TWM602073U - Fluid solution proportional mixer - Google Patents

Abstract

The present model provides a fluid solution proportional mixer, which is opened in a body and includes an inlet flow channel, an outlet flow channel, a solution mixing chamber, a pressurized flow channel and a foam liquid flow channel, the inlet flow channel passes through the The solution mixing chamber is connected to the outlet flow passage, wherein a valve port is formed between the inlet flow passage and the solution mixing chamber, a valve is provided at the valve port, and a small flow restricting hole is formed on the valve. There is also a large flow restriction hole in the inlet flow channel, and the cross-sectional area of the large flow restriction hole is relatively larger than the small flow restriction hole and smaller than the valve port; thereby improving the traditional fluid solution proportioning mixer in the small flow It is difficult to maintain an effective mixing ratio.

Description

Fluid solution ratio mixer

The new model relates to the mixing technology of water and foam stock liquid of a foam type fire extinguishing device, in particular to a fluid solution proportional mixer.

Generally, large buildings or factories often use foam type fire extinguishing devices. The foam type fire extinguishing device mixes a certain proportion of foam stock liquid with water to form a foam aqueous solution and sprays it through a foam nozzle. Since the foam type fire extinguishing device sprays an aqueous foam solution, compared to the water sprayed by a water spray type extinguishing device, the foam in the foam aqueous solution can cover a larger area and has a better effect of blocking air. Therefore, it gradually The trend to replace sprinkler fire extinguishing devices.

It is also known that the foam type fire extinguishing device controls the mixing ratio between the foam stock solution and the water by a fluid solution ratio mixer. Please refer to Figure 1 to illustrate that the fluid solution ratio mixer has an inlet formed inside the body 10a. The water flow passage 11a, an outlet flow passage 12a and a solution mixing chamber 13a. One end of the inlet flow passage 11a is connected to a driver (not shown), and one end of the outlet flow passage 12a is connected to a plurality of foam nozzles (not shown). The water flow channel 11a communicates with the water outlet flow channel 12a through the solution mixing chamber 13a, and the water inlet flow channel 11a is also communicated with a bubble stock tank (not shown) through a pressurized flow channel 14a, and the bubble The raw liquid tank is connected to the solution mixing chamber 13a via a foam raw liquid flow channel 15a, and the raw foam tank is filled with the raw foam liquid.

When the foam nozzle is activated (that is, spraying the foam aqueous solution), the foam aqueous solution in the solution mixing chamber 13a flows to the foam nozzle through the outlet flow passage 12a, causing the pressure drop phenomenon in the solution mixing chamber 13a to occur, resulting in the inlet flow passage 11a, There is a pressure difference between the soaking stock solution tank and the solution mixing chamber 13b, so that the water in the water inlet channel 11a flows into the solution mixing chamber 13a, and the soaking stock solution tank The liquid flows into the solution mixing chamber 13a through the foam liquid flow channel 15a, so that the foam liquid and water are mixed into the foam aqueous solution in the solution mixing chamber 13a, and flow to the foam nozzle through the water outlet flow channel 12a.

However, when only one foam nozzle is activated, the foam solution flowing to the foam nozzle in the solution mixing chamber 13a is relatively small, so that the pressure drop in the solution mixing chamber 13a is not large, resulting in the foam stock tank 60 and the solution mixing chamber. The pressure difference between 13b is relatively small, so that the flow rate of the foam stock in the foam stock tank into the solution mixing chamber 13a decreases, resulting in a decrease in the proportion of foam stock in the foam aqueous solution in the solution mixing chamber 13a, thereby affecting the foam Therefore, the fire extinguishing effect of the type fire extinguishing device needs to be improved.

In view of this, the purpose of the present invention is to improve the problem that the traditional fluid solution proportioning mixer is difficult to maintain an effective mixing ratio when the flow rate is small, and to provide a fluid solution proportioning mixer, which is opened in a vessel including: One end of the water flow channel is connected with a driver; one end of the water outlet flow channel is connected with a plurality of foam nozzles; a solution mixing chamber is located between the water inlet flow channel and the water outlet flow channel, and the water inlet flow channel passes through the solution mixing chamber It is connected to the outlet flow channel; a pressurized flow channel, the two ends of which respectively connect the inlet flow channel and a foam stock solution tank; a foam stock solution flow channel, the two ends of which respectively connect the foam stock solution tank and the solution A mixing chamber; wherein a valve port is formed between the water inlet channel and the solution mixing chamber, a valve for controlling the opening and closing of the valve port is arranged on the elastic pivot of the solution mixing chamber, and a small flow restricting hole is formed on the valve , The inlet flow channel is also provided with a large flow restriction hole located between the pressurized flow channel and the valve port, the cross-sectional area of the large flow restriction hole is relatively larger than the small flow restriction hole, and relatively smaller The valve port.

In a further implementation, an opening connected to the solution mixing chamber is formed on one side of the body, and a side cover is assembled at the opening, and the side cover extends to form an ear seat implanted in the solution mixing chamber, and the valve is elastic It is pivoted on the ear seat to control the opening and closing of the valve port.

In a further implementation, the valve is elastically pivoted via an elastic element Set on the ear seat.

In a further implementation, the elastic element is a torsion spring.

In a further implementation, a first check valve is provided between the foam stock solution flow channel and the foam stock solution tank.

In a further implementation, the small flow restriction hole group is provided with a second check valve.

In a further implementation, an alarm flow restriction hole is formed on the body on one side of the valve port, one end of the alarm flow restriction hole is connected to the solution mixing chamber, and the other end of the alarm flow restriction hole is connected to an alarm.

In a further implementation, the pressurized flow channel communicates with the foam stock tank via a pressurizing tube, and the pressurized tube is connected to the top of the foam stock tank.

In a further implementation, the foam stock solution flow channel is connected to the foam stock solution tank via a foam stock solution conduit, and the foam stock solution conduit is connected to the bottom of the foam stock solution tank.

According to the above-mentioned technical means, the efficiency of the present invention lies in: controlling the opening and closing of the valve by the pressure difference between the two sides of the valve. When the valve is closed, a small amount of water can flow into the solution mixing chamber through the small flow restriction hole on the valve. When the valve is opened, a large amount of water can flow into the solution mixing chamber through the valve port, and the large flow restrictor is used to limit the maximum value of the water flowing into the solution mixing chamber, thereby maintaining the foam stock and water in the foam aqueous solution. The mixing ratio between.

In addition, the relevant technical details on which the present invention can be implemented will be described in the subsequent implementation modes and drawings.

10a, 10b: body

11a, 11b: Inlet runner

12a, 12b: Outlet flow channel

13a, 13b: solution mixing chamber

14a, 14b: pressurized runner

15a, 15b: Foam liquid flow channel

16: valve port

17: Alarm restrictor

18: opening

19: Large flow restrictor

20: side cover

21: Ear seat

22: Valve

23: Small flow restrictor

24: elastic element

31: Inlet pipe

32: Outlet pipe

33: Pressure tube

34: Foam stock solution catheter

41: The first check valve

42: The second check valve

50: foam nozzle

60: Soaking stock solution tank

70: Siren

Figure 1 is a cross-sectional view of a conventional fluid solution proportioning mixer.

Figure 2 is a cross-sectional view of the new fluid solution proportioning mixer.

Figure 3 is a schematic diagram of the new type of fluid solution proportioning mixer arranged in a foam type fire extinguishing device.

Figure 4 shows the flow of water into the solution mixing chamber through the small flow restrictor when the valve is closed Schematic.

Figures 5 and 6 are schematic diagrams of water flowing into the solution mixing chamber through the valve port when the valve is opened.

First of all, please refer to FIGS. 2 and 3 together to disclose the aspect of a preferred embodiment of the present invention, and explain that the fluid solution proportioning mixer provided by the present invention is opened in a vessel 10b and includes: an inlet flow channel 11b. A water outlet flow channel 12b, a solution mixing chamber 13b, a pressurized flow channel 14b and a foam liquid flow channel 15b, wherein:

The water inlet channel 11b is connected to a driver (not shown) via a water inlet pipe 31, and water flows into the water inlet channel 11b from the water inlet pipe 31 through the drive of the driver. The driver may be a liquid pump in implementation; The channel 12b is connected to a plurality of foam nozzles 50 via an outlet pipe 32, the solution mixing chamber 13b is located between the inlet flow channel 11b and the outlet flow channel 12b, and the inlet flow channel 11b is connected to the solution mixing chamber 13b via the solution mixing chamber 13b. The water outlet channel 12b is connected, and the water flows into the solution mixing chamber 13b through the water inlet channel 11b to be mixed with the foam stock solution to form a foam aqueous solution, and flows to the foam nozzle 50 via the water outlet channel 12b; one end of the pressurized channel 14b is connected The other end of the water inlet channel 11b is communicated with a foam stock solution tank 60 filled with foam stock solution via a pressure pipe 33, and the pressure pipe 33 is connected to the top of the foam stock solution tank 60 in practice. One end of the foam stock fluid channel 15b is connected to the solution mixing chamber 13b, and the other end is communicated with the foam stock tank 60 via a foam stock pipe 34, which is connected to the foam stock solution in practice. A first check valve 41 is provided at the bottom of the tank 60, and between the foam stock solution flow channel 15b and the foam stock solution tank 60, so that the foam stock solution in the foam stock solution tank 60 can pass through the foam stock solution flow channel 15b When flowing into the solution mixing chamber 13b, the foam aqueous solution in the solution mixing chamber 13b cannot flow into the foam stock solution tank 60 through the foam stock solution flow channel 15b. Thereby, the water in the water inlet channel 11b flows into the foaming stock solution tank 60 through the pressurized channel 14b, thereby pushing the foaming stock solution in the foaming stock solution tank 60 into the solution mixing chamber 13b via the foaming stock solution channel 15b, The foam stock solution and water are mixed into a foam aqueous solution in the solution mixing chamber 13b.

A valve port 16 is formed between the water inlet channel 11b and the solution mixing chamber 13b. The water in the water inlet channel 11b flows into the solution mixing chamber 13b through the valve port 16, and a resilient pivot is arranged in the solution mixing chamber 13b. The valve 22 that controls the opening and closing of the valve port 16 is used to control the water in the water inlet channel 11b to enter the solution mixing chamber 13b; the valve 22 is formed with a small flow restricting hole 23, the small flow The cross-sectional area of the restrictor hole 23 is relatively smaller than the cross-sectional area of the valve port 16, that is to say, the flow of the water in the water inlet channel 11b into the solution mixing chamber 13b through the small flow restrictor hole 23 is smaller than the inlet The flow rate when the water in the water flow channel 11b flows into the solution mixing chamber 13b through the valve port 16; the small flow restriction hole 23 is provided with a second check valve 42 so that the water in the water inlet channel 11b can pass through The small flow restriction hole 23 flows into the solution mixing chamber 13 b, and the foam aqueous solution in the solution mixing chamber 13 b cannot flow into the water inlet channel 11 b through the small flow restriction hole 23.

Furthermore, an opening 18 connected to the solution mixing chamber 13b is formed on one side of the body 10b, and a side cover 20 is arranged at the opening 18 with screws, and the side cover 20 is extended to form an implantation in the solution mixing chamber 13b The valve 22 is elastically pivoted on the ear seat 21 through an elastic element 24, and the valve 22 is swung along an arc path by the spring pressure of the elastic element 24, Further covering or away from the valve port 16, the elastic element 24 may be a torsion spring in implementation. In addition, when a blockage occurs in the receptacle 10b, the side cover 20 can be opened, and the blockage can be eliminated through the opening 18 without disassembling the entire receptacle 10b for repair.

The inlet flow passage 11b is also provided with a large flow restriction hole 19, the large flow restriction hole 19 is located between the pressurized flow passage 14b and the valve port 16, and water flows in through the large flow restriction hole 19 The solution mixing chamber 13b. Furthermore, the cross-sectional area of the large-flow restriction hole 19 is relatively larger than the small-flow restriction hole 23 and smaller than the valve port 16, thereby controlling the maximum flow rate of water when flowing into the solution mixing chamber 13b. Value, the mixing ratio between the original foam solution and the water in the foam aqueous solution in the solution mixing chamber 13b remains unchanged.

An alarm restricting hole is formed on the body 10b on the side of the valve port 16 17. One end of the alarm restrictor hole 17 is connected to the solution mixing chamber 13b and is located within the coverage of the valve 22, so that the valve 22 can control the opening and closing of the alarm restrictor hole 17, in other words, when When the valve 22 is far away from the valve port 16, the alarm restrictor hole 17 can be opened at the same time, so that the foamed water solution in the solution mixing chamber 13b flows into the alarm restrictor hole 17, on the contrary, when the valve 22 covers the valve port 16 At the same time, the alarm flow restriction hole 17 can be closed at the same time, so that the foamy water solution in the solution mixing chamber 13b cannot flow into the alarm flow restriction hole 17. Furthermore, the other end of the alarm restricting orifice 17 is connected to an alarm 70, and when the valve 22 is far away from the valve port 16, the foamed water solution in the solution mixing chamber 13b flows into the alarm through the alarm restricting orifice 17 At 70 o'clock, the alarm 70 will sound an alarm, so that personnel can know the occurrence of a fire through the alarm issued by the alarm 70.

Please refer to Figure 2 to illustrate that when all the foam nozzles 50 are not activated, the pressures of the water inlet channel 11b, the foam stock tank 60, and the solution mixing chamber 13b are equal, that is, the fluid (including water) in the above three , Foam stock solution, foam aqueous solution) is in a static state.

Please refer to FIG. 4, which illustrates that when a foam nozzle 50 is activated, the foam aqueous solution in the solution mixing chamber 13b flows to the foam nozzle 50 through the water outlet channel 11b, causing a pressure drop phenomenon in the solution mixing chamber 13b, because there is only one foam nozzle 50 When activated, only a small amount of foam aqueous solution flows to the foam nozzle 50 through the outlet channel 11b, so that the pressure in the solution mixing chamber 13b is only slightly reduced, so that the pressure in the solution mixing chamber 13b plus the spring pressure of the elastic element 24 is relatively larger than the inlet flow The pressure in the passage 11b causes the valve 22 to maintain the state covering the valve port 16, making the valve port 16 closed, so that the water in the inlet passage 11b can only flow into the solution mixing chamber 13b through the small flow restrictor hole 17 In other words, only a small amount of water flows into the solution mixing chamber 13b, so that the mixing ratio of the foam stock solution and the water in the foam aqueous solution in the solution mixing chamber 13b remains unchanged.

Please refer to FIG. 5 to illustrate that when multiple foam nozzles 50 are activated, since multiple foam nozzles 50 are activated at the same time, a large amount of foam aqueous solution flows to the foam nozzle 50 through the water outlet channel 11b, which greatly reduces the pressure in the solution mixing chamber 13b. make The pressure in the solution mixing chamber 13b plus the spring pressure of the elastic element 24 is relatively smaller than the pressure in the inlet flow passage 11b, causing the valve 22 to be pushed by the water in the inlet flow passage 11b, and the valve port 16 is opened to make the inlet flow passage 11b The water flows into the solution mixing chamber 13b through the valve port 16, and the greater the pressure difference between the solution mixing chamber 13b and the inlet flow passage 11b, the greater the opening of the valve 22, so that the water in the inlet flow passage 11b flows into the solution to mix The flow rate in the chamber 13b is also greater, and because the pressure difference between the solution mixing chamber 13b and the foam stock tank 60 is greater, the flow rate of the foam stock solution in the foam stock tank 60 when flowing into the solution mixing chamber 13b follows. Large, so that the mixing ratio between the foam stock solution and the water in the foam aqueous solution in the solution mixing chamber 13b remains unchanged.

Please refer to FIG. 6 to illustrate that when the valve 22 is opened to the maximum extent, since water flows into the solution mixing chamber 13b through the large flow restriction hole 19, the large flow restriction hole 19 can be used to restrict water inflow The flow rate in the solution mixing chamber 13b prevents too much water from flowing into the solution mixing chamber 13b, thereby maintaining the mixing ratio between the foam stock solution and the water in the foam aqueous solution in the solution mixing chamber 13b.

The above embodiments only express the preferred embodiments of the present invention, but they should not be interpreted as limiting the scope of the present invention. Therefore, this new model should be subject to the content of the claims defined in the scope of the patent application.

10b: Body

11b: Inlet runner

12b: Outlet flow channel

13b: Solution mixing chamber

14b: Pressurized runner

15b: Foam stock solution flow path

16: valve port

17: Alarm restrictor

18: opening

19: Large flow restrictor

20: side cover

21: Ear seat

22: Valve

23: Small flow restrictor

24: elastic element

31: Inlet pipe

32: Outlet pipe

33: Pressure tube

34: Foam stock solution catheter

41: The first check valve

42: The second check valve

Claims (9)

A fluid solution proportioning mixer is set in a body and includes: A water inlet channel, one end of which is connected with a driver; One water outlet, one end of which is connected with multiple foam nozzles; A solution mixing chamber located between the water inlet channel and the water outlet channel, the water inlet channel being communicated with the water outlet channel via the solution mixing chamber; A pressurized flow channel, both ends of which are respectively connected with the water inlet flow channel and a foaming stock solution tank; A foam stock solution flow channel, both ends of which are respectively connected with the foam stock solution tank and the solution mixing chamber; Wherein, a valve port is formed between the water inlet channel and the solution mixing chamber, a valve for controlling the opening and closing of the valve port is arranged on the elastic pivot of the solution mixing chamber, and a small flow restricting hole is formed on the valve. The water flow channel is also provided with a large flow restriction hole located between the pressurized flow channel and the valve port. The cross-sectional area of the large flow restriction hole is relatively larger than the small flow restriction hole and relatively smaller than the valve port . The fluid solution proportioning mixer according to claim 1, wherein one side of the body is formed with an opening communicating with the solution mixing chamber, and a side cover is assembled at the opening, and the side cover is extended to form an implanted solution mixing chamber. In the ear seat in the cabin, the valve is elastically pivoted on the ear seat to control the opening and closing of the valve port. The fluid solution proportional mixer according to claim 1 or 2, wherein the valve is elastically pivoted on the ear seat via an elastic element. The fluid solution proportional mixer according to claim 3, wherein the elastic element is a torsion spring. The fluid solution proportioning mixer according to claim 1, wherein a first check valve is provided between the foam stock solution channel and the foam stock solution tank. The fluid solution proportioning mixer according to claim 1, wherein the small flow restricting hole group is provided with a second check valve. The fluid solution proportional mixer according to claim 1, wherein one side of the valve port is formed with an alarm flow restriction hole, one end of the alarm flow restriction hole is connected to the solution mixing chamber, and the other end of the alarm flow restriction hole is connected to an alarm Device. The fluid solution proportioning mixer according to claim 1, wherein the pressurized flow channel is connected to the foam stock tank via a pressurizing tube, and the pressurized pipe is connected to the top of the foam stock tank. The fluid solution proportioning mixer according to claim 1, wherein the foam stock fluid channel is connected to the foam stock solution tank via a foam stock solution conduit, and the foam stock solution conduit is connected to the bottom of the foam stock solution tank.

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