CN203303544U - Self-rotating type foam spray nozzle - Google Patents
Self-rotating type foam spray nozzle Download PDFInfo
- Publication number
- CN203303544U CN203303544U CN201320383107XU CN201320383107U CN203303544U CN 203303544 U CN203303544 U CN 203303544U CN 201320383107X U CN201320383107X U CN 201320383107XU CN 201320383107 U CN201320383107 U CN 201320383107U CN 203303544 U CN203303544 U CN 203303544U
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- foam
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- spray orifice
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- spin
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Abstract
The utility model relates to a fire-extinguishing spray nozzle and particularly relates to a self-rotating type foam spray nozzle for spraying compressed air foams. The self-rotating type foam spray nozzle comprises a T-branch pipe and an input pipeline, wherein the T-branch pipe consists of a main pipe and branch pipes which are vertical to the main pipe and are communicated with the main pipe; the other end of each branch pipe is rotatably connected with the input pipeline; two ports of the main pipe are respectively sealed; a main spray hole and at least one secondary spray hole are formed in positions of the main pipe, deviating from the central axis of each branch pipe, wherein the diameter of each secondary spray hole is smaller than that of the main spray hole; when being sprayed into the main pipe through the input pipeline, compressed foams are sprayed outwards from the main spray hole and the secondary spray holes and the recoil force of the compressed foams pushes the T-branch pipe to rotate.
Description
Technical field
The utility model relates to a kind of fire extinguishing sprayer, relates in particular to a kind of spin foam nozzle transition that sprays compressed-air foam.
Background technology
The shower nozzle that can be used at present spraying fire foam mainly contains two types, attraction type shower nozzle and non-attraction type shower nozzle.
The attraction type foam nozzle can air amount, and mixed liquor is through the mechanical agitation of air, then forms the foam ejection by the barrier effect of the wire netting before shower nozzle.The attraction type foam nozzle is adopted as the fire foam of protide and other types more, is applicable to the regular-type foam fire extinguishing system of negative inspiratory pressure formula, as foam-spray system.
Non-attraction type foam nozzle does not have the structure of air amount, from the shower nozzle ejection is the fog foam mixed liquor, due to the stirring action that there is no air, the coefficient of foaming of foam is lower, therefore non-attraction type foam nozzle adopts the film forming class A foam A extinguishing chemicals such as MJPZ, film forming fluorine albumen more.Common non-attraction type foam nozzle is sprinkler tip at present, and sprinkler tip makes the current of spout ejection be dispersed into specific shape by splash box, is mainly used in the foam-water spraying combined system.
CAFS is by initiatively being injected into gases at high pressure in foam mixing liquid to produce foam, and foam mixing liquid has formed foam in the inside of system, by the attraction type foam nozzle, forms foam at the spray orifice air amount therefore do not need.Owing to having introduced gases at high pressure, during the compressed-air foam ejection, momentum is higher, if adopt sprinkler tip violent the shock to occur with splash box, causes the structure of foam and performance to be destroyed.
Therefore, the attraction type shower nozzle and the non-attraction type shower nozzle that are commonly used at present to spray fire foam all are difficult to meet the fixedly requirement of ductwork type CAFS.
The utility model content
The utility model is to solve existing foam nozzle to be difficult to meet the fixedly problem of ductwork type CAFS, and a kind of fixedly spin foam nozzle transition of ductwork type CAFS that is applicable to is provided.
In order to address the above problem, the utility model is achieved through the following technical solutions:
A kind of spin foam nozzle transition of the present utility model, comprise three-way pipe and intake line, described three-way pipe forms by supervisor with perpendicular to the arm of being responsible for and be communicated with supervisor, the other end of described arm is rotatably connected with intake line, two ports of described supervisor seal respectively, on described supervisor, depart from the arm axis and be provided with a main jet hole and at least one time spray orifice, the diameter of described spray orifice all is less than the diameter in main jet hole; When input channel sprayed into supervisor, compression foam was from the main jet hole and time spray orifice outwards sprays and the recoil strength of compression foam promotes the three-way pipe rotation when compression foam.
Further, the quantity of described spray orifice is 1-4, and described spray orifice is distributed in supervisor's middle part or bottom to increase spray area.
Further, described arm is connected by swivel bearing with intake line.
Compared with prior art, the beneficial effects of the utility model are: spin foam nozzle transition of the present utility model utilizes the basic principle of jet theory, when compressed-air foam sprays, can produce higher momentum and drive supervisor's autorotation, changed like this water distribution manner, rotation water distributing is the new breakthrough of water distribution manner, owing to there not being splash box, namely do not need with the sharp impacts of splash box, it to be scattered into to specific shape by compression foam, can greatly reduce the loss of momentum that collision process causes and to the destruction of foaming structure, effectively improve foam and penetrate the ability that flame arrives fuel surface, the extinguishing property of elevator system.Simultaneously, rotation water distributing can effectively increase the protected area of single shower nozzle, under the prerequisite that guarantees intensity of spray irrigation, can strengthen the arrangement pitch of shower nozzle, in identical active area, can reduce the quantity of shower nozzle, simplifies system pipeline.
The accompanying drawing explanation
Fig. 1 is the structural representation of spin foam nozzle transition of the present utility model (1 spray orifice);
Fig. 2 is the structural representation of spin foam nozzle transition of the present utility model (2 spray orifices).
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for the utility model is described, but are not used for limiting scope of the present utility model.
As depicted in figs. 1 and 2, a kind of spin foam nozzle transition of the present utility model, comprise three-way pipe and intake line 1, three-way pipe forms by supervisor 2 with perpendicular to supervisor 2 and with supervisor's 2 arms that are communicated with 3, the other end of arm 3 is rotatably connected with intake line 1, two ports of supervisor 2 seal respectively, on supervisor 2, depart from arm 3 axis and are provided with a main jet hole 4 and at least one time spray orifice, and the diameter of inferior spray orifice all is less than the diameter in main jet hole 4; When compression foam sprays into supervisor 2 the time through input channel 1, compression foam is from the main jet hole 4 and time spray orifice outwards sprays and the recoil strength of compression foam promotes the three-way pipe rotation; Spin foam nozzle transition of the present utility model utilizes the basic principle of jet theory, when compressed-air foam sprays, can produce higher momentum and drive supervisor's autorotation, changed like this water distribution manner, rotation water distributing is the new breakthrough of water distribution manner, owing to there not being splash box, namely do not need with the sharp impacts of splash box, it to be scattered into to specific shape by compression foam, can greatly reduce the loss of momentum that collision process causes and to the destruction of foaming structure, effectively improve foam and penetrate the ability that flame arrives fuel surface, the extinguishing property of elevator system.Simultaneously, rotation water distributing can effectively increase the protected area of single shower nozzle, under the prerequisite that guarantees intensity of spray irrigation, can strengthen the arrangement pitch of shower nozzle, in identical active area, can reduce the quantity of shower nozzle, simplifies system pipeline.
A kind of spin foam nozzle transition of the present utility model, comprise T-shaped three-way pipe and intake line 1, three-way pipe forms by supervisor 2 with perpendicular to the arm 3 of being responsible for 2, the other end of arm 3 is connected by swivel bearing 5 with intake line 1, intake line 1 and arm 3 are full of and are connected with swivel bearing 5 respectively, two ports of supervisor 2 seal in case the compression foams of being responsible in 2 leak by seal 6 respectively, on supervisor 2, depart from the arm axis and be provided with a main jet hole 4 and at least one time spray orifice, and the diameter of inferior spray orifice all is less than the diameter in main jet hole 4; As shown in Figure 1, supervisor 2 left side central portion is provided with main jet hole 4, downside is provided with time spray orifice 7, the compression foam that main jet hole 4 and time spray orifice 7 spray to be responsible for 2 produce make a concerted effort to have the component that make to be responsible for 2 rotations, main jet hole 4 guarantees that spin foam nozzle transition has enough large spray area, spray orifice 7 is mainly in order to make zone under the foam coverage shower nozzle, the white point of not leaving a blank; As shown in Figure 2, supervisor 2 left side central portion is provided with main jet hole 4, supervisor 2 arranged on left and right sides is respectively arranged with spray orifice 8 and spray orifice 9 for the first time for the second time, sprinkling amount and sprinkler discharge density have been improved like this, spray main jet hole 4, for the first time the compression foam that sprays of spray orifice 8 and spray orifice 9 for the second time make a concerted effort apart from not parallel with the axis of arm, can drive 360 ° of rotations of three-way pipe.
A kind of transition designed main jet of foam nozzle hole of spinning of the present utility model is that recoil strength when utilizing the compression foam ejection promotes the triplate line rotation with the biasing of time spray orifice; improved spin foam nozzle spray area transition; secondly, the main jet hole will meet with the Position Design of time spray orifice the uniformity that the protected area inner foam sprays distribution.When determining the number, size of spray orifice and position, reality to take into full account aspect two; the one, the momentum that takes full advantage of compressed-air foam is realized rotation; the 2nd, the white point of not leaving a blank in protected area; realize that good sprinkling distributes; total spray orifice number is generally 1-5; also can be for a plurality of; but generally be not 1; because 1 spray orifice is difficult to realize that the even sprinkling of foam distributes; and when spray orifice is 1, can not be positioned on the central symmetry axes of foam nozzle spin transition, otherwise being difficult to realize the rotation of shower nozzle.
A kind of spin foam nozzle transition of the present utility model has that protected area is large, and distribution performance is good, and simple in structure, the characteristics that are easy to process, be highly suitable for the fixedly sprinkling foam fire-fighting of the CAFS of ductwork type.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (3)
- One kind spin transition foam nozzle, comprise three-way pipe and intake line, it is characterized in that: described three-way pipe forms by supervisor with perpendicular to the arm of being responsible for and be communicated with supervisor, the other end of described arm is rotatably connected with intake line, two ports of described supervisor seal respectively, on described supervisor, depart from the arm axis and be provided with a main jet hole and at least one time spray orifice, the diameter of described spray orifice all is less than the diameter in main jet hole; When input channel sprayed into supervisor, compression foam was from the main jet hole and time spray orifice outwards sprays and the recoil strength of compression foam promotes the three-way pipe rotation when compression foam.
- 2. a kind of spin foam nozzle transition according to claim 1, it is characterized in that: the quantity of described spray orifice is 1-4, described spray orifice is distributed in supervisor's middle part or bottom to increase spray area.
- 3. a kind of spin foam nozzle transition according to claim 1, it is characterized in that: described arm is connected by swivel bearing with intake line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320383107XU CN203303544U (en) | 2013-07-01 | 2013-07-01 | Self-rotating type foam spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320383107XU CN203303544U (en) | 2013-07-01 | 2013-07-01 | Self-rotating type foam spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203303544U true CN203303544U (en) | 2013-11-27 |
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ID=49609785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320383107XU Expired - Fee Related CN203303544U (en) | 2013-07-01 | 2013-07-01 | Self-rotating type foam spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203303544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174136A (en) * | 2014-08-27 | 2014-12-03 | 广西福新投资有限公司 | Rotary gun head of high-pressure water mist fire extinguisher water gun |
-
2013
- 2013-07-01 CN CN201320383107XU patent/CN203303544U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174136A (en) * | 2014-08-27 | 2014-12-03 | 广西福新投资有限公司 | Rotary gun head of high-pressure water mist fire extinguisher water gun |
| CN104174136B (en) * | 2014-08-27 | 2016-09-28 | 广西福新投资有限公司 | High-pressure water mist fire extinguisher hydraulic giant rotary rifle head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20170701 |