CN201139896Y - Temperature sensing element of automatic spraying firefighting apparatus - Google Patents
Temperature sensing element of automatic spraying firefighting apparatus Download PDFInfo
- Publication number
- CN201139896Y CN201139896Y CNU2007201318337U CN200720131833U CN201139896Y CN 201139896 Y CN201139896 Y CN 201139896Y CN U2007201318337 U CNU2007201318337 U CN U2007201318337U CN 200720131833 U CN200720131833 U CN 200720131833U CN 201139896 Y CN201139896 Y CN 201139896Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- sensing element
- shells
- temperature sensing
- automatic sprinkler
- 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.)
- Expired - Lifetime
Links
Abstract
The utility model relates to a temperature sensing element of an automatic sprinkler system, and relates to the technical field of fire control equipment, and especially belongs to the technical field of an automatic sprinkler system. The temperature element comprises two shells, and each shell presents a cylinder shape with one end being closed, one end of the cylinder shape is in a hemisphere shape, and the other end presents a clinoplain; the two shells are matched and connected through the clinoplain, and a hollow cavity enclosed by the two shells is filled with colliquable alloy. The temperature sensing element uses the colliquable alloy as the temperature sensing material of the automatic sprinkler system; when the environmental temperature reaches the action temperature, the colliquable alloy melts; since water pressure acts on the colliquable alloy type temperature sensing element on a water injection valve, the two dipped finish shells slide along the clinoplain to separate and fall off, the water injection valve is opened, and the function of water spray and fire-extinguishing is realized. The temperature sensing element of the utility model realizes the aims that the structure is simple, the action temperature is accurate and reliable, the service life is long, the responding time is short, and a crystal ball spray head can be conveniently replaced.
Description
Technical field
The present invention relates to the technical field of fire-fighting equipment, especially the technical field of automatic sprinkler.
Background technology
In modern architecture, all be provided with automatic sprinkler.The key element of controlling its action is the temperature-sensing element that is connected on the pipeline, these temperature-sensing elements that are widely used generally are glass alveolitoid temperature-sensing element (claiming the glass marble shower nozzle again), it be with certain chemical reagent as temperature sensing liquid, charge into and make in the garden cylinder glass bubble of a sealing.Because of on fire when making room temperature rise to uniform temperature, liquid is swollen in the bubble rises, vaporizes, when air pressure is raised to a certain degree when indoor, glass envelope bursts, cause the water injection valve of particular design to be opened, the water source automatic sprinkling fire-extinguishing is promptly arranged, this is fairly simple and cheap fire-fighting system.The automatic sprinkler that on this basis, occurs other structures again, done different improvement, for example, 00111390.9) and utility model patent " explosion-proof type the temperature sensing controller " (patent No.: 200320126324.7) all adopt the glass marble shower nozzle to make temperature-sensing element patent of invention " the apartment usable automatic water-spraying fire extinguisher " (patent No.:, the former is after utilizing the glass marble shower nozzle to be heated to burst, the current of water spray are controlled other warning and fire extinguishing system, the latter is after utilizing the glass marble shower nozzle to be heated to burst, and controls other warning and fire extinguishing system by mechanical displacement.But the poor accuracy of glass alveolitoid temperature-sensing element operating temperature, it is relevant with the factors such as character of steam bubble and temperature-sensitive solution in the thickness of glass, intensity, stress distribution, the glass marble, the time wrong quick-fried phenomenon take place.Glass envelope is broken easily in using installation process, causes glass fragment to block water injection valve, so that the water injector akinesia, and production efficiency is lower, and uniformity is poor.
Occurred afterwards with the automatic sprinkler temperature-sensing element of fusible alloy as the temperature sensing material manufacturing, it is compared with the temperature-sensing element of glass alveolitoid, have tangible advantage: fusing point is constant, the accuracy of operating temperature is good, the reliability height, the fusible alloy heat conductivility is good, have a narrow range of temperature, response time is short etc., for example, utility model patent " the automatic sprinkler " (patent No.: 90219069.5) just adopt fusible metal to make temperature-sensing element, be to adopt the cable wire of meltable control bolt tension that water injection valve is controlled, meltable control bolt fusing when breaking out of fire, make cable wire loose, open the water spray valve source sprinkling fire that warms oneself in front of a fire, reach the purpose of fire extinguishing.This apparatus structure complexity, the cost height, and because creep takes place fusible metal easily, mechanical strength is low, and corrosion-resistant also influences its reliable in action, direct instead of glass ball shower nozzle, this just is unfavorable for its applying as temperature-sensing element in automatic sprinkler.
Summary of the invention
The object of the invention provides a kind of simple in structure, operating temperature accurately, reliable, long service life, the response time is short, but the temperature-sensing element of the automatic sprinkler of convenient substituting glass marble shower nozzle.
The present invention adopts following technical scheme for achieving the above object:
The present invention includes two shells, described shell is the cylindrical shape of end sealing, and an end is a hemispherical, and the other end is tapered plane; Above-mentioned two shells are connected by tapered plane, fill fusible alloy in the cavity that two shells surround.
Be coated with fusible alloy on the contact-making surface between above-mentioned two shells,, reduce the shearing force of shell angle filling fusible alloy so that increase the adhesion between the shell.
Above-mentioned shell is made by ceramic material.
The angle of above-mentioned shell tapered plane and shell cylindrical shape geometrical axis is 30～60 degree.
Above-mentioned fusible alloy comprises at least three kinds in bismuth, lead, tin, cadmium, the antimony material.
The present invention adopts technique scheme, make the temperature sensing material of automatic sprinkler with fusible alloy, and make the temperature-sensing element of using as automatic sprinkler with the projectile structure of existing glass alveolitoid temperature-sensing element similar shape and size, this projectile structure is to be formed by connecting by fusible alloy by two shells that have angle.Be fixed between the installation screw and water injection valve of automatic sprinkler, support water injection valve.Under the normal temperature state, water injection valve is in closed condition.When environment temperature reached operating temperature, fusible alloy fusing because hydraulic pressure acts on the fusible alloy type temperature-sensing element on the water injection valve, made this slide along the inclined-plane to the angle shell and separates, comes off, and promptly opens water injection valve, plays the sprinkling fire effect.The present invention compared with prior art has the following advantages:
1, two shells of the present invention are the cylindrical shape of end sealing, and an end is a hemispherical, and the other end is tapered plane, simple in structure, and easily processing, but automatic sprinkler need not changed or reinstall to the glass marble shower nozzle that now has been widely used of convenient substituting again.
2, use fusible alloy to make the temperature sensing material of automatic sprinkler, fusing at a certain temperature, fusing point is constant, and fusible alloy heat conduction is good, temperature error is little, the response time is short, make operating temperature accurately, reliable.
3, fusible alloy of the present invention is to make after adopting several in bismuth, lead, tin, cadmium, the antimony material to mix according to certain ratio high-temperature fusion, and material preparation is convenient.
4, adopt pottery to make the bullet sheathing material, both overcome and made temperature sensing material with fusible alloy merely creep takes place easily, so that reduce the shortcoming of mechanical strength, and can avoid the heat of fusible alloy in the bullet to miss by water valve, that is to say, can not cool off fusible alloy in the bullet with the water valve of running water equality of temperature.And ceramic package is suitable for producing in enormous quantities, and cost is low.
5, the fusible alloy in the temperature-sensing element of the present invention can adopt the method manufacturing of priming by vacuum, is more suitable for producing favourable reducing production costs in batches.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is a user mode schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, the temperature-sensing element 1 of automatic sprinkler of the present invention comprises two ceramic packages 11,12 and fusible alloy 2, described ceramic package 11,12 is the cylindrical shape of end sealing, one end is a hemispherical, the other end is tapered plane, above-mentioned ceramic package 11,12 is connected by tapered plane, and fusible alloy 2 is arranged in the ceramic package.
Be coated with fusible alloy 2 on the contact-making surface between above-mentioned two ceramic packages 11 and 12.The angle of above-mentioned ceramic package 11,12 tapered planes and ceramic package 11,12 cylindrical geometric axis is 30～60 degree, is called for short the oblique angle.Above-mentioned fusible alloy 2 comprises at least three kinds in bismuth, lead, tin, cadmium, the antimony material.
The present invention fusible alloy as temperature sensing material, temperature-sensing element is designed to and has now the projectile structure of glass alveolitoid temperature-sensing element similar shape and size, as shown in Figure 1, fusible alloy type temperature-sensing element with the toilet invention can directly substitute the glass alveolitoid temperature-sensing element that now has been widely used in the automatic sprinkler, it is by holding cylindrical shape, the snaphead that seals, ceramic package 11,12 and the fusible alloy 2 with plane angle to constitute one to one, and the contact-making surface between the two angle shells also is covered with fusible alloy.As shown in Figure 2, the temperature-sensing element 1 of automatic sprinkler of the present invention when mounted, be fixed between the installation screw 3 and water injection valve 5 of automatic sprinkler, screw 3 and water valve 5 are installed to be arranged in the housing 4, temperature-sensing element 1 supports water injection valve 5, make water injection valve 5 be in closed condition, sealing ring 6 is set between water injection valve 5 and the housing, the lower end of automatic sprinkler is threaded onto running water pipe, when environment temperature reaches operating temperature, and the fusible alloy fusing, because hydraulic pressure acts on the fusible alloy type temperature-sensing element on the water injection valve, this is slided along the inclined-plane to the angle shell and separate, come off, promptly open water injection valve, play the sprinkling fire effect.
Shell adopts ceramic material to make, and is adiabatic, can avoid the heat of fusible alloy in the bullet to miss by water valve, that is to say, can not cool off fusible alloy in the bullet with the water valve of running water equality of temperature, and ceramic package is suitable for producing in enormous quantities, and reduces cost.
Be advisable with 30～60 ° in the oblique angle of angle shell, if the oblique angle very little, then the angle of shell case has shear action to fusible alloy in the ball, its vertical compressive strength is at normal temperatures reduced greatly, that is to say easily the fusible alloy in the ball is cut off, if this oblique angle is too big, when then arriving operating temperature, owing to the frictional force between two angles makes difficult drop-off between two shells, also just reduced the accuracy and the reliability of this device action temperature.The diameter of bullet and wall thickness are advisable to guarantee vertical compressive strength.
The manufacture method of this fusible alloy type temperature-sensing element can be such: the fusible alloy materials processing of required operating temperature is become Cylinder, its diameter is approximately suitable with internal diameter of outer cover, its length is slightly larger than hole depth in the angle shell, and this fusible alloy Cylinder inserted respectively in the hole of two angle shells, insert a pair of angle shell in the pattern hole of processing in advance relatively, it is suitable that its aperture is slightly larger than the shell external diameter, exert pressure at shell case one end, whole template is warmed to melting temperature, two angle shells just fuse together with inner fusible alloy, become required temperature-sensing element.
Shell 1,2 adopts ceramic material to make, and the total height of bullet is 19mm, and diameter is 6mm, and internal diameter is 3.5mm.Fusible alloy adopts bismuth (46.5%), plumbous (25%), tin (7%), the prescription of cadmium (21.5%), after high temperature melting, synthetic fusible alloy material stirs, its melting temperature is 65 ℃, become diameter to be about 3.5mm this fusible alloy materials processing, length is about the Cylinder of 9mm, and this fusible alloy Cylinder inserted respectively in the hole of two angle shells, the a pair of angle shell that is inserted with the fusible alloy Cylinder is opposite to mutually in the pattern hole of processing in advance, pattern hole directly through being about 6.1mm, the degree of depth of pattern hole is about 17mm, exert pressure at shell case one end, integral body is warmed to melting temperature, two angle shells just fuse together with inner fusible alloy, become required temperature-sensing element.
The method that fusible alloy type temperature-sensing element of the present invention is installed in automatic sprinkler is as follows: unscrew earlier screw 3 is installed, this fusible alloy type temperature-sensing element is placed between installation screw 3 and the water injection valve 5, screw again screw 3 is installed, compress water injection valve 5 and get final product, automatic sprinkler shown in Figure 2 is to be directly installed on the water supply pipe by screw thread.
What following table was represented is the fusing point of the fusible alloy of different components:
Claims (4)
1, the temperature-sensing element of automatic sprinkler is characterized in that: comprise two shells (11), (12), described shell (11), (12) are the cylindrical shape of end sealing, and an end is a hemispherical, and the other end is a tapered plane; Above-mentioned two shells (11), (12) are connected by tapered plane, fill fusible alloy (2) in the cavity that two shells (11), (12) surround.
2, the temperature-sensing element of automatic sprinkler according to claim 1 is characterized in that: be coated with fusible alloy (2) on the contact-making surface between above-mentioned two shells (11) and (12).
3, the temperature-sensing element of automatic sprinkler according to claim 1 is characterized in that: above-mentioned two shells (11), (12) are made by ceramic material.
4, the temperature-sensing element of automatic sprinkler according to claim 1 is characterized in that: the angle of the tapered plane of above-mentioned shell (11), (12) and shell (11), (12) cylindrical shape geometrical axis is 30～60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201318337U CN201139896Y (en) | 2007-12-21 | 2007-12-21 | Temperature sensing element of automatic spraying firefighting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201318337U CN201139896Y (en) | 2007-12-21 | 2007-12-21 | Temperature sensing element of automatic spraying firefighting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201139896Y true CN201139896Y (en) | 2008-10-29 |
Family
ID=40067613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201318337U Expired - Lifetime CN201139896Y (en) | 2007-12-21 | 2007-12-21 | Temperature sensing element of automatic spraying firefighting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201139896Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101181659B (en) * | 2007-12-21 | 2011-06-08 | 东南大学 | Temperature sensing element of automatic spraying firefighting apparatus |
| CN108404326A (en) * | 2018-05-11 | 2018-08-17 | 辰安云服技术有限公司 | A kind of hidden fire-fighting spraying head |
| CN109985343A (en) * | 2019-03-26 | 2019-07-09 | 浙江瑞城消防设备有限公司 | A kind of temperature-sensitive starter and the wisdom spray head including the device |
-
2007
- 2007-12-21 CN CNU2007201318337U patent/CN201139896Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101181659B (en) * | 2007-12-21 | 2011-06-08 | 东南大学 | Temperature sensing element of automatic spraying firefighting apparatus |
| CN108404326A (en) * | 2018-05-11 | 2018-08-17 | 辰安云服技术有限公司 | A kind of hidden fire-fighting spraying head |
| CN109985343A (en) * | 2019-03-26 | 2019-07-09 | 浙江瑞城消防设备有限公司 | A kind of temperature-sensitive starter and the wisdom spray head including the device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201139896Y (en) | Temperature sensing element of automatic spraying firefighting apparatus | |
| US20130312842A1 (en) | Heat concentrating type self-operated automatic fire valve | |
| SG183885A1 (en) | A modular automatic spray nozzle | |
| CN101181659B (en) | Temperature sensing element of automatic spraying firefighting apparatus | |
| KR101200621B1 (en) | Sprinkler for keeping from freezing and bursting | |
| CN203743498U (en) | Vertical fire sprinkler valve with one inlet and multiple outlets | |
| CN112107817A (en) | Combined distribution type temperature sensing self-starting fire extinguishing device | |
| CN203469281U (en) | Slow-release type automatic dry-powder extinguishing device | |
| CN101670160A (en) | Electro-thermal detonation fast-response temperature-sensitive rotary spraying fire extinguishing apparatus | |
| CN103861230A (en) | Automatic spraying fire extinguishing system on roof | |
| JPH1189961A (en) | Thermo-sensitive disassembling part for sprinkler head | |
| CN209019842U (en) | Impacting type temperature sensing glass ball starter | |
| RU185173U1 (en) | HEAT LOCK SPRINKLER IRRIGATOR | |
| KR200398251Y1 (en) | Early reaction sprinkler head for fire fighting | |
| US20220266078A1 (en) | Fire protection device with wax coating | |
| CN215691289U (en) | Electric selection valve of fire extinguishing device | |
| CN109519594B (en) | Shape memory alloy automatic fire-proof valve | |
| CN207804840U (en) | Applicator | |
| CN208552929U (en) | A kind of valve of hanged extinguishing equipment | |
| CN219662735U (en) | Temperature-sensing release nozzle capable of being actively started | |
| CN204099674U (en) | Safe pressure relief device | |
| CN206560614U (en) | Seal receptacle and shower nozzle | |
| CN211097254U (en) | Single-bottle active automatic fire extinguishing device | |
| CN111249658A (en) | Low-voltage single-phase water mist spray head | |
| CN209952094U (en) | Novel double-control water mist spray head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081029 Effective date of abandoning: 20071221 |