CN203656287U - Automatic emergency cut-off valve - Google Patents
Automatic emergency cut-off valve Download PDFInfo
- Publication number
- CN203656287U CN203656287U CN201320878823.5U CN201320878823U CN203656287U CN 203656287 U CN203656287 U CN 203656287U CN 201320878823 U CN201320878823 U CN 201320878823U CN 203656287 U CN203656287 U CN 203656287U
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- valve
- spring
- cut
- seat
- head bolt
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Abstract
The utility model discloses an automatic emergency cut-off valve characterized by comprising a hexagonal head bolt (1), a flat washer (2), a lower valve cover, an O-shaped seal ring (4), a guide vane, a valve body, a valve seat, an O-shaped seal ring (8), a hexagonal cylindrical head screw(9), a rubber pad, a valve core, a valve rod assembly, a main spring, an upper valve cover, a hexagonal cylindrical screw, a spring seat, a guide nut, a chain, an unhooking device, a command valve lower valve cover, a pneumatic thin film, a hexagonal head bolt (22), a flat washer (23), a command valve cover, a control box, a handle assembly, a long pushing cylinder, a top block, a short pushing cylinder, a command valve cover, a lower spring seat, an adjusting spring, an upper spring, an end cover, an adjusting bolt, a protective cover, a hexagonal bolt (37) and a flat washer (38). The automatic emergency cut-off valve possesses functions of fuel gas overpressure monitoring or decompression cut-off (manual reset); when system pressure is higher or lower than a preset pressure value of the cut-off valve, airflow can be quickly cut off via the cut-off valve, so safe gas usage is guaranteed; and the automatic emergency cut-off valve is suitable for purified natural gas, artificial gas, liquefied petroleum gas and other non-corrosive gases.
Description
Technical field
The utility model relates to a kind of cut-off valve, is specifically a kind of automatic emergency cut-off valve.
Background technique
Gas safety cut-off valve is applied to and in gas transmission and distribution system, does emergency cut-off protection.There is the function that monitoring gaseous-pressure superpressure or decompression are cut off.Many emergency shutoff devices are there are at present; Such as:
The Emergeny Cutoff Valves of the patent No. 201110221990.8, comprise valve body, flap and valve gap, described flap is piston type flap, on the upper left quarter valve body of valve body, be provided with the left Vertical Channel being communicated with left chamber, on the left part valve gap of valve gap, be provided with the left inverse u shape passage that right mouth is communicated with upper left chamber, the Zuo Kou of left inverse u shape passage is communicated with left Vertical Channel, is provided with left one-way valve in left Vertical Channel, on the upper right quarter valve body of valve body, be provided with the right Vertical Channel being communicated with right chamber, on the right part valve gap of valve gap, be provided with the right inverse u shape passage that left mouth is communicated with epicoele, the You Kou of right inverse u shape passage is communicated with right Vertical Channel, in right Vertical Channel, be provided with right one-way valve, center at flap offers pilot hole, be provided with low tension magnetic-type Telescopic rod device on the top of valve gap, the flexible rod of low tension magnetic-type flexible rod puts in epicoele through valve gap, flexible rod and valve gap slip Fluid Sealing, be provided with the pilot head of mating with pilot hole in the underpart of flexible rod.
The gas emergency cut-off valve of patent No. 201220537501.X, comprise valve body and be positioned at the valve gap that valve body top is spirally connected, valve gap top is provided with base, base and the shell formation cavity volume that is spirally connected, the coil that the built-in and outside electric control element of cavity volume is electrically connected, astragal is wound in the outer surface of guard grating, central rotating shaft lower end is positioned at the outlet chamber of valve body, upper end extension exposes to shell and handle ball bolt, is disposed with movable part, electromagnetism battery core, little spring, pearl cutting ferrule, spring and Sealing on central rotating shaft.Efficiently solve in background technique can not manual-lock problem, and operation is convenient, simple in structure, low cost of manufacture, effectively ensures the feature that the accidents such as explosion-proof, anti-leak occur.
The gas emergency cut-off valve of the patent No. 201220499194.0, it is characterized in that electromagnetism steel ball controller is arranged in push rod, in non-magnetic tube, be provided with valve rod assembly, valve rod assembly is made up of upper valve rod and lower valve rod, in valve rod assembly, be provided with moving iron core and lower spring, through hole is symmetrically arranged with a pair of steel ball, in valve rod assembly, upside is provided with upper spring and push rod, valve rod assembly upper end is connected with handle, below guard shield A, in the periphery of push rod, be provided with explosion-proof coil, between guard shield A and explosion-proof coil, be provided with guard shield B, below explosion-proof coil, be provided with base, base is arranged on valve body, on push rod below base, be provided with spring, push rod runs through explosion-proof coil up and down, base, bonnet and spring, above valve body, be also provided with bonnet, in valve body, be provided with valve disc group, valve disc group is connected with push rod.The utility model has adopted steel ball mechanism controls device, and valve mechanism is simple, opens and closes rapidly flexibly, and action stability is good, good airproof performance, is applicable to use in various mesolow gas ductworks.
The gas emergency cut-off valve device of the patent No. 200420086802.0, it be retainer be installed on valve body upper end, in-built thermal sensible element regulates by screw.Valve body lower end is connected with valve gap, spring and spool are housed in valve body.Spool top contacts with thermal sensible element, the pressured contracting spring supporting in lower end.Spool guide rod external-cover-type silicone rubber O-ring contacts with body cavity.When ambient temperature is during higher than thermal sensible element setting temperature, thermal sensible element breaks voluntarily, and spring promotes rapidly spool, valve closing.When being specially adapted in civilian family the urgencies such as naked light occur, this cut-off valve automatically cuts off combustion gas, to reach safe object.
Model utility content
The purpose of this utility model is to provide a kind of automatic emergency cut-off valve at this; There is monitoring gaseous-pressure superpressure or decompression and cut off the function of (manual reset); When system pressure is during higher or lower than cut-off valve setup pressure value, cut-off valve can cut off rapidly air-flow, to ensure safe use gas; Be applicable to purified natural gas, artificial coal gas, liquefied petroleum gas (LPG) and other non-corrosiveness gas.
The utility model is to realize like this, construct a kind of automatic emergency cut-off valve, it is characterized in that: comprise hexagon head bolt 1, plain washer 2, bottom flange, O RunddichtringO 4, stator, valve body, valve seat, O RunddichtringO 8, hexagon socket cap head screw 9, rubber cushion, spool, valve rod assembly, main spring, bonnet, hexagon socket cap head screw, spring seat, spigot nut, chain, tripping gear, command valve bottom flange, air bladder, hexagon head bolt 22, plain washer 23, command valve valve gap, Direct box, Handleset, the long thick stick that promotes, jacking block, short promotion thick stick, commander's valve gap, lower spring cup, Regulation spring, upper spring seat, end cap, adjusting screw rod, guard shield, hexagon head bolt 37, plain washer 38,
O RunddichtringO 4 fixing by hexagon head bolt 1 and plain washer 2 is set between bottom flange and valve body; Valve inner is provided with valve seat, and O RunddichtringO 8 is between valve body, valve seat, and spool is by arranging hexagon socket cap head screw 9, rubber cushion on valve seat, and stator is positioned in valve seat, and described main spring is positioned on valve rod assembly, and its upper end is spring seat;
Fixing by hexagon socket cap head screw 15 between bonnet and valve body; The upper end of valve rod assembly is stretched out bonnet and is connected chain, and lower end is positioned in spool; The upper end of valve rod assembly is stretched out bonnet place and is provided with spigot nut; Chain is connected with tripping gear;
Direct box is fixed on bonnet upper end by hexagon head bolt 37, plain washer 38;
Between command valve bottom flange and command valve valve gap, fix by hexagon head bolt 22, plain washer 23; Long promotion thick stick, jacking block, short promotion thick stick are positioned in Direct box, are provided with Handleset on Direct box;
Regulation spring is arranged between lower spring cup and upper spring seat, and lower spring cup, Regulation spring, upper spring seat entirety are positioned in commander's valve gap, and the end of commander's valve gap arranges end cap, and guard shield is arranged on end cap, and adjusting screw rod is positioned at guard shield.
The utility model tripping mechanism is made up of cam and three de-mouthful arms, is separately provided with manual-lock knob.Sensor is made up of air bladder, collision block and pressure setting spring assembly; Not normal when signal pressure, exceed or during lower than pressure set points, sensor air bladder drives collision block to move, make tripping mechanism action, main valve is closed rapidly; Reach the effect of the upstream devices such as protection pressure governor and metrical instrument.
The utility model has the advantage of: automatic emergency cut-off valve described in the utility model; There is monitoring gaseous-pressure superpressure or decompression and cut off the function of (manual reset); When system pressure is during higher or lower than cut-off valve setup pressure value, cut-off valve can cut off rapidly air-flow, to ensure safe use gas; Be applicable to purified natural gas, artificial coal gas, liquefied petroleum gas (LPG) and other non-corrosiveness gas.
There is operation precision high, the feature such as corresponding speed is fast; Utilize webmaster self pressure, need not external energy;
Install, debug easy, operation, easy to maintenance; Working environment is strong, in dirtier gas medium, can normally work.Applicable media: purified natural gas, artificial coal gas, liquefied petroleum gas (LPG) and other non-corrosiveness gas.
Brief description of the drawings
Fig. 1 makes the utility model automatic emergency cut-off valve structural representation
Wherein: hexagon head bolt 1, plain washer 2, bottom flange 3, O RunddichtringO 4, stator 5, valve body 6, valve seat 7, O RunddichtringO 8, hexagon socket cap head screw 9, rubber cushion 10, spool 11, valve rod assembly 12, main spring 13, bonnet 14, hexagon socket cap head screw 15, spring seat 16, spigot nut 17, chain 18, tripping gear 19, command valve bottom flange 20, 21, air bladder, hexagon head bolt 22, plain washer 23, command valve valve gap 24, Direct box 25, Handleset 26, the long thick stick 27 that promotes, jacking block 28, short promotion thick stick 29, commander's valve gap 30, lower spring cup 31, Regulation spring 32, upper spring seat 33, end cap 34, adjusting screw rod 35, guard shield 36, hexagon head bolt 37, plain washer 38.
Embodiment
Below in conjunction with accompanying drawing 1, the utility model is elaborated, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in the figure, the utility model provides a kind of automatic emergency cut-off valve at this, has monitoring gaseous-pressure superpressure or decompression and cuts off the function of (manual reset); When system pressure is during higher or lower than cut-off valve setup pressure value, cut-off valve can cut off rapidly air-flow, to ensure safe use gas; Be applicable to purified natural gas, artificial coal gas, liquefied petroleum gas (LPG) and other non-corrosiveness gas.
As shown in Figure 1: the utility model comprises hexagon head bolt 1, plain washer 2, bottom flange 3, O RunddichtringO 4, stator 5, valve body 6, valve seat 7, O RunddichtringO 8, hexagon socket cap head screw 9, rubber cushion 10, spool 11, valve rod assembly 12, main spring 13, bonnet 14, hexagon socket cap head screw 15, spring seat 16, spigot nut 17, chain 18, tripping gear 19, command valve bottom flange 20, air bladder 21, hexagon head bolt 22, plain washer 23, command valve valve gap 24, Direct box 25, Handleset 26, the long thick stick 27 that promotes, jacking block 28, short promotion thick stick 29, commander's valve gap 30, lower spring cup 31, Regulation spring 32, upper spring seat 33, end cap 34, adjusting screw rod 35, guard shield 36, hexagon head bolt 37, plain washer 38.
In the utility model, O RunddichtringO 4 fixing by hexagon head bolt 1 and plain washer 2 is set between bottom flange 3 and valve body 6; Valve body 6 inside are provided with valve seat 7, O RunddichtringO 8 is between valve body 6, valve seat 7, and spool 11 is by arranging hexagon socket cap head screw 9, rubber cushion 10 on valve seat 7, and stator 5 is positioned at 7 li of valve seats, described main spring 13 is positioned on valve rod assembly 12, and its upper end is spring seat (16);
Fixing by hexagon socket cap head screw 15 between bonnet 14 and valve body 6; The upper end of valve rod assembly 12 is stretched out bonnet 14 and is connected chain 18, and lower end is positioned at 11 li of spools; The upper end of valve rod assembly 12 is stretched out bonnet 14 places and is provided with spigot nut 17; Chain 18 is connected with tripping gear 19.
Aeration step:
(a) first shutdown signal pipe air intake valve, open detection mouth valve, by emptying the gas in sensor air bladder chamber.
(b) handle is thought to opening direction slow circumvolve 20-40 degree, paid flap to open internal bypass, make the pressure balance of cut-off valve upstream and downstream, whether normal observe whole system simultaneously.
(c) be rotated further handle main valve clack and open and make and buckle on tripping mechanism, to keep its opening state, then close and detect a mouthful cock.
Cutter operating pressure is set: first open the operating pressure setting spring protecting cover of sensor end, plug screw is adjusted in precession, and cut-off valve operating pressure setting value raises, otherwise reduces.
The reset operation of cut-off valve: after cut-off valve cut-out is closed, should check out superpressure reason.After treated solution, can carry out reset operation, method is as follows:
(a) close inlet/outlet valve;
(b) check whether outlet pressure value is in normal range (NR), when normal, can carry out next step operation;
(c) grasp reseting handle, to pressing to level, and confirm the upper button of tripping mechanism;
(d) slowly open inlet valve, as open to such an extent that too fast cut-off valve may be cut off again.
Correlation technique parameter
| Operating pressure scope | P：0.001-1.2MPa |
| Operation precision | ±5% |
| Reaction time | ≤1sec |
| Operating temperature | -20-60 degree |
| Pressure rating | PN1.6 MPa、2.5 MPa、4.0 MPa、6.4 MPa、10.0 MPa |
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to these embodiments' multiple amendment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. an automatic emergency cut-off valve, is characterized in that: comprise hexagon head bolt (1), plain washer (2), bottom flange (3), O RunddichtringO (4), stator (5), valve body (6), valve seat (7), O RunddichtringO (8), hexagon socket cap head screw (9), rubber cushion (10), spool (11), valve rod assembly (12), main spring (13), bonnet (14), hexagon socket cap head screw (15), spring seat (16), spigot nut (17), chain (18), tripping gear (19), command valve bottom flange (20), air bladder (21), hexagon head bolt (22), plain washer (23), command valve valve gap (24), Direct box (25), Handleset (26), the long thick stick (27) that promotes, jacking block (28), short promotion thick stick (29), commander's valve gap (30), lower spring cup (31), Regulation spring (32), upper spring seat (33), end cap (34), adjusting screw rod (35), guard shield (36), hexagon head bolt (37), plain washer (38),
O RunddichtringO (4) fixing by hexagon head bolt (1) and plain washer (2) is set between bottom flange (3) and valve body (6); Valve body (6) inside is provided with valve seat (7), O RunddichtringO (8) is positioned between valve body (6), valve seat (7), spool (11) is by arranging hexagon socket cap head screw (9), rubber cushion (10) on valve seat (7), it is inner that stator (5) is positioned at valve seat (7), it is upper that described main spring (13) is positioned at valve rod assembly (12), and its upper end is spring seat (16);
Fixing by hexagon socket cap head screw (15) between bonnet (14) and valve body (6); The upper end of valve rod assembly (12) is stretched out bonnet (14) and is connected chain (18), and it is inner that lower end is positioned at spool (11); The upper end of valve rod assembly (12) is stretched out bonnet (14) and is located to be provided with spigot nut (17); Chain (18) is connected with tripping gear (19);
Direct box (25) is fixed on bonnet (14) upper end by hexagon head bolt (37), plain washer (38);
Between command valve bottom flange (20) and command valve valve gap (24), fix by hexagon head bolt (22), plain washer (23); It is inner that length promotes thick stick (27), jacking block (28), short promotion thick stick (29) is positioned at Direct box (25), is provided with Handleset (26) on Direct box (25);
Regulation spring (32) is arranged between lower spring cup (31) and upper spring seat (33), it is inner that lower spring cup (31), Regulation spring (32), upper spring seat (33) entirety are positioned at commander's valve gap (30), the end of commander's valve gap (30) arranges end cap (34), it is upper that guard shield (36) is arranged on end cap (34), and adjusting screw rod (35) is positioned at guard shield (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878823.5U CN203656287U (en) | 2013-12-30 | 2013-12-30 | Automatic emergency cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878823.5U CN203656287U (en) | 2013-12-30 | 2013-12-30 | Automatic emergency cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656287U true CN203656287U (en) | 2014-06-18 |
Family
ID=50922675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878823.5U Withdrawn - After Issue CN203656287U (en) | 2013-12-30 | 2013-12-30 | Automatic emergency cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656287U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711956A (en) * | 2013-12-30 | 2014-04-09 | 乐山市山鹰模具有限责任公司 | Automatic emergency shut-off valve |
| CN105276266A (en) * | 2014-07-11 | 2016-01-27 | 杨永坚 | Spring type emergency cut-off valve |
| CN105402457A (en) * | 2015-10-22 | 2016-03-16 | 四川格林流体控制设备有限公司 | Stop valve for storage tank |
| CN106382408A (en) * | 2016-12-12 | 2017-02-08 | 乐山川天燃气输配设备有限公司 | Overpressure and underpressure cutting type pressure regulator |
-
2013
- 2013-12-30 CN CN201320878823.5U patent/CN203656287U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711956A (en) * | 2013-12-30 | 2014-04-09 | 乐山市山鹰模具有限责任公司 | Automatic emergency shut-off valve |
| CN105276266A (en) * | 2014-07-11 | 2016-01-27 | 杨永坚 | Spring type emergency cut-off valve |
| CN105402457A (en) * | 2015-10-22 | 2016-03-16 | 四川格林流体控制设备有限公司 | Stop valve for storage tank |
| CN105402457B (en) * | 2015-10-22 | 2018-05-08 | 四川格林流体控制设备有限公司 | A kind of tank cutoff valve |
| CN106382408A (en) * | 2016-12-12 | 2017-02-08 | 乐山川天燃气输配设备有限公司 | Overpressure and underpressure cutting type pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |