Low-temperature medium delivery pump pry

Abstract

The utility model relates to the technical field of low-temperature pumps, in particular to a low-temperature medium conveying pump pry which comprises a base. The low-temperature pump comprehensive control cabinet is arranged in the left side mounting area of the base; the heat preservation box is arranged in the right side installation area of the base, a low-temperature pump is arranged in the heat preservation box, and an exhaust valve is arranged on a motor end cover at the front end of the low-temperature pump; a cable protection pipe, an inlet pipe and an outlet pipe. According to the low-temperature medium conveying pump skid, the base, the low-temperature pump comprehensive control cabinet, the heat preservation box, the low-temperature pump, the inlet and outlet pipe and other components are integrated into an integrated structure, and the compactness of the structure is achieved. The layout is more reasonable, the occupied area is obviously reduced, and the problem that an installation scheme needs to be formulated according to the field space in the traditional layout is solved. The integrated design enables the field equipment installation efficiency to be greatly improved, and the installation time and the work amount are reduced. The labor cost is reduced, the installation process is simplified due to the integrated structure, and needed manual operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cryogenic pumps, in particular to a cryogenic medium delivery pump skid. Background Art

[0002] In recent years, with the rapid development of the air separation industry, cryogenic pumps have been widely used in tank truck filling processes. Cryogenic pumps are specialized pumps used to transport cryogenic liquids (such as liquid oxygen, liquid nitrogen, liquid argon, liquid hydrocarbons, and liquefied natural gas) in petroleum, air separation, and chemical plants. In air separation, they are primarily used to transport liquid products, such as liquid oxygen pumps, liquid nitrogen pumps, and liquid argon pumps.

[0003] The existing cryopump system is a split-type structure, consisting of a cryopump, control cabinet, and other supporting equipment. During installation, the cryopump is fixed to a platform at a certain height, while the control cabinet is fixed to the horizontal ground to one side. This requires two installation foundations on site, resulting in an unsightly layout. Furthermore, the power and signal cables connecting the pump and control cabinet require a layout plan tailored to the site's space, along with cable protection measures. This complex and tedious work process resulted in low efficiency, making it impossible to complete the installation of the equipment in one step after it arrived on site. Utility Model Content

[0004] The purpose of this utility model is to provide a cryogenic medium delivery pump skid to address the problem mentioned in the background art above, where the existing cryogenic pump assembly is a split structure, comprising a cryogenic pump, a control cabinet, and other supporting equipment. During installation, the cryogenic pump is fixed to a platform at a certain height, and the control cabinet is fixed to the horizontal ground on one side. This requires two installation foundations on site, resulting in an unsightly layout. In addition, the power and signal lines connecting the pump and the control cabinet require a layout plan and cable protection measures tailored to the space available on site.

[0005] To achieve the above-mentioned purpose, the utility model provides a cryogenic medium delivery pump skid, comprising a base for supporting and fixing the entire pump skid structure;

[0006] A cryopump integrated control cabinet is provided in the installation area on the left side of the base and is used to control and monitor the operating status of the cryopump;

[0007] An insulation box is provided in the installation area on the right side of the base. A cryopump is provided in the insulation box. The insulation box is used to maintain the operating temperature of the cryopump. An exhaust valve is provided on the motor end cover at the front end of the cryopump for discharging gas in the pump.

[0008] a cable protection tube, one end of which is arranged at the bottom of the cryopump integrated control cabinet and the other end is arranged at the side of the insulation box, for protecting the cables connecting the cryopump and the control cabinet;

[0009] an inlet pipe, the inlet pipe being arranged at the inlet of the cryogenic pump and being used for inputting a cryogenic medium;

[0010] An outlet pipe is provided at the outlet of the cryogenic pump and is used for outputting the cryogenic medium.

[0011] Preferably, the base is provided with a control cabinet power cable inlet, a motor power cable outlet and a signal line outlet to facilitate the connection and lead-out of cables and signal lines.

[0012] Preferably, a dehumidifier is provided inside the low-temperature integrated control cabinet to maintain a dry environment inside the control cabinet and prevent electrical components from getting damp.

[0013] Preferably, the lower surface of the low-temperature integrated control cabinet body is provided with a heat-insulating sealing strip and a cable gland to enhance the heat-insulating performance of the control cabinet and the sealing performance of the cable interface.

[0014] Preferably, the cryogenic pump is arranged in a heat preservation box, and the heat preservation box and the cryogenic pump are fixed to the base by bolts, so as to ensure that the pump body is stable and the heat preservation effect is good.

[0015] Preferably, the insulation box is provided with filling-type insulation cotton to improve the insulation performance of the insulation box and reduce energy loss.

[0016] Preferably, the surface of the thermal insulation box is provided with a plurality of through holes for installing and fixing various components.

[0017] Preferably, the inlet flange of the cryogenic pump is provided with a pressure transmitter for real-time monitoring of the inlet pressure; the motor end cover of the cryogenic pump is provided with a temperature transmitter and an explosion-proof wiring device for monitoring the motor temperature and ensuring electrical safety.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This cryogenic medium transfer pump skid achieves a compact structure by integrating the base, cryogenic pump integrated control cabinet, insulation box, cryogenic pump, inlet and outlet pipes, and other components into an integrated structure. This creates a more rational layout and significantly reduces the footprint, eliminating the traditional installation requirements of tailoring installation plans to site space. The integrated design significantly improves on-site equipment installation efficiency, reducing installation time and workload. It also reduces labor costs, as the integrated structure simplifies the installation process and reduces the number of manual operations required.

[0020] In addition, the insulated box effectively reduces the cryopump's pre-cooling time and reduces vaporization. This ensures stable operation and improves the equipment's reliability and service life. A pressure transmitter is installed on the cryopump's inlet flange for real-time inlet pressure monitoring. A temperature transmitter and explosion-proof wiring device are installed on the cryopump's motor end cap to monitor motor temperature and ensure electrical safety. These multifunctional integration and real-time monitoring features enhance the equipment's safety and controllability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the front structure of the utility model;

[0023] Figure 3 It is a side structural diagram of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the heat preservation box in the utility model;

[0025] The meaning of each number in the figure is:

[0026] 1. Cryogenic pump integrated control cabinet; 2. Inlet pipe; 3. Pressure transmitter; 4. Insulation box; 5. Cryogenic pump; 6. Outlet pipe; 7. Temperature transmitter; 8. Exhaust valve; 9. Explosion-proof wiring device; 10. Cable protection tube; 11. Base; 12. Protection tube joint. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiment of the present invention 10, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The utility model provides a low-temperature medium delivery pump skid, such as Figures 1-4 As shown, it includes a base 11 for supporting and fixing the entire pump skid structure;

[0029] A cryopump integrated control cabinet 1 is provided in the installation area on the left side of the base 11 and is used to control and monitor the operating status of the cryopump 5;

[0030] The insulation box 4 is arranged in the installation area on the right side of the base 11. A cryopump 5 is arranged in the insulation box 4. The insulation box 4 is used to maintain the working temperature of the cryopump 5. The front end motor end cover of the cryopump 5 is provided with an exhaust valve 8 for discharging gas in the pump;

[0031] A cable protection tube 10, one end of the cable protection tube 10 is arranged at the bottom of the cryogenic pump integrated control cabinet 1, and the other end is arranged at the side of the insulation box 4, for protecting the cables connecting the cryogenic pump and the control cabinet; there are multiple cable protection tubes 10, and the ends of the cable protection tubes 10 are threaded ends. The cable protection tubes 10 are connected end to end through a protection tube joint 12. The protection tube joint 12 is a tubular structure with internal threads at both ends. The two ends of the protection tube joint 12 are connected to the end of the cable protection tube 10 through threads to achieve rapid installation and disassembly of the cable protection tube 10.

[0032] Inlet pipe 2, which is provided at the inlet of cryogenic pump 5 and is used for inputting cryogenic medium;

[0033] The outlet pipe 6 is provided at the outlet of the cryopump 5 and is used for outputting the cryogenic medium.

[0034] The insulation box 4 is cleverly positioned in the right mounting area of ​​the base 11 and houses the cryopump 5. This integrated design not only makes the structure more compact but also greatly optimizes the spatial layout, significantly reducing the footprint of the entire pump skid. Insulation and exhaust functions: The insulation box 4 primarily maintains the operating temperature of the cryopump 5, ensuring its stable operation. Furthermore, the motor end cap at the front of the cryopump 5 is equipped with an exhaust valve 8. This design effectively solves the problem of exhausting gas within the pump, further ensuring its normal operation.

[0035] One end of the cable protection tube 10 is connected to the bottom of the cryopump integrated control cabinet 1, and the other end extends to the side of the insulation box 4. This design effectively protects the cables connecting the cryopump and control cabinet from damage. Furthermore, the control cabinet power cable inlet, motor power cable outlet, and signal cable outlet located on the base 11 greatly facilitate the connection and extraction of cables and signal lines, improving installation convenience.

[0036] The inlet pipe 2 and the outlet pipe 6 are respectively arranged at the inlet and outlet of the cryogenic pump 5. This design ensures the smooth input and output of the cryogenic medium and improves the medium transportation efficiency.

[0037] In this embodiment, the base 11 is provided with a control cabinet power cable inlet, a motor power cable outlet and a signal line outlet, so as to facilitate the connection and extraction of cables and signal lines.

[0038] Specifically, a dehumidifier is provided inside the low-temperature integrated control cabinet 1 to maintain a dry environment inside the control cabinet and prevent electrical components from getting wet.

[0039] Furthermore, the lower surface of the low-temperature integrated control cabinet body 1 is provided with a heat-insulating sealing strip and a cable gland, which are used to enhance the heat-insulating performance of the control cabinet and the sealing performance of the cable interface.

[0040] Furthermore, the cryopump 5 is disposed in the heat preservation box 4 , and the heat preservation box 4 and the cryopump 5 are fixed to the base 11 by bolts, ensuring that the pump body is stable and has a good heat preservation effect.

[0041] Furthermore, a filling type heat-insulating cotton is provided in the heat-insulating box 4 to improve the heat-insulating performance of the heat-insulating box 4 and reduce energy loss.

[0042] Furthermore, the surface of the heat preservation box 4 is provided with a plurality of through holes for installing and fixing various components.

[0043] Furthermore, the inlet flange of the cryogenic pump 5 is provided with a pressure transmitter 3 for real-time monitoring of the inlet pressure; the motor end cover of the cryogenic pump 5 is provided with a temperature transmitter 7 and an explosion-proof wiring device 9 for monitoring the motor temperature and ensuring electrical safety.

[0044] When installing the low-temperature medium delivery pump skid of the present invention, install the temperature transmitter 7 and the explosion-proof wiring device 9 on the motor end cover of the low-temperature pump 5 at the set position and tighten them with a wrench; install the pressure transmitter 3 on the outlet flange of the low-temperature pump 5 at the set position and tighten them with a wrench; install the low-temperature integrated control cabinet 1 at the set position on the left side of the base 11 and tighten them with fasteners; align the lower part of the insulation box 4 and the installation hole of the low-temperature pump 5 and install them at the set position on the right side of the base 11, fasten them with fasteners, then pass the outlet pipe 2 through the reserved hole of the lower part of the insulation box 4 and align it with the outlet flange of the low-temperature pump 5, and then fasten it with fasteners; align the middle part of the insulation box 4 with the lower part, align the reserved holes of the two halves, and then fasten it with fasteners, and then Pass the inlet pipe 6 through the reserved hole in the middle part of the insulation box 4 and align it with the inlet flange of the cryogenic pump 5, and tighten it with fasteners; pass the exhaust valve 8 through the reserved hole in the middle part of the insulation box 4 and install it into the set position of the motor end cover of the cryogenic pump 5, and tighten it with a wrench; stuff the insulation cotton into the insulation box 4, fully wrap the cryogenic pump 5, and then align the upper part of the insulation box 4 with the middle part, align the reserved holes of the two halves, and then fasten it with fasteners; pass the signal lines of the temperature transmitter 7 and pressure transmitter 3 and the cable of the explosion-proof wiring device 9 into the cable protection tube 10, and then connect the cable protection tubes 10 with the protection tube joint 12, and finally connect the signal line and cable to the cryogenic pump integrated control cabinet 1; the entire equipment is installed before leaving the factory.

[0045] When in use, the pump skid is hoisted into the on-site installation position, the mounting hole of the base 11 is aligned with the on-site foundation, fastened with fasteners, and then the inlet pipe 6 and the outlet pipe 2 are connected to the on-site pipeline and fastened with fasteners. Connect the on-site power cable to the cryogenic pump integrated control cabinet through the cable protection tube on the left side of the base 11, and then start the machine; before starting the cryogenic pump 5, it is necessary to open the exhaust valve 8, and the low-temperature medium flows to various parts of the cryogenic pump 5 for pre-cooling, and the gas in the pump is discharged to the atmosphere through the exhaust valve 8 or flows back to the top of the liquid storage tank; the cryogenic pump 5 is arranged in the insulation box 4, and there is insulation cotton to keep the cryogenic pump 5 cold, which can accelerate the pre-cooling speed of the cryogenic pump 5 and reduce the medium vaporization phenomenon during the operation of the cryogenic pump 5. After the pre-cooling of the cryogenic pump 5 is completed, it is started; during the operation of the cryogenic pump 5, the cryogenic pump integrated control cabinet 1 will monitor it in real time through the pressure transmitter 3 and the temperature transmitter 7 to ensure the safe and stable operation of the cryogenic pump 5; a dehumidifier is provided in the cryogenic pump integrated control cabinet 1 to prevent the low temperature of the pump body from being transmitted to the cryogenic pump integrated control cabinet along the signal line / cable to produce dew.

[0046] Finally, it should be noted that the temperature transmitter 7, explosion-proof wiring device 9, etc. in this embodiment, the electronic components in the above components are all universal standard parts or components known to those skilled in the art. Their structures and principles are known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle space of this device, all the above electrical components are connected by wires. The specific connection means should refer to the working sequence between the electrical components in the above working principle to complete the electrical connection, which are all well-known technologies in the art.

[0047] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cryogenic medium delivery pump skid, characterized by: include A base (11) for supporting and fixing the entire pump skid structure; A cryogenic pump integrated control cabinet (1), the cryogenic pump integrated control cabinet (1) being arranged in a left installation area of ​​the base (11) and being used for controlling and monitoring the operating status of the cryogenic pump (5); An insulation box (4), the insulation box (4) being arranged in the installation area on the right side of the base (11), a cryogenic pump (5) being arranged in the insulation box (4), the insulation box (4) being used to maintain the working temperature of the cryogenic pump (5), and an exhaust valve (8) being provided on the front end motor end cover of the cryogenic pump (5) for discharging gas in the pump; a cable protection tube (10), one end of the cable protection tube (10) being arranged at the bottom of the cryogenic pump integrated control cabinet (1) and the other end being arranged at the side of the insulation box (4), for protecting the cables connecting the cryogenic pump and the control cabinet; an inlet pipe (2), the inlet pipe (2) being arranged at the inlet of the cryogenic pump (5); Used for inputting low temperature medium; An outlet pipe (6) is provided at the outlet of the cryogenic pump (5) and is used for outputting the cryogenic medium.

2. The cryogenic medium delivery pump skid according to claim 1, characterized in that: The base (11) is provided with a control cabinet power cable inlet, a motor power cable outlet, and a signal line outlet, for facilitating the connection and extraction of cables and signal lines.

3. The cryogenic medium delivery pump skid according to claim 1, characterized in that: The low-temperature integrated control cabinet (1) is provided with a dehumidifier inside to maintain a dry environment inside the control cabinet and prevent electrical components from getting wet.

4. The cryogenic medium delivery pump skid according to claim 1, characterized in that: The lower surface of the low-temperature integrated control cabinet body (1) is provided with a heat-insulating sealing strip and a cable gland, which are used to enhance the heat-insulating performance of the control cabinet and the sealing performance of the cable interface.

5. The cryogenic medium delivery pump skid according to claim 1, characterized in that: The cryogenic pump (5) is arranged in the heat preservation box (4), and the heat preservation box (4) and the cryogenic pump (5) are fixed to the base (11) by means of bolts, thereby ensuring that the pump body is stable and has a good heat preservation effect.

6. The cryogenic medium delivery pump skid according to claim 1, characterized in that: The insulation box (4) is provided with filling-type insulation cotton for improving the insulation performance of the insulation box (4) and reducing energy loss.

7. The cryogenic medium delivery pump skid according to claim 1, characterized in that: The surface of the thermal insulation box (4) is provided with a plurality of through holes for installing and fixing various components.

8. The cryogenic medium delivery pump skid according to claim 1, characterized in that: The inlet flange of the cryogenic pump (5) is provided with a pressure transmitter (3) for real-time monitoring of the inlet pressure; the motor end cover of the cryogenic pump (5) is provided with a temperature transmitter (7) and an explosion-proof wiring device (9) for monitoring the motor temperature and ensuring electrical safety.

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