CN113983215A - Prevent mistake and spout diaphragm type deluge valve - Google Patents
Prevent mistake and spout diaphragm type deluge valve Download PDFInfo
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- CN113983215A CN113983215A CN202111405533.4A CN202111405533A CN113983215A CN 113983215 A CN113983215 A CN 113983215A CN 202111405533 A CN202111405533 A CN 202111405533A CN 113983215 A CN113983215 A CN 113983215A
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- valve
- deluge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/0453—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the member being a diaphragm
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention relates to a diaphragm type deluge valve for preventing mis-spraying, which comprises a hydraulic control main valve consisting of a valve body, a valve shaft diaphragm, a valve clack and a valve seat, and further comprises a screw port check valve and a matched pipeline which are respectively communicated with a control cavity and an inlet cavity of the hydraulic control main valve, and a screw port electric ball valve, one end of which is communicated with the control cavity of the hydraulic control main valve, and the other end of which is emptied, wherein the screw port electric ball valve is connected with a central control. Compared with the prior art, the invention has the advantages of simple structure, low cost, high reliability, false spraying prevention, reset prevention and the like.
Description
Technical Field
The invention relates to the technical field of diaphragm type deluge valves, in particular to an anti-misspray diaphragm type deluge valve.
Background
The market deluge valve generally divides into two types of diaphragm type control and piston cylinder control, the piston cylinder control influences the action of the piston because the incrustation scale often produces in the cylinder body, so the diaphragm type control is becoming more and more popular in the market, but the deluge valve has a mandatory regulation in function international, and must have "prevent the reset function", once the deluge valve is controlled to open automatically in the deluge valve, the deluge valve can not be closed again in the central control, the deluge valve can not be closed even when the power is cut off, the deluge valve can only be closed manually on site, so-called prevent the reset function, in order to achieve this function, the external piping and the annex design of the deluge valve are very complicated, and at the same time, the drain valve must be set, in addition have strict requirements for servo pressure, must be stable (also have the regulation on the national standard, otherwise can produce the mistake and spray the risk), but the pressure is difficult to be stable on-site working condition, for example, a deluge valve is working, the dynamic pressure descends, however, when the operation of the deluge valve stops closing, the static pressure rises again, and pressure fluctuation is generated at the inlet end of the deluge valve under the servo condition on the same pipeline, so that the risk of mis-spraying is generated, and property loss is also caused by mis-spraying.
Chinese patent CN207520505U discloses a diaphragm type deluge alarm valve, which comprises a main diaphragm valve and an external solenoid valve, wherein a reset-preventing mechanism (provided with a water inlet valve) is also installed, and the valve has a reset-preventing function, but when the pressure at the inlet of the main valve drops to reach the opening point of the drain valve, the drain valve is opened, and when the pressure at the inlet of the main valve rises again, the drain valve cannot be automatically closed, the control chamber cannot be pressurized, the main valve is opened for mis-spraying, so-called pressure fluctuation generates mis-spraying, and in addition, the solenoid valve is easy to block and leak water, so that the control chamber is also subjected to mis-spraying due to pressure loss; the main valve adopts a diaphragm valve of a common type, and the pressure bearing of the diaphragm at the outlet end of the main valve is unbalanced in a closed state, so that the diaphragm is easy to break and break.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an anti-misspray diaphragm type deluge valve.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a prevent that mistake spouts diaphragm type deluge valve, includes the hydraulic control main valve that comprises valve body, valve shaft, diaphragm, valve clack and disk seat, its characterized in that, this deluge valve still include respectively with the silk mouthful check valve and the supporting pipeline of hydraulic control main valve control chamber with the import chamber intercommunication to and one end and the silk mouthful electric ball valve of hydraulic control main valve control chamber intercommunication other end evacuation, silk mouthful electric ball valve be connected with well accuse.
The inlet of the screw port check valve is communicated with the inlet cavity, the outlet of the screw port check valve is communicated with the control cavity, and the minimum drift diameter of the connecting pipe is smaller than that of the screw port electric ball valve.
The screw electric ball valve is connected to the central control only through two electric wires of 'on' and 'zero' and abandons a 'off' wire, so that the central control is prevented from closing the screw electric ball valve in a power-off mode, and the hydraulic control main valve is only closed in a manual mode, so that the anti-resetting function is realized.
The screw electric ball valve is a two-way ball valve with an electric actuator, and the electric actuator has the functions of power failure and position protection and hand and electric operation.
The deluge valve also includes the anti-seepage device mounted on outlet end of the main valve of hydraulic control, in the non-pressure state, the anti-seepage device is in the open state, when the main valve of hydraulic control is sealed and leaked, the water is discharged through the anti-seepage device, after the main valve of hydraulic control is opened, the outlet end produces the pressure, the anti-seepage device closes automatically.
The deluge valve also comprises a hydraulic alarm bell connected with the outlet end of the hydraulic control main valve.
The deluge valve also comprises a pressure switch arranged at the outlet end of the hydraulic control main valve, and the pressure switch is connected with the central control and used for sending a signal that the hydraulic control main valve is opened to the central control.
The deluge valve also includes a pressure gauge in communication with the inlet chamber for displaying the servo pressure of the deluge valve.
The deluge valve also comprises a threaded three-way ball valve, a first port of the threaded three-way ball valve is communicated with the hydraulic alarm bell, a second port of the threaded three-way ball valve is communicated with the inlet cavity, and a third port of the threaded three-way ball valve is communicated with the anti-seepage device.
The control process of the deluge valve comprises
a. Servo state
When the screw port electric ball valve is in a closed state, the inlet cavity and the control cavity are communicated all the time through the screw port check valve, the pressure is equal, and the area of the diaphragm pressure plate of the hydraulic control main valve is larger than that of the valve clack, so that the hydraulic control main valve is in the closed state and cannot be opened under the action of instant pressure fluctuation, and the purpose of preventing false spraying is achieved;
b. water spraying fire fighting state
When a fire alarm signal is received, the central control automatically opens the screw electric ball valve, and as the area of the water inlet pipe of the control cavity is far smaller than the diameter area of the screw electric ball valve, namely the drainage area, the control cavity automatically releases pressure, at the moment, the hydraulic control main valve automatically opens to spray water, the anti-leakage device automatically closes, the pressure switch senses the pressure at the water outlet end of the hydraulic control main valve and sends a signal to the central control, so that the hydraulic control main valve is opened to extinguish the fire;
c. anti-reset function
When the deluge valve enters a water spray fire fighting state, the electric wire connected with the central control of the screw port electric ball valve is only connected with zero two electric wires, so the central control cannot close the screw port electric ball valve in an electric control mode, the screw port electric ball valve has a position retaining function, the original open state is kept in a power-off state, and only when the fire extinguishing is finished, the screw port electric ball valve is manually closed on site, so that a hydraulic control main valve automatically enters a servo state to realize an anti-reset function;
d. control cavity pressure maintaining function
In order to prevent the phenomenon that the control cavity is mistakenly sprayed for a short time due to the fact that water is arranged in the control cavity when water is supplied again after maintenance and water cut-off, the threaded check valve arranged at the water inlet end of the control cavity guarantees that water in the control cavity cannot be lost when water is cut off, and therefore the phenomenon that the control cavity is mistakenly sprayed for a short time when water is supplied is eliminated.
Compared with the prior art, the invention has the following advantages:
the anti-misspray diaphragm type deluge valve overcomes the defects that a deluge valve in the existing market has complex piping, high cost and is easy to misspray, high use requirement, low reliability and the like, the function of preventing misspray under instant pressure fluctuation is realized by arranging the communication control cavity, the inlet pipe area of the control cavity A is far smaller than the drift diameter area of the screw electric ball valve, the valve opening speed of a main valve is effectively ensured, the valve opening speed is ensured by arranging the valve with the position keeping function, only two lines of 'opening' and 'zero' are connected into the electric screw electric ball valve, and a 'closing' line is abandoned, so that the main valve can be opened in an electric or manual mode when being opened, but the valve is closed and only can be manually closed, and further the anti-resetting function is realized, and the anti-misspray diaphragm type deluge valve has the advantages of simple structure, low cost and high reliability.
Drawings
Fig. 1 is a schematic diagram of a deluge valve piping.
FIG. 2 is a main valve structure view.
The notation in the figure is:
1. the hydraulic control valve comprises a hydraulic control main valve 2, a threaded check valve 3, a threaded electric ball valve 4, a hydraulic alarm bell 5, a pressure switch 6, a pressure gauge 7, an anti-leakage device 1-1, a valve body 1-2, a valve cover 1-3, a valve shaft 1-4, a diaphragm 1-5, a diaphragm pressing plate 1-6, a valve flap 1-7, a valve seat 1-8, a spring A, a control cavity B, an inlet cavity C and an outlet cavity C.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 1, the present invention provides a diaphragm type deluge valve for preventing misspray, which is used to overcome the disadvantages of complicated piping, high cost, easy misspray, high use requirement, low reliability, etc. existing deluge valves in the market, the diaphragm type deluge valve for preventing misspray comprises a hydraulic control main valve 1, and a threaded check valve 2, a threaded electric ball valve 3, a hydraulic alarm bell 4, a pressure switch 5, a pressure gauge 6, an anti-leakage device 7, a threaded three-way ball valve, a two-way ball valve, a filter and some pipe fittings, which are connected with the outside of the hydraulic control main valve.
The hydraulic control main valve 1 consists of a valve body 1-1, a valve cover 1-2, a valve shaft 1-3, a diaphragm 1-4, a diaphragm pressing plate 1-5, a valve clack 1-6 and a valve seat 1-7, wherein the upper part of the diaphragm 1-4 is called a control cavity A; an inlet cavity B is arranged between the valve seat 1-7 and the inlet end of the valve body 1-1; between the valve seat 1-7 and the outlet end of the valve body 1-1 is an outlet chamber C, as shown in fig. 2.
The screw port check valve 2 is in an axial flow type soft sealing type and is connected between the inlet end of the hydraulic control main valve 1 and the control cavity A, the inlet of the screw port check valve is communicated with the inlet cavity B, the outlet of the screw port check valve is communicated with the control cavity A, and the minimum drift diameter of a connecting piping is smaller than half of the drift diameter of the screw port electric ball valve 3.
3 one end connection control chamber A of screw mouth electric ball valve, evacuation processing is done to one end, specifically is furnished with electric actuator's two-way ball valve, and electric actuator has outage fender position function, possesses hand, electric operation function simultaneously.
The hydraulic alarm bell 4 is connected with the outlet end of the hydraulic control main valve 1, water is automatically drained when pressure is sensed, and once water flows through the alarm bell, the hydraulic alarm bell gives out a ring alarm.
The pressure switch 5 sends an electric signal through pressure induction, the pressure switch 5 is installed at the outlet end of the hydraulic control main valve 1, and when the hydraulic control main valve 1 is opened, the pressure switch 5 sends a signal to the central control to inform that the hydraulic control main valve 1 is opened.
The pressure gauge 6 is connected to the inlet chamber B for displaying the servo pressure of the deluge valve.
The anti-seepage device 7 is mounted at the outlet end of the hydraulic control main valve 1, and in a non-pressure state, the device is in an open state, water is discharged through the device once the main valve is sealed and leaks, and the device is automatically closed once the hydraulic control main valve 1 is opened and the outlet generates pressure.
This prevent mistake and spout diaphragm type deluge valve's concrete control process includes:
1. servo state
When the screw electric ball valve 3 is in a closed state, because the inlet cavity B and the control cavity A of the hydraulic control main valve 1 are communicated with the pipeline through the screw check valve 2 and the pressure is equal, and because the area of the diaphragm pressure plate 1-5 is larger than the area of the valve clack 1-6 when the hydraulic control main valve 1 is designed, the hydraulic control main valve 1 is in a closed state and cannot be opened all the time under instant pressure fluctuation, and the purpose of preventing false spraying is achieved.
2. Water spraying fire fighting state
Once a fire alarm signal is generated, the central control automatically opens the screw electric ball valve 3, the control cavity a of the hydraulic control main valve 1 automatically releases pressure (although the control cavity a has water introduced from the inlet end of the hydraulic control main valve 1 through the screw check valve 2, the area of the water inlet pipe of the control cavity a is far smaller than the diameter area (water drainage area) of the screw electric ball valve 3, so that the control cavity a cannot generate pressure to ensure the valve opening speed of the hydraulic control main valve 1), the hydraulic control main valve 1 automatically opens to spray water, the anti-leakage device 7 automatically closes, and the pressure switch 5 senses the pressure to send a signal to the central control, which indicates that the hydraulic control main valve 1 opens to extinguish the fire.
3. Anti-reset function
The deluge valve standard stipulates once the deluge valve enters the water spray fire extinguishing state, the central control can't close the deluge valve, can't use the power-off method to close the deluge valve either, namely require to prevent the deluge valve from resetting accidentally in the fire extinguishing process, because the electric wire that the electric ball valve 3 of the silk mouth requires to insert the central control in the invention is only connected "open" and "zero" two lines, so the central control can't close the electric ball valve 3 of the silk mouth, because the electric ball valve 3 of the silk mouth has the function of keeping a position, will keep the original open state if the power-off, only when putting out a fire and finishing, the man comes the scene to close the electric ball valve 3 of the silk mouth manually, make the main valve 1 of hydraulic control enter the servo state automatically, has realized the function of preventing resetting.
4. Control cavity pressure maintaining function
In order to prevent the phenomenon of mistaken spraying in a short time due to the fact that water is arranged in the main valve control cavity A when water is supplied again after maintenance and water cut-off, the threaded check valve 2 is arranged at the water inlet end of the main valve control cavity A, so that the phenomenon of mistaken spraying in a short time when water is supplied is eliminated, and the water in the control cavity A cannot be lost when water is cut off.
To sum up, the anti-false-spraying diaphragm type deluge valve realizes the function of preventing the false spraying under the instant pressure fluctuation by arranging the communication control cavity, the inlet cavity and the screw port check valve, effectively ensures the valve opening speed of the main valve by arranging the area of the water inlet pipe of the control cavity A to be far smaller than the drift diameter area of the screw port electric ball valve, and abandons the 'closing' line by arranging the screw port electric ball valve which has the position-keeping function and only has 'opening' and 'zero' two lines to be connected into the electric control, so that the main valve can be opened in an electric or manual mode, but the valve can only be manually closed when the main valve is closed, and further the anti-resetting function is realized.
Claims (10)
1. The utility model provides a prevent mistake and spout diaphragm type deluge valve, includes hydraulic control main valve (1) that comprises valve body (1-1), valve shaft (1-3), diaphragm (1-4), valve clack (1-6) and disk seat (1-7), its characterized in that, this deluge valve still include respectively with hydraulic control main valve (1) control chamber (A) and the silk mouth check valve (2) and the supporting pipeline of import chamber (B) intercommunication to and one end and hydraulic control main valve (1) control chamber (A) intercommunication other end evacuation's silk mouth electric ball valve (3), silk mouth electric ball valve (3) be connected with well accuse.
2. A valve as claimed in claim 1 wherein the threaded check valve (2) has an inlet communicating with the inlet chamber (B) and an outlet communicating with the control chamber (a), the minimum diameter of the connecting tubing being smaller than the diameter of the threaded electric ball valve (3).
3. A mis-spraying prevention diaphragm type deluge valve according to claim 1, wherein the screw electric ball valve (3) is connected to the central control only by opening and zero two electric wires and abandons the closing wire, so as to prevent the central control from closing the screw electric ball valve (3) by the way of power failure, thereby realizing the function of anti-reset.
4. A valve as claimed in claim 1, wherein the threaded electric ball valve (3) is a two-way ball valve with an electric actuator, and the electric actuator has a function of power-off and position-keeping and simultaneously has a function of manual and electric operation.
5. A mis-spraying prevention diaphragm type deluge valve according to claim 1, wherein the deluge valve further comprises an anti-seepage device (7) installed at the outlet end of the hydraulic control main valve (1), the anti-seepage device (7) is in an open state in a non-pressure state, when the hydraulic control main valve (1) is sealed and leaks, water is discharged through the anti-seepage device (7), when the outlet end generates pressure after the hydraulic control main valve (1) is opened, the anti-seepage device (7) is automatically closed.
6. A mis-spraying prevention diaphragm type deluge valve according to claim 5, wherein the deluge valve further comprises a water alarm bell (4) connected to the outlet end of the main water control valve (1).
7. A deluge-proof diaphragm-type deluge valve according to claim 1, wherein the deluge valve further comprises a pressure switch (5) installed at the outlet end of the hydraulically controlled main valve (1), said pressure switch (5) being connected to the central control for signaling to the central control that the hydraulically controlled main valve (1) has been opened.
8. A deluge-proof diaphragm-type deluge valve as claimed in claim 6, further comprising a pressure gauge (6) in communication with the inlet chamber (B) for indicating the servo pressure of the deluge valve.
9. A deluge-proof diaphragm-type deluge valve according to claim 8, wherein the deluge valve further comprises a three-way ball valve with a first port in communication with the alarm bell (4), a second port in communication with the inlet chamber (B) and a third port in communication with the anti-seepage means (7).
10. A mis-spray prevention diaphragm-type deluge valve as claimed in claim 1, wherein the control process of the deluge valve includes
a. Servo state
When the screw port electric ball valve (3) is in a closed state, the inlet cavity (B) and the control cavity (A) are communicated all the time through the screw port check valve (2), the pressure is equal, and the area of a diaphragm pressure plate (1-5) of the hydraulic control main valve (1) is larger than that of a valve clack (1-6), so that the hydraulic control main valve (1) is in a closed state and cannot be opened under the action of instant pressure fluctuation, and the purpose of preventing false spraying is achieved;
b. water spraying fire fighting state
When a fire alarm signal is received, the central control automatically opens the screw electric ball valve (3), the area of a water inlet pipe of the control cavity (A) is far smaller than the diameter area of the screw electric ball valve (3), namely the drainage area, the control cavity (A) automatically releases pressure, at the moment, the hydraulic control main valve (1) automatically opens to spray water, the anti-leakage device (7) automatically closes, the pressure switch (5) senses the pressure of the water outlet end of the hydraulic control main valve (1) and sends a signal to the central control, and the hydraulic control main valve (1) is indicated to be opened to extinguish the fire;
c. anti-reset function
When the deluge valve enters a water spray fire fighting state, the electric wire connected with the central control of the screw port electric ball valve (3) is only connected with zero two electric wires, so the central control cannot close the screw port electric ball valve (3) in an electric control mode, the screw port electric ball valve (3) has a position-keeping function, the original open state is kept in a power-off state, and only when the fire is extinguished, the screw port electric ball valve (3) is manually closed on site, so that the hydraulic control main valve (1) automatically enters a servo state to realize the anti-reset function;
d. control cavity pressure maintaining function
In order to prevent the phenomenon that the control cavity (A) is mistakenly sprayed for a short time due to the fact that water is arranged in the control cavity (A) when water is supplied again after maintenance and water cut-off, a screw port check valve (2) arranged at the water inlet end of the control cavity (A) guarantees that water in the control cavity (A) cannot be lost when water is cut off, and therefore the phenomenon that the control cavity (A) is mistakenly sprayed for a short time when water is supplied is eliminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405533.4A CN113983215A (en) | 2021-11-24 | 2021-11-24 | Prevent mistake and spout diaphragm type deluge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405533.4A CN113983215A (en) | 2021-11-24 | 2021-11-24 | Prevent mistake and spout diaphragm type deluge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113983215A true CN113983215A (en) | 2022-01-28 |
Family
ID=79750362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111405533.4A Pending CN113983215A (en) | 2021-11-24 | 2021-11-24 | Prevent mistake and spout diaphragm type deluge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113983215A (en) |
-
2021
- 2021-11-24 CN CN202111405533.4A patent/CN113983215A/en active Pending
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