Temperature and humidity control system

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a temperature and humidity control system which comprises a case, a compressor, a first condenser, a second condenser, a switching mechanism, an evaporator and a control mechanism. The compressor and the first condenser are arranged outside the case, and the compressor comprises an air return port and an exhaust port; the second condenser is arranged in the airflow channel; the switching mechanism comprises a first connector, a second connector and a third connector, the exhaust port is communicated with the first connector, the first condenser inlet is communicated with the second connector, and the second condenser inlet is communicated with the third connector; the evaporator is arranged in the airflow channel, an inlet of the evaporator communicates with an outlet of the first condenser and an outlet of the second condenser, and an outlet of the evaporator communicates with the air return port; and the control mechanism is used for controlling the first interface to be communicated with the second interface or controlling the first interface to be communicated with the third interface. The temperature and humidity control system provided by the utility model can reduce the energy consumption and the temperature control cost.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a temperature and humidity control system. Background Art

[0002] In cigarette production workshops, a temperature control system is usually installed to ensure a constant temperature in the workshop. The temperature control system usually includes an air conditioning unit and an air flow channel. The air conditioning unit usually includes a condenser and an evaporator. The air flow channel is used to transport gas to the production workshop. The condenser and the evaporator are both located in the air flow channel. The condenser is used to heat the gas in the air flow channel, and the evaporator is used to cool the gas in the air flow channel, so that the gas temperature in the air flow channel is relatively constant to keep the temperature in the workshop meeting the requirements. However, the current temperature control system has high energy consumption, resulting in high temperature control costs. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems of high energy consumption and high temperature control cost of the current temperature control system. The utility model provides a temperature and humidity control system, which can reduce energy consumption and reduce temperature control cost.

[0004] In order to solve the above technical problems, it was discovered through exploration that when the workshop temperature is too high in summer, the condenser will release heat to the outside, thereby increasing the temperature in the air flow channel and reducing the cooling effect. This causes the air-conditioning unit to consume greater power for cooling in order to meet the temperature requirements in the workshop, resulting in higher energy consumption.

[0005] The embodiment of the utility model provides a temperature and humidity control system for controlling the temperature and humidity in a workshop, comprising:

[0006] A chassis, wherein an air flow channel is provided therein, the air flow channel is provided with an air inlet and an air outlet, and the air outlet is connected to the interior of the workshop;

[0007] A compressor is arranged outside the chassis, and the compressor includes an air return port and an air exhaust port;

[0008] A first condenser is arranged outside the chassis, and the first condenser comprises a first condenser inlet and a first condenser outlet;

[0009] A second condenser is disposed in the air flow channel, and the second condenser includes a second condenser inlet and a second condenser outlet;

[0010] The switching mechanism includes a first interface, a second interface and a third interface, the exhaust port of the compressor is connected to the first interface, the inlet of the first condenser is connected to the second interface, and the inlet of the second condenser is connected to the third interface;

[0011] An evaporator is arranged in the air flow channel, and along the flow direction of the gas in the air flow channel, the evaporator is arranged downstream of the second condenser, the evaporator includes an evaporator inlet and an evaporator outlet, the evaporator inlet is respectively connected to the first condenser outlet and the second condenser outlet, and the evaporator outlet is connected to the return air port;

[0012] The control mechanism is electrically connected to the switching mechanism. The control mechanism can detect the temperature and humidity of the air in the workshop, and control the first interface to be connected to the second interface or control the first interface to be connected to the third interface according to the temperature and humidity values.

[0013] According to another specific embodiment of the utility model, it also includes a refrigerant pipeline, the refrigerant pipeline includes a plurality of refrigerant pipelines, each refrigerant pipeline is used to realize the connection between the compressor, the switching mechanism, the first condenser, the second condenser and the evaporator, the refrigerant passes through the refrigerant pipeline, a first one-way valve is provided on the refrigerant pipeline near the outlet of the first condenser, the first one-way valve allows the refrigerant in the first condenser to flow out through the outlet of the first condenser, and the first one-way valve can prevent the refrigerant from flowing into the first condenser through the outlet of the first condenser, a second one-way valve is provided on the refrigerant pipeline near the outlet of the second condenser, the second one-way valve allows the refrigerant in the second condenser to flow out through the outlet of the second condenser, and the second one-way valve can prevent the refrigerant from flowing into the second condenser through the outlet of the second condenser.

[0014] According to another specific embodiment of the utility model, an expansion valve is provided upstream of the evaporator along the flow direction of the refrigerant, the expansion valve is provided outside the chassis, and the expansion valve is provided on the refrigerant pipeline, and the expansion valve is used to control the flow rate of the refrigerant.

[0015] According to another specific embodiment of the utility model, it also includes a blower, which is arranged on one side of the air flow channel close to the air outlet, and the blower is used to send the gas in the air flow channel to the workshop through the air outlet.

[0016] According to another specific embodiment of the utility model, the switching mechanism is a four-way valve, which also includes a fourth interface, which is connected to the return air port of the compressor, and the pressure in the four-way valve can be released outwardly through the fourth interface.

[0017] According to another specific embodiment of the utility model, it also includes an electric heater, which is arranged upstream of the blower along the flow direction of the gas in the airflow channel, and the electric heater is arranged downstream of the evaporator. The electric heater is used to heat the gas in the airflow channel. The electric heater is electrically connected to the control mechanism, and the control mechanism is used to control the start and stop of the electric heater.

[0018] According to another specific embodiment of the utility model, a humidifier is also included. Along the flow direction of the gas in the airflow channel, the humidifier is arranged downstream of the electric heater, and the humidifier is located upstream of the blower. The humidifier is used to humidify the gas in the airflow channel. The humidifier is electrically connected to the control mechanism, and the control mechanism is used to control the start and stop of the humidifier.

[0019] According to another specific embodiment of the utility model, it also includes a filter, which is arranged upstream of the second condenser along the flow direction of the gas in the airflow channel. The filter, the second condenser, the evaporator, the electric heater, the humidifier and the blower are arranged in sequence along the flow direction of the gas in the airflow channel.

[0020] According to another specific embodiment of the utility model, it also includes an air mixing chamber, which is arranged at one end of the air flow channel close to the air inlet, the air mixing chamber includes a fresh air inlet, a return air inlet and a mixed air outlet, the fresh air inlet is connected to the external air source, the return air inlet is connected to the interior of the workshop, the gas entering the air mixing chamber through the fresh air inlet and the return air inlet forms mixed air, the mixed air outlet is connected to the air inlet of the air flow channel, and an air supply valve is provided in the air mixing chamber, which is used to send the mixed air in the air mixing chamber into the air flow channel through the mixed air outlet.

[0021] According to another specific embodiment of the utility model, the control mechanism includes:

[0022] The temperature sensor is installed in the workshop and is used to detect the temperature of the air in the workshop;

[0023] Humidity sensor, installed in the workshop, the humidity sensor is used to detect the humidity of the air in the workshop;

[0024] The control module is electrically connected to the temperature sensor, the humidity sensor, the electric heater, the humidifier and the switching mechanism, respectively. The control module can control the first interface and the second interface of the switching mechanism, or the first interface and the third interface to be connected, and control the start and stop of the electric heater according to the temperature of the air in the workshop, the preset temperature and the value of the preset temperature error. The control module can also control the start and stop of the humidifier according to the humidity of the air in the workshop, the preset humidity and the value of the preset humidity error.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The utility model is provided with a first condenser located outside the chassis, a second condenser located in the air flow channel, and a switching mechanism for switching the operation of the first condenser and the second condenser. When the workshop needs to be refrigerated, the control mechanism controls the first interface of the switching mechanism to be connected with the second interface, so that the inlet of the first condenser is connected with the exhaust port of the compressor, the first condenser and the evaporator are put into operation, and the second condenser is not put into operation. Since the first condenser is located outside the air flow channel, the first condenser will not affect the refrigeration effect of the evaporator when it is working, thereby saving energy consumption. When the workshop needs to be heated, the control mechanism controls the first interface of the switching mechanism to be connected with the third interface, so that the inlet of the second condenser is connected with the exhaust port of the compressor, the second condenser and the evaporator are put into operation, and the first condenser is not put into operation. When the second condenser is working, it releases heat to the air flow channel, thereby playing an auxiliary role in increasing the temperature in the workshop, further saving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram showing a temperature and humidity control system provided by an embodiment of the utility model is shown;

[0028] Figure 2 Show Figure 1 A partial enlarged view of part A;

[0029] Figure 3 A schematic diagram showing a temperature and humidity control system provided by another embodiment of the utility model.

[0030] Reference numerals:

[0031] 1. Chassis; 2. Compressor; 21. Return air port; 22. Exhaust port; 3. First condenser; 31. First condenser inlet; 32. First condenser outlet; 4. Second condenser; 41. Second condenser inlet; 42. Second condenser outlet; 5. Switching mechanism; 51. First interface; 52. Second interface; 53. Third interface; 54. Fourth interface; 6. Evaporator; 61. Evaporator inlet; 62. Evaporator outlet; 7. Air flow channel; 71. Air inlet; 72. Air outlet; 8. Refrigerant pipeline; 9. Expansion valve; 10. Blower; 11. Electric heater; 12. Humidifier; 13. Filter; 14. Mixing chamber; 141. Fresh air inlet; 142. Return air inlet; 143. Mixing air outlet; 15. First one-way valve; 16. Second one-way valve. DETAILED DESCRIPTION

[0032] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0033] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0034] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0035] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0036] At present, the temperature control system in cigarette production workshops consumes a lot of energy, resulting in high temperature control costs.

[0037] In order to solve the above technical problems, it was discovered through exploration that when the workshop temperature is too high in summer, the condenser will release heat to the outside, thereby increasing the temperature in the air flow channel and reducing the cooling effect. This causes the air-conditioning unit to consume greater power for cooling in order to meet the temperature requirements in the workshop, resulting in higher energy consumption.

[0038] The utility model provides a temperature and humidity control system, which can reduce energy consumption and reduce temperature control costs.

[0039] In order to make the technical solution and advantages of the present invention more clear, the implementation methods of the present invention are described in further detail below.

[0040] refer to Figure 1and Figure 2 The embodiment of the utility model provides a temperature and humidity control system, including a chassis 1, a compressor 2, a first condenser 3, a second condenser 4, a switching mechanism 5, an evaporator 6 and a control mechanism (not shown in the figure), an air flow channel 7 is provided in the chassis 1, and an air inlet 71 and an air outlet 72 are provided at both ends of the air flow channel 7, and the air outlet 72 is connected to the inside of the workshop. The compressor 2 is arranged outside the chassis 1, and the compressor 2 includes a return air port 21 and an exhaust port 22. The first condenser 3 is arranged outside the chassis 1, and the first condenser 3 includes a first condenser inlet 31 and a first condenser outlet 32. The second condenser 4 is arranged in the air flow channel 7, and the second condenser 4 includes a second condenser inlet 41 and a second condenser outlet 42. The switching mechanism 5 includes a first interface 51, a second interface 52 and a third interface 53, the exhaust port 22 of the compressor 2 is connected to the first interface 51, the first condenser inlet 31 is connected to the second interface 52, and the second condenser inlet 41 is connected to the third interface 53. The evaporator 6 is arranged in the air flow channel 7, and is arranged downstream of the second condenser 4 along the flow direction of the gas in the air flow channel 7. The evaporator 6 includes an evaporator inlet 61 and an evaporator outlet 62. The evaporator inlet 61 is respectively connected to the first condenser outlet 32 ​​and the second condenser outlet 42, and the evaporator outlet 62 is connected to the return air port 21. The control mechanism is electrically connected to the switching mechanism 5, and the control mechanism can detect the temperature of the air in the workshop, and control the first interface 51 to be connected to the second interface 52, or control the first interface 51 to be connected to the third interface 53 according to the temperature value.

[0041] For example, reference Figure 2 The switching mechanism 5 is a four-way valve, which further includes a fourth interface 54, which is connected to the return air port 21 of the compressor 2, and the pressure in the four-way valve can be released outward through the fourth interface 54. When the pressure in the four-way valve is relatively high, the pressure in the four-way valve can be released by opening the fourth interface 54, thereby avoiding the problem that the four-way valve fails due to excessive pressure and cannot be switched.

[0042] Optional, reference Figure 1The temperature and humidity control system provided in this embodiment also includes a refrigerant pipeline 8, which includes a plurality of refrigerant pipelines, each of which is used to realize the connection between the compressor 2, the switching mechanism 5, the first condenser 3, the second condenser 4 and the evaporator 6, and the refrigerant is passed through the refrigerant pipeline 8. Exemplarily, the refrigerant is a refrigerant. A first one-way valve 15 is provided on the refrigerant pipeline 8 near the first condenser outlet 32, and the first one-way valve 15 allows the refrigerant in the first condenser 3 to flow out through the first condenser outlet 32, and the first one-way valve 15 can prevent the refrigerant from flowing into the first condenser 3 through the first condenser outlet 32. A second one-way valve 16 is provided on the refrigerant pipeline 8 near the second condenser outlet 42, and the second one-way valve 16 allows the refrigerant in the second condenser 4 to flow out through the second condenser outlet 42, and the second one-way valve 16 can prevent the refrigerant from flowing into the second condenser 4 through the second condenser outlet 42.

[0043] When the control mechanism detects that the temperature of the air in the workshop is higher than the preset temperature and the temperature in the workshop needs to be lowered, the control mechanism controls the first interface 51 to be connected with the second interface 52, so that the first condenser inlet 31 is connected with the exhaust port 22 of the compressor 2, so that the refrigerant in the refrigerant pipeline 8 circulates in a path that passes through the compressor 2, the first condenser 3, the evaporator 6, and then returns to the compressor 2. The evaporator 6 located in the air flow channel 7 can absorb external heat when working, thereby reducing the temperature of the gas in the air flow channel 7 to reduce the temperature in the workshop. At this time, the first condenser 3 is put into operation, while the second condenser 4 is not put into operation. Since the first condenser 3 is located outside the air flow channel 7, the first condenser 3 will not affect the refrigeration effect of the evaporator 6 when working, thereby saving energy consumption.

[0044] When the control mechanism detects that the temperature of the air in the workshop is lower than the preset temperature and the temperature in the workshop needs to be increased, the control mechanism controls the first interface 51 to be connected with the third interface 53, so that the second condenser inlet 41 is connected with the exhaust port 22 of the compressor 2, so that the refrigerant circulates in a path that passes through the compressor 2, the second condenser 4, the evaporator 6, and then returns to the compressor 2. At this time, the second condenser 4 and the evaporator 6 are put into operation, while the first condenser 3 is not put into operation. When the second condenser 4 is in operation, it releases heat to the air flow channel 7, thereby playing an auxiliary role in increasing the temperature in the workshop and further saving energy consumption.

[0045] Optional, reference Figure 1, along the flow direction of the refrigerant, an expansion valve 9 is provided upstream of the evaporator 6, the expansion valve 9 is provided outside the chassis 1, and the expansion valve 9 is provided on the refrigerant pipeline 8, and the expansion valve 9 is used to control the flow of the refrigerant. When it is necessary to adjust the refrigeration efficiency of the evaporator 6 according to the temperature in the workshop, it can be achieved by controlling the flow of the refrigerant through the expansion valve 9. When the temperature in the workshop is lower than the preset temperature, the flow of the refrigerant can be reduced by the expansion valve 9, so that the refrigerant flowing to the evaporator 6 is reduced, thereby reducing the refrigeration efficiency of the evaporator 6, so that the heating efficiency of the second condenser 4 is greater than the refrigeration efficiency of the evaporator 6, thereby increasing the temperature in the workshop. When the temperature in the workshop is higher than the preset temperature, the flow of the refrigerant can be increased by the expansion valve 9, so that the refrigerant flowing to the evaporator 6 is increased, so as to improve the refrigeration efficiency of the evaporator 6, so that the temperature in the workshop can be quickly reduced to the preset temperature.

[0046] Optional, reference Figure 1 The temperature and humidity control system provided in this embodiment further includes a blower 10, which is arranged on one side of the air flow channel 7 near the air outlet 72. The blower 10 is used to deliver the gas in the air flow channel 7 to the workshop through the air outlet 72. The utility model provides the blower 10 in the air flow channel 7, so as to facilitate delivering the gas in the air flow channel 7 to the workshop, so as to adjust the temperature in the workshop so that the temperature in the workshop meets the requirements.

[0047] Optional, reference Figure 1 The temperature and humidity control system provided in this embodiment further includes an electric heater 11, which is arranged along the flow direction of the gas in the air flow channel 7 (such as Figure 1 As shown in the M direction in FIG. 1 , the electric heater 11 is arranged upstream of the blower 10 and downstream of the evaporator 6. The electric heater 11 is used to heat the gas in the air flow channel 7. The electric heater 11 is electrically connected to the control mechanism, and the control mechanism is used to control the start and stop of the electric heater 11. When it is difficult to raise the temperature in the workshop to the preset temperature only by the second condenser 4, the control mechanism controls the start of the electric heater 11 to assist in heating. When the temperature in the workshop reaches the requirement, the electric heater 11 is preferentially stopped to save energy.

[0048] Optional, reference Figure 1 The temperature and humidity control system provided in this embodiment further includes a humidifier 12, which is arranged downstream of the electric heater 11 along the flow direction of the gas in the air flow channel 7, and the humidifier 12 is located upstream of the blower 10, and is used to humidify the gas in the air flow channel 7. The humidifier 12 is electrically connected to the control mechanism, and the control mechanism is used to control the start and stop of the humidifier 12. When the humidity in the workshop is lower than the preset humidity, the control mechanism controls the humidifier 12 to start, so that the humidity in the workshop meets the requirement.

[0049] Optional, reference Figure 1The temperature and humidity control system provided in this embodiment further includes a filter 13, which is arranged upstream of the second condenser 4 along the flow direction of the gas in the airflow channel 7. The filter 13, the second condenser 4, the evaporator 6, the electric heater 11, the humidifier 12 and the blower 10 are arranged in sequence along the flow direction of the gas in the airflow channel 7. By setting the filter 13, the utility model can filter out impurities such as tiny particles and dust in the gas in the airflow channel 7 to prevent the workshop from being polluted.

[0050] For example, the temperature and humidity control system provided in this embodiment may be provided with more than one set of compressor 2, first condenser 3, second condenser 4, switching mechanism 5 and evaporator 6, such as Figure 3 As shown, the temperature and humidity control system includes two sets of heat exchange mechanisms consisting of a compressor 2, a first condenser 3, a second condenser 4, a switching mechanism 5 and an evaporator 6. Along the flow direction of the gas in the air flow channel 7, the second set of heat exchange mechanisms is located downstream of the first set of heat exchange mechanisms. When it is necessary to increase the total power of cooling or heating, the two sets of heat exchange mechanisms can be enabled at the same time. Among them, in the second set of heat exchange mechanisms, along the flow direction of the gas in the air flow channel 7, the second condenser 4 is located downstream of the blower 10. When the temperature in the workshop is lower than the preset temperature, the control mechanism can control the second condenser 4 to work to assist in heating so that the temperature in the workshop rises to the preset temperature.

[0051] Optional, reference Figure 1 and Figure 3 The temperature and humidity control system provided in this embodiment also includes a mixed air chamber 14, which is arranged at one end of the air flow channel 7 near the air inlet 71. The mixed air chamber 14 includes a fresh air inlet 141, a return air inlet 142 and a mixed air outlet 143. The fresh air inlet 141 is connected to an external air source, and the return air inlet 142 is connected to the interior of the workshop. The gas entering the mixed air chamber 14 through the fresh air inlet 141 and the return air inlet 142 forms mixed air. The mixed air outlet 143 is connected to the air inlet 71 of the air flow channel 7. An air supply valve (not shown in the figure) is arranged in the mixed air chamber 14. The air supply valve is used to send the mixed air in the mixed air chamber 14 into the air flow channel 7 through the mixed air outlet 143. The utility model can reasonably utilize the return air by combining the fresh air and the return air to save energy consumption.

[0052] Optionally, the control mechanism includes a temperature sensor (not shown in the figure), a humidity sensor (not shown in the figure), and a control module (not shown in the figure). The temperature sensor is disposed in the workshop and is used to detect the temperature T1 of the air in the workshop. The humidity sensor is disposed in the workshop and is used to detect the humidity H1 of the air in the workshop. The control module is electrically connected to the temperature sensor, the humidity sensor, the electric heater 11, the humidifier 12, and the switching mechanism 5 respectively. The control module can control the first interface 51 of the switching mechanism 5 to communicate with the second interface 52, or control the first interface 51 to communicate with the third interface 53, and control the start and stop of the electric heater 11 according to the values of the temperature T1 of the air in the workshop, the preset temperature T2, and the preset temperature error T3. Wherein, the preset temperature T2 is the qualified value of the temperature of the air in the workshop set in advance, and the preset temperature error T3 is the allowable error value between the actual value and the qualified value of the temperature of the air in the workshop. When the value of the temperature T1 of the air in the workshop is within the range of T2 - T3 to T2 + T3, the temperature of the air in the workshop meets the requirements at this time. For example, T2 can be set to 25 °C and T3 to 2 °C. When the value of the temperature T1 of the air in the workshop is within the range of 23 °C to 27 °C, it indicates that the temperature in the workshop meets the requirements at this time.

[0053] The control module can also control the start and stop of the humidifier 12 according to the values of the humidity H1 of the air in the workshop, the preset humidity H2, and the preset humidity error H3. Wherein, the preset humidity H2 is the qualified value of the humidity of the air in the workshop set in advance, and the preset humidity error H3 is the allowable error value between the actual value and the qualified value of the humidity of the air in the workshop. When the value of the humidity H1 of the air in the workshop is within the range of H2 - H3 to H2 + H3, the humidity of the air in the workshop meets the requirements at this time. For example, H2 can be set to 60% and H3 to 5%. When the value of the humidity H1 of the air in the workshop is within the range of 55% to 65%, it indicates that the humidity in the workshop meets the requirements at this time.

[0054] Specifically, when the temperature sensor detects that T1 ≥ T2 + T3, the workshop temperature is relatively high at this time. The control module controls the first interface 51 to communicate with the second interface 52, puts the first condenser 3 and the evaporator 6 into operation for refrigeration work, and controls the electric heater 11 to turn off. When T2 + T3 ≥ T1 ≥ T2 - T3, the temperature in the workshop meets the requirements at this time. The control module controls both the switching mechanism 5 and the electric heater 11 to maintain their current states. When T1 < T2 - T3, the workshop temperature is relatively low at this time. Control the first interface 51 to communicate with the third interface 53, put the second condenser 4 into operation, and control the electric heater 11 to start.

[0055] Further, when the humidity sensor detects that H1≥H2 + H3, the humidity in the workshop is relatively high at this time, and the control module controls the humidifier 12 to turn off. When H2 + H3≥H1≥H2 - H3, the control module controls the humidifier 12 to maintain its current state. When H1 < H2 - H3, the control module controls the humidifier 12 to start.

[0056] Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, those of ordinary skill in the art should understand that the above content is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited only to these descriptions. Those skilled in the art can make various changes in form and detail, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A temperature and humidity control system for controlling the temperature and humidity in a workshop, characterized in that: The temperature and humidity control system comprises: A chassis, wherein an air flow channel is provided therein, wherein the air flow channel is provided with an air inlet and an air outlet, and the air outlet is connected to the interior of the workshop; A compressor is arranged outside the chassis, and the compressor includes an air return port and an air exhaust port; A first condenser is disposed outside the chassis, wherein the first condenser comprises a first condenser inlet and a first condenser outlet; A second condenser is disposed in the air flow channel, the second condenser comprising a second condenser inlet and a second condenser outlet; A switching mechanism, comprising a first interface, a second interface and a third interface, the exhaust port of the compressor is connected to the first interface, the first condenser inlet is connected to the second interface, and the second condenser inlet is connected to the third interface; an evaporator, arranged in the air flow channel, and arranged downstream of the second condenser along the flow direction of the gas in the air flow channel, the evaporator comprising an evaporator inlet and an evaporator outlet, the evaporator inlet is respectively connected to the first condenser outlet and the second condenser outlet, and the evaporator outlet is connected to the return air port; A control mechanism is electrically connected to the switching mechanism, and the control mechanism can detect the temperature of the air in the workshop, and control the first interface to be connected to the second interface according to the value of the temperature, or control the first interface to be connected to the third interface.

2. The temperature and humidity control system according to claim 1, characterized in that: It also includes a refrigerant pipeline, which includes multiple refrigerant pipelines, each of which is used to achieve the connection between the compressor, the switching mechanism, the first condenser, the second condenser and the evaporator. Refrigerant flows through the refrigerant pipeline. A first one-way valve is provided on the refrigerant pipeline near the outlet of the first condenser. The first one-way valve allows the refrigerant in the first condenser to flow out through the outlet of the first condenser, and the first one-way valve can prevent the refrigerant from flowing into the first condenser through the outlet of the first condenser. A second one-way valve is provided on the refrigerant pipeline near the outlet of the second condenser. The second one-way valve allows the refrigerant in the second condenser to flow out through the outlet of the second condenser, and the second one-way valve can prevent the refrigerant from flowing into the second condenser through the outlet of the second condenser.

3. The temperature and humidity control system according to claim 2, characterized in that: Along the flow direction of the refrigerant, an expansion valve is provided upstream of the evaporator, the expansion valve is provided outside the chassis, and the expansion valve is provided on the refrigerant pipeline, and the expansion valve is used to control the flow rate of the refrigerant.

4. The temperature and humidity control system according to claim 3, characterized in that: It also includes an air blower, which is arranged on one side of the air flow channel close to the air outlet, and the air blower is used to send the gas in the air flow channel to the workshop through the air outlet.

5. The temperature and humidity control system according to claim 4, characterized in that: The switching mechanism is a four-way valve, and the four-way valve also includes a fourth interface, and the fourth interface is connected to the return air port of the compressor. The pressure in the four-way valve can be released to the outside through the fourth interface.

6. The temperature and humidity control system according to claim 5, characterized in that: It also includes an electric heater, which is arranged upstream of the blower along the flow direction of the gas in the airflow channel, and the electric heater is arranged downstream of the evaporator. The electric heater is used to heat the gas in the airflow channel. The electric heater is electrically connected to the control mechanism, and the control mechanism is used to control the start and stop of the electric heater.

7. The temperature and humidity control system according to claim 6, characterized in that: It also includes a humidifier, which is arranged downstream of the electric heater along the flow direction of the gas in the airflow channel, and the humidifier is located upstream of the blower. The humidifier is used to humidify the gas in the airflow channel. The humidifier is electrically connected to the control mechanism, and the control mechanism is used to control the start and stop of the humidifier.

8. The temperature and humidity control system according to claim 7, characterized in that: It also includes a filter, which is arranged upstream of the second condenser along the flow direction of the gas in the airflow channel. The filter, the second condenser, the evaporator, the electric heater, the humidifier and the blower are arranged in sequence along the flow direction of the gas in the airflow channel.

9. The temperature and humidity control system according to claim 8, characterized in that: It also includes an air mixing chamber, which is arranged at one end of the air flow channel close to the air inlet, the air mixing chamber includes a fresh air inlet, a return air inlet and a mixed air outlet, the fresh air inlet is connected to an external air source, the return air inlet is communicated with the interior of the workshop, the gas entering the air mixing chamber through the fresh air inlet and the return air inlet forms mixed air, the mixed air outlet is communicated with the air inlet of the air flow channel, an air supply valve is provided in the air mixing chamber, and the air supply valve is used to send the mixed air in the air mixing chamber into the air flow channel through the mixed air outlet.

10. The temperature and humidity control system according to claim 9, characterized in that: The control mechanism comprises: A temperature sensor is provided in the workshop, and is used to detect the temperature of the air in the workshop; A humidity sensor is provided in the workshop, and is used to detect the humidity of the air in the workshop; A control module is electrically connected to the temperature sensor, the humidity sensor, the electric heater, the humidifier and the switching mechanism, respectively. The control module can control the first interface and the second interface of the switching mechanism according to the temperature of the air in the workshop, the preset temperature and the value of the preset temperature error, or control the first interface to be connected to the third interface, and control the start and stop of the electric heater; the control module can also control the start and stop of the humidifier according to the humidity of the air in the workshop, the preset humidity and the value of the preset humidity error.

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