Low-temperature pump pool

Abstract

The utility model discloses a low-temperature pump pool which comprises a low-temperature pump pool shell and a vacuum structure. An inner cylinder is arranged in the low-temperature pump pool shell. The vacuum structure is arranged between the low-temperature pump pool shell and the inner cylinder and comprises a vacuum interlayer arranged between the inner cylinder and the low-temperature pump pool shell, and a heat insulation layer is arranged in the vacuum interlayer. According to the low-temperature pump pool, after the low-temperature pump pool in a vacuum treatment type is selected, the cold loss of liquid can be effectively reduced, the economic benefit is improved, meanwhile, the heat insulation material is arranged in the vacuum interlayer for isolation treatment, and the corrugated metal wires are arranged in the heat insulation material and the vacuum interlayer, so that the heat insulation material is supported, and meanwhile, the heat insulation effect of the low-temperature pump pool is improved. The corrugated design can also reduce the situation that a heat insulation material is not attached to the inner cylinder during thermal expansion and cold contraction in the vacuum interlayer, and the vacuum pump pool is reasonable in design structure, low in space occupancy rate, convenient to install and free of later maintenance. And the economic benefit is improved.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic pump pool technology, specifically to a cryogenic pump pool. Background Technology

[0002] A cryogenic pump tank is a device that uses cryogenic technology to create a vacuum environment, primarily used in scientific research, natural gas, aerospace, and other fields. It achieves the vacuum effect by condensing gas molecules on an extremely low-temperature surface.

[0003] Currently, cryogenic pump pools on the market achieve a vacuum effect by condensing gas molecules on an extremely low-temperature surface. Traditional cryogenic pump pools use insulation materials to address the problem of cold loss, but their insulation effect is poor and cannot effectively guarantee the purity of the liquid. This results in a large amount of gas in the traditional cryogenic pump pool needing to be vented before the cryogenic submersible pump can be operated, causing waste and greatly increasing costs. Utility Model Content

[0004] The purpose of this utility model is to provide a cryogenic pump pool to solve the problem of cold loss caused by filling the cryogenic pump pool with insulation material as mentioned in the background art. However, the insulation effect is poor and it cannot effectively guarantee the purity of the liquid. As a result, a large amount of gas in the traditional cryogenic pump pool needs to be vented before the cryogenic submersible pump can be operated, which causes waste and greatly increases the cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cryogenic pump tank, comprising a cryogenic pump tank shell, a vacuum structure, an inner cylinder, a vacuum interlayer, a corrugated metal ring, and a heat insulation layer: the cryogenic pump tank shell contains an inner cylinder; the vacuum structure is disposed between the cryogenic pump tank shell and the inner cylinder, the vacuum structure includes a vacuum interlayer formed between the inner cylinder and the cryogenic pump tank shell, a heat insulation layer is disposed within the vacuum interlayer, the heat insulation layer wraps around the outer periphery of the inner cylinder, and a corrugated metal ring is also disposed within the vacuum interlayer, one side of the corrugated end of the corrugated metal ring abuts against the side edge of the heat insulation layer, and the other side of the corrugated end of the corrugated metal ring abuts against the inner wall of the vacuum interlayer.

[0006] Preferably, the corrugated metal rings are evenly distributed within the vacuum interlayer, and the side of the heat insulation layer away from the corrugated metal rings is attached to the outer wall of the inner cylinder.

[0007] Preferably, the top of the cryogenic pump tank shell and the inner cylinder is connected to a sealing plate that seals the vacuum jacket, and the sealing plate is a circular ring design.

[0008] Preferably, a mounting base plate is welded to the bottom of the cryogenic pump tank shell, and the mounting base plate is rectangular in plan view.

[0009] Preferably, the mounting base plate has four threaded holes, which are located at the corners of the mounting base plate.

[0010] Preferably, the inner cylinder is provided with a liquid inlet pipe, which extends through the inner cylinder to the outside of the cryogenic pump tank shell.

[0011] Preferably, the cryogenic pump tank shell is provided with a cover, and a sealing ring is provided at the bottom of the cover, which is inserted into the inner cylinder.

[0012] Preferably, the cover is connected to a liquid outlet pipe, which extends through the cover into the inner cylinder.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This cryogenic pump pool not only effectively reduces liquid cooling loss and improves economic efficiency by using a vacuum-type cryogenic pump pool, but also incorporates insulation material within the vacuum jacket for isolation. Furthermore, corrugated metal wires within the insulation material and vacuum jacket provide support for the insulation material, and the corrugated design reduces the risk of misfitting between the insulation material and the inner cylinder during thermal expansion and contraction within the vacuum jacket. The vacuum pump pool also features a reasonable design structure, low space occupancy, convenient installation, and requires no subsequent maintenance, thus improving economic efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of a partial explosion structure of the present invention;

[0016] Figure 3 This is a top view of the structure of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Schematic diagram of a partial structure of AA;

[0018] Figure 5 For the present utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the picture:

[0020] 1. Cryogenic pump tank shell; 11. Sealing plate; 12. Mounting base plate; 13. Threaded hole; 14. Inner cylinder; 2. Discharge pipe; 3. Cover; 4. Inlet pipe; 5. Vacuum structure; 51. Vacuum jacket; 52. Corrugated metal ring; 53. Insulation layer. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] like Figure 1-5 As shown, a cryogenic pump tank includes a cryogenic pump tank shell 1, a vacuum structure 5, an inner cylinder 14, a vacuum jacket 51, a corrugated metal ring 52, and a heat insulation layer 53. The inner cylinder 14 is disposed inside the cryogenic pump tank shell 1 and is sleeved within the cryogenic pump tank shell 1. The inner cylinder 14 and the cryogenic pump tank shell 1 are as follows: Figure 1 and Figure 2 All of the designs shown are circular. To ensure the stability of the cryogenic pump tank shell 1 and inner cylinder 14 during use, stainless steel or aluminum alloy should be selected as the materials.

[0024] To achieve vacuum isolation between the cryogenic pump tank shell 1 and the inner cylinder 14, a vacuum structure 5 is installed between them. The vacuum structure 5 includes a vacuum interlayer 51, a corrugated metal ring 52, and a heat insulation layer 53. Specifically, the vacuum interlayer 51 is formed within the gap between the inner cylinder 14 and the cryogenic pump tank shell 1. The heat insulation layer 53 is fitted inside the vacuum interlayer 51. The heat insulation layer 53 is composed of multiple layers of aluminum foil and fiberglass cloth, totaling 30-80 layers. The thickness and number of layers of the heat insulation layer 53 are adjusted according to the specific requirements of the vacuum interlayer 51 and the inner cylinder 14. The heat insulation layer 53 also wraps around the outer periphery of the inner cylinder 14, providing insulation to its outer circumference. The function is to place a corrugated metal ring 52 inside the vacuum interlayer 51. It should be noted that one side of the corrugated end of the corrugated metal ring 52 abuts against the side of the heat insulation layer 53, and the other side of the corrugated end of the corrugated metal ring 52 abuts against the inner wall of the vacuum interlayer 51. The design of the corrugated metal ring 52 provides a certain expansion space when the heat insulation layer 53 expands with temperature changes, reducing the probability of the heat insulation layer 53 damaging the vacuum interlayer 51. At the same time, since the heat insulation layer 53 abuts against the vacuum interlayer 51 and the corrugated metal ring 52, the fit between the corrugated metal ring 52 and the outer periphery of the inner cylinder 14 is further increased, further enhancing the heat insulation effect of the inner cylinder 14 during use.

[0025] The corrugated metal rings 52 are evenly distributed in the vacuum jacket 51, and the side of the heat insulation layer 53 away from the corrugated metal rings 52 is attached to the outer wall of the inner cylinder 14.

[0026] The top of the cryogenic pump tank shell 1 and the inner cylinder 14 is connected to a sealing plate 11 that seals the vacuum jacket 51. The sealing plate 11 is a circular design.

[0027] The bottom of the cryogenic pump tank shell 1 is welded with a mounting base plate 12, which is rectangular in shape when viewed from above.

[0028] The mounting base plate 12 has four threaded holes 13, which are located at the corners of the mounting base plate 12.

[0029] The effect achieved by the entire embodiment is that one side of the corrugated end of the metal corrugated ring 52 abuts against the side of the heat insulation layer 53, and the other side of the corrugated end of the metal corrugated ring 52 abuts against the inner wall of the vacuum jacket 51. The design of the corrugated metal corrugated ring 52 provides a certain expansion space when the heat insulation layer 53 expands with temperature changes, reducing the probability of the heat insulation layer 53 damaging the vacuum jacket 51. At the same time, since the heat insulation layer 53 abuts against the vacuum jacket 51 and the metal corrugated ring 52, the fit between the metal corrugated ring 52 and the outer periphery of the inner cylinder 14 is further increased, further enhancing the heat insulation effect of the inner cylinder 14 during use. Meanwhile, existing cryogenic pump pools solve the problem of cold loss by filling with heat insulation materials, but their heat insulation effect is poor and cannot effectively guarantee the purity of the liquid. This results in a large amount of gas in the traditional cryogenic pump pool needing to be vented before the cryogenic submersible pump is put into operation, causing waste and greatly increasing costs. Choosing a cryogenic pump tank with vacuum processing capability can effectively reduce the loss of liquid cooling, improve economic efficiency, and the vacuum pump tank has a reasonable design structure, low space occupation, convenient installation, and requires no subsequent maintenance, thus improving economic efficiency.

[0030] Example 2

[0031] like Figure 1-5 As shown, a cryogenic pump tank has an inlet pipe 4 installed inside the inner cylinder 14. The inlet pipe 4 passes through the inner cylinder 14 to the outside of the cryogenic pump tank shell 1, and the inlet pipe 4 and the cryogenic pump tank shell 1 are welded together.

[0032] The cryogenic pump tank shell 1 is connected to a cover 3 by flanges and bolts. A sealing ring is provided at the bottom of the cover 3, which is inserted into the inner cylinder 14 to increase the sealing between the cover 3 and the inner cylinder 14 during use.

[0033] A liquid outlet pipe 2 is welded to the cover 3, and the liquid outlet pipe 2 passes through the cover 3 and into the inner cylinder 14.

[0034] Working principle: When using this cryogenic pump pool, firstly, one side of the corrugated end of the metal corrugated ring 52 abuts against the side of the insulation layer 53, and the other side of the corrugated end of the metal corrugated ring 52 abuts against the inner wall of the vacuum jacket 51. The design of the corrugated metal corrugated ring 52 provides a certain expansion space when the insulation layer 53 expands with temperature changes, reducing the probability of the insulation layer 53 damaging the vacuum jacket 51. At the same time, since the insulation layer 53 abuts against the vacuum jacket 51 and the metal corrugated ring 52, the fit between the metal corrugated ring 52 and the outer periphery of the inner cylinder 14 is further increased, further enhancing the heat insulation effect of the inner cylinder 14 during use. Meanwhile, existing cryogenic pump pools use insulation materials to solve the problem of cold loss, but their insulation effect is poor and cannot effectively guarantee the purity of the liquid. This results in a large amount of gas in the traditional cryogenic pump pool needing to be vented before the cryogenic submersible pump is put into operation, causing waste and greatly increasing costs. Choosing a cryogenic pump tank with vacuum processing effectively reduces liquid cooling loss, improves economic efficiency, and features a rationally designed structure, low space occupancy, easy installation, and no need for subsequent maintenance. This improved economic efficiency ultimately led to the successful completion of the cryogenic pump tank project.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cryogenic pump tank, characterized in that, include: A cryogenic pump tank shell, wherein an inner cylinder is provided inside the cryogenic pump tank shell; A vacuum structure is disposed between the cryogenic pump tank shell and the inner cylinder. The vacuum structure includes a vacuum interlayer formed between the inner cylinder and the cryogenic pump tank shell. A heat insulation layer is disposed within the vacuum interlayer and wraps around the outer periphery of the inner cylinder. A corrugated metal ring is also disposed within the vacuum interlayer. One side of the corrugated end of the corrugated metal ring abuts against the side edge of the heat insulation layer, and the other side of the corrugated end of the corrugated metal ring abuts against the inner wall of the vacuum interlayer.

2. The cryogenic pump tank according to claim 1, characterized in that: The corrugated metal rings are evenly distributed within the vacuum interlayer, and the side of the heat insulation layer away from the corrugated metal rings is attached to the outer wall of the inner cylinder.

3. A cryogenic pump tank according to claim 2, characterized in that: The top of the cryogenic pump tank shell and inner cylinder is connected to a sealing plate that seals the vacuum jacket. The sealing plate is a circular design.

4. A cryogenic pump tank according to claim 3, characterized in that: The bottom of the cryogenic pump tank shell is welded with a mounting base plate, which is rectangular in shape when viewed from above.

5. A cryogenic pump tank according to claim 4, characterized in that: The mounting base plate has four threaded holes, which are located at the corners of the mounting base plate.

6. A cryogenic pump tank according to claim 1, characterized in that: The inner cylinder is provided with a liquid inlet pipe, which extends through the inner cylinder to the outside of the cryogenic pump tank shell.

7. A cryogenic pump tank according to claim 1, characterized in that: The cryogenic pump tank shell is provided with a cover, and a sealing ring is provided at the bottom of the cover, which is inserted into the inner cylinder.

8. A cryogenic pump tank according to claim 7, characterized in that: A liquid outlet pipe is connected to the cover, and the liquid outlet pipe passes through the cover and into the inner cylinder.

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