CN215411381U - Compressed natural gas dispenser with self-cutting structure - Google Patents
Compressed natural gas dispenser with self-cutting structure Download PDFInfo
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- CN215411381U CN215411381U CN202023062178.9U CN202023062178U CN215411381U CN 215411381 U CN215411381 U CN 215411381U CN 202023062178 U CN202023062178 U CN 202023062178U CN 215411381 U CN215411381 U CN 215411381U
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Abstract
The utility model discloses a compressed natural gas dispenser with a self-cutting structure, which belongs to the technical field of natural gas dispensers and comprises a dispenser body and a gas dispensing gun arranged outside the dispenser body, wherein the side wall of the dispenser body is respectively provided with a gas inlet and a gas outlet; the gas pipeline is provided with the filter, the electromagnetic valve and the mass flow meter in sequence from the gas inlet to the gas outlet, the mass flow meter and the controller are in wireless communication, the gas flow and pressure data in the gas pipeline are transmitted to the controller, and the controller controls the action of the electromagnetic valve and the display of the touch display screen according to the gas flow and pressure data; the breaking valve is arranged between the mass flowmeter and the air gun. The problem that there is the potential safety hazard in the machine of qi that adds at present has been solved to this kind of structure to simple structure easily overhauls.
Description
Technical Field
The utility model belongs to the technical field of natural gas filling machines, and particularly relates to a compressed natural gas filling machine with a self-cutting structure.
Background
CNG is a short hand for Compressed Natural Gas (Compressed Natural Gas), and the Compressed Natural Gas Compressed by 200 times is used for Gas vehicles, and with the current trend of domestic and international energy use and the use of large Gas transmission pipelines such as "west Gas and east Gas transmission", especially the "west Gas and east Gas transmission" project in China brings new power to the application of CNG automobiles in many cities along pipelines, and each city can take the construction of CNG Gas stations and the oil-to-Gas change of buses and taxies as key projects for city environmental protection and city energy structure adjustment.
The usage of CNG gas filling machine in gas station is bigger and bigger, but current CNG gas filling machine still has some potential safety hazards in the use, needs a safer equipment to solve this problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a compressed natural gas dispenser with a self-cutting structure, which solves the problem of potential safety hazard of the conventional gas dispenser and is simple in structure and easy to overhaul.
In order to achieve the above purpose, the solution of the utility model is:
a compressed natural gas dispenser with a self-cutting structure comprises a dispenser body and a gas dispensing gun arranged outside the dispenser body, wherein the side wall of the dispenser body is respectively provided with a gas inlet and a gas outlet, the dispenser body is communicated with the gas inlet and the gas outlet through a gas pipeline, and the gas dispensing gun is connected with the gas outlet; the gas pipeline is provided with the filter, the electromagnetic valve and the mass flow meter in sequence from the gas inlet to the gas outlet, the mass flow meter and the controller are in wireless communication, the gas flow and pressure data in the gas pipeline are transmitted to the controller, and the controller controls the action of the electromagnetic valve according to the gas flow and pressure data and controls the display of the touch display screen; the breaking valve is arranged between the mass flowmeter and the air gun.
The gas dispenser also comprises a gas discharge pipe, one end of the gas discharge pipe is connected to a gas pipeline between the mass flow meter and the electromagnetic valve, and the other end of the gas discharge pipe penetrates through the machine body and is positioned outside the machine body; a safety valve is arranged on the air release pipe in the machine body.
The mass flowmeter comprises a fluid sensor and a pressure transmitter, wherein the fluid sensor and the pressure transmitter are both in wireless connection with the electromagnetic valve.
The controller is arranged at the upper part in the machine body through a fixing frame.
The air filling gun is connected with the air release pipe through the release pipe.
An explosion-proof junction box is also arranged in the machine body.
The outer wall of the machine body is provided with a hook for placing an air gun.
After adopting the scheme, compared with the prior art, the utility model has the beneficial effects that:
(1) in the working process, when the gas filling gun is not pulled down and the automobile is driven away, the two ends are immediately sealed after the breaking valve is separated under the action of external force, the gas filling hose is automatically disconnected, natural gas leakage cannot occur, and the safe working of the gas filling machine is ensured;
(2) the mass flowmeter of the utility model can directly measure the mass and volume of the gas, has the advantages of long service life, high metering precision and separable maintenance, has the function of automatic temperature compensation without being influenced by the density of an internal medium, and can provide parameters such as the density, the temperature, the flow rate and the like of a gas source at any time. The precision of the mass flowmeter used by the utility model is +/-0.15%;
(3) according to the utility model, the gas release pipe is connected to the gas pipeline, and the safety valve is arranged on the gas release pipe, so that the gas release pipe can be opened when the pressure in the gas pipeline is too high, and the danger caused by too high gas pressure is prevented;
(4) according to the utility model, the hook is arranged on the outer wall of the machine body, the air gun is placed on the hook when the air is not added, and the hook can place the air gun at a fixed position, so that the danger caused by the falling of the air gun is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a working principle diagram of the present invention.
Reference numerals:
1. a body; 2. a filter; 3. an electromagnetic valve; 4. a mass flow meter; 5. breaking the valve; 6. an air gun; 7. an air entrainment hose; 8. a controller; 9. a safety valve; 10. discharging the air pipe; 11. a touch display screen; 12. a fixed mount; 13. a discharge pipe; 14. an explosion-proof junction box; 15. a fluid sensor; 16. a pressure transmitter; 17. an air inlet; 18. and (4) hanging hooks.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1, the utility model provides a compressed natural gas dispenser with a self-cutting structure, which comprises a body 1, a filter 2, an electromagnetic valve 3, a mass flow meter 4, a controller 8, a snapping valve 5, a gas gun 6 and a touch display screen 11, wherein the filter 2, the electromagnetic valve 3, the mass flow meter 4 and the controller are arranged on the body 1, the snapping valve 5, the gas gun 6 and the touch display screen 11 are arranged outside the body 1, an air inlet 17 is formed in the side wall of the body 1, the input end of the filter 2 is connected with an air storage tank outside the body 1 through the air inlet 17, the output end of the filter 2 is connected with the gas gun 6 through the electromagnetic valve 3, the input gas is filtered by the filter 2 and then is injected into a vehicle air storage bottle through the gas gun 6 through an air outlet on the body 1, the electromagnetic valve 3 is used for controlling the opening and closing of a gas filling channel, and the filter 2 and the electromagnetic valve 3 are communicated through a gas pipeline; the mass flow meter 4 is arranged between the electromagnetic valve 3 and the gas filling gun 6 and is in wireless communication with the controller 8, the mass flow meter 4 is used for detecting data such as flow and pressure of gas flowing through a gas pipeline in real time and transmitting the data to the controller 8, the controller 8 is also in wireless communication with the electromagnetic valve 3 at the same time, the controller 8 processes the data according to flow signals and pressure data measured by the mass flow meter 4 in the metering process, the gas filling process is monitored and controlled through the electromagnetic valve 3, and the flow signals and the pressure data can be transmitted to the touch display screen 11 in real time through wireless communication to be displayed; the touch display screen 11 can display contents under the control of the controller 8, and can also be used for presetting data such as air adding amount, money, quality, pressure and the like for a user.
The improvement points of the utility model are that: the breaking valve 5 is arranged between the mass flow meter 4 and the gas filling gun 6, the breaking valve 5 is communicated with the mass flow meter 4 through a gas pipeline, and the other end of the breaking valve 5 is communicated with the gas filling gun 6 through the gas filling hose 7, so that if the gas filling gun is far away from the automobile, the breaking valve 5 can ensure that gas cannot leak, and the safe operation of the gas filling machine is ensured.
As a preferred embodiment of the present invention, one end of the air release pipe 10 is disposed outside the machine body 1, and the other end enters the machine body 1 and is connected to the gas pipeline between the mass flow meter 4 and the electromagnetic valve 3; still be equipped with relief valve 9 on gas release pipe 10, when gas pipeline internal pressure was too big, the accessible opened relief valve 9 (can manually open, or open through controller control), intercommunication gas release pipe 10 and release pressure, prevent that gas pipeline internal pressure is too big and take place danger, improve the safety in utilization who adds the mechanism of qi.
As a preferred embodiment of the present invention, the mass flowmeter 4 comprises a fluid sensor 15 and a pressure transmitter 16, both the fluid sensor 15 and the pressure transmitter 16 are wirelessly connected to the solenoid valve 3, wherein the fluid sensor 15 can directly measure the mass and volume of the fluid, and has the characteristics of long service life, high metering accuracy, and separable maintenance, and the working performance of the mass flowmeter is not affected by the density of the internal medium, has a temperature automatic compensation function, and can provide parameters such as density, temperature, flow rate and the like of the air source at any time; the pressure transmitter 16 can convert physical pressure parameters of gas, liquid and the like sensed by the load cell sensor into standard electrical signals (such as 4-20 mADC and the like) to supply to secondary instruments such as an indication alarm instrument, a recorder, a regulator and the like for measurement, indication and process regulation.
As a preferred embodiment of the present invention, the controller 8 is mounted at an upper portion in the body 1 through a fixing frame 12.
In a preferred embodiment of the utility model, the air gun 6 is connected to the air bleed tube 10 by a bleed tube 13.
As a preferred embodiment of the present invention, an explosion-proof junction box 14 is further disposed inside the machine body 1.
As a preferred embodiment of the utility model, the hook 18 is arranged on the outer wall of the machine body 1, the air gun 6 is placed on the hook 18, and the hook 18 can place the air gun 6 at a fixed position, so that the danger caused by the falling of the air gun 6 is avoided.
The working principle of the utility model is as follows: as shown in fig. 2, when gas is required to be added, after a user sets an adding amount or amount of money through a touch display screen 11, a controller 8 controls an electromagnetic valve to be opened, compressed natural gas in a gas storage tank enters a gas adding machine and is firstly filtered by a filter 2, then sequentially passes through an electromagnetic valve 3 and a mass flow meter 4 in a gas pipeline, and then enters a gas adding gun 6 through a breaking valve 5 to be injected into a vehicle gas storage bottle, in the process, the mass flow meter 4 detects data such as flow and pressure of the flowing gas in real time, when the gas is added to a quantitative preset value or the pressure of the gas storage bottle reaches a specified maximum pressure of 20MPa, or the controller 8 converts the set amount of money into the adding amount, and when the gas is added to the adding amount, the controller 8 controls the electromagnetic valve 3 to be closed, and gas adding is stopped. If the gas filling process is not finished, the automobile is started, the automobile drives the gas filling gun 6 to be away from the machine body 1 together until the breaking valve 5 is separated, and at the moment, natural gas cannot flow out due to the effect of the breaking valve 5, so that the leakage of the natural gas is prevented.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 utility model. In this specification, the schematic representations of the terms used above should not be understood to 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. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.
Claims (5)
1. A compressed natural gas dispenser with a self-cutting structure comprises a dispenser body and a gas dispensing gun arranged outside the dispenser body, wherein the side wall of the dispenser body is respectively provided with a gas inlet and a gas outlet, the dispenser body is communicated with the gas inlet and the gas outlet through a gas pipeline, and the gas dispensing gun is connected with the gas outlet; the method is characterized in that: the gas pipeline is provided with the filter, the electromagnetic valve and the mass flow meter in sequence from the gas inlet to the gas outlet, the mass flow meter and the controller are in wireless communication, the gas flow and pressure data in the gas pipeline are transmitted to the controller, and the controller controls the action of the electromagnetic valve according to the gas flow and pressure data and controls the display of the touch display screen; the breaking valve is arranged between the mass flowmeter and the air gun;
the gas dispenser also comprises a gas discharge pipe, one end of the gas discharge pipe is connected to a gas pipeline between the mass flow meter and the electromagnetic valve, and the other end of the gas discharge pipe penetrates through the machine body and is positioned outside the machine body; a safety valve is arranged on the air release pipe in the machine body;
the air filling gun is connected with the air release pipe through the release pipe.
2. The compressed natural gas dispenser with a self-shut-off structure as claimed in claim 1, wherein: the mass flowmeter comprises a fluid sensor and a pressure transmitter, and the fluid sensor and the pressure transmitter are both in wireless connection with the electromagnetic valve.
3. The compressed natural gas dispenser with a self-shut-off structure as claimed in claim 1, wherein: the controller is arranged at the upper part in the machine body through a fixing frame.
4. The compressed natural gas dispenser with a self-shut-off structure as claimed in claim 1, wherein: an explosion-proof junction box is further arranged inside the machine body.
5. The compressed natural gas dispenser with a self-shut-off structure as claimed in claim 1, wherein: the outer wall of the machine body is provided with a hook for placing an air gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062178.9U CN215411381U (en) | 2020-12-18 | 2020-12-18 | Compressed natural gas dispenser with self-cutting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062178.9U CN215411381U (en) | 2020-12-18 | 2020-12-18 | Compressed natural gas dispenser with self-cutting structure |
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| CN215411381U true CN215411381U (en) | 2022-01-04 |
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| CN202023062178.9U Active CN215411381U (en) | 2020-12-18 | 2020-12-18 | Compressed natural gas dispenser with self-cutting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108914A (en) * | 2023-09-11 | 2023-11-24 | 山东大学 | Auxiliary device for preventing pulling leakage of hydrogenation machine |
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2020
- 2020-12-18 CN CN202023062178.9U patent/CN215411381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117108914A (en) * | 2023-09-11 | 2023-11-24 | 山东大学 | Auxiliary device for preventing pulling leakage of hydrogenation machine |
| CN117108914B (en) * | 2023-09-11 | 2024-03-19 | 山东大学 | Auxiliary device for preventing pulling leakage of hydrogenation machine |
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