CN2299984Y - Self-controlling gas valve - Google Patents
Self-controlling gas valve Download PDFInfo
- Publication number
- CN2299984Y CN2299984Y CN 97221797 CN97221797U CN2299984Y CN 2299984 Y CN2299984 Y CN 2299984Y CN 97221797 CN97221797 CN 97221797 CN 97221797 U CN97221797 U CN 97221797U CN 2299984 Y CN2299984 Y CN 2299984Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- barometer
- pipe joint
- steel ball
- limiting device
- 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)
Abstract
The utility model relates to a self-control gas valve which is composed of a valve body (1), a pipe joint (5), a shock sensing device (4), a barometer (3) and a voltage limiting device (2). The pipe joint (5), the shock sensing device (4), the barometer (3) and the voltage limiting device are orderly arranged on the valve body along the gas conveying direction. The valve body, the pipe joint, the barometer and the voltage limiting device are the same with the corresponding components of a universal gas reducing valve. The difference lies in that the shock sensing device is additionally arranged between the pipe joint and the barometer. The shock sensing device is composed of a control button (8), a movable steel ball (7) and a leakproof spring (6). When the movable steel ball senses the external force vibration, being driven by the air pressure, the movable steel ball which is arranged in a gas pipe can automatically block the air source, so the secondary damage generated by the leaked gas combustion explosion can be prevented.
Description
The utility model relates to the gas pipe line control valve.
Traditional coal gas compression release valve can only carry out pressure limiting to the coal gas that source of the gas comes, and can not cut off source of the gas in contingency (explosive accident on fire as coal gas), so often cause secondary damage.
The purpose of this utility model is that a kind of coal gas internally piloted valve will be provided, the coal gas pressure limiting that it can not only be next to source of the gas, and can under the shaking force effect that contingency produces, close source of the gas automatically, thus can prevent the secondary damage that gas leakage produces.
The utility model is made up of valve body, pipe joint, sense shake device, barometer and pressure limiting device.The shape of valve body and general coal gas compression release valve valve body is basic identical.Valve body is equipped with screwed pipe joint successively along airflow direction, sense shake device, barometer and pressure limiting device, and its pipe joint, barometer and pressure limiting device are identical with general pipe joint barometer and pressure limiting device.Different is that sense shake device is housed between pipe joint and barometer.This device is made up of control knob, movable steel ball and leakproof spring again.The control knob is contained on the valve body tracheal wall, and it has one can stretch into endotracheal flexible push rod; Movable steel ball be positioned at the control knob flexible push rod over against the valve body tracheae, by the pore place of its gas shutoff one elastic washer is arranged; The leakproof spring is clamped in air inlet side's one side of movable steel ball, and it should be as far as possible by being bordering on movable steel ball position.
The utlity model has following advantage; It not only has traditional pressure limiting device, can guarantee coal gas source constant pressure air feeding, and because design thoughts shake device, can block source of the gas automatically by air pressure drive activity steel ball under the effect of the shaking force of contingency, prevents gas leakage, avoids secondary damage.
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment;
Fig. 1 is a structural representation of the present utility model
Among the figure 1, valve body 2, pressure limiting device 3, barometer 4, sense shake device 5, pipe joint 6, leakproof spring 7, movable steel ball 8, control knob
As shown in Figure 1, the utility model is made up of valve body (1), pipe joint (5), sense shake device (4), barometer (3) and pressure limiting device (2).Valve body (1) is substantially the same with the shape of general coal gas compression release valve valve body, and the direction of supplying gas in the valve body upper edge is equipped with pipe joint (5), sense shake device (4), barometer (3) and pressure limiting device (2) successively.Its pipe joint (5), barometer (3) and pressure limiting device (2) are identical with pipe joint, barometer and the pressure limiting device of general reduction valve.Different is, between the pipe joint of valve body and barometer a sense shake device (4) is housed.This device is made up of control knob (8), movable steel ball (7) and leakproof spring (6) again.Control knob (8) is contained on the valve body tracheal wall, and it has a flexible push rod that can stretch in the pipe; Movable steel ball (7) be positioned at the control knob flexible push rod over against the valve body tracheae, by the pore place of its gas shutoff one elastic washer is arranged; Leakproof spring (6) is clamped on a side of the air inlet top of movable steel ball, and it should approach movable steel ball position as far as possible, and it prevents that steel ball from dropping out usefulness from suction port.
Claims (1)
1, coal gas internally piloted valve, form by valve body (1), pipe joint (5), sense shake device (4), barometer (3) and pressure limiting device (2), the direction of supplying gas in valve body (1) upper edge is being adorned pipe joint (5), sense shake device (4), barometer (3) and pressure limiting device (2) successively, its valve body (1), pipe joint (5), barometer (3) and pressure limiting device (2) are identical with valve body, pipe joint, barometer and the pressure limiting device of general coal gas compression release valve, it is characterized in that; One sense shake device (4) is housed between the pipe joint (5) of valve body and barometer (3), this device is made up of control knob (8), movable steel ball (7) and leakproof spring (6) again, control connects to be turned round (8) and is contained on the valve body tracheal wall, it has one can stretch into endotracheal flexible push rod, movable steel ball (7) be positioned at the control knob flexible push rod over against the valve body tracheae, the leakproof spring is clamped on a side of the suction port side of movable steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221797 CN2299984Y (en) | 1997-07-21 | 1997-07-21 | Self-controlling gas valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97221797 CN2299984Y (en) | 1997-07-21 | 1997-07-21 | Self-controlling gas valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2299984Y true CN2299984Y (en) | 1998-12-09 |
Family
ID=33937068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97221797 Expired - Fee Related CN2299984Y (en) | 1997-07-21 | 1997-07-21 | Self-controlling gas valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2299984Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680602B (en) * | 2007-05-29 | 2011-05-25 | Mets股份有限公司 | Digital safety device for a gas valve |
-
1997
- 1997-07-21 CN CN 97221797 patent/CN2299984Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680602B (en) * | 2007-05-29 | 2011-05-25 | Mets股份有限公司 | Digital safety device for a gas valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |