CN203083898U - Vacuum water absorption testing system of building energy-saving materials - Google Patents
Vacuum water absorption testing system of building energy-saving materials Download PDFInfo
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- CN203083898U CN203083898U CN 201320061306 CN201320061306U CN203083898U CN 203083898 U CN203083898 U CN 203083898U CN 201320061306 CN201320061306 CN 201320061306 CN 201320061306 U CN201320061306 U CN 201320061306U CN 203083898 U CN203083898 U CN 203083898U
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Abstract
The utility model relates to a vacuum water absorption testing system of building energy-saving materials. The vacuum water absorption testing system comprises a container, a vacuum pump, a pressure sensor, a controller and a timer which is used for holding the lower limiting value of vacuum degree of the container for a period of time, wherein a sucking port and an exhaust port with a first electromagnetic valve are formed in the container; the vacuum pump is connected with the sucking port through a pipeline; the upper and lower limiting values for testing the vacuum degree of a tested sample are set through the pressure sensor; the controller is used for controlling the vacuum pump, the first and second electromagnetic valves to be opened and closed according to the signal of the pressure sensor; and the timer is connected with the controller. When the vacuum water absorption testing system is used for testing, under the cooperation of the vacuum pump, the pressure sensor, the timer and the controller, the vacuum degree in the container is stable, and the working conditions of vacuuming, pressure holding and depressurizing are automatically accomplished, so that the operation is convenient and rapid, and the air of the tested sample can be exhausted as much as possible under the condition that the tested sample is not damaged, so that the water absorption of the building energy-saving materials can be accurately measured, and the requirements of the test on the water absorption of the building energy-saving materials are met.
Description
Technical field
The utility model relates to a kind of water-intake rate test macro, specifically refers to a kind of energy-saving building materials vacuum dehydration rate test macro.
Background technology
Energy crisis has become one of the focus of world attention at present, and wherein building energy conservation is as grabbing the great attention that importance of energy conservation has been subjected to people from the life source.And building materials water-intake rate (or vacuum dehydration rate) is one of key content of decision building energy conservation effect, also is one of core content of acceptance criteria.Therefore its effective method of testing and equipment research have far-reaching social effect.
Proving installation about energy-saving building materials (for example PF rubber and plastic heat-preservation cotton etc.) vacuum dehydration rate, number of research projects has been done by lot of domestic and international scientific research institution and administrative authority, proposing and developed various test and relevant apparatus, is CN101025394A " method of testing of a kind of relative density of aggregate and water-intake rate and instrument " as the Chinese patent publication number.But diversity that building materials has and singularity separately, these method of testings and the equipment that make have many restrictions in the use.So in actual test process, basically all be the vacuum test device of using other material (as Ceramic Tiles, asphalt etc.), gathering together the vacuum dehydration rate that detects energy-saving building materials, but in use there is a lot of problems, as vacuum tightness can not stablize, the time is uncontrollable etc., these all can not satisfy the request for utilization of energy-saving building materials vacuum dehydration rate test.
Summary of the invention
Technical problem to be solved in the utility model is the present situation at prior art, and a kind of energy-saving building materials vacuum dehydration rate test macro of testing the vacuum dehydration rate easily and accurately is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of energy-saving building materials vacuum dehydration rate test macro is characterized in that including:
One can hold the container of sample, has bleeding point and relief port on this container, and first solenoid valve that this container is carried out release wherein is installed on the relief port;
One vacuum pump, this vacuum pump is connected with the bleeding point of said vesse by pipeline, and second solenoid valve is installed on the described pipeline;
One can detect the pressure transducer of the vacuum tightness in the described container, and this pressure transducer can be set higher limit and the lower limit that sample is tested required vacuum tightness;
One controls the controller that above-mentioned vacuum pump and first, second solenoid valve open and close according to the signal of above-mentioned pressure transducer, the input end of this controller connects the output terminal of above-mentioned pressure transducer, and the output terminal of this controller connects described vacuum pump and first, second solenoid valve; And
One can make described container keep the timer of vacuum tightness lower limit a period of time, and this timer links to each other with above-mentioned controller.
As the further improvement of such scheme, be provided with the thing of keeping out that sample can not had in the entry in the described container, sample is immersed in the water fully, with the accuracy of further guaranteeing to test.
The above-mentioned thing of keeping out can be designed to the baffle plate that matches with container inner wall, but further preferably, the described thing of keeping out is designed to ∩ shape structure, keep out on the end face of thing and the side at this and to have bleeder vent, sample can be strapped in like this and keep out within the thing, and escaping gas is taken away smoothly.
Above-mentioned pressure transducer can adopt intelligent pressure unit, or pressure switch, is that described pressure transducer is an electro connecting pressure gauge but relative cost hangs down the scheme of some.
In above-mentioned each scheme, the structure of container can adopt following form: described container includes cylindrical shell and is arranged on the top cover of cylindrical shell oral area, is provided with seal between described top cover and cylindrical shell oral area.Water filling simultaneously for convenience and discharging water is equipped with water injection valve, and bottom described cylindrical shell water drain valve is installed on described top cover.
Compared with prior art, because the utility model can provide vacuum environment for tested energy-saving building materials, simultaneously under the cooperation of pressure transducer, timer and controller, make vacustat in the container, and can finish automatically vacuumize, the operating mode of pressurize and release, thereby the utility model is easy to operate, quick, and can make sample deaeration as much as possible under situation about not wrecking, so can measure the water-intake rate of energy-saving building materials exactly, can satisfy the test needs of energy-saving building materials water-intake rate.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, this energy-saving building materials vacuum dehydration rate test macro includes container 1, vacuum pump 2, pressure transducer 3 and controller 4, wherein container 1 includes the cylindrical shell 11 and the top cover 12 that is arranged on the acrylic plastic material of cylindrical shell oral area of stainless steel, between top cover and cylindrical shell oral area, be provided with O-ring seal, and be coated with vaseline in both contacts site, make to form a cavity volume that can hold sample and have better sealing property between top cover 12 and the cylindrical shell 11.In the present embodiment, having certain this bleeding point of bleeding point 13(on the sidewall of above-mentioned cylindrical shell 1 also can open on top cover), on top cover, have relief port 14, the first solenoid valve V2 that this container is carried out release is installed on the relief port, water filling simultaneously for convenience and discharging water, water injection valve V1 is installed on top cover, water drain valve V5 is installed in the cylindrical shell bottom.
In the present embodiment, above-mentioned vacuum pump 2 is a water ring vacuum pump, and this vacuum pump 2 is connected with the bleeding point 13 of said vesse by pipeline, and the second solenoid valve V3 is installed on the described pipeline.According to the scene needs are installed, above-mentioned pipeline can be made up of first pipeline that links to each other with bleeding point, second pipeline that is connected with vacuum pump 2 and the expansion joint 5 that is connected between first, second pipeline, the second solenoid valve V3 is installed on first pipeline, and the 3rd solenoid valve V4 is installed on second pipeline.Start vacuum pump like this, just can vacuumize container.
Above-mentioned pressure transducer 3 is installed on the top cover 12, and it can detect the vacuum tightness in the said vesse, and in the present embodiment, it adopts electric contact point pressure gauge, can set higher limit and lower limit that sample is tested required vacuum tightness.Certainly, as required, can adopt pressure unit or pressure switch to realize the measurement and the setting of vacuum tightness.
Above-mentioned controller 4 can be controlled the keying of above-mentioned vacuum pump 2 and the first solenoid valve V2, the second solenoid valve V3 and the 3rd solenoid valve V4 according to the signal of above-mentioned pressure transducer 3, as required, this controller can adopt Programmable Logic Controller, microcomputer, single-chip microcomputer or relay circuit, promptly the input end of this controller 4 connects the output terminal of above-mentioned pressure transducer 3, the output terminal of this controller 4 connects vacuum pump 2 and first, second, third solenoid valve, dispose start button and stop button simultaneously, this start button is connected the input end of this controller with stop button.These can be routine techniquess all, no longer are described in detail at this.
Dispose one simultaneously and can make container 1 keep the timer 6 of vacuum tightness lower limit a period of time, when the controller employing can be compiled controller, timer was parts built-in in this Programmable Logic Controller; When controller adopted relay circuit, timer was the conventional time relay.
Keep out thing 7 for above-mentioned sample being immersed in the water better, in said vesse, being provided with.Preferably, this is kept out thing and is designed to ∩ shape structure, keeps out on the end face of thing and the side having bleeder vent 71 at this, can discharge escaping gas in the sample apace again like this when reaching sample and being immersed in the water.
During test, sample is numbered and weighs for the first time, obtain initial weight M1; Then open top cover, above-mentioned sample is placed on keeps out in the thing, and inject a certain amount of clear water, guarantee that sample is immersed in the water fully by water drain valve; Build top cover then, then connect pipeline, regulate the upper limit value and lower limit value of electro connecting pressure gauge on demand, and configure the delay time of timer; Energized then, the started by press button is started working the vacuum pump energized; When the vacuum tightness in the container arrived the higher limit of the vacuum tightness of setting, vacuum pump quit work, and timer picks up counting, and after timing finished, first solenoid valve was opened, and container is carried out release; Open top cover then, take out sample, dab sample, dry the moisture of sample surfaces, and then weigh, obtain eventually heavy M2 with rag; At last, according to vacuum dehydration rate formula ρ=100(M2-M1)/M1(%), calculate vacuum dehydration rate ρ (%).
In above-mentioned timing course, if when causing pressure in the container to be lower than the low pressure limit value that electro connecting pressure gauge sets owing to reason such as poorly sealed, timer can stop and resetting automatically, controller can start vacuum pump again simultaneously, vacuum tightness in container reaches the higher limit of setting, and at this moment timer can carry out reclocking automatically.Obviously, adopt such system, can make the vacuum tightness in the container highly stable, the time is controlled, so can reach the purpose of accurate test architecture energy-saving material vacuum dehydration rate.
Claims (6)
1. energy-saving building materials vacuum dehydration rate test macro is characterized in that including:
One can hold the container of sample, has bleeding point and relief port on this container, and first solenoid valve that this container is carried out release wherein is installed on the relief port;
One vacuum pump, this vacuum pump is connected with the bleeding point of said vesse by pipeline, and second solenoid valve is installed on the described pipeline;
One can detect the pressure transducer of the vacuum tightness in the described container, and this pressure transducer can be set higher limit and the lower limit that sample is tested required vacuum tightness;
One controls the controller that above-mentioned vacuum pump and first, second solenoid valve open and close according to the signal of above-mentioned pressure transducer, the input end of this controller connects the output terminal of above-mentioned pressure transducer, and the output terminal of this controller connects described vacuum pump and first, second solenoid valve; And
One can make described container keep the timer of vacuum tightness lower limit a period of time, and this timer links to each other with above-mentioned controller.
2. energy-saving building materials vacuum dehydration rate test macro according to claim 1 is characterized in that: be provided with the thing of keeping out that sample can not had in the entry in the described container.
3. energy-saving building materials vacuum dehydration rate test macro according to claim 2 is characterized in that: the described thing of keeping out is designed to ∩ shape structure, keeps out on the end face of thing and the side having bleeder vent at this.
4. according to claim 1 or 2 or 3 described energy-saving building materials vacuum dehydration rate test macros, it is characterized in that: described pressure transducer is electro connecting pressure gauge, pressure unit or pressure switch.
5. according to claim 1 or 2 or 3 described energy-saving building materials vacuum dehydration rate test macros, it is characterized in that: described container includes cylindrical shell and is arranged on the top cover of cylindrical shell oral area, is provided with seal between described top cover and cylindrical shell oral area.
6. energy-saving building materials vacuum dehydration rate test macro according to claim 5 is characterized in that: on the described top cover water injection valve is installed, and in described cylindrical shell bottom water drain valve is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061306 CN203083898U (en) | 2013-01-30 | 2013-01-30 | Vacuum water absorption testing system of building energy-saving materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061306 CN203083898U (en) | 2013-01-30 | 2013-01-30 | Vacuum water absorption testing system of building energy-saving materials |
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| Publication Number | Publication Date |
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| CN203083898U true CN203083898U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320061306 Expired - Fee Related CN203083898U (en) | 2013-01-30 | 2013-01-30 | Vacuum water absorption testing system of building energy-saving materials |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964892A (en) * | 2015-07-15 | 2015-10-07 | 济南四建（集团）有限责任公司 | Method for measuring pressure water absorption rate of haycite and method for reducing pressure slump loss of haycite concrete pump |
| CN107656038A (en) * | 2017-10-27 | 2018-02-02 | 天津建仪机械设备检测有限公司 | High sealing water absorption rate detection means |
| CN108088954A (en) * | 2017-11-30 | 2018-05-29 | 郑州宇通重工有限公司 | A kind of used in new energy vehicles high-voltage wiring harness waterproof material experimental rig |
| CN110361289A (en) * | 2019-04-30 | 2019-10-22 | 天津津贝尔建筑工程试验检测技术有限公司 | A kind of measurement rubber and plastic closed-cell materials vacuum dehydration rate experimental rig |
| CN112525759A (en) * | 2020-11-23 | 2021-03-19 | 中建商品混凝土有限公司 | Device and method for rapidly testing pressure water absorption ratio of lightweight aggregate |
-
2013
- 2013-01-30 CN CN 201320061306 patent/CN203083898U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964892A (en) * | 2015-07-15 | 2015-10-07 | 济南四建（集团）有限责任公司 | Method for measuring pressure water absorption rate of haycite and method for reducing pressure slump loss of haycite concrete pump |
| CN104964892B (en) * | 2015-07-15 | 2017-11-07 | 济南四建（集团）有限责任公司 | A kind of assay method of haydite pressure water absorption rate and the method for the lower slump-loss of reduction haydite concrete pump pressure |
| CN107656038A (en) * | 2017-10-27 | 2018-02-02 | 天津建仪机械设备检测有限公司 | High sealing water absorption rate detection means |
| CN108088954A (en) * | 2017-11-30 | 2018-05-29 | 郑州宇通重工有限公司 | A kind of used in new energy vehicles high-voltage wiring harness waterproof material experimental rig |
| CN110361289A (en) * | 2019-04-30 | 2019-10-22 | 天津津贝尔建筑工程试验检测技术有限公司 | A kind of measurement rubber and plastic closed-cell materials vacuum dehydration rate experimental rig |
| CN112525759A (en) * | 2020-11-23 | 2021-03-19 | 中建商品混凝土有限公司 | Device and method for rapidly testing pressure water absorption ratio of lightweight aggregate |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20160130 |
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| EXPY | Termination of patent right or utility model |