Automatic humidifying device for low-pressure composite laboratory

Abstract

The utility model discloses an automatic humidifying device for a low-pressure compound laboratory, which belongs to the technical field of humidifying devices and comprises a low-pressure laboratory, a steam storage tank, a steam generator, a reverse osmosis water generator and a control valve group. The outer side of the humidifying nozzle is connected with a first interface; the steam storage tank is provided with a high-temperature steam outlet, a high-temperature steam inlet and a blow-off outlet, the high-temperature steam outlet is connected with the first connector through a pipeline, and the blow-off outlet is connected with the blow-off pipe through a pipeline; the steam generator, the reverse osmosis water generator and the steam storage tank are connected through pipelines; and the control valve group is arranged on a pipeline among the low-pressure laboratory, the steam storage tank, the steam generator and the reverse osmosis water generator. According to the utility model, the functions of normal-pressure humidification and low-pressure humidification are realized, meanwhile, the humidification function under the conditions of high temperature and low temperature can be met, the adaptability is improved, and the humidity control precision is high and uniform.

Description

Technical Field

[0001] This utility model relates to the field of humidification device technology, specifically to an automatic humidification device for a low-pressure composite laboratory. Background Technology

[0002] Humidity control technology under low-pressure environments is an important research direction in the field of environmental simulation experiments. Currently, low-pressure composite laboratories generally face two major technical bottlenecks when conducting temperature and humidity alternation experiments: firstly, it is difficult to construct a stable humidity environment (40%RH%-95%RH) under low-pressure conditions (usually referring to simulated altitudes exceeding 3000 meters and air pressure below 70 kPa); secondly, existing equipment cannot maintain effective dynamic balance after reaching the target humidity value, resulting in low precision in humidity control and humidity non-uniformity within the laboratory ≥5%RH. Utility Model Content

[0003] The purpose of this invention is to provide an automatic humidification device for low-pressure composite laboratories to solve the problems of automatic humidification and stable high humidity in low-pressure composite laboratories.

[0004] Technical Solution: This utility model provides an automatic humidification device for a low-pressure composite laboratory, comprising: a low-pressure laboratory, a steam storage tank, a steam generator, a reverse osmosis water purifier, and a control valve group. The low-pressure laboratory is equipped with a circulating air duct, and humidifying nozzles are installed within the circulating air duct. The outer side of each humidifying nozzle is connected to a first interface. The steam storage tank is equipped with a high-temperature steam outlet, a high-temperature steam inlet, and a sewage outlet. The high-temperature steam outlet is connected to the first interface via a pipe, and the outer side of the sewage outlet is connected to a sewage pipe via a pipe. The steam generator is connected to the high-temperature steam inlet via a pipe. The reverse osmosis water purifier is connected to the reverse osmosis water purifier via a pipe. The control valve group includes a first control valve group, a second control valve group, a third control valve group, and a fourth control valve group. The first control valve group is installed on the pipe between the high-temperature steam outlet and the first interface. The second and third control valve groups are sequentially installed on the pipe from the high-temperature steam inlet to the steam generator. The fourth control valve group is installed on the pipe between the sewage outlet and the sewage pipe.

[0005] Furthermore, in the aforementioned automatic humidification device for a low-pressure composite laboratory, both the low-pressure laboratory and the gas storage tank are made of steel pressure vessels, and the low-pressure laboratory needs to maintain a low-pressure environment to meet the requirements of the test work.

[0006] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, a pressure gauge is provided on the outside of the gas storage tank.

[0007] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, the steam generator and the reverse osmosis water purifier are connected to a sewage pipe via pipes, and a first sewage shut-off valve and a second sewage shut-off valve are respectively installed on the pipes.

[0008] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, a first water supply shut-off valve and a second water supply shut-off valve are sequentially installed on the connecting pipe between the steam generator and the reverse osmosis water purifier.

[0009] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, the reverse osmosis water generator is connected to a water supply pipe, and a third water supply shut-off valve is installed on the water supply pipe.

[0010] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, the pipeline between the steam generator and the steam storage tank is a high-temperature steam pipe.

[0011] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, the first control valve group includes a first shut-off valve and a first solenoid valve, which are sequentially connected on the pipeline from the high-temperature steam outlet to the first interface.

[0012] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, the second control valve group includes a second shut-off valve and a second solenoid valve, and the third control valve group includes a third solenoid valve, a third shut-off valve, and a one-way check valve. The second shut-off valve, the second solenoid valve, the third solenoid valve, the third shut-off valve, and the one-way check valve are sequentially connected on the pipeline between the high-temperature steam inlet and the steam generator.

[0013] Furthermore, in the aforementioned low-pressure composite laboratory automatic humidification device, the fourth control valve group includes a fourth shut-off valve, an automatic drain valve, and a fourth solenoid valve, which are sequentially installed on the pipeline between the drain outlet and the drain pipe.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects: The automatic humidification device for low-pressure composite laboratories described in this utility model can simultaneously realize the functions of normal pressure humidification and low-pressure humidification, and can also meet the humidification functions under high and low temperature conditions, thus improving its adaptability; the steam storage tank is used to fill the steam generated by the steam generator, and the pipeline is controlled by the control valve. When the low-pressure composite laboratory has humidity requirements, the steam in the steam storage tank is drawn into the laboratory. Through the cyclic on-off control between the first control valve group, the second control valve group, and the third control valve group, the steam generated by the steam generator is sent to the low-pressure composite laboratory to achieve the purpose of humidification of the low-pressure composite laboratory. It can control the humidity in the low-pressure composite laboratory to 40RH%~95RH, and its humidity control accuracy reaches ±3RH%. Moreover, it makes the humidity in the low-pressure composite laboratory uniform, and its non-uniformity is ≤5RH. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an automatic humidification device for a low-pressure composite laboratory according to the present invention.

[0016] In the diagram: 1. Low-pressure laboratory; 2. Steam storage tank; 3. Steam generator; 4. Reverse osmosis water purifier; 5. Control valve assembly; 6. First water supply shut-off valve; 7. Second water supply shut-off valve; 8. Third water supply shut-off valve; 11. Circulating air duct; 12. Humidifying nozzle; 13. First interface; 21. High-temperature steam outlet; 22. High-temperature steam inlet; 23. Sewage outlet; 24. Pressure gauge; 231. Sewage pipe; 51. First control valve assembly; 52. Second control valve assembly; 53. Third control valve assembly; 54. Fourth control valve assembly; 31. First sewage shut-off valve; 41. Second sewage shut-off valve; 511. First solenoid valve; 512. Second shut-off valve; 521. Second solenoid valve; 522. Third solenoid valve; 531. Third shut-off valve; 532. One-way check valve; 533. Fourth shut-off valve; 541. Automatic sewage valve; 542. Fourth solenoid valve; 543. Detailed Implementation

[0017] Example 1

[0018] like Figure 1An automatic humidification device for a low-pressure composite laboratory, as shown, includes: a low-pressure laboratory 1, a steam storage tank 2, a steam generator 3, a reverse osmosis water purifier 4, and a control valve group 5. The low-pressure laboratory 1 is equipped with a circulating air duct 11, and a humidifying nozzle 12 is installed within the circulating air duct 11. The outer side of the humidifying nozzle 12 is connected to a first interface 13. The steam storage tank 2 is equipped with a high-temperature steam outlet 21, a high-temperature steam inlet 22, and a sewage outlet 23. The high-temperature steam outlet 21 is connected to the first interface 13 via a pipe, and the outer side of the sewage outlet 23 is connected to a sewage pipe 231 via a pipe. The steam... The generator 3 is connected to the high-temperature steam inlet 22 via a pipe; the reverse osmosis water purifier 4 is connected to the reverse osmosis water purifier 4 via a pipe; the control valve group 5 includes a first control valve group 51, a second control valve group 52, a third control valve group 53, and a fourth control valve group 54. The first control valve group 51 is installed on the pipe between the high-temperature steam outlet 21 and the first interface 13. The second control valve group 52 and the third control valve group 53 are sequentially installed on the pipe from the high-temperature steam inlet 22 to the steam generator 3. The fourth control valve group 54 is installed on the pipe between the sewage outlet 23 and the sewage pipe 231. Steam generator 3 generates steam and stores it in steam storage tank 2. The steam is discharged from the high-temperature steam outlet 21 in steam storage tank 2, enters the humidification nozzle 12 through the pipe and the first interface 13, and is distributed to the low-pressure laboratory 1 through the circulating air duct 11 without affecting the uniformity. The steam generated by steam generator 3 is sent to the low-pressure composite laboratory 1 through the circulation on and off control between the first control valve group 51, the second control valve group 52, and the third control valve group 53, so as to achieve the purpose of humidification of the low-pressure composite laboratory 1.

[0019] In this embodiment, the steam storage tank 2 is used to store the steam generated by the steam generator 3, the first control valve group 51 is used to control the opening and closing of the pipeline between the steam storage tank 2 and the low-pressure composite laboratory 1, the second control valve group 52 is used to control the opening and closing of the high-temperature steam and the steam storage tank 2, the third control valve group 53 is used to control the opening and closing of the steam generated by the steam generator 3, and the fourth control valve group 54 is used to control the opening and closing of the steam storage tank 2 and the drain pipe 231.

[0020] In this embodiment, when the low-pressure composite laboratory 1 does not require humidification, the second control valve group 52 and the third control valve group 53 are opened, and the steam from the steam generator 3 fills the steam storage tank 2 to the set pressure. When the low-pressure composite laboratory 1 requires humidification, the second control valve group 52 is closed, and the first control valve group 51 is opened. Since the low-pressure composite laboratory 1 is at low pressure, it will automatically draw the steam from the steam storage tank 2 into the laboratory. Through program control, it continuously cycles to ensure the humidity requirements of the low-pressure composite laboratory.

[0021] In this embodiment, a pressure gauge 24 is provided on the outside of the steam storage tank 2, and a high-temperature steam pipe is used for the pipeline between the steam generator 3 and the steam storage tank 2. When the pressure inside the steam storage tank 2 reaches the storage pressure, the steam generator 3 stops heating and remains in standby mode.

[0022] In this embodiment, both the low-pressure laboratory 1 and the steam storage tank 2 are steel pressure vessels. The low-pressure laboratory 1 needs to maintain a low-pressure environment to meet the requirements of the test.

[0023] In this embodiment, the steam generator 3 and the reverse osmosis water purifier 4 are connected to the drain pipe 231 via pipes. A first drain valve 31 and a second drain valve 41 are respectively installed on the pipes. A first water supply valve 6 and a second water supply valve 7 are sequentially installed on the connecting pipe between the steam generator 3 and the reverse osmosis water purifier 4. The reverse osmosis water purifier 4 treats and stores the water. The steam generator 3 automatically pumps the treated water into the steam generator for heating. The steam generated from the boiling water enters the steam storage tank 2 for storage. After prolonged operation, wastewater is generated in the steam generator 3 and the reverse osmosis water purifier 4. The wastewater is discharged from the drain pipe 231 by opening the first drain valve 31 and the second drain valve 41.

[0024] In this embodiment, the reverse osmosis water purifier 4 is connected to a water supply pipe, and a third water supply shut-off valve 8 is installed on the water supply pipe.

[0025] Example 2

[0026] Based on Example 1, in this example, as... Figure 1 The diagram shows an automatic humidification device for a low-pressure composite laboratory. The first control valve group 51 includes a first shut-off valve 511 and a first solenoid valve 512. The first shut-off valve 511 and the first solenoid valve 512 are connected in sequence on the pipeline from the high-temperature steam outlet 21 to the first interface 13.

[0027] In this embodiment, the second control valve group 52 includes a second shut-off valve 521 and a second solenoid valve 522, and the third control valve group 53 includes a third solenoid valve 531, a third shut-off valve 532, and a one-way check valve 533. The second shut-off valve 521, the second solenoid valve 522, the third solenoid valve 531, the third shut-off valve 532, and the one-way check valve 533 are sequentially connected on the pipeline between the high-temperature steam inlet 22 and the steam generator 3. The one-way check valve 533 allows steam to flow in one direction, preventing steam from flowing back from the steam storage tank 2.

[0028] In this embodiment, the first solenoid valve 512 is closed, and the steam generated by the steam generator 3 is filled into the steam storage tank 2 through the one-way check valve 533, the third shut-off valve 532, the third solenoid valve 531, the second solenoid valve 522, and the second shut-off valve 521. The pressure gauge 24 displays the pressure inside the tank in real time. The second solenoid valve 522 and the second shut-off valve 521 can be connected in parallel with multiple steam generators 3 and the third control valve group 53. When the third solenoid valve 531 is closed, the reverse osmosis water purifier 4 treats the water and stores it. The steam generator 3 automatically pumps the treated water into the steam generator for heating. The steam generated by boiling the water enters the steam storage tank 2 for storage. After reaching the storage pressure, the steam generator 3 stops heating and remains in standby mode.

[0029] In this embodiment, the fourth control valve group 54 includes a fourth shut-off valve 541, an automatic drain valve 542, and a fourth solenoid valve 543. The fourth shut-off valve 541, the automatic drain valve 542, and the fourth solenoid valve 543 are sequentially arranged on the pipeline between the drain outlet 23 and the drain pipe 231. After the steam storage tank 2 operates through multiple cycles, it generates sewage. When the first solenoid valve 512 and the second solenoid valve 522 are closed, the pressure gauge 24 maintains a certain reading. The fourth solenoid valve 543 opens, and the automatic drain valve 542 automatically drains the sewage according to the pressure and water level in the steam storage tank 2. After the operation is completed, the automatic drain valve 542 automatically closes, and the fourth solenoid valve 543 also closes in the low-pressure state.

[0030] In this embodiment, the first water supply shut-off valve 6, the second water supply shut-off valve 7, the third water supply shut-off valve 8, the first sewage shut-off valve 31, the second sewage shut-off valve 41, the first shut-off valve 511, the third shut-off valve 532, and the fourth shut-off valve 541 are all mechanical rotary shut-off valves. Mechanical rotary shut-off valves have a simple structure and can control the flow of fluid in the pipeline by manually rotating the valve stem, offering advantages such as convenient operation and low cost. Under normal circumstances, the shut-off valve is in the normally open state, connecting the pipelines at both ends. When maintenance of the solenoid valve is required, the corresponding shut-off valve is manually closed, disconnecting the pipelines at both ends of the corresponding shut-off valve to facilitate maintenance of the solenoid valve.

[0031] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A low pressure composite laboratory automated humidification device, characterized by: include: A low-pressure laboratory (1) is provided with a circulating air duct (11), and a humidifying nozzle (12) is provided in the circulating air duct (11). The outside of the humidifying nozzle (12) is connected to a first interface (13). A steam storage tank (2) is provided with a high-temperature steam outlet (21), a high-temperature steam inlet (22), and a sewage outlet (23). The high-temperature steam outlet (21) is connected to a first interface (13) through a pipe, and the sewage outlet (23) is connected to a sewage pipe (231) through a pipe on the outside. Steam generator (3), which is connected to high-temperature steam inlet (22) via a pipeline; A reverse osmosis water purifier (4), wherein the reverse osmosis water purifier (4) is connected to the reverse osmosis water purifier (4) via a pipeline; The control valve group (5) includes a first control valve group (51), a second control valve group (52), a third control valve group (53), and a fourth control valve group (54). The first control valve group (51) is installed on the pipeline between the high-temperature steam outlet (21) and the first interface (13). The second control valve group (52) and the third control valve group (53) are installed sequentially on the pipeline from the high-temperature steam inlet (22) to the steam generator (3). The fourth control valve group (54) is installed on the pipeline between the drain outlet (23) and the drain pipe (231).

2. A low pressure composite laboratory automated humidification device according to claim 1, wherein: The low-pressure laboratory (1) and the steam storage tank (2) are both made of steel pressure vessels. The low-pressure laboratory (1) needs to maintain a low-pressure environment to meet the requirements of the test.

3. A low pressure composite laboratory automated humidification device according to claim 1, wherein: A pressure gauge (24) is provided on the outside of the gas storage tank (2).

4. The low pressure composite laboratory automated humidification device of claim 1, wherein: The steam generator (3) and the reverse osmosis water purifier (4) are connected to the sewage pipe (231) via pipes. The pipes are equipped with a first sewage shut-off valve (31) and a second sewage shut-off valve (41).

5. The low pressure composite laboratory automated humidification device of claim 1, wherein: The first water supply shut-off valve (6) and the second water supply shut-off valve (7) are sequentially installed on the connecting pipe between the steam generator (3) and the reverse osmosis water purifier (4).

6. A low pressure composite laboratory automated humidification device as defined in claim 1, wherein: The reverse osmosis water purifier (4) is connected to a water supply pipe, and a third water supply shut-off valve (8) is installed on the water supply pipe.

7. A low pressure composite laboratory automated humidification device as defined in claim 1, wherein: The pipeline between the steam generator (3) and the steam storage tank (2) is a high-temperature steam pipe.

8. A low pressure composite laboratory automated humidification device as defined in claim 1, wherein: The first control valve group (51) includes a first shut-off valve (511) and a first solenoid valve (512), which are connected in sequence on the pipeline from the high-temperature steam outlet (21) to the first interface (13).

9. A low pressure composite laboratory automated humidification device according to claim 2, wherein: The second control valve group (52) includes a second shut-off valve (521) and a second solenoid valve (522). The third control valve group (53) includes a third solenoid valve (531), a third shut-off valve (532), and a one-way check valve (533). The second shut-off valve (521), the second solenoid valve (522), the third solenoid valve (531), the third shut-off valve (532), and the one-way check valve (533) are connected in sequence on the pipeline between the high-temperature steam inlet (22) and the steam generator (3).

10. The low pressure composite laboratory automated humidification device of claim 4, wherein: The fourth control valve group (54) comprises a fourth stop valve (541), an automatic blowdown valve (542) and a fourth electromagnetic valve (543), which are sequentially arranged on a pipeline between the blowdown outlet (23) and the blowdown pipe (231).

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