CN110772742A - Spraying valve for fire control - Google Patents
Spraying valve for fire control Download PDFInfo
- Publication number
- CN110772742A CN110772742A CN201911032983.6A CN201911032983A CN110772742A CN 110772742 A CN110772742 A CN 110772742A CN 201911032983 A CN201911032983 A CN 201911032983A CN 110772742 A CN110772742 A CN 110772742A
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- CN
- China
- Prior art keywords
- valve
- spray head
- opening
- head body
- stirling engine
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- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- 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
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a fire-fighting spray valve, which comprises a spray head body, wherein a water inlet channel is arranged on the spray head body, a valve hole with an opening at the lower end is formed in the lower end of the spray head body upwards along the vertical direction, a valve port for communicating the valve hole with the water inlet channel is arranged in the spray head body, a valve plate for controlling the opening and closing of the valve port is connected in the valve hole in a sliding manner, a spray head cover is connected to the opening at the lower end of the valve hole in a threaded manner, a valve rod which extends downwards and penetrates through the spray head cover is arranged on the valve plate, and a spring for forcing the valve plate to; the upper end of the nozzle body is provided with a transmission component for controlling the valve plate to open or close the valve port; the spray head body is provided with a Stirling engine connected with the transmission assembly; this spraying valve for fire control, simple structure not only can open or close the water route according to ambient temperature's change automatically moreover.
Description
Technical Field
The invention belongs to the technical field of fire fighting equipment, and particularly relates to a spray valve for fire fighting.
Background
In the related art, an indoor fire fighting system deals with sudden fires by installing a smoke ion sensor and a glass bubble type water spray head in a room. Due to the limitation of installation mode and installation cost, most of the fire-fighting systems can only be applied to buildings such as higher hotels, restaurants, office buildings and the like. Moreover, the glass-bubble type water spray header is a disposable device, automatically breaks and sprays water after a fire occurs, but when the fire is extinguished, the water is still sprayed due to the fact that the fire-bubble type water spray header cannot be automatically closed, a large amount of valuable water resources are wasted, and meanwhile, the loss of water immersion is caused, for example, a library, a file data room, a laboratory equipped with instruments and meters and the like can cause secondary disasters due to the large amount of water immersion, and the loss which is difficult to recover is caused. In addition, although the prior art has realized passive automatic spraying through magnetic coupling and temperature memory alloy integrated configuration, because the trace that drives the magnetic ring is restricted by the overall dimension of valve gap and piston sleeve, the diameter size that memory alloy needs relatively great in original design has reduced the thrust in the deformation process, leads to the valve sometimes not to open. Therefore, there is an urgent need for an automatic spraying fire fighting device that automatically opens or closes a water path according to the change of the ambient temperature.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a fire-fighting spray valve which is simple in structure and can automatically open or close a water path according to the change of ambient temperature.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a fire-fighting spray valve comprises a spray head body, wherein a water inlet channel is arranged on the spray head body, a valve hole with an opening at the lower end is formed in the lower end of the spray head body upwards along the vertical direction, a valve port used for communicating the valve hole with the water inlet channel is arranged in the spray head body, a valve plate used for controlling the opening and closing of the valve port is connected in the valve hole in a sliding mode, a spray head cover is connected to the opening at the lower end of the valve hole in a threaded mode, a valve rod which extends downwards and penetrates through the spray head cover is arranged on the valve plate, and a spring used for forcing the valve; the upper end of the nozzle body is provided with a transmission component for controlling the valve plate to open or close the valve port; the spray head body is provided with a Stirling engine connected with the transmission assembly; when the ambient temperature is higher than the starting temperature of the Stirling engine, the Stirling engine starts to work and controls the valve ports to be opened and closed alternately through the transmission assembly, the frequency of the alternate opening and closing of the valve ports in unit time is increased along with the rise of the ambient temperature, and the frequency of the alternate opening and closing of the valve ports in unit time is reduced along with the reduction of the ambient temperature; when the ambient temperature is lower than the starting temperature of the Stirling engine, the Stirling engine stops working, and the valve port is closed.
In a further technical scheme, the Stirling engine comprises a cylinder frame arranged on the spray head body, wherein a support is arranged on the cylinder frame, and a crankshaft is rotatably connected to the support; the cylinder body frame is fixedly provided with a heat replacement cylinder and a power cylinder, the heat replacement cylinder is connected with an air moving piston in a sliding way, the air moving piston is provided with a piston rod penetrating through the cylinder body frame, and the piston rod is connected with the crankshaft through a first connecting rod; a power piston is connected in the power cylinder in a sliding manner, and a second connecting rod connected with the crankshaft is hinged to the power piston; the crankshaft is fixedly provided with a rotating wheel at one end facing the transmission assembly, and the rotating wheel is uniformly provided with a plurality of inclined plane grooves at intervals on the end surface facing the transmission assembly by taking the axis of the crankshaft as the center.
In a further technical scheme, the transmission assembly comprises a transmission block fixedly arranged on the spray head body, the upper end of the transmission block is provided with a square hole with an opening on the side surface, and the opening of the square hole is opposite to the rotating wheel; an ejector rod is connected in the transmission block in a sliding manner along the vertical direction, the upper end of the ejector rod is positioned in the square hole, and the lower end of the ejector rod penetrates through the spray head body and is abutted against the valve plate; a push block is connected in the square hole in a sliding manner, and a first inclined plane which is connected with the upper end of the ejector rod in a sliding manner is arranged on the push block; the push block is provided with a middle block which is opposite to the end surface of the rotating wheel, and the end surface of the middle block which is opposite to the rotating wheel is uniformly provided with a plurality of bulges which are matched with the inclined plane groove at intervals by taking the axis of the crankshaft as the middle; the upper end of the ejector rod is tightly pressed on the first inclined plane, so that the push block is forced to move towards the direction of the rotating wheel, and the protrusion on the middle block is tightly pressed in the inclined plane groove.
In a further technical scheme, each inclined plane groove is composed of a first power inclined plane and a second power inclined plane, and each protrusion is provided with a third power inclined plane matched with the first power inclined plane and a fourth power inclined plane matched with the second power inclined plane.
In a further technical scheme, a second inclined plane matched with the first inclined plane is arranged at the upper end of the ejector rod.
In a further technical scheme, a plurality of spray holes are uniformly arranged on the spray head cover at intervals by taking the valve rod as a center, and a spray head is arranged below the spray holes at the lower end of the valve rod.
(III) advantageous effects
Compared with the prior art, the technical scheme of the invention has the following advantages:
(1) the Stirling engine provides power, starts to work when the temperature reaches the starting temperature, and stops working when the temperature is lower than the starting temperature, so that the spray valve is controlled to be opened and closed according to the temperature;
(2) the stirling engine is more reliable and less expensive than memory metal;
(3) the Stirling engine can realize the characteristics that the temperature is higher, the work is faster, the temperature is low, the work is slow, and the number of times of opening the valve port in unit time is controlled, so that the amount of spray water can be controlled according to the fire intensity, and a water source is saved.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a first cross-sectional perspective view of the present invention;
FIG. 4 is a second cross-sectional perspective view of the present invention;
FIG. 5 is a block diagram of the wheel of the present invention;
FIG. 6 is a block diagram of the push block of the present invention;
fig. 7 is a structural view of the carrier rod of the present invention.
Detailed Description
Referring to fig. 1-7, a fire-fighting spray valve includes a nozzle body 4, a water inlet channel 401 is disposed on the nozzle body 4, a valve hole 402 with an open lower end is disposed at the lower end of the nozzle body 4 in the vertical direction, a valve port 403 for communicating the valve hole 402 with the water inlet channel 401 is disposed in the nozzle body 4, a valve plate 6 for controlling the valve port 403 to open and close is slidably connected in the valve hole 402, a nozzle cover 10 is screwed at the lower end opening of the valve hole 402, a valve rod 61 extending downward and penetrating through the nozzle cover 10 is disposed on the valve plate 6, and a spring 7 for forcing the valve plate 6 to press the valve port 403 is disposed between the nozzle cover 10 and the valve plate 6 in the valve hole 402. The head cap 10 is provided with a plurality of nozzle holes 101 at regular intervals around a valve stem 61, and a shower head 62 is provided below the nozzle holes 101 at the lower end of the valve stem 61. The upper end of the nozzle body 4 is provided with a transmission component for controlling the valve plate 6 to open or close the valve port 403; the spray head body 4 is provided with a Stirling engine connected with the transmission assembly; when the ambient temperature is higher than the starting temperature of the Stirling engine, the Stirling engine starts to work, the valve ports 403 are controlled by the transmission assembly to be opened and closed alternately, the number of times of opening and closing the valve ports 403 alternately in a unit time is increased along with the increase of the ambient temperature, and the number of times of opening and closing the valve ports 403 alternately in the unit time is reduced along with the decrease of the ambient temperature; when the ambient temperature is lower than the starting temperature of the Stirling engine, the Stirling engine stops working, and the valve port 403 is closed.
The Stirling engine comprises a cylinder body frame 1 arranged on a spray head body 4, a support 11 is arranged on the cylinder body frame 1, and a crankshaft 9 is rotatably connected to the support 11; a heat-exchanging cylinder 12 and a power cylinder 13 are fixedly mounted on the cylinder frame 1, an air moving piston 14 is connected in the heat-exchanging cylinder 12 in a sliding manner, a piston rod 15 penetrating through the cylinder frame 1 is arranged on the air moving piston 14, and the piston rod 15 is connected with the crankshaft 9 through a first connecting rod 16; a power piston 18 is connected in the power cylinder 13 in a sliding manner, and a second connecting rod 17 connected with the crankshaft 9 is hinged on the power piston 18; the crankshaft 9 is fixedly provided with a rotating wheel 2 at one end facing the transmission assembly, and the rotating wheel 2 is provided with a plurality of inclined plane grooves 201 uniformly at intervals on the end surface facing the transmission assembly by taking the axis of the crankshaft 9 as the center.
The transmission assembly comprises a transmission block 8 fixedly arranged on the spray head body 4, the upper end of the transmission block 8 is provided with a square hole 8a with an opening on the side surface, and the opening of the square hole 8a is opposite to the rotating wheel 2; a push rod 5 is connected in the transmission block 8 in a sliding manner along the vertical direction, the upper end of the push rod 5 is positioned in the square hole 8a, and the lower end of the push rod 5 penetrates through the spray head body 4 and is pressed against the valve plate 6; the square hole 8a is internally and slidably connected with a push block 3, the push block 3 is provided with a first inclined surface 3c which is slidably connected with the upper end of the ejector rod 5, and the upper end of the ejector rod 5 is provided with a second inclined surface 5a which is matched with the first inclined surface 3 c; the push block 3 is provided with a middle block 31 which is opposite to the end surface of the rotating wheel 2, and the middle block 31 is uniformly provided with a plurality of bulges 301 which are matched with the inclined plane groove 201 at intervals by taking the axis of the crankshaft 9 as the middle on the end surface which is opposite to the rotating wheel 2; the upper end of the top rod 5 is pressed on the first inclined surface 3c, and the push block 3 is forced to move towards the rotating wheel 2, so that the protrusion 301 on the middle block 31 is pressed in the inclined surface groove 201. Each inclined plane groove 201 is composed of a first power inclined plane 2a and a second power inclined plane 2b, and each protrusion 301 is provided with a third power inclined plane 3a matched with the first power inclined plane 2a and a fourth power inclined plane 3b matched with the second power inclined plane 2 b.
In use, the fire sprinkler valve connects both ends of the water intake passage 401 to fire hose lines and is vertically installed on a ceiling to expose the heat exchanging cylinder 12 of the stirling engine to the air.
When a fire disaster occurs indoors, the indoor temperature rises sharply, when the working starting temperature of the Stirling engine is reached, the Stirling engine starts to work, the crankshaft 9 is driven to rotate, the crankshaft 9 drives the rotating wheel 2 to rotate, the push block 3 is in sliding fit in the square hole 8a of the transmission block 8, the first power inclined plane 2a is matched with the third power inclined plane 3a, the rotating wheel 2 can push the push block 3 to move towards the square hole 8a when rotating, the push rod 5 can move downwards to push the valve plate 6 to open the valve port 403 due to the matching relation of the first inclined plane 3c and the second inclined plane 5a, the spray valve works, when sprayed water extinguishes the indoor fire, the indoor temperature is reduced, and when the indoor temperature is reduced to be lower than the starting temperature of the Stirling engine, the Stirling engine stops working, and the spray valve closes to stop spraying water.
In addition, as the indoor temperature rises sharply, due to the characteristic that the Stirling engine has the higher temperature, the higher the rotation speed of the crankshaft 9 of the Stirling engine is, so that the higher the fire is, the higher the rotation speed of the Stirling engine is, the more times the runner 2 rotates to push the push block 3 to move towards the square hole 8a in unit time is, the more times the valve port 403 is opened is, and the more water is sprayed by the shower valve. By the same principle, when the fire is not strong, less water can be sprayed to extinguish the fire, thereby achieving the purpose of saving water resources.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A fire-fighting spray valve is characterized by comprising a spray head body, wherein a water inlet channel is arranged on the spray head body, a valve hole with an opening at the lower end is formed in the lower end of the spray head body upwards along the vertical direction, a valve port used for communicating the valve hole with the water inlet channel is arranged in the spray head body, a valve plate used for controlling the opening and closing of the valve port is connected in the valve hole in a sliding mode, a spray head cover is connected to the opening at the lower end of the valve hole in a threaded mode, a valve rod extending downwards and penetrating through the spray head cover is arranged on the valve plate, and a spring used for forcing the valve plate to; the upper end of the nozzle body is provided with a transmission component for controlling the valve plate to open or close the valve port; the spray head body is provided with a Stirling engine connected with the transmission assembly; when the ambient temperature is higher than the starting temperature of the Stirling engine, the Stirling engine starts to work and controls the valve ports to be opened and closed alternately through the transmission assembly, the frequency of the alternate opening and closing of the valve ports in unit time is increased along with the rise of the ambient temperature, and the frequency of the alternate opening and closing of the valve ports in unit time is reduced along with the reduction of the ambient temperature; when the ambient temperature is lower than the starting temperature of the Stirling engine, the Stirling engine stops working, and the valve port is closed.
2. A fire protection sprinkler valve as defined in claim 1, wherein the stirling engine includes a cylinder frame mounted to the sprinkler body, the cylinder frame having a bracket to which a crankshaft is rotatably connected; the cylinder body frame is fixedly provided with a heat replacement cylinder and a power cylinder, the heat replacement cylinder is connected with an air moving piston in a sliding way, the air moving piston is provided with a piston rod penetrating through the cylinder body frame, and the piston rod is connected with the crankshaft through a first connecting rod; a power piston is connected in the power cylinder in a sliding manner, and a second connecting rod connected with the crankshaft is hinged to the power piston; the crankshaft is fixedly provided with a rotating wheel at one end facing the transmission assembly, and the rotating wheel is uniformly provided with a plurality of inclined plane grooves at intervals on the end surface facing the transmission assembly by taking the axis of the crankshaft as the center.
3. A fire-fighting spray valve according to claim 2, wherein the transmission assembly comprises a transmission block fixedly mounted on the nozzle body, the upper end of the transmission block is provided with a square hole with an opening on the side surface, and the opening of the square hole is opposite to the rotating wheel; an ejector rod is connected in the transmission block in a sliding manner along the vertical direction, the upper end of the ejector rod is positioned in the square hole, and the lower end of the ejector rod penetrates through the spray head body and is abutted against the valve plate; a push block is connected in the square hole in a sliding manner, and a first inclined plane which is connected with the upper end of the ejector rod in a sliding manner is arranged on the push block; the push block is provided with a middle block which is opposite to the end surface of the rotating wheel, and the end surface of the middle block which is opposite to the rotating wheel is uniformly provided with a plurality of bulges which are matched with the inclined plane groove at intervals by taking the axis of the crankshaft as the middle; the upper end of the ejector rod is tightly pressed on the first inclined plane, so that the push block is forced to move towards the direction of the rotating wheel, and the protrusion on the middle block is tightly pressed in the inclined plane groove.
4. A fire protection sprinkler valve as defined in claim 3, wherein each ramp channel is comprised of a first powered ramp and a second powered ramp, and each projection is provided with a third powered ramp cooperating with the first powered ramp and a fourth powered ramp cooperating with the second powered ramp.
5. A fire protection sprinkler valve as defined in claim 3, wherein the upper end of the post rod is provided with a second inclined surface cooperating with the first inclined surface.
6. A fire protection sprinkler valve as claimed in claim 1, wherein the head cover is provided with a plurality of spray holes at regular intervals centering on a valve stem, and a lower end of the valve stem is provided with a shower head below the spray holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911032983.6A CN110772742A (en) | 2019-10-28 | 2019-10-28 | Spraying valve for fire control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911032983.6A CN110772742A (en) | 2019-10-28 | 2019-10-28 | Spraying valve for fire control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110772742A true CN110772742A (en) | 2020-02-11 |
Family
ID=69387293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911032983.6A Withdrawn CN110772742A (en) | 2019-10-28 | 2019-10-28 | Spraying valve for fire control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110772742A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01138352A (en) * | 1987-11-25 | 1989-05-31 | Aisin Seiki Co Ltd | Stirling engine equipped with harmful component removing device |
| BR0116140A (en) * | 2000-12-13 | 2003-09-23 | Sharp Kk | Stirling engine and stirling cooler |
| BRPI0902824A2 (en) * | 2009-08-21 | 2011-11-16 | Pereira Almir Goncalves | multifunction alternating driven motor |
| CN104033974A (en) * | 2014-06-29 | 2014-09-10 | 曾永鸿 | Construction ventilation refrigeration system |
| CA2922679A1 (en) * | 2013-08-30 | 2015-03-05 | Heliix, Inc. | Thermal compressor |
-
2019
- 2019-10-28 CN CN201911032983.6A patent/CN110772742A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01138352A (en) * | 1987-11-25 | 1989-05-31 | Aisin Seiki Co Ltd | Stirling engine equipped with harmful component removing device |
| BR0116140A (en) * | 2000-12-13 | 2003-09-23 | Sharp Kk | Stirling engine and stirling cooler |
| BRPI0902824A2 (en) * | 2009-08-21 | 2011-11-16 | Pereira Almir Goncalves | multifunction alternating driven motor |
| CA2922679A1 (en) * | 2013-08-30 | 2015-03-05 | Heliix, Inc. | Thermal compressor |
| CN104033974A (en) * | 2014-06-29 | 2014-09-10 | 曾永鸿 | Construction ventilation refrigeration system |
Non-Patent Citations (3)
| Title |
|---|
| （美）穆肯德•R•帕特尔著；韩波，陈琦，崔晓婷译: "《航天器电源系统》", 31 December 2013, 中国宇航出版社 * |
| 本书编写组: "《企业内机动车辆驾驶人员安全技术》", 30 November 2009 * |
| 王承阳，王炳忠: "《工程热力学》", 30 September 2016, 冶金工业出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200211 |
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| WW01 | Invention patent application withdrawn after publication |