CN215900806U - Foam generator for material proportioning experiment - Google Patents
Foam generator for material proportioning experiment Download PDFInfo
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- CN215900806U CN215900806U CN202121464389.7U CN202121464389U CN215900806U CN 215900806 U CN215900806 U CN 215900806U CN 202121464389 U CN202121464389 U CN 202121464389U CN 215900806 U CN215900806 U CN 215900806U
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Abstract
The utility model discloses a foam generator for a material proportioning experiment, which belongs to the technical field of foam fluid and comprises a mixer, an air source device and a liquid source device, wherein the liquid source device is connected with the mixer through a first pipeline, a second pipeline is led out from the first pipeline between the liquid source device and the mixer, the inlet of the second pipeline is connected with the air source device, a third pipeline is led out from the first pipeline between the liquid source device and the second pipeline, the third pipeline is communicated with a liquid inlet of a first control valve for controlling the flow of foam liquid, the liquid outlet of the first control valve is communicated with a liquid storage tank for storing the foam liquid, a second control valve for controlling the flow of gas is arranged on the second pipeline, the gas inlet of the second control valve is communicated with the air source device, and the gas outlet of the second control valve is communicated with the mixer. The utility model controls the mixing proportion of the gas and the foam concentrate through the control valve for controlling the flow, thereby improving the quality of the foam mixed by the gas and the foam concentrate.
Description
Technical Field
The utility model relates to the technical field of foam fluid, in particular to a foam generator for a material proportioning experiment.
Background
The prior art provides a two-phase foam fire extinguishing system, which includes a liquid storage tank filled with foam concentrate, a mixer for mixing the foam concentrate and gas, a pump for pumping the foam concentrate in the liquid storage tank into the mixer, and an air pump for pumping the gas into the mixer, wherein a first valve body for switching on and off a first pipeline is arranged on a first pipeline connected with the mixer, and a second valve body for switching on and off a second pipeline is arranged on a second pipeline connected with the mixer. The fire extinguishing system can control gas and foam concentrate to enter the mixer through the on-off of the first valve body and the second valve body, and the gas and the foam concentrate entering the mixer can be further mixed to form foam.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the utility model provides a foam generator for a material proportioning experiment, which can control the mixing ratio of gas and foam concentrate, and further can improve the quality of foam mixed by the gas and the foam concentrate.
The foam generator for the material proportioning experiment according to the embodiment of the utility model comprises a mixer for mixing foam liquid and gas, a gas source device for conveying gas for the mixer and a liquid source device for conveying foam liquid for the mixer, wherein the liquid source device is connected with the mixer through a first pipeline, a second pipeline is led out from the first pipeline between the liquid source device and the mixer, the inlet of the second pipeline is connected with the gas source device, a third pipeline is led out from the first pipeline between the liquid source device and the second pipeline, the third pipeline is communicated with a liquid inlet of a first control valve for controlling the flow of the foam liquid, the liquid outlet of the first control valve is communicated with a liquid storage tank for storing the foam liquid, a second control valve for controlling the flow of the gas is arranged on the second pipeline, and the gas inlet of the second control valve is communicated with the gas source device, and the air outlet of the second control valve is communicated with the mixer.
Has the advantages that: according to the foam generator for the material proportioning experiment, the foam generator can control the mixing ratio of the gas and the foam concentrate through the first control valve and the second control valve for controlling the flow rate, and further can improve the quality of the foam mixed by the gas and the foam concentrate.
In some embodiments, a first flow meter for detecting the flow rate of the foam liquid is arranged on the first pipeline between the third pipeline and the second pipeline, a second flow meter for detecting the flow rate of the gas is arranged on the second pipeline between the second control valve and the first pipeline, the foam generator further comprises a controller for adjusting the opening of the first control valve and the second control valve, the controller is in sensing connection with the first flow meter and the second flow meter, and the controller is in control connection with the first control valve and the second control valve.
In some embodiments, the liquid source device comprises a liquid storage tank containing foam liquid and a pump for outputting the foam liquid in the liquid storage tank, wherein a liquid inlet of the pump is communicated with the liquid storage tank, and a liquid outlet of the pump is communicated with the first pipeline.
In some embodiments, the gas source device is an energy accumulator and a gas pump filled with gas, the energy accumulator is communicated with the gas outlet of the gas pump through a fourth pipeline, and the fourth pipeline is communicated with the second pipeline.
In some embodiments, a relief valve is provided on the fourth line to prevent failure due to excessive accumulator pressure.
In some embodiments, a pressure gauge is disposed on the fourth line for detecting accumulator pressure.
In some embodiments, a second check valve capable of only flowing gas from the gas pump to the accumulator is arranged on the fourth pipeline between the gas pump and the second pipeline.
In some embodiments, a fifth pipeline is led out of the first pipeline between the pump and the first flow meter, the fifth pipeline is communicated with an inlet of an overflow valve, and an outlet of the overflow valve is communicated with the liquid storage tank.
In some embodiments, the first control valve is a proportional valve.
In some embodiments, the second control valve is a pneumatic proportional valve.
Drawings
Fig. 1 is a schematic diagram of a foam generator for a material proportioning experiment according to an embodiment of the present invention.
Reference numerals:
a liquid storage tank 1; a first pipeline 2; a pump 3; a first flow meter 4; a first check valve 5; a mixer 6; an outlet valve 7; a foam outlet 8; a third check valve 9; a second flow meter 10; a second control valve 11; a second pipe 12; a second check valve 13; an air pump 14; an accumulator 15; a safety valve 16; a controller 17; a first control valve 18; an overflow valve 19; a liquid inlet 20; a liquid inlet valve 21; a pressure sensor 22; a third pipeline 23; a fifth pipeline 24; and a fourth line 25.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1, a foam generator (hereinafter referred to as a foam generator) for a material proportioning test according to an embodiment of the present invention includes: a mixer 6 for mixing foam liquid and gas, a gas source device for conveying gas for the mixer 6, and a liquid source device for conveying foam liquid for the mixer 6, wherein the liquid source device is connected with the mixer 6 through a first pipeline 2, a second pipeline 12 is led out from the first pipeline 2 between the liquid source device and the mixer 6, the inlet of the second pipeline 12 is connected with the gas source device, a third pipeline 23 is led out from the first pipeline 2 between the liquid source device and the second pipeline 12, the third pipeline 23 is communicated with the liquid inlet of a first control valve 18 for controlling the flow of the foam liquid, the liquid outlet of the first control valve 18 is communicated with a liquid storage tank 1 for storing the foam liquid, a second control valve 11 for controlling the flow of the gas is arranged on the second pipeline 12, the gas inlet of the second control valve 11 is communicated with the gas source device, the gas outlet of the second control valve 11 is communicated with the mixer 6, thus, when gas and foam concentrate are fed into the mixer 6 from the first control valve 18 and the second control valve 11, the ratio of gas and foam concentrate fed into the mixer 6 can be controlled to a ratio that produces foam of a better quality, since the flow rate of gas and foam concentrate can be adjusted by the first control valve 18 and the second control valve 11.
In some embodiments, a first flow meter 4 for detecting the flow rate of the foam liquid is arranged on the first pipeline 2 between the third pipeline 23 and the second pipeline 12, a second flow meter 10 for detecting the flow rate of the gas is arranged on the second pipeline 12 between the second control valve 11 and the first pipeline 2, the foam generator further comprises a controller 17 for adjusting the opening of the first control valve 18 and the second control valve 11, the controller 17 is in sensing connection with the first flow meter 4 and the second flow meter 10, and the controller 17 is in control connection with the first control valve 18 and the second control valve 11, so that the first flow meter 4, the first control valve 18 and the controller 17 form a first feedback loop, and at the same time, the second flow meter 10, the second control valve 11 and the controller 17 form a second feedback loop, which can rectilinearly control the flow rates of the foam liquid and the gas, and particularly, the first flowmeter 4 and the second flowmeter 10 can detect the flow rates of the foam liquid and the gas flowing out through the first control valve 18 and the second control valve 11, the first flowmeter 4 and the second flowmeter 10 feed back the detected flow rate data to the controller 17, the controller 17 further controls the opening degrees of the first control valve 18 and the second control valve 11 based on the flow rate data, and the first control valve 18 and the second control valve 11 can rectilinearly control the flow rates and the proportions of the foam liquid and the gas.
In some embodiments, the liquid source device comprises a liquid storage tank 1 containing foam liquid and a pump 3 for outputting the foam liquid in the liquid storage tank 1, wherein a liquid inlet of the pump 3 is communicated with the liquid storage tank 1, and a liquid outlet of the pump 3 is communicated with the first pipeline 2, so that when the pump 3 is driven, the foam liquid with certain pressure can be provided for the first pipeline 2.
It should be noted that, in the present invention, the type of the pump 3 is not limited, and for example, the pump 3 may be a fixed displacement pump or a variable displacement pump.
It will be appreciated that in other embodiments the source may also be a second accumulator containing foam concentrate, which is in direct communication with the first conduit 2 to provide foam concentrate under pressure to the first conduit 2.
It will be appreciated that in other embodiments the liquid source means may also comprise a reservoir 1 containing foam liquid, a pump 3 and a second accumulator containing foam liquid, the liquid inlet of the pump 3 being in communication with the reservoir 1, the liquid outlet of the pump 3 being in communication with the first conduit 2, the first conduit 2 leading from a sixth conduit between the pump 2 and the first flow meter 4, the liquid inlet of the sixth conduit being in communication with the second accumulator, such that the second accumulator is capable of reducing pressure fluctuations in the first conduit when the pump 3 is in operation.
In some embodiments, the gas source device is a gas-filled accumulator 15 and an air pump 14, the accumulator 15 is communicated with the air outlet of the air pump 14 through a fourth pipeline 25, and the fourth pipeline 25 is communicated with the second pipeline 12, so that when the air pump 14 supplies gas to the second pipeline 12, the gas-filled accumulator 15 can reduce the pressure fluctuation of the second pipeline 12.
In some embodiments, a second one-way valve 13 is disposed on the fourth pipeline 25 between the air pump 14 and the second pipeline 12, which only can allow air to flow from the air pump 14 to the accumulator 15, so that when the air pump 14 stops supplying air to the second pipeline 12, the accumulator 15 does not directly communicate with the air pump 14 and leaks air, and the accumulator 15 can continue to supply air with a certain pressure to the second pipeline 12 for the system to operate.
It is understood that in other embodiments, the gas source device may also be an accumulator filled with gas, and the accumulator is communicated with the second pipeline 12 to provide the second pipeline 12 with gas with certain pressure.
In some embodiments, a relief valve 16 is provided in the fourth line 25 to prevent the accumulator 15 from being over pressurized and failing.
In order to be able to observe the real-time pressure of the accumulator 15 when adjusting the safety valve 16, in some embodiments a pressure gauge 22 for detecting the pressure of the accumulator 15 is provided on the fourth line 25.
In order to prevent the pump 3 from being damaged due to the over-pressure of the first pipeline 2, in some embodiments, a fifth pipeline 24 is led out from the first pipeline 2 between the pump 3 and the first flow meter 4, the fifth pipeline 24 is communicated with an inlet of the overflow valve 19, and an outlet of the overflow valve 19 is communicated with the liquid storage tank 1.
In some embodiments, the first control valve 18 may be a proportional valve or a digital valve.
In some embodiments, the second control valve 11 may be a pneumatic proportional valve, or may be a piezoelectric gas flow control valve.
In order to prevent foam mixed by foam concentrate and gas from flowing back into the pump and the air pump and further damaging the pump and the air pump when the pump and the air pump are stopped, in some embodiments, a first check valve 5 which can only flow the foam concentrate from the first flow valve 4 to the mixer 6 is arranged on the first pipeline 2 between the first flow valve 4 and the mixer 6; a third non-return valve 9 is arranged on the second line 12 between the second flow meter 10 and the mixer 6, which valve is only capable of passing gas from the second flow meter 10 to the mixer 6.
In some embodiments, a tubular liquid inlet 20 extending vertically is disposed above the liquid storage tank 1, foam liquid can enter the liquid storage tank 1 through the liquid inlet 20, and the liquid inlet 20 is provided with a first valve 21 for closing and opening the liquid inlet 20.
In some embodiments, the mixer 6 is provided with a tubular foam outlet 8 at an end remote from the first pipeline 2, the foam in the mixer 6 can be output outwards through the foam outlet 8, and the foam outlet 8 is provided with a second valve 7 for closing and opening the foam outlet 8.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
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. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A foam generator for material proportioning experiments comprises: the device comprises a mixer for mixing foam concentrate and gas, a gas source device for conveying gas for the mixer and a liquid source device for conveying foam concentrate for the mixer, wherein the liquid source device is connected with the mixer through a first pipeline, a second pipeline is led out from the first pipeline between the liquid source device and the mixer, and an inlet of the second pipeline is connected with the gas source device, and the device is characterized in that: a third pipeline is led out of the first pipeline between the liquid source device and the second pipeline, the third pipeline is communicated with a liquid inlet of a first control valve used for controlling the flow of foam liquid, a liquid outlet of the first control valve is communicated with a liquid storage tank used for storing the foam liquid, a second control valve used for controlling the flow of gas is arranged on the second pipeline, a gas inlet of the second control valve is communicated with the gas source device, and a gas outlet of the second control valve is communicated with the mixer.
2. The foam generator for material proportioning experiments as claimed in claim 1, wherein: the foam generator comprises a first pipeline, a second pipeline, a third pipeline, a first flow meter, a controller and a second flow meter, wherein the first flow meter is arranged between the third pipeline and the second pipeline on the first pipeline and used for detecting the flow of foam liquid, the second flow meter is arranged between a second control valve and the first pipeline on the second pipeline and used for detecting the flow of gas, the controller is used for adjusting the opening of the first control valve and the second control valve, the controller is in sensing connection with the first flow meter and the second flow meter, and the controller is in control connection with the first control valve and the second control valve.
3. The foam generator for material proportioning experiments as claimed in claim 2, wherein: the liquid source device comprises a liquid storage tank filled with foam liquid and a pump for outputting the foam liquid in the liquid storage tank, wherein a liquid inlet of the pump is communicated with the liquid storage tank, and a liquid outlet of the pump is communicated with the first pipeline.
4. The foam generator for the material proportioning experiment of claim 3, wherein: the gas source device comprises an energy accumulator and a gas pump, wherein the energy accumulator is filled with gas, the gas outlet of the energy accumulator is communicated with the gas pump through a fourth pipeline, and the fourth pipeline is communicated with the second pipeline.
5. The foam generator for material proportioning experiments as claimed in claim 4, wherein: and a second one-way valve which can only enable gas to flow from the air pump to the energy accumulator is arranged between the air pump and the second pipeline on the fourth pipeline.
6. The foam generator for material proportioning experiments as claimed in claim 5, wherein: and a safety valve for preventing the failure caused by overlarge pressure of the accumulator is arranged on the fourth pipeline.
7. The foam generator for the material proportioning experiment of claim 6, wherein: and a pressure gauge for detecting the pressure of the energy accumulator is arranged on the fourth pipeline.
8. The foam generator for the material proportioning experiment of claim 3, wherein: and a fifth pipeline is led out from the first pipeline between the pump and the first flowmeter, the fifth pipeline is communicated with a liquid inlet of the overflow valve, and a liquid outlet of the overflow valve is communicated with the liquid storage tank.
9. The foam generator for material proportioning experiments according to any one of claims 1-8, wherein: the first control valve is a proportional valve.
10. The foam generator for the material proportioning experiment of claim 9, wherein: the second control valve is a pneumatic proportional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121464389.7U CN215900806U (en) | 2021-06-29 | 2021-06-29 | Foam generator for material proportioning experiment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121464389.7U CN215900806U (en) | 2021-06-29 | 2021-06-29 | Foam generator for material proportioning experiment |
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| CN215900806U true CN215900806U (en) | 2022-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599753A (en) * | 2021-06-29 | 2021-11-05 | 煤炭科学技术研究院有限公司 | Foam generator for material proportioning experiment |
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- 2021-06-29 CN CN202121464389.7U patent/CN215900806U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599753A (en) * | 2021-06-29 | 2021-11-05 | 煤炭科学技术研究院有限公司 | Foam generator for material proportioning experiment |
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