CN207034292U - The blender of fire-fighting foam solution extinguishing chemical - Google Patents
The blender of fire-fighting foam solution extinguishing chemical Download PDFInfo
- Publication number
- CN207034292U CN207034292U CN201720921210.3U CN201720921210U CN207034292U CN 207034292 U CN207034292 U CN 207034292U CN 201720921210 U CN201720921210 U CN 201720921210U CN 207034292 U CN207034292 U CN 207034292U
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- CN
- China
- Prior art keywords
- foam
- fire
- flange
- hole
- mixing
- 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 - Fee Related
Links
- 239000006260 foam Substances 0.000 title claims abstract description 52
- 239000000126 substance Substances 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000007667 floating Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 11
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a kind of self-balancing overflow valve for the mixing of fire-fighting class A foam A liquid, it includes：Valve body (1), the inlet flange (2) and outlet(discharge) flange (3) being respectively connected with two ends of valve body (1), fixed spool (4) in valve body (1), the floating plug (5) being movably arranged in fixed spool (4)；Through hole (3 1) and boss (3 2) are offered on outlet(discharge) flange (3), spring (6) is installed on boss (3 2), the hole being connected with through hole (3 1) is offered on boss (3 2)；Bulge loop (5 1) is machined with the outside face of cylinder of floating plug (5), the inner hole of bulge loop (5 1) and fixed spool (4), realizes guiding and sealing function；Spring (6) is located in floating plug (5).The utility model is reasonable in design, and foam and water mixing efficiency are high, response speed faster, precision it is high, stable, good extinguishing effect.
Description
Technical field
It the utility model is related to a kind of fire-fighting equipment, and in particular to a kind of self-balancing for the mixing of fire-fighting class A foam A liquid is overflow
Flow valve.
Background technology
Above mechanism causes water pipe to be tended towards stability with foam solution pipe pressure difference, realizes foam liquid mixing system steady operation,
Improve extinguishing property.
China's economic loss larger caused by fire every year and personnel's injury, the major advantage of foam truck is control fire
Speed is fast, and scene of a fire water-use efficiency is high, has a heat-insulated radiation proof, the remarkable result of anti-resume combustion, can substantially reduce the water of scene of fire
Stain is lost.The foam liquid mixing system operation principle of prior art foam truck is：Foam solution is pumped directly into water route and mixed
Conjunction forms foam mixing liquid, needs to adjust foam mixing liquid injection flow according to fire extinguishing demand in fire extinguishing procedure, while according to current
Amount adjusts the foam solution amount of being pumped into a manner of automatically controlled, to maintain water with foam solution mixing ratio as setting value, ensures that the foam of output mixes
Close liquid and meet scene of a fire demand.The defects of above-mentioned foam liquid mixing system is：When injection flow changes, influenceed by system inertia,
Control to foam pump will have a delay, it is impossible to change foam solution output quantity in time, cause mixing ratio to fluctuate, leverage
Bubbling efficiency, reduce extinguishing effect and cause foam solution to waste.
Therefore, necessary on the basis of prior art, research and development are a kind of reasonable in design, easy to use, can be fast
The regulation foam solution of speed and water mixed proportion, the self-balancing overflow valve for being used for the mixing of fire-fighting class A foam A liquid of good extinguishing effect.
The content of the invention
Purpose of utility model：The purpose of this utility model is to solve the deficiencies in the prior art, there is provided a kind of structure is set
Meter is reasonable, can quickly adjust foam solution and water mixed proportion, and good extinguishing effect is used for the certainly flat of fire-fighting class A foam A liquid mixing
Weigh overflow valve.
Technical scheme：In order to realize the above object the technical scheme that the utility model is taken is：
A kind of self-balancing overflow valve for the mixing of fire-fighting class A foam A liquid, it includes：Valve body, pass through the two of screw and valve body
The inlet flange and outlet(discharge) flange being respectively connected with are held, the fixed spool in valve body, is movably arranged in fixed spool
Floating plug；
Through hole and boss are offered on described outlet(discharge) flange, through hole is used to connect pressurized fluid, and bullet is provided with boss
Spring, the hole being connected with through hole is offered on boss；
The inner hole of multiple bulge loops in parallel, bulge loop and fixed spool is machined with the outside face of cylinder of floating plug,
Realize guiding and sealing function；Spring is located in floating plug.
Preferably, it is above-described for fire-fighting class A foam A liquid mixing self-balancing overflow valve, inlet flange with
Sealing ring is provided between fixed spool.
Preferably, it is above-described for fire-fighting class A foam A liquid mixing self-balancing overflow valve, outlet(discharge) flange with
Sealing ring is provided between fixed spool.
Preferably, the above-described self-balancing overflow valve for the mixing of fire-fighting class A foam A liquid, valve body and entrance
Sealing ring is equipped between flange and outlet(discharge) flange.
When self-balancing overflow valve provided by the utility model for the mixing of fire-fighting class A foam A liquid actually uses, self-balancing is overflow
Stream valve inlet flange connects with foam pump export pipeline branch pipe, self-balancing overflow valve outlet(discharge) flange and foam pump entrance pipe branch pipe
Connect, through hole connects with water main branch pipe on outlet(discharge) flange.In the course of work, when water main pressure is relatively low, self-balancing overflow
Valve is opened, and part foam liquid is back to foam pump intake by overflow valve, and foam pump discharge is also at pressure compared with low state；When main water
When pipe pressure is higher, self-balancing overflow valve is closed, and foam solution can not be flowed back by overflow valve, and foam pump discharge pressure is higher；More than
Mechanism causes water pipe to be tended towards stability with foam solution pipe pressure difference, realizes foam liquid mixing system steady operation, improves extinguishing property.
Beneficial effect：Self-balancing overflow valve and prior art described in the utility model for the mixing of fire-fighting class A foam A liquid
Compared to advantages below：
Self-balancing overflow valve provided by the utility model for the mixing of fire-fighting class A foam A liquid, it is reasonable in design, adopt
With mechanical regulation, structure is simpler, after foam liquid mixing system, foam liquid with water mixed proportion governing speed faster,
Precision is higher, operation is more reliable, and foam is high with water mixing efficiency, good extinguishing effect, has wide range of applications.
Brief description of the drawings
Fig. 1 is that the structure when self-balancing overflow valve provided by the utility model for the mixing of fire-fighting class A foam A liquid is closed is shown
It is intended to.
Fig. 2 is that the structure when self-balancing overflow valve provided by the utility model for the mixing of fire-fighting class A foam A liquid is opened is shown
It is intended to.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the utility model is furtherd elucidate, it should be understood that these embodiments are only used for
Illustrate the utility model rather than limitation the scope of the utility model, after the utility model has been read, art technology
Modification of the personnel to the various equivalent form of values of the present utility model falls within the application appended claims limited range.
As depicted in figs. 1 and 2, a kind of self-balancing overflow valve for the mixing of fire-fighting class A foam A liquid, it includes：Valve body 1, lead to
Inlet flange 2 and outlet(discharge) flange 3 that two ends of screw and valve body 1 are respectively connected with are crossed, the fixed spool 4 in valve body 1 is living
The dynamic floating plug 5 in fixed spool 4；
Through hole 3-1 and boss 3-2 are offered on described outlet(discharge) flange 3, through hole 3-1 is used to connect pressurized fluid, boss
Spring 6 is installed on 3-2, the hole being connected with through hole 3-1 is offered on boss 3-2；
Multiple bulge loop 5-1 are machined with the outside face of cylinder of floating plug 5, bulge loop 5-1 and fixed spool 4 endoporus are matched somebody with somebody
Close, realize guiding and sealing function；Spring 6 is located in floating plug 5.
The above-described self-balancing overflow valve for the mixing of fire-fighting class A foam A liquid, between inlet flange 2 and fixed spool 4
Provided with sealing ring.Sealing ring is provided between outlet(discharge) flange 3 and fixed spool 4.Between valve body 1 and inlet flange 2 and outlet(discharge) flange 3
It is equipped with sealing ring.
As shown in figure 1, share 3 in the self-balancing overflow valve described in the utility model for the mixing of fire-fighting class A foam A liquid
Cavity：The outside of inlet flange 2, the outside of fixed spool 4 and floating plug 5 surrounds entrance cavity；Valve body 1, outlet(discharge) flange 3, consolidate
The outside of fixed valve plug 4 and floating plug 5 surrounds spill cavity；The inner side of outlet(discharge) flange 3, the inner side of fixed spool 4 and floating plug 5
Surround and compare pressure chamber.Under this state, entrance cavity is less than to the thrust in the outside of floating plug 5 to be compared pressure chamber and is connect by hole 3-1
Are pushed to by arrival end, is connect with fixed spool 4 for the thrust of the inner side of floating plug 5, floating plug 5 caused by pressurized fluid and spring
Touch, entrance cavity is disconnected with spill cavity, and self-balancing overflow valve is closed.
As shown in Fig. 2 compare pressure chamber when entrance cavity is more than to the thrust of floating plug 5 inner side of floating plug 5 is pushed away
During power, floating plug 5 is pushed to the port of export, and entrance cavity penetrates with spill cavity, and self-balancing overflow valve is in opening.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (4)
1. a kind of self-balancing overflow valve for the mixing of fire-fighting class A foam A liquid, it is characterised in that it includes：Valve body (1), passes through spiral shell
The inlet flange (2) and outlet(discharge) flange (3) that two ends of nail and valve body (1) are respectively connected with, the fixed spool in valve body (1)
(4) floating plug (5), being movably arranged in fixed spool (4)；
Through hole (3-1) and boss (3-2) are offered on described outlet(discharge) flange (3), through hole (3-1) is used to connect pressurized fluid,
Spring (6) is installed on boss (3-2), the hole being connected with through hole (3-1) is offered on boss (3-2)；
Bulge loop (5-1) is machined with the outside face of cylinder of floating plug (5), the endoporus of bulge loop (5-1) and fixed spool (4) is matched somebody with somebody
Close, realize guiding and sealing function；Spring (6) is located in floating plug (5).
2. the self-balancing overflow valve according to claim 1 for the mixing of fire-fighting class A foam A liquid, it is characterised in that entrance method
Sealing ring is provided between blue (2) and fixed spool (4).
3. the self-balancing overflow valve according to claim 2 for the mixing of fire-fighting class A foam A liquid, it is characterised in that outlet method
Sealing ring is provided between blue (3) and fixed spool (4).
4. the self-balancing overflow valve according to claim 3 for the mixing of fire-fighting class A foam A liquid, it is characterised in that valve body
(1) it is equipped with sealing ring between inlet flange (2) and outlet(discharge) flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720921210.3U CN207034292U (en) | 2017-07-27 | 2017-07-27 | The blender of fire-fighting foam solution extinguishing chemical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720921210.3U CN207034292U (en) | 2017-07-27 | 2017-07-27 | The blender of fire-fighting foam solution extinguishing chemical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034292U true CN207034292U (en) | 2018-02-23 |
Family
ID=61462751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720921210.3U Expired - Fee Related CN207034292U (en) | 2017-07-27 | 2017-07-27 | The blender of fire-fighting foam solution extinguishing chemical |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269894A (en) * | 2017-07-27 | 2017-10-20 | 南京德沃克自动化有限公司 | The blender of fire-fighting foam solution extinguishing chemical |
-
2017
- 2017-07-27 CN CN201720921210.3U patent/CN207034292U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269894A (en) * | 2017-07-27 | 2017-10-20 | 南京德沃克自动化有限公司 | The blender of fire-fighting foam solution extinguishing chemical |
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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: 20180223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |