CN206979897U - A kind of fire hydrant subtracts stable-pressure device - Google Patents
A kind of fire hydrant subtracts stable-pressure device Download PDFInfo
- Publication number
- CN206979897U CN206979897U CN201720870353.6U CN201720870353U CN206979897U CN 206979897 U CN206979897 U CN 206979897U CN 201720870353 U CN201720870353 U CN 201720870353U CN 206979897 U CN206979897 U CN 206979897U
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- China
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- end cap
- fixed cover
- cap interface
- fire hydrant
- tightened
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- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
A kind of fire hydrant subtracts stable-pressure device, including inlet end cap interface, fixed cover, decompression valve, cylindrical compression spring, pressure reducing orifice, outlet end cap interface；Wherein described inlet end cap interface is tightened on fixed cover with thread connection, described decompression valve is arranged in the end stand in fixed cover, withstood with described cylindrical compression spring, described cylindrical compression spring is arranged in the slotted eye between decompression valve and pressure reducing orifice, described pressure reducing orifice is tightened in the end face set of fixed cover with thread connection, the end face set that described outlet end cap interface is tightened in fixed cover with thread connection is outer, inlet end cap interface is usually just connected with fire hydrant water outlet port, during fire extinguishing, outlet end cap interface is connected with fire hose coupling；It is advantageous in that：Structure and manufacture craft are simple, economical and practical, and the outlet pressure of fire hydrant can be stablized in the range of code requirement, and comparatively simple using operating, easy to maintenance, production cost is relatively low.
Description
(1) technical field
The utility model is related to all kinds of Indoor environment fire hydrants, outdoor fire hydrant Facilities serialized device --- one kind disappears
Fiery bolt subtracts stable-pressure device.The device (is more than in current fire supply system, improving because system working pressure is high
0.5MPa), cause fire extinguishing personnel to hold fire-fighting lance shakiness, influence the phenomenon of extinguishing effect, there is positive meaning.
(2) background technology
At present, matching used indoor fire hydrant, outdoor fire hydrant in all kinds of buildings, in Practical Project in use, due to
The condition of the position of fire hydrant, distance and the usage quantity that discharges water simultaneously is different, the outlet pressure of fire hydrant also phase not to the utmost
Together, GB50974-2014《Fire water-supply and hydrant system technical specification》7.4.12.1 the it is required that dynamic pressure of fire hydrant bolt mouth
It not should be greater than 0.50MPa.Because the outflow of fire hydrant of the bolt mouth pressure more than 0.5MPa can produce huge in fire water muzzle
Reaction force, beyond fire extinguishing personnel holding fire-fighting lance control ability, have a strong impact on fire fighting and rescue personnel to fire
Extinguishing effect.
A kind of the utility model-fire hydrant subtracts stable-pressure device, it becomes possible to solves the problems, such as the above well, by existing
Increase a set of pressure-reduced and-regulated device in some fire hydrant outlets, reach and fire hydrant outlet is efficiently controlled in the use of fire hydrant
Fire fighting hydraulic pressure, even if the operating pressure of system produces change within the specific limits, fire hydrant outlet can also automatically adjust, protect
Demonstrate,prove hydrant mouth pressure and remain stable, reach《Fire water-supply and hydrant system technical specification》Requirement, it is common retaining
On the premise of indoor fire hydrant, the external form of outdoor fire hydrant, interface standard and traditional installation, mode of operation, increase subtracts automatically
Press voltage stabilizing function.
(3) utility model content：
The purpose of this utility model is that designing a kind of fire hydrant subtracts stable-pressure device, by disappearing fire retaining general room
On the premise of bolt, the external form of outdoor fire hydrant, interface standard and traditional installation, mode of operation, increase a set of pressure-reduced and-regulated dress
Put, reach and fire hydrant outlet fire fighting hydraulic pressure is efficiently controlled in the use of fire hydrant, even if the operating pressure of system is certain
In the range of produce change, fire hydrant outlet can also automatically adjust, and ensure that hydrant mouth pressure remains stable, reach《Disappear
Anti- feedwater and hydrant system technical specification》Requirement.
The technical solution of the utility model：A kind of fire hydrant subtracts stable-pressure device (see Fig. 1), it is characterised in that it includes import
End cap interface, fixed cover, decompression valve, cylindrical compression spring, pressure reducing orifice, outlet end cap interface；Wherein described inlet end cap
Interface is tightened in thread connection on described fixed cover, and described decompression valve is arranged in the end stand in described fixed cover,
Withstood with described cylindrical compression spring, described cylindrical compression spring is arranged on described decompression valve and described pressure reducing orifice
Between slotted eye in, described pressure reducing orifice is tightened in thread connection in the end face set of described fixed cover, described outlet
The end face set that end cap interface is tightened in described fixed cover with thread connection is outer.
Inlet end cap interface described above, fixed cover, decompression valve, cylindrical compression spring, pressure reducing orifice, outlet end cap connect
Mouth constitutes a kind of fire hydrant and subtracts stable-pressure device, inlet end cap interface usually just with indoor fire hydrant, outdoor fire hydrant water side
Mouthful connection, during fire extinguishing, outlet end cap interface is connected with fire hose coupling.
It is to pass through between inlet end cap interface described above, fixed cover, decompression valve, pressure reducing orifice, outlet end cap interface
It is threadedly coupled together.
The course of work of the present utility model is：(1) inlet end cap interface is tightened on fixed cover；(2) installation decompression valve
End stand in fixed cover；(3) cylindrical compression spring is arranged on the guide pin bushing of decompression valve；(4) pressure reducing orifice is tightened in solid
Surely in the end face set covered；(5) the end face set that outlet end cap interface is tightened in fixed cover is outer；(6) by the entrance point of single unit system
It is connected, is put into normal use with indoor and outdoor fire hydrant water outlet port.
It is of the present utility model to be advantageous in that：1. structure and manufacture craft are simple, economical and practical；2. the outlet pressure of fire hydrant
Power is substantially stable in the range of code requirement；3. it is comparatively simple using operating, it is easy to maintenance；4. production cost is relatively low.
(4) illustrate
Fig. 1 is the structural representation that a kind of fire hydrant involved by the utility model subtracts stable-pressure device.
Fig. 2 is the operation principle FB(flow block) that a kind of fire hydrant involved by the utility model subtracts stable-pressure device.
Wherein, 1 be inlet end cap interface, 2 be fixed cover, 3 be decompression valve, 4 be cylindrical compression spring, 5 be pressure reducing orifice,
6 be outlet end cap interface.
(5) embodiment
Embodiment：A kind of fire hydrant subtracts stable-pressure device (see Fig. 1), it is characterised in that it includes inlet end cap interface 1, fixed
Set 2, decompression valve 3, cylindrical compression spring 4, pressure reducing orifice 5, outlet end cap interface 6；Wherein described inlet end cap interface 1 uses spiral shell
Line connection is tightened on described fixed cover 2, and described decompression valve 3 is arranged in the end stand in described fixed cover 2, with described
Cylindrical compression spring 4 withstand, described cylindrical compression spring 4 be arranged on described decompression valve 3 and described pressure reducing orifice 5 it
Between slotted eye in, described pressure reducing orifice 5 is tightened in thread connection in the end face set of described fixed cover 2, described outlet
The end face set that end cap interface 6 is tightened in described fixed cover 2 with thread connection is outer.
Inlet end cap interface 1 described above, fixed cover 2, decompression valve 3, cylindrical compression spring 4, pressure reducing orifice 5, outlet
End cap interface 6 constitutes a kind of fire hydrant and subtracts stable-pressure device, and just disappear fire when inlet end cap interface 1 is flat with indoor fire hydrant, outdoor
Bolt water outlet port is connected, and during fire extinguishing, outlet end cap interface 6 is connected with fire hose coupling.
It is between inlet end cap interface 1 described above, fixed cover 2, decompression valve 3, pressure reducing orifice 5, outlet end cap interface 6
Pass through what is be threadedly coupled together.
The course of work of the present utility model is：(1) inlet end cap interface 1 is tightened on fixed cover 2；(2) installation decompression
Valve 3 arrives the end stand in fixed cover 2；(3) cylindrical compression spring 4 is arranged on the guide pin bushing of decompression valve 3；(4) pressure reducing orifice 5 is twisted
Tightly in the set of the end face of fixed cover 2；(5) the end face set that outlet end cap interface 6 is tightened in fixed cover 2 is outer；(6) by single unit system
Entrance point be connected with indoor and outdoor fire hydrant water outlet port, put into normal use (see Fig. 2).
Claims (1)
1. a kind of fire hydrant subtracts stable-pressure device, it is characterised in that it includes inlet end cap interface, fixed cover, decompression valve, cylinder pressure
Contracting spring, pressure reducing orifice, outlet end cap interface；Wherein described inlet end cap interface is tightened in described fixation with thread connection
Put, described decompression valve is arranged in the end stand in described fixed cover, is withstood with described cylindrical compression spring, described
Cylindrical compression spring is arranged in the slotted eye between described decompression valve and described pressure reducing orifice, described pressure reducing orifice spiral shell
Line connection is tightened in the end face set of described fixed cover, and described outlet end cap interface is tightened in described consolidate with thread connection
Surely the end face set covered is outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720870353.6U CN206979897U (en) | 2017-07-17 | 2017-07-17 | A kind of fire hydrant subtracts stable-pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720870353.6U CN206979897U (en) | 2017-07-17 | 2017-07-17 | A kind of fire hydrant subtracts stable-pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206979897U true CN206979897U (en) | 2018-02-09 |
Family
ID=61404890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720870353.6U Expired - Fee Related CN206979897U (en) | 2017-07-17 | 2017-07-17 | A kind of fire hydrant subtracts stable-pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206979897U (en) |
-
2017
- 2017-07-17 CN CN201720870353.6U patent/CN206979897U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20200717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |