CN214633589U - Water spraying alarm valve for fire-fighting spraying system - Google Patents
Water spraying alarm valve for fire-fighting spraying system Download PDFInfo
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- CN214633589U CN214633589U CN202120585851.2U CN202120585851U CN214633589U CN 214633589 U CN214633589 U CN 214633589U CN 202120585851 U CN202120585851 U CN 202120585851U CN 214633589 U CN214633589 U CN 214633589U
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Abstract
The utility model relates to a water spray alarm valve for a fire-fighting spray system, which comprises a pipe body, wherein two pipe orifices of the pipe body are respectively a water inlet and a water outlet, and the water spray alarm valve also comprises a check valve, a Hall flow meter, a microprocessor, an alarm bell and a test water outlet pipe; the one-way valve is arranged at the water inlet, and only allows water to enter from the water inlet but not allows water to exit from the water inlet; the Hall flowmeter is arranged in the middle of the pipe body, the microprocessor and the alarm bell are positioned outside the pipe body, the signal output end of the Hall flowmeter is connected with the flow signal input end of the microprocessor, and the alarm signal output end of the microprocessor is connected with the alarm bell through a triode; the test water outlet pipe is connected to the side face of the water outlet, the interior of the test water outlet pipe is communicated with the interior of the pipe body, and a switch valve is arranged on the test water outlet pipe; and a pump starting signal output end of the microprocessor is connected with a fire pump of the fire-fighting spraying system. The utility model has the advantages of simple structure, with low costs, good reliability, debugging convenience.
Description
The technical field is as follows:
the utility model relates to a water spray alarm valve, in particular to a water spray alarm valve for fire sprinkler system.
Background art:
in the fire-fighting spraying system, once the sprinkler head is opened by the temperature rise caused by the fire, after water is sprayed out, the pressure of the water outlet side is gradually reduced to a certain degree and then is detected by a water spraying alarm valve, so that an alarm bell is started to alarm.
The existing water spray alarm valve generally adopts a wet alarm valve, and the wet alarm valve is a one-way valve which only allows water to flow in one way and alarms under the specified flow rate. When the sprinkler head is not opened, the water pressure around the valve clack of the wet alarm valve is equal (water passes through the water pressure balance small hole in the guide pipe to keep the water pressure balance around the valve clack), and the valve clack is in a closed state due to the dead weight of the valve clack. When the conflagration breaing out, the watering shower nozzle sprays water, because the water pressure balance aperture comes not too late moisturizing, the water pressure descends above the alarm valve, and the water pressure is greater than behind the valve clack before the valve clack this moment, so the valve clack opens, supplies water to riser and pipe network, and water gets into facilities such as delay timer, pressure switch and water conservancy alarm bell along the ring channel of alarm valve simultaneously, sends the fire alarm signal and starts the fire pump. The wet alarm valve is a complex mechanical structure, and has high manufacturing cost, high failure rate and inconvenient debugging.
The utility model has the following contents:
the to-be-solved technical problem of the utility model is: the water spray alarm valve for the fire-fighting spraying system is simple in structure, low in cost, good in reliability and convenient to debug.
The technical scheme of the utility model:
a water spray alarm valve for a fire-fighting spray system comprises a pipe body, wherein two pipe orifices of the pipe body are a water inlet and a water outlet respectively; the one-way valve is arranged at the water inlet, and only allows water to enter from the water inlet but not allows water to exit from the water inlet; the Hall flowmeter is arranged in the middle of the pipe body, the microprocessor and the alarm bell are positioned outside the pipe body, the signal output end of the Hall flowmeter is connected with the flow signal input end of the microprocessor, and the alarm signal output end of the microprocessor is connected with the alarm bell through a triode; the test water outlet pipe is connected to the side face of the water outlet, the interior of the test water outlet pipe is communicated with the interior of the pipe body, and the test water outlet pipe is provided with a switch valve.
The Hall flowmeter contains impeller and Hall revolution speed sensor, impeller mounting is inside the body, Hall revolution speed sensor installs on the lateral surface of body, the diameter direction setting of body cross-section is followed in the pivot of impeller, the one end of the pivot of impeller and the first through-hole slip and sealing connection on the body lateral wall, the other end of the pivot of impeller passes the second through-hole on the body lateral wall and is connected with Hall revolution speed sensor on the body lateral surface, and the other end and the second through-hole slip and sealing connection of the pivot of impeller, Hall revolution speed sensor's signal output part is connected with microprocessor's flow signal input part.
One end of a rotating shaft of the impeller is connected with the first through hole in a sliding and sealing mode through the first shaft sleeve, and the other end of the rotating shaft of the impeller is connected with the second through hole in a sliding and sealing mode through the second shaft sleeve; the output end of the Hall rotating speed sensor is connected with the power supply end of the microprocessor through a pull-up resistor.
And a pump starting signal output end of the microprocessor is connected with a fire pump of the fire-fighting spraying system.
The water inlet and the water outlet of the pipe body are respectively provided with a flange, so that the water spraying alarm valve can be conveniently installed in a water supply pipeline of the water spraying nozzle.
The working process of the water spraying alarm valve is as follows:
under the normal condition, the watering shower nozzle is closed, and the water in the body does not flow, and the impeller also does not rotate, and hall speed sensor can not detect the signal, consequently, can not send flow signal for microprocessor.
When the conflagration breaing out, the watering shower nozzle is opened, and the rivers in the body flow, and the impeller is rotatory under the promotion of rivers, and this moment, hall speed sensor detects the rotational speed of impeller, then gives microprocessor, and microprocessor converts the flow of this rotational speed into water, and when the flow of water reached a definite value, microprocessor just exported alarm signal and made the alarm bell start-up, and simultaneously, microprocessor sent and opens the pump signal and makes the fire pump open, provides sufficient water for the watering shower nozzle.
The utility model has the advantages that:
1. the utility model adopts the Hall flow meter to detect the water flow in the pipe body, thereby judging whether the sprinkler head is opened, if the sprinkler head is opened, the microprocessor sends out an alarm signal to make the alarm bell alarm, and simultaneously sends out a pump opening signal to make the fire pump of the fire-fighting spray system open, so as to provide enough water for the sprinkler head; the utility model discloses an electronic type's detection and control mode, its simple structure, with low costs, good reliability.
2. The utility model discloses a side of delivery port is connected with an experimental outlet pipe, is equipped with switch valve on the experimental outlet pipe, and is right when needs the utility model discloses when debugging, only need open switch valve, the condition that the simulation watering shower nozzle was opened because of the conflagration can, has made things convenient for the utility model discloses debugging work before dispatching from the factory.
Description of the drawings:
FIG. 1 is a schematic structural view of a water spray warning valve for a fire sprinkler system;
fig. 2 is a schematic circuit connection diagram of a water spray warning valve for a fire sprinkler system.
The specific implementation mode is as follows:
referring to fig. 1-2, the water spray alarm valve for the fire sprinkler system comprises a pipe body 1, a one-way valve 4, a hall flowmeter, a microprocessor, an alarm bell JL and a test water outlet pipe 7; two pipe orifices of the pipe body 1 are respectively a water inlet 2 and a water outlet 3; the one-way valve 4 is arranged at the water inlet 2, and the one-way valve 4 only allows water to enter from the water inlet 2 but not allows water to exit from the water inlet 2; the Hall flowmeter is arranged in the middle of the pipe body 1, the microprocessor and the alarm bell JL are positioned outside the pipe body 1, the signal output end of the Hall flowmeter is connected with the flow signal input end L of the microprocessor, and the alarm signal output end BJ of the microprocessor is connected with the alarm bell JL through a triode T; the test water outlet pipe 7 is connected to the side face of the water outlet 3, the interior of the test water outlet pipe 7 is communicated with the interior of the pipe body 1, and the test water outlet pipe 7 is provided with a switch valve 8.
Hall flowmeter contains impeller 6 and hall tachometric sensor 5, impeller 6 installs inside body 1, hall tachometric sensor 5 installs on body 1's lateral surface, impeller 6's pivot 9 sets up along the diameter direction in 1 cross-section of body, the one end of impeller 6's pivot 9 slides and sealing connection with the first through-hole on the 1 lateral wall of body, the other end of impeller 6's pivot 9 passes the second through-hole on the 1 lateral wall of body and is connected with hall tachometric sensor 5 on the 1 lateral surface of body, and the other end of impeller 6's pivot 9 slides and sealing connection with the second through-hole, hall tachometric sensor 5's signal output part and microprocessor's flow signal input part L are connected.
One end of a rotating shaft 9 of the impeller 6 is connected with the first through hole in a sliding and sealing mode through a first shaft sleeve 10, and the other end of the rotating shaft 9 of the impeller 6 is connected with the second through hole in a sliding and sealing mode through a second shaft sleeve 11; the output end of the hall revolution speed sensor 5 is connected with a power supply end VCC1 of the microprocessor through a pull-up resistor R2.
And a pump starting signal output end QB of the microprocessor is connected with a fire pump of the fire-fighting spraying system.
The water inlet 2 and the water outlet 3 of the pipe body 1 are respectively provided with a flange 12 and a flange 13, so that the water spray alarm valve can be conveniently installed in a water supply pipeline of a water spray nozzle.
The working process of the water spraying alarm valve is as follows:
under normal conditions, the watering shower nozzle is closed, and the water in the body 1 does not flow, and impeller 6 also does not rotate, and hall speed sensor 5 can not detect the signal, consequently, can not send flow signal for microprocessor.
When the conflagration breaing out, the watering shower nozzle is opened, the rivers in the body 1 flow, impeller 6 is rotatory under the promotion of rivers, this moment, hall speed sensor 5 detects impeller 6's rotational speed, then give microprocessor, microprocessor converts the flow of water with this rotational speed, when the flow of water reaches a definite value, microprocessor just outputs alarm signal and makes alarm bell JL start, and simultaneously, microprocessor sends and opens the pump signal and makes the fire pump open, provides sufficient water for the watering shower nozzle.
Claims (5)
1. The utility model provides a water spray alarm valve for fire sprinkler system, contains the body, and two mouths of pipe of body are water inlet and delivery port, characterized by respectively: the device also comprises a one-way valve, a Hall flow meter, a microprocessor, an alarm bell and a test water outlet pipe; the one-way valve is arranged at the water inlet; the Hall flowmeter is arranged in the middle of the pipe body, the microprocessor and the alarm bell are positioned outside the pipe body, the signal output end of the Hall flowmeter is connected with the flow signal input end of the microprocessor, and the alarm signal output end of the microprocessor is connected with the alarm bell through a triode; the test water outlet pipe is connected to the side face of the water outlet, the interior of the test water outlet pipe is communicated with the interior of the pipe body, and the test water outlet pipe is provided with a switch valve.
2. The water spray alarm valve for a fire sprinkler system of claim 1, further comprising: the Hall flow meter contains impeller and Hall revolution speed sensor, impeller mounting is inside the body, Hall revolution speed sensor installs on the lateral surface of body, the diameter direction setting of body cross-section is followed in the pivot of impeller, the one end of the pivot of impeller and the first through-hole on the body lateral wall slip and sealing connection, the other end of the pivot of impeller passes the second through-hole on the body lateral wall and is connected with Hall revolution speed sensor on the body lateral surface, and the other end and the second through-hole slip and sealing connection of the pivot of impeller, Hall revolution speed sensor's signal output part is connected with microprocessor's flow signal input part.
3. The water spray alarm valve for a fire sprinkler system of claim 2, further comprising: one end of the rotating shaft of the impeller is connected with the first through hole in a sliding and sealing mode through the first shaft sleeve, and the other end of the rotating shaft of the impeller is connected with the second through hole in a sliding and sealing mode through the second shaft sleeve; the output end of the Hall rotating speed sensor is connected with the power supply end of the microprocessor through a pull-up resistor.
4. The water spray alarm valve for a fire sprinkler system of claim 1, further comprising: and the pump starting signal output end of the microprocessor is connected with a fire pump of the fire-fighting spraying system.
5. The water spray alarm valve for a fire sprinkler system of claim 1, further comprising: and flanges are arranged at the water inlet and the water outlet of the pipe body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120585851.2U CN214633589U (en) | 2021-03-23 | 2021-03-23 | Water spraying alarm valve for fire-fighting spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120585851.2U CN214633589U (en) | 2021-03-23 | 2021-03-23 | Water spraying alarm valve for fire-fighting spraying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214633589U true CN214633589U (en) | 2021-11-09 |
Family
ID=78454972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120585851.2U Active CN214633589U (en) | 2021-03-23 | 2021-03-23 | Water spraying alarm valve for fire-fighting spraying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214633589U (en) |
-
2021
- 2021-03-23 CN CN202120585851.2U patent/CN214633589U/en active Active
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