CN201057358Y - Pile-up valve of compressed natural gas bottle - Google Patents
Pile-up valve of compressed natural gas bottle Download PDFInfo
- Publication number
- CN201057358Y CN201057358Y CNU2007200710701U CN200720071070U CN201057358Y CN 201057358 Y CN201057358 Y CN 201057358Y CN U2007200710701 U CNU2007200710701 U CN U2007200710701U CN 200720071070 U CN200720071070 U CN 200720071070U CN 201057358 Y CN201057358 Y CN 201057358Y
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- CN
- China
- Prior art keywords
- valve
- natural gas
- compressed natural
- safety relief
- integrated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Safety Valves (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a valve on liquid pipeline, in particular to an integral valve of compressed natural gas. The utility model comprises a safety atmospheric valve and an electromagnetic valve and is characterized in that a main passage of the integral valve is internally provided with a switch valve; the electromagnetic valve is arranged in a bypass circuit which is communicated with the two ends of the switch valve. The utility model solves the technical problem that the electromagnetic valve only works within a short time when an output passage of the CNG bottle is opened and then the output passage changes to cut-off non-working status to reduce faults.
Description
Technical field:
The utility model is the valve about fluid circuit, especially about being arranged on the integrated valve on the compressed natural gas bottle
Background technique:
Petroleum resources day by day the shortage today, the factory's training of qi that is produced in rock gas, petroleum gas and the petroleum refining process etc. is paid attention to by all circles day by day as gaseous fuel, and be used successfully in various power facilities and the device, be general known general knowledge as the fuel of motor vehicle to substitute traditional liquid fuels such as gasoline, diesel oil for example with rock gas and petroleum gas, rock gas is pressurizeed the back to dwindle its volume, thereby be stored in the steel cylinder, it is also ripe, perfect day by day to be convenient to the technology and equipment that Motor Vehicle carries.Present employed steel bottle filled with compressed natural gas is provided with a cover valving or an integrated valve, the combination of the open and close state by road between the control valve, finishing pneumatic inflation perfusion, outwards gas transmission and be in closed condition in the ordinary course of things on demand, but all there is some deficiency in practice in these valvings.Homemade as shown in Figure 1 compressed natural gas (CNG) cylinder integrated valve 1 ', it is made up of the throttle valve 18 and the stop valve 15 that are connected on the main passage 12 basically, also bypass is connected with safety relief valve 17 between throttle valve and stop valve, the deficiency of this type of integrated valve is when steel cylinder stops external air feed, stop valve 15 need be closed, otherwise damage in case lead to the air delivering pipeline of motor, because the by-pass flow path of throttle valve 18, to produce steel cylinder 3 and lose heart, and need open stop valve 15 during air feed.If compressed natural gas bottle 3 is installed in the automobile top position, 15 of manual stop valves cause operational inconvenience, Figure 2 shows that the steel bottle filled with compressed natural gas integrated valve 1 of import "; it with state's producing natural gas (CNG) shown in Figure 1 bottle integrated valve 1 ' difference increased a solenoid valve that is connected in series 14 before only being to be positioned at stop valve 15; so; the conducting that can come control electromagnetic valve by long-range power switch with close the air feed of realizing CNG bottle 3 or stop, greatly facilitating user's operation." because solenoid valve 15 wherein is to be serially connected in the main passage 12 of air feed, all natural gas of CNG bottle 3 outputs all must pass through it to but because this CNG integrated valve 1, so the power ratio that its action consumes is bigger, means that the consumption of the manufacture cost and the energy is big; Main is solenoid valve 15 then has influence on the normal air feed of CNG bottle 3 if be out of order, and vehicle can not be worked.Exactly because solenoid valve 14 is in the whole air feed stage, whole process is in that energising is often opened, big load operation state, does not break down unavoidably.
The model utility content:
The purpose of this utility model is to provide a kind of integrated valve of compressed natural gas bottle, the solenoid valve that solves is wherein only worked in the short time of opening CNG bottle output channel, end and off working state and after this output channel is opened, just change over to, to reduce the technical problem of its fault.
The technological scheme that the utility model solves the problems of the technologies described above is:
A kind of integrated valve of compressed natural gas bottle comprises safety relief valve, solenoid valve, it is characterized in that: be provided with switch valve in the main passage of integrated valve; This solenoid valve is arranged in the bypass circulation that is communicated with these switch valve two ends.
It is characterized in that: this safety relief valve is arranged on nearly CNG bottle place and the turnout that the main passage links to each other.
It is characterized in that: this safety relief valve is explosion chip and/or low melting alloy formula safety relief valve.
It is characterized in that: be provided with stop valve in the main passage between this safety relief valve and switch valve.
The beneficial effects of the utility model are:
1, because solenoid valve only plays the effect of the pilot valve of opening switch valve, as long as after switch valve is opened, when there was pressure difference at its two ends, it just made corresponding actions thereupon.Therefore, when the air supply system proper functioning, the solenoid valve work of needn't switching on is so under identical working life, its viability but can greatly improve.
As long as 2, solenoid valve uses as pilot valve little flow is arranged.Reduced the power of its consumption, conserve energy.
3, because solenoid valve power is little, its manufacture cost also descends relatively.
4, solenoid valve is only being opened the short time work of switch valve, all the other service life no electric circuits, so its user cost is few, and its rate of fault is extremely low.
Description of drawings:
Fig. 1 is existing homemade CNG integrated valve structural representation.
Fig. 2 is existing import CNG integrated valve structural representation.
Fig. 3 is the utility model structural representation.
Embodiment:
See also shown in Figure 3, the utility model compressed natural gas (CNG) integrated valve 1 comprises safety relief valve 16 and solenoid valve 14, wherein safety relief valve 16 is arranged on turnout 17 ends of the main passage 12 of nearly compressed natural gas bottle 3, usually be provided with the safety relief valve 16 of low melting alloy and two kinds of patterns of explosion chip, play pressure release when being separately implemented at overtemperature, superpressure, guarantee the effect of device security.But safety relief valve 16 also can be the safety relief valve of low melting alloy or explosion chip unimodality.In main passage 12, be provided with switch valve 11, with the keying of the natural gas flow in the control compressed natural gas bottle 3 to engine gallery.14 of solenoid valves are arranged in the bypass circulation 13 that is communicated with these switch valve 11 two ends.These compressed natural gas integrated valve 1 one ends and compressed natural gas bottle 3 join, and the other end is joined by the motor fuel pipeline of external pipe 2 with automobile.Be positioned at the unlatching of the switch valve 11 on the main passage 12 or close, the pressure size that depends on its route mouth two ends fully, when its gas pressure of importing and exporting two ends equates, under the effect of its valve spring thrust, make valve open, main passage 12 connects, and the rock gas in the compressed natural gas bottle 3 is able to flow direction engine.If gas pressure is greater than the gas pressure of switch valve 11 outlet end in the gas cylinder, because the existence of pressure difference, to order about spool moves to valve seat, when this pressure difference reaches when being equal to or greater than valve spring elastic force, then switch valve 11 cuts out, and cuts off main passage 12, when external pipe 2 is not connected with the motor fuel pipeline of automobile or during this pipeline booster, the pressure difference that switch valve 11 is imported and exported the two ends existence is enough to make switch valve 11 to be closed, and can not produce rock gas to external leakage.After in the utility model and compressed natural gas bottle 3 insert the motor fuel pipeline of automobile in the lump, forming an air supply system, because this system is a system with extraneous relative closure, if this system closed the required pressure difference of valve and caused it to be in closed condition in switch valve 11 import and export two ends existence this moment, change in no external force under the situation of this pressure difference, switch valve 11 can not opened voluntarily.It is exactly the power of opening buttoned-up switch valve 11 in order to provide that the utility model is serially connected in solenoid valve 14 between switch valve 11 entrance ends, as long as to solenoid valve 14 energisings, make its conducting bypass circulation 13, then switch valve 11 entrance ends are co-located under the same air pressure, its valve spring pushes away valve seat with spool, thereby make main passage 12 unimpeded, main passage 12 is in a single day unimpeded, under the situation of system's proper functioning, even solenoid valve 14 dead electricity are ended, bypass circulation 13 is cut off, but the pressure difference at switch valve 11 import and export two ends is very little, be not enough to overcome the elastic force of valve spring, valve is opening state all the time; That is to say in the utility model, only need to use small flow, low power solenoid valve can satisfy usage requirement.
When leakage or booster take place at motor car engine air supply system pipeline in switch valve 11 of the present utility model, the pressure of switch valve 11 outlet end swashs acute decline, its pressure reduction of importing and exporting two ends is closed switch valve 11 automatically greater than valve spring elastic force, prevent that rock gas causes waste and dangerous to external leakage in the compressed natural gas bottle 3.After fault is got rid of,, ensure that air supply system is unimpeded as long as of short duration moving electromagnetic valve 14 just can recover the state that switch valve 11 is in unlatching.
In addition, the main passage 12 between safety relief valve 16 and switch valve 11 also is provided with stop valve 15, and this stop valve 15 mainly is to stop to play the auxiliary effect of closing main passage 12 under outside air feed or some particular case for a long time.
Because conducting when being arranged on solenoid valve 14 in the bypass circulation 13 and only being in closed condition for the switch valve in main passage 12 11 makes switch valve 11 import and export two ends and is in same pressure, opens switch valve by the elastic force of valve spring.Therefore, the utility model can come replacement of solenoid valve 14 to be arranged in the bypass circulation 13 with stop valve, is in cut-off state when the utility model is not connected with the motor fuel pipeline; Behind the access motor fuel pipeline it being in opening state gets final product; In case the fuel conduit squib then needs manually stop valve to be closed.
Claims (7)
1. the integrated valve of a compressed natural gas bottle comprises safety relief valve, solenoid valve, it is characterized in that: be provided with switch valve in the main passage of integrated valve, this solenoid valve is arranged in the bypass circulation that is communicated with these switch valve two ends.
2. the integrated valve of compressed natural gas bottle according to claim 1 is characterized in that this safety relief valve is arranged on nearly CNG bottle place and the turnout that the main passage links to each other.
3. the integrated valve of compressed natural gas bottle according to claim 1 is characterized in that: this safety relief valve is explosion chip and/or low melting alloy formula safety relief valve.
4. the integrated valve of compressed natural gas bottle according to claim 2 is characterized in that: this safety relief valve is explosion chip and/or low melting alloy formula safety relief valve.
5. according to the integrated valve of claim 1,2,3 or 4 described compressed natural gas bottles, it is characterized in that: be provided with stop valve in the main passage between this safety relief valve and switch valve.
6. according to the integrated valve of claim 1,2,3 or 4 described compressed natural gas bottles, it is characterized in that: this solenoid valve can be replaced by stop valve.
7. the integrated valve of compressed natural gas bottle according to claim 5 is characterized in that: this solenoid valve can be replaced by stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710701U CN201057358Y (en) | 2007-06-14 | 2007-06-14 | Pile-up valve of compressed natural gas bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200710701U CN201057358Y (en) | 2007-06-14 | 2007-06-14 | Pile-up valve of compressed natural gas bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057358Y true CN201057358Y (en) | 2008-05-07 |
Family
ID=39426201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200710701U Expired - Fee Related CN201057358Y (en) | 2007-06-14 | 2007-06-14 | Pile-up valve of compressed natural gas bottle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057358Y (en) |
-
2007
- 2007-06-14 CN CNU2007200710701U patent/CN201057358Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 |