CN111450451A - Integrated proportional mixer - Google Patents
Integrated proportional mixer Download PDFInfo
- Publication number
- CN111450451A CN111450451A CN202010426481.8A CN202010426481A CN111450451A CN 111450451 A CN111450451 A CN 111450451A CN 202010426481 A CN202010426481 A CN 202010426481A CN 111450451 A CN111450451 A CN 111450451A
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- port
- pipe
- proportioner
- valve
- wall
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- 239000007788 liquid Substances 0.000 claims abstract description 63
- 239000006260 foam Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000000903 blocking effect Effects 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
-
- 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
- A62C31/03—Nozzles specially adapted for fire-extinguishing adjustable, e.g. from spray to jet or vice versa
-
- 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
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Safety Valves (AREA)
Abstract
The invention belongs to the technical field of fire-fighting equipment. The invention discloses an integrated proportioner, which comprises a proportioner body, a nozzle, a connecting pipe and a balance valve assembly, wherein the nozzle is arranged on the proportioner body; the nozzle is arranged in the proportioner body, and the nozzle is provided with a self-adaptive water blocking device; and the balance valve assembly is provided with a foam liquid adjusting device, and the connecting pipe is used for connecting the proportioner body and the balance valve assembly. The invention has the beneficial effects that: it is rational in infrastructure, can be according to fire control pressure discharge size and the foam liquid measure that pressure size automatic balance adjusted entering ratio blender is originally internal, make its mixing ratio reach the standard requirement. The application range of the integrated proportional mixer is wide, and the flow regulation range is large.
Description
Technical Field
The invention relates to the technical field of fire-fighting equipment, in particular to an integrated proportional mixer.
Background
The foam proportional mixing device is a core component of a foam fire extinguishing system, the balanced proportional mixing device is an advanced foam mixing device, and the proportional mixer is a core component of the balanced proportional mixing device. The balanced proportional mixing device pressurizes foam liquid through a foam pump, mixes the foam liquid with fire-fighting pressure water through a proportional mixer to form foam mixed liquid, and conveys the foam mixed liquid to a foam generating device for fire extinguishing. The balance valve automatically adjusts the amount of foam liquid entering the proportional mixer according to the fire fighting water pressure and the foam liquid pressure, so that the mixing ratio of the foam liquid and the fire fighting water reaches the standard requirement.
The flow range of the balance type proportional mixing device in rated working pressure is generally not high due to the factors of design structure and installation type of the proportional mixer adopted by the prior balance type proportional mixing device, and the mixing ratio of the design requirement can not be met in small flow. In addition, in the practical situation, because the sizes of the storage tanks in the tank field are different, the difference of the flow rates of the required foam mixed liquid is large, and the existing proportional mixer cannot meet the design requirements.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks, the present invention provides an integrated proportioner.
In order to achieve the purpose, the technical scheme of the invention is as follows: an integrated proportioner comprises a proportioner body, a nozzle, a connecting pipe and a balance valve assembly;
the proportioning mixer body is in a three-way pipe shape and comprises an axial port A, an axial port B and a port C on the side wall, wherein the port A is a fire-fighting pressure water inlet, and the port B is a mixed liquid outlet; the nozzle comprises a pipe body and a self-adaptive water blocking device arranged in the pipe body; the pipe body is assembled in a passage from the port A to the port B of the proportioner body; a circumferential groove is formed in the inner wall of the proportioner body corresponding to the position of the port C; a plurality of liquid inlet holes are circumferentially formed in the pipe body and correspond to the positions of the opening C and the circumferential groove; the self-adaptive water blocking device is positioned on the side of the port B;
the balance valve assembly comprises a valve body, a fire pressure water pressure pipe, a foam liquid pressure pipe, a clamping plate, a diaphragm, a valve shaft and a cylinder body, wherein the valve body is in a three-way pipe shape and comprises a D port and an E port in the axial direction and an F port in the side wall, and the F port is a foam liquid inlet; the valve shaft is arranged in the center of an inner cavity of the valve body between the port D and the port E, and the port E is externally connected with a valve cover in a sealing mode; an annular step surface is arranged on the side wall of the inner cavity of the valve body close to the E port, a shaft shoulder matched with the annular step surface is circumferentially arranged at the upper end of the cylinder body, and the lower end surface of the cylinder body is fixedly connected with the upper end surface of the valve shaft; the center of the diaphragm is clamped in the center of the clamping plate, the clamping plate is arranged at the upper part of the cylinder body, and the peripheral edge of the diaphragm is pressed and fixed by the valve cover and the end surface of the E port; the inner wall of the inner cavity of the valve body close to the port D is a reducing liquid passing hole, and a shaft collar for limiting the flow area of the liquid passing hole is arranged at the lower end port of the valve shaft;
the two ends of the connecting pipe are respectively connected with the port C of the proportional mixer body and the port D of the valve body, and a pore plate is arranged at the joint of the connecting pipe and the port C of the proportional mixer body; one end of the fire pressure water pressure taking pipe is communicated with the port A of the proportioner body through the side wall of the port A of the proportioner body, and the other end of the fire pressure water pressure taking pipe is communicated with the center of the top of the valve cover; one end of the foam liquid pressure taking pipe is communicated with the connecting pipe, and the other end of the foam liquid pressure taking pipe is communicated with the opening E of the valve body through the side wall of the opening E of the valve body.
Preferably, the connecting pipe is loudspeaker form, and connecting pipe aperture department is connected with the C mouth of proportional mixer body, and connecting pipe major orifice department is connected with the D mouth of valve body.
Preferably, the self-adaptive water blocking device comprises a fixed frame, a central shaft, a blocking plate, a spring and an adjusting nut, wherein the inner wall of the pipe body, which is positioned on the side of the opening B, is provided with a conical surface with a large outer part and a small inner part; one end of the central shaft is fixedly connected with the center of the fixing frame, a blocking plate and a spring are sequentially sleeved on the central shaft from the fixing frame, the outer wall of the other end of the central shaft is a threaded section, an adjusting nut for pressing the spring is screwed on the threaded section, and the blocking plate is in sealing sliding connection with the central shaft; the circumferential end of the fixing frame is fixedly connected with the inner wall of the pipe body, the circumferential profile of the blocking plate is matched with the conical surface of the inner wall of the pipe body, and the blocking plate is press-fitted on the conical surface of the inner wall of the tubular fixing piece by a spring.
Preferably, the membrane is high-strength cloth-sandwiched rubber.
Preferably, a frustum-shaped collar having a smaller lower end and a larger upper end is provided on the valve shaft located above the opening F of the valve body, and the frustum-shaped collar functions to increase a force receiving area during pressure adjustment.
The working principle of this application does: fire-fighting pressure water enters the proportioner body through the port A and is communicated with a cavity between the valve cover and the diaphragm through a fire-fighting pressure water pressure taking pipe; the foam liquid enters the balance valve assembly through the opening F and is communicated with the inner cavity of the valve body through the foam liquid pressure taking pipe.
When the pressure of the fire fighting pressure water passing through the proportioner body is greater than the pressure of the foam liquid, the fire fighting pressure water pushes the diaphragm to move downwards, so that the valve shaft is pushed to move downwards, the overflowing area of the foam liquid at the liquid passing hole is increased, and the amount of the foam liquid entering the proportioner body is increased;
when the pressure of fire water passing through the proportioner body is smaller than the pressure of foam liquid, the foam liquid pushes the valve shaft to move upwards, the overflowing area of the foam liquid at the liquid passing hole is reduced, and the amount of the foam liquid entering the proportioner body is reduced.
When the fire water flow of flowing through the proportioner body is small, the impact force of water is small, the spring resistance of the self-adaptive water blocking device cannot be overcome, the spring pushes the blocking plate against the outlet of the nozzle of the proportioner body, the sectional area of the outlet of the nozzle is reduced, the front-back pressure difference of water resistance and the proportioner body is increased, the foam liquid amount entering the proportioner is improved, and the stable mixing ratio under the low flow is maintained. Along with the continuous increase of fire water flow, rivers impact force increases gradually, overcomes spring resistance and promotes the closure plate, increases the export sectional area of nozzle, and self-adaptation device that blocks water is more and more littleer to differential pressure influence around the proportional mixer body, and then can not influence the foam liquid measure that gets into the proportional mixer body, makes its mixing ratio can not change. Can also change the mixing ratio of orifice plate size and then adjust this application integral type proportional mixer through the adjustment. The compression amount of the spring can be changed by adjusting the adjusting nut, and then the flow range of the integrated proportional mixer is adjusted.
The invention has the beneficial effects that: it is rational in infrastructure, can be according to fire control pressure discharge size and the foam liquid measure that pressure size automatic balance adjusted entering ratio blender is originally internal, make its mixing ratio reach the standard requirement. The application range of the integrated proportional mixer is wide, and the flow regulation range is large.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
Reference numerals: 1. the fire fighting pressure water pipeline comprises a connecting pipe, 2, a valve shaft, 3, a valve body, 4, a foam liquid pressure taking pipe, 5, a cylinder body, 6, a valve cover, 7, a clamping plate, 8, a diaphragm, 9, a fire fighting pressure water pressure taking pipe, 10, an orifice plate, 11, a proportional mixer body, 12, a nozzle, 13, a fixing frame, 14, a central shaft, 15, a blocking plate, 16, a spring, 17, an adjusting nut, 18, a frustum-shaped shaft ring and 19, and a liquid passing hole.
Detailed Description
The present invention will be further described with reference to the following specific examples.
An integral proportioner as shown in figure 1 and figure 2 comprising proportioner body 11, nozzle 12, connecting tube 1 and balance valve assembly;
the proportioner body 11 is in a three-way pipe shape and comprises an axial port A, a port B and a port C on the side wall, wherein the port A is a fire-fighting pressure water inlet, and the port B is a mixed liquid outlet; the nozzle 12 comprises a pipe body and a self-adaptive water blocking device arranged in the pipe body; the pipe body is assembled in a passage from the port A to the port B of the proportioner body 11; a circumferential groove is formed in the inner wall of the proportional mixer body 11 corresponding to the position of the port C; a plurality of liquid inlet holes are circumferentially formed in the pipe body and correspond to the positions of the opening C and the circumferential groove; the self-adaptive water blocking device is positioned on the side of the port B;
the balance valve assembly comprises a valve body 3, a fire pressure water pressure pipe 9, a foam liquid pressure pipe 4, a clamping plate 7, a diaphragm 8, a valve shaft 2 and a cylinder body 5, wherein the valve body 3 is in a three-way pipe shape and comprises a D port and an E port in the axial direction and an F port in the side wall, and the F port is a foam liquid inlet; the valve shaft 2 is arranged in the center of an inner cavity of the valve body 3 between the port D and the port E, and the port E is externally connected with a valve cover 6 in a sealing mode; an annular step surface is arranged on the side wall of the inner cavity of the valve body 3 close to the E port, a shaft shoulder matched with the annular step surface is circumferentially arranged at the upper end of the cylinder body 5, and the lower end surface of the cylinder body 5 is fixedly connected with the upper end surface of the valve shaft 2; the center of the diaphragm 8 is clamped in the center of the clamping plate 7, the clamping plate 7 is arranged at the upper part of the cylinder body 5, and the peripheral edge of the diaphragm 8 is pressed and fixed by the valve cover 6 and the end surface of the E port; the inner wall of the inner cavity of the valve body 3 close to the port D is provided with a reducing liquid passing hole 19, and the lower end port of the valve shaft 2 is provided with a shaft collar for limiting the flow area of the liquid passing hole;
the two ends of the connecting pipe 1 are respectively connected with the port C of the proportional mixer body 11 and the port D of the valve body 3, and a pore plate 10 is arranged at the joint of the connecting pipe 1 and the port C of the proportional mixer body 11; one end of the fire-fighting pressure water pressure sampling pipe 9 is communicated with the port 11A of the proportional mixer body through the side wall of the port 11A of the proportional mixer body, and the other end of the fire-fighting pressure water pressure sampling pipe is communicated with the center of the top of the valve cover 6; one end of the foam liquid pressure sampling pipe 4 is communicated with the connecting pipe 1, and the other end of the foam liquid pressure sampling pipe is communicated with the opening E of the valve body through the side wall of the opening E of the valve body 3.
Connecting pipe 1 is loudspeaker form, and 1 xiao kou of connecting pipe is connected with the C mouth of proportional mixer body 11, and 1 macrostoma department of connecting pipe is connected with the D mouth of valve body 3.
The self-adaptive water blocking device comprises a fixed frame 13, a central shaft 14, a blocking plate 15, a spring 16 and an adjusting nut 17, wherein the inner wall of the pipe body, which is positioned on the side of the opening B, is provided with a conical surface with a large outer part and a small inner part; one end of the central shaft 14 is fixedly connected with the center of the fixed frame 13, a blocking plate 15 and a spring 16 are sequentially sleeved on the central shaft 14 from the fixed frame 13, the outer wall of the other end of the central shaft 14 is a threaded section, an adjusting nut 17 for pressing the spring 16 is screwed on the threaded section, and the blocking plate 15 is in sealing sliding connection with the central shaft 14; the circumferential end of the fixing frame 13 is fixedly connected with the inner wall of the pipe body, the circumferential outline of the blocking plate 15 is matched with the conical surface of the inner wall of the pipe body, and the blocking plate 15 is pressed on the conical surface part of the inner wall of the tubular fixing piece by a spring 16.
In order to realize larger stress area and more sensitive adjustment during pressure adjustment, a frustum-shaped collar 18 with a smaller lower part and a larger upper part is arranged on the valve shaft 2 above the opening F of the valve body 3.
As a preferred scheme, the diaphragm 8 is made of high-strength cloth-sandwiched rubber with good air tightness and aging performance. The integral proportioner is integrally made of corrosion-resistant materials, so that the service life and the use safety can be effectively prolonged. During actual assembly, for installation convenience, the inner wall of the port A of the proportioner body 11 is provided with a step, and the end part of the nozzle body 12 at the end is provided with an outward flange matched with the step.
The working mode and the working principle of the embodiment are as follows: fire-fighting pressure water enters the proportioner body 11 through the port A and is communicated with a cavity between the valve cover 6 and the diaphragm 8 through the fire-fighting pressure water pressure taking pipe 9; the foam liquid enters the balance valve assembly through the opening F and is communicated with the inner cavity of the valve body 3 through the foam liquid pressure taking pipe 4.
When the pressure of the fire fighting pressure water passing through the proportioner body 11 is greater than the pressure of the foam liquid, the fire fighting pressure water pushes the diaphragm 8 to move downwards, and further pushes the valve shaft 2 to move downwards, so that the overflowing area of the foam liquid at the liquid passing hole is increased, and the amount of the foam liquid entering the proportioner body 11 is increased;
when the pressure of fire water passing through the proportioner body 11 is smaller than the pressure of foam liquid, the foam liquid pushes the valve shaft 2 to move upwards, the overflowing area of the foam liquid at the liquid passing hole is reduced, and the amount of the foam liquid entering the proportioner body 11 is reduced.
When the flow of the fire water flowing through the proportioner body 11 is small, the impact force of the water is small, the resistance of a spring 16 of the self-adaptive water blocking device cannot be overcome, the spring 16 pushes a blocking plate 15 against the outlet of a nozzle 12 of the proportioner body 11, the sectional area of the outlet of the nozzle 12 is reduced, the water resistance and the front-back pressure difference of the proportioner body 11 are increased, so that the foam liquid amount entering the proportioner is increased, and the stable mixing ratio under low flow is maintained. Along with the continuous increase of fire water flow, rivers impact force increases gradually, overcomes spring 16 resistance and promotes closure plate 15, increases the outlet sectional area of nozzle 12, and self-adaptation water blocking device is less and less to the differential pressure influence around the proportional mixer body 11, and then can not influence the foam liquid volume that gets into proportional mixer body 11, makes its mixing ratio can not change. The mixing ratio of the integral proportioning mixer of the application can be adjusted by adjusting the size of the replacing orifice plate 10. The flow range of the integrated proportioner of the application can also be adjusted by adjusting the adjusting nut 17 to change the compression amount of the spring 16.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (5)
1. An integral type proportioner which characterized in that: comprises a proportioner body, a nozzle, a connecting pipe and a balance valve component;
the proportioning mixer body is in a three-way pipe shape and comprises an axial port A, an axial port B and a port C on the side wall, wherein the port A is a fire-fighting pressure water inlet, and the port B is a mixed liquid outlet; the nozzle comprises a pipe body and a self-adaptive water blocking device arranged in the pipe body; the pipe body is assembled in a passage from the port A to the port B of the proportioner body; a circumferential groove is formed in the inner wall of the proportioner body corresponding to the position of the port C; a plurality of liquid inlet holes are circumferentially formed in the pipe body and correspond to the positions of the opening C and the circumferential groove; the self-adaptive water blocking device is positioned on the side of the port B;
the balance valve assembly comprises a valve body, a fire pressure water pressure pipe, a foam liquid pressure pipe, a clamping plate, a diaphragm, a valve shaft and a cylinder body, wherein the valve body is in a three-way pipe shape and comprises a D port and an E port in the axial direction and an F port in the side wall, and the F port is a foam liquid inlet; the valve shaft is arranged in the center of an inner cavity of the valve body between the port D and the port E, and the port E is externally connected with a valve cover in a sealing mode; an annular step surface is arranged on the side wall of the inner cavity of the valve body close to the E port, a shaft shoulder matched with the annular step surface is circumferentially arranged at the upper end of the cylinder body, and the lower end surface of the cylinder body is fixedly connected with the upper end surface of the valve shaft; the center of the diaphragm is clamped in the center of the clamping plate, the clamping plate is arranged at the upper part of the cylinder body, and the peripheral edge of the diaphragm is pressed and fixed by the valve cover and the end surface of the E port; the inner wall of the inner cavity of the valve body close to the port D is a reducing liquid passing hole, and a shaft collar for limiting the flow area of the liquid passing hole is arranged at the lower end port of the valve shaft;
the two ends of the connecting pipe are respectively connected with the port C of the proportional mixer body and the port D of the valve body, and a pore plate is arranged at the joint of the connecting pipe and the port C of the proportional mixer body; one end of the fire pressure water pressure taking pipe is communicated with the port A of the proportioner body through the side wall of the port A of the proportioner body, and the other end of the fire pressure water pressure taking pipe is communicated with the center of the top of the valve cover; one end of the foam liquid pressure taking pipe is communicated with the connecting pipe, and the other end of the foam liquid pressure taking pipe is communicated with the opening E of the valve body through the side wall of the opening E of the valve body.
2. The integrated proportioner of claim 1 wherein: the connecting pipe is trumpet-shaped, and connecting pipe aperture department is connected with the C mouth of proportional mixer body, and connecting pipe aperture department is connected with the D mouth of valve body.
3. The integrated proportioner of claim 1 or 2 wherein: the self-adaptive water blocking device comprises a fixed frame, a central shaft, a blocking plate, a spring and an adjusting nut, wherein the inner wall of the pipe body, which is positioned on the side of the opening B, is provided with a conical surface with a large outer part and a small inner part; one end of the central shaft is fixedly connected with the center of the fixing frame, a blocking plate and a spring are sequentially sleeved on the central shaft from the fixing frame, the outer wall of the other end of the central shaft is a threaded section, an adjusting nut for pressing the spring is screwed on the threaded section, and the blocking plate is in sealing sliding connection with the central shaft; the circumferential end of the fixing frame is fixedly connected with the inner wall of the pipe body, the circumferential profile of the blocking plate is matched with the conical surface of the inner wall of the pipe body, and the blocking plate is press-fitted on the conical surface of the inner wall of the tubular fixing piece by a spring.
4. The integrated proportioner of claim 3 wherein: the membrane is made of cloth-sandwiched rubber.
5. The integrated proportioner of claim 1 wherein: the valve shaft above the F opening of the valve body is provided with a frustum-shaped collar with a small lower part and a large upper part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010426481.8A CN111450451A (en) | 2020-05-19 | 2020-05-19 | Integrated proportional mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010426481.8A CN111450451A (en) | 2020-05-19 | 2020-05-19 | Integrated proportional mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111450451A true CN111450451A (en) | 2020-07-28 |
Family
ID=71672398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010426481.8A Pending CN111450451A (en) | 2020-05-19 | 2020-05-19 | Integrated proportional mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111450451A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146339A (en) * | 2021-12-09 | 2022-03-08 | 江西荣和特种消防设备制造有限公司 | Balanced type proportional mixing device |
| CN115887979A (en) * | 2022-12-20 | 2023-04-04 | 广州瑞港消防设备有限公司 | Large-traffic intelligent regulation foam fire extinguishing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496545Y (en) * | 2001-08-09 | 2002-06-26 | 浙江万安达消防设备有限公司 | Proportional mixer |
| CN201551760U (en) * | 2009-12-16 | 2010-08-18 | 西安新竹防灾救生设备有限公司 | Wet balanced proportional mixer |
| CN203886063U (en) * | 2014-06-04 | 2014-10-22 | 上海金盾消防安全科技有限公司 | Dynamic-balanced pressure type proportioning mixer |
| CN206381514U (en) * | 2017-01-17 | 2017-08-08 | 萃联（中国）消防设备制造有限公司 | Fire-fighting foams proportioner |
| CN209762252U (en) * | 2019-03-25 | 2019-12-10 | 东台市东方船舶装配有限公司 | Foam proportional mixing valve |
| CN212327249U (en) * | 2020-05-19 | 2021-01-12 | 新乡市金升消防科技有限公司 | Integrated proportional mixer |
-
2020
- 2020-05-19 CN CN202010426481.8A patent/CN111450451A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496545Y (en) * | 2001-08-09 | 2002-06-26 | 浙江万安达消防设备有限公司 | Proportional mixer |
| CN201551760U (en) * | 2009-12-16 | 2010-08-18 | 西安新竹防灾救生设备有限公司 | Wet balanced proportional mixer |
| CN203886063U (en) * | 2014-06-04 | 2014-10-22 | 上海金盾消防安全科技有限公司 | Dynamic-balanced pressure type proportioning mixer |
| CN206381514U (en) * | 2017-01-17 | 2017-08-08 | 萃联（中国）消防设备制造有限公司 | Fire-fighting foams proportioner |
| CN209762252U (en) * | 2019-03-25 | 2019-12-10 | 东台市东方船舶装配有限公司 | Foam proportional mixing valve |
| CN212327249U (en) * | 2020-05-19 | 2021-01-12 | 新乡市金升消防科技有限公司 | Integrated proportional mixer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146339A (en) * | 2021-12-09 | 2022-03-08 | 江西荣和特种消防设备制造有限公司 | Balanced type proportional mixing device |
| 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 |
| CN115887979A (en) * | 2022-12-20 | 2023-04-04 | 广州瑞港消防设备有限公司 | Large-traffic intelligent regulation foam fire extinguishing system |
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