CN113376051A - Device for automatically measuring foam liquid separation time and using method thereof - Google Patents
Device for automatically measuring foam liquid separation time and using method thereof Download PDFInfo
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- CN113376051A CN113376051A CN202110575729.1A CN202110575729A CN113376051A CN 113376051 A CN113376051 A CN 113376051A CN 202110575729 A CN202110575729 A CN 202110575729A CN 113376051 A CN113376051 A CN 113376051A
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- 239000006260 foam Substances 0.000 title claims abstract description 140
- 239000007788 liquid Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000000926 separation method Methods 0.000 title claims description 45
- 238000005303 weighing Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a device for automatically measuring foam liquid separating time and a using method thereof, the device for automatically measuring the foam liquid separating time comprises a foam collector, the bottom of the foam collector is provided with a liquid separating receiver, the side wall of the foam collector is connected with a support and is provided with a weighing sensor module, the support is provided with a screen and control unit integrated module and a timer module, and the device is also provided with a power supply unit; the invention also discloses a using method of the device, which is characterized in that the foam to be tested is collected to the foam collector and adjusted to a preset position, the guide pipe is opened, the operation screen is operated and controlled, and finally the liquid separating time of the target foam on the operation screen is read under the condition that the timer is disconnected.
Description
Technical Field
The invention belongs to the technical field of foam fire extinguishing, and particularly relates to a device for automatically measuring foam liquid separation time, and a using method of the device.
Background
The power transformer is one of main devices in a power grid, has multiple functions, not only can increase voltage to transmit electric energy to a power utilization area, but also can reduce the voltage to various levels of use voltage to meet the power utilization requirement. In any case, both the step-up and step-down must be done by a transformer. When the transformer is in fire, oil is attached to the surface of the transformer, and foam extinguishment can be used for fighting A, B and E fires. The foam is most suitable for fighting class B fires, such as oil fires of diesel oil, gasoline, petroleum and the like, and the transformer fire belongs to the class B fires, so that the foam with good quality can effectively reduce the fire loss.
Foams are aggregates of gas bubbles separated from each other by a liquid film, are dispersions of gas in liquid, and generally have an internal volume fraction of more than 90%. The liquid separating time of the foam is an important parameter for the quality of the foam. The liquid separating time is the time from the generation of a certain mass of foam to the separation of the mixed liquid.
Foam drainage time for the quality of the foam, the longer the drainage time the better, which means the higher the stability of the foam the better the quality. According to the mixing ratio of the foam concentrate and water, the foam extinguishing agent is divided into 1 percent type, 3 percent type and 6 percent type, and for the 3 percent type foam extinguishing agent, the 25 percent liquid separating time of the foam is at least more than 3.5 min. Therefore, the accurate measurement of the liquid separation time is very important, and the problem that the measurement efficiency and the accuracy of the foam liquid separation time are not high enough exists in the existing foam fire extinguishing.
Disclosure of Invention
The invention aims to provide a device for automatically measuring foam liquid separation time, and solves the problem that the measurement efficiency and accuracy of the foam liquid separation time are not high enough in the existing foam fire extinguishing.
One technical solution of the present invention is that,
a device for automatically measuring foam liquid separating time comprises a foam collector, wherein a liquid separating receiver is arranged at the bottom of the foam collector, a support is connected to the side wall of the foam collector and is provided with a weighing sensor module, the support is provided with a screen and control unit integrated module and a timer module, and the device is also provided with a power supply unit;
wherein, the foam collector is used for containing the foam to be measured; the liquid separation receiver is used for receiving the mixed liquid formed by the foam liquid separation; the timer module is used for timing the target quality liquid separation time; the screen and control unit integration module is used for calculating and transmitting data and controlling the switch of the timer module; the weighing sensor module is used for detecting the target mass of the total foam mass after detection and liquid separation, and then transmitting the target mass to the screen and control unit integrated module, and the screen and control unit integrated module controls the timer module to stop timing and display the liquid separation time.
The invention is also characterized in that:
the support is used for fixed foam collector and the height of analysing the liquid receiver, and is used for adjusting the foam collector, and the support includes branch and base, and screen and the integrated module of control unit and timer module set up in branch, and the weighing sensor module sets up between branch and foam collector, analyses the liquid receiver and sets up in the base. The support is made of a soldering iron material.
And the power supply unit is used for supplying power to the weighing sensor module, the screen and control unit integrated module and the timer module.
The liquid separation receiver is of a cylindrical structure, an opening is formed in the upper end and an opening is formed in the lower end of the cylindrical structure and is connected with the flow guide pipe, and the flow guide pipe is provided with a flow guide pipe switch.
In another technical solution of the present invention,
a use method of a device for automatically measuring foam liquid separation time specifically comprises the following steps:
step 1: collecting the foam to be detected into a foam collector;
step 2: fixing the foam collector on a bracket according to the actual working condition, and adjusting the height of the foam collector;
and step 3: placing the liquid separation receiver below a flow guide pipe of the foam collector to ensure that the center of the flow guide pipe is aligned with the center of the liquid separation receiver;
and 4, step 4: selecting the percentage of the foam quality to be detected by an operation screen and control unit integration module, calculating the corresponding target quality, and determining the foam quality option of 25% or 50% of foam liquid separation time;
and 5: and finally, after the timer module stops timing, the liquid separation time of the target foam is obtained through the operation screen of the screen and control unit integrated module.
The device for automatically measuring the foam liquid separating time has the advantages that all parts of the foam liquid separating device are smoothly connected, and compared with the traditional foam liquid separating time measuring device, the device for automatically measuring the foam liquid separating time greatly improves the measuring precision of the foam liquid separating time. In addition, a plurality of steps are omitted in the testing process, the target foam quality does not need to be calculated manually, only the operation screen is needed to select, and the control unit can perform automatic calculation, so that the liquid analysis process of starting foam is saved. In the whole testing process, the workload of testing personnel is reduced to a certain extent, the real-time effectiveness of measured data is ensured, the purpose of automation is realized, and the method has certain applicability.
Drawings
FIG. 1 is a schematic structural view of an apparatus for automatically measuring a foam liquid separating time according to the present invention;
FIG. 2 is a structural diagram of information transmission in an apparatus for automatically measuring a foam drainage time according to the present invention;
FIG. 3 is a structural topological diagram of an apparatus for automatically measuring foam liquid separation time according to the present invention;
FIG. 4 is a circuit topology diagram of an apparatus for automatically measuring foam liquid separation time according to the present invention;
FIG. 5 is a flow chart of the operation of an apparatus for automatically measuring the time for foam drainage according to the present invention.
In the figure, 1, a foam collector, 2, a flow guide pipe switch, 3, a flow guide pipe, 4, a liquid separation receiver, 5, a screen and control unit integrated module, 6, a timer module, 7, a bracket;
701. a strut, 702, a base;
8. a load cell module.
Detailed Description
The following describes a device for automatically measuring foam liquid separation time and a method for using the same in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, an apparatus for automatically measuring foam drainage time includes a foam collector 1, a drainage receiver 4, a bracket 7, a screen and control unit integrated module, a load cell module 8, a timer module 6, and a power supply unit.
The apparatus for automatically measuring the foam liquid separating time and the method for using the same according to the present invention will be described in further detail with reference to the following embodiments.
The foam collector 1 is used for containing foam containers to be measured, and when the foam is collected, the foam is required to be uniformly distributed in the collector. The container is made of glass materials, the upper end part of the container is a cylindrical vessel, a flow guide pipe 3 with the aperture of 4mm glass is arranged at the bottom of the container, the tail end of the container is funnel-shaped, and a flow guide pipe switch 2 for controlling the on-off of a flow guide channel is arranged in the middle of the flow guide pipe 3, so that the separated foam mixed liquid can smoothly flow out. The inner wall of the integral container is smooth, and the influence of foam adsorption or breakage on the time precision of liquid separation is prevented.
The liquid separation receiver 4 is used for receiving the foam mixed liquid formed after the liquid separation. Which is a transparent cylindrical container made of glass material and is positioned below a guide pipe 3 at the bottom of a foam collector 1.
The bracket 7 is used for erecting and fixing the foam collector 1 and can adjust the height of the container according to actual conditions, and is made of soldering iron materials. The base 702 is a solid cuboid with uniform texture, and the length, width and height thereof are respectively: 400mm, 250mm, 15 mm. A support rod 701 with the diameter of 5mm and the length of 600mm is nested in the support rod.
The weighing sensor module 8 is used for detecting the total foam mass and the foam mass left after liquid analysis.
The timer module 6 is used for timing the target quality liquid separation time. The start timing signal of the timer is synchronized with the opening signal of the diversion channel in the foam collector. This scheme has greatly improved foam liquid separation time precision.
As shown in fig. 4, the power supply unit is used to supply the required power to the load cell module 8, the control unit control operation of the screen and control unit integrated module 5, the screen display, and the timer module 6.
As shown in fig. 2 and 5, the operation screen and control unit integrated module 5 has a control unit and an operation screen for data calculation, data transmission, and timer disconnection control. The data calculation is performed on the total foam mass collected by the foam collector 1, the total foam mass is obtained through the weighing sensor module 8, and the target value is calculated through analog-to-digital conversion. The data transmission is for data transmission between the timer and the sensor. The control unit controls the timer module 6 to be switched off, when the sensor on the foam receiver 4 reaches a target value, data is transmitted to the control unit, the control unit controls the timer to stop timing, the time is displayed on the operation screen in real time, and the time is the measured foam liquid separation time.
As shown in fig. 3, the weighing sensor module 8 is a detection module of the measuring device, and the detection module mainly detects the total mass of the foam to be measured and the mass remaining after the foam is analyzed out of the liquid, and transmits the detected foam mass data back to the control unit through the data channel, when the draft tube 3 is opened, the foam begins to be analyzed out of the liquid, and the mass data of the remaining foam is transmitted back to the control unit in real time. The operation screen displays required information, such as the liquid separation time, the foam quality and the like. If 25% foam liquid separating time is selected, when the weighing sensor detects that the foam mass is 75% of the original mass, the control unit immediately controls the timer module 6 to stop timing. The timer module 6 is started synchronously with the switch of the diversion channel at the bottom of the foam collector, and the switch-off is controlled by the control unit, but the time information is still transmitted back to the control unit through the data channel. The control unit is a control center of the device and is responsible for data calculation, data transmission and control of each component.
The use method of the device for automatically measuring the foam liquid separating time comprises the following steps:
step 1: the foam to be measured is collected in the foam collector 1, and when the foam is collected, the foam is required to be uniformly distributed in the container and fully contacted with the inner wall of the container, so that no gap exists. This requirement is to improve the accuracy of the foam drainage time.
Step 2: the foam collector 1 is properly fixed on the bracket 7, and the height of the foam collector 1 from the ground is adjusted according to the actual working condition. After the fixation is finished, the total mass of the foam to be detected can be observed in real time through the operation screen.
And step 3: and placing the liquid separation receiver 4 below the flow guide pipe 3 at the bottom of the foam collector 1 to ensure that the pipe diameter center of the flow guide pipe 3 is aligned with the bottom center of the liquid separation receiver 4.
And 4, step 4: and selecting the percentage of the mass of the foam to be detected through the operation screen, and performing corresponding target mass calculation through options of the operation screen. The foam quality options include two choices of "25% foam drainage time" and "50% foam drainage time". Can be freely selected according to actual conditions.
And 5: and (3) opening a flow guide pipe switch 2 at the bottom of the foam collector 1, starting timing by the timer module 6 at the same time, and when the mixed liquid after foam liquid separation reaches the target quality, controlling the timer module 6 to stop timing by the control unit, and displaying the recorded time through the operation screen to obtain the target foam liquid separation time.
The device for automatically measuring the foam liquid separating time can reduce the workload of testing personnel to a greater extent in the whole testing process, also ensures the real-time validity of measured data, and achieves the aim of automation to a certain extent.
Claims (6)
1. The device for automatically measuring the foam liquid separating time is characterized by comprising a foam collector (1), wherein a liquid separating receiver (4) is arranged at the bottom of the foam collector (1), a support (7) is connected to the side wall of the foam collector (1) and is provided with a weighing sensor module (8), the support (7) is provided with a screen and control unit integrated module (5) and a timer module (6), and the device is also provided with a power supply unit;
wherein the foam collector (1) is used for containing foam to be measured; the liquid separation receiver (4) is used for receiving the mixed liquid formed by the foam liquid separation; the timer module (6) is used for timing the target quality liquid separation time; the screen and control unit integration module (5) is used for calculating and transmitting data and controlling the switch of the timer module (6); the weighing sensor module (8) is used for detecting the target mass of the total foam mass after detection and liquid separation, and then transmitting the target mass to the screen and control unit integrated module (5), and the screen and control unit integrated module (5) controls the timer module (6) to stop timing and display the liquid separation time.
2. The device for automatically measuring the foam liquid separating time according to the claim 1, wherein in the step 1, the bracket (7) is used for fixing the foam collector (1) and the liquid separating receiver (4) and adjusting the height of the foam collector (1), the bracket (7) comprises a support rod (701) and a base (702), the screen and control unit integrated module (5) and the timer module (6) are arranged on the support rod (701), the weighing sensor module (8) is arranged between the support rod (701) and the foam collector (1), and the liquid separating receiver (4) is arranged on the base (702).
3. The device for automatically measuring foam bleeding time according to claim 1, wherein the support (7) is made of a soldering iron material.
4. The device for automatic measurement of foam drainage time according to claim 1, wherein the power supply unit is used for supplying power to the load cell module (8), the screen and control unit integrated module (5) and the timer module (6).
5. The device for automatically measuring the foam liquid separating time according to claim 1, wherein the liquid separating receiver (4) is a cylindrical structure, the upper end of the cylindrical structure is open, the lower end of the cylindrical structure is open, the cylindrical structure is connected with the flow guide pipe (3), and the flow guide pipe (3) is provided with a flow guide pipe switch (2).
6. The device for automatically measuring the foam liquid separation time as claimed in claim 1, wherein the use method of the device for automatically measuring the foam liquid separation time is characterized by comprising the following steps:
step 1: collecting foam to be detected into a foam collector (1);
step 2: fixing the foam collector (1) on the bracket (7) according to the actual working condition, and adjusting the height of the foam collector (1);
and step 3: the liquid separation receiver (4) is arranged below the guide pipe (3) of the foam collector (1) to ensure that the center of the guide pipe (3) is aligned with the center of the liquid separation receiver (4);
and 4, step 4: selecting the percentage of the foam quality to be detected through an operation screen and control unit integration module (5), calculating the corresponding target quality, and determining the foam quality option of 25% or 50% of foam liquid separation time;
and 5: and (3) opening a switch of the draft tube switch (2), simultaneously opening the screen and the control unit integrated module (5), and finally obtaining the liquid separation time of the target foam through an operation screen of the screen and the control unit integrated module (5) after the timer module (6) stops timing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110575729.1A CN113376051A (en) | 2021-05-25 | 2021-05-25 | Device for automatically measuring foam liquid separation time and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110575729.1A CN113376051A (en) | 2021-05-25 | 2021-05-25 | Device for automatically measuring foam liquid separation time and using method thereof |
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| CN113376051A true CN113376051A (en) | 2021-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820158A (en) * | 2021-09-30 | 2021-12-21 | 应急管理部天津消防研究所 | Integrated foam performance detection box and detection method |
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2021
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Application publication date: 20210910 |