Humidifying and water replenishing system

Abstract

The utility model discloses a humidifying and water replenishing system, and belongs to the technical field of environmental test boxes. The humidifying and water replenishing system comprises a water inlet pipeline, a water replenishing cup, a humidifying boiler and a sensor; the water supplementing cup is connected with the water inlet pipeline, and the water inlet pipeline is used for supplementing water into the water supplementing cup; the humidifying boiler is communicated with the water supplementing cup; the sensor is used for detecting humidity and temperature in the box body; when the sensor is an electronic temperature and humidity sensor, the electronic temperature and humidity sensor is installed in the box body. When the sensor is a dry and wet bulb temperature and humidity sensor, the humidifying and water supplementing system further comprises a humidifying water tank, the humidifying water tank is connected with a water inlet pipeline, the water inlet pipeline is used for supplementing water into the humidifying water tank, and the dry and wet bulb temperature and humidity sensor is connected to the wet cotton cloth strip immersed in the humidifying water tank in a sleeving mode. According to the humidifying and water supplementing system, the humidity fluctuation problem in the environment test box can be avoided, the high-precision humidity control requirement of the whole environment test box can be met, and the use requirements of detection scenes of various different types of sensors can be met.

Description

Technical Field

[0001] This utility model relates to the field of environmental test chamber technology, and in particular to a humidification and water replenishment system. Background Technology

[0002] Currently, in the humidification and water replenishment systems of environmental test chambers, low-temperature water is usually directly added to the humidification boiler. This results in a decrease in the water temperature and a larger water flow rate in the humidification boiler, leading to large fluctuations in the humidification output of the boiler. Consequently, humidity fluctuations occur within the environmental test chamber, failing to meet the high-precision humidity control requirements of environmental test chambers. Furthermore, current humidification and water replenishment systems are typically only suitable for wet-bulb and dry-bulb temperature and humidity sensors, and cannot meet the needs of customers for various application scenarios of different types of sensors.

[0003] To address the above issues, a humidification and water replenishment system is urgently needed. Utility Model Content

[0004] The purpose of this invention is to propose a humidification and water replenishment system that can avoid humidity fluctuations within the chamber, meet the high-precision humidity control requirements of the entire environmental test chamber, and meet the usage needs of various types of sensors in different detection scenarios.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A humidification and water replenishment system, located inside the environmental test chamber, includes:

[0007] Water inlet pipe;

[0008] A water replenishment cup, which is connected to the water inlet pipe, and the water inlet pipe is used to replenish water into the water replenishment cup;

[0009] A humidifying boiler is connected to the water supply cup;

[0010] Sensors are used to detect the humidity and temperature inside the enclosure;

[0011] The sensor is an electronic temperature and humidity sensor, which is installed inside the enclosure.

[0012] The sensor is a wet-bulb and dry-bulb temperature and humidity sensor. The humidification and water replenishment system also includes a humidification water tank, which is connected to the water inlet pipe. The water inlet pipe is used to replenish water into the humidification water tank, and the wet-bulb and dry-bulb temperature and humidity sensor is sleeved on a wet cotton strip that is immersed in the humidification water tank.

[0013] As an optional solution, the water inlet pipe includes:

[0014] The first water inlet pipe has one end connected to an external water source;

[0015] A manual pressure reducing valve is connected to the first water inlet pipe;

[0016] The sensor is the wet and dry bulb temperature and humidity sensor. The water inlet pipe also includes a first three-way valve. The other end of the first water inlet pipe is connected to the inlet of the first three-way valve. The first outlet of the first three-way valve is connected to the humidification water tank through a first solenoid valve. The second outlet of the first three-way valve is connected to the water replenishment cup through a second solenoid valve.

[0017] The sensor is the electronic temperature and humidity sensor, and the water inlet pipeline also includes a water inlet solenoid valve, which is connected between the manual pressure reducing valve and the water replenishment cup.

[0018] As an optional solution, the water inlet pipe includes:

[0019] An automatic water inlet circuit includes a second water inlet pipe, a manual shut-off valve, and a second three-way valve. One end of the second water inlet pipe is connected to an external water source. The manual shut-off valve is connected to the second water inlet pipe. The other end of the second water inlet pipe is connected to the first inlet of the second three-way valve. The outlet of the second three-way valve is connected to the water supply cup through a third solenoid valve.

[0020] The manual water inlet circuit includes a flow switch, a first pump, and a water storage tank. The first pump is connected between the flow switch and the water storage tank. The first pump is used to pump water into the water storage tank, and the second inlet of the second three-way valve is connected to the water storage tank through a booster pump.

[0021] As an optional solution, the water storage tank is equipped with a universal float switch, which is used to monitor the lowest water level in the water storage tank and issue a water shortage alarm signal.

[0022] The water supply cup is equipped with an upper float switch and a lower float switch. The upper float switch is used to monitor the highest water level in the water supply cup to allow water to enter the humidifying boiler. The lower float switch is used to monitor the lowest water level in the water supply cup to issue a water shortage alarm signal.

[0023] As an optional solution, a first check valve is connected between the booster pump and the second three-way valve. The first check valve is used to restrict water from being pumped unidirectionally from the booster pump to the second three-way valve.

[0024] As an optional solution, the sensor is the wet-bulb and dry-bulb temperature and humidity sensor. A second pump, a second one-way valve, and a third three-way valve are connected sequentially between the water storage tank and the humidification water tank. The second one-way valve is used to restrict water from being pumped unidirectionally from the second pump to the inlet of the third three-way valve. The first outlet of the third three-way valve is connected to the inlet of the humidification water tank. The second outlet of the third three-way valve is connected to an overflow hose, which is vertically bent and extends to the outside of the tank.

[0025] As an optional solution, along the Z-axis, the distance h1 between the inlet of the humidifying water tank and the overflow hose is ≥200mm.

[0026] As an optional solution, along the X-axis, the distance h2 between the first outlet of the third three-way valve and the inlet of the humidifying water tank is ≤250mm.

[0027] As an optional solution, along the X-axis, the distance h3 between the outlet of the second one-way valve and the inlet of the third three-way valve is 40±10mm.

[0028] As an optional solution, the humidification and water replenishment system also includes:

[0029] Straighten the hose, and connect its two ends to the water supply cup and the humidifying boiler, respectively;

[0030] An exhaust pipe is connected at one end to the humidifying boiler and at the other end to the outside of the housing.

[0031] The beneficial effects of this utility model are as follows:

[0032] By supplying water to the water replenishment cup through the inlet pipe, the humidifying boiler is connected to the water replenishment cup, allowing the water replenishment cup to supply water to the humidifying boiler. Since the water in the inlet pipe first enters the water replenishment cup, the water undergoes a buffering process before entering the humidifying boiler. Compared to existing technologies that directly supply low-temperature water to the humidifying boiler, this method ensures that the water temperature entering the humidifying boiler is not too low and the water flow rate is not too fast. This guarantees a more gradual increase in water temperature and flow rate within the humidifying boiler, avoiding fluctuations in humidification output and thus preventing humidity fluctuations within the chamber. This meets the high-precision humidity control requirements of the entire environmental test chamber. Furthermore, when the sensor is an electronic temperature and humidity sensor, the electronic temperature and humidity... The temperature sensor can be directly installed inside the chamber, eliminating the need for an additional humidification tank for sensor installation. This simplifies the overall structure of the humidification and water replenishment system. When the sensor is a wet-bulb / dry-bulb temperature and humidity sensor, the system also includes a humidification tank. Water is supplied to the tank via the inlet pipe, allowing the wet-bulb / dry-bulb temperature and humidity sensor to be fitted onto a damp cotton strip submerged in the tank, ensuring its normal detection function. In other words, this humidification and water replenishment structure simultaneously accommodates the humidification and water replenishment needs of both electronic and wet-bulb / dry-bulb temperature and humidity sensors. This enhances the applicability and flexibility of the environmental test chamber, enabling it to meet the testing requirements of various sensor types. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the humidification and water replenishment system provided by this utility model (the sensor is a wet-bulb and dry-bulb temperature and humidity sensor, and the water inlet pipeline includes an automatic water inlet circuit and a manual water inlet circuit). Figure 1 ;

[0034] Figure 2 This is a schematic diagram of the humidification and water replenishment system provided by this utility model (the sensor is a wet-bulb and dry-bulb temperature and humidity sensor, and the water inlet pipeline includes a first water inlet pipe and a manual pressure reducing valve). Figure 2 ;

[0035] Figure 3 This is a schematic diagram of the humidification and water replenishment system provided by this utility model (the sensor is an electronic temperature and humidity sensor, and the water inlet pipeline includes an automatic water inlet circuit and a manual water inlet circuit). Figure 3 ;

[0036] Figure 4 This is a schematic diagram of the humidification and water replenishment system provided by this utility model (the sensor is an electronic temperature and humidity sensor, and the water inlet pipeline includes a first water inlet pipe and a manual pressure reducing valve). Figure 4 .

[0037] Explanation of reference numerals in the attached figures:

[0038] 1-Water filling cup; 11-Overflow spout; 12-Overflow pipe;

[0039] 2-Humidifying boiler; 3-Humidifying water tank;

[0040] 41-First inlet pipe; 42-Manual pressure reducing valve; 43-First three-way valve; 44-First solenoid valve; 45-Second solenoid valve; 46-Inlet solenoid valve;

[0041] 51-Second inlet pipe; 52-Manual shut-off valve; 53-Second three-way valve; 54-Third solenoid valve;

[0042] 6-Manual water inlet circuit; 61-Flow switch; 62-First pump; 63-Water storage tank;

[0043] 7-Boost water pump; 8-First check valve; 9-Second pump; 10-Second check valve; 13-Third three-way valve; 14-Overflow hose; 15-Straightening hose; 16-Exhaust pipe; 17-Drainage pipe; 18-Drain hole. Detailed Implementation

[0044] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0045] Any feature disclosed in this specification, unless specifically stated otherwise, may be replaced by other equivalent or similar features. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features. Throughout this specification, the same reference numerals indicate the same elements.

[0046] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] This embodiment proposes a humidification and water replenishment system and an environmental test chamber including the humidification and water replenishment system. The environmental test chamber also includes a chamber body, and the humidification and water replenishment system is disposed inside the chamber body. This ensures that the humidity inside the chamber remains within a preset test humidity range, thereby guaranteeing the accuracy of the test results for the test specimen inside the chamber. Here, the specific numerical range of the preset test humidity range and the specific structural type of the test specimen are not specifically limited.

[0048] Specifically, such as Figures 1 to 4As shown, the humidification and water replenishment system includes a water inlet pipe, a water replenishment cup 1, a humidification boiler 2, and a sensor. The water replenishment cup 1 is connected to the water inlet pipe, which replenishes water into the cup. The humidification boiler 2 is connected to the water replenishment cup 1. The sensor detects the humidity and temperature inside the chamber. When the sensor is an electronic temperature and humidity sensor, it is installed inside the chamber to ensure its normal detection performance. When the sensor is a wet-bulb / dry-bulb temperature and humidity sensor, the humidification and water replenishment system also includes a humidification water tank 3, which is connected to the water inlet pipe. The water inlet pipe replenishes water into the tank, and the wet-bulb / dry-bulb temperature and humidity sensor is fitted onto a wet cotton strip immersed in the tank to ensure its normal detection performance.

[0049] The humidification and water replenishment system in this embodiment, compared to existing technologies, changes the water inlet method of the humidification boiler 2 and is compatible with two different types of sensors. By first replenishing the water in the inlet pipe into the water replenishment cup 1, the water is buffered in the water replenishment cup 1 before entering the humidification boiler 2. Compared to the existing technology of directly replenishing the humidification boiler 2 with low-temperature water, this ensures that the temperature of the water entering the humidification boiler 2 is not too low and the water flow rate is not too fast. This guarantees a relatively stable water temperature and flow rate in the humidification boiler 2, avoiding fluctuations in the humidification output and thus preventing humidity fluctuations within the chamber. This meets the high-precision humidity control requirements of the entire environmental test chamber. Furthermore, when the sensor is an electronic temperature and humidity sensor... When using a temperature and humidity sensor, the electronic temperature and humidity sensor can be directly installed inside the chamber, eliminating the need for an additional humidification water tank 3 for sensor installation. This simplifies the overall structure of the humidification and water replenishment system. When the sensor is a wet-bulb / dry-bulb temperature and humidity sensor, the humidification and water replenishment system also includes a humidification water tank 3, with the inlet pipe supplying water to the tank. The wet-bulb / dry-bulb temperature and humidity sensor is then fitted onto a damp cotton strip submerged in the tank, ensuring its normal detection function. In other words, this humidification and water replenishment structure simultaneously accommodates the humidification and water replenishment needs of both electronic and wet-bulb / dry-bulb temperature and humidity sensors, resulting in better applicability and flexibility for the environmental test chamber. This allows it to meet the testing requirements of various sensor types. In this embodiment, the humidification and water replenishment system improves the humidity control accuracy of the entire environmental test chamber from ±1% to ±0.5%.

[0050] It is worth noting that the humidifying boiler 2 and the humidifying water tank 3 in this embodiment are common structures in existing humidification and water replenishment systems. Therefore, the working principle of the humidifying boiler 2 and the humidifying water tank 3 will not be described in detail here.

[0051] Furthermore, such as Figures 1 to 4As shown, an overflow port 11 is provided on the water supply cup 1, and an overflow pipe 12 is connected to the overflow port 11. The overflow pipe 12 extends to the outside of the chamber so that water overflowing from the water supply cup 1 can be discharged to the outside of the chamber through the overflow port 11 and the overflow pipe 12, preventing water overflowing from the water supply cup 1 from flowing into the chamber and damaging the test specimen. Since the water supply cup 1 and the humidifying boiler 2 form a communicating vessel, the water level in the water supply cup 1 can always be kept level with the water level in the humidifying boiler 2, thus preventing water from overflowing from the humidifying boiler 2 into the chamber through the overflow port 11 and the overflow pipe 12.

[0052] Specifically, such as Figure 2 and Figure 4 As shown, the water inlet pipeline includes a first water inlet pipe 41 and a manual pressure reducing valve 42; one end of the first water inlet pipe 41 is connected to an external water source; the manual pressure reducing valve 42 is connected to the first water inlet pipe 41 so that the water pressure in the first water inlet pipe 41 can be manually adjusted to make the water pressure more suitable; when the sensor is a wet-bulb and dry-bulb temperature and humidity sensor, such as Figure 2 As shown, the water inlet pipe also includes a first three-way valve 43. The other end of the first water inlet pipe 41 is connected to the inlet of the first three-way valve 43. The first outlet of the first three-way valve 43 is connected to the humidifying water tank 3 through a first solenoid valve 44, so as to automatically replenish water into the humidifying water tank 3. The second outlet of the first three-way valve 43 is connected to the water replenishment cup 1 through a second solenoid valve 45, so as to automatically replenish water into the water replenishment cup 1. When the sensor is an electronic temperature and humidity sensor, such as Figure 4 As shown, the water inlet pipeline also includes a water inlet solenoid valve 46, which is connected between the manual pressure reducing valve 42 and the water replenishment cup 1, so as to automatically replenish water into the water replenishment cup 1.

[0053] like Figure 2 and Figure 4 As shown, by setting up the water inlet pipe with the above structure, it is possible to automatically replenish water to both the water replenishment cup 1 and the humidification water tank 3 simultaneously, or to automatically replenish water to the water replenishment cup 1 alone, thereby meeting the automatic water inlet requirements for humidification. Furthermore, by adopting the automatic water replenishment method, the water entering the first water inlet pipe 41 has a certain pressure, meaning that a pump is not needed to automatically replenish water to the water replenishment cup 1 and the humidification water tank 3, thus making the entire humidification water replenishment system simpler and more rational in structure. The automatic water replenishment inlet is shown below. Figure 2 and Figure 4 The position indicated by arrow A in the diagram.

[0054] And, as Figure 2 As shown, by setting up a mutually cooperating manual pressure reducing valve 42, a first solenoid valve 44, and a second solenoid valve 45, and as shown in the figure, Figure 4As shown, a manual pressure reducing valve 42 and an inlet solenoid valve 46 are configured to work together, combining the manual and electric valves to form a two-layer valve regulation. This allows the manual valve to maintain the normal water pressure and flow rate of the first inlet pipe 41 when the electric valve is damaged and needs maintenance or replacement, resulting in high regulation reliability. The first solenoid valve 44, the second solenoid valve 45, and the inlet solenoid valve 46 can all be common solenoid valves in the prior art, and their structures can be the same or different; no specific limitation is made here.

[0055] In another embodiment, such as Figure 1 and Figure 3 As shown, the water inlet pipeline includes an automatic water inlet circuit and a manual water inlet circuit 6; wherein, the automatic water inlet circuit includes a second water inlet pipe 51, a manual shut-off valve 52, and a second three-way valve 53. One end of the second water inlet pipe 51 is connected to an external water source, and the manual shut-off valve 52 is connected to the second water inlet pipe 51 so that the water pressure in the second water inlet pipe 51 can be manually adjusted to make the water pressure more suitable, and the water flow in the second water inlet pipe 51 can be cut off by the manual shut-off valve 52; the other end of the second water inlet pipe 51 is connected to the first inlet of the second three-way valve 53, and the outlet of the second three-way valve 53 is connected to the water replenishment cup 1 through a third solenoid valve 54 so that water can be automatically replenished into the water replenishment cup 1; as shown Figure 1 and Figure 3 As shown, the manual water inlet circuit 6 includes a flow switch 61, a first pump 62, and a water storage tank 63. The first pump 62 is connected between the flow switch 61 and the water storage tank 63, and is used to pump water into the water storage tank 63 to achieve the function of manually replenishing water into the water storage tank 63. The second inlet of the second three-way valve 53 is connected to the water storage tank 63 through a booster pump 7, so that the booster pump 7 can pump water from the water storage tank 63 to the water replenishment cup 1. Specifically, the first pump 62 can be an electric diaphragm pump, and the flow switch 61 can be a commonly used manual flow switch in the prior art. The automatic water inlet circuit's replenishment inlet is as follows... Figure 1 and Figure 3 The location indicated by arrow A in the diagram is the inlet of the manual water inlet circuit 6. Figure 1 and Figure 3 The position indicated by arrow C in the diagram.

[0056] It is worth noting that, such as Figure 1 and Figure 3 As shown, when manually adding water to the water storage tank 63 by manually opening the water flow switch 61, the water pressure in the water storage tank 63 is relatively low. Therefore, the aforementioned booster pump 7 is needed to stably pump the water from the water storage tank 63 to the water replenishment cup 1.

[0057] By setting up the aforementioned automatic water inlet circuit and manual water inlet circuit 6, two different water inlet methods, automatic and manual, can be provided. Figure 1 and Figure 3 As shown, the automatic water inlet circuit and the manual water inlet circuit 6 can be selected according to the actual humidification and water replenishment needs, which further improves the applicability and flexibility of the entire environmental test chamber, so as to better meet the usage needs of various different water inlet scenarios.

[0058] And, as Figure 1 and Figure 3 As shown, by setting up a manual shut-off valve 52 and a third solenoid valve 54 that cooperate with each other, the manual valve and the electric valve can be combined to form a two-layer valve regulation. This allows the manual shut-off valve 52 to ensure the normal regulation of water pressure and flow rate of the second water inlet pipe 51 when the third solenoid valve 54 is damaged and needs maintenance or replacement, thus making the regulation highly reliable. The third solenoid valve 54 can be a commonly used solenoid valve in existing technology.

[0059] Furthermore, a universal float switch is installed inside the water storage tank 63. This universal float switch monitors the minimum water level in the water storage tank 63 and issues a water shortage alarm signal. That is, when the universal float switch detects that the water level in the water storage tank 63 has dropped to the minimum level, it immediately issues a water shortage alarm signal, allowing the first pump 62 to pump water into the water storage tank 63, thus ensuring that the water storage tank 63 does not experience a water shortage. The universal float switch can be a commonly used float switch in existing technology.

[0060] Specifically, an upper float switch and a lower float switch are installed inside the water supply cup 1. The upper float switch is used to monitor the highest water level in the water supply cup 1 to control the water intake into the humidifying boiler 2. That is, when the upper float switch detects that the water level in the water supply cup 1 has risen to the highest water level, since the water level in the humidifying boiler 2 is always level with the water level in the water supply cup 1, the water level in the humidifying boiler 2 also rises to the highest water level. In other words, the humidifying boiler 2 is now full, and the upper float switch immediately triggers the water intake. A stop signal prevents the booster pump 7 or the second inlet pipe 51 from replenishing water into the water supply cup 1, thus ensuring effective water replenishment to the humidifying boiler 2. The lower float switch monitors the lowest water level in the water supply cup 1 and issues a water shortage alarm signal. That is, when the lower float switch detects that the water level in the water supply cup 1 has dropped to the lowest water level, it immediately issues a water shortage alarm signal, allowing the booster pump 7 or the second inlet pipe 51 to replenish water into the water supply cup 1, ensuring that neither the water supply cup 1 nor the humidifying boiler 2 experiences a water shortage. Both the upper and lower float switches can be common float switches found in existing technologies.

[0061] Furthermore, such as Figure 1 and Figure 3 As shown, a first check valve 8 is connected between the booster pump 7 and the second inlet of the second three-way valve 53. The first check valve 8 is used to restrict water from being pumped unidirectionally from the booster pump 7 to the second three-way valve 53, so as to prevent water in the second inlet pipe 51 from flowing into the water storage tank 63 instead of being automatically supplied into the water replenishment cup 1, thereby ensuring the unidirectionality and reliability of water replenishment into the water replenishment cup 1.

[0062] Furthermore, such as Figure 1 As shown, when the sensor is a wet-bulb and dry-bulb temperature and humidity sensor, a second pump 9, a second one-way valve 10, and a third three-way valve 13 are connected sequentially between the water storage tank 63 and the humidification water tank 3. The second one-way valve 10 is used to restrict the flow of water from the second pump 9 to the inlet of the third three-way valve 13, to ensure the one-way and reliable replenishment of water from the water storage tank 63 into the humidification water tank 3. Furthermore, the first outlet of the third three-way valve 13 is connected to the inlet of the humidification water tank 3, and the second outlet of the third three-way valve 13 is connected to an overflow hose 14, which is vertically bent and extends to the outside of the tank. Specifically, the second pump 9 can be a water replenishment pump.

[0063] like Figure 1 and Figure 2 As shown, by connecting the second outlet of the third three-way valve 13 to an overflow hose 14, and by bending the overflow hose 14 vertically and extending it outside the chamber, water overflowing from the humidification tank 3 can be discharged to the outside of the chamber through the overflow hose 14, thus preventing water overflowing from the humidification tank 3 from flowing into the chamber and damaging the test specimen.

[0064] Furthermore, during the process of controlling the pumping of water to the humidifying water tank 3, the second pump 9 has an interval of 2 minutes between two consecutive starts, and a working water replenishment time of 2 seconds for each start. That is, the humidifying water tank 3 is replenished with water for 2 seconds every 2 minutes, which can better ensure that there is no water shortage in the humidifying water tank 3.

[0065] Furthermore, such as Figure 1 and Figure 2As shown, along the Z-axis, the distance h1 between the inlet of the humidifying water tank 3 and the overflow hose 14 is ≥200mm; and along the X-axis, the distance h2 between the first outlet of the third three-way valve 13 and the inlet of the humidifying water tank 3 is ≤250mm; simultaneously, along the X-axis, the distance h3 between the outlet of the second one-way valve 10 and the inlet of the third three-way valve 13 is 40±10mm; thus, the arrangement spacing and relative positions of the second one-way valve 10, the third three-way valve 13, the humidifying water tank 3, and the overflow hose 14 are relatively reasonable and appropriate; on the one hand, it can ensure that the temperature and rate of the water added into the humidifying water tank 3 are relatively smooth and appropriate, thereby avoiding large fluctuations in the water in the humidifying water tank 3, so as to ensure the detection accuracy of the wet and dry bulb temperature and humidity sensor sleeved on the wet cotton strip immersed in the humidifying water tank 3; on the other hand, it can ensure that the drainage of the overflow hose 14 is relatively smooth and unobstructed, avoiding the problem of water overflowing from the humidifying water tank 3 being blocked in the overflow hose 14.

[0066] Specifically, such as Figures 1 to 4 As shown, the humidification and water replenishment system also includes a straightening hose 15, with both ends of the straightening hose 15 connected to the water replenishment cup 1 and the humidification boiler 2, respectively. That is, the straightening hose 15 between the water replenishment cup 1 and the humidification boiler 2 is always in a straight state, so as to better ensure the connection effect between the water replenishment cup 1 and the humidification boiler 2, thereby ensuring that the water level in the water replenishment cup 1 is always level with the water level in the humidification boiler 2.

[0067] Specifically, such as Figures 1 to 4 As shown, the humidification and water replenishment system also includes an exhaust pipe 16. One end of the exhaust pipe 16 is connected to the humidification boiler 2, and the other end extends to the outside of the casing to enable the exhaust function of the humidification boiler 2 and ensure the normal humidification performance of the humidification boiler 2. The length of the exhaust pipe 16 is greater than 40cm.

[0068] Furthermore, such as Figure 1 and Figure 2 As shown, the humidification and water replenishment system also includes a drain pipe 17. One end of the drain pipe 17 is connected to the humidification water tank 3, and the other end of the drain pipe 17 extends to the outside of the tank after passing through the drain hole 18 inside the tank, so as to realize the drainage function of the humidification water tank 3, so as to drain the remaining water in the humidification water tank 3 after use, so as to ensure the cleanliness of the humidification water tank 3, and thus facilitate the next use of the humidification water tank 3.

[0069] By configuring the exhaust pipe 16 and drain pipe 17, the generated gas and water can be discharged outside the chamber and will not flow back into the chamber, thus ensuring the cleanliness of the chamber. In other words, the gas and wastewater generated during humidification and water replenishment will not circulate within the chamber, preventing contaminated gas and water from flowing into the chamber and contaminating the test specimens, thereby improving the test pass rate of the test specimens. The specific outlets of the exhaust pipe 16 and drain pipe 17 are as follows: Figures 1 to 4 The position indicated by arrow B in the diagram.

[0070] It is worth noting that the first three-way valve 43, the second three-way valve 53, and the third three-way valve 13 mentioned above can all be three-way valves commonly used in the prior art; and all the connections mentioned above can be made through connecting pipes.

[0071] The specific working process of the humidification and water replenishment system in this embodiment is as follows, and the specific flow directions of water and gas in the humidification and water replenishment system are as follows: Figures 1 to 4 The arrows in the diagram indicate the directions, that is, the water and gas follow... Figures 1 to 4 The arrows shown represent the flow of water inflow and outflow:

[0072] For example Figure 1 As shown, when the sensor is a wet-bulb and dry-bulb temperature and humidity sensor, and the water inlet pipe includes an automatic water inlet circuit and a manual water inlet circuit 6:

[0073] When water is automatically added:

[0074] First, water with a certain pressure is automatically introduced into the second water inlet pipe 51, and the pressure of the water in the second water inlet pipe 51 is manually adjusted by the manual shut-off valve 52; then, the water in the second water inlet pipe 51 is sequentially introduced into the water supply cup 1 through the second three-way valve 53 and the third solenoid valve 54 to automatically replenish the water supply cup 1; and the water in the water supply cup 1 flows into the humidifying boiler 2 to replenish the humidifying boiler 2.

[0075] At the same time, the water pumped into the water storage tank 63 by the second pump 9 flows into the humidification water tank 3 after passing through the second one-way valve 10 and the third three-way valve 13 in sequence, so as to replenish the humidification water tank 3.

[0076] When manually filling with water:

[0077] First, close the manual shut-off valve 52 to stop the second water inlet pipe 51 from replenishing water into the water replenishment cup 1. At this time, manually open the water flow switch 61 and make the first pump 62 pump water into the water storage tank 63 to manually replenish water into the water storage tank 63. Then, make the booster pump 7 pump out the water from the water storage tank 63 and pass through the first one-way valve 8, the second three-way valve 53 and the third solenoid valve 54 in sequence to replenish water into the water replenishment cup 1 to manually replenish water into the water replenishment cup 1. Then, make the water in the water replenishment cup 1 flow into the humidifying boiler 2 to replenish water into the humidifying boiler 2.

[0078] At the same time, the water pumped into the water storage tank 63 by the second pump 9 flows into the humidification water tank 3 after passing through the second one-way valve 10 and the third three-way valve 13 in sequence, so as to replenish the humidification water tank 3.

[0079] like Figure 2 As shown, when the sensor is a wet-bulb and dry-bulb temperature and humidity sensor, and the water inlet pipe includes a first water inlet pipe 41 and a manual pressure reducing valve 42 for automatic water intake:

[0080] First, water with a certain pressure is automatically introduced into the first water inlet pipe 41, and the pressure of the water in the first water inlet pipe 41 is manually adjusted by the manual pressure reducing valve 42; then, the water in the first water inlet pipe 41 is sequentially introduced into the water replenishment cup 1 through the first three-way valve 43 and the second solenoid valve 45 to automatically replenish the water in the water replenishment cup 1; and the water in the water replenishment cup 1 flows into the humidifying boiler 2 to replenish the water in the humidifying boiler 2.

[0081] At the same time, the water in the first water inlet pipe 41 is sequentially fed into the humidifying water tank 3 through the first three-way valve 43, the first solenoid valve 44, the second one-way valve 10 and the third three-way valve 13, so as to replenish the humidifying water tank 3.

[0082] like Figure 3 As shown, when the sensor is an electronic temperature and humidity sensor, and the water inlet pipe includes an automatic water inlet circuit and a manual water inlet circuit 6:

[0083] When water is automatically added:

[0084] First, water with a certain pressure is automatically introduced into the second water inlet pipe 51, and the pressure of the water in the second water inlet pipe 51 is manually adjusted by the manual shut-off valve 52; then, the water in the second water inlet pipe 51 is sequentially introduced into the water supply cup 1 through the second three-way valve 53 and the third solenoid valve 54 to automatically replenish the water supply cup 1; and the water in the water supply cup 1 flows into the humidifying boiler 2 to replenish the humidifying boiler 2.

[0085] When manually filling with water:

[0086] First, close the manual shut-off valve 52 to stop the second water inlet pipe 51 from replenishing water into the water replenishment cup 1. At this time, manually open the water flow switch 61 and make the first pump 62 pump water into the water storage tank 63 to manually replenish water into the water storage tank 63. Then, make the booster pump 7 pump out the water from the water storage tank 63 and pass through the first one-way valve 8, the second three-way valve 53 and the third solenoid valve 54 in sequence to replenish water into the water replenishment cup 1 to manually replenish water into the water replenishment cup 1. Then, make the water in the water replenishment cup 1 flow into the humidifying boiler 2 to replenish water into the humidifying boiler 2.

[0087] like Figure 4 As shown, when the sensor is an electronic temperature and humidity sensor, and the water inlet pipe includes a first water inlet pipe 41 and a manual pressure reducing valve 42 for automatic water intake:

[0088] First, water with a certain pressure is automatically introduced into the first water inlet pipe 41, and the pressure of the water in the first water inlet pipe 41 is manually adjusted by the manual pressure reducing valve 42; then, the water in the first water inlet pipe 41 is introduced into the water replenishment cup 1 through the water inlet solenoid valve 46 to automatically replenish the water in the water replenishment cup 1; and the water in the water replenishment cup 1 flows into the humidifying boiler 2 to replenish the water in the humidifying boiler 2.

[0089] In this embodiment, the humidification and water replenishment system buffers the water in the water inlet pipe in the water replenishment cup 1 before entering the humidification boiler 2, thereby avoiding fluctuations in the humidification output of the humidification boiler 2 and improving the humidity control accuracy of the entire environmental test chamber from ±1% to ±0.5%.

[0090] The humidification and water replenishment system in this embodiment is compatible with the humidification and water replenishment needs of both electronic temperature and humidity sensors and wet-bulb and dry-bulb temperature and humidity sensors. At the same time, it is compatible with both automatic and manual water replenishment methods. As a result, the environmental test chamber has good applicability and flexibility, which can meet the needs of various detection scenarios of different types of sensors and various water inlet methods.

[0091] In this embodiment, the humidification and water replenishment system, by setting an exhaust pipe 16 and a drainage pipe 17 extending to the outside of the chamber, can effectively avoid water pollution inside the chamber and reduce the impact of the entire humidification and water replenishment system on the test specimens inside the chamber, thereby improving the test pass rate of the test specimens.

[0092] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A humidifying and moisturizing system, which is arranged in a cabinet of an environmental test chamber, characterized in that, include: Water inlet pipe; A water replenishment cup (1) is connected to the water inlet pipe, and the water inlet pipe is used to replenish water into the water replenishment cup (1); A humidifying boiler (2) is connected to the water supply cup (1); Sensors are used to detect the humidity and temperature inside the enclosure; The sensor is an electronic temperature and humidity sensor, which is installed inside the enclosure. The sensor is a wet-bulb and dry-bulb temperature and humidity sensor. The humidification and water replenishment system also includes a humidification water tank (3). The humidification water tank (3) is connected to the water inlet pipe. The water inlet pipe is used to replenish water into the humidification water tank (3). The wet-bulb and dry-bulb temperature and humidity sensor is sleeved on a wet cotton cloth strip that is immersed in the humidification water tank (3).

2. The humidification system of claim 1, wherein the water reservoir is configured to be filled with water. The water inlet pipe includes: The first water inlet pipe (41) has one end connected to an external water source; Manual pressure reducing valve (42), which is connected to the first water inlet pipe (41); The sensor is the wet and dry bulb temperature and humidity sensor. The water inlet pipe also includes a first three-way valve (43). The other end of the first water inlet pipe (41) is connected to the inlet of the first three-way valve (43). The first outlet of the first three-way valve (43) is connected to the humidification water tank (3) through a first solenoid valve (44). The second outlet of the first three-way valve (43) is connected to the water replenishment cup (1) through a second solenoid valve (45). The sensor is the electronic temperature and humidity sensor, and the water inlet pipeline also includes a water inlet solenoid valve (46), which is connected between the manual pressure reducing valve (42) and the water replenishment cup (1).

3. The humidification system of claim 1, wherein the water reservoir is configured to be filled with water from a water source. The water inlet pipe includes: The automatic water inlet circuit includes a second water inlet pipe (51), a manual shut-off valve (52), and a second three-way valve (53). One end of the second water inlet pipe (51) is connected to an external water source. The manual shut-off valve (52) is connected to the second water inlet pipe (51). The other end of the second water inlet pipe (51) is connected to the first inlet of the second three-way valve (53). The outlet of the second three-way valve (53) is connected to the water supply cup (1) through a third solenoid valve (54). The manual water inlet circuit (6) includes a flow switch (61), a first pump (62) and a water storage tank (63). The first pump (62) is connected between the flow switch (61) and the water storage tank (63). The first pump (62) is used to pump water into the water storage tank (63), and the second inlet of the second three-way valve (53) is connected to the water storage tank (63) through a booster pump (7).

4. The humidification system of claim 3, wherein the water reservoir is configured to be filled with water from a water source. The water storage tank (63) is equipped with a universal float switch, which is used to monitor the lowest water level in the water storage tank (63) and issue a water shortage alarm signal. The water supply cup (1) is equipped with an upper float switch and a lower float switch. The upper float switch is used to monitor the highest water level in the water supply cup (1) to supply water to the humidifying boiler (2). The lower float switch is used to monitor the lowest water level in the water supply cup (1) to issue a water shortage alarm signal.

5. The humidification system of claim 3, wherein the water reservoir is configured to be filled with water from a water source. A first check valve (8) is connected between the booster pump (7) and the second three-way valve (53). The first check valve (8) is used to restrict water from being pumped unidirectionally from the booster pump (7) to the second three-way valve (53).

6. The humidification system of claim 3, wherein the water reservoir is configured to be filled with water from a water source. The sensor is the wet and dry bulb temperature and humidity sensor. The water storage tank (63) and the humidification water tank (3) are connected in sequence by a second pump (9), a second one-way valve (10) and a third three-way valve (13). The second one-way valve (10) is used to restrict water from being pumped unidirectionally from the second pump (9) to the inlet of the third three-way valve (13). The first outlet of the third three-way valve (13) is connected to the water inlet of the humidification water tank (3). The second outlet of the third three-way valve (13) is connected to an overflow hose (14). The overflow hose (14) is vertically bent and extends to the outside of the box.

7. The humidification system of claim 6, wherein the water reservoir is configured to be filled with water from a water source. Along the Z-axis, the distance h1 between the inlet of the humidifying water tank (3) and the overflow hose (14) is ≥200mm.

8. The humidification system of claim 6, wherein the water reservoir is configured to be filled with water from a water source. Along the X-axis, the distance h2 between the first outlet of the third three-way valve (13) and the inlet of the humidifying water tank (3) is ≤250mm.

9. The humidification system of claim 6, wherein the water reservoir is configured to be filled with water from a water source. Along the X-axis, the distance h3 between the outlet of the second one-way valve (10) and the inlet of the third three-way valve (13) is 40 ± 10 mm.

10. The humidification system of any one of claims 1-9, wherein, The humidification and water replenishment system also includes: Straighten the hose (15), and connect its two ends to the water supply cup (1) and the humidifying boiler (2) respectively; An exhaust pipe (16) is connected at one end to the humidifying boiler (2) and at the other end to the outside of the housing.

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