CN110726659A - Multi-factor composite environmental test chamber, humidity measuring device and humidity measuring method - Google Patents
Multi-factor composite environmental test chamber, humidity measuring device and humidity measuring method Download PDFInfo
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Abstract
A multi-factor composite environmental test chamber, a humidity measuring device and a humidity measuring method are provided, wherein the humidity measuring device comprises a humidity measuring system, a transmission device and an automatic control device; when measuring the humidity, the humidity measuring device is arranged on the composite environmental test chamber. The humidity measuring system with the two sealing partition plates is controlled to enter and exit the composite environmental test chamber through the transmission device, so that the humidity measuring device is effectively isolated from polluted air in the composite environmental test chamber under a non-humidity measuring state, automatic temperature control and automatic water supplement are realized by the humidity measuring device, and the humidity in the composite environmental test chamber can be accurately measured.
Description
Technical Field
The invention relates to a humidity measuring device of an environmental test chamber, in particular to a humidity measuring device of a multi-factor composite environmental test chamber and a measuring method thereof.
Background
The composite environmental test chamber is a test device integrating various environmental test functions (such as salt spray test, damp-heat test, illumination test and drying test), and compared with the single-function environmental test chamber, the composite environmental test chamber has the characteristics of test environment diversity, better correlation with actual use environment and the like, so that the composite environmental test chamber is increasingly applied.
In a complex environmental test chamber with a humidity adjusting function, a humidity sensor is required to acquire a humidity value. The current common measurement methods are wet-dry bulb and wet-electronic methods. Electronic moisture measurement is interfered by impurities and oil stains in air, measurement is needed in a pure environment, and the electronic moisture measurement is not suitable for a high-humidity measurement environment due to the fact that materials are used per se. In contrast, the dry and wet ball testing method is practical and accurate, and does not age under high humidity conditions, so that the method is a mainstream humidity measuring means of the existing composite environment testing equipment.
However, the dry and wet ball method is directly applied to the composite environmental test chamber, and has the following problems: (1) when the composite environmental test chamber is used for corrosion tests, such as salt spray tests, the corrosion atmosphere can pollute wet ball gauze, so that the humidity measurement value is higher. (2) When the composite environmental test chamber is used for a drying test, the wet ball gauze can be quickly hardened, so that the humidity measurement value is low.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a humidity measuring device and a humidity measuring method for a multi-factor composite environmental test chamber suitable for use in polluted, high-humidity, dry, and illuminated environments. The humidity measuring system with the two sealing partition plates is controlled to enter and exit the composite environmental test chamber through the transmission device, so that the humidity measuring device is effectively isolated from polluted air in the composite environmental test chamber under a non-humidity measuring state, automatic temperature control and automatic water supplement are realized by the humidity measuring device, and the humidity in the composite environmental test chamber can be accurately measured.
In order to achieve the purpose, the invention comprises the following technical scheme:
a humidity measuring device for a multi-factor composite environmental test chamber comprises a humidity measuring system, a transmission device 8 and an automatic control device 20; when measuring the humidity, the humidity measuring device is installed on the composite environmental test chamber 19;
the humidity measuring system consists of a dry bulb thermometer 1, a wet bulb thermometer 2, a wetting box 3, gauze 4, a first sealing baffle 6, a second sealing baffle 7 and a water replenishing box 11;
the front end of the wetting cartridge 3 is detachably connected to the second sealing barrier 7; the wetting chamber 3 passes through a first sealing barrier 6, to which the middle part of the wetting chamber is sealingly connected; the wet bulb thermometer 2 and the dry bulb thermometer 1 are sequentially arranged above the wetting box 3, and the tail ends of the wet bulb thermometer 2 and the dry bulb thermometer 1 are respectively fixed on one side of the first sealing baffle 6 facing the second sealing baffle 7; the upper part of the wetting box 3 is provided with a through notch 301, the gauze 4 covers the wet bulb thermometer 2, and the lower end of the gauze is immersed in the wetting box 3 through the through notch 301; a liquid level meter 5 is arranged in the wetting box 3; the water replenishing box 11 is positioned above the wetting box 3 and is connected with the wetting box 3 through a water outlet pipe 17;
the composite environmental test chamber 19 is provided with a test hole 1901, the diameter of the test hole allows the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 to pass through, and is smaller than the outer diameters of the first sealing baffle 6 and the second sealing baffle 7;
the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 pass through the test hole 1901, and the first sealing baffle 6 and the second sealing baffle 7 are respectively positioned at two sides of the test hole 1901; the transmission device 8 is located outside the composite environmental test chamber 19, and the rear end of the wetting box 3 is connected with the transmission device 8; the reciprocating motion of the transmission device 8 drives the wetting box 3 to move back and forth, so that the front parts of the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 enter and exit the composite environmental test chamber 19 through the test hole 1901, and the reciprocating motion is limited by the first sealing baffle 6 and the second sealing baffle 7;
the dry bulb thermometer 1, the wet bulb thermometer 2, the liquid level meter 5, the water replenishing box 11 and the transmission device 8 are respectively connected with the automatic control device 20.
In the humidity measuring device for the multifactor composite environmental test chamber, preferably, the first sealing baffle and the second sealing baffle are both a double-layer structure formed by combining the sealing layer 601 and the supporting layer 602, the center of the first sealing baffle 6 is provided with a through hole 603 for accommodating the wetting box 3, and a wet bulb thermometer fixing hole 604 and a dry bulb thermometer fixing hole 605 are sequentially arranged above the through hole.
In the humidity measuring apparatus for the multifactor composite environmental test chamber, the composite environmental test chamber 19 is preferably an environmental test chamber integrated with damp heat, salt fog and drying test functions.
According to the humidity measuring device for the multifactor composite environment test chamber, preferably, the water replenishing box 11 is provided with the liquid level sensor 12, the temperature sensor 13, the water inlet pipe 15 and the water outlet pipe 17, the bottom of the water replenishing box 11 is provided with the heating pipe 14, the water inlet pipe 15 is provided with the water inlet electromagnetic valve 16, the water outlet pipe 17 is provided with the water outlet electromagnetic valve 18, and the outside of the water replenishing box 11 is wrapped with the heat insulating material; the liquid level sensor 12, the temperature sensor 13, the water inlet electromagnetic valve 16, the water outlet electromagnetic valve 18 and the heating pipe 14 are all connected with an automatic control device 20.
In another aspect, the present invention provides a multi-factor composite environmental test chamber, which includes the humidity measuring device of the multi-factor composite environmental test chamber.
In still another aspect, the present invention provides a method for humidity measurement using the humidity measuring device for a multi-factor composite environmental test chamber as described above, the method comprising the steps of:
I. the initial position of the humidity measuring system is positioned at the outer side of the composite environment test box 19, and the second sealing baffle 7 is attached to the inner side of the side wall of the composite environment test box 19;
II, the automatic control device 20 starts the electromagnetic valve 16 on the water inlet pipe 15 according to the feedback of the liquid level sensor 12, injects water into the water replenishing box 11, heats the water in the water replenishing box 11 to the same temperature as the composite environment test box 19 through the heating pipe 14, and maintains the temperature;
III, the automatic control device 20 starts the water outlet electromagnetic valve 18 on the water outlet pipe 17 according to the feedback of the liquid level meter 5, so that a certain water level is always kept in the wetting box 3, and the gauze 4 is in a normal wetting state;
IV, starting a transmission device 8, pushing the front parts of the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 into the composite environment test box 19 under the driving of the transmission device 8 until the first sealing baffle 7 is attached to the outer side of the side wall of the composite environment test box 19;
v. start the humidity measurement and feed back the results of the humidity measurement in real time to the automation control device 20.
In the method, after the humidity measurement is finished, the transmission device 8 is preferably retracted, the front parts of the dry-bulb thermometer 1, the wet-bulb thermometer 2 and the wetting box 3 are moved out of the composite environmental test chamber 19 under the driving of the transmission device 8 until the second sealing baffle 8 is attached to the inner side of the side wall of the composite environmental test chamber 19, at this time, the humidity measurement system is isolated from the test environment, and salt spray, drying and other tests can be performed in the composite environmental test chamber 19.
The beneficial effects of the invention are as follows:
1. the influence of the salt spray test environment and the drying test environment on the humidity measurement is avoided, and the humidity measurement precision of the composite environment test box is improved.
2. The whole set of device can be used with any composite environmental test chamber needing humidity measurement, and the application range is wide.
3. The wetting state of the humidity measuring gauze can be kept in real time without stopping the test.
4. The whole device has low cost and convenient maintenance and use.
Drawings
Fig. 1 is a schematic structural diagram of a multi-factor composite environmental test chamber in an initial stage of humidity measurement and after the humidity measurement is completed according to a preferred embodiment of the present invention.
Fig. 2 is a schematic view of a first sealing baffle structure.
Fig. 3 is a schematic view of the structure of the refill cartridge.
Fig. 4 is a schematic structural diagram of a composite environmental test chamber.
FIG. 5 is a schematic diagram of a state structure in humidity measurement of a multi-factor composite environmental test chamber.
Detailed Description
Example 1 humidity measuring device for multi-factor composite environmental test chamber
In a preferred embodiment of the present invention, as shown in fig. 1, the humidity measuring device of the multifactor composite environmental test chamber includes a humidity measuring system, a transmission device 8 and an automation control device 20. The humidity measuring device is mounted on the composite environmental test chamber 19 when measuring humidity.
The humidity measuring system consists of a dry bulb thermometer 1, a wet bulb thermometer 2, a wetting box 3, gauze 4, a first sealing baffle 6, a second sealing baffle 7 and a water replenishing box 11.
The front end of the wetting cartridge 3 is detachably connected, for example by means of a screw thread, to the second sealing flap 7. The wetting chamber 3 is passed through a first sealing barrier 6, to which the middle part of the wetting chamber is sealingly connected, e.g. welded.
As shown in fig. 2, the first sealing barrier 6 has a two-layer structure formed by combining a sealing layer 601 and a support layer 602. The sealing layer is made of a high-elasticity, corrosion-resistant and high-temperature-resistant sealing material, and the supporting layer is made of corrosion-resistant stainless steel. The first sealing barrier 6 has a through-hole 603 in the center thereof for accommodating the wetting case 3, and a wet bulb thermometer fixing hole 604 and a dry bulb thermometer fixing hole 605 are provided in this order on the side of the sealing layer above the through-hole.
The second sealing baffle 7 is made of the same material as the first sealing baffle 6, and is also of a double-layer structure formed by compounding a sealing layer and a supporting layer.
As shown in fig. 1, the rear ends of the wet bulb thermometer 2 and the dry bulb thermometer 1 are fixed in the wet bulb thermometer fixing hole 604 and the dry bulb thermometer fixing hole 605, respectively, and are located on the side of the first seal dam 6 facing the second seal dam 7. The upper part of the wetting box 3 is provided with a through notch 301, the gauze 4 covers the wet bulb thermometer 2, and the lower end of the gauze is immersed in the wetting box 3 through the through notch 301; a level gauge 5 is mounted in the wetting box 3.
As shown in fig. 3, a liquid level sensor 12, a temperature sensor 13, a water inlet pipe 15 and a water outlet pipe 17 are arranged on the water replenishing box 11, a heating pipe 14 is arranged at the bottom of the water replenishing box 11, a water inlet electromagnetic valve 16 is installed on the water inlet pipe 15, a water outlet electromagnetic valve 18 is installed on the water outlet pipe 17, and a heat insulating material is wrapped outside the water replenishing box 11. As shown in fig. 1, the moisturizing box 11 is located above the wetting box 3 and is connected with the wetting box 3 through an outlet pipe 17.
As shown in FIG. 4, the composite environmental test chamber 19 has a test hole 1901, and the diameter of the test hole 1901 is smaller than the outer diameters of the two baffles, and allows the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 to pass through.
As shown in FIG. 1, the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting chamber 3 are inserted through the test well 1901, and the first and second sealing jaws 6 and 7 are positioned at both sides of the test well 1901, respectively. The transmission device 8 is located outside the composite environmental test chamber 19, and the rear end of the wetting box 3 is connected with the transmission device 8; the reciprocating motion of the actuator 8, which is limited by the first and second sealing shutters 6 and 7, moves the wetting box 3 back and forth, thereby moving the front portions of the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 into and out of the composite environmental test chamber 19 through the test port 1901.
The dry bulb thermometer 1, the wet bulb thermometer 2, the liquid level meter 5, the liquid level sensor 12, the temperature sensor 13, the water inlet electromagnetic valve 16, the water outlet electromagnetic valve 18, the heating pipe 14 and the transmission device 8 are respectively connected with an automatic control device 20.
The humidity measurement device for the multi-factor composite environmental test chamber comprises the following steps:
I. the initial position of the humidity measuring system is located at the outer side of the composite environmental test chamber 19, and the second sealing baffle 7 is attached to the inner side of the side wall of the composite environmental test chamber 19.
And II, the automatic control device 20 starts the electromagnetic valve 16 on the water inlet pipe 15 according to the feedback of the liquid level sensor 12, injects water into the water replenishing box 11, heats the water in the water replenishing box 11 to the same temperature as the composite environment test box 19 through the heating pipe 14, and maintains the temperature.
And III, the automatic control device 20 starts the water outlet electromagnetic valve 18 on the water outlet pipe 17 according to the feedback of the liquid level meter 5, so that a certain water level is always kept in the wetting box 3, and the gauze 4 is in a normal wetting state.
And IV, starting the transmission device 8, and pushing the front parts of the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 into the composite environment test box 19 under the driving of the transmission device 8 until the first sealing baffle 7 is attached to the outer side of the side wall of the composite environment test box 19.
V. start the humidity measurement and feed back the results of the humidity measurement in real time to the automation control device 20.
VI, after the humidity measurement is finished, the transmission device 8 is retracted, the front parts of the dry bulb thermometer 1, the wet bulb thermometer 2 and the wetting box 3 are driven by the transmission device 8 to move out of the composite environment test box 19 until the second sealing baffle 8 is attached to the inner side of the side wall of the composite environment test box 19, the humidity measurement system is isolated from the test environment, and the measurement of salt fog, drying and the like can be performed in the composite environment test box 19.
The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also belong to the scope of the invention, and the scope of the invention is defined by the claims.
Claims (7)
1. The humidity measuring device for the multifactor composite environmental test chamber is characterized by comprising a humidity measuring system, a transmission device (8) and an automatic control device (20); when measuring the humidity, the humidity measuring device is arranged on a composite environmental test chamber (19);
the humidity measuring system consists of a dry bulb thermometer (1), a wet bulb thermometer (2), a wetting box (3), gauze (4), a first sealing baffle (6), a second sealing baffle (7) and a water replenishing box (11);
the front end of the wetting box (3) is detachably connected with a second sealing flap (7); the wetting box (3) passes through the first sealing baffle (6), and the middle part of the wetting box is hermetically connected with the first sealing baffle; the wet bulb thermometer (2) and the dry bulb thermometer (1) are sequentially arranged above the wetting box (3), and the tail ends of the wet bulb thermometer (2) and the dry bulb thermometer (1) are respectively fixed on one side of the first sealing baffle (6) facing the second sealing baffle (7); the upper part of the wetting box (3) is provided with a through notch (301), the gauze (4) covers the wet bulb thermometer (2), and the lower end of the gauze is immersed in the wetting box (3) through the through notch (301); a liquid level meter (5) is arranged in the wetting box (3); the water replenishing box (11) is positioned above the wetting box (3) and is connected with the wetting box (3) through a water outlet pipe (17);
the composite environmental test chamber (19) is provided with a test hole (1901), the diameter of the test hole allows the dry-bulb thermometer (1), the wet-bulb thermometer (2) and the wetting box (3) to pass through, and is smaller than the outer diameters of the first sealing baffle (6) and the second sealing baffle (7);
the dry bulb thermometer (1), the wet bulb thermometer (2) and the wetting box (3) penetrate through the testing hole (1901), and the first sealing baffle (6) and the second sealing baffle (7) are respectively positioned at two sides of the testing hole (1901); the transmission device (8) is positioned outside the composite environment test box (19), and the rear end of the wetting box (3) is connected with the transmission device (8); the reciprocating motion of the transmission device (8) drives the wetting box (3) to move back and forth, so that the front parts of the dry-bulb thermometer (1), the wet-bulb thermometer (2) and the wetting box (3) enter and exit the composite environmental test chamber (19) through the test hole (1901), and the reciprocating motion is limited by the first sealing baffle (6) and the second sealing baffle (7);
the dry bulb thermometer (1), the wet bulb thermometer (2), the liquid level meter (5), the water replenishing box (11) and the transmission device (8) are respectively connected with the automatic control device (20).
2. The humidity measuring device for the multifactor composite environmental test chamber according to claim 1, wherein the first sealing baffle and the second sealing baffle are both a double-layer structure formed by compounding a sealing layer (601) and a supporting layer (602), the center of the first sealing baffle (6) is provided with a through hole (603) for accommodating the wetting box (3), and a wet bulb thermometer fixing hole (604) and a dry bulb thermometer fixing hole (605) are sequentially arranged above the through hole.
3. The humidity measuring device for the multifactor composite environmental test chamber according to claim 1, wherein the composite environmental test chamber (19) is an environmental test chamber integrated with damp heat, salt fog and dry test functions.
4. The humidity measuring device for the multifactor composite environmental test chamber according to any one of claims 1 to 3, wherein the water replenishing box (11) is provided with a liquid level sensor (12), a temperature sensor (13), a water inlet pipe (15) and a water outlet pipe (17), the bottom of the water replenishing box (11) is provided with a heating pipe (14), the water inlet pipe (15) is provided with a water inlet electromagnetic valve (16), the water outlet pipe (17) is provided with a water outlet electromagnetic valve (18), and the outside of the water replenishing box (11) is wrapped with a heat insulating material; the liquid level sensor (12), the temperature sensor (13), the water inlet electromagnetic valve (16), the water outlet electromagnetic valve (18) and the heating pipe (14) are all connected with an automatic control device (20).
5. A multifactor composite environmental test chamber comprising a multifactor composite environmental test chamber humidity measuring device according to any one of claims 1 to 4.
6. Method for humidity measurement using a humidity measuring device for a multifactor composite environmental test chamber according to one of claims 1 to 4, characterized in that it comprises the following steps:
I. the initial position of the humidity measuring system is positioned at the outer side of the composite environment test box (19), and the second sealing baffle (7) is attached to the inner side of the side wall of the composite environment test box (19);
II, starting an electromagnetic valve (16) on a water inlet pipe (15) by an automatic control device (20) according to the feedback of a liquid level sensor (12), injecting water into the water supplementing box (11), heating the water in the water supplementing box (11) to the same temperature as the composite environment test box (19) through a heating pipe (14), and maintaining the temperature;
III, starting a water outlet electromagnetic valve (18) on a water outlet pipe (17) by an automatic control device (20) according to the feedback of the liquid level meter (5) so as to keep a certain water level in the wetting box (3) all the time and enable the gauze (4) to be in a normal wetting state;
IV, starting a transmission device (8), pushing the front parts of the dry-bulb thermometer (1), the wet-bulb thermometer (2) and the wetting box (3) into a composite environment test box (19) under the driving of the transmission device (8) until a first sealing baffle (7) is attached to the outer side of the side wall of the composite environment test box (19);
v. starting humidity measurement, and feeding back the measurement result to the automatic control device (20) in real time.
7. The method as claimed in claim 6, characterized in that after the humidity measurement is finished, the transmission device (8) is retracted, the dry bulb thermometer (1), the wet bulb thermometer (2) and the front part of the wetting box (3) are moved out of the composite environmental test chamber (19) under the driving of the transmission device (8) until the second sealing baffle (8) is attached to the inner side of the side wall of the composite environmental test chamber (19), at the moment, the humidity measurement system is isolated from the test environment, and salt fog, drying and other tests can be carried out in the composite environmental test chamber (19).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517090A (en) * | 2020-12-08 | 2021-03-19 | 浪潮商用机器有限公司 | Environmental test case and environmental test system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2975601B1 (en) * | 1998-11-06 | 1999-11-10 | スガ試験機株式会社 | Environmental test tank mainly for gas |
| CN102221567A (en) * | 2011-03-31 | 2011-10-19 | 福建师范大学福清分校 | Method and device for measuring humidity |
| CN104697921A (en) * | 2015-04-02 | 2015-06-10 | 上海海事大学 | Experimental system for simulating steel plate corrosion environment of crude oil tanker oil cabin |
| CN105043966A (en) * | 2015-07-31 | 2015-11-11 | 工业和信息化部邮电工业标准化研究所 | Sand and dust test box and operation method thereof |
| CN106404647A (en) * | 2016-08-30 | 2017-02-15 | 中国建筑材料科学研究总院 | Method and device for measuring sea water erosion resistance of cement-based material |
-
2018
- 2018-07-16 CN CN201810776895.6A patent/CN110726659B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2975601B1 (en) * | 1998-11-06 | 1999-11-10 | スガ試験機株式会社 | Environmental test tank mainly for gas |
| CN102221567A (en) * | 2011-03-31 | 2011-10-19 | 福建师范大学福清分校 | Method and device for measuring humidity |
| CN104697921A (en) * | 2015-04-02 | 2015-06-10 | 上海海事大学 | Experimental system for simulating steel plate corrosion environment of crude oil tanker oil cabin |
| CN105043966A (en) * | 2015-07-31 | 2015-11-11 | 工业和信息化部邮电工业标准化研究所 | Sand and dust test box and operation method thereof |
| CN106404647A (en) * | 2016-08-30 | 2017-02-15 | 中国建筑材料科学研究总院 | Method and device for measuring sea water erosion resistance of cement-based material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517090A (en) * | 2020-12-08 | 2021-03-19 | 浪潮商用机器有限公司 | Environmental test case and environmental test system |
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Effective date of registration: 20230417 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: CHINA UNITED TEST & CERTIFICATION Co.,Ltd. Address before: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee before: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA UNITED TEST & CERTIFICATION Co.,Ltd. Patentee before: GUOBIAO (BEIJING) TESTING & CERTIFICATION CO.,LTD. |
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