阅读说明：本技术 自增压式压缩气体泡沫产生系统 (Self-pressurizing compressed gas foam generation system ) 是由 郎需庆 姜春明 谈龙妹 牟小冬 吴京峰 尚祖政 周日峰 陶彬 刘全桢 于 2019-03-22 设计创作，主要内容包括：本发明公开了一种自增压式压缩气体泡沫产生系统,所述泡沫产生系统包括具有气体入口、液体入口及泡沫喷射口的气液混合装置、与气体入口连接的储气装置以及与液体入口连接的泡沫混合液装置；其中,储气装置包括容器及位于容器内将容器内部空间分隔为储气腔和储水腔的分隔部件,容器设置有与储气腔连通的进气口和排气口及与储水腔连通的进水口和排水口,进气口、排气口、进水口和出水口分别设置有阀门,排气口与气体入口连接,从进水口进入的水能够推动分隔部件对储气腔内的气体加压,被加压的气体从排气口排出至气液混合装置内。本发明提供的泡沫产生系统,不仅节省设备,降低功耗及成本,而且操作简单。另外,该泡沫产生系统可以长时间工作。(The invention discloses a self-pressurization type compressed gas foam generating system, which comprises a gas-liquid mixing device, a gas storage device and a foam mixed liquid device, wherein the gas-liquid mixing device is provided with a gas inlet, a liquid inlet and a foam injection port; the gas storage device comprises a container and a separating component which is positioned in the container and separates the inner space of the container into a gas storage cavity and a water storage cavity, the container is provided with a gas inlet and a gas outlet which are communicated with the gas storage cavity, and a water inlet and a water outlet which are communicated with the water storage cavity, the gas inlet, the gas outlet, the water inlet and the water outlet are respectively provided with a valve, the gas outlet is connected with a gas inlet, water entering from the water inlet can push the separating component to pressurize the gas in the gas storage cavity, and the pressurized gas is discharged into the gas-liquid mixing device from the. The foam generating system provided by the invention not only saves equipment and reduces power consumption and cost, but also is simple to operate. In addition, the foam generating system can operate for a long time.)

1. An auto-supercharging type compressed gas foam generation system is characterized by comprising a gas-liquid mixing device (1) with a gas inlet (11), a liquid inlet (12) and a foam jet orifice (13), a gas storage device (2) connected with the gas inlet (11) and used for injecting gas into the gas-liquid mixing device (1), and a foam mixed liquid device (3) connected with the liquid inlet (12) and used for injecting foam mixed liquid into the gas-liquid mixing device (1);

wherein the gas storage device (2) comprises a container (21) and a partition part (22) which is positioned in the container (21) and divides the internal space of the container (21) into a gas storage cavity (A) and a water storage cavity (B), the container (21) is provided with an air inlet (23) and an air outlet (24) which are communicated with the air storage cavity (A), and a water inlet (25) and a water outlet (26) which are communicated with the water storage cavity (B), the air inlet (23), the air outlet (24), the water inlet (25) and the water outlet (26) are respectively provided with a valve, the exhaust port (24) is connected with the gas inlet (11), water entering from the water inlet (25) can push the partition component (22) to pressurize gas in the gas storage cavity (A), and the pressurized gas is discharged from the exhaust port (24) into the gas-liquid mixing device (1).

2. Foam generating system according to claim 1, wherein said air storage chamber (a) is arranged above said water storage chamber (B) and said air inlet (23) and said air outlet (24) are both arranged on the top wall of said air storage chamber (a), said water inlet (25) is arranged on the side wall of said water storage chamber (B) and said water outlet (26) is arranged on the bottom wall of said water storage chamber (B).

3. The foam generating system according to claim 1, wherein the gas storage device (2) is provided with two or more, and the gas discharge port (24) of each gas storage device (2) is connected to the gas inlet (11) of the gas-liquid mixing device (1).

4. Foam generating system according to claim 3, characterized in that it comprises a water inlet manifold (6), to which water inlet branch pipes are connected the water inlets (25) of each of the gas storage devices (2), which water inlet branch pipes are connected to the water inlet manifold (6).

5. Foam generating system according to claim 3, characterized in that it comprises a main drain pipe (7), to which branch drain pipes are connected to the drain openings (26) of each of the air storage devices (2), said branch drain pipes being connected to the main drain pipe (7).

6. The foam generating system according to claim 1, further comprising a foam concentrate tank (4), the foam mixture means (3) having a water inlet (31) for injecting water, a foam concentrate inlet (32) for injecting foam concentrate, and a foam mixture outlet (33) for connecting with the liquid inlet (12) of the gas-liquid mixing device (1), the foam concentrate tank (4) being connected to the foam concentrate inlet (32).

7. The foam generating system according to claim 6, characterized in that it comprises a water inlet manifold (6), to which manifold (6) a branch line is connected which is connected to a water inlet (31) of the foam mixing means (3) and a branch line which is connected to the water inlet (25) of the water storage means (2).

8. Foam generating system according to claim 1, wherein the foam mixing liquid device (3) is a container for containing the foam mixing liquid.

9. Foam-generating system according to claim 1, characterized in that the container (21) is provided with a pressure sensor (27) for detecting the pressure in the gas storage chamber (a).

10. The foam generating system according to any of the claims 1-9, further comprising a water supply for supplying water to the water inlet (25) of the gas storage device (2), the water supply being a fire water system providing fire water, the water inlet (25) of the gas storage device (2) being connected to a fire hose of the fire water system.

Technical Field

The invention relates to the technical field of fire fighting, in particular to an automatic pressurization type compressed gas foam generating system.

Background

Compressed gas foam fire extinguishing technology has been applied for decades, and the foaming principle is that high-pressure gas and foam mixed liquid are mixed and forcibly mixed in a special mixing cavity to promote the foam mixed liquid to foam so as to form gas with excellent performance.

The pressure of the high-pressure gas and the foam mixed liquid needs to be kept at a certain pressure in the mixing process, and the mixing ratio needs to be fixed. When the flow rate of the foam mixture is increased, the flow rate of the injected gas is also required to be increased correspondingly. Currently, the gas required by such compressed gas foam fire extinguishing systems is mainly provided by air compressors, high-pressure gas cylinders, high-pressure gas pipe networks, blowers and other devices. Therefore, the compressed gas foam generating systems currently marketed are equipped with different types of gas supply equipment.

However, air supply equipment such as air compressors, high-pressure gas cylinders, high-pressure gas pipe networks, blowers and the like are complex and expensive, and have high power and high energy consumption. Therefore, the gas supply problem is one of the main problems preventing the wide application of the compressed gas foam fire extinguishing system in the petrochemical system.

Disclosure of Invention

The invention aims to solve the problems of complex equipment for supplying compressed gas, high price, high power and high energy consumption in the prior art.

In order to achieve the above object, the present invention provides an auto-pressurizing type compressed gas foam generating system, which includes a gas-liquid mixing device having a gas inlet, a liquid inlet, and a foam injection port, a gas storage device connected to the gas inlet to inject gas into the gas-liquid mixing device, and a foam mixture device connected to the liquid inlet to inject foam mixture into the gas-liquid mixing device;

wherein, gas storage device includes the container and is located will in the container inner space separates for the partition member in gas storage chamber and water storage chamber, the container be provided with the air inlet and the gas vent of gas storage chamber intercommunication and with the water inlet and the outlet of water storage chamber intercommunication, the air inlet the gas vent the water inlet with the delivery port is provided with the valve respectively, the gas vent with gas inlet connects, follows the hydroenergy that the water inlet got into can promote the partition member is right the gas pressurization in the gas storage chamber, and the pressurized gas is followed the gas vent discharges to in the gas-liquid mixing device.

Preferably, the gas storage cavity sets up water storage cavity top, just the air inlet with the gas vent all sets up on the roof of gas storage cavity, the water inlet sets up on the lateral wall in water storage cavity, the outlet sets up on the diapire in water storage cavity.

Preferably, the gas storage device is provided with two or more gas outlets, and the gas outlet of each gas storage device is connected to the gas inlet of the gas-liquid mixing device.

Preferably, the foam generating system comprises a water inlet main pipe, the water inlet of each gas storage device is connected with a water inlet branch pipe, and the water inlet branch pipes are connected to the water inlet main pipe.

Preferably, the foam generating system includes a main drain pipe, and the drain port of each of the gas storage devices is connected to a branch drain pipe, which is connected to the main drain pipe.

Preferably, the foam generating system further comprises a foam liquid storage tank, the foam liquid mixing device is provided with a water inlet for injecting water, a foam liquid inlet for injecting foam liquid and a foam liquid mixing outlet connected with the liquid inlet of the gas-liquid mixing device, and the foam liquid storage tank is connected to the foam liquid inlet.

Preferably, the foam generating system comprises a water inlet main pipe, a branch pipe connected with the water inlet main pipe and communicated to a water inlet of the foam mixed liquid device, and a branch pipe communicated with the water inlet of the water storage device.

Preferably, the foam mixed liquid device is a container for containing the foam mixed liquid.

Preferably, a pressure sensor for detecting the pressure in the air storage cavity is arranged on the container.

Preferably, the foam generating system further comprises a water supply device for supplying water to the water inlet of the gas storage device, the water supply device is a fire water system for supplying fire water, and the water inlet of the gas storage device is connected to a fire water pipe of the fire water system.

According to the foam generation system provided by the invention, a mode of injecting water into the gas storage device to improve the gas pressure so as to obtain the compressed gas is adopted, and compared with a mode of obtaining the compressed gas through equipment such as an air compressor, a high-pressure gas bottle, a high-pressure gas pipe network and a blower in the prior art, the foam generation system not only can save equipment, reduce energy consumption and save cost, but also is simple to operate. In addition, the air supply mode can be operated for a long time, and is beneficial to the long-time work of the foam generating system.

Drawings

Fig. 1 is a schematic structural view of an auto-pressurized compressed gas foam generating system according to an embodiment of the present invention.

Description of the reference numerals

1-a gas-liquid mixing device; 11-gas inlet; 12-a liquid inlet; 13-foam ejection ports; 2-gas storage means; 21-a container; 22-a partition member; a-a gas storage cavity; b-a water storage cavity; 23-an air inlet; 24-an exhaust port; 25-a water inlet; 26-a water outlet; 27-a pressure sensor; 3-foam mixed liquid device; 31-a water inlet; 32-foam inlet; 33-foam mixed liquor outlet; 4-foam liquid storage tank; 5-an exhaust manifold; 51-a first exhaust pipe; 52-second exhaust pipe; 6-water inlet main pipe; 61-a first branch; 611-a first water inlet pipe; 612-a second water inlet pipe; 62-a second branch; 7-a main drain pipe; 71-a first drain pipe; 72-a second drain pipe; c1 — first intake valve; d1-first exhaust valve; e1-first inlet valve; f1 — first drain valve; c2 — second intake valve; d2-second exhaust valve; e2-second inlet valve; f2-second drain valve.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The term "inside" and "outside" refer to the inside and the outside of the contour of each member itself.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

The invention provides an auto-supercharging type compressed gas foam generating system, as shown in figure 1, the foam generating system comprises a gas-liquid mixing device 1 with a gas inlet 11, a liquid inlet 12 and a foam jet orifice 13, a gas storage device 2 connected with the gas inlet 11 for injecting gas into the gas-liquid mixing device 1, and a foam mixed liquid device 3 connected with the liquid inlet 12 for injecting foam mixed liquid into the gas-liquid mixing device 1.

Wherein, gas storage device 2 includes container 21 and is located will in the container 21 the interior space separation of container 21 is the partition member 22 of gas storage chamber A and water storage chamber B, container 21 be provided with gas inlet 23 and the gas vent 24 of gas storage chamber A intercommunication and with water inlet 25 and the outlet 26 of water storage chamber B intercommunication, gas inlet 23, gas vent 24, water inlet 25 and delivery port 26 are provided with the valve respectively, gas vent 24 is connected with gas inlet 11 of gas-liquid mixing device 1, and like this, the hydroenergy that gets into from gas storage device 2's water inlet 25 can promote partition member 22 pressurizes the gas in the gas storage chamber A, and the gas that is pressurized is discharged to gas-liquid mixing device 1 in from gas vent 24.

Compared with the mode of acquiring compressed gas by injecting water into the gas storage device 2 to improve the gas pressure, the foam generation system provided by the invention can save equipment, reduce the cost and save energy consumption and is simple to operate in the mode of acquiring compressed gas by using equipment such as an air compressor, a high-pressure gas bottle, a high-pressure gas pipe network, a blower and the like in the prior art. In addition, the air supply mode can be operated for a long time, and is beneficial to the long-time work of the foam generating system.

The technical solution provided by the present invention is further explained in detail below according to the embodiment provided by fig. 1.

In the embodiment shown in fig. 1, the foam generating system includes a gas-liquid mixing device 1, a gas storage device 2, and a foam mixed liquid device 3, wherein a gas outlet 24 of the gas storage device 2 is connected to a gas inlet 11 of the gas-liquid mixing device 1 to inject compressed gas into the gas-liquid mixing device 1, the foam mixed liquid device 3 is connected to a liquid inlet 12 of the gas-liquid mixing device 1 to inject foam mixed liquid into the gas-liquid mixing device 1, and the compressed gas and the foam mixed liquid are mixed in the gas-liquid mixing device 1 to generate foam, and the foam is ejected from a foam ejection port 13 of the gas-liquid mixing device 1.

Wherein, the foam generating system further comprises a foam liquid storage tank 4, the foam mixed liquid device 3 is provided with a water inlet 31 for injecting water, a foam liquid inlet 32 for injecting foam liquid and a foam mixed liquid outlet 33 connected with the liquid inlet 12 of the gas-liquid mixing device 1, and the foam liquid storage tank 4 is connected to the foam liquid inlet 32 to provide foam liquid for the foam mixed liquid device 3. The water injected from the water inlet 31 and the foam concentrate injected from the foam concentrate inlet 32 are mixed in the foam mixture liquid device 3 to generate a foam mixture liquid, and then the foam mixture liquid is injected into the gas-liquid mixing device 1 from the foam mixture liquid outlet 33. Of course, it should be understood that the foam mixing liquid device 3 may be only a container for containing the mixed foam mixing liquid.

The foam generating system further comprises a water supply device for supplying water to the water inlet 25 of the gas storage device 2, preferably, the water supply device is a fire water system for supplying fire water, and the water inlet 25 of the gas storage device 2 is connected to a fire water pipe of the fire water system so as to supply water to the gas storage device 2 through a fire water pump and the fire water pipe. Since the working pressure of the compressed gas foam generating system is generally between 0.6 and 1.0MPa, the daily pressure of the fire fighting water system is between 0.8 and 1.2MPa, and the pressure of the fire fighting water is within the working range of the foam generating system, the gas in the gas storage device 2 can be compressed to have the same pressure as the fire fighting water by applying pressure to the gas in the fire fighting water system, and then the compressed gas can be discharged from the gas storage device 2 to the gas-liquid mixing device 1 by opening the valve to be mixed and foamed.

Of course, it should be understood that the water supply device may be other suitable devices having water, such as a fire engine, which pumps water into the gas storage device 2 by a water pump.

In this embodiment, the gas storage device 2 is configured as shown in fig. 1, and the partition member 2 inside the container 21 of the gas storage device transversely extends to the side wall of the container 21 to partition the cavity inside the container 21 into a gas storage cavity a and a water storage cavity B which are vertically arranged, and the gas storage cavity a is disposed above the water storage cavity B. The gas storage cavity A is provided with a pressure sensor 27 for detecting the pressure in the gas storage cavity A and displaying the gas pressure in the gas storage cavity A; the air inlet 23 and the air outlet 24 are both arranged on the top wall of the air storage cavity A, the water inlet 25 is arranged on the side wall of the water storage cavity B, and the water outlet 26 is arranged on the bottom wall of the water storage cavity B. Of course, the present invention is not limited thereto, and the air storage chamber a and the water storage chamber B of the air storage device 2 may be arranged in other ways such as left and right.

During operation, water that has certain pressure is provided to water inlet 25 of water storage chamber B, can exert pressure to the gas in the gas storage chamber A, then compressed gas that forms in the gas storage chamber A discharges to gas-liquid mixing device 1 in from the gas vent 24 of top, along with the continuous injection of pressurized water, compressed gas can constantly discharge gas storage device 2, treat the gas storage chamber A exhaust back that finishes, water in the water storage chamber B is discharged from the outlet 26 of bottom, partition part 2 descends along with the in-process of bottom drainage gradually, external gas can follow the air inlet 23 entering at gas storage chamber A top, then can pour into water again and pressurize the gas in the gas storage chamber A.

In the case of a large gas demand, the gas storage devices 2 may be provided with two or more, and the gas outlet 24 of each gas storage device 2 is connected to the gas inlet 11 of the gas-liquid mixing device 1, so that the two or more gas storage devices 2 operate in succession, or simultaneously supply gas.

Specifically, as shown in fig. 1, in this embodiment, two gas storage devices 2 are provided, wherein a first exhaust pipe 51 is connected to the exhaust port 24 of one gas storage device 2, and a second exhaust pipe 52 is connected to the exhaust port 24 of the other gas storage device, and the first exhaust pipe 51 and the second exhaust pipe 52 are respectively connected to the main exhaust pipe 5, so as to respectively exhaust the gas into the gas-liquid mixing device 1 through the main exhaust pipe 5. In addition, a flow meter and a flow control valve may be further disposed on each exhaust pipe of the gas storage device 2 to control the exhaust flow rate of the gas.

In this embodiment, the foam generating system comprises a water inlet main pipe 6, and the water inlet 23 of each gas storage device 2 is connected with a water inlet branch pipe, and the water inlet branch pipes are connected to the water inlet main pipe 6. The water inlet main pipe 6 may be connected to a water pump (for example, the water inlet main pipe may be a fire hose connected to a fire pump), and water pumped into the water inlet main pipe 6 is injected into the corresponding gas storage device 2 through the water inlet branch pipes, respectively, to pressurize gas in the gas storage device 2.

The water inlet 31 of the foam mixed liquid device 3 can also be communicated to the water inlet main pipe 6 through a branch pipeline, and water is supplied through the water inlet main pipe 6.

Specifically, the water inlet manifold 6 is connected with a first branch 61 and a second branch 62, the first branch 61 is connected with a first water inlet pipe 611 and a second water inlet pipe 612 which are respectively connected with the water inlets 25 of the two gas storage devices 2, and the second branch 62 is connected to the water inlet 31 of the foam mixed liquid device 3. Thus, water can be supplied from the same water source to the gas storage device 2 and the foam mixed liquid device 3. Of course, the water inlet 25 of the gas storage device 2 and the water inlet 31 of the foam mixed liquid device 3 may be connected to different water supply devices, respectively, to supply water from the different water supply devices.

The foam generating system further comprises a main drain pipe 7, and the water outlet 26 of each of the air storage devices 2 is connected with a branch drain pipe, as shown in fig. 1, wherein the water outlet 26 of one air storage device 2 is connected with a first water drain pipe 71, and the water outlet 26 of the other air storage device 2 is connected with a second water drain pipe 72, and the two water drain pipes are both connected to the main drain pipe 7.

The following describes in detail the operation of the foam generating system shown in fig. 1.

In the specific embodiment, water inlet manifold 6 is a fire hose of a fire fighting system, and the fire hose supplies water to two gas storage devices 2 through a first branch 61 and supplies water to foam mixed liquid device 3 through a second branch 62.

First, all the valves of the second gas storage device, that is, the second gas inlet valve C2, the second gas outlet valve D2, the second water inlet valve E2, and the second water outlet valve F2 of the upper gas storage device 2 in fig. 1 are closed, the first water inlet valve E1 of the first gas storage device (the lower gas storage device 2 in fig. 1) is opened, fire water enters the water storage cavity B of the gas storage device, air in the gas storage cavity a is gradually compressed by the injected water, when the fire water is compressed to a specified pressure (the same pressure as the fire water), the first gas outlet valve D1 is opened, compressed gas is injected into the gas-liquid mixing device 1, and the gas in the gas storage cavity a is continuously discharged into the gas-liquid mixing device 1 along with the continuous injection of water into the water storage cavity B. At the same time, the water and the foam liquid injected into the foam liquid mixture device 3 are mixed to form a foam liquid mixture, and the foam liquid mixture is injected into the gas-liquid mixing device 1, and the compressed gas and the foam liquid mixture are mixed in the gas-liquid mixing device 1 to form compressed gas foam, and the compressed gas foam is ejected from the foam ejection port 13. When the first air storage device starts to convey compressed air outwards, a second water inlet valve E2 of the second air storage device is opened, water is injected into the second air storage device, the air in the second air storage device is gradually increased in pressure, when the internal pressure of the first air storage device reaches a specified pressure, a second water inlet valve E2 is closed, when the internal air in the first air storage device is insufficient, a first exhaust valve D1 is closed, a second water inlet valve E2 and a second exhaust valve D2 of the second air storage device are opened, the compressed air is continuously injected into the air-liquid mixing device 1 through the second air storage device, at the moment, a first water inlet valve E1 of the first air storage device is closed, a first air inlet valve C1 and a first exhaust valve F1 are opened, the water in the first air storage device is discharged into a drain pipe from the drain port 26 under the action of self weight, the drainage rate of the first air storage device depends on the pipe diameter of the drain. After the first gas storage device finishes draining, the first drain valve F1, the first air inlet valve C1 and the first exhaust valve D1 are closed, the first water inlet valve B1 is opened, and fire water is re-injected, so that the pressure of the gas in the first gas storage device 2 is increased again. Thus, the two gas storage devices 2 can alternately and successively inject gas into the gas-liquid mixing device 1, and long-time work is realized. If the gas demand is large, more gas storage devices 2 are required to operate in succession, or two or more gas storage devices 2 are operated simultaneously by setting the valve on/off. Each gas storage device 2 performs circulation operations such as water injection and compressed gas injection, water drainage and the like, and continuously injects compressed gas into the gas-liquid mixing device 1.

Specific examples of self-pressurizing compressed gas foam generating systems that utilize the present invention are provided below.