CN101554514B - Differential pressure balanced type proportion mixing device - Google Patents
Differential pressure balanced type proportion mixing device Download PDFInfo
- Publication number
- CN101554514B CN101554514B CN2009100226558A CN200910022655A CN101554514B CN 101554514 B CN101554514 B CN 101554514B CN 2009100226558 A CN2009100226558 A CN 2009100226558A CN 200910022655 A CN200910022655 A CN 200910022655A CN 101554514 B CN101554514 B CN 101554514B
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- water inlet
- pipe section
- piston
- blender
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Abstract
The invention relates to the field of fire technology and discloses a differential pressure balanced type proportion mixing device which comprises a mixer and a nozzle arranged at a water inlet of themixer, and is characterized by further comprising a water inlet pipe section connected at the water inlet of the mixer and a T-shaped three way pipe section; an outlet of the left side pipe section o f the T-shaped three way pipe section is communicated with a foam liquid pipe is communicated with a foam liquid pipe, an outlet of the middle pipe section is communicated with a foam liquid inlet of the mixer, and the right side pipe section is internally fixed with a baffle ring; an outlet of the right side pipe section is connected with a cylinder body which is internally provided with a piston, a helical spring is arranged between the left end of the piston and the baffle ring, and the right end of the piston and the cylinder body form a water cavity; the center of axes of the water inlet pipe section is provided with a drainage tube which penetrates out of the side wall of the water inlet pipe section and is communicated with the water cavity.
Description
Technical field
The present invention relates to the fire prevention field, particularly a kind of differential pressure balanced type proportion mixing device.
Background technology
In traditional pressure proportioner, it is big that foam solution and press water mixing ratio change fluctuation with pressure (water pressure or foam pressure), and the inlet pressure of foam solution inlet pressure and water can not keep constant pressure reduction, and the mixing ratio poor stability influences the fire-fighting effect.
Summary of the invention
The object of the present invention is to provide a kind of differential pressure balanced type proportion mixing device, can regulate the foam solution inlet pressure automatically, keep the inlet pressure of this pressure and water to maintain on the constant pressure reduction, and then improve the stability of foam solution and press water mixed proportion.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A kind of differential pressure balanced type proportion mixing device comprises blender, is arranged on the nozzle of the water inlet of blender, it is characterized in that, also comprises the water inlet segment that is connected the blender water inlet, T tee fitting T section; The left side pipeline section outlet of described T tee fitting T section is communicated with the foam solution pipe, and middle pipeline section outlet is communicated with the foam solution import of blender; Be fixed with baffle ring in the pipeline section of right side, pipeline section outlet in right side is connected with cylinder body, is provided with piston in the cylinder body, is provided with helical spring between the left end of piston and the described baffle ring, and the right-hand member of piston and cylinder body form water cavity; The axis centre of described water inlet segment is provided with drainage tube, and drainage tube passes the water inlet segment sidewall and is communicated with described water cavity.
Further improvement of the present invention is: be provided with flow-through orifice between the middle pipeline section outlet of described T tee fitting T section and the foam solution import of blender.
Because the present invention is on traditional pressure proportioner basis, cylinder body and the piston of regulating pressure reduction have been increased, rely on the keep-up pressure pressure balance of water and foam solution of pre-pressure of the spring, thereby the foam solution pressure that guarantees to enter blender avoids press water to enter the foam solution pipeline all the time greater than the pressure of water.The pressure of water cavity is regulated and is relied on the drainage tube introducing to enter the pressure water action of blender in piston, rely on the piston pressurized to move the pressure balance of regulating foam solution and press water, overcome traditional pressure proportioner foam solution and press water mixing ratio and changed the big shortcoming of fluctuation with pressure (water pressure or foam pressure), avoid press water to blow back into the foam solution pipeline, and then influenced the possibility of mixing ratio.In addition, this differential pressure balanced type proportion mixing device is provided with flow-through orifice between the foam solution import of the middle pipeline section outlet of T tee fitting T section and blender, the mixing ratio of foam solution and press water can be controlled at best level.
Description of drawings
Fig. 1 is a kind of differential pressure balanced type proportion mixing device of the present invention.
The specific embodiment
With reference to Fig. 1, a kind of differential pressure balanced type proportion mixing device mainly comprises: blender 1, be arranged on the nozzle 2 of the water inlet of blender 1, and be connected the water inlet segment 3 of blender 1 water inlet, T tee fitting T section 4.
The left side pipeline section outlet of T tee fitting T section 4 connects the foam solution pipe by flange.Middle pipeline section outlet is connected by flange with the foam solution import of blender 1, is fixed with flow-through orifice 5 between the flange.Be welded with baffle ring 9 in the pipeline section of right side; Right side pipeline section outlet is welded with cylinder body 6, and cylinder body 6 left ends are communicated with the right side pipeline section, and right-hand member has sealing cylinder cap 10; Be provided with piston 7 in the cylinder body 6, be provided with helical spring 8 between the left end of piston 7 and the baffle ring 9, piston 7 move left and right can change the foam solution volume of right side pipe; The right-hand member of piston 7 and cylinder body 6 form water cavity.Axis centre in the water inlet segment 3 is provided with drainage tube 12, drainage tube 12 inlets point to water inlet segment 3 inlets, and drainage tube 12 passes water inlet segment 3 sidewalls and connects by copper tube 11 after the axis centre of water inlet segment 3 prolongs one section, penetrate the end cap 10 of cylinder body 6, stretch into water cavity.
Differential pressure balanced type proportion mixing device of the present invention keeps the principle of pressure balance to be: piston 7 separates the press water in foam solution and the water cavity, rely on helical spring 8 precompressions to keep the pressure reduction of foam solution and press water, thereby guarantee to enter the foam solution pressure of blender 1 all the time greater than the water pressure that enters blender 1, avoid press water to enter the foam solution pipeline, influence the mixing ratio of foam solution and water.When blender 1 water inlet pressure increased, the pressure of water cavity increased, and promoted piston 7 and was moved to the left, and the volume of left duct section is compressed, and foam solution pressure increases, up to piston 7 left and right sides pressure balances; Otherwise when blender 1 water inlet pressure reduces, the pressure of water cavity is along with reducing, and piston 7 moves right under the promotion of foam solution pressure, and the volume of right duct section is compressed, and foam solution pressure reduces, up to piston 7 left and right sides pressure balances.When piston 7 left and right sides pressure balances, the flow of foam solution depends on the aperture of flow-through orifice 5, therefore can reach the optimum mixture ratio of foam solution and press water by the aperture of design discharge orifice plate 5.
Claims (2)
1. a differential pressure balanced type proportion mixing device comprises blender (1), is arranged on the nozzle (2) of the water inlet of blender (1), it is characterized in that, also comprises the water inlet segment (3) that is connected blender (1) water inlet, T tee fitting T section (4); The left side pipeline section outlet of described T tee fitting T section (4) is communicated with the foam solution pipe, and middle pipeline section outlet is communicated with the foam solution import of blender (1); Be fixed with baffle ring (9) in the pipeline section of right side, right side pipeline section outlet is connected with cylinder body (6), be provided with piston (7) in the cylinder body (6), be provided with helical spring (8) between the left end of piston (7) and the described baffle ring (9), the right-hand member of piston (7) and cylinder body (6) form water cavity; The axis centre of described water inlet segment (3) is provided with drainage tube (12), and drainage tube (12) passes water inlet segment (3) sidewall and is communicated with described water cavity.
2. a kind of differential pressure balanced type proportion mixing device according to claim 1 is characterized in that, is provided with flow-through orifice (5) between the middle pipeline section outlet of described T tee fitting T section (4) and the foam solution import of blender (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100226558A CN101554514B (en) | 2009-05-22 | 2009-05-22 | Differential pressure balanced type proportion mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100226558A CN101554514B (en) | 2009-05-22 | 2009-05-22 | Differential pressure balanced type proportion mixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101554514A CN101554514A (en) | 2009-10-14 |
| CN101554514B true CN101554514B (en) | 2011-09-21 |
Family
ID=41172893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100226558A Expired - Fee Related CN101554514B (en) | 2009-05-22 | 2009-05-22 | Differential pressure balanced type proportion mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101554514B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043217A (en) * | 2014-06-04 | 2014-09-17 | 上海金盾消防安全科技有限公司 | Dynamic balance pressure proportioning mixer |
| CN108771808B (en) * | 2018-07-27 | 2023-03-31 | 赵晔 | Hydraulic piston type foam proportion mixing method and foam proportion mixer |
| CN114146339B (en) * | 2021-12-09 | 2024-02-09 | 江西荣和特种消防设备制造有限公司 | Balanced type proportional mixing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB848501A (en) * | 1958-01-04 | 1960-09-21 | Carmichael And Sons Worcester | Improvements relating to apparatus for bi-fluid or multi-fluid spraying |
| CN201135876Y (en) * | 2007-12-20 | 2008-10-22 | 西安新竹防灾救生设备有限公司 | Balance type proportional mixer |
| CN201168362Y (en) * | 2008-03-29 | 2008-12-24 | 陈方明 | Regulation type proportional mixer |
| CN201418971Y (en) * | 2009-05-22 | 2010-03-10 | 西安新竹防灾救生设备有限公司 | Differential pressure balanced proportioning device |
-
2009
- 2009-05-22 CN CN2009100226558A patent/CN101554514B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB848501A (en) * | 1958-01-04 | 1960-09-21 | Carmichael And Sons Worcester | Improvements relating to apparatus for bi-fluid or multi-fluid spraying |
| CN201135876Y (en) * | 2007-12-20 | 2008-10-22 | 西安新竹防灾救生设备有限公司 | Balance type proportional mixer |
| CN201168362Y (en) * | 2008-03-29 | 2008-12-24 | 陈方明 | Regulation type proportional mixer |
| CN201418971Y (en) * | 2009-05-22 | 2010-03-10 | 西安新竹防灾救生设备有限公司 | Differential pressure balanced proportioning device |
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| Publication number | Publication date |
|---|---|
| CN101554514A (en) | 2009-10-14 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20210522 |