CN209801155U

CN209801155U - Liquid flushing device

Info

Publication number: CN209801155U
Application number: CN201920035475.2U
Authority: CN
Inventors: 刘建
Original assignee: Wuhan Zhongalcohol Chemical Technology Co Ltd
Current assignee: Wuhan Zhongalcohol Chemical Technology Co Ltd
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2019-12-17
Anticipated expiration: 2029-01-09

Abstract

The utility model discloses a liquid flushing device, which comprises a cryogenic liquid pump and a connecting mechanism, wherein the input end of the cryogenic liquid pump is communicated with a liquid storage tank, the left end and the right end of the connecting mechanism are respectively communicated with the output end of the cryogenic liquid pump and the bottom inlet of a welding heat insulation gas cylinder through vacuum heat insulation pipes, the left end and the right end of the connecting mechanism are symmetrically provided with connecting bayonets, and a one-way valve I and a stop valve I are arranged on the vacuum heat insulation pipe between the connecting bayonets and the cryogenic liquid pump on the left side; use cryogenic liquid pump and adiabatic gas cylinder of welding to carry out dashing dress of liquefied gas, not only improved efficiency and reduced the liquefied gas and avoided the wasting of resources that the gasification caused because of the temperature risees, set up the check valve on the pipeline and avoid and stop valve, not only avoid dashing the backward flow phenomenon of dress process, effectively avoid dashing the environmental pollution that the dress process led to the fact because of leaking moreover, not only improved and dashed dress process liquid purity, reduced the wasting of resources moreover, improved the utilization ratio.

Description

Liquid flushing device

Technical Field

the utility model belongs to the technical field of liquid dashes to adorn, concretely relates to liquid dashes to adorn device.

Background

With the continuous and deep application of gas liquefaction in the fields of industrial production and the like, liquefied gas plays an irreplaceable role in production, processing and the like, but leakage and other problems are easy to occur when the liquefied gas is stored and canned. At present, most of liquefied gas directly rushes into the transportation tank through the pipeline, so when connecting the pipeline, the air in the pipeline can be rushed into the two purities that influence the liquefied gas of the transportation tank, and simultaneously, when the transportation tank is full, the liquefied gas in the pipeline can be released in the air, not only causes pollution to the environment but also causes resource waste. In view of the above, there is a need for a liquid flushing device that reduces resource waste during flushing and improves liquid purity during flushing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a liquid punching device, which punches liquefied gas to a welding heat insulation gas cylinder along a vacuum heat insulation pipe through a cryogenic liquid pump, arranges a check valve on the vacuum heat insulation pipe to avoid backflow, arranges a stop valve to avoid leakage, and recovers gasified gas in the welding heat insulation gas cylinder into a buffer tank; set up coupling mechanism simultaneously, carry out the pipeline evacuation before dashing the dress, guarantee to dash to adorn the liquid and do not mix any foreign gas, take out the residual gas in the pipeline into the buffer tank after dashing to adorn and finish, avoid gas leakage contaminated air, reduced the wasting of resources moreover, improve utilization ratio to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a liquid flushing device comprises a cryogenic liquid pump and a connecting mechanism, wherein the input end of the cryogenic liquid pump is communicated with a liquid storage tank, the left end and the right end of the connecting mechanism are respectively communicated with the output end of the low-temperature liquid pump and the bottom inlet of the welding heat-insulating gas cylinder through vacuum heat-insulating pipes, the left end part and the right end part of the connecting mechanism are symmetrically provided with connecting bayonets, a one-way valve I and a stop valve I are arranged on a vacuum heat-insulating pipe between the connecting bayonets on the left side and the low-temperature liquid pump, the connecting mechanism is provided with an upper outlet and a lower outlet which are respectively communicated with the input ends of the first vacuum pump and the second vacuum pump through hoses, the output end of the first vacuum pump is communicated with the inlet of the second one-way valve through a hose, the outlet of the second one-way valve is communicated with the first inlet of the buffer tank through a hose, and a third outlet of the sealing valve at the top of the welding heat-insulation gas cylinder is communicated with a second inlet of the buffer tank through a hose.

Preferably, the first check valve and the first stop valve are respectively communicated with the vacuum insulation pipe, and the first check valve is arranged on one side of the low-temperature liquid pump.

Preferably, the connecting mechanism comprises a box body, a first sealing valve and a second sealing valve are respectively arranged at the upper outlet and the lower outlet of the box body, connecting bayonet structures at the left end and the right end of the box body are the same, a groove structure is arranged on the connecting bayonet, the groove structure is in clearance fit with a port of the vacuum heat-insulating pipe at the corresponding position, a bulge is arranged on the outer side of the end part of the connecting bayonet, the bulge is in clearance fit with the inner wall of the special nut, and a sealing ring is arranged in the groove structure.

preferably, the special nut is sleeved on the outer side of the connecting bayonet, a protruding structure is arranged on the inner wall of the end part of one side of the special nut, the protruding structure is in clearance fit with the outer wall of the connecting bayonet, and the special nut is in threaded connection with an external thread structure on the outer wall of the port of the vacuum heat-insulating pipe at the corresponding position.

Preferably, a second stop valve is installed on a hose between an outlet of the second check valve and the buffer tank, a third stop valve is arranged at the outlet of the buffer tank, and a pipeline on the right side of the third stop valve is communicated with an inlet of the compressor.

Preferably, a fifth stop valve is arranged at an inlet at the bottom of the welding heat-insulation gas cylinder, and a fourth stop valve is arranged on a hose between an outlet of the third seal valve and the buffer tank.

Compared with the prior art, the beneficial effects of the utility model are that:

1. The liquefied gas is filled by using the low-temperature liquid pump and the welded heat-insulating gas cylinder, so that the efficiency is improved, and the resource waste caused by the gasification of the liquefied gas due to the temperature rise is reduced;

2. The pipeline is provided with the check valve and the stop valve, so that the backflow phenomenon in the flushing process is avoided, and the environmental pollution caused by leakage in the flushing process is effectively avoided;

3. The connecting device is arranged, so that the purity of liquid in the flushing process is improved, the resource waste is reduced, and the utilization rate is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

Fig. 2 is a schematic view of the connection mechanism of the present invention;

Fig. 3 is a schematic view of the connection bayonet of the present invention.

In the figure: 1. a cryogenic liquid pump; 2. a vacuum heat-insulating pipe; 3. a one-way valve I; 4. a first stop valve; 5. a connecting mechanism; 50. a box body; 51. an upper outlet; 511. a first sealing valve; 52. a lower outlet; 521. a second sealing valve; 53. a connecting bayonet; 531. a groove structure; 54. a special nut; 55. a seal ring; 6. welding a heat-insulating gas cylinder; 61. a third sealing valve; 62. a stop valve IV; 63. a fifth stop valve; 7. a first vacuum pump; 8. a vacuum pump II; 9. a second one-way valve; 10. a second stop valve; 11. a buffer tank; 12. and a third stop valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a liquid dashes and adorns device, including cryogenic liquid pump 1 and coupling mechanism 5, the input of cryogenic liquid pump 1 and liquid storage jar intercommunication, coupling mechanism 5 the left and right ends respectively through the vacuum heat-insulating pipe 2 with the output of cryogenic liquid pump 1 and the bottom entry intercommunication of welding adiabatic gas cylinder 6, coupling mechanism 5 the left and right ends symmetry is equipped with connection bayonet 53, be equipped with check valve 3 and stop valve 4 on the vacuum heat-insulating pipe 2 between left side connection bayonet 53 and cryogenic liquid pump 1, coupling mechanism 5 is equipped with upper outlet 51 and lower outlet 52, upper outlet 51 and lower outlet 52 pass through the hose respectively with the input intercommunication of vacuum pump 7 and vacuum pump two 8, the output of vacuum pump one 7 passes through the hose and communicates with the entry of check valve two 9, the export of check valve two 9 passes through the hose and communicates with the first entry of buffer tank 11, the export of three 61 of welding adiabatic gas cylinder 6 top passes through the hose and communicates with the second entry of buffer tank 11.

Specifically, check valve 3 and stop valve 4 communicate with vacuum insulation pipe 2 respectively, and check valve 3 is installed in one side of being partial to cryogenic liquids pump 1, and liquid backward flow has effectively been avoided to check valve 3, and control to vacuum insulation pipe 2 when stop valve 4 is convenient for dash dress liquid has avoided dashing when adorning the end simultaneously liquid leakage.

Specifically, the connecting mechanism 5 includes a box 50, a first sealing valve 511 and a second sealing valve 521 are respectively disposed at an upper outlet 51 and a lower outlet 52 of the box 50, connecting bayonets 53 at left and right ends of the box 50 have the same structure, a groove structure 531 is disposed on the connecting bayonets 53, the groove structure 531 is in clearance fit with the ports of the vacuum heat-insulating pipes 2 at corresponding positions, a protrusion is disposed on an outer side of an end of the connecting bayonets 53, the protrusion is in clearance fit with an inner wall of a special nut 54, a sealing ring 55 is disposed in the groove structure 531, the box 50 is made of a vacuum heat-insulating plate, the heat-insulating effect is good, liquid gasification in the filling process is avoided, and.

Specifically, special nut 54 is equipped with to connect bayonet 53's outside cover, is equipped with protruding structure on the inner wall of special nut 54 side tip, protruding structure and bayonet 53's outer wall clearance fit, and special nut 54 improves sealed steadiness with the external screw thread structure threaded connection on the vacuum insulation pipe 2 port position outer wall that corresponds the position, avoids the pine to take off and leads to dashing to adorn liquid leakage and cause environmental pollution and wasting of resources.

Specifically, a second stop valve 10 is mounted on a hose between an outlet of the second check valve 9 and a buffer tank 11, a third stop valve 12 is arranged at the outlet of the buffer tank 11, and a pipeline on the right side of the third stop valve 12 is communicated with an inlet of the compressor; the second check valve 9 prevents the recycled gasified liquid from flowing back, the second stop valve 10 prevents the recycled gas in the buffer tank 11 from flowing back to the pipeline, and the third stop valve 12 can conveniently control the communication and the closing between the buffer tank 11 and the compressor.

Specifically, a fifth stop valve 63 is arranged at an inlet at the bottom of the welding heat-insulation gas cylinder 6, and a fourth stop valve 62 is arranged on a hose between an outlet of the third seal valve 61 and the buffer tank 11; the third sealing valve 61 has a sealing and locking effect after the welded heat-insulating gas cylinder 6 is filled, the fifth stop valve 63 can conveniently control the communication and the closing between the welded heat-insulating gas cylinder 6 and the low-temperature liquid pump 1, and the fourth stop valve 62 prevents the gas recovered in the buffer tank 11 from flowing back to the pipeline.

The working principle is as follows: during filling, closing the first stop valve 4 and the third stop valve 12, simultaneously opening the first seal valve 511, the second seal valve 521, the fifth stop valve 63, the second stop valve 10 and the fourth stop valve 62, starting the second vacuum pump 8 to discharge impurities such as air in the whole device and a pipeline, and avoiding pollution caused by mixing with filling liquid, after the vacuumizing operation is completed, closing the first seal valve 511, the second seal valve 521 and the third stop valve 12, simultaneously opening the first stop valve 4, the fifth stop valve 63, the fourth stop valve 62 and the second stop valve 10, starting the cryogenic liquid pump 1 to fill liquid in a liquid storage tank into the welding heat-insulating gas cylinder 6 through the vacuum heat-insulating pipe 2, during filling, along with the increase of the pressure in the welding heat-insulating gas cylinder 6, avoiding backflow of the liquid through the first check valve 3, simultaneously extruding the gasified liquid out along a hose at the top of the welding heat-insulating gas cylinder 6 into the buffer tank 11, and after filling is completed, simultaneously closing the first stop valve 4, the fifth stop valve 63 and the fourth stop valve 62, then closing and locking the third seal valve 61, and pulling out the hose on the third seal valve;

and finally, starting the first vacuum pump 7, simultaneously opening the first sealing valve 511 and the second stop valve 10, gasifying the liquid in the box body 50, pumping the gasified liquid into the buffer tank 11, simultaneously enabling the second check valve 9 to play a good backflow prevention effect, after the liquid is pumped out, closing the second stop valve 10, starting a compressor communicated with the buffer tank 11, compressing, liquefying and recycling the recovered gas in the buffer tank 11, and avoiding environmental pollution while improving the utilization rate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a liquid dashes dress device, includes cryogenic liquids pump (1) and coupling mechanism (5), its characterized in that: the input end of the low-temperature liquid pump (1) is communicated with a liquid storage tank, the left end and the right end of the connecting mechanism (5) are communicated with the output end of the low-temperature liquid pump (1) and the bottom inlet of the welding heat insulation gas cylinder (6) through a vacuum heat insulation pipe (2) respectively, the left end and the right end of the connecting mechanism (5) are symmetrically provided with connecting bayonets (53), the left side is provided with a one-way valve I (3) and a stop valve I (4) on the vacuum pipe (2) between the connecting bayonets (53) and the low-temperature liquid pump (1), the connecting mechanism (5) is provided with an upper outlet (51) and a lower outlet (52), the upper outlet (51) and the lower outlet (52) are communicated with the input ends of a vacuum pump I (7) and a vacuum pump II (8) through hoses respectively, the output end of the vacuum pump I (7) is communicated with the, the outlet of the second check valve (9) is communicated with the first inlet of the buffer tank (11) through a hose, and the outlet of the third seal valve (61) at the top of the welding heat-insulation gas cylinder (6) is communicated with the second inlet of the buffer tank (11) through a hose.

2. A liquid flushing device according to claim 1, characterized in that: the one-way valve I (3) and the stop valve I (4) are respectively communicated with the vacuum heat-insulating pipe (2), and the one-way valve I (3) is installed on one side of the deflection cryogenic liquid pump (1).

3. A liquid flushing device according to claim 1, characterized in that: coupling mechanism (5) are including box (50), last export (51) of box (50) and export (52) position down are equipped with seal valve (511) and seal valve two (521) respectively, connection bayonet socket (53) the structure at both ends is the same about box (50), be equipped with groove structure (531) on connection bayonet socket (53), groove structure (531) and the adiabatic pipe (2) port clearance fit in vacuum that corresponds the position, the tip outside of connecting bayonet socket (53) is equipped with the arch, the inner wall clearance fit of arch and special nut (54), install sealing washer (55) in groove structure (531).

4. a liquid flushing device according to claim 3, characterized in that: the vacuum heat insulation pipe is characterized in that a special nut (54) is sleeved on the outer side of the connecting bayonet (53), a protruding structure is arranged on the inner wall of the end part of one side of the special nut (54), the protruding structure is in clearance fit with the outer wall of the connecting bayonet (53), and the special nut (54) is in threaded connection with an external thread structure on the outer wall of the port of the vacuum heat insulation pipe (2) at the corresponding position.

5. A liquid flushing device according to claim 1, characterized in that: and a second stop valve (10) is installed on a hose between the outlet of the second check valve (9) and the buffer tank (11), a third stop valve (12) is arranged at the outlet of the buffer tank (11), and a pipeline on the right side of the third stop valve (12) is communicated with an inlet of the compressor.

6. a liquid flushing device according to claim 1, characterized in that: and a fifth stop valve (63) is arranged at an inlet at the bottom of the welding heat-insulation gas cylinder (6), and a fourth stop valve (62) is arranged on a hose between an outlet of the third seal valve (61) and the buffer tank (11).