A vacuum pumping device for a cryogenic adiabatic liquid storage tank

Abstract

The present invention provides a vacuum pumping device for a cryogenic adiabatic liquid storage tank, which includes a base, a walking support module, an L-shaped mounting frame, a linear slide, a first telescopic push rod, a mounting frame, a horizontal air extraction module horizontally arranged at the left end of the mounting frame, a vertical air extraction module vertically arranged at the bottom of the mounting frame, a vacuum pump arranged on the top of the base, a three-way joint arranged at the air inlet end of the vacuum pump, a first air guiding module arranged between the three-way joint and the horizontal air extraction module, and a second air guiding module arranged between the three-way joint and the vertical air extraction module. A reinforcing rod is further arranged between the horizontal part and the vertical part of the mounting frame. Through the vacuum pumping device for a cryogenic adiabatic liquid storage tank of the present invention, not only can the vacuum pumping treatment of the storage tank be independently completed, but also the device can be conveniently moved integrally, and it can conveniently meet the vacuum pumping treatment of the storage tank placed vertically or horizontally, so as to better meet the use requirements of people.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum pumping for storage tanks, and particularly to a vacuum pumping device for cryogenic adiabatic liquid storage tanks. Background Art

[0002] Existing manufacturers of cryogenic adiabatic liquid storage tanks generally have a valve directly opened on the sealing device of the storage tank, and are connected to a vacuum pump through the valve to achieve the purpose of evacuating the tank body.

[0003] The invention application with publication number CN 102155385 A discloses a vacuum pumping device for cryogenic adiabatic liquid storage tanks, belonging to the chemical engineering field. It is composed of a rotating shaft connected with a handle, steel pipe I, steel pipe II, sleeve, gland, sleeve, combined seal, flange I, and flange II. Its characteristics are that the rotating shaft connected with the handle is respectively threadedly connected with the taper plug of the sealing device on the tank body through the gland, combined seal, steel pipe I, and flange I; the sleeve is fixed to steel pipe I and threadedly connected to the gland; steel pipe I is fixed to flange I; steel pipe II is fixed to steel pipe I and threadedly connected to flange II; the combined seal is placed inside the sleeve. This device is connected to the storage tank by flanges, can be reused, saves resources, and can effectively reduce the costs of manufacturers. However, in the process of using the technical solution of this application, it is also necessary to move the vacuum pump to the vicinity of the device separately, and cannot independently evacuate the storage tank. It is necessary to carry and move the device of this application and the vacuum pump separately, and cannot be moved integrally, so it will bring great inconvenience to people's use. Summary of the Invention

[0004] In view of this, in order to overcome the deficiencies of the prior art, the present invention provides a vacuum pumping device for cryogenic adiabatic liquid storage tanks, which can not only independently complete the vacuum pumping process for the storage tank, but also can be conveniently moved integrally, and can conveniently meet the vacuum pumping requirements for vertically or horizontally placed storage tanks, thus better meeting people's usage needs.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A vacuum pumping device for a cryogenic adiabatic liquid storage tank, comprising a base, a walking support module provided at the bottom of the base, an L-shaped mounting frame provided at the top of the base in the left-right direction with an opening facing left, a linear slide provided at the bottom wall of the top of the mounting frame and running in the left-right direction, a first telescopic push rod vertically provided at the bottom of the slide seat of the linear slide, a mounting frame provided at the bottom of the output shaft of the first telescopic push rod, a horizontal air extraction module horizontally provided at the left end of the mounting frame, a vertical air extraction module vertically provided at the bottom of the mounting frame, a vacuum pump provided at the top of the base, a three-way provided at the intake end of the vacuum pump, a first air guiding module provided between the three-way and the horizontal air extraction module, and a second air guiding module provided between the three-way and the vertical air extraction module. A reinforcing rod is further provided between the horizontal part and the vertical part of the mounting frame. Through the reinforcing rod, the firmness of the mounting frame can be enhanced.

[0006] Further, the horizontal air extraction module includes a second telescopic push rod horizontally provided at the left end of the mounting frame, a horizontal air extraction pipe provided at the end of the output shaft of the second telescopic push rod, and a first pipe joint provided on the horizontal air extraction pipe and used to connect with the outlet pipe of the storage tank. Through the second telescopic push rod, the horizontal position of the horizontal air extraction pipe can be conveniently adjusted so that the position of the horizontal air extraction pipe is adapted to the outlet pipe. Then, the outlet pipe of the horizontally arranged storage tank and the horizontal air extraction pipe can be connected together through the first pipe joint; the first air guiding module includes a receiving pipe horizontally penetrating the mounting frame, a connecting hose provided between the receiving pipe and the horizontal air extraction pipe, a first control valve provided on the top right interface of the three-way, and a first air guiding hose provided between the receiving pipe and the top right interface of the three-way. Through the cooperation of the horizontal air extraction pipe, the receiving pipe, the connecting hose, the first control valve, the first air guiding pipe, and the vacuum pump, the vacuum pumping treatment of the horizontally arranged storage tank can be conveniently carried out.

[0007] Further, the vertical air extraction module includes a vertical air extraction pipe vertically provided at the bottom of the mounting frame and a second pipe joint provided on the vertical air extraction pipe and used to connect with the outlet pipe of the storage tank. Through the vertical expansion and contraction of the first telescopic push rod, the second pipe joint can conveniently separate the outlet pipe of the vertically arranged storage tank from the vertical air extraction pipe, so as to prepare for the vacuum pumping of the vertically arranged storage tank; the second air guiding module includes a second control valve vertically provided on the top left interface of the three-way and a second air guiding hose provided between the vertical air extraction pipe and the top left interface of the three-way. Through the cooperation of the vertical air extraction pipe, the second control valve, and the second air guiding hose, the vacuum pumping treatment of the vertically arranged storage tank can be conveniently carried out.

[0008] Furthermore, the walking support module includes support legs arranged at the corners of the bottom of the base and walking wheels arranged at the bottoms of the support legs. Through the cooperation of the support legs and the walking wheels, the device can be moved to a suitable position time - saving and labor - saving; the walking wheels are universal wheels with wheel brakes. After moving the device to a suitable position, the wheel brakes can be locked to prevent the device from shifting easily.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the cooperation of the base, the walking support module, the mounting frame, the linear slide, the first telescopic push rod, the mounting frame, the horizontal air extraction module, the vertical air extraction module, the vacuum pump, the three - way joint, the first air guiding module and the second air guiding module, not only can the vacuum pumping process of the storage tank be completed independently, but also the device can be conveniently moved integrally, and it can conveniently meet the vacuum pumping process of the storage tank placed vertically or horizontally, thus better meeting the usage requirements of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural diagram of the present invention;

[0011] Figure 2 is a top - view sectional structural diagram of the mounting frame and the receiving pipe of the present invention;

[0012] Figure 3 is a front - view sectional structural diagram of the mounting frame and the receiving pipe of the present invention;

[0013] Figure 4 is a schematic structural diagram of the reinforcing rod of the present invention;

[0014] Figure 5 is a schematic structural diagram of the pushing rod and the anti - slip sleeve of the present invention.

[0015] In the figure: 101, base; 102, mounting frame; 103, linear slide; 104, first telescopic push rod; 105, mounting frame; 106, vacuum pump; 107, three - way joint; 108, support leg; 109, walking wheel; 110, reinforcing rod; 111, pushing rod; 112, anti - slip sleeve; 201, second telescopic push rod; 202, horizontal air extraction pipe; 203, first pipe joint; 204, receiving pipe; 205, connecting hose; 206, first control valve; 207, first air guiding hose; 301, vertical air extraction pipe; 302, second pipe joint; 303, second control valve; 304, second air guiding hose. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] As Figure 1 shown, a vacuum pumping device for a cryogenic adiabatic liquid storage tank includes a base 101, a walking support module provided at the bottom of the base 101, an L-shaped mounting frame 102 provided at the top of the base 101 in the left-right direction with an opening facing left, a linear slide 103 provided on the bottom wall of the top of the mounting frame 102 and running in the left-right direction, a first telescopic push rod 104 vertically provided at the bottom of the slide of the linear slide 103, a mounting frame 105 provided at the bottom of the output shaft of the first telescopic push rod 104, a horizontal air extraction module horizontally provided at the left end of the mounting frame 105, a vertical air extraction module vertically provided at the bottom of the mounting frame 105, a vacuum pump 106 provided at the top of the base 101, a tee 107 provided at the intake end of the vacuum pump 106, a first air guiding module provided between the tee 107 and the horizontal air extraction module, and a second air guiding module provided between the tee 107 and the vertical air extraction module. As Figure 4 、 5 A reinforcing rod 110 is further provided between the horizontal part and the vertical part of the mounting frame 102. Through the reinforcing rod 110, the firmness of the mounting frame 102 can be enhanced.

[0018] As Figure 1 shown, the horizontal air extraction module includes a second telescopic push rod 201 horizontally provided at the left end of the mounting frame 105, a horizontal air extraction pipe 202 provided at the end of the output shaft of the second telescopic push rod 201, and a first pipe joint 203 provided on the horizontal air extraction pipe 202 and used to connect with the air outlet pipe of the storage tank; As Figure 1 、 3 、4 shown, the first air guiding module includes a receiving pipe 204 horizontally penetrating the mounting frame 105, a connecting hose 205 provided between the receiving pipe 204 and the horizontal air extraction pipe 202, a first control valve 206 provided on the top right interface of the tee 107, and a first air guiding hose 207 provided between the receiving pipe 204 and the top right interface of the tee 107. Through the cooperation of the horizontal air extraction pipe 202, the receiving pipe 204, the receiving hose, the first control valve 206, the first air guiding pipe, and the vacuum pump 106, the vacuum pumping treatment of the horizontally arranged storage tank can be conveniently carried out.

[0019] As Figure 1As shown in the figure, the vertical air extraction module includes a vertical air extraction pipe 301 vertically arranged at the bottom of the installation frame 105 and a second pipe joint 302 arranged on the vertical air extraction pipe 301 and used to connect with the air outlet pipe of the storage tank; the second air guiding module includes a second control valve 303 vertically arranged on the top left interface of the tee 107 and a second air guiding hose 304 arranged between the vertical air extraction pipe 301 and the top left interface of the tee 107.

[0020] As Figure 1 shown in the figure, the walking support module includes support legs 108 arranged at the bottom corners of the base 101 and walking wheels 109 arranged at the bottoms of the support legs 108; the walking wheels 109 are universal wheels with wheel brakes.

[0021] The device can be moved to a suitable position quickly and labor - savingly through the cooperation of the support legs 108 and the walking wheels 109. Then, the wheel brakes of the walking wheels 109 can be locked to prevent the device from shifting easily; after that, the storage tank can be evacuated.

[0022] If the storage tank is a horizontally arranged one, the opening direction of the mounting frame 102 can be made to match the air outlet pipe at the side end of the horizontal storage tank. Then, the slide seat of the linear slide 103 can be moved so that the horizontal air extraction pipe 202 moves to the upper side of the air outlet pipe at the side end of the horizontal storage tank. Then, the output shaft of the first telescopic push rod 104 can be extended downward by a certain length so that the vertical position of the first pipe joint 203 matches the air outlet pipe of the storage tank. Then, the output shaft of the second telescopic push rod 201 can be extended by a certain length so that the first pipe joint 203 moves to the side end of the air outlet pipe of the horizontal storage tank. Then, the air outlet pipe at the side end of the horizontal storage tank and the first air extraction pipe can be connected together by using the first pipe joint 203 through threaded connection. Then, the first control valve 206 can be opened and the vacuum pump 106 can be started. Through the cooperation of the air outlet pipe at the top of the horizontal storage tank, the first pipe joint 203, the horizontal air extraction pipe 202, and the first air guiding pipe, the air in the vertical storage tank can be pumped out, thus evacuating the horizontal storage tank.

[0023] After a period of time, after the evacuation of the horizontal storage tank is completed, the first control valve 206 can be closed, the vacuum pump 106 can be paused, and the connection between the first pipe joint 203 and the air outlet pipe at the top of the vertical storage tank can be released. Then, the device can be moved away through the cooperation of the support legs 108 and the walking wheels 109 to evacuate the remaining storage tanks.

[0024] If the storage tank is a vertically arranged storage tank, the slider of the linear slide 103 can be moved to move the vertical air extraction pipe 301 above the air outlet pipe at the top of the vertical storage tank. Then, the output shaft of the first telescopic push rod 104 can be extended downward by a certain length to make the vertical position of the second pipe joint 302 match the air outlet pipe of the storage tank. Then, the air outlet pipe at the top of the vertical storage tank and the second air extraction pipe can be connected together by using the second pipe joint 302 in a threaded connection manner. Then, the second control valve 303 can be opened and the vacuum pump 106 can be started. Through the cooperation of the air outlet pipe at the top of the vertical storage tank, the second pipe joint 302, the vertical air extraction pipe 301, and the second air guide pipe, the air in the vertical storage tank can be extracted, so as to perform vacuum treatment on the vertical storage tank.

[0025] After a period of time, after the vacuum treatment of the vertical storage tank is completed, the second control valve 303 can be closed, the vacuum pump 106 can be paused, and the connection between the second pipe joint 302 and the air outlet pipe at the top of the vertical storage tank can be released. Then, through the cooperation of the support legs 108 and the walking wheels 109, the device can be moved away to perform vacuum treatment on the remaining storage tanks.

[0026] In another embodiment, as Figure 5 shown, a push rod 111 is further provided at the side end of the mounting frame 102, and an anti-slip sleeve 112 is further provided on the push rod 111. Through the push rod 111, it can cooperate with the support legs 108 and the walking wheels 109 to move the device more conveniently; through the anti-slip sleeve 112, the push rod 111 can be operated conveniently.

[0027] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum pumping device for a cryogenic adiabatic liquid storage tank, characterized in that: It includes a base (101), a walking support module arranged at the bottom of the base (101), an L-shaped mounting frame (102) arranged at the top of the base (101) in the left-right direction with an opening facing left, a linear slide (103) arranged at the bottom wall of the top of the mounting frame (102) and running in the left-right direction, a first telescopic push rod (104) vertically arranged at the bottom of the slide of the linear slide (103), a mounting frame (105) arranged at the bottom of the output shaft of the first telescopic push rod (104), a horizontal air extraction module arranged at the left end of the mounting frame (105) horizontally, a vertical air extraction module vertically arranged at the bottom of the mounting frame (105), a vacuum pump (106) arranged at the top of the base (101), a tee (107) arranged at the intake end of the vacuum pump (106), a first air guiding module arranged between the tee (107) and the horizontal air extraction module, and a second air guiding module arranged between the tee (107) and the vertical air extraction module; The horizontal air extraction module includes a second telescopic push rod (201) horizontally arranged at the left end of the mounting frame (105), a horizontal air extraction pipe (202) arranged at the end of the output shaft of the second telescopic push rod (201), and a first pipe joint (203) arranged on the horizontal air extraction pipe (202) and used to connect with the outlet pipe of the storage tank; The vertical air extraction module includes a vertical air extraction pipe (301) vertically arranged at the bottom of the mounting frame (105), and a second pipe joint (302) arranged on the vertical air extraction pipe (301) and used to connect with the outlet pipe of the storage tank; The first air guiding module includes a receiving pipe (204) horizontally penetrating the mounting frame (105), a connecting hose (205) arranged between the receiving pipe (204) and the horizontal air extraction pipe (202), a first control valve (206) arranged on the top right interface of the tee (107), and a first air guiding hose (207) arranged between the receiving pipe (204) and the top right interface of the tee (107); The second air guiding module includes a second control valve (303) vertically arranged on the top left interface of the tee (107), and a second air guiding hose (304) arranged between the vertical air extraction pipe (301) and the top left interface of the tee (107).

2. The vacuum pumping device for a cryogenic adiabatic liquid storage tank according to claim 1, wherein: The walking support module includes support legs (108) arranged at the corners of the bottom of the base (101), and walking wheels (109) arranged at the bottoms of the support legs (108).

3. The vacuum pumping device for a cryogenic adiabatic liquid storage tank according to claim 2, characterized in that: The walking wheels (109) are universal wheels with wheel brakes.

4. The vacuum pumping device for cryogenic adiabatic liquid storage tank according to claim 2 or 3, characterized in that: A reinforcing rod (110) is further arranged between the horizontal part and the vertical part of the mounting frame (102).

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