CN201715053U - Fuel gas vessel safety valve - Google Patents
Fuel gas vessel safety valve Download PDFInfo
- Publication number
- CN201715053U CN201715053U CN2010202377620U CN201020237762U CN201715053U CN 201715053 U CN201715053 U CN 201715053U CN 2010202377620 U CN2010202377620 U CN 2010202377620U CN 201020237762 U CN201020237762 U CN 201020237762U CN 201715053 U CN201715053 U CN 201715053U
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- cavity
- cock
- valve seat
- 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
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a fuel gas vessel safety valve which comprises a valve body with a gas inlet channel and a gas outlet channel. A valve base is arranged at one end of the gas outlet channel in the valve body; a valve plate matched with the valve base is arranged in the valve body close to the gas inlet channel; a gap for fuel gas with certain flow quantity to pass through is arranged between the valve plate and the valve base; and when the flow quantity of fuel gas exceeds a preset flow quantity range, the valve plate is closed with the valve body under the effect of the thrust force of fuel gas. The fuel gas vessel safety valve has the advantages that the structure is simple, the cost is low, when the flow quantity of fuel gas exceeds the preset flow quantity range, a gas source can be automatically cut off, accidents are completely prevented, and the safe use of gas is realized.
Description
Technical field
The utility model relates to a kind of gas leakage protector technical field, the middle pressure safety valve that specifically a kind of gas cylinder is used.
Background technique
Traditional gas cylinder is only installed a rotary switch usually, supply with the gas flow of combustion gas tool by reduction valve control, but be connected that sebific duct breaks or other urgencies between gas cylinder and the combustion gas tool connecting, when the flow of combustion gas is increased suddenly, can not close the source of the gas bottle automatically, the generation that causes the accident, thereby there is above-mentioned potential safety hazard in existing gas cylinder.
The model utility content
The purpose of this utility model is to solve the problems of the prior art, provides a kind of combustion gas overcurrent to cut off source of the gas, gas cylinder safety valve safe in utilization constantly automatically.
The technical solution of the utility model is: a kind of gas cylinder safety valve, comprise valve body with gas-entered passageway and outlet passageway, an end of outlet passageway is provided with valve seat in this valve body, be provided with the valve block that matches with described valve seat near the gas-entered passageway place in the described valve body, be provided with the gap that can supply the certain flow combustion gas to pass through between valve block and the valve seat, when gas flow surpassed the predetermined amount of flow scope, valve block was closed between realization and the valve seat under the effect of combustion gas thrust.
Described valve seat is provided with center hole, be inserted with an end of a guide rod in this center hole, the other end of described guide rod links to each other with described valve block, be provided with a spring between valve seat and the valve block, this spring one end links to each other with described valve seat, the other end of spring links to each other with described valve block, and described spring housing is located on the guide rod.
On described outlet passageway, also be provided with a cavity, this cavity is positioned at the left side of described valve seat, and the top of cavity is formed with a socket in the described valve body outside, described cavity bottom has the air flue that can link with described gas-entered passageway, be provided with the cock that the valve block after the triggering is resetted in the described cavity, following relation is satisfied in the structure of this cock and cavity and the cooperation between the two: when cock is in open mode, between described cock and the cavity axially on be formed with the first passage that can discharge from outlet passageway for combustion gas, when cock is in closed condition, being formed with between described cock and the cavity can be for combustion gas from the second channel of gas-entered passageway on the left of air flue enters valve seat, and valve block is realized resetting under the effect of spring force.
Be provided with seal rubber pad between described cock and the described cavity.
The beneficial effects of the utility model are: simple in structure, cost is low, and when super flow takes place, can cut off source of the gas automatically, and the accident of stopping takes place, and accomplishes the safe gas of using.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
The structural representation of the super flow situation of combustion gas when using for the utility model, Fig. 2 takes place;
Structural representation when Fig. 3 resets for valve block.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of gas cylinder safety valve of the utility model comprises valve body 13, and valve body 13 is provided with suction port 200, air outlet 100 and socket 300; The cavity 310 that is provided with the gas-entered passageway 210 that communicates with described suction port, the outlet passageway 100 that communicates with described air outlet in the described valve body 13 and communicates with described socket.
An end of outlet passageway is provided with valve seat 15 in the described valve body 13, this valve seat is provided with center hole 16, be inserted with an end of a guide rod 11 in this center hole 16, the other end that is positioned at the guide rod of close gas-entered passageway is connected with a valve block 10, be provided with a spring 6 between valve seat and the valve block, these spring 6 one ends link to each other with described valve seat 15, and the other end of spring links to each other with described valve block 10, and described spring housing is located on the guide rod 11; Be provided with the gap that can pass through for the certain flow combustion gas between valve block and the valve seat, this gap can have the size that the spring of different elastic force is regulated the gap by setting, thereby regulates gas flow.
Described cavity 310 is positioned at the left side of described valve seat 15, and the top of cavity is formed with described socket 300 in the described valve body outside, and described cavity bottom has the air flue 12 that can link with described gas-entered passageway; Described socket is provided with tap handle 3, this tap handle below is provided with a push rod 5, described tap handle 3 links to each other with push rod 5 one ends by screw 4, the other end of push rod links to each other with cock 19 in being installed in described cavity, cock 19 tops are formed with cavity, this cavity middle part has a projection, is arranged with pressure spring 2 on this projection; Following relation is satisfied in the structure and the cooperation between the two of described cock 19 and cavity 310: when cock 19 is in open mode, between described cock and the cavity axially on be formed with the first passage 17 (as shown in Figure 2) that can discharge from outlet passageway for combustion gas, when cock is in closed condition, being formed with between described cock and the cavity can be for combustion gas from the second channel 18 (as shown in Figure 3) of gas-entered passageway on the left of air flue enters valve seat, and valve block is realized resetting under the effect of spring force; Be provided with seal rubber pad 14 between described cock 19 and the cavity 310.
As shown in Figure 2, when this safety valves for gas used, its suction port place was inserted with an end coupling 9, and this end coupling is connected with the regulation valve body 7 that links to each other with source of the gas by adjusting screw 8, the sebific duct (not shown) that air outlet connection and gas cooker etc. communicate.When sebific duct was in normal state, cock this moment was in open mode, and the pressure of outlet passageway and gas-entered passageway equates, under the elastic force effect of spring, formed the gap that can pass through for the certain flow combustion gas between valve block and the valve seat to guarantee the proper functioning of gas cooker; When sebific duct explosion occurs, comes off or during abnormal conditions such as gas leakage, the pressure of outlet passageway can be less than the pressure of gas-entered passageway, makes itself and valve seat closure so promote valve block under the pressure effect of gas-entered passageway; As shown in Figure 3, treat that abnormal conditions solve after, cock is threaded to closed position, combustion gas this moment enters the valve seat leftward space by air flue 12 and second channel 18, makes the left and right pressure balance of valve block, under the effect of spring, valve block automatically resets.
Being the utility model preferred embodiment only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.
Claims (4)
1. gas cylinder safety valve, it is characterized in that: comprise valve body with gas-entered passageway and outlet passageway, an end of outlet passageway is provided with valve seat in this valve body, be provided with the valve block that matches with described valve seat near the gas-entered passageway place in the described valve body, be provided with the gap that can supply the certain flow combustion gas to pass through between valve block and the valve seat, when gas flow surpassed the predetermined amount of flow scope, valve block was closed between realization and the valve seat under the effect of combustion gas thrust.
2. gas cylinder safety valve according to claim 1, it is characterized in that: described valve seat is provided with center hole, be inserted with an end of a guide rod in this center hole, the other end of described guide rod links to each other with described valve block, be provided with a spring between valve seat and the valve block, this spring one end links to each other with described valve seat, and the other end of spring links to each other with described valve block, and described spring housing is located on the guide rod.
3. gas cylinder safety valve according to claim 1, it is characterized in that: on described outlet passageway, also be provided with a cavity, this cavity is positioned at the left side of described valve seat, and the top of cavity is formed with a socket in the described valve body outside, described cavity bottom has the air flue that can link with described gas-entered passageway, be provided with the cock that the valve block after the triggering is resetted in the described cavity, following relation is satisfied in the structure of this cock and cavity and the cooperation between the two: when cock is in open mode, between described cock and the cavity axially on be formed with the first passage that can discharge from outlet passageway for combustion gas, when cock is in closed condition, being formed with between described cock and the cavity can be for combustion gas from the second channel of gas-entered passageway on the left of air flue enters valve seat, and valve block is realized resetting under the effect of spring force.
4. gas cylinder safety valve according to claim 3 is characterized in that: be provided with seal rubber pad between described cock and the described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202377620U CN201715053U (en) | 2010-06-25 | 2010-06-25 | Fuel gas vessel safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202377620U CN201715053U (en) | 2010-06-25 | 2010-06-25 | Fuel gas vessel safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715053U true CN201715053U (en) | 2011-01-19 |
Family
ID=43461049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202377620U Expired - Fee Related CN201715053U (en) | 2010-06-25 | 2010-06-25 | Fuel gas vessel safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715053U (en) |
-
2010
- 2010-06-25 CN CN2010202377620U patent/CN201715053U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202691204U (en) | Overflowing pressure difference self-closing valve | |
| CN201218345Y (en) | Self-closing valve for gas leakage, gas ultra-underpressure and hose drop-off of household pipe | |
| CN102748513A (en) | Over-flowing-pressure-difference self-closing valve | |
| CN201715053U (en) | Fuel gas vessel safety valve | |
| CN101551062B (en) | Multifunctional fuel safety protecting device | |
| CN203413191U (en) | Self-adapted switching valve | |
| CN202545919U (en) | Large-differential-pressure two-stage gas pressure regulator | |
| CN102720864A (en) | Valve sheet type fuel gas overflowing differential pressure sensor | |
| CN111720600A (en) | Pneumatic/safety valve for positive pressure explosion prevention | |
| CN205260943U (en) | Natural gas bottle valve | |
| CN205120180U (en) | Leak protection circulation of vital energy in wrong direction flows protection gas table | |
| CN102720872A (en) | Multifunctional gas safety protection device | |
| CN103644347A (en) | Fuel gas valve | |
| CN2913781Y (en) | Pressure regulating dump valve | |
| CN204852434U (en) | Pressure regulating is from opening formula plug valve | |
| CN204533705U (en) | A kind of family expenses anti-explosion gas emergency cut-off calutron | |
| CN202674422U (en) | Safe blow off valve | |
| CN102777646A (en) | Vehicular compressed natural gas bottle flow-limiting valve | |
| CN207080662U (en) | Combustion gas high-pressure and overflowing stop valve | |
| CN206386538U (en) | A kind of high-voltage safety diffusion valve | |
| CN202605473U (en) | Oxygen secondary depression tank | |
| CN202228214U (en) | Pressure regulating and pressure reducing device used for gas vehicle electric control jetting system | |
| CN203384460U (en) | Separator water storage tank water delivery regulating valve control system of direct current unit | |
| CN201836479U (en) | Safety relief device of metal two-way sealing valve cavity | |
| CN203743549U (en) | Pressure reducing and stabilizing valve |
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: 20110119 Termination date: 20110625 |