A large temperature range humidity conditioning system with a pressure water compensation circuit

Abstract

The application discloses a large-temperature-range humidity adjusting system with a pressure water compensation circuit, which comprises a water supply system, a pressure compensation pipeline, a multi-way component, a gas-liquid sample multi-way component, an evaporation saturation temperature control system and a water storage tank. The pressure compensation pipeline is connected with the input end of the evaporation saturation temperature control system through the multi-way component and the gas-liquid sample multi-way component and the output end of the evaporation saturation temperature control system is connected with the pressure compensation end of the water supply system. The output end of the evaporation saturation temperature control system is communicated with the gas phase interval in the water storage tank in the water supply system through a pipeline. The passive bubbling evaporation saturation mode is changed into forced active mixed evaporation in the porous medium, the evaporation in each temperature range is strengthened and stabilized, the evaporation saturation area is separated from the water storage tank, the size of the evaporation saturation area is minimized, the temperature control difficulty is reduced, the temperature control precision is improved, and the external water tank is supplemented with water without disturbing the temperature stability of the evaporation area.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of environmental simulation, and particularly to a large-temperature-range humidity conditioning system with a pressure water compensation circuit. BACKGROUND

[0002] Various products used in industrial production and daily life mostly need to be tested for stability and reliability in specific temperature and humidity environments, which cover scenarios such as winter, summer, coastal areas, jungles, and the like. This requires that the corresponding test equipment be able to simulate a very large temperature and humidity range, from several tens of degrees below zero to nearly 100 degrees Celsius.

[0003] The three major mainstream methods of generating temperature and humidity do not have an automatic compensation mechanism or device for the amount of water entering the evaporation link, so a way and method of automatically compensating for the amount of water need to be found. SUMMARY

[0004] Therefore, at least one of the above-mentioned defects in the prior art needs to be overcome, and the present application provides a large-temperature-range humidity conditioning system with a pressure water compensation circuit, which comprises a water supply system, a pressure compensation pipeline connecting an input end of an evaporation saturation temperature control system with a pressure compensation end of the water supply system through a multi-way component and a gas-liquid sampling multi-way component, and an output end of the evaporation saturation temperature control system being communicated with a gas phase interval in a water storage tank in the water supply system through a pipeline.

[0005] In addition, the large-temperature-range humidity conditioning system with a pressure water compensation circuit according to the present application also has the following additional technical features.

[0006] Further, the multi-way component is a three-way component, the gas-liquid sampling multi-way component is a gas-liquid sampling three-way component, the water return output end of the evaporation saturation temperature control system is connected to the liquid inlet end of the gas-liquid sampling three-way component through the third end of the three-way component and the second end of the three-way component, and enters the evaporation saturation temperature control system through the gas-liquid mixing end of the gas-liquid sampling three-way component, forming a water return circuit.

[0007] The circulating pump is set to a constant flow rate, the height of the inlet of the circulating pump is set below or near the lower limit of the water level in the water storage tank, and a three-way component is arranged at the inlet of the circulating pump, which is connected to the circulating pump, the saturated evaporation zone water return, and the water storage tank in the order shown in Figure 4 This has the advantages that the water is continuously and adaptively supplemented, a little is consumed and a little is supplemented, and temperature fluctuations are not caused by intermittent and large amounts of supplement, and the excess water returns to the inlet three-way component of the circulating pump by gravity for further circulation.

[0008] Further, the water supply system comprises a water storage tank, an output end of the evaporation saturation temperature control system is connected with a pressure compensation end of the water storage tank through a pressure compensation pipeline, and an output end of the water storage tank is connected with a first end of the multi-way component, and further connected with an input end of the evaporation saturation temperature control system, so as to form a pressure compensation loop.

[0009] In the pressure compensation loop, a pipe is arranged at an outlet of the saturator to connect the water storage tank in pressure. Otherwise, the water storage tank cannot automatically supply water to the circulating pump by gravity, so that the circulating pump can only pump back water (or empty circulation).

[0010] Further, a circulating power source is arranged between the multi-way component and the gas-liquid sampling multi-way component, an input end of the circulating power source is connected with a second end of the multi-way component, an output end of the circulating power source is connected with an input end of the gas-liquid sampling multi-way component, the circulating power source is connected with the water supply system comprising the water storage tank through the first end of the multi-way component, and connected with the backwater output end of the evaporation saturation temperature control system through the second end of the multi-way component.

[0011] Still further, the circulating power source is a circulating water pump.

[0012] Still further, an input port of the circulating power source is lower than or equal to a lower limit water level of the water supply system.

[0013] Still further, the multi-way component comprises a first end connected with the water supply system, a second end connected with the circulating power source, and a third end connected with the backwater output end of the evaporation saturation temperature control system, and the saturator further comprises a multi-way component control system for controlling the multi-way component to preferentially pump back water of the backwater output end of the evaporation saturation temperature control system.

[0014] Further, the evaporation saturation temperature control system comprises a porous medium, a thermostat module, a gas-liquid separator connected with the porous medium, a gas-liquid mixing end of the gas-liquid sampling multi-way component is connected with an input end of the porous medium, the gas-liquid separator comprises a wet gas output end and a backwater end, and the backwater end is connected with the backwater output end of the evaporation saturation temperature control system.

[0015] Further, the porous medium and the gas-liquid separator are arranged in the thermostat module.

[0016] Still further, the evaporation saturation temperature control system comprises a porous medium, and the porous medium comprises an evaporation strengthening and stabilizing area.

[0017] Further, the evaporation saturation temperature control system comprises a constant temperature module, the constant temperature module is solidified into an integrated structure by liquid aluminum casting of the heating pipe, the porous medium evaporation area and the gas-liquid separator, the constant temperature module is connected with a first end of a four-way joint, a second end of the four-way joint outputs saturated moisture, a third end of the four-way joint is connected with a gas phase space in a water storage tank in the water supply system, a fourth end of the four-way joint is connected with the water return end, and the four-way joint is connected with a temperature measuring component for feeding back the constant temperature module.

[0018] The technical scheme of the present application is to change the passive bubble evaporation saturation mode into forced active mixing evaporation in the porous medium, to strengthen and stabilize the evaporation in each temperature range, to separate the evaporation saturation area from the water storage tank, to minimize the size of the evaporation saturation area, to reduce the temperature control difficulty and to improve the temperature control precision, and to increase the water supply from the external water tank without disturbing the temperature stability of the evaporation area.

[0019] Additional aspects and advantages of the present application will be better understood from the following descriptions with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 Prior art bubble-type saturator schematic diagram;

[0022] Figure 2 An embodiment schematic diagram of the present application;

[0023] Figure 3 An embodiment schematic diagram of the evaporation saturation temperature control system of the present application;

[0024] Figure 4 An embodiment schematic diagram of the multi-way component connection mode of the present application;

[0025] Figure 5 An embodiment schematic diagram of the present application for humidity at normal temperature, temperature and humidity output curve, horizontal coordinate time, vertical coordinate temperature and humidity, C1 output temperature, C2 output humidity;

[0026] Figure 6 An embodiment schematic diagram of the present application for temperature and humidity output curve near boiling point (92℃), vertical coordinate temperature and humidity, horizontal coordinate time, C1 output temperature, C2 output humidity;

[0027] Wherein, A saturated humidity gas output, B carrier gas gas path, 1 water supply system, 12 water supply system pressure compensation end, 11 water storage tank, 2 multi-way component, 21 multi-way component first end, 22 multi-way component second end, 23 multi-way component third end / return water end, 3 evaporation saturated temperature control system, 30 four-way, 301 four-way first end, 31 evaporation saturated temperature control system input end, 32 evaporation saturated temperature control system return water output end / four-way fourth end, 33 saturated humidity gas output end / four-way second end, 34 gas-liquid separator, 35 porous medium, 36 constant temperature module, 37 evaporation saturated temperature control system pressure compensation end / four-way third end 4 gas-liquid sampling multi-way component, 41 gas inlet end, 42 liquid inlet end, 43 gas-liquid mixing end, 5 circulating power source, 6 pressure compensation pipeline, 7 return water circuit. DETAILED DESCRIPTION

[0028] Embodiments of the present application will be described in detail below with reference to the drawings, wherein the same or similar reference numerals represent the same or similar elements throughout the drawings. The embodiments described below by reference to the drawings are exemplary only, and are intended to explain the present application, but cannot be interpreted as limiting the present application.

[0029] The optimized spectral data analysis method of the present application will be described below with reference to the drawings, wherein Figure 1 Prior art schematic diagram of the bubbling saturator; Figure 2 Schematic diagram of one embodiment of the present application; Figure 3 Schematic diagram of the evaporation saturated temperature control system in one embodiment of the present application; Figure 4 Schematic diagram of the circulating power source pipeline connection mode in one embodiment of the present application; Figure 5 Schematic diagram of the temperature and humidity output curve of the saturator in one embodiment of the present application, wherein the horizontal coordinate is time, and the vertical coordinate is temperature and humidity, C1 is the output temperature, and C2 is the output humidity. Figure 6 Schematic diagram of the temperature and humidity output curve of the saturator in one embodiment of the present application, wherein the vertical coordinate is temperature and humidity, the horizontal coordinate is time, C1 is the output temperature, and C2 is the output humidity.

[0030] According to the embodiments of the present application, as Figure 2 As shown in the figure, the saturator comprises a water supply system, a pressure compensation pipeline connecting the output end of an evaporation saturated temperature control system and a pressure compensation end of the water supply system, and a multi-way component and a gas-liquid sampling multi-way component connecting the input end of the evaporation saturated temperature control system and the water supply system. The gas phase interval in the water storage tank in the water supply system is communicated with the output end of the evaporation saturated temperature control system through the pipeline.

[0031] According to some embodiments of the present application, a water supply system is connected to an input end of an evaporation saturation temperature control system through a multi-way component and a gas-liquid sampling multi-way component, a pressure compensation pipeline is connected between an output end of the evaporation saturation temperature control system and a pressure compensation end of the water supply system, the gas-liquid sampling multi-way component comprises an air inlet end, a gas-liquid mixing end and a liquid inlet end, the water supply system is connected to the liquid inlet end of the gas-liquid sampling multi-way component through a first end of the multi-way component and a second end of the multi-way component, the air inlet end is connected to a carrier gas supply system, the gas-liquid mixing end is connected to the input end of the evaporation saturation temperature control system, and a backwater output end of the evaporation saturation temperature control system is connected to a backwater end of the multi-way component.

[0032] According to some embodiments of the present application, the multi-way component is a three-way component, the gas-liquid sampling multi-way component is a gas-liquid sampling three-way component, and the backwater output end of the evaporation saturation temperature control system is connected to a liquid inlet end of the gas-liquid sampling three-way component through a third end of the three-way component and a second end of the three-way component, and enters the evaporation saturation temperature control system through the gas-liquid mixing end of the gas-liquid sampling three-way component to form a backwater loop.

[0033] According to some embodiments of the present application, the water supply system comprises a water storage tank, the output end of the evaporation saturation temperature control system is connected to a pressure compensation end of the water storage tank through a pressure compensation pipeline, and is connected to the first end of the multi-way component through an output end of the water storage tank and is further connected to the input end of the evaporation saturation temperature control system to form a pressure compensation loop, and the output end of the evaporation saturation temperature control system being connected to the pressure compensation end of the water storage tank means that the output end is connected to a meteorological part in the water storage tank to form the same pressure atmosphere.

[0034] According to some embodiments of the present application, a circulating power source is arranged between the multi-way component and the gas-liquid sampling multi-way component, an input end of the circulating power source is connected to the second end of the multi-way component, and an output end of the circulating power source is connected to an input end of the gas-liquid sampling multi-way component, the circulating power source is connected to the water supply system comprising the water storage tank through the first end of the multi-way component and is connected to the backwater output end of the evaporation saturation temperature control system through the second end of the multi-way component.

[0035] According to some embodiments of the present application, the circulating power source is a circulating water pump, and an input port of the circulating water pump is arranged at a height lower than or equal to a lower limit water level of the water supply system.

[0036] According to some embodiments of the present application, the multi-way component includes a first end in communication with the water supply system, a second end in communication with the circulating power source, and a third end in communication with the evaporative saturation temperature control system return water output, and the saturator further includes a multi-way component control system that controls the multi-way component to preferentially draw return water from the evaporative saturation temperature control system return water output section.

[0037] According to some embodiments of the present application, the evaporative saturation temperature control system includes a porous medium, a thermostatic module, a gas-liquid separator associated with the porous medium, the gas-liquid mixing end of the gas-liquid sampling multi-way component is associated with the input end of the porous medium, the gas-liquid separator includes a moisture output end and a return water end, and the return water end is associated with the evaporative saturation temperature control system return water output end.

[0038] According to some embodiments of the present application, the porous medium and the gas-liquid separator are disposed in the thermostatic module, and the evaporative saturation temperature control system includes a porous medium that includes an evaporation enhancement and stabilization zone.

[0039] According to some embodiments of the present application, the evaporative saturation temperature control system includes a thermostatic module that is integrally formed by liquid aluminum casting of a heating tube, a porous medium evaporation zone, and a gas-liquid separator, the thermostatic module is associated with a four-way first end, the four-way second end outputs saturated moisture, the four-way third end is associated with a gas phase space in a water storage tank in the water supply system, the four-way fourth end is associated with the return water end, and the four-way is associated with a temperature measuring component that feeds back the thermostatic module. The temperature measuring component transmits the temperature of the thermostatic module to a control unit, and the control unit controls the temperature of the thermostatic module.

[0040] According to one embodiment of the present application, the heating tube, the porous medium evaporation zone, and the gas-liquid separator are integrally formed by liquid aluminum casting. Due to the high thermal conductivity of aluminum, this block is used as a thermostatic module; the outlet of the thermostatic module has a stainless steel four-way that respectively leads out saturated moisture and is connected to the water storage tank for pressure compensation. The four-way has a temperature measuring thermocouple in the vertical direction to control the temperature of the thermostatic module; the circulating pump uses a peristaltic pump with a circulating flow rate of 2-30 mL / min; when the water level in the water storage tank is higher than the bottom water supplement port, the water can be automatically supplemented from the bottom.

[0041] According to one embodiment of the present application, the saturator is installed in a double-stream humidity generator. At room temperature (about 26℃), the humidity fluctuation of the humidity generator output is about ±0.1% (reading, see Figure 5 ). At a temperature close to the boiling point of water (about 92℃), the humidity fluctuation is only ±1.5% (reading, see Figure 6 ), while using a common saturator, the humidity fluctuation reaches 30-50%.

[0042] At the same time, the saturator is tested at lower temperature (in a cryostat) and also has much better performance than the traditional saturator.

[0043] According to one embodiment of the present application, a circulating water pump pumps water into the gas-liquid sampling tee. The flow rate of the circulating water pump must be greater than the maximum evaporation required for saturation. At the same time, dry carrier gas (usually air, but other gases can also be used) also enters the tee and mixes with the water for the first time. The resulting gas-water mixture enters the saturated evaporation zone.

[0044] According to one embodiment of the present application, the saturated evaporation zone includes three parts: temperature control, evaporation, and gas-liquid separation. As shown in Figure 3 The above-mentioned gas-water mixture enters an evaporation enhancement and stabilization zone composed of porous media, achieving efficient and stable saturation. Since the amount of water in the gas-water mixture is more than the amount of water required for saturation, it needs to be further passed through a gas-liquid separator. Thus, one path produces the required saturated humidity, and the other path returns the excess water. The above-mentioned evaporation zone and gas-liquid separator are both included in a constant-temperature module. The constant-temperature module can have heating function, refrigeration function, or both, to meet the requirements of different temperature ranges.

[0045] Although the specific embodiments of the present application have been described in detail with reference to the various illustrative embodiments thereof, it must be understood that modifications and / or improvements can be made by those skilled in the art without departing from the spirit and scope of the present application. Specifically, within the scope of the foregoing disclosure, drawings, and claims, reasonable variations and improvements can be made in the arrangement of parts and / or dependent combinations without departing from the spirit of the present application; in addition to variations and improvements in parts and / or arrangement, the scope is defined by the appended claims and their equivalents.

Claims

1. A wide-temperature-range humidity control system with a pressure water compensation circuit, characterized in that, The system includes a water supply system, a multi-port component, a gas-liquid injection multi-port component, an evaporation saturation temperature control system, a pressure compensation terminal for the water supply system, and a pressure compensation pipeline. The water supply system is connected to the input terminal of the evaporation saturation temperature control system through the multi-port component and the gas-liquid injection multi-port component. The pressure compensation pipeline connects the output terminal of the evaporation saturation temperature control system to the pressure compensation terminal of the water supply system. The output terminal of the evaporation saturation temperature control system is connected to the gas phase section within the water storage tank of the water supply system via a pipeline. The water supply system includes a water storage tank. The output end of the evaporation saturation temperature control system is connected to the pressure compensation end of the water storage tank via a pressure compensation pipeline, and is connected to the first end of the multi-way component via the output end of the water storage tank, and further connected to the input end of the evaporation saturation temperature control system to form a pressure compensation loop. The evaporation saturation temperature control system includes a constant temperature module. The constant temperature module is constructed by casting a heating tube, a porous medium evaporation zone, and a gas-liquid separator into a single structure using liquid aluminum casting. The porous medium is connected to the first end of the four-way connector. The second end of the four-way connector outputs saturated moisture. The third end of the four-way connector is connected to the gas phase space in the water storage tank of the water supply system. The fourth end of the four-way connector is connected to the return water end of the gas-liquid separator in the evaporation saturation temperature control system. The return water end is connected to the return water output end of the evaporation saturation temperature control system. The four-way connector is connected to a temperature measuring component that provides feedback to the constant temperature module. The system includes a circulating power source between the multi-port component and the gas-liquid sampling multi-port component. The input end of the circulating power source is connected to the second end of the multi-port component, and the output end is connected to the input end of the gas-liquid sampling multi-port component. The circulating power source is connected to the water supply system, which includes a water storage tank, through the first end of the multi-port component, and to the return water output end of the evaporation saturation temperature control system through the third end of the multi-port component. The circulating power source is a circulating water pump, and the height of the input port of the circulating power source is lower than or equal to the lower limit water level of the water supply system. The multi-port component includes a first end connected to the water supply system, a second end connected to the circulating power source, and a third end connected to the return water output end of the evaporation saturation temperature control system. The evaporation saturation temperature control system also includes a control system for the multi-port component that controls the multi-port component to preferentially extract return water from the return water output section of the evaporation saturation temperature control system.

2. The wide temperature range humidity control system with a pressure water compensation circuit according to claim 1, characterized in that, The evaporation saturation temperature control system includes a porous medium, a constant temperature module, and a gas-liquid separator connected to the porous medium. The gas-liquid mixing end of the gas-liquid injection multi-channel component is connected to the input end of the porous medium. The gas-liquid separator includes a moisture output end and a water return end.

3. A wide-temperature-range humidity control system with a pressure water compensation circuit according to claim 2, characterized in that, The porous medium and the gas-liquid separator are disposed in the constant temperature module. The evaporation saturation temperature control system includes a porous medium, which includes an evaporation enhancement and stabilization zone.

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