CN212298540U

CN212298540U - Novel high-pressure LNG gas supply system assembly structure

Info

Publication number: CN212298540U
Application number: CN202022316678.4U
Authority: CN
Inventors: 陈水生; 朱承双; 张凤亮; 贺春影; 师为鹏; 张晶伟; 张健
Original assignee: Changchun Zhiyuan New Energy Equipment Co ltd
Current assignee: Changchun Zhiyuan New Energy Equipment Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-01-05
Anticipated expiration: 2030-10-16

Abstract

The utility model provides a novel high-pressure LNG gas supply system assembly structure, including LNG gas cylinder, the external pump of high pressure, vaporizer and buffer tank, be equipped with the guard ring subassembly on the LNG gas cylinder, the external pump of high pressure passes through guard ring subassembly fixed mounting at LNG gas cylinder lateral wall. The high-pressure external pump is arranged outside the LNG gas cylinder, so that the high-pressure external pump is convenient to maintain; the cooperation through first high pressure fuel pipe, second high pressure fuel pipe, switching-over valves, bypass valves and oil tank assembly can make the external pump of high pressure provide power to the external pump of high pressure beats out the liquefied natural gas of LNG gas cylinder, and the liquefied natural gas that is used for the external pump of high pressure to beat out through the vaporizer converts gaseous natural gas into.

Description

Novel high-pressure LNG gas supply system assembly structure

Technical Field

The utility model relates to a gaseous natural gas air feed technical field specifically is a novel high-pressure LNG air supply system assembly structure.

Background

The existing technical route in the industry is to implant a hydraulic cryogenic pump into an LNG gas cylinder, pump out cryogenic liquid in the LNG gas cylinder through the hydraulic cryogenic pump to form high-pressure LNG liquid, and form high-pressure natural gas through gasification heat exchange. The advantage of this technical route is that hydraulic pressure cryopump need not form the pump pond, inserts inside the gas cylinder, and the gas cylinder inner bag splendid attire LNG liquid container chamber is the pump pond, compact structure that the pump can be done. The LNG gas cylinder has the advantages that the pump is difficult to maintain when in failure, the liquid in the LNG gas cylinder needs to be completely discharged for maintenance, the maintenance cost is high, the maintenance difficulty is high, and certain potential safety hazards are caused.

The built-in pump HPDI air supply system has the defects that the pump is difficult to maintain when in failure, the liquid in the LNG gas cylinder needs to be completely discharged for maintenance, the maintenance cost is high, the maintenance difficulty is high, and certain potential safety hazards are caused.

Disclosure of Invention

An object of the utility model is to provide a novel high pressure LNG gas supply system assembly structure 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 novel high-pressure LNG gas supply system assembly structure comprises an LNG gas cylinder, a high-pressure external pump, a vaporizer and a buffer tank, wherein the LNG gas cylinder is provided with a protection ring component;

the high-pressure external pump is communicated with the reversing valve group through a first high-pressure oil pipe and a second high-pressure oil pipe, the reversing valve group is communicated with the bypass valve group through a high-pressure pipe, and the bypass valve group is communicated with the oil tank assembly;

the high-pressure external pump is communicated with the vaporizer through a vaporizer inlet pipe, the vaporizer is arranged on the protective ring assembly, and the vaporizer is used for converting the liquid natural gas pumped by the high-pressure external pump into gaseous natural gas;

the vaporizer is communicated with the buffer tank, the buffer tank is used for buffering gas, and the buffer tank is communicated with the truck base body.

Preferably, the high-pressure external pump is fixedly arranged on the protective ring assembly in a vertical arrangement mode.

Preferably, the high-pressure external pump is communicated with the LNG cylinder through a vacuum heat insulation pipe.

Preferably, the vaporizer housing communicates with the air cooler through a low pressure pipe.

Preferably, the vaporizer housing may also communicate with a water cooler through a low pressure pipe.

Preferably, the surge tank is also in communication with a filter.

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

The high-pressure external pump is arranged outside the LNG gas cylinder, so that the high-pressure external pump is convenient to maintain; the high-pressure external pump can provide power through the cooperation of the first high-pressure oil pipe, the second high-pressure oil pipe, the reversing valve group, the bypass valve group and the oil tank assembly, so that the high-pressure external pump pumps out the liquid natural gas of the LNG gas cylinder, and the liquid natural gas pumped out by the high-pressure external pump through the vaporizer is converted into gaseous natural gas; the gas of vaporizer output can play the effect of protection to gas buffering through the buffer tank to can provide the gaseous state natural gas of stable high pressure for the truck base member.

Drawings

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

fig. 2 is a schematic structural view of the vaporizer of the present invention;

fig. 3 is a schematic view of the working structure of the air cooler and the filter of the present invention.

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, in the embodiment of the present invention, a novel high-pressure LNG gas supply system assembly structure includes an LNG gas cylinder 1, a high-pressure external pump 3, a vaporizer 19, and a buffer tank 22, wherein the LNG gas cylinder 1 is provided with a guard ring assembly 2, and the high-pressure external pump 3 is fixedly mounted on an outer side wall of the LNG gas cylinder 1 through the guard ring assembly 2;

the protective ring component 2 and the LNG cylinder 1 are fixedly installed in a welding and screwing mode;

the high-pressure external pump 3 is communicated with a reversing valve group 6 through a first high-pressure oil pipe 4 and a second high-pressure oil pipe 5, the reversing valve group 6 is communicated with a bypass valve group 8 through a high-pressure pipe 7, and the bypass valve group 8 is communicated with an oil tank assembly 12;

the high-pressure external pump 3 is communicated with a vaporizer 19 through a vaporizer inlet pipe 18, the vaporizer 19 is arranged on the protective ring component 2, and the vaporizer 19 is used for converting the liquid natural gas pumped by the high-pressure external pump 3 into gaseous natural gas;

the vaporizer 19 is in communication with a surge tank 22, the surge tank 22 being for gas cushioning, the surge tank 22 being in communication with the truck base.

The high-pressure external pump 3 can provide power through the cooperation of the first high-pressure oil pipe 4, the second high-pressure oil pipe 5, the reversing valve group 6, the bypass valve group 8 and the oil tank assembly 12, so that the high-pressure external pump 3 pumps out the liquefied natural gas of the LNG gas cylinder 1, and the liquefied natural gas pumped out by the high-pressure external pump 3 is converted into gaseous natural gas through the vaporizer 19;

the gas output by the vaporizer 19 can be buffered by the buffer tank 22, so that the effect of protection is achieved, and stable and high-pressure gaseous natural gas can be provided for the truck base body;

the high-pressure external pump 3 of the embodiment is fixedly arranged on the protective ring component 2 in a vertical arrangement mode; the service performance of the high-pressure external pump 3 can be improved;

the high-pressure external pump 3 of the embodiment is communicated with the LNG cylinder 1 through a vacuum heat insulation pipe 16;

the vacuum heat-insulating pipe 16 can provide a heat-insulating effect to prevent the external temperature from affecting the transportation efficiency of the natural gas.

The vaporizer 19 housing of the present embodiment communicates with the air cooler 21 through the low pressure pipe 13.

The vaporizer 19 housing of the present embodiment may also communicate with a water cooler through the low pressure tube 13.

The vaporizer 19 is cooled by the air cooler 21 or the water cooler, so that the service life of the vaporizer 19 is prolonged, and the gasification heat exchange effect is improved.

The surge tank 22 of the present embodiment also communicates with a filter 23; the filter 23 can filter impurity substances in the gaseous natural gas, so that the purity effect of the natural gas is improved;

the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A novel high-pressure LNG gas supply system assembly structure is characterized by comprising an LNG gas cylinder (1), a high-pressure external pump (3), a vaporizer (19) and a buffer tank (22), wherein the LNG gas cylinder (1) is provided with a protection ring component (2), and the high-pressure external pump (3) is fixedly arranged on the outer side wall of the LNG gas cylinder (1) through the protection ring component (2);

the high-pressure external pump (3) is communicated with the reversing valve group (6) through a first high-pressure oil pipe (4) and a second high-pressure oil pipe (5), the reversing valve group (6) is communicated with the bypass valve group (8) through a high-pressure pipe (7), and the bypass valve group (8) is communicated with the oil tank assembly (12);

the high-pressure external pump (3) is communicated with a vaporizer (19) through a vaporizer inlet pipe (18), the vaporizer (19) is arranged on the protective ring assembly (2), and the vaporizer (19) is used for converting the liquid natural gas pumped by the high-pressure external pump (3) into gaseous natural gas;

the carburetor (19) is communicated with a buffer tank (22), the buffer tank (22) is used for gas buffering, and the buffer tank (22) is communicated with a truck base body.

2. The assembly structure of claim 1, wherein the high-pressure external pump (3) is fixedly arranged on the protective ring assembly (2) in a vertical arrangement.

3. The novel high-pressure LNG supply system assembly structure as claimed in claim 2, wherein the high-pressure external pump (3) is communicated with the LNG cylinder (1) through a vacuum heat insulation pipe (16).

4. The novel high-pressure LNG supply system assembly structure as claimed in claim 1, wherein the vaporizer (19) housing is communicated with the air cooler (21) through a low-pressure pipe (13).

5. The novel high-pressure LNG supply system assembly structure as claimed in claim 4, characterized in that the vaporizer (19) housing is also communicable with a water cooler through a low-pressure pipe (13).

6. The novel high-pressure LNG supply system assembly structure as claimed in claim 1, wherein the buffer tank (22) is further communicated with a filter (23).