CN117889246B - Wet alarm valve for preventing false alarm - Google Patents
Wet alarm valve for preventing false alarm Download PDFInfo
- Publication number
- CN117889246B CN117889246B CN202410295790.4A CN202410295790A CN117889246B CN 117889246 B CN117889246 B CN 117889246B CN 202410295790 A CN202410295790 A CN 202410295790A CN 117889246 B CN117889246 B CN 117889246B
- Authority
- CN
- China
- Prior art keywords
- alarm
- valve
- sliding
- valve plate
- valve body
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 132
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 15
- 230000006837 decompression Effects 0.000 claims description 10
- 239000011148 porous material Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to a wet alarm valve for preventing false alarm, which belongs to the technical field of fire-fighting equipment and comprises an alarm valve body, an alarm system, a valve plate sliding system and a drunkenness traction system, wherein the alarm valve body is divided into a water supply side and a system side by the valve plate sliding system, an alarm sealing step is arranged in the alarm valve body, the valve plate sliding system slides along the alarm valve body, the valve plate sliding system is matched with the alarm sealing step, an alarm water inlet is arranged at the contact position of the alarm sealing step and the valve plate sliding system, the alarm system is arranged on the alarm valve body and in disjunction communication with the alarm water inlet, the drunkenness traction system is arranged on the alarm valve body and in communication with the system side, the tail end of the drunkenness traction system is provided with a system side drain valve, and the drunkenness traction system drags the valve plate sliding system to move up and down when the system side drain valve is opened, so as to prevent false alarm.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to a wet alarm valve for preventing false alarm.
Background
The wet alarm valve is a one-way valve which only allows water to flow into a water spraying system in one way and alarms under a specified flow, the water pressure of the front and the rear of a valve plate of the wet alarm valve is equal at ordinary times (the water passes through a water pressure balance small hole in a guide pipe and keeps the water pressure balance of the front and the rear of the valve plate), when a fire disaster occurs, a closed spray nozzle sprays water, the water pressure above the alarm valve drops due to the fact that the water pressure balance small hole is not enough for supplementing water, at the moment, the water pressure in front of the valve plate is larger than the water pressure behind the valve plate, then the valve plate is opened to supply water to a vertical pipe and a pipe network, and meanwhile, the water enters facilities such as a delay device, a pressure switch, a hydraulic alarm bell and the like along an annular groove of the alarm valve, and a fire alarm signal is sent and a fire pump is started.
When the valve plate of the existing wet alarm valve is closed, sealing is not tight due to dirt existing in the position of the valve plate, false alarm is caused, after a drain valve on the side of a system is opened in the prior art, the valve plate can be opened, and then the dirt in the sealing position of the valve plate is cleaned, but the alarm valve is opened due to opening change when the valve plate is opened, and one side, close to a rotating shaft, of the valve plate is inconvenient to open, the dirt on the side is not cleaned well, and false alarm is easily caused.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides a wet type alarm valve for preventing false alarm.
The technical scheme adopted by the invention is as follows:
The utility model provides a prevent wet-type alarm valve of false alarm, includes alarm valve body, alarm system, valve plate slide system and drunkenness traction system, the alarm valve body is separated into water supply side and system side by valve plate slide system, be equipped with alarm seal step in the alarm valve body, valve plate slide system slides along the alarm valve body, valve plate slide system and alarm seal step adaptation, be equipped with the alarm water inlet on the alarm seal step with valve plate slide system contact position, alarm system installs on the alarm valve body and alarm system and the communication that the alarm water inlet can break, drunkenness traction system installs on the alarm valve body and drunkenness traction system and system side intercommunication, drunkenness traction system's end is equipped with system side drain valve, drunkenness traction system pulls valve plate slide system up-and-down motion when system side drain valve is opened, drunkenness traction system includes drunkenness haulage rope, reciprocating slide device and sliding chamber device, reciprocating slide device have shutoff state and logical water state, the sliding chamber device is installed on the alarm valve body through the drunkenness inlet tube, reciprocating slide device slidable installs at sliding chamber device, the communication state is the valve body is moved by the state by the water-passing state by the valve body when the reciprocating slide device is kept away from the valve body to the shutoff state when the state is changed to the shutoff state.
Preferably, the alarm system comprises an alarm water inlet pipe, an alarm control valve, a water dripping pore plate, a buffer, a hydraulic alarm bell and an alarm switch, wherein the alarm water inlet pipe is arranged on the alarm valve body and communicated with the alarm water inlet, the alarm control valve is arranged on the alarm water inlet pipe, the buffer is arranged on the alarm water inlet pipe and communicated with the alarm water inlet pipe, the hydraulic alarm bell and the alarm switch are arranged on the upper side of the buffer and communicated with the output end of the buffer, and the water dripping pore plate is arranged between the alarm control valve and the buffer.
Preferably, an alarm detection pipe is arranged between the alarm water inlet pipe and the water supply side of the alarm valve body, an alarm detection valve is arranged on the alarm detection pipe, and the alarm water inlet pipe and the alarm detection pipe are communicated with one side, far away from the alarm valve body, of the alarm control valve.
Preferably, the valve plate sliding system comprises a valve plate mounting plate, a valve plate sliding rail, a valve plate sliding block and a sealing valve plate, wherein the valve plate mounting plate is arranged on the side edge of the alarm valve body, the valve plate sliding rail is arranged on the valve plate mounting plate, the valve plate sliding block is slidably arranged on the valve plate sliding rail, the sealing valve plate is rotatably arranged on the valve plate sliding block, and the sealing valve plate is matched with the alarm sealing step.
Preferably, the reciprocating sliding device comprises a reciprocating sliding piston, a blocking sliding block, a first control magnet and a second control magnet, the sliding cavity device comprises a sliding section and a decompression section, the reciprocating sliding piston slides along the sliding section, a water passing channel is arranged at the axis position of the reciprocating sliding piston, the blocking sliding block slides in the reciprocating sliding piston, the sliding direction of the blocking sliding block is vertical to the direction of the water passing channel, the sliding track of the blocking sliding block extends into the water passing channel so that the reciprocating sliding device is switched between a blocking state and a water passing state, the first control magnet and the second control magnet are oppositely arranged on the outer side of the alarm valve body, the blocking sliding block is attracted to block the water passing channel when the reciprocating sliding piston approaches the first control magnet and the second control magnet, the blocking sliding block falls down to open the water passing channel when the reciprocating sliding piston enters the decompression section, and a system side drain valve is arranged on the decompression section.
Preferably, the alarm valve further comprises a water supply side water pressure gauge, and the water supply side water pressure gauge is communicated with the water supply side.
Preferably, the alarm valve further includes a system side water pressure gauge, which communicates with the system side.
The beneficial effects of the invention are as follows:
The alarm valve body is divided into a water supply side and a system side by the valve plate sliding system, an alarm sealing step is arranged in the alarm valve body, the valve plate sliding system slides along the alarm valve body, the valve plate sliding system is matched with the alarm sealing step, an alarm water inlet is formed in the contact position of the alarm sealing step and the valve plate sliding system, the alarm valve body and the alarm water inlet are sealed when the valve plate sliding system presses the alarm sealing step, the alarm water inlet can not alarm, the alarm system is arranged on the alarm valve body and can be communicated with the alarm water inlet in a breaking way, the drunkenness traction system is arranged on the alarm valve body and is communicated with the system side, a system side drainage valve is arranged at the tail end of the drunkenness traction system, the drunkenness traction system drags the valve plate sliding system to move up and down when the system side drainage valve is opened after the alarm water inlet is cut off, so that water can repeatedly impact all areas at the bottom of the valve plate sliding system, and false alarms are prevented.
Drawings
Fig. 1 is a schematic structural view of the valve plate sliding system of the present invention in an upper limit position.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Fig. 3 is a schematic structural view of the valve plate sliding system of the present invention in the lower limit position.
Fig. 4 is an enlarged schematic view at B in fig. 3.
Reference numerals illustrate:
1. An alarm valve body; 11. a water supply side; 12. a system side; 13. an alarm sealing step; 14. a water inlet for alarming;
2. An alarm system; 21. an alarm water inlet pipe; 22. an alarm control valve; 23. a drip hole plate; 24. a buffer; 25. hydraulic alarm bell; 26. an alarm switch;
3. A valve plate sliding system; 31. a valve plate mounting plate; 32. a valve plate sliding rail; 33. a valve plate slide block; 34. a sealing valve plate;
4. A play traction system;
5. An alarm detection tube; 51. an alarm detection valve; 41. a pull rope is moved; 42. a reciprocating slide device; 421. a reciprocating sliding piston; 422. plugging the sliding block; 4221. a water passing channel; 423. a first control magnet; 424. a second control magnet; 43. a sliding chamber device; 431. a sliding section; 432. decompression section;
6. A water pressure gauge on the water supply side;
7. a system side water pressure gauge.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in fig. 1-4, this embodiment provides a wet alarm valve for preventing false alarm, including an alarm valve body 1, an alarm system 2, a valve plate sliding system 3 and a float traction system 4, the alarm valve body 1 is divided into a water supply side 11 and a system side 12 by the valve plate sliding system 3, an alarm sealing step 13 is provided in the alarm valve body 1, the valve plate sliding system 3 slides along the alarm valve body 1, the valve plate sliding system 3 is matched with the alarm sealing step 13, an alarm water inlet 14 is provided at the contact position of the alarm sealing step 13 with the valve plate sliding system 3, the valve plate sliding system 3 seals the alarm valve body 1 and the alarm water inlet 14 when pressing the alarm sealing step 13, so that the alarm water inlet 14 does not alarm, the alarm system 2 is mounted on the alarm valve body 1 and the alarm system 2 is in communication with the alarm water inlet 14, the float traction system 4 is mounted on the alarm valve body 1 and the float traction system 4 is in communication with the system side 12, a system side drain valve is provided at the tail end of the float traction system 4, after the alarm water inlet 14 is cut off, the system side drain valve 4 pulls the float traction system 3 to move up and down when the system side drain valve plate sliding system 3 is opened, thus the valve plate sliding system 3 can repeatedly impact the valve plate 3 at the bottom of the valve plate sliding system 3, and the bottom of the valve plate is prevented from having full debris due to the false alarm.
Specifically, the alarm system 2 comprises an alarm water inlet pipe 21, an alarm control valve 22, a water dripping pore plate 23, a buffer 24, a hydraulic alarm bell 25 and an alarm switch 26, wherein the alarm control valve 22 is normally open, the alarm water inlet pipe 21 is arranged on the alarm valve body 1 and communicated with the alarm water inlet 14, the alarm control valve 22 is arranged on the alarm water inlet pipe 21, the buffer 24 is arranged on the alarm water inlet pipe 21 and communicated with the alarm water inlet pipe 21, the hydraulic alarm bell 25 and the alarm switch 26 are arranged on the upper side of the buffer 24 and communicated with the output end of the buffer 24, the drip orifice 23 is installed between the alarm control valve 22 and the buffer 24, when no fire alarm exists, the valve plate sliding system 3 may be slightly opened due to slight oscillation of water pressure, so that water flows into the alarm water inlet 14, then water flows through the drip orifice 23 and drops, when a fire alarm occurs, a large amount of water flows into the alarm water inlet pipe 21 through the alarm water inlet 14, the buffer 24 is filled to push the hydraulic alarm bell 25, the alarm switch 26 is triggered to start the water pump, and the buffer 24 can buffer a part of water under the condition that the valve plate sliding system 3 is slightly opened when no fire alarm exists, so that system false alarm is prevented.
Specifically, an alarm detection tube 5 is arranged between the alarm water inlet tube 21 and the water supply side 11 of the alarm valve body 1, an alarm detection valve 51 is arranged on the alarm detection tube 5, the alarm water inlet tube 21 and the alarm detection tube 5 are communicated on one side, far away from the alarm valve body 1, of the alarm control valve 22, and when the alarm detection valve 51 is opened, the hydraulic alarm bell 25 and the alarm switch 26 can be pushed by the buffer 24 even if fire water flows, so that whether the hydraulic alarm bell 25 and the alarm switch 26 are normal or not is detected.
Specifically, the valve plate sliding system 3 comprises a valve plate mounting plate 31, a valve plate sliding rail 32, a valve plate sliding block 33 and a sealing valve plate 34, wherein the valve plate mounting plate 31 is arranged on the side edge of the alarm valve body 1, the valve plate sliding rail 32 is arranged on the valve plate mounting plate 31, the valve plate sliding block 33 is slidably arranged on the valve plate sliding rail 32, the sealing valve plate 34 is rotatably arranged on the valve plate sliding block 33, the sealing valve plate 34 is matched with the alarm sealing step 13, the drunkenness traction system 4 pulls the sealing valve plate 34 to lift, and dirt at the lower end of the sealing valve plate 34 is comprehensively washed.
Specifically, the play traction system 4 includes a play traction rope 41, a reciprocating sliding device 42 and a sliding cavity device 43, the reciprocating sliding device 42 has a blocking state and a water-through state, the sliding cavity device 43 is installed on the alarm valve body 1 through a play water inlet pipe, the reciprocating sliding device 42 is slidably installed on the sliding cavity device 43, the reciprocating sliding device 42 is converted from the blocking state to the water-through state when the sliding cavity device 43 is far away from the alarm valve body 1, the reciprocating sliding device 42 is converted from the water-through state to the blocking state when the sliding cavity device 43 is close to the alarm valve body 1, the reciprocating sliding device 42 can slide in the sliding cavity device 43 towards the direction close to the alarm valve body 1 when in the water-through state, and then the sealing valve plate 34 can fall back, and the reciprocating sliding device 42 can only pull the sealing valve plate 34 to rise under the pushing of water flow when in the blocking state, so that the water flow comprehensively impacts the sealing valve plate 34, the dirt is washed, and tightness is guaranteed, and false alarm is prevented.
Specifically, the reciprocating slide device 42 includes a reciprocating slide piston 421, a blocking slide block 422, a first control magnet 423 and a second control magnet 424, the sliding chamber device 43 includes a slide section 431 and a decompression section 432, the reciprocating slide piston 421 slides along the slide section 431, a water passage 4221 is disposed at an axial position of the reciprocating slide piston 421, the blocking slide block 422 slides in the reciprocating slide piston 421, a sliding direction of the blocking slide block 422 is perpendicular to a direction of the water passage 4221, a sliding track of the blocking slide block 422 extends into the water passage 4221 so that the reciprocating slide device 42 is switched between a blocking state and a water-passing state, the first control magnet 423 and the second control magnet 424 are installed on an outer side of the alarm valve body 1 in opposition, the blocking slide block 422 is attracted to block the water passage 4221 when the reciprocating slide piston 421 approaches the first control magnet 423 and the second control magnet 424 to form a blocking state, and the water passage 4221 is opened by the blocking slide block 422 being opened by the water passage 4221 due to a rapid drop of a pressure acting on the blocking slide block 422 under a gravity effect when the reciprocating slide piston enters the decompression section 432, and the decompression section 432 is installed on a side of the blocking slide block 422 to prevent the blocking slide block 422 from falling out of the sealing slide block system 422 (in order to prevent the limiting screw 422 from being mounted on the reciprocating slide block 422).
Specifically, the alarm valve further comprises a water supply side water pressure gauge 6, the water supply side water pressure gauge 6 is communicated with the water supply side 11, the alarm valve further comprises a system side water pressure gauge 7, the system side water pressure gauge 7 is communicated with the system side 12, the water supply side water pressure gauge 6 and the system side water pressure gauge 7 are used for monitoring water pressure, and then the water pressure of the water supply side and the water pressure of the system side are monitored and ensured to be normal.
While the basic principles and main features of the invention and advantages of the invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (5)
1. The wet alarm valve for preventing false alarm is characterized by comprising an alarm valve body, an alarm system, a valve plate sliding system and a drunkenness traction system, wherein the alarm valve body is divided into a water supply side and a system side by the valve plate sliding system, an alarm sealing step is arranged in the alarm valve body, the valve plate sliding system slides along the alarm valve body, the valve plate sliding system is matched with the alarm sealing step, an alarm water inlet is arranged at the contact position of the alarm sealing step and the valve plate sliding system, the alarm system is arranged on the alarm valve body and is in disjunction communication with the alarm water inlet, the drunkenness traction system is arranged on the alarm valve body and is communicated with the system side, a system side drain valve is arranged at the tail end of the drunkenness traction system, the drunkenness traction system drags the valve plate sliding system to move up and down when the system side drain valve is opened, the float traction system comprises a float traction rope, a reciprocating sliding device and a sliding cavity device, wherein the reciprocating sliding device is provided with a blocking state and a water passing state, the sliding cavity device is arranged on an alarm valve body through a float water inlet pipe, the reciprocating sliding device is slidably arranged on the sliding cavity device, the reciprocating sliding device is converted into the water passing state from the blocking state when being far away from the alarm valve body along the sliding cavity device, the reciprocating sliding device is converted into the blocking state from the water passing state when being close to the alarm valve body along the sliding cavity device, the valve plate sliding system comprises a valve plate mounting plate, a valve plate sliding rail and a sealing valve plate, the valve plate mounting plate is arranged on the side edge of the alarm valve body, the valve plate sliding rail is arranged on the valve plate mounting plate, the valve plate sliding rail is slidably arranged on the valve plate sliding rail, the sealing valve plate is rotatably arranged on the valve plate sliding rail, the sealing valve plate is matched with the alarm sealing step, the reciprocating sliding device comprises a reciprocating sliding piston, a plugging sliding block, a first control magnet and a second control magnet, the sliding cavity device comprises a sliding section and a decompression section, the reciprocating sliding piston slides along the sliding section, a water passing channel is arranged at the axis position of the reciprocating sliding piston, the plugging sliding block slides in the reciprocating sliding piston, the sliding direction of the plugging sliding block is perpendicular to the direction of the water passing channel, the sliding track of the plugging sliding block extends into the water passing channel so that the reciprocating sliding device is switched between a plugging state and a water passing state, the first control magnet and the second control magnet are oppositely arranged on the outer side of the alarm valve body, the plugging sliding block is attracted to plug the water passing channel when the reciprocating sliding piston is close to the first control magnet and the second control magnet, the plugging sliding block falls into to open the water passing channel when the reciprocating sliding piston enters the decompression section, and the system side drain valve is arranged at the decompression section.
2. The wet alarm valve for preventing false alarm according to claim 1, wherein the alarm system comprises an alarm water inlet pipe, an alarm control valve, a drip orifice plate, a buffer, a hydraulic alarm bell and an alarm switch, wherein the alarm water inlet pipe is installed on the alarm valve body and is communicated with the alarm water inlet, the alarm control valve is installed on the alarm water inlet pipe, the buffer is installed on the alarm water inlet pipe and is communicated with the alarm water inlet pipe, the hydraulic alarm bell and the alarm switch are installed on the upper side of the buffer and are communicated with the output end of the buffer, and the drip orifice plate is installed between the alarm control valve and the buffer.
3. The wet alarm valve for preventing false alarm according to claim 2, wherein an alarm detection tube is arranged between the alarm water inlet tube and the water supply side of the alarm valve body, the alarm detection tube is provided with an alarm detection valve, and the alarm water inlet tube is communicated with the alarm detection tube on the side of the alarm control valve away from the alarm valve body.
4. The false alarm preventing wet type alarm valve according to claim 1, further comprising a water supply side water pressure gauge communicating with the water supply side.
5. The wet warning valve for preventing false alarms of claim 1 further comprising a system side water pressure gauge in communication with the system side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410295790.4A CN117889246B (en) | 2024-03-15 | 2024-03-15 | Wet alarm valve for preventing false alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410295790.4A CN117889246B (en) | 2024-03-15 | 2024-03-15 | Wet alarm valve for preventing false alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117889246A CN117889246A (en) | 2024-04-16 |
| CN117889246B true CN117889246B (en) | 2024-05-28 |
Family
ID=90641495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410295790.4A Active CN117889246B (en) | 2024-03-15 | 2024-03-15 | Wet alarm valve for preventing false alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117889246B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11139492A (en) * | 1997-11-07 | 1999-05-25 | Hitachi Higashi Service Engineering:Kk | Liquid storage equipment, and its shut-off valve |
| CN104436504A (en) * | 2014-11-27 | 2015-03-25 | 黑龙江大学 | Alarm device for wet-type sprinkler system and alarming method |
| CN108119676A (en) * | 2016-11-28 | 2018-06-05 | 天津市易泰柯自动控制设备有限公司 | A kind of swing check valve suitable for all kinds of hydraulic pressure |
| CN207769015U (en) * | 2017-12-21 | 2018-08-28 | 祥安消防科技有限公司 | It is a kind of that there is the wet fire protection alarm valve for preventing wrong report function |
| CN208024890U (en) * | 2018-03-14 | 2018-10-30 | 泉州市声珈源消防设备有限公司 | A kind of wet alarm valve with shunting function |
| CN116357746A (en) * | 2023-03-28 | 2023-06-30 | 合肥万康渔业科技有限公司 | Blow-down valve for circulating water culture system and automatic blow-down device thereof |
| CN219673309U (en) * | 2023-03-07 | 2023-09-12 | 合肥万康渔业科技有限公司 | Automatic change sewage discharge equipment |
| CN116906668A (en) * | 2023-07-27 | 2023-10-20 | 航大阀门集团有限公司 | water pump control valve |
-
2024
- 2024-03-15 CN CN202410295790.4A patent/CN117889246B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11139492A (en) * | 1997-11-07 | 1999-05-25 | Hitachi Higashi Service Engineering:Kk | Liquid storage equipment, and its shut-off valve |
| CN104436504A (en) * | 2014-11-27 | 2015-03-25 | 黑龙江大学 | Alarm device for wet-type sprinkler system and alarming method |
| CN108119676A (en) * | 2016-11-28 | 2018-06-05 | 天津市易泰柯自动控制设备有限公司 | A kind of swing check valve suitable for all kinds of hydraulic pressure |
| CN207769015U (en) * | 2017-12-21 | 2018-08-28 | 祥安消防科技有限公司 | It is a kind of that there is the wet fire protection alarm valve for preventing wrong report function |
| CN208024890U (en) * | 2018-03-14 | 2018-10-30 | 泉州市声珈源消防设备有限公司 | A kind of wet alarm valve with shunting function |
| CN219673309U (en) * | 2023-03-07 | 2023-09-12 | 合肥万康渔业科技有限公司 | Automatic change sewage discharge equipment |
| CN116357746A (en) * | 2023-03-28 | 2023-06-30 | 合肥万康渔业科技有限公司 | Blow-down valve for circulating water culture system and automatic blow-down device thereof |
| CN116906668A (en) * | 2023-07-27 | 2023-10-20 | 航大阀门集团有限公司 | water pump control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117889246A (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214074842U (en) | Intelligent fire-fighting emergency control system | |
| CN117889246B (en) | Wet alarm valve for preventing false alarm | |
| CN203169885U (en) | Wet-type alarm valve | |
| CN213049105U (en) | Water tank water level control system for high-pressure water mist fire extinguishing system | |
| CN201643505U (en) | Deluge valve with diaphragm valve flap | |
| JP5443219B2 (en) | Tunnel water spray equipment | |
| CN201103408Y (en) | Fire-proof pressure-relief water and slag discharging device | |
| CN201739577U (en) | Fire-fighting check valve | |
| CN219888809U (en) | Wet fire alarm valve with error alarm prevention function | |
| CN219242714U (en) | Automatic reset wet alarm valve | |
| CN112854373A (en) | Automatic surplus water mechanism of arranging of outdoor fire hydrant | |
| CN220752100U (en) | Fire pump water flow detection control device | |
| CN220581820U (en) | Wet-type alarm valve | |
| CN201202854Y (en) | Water hammer-proof double-non-return protection valve | |
| CN220582237U (en) | Be used for automatic drainage structures of coal dry separation machine valve box | |
| US2270924A (en) | Filter | |
| JPH0614780Y2 (en) | Automatic alarm valve | |
| CN217430742U (en) | Fire hydrant water level pressure detection device | |
| JP2611138B2 (en) | Automatic drip valve for sprinkler fire extinguishing equipment | |
| CN220767881U (en) | Low-pressure waterway protector for sprinkler | |
| CN113802645B (en) | Outdoor fire hydrant | |
| CN218267257U (en) | Stop valve for secondarily separating inflow channel | |
| CN221255632U (en) | Anti-overflow water washing system | |
| CN219911963U (en) | Time-delay valve core and tap | |
| CN215543144U (en) | Municipal administration road curb washes prevents stifled equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |