CN107991298B - High-power foam experiment research device and method - Google Patents
High-power foam experiment research device and method Download PDFInfo
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Abstract
The invention discloses a high-power foam experimental research device and a high-power foam experimental research method, wherein the high-power foam experimental research device comprises a high-power foam generating device, a high-power foam receiving device, a data acquisition device and a data processing device; the high-power foam generating device comprises a foaming cylinder and a foam guiding cylinder, the foaming cylinder is horizontally arranged on the bracket and is used for generating high-power foam by utilizing foaming liquid, and the high-power foam generated in the foaming cylinder is guided into the high-power foam receiving device through the foam guiding cylinder; acquiring high-power foam data in the high-power foam receiving device through a data acquisition device, and transmitting the high-power foam data to a data processing device; and the data processing device processes the received data to obtain the foam expansion ratio, the stability and the coverage rate. The invention adopts the high-power foam generating device to generate high-power foam, can freely adjust 6 operation parameters of the type of the foaming net, the air intake, the distance between the foaming net and the nozzle, the type of the nozzle, the solution pressure and the type of the foaming liquid, and realizes the analysis and calculation of the foaming times, the foam stability and the coverage rate of the foam.
Description
Technical Field
The invention relates to the technical field of safety, in particular to a high-power foam experimental research device and method.
Background
High-power foams have irreplaceable advantages in hazard control: water curtain, water spray systems are far less than high power foams in reducing thermal radiation; water curtain systems require much higher water flow and pressure; high power foams do not extinguish fires and need to be used in conjunction with dry powders. The fire is controlled by high-power foam, and then the fire is extinguished by the dry powder. If only dry powder is used, the same amount of dry powder cannot be extinguished; the dry powder does not guarantee non-afterburning, so that high-power foam is needed to control vapor diffusion and fire. However, the research on the performance of high-power foam and the theory of harm control is still deficient at home and abroad, the high-power foam generator is one of the key factors influencing the performance of foam, but at present, most of the high-power foam generators are formed and cannot be adjusted, and the experimental research is difficult to realize.
According to the research and development on the high-power foam generating device at home and abroad, the research on the high-power foam generating device at home and abroad is far from enough. The related main patents at home and abroad comprise the following patents:
chinese patent CN103656925A discloses a large-scale oil tank conflagration high power foam extinguishing device, and it includes foam generator support and high multiple foam generator, the foam generator support is the cuboid the inside center of foam generator support sets up a cross baffle, the cross baffle will foam generator support internal partitioning becomes four equidimension's cavities, four place respectively in the cavity high multiple foam generator support rear end is fixed with six blend stops the baffle is installed to foam generator support front end. By adopting the technical scheme of the invention, the vehicle-mounted fire extinguishing device has the advantages of light weight, simple structure and small volume, can be carried by a vehicle, can be independently disassembled and moved for use, can be used for simultaneously spot-spraying burning oil tanks from multiple directions, and improves the fire extinguishing efficiency by several times.
Chinese patent CN206167685U discloses a low-pressure high-power foam generator, which comprises a fan shaft, the top end of the fan shaft is fixedly connected with a locking nut, the upper end of the fan shaft is fixedly connected with a flange seat, a bearing assembly is sleeved on the fan shaft inside the flange seat, the lower end of the flange seat is fixedly connected with a bearing cap, the lower end of the fan shaft is fixedly connected with a fan blade assembly, the lower end of the fan blade assembly is fixedly connected with a water outlet guide pipe, and a fastening nut is arranged on the fan blade assembly and the water outlet guide pipe. The above technical scheme is adopted in the utility model, alleviateed pipeline, force pump and high power foam generator's load when not influencing original high power foam generator's fire extinguishing effect greatly, reduce its maintenance cost.
Chinese patent CN201921367U discloses a high power foam generator, which comprises a blower, an outer cylinder, a plurality of nozzles uniformly distributed at the inlet of the outer cylinder through pipelines, and a foaming net arranged at the outlet of the outer cylinder, wherein the outlet of the blower is connected with the inlet of the outer cylinder, and the foaming net is serrated.
Chinese patent CN202355732U provides a self-contained high-power foam generator, which comprises a high-pressure gas cylinder and a foam cylinder, wherein the mouth of the foam cylinder is provided with a foam net, and an externally connected foam liquid injection unit and a gas injection unit communicated with the high-pressure gas cylinder are arranged in the foam cylinder and directly face the foam net. The utility model adopts the gas stored in the high-pressure gas cylinder to provide the air pressure and the air quantity required by the foaming to the high-power foam generator after the pressure is reduced, and does not need special air blowing equipment, so that the fire extinguishing system formed by the high-pressure gas cylinder is simple, low in cost, convenient to maintain, safe and reliable, and is suitable for closed space; the fire extinguishing system formed by the method is simple, flexible and small in size, and is also suitable for facilities such as ships, hangars, garage and the like.
The above patent technologies all research and design the high-power foam generator. In the above patents, the following problems have been encountered in the research of high power foam generators:
(1) all the patents adopt a water conservancy driving mode, but the water conservancy driving mode is difficult to realize in a laboratory;
(2) the above patents do not separately strip adjustable parameters such as the type of the foaming net, the size of the air intake, the distance between the foaming net and the nozzle, the type of the nozzle and the like, so as to realize the separate adjustment of each parameter;
(3) the above patents intend to improve foam coverage, but laboratory sites and devices are limited;
(4) the above patents do not consider the outflow of the foaming liquid, which easily causes the error of the calculation of the foaming times and the waste of the liquid;
(5) the above patent data analysis is not systematic, and the difficulty of extracting and processing research data is large.
In conclusion, the problems that in the prior art, a high-power foam foaming device is hydraulically driven, the operation parameters are less adjustable, the foaming rate is high, foaming liquid flows outwards, and data are difficult to acquire and process are solved, and an effective solution is not provided.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high-power foam experimental research device and a high-power foam experimental research method, wherein a high-power foam generating device is adopted to generate high-power foam, and the types of a foaming net, the size of air inlet, the distance between the foaming net and a nozzle, the types of the nozzle, solution pressure and 6 large operation parameters of foaming liquid can be freely adjusted; and a data acquisition device and a data processing device are arranged to realize automatic generation of an orthogonal data table and analysis and calculation of foam expansion, foam stability and coverage rate.
The technical scheme adopted by the invention is as follows:
a high-power foam experimental research device comprises a high-power foam generating device, a high-power foam receiving device, a data acquisition device and a data processing device; the high-power foam generating device comprises a foaming cylinder and a foam guiding cylinder, the foaming cylinder is horizontally arranged on the bracket and is used for generating high-power foam by utilizing foaming liquid, the foam guiding cylinder is arranged at an outlet of the foaming cylinder and is used for guiding the high-power foam generated in the foaming cylinder into the high-power foam receiving device; acquiring high-power foam data in the high-power foam receiving device through a data acquisition device, and transmitting the high-power foam data to a data processing device; and the data processing device processes the received data to obtain the foam expansion ratio, the stability and the coverage rate.
Further, high power foam generating device still includes foam stock solution bucket, centrifugal pump, fan, nozzle and foaming net, the exit linkage of fan the entry of foaming section of thick bamboo, the nozzle sets up in the foaming section of thick bamboo, foam stock solution bucket pass through the pipeline with the centrifugal pump is connected, the centrifugal pump loop through horizontal transfer line, altitude mixture control pipe and return bend with the nozzle is connected, carries the foaming liquid of the storage of foam stock solution bucket to the nozzle through the centrifugal pump, sprays the foaming liquid on the foaming net through the nozzle, produces high power foam.
Further, a pressure regulating valve, a pressure gauge and a switch valve are sequentially arranged on the height regulating pipe; and a liquid discharge valve is arranged at the lower part of the foam liquid storage barrel.
Further, still be provided with foaming net installation device on the foaming cylinder, foaming net installation device includes the slot, the slot passes through flange fixed mounting on the foaming cylinder, be provided with foaming net fixed ring in the slot, the foaming net inserts in foaming net fixed ring.
Further, a distance adjusting device is further arranged in the foaming cylinder, and the distance adjusting device comprises a threaded clamping sleeve and an inner shrinkage fine adjustment part; the one end of the fine adjustment part that contracts inwards is connected with the one end of return bend through the screw thread cutting ferrule, and the other end is connected with the nozzle, the both ends of the fine adjustment part that contracts inwards are provided with the sealing washer, be provided with a plurality of through-holes on the fine adjustment part that contracts inwards, adjust the nozzle through locking component and through-hole cooperation and foam the distance of net.
Further, the data acquisition device comprises a weighbridge, a graduated scale and a video recorder, wherein the weighbridge is arranged below the high-power foam receiving device, the graduated scale is arranged on the foam receiver, and the video recorder is used for acquiring foam images in the foam receiving container; the data processing device adopts an upper computer, and obtains the foam expansion ratio, the stability and the coverage rate through the upper computer according to the received data.
Furthermore, high power foam generating device still includes reflux unit and baffle, reflux unit includes back flow and backward flow collection container, backward flow collection container passes through the back flow and collects the foaming liquid that does not foam with the backward flow interface connection of seting up on the foaming section of thick bamboo, the baffle sets up the rear side at the backward flow interface.
Furthermore, the high-power foam generating device also comprises a height adjusting device, wherein the height adjusting device comprises a pulley block positioned at the upper part of the support and a balancing weight with a through hole at the center of the rear part of the support, the through hole of the balancing weight is embedded into a straight rod, two ends of the balancing weight are respectively connected to one ends of a first steel wire rope and a second steel wire rope, and the other ends of the first steel wire rope and the second steel wire rope are connected to two ends of the foaming cylinder through the pulley block.
Further, the high-power foam receiving device is a foam receiver; the foam receiver and the foaming cylinder are respectively made of transparent materials; the support comprises a first support leg, a second support leg and a support plate, wherein the bottom end of the support plate is detachably connected with the first support leg and the second support leg and is longitudinally arranged.
An experimental method of a high-power foam experimental research device comprises the following steps:
(1) conveying the foaming liquid in the foam liquid storage barrel to a nozzle through a centrifugal pump, spraying the foaming liquid onto a foaming net through the nozzle, and foaming into high-power foam through the foaming net;
(2) high-power foam is introduced into the foam receiver through the foam introducing cylinder, foam change images in the foam receiver are collected through the video recorder, and collected image data are transmitted to the data collection device;
(3) and the data acquisition device analyzes and calculates the received image data to obtain the foam expansion ratio, the foam stability and the coverage rate, and displays the foam expansion ratio, the foam stability and the coverage rate.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention adopts the high-power foam generating device to generate high-power foam, and can freely adjust 6 operation parameters of the type of the foaming net, the size of the air inlet amount, the distance between the foaming net and the nozzle, the type of the nozzle, the pressure of the solution and the type of the foaming solution; setting a data acquisition device and a data processing device to realize analysis and calculation of foam expansion times, foam stability and coverage rate;
(2) according to the invention, the foaming cylinder is horizontally arranged, so that the condition that unfoamed foaming liquid flows into the high-power foam receiving device is reduced, the foaming liquid is prevented from being sprayed into the foam receiving device through the backflow device and the baffle plate, and the foaming liquid can flow back into the foam liquid storage barrel as required, so that the waste of the solution can be avoided, and the error in calculation of the foaming times can be avoided;
(3) the distance between the nozzle and the foaming net is adjusted through the distance adjusting device, so that the distance between the nozzle and the foaming net can be adjusted at one time by a large distance of 100mm, and can also be adjusted by a small distance of 0.1mm, and the requirements of different nozzles on the distance between the nozzle and the foaming net by different spraying angles are met.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a structural diagram of a high power foam experimental research device disclosed in an embodiment of the present invention;
the device comprises a centrifugal pump 1, a centrifugal pump 2, a foam liquid storage barrel 3, a liquid discharge valve 4, a pressure regulating valve 5, a pressure gauge 6, a height regulating pipe 7, a switch valve 8, a nozzle 9, a foaming barrel 10, a fan 11, a bracket 12, a foam guiding barrel 13, a foaming net 14, a bent pipe 15, a foam receiver 16, a wagon balance 17, a scale 18, a video recorder 19, a data processing device 20, a slot 21, a return pipe 22, a return collecting container 23 and a baffle plate.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As introduced by the background art, the problems of hydraulic drive, less adjustable operation parameters, difficult adjustment, high foaming rate, outflow of foaming liquid and difficult data acquisition and processing of a high-power foam foaming device exist in the prior art, and in order to solve the technical problems, the application provides a high-power foam experimental research device and method, the foaming device is driven by electric power, the type of a foaming net, the size of air inlet, the distance between the foaming net and a nozzle, the type of the nozzle, the pressure of a solution and the type of 6 large operation parameters of the foaming liquid can be freely adjusted by improving the foaming device; the backflow device is added to reduce the waste of the foam liquid; and a data acquisition and processing device is arranged to realize automatic generation of an orthogonal data table, generation, calculation and analysis of a foaming multiple and a foam rising and falling curve.
In an exemplary embodiment of the present application, as shown in fig. 1, a high power foam experimental research device is provided, which includes a high power foam generating device, a high power foam receiving device, a data collecting device and a data processing device.
The high-power foam generating device comprises a foam liquid storage barrel 2, a centrifugal pump 1, a fan 10, a nozzle 8, a foaming net 13, a foaming barrel 9, a foam guiding barrel 12 and a support 11, wherein the foaming barrel 9 is horizontally arranged on the support 11, an outlet of the fan 10 is connected with an inlet of the foaming barrel 9, an outlet of the foaming barrel 9 is connected with the foam guiding barrel 12, the nozzle 8 is arranged in the foaming barrel 9, the foam liquid storage barrel 2 is connected with the centrifugal pump 1 through a pipeline, the centrifugal pump 1 is connected with the nozzle 8 through a horizontal liquid conveying pipe, a height adjusting pipe 6 and a bent pipe 14 in sequence, foaming liquid stored in the foam liquid storage barrel 2 is conveyed to the nozzle 8 through the centrifugal pump 1, and the foaming liquid is sprayed onto the foaming net 13 through the nozzle 8 to generate high-power foam; the height adjusting pipe 6 is sequentially provided with a pressure adjusting valve 4, a pressure gauge 5 and a switch valve 7; and a distance adjusting device is also arranged in the foaming cylinder 9, and the distance between the nozzle 8 and the foaming net 13 is adjusted through the distance adjusting device.
The high-power foam receiving device comprises a foam receiver 15, wherein the foam receiver 15 is positioned below an outlet of the foam guiding cylinder 12, and high-power foam is guided into the foam receiver 15 through the foam guiding cylinder 12, so that the trouble of foam transferring operation is avoided.
The data acquisition device comprises a weighbridge 16, a graduated scale 17 and a video recorder 18, wherein the weighbridge 16 is arranged below the foam receiver 15, the graduated scale 17 is arranged on the foam receiver, and the video recorder 18 is used for acquiring foam images in the foam receiving container. And acquiring high-power foam data in the high-power foam receiving device through a data acquisition device, and transmitting the high-power foam data to a data processing device.
The data processing device 19 processes the received data to obtain the foam expansion ratio, the stability and the coverage rate.
The high-power foam experimental research device provided by the embodiment adopts the high-power foam generating device to generate high-power foam, and can freely adjust 6 large operating parameters of the type of a foaming net, the size of air inlet, the distance between the foaming net and a nozzle, the type of the nozzle, the pressure of a solution and the type of a foaming liquid; and a data acquisition device and a data processing device are arranged to realize automatic generation of an orthogonal data table and analysis and calculation of foam expansion, foam stability and coverage rate. In this embodiment, the foam cylinder is horizontally disposed to reduce the flow of the unfoamed foam liquid into the high power foam receiver.
In order to observe the working conditions of all parts of the high-power foam, the foaming cylinder 9 in the high-power foam generating device is made of transparent materials, so that the working conditions of all parts in the high-power foam generating device can be observed, and abnormal timely adjustment can be found.
In order to avoid the foaming liquid from being sprayed to the high-power foam receiving device, a backflow device and a baffle plate 23 are added in the high-power foam generating device, and the backflow device is added to reduce the waste of the foaming liquid; the backflow device comprises a backflow pipe 21 and a backflow collecting container 22, the backflow collecting container 22 is connected with a backflow interface arranged on the foaming cylinder through the backflow pipe 21, and the baffle plate 23 is arranged on the rear side of the backflow interface to prevent foaming liquid from flowing out of the foam collecting device; through reflux unit and baffle 23, guarantee that the foaming liquid does not spout outward to the foam collection device in to can flow back to the foam stock solution bucket as required, both can avoid the waste of solution, can avoid the foaming multiple miscalculation again, and above all can improve accuse harmful effect, such as the increase that reduces liquid and LNG contact LNG evaporation capacity.
In order to replace liquid for the foam liquid storage barrel, the liquid discharge valve 3 is arranged at the outlet of the foam liquid storage barrel, so that the efficiency of cleaning the foam liquid storage barrel during liquid replacement can be improved, and residual liquid in the foam liquid storage barrel can be rapidly discharged.
In order to adjust the distance between the nozzle and the foaming net, a distance adjusting device is arranged in the foaming cylinder and comprises a threaded clamping sleeve and an internal shrinkage fine adjustment part; the inner shrinkage fine adjustment component is connected with one end of the bent pipe through a threaded clamping sleeve, and one-time 100mm large-distance adjustment is realized; the internal shrinkage fine adjustment component further comprises a locking component and a sealing component, the sealing component is arranged at two ends of the internal shrinkage fine adjustment component, a plurality of through holes are formed in the internal shrinkage fine adjustment component, and the distance between the nozzle and the foaming net is adjusted through the matching of the locking component and the through holes, so that 1mm fine adjustment is realized. The distance adjusting device enables the distance between the nozzle and the foaming net to be adjusted at one time by a large distance of 100mm and also adjusted at a small distance of 0.1mm, and meets the requirements of different spraying angles of different nozzles on the distance between the nozzle and the foaming net.
The high-power foam generating device is respectively provided with the electrically driven centrifugal pump 1 and the fan 10, and the driving mode is easy to be used in a laboratory and is beneficial to the control and adjustment of parameters.
In order to enable the foaming net to be replaced and installed better, a foaming net installation device is further arranged on the foaming cylinder and comprises an insertion groove 20, the insertion groove 20 is fixedly installed on the foaming cylinder through a flange, a foaming net fixing ring is arranged in the insertion groove, and the foaming net 13 is inserted into the foaming net fixing ring, so that the foaming net is flexibly replaced.
In order to realize the research on the height parameters of the foam, the high-power foam generating device also comprises a height adjusting device, and the height of the foaming cylinder can be freely adjusted through the height adjusting device; the height adjusting device comprises a pulley block positioned at the upper part of the support and a balancing weight with a through hole in the center positioned at the back of the support, the through hole of the balancing weight is embedded into a straight rod, two ends of the balancing weight are respectively connected to one ends of a first steel wire rope and a second steel wire rope, and the other ends of the first steel wire rope and the second steel wire rope are connected to two ends of the foaming cylinder through the pulley block.
In this embodiment, the support 11 is a detachable structure, the support 11 includes a first support leg, a second support leg and a support plate, and the bottom end of the support plate is detachably connected to the first support leg and the second support leg and is vertically disposed.
In order to observe the change of the foam, the foam receiver 15 is made of transparent materials, so that the phenomena of generation, coverage and destruction of the foam can be conveniently observed, the data extraction and the observation of the subtle phenomenon are facilitated, and the image of the foam change can be collected by a video recorder, so that the parameter extraction is convenient.
In this embodiment, the data processing device 19 uses an upper computer, and can obtain a time-varying curve of the foam quality through existing software installed on the upper computer, that is, a time-varying curve and trend of the foaming times, a maximum value and a minimum value of the foaming times during foaming, and corresponding time; a curve of the foam rising height along with time change can be obtained, namely a curve and a trend of the foam coverage rate along with time change, a maximum value and a minimum value of the foam coverage rate and corresponding moments; it is also possible to obtain the curve of the decrease in height of the foam as a function of time, i.e. the curve and trend of the rate of foam collapse as a function of time, the maximum and minimum values of the rate of foam collapse during foaming and the corresponding moments.
In another exemplary embodiment of the present application, an experimental method of a high power foam experimental research apparatus is provided, the method comprising the steps of:
(1) conveying the foaming liquid in the foam liquid storage barrel to a nozzle through a centrifugal pump, spraying the foaming liquid onto a foaming net through the nozzle, and foaming into high-power foam through the foaming net;
(2) high-power foam is introduced into the foam receiver through the foam introducing cylinder, foam change images in the foam receiver are collected through the video recorder, and collected image data are transmitted to the data collection device;
(3) and the data acquisition device analyzes and calculates the received image data to obtain the foam expansion ratio, the foam stability and the coverage rate, and displays the foam expansion ratio, the foam stability and the coverage rate.
From the above description, it can be seen that the above-described embodiments of the present application achieve the following technical effects:
(1) the invention adopts the high-power foam generating device to generate high-power foam, and can freely adjust the type of the foaming net, the air inlet quantity, the distance between the foaming net and the nozzle, the type of the nozzle, the solution pressure and 6 large operating parameters of the foaming liquid; setting a data acquisition device and a data processing device to realize automatic generation of an orthogonal data table and analysis and calculation of foam expansion, foam stability and coverage rate;
(2) according to the invention, the foaming cylinder is horizontally arranged, so that the condition that unfoamed foaming liquid flows into the high-power foam receiving device is reduced, the foaming liquid is prevented from being sprayed into the foam receiving device through the backflow device and the baffle plate, and the foaming liquid can flow back into the foam liquid storage barrel as required, so that the waste of the solution can be avoided, and the error in calculation of the foaming times can be avoided;
(3) the distance between the nozzle and the foaming net is adjusted through the distance adjusting device, so that the distance between the nozzle and the foaming net can be adjusted at one time by a large distance of 100mm, and can also be adjusted by a small distance of 0.1mm, and the requirements of different nozzles on the distance between the nozzle and the foaming net by different spraying angles are met.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (8)
1. A high-power foam experimental research device is characterized by comprising a high-power foam generating device, a high-power foam receiving device, a data acquisition device and a data processing device; the high-power foam generating device comprises a foaming cylinder and a foam guiding cylinder, the foaming cylinder is horizontally arranged on the bracket and is used for generating high-power foam by utilizing foaming liquid, the foam guiding cylinder is arranged at an outlet of the foaming cylinder and is used for guiding the high-power foam generated in the foaming cylinder into the high-power foam receiving device; acquiring high-power foam data in the high-power foam receiving device through a data acquisition device, and transmitting the high-power foam data to a data processing device; the data processing device processes the received data to obtain foam expansion times, stability and coverage rate;
the high-power foam generating device further comprises a foam liquid storage barrel, a centrifugal pump, a fan, a nozzle and a foaming net, wherein an outlet of the fan is connected with an inlet of the foaming barrel, the nozzle is arranged in the foaming barrel, the foam liquid storage barrel is connected with the centrifugal pump through a pipeline, the centrifugal pump is connected with the nozzle through a horizontal liquid conveying pipe, a height adjusting pipe and a bent pipe in sequence, foaming liquid stored in the foam liquid storage barrel is conveyed to the nozzle through the centrifugal pump, and the foaming liquid is sprayed onto the foaming net through the nozzle to generate high-power foam;
the data acquisition device comprises a weighbridge, a graduated scale and a video recorder, the weighbridge is arranged below the high-power foam receiving device, the graduated scale is arranged on the foam receiver, and the video recorder is used for acquiring foam images in a foam receiving container; the data processing device adopts an upper computer, and obtains the foam expansion ratio, the stability and the coverage rate through the upper computer according to the received data.
2. The experimental research device for high power foam according to claim 1, wherein the height adjusting pipe is provided with a pressure adjusting valve, a pressure gauge and a switch valve in sequence; and a liquid discharge valve is arranged at the lower part of the foam liquid storage barrel.
3. The experimental research device for high power foam as claimed in claim 1, wherein a foam net mounting device is further disposed on the foam cylinder, the foam net mounting device includes a slot, the slot is fixedly mounted on the foam cylinder through a flange, a foam net fixing ring is disposed in the slot, and the foam net is inserted into the foam net fixing ring.
4. The experimental research device for high-power foam according to claim 1, wherein a distance adjusting device is further arranged in the foaming cylinder, and the distance adjusting device comprises a threaded clamping sleeve and an inner shrinkage fine adjustment part; the internal shrinkage fine adjustment part is connected with one end of the bent pipe through a threaded clamping sleeve, sealing rings are arranged at two ends of the internal shrinkage fine adjustment part, a plurality of through holes are formed in the internal shrinkage fine adjustment part, and the distance between the nozzle and the foaming net is adjusted through the matching of the locking component and the through holes.
5. The experimental research device for high-power foam according to claim 1, wherein the high-power foam generator further comprises a backflow device and a baffle plate, the backflow device comprises a backflow pipe and a backflow collecting container, the backflow collecting container is connected with a backflow interface arranged on the foaming cylinder through the backflow pipe, and the baffle plate is arranged on the rear side of the backflow interface.
6. The experimental research device for high-power foam according to claim 1, wherein the high-power foam generating device further comprises a height adjusting device, the height adjusting device comprises a pulley block located at the upper part of the bracket and a counterweight block located at the rear part of the bracket and having a through hole at the center, the through hole of the counterweight block is embedded in a straight rod, two ends of the counterweight block are respectively connected to one ends of the first steel wire rope and the second steel wire rope, and the other ends of the first steel wire rope and the second steel wire rope are connected to two ends of the foam cylinder through the pulley block.
7. The experimental research device for high-power foam according to claim 1, wherein the high-power foam receiving device is a foam receiver; the foam receiver and the foaming cylinder are respectively made of transparent materials; the support comprises a first support leg, a second support leg and a support plate, wherein the bottom end of the support plate is detachably connected with the first support leg and the second support leg and is longitudinally arranged.
8. An experimental method using the high power foam experimental research device of any one of claims 1 to 7, characterized by comprising the following steps:
(1) conveying the foaming liquid in the foam liquid storage barrel to a nozzle through a centrifugal pump, spraying the foaming liquid onto a foaming net through the nozzle, and foaming into high-power foam through the foaming net;
(2) high-power foam is introduced into the foam receiver through the foam introducing cylinder, foam change images in the foam receiver are collected through the video recorder, and collected image data are transmitted to the data collection device;
(3) and the data acquisition device analyzes and calculates the received image data to obtain the foam expansion ratio, the foam stability and the coverage rate, and displays the foam expansion ratio, the foam stability and the coverage rate.
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| CN107991298B true CN107991298B (en) | 2020-04-24 |
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| CN109735374A (en) * | 2019-03-19 | 2019-05-10 | 中国石油大学(华东) | The preparation facilities and preparation method of methane hydrate under a kind of normal pressure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201295580Y (en) * | 2008-10-07 | 2009-08-26 | 兴化锁龙消防药剂有限公司 | Water-based foam generator for dust suppression and noise reduction |
| CN201622271U (en) * | 2010-01-15 | 2010-11-03 | 绍兴市恒丰聚氨酯实业有限公司 | Foam size stability detector |
| CN202892720U (en) * | 2012-11-08 | 2013-04-24 | 公安部天津消防研究所 | Compressed air foam fire-extinguishing apparatus |
| CN104792650A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Experimental research device for inhibition of evaporation and diffusion of liquefied natural gas by high-expansion foam |
| CN205138953U (en) * | 2015-11-27 | 2016-04-06 | 南京工业大学 | Experimental device for LNG vapour diffusion effect is accelerated to high power foam |
| CN105999600A (en) * | 2016-07-12 | 2016-10-12 | 快达消防科技有限公司 | Shower nozzle for deck |
| CN106645591A (en) * | 2017-01-23 | 2017-05-10 | 中国民用航空飞行学院 | Apparatus for determining low expansion foam drainage |
| CN106990014A (en) * | 2017-06-07 | 2017-07-28 | 国信利纾（惠州）生化科技有限公司 | The coefficient of foaming measurement system and assay method of a kind of fire foam |
| CN107252539A (en) * | 2016-11-11 | 2017-10-17 | 四川省科拓梦无人机科技有限公司 | A kind of cover type completely cuts off extinguishing chemical |
| US10071269B2 (en) * | 2012-01-12 | 2018-09-11 | Rusmar Incorporated | Method and apparatus for applying rock dust to a mine wall |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9228435B2 (en) * | 2013-10-24 | 2016-01-05 | Rusmar Incorporated | Method and apparatus for applying rock dust to a mine wall |
-
2017
- 2017-11-10 CN CN201711103755.4A patent/CN107991298B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201295580Y (en) * | 2008-10-07 | 2009-08-26 | 兴化锁龙消防药剂有限公司 | Water-based foam generator for dust suppression and noise reduction |
| CN201622271U (en) * | 2010-01-15 | 2010-11-03 | 绍兴市恒丰聚氨酯实业有限公司 | Foam size stability detector |
| US10071269B2 (en) * | 2012-01-12 | 2018-09-11 | Rusmar Incorporated | Method and apparatus for applying rock dust to a mine wall |
| CN202892720U (en) * | 2012-11-08 | 2013-04-24 | 公安部天津消防研究所 | Compressed air foam fire-extinguishing apparatus |
| CN104792650A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Experimental research device for inhibition of evaporation and diffusion of liquefied natural gas by high-expansion foam |
| CN205138953U (en) * | 2015-11-27 | 2016-04-06 | 南京工业大学 | Experimental device for LNG vapour diffusion effect is accelerated to high power foam |
| CN105999600A (en) * | 2016-07-12 | 2016-10-12 | 快达消防科技有限公司 | Shower nozzle for deck |
| CN107252539A (en) * | 2016-11-11 | 2017-10-17 | 四川省科拓梦无人机科技有限公司 | A kind of cover type completely cuts off extinguishing chemical |
| CN106645591A (en) * | 2017-01-23 | 2017-05-10 | 中国民用航空飞行学院 | Apparatus for determining low expansion foam drainage |
| CN106990014A (en) * | 2017-06-07 | 2017-07-28 | 国信利纾（惠州）生化科技有限公司 | The coefficient of foaming measurement system and assay method of a kind of fire foam |
Non-Patent Citations (1)
| Title |
|---|
| Foaming Volume and Foam Stability;Sydney Ross;《The Journal of Physical Chemistry》;19460731;第50卷(第5期);全文 * |
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