CN108398203B - Liquid resistance testing device and liquid resistance testing system - Google Patents
Liquid resistance testing device and liquid resistance testing system Download PDFInfo
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- CN108398203B CN108398203B CN201810458220.7A CN201810458220A CN108398203B CN 108398203 B CN108398203 B CN 108398203B CN 201810458220 A CN201810458220 A CN 201810458220A CN 108398203 B CN108398203 B CN 108398203B
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- 239000007788 liquid Substances 0.000 title claims abstract description 233
- 238000012360 testing method Methods 0.000 title claims abstract description 121
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000012528 membrane Substances 0.000 claims description 40
- 238000003860 storage Methods 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 description 8
- 230000008520 organization Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a liquid resistance testing device and a liquid resistance testing system, and relates to the technical field of liquid resistance testing. The liquid resistance testing device comprises a testing chamber, a preset film, a liquid inlet pipeline and a testing mechanism. The preset film is arranged in the test chamber, the test chamber is divided into a first cavity and a second cavity by the preset film, the liquid inlet pipeline is communicated with the first cavity, the liquid inlet pipeline is used for filling liquid into the first cavity, the test mechanism is respectively connected with the liquid inlet pipeline and the second cavity, and the test mechanism is used for detecting the pressure of liquid in the liquid inlet pipeline when the second cavity is immersed in the liquid. Compared with the prior art, the liquid resistance testing device provided by the invention has the advantages that the liquid inlet pipeline communicated with the first cavity and the testing mechanism connected with the second cavity are adopted, so that the liquid resistance pressure can be accurately measured, the operation is convenient, the testing efficiency is high, the liquid resistance testing device is not easily influenced by external environment, the practicability is high, and the cost performance is high.
Description
Technical Field
The invention relates to the technical field of liquid resistance testing, in particular to a liquid resistance testing device and a liquid resistance testing system.
Background
Microporous membranes have many applications, such as in solid-liquid separation where a liquid is passed through the membrane while a solid is trapped on the membrane surface, to separate the solid from the liquid, and in gas-liquid separation where a gas is passed through the membrane while a liquid is trapped on the membrane surface, to separate the gas from the liquid. Microporous membranes block the passage of liquids through the membrane, known as blocking liquids, and liquids that are water, known as blocking water. The liquid resistance is a separation function of the lyophobic microporous membrane, and the liquid resistance can be tested and evaluated by adopting a liquid resistance testing device. Each filter membrane has different liquid blocking capacities, when the pressure is continuously increased and reaches the tension of the test liquid in the larger hole on the filter membrane, the test liquid enters the hole of the filter membrane and flows out from the other end of the hole, namely passes through the filter membrane, and the pressure can reflect the strength of the liquid blocking capacities.
The inventor researches and discovers that the conventional testing device for the liquid resistance of the filter membrane has a complex structure, low testing efficiency, is easily influenced by external environment factors, has low accuracy of a measuring result and poor user experience.
Therefore, it is important to design and manufacture a liquid resistance testing device and a liquid resistance testing system with accurate measurement, especially in industrial production.
Disclosure of Invention
The invention aims to provide a liquid resistance testing device which is simple in structure, convenient to operate, high in testing efficiency, not easy to be influenced by external environment, high in accuracy of a measuring result, strong in practicability and high in cost performance.
The invention further aims to provide a liquid resistance testing system which is simple in structure, convenient to operate, high in testing efficiency, not easy to be influenced by external environment, high in accuracy of measuring results, strong in practicability, high in cost performance and good in user experience.
The invention is realized by adopting the following technical scheme.
The utility model provides a hinder liquid testing arrangement, includes the test chamber, predetermine membrane, feed liquor pipeline and accredited testing organization, predetermine the membrane and install in the test chamber, predetermine the membrane and separate the test chamber and form first cavity and second cavity, feed liquor pipeline and first cavity intercommunication, feed liquor pipeline are used for filling liquid to first cavity, accredited testing organization is connected with feed liquor pipeline and second cavity respectively, accredited testing organization is used for detecting the pressure of the interior liquid of feed liquor pipeline when the second cavity soaks liquid.
Further, the testing mechanism comprises a liquid detector, a pressure sensor and a controller, wherein the liquid detector is installed in the second cavity and is attached to the preset film, the liquid detector is connected with the controller and is used for sending a control signal to the controller when the second cavity is detected to be immersed in liquid, the controller is connected with the pressure sensor, the pressure sensor is installed on the liquid inlet pipeline and is used for detecting the pressure of the liquid in the liquid inlet pipeline, and the controller is used for reading pressure data of the pressure sensor when receiving the control signal.
Further, the liquid detector comprises a first conductive element, a second conductive element and a control element, wherein the first conductive element is installed in the second cavity and is attached to the preset film, the second conductive element is installed in the liquid inlet pipeline, the first conductive element and the second conductive element are both connected with the control element, the control element is connected with the controller, and the control element is used for sending a control signal to the controller when the first conductive element and the second conductive element are conducted.
Further, the testing mechanism also comprises a memory, wherein the memory is connected with the controller and is used for storing pressure data.
Further, the testing chamber comprises a box body, a box cover and a fixing piece, wherein the box body is detachably connected with the box cover through the fixing piece, and the preset film is arranged between the box body and the box cover.
Further, a first cavity is formed between the box body and the preset film, one side, away from the preset film, of the box body is connected with the liquid inlet pipeline, and a second cavity is formed between the box cover and the preset film.
Further, the liquid resistance testing device further comprises a liquid storage tank, and the liquid storage tank is connected with one end, far away from the first cavity, of the liquid inlet pipeline.
Further, the liquid resistance testing device further comprises an air inlet pipeline, wherein the air inlet pipeline is connected with one end, far away from the liquid inlet pipeline, of the liquid storage tank, and the air inlet pipeline is used for outputting gas so as to press liquid in the liquid storage tank into the liquid inlet pipeline.
Further, the liquid resistance testing device further comprises a gas discharging pipe valve, the gas discharging pipe valve is connected with the liquid storage tank, the gas discharging pipe valve is in communication connection with the testing mechanism, and the gas discharging pipe valve is used for being opened when the testing mechanism detects that the second cavity is immersed in liquid.
The utility model provides a hinder liquid test system, including frame and hinder liquid testing arrangement, hinder liquid testing arrangement installs in the frame, hinder liquid testing arrangement includes the test chamber, predetermine the membrane, feed liquor pipeline and accredited testing organization, predetermine the membrane and install in the test chamber, predetermine the membrane and separate the test chamber and form first cavity and second cavity, feed liquor pipeline and first cavity intercommunication, feed liquor pipeline is used for filling liquid to first cavity, accredited testing organization is connected with feed liquor pipeline and second cavity respectively, accredited testing organization is used for detecting the pressure of liquid in the feed liquor pipeline when the second cavity soaks liquid.
The liquid resistance testing device and the liquid resistance testing system provided by the invention have the following beneficial effects:
According to the liquid resistance testing device provided by the invention, liquid is input into the first cavity through the liquid inlet pipeline, after the first cavity is filled with the liquid, the liquid and the preset film generate mutual pressure, when the pressure is continuously increased and the tension of the liquid in the larger hole on the preset film is overcome, the liquid flows out of the hole and enters the second cavity, and at the moment, the pressure of the liquid in the liquid inlet pipeline is the liquid resistance pressure. Compared with the prior art, the liquid resistance testing device provided by the invention has the advantages that the liquid inlet pipeline communicated with the first cavity and the testing mechanism connected with the second cavity are adopted, so that the liquid resistance pressure can be accurately measured, the operation is convenient, the testing efficiency is high, the liquid resistance testing device is not easily influenced by external environment, the practicability is high, and the cost performance is high.
The liquid resistance testing system provided by the invention comprises the liquid resistance testing device, has a simple structure, can accurately measure the liquid resistance pressure, is convenient to operate, has high testing efficiency, is not easily influenced by external environment, and has the advantages of strong practicability, high cost performance and good user experience.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a liquid resistance test system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a liquid resistance testing device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a testing mechanism in a liquid resistance testing device according to an embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a test chamber in a liquid-blocking testing device according to an embodiment of the present invention.
Icon: 10-a liquid resistance testing system; 100-a liquid resistance testing device; 110-a test chamber; 111-a first cavity; 112-a second cavity; 113-a box; 114-lid; 115-a fixing member; 120-preset film; 130-a liquid inlet pipeline; 140-a testing mechanism; 141-a liquid detector; 1411-a first conductive element; 1412-conductive plates; 1413-a second conductive element; 1415-control element; 143-a pressure sensor; 145-a controller; 147-memory; 150-a liquid storage tank; 151-inlet pipe; 153-discharge duct; 160-an air inlet pipeline; 170-a gas discharge pipe valve; 200-frame.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "inner", "outer", "upper", "lower", "horizontal", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. Features of the embodiments described below may be combined with each other without conflict.
Examples
Referring to fig. 1, an embodiment of the present invention provides a liquid blocking testing system 10 for detecting the liquid blocking force of a filter membrane. The device has the advantages of simple structure, convenient operation, high testing efficiency, difficult influence of external environment, high accuracy of measuring results, strong practicability, high cost performance and good user experience. The liquid resistance testing system 10 includes a rack 200 and a liquid resistance testing device 100. The liquid resistance testing device 100 is installed on the rack 200, the rack 200 supports the liquid resistance testing device 100 and can drive the liquid resistance testing device 100 to move, transportation is facilitated, and the liquid resistance testing device 100 is used for detecting liquid resistance pressure of a filter membrane.
Referring to fig. 2, the liquid blocking testing device 100 includes a testing chamber 110, a preset membrane 120, a liquid inlet pipe 130, a testing mechanism 140, a liquid storage tank 150, an air inlet pipe 160 and an air bleed pipe valve 170. In this embodiment, the preset membrane 120 is the filter membrane to be tested. The pre-set membrane 120 is installed in the test chamber 110, the pre-set membrane 120 partitions the test chamber 110 to form a first cavity 111 and a second cavity 112, the pre-set membrane 120 is provided with a plurality of micro holes (not shown), and the first cavity 111 is communicated with the second cavity 112 through the micro holes.
The liquid inlet pipeline 130 is communicated with the first cavity 111, the liquid inlet pipeline 130 is used for filling liquid into the first cavity 111, acting force is generated on the preset membrane 120 after the liquid fills the first cavity 111, meanwhile, reactive force is generated on the liquid by the preset membrane 120, the acting force and the reactive force become larger simultaneously along with the increase of the liquid, at the moment, the pressure of the liquid in the first cavity 111 is increased, and the pressure in the liquid inlet pipeline 130 is increased. As the reaction force increases and reaches a tension force that overcomes the liquid in the larger micro-holes in the pre-set membrane 120, the liquid flows out of the holes into the second cavity 112.
The testing mechanism 140 is connected to the liquid inlet pipe 130 and the second cavity 112, and the testing mechanism 140 is used for detecting the pressure of the liquid in the liquid inlet pipe 130 when the second cavity 112 is immersed in the liquid, where the pressure is the hydraulic resistance of the preset membrane 120. The liquid storage tank 150 is connected with the liquid inlet pipeline 130, the liquid storage tank 150 is used for storing liquid, the air inlet pipeline 160 is connected with the liquid storage tank 150, and the air inlet pipeline 160 is used for pressing the liquid in the liquid storage tank 150 into the liquid inlet pipeline 130 and then sending the liquid into the first cavity 111. The air bleed valve 170 is connected to the liquid storage tank 150, and the air bleed valve 170 is used for communicating the liquid storage tank 150 with the outside when the second cavity 112 is immersed in the liquid, so as to release the pressure in the liquid storage tank 150, and the air inlet pipeline 160 can not generate pressure on the liquid in the liquid storage tank 150.
In the present embodiment, the liquid is water, the water is stored in the liquid storage tank 150, and the water is input into the first cavity 111 through the liquid inlet pipe 130, but the type of the liquid is not limited thereto.
It is noted that the liquid storage tank 150 is connected to an end of the liquid inlet pipe 130 away from the first cavity 111 to input the liquid into the first cavity 111. The air inlet pipe 160 is connected to an end of the liquid storage tank 150 away from the liquid inlet pipe 130, and the air inlet pipe 160 is used for outputting air to press the liquid in the liquid storage tank 150 into the liquid inlet pipe 130. A gas bleed valve 170 is connected to the reservoir 150, the gas bleed valve 170 being in communication with the testing mechanism 140, the gas bleed valve 170 being adapted to open when the testing mechanism 140 detects that the second cavity 112 is immersed in liquid to release the gas pressure within the reservoir 150 such that the liquid is no longer under pressure.
In this embodiment, the liquid storage tank 150 is provided with an inlet pipe 151 for inputting liquid into the liquid storage tank 150 and a discharge pipe 153 for discharging the liquid in the liquid storage tank 150.
Referring to fig. 3, the testing mechanism 140 includes a liquid detector 141, a pressure sensor 143, a controller 145, and a memory 147. The liquid detector 141 is installed in the second cavity 112 and is adhered to the preset film 120, the liquid detector 141 is connected with the controller 145, and the liquid detector 141 is used for sending a control signal to the controller 145 when the second cavity 112 is detected to be immersed in liquid. The controller 145 is connected with the pressure sensor 143, the pressure sensor 143 is installed on the liquid inlet pipeline 130, the pressure sensor 143 is used for detecting the pressure of the liquid in the liquid inlet pipeline 130, and the controller 145 is used for reading the pressure data of the pressure sensor 143 when receiving the control signal, wherein the pressure data is the liquid blocking pressure of the preset membrane 120. The memory 147 is connected to the controller 145, and the memory 147 is used for storing pressure data to record the hydraulic resistance of the preset membrane 120.
The liquid detector 141 includes a first conductive element 1411, a second conductive element 1413, and a control element 1415. The first conductive element 1411 is installed in the second cavity 112 and is adhered to the preset film 120, and when the liquid is immersed through the preset film 120 and enters the second cavity 112, the liquid is adhered to the first conductive element 1411. The second conductive element 1413 is installed in the liquid inlet pipe 130, the first conductive element 1411 and the second conductive element 1413 are connected with the control element 1415, and the control element 1415 is used for detecting whether the first conductive element 1411 and the second conductive element 1413 are conducted. The control element 1415 is connected to the controller 145, and the control element 1415 is configured to send a control signal to the controller 145 when the first conductive element 1411 and the second conductive element 1413 are conductive.
Referring to fig. 4, in the present embodiment, the first conductive element 1411 is provided with a conductive plate 1412, the conductive plate 1412 is attached to the preset film 120, and the conductive plate 1412 is used for contacting with liquid. The conductive plate 1412 is provided with a slot (not shown) for passing a liquid therethrough.
The test chamber 110 includes a case 113, a cover 114, and a holder 115. The case 113 is detachably coupled to the cap 114 through a fixing member 115, and the pre-set film 120 is installed between the case 113 and the cap 114. In this embodiment, the cover 114 is disposed above the case 113, and the preset film 120 is horizontally disposed. A first cavity 111 is formed between the box body 113 and the preset membrane 120, one side, away from the preset membrane 120, of the box body 113 is connected with a liquid inlet pipeline 130, the liquid inlet pipeline 130 is vertically arranged, and a second cavity 112 is formed between the box cover 114 and the preset membrane 120.
According to the liquid resistance testing device 100 provided by the embodiment of the invention, the liquid is input into the first cavity 111 through the liquid inlet pipeline 130, when the first cavity 111 is filled with the liquid, the liquid and the preset membrane 120 generate mutual pressure, when the pressure is continuously increased and the tension of the liquid in the larger hole of the preset membrane 120 is overcome, the liquid flows out of the hole and enters the second cavity 112, and at the moment, the pressure of the liquid in the liquid inlet pipeline 130 is the liquid resistance pressure. Compared with the prior art, the liquid resistance testing device 100 provided by the invention can accurately measure the liquid resistance pressure due to the adoption of the liquid inlet pipeline 130 communicated with the first cavity 111 and the testing mechanism 140 connected with the second cavity 112, and has the advantages of convenience in operation, high testing efficiency, high practicality, high cost performance, practicability and good user experience, and is not easily influenced by external environment, so that the liquid resistance testing system 10 is practical and efficient.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The liquid resistance testing device is characterized by comprising a testing chamber, a preset membrane, a liquid inlet pipeline and a testing mechanism, wherein the preset membrane is arranged in the testing chamber, the preset membrane separates the testing chamber to form a first cavity and a second cavity, the liquid inlet pipeline is communicated with the first cavity, the liquid inlet pipeline is used for filling liquid into the first cavity, the testing mechanism is respectively connected with the liquid inlet pipeline and the second cavity, and the testing mechanism is used for detecting the pressure of the liquid in the liquid inlet pipeline when the second cavity is immersed in the liquid;
The testing mechanism comprises a liquid detector, a pressure sensor and a controller, wherein the liquid detector is arranged in the second cavity and is attached to the preset film, the liquid detector is connected with the controller, the liquid detector is used for sending a control signal to the controller when detecting that the second cavity is immersed in liquid, the controller is connected with the pressure sensor, the pressure sensor is arranged on the liquid inlet pipeline, the pressure sensor is used for detecting the pressure of the liquid in the liquid inlet pipeline, and the controller is used for reading the pressure data of the pressure sensor when receiving the control signal;
The liquid detector comprises a first conductive element, a second conductive element and a control element, wherein the first conductive element is installed in the second cavity and is attached to the preset film, the second conductive element is installed in the liquid inlet pipeline, the first conductive element and the second conductive element are both connected with the control element, the control element is connected with the controller, and the control element is used for sending a control signal to the controller when the first conductive element and the second conductive element are conducted;
The test mechanism further comprises a memory, wherein the memory is connected with the controller and is used for storing the pressure data.
2. The liquid resistance testing device according to claim 1, wherein the testing chamber comprises a box body, a box cover and a fixing piece, the box body is detachably connected with the box cover through the fixing piece, and the preset film is installed between the box body and the box cover.
3. The liquid resistance testing device according to claim 2, wherein the first cavity is formed between the box body and the preset film, one side of the box body away from the preset film is connected with the liquid inlet pipeline, and the second cavity is formed between the box cover and the preset film.
4. The liquid resistance testing device according to claim 1, further comprising a liquid storage tank connected to an end of the liquid inlet pipe remote from the first cavity.
5. The liquid resistance testing device according to claim 4, further comprising an air inlet pipe connected to an end of the liquid storage tank remote from the liquid inlet pipe, the air inlet pipe being configured to output a gas to press the liquid in the liquid storage tank into the liquid inlet pipe.
6. The liquid resistance testing device of claim 5, further comprising a bleed valve connected to the liquid reservoir, the bleed valve being in communication with the testing mechanism, the bleed valve being configured to open when the testing mechanism detects that the second cavity is immersed in liquid.
7. A liquid resistance testing system comprising a frame and a liquid resistance testing device according to any one of claims 1 to 6, said liquid resistance testing device being mounted on said frame.
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| CN201810458220.7A CN108398203B (en) | 2018-05-14 | 2018-05-14 | Liquid resistance testing device and liquid resistance testing system |
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| CN201810458220.7A CN108398203B (en) | 2018-05-14 | 2018-05-14 | Liquid resistance testing device and liquid resistance testing system |
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| CN108398203B true CN108398203B (en) | 2024-06-04 |
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