Constant temperature and humidity machine

Abstract

The invention discloses a constant temperature and humidity machine, and relates to the technical field of temperature control, the constant temperature and humidity machine comprises a box body, the box body is provided with a first air inlet, a second air inlet, a first air outlet and a second air outlet, the first air inlet and the first air outlet are communicated to form a first air duct, and the second air duct is communicated with the first air duct; the second air inlet and the second air outlet are communicated to form a second air duct; the first refrigeration mechanism comprises at least three first water curtain assemblies and a first air supply assembly, and the first water curtain assemblies and the first air supply assembly are arranged in the first air duct; and the second refrigerating mechanism comprises an evaporator, a second air supply assembly and at least one reheating assembly, and the evaporator, the second air supply assembly and the reheating assembly are all arranged in the second air duct. According to the technical scheme, the multi-cooling effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of temperature control, in particular to a constant temperature and humidity machine. Background Art

[0002] At present, in many areas of daily life, the requirements for environmental temperature and humidity are getting higher and higher. Constant temperature and humidity machines mainly provide constant humidity and heat, complex high and low temperature alternation and other test environments and test conditions for electronic components, industrial materials, and finished products in various links of research and development, production, and inspection. They are suitable for various industries such as electronics, communications, chemicals, hardware, rubber, and toys. Traditional constant temperature and humidity machines usually only use a single cooling method, such as only using wet curtain cooling or only using mechanical refrigeration. The adaptability of a single cooling method under different environmental conditions is poor, and the cooling effect is limited. The heat exchanger design of the existing constant temperature and humidity machine is relatively simple, and the contact area between the air and the cooling medium is limited, resulting in low heat exchange efficiency. Summary of the invention

[0003] The main purpose of the present invention is to provide a constant temperature and humidity machine, aiming to achieve multiple cooling effects.

[0004] To achieve the above object, the constant temperature and humidity machine proposed by the present invention comprises:

[0005] A box body, wherein the box body is provided with a first air inlet, a second air inlet, a first air outlet, and a second air outlet, the first air inlet and the first air outlet are connected to form a first air duct, and the second air inlet and the second air outlet are connected to form a second air duct;

[0006] A first refrigeration mechanism includes at least three first water curtain assemblies and a first air supply assembly, wherein the first water curtain assemblies and the first air supply assembly are arranged in the first air duct, the air inlet side of the first air supply assembly faces the first air inlet, and the air outlet side of the first air supply assembly faces the first air outlet, and the first air supply assembly is used to drive external air to enter the first air duct from the first air inlet and pass through the first water curtain assembly and then be delivered from the first air outlet;

[0007] The second refrigeration mechanism includes an evaporator, a second air supply component and at least one reheat component, wherein the evaporator, the second air supply component and the reheat component are all arranged in the second air duct, the reheat component is used to heat the air in the second air duct, the air inlet side of the second air supply component faces the second air inlet, and the air outlet side of the second air supply component faces the second air outlet, the evaporator is located between the second air supply component and the second air inlet, and the second air supply component is used to drive outside air into the second air duct from the second air inlet, and then be sent out from the first air outlet after being heated by the reheat component.

[0008] In one embodiment, the second refrigeration mechanism also includes a second water curtain assembly, which is arranged in the second air duct, and the second air supply assembly is used to drive external air into the second air duct from the second air inlet and pass through the second water curtain assembly and then be delivered from the second air outlet.

[0009] In one embodiment, a middle partition is further provided in the box body, and the box body is divided into a first box body and a second box body by the middle partition, the first box body and the second box body are adjacently arranged along a first direction, the first air inlet and the first air outlet are arranged on the first box body, the first water curtain assembly and the first air supply assembly are arranged in the first box body, the second air inlet and the second air outlet are connected and arranged on the second box body, and the evaporator, the second air supply assembly and the reheat assembly are all arranged in the second box body.

[0010] In one embodiment, the first box body has a first side panel and a second side panel that are arranged opposite to each other, and a third side panel and a first top panel that are arranged between the first side panel and the second side panel, the third side panel is arranged opposite to the middle partition panel, the first side panel, the second side panel, the third side panel, the first top panel and the middle partition panel enclose the first air duct, the inner sides of the first side panel, the second side panel and the third side panel are respectively provided with the first water curtain assembly, at least one of the first side panel, the second side panel and the third side panel is provided with the first air inlet, and the first top panel is provided with the first air outlet.

[0011] In one embodiment, the first air supply assembly includes a first volute and a centrifugal wind wheel rotatably disposed in the first volute, and the first volute is provided with air inlets on a side facing the first side plate and a side facing the second side plate, and the air outlet of the volute is connected to the first air outlet.

[0012] In one embodiment, the second air supply assembly includes a second volute and a centrifugal wind wheel installed in the second volute, the second volute is arranged in the second air duct near the second air outlet, the second volute is located above the evaporator, the air inlet of the volute is arranged opposite to the rear end of the evaporator, the front end of the evaporator is arranged opposite to the second air inlet, the air outlet of the volute is connected to the second air outlet, and the reheat assembly is arranged on the second volute.

[0013] In one embodiment, the first refrigeration mechanism further includes a coil assembly, the constant temperature and humidity machine further includes a water supply assembly and a water receiving tray, the water supply assembly is arranged in the second housing, the water receiving tray has a cooling groove extending along the first direction, the coil assembly is arranged in the cooling groove, the coil assembly is extended in the direction of the cooling groove, the evaporator is located above the water receiving tray, the water supply assembly is used to supply water to the first water curtain assembly and / or the second water curtain assembly, the water supply assembly includes a water tank, a water filling valve and a partition plate, the partition plate is arranged at The water tank is formed with a first accommodating chamber and a second accommodating chamber, the water adding valve is arranged in the second accommodating chamber, the water inlet end of the water adding pump is connected to the water source, the water outlet end of the water adding pump is connected to the first accommodating chamber, the water inlet side of the water curtain assembly is connected to the first accommodating chamber, so that the liquid in the first accommodating chamber is transported to the first water curtain assembly for water supply and / or the second water curtain assembly, the cooling trough is connected to the second accommodating chamber, so that the condensed water generated by the coil assembly flows back to the second accommodating chamber, and the second accommodating chamber is provided with a water outlet.

[0014] In one embodiment, the second box body includes a fourth side panel and a fifth side panel that are relatively arranged, and a sixth side panel that is arranged between the fourth side panel and the fifth side panel, the sixth side panel is arranged opposite to the middle partition panel, the fourth side panel, the fifth side panel, the sixth side panel and the middle partition panel enclose and form the second air duct, the sixth side panel is provided with the second air inlet and the second air outlet, the second air outlet is located above the second air inlet, the upper end of the evaporator is close to or against the sixth side panel, and the lower end of the evaporator is close to or against the direction of the middle partition panel and is inclined.

[0015] In one embodiment, the constant temperature and humidity machine further comprises:

[0016] A humidity sensor, the humidity sensor is arranged on the second water curtain assembly, the humidity sensor is electrically connected to the control panel to obtain humidity data, and;

[0017] A control panel is arranged on the sixth side panel, and the control panel is electrically connected to the water adding valve and the water adding pump, and is used to control the operation of the water adding valve and the water adding pump so that the liquid in the first containing chamber is transported to the first water curtain assembly and / or the second water curtain assembly.

[0018] In one embodiment, the constant temperature and humidity machine also includes a compressor, which is arranged in the first box body, the coil assembly includes at least two coils, the cooling tank includes a first cooling tank and a second cooling tank arranged adjacent to the first cooling tank, the first cooling tank and the second cooling tank are both provided with the coil, the coil includes a tube body and a liquid inlet section and a liquid outlet section arranged at both ends of the tube body, the liquid inlet section is used to connect to the compressor, and the liquid outlet section is used to connect to the evaporator.

[0019] The technical solution of the present invention integrates two different cooling mechanisms, namely, a wet curtain (or water curtain) cooling system and an evaporative cooling system. The solution discloses a box body as the basic frame of the entire constant temperature and humidity machine, and the box body is provided with a first air inlet, a second air inlet, a first air outlet and a second air outlet, the first air inlet and the first air outlet are connected to form a first air duct, and the second air inlet and the second air outlet are connected to form a second air duct. The two air ducts respectively undertake different cooling tasks. The first air duct is used for the wet curtain cooling system. The second air duct serves the mechanical refrigeration system. The first heat exchange mechanism uses the evaporative cooling principle of the water curtain to reduce the temperature of the air passing through the first air duct. The first refrigeration mechanism is mainly composed of a plurality of water curtain assemblies and a first air supply assembly, which is installed in the first air duct. At least three water curtain assemblies reduce the temperature of the passing air by evaporation of water to achieve the effect of natural cooling. The first air supply assembly is responsible for inhaling the outside air and passing it through the water curtain assembly, and finally discharging the cooled air. The second heat exchange mechanism adopts a traditional refrigerant circulation system to further reduce the temperature of the air passing through the second air duct. The second refrigeration mechanism is composed of an evaporator, a second air supply component and at least one reheat component, and is placed in the second air duct. The evaporator contains refrigerant, which absorbs heat through the evaporation process of the refrigerant to cool the air. The evaporator is a device that uses the phase change of the refrigerant (from liquid to gas) to absorb heat to achieve the purpose of cooling, and belongs to the mechanical refrigeration method. The second air supply component is responsible for guiding the air through the evaporator and delivering the cooled or heated air to the target area. The reheat component is used to heat the air in the second air duct. The dual-duct design allows the first and second air ducts to operate independently without interfering with each other, ensuring that each cooling method can achieve the best effect. Multi-stage cooling, in extremely high temperature environments, wet curtain cooling and mechanical refrigeration can be enabled at the same time to achieve double cooling and improve overall cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained by the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A structural schematic diagram of an embodiment of a constant temperature and humidity machine provided by the present invention;

[0022] Figure 2 A schematic diagram of the structure of the box provided by the present invention;

[0023] Figure 3 A schematic diagram of the structure of the constant temperature and humidity machine provided by the present invention without the box;

[0024] Figure 4 A structural schematic diagram of another embodiment of the constant temperature and humidity machine provided by the present invention;

[0025] Figure 5 A structural schematic diagram of another embodiment of the constant temperature and humidity machine provided by the present invention;

[0026] Figure 6 A structural schematic diagram of another embodiment of the constant temperature and humidity machine provided by the present invention;

[0027] Figure 7 A structural schematic diagram of another embodiment of the constant temperature and humidity machine provided by the present invention;

[0028] Figure 8 This is a structural schematic diagram of the water adding valve provided by the present invention.

[0029] Description of Figure Numbers:

[0030] 100, box body; 110, first air duct; 111, first air inlet; 112, first air outlet; 120, second air duct; 121, second air inlet; 122, second air outlet; 130, middle partition; 140, box body; 141, first box body; 1411, first side plate; 1412, second side plate; 1413, third side plate; 1414, first top plate; 142, second box body; 1421, fourth side plate; 1422, fifth side plate; 1423, sixth side plate; 200, first refrigeration mechanism; 210, first water curtain assembly; 220, first An air supply assembly; 221, a first volute; 230, a coil assembly; 300, a second refrigeration mechanism; 310, an evaporator; 320, a second air supply assembly; 321, a second volute; 330, a reheat assembly; 340, a second water curtain assembly; 400, a water supply assembly; 410, a water tank; 411, a first accommodating chamber; 412, a second accommodating chamber; 420, a water adding valve; 430, a partition plate; 500, a water receiving tray; 510, a cooling trough; 511, a first cooling trough; 512, a second cooling trough; 600, a humidity sensor; 700, a control panel; 800, a compressor.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] The invention provides a constant temperature and humidity machine.

[0036] See also Figure 1 to Figure 7 In the embodiment of the present invention, the constant temperature and humidity machine includes a box body 100, a first refrigeration mechanism 200 and a second refrigeration mechanism 300.

[0037] See also Figure 1-2 The box body 100 is provided with a first air inlet 111, a second air inlet 121, a first air outlet 112 and a second air outlet 122. The first air inlet 111 and the first air outlet 112 are connected to form a first air duct 110, and the second air inlet 121 and the second air outlet 122 are connected to form a second air duct 120.

[0038] See also Figure 1 to Figure 4The first refrigeration mechanism 200 includes at least three first water curtain assemblies 210 and a first air supply assembly 220. The first water curtain assembly 210 and the first air supply assembly 220 are arranged in the first air duct 110. The air inlet side of the first air supply assembly 220 faces the first air inlet 111, and the air outlet side of the first air supply assembly 220 faces the first air outlet 112. The first air supply assembly 220 is used to drive external air to enter the first air duct 110 from the first air inlet 111 and pass through the first water curtain assembly 210 and then be delivered from the first air outlet 112.

[0039] See also Figure 1 to Figure 4 The second refrigeration mechanism 300 includes an evaporator 310, a second air supply component 320 and at least one reheat component 330. The evaporator 310, the second air supply component 320 and the reheat component 330 are all arranged in the second air duct 120. The reheat component 330 is used to heat the air in the second air duct 120. The air inlet side of the second air supply component 320 faces the second air inlet 121, and the air outlet side of the second air supply component 320 faces the second air outlet 122. The evaporator 310 is located between the second air supply component 320 and the second air inlet 121. The second air supply component 320 is used to drive external air into the second air duct 120 from the second air inlet 121, and is sent out from the first air outlet 112 after being heated by the reheat component 330.

[0040] In this embodiment, the reheating component 330 can be a PTC component or a resistance wire. PTC (Positive Temperature Coefficient) is a positive temperature coefficient thermistor. The resistance value of the PTC thermistor increases with the increase of temperature. When it is used as the reheating component 330, in the second air duct 120 of the constant temperature and humidity machine, when the current passes through the PTC, due to its low initial resistance, the current is large. According to Joule's law, Q=I 2 Rt (where Q is heat, I is current, R is resistance, and t is time), will generate heat. As the temperature rises, its resistance increases and the current decreases, but it can still maintain a certain heat output. This characteristic enables the PTC to automatically adjust the heat output in the air duct according to the temperature change, which helps to accurately control the temperature of the air in the second air duct 120 so that it meets the requirements set by the constant temperature and humidity machine.

[0041] PTC is a self-limiting temperature material. Compared with other heating elements, when abnormal conditions occur and the temperature is too high, it will automatically limit the current, thereby reducing power and reducing the possibility of safety hazards such as fire caused by overheating. Within the normal working range, PTC can respond quickly and generate heat, effectively converting electrical energy into thermal energy, heating the air, and helping to improve the overall working efficiency of the constant temperature and humidity machine. Due to its self-limiting temperature characteristics and relatively stable working state, the PTC ages relatively slowly and can maintain stable heating performance for a long time, reducing the cost and trouble of frequent replacement of the reheat component 330.

[0042] Resistance wire is a traditional heating element. When current passes through the resistance wire, according to Joule's law, Q = I 2 Rt (where Q is heat, I is current, R is resistance, and t is time), the resistance wire will generate heat. In the second air duct 120 of the constant temperature and humidity machine, the heat generated by the resistance wire will be transferred to the air flowing through, thereby increasing the temperature of the air. By changing the resistance value of the resistance wire (for example, by using a variable resistor in series) or changing the current passing through the resistance wire (by adjusting the voltage in the circuit, etc.), the heating power of the resistance wire can be adjusted more conveniently, so that the heating amount of the air can be adjusted according to the different working requirements of the constant temperature and humidity machine.

[0043] The technical solution of the present invention adopts two different cooling mechanisms, namely, a wet curtain (or water curtain) cooling system and an evaporative cooling system. The solution discloses a box 100 as the basic frame of the entire constant temperature and humidity machine, and the box 100 is provided with a first air inlet 111, a second air inlet 121, a first air outlet 112 and a second air outlet 122. The first air inlet 111 and the first air outlet 112 are connected to form a first air duct 110, and the second air inlet 121 and the second air outlet 122 are connected to form a second air duct 120. The two air ducts respectively undertake different cooling tasks. The first air duct 110 is used for the wet curtain cooling system. The second air duct 120 serves the mechanical refrigeration system. The first heat exchange mechanism uses the evaporative cooling principle of the water curtain to reduce the temperature of the air passing through the first air duct 110. The first refrigeration mechanism 200 is mainly composed of a plurality of water curtain components and a first air supply component 220, which is installed in the first air duct 110. At least three water curtain components reduce the temperature of the passing air by evaporating water to achieve the effect of natural cooling. The first air supply assembly 220 is responsible for sucking in the outside air and passing it through the water curtain assembly, and finally discharging the cooled air. The second heat exchange mechanism adopts a traditional refrigerant circulation system to further reduce the temperature of the air passing through the second air duct 120. The second refrigeration mechanism 300 is composed of an evaporator 310, a second air supply assembly 320 and at least one reheat assembly 330, and the evaporator 310, the second air supply assembly 320 and the reheat assembly 330 are arranged in the second air duct 120. The evaporator 310 contains refrigerant inside, which absorbs heat through the evaporation process of the refrigerant to cool the air. The evaporator 310 is a device that uses the phase change of the refrigerant (from liquid to gas) to absorb heat to achieve the purpose of cooling, and belongs to a mechanical refrigeration method. The second air supply assembly 320 is responsible for guiding the air through the evaporator 310 and delivering the cooled or heated air to the target area. The reheat assembly 330 is used to heat the air in the second air duct 120. The dual air duct design is adopted, and the first air duct 110 and the second air duct 120 operate independently without interfering with each other, ensuring that each cooling method can achieve the best effect. The present invention adopts a multi-stage cooling method. In an extremely high temperature environment, wet curtain cooling and mechanical refrigeration can be enabled at the same time to achieve dual cooling and improve the overall cooling efficiency.

[0044] See also Figure 3 In one embodiment, the second refrigeration mechanism 300 also includes a second water curtain assembly 340, and the second water curtain assembly 340 is arranged in the second air duct 120. The second air supply assembly 320 is used to drive the outside air to enter the second air duct 120 from the second air inlet 121 and pass through the second water curtain assembly 340 and then be delivered from the second air outlet 122.

[0045] In this embodiment, in addition to cooling the evaporator 310 in the mechanical refrigeration system, the second water curtain assembly 340 can further reduce the air temperature. When the outside air enters the second air duct 120 from the second air inlet 121 and passes through the second water curtain assembly 340, water evaporates on the water curtain. According to the physical principle, liquid evaporation requires the absorption of heat. When water evaporates, it absorbs heat from the surrounding air, thereby reducing the air temperature. This process follows the law of conservation of heat, that is, the heat absorbed by water when it changes from liquid to gas comes from the air.

[0046] According to the principle of heat absorption by evaporation of water, when air flows through the second water curtain assembly 340, it absorbs heat in the air, so that the air temperature is reduced, which helps to improve the cooling effect of the entire constant temperature and humidity machine, especially when the mechanical refrigeration system alone is not enough to reach the required temperature. During the evaporation process of water, due to the surface tension and adsorption of water, particles such as dust and impurities will be adsorbed by water, thereby reducing pollutants such as dust in the air. This is similar to the principle of wet filtration. Through the full contact between water and air, solid impurities in the air are removed, which plays a certain role in purifying the air. This helps to improve the quality of air delivered by the constant temperature and humidity machine and meet the requirements of environments with air cleanliness, such as laboratories, electronic production workshops, etc.

[0047] In addition, the water curtain assembly can also adjust the humidity. When the air contacts the water curtain, water molecules enter the air from the surface of the water curtain, thereby increasing the absolute humidity of the air. As the air humidity increases, when it reaches a certain level, the humidity control system of the constant temperature and humidity machine, such as the humidity sensor 600, can be used to monitor the humidity, and then cooperate with other components (such as dehumidification devices, etc.) to accurately adjust the air humidity so that it is stable within the set humidity range.

[0048] In this embodiment, the temperature, humidity and cleanliness of the air after being processed by the second water curtain assembly 340 are changed. Then, under the action of the second air supply assembly 320, the air continues to flow to the second air outlet 122 and is finally sent out of the constant temperature and humidity machine to meet the requirements of temperature, humidity and air cleanliness in a specific environment.

[0049] See also Figure 1 to Figure 4In one embodiment, a middle partition 130 is further provided in the box body 100, and the box body 100 body is divided into a first box body 141 and a second box body 142 by the middle partition 130, the first box body 141 and the second box body 142 are adjacently arranged along a first direction, the first air inlet 111 and the first air outlet 112 are arranged on the first box body 141, the first water curtain assembly 210 and the first air supply assembly 220 are arranged in the first box body 141, the second air inlet 121 and the second air outlet 122 are connected and arranged on the second box body 142, and the evaporator 310, the second air supply assembly 320 and the reheat assembly 330 are all arranged in the second box body 142.

[0050] In this embodiment, the box 100 is divided into two independent air ducts by the middle partition 130 to ensure that the wet curtain cooling and the mechanical refrigeration system do not interfere with each other, and each operates independently to improve the cooling efficiency. The user can choose to use wet curtain cooling, mechanical refrigeration or both at the same time according to environmental conditions and needs to enhance the adaptability and flexibility of the equipment. The two cooling systems are integrated in one box 100, and the space is reasonably allocated by the middle partition 130, so that the equipment is more compact and saves installation space. The components in each box 100 can be independently designed and maintained, which is convenient for production and maintenance. In a dry environment, wet curtain cooling is used first to reduce energy consumption; in a high humidity environment, mechanical refrigeration is used to ensure the cooling effect. Through the intelligent control system, it can be enabled on demand and optimize energy utilization. Specifically, in the first air duct 110 (wet curtain cooling), the outside air enters the first box 141 through the first air inlet 111. The air flows through at least three first water curtain assemblies 210, and the moisture on the surface of the water curtain evaporates, taking away the heat in the air and reducing the air temperature. The first air supply assembly 220 discharges the cooled air from the first air outlet 112 to cool the environment. The second air duct 120 (mechanical refrigeration) The outside air enters the second box 142 through the second air inlet 121. The air passes through the evaporator 310, and the refrigerant evaporates in the evaporator 310, absorbing a large amount of heat, causing the air temperature to drop significantly. The second air supply assembly 320 discharges the cooled air from the second air outlet 122 to provide additional cooling effect for the environment.

[0051] See also Figure 1 to Figure 4In one embodiment, specifically, the first box body 141 has a first side plate 1411 and a second side plate 1412 that are relatively arranged, and a third side plate 1413 and a first top plate 1414 that are arranged between the first side plate 1411 and the second side plate 1412, the third side plate 1413 is arranged opposite to the middle partition plate 130, the first side plate 1411, the second side plate 1412, the third side plate 1413, the first top plate 1414 and the middle partition plate 130 enclose the first air duct 110, the inner sides of the first side plate 1411, the second side plate 1412 and the third side plate 1413 are respectively provided with the first water curtain assembly 210, at least one of the first side plate 1411, the second side plate 1412 and the third side plate 1413 is provided with the first air inlet 111, and the first top plate 1414 is provided with the first air outlet 112.

[0052] The three first water curtain assemblies 210 are respectively arranged on the inner side of the first side plate 1411, the second side plate 1412 and the third side plate 1413, forming a multi-faceted water curtain cooling path, increasing the area of ​​contact between the air and the water curtain, improving the evaporation efficiency of water, and thus improving the cooling effect. The multi-directional air intake design increases the air intake area, increases the air flow, and further improves the cooling efficiency. The multi-faceted water curtain and multi-directional air intake design allow the air entering the first air duct 110 to be evenly distributed in all directions, avoiding the problem of uneven local cooling.

[0053] The first air outlet 112 is arranged on the first top plate 1414, which is conducive to uniformly delivering the cooled air into the room and improving the uniformity of the indoor temperature. Specifically, the outside air enters the first box body 141 through the first air inlet 111. Since the first air inlet 111 can be arranged on at least one of the first side wall, the second side wall and the third side wall, the air can enter the first air duct 110 from multiple directions. The air entering the first air duct 110 flows through the water curtain assembly on the inner side of the first side wall, the second side wall and the third side wall. The moisture on the surface of the water curtain evaporates, takes away the heat in the air, and reduces the air temperature. The first air supply assembly 220 (usually a fan) discharges the cooled air from the first air outlet 112 (arranged on the first top plate 1414) to cool the environment.

[0054] See also Figure 4 In one embodiment, the first air supply assembly 220 includes a first volute 221 and a centrifugal wind wheel rotatably disposed in the first volute 221, and the first volute 221 is provided with an air inlet on the side facing the first side plate 1411 and the side facing the second side plate 1412, and the air outlet of the volute is connected to the first air outlet 112.

[0055] In this embodiment, both sides of the first volute 221 are provided with air inlets, which can introduce air from the first side wall and the second side wall at the same time, increase the air inlet area, increase the air circulation, and thus improve the cooling efficiency. The multi-directional air inlet design allows the air entering the first volute 221 to be evenly distributed in all directions, avoiding the problem of uneven local cooling. The design of the centrifugal wind wheel can inhale air from the radial direction and then discharge it along the tangential direction, forming a strong airflow, which increases the air delivery distance and speed. The volute structure can effectively collect and guide air, reduce airflow loss, increase wind pressure and air volume, ensure that air enters smoothly from the air inlet, and is discharged from the air outlet after being accelerated by the centrifugal wind wheel. The combined design of the centrifugal wind wheel and the volute can generate a strong airflow, ensure that the cooled air can be quickly and evenly delivered to the room, and improve the cooling effect. The volute structure can reduce the turbulence of the airflow, reduce noise, and improve the stability of air supply. The combined design of the volute and the centrifugal wind wheel makes the structure of the first air supply component 220 compact, saves space, and is easy to install and maintain.

[0056] See also Figure 4 In one embodiment, the second air supply component 320 includes a second volute 321 and a centrifugal wind wheel installed in the second volute 321, the second volute 321 is arranged in the second air duct 120 near the second air outlet 122, the second volute 321 is located above the evaporator 310, the air inlet of the volute is arranged opposite to the rear end of the evaporator 310, the front end of the evaporator 310 is arranged opposite to the second air inlet 121, the air outlet of the volute is connected to the second air outlet 122, and the reheat component 330 is arranged on the second volute 321.

[0057] See also Figures 4 to 6In one embodiment, the first refrigeration mechanism 200 further includes a coil assembly 230, and the constant temperature and humidity machine further includes a water supply assembly 400 and a water receiving tray 500. The water supply assembly 400 is arranged in the second box body 142, and the water receiving tray 500 has a cooling groove 510 extending along the first direction. The coil assembly 230 is arranged in the cooling groove 510, and the coil assembly 230 extends along the direction of the cooling groove 510. The evaporator 310 is located above the water receiving tray 500. The water supply assembly 400 is used to supply water to the first water curtain assembly 210 and / or the second water curtain assembly 340. The water supply assembly 400 includes a water tank 410, a water filling valve 420 and a partition plate 430. The partition plate 430 is arranged in the water tank 410 so that the water tank 410 forms a first accommodating chamber 411 and a second accommodating chamber 412, the water adding valve 420 is arranged in the second accommodating chamber 412, the water inlet end of the water adding pump is connected to the water source, the water outlet end of the water adding pump is connected to the first accommodating chamber 411, the water inlet side of the water curtain assembly is connected to the first accommodating chamber 411, so that the liquid in the first accommodating chamber 411 is transported to the first water curtain assembly 210 for water supply and / or the second water curtain assembly 340, the cooling groove 510 is connected to the second accommodating chamber 412, so that the condensed water generated by the coil assembly 230 flows back to the second accommodating chamber 412, and the second accommodating chamber 412 is provided with a water outlet.

[0058] Multi-stage cooling is achieved by combining the water curtain assembly and the coil assembly 230. The water curtain assembly lowers the air temperature by evaporation of water, and the coil assembly 230 further cools the air by circulating condensed water, thereby improving the overall cooling efficiency. The condensed water generated by the coil assembly 230 flows back to the second accommodating chamber 412, and can be used again for water supply to the water curtain assembly, thereby reducing the waste of water resources. The water tank 410 is divided into a first accommodating chamber 411 and a second accommodating chamber 412. The first accommodating chamber 411 is used to store water for supplying water to the water curtain assembly, and the second accommodating chamber 412 is used to store condensed water. This design ensures the separation of water supply and condensed water, thereby avoiding water pollution. Water from an external water source is transported to the first accommodating chamber 411 through the water adding valve 420, thereby ensuring continuous water supply to the water curtain assembly, and the water flows into the second accommodating chamber 412 through the partition plate 430. The water in the first accommodating chamber 411 is transported to the water inlet side of the water curtain assembly through a pipeline, and the water curtain assembly sprays water mist to cool the air by evaporation. The coil assembly 230 generates condensed water during the cooling process. The condensed water flows into the cooling groove 510 of the water receiving tray 500. The cooling groove 510 is connected to the second accommodating chamber 412, and the condensed water flows back into the second accommodating chamber 412. The condensed water flows back to the second accommodating chamber 412 through the cooling groove 510, and can be discharged regularly through the water outlet to ensure the smooth flow of the waterway and the stable operation of the system. The water outlet can discharge excess condensed water in time to prevent excessive water accumulation from overflowing or affecting the normal operation of the equipment. Condensed water can be discharged regularly through the water outlet to keep the water tank 410 clean, prevent the accumulation of bacteria and dirt, and extend the service life of the equipment.

[0059] See also Figures 6 to 8 The outer surface of the water adding pump is provided with a first scale line and a second scale line at intervals, the first scale line is used to indicate the lowest level of the liquid in the first accommodating chamber 411, and the second scale line is used to indicate the highest level of the liquid in the second accommodating chamber 412.

[0060] In some embodiments, the water adding pump may also include a water pump body and a liquid level sensor, wherein the liquid level sensor is used to sense the water level of the second containing chamber 412; the liquid level sensor and the water pump body are both electrically connected to a control device, and the control device receives communication data of the liquid level sensor and regulates the opening and closing of the water pump body to replenish water for the first water tank 410; when the water level of the second containing chamber 412 is lower than the detection position of the liquid level sensor, the water pump body replenishes water for the first containing chamber 411.

[0061] See also Figures 5 to 7It is understood that the water tray 500 can be a flat plate water tray 500, a rectangular or oblong plate with a flat bottom, usually made of corrosion-resistant metal (such as stainless steel) or plastic, with high edges around to prevent condensed water from overflowing; it can also be an inclined water tray 500, a rectangular or oblong plate with a bottom at a certain inclination angle, usually made of corrosion-resistant metal (such as stainless steel) or plastic. There are high edges around to prevent condensed water from overflowing, and a drain port is set at the lowest point to ensure smooth discharge of condensed water; it can also be a segmented water tray 500, a water tray 500 composed of multiple segments, each of which can be designed independently. It is usually made of corrosion-resistant metal (such as stainless steel) or plastic. Each segment has high edges around to prevent condensed water from overflowing, and a drain port is set at the lowest point of each segment to ensure smooth discharge of condensed water; it can also be a trough water tray 500, a long strip of trough-like structure, usually set along the length direction of the device. It is usually made of corrosion-resistant metal (such as stainless steel) or plastic. There are higher edges on both sides to prevent condensate from overflowing, and a drain port is set at the lowest point of the groove to ensure smooth discharge of condensate.

[0062] join Figure 3 and Figure 4 In one embodiment, the second box body 142 includes a fourth side plate 1421 and a fifth side plate 1422 which are relatively arranged, and a sixth side plate 1423 which is arranged between the fourth side plate 1421 and the fifth side plate 1422, the sixth side plate 1423 is arranged opposite to the middle partition plate 130, the fourth side plate 1421, the fifth side plate 1422, the sixth side plate 1423 and the middle partition plate 130 are enclosed to form the second air duct 120, the sixth side plate 1423 is provided with the second air inlet 121 and the second air outlet 122, the second air outlet 122 is located above the second air inlet 121, the upper end of the evaporator 310 is close to or against the sixth side plate 1423, and the lower end of the evaporator 310 is close to or against the direction of the middle partition plate 130.

[0063] In this embodiment, the evaporator 310 is tilted to reduce the resistance when air passes through, making it easier for air to pass through the evaporator 310 and improving the air circulation efficiency. The tilted evaporator 310 can increase the contact area between the air and the surface of the evaporator 310, improve the heat exchange efficiency, and thus improve the cooling effect. The tilted evaporator 310 can better guide the air flow, so that the air is more evenly distributed when passing through the evaporator 310, avoiding the problem of uneven local cooling. The tilted setting can reduce the turbulence when the air passes through, reduce noise, and improve the stability of air supply. The tilted evaporator 310 helps the condensed water to flow smoothly along the surface of the evaporator 310 to the water receiving tray 500, reduce the accumulation of condensed water on the surface of the evaporator 310, prevent dripping, and keep the equipment clean and hygienic. The tilted setting can reduce the accumulation of condensed water on the surface of the evaporator 310, prevent the condensed water from clogging the evaporator 310, and affect the normal operation of the system. Reducing the accumulation of condensed water can prevent corrosion and rust, and extend the service life of the evaporator 310.

[0064] See also Figures 1 to 4 In one embodiment, the constant temperature and humidity machine further comprises:

[0065] A humidity sensor 600, wherein the humidity sensor 600 is disposed on the second water curtain assembly 340, and the humidity sensor 600 is electrically connected to the control panel 700 for acquiring humidity data, and;

[0066] A control panel 700 is disposed on the sixth side panel 1423 , and the control panel 700 is electrically connected to the water adding valve 420 and the water adding pump, and is used to control the operation of the water adding valve 420 and the water adding pump so that the liquid in the first containing chamber 411 is transported to the first water curtain assembly 210 and / or the second water curtain assembly 340 .

[0067] During the operation of the constant temperature and humidity machine, the humidity data collected by the humidity sensor 600 will be transmitted to the control panel 700. A specific algorithm is preset inside the control panel 700. After receiving the data from the humidity sensor 600, it will process the data according to these algorithms. Based on the processed humidity data, the control panel 700 makes a control decision. The control panel 700 compares the current humidity data with the preset humidity range. If the humidity is lower than the set value, it means that the air humidity needs to be increased, and the control panel 700 will make corresponding decisions, such as determining whether it is necessary to start the water adding valve 420 and the water adding pump, as well as the start-up duration, intensity and other parameters.

[0068] After making a control decision, the control panel 700 will perform corresponding operations to control the working state of the water adding valve 420 and the water adding pump. Since the control panel 700 is electrically connected to the water adding valve 420 and the water adding pump, the control panel 700 can accurately control the opening size of the water adding valve 420 and the start, stop and running speed of the water adding pump. In this way, the liquid can be transported from the first accommodating chamber 411 to the first water curtain assembly 210 and / or the second water curtain assembly 340, thereby adjusting the air humidity and temperature.

[0069] During the operation of the water adding valve 420 and the water adding pump, the humidity sensor 600 will continuously monitor the ambient humidity. It will continuously feed back new humidity data to the control panel 700. The control panel 700 will analyze and process the new data again. If the humidity still does not reach the set range, it will further adjust the working state of the water adding valve 420 and the water adding pump, such as increasing the speed of the water adding pump or increasing the opening of the water adding valve 420; if the humidity has reached the set range, it will maintain the current working state or make fine adjustments to ensure the stability of the humidity of the air output by the constant temperature and humidity machine, so as to adapt to the humidity requirements of different environments.

[0070] See also Figures 4 to 6 In one embodiment, the constant temperature and humidity machine also includes a compressor 800, which is arranged in the first box body 141, the coil assembly 230 includes at least two coils, the cooling tank 510 includes a first cooling tank 511 and a second cooling tank 512 arranged adjacent to the first cooling tank 511, the first cooling tank 511 and the second cooling tank 512 are both provided with the coil, the coil includes a tube body and a liquid inlet section and a liquid outlet section arranged at both ends of the tube body, the liquid inlet section is used to connect to the compressor 800, and the liquid outlet section is used to connect to the evaporator 310.

[0071] In this embodiment, the compressor 800 compresses the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas enters the coil through the liquid inlet section, and the coil is cooled by cold water in the cooling tank 510, and the refrigerant gas gradually condenses into liquid. The condensed refrigerant liquid enters the evaporator 310 through the liquid outlet section, evaporates in the evaporator 310, absorbs heat in the air, and reduces the air temperature. The evaporated refrigerant gas returns to the compressor 800 again, completing a refrigeration cycle. Specifically, the outside air enters the second box 142 through the second air inlet 121. The air first passes through the water curtain assembly at the sixth side wall, and the moisture on the surface of the water curtain evaporates, taking away the heat in the air, and performing preliminary cooling. The air after preliminary cooling continues to pass through the inclined evaporator 310, and the refrigerant evaporates in the evaporator 310, absorbing a large amount of heat, and further reducing the air temperature. Among them, the coil in the cooling tank 510 can effectively cool the condensed water, so that it flows more smoothly to the water receiving tray 500, reduce the accumulation of condensed water on the surface of the evaporator 310, prevent dripping, and keep the equipment clean and sanitary. The coil in the cooling tank 510 can reduce the accumulation of condensed water on the surface of the evaporator 310, prevent the condensed water from clogging the evaporator 310 and affecting the normal operation of the system. The combined design of the compressor 800 and the coil can reduce the turbulence when the air passes through, reduce noise, improve the smoothness of the air supply, and enhance the user experience. The coil in the cooling tank 510 helps to discharge the condensed water smoothly, reduce dripping, keep the equipment clean and sanitary, and improve the indoor air quality.

[0072] The technical solution of the present invention integrates two different cooling mechanisms, namely, a wet curtain (or water curtain) cooling system and an evaporative cooling system. The solution discloses a box 100 as the basic frame of the entire constant temperature and humidity machine, and the box 100 is provided with a first air inlet 111, a second air inlet 121, a first air outlet 112 and a second air outlet 122. The first air inlet 111 and the first air outlet 112 are connected to form a first air duct 110, and the second air inlet 121 and the second air outlet 122 are connected to form a second air duct 120. The two air ducts respectively undertake different cooling tasks. The first air duct 110 is used for the wet curtain cooling system. The second air duct 120 serves the mechanical refrigeration system. The first heat exchange mechanism uses the evaporative cooling principle of the water curtain to reduce the temperature of the air passing through the first air duct 110. The first refrigeration mechanism 200 is mainly composed of a plurality of water curtain components and a first air supply component 220, which is installed in the first air duct 110. At least three water curtain components reduce the temperature of the passing air by evaporating water to achieve the effect of natural cooling. The first air supply assembly 220 is responsible for sucking in the outside air and passing it through the water curtain assembly, and finally discharging the cooled air. The second heat exchange mechanism adopts a traditional refrigerant circulation system to further reduce the temperature of the air passing through the second air duct 120. The second refrigeration mechanism 300 is composed of an evaporator 310, a second air supply assembly 320 and at least one reheat assembly 330, and is placed in the second air duct 120. The evaporator 310 contains refrigerant inside, which absorbs heat through the evaporation process of the refrigerant to cool the air. The evaporator 310 is a device that uses the phase change of the refrigerant (from liquid to gas) to absorb heat to achieve the purpose of cooling, and belongs to a mechanical refrigeration method. The second air supply assembly 320 is responsible for guiding the air through the evaporator 310 and delivering the cooled or heated air to the target area. The reheat assembly 330 is used to heat the air in the second air duct 120. The dual air duct design allows the first air duct 110 and the second air duct 120 to operate independently without interfering with each other, ensuring that each cooling method can achieve the best effect. Multi-stage cooling: in extremely high temperature environments, wet curtain cooling and mechanical refrigeration can be used simultaneously to achieve double cooling and improve overall cooling efficiency.

[0073] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A constant temperature and humidity machine, characterized in that: include: A box body, wherein the box body is provided with a first air inlet, a second air inlet, a first air outlet, and a second air outlet, the first air inlet and the first air outlet are connected to form a first air duct, and the second air inlet and the second air outlet are connected to form a second air duct; A first refrigeration mechanism includes at least three first water curtain assemblies and a first air supply assembly, wherein the first water curtain assemblies and the first air supply assembly are arranged in the first air duct, the air inlet side of the first air supply assembly faces the first air inlet, and the air outlet side of the first air supply assembly faces the first air outlet, and the first air supply assembly is used to drive external air to enter the first air duct from the first air inlet and pass through the first water curtain assembly and then be delivered from the first air outlet; The second refrigeration mechanism includes an evaporator, a second air supply component and at least one reheat component, wherein the evaporator, the second air supply component and the reheat component are all arranged in the second air duct, the reheat component is used to heat the air in the second air duct, the air inlet side of the second air supply component faces the second air inlet, and the air outlet side of the second air supply component faces the second air outlet, the evaporator is located between the second air supply component and the second air inlet, and the second air supply component is used to drive outside air into the second air duct from the second air inlet, and then be sent out from the first air outlet after being heated by the reheat component.

2. The constant temperature and humidity machine according to claim 1, characterized in that: The second refrigeration mechanism also includes a second water curtain assembly, which is arranged in the second air duct. The second air supply assembly is used to drive external air into the second air duct from the second air inlet and pass through the second water curtain assembly and then be delivered from the second air outlet.

3. The constant temperature and humidity machine according to claim 2, characterized in that: A middle partition is also provided in the box body, and the box body is divided into a first box body and a second box body by the middle partition, the first box body and the second box body are adjacently arranged along a first direction, the first air inlet and the first air outlet are arranged on the first box body, the first water curtain assembly and the first air supply assembly are arranged in the first box body, the second air inlet and the second air outlet are connected and arranged on the second box body, and the evaporator, the second air supply assembly and the reheat assembly are all arranged in the second box body.

4. The constant temperature and humidity machine according to claim 3, characterized in that: The first box body comprises a first side panel and a second side panel which are arranged opposite to each other, and a third side panel and a first top panel which are arranged between the first side panel and the second side panel, the third side panel is arranged opposite to the middle partition panel, the first side panel, the second side panel, the third side panel, the first top panel and the middle partition panel enclose the first air duct, the first side panel, the second side panel and the third side panel have the first water curtain assembly respectively on their inner sides, at least one of the first side panel, the second side panel and the third side panel has the first air inlet, and the first top panel has the first air outlet.

5. The constant temperature and humidity machine according to claim 4, characterized in that: The first air supply assembly includes a first volute and a centrifugal wind wheel rotatably disposed in the first volute. The first volute is provided with air inlets on a side facing the first side plate and a side facing the second side plate. The air outlet of the volute is connected to the first air outlet.

6. The constant temperature and humidity machine according to claim 3, characterized in that: The second air supply assembly includes a second volute and a centrifugal wind wheel installed in the second volute, the second volute is arranged in the second air duct near the second air outlet, the second volute is located above the evaporator, the air inlet of the volute is arranged opposite to the rear end of the evaporator, the front end of the evaporator is arranged opposite to the second air inlet, the air outlet of the volute is connected to the second air outlet, and the reheat assembly is arranged on the second volute.

7. The constant temperature and humidity machine according to claim 4, characterized in that: The first refrigeration mechanism also includes a coil assembly, and the constant temperature and humidity machine also includes a water supply assembly and a water receiving tray. The water supply assembly is arranged in the second box body, and the water receiving tray has a cooling groove extending along the first direction. The coil assembly is arranged in the cooling groove, and the coil assembly extends in the direction of the cooling groove. The evaporator is located above the water receiving tray. The water supply assembly is used to supply water to the first water curtain assembly and / or the second water curtain assembly. The water supply assembly includes a water tank, a water filling valve and a partition plate, and the partition plate is arranged on the water tank. so that the water tank forms a first accommodating chamber and a second accommodating chamber, the water adding valve is arranged in the second accommodating chamber, the water inlet end of the water adding pump is connected with the water source, the water outlet end of the water adding pump is connected with the first accommodating chamber, the water inlet side of the water curtain assembly is connected with the first accommodating chamber, so that the liquid in the first accommodating chamber is transported to the first water curtain assembly for water supply and / or the second water curtain assembly, the cooling trough is connected with the second accommodating chamber, so that the condensed water generated by the coil assembly flows back into the second accommodating chamber, and the second accommodating chamber is provided with a water outlet.

8. The constant temperature and humidity machine according to claim 3, characterized in that: The second box body includes a fourth side panel and a fifth side panel that are relatively arranged, and a sixth side panel that is arranged between the fourth side panel and the fifth side panel, the sixth side panel is arranged opposite to the middle partition panel, the fourth side panel, the fifth side panel, the sixth side panel and the middle partition panel enclose the second air duct, the second air inlet and the second air outlet are provided on the sixth side panel, the second air outlet is located above the second air inlet, the upper end of the evaporator is close to or against the sixth side panel, and the lower end of the evaporator is close to or against the direction of the middle partition panel and is inclined.

9. The constant temperature and humidity machine according to claim 8, characterized in that: The constant temperature and humidity machine also includes: A humidity sensor, the humidity sensor is arranged on the second water curtain assembly, the humidity sensor is electrically connected to the control panel to obtain humidity data, and; A control panel is arranged on the sixth side panel, and the control panel is electrically connected to the water adding valve and the water adding pump, and is used to control the operation of the water adding valve and the water adding pump so that the liquid in the first containing chamber is transported to the first water curtain assembly and / or the second water curtain assembly.

10. The constant temperature and humidity machine according to claim 6, characterized in that: The constant temperature and humidity machine also includes a compressor, which is arranged in the first box body. The coil assembly includes at least two coils. The cooling tank includes a first cooling tank and a second cooling tank arranged adjacent to the first cooling tank. The first cooling tank and the second cooling tank are both provided with the coil. The coil includes a tube body and a liquid inlet section and a liquid outlet section arranged at both ends of the tube body. The liquid inlet section is used to connect to the compressor, and the liquid outlet section is used to connect to the evaporator.

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