CN213133232U - Humidification water path circulation system of temperature and humidity test box - Google Patents
Humidification water path circulation system of temperature and humidity test box Download PDFInfo
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- CN213133232U CN213133232U CN202021848301.7U CN202021848301U CN213133232U CN 213133232 U CN213133232 U CN 213133232U CN 202021848301 U CN202021848301 U CN 202021848301U CN 213133232 U CN213133232 U CN 213133232U
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Abstract
The utility model relates to a temperature and humidity test box humidification water path circulation system, which comprises a water level control cup, a humidification barrel, a water pump and a water tank, wherein the water tank, the water pump, the water level control cup and the humidification barrel are sequentially connected to form a liquid supply passage; the liquid recycling channel is provided with a first valve, the humidifying barrel is provided with a water drainage pipeline, the water drainage pipeline is provided with a second valve, an outer discharge pipeline is further arranged on the pipeline between the first valve and the second valve, and a third valve is arranged on the outer discharge pipeline. The utility model discloses simple structure, water level display accuracy are high, the function is diversified.
Description
Technical Field
The utility model relates to a temperature and humidity test case technical field especially relates to a temperature and humidity test case humidification water path circulation system.
Background
The temperature and humidity test chamber is a typical environmental test simulation apparatus, and is capable of performing an adaptive test of temperature or humidity on a product (test object).
The humidification water path circulating system of the existing temperature and humidity test box has the following defects: (1) the circulation state can not be switched, and the function is single. (2) The water level control cup has a complex structure, and the water level control cup and the humidification barrel are directly communicated with the outside respectively, so that the air pressure in the water level control cup and the humidification barrel is easily influenced by the outside air pressure, the liquid levels in the water level control cup and the humidification barrel are inconsistent, and the water level in the humidification barrel is not accurately displayed. (3) The water inlet and drain holes in the humidification barrel are the same hole and are arranged on the upper portion of the side face of the humidification barrel, the air outlet hole in the humidification barrel is arranged on the lower portion of the side face of the humidification barrel, water in the humidification barrel easily flows into the test box through the air outlet hole due to the structural design defect, the water level change range in the humidification barrel is narrow, the dry burning phenomenon easily occurs, and the safety is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a temperature and humidity test case humidification water path circulation system of simple structure, water level display accuracy height, function diversification.
The utility model provides a humiture test box humidification water route circulation system, including water level control cup, humidification bucket, water pump and water tank, water pump, water level control cup and humidification bucket connect gradually and form the confession liquid passageway, the water level control cup is connected with the water pump and is formed the confession liquid circulation circuit, the gas outlet of humidification bucket is connected with the air inlet of proof box, the proof box is connected with the water pump and is formed the liquid recovery passageway, still be connected with pressure balance pipe between water level control cup and the humidification bucket;
the humidifying barrel is characterized in that a first valve is arranged on the liquid recovery passage, a water drainage pipeline is arranged on the humidifying barrel, a second valve is arranged on the water drainage pipeline, an outer discharge pipeline is further arranged on a pipeline between the first valve and the second valve, and a third valve is arranged on the outer discharge pipeline.
Preferably, the top of the humidifying barrel is provided with a first balance port, the lower part of the side surface of the humidifying barrel is provided with a first water inlet, the upper part of the other side of the humidifying barrel is provided with an air outlet, the bottom of the humidifying barrel is provided with a first water drainage port, the first water drainage port is connected with the water inlet end of a water pump, and the humidifying barrel is internally provided with a heating rod.
In any one of the above aspects, preferably, the heating rod includes a heating portion and a conductive portion, and the heating portion is connected to a lower end of the conductive portion.
Preferably, in any one of the above schemes, the water level control cup includes a cup body and a cup cover, an overflow plate is arranged in the cup body, a second water inlet, a second water outlet and an overflow port are arranged at the bottom of the cup body, the second water inlet and the second water outlet are arranged at one side of the overflow plate, the overflow port is arranged at the other side of the overflow plate, the second water inlet is connected with a water outlet end of the water pump, the second water outlet is connected with the first water inlet, the overflow port is connected with a water inlet end of the water pump, a second balance port is arranged on the cup cover, and two ends of the pressure balance pipe are respectively connected with the first balance port and the second balance port.
In any one of the above embodiments, preferably, an upper end surface of the overflow plate is lower than an upper end surface of the cup body.
In any of the above schemes, preferably, a primary filter and a secondary filter are sequentially arranged between the water pump and the second water inlet.
In any of the above embodiments, preferably, the primary filter is a PP cotton filter.
In any of the above embodiments, the secondary filter is preferably a softened resin filter.
Compared with the prior art, the utility model has the advantages and beneficial effects do:
1. through being connected with pressure balance pipe between water level control cup and the humidification bucket, make the pressure in the water level control cup and the pressure in the humidification bucket remain at balanced state throughout, compare with the structure of current water level control cup with external intercommunication, can not receive the influence of external atmospheric pressure to the liquid level in the water level control cup, can guarantee the liquid level in the water level control cup and the liquid level uniformity in the humidification bucket to guarantee to know the accuracy nature of the liquid level change in the humidification bucket.
2. The liquid recycling passage is provided with a first valve, the drainage pipeline of the humidifying barrel is provided with a second valve, the pipeline between the first valve and the second valve is also provided with an outer discharge pipeline, and the outer discharge pipeline is provided with a third valve. The on-off of each pipeline is controlled by controlling the on-off of the first valve, the second valve and the third valve, and two circulating modes and non-circulating modes can be realized.
3. Be equipped with primary filter, secondary filter in proper order between water pump and the second water inlet to filter the liquid of backward flow, with the cleanliness factor of guaranteeing to carry to the interior liquid of humidification bucket, thereby guarantee the cleanliness factor of output vapor.
4. First water inlet and first drain port separately design, and locate the side lower part and the bottom of humidification bucket respectively, the side upper portion of humidification bucket is located to the play steam port, the distance between first water inlet and the first drain port has been increased, the phenomenon that the water in the humidification bucket flows to the proof box through the play steam port can not appear, the structure of while heating rod makes its water to the humidification bottom of the barrel heat, the scope of the water level change of allowwing in the humidification bucket has been enlarged, avoid appearing the dry combustion method phenomenon, improve humidification bucket safety in utilization.
The humidification water path circulation system of the temperature and humidity test chamber of the present invention will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a working principle diagram of the humidifying water path circulating system of the temperature and humidity test box of the utility model;
fig. 2 is a schematic structural view of a humidification barrel in a humidification water path circulation system of the temperature and humidity test chamber of the present invention;
fig. 3 is a schematic structural view of a water level control cup in a humidification water path circulation system of the temperature and humidity test chamber of the present invention;
wherein: 1. a water level control cup; 101. a cup body; 102. an overflow plate; 103. a second water inlet; 104. a second water outlet; 105. An overflow port; 106. a cup cover; 107. a second balance port; 2. a secondary filter; 3. a first stage filter; 4. a water pump; 5. a water tank; 6. a first valve; 7. a second valve; 8. a humidifying barrel; 801. a first balance port; 802. a first water inlet; 803. a steam outlet; 804. a first drain port; 9. a temperature and humidity test chamber; 10. a third valve; 11. a pressure balancing tube.
Detailed Description
As shown in fig. 1, the utility model provides a temperature and humidity test case humidification water route circulation system, including water level control cup 1, humidification bucket 8, water pump 4 and water tank 5, water pump 4, water level control cup 1 and humidification bucket 8 connect gradually and form the confession liquid route, and water level control cup 1 is connected with water pump 4 and is formed the confession liquid circulation circuit, and the play steam port 803 of humidification bucket 8 is connected with the air inlet of temperature and humidity test case 9, and temperature and humidity test case 9 is connected with water pump 4 and is formed the liquid recovery route.
The working principle is as follows: the liquid supply passage provides water source for the humidifying barrel 8, and water in the water tank 5 is pumped into the humidifying barrel 8 through the water level control cup 1 by the water pump 4. The liquid supply circulation loop recovers water overflowing from the water level control cup 1, and the water is pumped into the humidifying barrel 8 through the water level control cup 1 by the water pump 4. The condensed water condensed in the test box is recovered by the liquid recovery passage and is pumped into the humidifying barrel 8 through the water level control cup 1 by the water pump 4. The water forms vapor after being heated in the humidifying barrel 8, and the vapor enters the test box through the air outlet 803 of the humidifying barrel 8 and the air inlet of the test box so as to provide a humidity environment for the test box.
The water level control cup 1 is a transparent cup, and the water level control cup 1 is arranged so that a worker can observe the water level change of the humidifying barrel 8 in real time. The liquid level in the water level control cup 1 is the same as the liquid level of the humidifying barrel 8, and the liquid level of the humidifying barrel 8 can be known by a worker by reading the liquid level in the water level control cup 1. Further, the water pump 4 is electrically connected to the PLC controller. The PLC controller controls the water pump 4 to pump water at regular time by taking preset T1+ T2 as a period. The PLC sends a starting signal to the water pump 4, the water level control cup 1 of the timing box is filled with water by the water pump 4 in a timing mode T1 and a water cut-off timing mode T2, and the like, so that the water level of the water level control cup 1 is always kept at the same height, and the control of the liquid level in the humidifying barrel 8 is achieved.
Through being connected with pressure balance pipe 11 between water level control cup 1 and the humidification bucket 8, make the pressure in water level control cup 1 and the pressure in the humidification bucket 8 remain throughout at balanced state, compare with the structure of current water level control cup 1 with external intercommunication, can not receive the influence of external atmospheric pressure to liquid level in the water level control cup 1, can guarantee the liquid level in the water level control cup 1 and the liquid level uniformity in the humidification bucket 8, thereby guarantee to learn the accuracy nature of the liquid level change in the humidification bucket 8.
Further, as shown in fig. 2, a first balance port 801 is arranged at the top of the humidification barrel 8, a first water inlet 802 is arranged at the lower portion of the side surface of the humidification barrel 8, an air outlet 803 is arranged at the upper portion of the other side of the humidification barrel 8, a first water outlet 804 is arranged at the bottom of the humidification barrel 8, the first water outlet 804 is connected with a water inlet end of the water pump 4, and a heating rod is arranged in the humidification barrel 8. The heating rod is used for heating water in the humidifying barrel 8 to form water vapor, and the water vapor is conveyed into the test box through the air outlet 803 to provide a humidity environment for the test box.
Still further, the heating rod includes a heating portion and a conductive portion, and the heating portion is connected to a lower end of the conductive portion. The heating portion of the heating rod heats the water in the humidification water tub 8.
In this structure, first water inlet 802 and first drain 804 separately design, and locate humidification bucket 8's side lower part and bottom respectively, humidification bucket 8's side upper portion is located to gas outlet 803, the distance between first water inlet 802 and the first drain 804 has been increased, the phenomenon that water in the humidification bucket 8 flows to the proof box through gas outlet 803 can not appear, the structure of heating rod makes its water to humidification bucket 8 bottom heat simultaneously, the scope of the change of allowable water level in the humidification bucket 8 has been enlarged, avoid appearing the dry combustion method phenomenon, improve humidification bucket 8 safety in utilization.
Further, as shown in fig. 3, the water level control cup 1 includes a cup body 101 and a cup cover 106, an overflow plate 102 is disposed in the cup body 101, an upper end surface of the overflow plate 102 is lower than an upper end surface of the cup body 101, a second water inlet 103, a second water outlet and an overflow opening 105 are disposed at a bottom of the cup body 101, the second water inlet 103 and the second water outlet are disposed at one side of the overflow plate 102, the overflow opening 105 is disposed at the other side of the overflow plate 102, the second water inlet 103 is connected to a water outlet of the water pump 4, the second water outlet is connected to a first water inlet 802, the overflow opening 105 is connected to a water inlet of the water pump 4, a second balance opening 107 is disposed on the cup cover 106, and two ends of the pressure balance pipe 11 are respectively connected to the first balance opening.
When the water level at one side in the water level control cup 1 is higher than the overflow plate 102, the water at the side overflows to the other side in the water level control cup 1 through the overflow plate 102, flows to the water inlet end of the water pump 4 through the overflow port 105, and is pumped into the water level control cup 1 through the water pump 4, so that the liquid supply circulation is realized.
As shown in fig. 1, a first valve 6 is disposed on the liquid recovery passage, a drain pipeline is disposed on the humidification barrel 8, a second valve 7 is disposed on the drain pipeline, an external discharge pipeline is further disposed on the pipeline between the first valve 6 and the second valve 7, and a third valve 10 is disposed on the external discharge pipeline.
The on-off of each pipeline is controlled by controlling the on-off of the first valve 6, the second valve 7 and the third valve 10, so that two modes of circulation and non-circulation can be realized. Specifically, when the test chamber is in the circulation mode, the first valve 6 is opened, the third valve 10 is closed, the condensed water discharged from the test chamber is recovered, and the condensed water is pumped into the humidifying barrel 8 through the water level control cup 1 by the water pump 4. When the non-circulation mode is adopted, the first valve 6 is closed, the third valve 10 is opened, and the condensed water discharged by the test box is directly discharged by the discharge pipeline. The second valve 7 is always in a closed state when the circulating system works, and is opened only when the humidifying barrel 8 needs maintenance, and at the moment, the third valve 10 is opened to drain residual water in the humidifying barrel 8. Wherein the first valve 6 and the third valve 10 are both solenoid valves. The second valve 7 is a ball valve and is opened manually.
Further, a primary filter 3 and a secondary filter 2 are sequentially arranged between the water pump 4 and the second water inlet 103. In this structure, the setting of one-level filter 3, secondary filter 2 is in order to filter the liquid of backward flow to guarantee to carry the cleanliness factor of liquid in the humidification bucket 8, thereby guarantee the cleanliness factor of output vapor.
Wherein, the primary filter 3 is a PP cotton filter for adsorbing particulate impurities in water. The secondary filter 2 is a softened resin filter for adsorbing mineral elements such as calcium and magnesium in water and preventing the mineral elements from being contained in the humidifying tub 8.
Further, the water pump 4 is a self-priming pump.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (8)
1. The utility model provides a temperature and humidity test case humidification water route circulation system which characterized in that: the device comprises a water level control cup, a humidifying barrel, a water pump and a water tank, wherein the water tank, the water pump, the water level control cup and the humidifying barrel are sequentially connected to form a liquid supply passage;
the humidifying barrel is characterized in that a first valve is arranged on the liquid recovery passage, a water drainage pipeline is arranged on the humidifying barrel, a second valve is arranged on the water drainage pipeline, an outer discharge pipeline is further arranged on a pipeline between the first valve and the second valve, and a third valve is arranged on the outer discharge pipeline.
2. The temperature and humidity test chamber humidification water circuit circulation system of claim 1, characterized in that: the top of humidification bucket is equipped with first balanced mouth, the side lower part of humidification bucket is equipped with first water inlet, the opposite side upper portion of humidification bucket is equipped with the gas outlet, the bottom of humidification bucket is equipped with first drainage port, first drainage port is connected with the end of intaking of water pump, be equipped with the heating rod in the humidification bucket.
3. The temperature and humidity test chamber humidification water circuit circulation system of claim 2, characterized in that: the heating rod comprises a heating part and a conductive part, and the heating part is connected with the lower end of the conductive part.
4. The temperature and humidity test chamber humidification water circuit circulation system of claim 2, characterized in that: the water level control cup comprises a cup body and a cup cover, wherein a water overflow plate is arranged in the cup body, a second water inlet, a second water outlet and a water overflow port are formed in the bottom of the cup body, the second water inlet and the second water outlet are formed in one side of the water overflow plate, the water overflow port is formed in the other side of the water overflow plate, the second water inlet is connected with the water outlet end of the water pump, the second water outlet is connected with the first water inlet, the water overflow port is connected with the water inlet end of the water pump, a second balance port is formed in the cup cover, and two ends of the pressure balance pipe are respectively connected with the first balance port and the second balance port.
5. The temperature and humidity test chamber humidification water circuit circulation system of claim 4, characterized in that: the upper end surface of the overflow plate is lower than the upper end surface of the cup body.
6. The temperature and humidity test chamber humidification water circuit circulation system of claim 4, characterized in that: and a primary filter and a secondary filter are sequentially arranged between the water pump and the second water inlet.
7. The temperature and humidity test chamber humidification water circuit circulation system of claim 6, characterized in that: the primary filter is a PP cotton filter.
8. The temperature and humidity test chamber humidification water circuit circulation system of claim 6, characterized in that: the secondary filter is set as a softened resin filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848301.7U CN213133232U (en) | 2020-08-28 | 2020-08-28 | Humidification water path circulation system of temperature and humidity test box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848301.7U CN213133232U (en) | 2020-08-28 | 2020-08-28 | Humidification water path circulation system of temperature and humidity test box |
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| CN213133232U true CN213133232U (en) | 2021-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377744A (en) * | 2022-01-25 | 2022-04-22 | 威乐(中国)水泵系统有限公司 | Water pump simulation environment multifunctional test bench |
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2020
- 2020-08-28 CN CN202021848301.7U patent/CN213133232U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377744A (en) * | 2022-01-25 | 2022-04-22 | 威乐(中国)水泵系统有限公司 | Water pump simulation environment multifunctional test bench |
| CN114377744B (en) * | 2022-01-25 | 2023-04-21 | 威乐(中国)水泵系统有限公司 | Multifunctional test bench for water pump simulation environment |
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