Control valve device

Abstract

The invention relates to a control valve device which is applied to an air conditioning system, and the control valve device comprises a control valve which comprises a connecting rod, a heating medium valve element and a refrigerant valve element, and the heating medium valve element and the refrigerant valve element are both connected with the connecting rod; the heating medium mechanism comprises a heating medium shell, the connecting rod is arranged in the heating medium shell in a sliding and penetrating mode, and the heating medium valve element is arranged in the heating medium shell in a sliding mode so that a heat supply channel with the adjustable volume can be defined by the heating medium valve element and the heating medium shell; the refrigerant mechanism comprises a refrigerant shell, the connecting rod is arranged in the refrigerant shell in a sliding and penetrating mode, the refrigerant valve element is arranged in the refrigerant shell in a sliding mode so as to define a first cold supply channel and a second cold supply channel with the refrigerant shell, and the volume of the first cold supply channel and the volume of the second cold supply channel can be adjusted. And the change rules of the volumes of the first cold supply channel and the second cold supply channel are opposite. Therefore, the energy consumption of the air-conditioning system can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly to a control valve device. Background Art

[0002] A constant temperature and humidity air conditioning system can absorb part of the outdoor fresh air and part of the return air from the workplace. The fresh air and the return air are mixed to form mixed air, and then the temperature and humidity are processed in the box of the air conditioning system to re-supply the air to the workplace. Under the climatic conditions of high temperature and high humidity outdoors, it will cause the humidity of the mixed air to be too high. It is necessary to reduce the temperature of the mixed air to the dew point temperature of the mixed air and below, and separate out the moisture in the mixed air for dehumidification. After reducing to the air dew point, the temperature of the mixed air is relatively low. At this time, if this low-temperature mixed air is directly sent into the workplace, it may cause the temperature of the workplace to be too low; on the one hand, condensation and dripping will occur at the low-temperature air outlet and its vicinity, resulting in quality accidents. On the other hand, it will cause discomfort to the on-site personnel. Currently, the main method to increase the temperature of the mixed air is to use steam heaters for reheating, but this method has the defect of high energy consumption. Summary of the Invention

[0003] One technical problem solved by this application is how to reduce the energy consumption of the air conditioning system.

[0004] A control valve device is applied to an air conditioning system. The control valve device includes:

[0005] A control valve, including a connecting rod, a heat medium valve core, and a refrigerant valve core. The heat medium valve core and the refrigerant valve core are both connected to the connecting rod;

[0006] A heat medium mechanism, including a heat medium shell. The connecting rod slides through the heat medium shell, and the heat medium valve core is slidably arranged in the heat medium shell to enclose a heat supply channel with adjustable volume with the heat medium shell;

[0007] A refrigerant mechanism, including a refrigerant shell. The connecting rod slides through the refrigerant shell, and the refrigerant valve core is slidably arranged in the refrigerant shell to enclose a first refrigerant supply channel and a second refrigerant supply channel with adjustable volume with the refrigerant shell.

[0008] Wherein, when the volume of the heat supply channel can change, the change rules of the volumes of the first refrigerant supply channel and the second refrigerant supply channel are opposite.

[0009] In one embodiment, the heat medium shell includes a shell body and a support member. The shell body encloses a heat medium cavity. The support member protrudes from the bottom wall surface of the heat medium cavity and is spaced from the top wall surface of the heat medium cavity. The heat medium valve core abuts against the side wall surface of the heat medium cavity and can be supported on the support member. A heat supply adjustment cavity is formed between the heat medium valve core and the shell body and the support member. When the distance between the heat medium valve core and the support member changes, the size of the opening of the heat supply adjustment cavity located between the heat medium valve core and the support member changes. A heat supply hole communicating the heat supply adjustment cavity and the outside is formed on the side wall surface of the heat medium cavity. The heat supply channel includes the heat supply adjustment cavity and the heat supply hole.

[0010] In one embodiment, the refrigerant shell encloses a refrigerant cavity. The two ends of the refrigerant valve core abut against two opposite side wall surfaces of the refrigerant cavity, so that the refrigerant valve core divides the refrigerant cavity into two independent first cooling adjustment cavities and second cooling adjustment cavities. The refrigerant shell is provided with a first cooling hole and a second cooling hole. The first cooling channel includes the first cooling hole and the first cooling adjustment cavity that are communicated with each other. The second cooling channel includes the second cooling hole and the second cooling adjustment cavity that are communicated with each other.

[0011] In one embodiment, a plurality of input holes are formed on one of the side wall surfaces of the refrigerant cavity. The plurality of input holes are spaced along the sliding direction of the refrigerant valve core and are communicated with the refrigerant cavity. When the refrigerant valve core slides, the change rules of the number of the input holes communicated with the first cooling adjustment cavity and the second cooling adjustment cavity are opposite.

[0012] In one embodiment, the refrigerant mechanism further includes a buffer shell. The buffer shell encloses a buffer cavity. The buffer cavity is communicated with all the input holes.

[0013] In one embodiment, a fresh air valve is further included. The fresh air valve has independent heat communication cavity, first cold communication cavity and second cold communication cavity. The heat communication cavity is communicated with the heat supply channel. The first cold communication cavity is communicated with the first cooling channel. The second cold communication cavity is communicated with the second cooling channel. When the liquid pressures in the heat communication cavity, the first cold communication cavity and the second cold communication cavity are all less than the set value, the fresh air valve opens to introduce outside fresh air.

[0014] In one embodiment, the fresh air valve includes a valve plate and an elastic member. The elastic member abuts against the valve plate. The heat communication cavity, the first cold communication cavity and the second cold communication cavity and the elastic member are located on opposite sides of the valve plate. When the liquid pressures in the heat communication cavity, the first cold communication cavity and the second cold communication cavity are all less than the set value, the elastic member pushes the valve plate to move to open the fresh air valve.

[0015] In one embodiment, the volumes of the heat communication cavity, the first cold communication cavity, and the second cold communication cavity are equal.

[0016] In one embodiment, the heat medium valve core is slidably connected to the connecting rod, and the refrigerant valve core is fixedly connected to the connecting rod.

[0017] In one embodiment, it further includes a PLC controller. The PLC controller controls the movement of the connecting rod, and the PLC controller is also used to control the set values of the temperature and humidity of the air conditioning system.

[0018] A technical effect of an embodiment of the present application is that in view of the control valve device being applied to the air conditioning system, the first cooling channel inputs refrigerant to the cooling finned coil unit, and the second cooling channel inputs refrigerant to the dehumidifying finned coil unit. By adjusting the volumes of the first cooling channel and the second cooling channel, the flow rate of the refrigerant input into the cooling finned coil unit and the dehumidifying finned coil unit can be changed. For example, when the volume of the first cooling channel becomes smaller, the flow rate of the refrigerant input into the cooling finned coil unit becomes smaller, and the cooling capacity of the cooling finned coil unit decreases reasonably. Compared with the temperature of the air to be processed after being cooled and dehumidified by the traditional finned cooler, the temperature of the air passing through the cooling finned coil unit increases significantly. At the same time, the flow rate of the refrigerant input into the cooling finned coil unit becomes larger, but due to the limitation of the chilled water temperature of the dehumidifying finned coil unit and the large latent heat of dehumidification of the air and the large consumption of cooling capacity, the temperature of the air passing through the dehumidifying finned coil unit decreases less. Overall, it can increase the temperature of the air after cooling and dehumidification, reduce or even eliminate the reheating of the air by the heat medium of the heating unit, thereby reducing or eliminating the consumption of the heat medium, that is, reducing the energy consumption of the heating unit, and ultimately reducing the energy consumption of the entire air conditioning system. Description of the Drawings

[0019] Figure 1 It is a schematic plan view of the air conditioning system provided for an embodiment.

[0020] Figure 2 For Figure 1 a schematic plan view of the control valve device in the shown air conditioning system.

[0021] Figure 3 For Figure 1 a temperature curve diagram during the temperature control process of the shown air conditioning system.

[0022] Reference numerals: air conditioning system 10, control valve device 20, heating unit 31, cooling finned tube unit 32, dehumidifying finned tube unit 33, main heat medium supply pipe 34, main refrigerant supply pipe 35, heat medium delivery pipe 36, first refrigerant delivery pipe 37, second refrigerant delivery pipe 38, control valve 100, connecting rod 130, heat medium valve core 110, refrigerant valve core 120, heat medium mechanism 200, heat medium housing 210, housing body 211, heat medium chamber 2111, heat supply hole 2112, support member 212, heat supply adjustment chamber 213, heat supply passage 201, refrigerant mechanism 300, refrigerant housing 310, refrigerant chamber 311, first cooling supply adjustment chamber 312, second cooling supply adjustment chamber 313, first cooling supply hole 314, second cooling supply hole 315, input hole 316, buffer housing 320, buffer chamber 321, first cooling supply passage 301, second cooling supply passage 302, fresh air valve 400, heat communication chamber 410, first cold communication chamber 420, second cold communication chamber 430, valve plate 440, elastic member 450, PLC controller 500. Detailed implementation manners

[0023] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0025] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if there is a term "plural", the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In this application, unless otherwise clearly specified and defined, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In this application, unless otherwise clearly specified and defined, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0029] Refer to Figure 1 and Figure 2, in an embodiment of the present application, a control valve device 20 is provided and applied to an air conditioning system 10, such that the air conditioning system 10 includes the control valve device 20. The air conditioning system 10 further includes a heating unit 31, a cooling finned coil unit 32, a dehumidifying finned coil unit 33, a heat medium supply main pipe 34, a refrigerant supply main pipe 35, a heat medium delivery pipe 36, a first refrigerant delivery pipe 37, and a second refrigerant delivery pipe 38. Both the heat medium supply main pipe 34 and the heat medium delivery pipe 36 are connected to the control valve device 20. The heat medium supply main pipe 34 inputs the heat medium to the control valve device 20, and then the heat medium supply main pipe 34 transports the heat medium to the heating unit 31 through the heat medium delivery pipe 36. The heating unit 31 can heat the air to prevent the temperature of the air input to the workplace from being too low. The refrigerant supply main pipe 35, the first refrigerant delivery pipe 37, and the second refrigerant delivery pipe 38 are all connected to the control valve device 20. The refrigerant supply main pipe 35 inputs the refrigerant to the control valve device 20, and then the control valve device 20 inputs a part of the refrigerant to the cooling finned coil unit 32 through the first refrigerant delivery pipe 37, and the control valve device 20 inputs another part of the refrigerant to the dehumidifying finned coil unit 33 through the second refrigerant delivery pipe 38. When the air passes through the surface of the cooling finned coil unit 32, heat exchange occurs between the air and the refrigerant in the cooling finned coil unit 32, such that the refrigerant in the cooling finned coil unit 32 absorbs the heat of the air, thereby achieving the cooling of the air. When the air passes through the surface of the dehumidifying finned coil unit 33, heat exchange occurs between the air and the refrigerant in the dehumidifying finned coil unit 33, such that the refrigerant in the cooling finned coil unit 32 absorbs the heat of the air, thereby causing the water vapor in the air to liquefy into a liquid, thus reducing the water content in the air and achieving the dehumidification of the air. It can be understood that both the cooling finned coil unit 32 and the dehumidifying finned coil unit 33 have the functions of cooling and dehumidifying. However, the main function of the cooling finned coil unit 32 is cooling, while the main function of the dehumidifying finned coil unit 33 is dehumidifying.

[0030] Therefore, when the air passes through the dehumidifying finned coil unit 33 and the cooling finned coil unit 32, the temperature and humidity of the air decrease. When the air temperature is lower than the set value, the heating unit 31 can reheat the air, that is, heat exchange occurs between the heat medium in the heating unit 31 and the air, such that the air absorbs the heat of the heat medium and warms up, ultimately making the temperature and humidity of the air input to the workplace meet the set requirements.

[0031] Refer to Figure 1 and Figure 2 , in some embodiments, the control valve device 20 includes a control valve 100, a heat medium mechanism 200, and a refrigerant mechanism 300. The control valve 100 includes a heat medium valve core 110, a refrigerant valve core 120, and a connecting rod 130. Both the heat medium valve core 110 and the refrigerant valve core 120 are connected to the connecting rod 130.

[0032] The heat medium mechanism 200 includes a heat medium housing 210. The connecting rod 130 slidably passes through the heat medium housing 210. The heat medium valve core 110 is slidably arranged inside the heat medium housing 210. The heat medium valve core 110 and the heat medium housing 210 can enclose a heat supply channel 201. When the connecting rod 130 slides relative to the heat medium housing 210 along its own axial direction, the connecting rod 130 will drive the heat medium valve core 110 to slide in the heat medium housing 210, so that the volume of the heat supply channel 201 changes, that is, the volume of the heat supply channel 201 can be adjusted. The refrigerant mechanism 300 includes a refrigerant housing 310. The connecting rod 130 slidably passes through the refrigerant housing 310. The refrigerant valve core 120 is slidably arranged inside the refrigerant housing 310. The refrigerant valve core 120 and the refrigerant housing 310 can enclose a first refrigerant supply channel 301 and a second refrigerant supply channel 302. When the connecting rod 130 slides relative to the refrigerant housing 310 along its own axial direction, the connecting rod 130 will drive the refrigerant valve core 120 to slide in the refrigerant housing 310, so that the volumes of the first refrigerant supply channel 301 and the second refrigerant supply channel 302 change, that is, the volumes of the first refrigerant supply channel 301 and the second refrigerant supply channel 302 can be adjusted.

[0033] Refer to Figure 1 and Figure 2 , when the volume of the heat supply channel 201 changes, the change rules of the volumes of the first refrigerant supply channel 301 and the second refrigerant supply channel 302 are opposite. For example, when the volume of the first refrigerant supply channel 301 increases, the volume of the second refrigerant supply channel 302 decreases; when the volume of the first refrigerant supply channel 301 decreases, the volume of the second refrigerant supply channel 302 increases. The lumen of the heat medium delivery pipe 36 is communicated with the heat supply channel 201, so that the heat medium in the heat supply channel 201 is input into the heating unit 31 through the heat medium delivery pipe 36. The lumen of the first refrigerant delivery pipe 37 is communicated with the first refrigerant supply channel 301, so that the refrigerant in the first refrigerant supply channel 301 is input into the cooling fin-tube unit 32 through the first refrigerant delivery pipe 37. The lumen of the second refrigerant delivery pipe 38 is communicated with the second refrigerant supply channel 302, so that the refrigerant in the second refrigerant supply channel 302 is input into the dehumidifying fin-tube unit 33 through the second refrigerant delivery pipe 38. Therefore, when the volumes of the first refrigerant supply channel 301 and the second refrigerant supply channel 302 change, the flow rate of the refrigerant input into the cooling fin-tube unit 32 and the dehumidifying fin-tube unit 33 can be changed, so that the flow rates of the refrigerant in the cooling fin-tube unit 32 and the dehumidifying fin-tube unit 33 are not equal.

[0034] If the mode in which the refrigerant flow rates in the cooling surface cooler unit 32 and the dehumidifying surface cooler unit 33 cannot be adjusted is adopted, after the air is cooled and dehumidified by passing through the cooling surface cooler unit 32 and the dehumidifying surface cooler unit 33, the temperature of the air is relatively low. Thus, the heating unit 31 needs to heat the air by a large margin to make the temperature of the air meet the set requirements. This will cause the heating unit 31 to consume more heat medium, thereby increasing the energy consumption of the heating unit 31 and ultimately increasing the energy consumption of the entire air-conditioning system 10.

[0035] Refer to Figure 1 and Figure 2 For the air-conditioning system 10 in the above embodiment, in view of the fact that the air-conditioning system 10 adopts the control valve device 20, by adjusting the volumes of the first cooling channel 301 and the second cooling channel 302, the refrigerant flow rates input into the cooling surface cooler unit 32 and the dehumidifying surface cooler unit 33 can be changed. For example, when the volume of the first cooling channel 301 becomes smaller, the refrigerant flow rate input into the cooling surface cooler unit 32 becomes smaller, and the cooling capacity of the cooling surface cooler unit 32 decreases reasonably, making the temperature of the air passing through the cooling surface cooler unit 32 relatively high. Subsequently, the temperature of the air is equal to or slightly lower than the set temperature. Thus, the reheating of the air by the heating unit 31 can be reduced or even eliminated, thereby reducing or eliminating the consumption of the heat medium, that is, reducing the energy consumption of the heating unit 31 and ultimately reducing the energy consumption of the entire air-conditioning system 10.

[0036] It can be understood that when the volume of the first cooling channel 301 becomes smaller, the volume of the second cooling channel 302 becomes larger. Therefore, the refrigerant flow rate input into the cooling surface cooler unit 32 becomes smaller, while the refrigerant flow rate input into the dehumidifying surface cooler unit 33 becomes larger. Therefore, the dehumidifying effect of the cooling surface cooler unit 32 on the air decreases, but the dehumidifying surface cooler unit 33 with a larger refrigerant flow rate will increase the dehumidifying effect on the air. Thus, the dehumidifying surface cooler unit 33 can reasonably compensate for the weakened dehumidifying ability of the cooling surface cooler unit 32, and ultimately make the humidity of the air meet the set requirements. At the same time, the refrigerant flow rate input into the dehumidifying surface cooler unit 33 becomes larger, but due to the limitation of the chilled water temperature of the dehumidifying surface cooler unit 33 and the large latent heat of dehumidification of the air and the large consumption of cooling capacity, the temperature of the air passing through the dehumidifying surface cooler unit 33 decreases less. Overall, the temperature of the air after cooling and dehumidifying can be increased, and the reheating of the air by the heating unit 31 through the heat medium can be reduced or even eliminated, thereby reducing or eliminating the consumption of the heat medium, that is, reducing the energy consumption of the heating unit 31 and ultimately reducing the energy consumption of the entire air-conditioning system 10.

[0037] Refer to Figure 1 and Figure 2, in some embodiments, the heat medium shell 210 includes a shell body 211 and a support member 212. The shell body 211 encloses a heat medium chamber 2111. The support member 212 protrudes from the bottom wall surface of the heat medium chamber 2111, such that the support member 212 protrudes a certain height relative to the bottom wall surface. However, the top of the support member 212 is spaced from the top wall surface of the heat medium chamber 2111, such that the support member 212 does not extend to the top wall surface of the heat medium chamber 2111. The heat medium valve core 110 abuts against the side wall surface of the heat medium chamber 2111, and the heat medium valve core 110 can be carried on the top of the support member 212. A heat supply adjustment chamber 213 is formed between the heat medium valve core 110 and the shell body 211 and the support member 212. It can be understood that the heat supply adjustment chamber 213 is a part of the heat medium chamber 2111. When the distance between the heat medium valve core 110 and the support member 212 changes, the size of the opening of the heat supply adjustment chamber 213 located between the heat medium valve core 110 and the support member 212 changes, such that the volume of the heat supply adjustment chamber 213 also changes. For example, when the heat medium valve core 110 contacts the support member 212, the distance between the heat medium valve core 110 and the support member 212 is zero. At this time, the volume of the heat supply adjustment chamber 213 is the smallest, and the width of the opening of the heat supply adjustment chamber 213 located between the heat medium valve core 110 and the support member 212 is zero. When the heat medium valve core 110 moves away from the support member 212, the distance between the heat medium valve core 110 and the support member 212 increases. At this time, the volume of the heat supply adjustment chamber 213 increases, and the width of the opening of the heat supply adjustment chamber 213 located between the heat medium valve core 110 and the support member 212 increases. Obviously, when the heat medium valve core 110 moves closer to the support member 212, the distance between the heat medium valve core 110 and the support member 212 decreases. At this time, the volume of the heat supply adjustment chamber 213 decreases, and the width of the opening of the heat supply adjustment chamber 213 located between the heat medium valve core 110 and the support member 212 decreases.

[0038] Refer to Figure 1 and Figure 2 , a heat supply hole 2112 is formed on the side wall surface of the heat medium chamber 2111. The heat supply hole 2112 penetrates through the shell body 211, such that the heat supply hole 2112 communicates with the outside and the heat supply adjustment chamber 213. The heat supply passage 201 includes the heat supply adjustment chamber 213 and the heat supply hole 2112. The heat medium delivery pipe 36 is disposed at the heat supply hole 2112, such that the heat supply hole 2112 communicates with the lumen of the heat medium delivery pipe 36. Therefore, when the volume of the heat supply adjustment chamber 213 becomes larger, the volume of the heat supply passage 201 becomes larger, and the heat medium flow rate delivered by the heat supply passage 201 to the heating unit 31 through the heat medium delivery pipe 36 increases; when the volume of the heat supply adjustment chamber 213 becomes smaller, the volume of the heat supply passage 201 becomes smaller, and the heat medium flow rate delivered by the heat supply passage 201 to the heating unit 31 through the heat medium delivery pipe 36 decreases.

[0039] The main hot medium supply pipe 34 is connected to the shell body 211, so that the hot medium in the main hot medium supply pipe 34 enters the hot medium chamber 2111, then enters the heat supply adjustment chamber 213, and finally is conveyed to the heating unit 31 through the heat medium conveying pipe 36 via the heat supply hole 2112.

[0040] Refer to Figure 1 and Figure 2 , in some embodiments, the refrigerant shell 310 encloses a refrigerant chamber 311, and both ends of the refrigerant valve core 120 are in contact with two side wall surfaces of the refrigerant chamber 311 arranged oppositely. In this way, the refrigerant valve core 120 divides the refrigerant chamber 311 into two independent cavities, which are respectively denoted as the first cooling supply adjustment chamber 312 and the second cooling supply adjustment chamber 313, and the first cooling supply adjustment chamber 312 and the second cooling supply adjustment chamber 313 are arranged along the sliding direction of the refrigerant valve core 120. The refrigerant shell 310 is also provided with a first cooling supply hole 314 and a second cooling supply hole 315. The first cooling supply hole 314 and the second cooling supply hole 315 penetrate the refrigerant shell 310, so that the first cooling supply hole 314 communicates the first cooling supply adjustment chamber 312 with the outside, and the second cooling supply hole 315 communicates the second cooling supply adjustment chamber 313 with the outside. The first cooling supply channel 301 includes the first cooling supply hole 314 and the first cooling supply adjustment chamber 312, and the second cooling supply channel 302 includes the second cooling supply hole 315 and the second cooling supply adjustment chamber 313. The first refrigerant conveying pipe 37 is arranged at the first cooling supply hole 314, so that the lumen of the first refrigerant conveying pipe 37 communicates with the first cooling supply hole 314, and then the first cooling supply channel 301 inputs refrigerant to the cooling finned tube unit 32 through the first refrigerant conveying pipe 37. The second refrigerant conveying pipe 38 is arranged at the second cooling supply hole 315, so that the lumen of the second refrigerant conveying pipe 38 communicates with the second cooling supply hole 315, and then the second cooling supply channel 302 inputs refrigerant to the dehumidifying finned tube unit 33 through the second refrigerant conveying pipe 38.

[0041] In view of the fact that the refrigerant valve core 120 divides the refrigerant chamber 311 into the first cooling supply adjustment chamber 312 and the second cooling supply adjustment chamber 313, when the volume of the first cooling supply adjustment chamber 312 increases, the volume of the second cooling supply adjustment chamber 313 decreases. In this way, the flow rate of the refrigerant input by the first cooling supply channel 301 to the cooling finned tube unit 32 increases, while the flow rate of the refrigerant input by the second cooling supply channel 302 to the dehumidifying finned tube unit 33 decreases. When the volume of the first cooling supply adjustment chamber 312 decreases, the volume of the second cooling supply adjustment chamber 313 increases. In this way, the flow rate of the refrigerant input by the first cooling supply channel 301 to the cooling finned tube unit 32 decreases, while the flow rate of the refrigerant input by the second cooling supply channel 302 to the dehumidifying finned tube unit 33 increases.

[0042] Refer to Figure 1 and Figure 2, during the working process, when the connecting rod 130 moves upward, the heat medium valve core 110 moves away from the support 212, and the volume of the heat supply adjustment cavity 213 and the entire heat supply channel 201 increases. In this way, the heat medium flow rate of the heating unit 31 will be increased to improve the heating performance. The upward moving connecting rod 130 will simultaneously drive the refrigerant valve core 120 to move upward, reducing the volume of the first cooling adjustment cavity 312 and the entire first cooling channel 301. In this way, the refrigerant flow rate input to the cooling fin-tube unit 32 will be reduced. Therefore, the cooling energy of the cooling fin-tube unit 32 is reduced, making the air temperature flowing through the cooling fin-tube unit 32 higher. In this way, the heating of the air by the heating unit 31 can be reduced or even eliminated, thereby reducing energy consumption.

[0043] Refer to Figure 1 and Figure 2 , in some embodiments, the heat medium valve core 110 is slidably connected to the connecting rod 130, and the refrigerant valve core 120 is fixedly connected to the connecting rod 130. When the connecting rod 130 slides upward and weakens the cooling energy of the cooling fin-tube unit 32, the air temperature output from the cooling fin-tube unit 32 increases. At this time, the connecting rod 130 can remain stationary, and the heat medium valve core 110 gradually slides downward relative to the connecting rod 130, thereby reducing the heat medium supply amount of the heat supply channel 201 to the heating unit 31, thus reducing energy consumption. Of course, the heat medium valve core 110 can also be directly brought into contact with the support 212, so that the width of the opening of the heat supply adjustment cavity 213 between the heat medium valve core 110 and the support 212 is zero, so as to stop the heat medium supply of the heat supply channel 201 to the heating unit 31, thereby further reducing energy consumption.

[0044] Refer to Figure 1 and Figure 2 , in some embodiments, a plurality of input holes 316 are formed on one side wall surface of the refrigerant cavity 311. The plurality of input holes 316 are arranged at intervals along the sliding direction of the refrigerant valve core 120, and the input holes 316 communicate with the refrigerant cavity 311. The first cooling adjustment cavity 312 is also communicated with some of the input holes 316, and the second cooling adjustment cavity 313 is communicated with the other part of the input holes 316. When the refrigerant valve core 120 slides, the change rules of the number of input holes 316 communicated with the first cooling adjustment cavity 312 and the second cooling adjustment cavity 313 are opposite. For example, when the refrigerant valve core 120 slides upward and the volume of the first cooling adjustment cavity 312 becomes smaller, the number of input holes 316 communicated with the first cooling adjustment cavity 312 becomes smaller, while the number of input holes 316 communicated with the second cooling adjustment cavity 313 becomes larger; conversely, when the refrigerant valve core 120 slides downward and the volume of the first cooling adjustment cavity 312 becomes larger, the number of input holes 316 communicated with the first cooling adjustment cavity 312 becomes larger, while the number of input holes 316 communicated with the second cooling adjustment cavity 313 becomes smaller.

[0045] In some embodiments, the refrigerant mechanism 300 further includes a buffer housing 320. The buffer housing 320 is connected to the refrigerant housing 310. The buffer housing 320 defines a buffer chamber 321. The buffer chamber 321 communicates with all the input holes 316. The refrigerant supply main pipe 35 is connected to the buffer housing 320, so that the refrigerant in the refrigerant supply main pipe 35 enters the buffer chamber 321, and then enters the first cooling adjustment chamber 312 and the second cooling adjustment chamber 313 through different input holes 316. This facilitates the smooth entry of the refrigerant into the first cooling adjustment chamber 312 and the second cooling adjustment chamber 313.

[0046] Referring to Figure 1 and Figure 2 In some embodiments, the control valve device 20 further includes a fresh air valve 400. The fresh air valve 400 has a heat communication chamber 410, a first cold communication chamber 420, and a second cold communication chamber 430. The heat communication chamber 410, the first cold communication chamber 420, and the second cold communication chamber 430 are independent of each other. The volumes of the heat communication chamber 410, the first cold communication chamber 420, and the second cold communication chamber 430 can be equal. The heat communication chamber 410 communicates with the heat supply hole 2112 of the heat supply passage 201. The first cold communication chamber 420 communicates with the first cold supply hole 314 of the first cold supply passage 301. The second cold communication chamber 430 communicates with the second cold supply hole 315 of the second cold supply passage 302. When the liquid pressures in the heat communication chamber 410, the first cold communication chamber 420, and the second cold communication chamber 430 are all less than the set value, the fresh air valve 400 opens to introduce outside fresh air. This enables the fresh air to be input into the workplace under the action of the heating unit 31, the dehumidifying surface cooler unit 33, and the cooling surface cooler unit 32, thereby improving the air quality of the workplace.

[0047] Referring to Figure 1 and Figure 2 In some embodiments, the fresh air valve 400 includes a valve plate 440 and an elastic member 450. The elastic member 450 abuts against the valve plate 440. The heat communication chamber 410, the first cold communication chamber 420, and the second cold communication chamber 430 and the elastic member 450 are located on opposite sides of the valve plate 440. When the liquid pressures in the heat communication chamber 410, the first cold communication chamber 420, and the second cold communication chamber 430 are all less than the set value, the elastic member 450 pushes the valve plate 440 to move to open the fresh air valve 400. In fact, the fresh air valve 400 is normally closed under the action of the liquid pressure. When the liquid pressures in the heat communication chamber 410, the first cold communication chamber 420, and the second cold communication chamber 430 are all less than the set value, the elastic member 450 will overcome the liquid pressure and push the valve plate 440 to move, thereby realizing the opening of the fresh air valve 400.

[0048] It can be understood that when the pressure in the first cold connection chamber 420 is higher, it indicates that the refrigerant flow rate input by the first refrigerant supply channel 301 to the cooling finned coil unit 32 is larger and the energy consumption is higher. Conversely, when the pressure in the first cold connection chamber 420 is lower, the energy consumption is lower. Similarly, when the pressure in the second cold connection chamber 430 is higher, it indicates that the refrigerant flow rate input by the second refrigerant supply channel 302 to the dehumidifying finned coil unit 33 is larger and the energy consumption is higher. Conversely, when the pressure in the second cold connection chamber 430 is lower, the energy consumption is lower. Therefore, in the case of higher energy consumption, the temperature and humidity set values of the air conditioning system 10 can be increased, thereby reducing the energy consumption of the air conditioning system 10.

[0049] In some embodiments, the control valve device 20 further includes a PLC controller 500. The PLC controller 500 controls the movement of the connecting rod 130, thereby controlling the flow rates of the heat medium and the refrigerant. The PLC controller 500 can also be used to control the set values of the temperature and humidity of the air conditioning system 10.

[0050] Referring to Figure 3 , it can be understood that the process requirement for the temperature of the air conditioning system 10 is 24 ± 2 °C, the temperature set value of the air conditioner is 24 °C, and a temperature deviation of ±2 °C is allowed. Therefore, the allowable temperature range is 22 °C - 26 °C. The process requirement for the humidity of the air conditioning system 10 is 60 ± 10%, that is, a humidity deviation of ±10% is allowed for the air conditioner, and the allowable humidity range is 50% - 70%. Since the control accuracy of the actual operation of the air conditioner is usually relatively high, for example, the temperature control accuracy is ±1 °C and the humidity control accuracy is ±7%. Therefore, within the allowable temperature range of 22 °C - 26 °C, the temperature set value of the air conditioner can be 23 °C - 25 °C. Within the allowable humidity range of 50% - 70%, the humidity set value of the air conditioner can be 53% - 67%. Based on this, a rectangular enthalpy-humidity diagram rectangular coordinate system can be established. Point A (26 °C, 50%), point B (26 °C, 70%), point C (22 °C, 70%), and point D (22 °C, 50%). The line between AB is a straight line, the curve between BC is the 70% humidity curve, the line between CD is a straight line, and the curve between DA is the 50% humidity curve. The area formed by these four lines is the process allowable temperature and humidity range of the air conditioner. Within the area formed by these four lines is the process allowable temperature and humidity range of the air conditioner. After deducting the accuracy of the air conditioner, it is the temperature and humidity set values allowed to be set by the air conditioner, that is, the 25 °C straight line between ab, the 67% humidity curve between bc, the 23 °C straight line between cd, and the 53% humidity curve between da. The area formed by these four lines is the process allowable set temperature and humidity range of the air conditioner. By collecting the temperature and humidity values of each point on bc and da and inputting them into the PLC controller 500, the PLC controller 500 can automatically and dynamically adjust the temperature and humidity values of the air conditioning system 10.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0052] The above-described embodiments only express several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A control valve device is applied to an air conditioning system, characterized in that, The control valve device includes: A control valve, including a connecting rod, a heat medium valve core, and a refrigerant valve core, wherein the heat medium valve core and the refrigerant valve core are both connected to the connecting rod; A heat medium mechanism, including a heat medium housing, the connecting rod slidably penetrating through the heat medium housing, and the heat medium valve core slidably arranged within the heat medium housing to form a heat supply channel with adjustable volume together with the heat medium housing; A refrigerant mechanism, including a refrigerant housing, the connecting rod slidably penetrating through the refrigerant housing, and the refrigerant valve core slidably arranged within the refrigerant housing to form a first cooling supply channel and a second cooling supply channel with adjustable volume together with the refrigerant housing, wherein when the volume of the heat supply channel can change, the change rules of the volumes of the first cooling supply channel and the second cooling supply channel are opposite.

2. The control valve device according to claim 1, wherein The heat medium housing includes a housing body and a support member. The housing body encloses a heat medium chamber. The support member protrudes from the bottom wall surface of the heat medium chamber and is spaced from the top wall surface of the heat medium chamber. The heat medium valve core abuts against the side wall surface of the heat medium chamber and can be supported on the support member. A heat supply adjustment chamber is formed between the heat medium valve core and the housing body and the support member. When the distance between the heat medium valve core and the support member changes, the opening size of the heat supply adjustment chamber located between the heat medium valve core and the support member changes. A heat supply hole communicating the heat supply adjustment chamber and the outside is formed on the side wall surface of the heat medium chamber. The heat supply channel includes the heat supply adjustment chamber and the heat supply hole.

3. The control valve device according to claim 1, wherein The refrigerant housing encloses a refrigerant chamber. The two ends of the refrigerant valve core are abutted against the two opposite side wall surfaces of the refrigerant chamber, so that the refrigerant valve core divides the refrigerant chamber into an independent first cooling supply adjustment chamber and a second cooling supply adjustment chamber. The refrigerant housing is provided with a first cooling supply hole and a second cooling supply hole. The first cooling supply channel includes the first cooling supply hole and the first cooling supply adjustment chamber which are communicated with each other. The second cooling supply channel includes the second cooling supply hole and the second cooling supply adjustment chamber which are communicated with each other.

4. The control valve device according to claim 3, characterized in that, A plurality of input holes are formed on one of the side wall surfaces of the refrigerant chamber, and the plurality of input holes are spaced along the sliding direction of the refrigerant valve core and communicated with the refrigerant chamber. When the refrigerant valve core slides, the change rules of the number of the input holes communicated with the first cooling supply adjustment chamber and the second cooling supply adjustment chamber are opposite.

5. The control valve device according to claim 4, characterized in that, The refrigerant mechanism further includes a buffer housing, and the buffer housing encloses a buffer chamber which is communicated with all the input holes.

6. The control valve device according to claim 1, wherein It further includes a fresh air valve, which has an independent heat communication chamber, a first cold communication chamber, and a second cold communication chamber. The heat communication chamber is communicated with the heat supply channel. The first cold communication chamber is communicated with the first cooling supply channel. The second cold communication chamber is communicated with the second cooling supply channel. When the liquid pressures in the heat communication chamber, the first cold communication chamber, and the second cold communication chamber are all less than the set value, the fresh air valve opens to introduce outside fresh air.

7. The control valve device according to claim 6, characterized in that, The fresh air valve includes a valve plate and an elastic member. The elastic member abuts against the valve plate. The heat communication chamber, the first cold communication chamber, and the second cold communication chamber, and the elastic member are located on opposite sides of the valve plate. When the liquid pressures in the heat communication chamber, the first cold communication chamber, and the second cold communication chamber are all less than the set value, the elastic member pushes the valve plate to move to open the fresh air valve.

8. The control valve device according to claim 6, characterized in that, The volumes of the heat communication chamber, the first cold communication chamber, and the second cold communication chamber are equal.

9. The control valve device according to claim 1, wherein, The heat medium valve core is slidably connected to the connecting rod, and the refrigerant valve core is fixedly connected to the connecting rod.

10. The control valve device according to claim 1, characterized in that, It further includes a PLC controller. The PLC controller controls the movement of the connecting rod, and the PLC controller is also used to control the set values of the temperature and humidity of the air conditioning system.

Images