CN210035051U - LNG liquid feeding machine - Google Patents
LNG liquid feeding machine Download PDFInfo
- Publication number
- CN210035051U CN210035051U CN201920744127.2U CN201920744127U CN210035051U CN 210035051 U CN210035051 U CN 210035051U CN 201920744127 U CN201920744127 U CN 201920744127U CN 210035051 U CN210035051 U CN 210035051U
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- Prior art keywords
- purging
- gun head
- lng
- placing
- gun
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- 239000007788 liquid Substances 0.000 title claims abstract description 75
- 238000010926 purge Methods 0.000 claims abstract description 154
- 238000007664 blowing Methods 0.000 claims description 29
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 1
- 239000003818 cinder Substances 0.000 abstract description 2
- 239000003949 liquefied natural gas Substances 0.000 description 38
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000010408 sweeping Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000011017 operating method Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000001034 Frostbite Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Abstract
The utility model provides a LNG liquid feeding machine. The device comprises a gun head placing cylinder embedded on a machine shell and a purging assembly arranged in the machine shell. The gun head placing barrel is provided with a placing cavity which is matched with the gun head of the liquid adding gun. Wherein, the purging pipe is communicated with the placing cavity. The purging switch is used for sensing whether the gun head is placed in the placing cavity or not, and when the gun head is placed in the placing cavity, the purging switch controls the purging control valve to conduct the purging pipe. The purging switch can replace manual switch operation of workers, and the advantage of automatic purging operation is reflected. So, the plug and play that the above-mentioned subassembly that sweeps can realize LNG liquid feeding rifle blows promptly, and degree of automation is high, has avoided not in time being swept the damage that the ice cinder that blows caused to the liquid feeding rifle, has guaranteed the security that the liquid feeding rifle used.
Description
Technical Field
The utility model relates to a cryogenic liquids equipment technical field, in particular to LNG liquid feeding machine.
Background
An LNG liquid adding machine is arranged in a Liquefied natural Gas (hereinafter referred to as LNG) Gas station. The staff can operate the liquid filling rifle of LNG liquid filling machine and annotate LNG natural gas fuel to the vehicle.
The outer surface of the LNG liquid adding gun can frost due to the fact that low-temperature media flow in the filling process, and after the filling is finished, condensed water after frost is integrated into ice slag. Before the liquid adding gun is operated every time, a special purging device is used for purging the liquid adding gun. However, when the vehicle needs to be filled frequently, in order to facilitate filling and save time, workers often directly place the filling gun on the ground or place the filling gun on a simple support beside the vehicle after filling each time. The existing purging device needs a plurality of operation steps, and the purging time of a worker is short, so that the worker cannot reach the purging device or easily neglects the purging operation of the liquid filling gun, and the next filling operation is directly performed. And because sundries such as ice slag in the liquid adding gun are not removed in time, the ice slag can influence the normal use of the liquid adding gun when the liquid is added again.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a LNG liquid feeding machine to solve among the prior art influence normal use that debris such as the ice cinder that are not in time swept and handled caused the LNG liquid feeding rifle and damage the problem even.
In order to solve the technical problem, the utility model adopts the following technical scheme:
an LNG liquid adding machine comprises a machine shell and a liquid adding gun arranged on the machine shell; the LNG liquid adding machine also comprises a gun head placing cylinder embedded on the shell and a purging assembly arranged in the shell; the gun head placing cylinder is provided with a placing cavity which is adaptive to and accommodates the gun head of the liquid adding gun; the placing cavity is exposed out of an opening at one end of the casing for the gun head to be inserted, and an opening at the other end of the placing cavity in the casing is an air blowing port; the purging assembly comprises a purging pipe, a purging control valve and a purging switch; the blowing pipe is correspondingly arranged at the blowing port; the purging pipe is communicated with the placing cavity so as to be aligned with the gun head; the purging control valve is arranged on the purging pipe and used for controlling the on-off of the purging pipe; the purging switch is electrically connected with the purging control valve and used for sensing whether the gun head is placed in the placing cavity or not; when the gun head is plugged into the placing cavity, the purging switch controls the purging control valve to act, so that the purging pipe is conducted.
According to an embodiment of the present invention, the purge switch is a proximity switch.
According to the utility model discloses an embodiment, the switch that sweeps is close to and locates gas blowing opening department.
According to the utility model discloses an embodiment, the purge control valve is the solenoid valve.
According to an embodiment of the present invention, the purge assembly further comprises a controller; the controller is respectively electrically connected with the purging switch and the purging control valve.
According to an embodiment of the present invention, the purge assembly further comprises a filter pressure reducing valve; the filtering pressure reducing valve is arranged on the purging pipe.
According to one embodiment of the utility model, a placing platform for installing and fixing the gun head placing cylinder is formed at the lower part of the machine shell; the placing table is provided with an inclined plane which is inclined downwards, and the inclined plane is provided with an installation opening matched with the gun head placing barrel; the gun head placing cylinder can extend into the casing through the mounting opening, and the gun head placing cylinder is exposed out of the outer end face of the opening of the casing and is parallel to the inclined plane.
According to one embodiment of the utility model, a flange is annularly arranged at one opening end of the gun head placing cylinder; the diameter of the flange is larger than that of the mounting opening; when the gun head placing cylinder is clamped at the mounting opening, the flange protrudes out of the inclined plane, and the inner end face of the flange facing the inside of the shell is attached to the inclined plane.
According to one embodiment of the utility model, the end of the gun head placing cylinder with the air blowing opening is also provided with a bulge; the air blowing port penetrates through the bulge; the blowing pipe can be sleeved on the bulge through a matched fastener to be communicated with the blowing port.
According to an embodiment of the utility model, a section of thick bamboo is placed to rifle head is a polytetrafluoroethylene section of thick bamboo.
According to the above technical scheme, the utility model provides a pair of LNG liquid feeding machine has following advantage and positive effect at least:
this LNG liquid feeding machine has set up the rifle head of relative complex and has placed a section of thick bamboo and sweep the subassembly, has realized automation, high efficiency, safety to the sweeping operation of liquid feeding rifle. The LNG liquid feeding gun comprises a gun head placing barrel, a sweeping pipe and a sweeping component, wherein the gun head placing barrel provides an adaptive placing cavity for the LNG liquid feeding gun head, and the sweeping pipe in the sweeping component is communicated with the placing cavity to form a sweeping channel for sweeping the gun head. Furthermore, the purging switch can sense the position of the gun head, namely sense whether the gun head is inserted into the placing cavity or not and then control the purging control valve to realize corresponding action. Specifically, when the purging switch senses that the gun head is inserted into the placing cavity, the purging switch controls the purging control valve to be opened, and the purging pipe is conducted to purge the gun head immediately. The purging switch can replace manual switch operation of workers, and the advantage of automatic purging operation is reflected. So, the plug and play that the aforesaid sweeps the subassembly can realize LNG liquid feeding rifle blows promptly, and degree of automation is high, need not other unnecessary operating procedure, and labour saving and time saving has fundamentally eliminated the staff and has carelessly swept the possibility that the circumstances such as blowing takes place, has avoided the damage that debris such as the ice sediment that is not in time swept and has caused the liquid feeding rifle, has guaranteed the security that the liquid feeding rifle used. Meanwhile, the sweeping and blowing assembly with high automation degree can bring a safe and efficient working environment for the working personnel of LNG filling, and the working efficiency is effectively improved.
Drawings
Fig. 1 is the utility model discloses in embodiment LNG liquid feeding machine's schematic structure diagram.
Fig. 2 is a schematic structural diagram of a gun head placing barrel in the embodiment of the present invention.
Fig. 3 is a sectional view of a gun head placing cylinder in the embodiment of the present invention.
Fig. 4 is the embodiment of the utility model provides a be located the inside structural schematic diagram of sweeping the subassembly of LNG liquid feeding machine.
Fig. 5 is a connection block diagram of the purge component according to the embodiment of the present invention.
The reference numerals are explained below: 100-LNG liquid adding machine, 101-machine shell, 102-placing platform, 103-inclined plane, 104-mounting port, 1-gun head placing cylinder, 11-placing cavity, 12-inserting port, 13-blowing port, 14-flange, 15-bulge, 2-purging component, 22-purging pipe, 23-purging switch, 24-purging control valve, 25-controller, 26-filtering pressure reducing valve, 3-liquid adding gun and 31-gun head.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.
The LNG liquid adding machine in the related art has the following defects:
first, the filling gun must be purged prior to the filling operation. However, when the filling is frequent, the existing purging device needs more operation steps, and the time for purging the worker is short, so that the worker is occupied or easily cares about the purging operation.
Then, the liquid filling gun needs to insert special liquid filling gun seat after the filling is finished, the operation is more complicated and inconvenient, and the friction times of a sealing ring of the liquid filling gun are increased. Because the service life of the sealing ring and the gasket of the liquid filling gun is calculated by times, frequent friction easily causes the damage of the sealing ring of the liquid filling gun, thereby causing the risk of LNG leakage in the filling process, also causing the frequent replacement of the sealing ring of the liquid filling gun and increasing the maintenance cost. Therefore, when the vehicles need frequent filling, in order to facilitate filling, the plugging times of the liquid filling gun are reduced as much as possible, and workers often directly lay the liquid filling gun on the ground or lay the liquid filling gun on a simple support beside the liquid filling gun after filling is finished each time. The placing behaviors can cause the liquid adding gun to be easily knocked down and trampled by people, and once the gun body structure of the liquid adding gun is damaged, LNG (liquefied natural gas) in the gun leaks, so that major safety accidents such as personnel frostbite and explosion can be caused.
In order to solve the technical problems of the related art, please refer to fig. 1 to 5 together, and this embodiment provides an LNG charger 100 with an improved structure.
The LNG liquid adding machine 100 is specially designed with a purging component 2 for automatically purging a liquid adding gun 3 and a gun head placing barrel 1 for placing the liquid adding gun 3. Wherein, the gun head placing barrel 1 provides an adaptive placing cavity 11 for the gun head 31 of the liquid adding gun 3. And the purging pipe 22 in the purging assembly 2 is communicated with the placing cavity 11, and the purging pipe 22 and the placing cavity 11 together form a purging channel for purging the gun head 31.
Referring specifically to fig. 1, an LNG dispenser 100 has a housing 101 with a similar rectangular profile.
An LNG liquid feeding gun 3 is arranged on the upper portion of one side of the casing 101, a gun head placing barrel 1 is arranged under the LNG liquid feeding gun 3 on the casing 101, and a purging pipe 22 is arranged in the part, opposite to the gun head placing barrel 1, in the casing 101.
Gun head placing cylinder 1 is specially used for placing gun head 31, and aims to align a liquid outlet on gun head 31 with purge pipe 22 so that gun head 31 can be purged accurately and efficiently while reducing or avoiding damage to a seal ring at gun head 31.
The gun head placing barrel 1 is provided with a hollow placing cavity 11 along the axis. The size of the placing cavity 11 is matched with the size of the gun head 31, so that the gun head 31 can be completely accommodated and fixed. As shown in fig. 2, when the lance tip placing cylinder 1 is obliquely embedded in the casing 101, an end opening of the placing cavity 11 exposed out of the casing 101 is used for inserting the lance tip 31, and the end opening is an insertion opening 12. And the other end of the placing cavity 11, which is positioned in the machine shell 101, is opened with an air blowing port 13, and the air blowing port 13 is opposite to and communicated with the purging pipe 22.
In order to facilitate the insertion of the lance tip 31 into the lance tip placement barrel 1, a placement table 102 for mounting and fixing the lance tip placement barrel 1 is further formed at the lower portion of the housing 101.
Specifically, the placing table 102 has a downward inclined surface 103, and the inclined surface 103 is provided with an installation opening 104 adapted to the lance tip placing barrel 1.
In this way, the lance tip placement barrel 1 is inserted into the housing 101 through the mounting opening 104 and is mounted on the placement platform 102, and the outer end surface of the lance tip placement barrel 1 exposed out of the insertion opening 12 of the housing 101 is parallel to the inclined surface 103. The insertion opening 12 is also inclined toward the worker. Due to the consideration of human mechanics, the insertion opening 12 is more beneficial to the insertion operation of workers compared with a vertical or horizontal insertion structure, namely, the workers can be inserted more smoothly, and the operation experience of the workers is improved.
With further reference to fig. 2 and 3, the lance tip placement barrel 1 is provided with a flange 14 around the outer circumference of the insertion opening 12. The diameter of the flange 14 is larger than that of the mounting opening 104, and the flange serves to fix the lance tip placement barrel 1 to the inclined surface 103. When the lance tip placement barrel 1 is clamped in the mounting opening 104, the flange 14 protrudes from the inclined surface 103, and an inner end surface of the flange 14 facing the inside of the casing 101 is attached to the inclined surface 103.
And the other end part of the gun head placing cylinder 1, which is provided with the air blowing port 13, is provided with a bulge 15, and the air blowing port 13 penetrates through the bulge 15. The protrusion 15 is fixed to the purge pipe 22. The diameter of the projection 15 is much smaller than the diameter of the insertion opening 12; the diameter of the bulge 15 is approximately matched with the pipe diameter of the purging pipe 22 correspondingly, so that the purging pipe 22 can be sleeved on the bulge 15 through a matched fastening piece to be communicated with the air blowing opening 13 correspondingly.
In this embodiment, the gun head placing cylinder 1 is made of polytetrafluoroethylene. The polytetrafluoroethylene is acid-resistant, alkali-resistant and various organic solvents-resistant, has an extremely low friction coefficient and can be used for lubrication. Therefore, the gun head placing barrel 1 made of polytetrafluoroethylene cannot generate sparks when being contacted with the liquid adding gun 3 made of metal, and meanwhile, the abrasion to the liquid adding gun 3 can be reduced. In other embodiments, the material of the lance tip placing barrel 1 may also be other high molecular materials with low friction coefficient.
Referring specifically to fig. 4, the purge assembly 2 disposed in the casing 101 includes a purge pipe 22, a purge switch 23, a purge control valve 24, a controller 25, and a filtering pressure reducing valve 26. Wherein, the manual switch operation of staff has mainly been replaced by purge switch 23, has realized automatic purge operation.
In this embodiment, an air compressor is used as the source of the blowing air for the purge module 2. The air compressor is located outside the housing 101, and is specifically disposed in an air compressor room of the LNG refueling station. The air outlet of the air compressor communicates with the purge tube 22 through a conduit to charge the setting chamber 11 and purge the lance tip 31.
Further, a filtering and pressure reducing valve 26 is provided on the purge pipe 22. And the purpose of filter and pressure reducing valve 26 is to filter solid particles and water from the compressed air and to regulate the gas pressure in the pipeline.
Please refer to the connection block diagram of fig. 5. The controller 25 is electrically connected to the purge switch 23 and the purge control valve 24, respectively.
Wherein, the purge switch 23 is used for sensing whether the gun head 31 is placed in the placing cavity 11. In this embodiment, the purge switch 23 is a proximity switch. The proximity switch has a sensing range for sensing the position of the lance head 31, i.e. sensing whether the lance head 31 is inserted into the placing cavity 11, and controlling the opening and closing of the purge control valve 24 according to the sensed result, thereby controlling the on-off of the purge pipe 22. When the purge switch 23 senses that the gun head 31 is actually placed in the placing chamber 11, a purge signal for purging the gun head 31 is sent to the controller 25.
So, blow switch 23 and can realize blowing promptly of inserting of LNG liquid feeding rifle 3, degree of automation is high, need not other unnecessary operating procedure, labour saving and time saving. In other embodiments, the purge switch 23 may be other sensors with sensing range to achieve an automatic purge function.
Preferably, the purge switch 23 is disposed close to the air blowing opening 13, so as to improve the sensing accuracy. Thus, when the gun head 31 is inserted into the placing cavity 11 and abuts against the blowing port, the gun head 31 can be considered to be in place at this time, and the purging switch 23 senses that the gun head 31 is in place and sends out the purging signal, so that the problem that the purging effect is not good due to the fact that the purging signal is sent out by the purging switch 23 when the gun head 31 slides in the placing cavity 31 and is not in place successfully is solved.
The purge control valve 24 is electrically connected to the purge switch 23. In the present embodiment, the purge control valve 24 is a solenoid valve. The electromagnetic valve is arranged on the purging pipe 22 and is used for opening or blocking the purging pipe 22. That is, the solenoid valve is an actuator for turning on and off the purge pipe 22, and the purge switch 23 is a switch element for turning on and off the purge pipe 22.
The controller 25 is electrically connected to the purge switch 23 and the purge control valve 24, and the controller 25 can receive a purge signal from the purge switch 23 and control the operation of the purge control valve 24 according to the purge signal, so as to conduct the purge pipe 22.
To further understand the automatic purging principle of the purge assembly 2, the following will describe the operation thereof in detail:
in the purging process of the LNG filling gun 3, the LNG filling gun 3 is inserted into the placing cavity 11 of the gun head placing barrel 1 by a worker. When the purge switch 23 (proximity switch) senses that the gun head 31 is inserted into the placing chamber 11, a corresponding purge signal is sent to the controller 25. After the controller 25 receives and processes the purge signal, the controller 25 sends a corresponding control signal to the purge control valve 24 (solenoid valve). The solenoid valve receives and responds to the control signal, and the solenoid valve is energized to open the purge line 22. Compressed air circulates through the purging pipe and is filled into the gun head placing barrel 1 to purge the liquid adding gun 3. After purging for 10 seconds, the electromagnetic valve is powered off, the purging pipe 22 is closed, and the liquid adding gun 3 completes automatic purging.
To sum up, the utility model provides a pair of LNG liquid feeding machine 100 that has integrateed rifle head and has placed a section of thick bamboo 1 and sweep subassembly 2 has following advantage and positive effect:
first, the LNG dispenser 100 is specially designed with a purge assembly 2 for automatically purging a dispensing gun 3. Specifically, the purge switch 23 in the purge module 2 can sense the position of the gun head 31, that is, whether the gun head 31 is inserted into the placing cavity 11, so as to control the operation of the purge control valve 24. When the purge switch 23 senses that the gun head 31 is inserted into the placing cavity 11, the purge switch 23 controls the purge control valve 24 to be opened, and the purge pipe 22 is conducted to purge the gun head 31 immediately. The purging switch 23 can replace manual switch operation of workers, and the advantage of automatic purging operation is reflected. So, the aforesaid sweeps subassembly 2 and can realize that LNG liquid feeding rifle 3's plug and insert blows promptly, and degree of automation is high, need not other unnecessary operating procedure, and labour saving and time saving has fundamentally eliminated the staff and has neglected or have nothing to sweep the possibility that the condition emergence such as blows, has avoided the damage that debris such as the ice dregs that are not in time swept and caused liquid feeding rifle 3, has guaranteed the security that liquid feeding rifle 3 used.
Secondly, the LNG dispenser 100 is provided with a gun head placing cylinder 1 for placing a gun head 31 of the liquid gun 3. Because the lance head placing cylinder 1 does not need a sealing ring to be tightly matched with the lance head 31, the placing cavity 11 specially used for placing the lance head 31 can be provided to align the lance head 31 with the purging pipe 22 under the condition of reducing or avoiding damage to the sealing ring of the liquid adding lance 3, so that the lance head 31 can be purged accurately and efficiently. In addition, the gun head placing cylinder 1 is made of polytetrafluoroethylene, and the characteristics of the polytetrafluoroethylene can ensure that sparks are generated when the gun head placing cylinder 1 is not in contact with the liquid adding gun 3, so that the abrasion to the liquid adding gun 3 is further reduced, and the service life of the liquid adding gun 3 is prolonged.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. An LNG liquid adding machine comprises a machine shell and a liquid adding gun arranged on the machine shell; the method is characterized in that: the LNG liquid adding machine also comprises a gun head placing cylinder embedded on the shell and a purging assembly arranged in the shell;
the gun head placing cylinder is provided with a placing cavity which is adaptive to and accommodates the gun head of the liquid adding gun; the placing cavity is exposed out of an opening at one end of the casing for the gun head to be inserted, and an opening at the other end of the placing cavity in the casing is an air blowing port;
the purging assembly comprises a purging pipe, a purging control valve and a purging switch;
the blowing pipe is correspondingly arranged at the blowing port; the purging pipe is communicated with the placing cavity so as to be aligned with the gun head;
the purging control valve is arranged on the purging pipe and used for controlling the on-off of the purging pipe;
the purging switch is electrically connected with the purging control valve and used for sensing whether the gun head is placed in the placing cavity or not; when the gun head is plugged into the placing cavity, the purging switch controls the purging control valve to act, so that the purging pipe is conducted.
2. The LNG charger of claim 1, characterized in that:
the purge switch is a proximity switch.
3. The LNG charger of claim 2, characterized in that:
the blowing switch is arranged close to the blowing opening.
4. The LNG charger of claim 1, characterized in that:
the purge control valve is an electromagnetic valve.
5. An LNG filler as claimed in any one of claims 1 to 4, characterized in that:
the purge assembly further comprises a controller;
the controller is respectively electrically connected with the purging switch and the purging control valve.
6. The LNG charger of claim 1, characterized in that:
the purging assembly further comprises a filter pressure reducing valve;
the filtering pressure reducing valve is arranged on the purging pipe.
7. The LNG charger of claim 1, characterized in that:
a placing table for installing and fixing the gun head placing barrel is formed at the lower part of the shell;
the placing table is provided with an inclined plane which is inclined downwards, and the inclined plane is provided with an installation opening matched with the gun head placing barrel;
the gun head placing cylinder can extend into the casing through the mounting opening, and the gun head placing cylinder is exposed out of the outer end face of the opening of the casing and is parallel to the inclined plane.
8. The LNG filling machine of claim 7, characterized in that:
a flange is annularly arranged at one opening end of the gun head placing cylinder;
the diameter of the flange is larger than that of the mounting opening; when the gun head placing cylinder is clamped at the mounting opening, the flange protrudes out of the inclined plane, and the inner end face of the flange facing the inside of the shell is attached to the inclined plane.
9. The LNG charger of claim 1, characterized in that:
the end part of the gun head placing cylinder, which is provided with the air blowing opening, is also provided with a bulge;
the air blowing port penetrates through the bulge; the blowing pipe can be sleeved on the bulge through a matched fastener to be communicated with the blowing port.
10. The LNG charger of claim 1, characterized in that:
the gun head placing cylinder is a polytetrafluoroethylene cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920744127.2U CN210035051U (en) | 2019-05-22 | 2019-05-22 | LNG liquid feeding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920744127.2U CN210035051U (en) | 2019-05-22 | 2019-05-22 | LNG liquid feeding machine |
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| Publication Number | Publication Date |
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| CN210035051U true CN210035051U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920744127.2U Active CN210035051U (en) | 2019-05-22 | 2019-05-22 | LNG liquid feeding machine |
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| CN (1) | CN210035051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107800A (en) * | 2019-05-22 | 2019-08-09 | 张家港中集圣达因低温装备有限公司 | LNG liquid addition machine |
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2019
- 2019-05-22 CN CN201920744127.2U patent/CN210035051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107800A (en) * | 2019-05-22 | 2019-08-09 | 张家港中集圣达因低温装备有限公司 | LNG liquid addition machine |
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