Cold insulation and heat insulation device for liquid pump

Abstract

The utility model relates to the technical field of heat insulation equipment, in particular to a liquid pump cold insulation and heat insulation device which comprises a cold insulation and heat insulation box and a base plate, the cold insulation and heat insulation box is installed at the upper end of the base plate, a rubber sealing layer is arranged at the lower end of the cold insulation and heat insulation box, and the cold insulation and heat insulation box comprises an outer box body, an inner box body and a cold insulation box. A heat insulation cavity is formed between the outer box body and the inner box body, a cooling cavity is formed between the cold insulation box and the inner box body, a heat collection copper pipe is arranged on the inner wall of the cold insulation and heat insulation box, a heat conduction copper pipe is connected to the heat collection copper pipe, and the heat conduction copper pipe extends into the cooling cavity. A first extension pipe extending into the cold insulation and heat insulation box is embedded in one side of the upper end face of the cold insulation and heat insulation box, and a second extension pipe extending into the cold insulation and heat insulation box is embedded in the side end face of the cold insulation and heat insulation box. The liquid pump has the advantages of being good in cold insulation and heat insulation effect on the liquid pump and capable of cooling the liquid pump to prevent the cold insulation effect from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of heat preservation equipment, in particular to a cold-insulating and heat-insulating device for a liquid pump. Background Art

[0002] Liquid pumps are special pumps used to transport cryogenic liquids (such as liquid oxygen, liquid nitrogen, liquid argon, liquid hydrocarbons and liquefied natural gas, etc.) in petroleum, air separation and chemical plants. In air separation, it is mainly used to transport liquid products, such as liquid oxygen pumps, liquid nitrogen pumps and liquid argon pumps. Process pumps are also set up in the air separation process, for example: liquid oxygen circulation pumps in the main cooling explosion-proof system; when the upper and lower towers are separated, the liquid oxygen at the bottom of the upper tower is sent to the main condenser evaporator at the top of the lower tower; the crude argon tower is divided into crude argon tower I and crude argon tower II, and a liquid argon pump is set between the two towers. According to different working principles, cryogenic pumps are mainly divided into reciprocating and centrifugal types.

[0003] The liquid pump needs to be insulated during use. The liquid pump insulation device currently used mainly adopts an insulating cover, which is easily affected by the external environment and has a poor cooling effect. In addition, a certain temperature will be generated during the operation of the liquid pump, thereby affecting the cooling effect of the liquid pump. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid pump cold insulation device, which has the advantages of good cold insulation effect on the liquid pump and can cool the liquid pump to prevent affecting the cold insulation effect, thereby solving the problems raised by the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a liquid pump cold insulation device, comprising a cold insulation box and a base plate, the upper end surface of the base plate is provided with a mounting plate, the cold insulation box is installed on the upper end of the base plate, the lower end of the cold insulation box is provided with a rubber sealing layer, the cold insulation box comprises an outer box body, an inner box body and a cold insulation box, an insulation cavity is formed between the outer box body and the inner box body, a cooling cavity is formed between the cold insulation box and the inner box body, a heat collecting copper tube is provided on the inner wall of the cold insulation box, a heat collecting copper tube is connected to a heat conducting copper tube, the heat conducting copper tube extends into the cooling cavity, a first extension tube extending into the cold insulation box is embedded and installed on one side of the upper end surface of the cold insulation box, a second extension tube extending into the cold insulation box is embedded and installed on the side end surface of the cold insulation box, and a temperature sensor is provided on the inner wall of the cold insulation box.

[0006] Preferably, a support base is installed at the lower end of the base plate, and there are four support bases in total, and the four support bases are distributed in an array with respect to the base plate. The support base can support the base plate.

[0007] Preferably, a fixing plate is installed at the side end of the cold-insulating box, and a total of six fixing plates are provided in an array, and mounting holes are provided on the fixing plates. The fixing plates are used to install the cold-insulating box.

[0008] Preferably, the base plate is provided with threaded holes, six of which are arranged in an array, and the threaded holes correspond to the mounting holes one by one. The threaded holes and the mounting holes can be provided with bolts to fix the fixing plate.

[0009] Preferably, a water inlet pipe and a water outlet pipe are installed on the side end surface of the cold insulation box, and both the water inlet pipe and the water outlet pipe are connected to the cooling chamber, and valves are installed on the water inlet pipe and the water outlet pipe. Cooling water can be added to the cooling chamber through the water inlet pipe, and the cooling water in the cooling chamber can be discharged through the water outlet pipe.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the liquid pump is installed at the upper end of the mounting plate, and then the cold-insulating box is installed to make the heat-collecting copper tube contact with the outer surface of the liquid pump. The heat insulation can be carried out through the heat-insulating cavity, which can effectively prevent the external temperature from affecting the liquid pump. The temperature in the cold-insulating box can be detected by the temperature sensor. When the temperature of the liquid pump rises, cooling water is added to the cooling cavity through the water inlet pipe. The temperature on the liquid pump can be absorbed by the heat-collecting copper tube, and the temperature can be introduced into the cooling cavity through the heat-conducting copper tube. The temperature of the heat-conducting copper tube can be absorbed by the cooling water, so that the liquid pump can be cooled, which can make the cold-insulating effect of the utility model better. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a cross-sectional structure of the utility model from a side view;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a front view;

[0013] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0014] The reference numerals and names in the figures are as follows:

[0015] 1. Cold-insulating box; 2. First extension pipe; 3. Outer box; 4. Heat-conducting copper tube; 5. Heat-collecting copper tube; 6. Insulating cavity; 7. Water inlet pipe; 8. Inner box; 9. Water outlet pipe; 10. Base plate; 11. Support base; 12. Temperature sensor; 13. Mounting plate; 14. Cold-insulating box; 15. Cooling cavity; 16. Fixing plate; 17. Mounting hole; 18. Second extension pipe. DETAILED DESCRIPTION

[0016] 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.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Embodiment 1

[0020] See also Figures 1 to 3 The utility model provides an embodiment of a liquid pump cold insulation device, comprising a cold insulation box 1 and a base plate 10, a support base 11 is installed at the lower end of the base plate 10, and there are four support bases 11, and the four support bases 11 are arranged in an array with respect to the base plate 10, and a mounting plate 13 is arranged on the upper end surface of the base plate 10, the cold insulation box 1 is installed on the upper end of the base plate 10, and a fixing plate 16 is installed at the side end of the cold insulation box 1, and there are six fixing plates 16 arranged in an array, and mounting holes 17 are opened on the fixing plate 16, and threaded holes are opened on the base plate 10, and there are six threaded holes arranged in an array, and the threaded holes correspond to the mounting holes 17 one by one, and a rubber sealing layer is arranged at the lower end of the cold insulation box 1, the cold insulation box 1 comprises an outer box body 3, an inner box body 8 and a cold insulation box 14, and an insulation cavity 6 is formed between the outer box body 3 and the inner box body 8.

[0021] In this embodiment, the liquid pump is installed at the upper end of the mounting plate 13, and then the cold-insulating box 1 is installed through the fixing plate 16 and the bolts. After the cold-insulating box 1 is installed, the heat-collecting copper tube 5 can be in contact with the outer surface of the liquid pump. The pipes connected to the water inlet and outlet of the liquid pump extend out of the cold-insulating box 1 from the first extension tube 2 and the second extension tube 18 respectively. During use, insulation can be performed through the insulation cavity 6, which can effectively prevent the external temperature from affecting the liquid pump.

[0022] Embodiment 2

[0023] See also Figures 1 to 3 , the utility model provides an embodiment: a liquid pump cold insulation device, compared with the first embodiment, this embodiment also includes: a cooling chamber 15 is formed between the cold insulation box 14 and the inner box body 8, the side end surface of the cold insulation box 1 is installed with a water inlet pipe 7 and a water outlet pipe 9, the water inlet pipe 7 and the water outlet pipe 9 are both connected to the cooling chamber 15, and valves are installed on the water inlet pipe 7 and the water outlet pipe 9, the inner wall of the cold insulation box 1 is provided with a heat collecting copper tube 5, the heat collecting copper tube 5 is connected to the heat conducting copper tube 4, the heat conducting copper tube 4 extends into the cooling chamber 15, one side of the upper end surface of the cold insulation box 1 is embedded with a first extension tube 2 extending into the cold insulation box 1, the side end surface of the cold insulation box 1 is embedded with a second extension tube 18 extending into the cold insulation box 1, and the inner wall of the cold insulation box 1 is provided with a temperature sensor 12.

[0024] In this embodiment, during use, the temperature in the cold insulation box 1 can be detected by the temperature sensor 12. When the temperature of the liquid pump rises, cooling water is added to the cooling chamber 15 through the water inlet pipe 7. The temperature of the liquid pump can be absorbed by the heat collecting copper tube 5, and the temperature can be introduced into the cooling chamber 15 through the heat conducting copper tube 4. The temperature of the heat conducting copper tube 4 can be absorbed by the cooling water, so that the liquid pump can be cooled. After use, the water in the cooling chamber 15 can be discharged through the water outlet pipe 9.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A liquid pump cold insulation device, comprising a cold insulation box (1) and a base plate (10), characterized in that: The upper end surface of the base plate (10) is provided with a mounting plate (13); the cold-insulating box (1) is installed on the upper end of the base plate (10); the lower end of the cold-insulating box (1) is provided with a rubber sealing layer; the cold-insulating box (1) comprises an outer box body (3), an inner box body (8) and a cold-insulating box (14); an insulating cavity (6) is formed between the outer box body (3) and the inner box body (8); a cooling cavity (15) is formed between the cold-insulating box (14) and the inner box body (8); The inner wall of the box (1) is provided with a heat collecting copper tube (5), the heat collecting copper tube (5) is connected to a heat conducting copper tube (4), the heat conducting copper tube (4) extends into a cooling chamber (15), a first extension tube (2) extending into the cold insulation box (1) is embedded and installed on one side of the upper end surface of the cold insulation box (1), a second extension tube (18) extending into the cold insulation box (1) is embedded and installed on the side end surface of the cold insulation box (1), and a temperature sensor (12) is provided on the inner wall of the cold insulation box (1).

2. A liquid pump cold and heat insulation device according to claim 1, characterized in that: A supporting base (11) is installed at the lower end of the base plate (10), and a total of four supporting bases (11) are provided, and the four supporting bases (11) are distributed in an array with respect to the base plate (10).

3. A liquid pump cold and heat insulation device according to claim 1, characterized in that: A fixing plate (16) is installed at the side end of the cold-insulating box (1), and a total of six fixing plates (16) are arranged in an array, and mounting holes (17) are provided on the fixing plates (16).

4. A liquid pump cold and heat insulation device according to claim 1, characterized in that: The base plate (10) is provided with threaded holes, six of which are arranged in an array, and the threaded holes correspond to the mounting holes (17) one by one.

5. The liquid pump cold and heat insulation device according to claim 1, characterized in that: A water inlet pipe (7) and a water outlet pipe (9) are installed on the side end surface of the cold-insulating box (1); the water inlet pipe (7) and the water outlet pipe (9) are both connected to the cooling chamber (15); and valves are installed on the water inlet pipe (7) and the water outlet pipe (9).

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