of the tower body (1). A second drain pipe (213) is installed in the third connecting hole (212) and the fourth connecting hole (103). One end of the second drain pipe (213) is connected to the inner cavity of the connecting cylinder (201), and the other end of the second drain pipe (213) extends out of the tower body (1).

5. The cryogenic oxygen precooling device as described in claim 4, characterized in that, The first connecting hole (210) and the third connecting hole (212) are symmetrically distributed with their top and bottom offsets, the second connecting hole (102) and the fourth connecting hole (103) are symmetrically distributed with their top and bottom offsets, the first connecting hole (210) and the second connecting hole (102) are arranged on the same horizontal plane, and the third connecting hole (212) and the fourth connecting hole (103) are arranged on the same horizontal plane. The third mounting hole (101) and the fourth mounting hole (104) are symmetrically distributed with their positions staggered vertically.

6. The cryogenic oxygen precooling device as described in claim 1, characterized in that, The connecting cylinder (201) is fixedly connected to the inner wall of the tower body (1) through the support frame (214).

7. The cryogenic oxygen precooling device as described in claim 1, characterized in that, The support rods (208) are vertically arranged on the top of the exhaust frame (207), and the support rods (208) are symmetrically and evenly distributed along the circumference. There are four support rods (208).

8. The cryogenic oxygen precooling device as described in claim 1, characterized in that, The top center of the tower body (1) is fixedly connected to an air outlet pipe (8), and the bottom center of the tower body (1) is fixedly connected to a water outlet pipe (9). Both the air outlet pipe (8) and the water outlet pipe (9) are connected to the inner cavity of the tower body (1). The air outlet pipe (8) is coaxially arranged with the second mounting hole (203), and the water outlet pipe (9) is coaxially arranged with the first mounting hole (202).

9. The cryogenic oxygen precooling device as described in claim 1, characterized in that, The tower body (1) is fixed by the tower body mounting bracket (10).

10. The cryogenic oxygen precooling device as described in claim 1, characterized in that, The third mounting hole (101) is located above the fourth connecting hole (103); The fourth mounting hole (104) is located below the second connecting hole (102).

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