CN211694347U - Safe type gas supply system and LNG sled dress formula gas supply station - Google Patents
Safe type gas supply system and LNG sled dress formula gas supply station Download PDFInfo
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- CN211694347U CN211694347U CN202020240484.8U CN202020240484U CN211694347U CN 211694347 U CN211694347 U CN 211694347U CN 202020240484 U CN202020240484 U CN 202020240484U CN 211694347 U CN211694347 U CN 211694347U
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Abstract
The application relates to a safe type gas supply system and LNG sled dress formula gas supply station includes: the gas cylinder, buffer tank, first relief valve, second relief valve, vaporizer. The gas cylinder passes through the second pipeline and connects the vaporizer, and the vaporizer passes through the third pipeline and connects with the gas dispenser, and liquefied natural gas exports the vaporizer from the gas cylinder, gasifies through the vaporizer, carries again with the gas dispenser. And a second safety valve is arranged on the third pipeline, and when the pressure in the third pipeline is too high, the gas in the third pipeline can escape to the buffer tank through the second safety valve, so that the pressure in the third pipeline is regulated. The gas cylinder is connected with the buffer tank through the first pipeline, the first safety valve is arranged on the first pipeline, when the pressure in the gas cylinder is too high, the gas in the gas cylinder can escape to the buffer tank through the first safety valve on the first pipeline, and therefore the pressure in the gas cylinder is adjusted.
Description
Technical Field
The application relates to petrochemical industry energy equipment technical field especially relates to a safe type gas supply system and LNG sled dress formula gas supply station.
Background
Liquefied Natural Gas (LNG) is a liquid obtained by compressing Natural Gas and cooling the compressed Natural Gas to its boiling point, and is usually stored in a low-temperature storage tank at about-161.5 ° and 0.1MPa, and is gasified again when used, and a vehicle is aerated by an aerator. In the prior art, an LNG gas supply station is usually set up to fill gas into vehicles, a storage tank or a gas cylinder and the like are arranged in the LNG gas supply station to store liquefied natural gas, the liquefied natural gas is gasified through a gasifier when gas is required to be filled, and then the gas is filled into the vehicles through a gas filler. However, in the prior art, the pipeline connected between the gas cylinder and the gas dispenser often causes gas leakage and volatilization and other potential safety hazards due to overlarge pressure, and the potential safety hazards are easily caused by overlarge internal pressure of the gas cylinder.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art at least to some extent, the present application provides a safe type gas supply system and an LNG skid-mounted gas supply station.
The scheme of the application is as follows:
according to a first aspect of embodiments of the present application, there is provided a safety type gas supply system, including:
the gas cylinder, the buffer tank, the first safety valve, the second safety valve and the gasifier;
the gas cylinder is connected with the buffer tank through a first pipeline and is also connected with a gasifier through a second pipeline, wherein the first pipeline is provided with the first safety valve, and the valve direction of the first safety valve faces to the buffer tank;
the gasifier is connected with a gas dispenser through a third pipeline, wherein the second safety valve is arranged on the third pipeline;
the buffer tank is connected with the second safety valve through a fourth pipeline, and the valve direction of the second safety valve faces to the buffer tank.
Preferably, in an implementable manner of the present application, the buffer tank is further connected to the gas dispenser through a fifth pipeline, wherein a third safety valve is disposed on the fifth pipeline, and a valve direction of the third safety valve faces the buffer tank.
Preferably, in an implementation manner of the present application, the method further includes: a gas recovery tank;
the gas recovery jar passes through the sixth pipe connection the buffer tank, wherein, be provided with the check valve on the sixth pipe, check valve direction orientation the gas recovery jar.
Preferably, in an achievable mode of the present application, the second pipeline is further provided with a liquid pump,
preferably, in an implementation manner of the present application, the method further includes:
a central controller, a gasifier temperature sensor;
the central controller is connected with the gasifier temperature sensor;
the gasifier temperature sensor is arranged in the gasifier and used for collecting temperature data in the gasifier and sending the temperature data in the gasifier to the central controller.
Preferably, in an implementation manner of the present application, the method further includes:
a buffer tank pressure sensor;
the central controller is also connected with the buffer tank pressure sensor;
the buffer tank pressure sensor is arranged in the buffer tank and used for collecting pressure data in the buffer tank and sending the pressure data in the buffer tank to the central controller.
Preferably, in an implementation manner of the present application, the method further includes:
a buffer tank temperature sensor;
the central controller is also connected with the buffer tank temperature sensor;
the buffer tank temperature sensor is arranged in the buffer tank and used for collecting temperature data in the buffer tank and sending the temperature data in the buffer tank to the central controller.
Preferably, in an implementation manner of the present application, the method further includes:
a gas cylinder pressure sensor;
the central controller is also connected with the gas cylinder pressure sensor;
the gas cylinder pressure sensor is arranged in the gas cylinder and used for collecting pressure data in the gas cylinder and sending the pressure data in the gas cylinder to the central controller.
Preferably, in an implementation manner of the present application, the method further includes:
a liquid level meter;
the central controller is also connected with the liquid level meter;
the liquid level meter is arranged in the gas cylinder and used for collecting liquid level data in the gas cylinder and sending the liquid level data in the gas cylinder to the central controller.
According to a second aspect of the embodiments of the present application, there is provided an LNG skid-mounted gas supply station, comprising: the container, the instrument system, combustible gas detection alarm system adds the mechanism of qi, refrigerating system and as above any one the safe type gas supply system.
The technical scheme provided by the application can comprise the following beneficial effects: safe type gas supply system includes: the gas cylinder, buffer tank, first relief valve, second relief valve, vaporizer. The gas cylinder passes through the second pipeline and connects the vaporizer, and the vaporizer passes through the third pipeline and connects with the gas dispenser, and liquefied natural gas exports the vaporizer from the gas cylinder, gasifies through the vaporizer, carries again with the gas dispenser. And a second safety valve is arranged on the third pipeline, and when the pressure in the third pipeline is too high, the gas in the third pipeline can escape to the buffer tank through the second safety valve, so that the pressure in the third pipeline is regulated. The gas cylinder passes through first pipeline connection buffer tank, sets up first relief valve on first pipeline, and when the pressure was too high in the gas cylinder, the buffer tank can be escaped through the first relief valve on the first pipeline to the gas in the gas cylinder to the pressure in the gas cylinder has been adjusted, has reduced the potential safety hazard in the gas supply system through the pressure in adjusting the gas cylinder and the pressure in the third pipeline.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic diagram of a safety gas supply system according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a safety gas supply system according to another embodiment of the present application;
FIG. 3 is a schematic diagram of a safety gas supply system according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a safety type gas supply system according to another embodiment of the present application.
Reference numerals: a gas cylinder-1; a first conduit-11; a second conduit-12; a third conduit-13; a fourth conduit-14; a fifth conduit-15; a buffer tank-2; a first safety valve-3; a second safety valve-4; a gasifier-5; a third safety valve-6; a gas recovery tank-7; and (4) a liquid pump-8.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
Fig. 1 is a schematic structural diagram of a safety type gas supply system according to an embodiment of the present application, and referring to fig. 1, the safety type gas supply system includes:
the device comprises a gas cylinder 1, a buffer tank 2, a first safety valve 3, a second safety valve 4 and a gasifier 5;
the gas cylinder 1 is connected with the buffer tank 2 through a first pipeline 11 and is also connected with the gasifier 5 through a second pipeline 12, wherein a first safety valve 3 is arranged on the first pipeline 11, and the valve direction of the first safety valve 3 faces to the buffer tank 2;
the gasifier 5 is connected with a gas dispenser through a third pipeline 13, wherein a second safety valve 4 is arranged on the third pipeline 13;
the buffer tank 2 is connected with a second safety valve 4 through a fourth pipeline 14, and the valve direction of the second safety valve 4 faces to the buffer tank 2.
The gas cylinder 1 is a cryogenic gas cylinder 1 for storing liquefied natural gas, which is commonly used in the art.
The safety valve is a special valve which is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of a system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value.
The gasifier 5 is a device commonly used in the art for gasifying liquefied natural gas.
The safe type air supply system in this embodiment includes: the gas cylinder 1, the buffer tank 2, the first safety valve 3, the second safety valve 4 and the gasifier 5. The gas cylinder 1 is connected with the gasifier 5 through the second pipeline 12, the gasifier 5 is connected with the gas dispenser through the third pipeline 13, and the liquefied natural gas is output to the gasifier 5 from the gas cylinder 1, gasified through the gasifier 5 and then conveyed to the gas dispenser. A second safety valve 4 is provided in the third pipe 13, and when the pressure in the third pipe 13 is too high, the gas in the third pipe 13 can escape to the surge tank 2 through the second safety valve 4, thereby regulating the pressure in the third pipe 13. The gas cylinder 1 is connected with the buffer tank 2 through the first pipeline 11, the first safety valve 3 is arranged on the first pipeline 11, when the pressure in the gas cylinder 1 is too high, the gas in the gas cylinder 1 can escape to the buffer tank 2 through the first safety valve 3 on the first pipeline 11, and therefore the pressure in the gas cylinder 1 is adjusted.
In some embodiments, referring to fig. 2, the buffer tank 2 is further connected to the gas dispenser through a fifth pipeline 15, wherein a third safety valve 6 is disposed on the fifth pipeline 15, and a valve direction of the third safety valve 6 faces the buffer tank 2.
The safety gas supply system in some embodiments, with reference to fig. 3, further includes: a gas recovery tank 7;
the gas recovery tank 7 is connected to the buffer tank 2 through a sixth pipeline, wherein a check valve is arranged on the sixth pipeline, and the valve direction of the check valve faces the gas recovery tank 7.
When the gas in buffer tank 2 is recovered and is saturated, the gas in buffer tank 2 needs to be discharged, and gas recovery tank 7 is arranged, so that gas recovery tank 7 is connected with buffer tank 2 through a sixth pipeline, a check valve is arranged on the sixth pipeline, and when the gas in buffer tank 2 is saturated, gas recovery tank 7 can be discharged through the sixth pipeline, and the check valve is arranged, so that the gas can only enter but not exit.
The user can treat and recycle the gas in the gas recovery tank 7.
In some embodiments of the safety gas supply system, referring to fig. 4, the second conduit 12 is further provided with a liquid pump 8.
The liquid pump 8 is used for pumping the liquefied natural gas from the gas cylinder 1 and sending the liquefied natural gas to the vaporizer 5 for vaporization.
The safety gas supply system in some embodiments, further comprising:
the system comprises a central controller, a gasifier temperature sensor, a buffer tank pressure sensor, a buffer tank temperature sensor, a gas cylinder pressure sensor and a liquid level meter;
the buffer tank 2 includes: a pressure regulating valve for regulating the internal pressure of the surge tank 2;
the central controller is connected with a gasifier temperature sensor, a liquid pump 8, a pressure regulating valve of the buffer tank 2, a buffer tank pressure sensor, a buffer tank temperature sensor, a gas cylinder pressure sensor and a liquid level meter;
the gasifier temperature sensor is arranged in the gasifier 5 and used for acquiring temperature data in the gasifier 5 and sending the temperature data in the gasifier 5 to the central controller;
the buffer tank pressure sensor is arranged in the buffer tank 2 and used for acquiring pressure data in the buffer tank 2 and sending the pressure data in the buffer tank to the central controller;
the buffer tank temperature sensor is arranged in the buffer tank 2 and used for collecting temperature data in the buffer tank 2 and sending the temperature data in the buffer tank to the central controller;
the gas cylinder pressure sensor is arranged in the gas cylinder 1 and used for collecting pressure data in the gas cylinder 1 and sending the pressure data in the gas cylinder to the central controller;
the liquid level meter is arranged in the gas cylinder 1 and used for collecting liquid level data in the gas cylinder 1 and sending the liquid level data in the gas cylinder to the central controller;
the central controller may be equipped with a display to display temperature data in the vaporizer 5, pressure and temperature data in the buffer tank 21, pressure and liquid level data in the gas cylinder 1.
The central controller is also used to control the operating frequency of the liquid pump 8 and also to regulate the internal pressure of the buffer vessel 2. The central controller meets the requirement of the user on the air supply of the air dispenser by controlling the working frequency of the liquid pump 8 and adjusting the internal pressure of the buffer tank 2.
An LNG skid-mounted gas supply station, comprising: the container, the instrument system, combustible gas detection alarm system, add mechanism of qi, refrigerating system to and as the safe type gas supply system in any one above embodiment.
LNG sled dress formula gas supply station uses LNG to add the mechanism of qi, fills automobile-used LNG for LNG car gas bomb to can provide the facility of other convenience services.
The LNG skid-mounted gas supply station in this embodiment is provided with a container as a facility housing to protect the internal systems.
The instrument system, the combustible gas detection alarm system, the gas dispenser, the refrigeration system and the safety gas supply system are all arranged in the container.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A safety type gas supply system, comprising:
the gas cylinder, the buffer tank, the first safety valve, the second safety valve and the gasifier;
the gas cylinder is connected with the buffer tank through a first pipeline and is also connected with a gasifier through a second pipeline, wherein the first pipeline is provided with the first safety valve, and the valve direction of the first safety valve faces to the buffer tank;
the gasifier is connected with a gas dispenser through a third pipeline, wherein the second safety valve is arranged on the third pipeline;
the buffer tank is connected with the second safety valve through a fourth pipeline, and the valve direction of the second safety valve faces to the buffer tank.
2. The safety gas supply system according to claim 1, wherein the buffer tank is further connected to the gas dispenser through a fifth pipeline, wherein a third safety valve is disposed on the fifth pipeline, and a valve direction of the third safety valve faces the buffer tank.
3. The safety gas supply system according to claim 2, further comprising: a gas recovery tank;
the gas recovery jar passes through the sixth pipe connection the buffer tank, wherein, be provided with the check valve on the sixth pipe, check valve direction orientation the gas recovery jar.
4. The safe gas supply system according to claim 3, wherein the second pipeline is further provided with a liquid pump.
5. The safety air supply system according to claim 4, further comprising:
a central controller, a gasifier temperature sensor;
the surge tank includes: the pressure regulating valve is used for regulating the internal pressure of the buffer tank;
the central controller is connected with the gasifier temperature sensor, the liquid pump and the pressure regulating valve of the buffer tank;
the gasifier temperature sensor is arranged in the gasifier and used for collecting temperature data in the gasifier and sending the temperature data in the gasifier to the central controller;
the central controller is used for displaying temperature data in the gasifier, controlling the working frequency of the liquid-extracting pump and adjusting the internal pressure of the buffer tank.
6. The safety air supply system according to claim 5, further comprising:
a buffer tank pressure sensor;
the central controller is also connected with the buffer tank pressure sensor;
the buffer tank pressure sensor is arranged in the buffer tank and used for collecting pressure data in the buffer tank and sending the pressure data in the buffer tank to the central controller;
the central controller is also used for displaying the pressure data in the buffer tank.
7. The safety air supply system according to claim 5, further comprising:
a buffer tank temperature sensor;
the central controller is also connected with the buffer tank temperature sensor;
the buffer tank temperature sensor is arranged in the buffer tank and used for collecting temperature data in the buffer tank and sending the temperature data in the buffer tank to the central controller;
the central controller is also used for displaying the temperature data in the buffer tank.
8. The safety air supply system according to claim 5, further comprising:
a gas cylinder pressure sensor;
the central controller is also connected with the gas cylinder pressure sensor;
the gas cylinder pressure sensor is arranged in the gas cylinder and used for collecting pressure data in the gas cylinder and sending the pressure data in the gas cylinder to the central controller;
the central controller is also used for displaying the pressure data in the gas cylinder.
9. The safety air supply system according to claim 5, further comprising:
a liquid level meter;
the central controller is also connected with the liquid level meter;
the liquid level meter is arranged in the gas cylinder and used for collecting liquid level data in the gas cylinder and sending the liquid level data in the gas cylinder to the central controller;
the central controller is also used for displaying the liquid level data in the gas cylinder.
10. The utility model provides a LNG sled dress formula gas supply station which characterized in that includes: a container, an instrumentation system, a combustible gas detection alarm system, a gas dispenser, a refrigeration system, and a safety gas supply system according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020240484.8U CN211694347U (en) | 2020-03-02 | 2020-03-02 | Safe type gas supply system and LNG sled dress formula gas supply station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020240484.8U CN211694347U (en) | 2020-03-02 | 2020-03-02 | Safe type gas supply system and LNG sled dress formula gas supply station |
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| CN211694347U true CN211694347U (en) | 2020-10-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283578A (en) * | 2020-11-13 | 2021-01-29 | 广西电网有限责任公司贺州供电局 | Recovery method and system based on sulfur hexafluoride gas recovery device |
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2020
- 2020-03-02 CN CN202020240484.8U patent/CN211694347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283578A (en) * | 2020-11-13 | 2021-01-29 | 广西电网有限责任公司贺州供电局 | Recovery method and system based on sulfur hexafluoride gas recovery device |
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Effective date of registration: 20210712 Address after: 212000 No. 200, Dingdian, South Village, Xincheng Town, Dantu District, Zhenjiang City, Jiangsu Province Patentee after: Guangtai Zhizao Technology (Jiangsu) Co.,Ltd. Address before: 215600 Fengzhuang village, Houcheng, Jingang town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: Jiangsu Guangtai Petrochemical Energy Equipment Technology Co.,Ltd. |