CN201519418U

CN201519418U - Time-delay adjustable wet-type alarming valve bank

Info

Publication number: CN201519418U
Application number: CN2009202367734U
Authority: CN
Inventors: 李应成; 赖海灵
Original assignee: Guangzhou Design Institute
Current assignee: Guangzhou Design Institute
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-07-07
Anticipated expiration: 2019-09-30

Abstract

The utility model relates to a time-delay adjustable wet-type alarming valve bank, which comprises an alarm valve (1), a time delay unit (2), a pressure switch (3), a hydraulic alarm bell (4) and an extinguishing pipe (5), and is characterized in that an alarm bell valve (6) is arranged on the extinguishing pipe (5) connected with the alarm valve (1) and the time delay unit (2), and a time-delay adjusting valve (7) is arranged at the water outlet of the time delay unit (2); a connecting structure of the extinguishing pipe (5) is additionally arranged between the water outlet side of the alarm valve (1) and the time delay unit (2), and the control input terminal of the connecting structure of the extinguishing pipe (5) is connected with the control output terminal of the an alarm bell finding valve (8); and the extinguishing pipe (5) equipped with a water finding valve (9) is additionally arranged on the water outlet side of the alarm valve (1) and communicated with an underground ring net and an extinguishing spray pipe screen. The utility model adds a local pipeline and a control valve to the present wet-type alarm valve, so as to achieve the purposes that time-delay alarm time is adjusted as required and the debugging time of the system is saved, and have higher utility value.

Description

Time-delay adjustable type wet alarm valve group

Technical field

The utility model relates to a kind of wet alarm valve group, particularly a kind of time-delay adjustable type wet alarm valve group.Belong to wet type sprinkle fire extinguisher material technical field.

Background technology

At present, for the generation of fire preventing, automatic wet pipe sprinkler system is applied in skyscraper, hotel, hospital, theater, factory, warehouse widely, is reached in the underground engineering.The automatic wet pipe sprinkler system of prior art mainly is made up of pump house, wet alarm valve group, underground looped network, disappear jet pipe net and extinguishing pipe, and wherein the wet alarm valve group mainly is made up of alarm valve, extinguishing pipe, delayer, pressure switch, warning water system; The water outlet side of alarm valve is connected with the jet pipe net that disappears, and the influent side of alarm valve is connected with underground looped network, and the perforate of alarm valve is connected the back by extinguishing pipe and connects pressure switch and warning water system with delayer.When breaking out of fire, the current of underground looped network arrive the spray pipe network by alarm valve, the part current flow into delayer by the perforate of alarm valve simultaneously, a water part that enters delayer is drained, a part is stored in the delayer, after delayer was full of water, current touched pressure switch and warning water system, send alarm signal.

Therefore, the wet alarm valve group is a most important component in the automatic wet pipe sprinkler system, directly have influence on the sensitivity and the accuracy of automatic wet pipe sprinkler system, but there is following shortcoming in actual applications in existing wet alarm valve group: 1, because there is defective in the structure of wet alarm valve group, therefore, under the vibration of pump house fire pump, easily produce false alarm.2, because the wet alarm valve group is provided with unreasonablely, easily causes current mistakes to flow to delayer and cause warning water system wrong report alarm bell; 3, owing to have the unreasonable structure of wet alarm valve group now, when regularly automatic wet pipe sprinkler system being carried out Function detection, the time is long, and efficient is low, is unfavorable for practical operation.

The utility model content

The purpose of this utility model is in order to overcome the shortcoming that there is false alarm in existing wet alarm valve group, a kind of time-delay adjustable type wet alarm valve to be provided.

The purpose of this utility model is achieved through the following technical solutions:

Time-delay adjustable type wet alarm valve group comprises alarm valve, delayer, pressure switch, warning water system and extinguishing pipe; It is characterized in that:

1) in alarm valve and being connected of delayer the alarm bell valve is set on the fire main, the time-delay control valve is set at the delivery port place of delayer;

Can regulate the time of delayed alarm respectively by the open degree of adjusting alarm bell valve and time-delay control valve.

2) set up No. one extinguishing pipe syndeton between the water outlet side of alarm valve and delayer, the control input end of this extinguishing pipe syndeton connects the control output end of examination alarm bell valve;

Control opening/closing of this road extinguishing pipe by examination alarm bell valve; Detecting warning water system whether can operate as normal the time, only can detect by opening examination alarm bell valve.

3) set up the extinguishing pipe that the valve that tries the water is housed at the water outlet side of alarm valve, this road extinguishing pipe descends looped network communicatively and disappears the jet pipe net.

Directly by opening, close the valve that tries the water, can test spray increase pump operate as normal.

The purpose of this utility model can also be achieved through the following technical solutions:

A kind of embodiment of the present utility model is: between the water outlet side of alarm valve and examination alarm bell valve irreversible valve, Pressure gauge and pressure switch are set.

A kind of embodiment of the present utility model is: the open degree of alarm bell valve and time-delay control valve is adjusted according to actual needs, to reach maximum fire alarm sensitivity.

The beneficial effect that the utlity model has is as follows:

1, the utility model increases local pipeline and control valve on existing wet alarm valve basis, by adjusting the open degree of alarm bell valve, time-delay control valve, can regulate the time of delayed alarm according to actual needs, improves the accuracy rate of fire alarm; Open examination alarm bell valve, can or else start under the situation of alarm valve the check warning water system operate as normal; By opening, close the valve that tries the water, can check the spray booster pump can operate as normal.

2, in automatic wet pipe sprinkler system, use the utility model, not only can improve the accuracy rate of fire alarm, can also conveniently debug, save the system debug time, have higher utility system.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Specific embodiment

Specific embodiment 1

Fig. 1 constitutes specific embodiment of the utility model 1.

With reference to Fig. 1, the time-delay adjustable type wet alarm valve group that present embodiment constitutes comprises alarm valve 1, delayer 2, pressure switch 3, warning water system 4 and extinguishing pipe 5; In alarm valve 1 and being connected of delayer 2 alarm bell valve 6 is set on the extinguishing pipe 5 tunnel, time-delay control valve 7 is set at the delivery port place of delayer 2; Set up No. one extinguishing pipe 5 syndetons between the water outlet side of alarm valve 1 and delayer 2, the control input end of these extinguishing pipe 5 syndetons connects the control output end of examination alarm bell valve 8; Set up the extinguishing pipe 5 that the valve 9 that tries the water is housed at the water outlet side of alarm valve 1, this road extinguishing pipe 5 descends looped network communicatively and disappears the jet pipe net.

Under the normal condition, the water source control valve 10 in the automatic wet pipe sprinkler system is often opened, and alarm valve 1 water outlet side equates that with influent side hydraulic pressure no current flow into delayer 2 from the perforate of alarm valve 1.When fire alarm takes place when, fire pump discharge pipe current by water source control valve 10, alarm valve 1 to the jet pipe net that disappears, the part current enter extinguishing pipe 5 by the perforate of alarm valve 1 simultaneously, flow into delayer 2 through alarm bell valve 6 control current, a current part that enters delayer 2 is discharged through 7 controls of time-delay control valve, and a part is stored in the delayer 2, after delayer 2 is full of water, current touch pressure switch 3 and warning water system 4, send alarm signal.

Control the water flow that enters delayer 2 through alarm valve 1 by the open degree of adjusting alarm bell valve 6, regulate the time of delayed alarm; Regulate the water flow of discharging by the open degree of regulating time-delay control valve 7, reach the time of regulating delayer storage full water from delayer, thus the time of control delayed alarm; Avoided being strayed into delayer, the alarm signal that makes the mistake owing to the small amount of water that reasons such as fire pump vibration cause.And when real breaking out of fire, because discharge is big, a large amount of current still can store up full delayer fast, touch pressure switch generation alarm signal thereupon.Therefore can improve the accuracy rate of fire alarm by the open degree of adjusting alarm bell valve 6 and time-delay control valve 7.

Set up extinguishing pipe 5 and be connected, and, also can increase Pressure gauge 11 and corresponding pressure switch and irreversible valve 12 at this extinguishing pipe place, road by the switching of examination alarm bell valve 8 these road extinguishing pipes 5 of control with between the water outlet side of alarm valve 1 and the delayer 2; Under the normal condition, examination alarm bell valve 8 cuts out.When needs detect warning water system 7 whether can operate as normal the time, only by opening examination alarm bell valve 8, allow alarm valve 1 water outlet side current be full of delayer, touch pressure switch, whether can operate as normal, avoided starting and detected the inconvenience that can warning water system operate as normal bring under the situation of alarm valve 1 if can detect warning water system 7.

Set up the extinguishing pipe 5 that the valve 9 that tries the water is housed at the water outlet side of alarm valve 1, this extinguishing pipe 5 is connected with underground looped network, and under the normal condition, the valve 9 that tries the water cuts out.When can needs detect the jet pipe net that disappears operate as normal the time, only need only open the valve 9 that tries the water, allow current by spraying booster pump, whether detect has the current spray to get final product.

Claims

1. time-delay adjustable type wet alarm valve group comprises alarm valve (1), delayer (2), pressure switch (3), warning water system (4) and extinguishing pipe (5); It is characterized in that:

1) in alarm valve (1) and being connected on extinguishing pipe (5) road of delayer (2) alarm bell valve (6) is set, time-delay control valve (7) is set at the delivery port place of delayer (2);

2) set up No. one extinguishing pipe (5) syndeton between the water outlet side of alarm valve (1) and delayer (2), the control input end of this extinguishing pipe (5) syndeton connects the control output end of examination alarm bell valve (8);

3) set up the extinguishing pipe (5) that the valve that tries the water (9) are housed at the water outlet side of alarm valve (1), this road extinguishing pipe (5) descends looped network communicatively and disappears the jet pipe net.

2. time-delay adjustable type wet alarm valve group according to claim 1 is characterized in that: increase Pressure gauge (11) and relevant pressure switch and irreversible valve (12) between the water outlet side of alarm valve (1) and examination alarm bell valve (8).