Environmental control equipment

Abstract

The invention provides environment control equipment which comprises a cabinet provided with an air channel for airflow to flow through, and the air channel is provided with an air inlet for airflow to flow in and an air outlet for airflow of the air channel to flow to a control area; the fan is used for driving airflow to flow and is arranged in the air duct; the heat exchanger and the at least two stages of electric heating devices are used for cooperatively controlling the temperature of airflow in the air duct and are sequentially arranged in the air duct in the flowing direction of the airflow; the temperature detection assembly is used for detecting the heat exchanger outlet air temperature of the heat exchanger outlet, the non-last-stage electric heating outlet air temperature of the at least two stages of electric heating devices and the air duct outlet air temperature; and the controller can control the heat exchanger and the at least two stages of electric heating devices according to a detection result of the temperature detection assembly. The environment control equipment can output air volume with accurate temperature by adjusting the fan and / or the heat exchanger and the at least two stages of electric heating devices according to different environment control requirements, so that the requirement of an accurate temperature control environment on the air volume temperature can be met.

Description

Technical Field

[0001] This application relates to the field of environmental control technology, specifically to an environmental control device. Background Technology

[0002] Environmental control equipment, also known as environmental control equipment, is mainly used to monitor, regulate, and control a specific environment in order to maintain environmental parameters within a set range, thereby meeting the needs of people's production, life, and scientific research activities.

[0003] In the process of realizing the above solution, the inventors discovered that the existing technology has at least the following technical problems: Traditional environmental control equipment often cannot output air volume with accurate temperature, especially under the conditions of large air volume and high noise in the air duct, it cannot meet the requirements of air volume and temperature for precise temperature control environment. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide an environmental control device to achieve an air volume with precise output temperature, thereby meeting the requirements of a precise temperature control environment for air volume and temperature.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] An environmental control device, comprising:

[0007] The cabinet is equipped with an air duct through which airflow passes. The air duct has an air inlet for airflow into the control area and an air outlet for airflow from the air duct to the control area.

[0008] A fan for driving airflow, the fan being disposed within the air duct;

[0009] Used to control the airflow temperature within the duct so that the outlet air temperature of the duct reaches the target outlet air temperature T1. 目标 The heat exchanger and at least two electric heating devices are arranged sequentially in the air duct along the flow direction of the airflow.

[0010] A temperature detection component is used to detect the heat exchanger outlet air temperature T2 at the heat exchanger outlet, the non-final stage electric heating outlet air temperature Tn at the outlet of the non-final stage electric heating device of the at least two-stage electric heating device, and the duct outlet air temperature T1 at the outlet of the final stage electric heating device.

[0011] The controller is capable of controlling the heat exchanger and the at least two-stage electric heating devices based on the detection results of the temperature detection component, so that the heat exchanger outlet air temperature T2 reaches the target outlet air temperature T2 of the heat exchanger. 目标 The non-final stage electric heating outlet air temperature Tn reaches the non-final stage electric heating target outlet air temperature Tn 目标The air outlet temperature T1 of the air duct reaches the target air outlet temperature T1. 目标 .

[0012] Preferably, the above-mentioned environmental control equipment further includes a humidification and dehumidification device, which includes a humidification unit and a dehumidification unit;

[0013] The humidification unit includes:

[0014] A steam generator, which has an internal heater for heating water into steam;

[0015] Water pipes are used to supply water to the steam generator;

[0016] A steam outlet pipe is used to draw steam generated by the steam generator to the air inlet side of the fan using negative pressure;

[0017] The dehumidification unit includes:

[0018] A compressor is used to compress refrigerant from a low-temperature, low-pressure gaseous state to a high-temperature, high-pressure gaseous state and drive the flow of refrigerant.

[0019] A condenser is used to dissipate heat by changing the refrigerant from a high-temperature, high-pressure gaseous state to a normal-temperature, high-pressure liquid state;

[0020] A throttling valve is used to reduce the pressure of refrigerant from a normal temperature, high pressure liquid state to a low temperature, low pressure gas-liquid mixture state.

[0021] The evaporator is used to absorb heat to change the refrigerant from a low-temperature, low-pressure gas-liquid mixture to a low-temperature, low-pressure gas, and to lower the air temperature so that water vapor in the air condenses into condensate. The heat absorption chamber of the evaporator is connected to the air duct. After the refrigerant is output from the compressor, it flows through the condenser, the expansion valve, and the evaporator in sequence before being delivered back to the compressor.

[0022] A drainage structure for draining condensate is provided below the evaporator.

[0023] Preferably, in the above-mentioned environmental control equipment, the air duct extends vertically and has an air inlet at the bottom and an air outlet at the top, and the cabinet is provided with a partition for dividing the inner cavity into the air duct and the electrical control cavity;

[0024] The environmental control equipment includes an electrical control system for controlling the fan, the humidification and dehumidification device, the heat exchanger, and the at least two-stage electric heating device;

[0025] The electrical control system, the humidification and dehumidification device, and the pipeline assembly for supplying water to the heat exchanger are arranged sequentially from top to bottom within the electrical control cavity.

[0026] Preferably, in the above-mentioned environmental control equipment, the cabinet includes a cabinet frame, a side panel detachably mounted on the cabinet frame, and a cabinet door for opening and closing the electrical control cavity;

[0027] The side panel and the partition are sealed together to form the air duct;

[0028] The side panel includes an inner panel and an outer panel. The inner wall of the inner panel and the side of the partition near the air duct are both provided with first sound-absorbing cotton.

[0029] Preferably, the above-mentioned environmental control equipment further includes a flow equalization packing layer for improving the temperature uniformity of the outlet airflow. The flow equalization packing layer includes multiple flow equalization holes formed by splicing multiple layers of bent steel sheets. The bent steel sheets are spaced out with multiple depressions or protrusions. The flow equalization packing layer is disposed at the air outlet of the air duct.

[0030] Preferably, in the above-mentioned environmental control equipment, the at least two-stage electric heating device includes at least a primary electric heating device, a secondary electric heating device, and a tertiary electric heating device, wherein the heat exchanger, the primary electric heating device, the fan, the secondary electric heating device, and the tertiary electric heating device are sequentially arranged in the air duct along the flow direction of the airflow;

[0031] The temperature detection component includes:

[0032] A first temperature sensor is used to detect the air outlet temperature T1 of the duct at the outlet of the three-stage electric heating device. The first temperature sensor is located at the air outlet of the duct.

[0033] A second temperature sensor is used to detect the heat exchanger outlet air temperature T2 at the heat exchanger outlet, and the second temperature sensor is installed on the heat exchanger outlet side.

[0034] A third temperature sensor is used to detect the primary electric heating outlet air temperature T3 at the outlet of the primary electric heating device. The third temperature sensor is installed at the air outlet of the fan.

[0035] A fourth temperature sensor is used to detect the secondary electric heating outlet air temperature T4 at the outlet of the secondary electric heating device. The fourth temperature sensor is installed on the outlet side of the secondary electric heating device.

[0036] Wherein, the non-final stage electric heating outlet temperature Tn includes the first stage electric heating outlet temperature T3 and the second stage electric heating outlet temperature T4;

[0037] The environmental control equipment also includes a first guide plate and a second guide plate for reducing wind resistance. Both of them are at an angle to the airflow direction and are respectively disposed on two opposite side walls of the air duct. The first guide plate is located between the fan and the secondary electric heating device, and the second guide plate is located between the secondary electric heating device and the tertiary electric heating device.

[0038] Preferably, in the above-mentioned environmental control equipment, a group of the heat exchanger, the primary electric heating device, the fan, the secondary electric heating device and the tertiary electric heating device are integrated into a temperature control module, and two temperature control modules are arranged side by side in the air duct along the direction perpendicular to the airflow.

[0039] The heat exchanger is V-shaped with its opening facing the fan; the primary electric heating device is located inside the opening of the heat exchanger.

[0040] Preferably, the above-mentioned environmental control equipment further includes:

[0041] A return air silencer connected to the air inlet of the air duct, the return air silencer having a return air inlet for the airflow of the control area to flow back to the air duct;

[0042] An air outlet silencer connected to the air outlet of the air duct, the air outlet silencer having an air outlet for the airflow of the air duct to flow to the control area.

[0043] Preferably, in the above-mentioned environmental control equipment, the bottom of the cabinet is supported by a shock-absorbing base, each of the support feet of the shock-absorbing base is equipped with a shock absorber, and the shock-absorbing base is provided with clearance installation space for the return air silencer to pass through.

[0044] Preferably, in the above-mentioned environmental control equipment, both the return air silencer and the outlet air silencer are made of sound-absorbing cotton.

[0045] As can be seen from the above technical solution, the environmental control equipment provided in this application includes a cabinet, an air duct for airflow, the air duct having an air inlet for airflow into the control area and an air outlet for airflow from the air duct to the control area; a fan for driving the airflow, the fan being installed inside the air duct; and a device for coordinating and controlling the airflow temperature inside the air duct to ensure that the airflow temperature reaches the target airflow temperature T1. 目标The system includes a heat exchanger and at least two stages of electric heating devices, which are sequentially arranged within a duct along the airflow direction. A temperature detection assembly is used to detect the heat exchanger outlet air temperature T2, the non-final stage electric heating outlet air temperature Tn of the at least two stages of electric heating devices, and the duct outlet air temperature T1 of the final stage electric heating device. A controller is configured to control the heat exchanger and at least two stages of electric heating devices based on the detection results from the temperature detection assembly, so that the heat exchanger outlet air temperature T2 reaches the target outlet air temperature T2. 目标 The outlet air temperature Tn of the non-final stage electric heating reaches the target outlet air temperature Tn of the non-final stage electric heating. 目标 The air outlet temperature T1 in the air duct reaches the target air outlet temperature T1. 目标 .

[0046] It should be noted that the final stage electric heating device of at least two stages of electric heating devices is the stage electric heating device that the airflow enters last along the airflow direction, that is, the stage electric heating device that is closest to the air outlet of the air duct; non-final stage electric heating devices are the other stages of electric heating devices in at least two stages of electric heating devices other than the final stage electric heating device.

[0047] When the environmental control equipment is working, driven by the fan, the airflow in the control area enters the air duct of the cabinet from the air inlet of the air duct. After the initial temperature control by the heat exchanger, it passes through at least two stages of electric heating devices for intermediate temperature control and final precise temperature control. The airflow that meets the set requirements is output from the air outlet of the air duct and flows into the control area, and then back to the air inlet of the air duct. This cycle repeats to maintain the environmental parameters of the control area within the set range.

[0048] During temperature control, the heat exchanger outlet air temperature T2, the non-final stage electric heating air temperature Tn, and the duct outlet air temperature T1 of the final stage electric heating device are detected using temperature detection components. Driven by the fan, the airflow in the duct is first controlled by the controller based on the heat exchanger outlet air temperature T2 to bring the outlet air temperature of the heat exchanger to the target outlet air temperature T2. 目标 Then, the controller controls the non-final stage electric heating device (which has at least two stages of electric heating) based on the non-final stage electric heating outlet air temperature Tn, to heat the outlet airflow temperature of the non-final stage electric heating device to the target outlet air temperature Tn. 目标 The controller then controls the final stage electric heating device of at least two stages of electric heating devices based on the air outlet temperature T1, to heat the air outlet temperature of the final stage electric heating device to the target air outlet temperature T1. 目标 This allows for step-by-step temperature control of the airflow within the duct through a heat exchanger and at least two stages of electric heating devices, achieving precise temperature control.

[0049] In summary, the fan of the environmental control equipment provided in this application can adjust the air volume, thereby achieving air volume adjustment by controlling the fan. This satisfies both high and low air volume requirements. Simultaneously, by coordinating the heat exchanger and at least two stages of electric heating devices to adjust the airflow temperature within the duct, it can precisely control the temperature of the airflow exiting the duct, meeting the environmental requirements for different temperatures. Therefore, this environmental control equipment can output precisely temperature-controlled airflow by adjusting the fan and / or heat exchanger and at least two stages of electric heating devices according to different environmental control requirements, thus meeting the airflow and temperature requirements of precise temperature control environments. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0051] Figure 1 A three-dimensional structural diagram of the environmental control equipment provided in one direction according to an embodiment of this application;

[0052] Figure 2 A three-dimensional structural diagram of the environmental control equipment provided in an embodiment of this application from another direction;

[0053] Figure 3 This is a schematic diagram illustrating the use of the environmental control equipment provided in the embodiments of this application;

[0054] Figure 4 This is a right-side view of the environmental control equipment provided in an embodiment of this application.

[0055] Figure 5 This is a schematic diagram of the left-side structure of the environmental control device provided in the embodiments of this application.

[0056] superior Figure 1-5 middle:

[0057] 1-Return air silencer, 2-Pipeline assembly, 3-Humidification and dehumidification device, 4-Electrical control system, 5-Outlet air silencer, 6-Side panel, 7-Three-stage electric heating device, 8-Two-stage electric heating device, 9-Fan, 10-First-stage electric heating device, 11-Heat exchanger, 12-Vibration damping base, 13-Vibration damper, 14-First guide plate, 15-Flow equalization packing layer, 16-Second guide plate, 17-First sound-absorbing cotton, A-Control area. Detailed Implementation

[0058] This application provides an environmental control device that can output airflow with precise temperature control, thereby meeting the requirements of precise temperature control environments for airflow and temperature.

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] like Figures 1-5 As shown, the environmental control equipment provided in this embodiment includes a cabinet with an air duct for airflow. The air duct has an air inlet for airflow into the control area A and an air outlet for airflow from the air duct to the control area A. A fan 9 is installed inside the air duct to drive the airflow. The fan is also used to control the airflow temperature within the air duct so that the outlet temperature reaches the target outlet temperature T1. 目标 The system includes a heat exchanger 11 and at least two stages of electric heating devices, which are sequentially arranged in the duct along the airflow direction. A temperature detection assembly is used to detect the heat exchanger outlet air temperature T2 at the outlet of heat exchanger 11, the non-final stage electric heating outlet air temperature Tn at the outlet of the non-final stage electric heating devices of the at least two stages of electric heating devices, and the duct outlet air temperature T1 at the outlet of the final stage electric heating device. A controller is used to control the heat exchanger 11 and the at least two stages of electric heating devices based on the detection results of the temperature detection assembly, so that the heat exchanger outlet air temperature T2 reaches the target outlet air temperature T2 of the heat exchanger. 目标 The outlet air temperature Tn of the non-final stage electric heating reaches the target outlet air temperature Tn of the non-final stage electric heating. 目标 The air outlet temperature T1 in the air duct reaches the target air outlet temperature T1. 目标 .

[0061] It should be noted that control area A is used to store or receive the airflow output from the environmental control equipment in order to meet the testing environment requirements of the specific equipment in control area A.

[0062] The final stage electric heating device of at least two stages of electric heating devices is the electric heating device that the airflow enters last along the airflow direction, that is, the electric heating device that is closest to the air outlet of the air duct; the non-final stage electric heating devices are the electric heating devices of at least two stages of electric heating devices other than the final stage electric heating device.

[0063] Target outlet air temperature T1 目标 The required outlet air temperature for precise temperature control environments used in environmental control equipment; the target outlet air temperature T2 of the heat exchanger. 目标 Target outlet air temperature Tn for non-final stage electric heating 目标 Based on the target outlet air temperature T1 目标The settings can also be set together with the air inlet temperature of the air duct. At this time, the temperature detection component will also detect the air inlet temperature of the air duct as needed.

[0064] There are no restrictions on the direction of external connection when using environmental control equipment. The following example illustrates one such method. Figure 3 The connection shown indicates that the airflow direction is as follows: Figure 4 As indicated by the middle arrow:

[0065] When the environmental control equipment is working, driven by the fan 9, the airflow in the control area A returns from the air inlet of the air duct to the air duct of the cabinet. After the initial temperature control by the heat exchanger 11, it passes through at least two stages of electric heating devices for intermediate temperature control and final precise temperature control. The airflow that meets the set requirements is output from the air outlet of the air duct and flows into the control area A, and then sent back to the air inlet of the air duct. This cycle repeats to maintain the environmental parameters of the control area A within the set range.

[0066] During temperature control, the temperature detection components detect the heat exchanger outlet air temperature T2 at the outlet of heat exchanger 11, the non-final stage electric heating outlet air temperature Tn at the outlet of at least two stages of electric heating devices, and the duct outlet air temperature T1 at the outlet of the final stage electric heating device. Driven by the fan 9, the airflow in the duct is first controlled by the controller based on the heat exchanger outlet air temperature T2 to bring the outlet air temperature of heat exchanger 11 to the target outlet air temperature T2. 目标 Then, the controller controls the non-final stage electric heating device (which has at least two stages of electric heating) based on the non-final stage electric heating outlet air temperature Tn, to heat the outlet airflow temperature of the non-final stage electric heating device to the target outlet air temperature Tn. 目标 The controller then controls the final stage electric heating device of at least two stages of electric heating devices based on the air outlet temperature T1, to heat the air outlet temperature of the final stage electric heating device to the target air outlet temperature T1. 目标 In this way, the airflow in the duct is temperature controlled step by step through the heat exchanger 11 and at least two stages of electric heating devices to achieve precise temperature control.

[0067] In summary, the fan 9 of the environmental control equipment provided in this application can adjust the air volume. By controlling the fan 9, the air volume can be adjusted to meet both large and small air volume requirements. At the same time, by cooperating with the heat exchanger 11 and at least two stages of electric heating devices to adjust the airflow temperature in the duct, the airflow exiting the duct can be precisely temperature-controlled to meet the environmental requirements of different temperatures. Therefore, this environmental control equipment can output a precise air volume according to different environmental control requirements by adjusting the fan 9 and / or the heat exchanger 11 and at least two stages of electric heating devices, thereby meeting the requirements of precise temperature control environment for air volume and temperature.

[0068] In addition, the environmental control equipment has high environmental control accuracy and can meet the testing conditions for ultra-high precision requirements of multiple environmental control systems.

[0069] Specifically, the heat exchanger 11 cools the airflow in the duct, thereby reducing the airflow temperature and increasing the distance between the airflow temperature and the target outlet air temperature T1. 目标 The temperature difference between them facilitates the temperature control of at least two stages of the subsequent at least two-stage electric heating device. The at least two-stage electric heating device controls the airflow temperature from the target outlet air temperature T2 of the heat exchanger. 目标 Heating to the target outlet air temperature T1 step by step 目标 Furthermore, the temperature difference ΔT between each heating stage decreases progressively along the airflow direction, gradually improving temperature control accuracy, and finally precisely controlling the temperature to the target outlet air temperature T1. 目标 .

[0070] To further meet different environmental requirements, the environmental control equipment also includes a humidification and dehumidification device 3, which comprises a humidification unit and a dehumidification unit. The humidification unit includes a steam generator with an internal heater for heating water into steam; a water pipe for supplying water to the steam generator; and a steam outlet pipe that uses negative pressure to draw the steam generated by the steam generator to the air inlet side of the fan 9. The dehumidification unit includes a compressor for compressing the refrigerant from a low-temperature, low-pressure gaseous state to a high-temperature, high-pressure gaseous state and driving the refrigerant flow; and a condenser for heat dissipation. The refrigerant changes from a high-temperature, high-pressure gaseous state to a normal-temperature, high-pressure liquid state; the expansion valve is used to reduce the pressure of the refrigerant from a normal-temperature, high-pressure liquid state to a low-temperature, low-pressure gas-liquid mixture state; the evaporator is used to absorb heat to change the refrigerant from a low-temperature, low-pressure gas-liquid mixture state to a low-temperature, low-pressure gaseous state, and to lower the air temperature so that water vapor in the air condenses into condensate. The heat absorption chamber of the evaporator is connected to the air duct. After the refrigerant is output from the compressor, it flows through the condenser, expansion valve, and evaporator in sequence before being delivered back to the compressor; a drainage structure is used to discharge the condensate, and the drainage structure is located below the evaporator.

[0071] The environmental control equipment in this embodiment integrates large air volume, low noise, temperature and humidity control; the humidification unit of the humidification and dehumidification device 3 can humidify the airflow in the air duct and increase the airflow humidity; the dehumidification unit can dehumidify the airflow in the air duct and reduce the airflow humidity, thereby meeting the environmental requirements of different humidity levels and further expanding the application range.

[0072] When the humidification unit is working, water is supplied to the steam generator through a water pipe. The water can be pure water or tap water. At the same time, the steam generator heats the water into steam through a heater. The steam generated by the steam generator is led out to the air inlet side of the fan 9 through the steam outlet pipe using the negative pressure driven by the fan 9. This allows the steam to flow and mix with the airflow, thus achieving airflow humidification.

[0073] When the dehumidification unit is working, the compressor extracts the low-temperature, low-pressure gaseous refrigerant from the evaporator and compresses it into a high-temperature, high-pressure gaseous state. Then, the refrigerant enters the condenser to dissipate heat and changes from a high-temperature, high-pressure gaseous state to a normal-temperature, high-pressure liquid state. Next, the refrigerant flows through the expansion valve and decreases in pressure from a normal-temperature, high-pressure liquid state to a low-temperature, low-pressure gas-liquid mixture state, i.e., a two-phase state. Finally, the refrigerant enters the evaporator to absorb heat and changes from a low-temperature, low-pressure gas-liquid mixture state to a low-temperature, low-pressure gaseous state. At this time, the evaporator lowers the temperature of the airflow entering its heat absorption chamber from the air duct. The water vapor in the airflow condenses into condensate, which is then discharged through the drainage structure, thus achieving airflow dehumidification.

[0074] In addition, the air intake and supply of the humidification and dehumidification device 3 of this application are both inside the cabinet, which can ensure the cleanliness of the ambient air and improve the service life of the high-efficiency filter.

[0075] To reduce the installation space of the environmental control equipment, the air duct extends vertically and has an air inlet at the bottom and an air outlet at the top. The cabinet is equipped with a partition to divide the inner cavity into the air duct and the electrical control cavity. The environmental control equipment includes an electrical control system 4 for controlling the fan 9, the humidification and dehumidification device 3, the heat exchanger 11 and at least two stages of electric heating devices. The electrical control system 4, the humidification and dehumidification device 3 and the piping assembly 2 for supplying water to the heat exchanger 11 are arranged sequentially from top to bottom in the electrical control cavity.

[0076] like Figure 1-2 As shown, the cabinet is arranged vertically, with a partition on the side creating an electrical control cavity. The electrical control system 4, humidification / dehumidification device 3, and piping assembly 2 are arranged sequentially from top to bottom within the electrical control cavity, resulting in a more compact and rational layout, thus reducing the cabinet's size. Furthermore, each of the electrical control system 4, humidification / dehumidification device 3, and piping assembly 2 forms a module, facilitating modularity and easy disassembly and maintenance. Of course, depending on the actual application scenario, the cabinet can also adopt other forms, such as horizontal, or partially vertical and partially horizontal. This application does not specifically limit the cabinet's arrangement, as long as its functionality is achieved.

[0077] Understandably, in order to ensure the normal operation of the humidification and dehumidification device 3, a connecting hole is provided on the partition plate to connect the ventilation duct and the heat absorption chamber of the dehumidification unit.

[0078] The electronic control system 4, in conjunction with sensors, valves, and other components, automatically controls airflow, temperature, and humidity parameters. Specifically, the piping assembly 2 is equipped with a heater, a water flow regulating valve, and a temperature sensor. The electronic control system 4 controls the water flow and temperature to prevent excessive temperature fluctuations and to adjust and stabilize the water temperature within the heat exchanger 11 within the target range.

[0079] Humidity and temperature sensors are installed at appropriate locations within the air duct, and wind speed sensors are installed at the air outlet. The electrical control system 4 controls the operation of the humidification and dehumidification device 3, the heat exchanger 11, and at least two stages of electric heating devices and the fan 9 based on the detection signals from the above sensors, thereby enabling it to meet different environmental requirements with high precision.

[0080] like Figure 2 As shown, in a specific embodiment, the cabinet includes a frame, a side panel 6 detachably mounted on the frame, and a door for opening and closing the electrical control cavity. In this embodiment, opening the door exposes the components inside the electrical control cavity, facilitating inspection and maintenance. Specifically, the side panel 6 is detachable via a threaded structure.

[0081] The detachable side panel 6 and the openable cabinet door in this embodiment allow for maintenance and repair from all four sides of the cabinet, enabling multi-angle placement and maintenance. This better accommodates on-site installation conditions, greatly improves the versatility of the equipment, and ensures normal equipment maintenance.

[0082] The side panel 6 and the partition are sealed together to form an air duct; the side panel 6 includes an inner panel and an outer panel, and the inner wall of the inner panel and the side of the partition near the air duct are provided with first sound-absorbing cotton 17.

[0083] This embodiment improves the airtightness of the air duct by using two layers of side panels 6, which further improves the air cleanliness. Moreover, this embodiment reduces noise and optimizes the noise reduction effect by providing the first sound-absorbing cotton 17 on the inner wall of the inner panel and on the side of the partition near the air duct, so that the air duct is surrounded by the first sound-absorbing cotton 17.

[0084] To further optimize the above technical solution, the environmental control equipment also includes a flow equalization packing layer 15 for improving the temperature uniformity of the outlet airflow. The flow equalization packing layer 15 includes multiple flow equalization holes formed by splicing multiple layers of bent steel sheets. The bent steel sheets are spaced out with multiple depressions or protrusions. The flow equalization packing layer 15 is located at the air outlet of the duct. Figure 5 As shown. After the airflow is precisely temperature-controlled by the last-stage electric heating device 10, it flows out of the air duct through multiple flow equalization holes in the flow equalization packing layer 15. The flow equalization holes are non-circular and are made of multiple layers of bent steel sheets spliced ​​together. The hole walls are filled with multiple depressions or protrusions at intervals, which can improve the uniformity of the airflow temperature and further improve the temperature control accuracy.

[0085] In addition, the uniform flow packing layer 15 used in this application is composed of multiple layers of bent steel sheets spliced ​​together, which does not shed lint and has high cleanliness and service life.

[0086] In a preferred embodiment, the at least two-stage electric heating device includes at least a primary electric heating device 10, a secondary electric heating device 8, and a tertiary electric heating device 7. The heat exchanger 11, the primary electric heating device 10, the fan 9, the secondary electric heating device 8, and the tertiary electric heating device 7 are sequentially arranged within the air duct along the airflow direction. This embodiment employs a three-stage heating system to achieve precise temperature control.

[0087] The temperature detection assembly includes a first temperature sensor for detecting the duct outlet air temperature T1 at the outlet of the three-stage electric heating device 7, the first temperature sensor being located at the air outlet of the duct; a second temperature sensor for detecting the heat exchanger outlet air temperature T2 at the outlet of the heat exchanger 11, the second temperature sensor being located on the air outlet side of the heat exchanger 11; a third temperature sensor for detecting the primary electric heating outlet air temperature T3 at the outlet of the primary electric heating device 10, the third temperature sensor being located at the air outlet of the fan 9; and a fourth temperature sensor for detecting the secondary electric heating outlet air temperature T4 at the outlet of the secondary electric heating device 8, the fourth temperature sensor being located on the air outlet side of the secondary electric heating device 8; wherein, the non-final stage electric heating outlet air temperature Tn includes the primary electric heating outlet air temperature T3 and the secondary electric heating outlet air temperature T4.

[0088] During operation, the environmental control equipment returns air from the air inlet of the air duct, which is initially controlled by the heat exchanger 11, then heated and controlled by the primary electric heating device 10, and then drawn in by the fan 9. After passing through the fan 9, the air is sent to the secondary electric heating device 8 for further heating and temperature control, and then to the tertiary electric heating device 7 for final precise temperature control before being sent back to the air inlet of the air duct, and so on.

[0089] During the temperature control process, driven by the fan 9, the airflow in the duct is first controlled by the controller based on the heat exchanger outlet air temperature T2 detected by the second temperature sensor, so that the outlet airflow temperature of the heat exchanger 11 reaches the target outlet air temperature T2 of the heat exchanger. 目标 Next, the controller, based on the primary electric heating outlet air temperature T3 detected by the third temperature sensor, controls the primary electric heating device 10 to heat the outlet airflow temperature to the target primary electric heating outlet air temperature T3. 目标 Then, based on the secondary electric heating outlet air temperature T4 detected by the fourth temperature sensor, the controller controls the secondary electric heating device 8 to heat the outlet airflow temperature to the target secondary electric heating outlet air temperature T4. 目标 Finally, the controller controls the three-stage electric heating device 7 based on the air outlet temperature T1 detected by the first temperature sensor, to heat the outlet airflow temperature of the three-stage electric heating device 7 to the target outlet air temperature T1. 目标 In this way, the airflow in the duct is temperature controlled step by step through the heat exchanger 11 and the three-stage electric heating device to achieve precise temperature control.

[0090] One of the electric heating devices in this application can be controlled to shut down according to actual conditions, serving as a backup / reserved heating device. Specifically, the electric heating device uses an electric heating wire, but other devices that achieve heating via electricity can also be used.

[0091] Furthermore, the environmental control equipment also includes a first guide plate 14 and a second guide plate 16 for reducing air resistance. Both are angled to the airflow direction and are respectively disposed on two opposite side walls of the air duct. The first guide plate 14 is located between the fan 9 and the secondary electric heating device 8, and the second guide plate 16 is located between the secondary electric heating device 8 and the tertiary electric heating device 7. In this embodiment, the first guide plate 14 and the second guide plate 16 are spaced apart and staggered on both sides of the air inlet and outlet of the secondary electric heating device 8, which not only reduces air resistance but also reduces the generation of regenerated noise. Combined with sound-absorbing cotton, the noise reduction effect is even better.

[0092] The first guide plate 14 and the second guide plate 16 have inclined guide surfaces relative to the airflow direction, which can better mix the airflow and improve the temperature control effect.

[0093] In the environmental control equipment provided in the above embodiments, a set of heat exchangers 11, primary electric heating devices 10, fans 9, secondary electric heating devices 8, and tertiary electric heating devices 7 are integrated into a temperature control module. Two temperature control modules are arranged side-by-side in the air duct along a direction perpendicular to the airflow direction; for example... Figure 1 As shown, two temperature control modules are arranged side by side, which improves the modularity of the environmental control equipment and facilitates assembly and maintenance. Simultaneously, the two fans 9 of the two temperature control modules work together to provide airflow, with a wide adjustable range, further enhancing versatility.

[0094] Furthermore, the heat exchanger 11 is V-shaped with its opening facing the fan 9; the primary electric heating device 10 is disposed within the opening of the heat exchanger 11. The heat exchanger 11 includes two rows of heat exchange tubes arranged in a V-shape. In this application, the primary electric heating device 10 is placed within the opening of the heat exchanger 11, eliminating the need for the primary electric heating device 10 to occupy separate space, thus further reducing the space required.

[0095] In the preferred technical solution, the environmental control equipment also includes a return air silencer 1 connected to the air inlet of the air duct, the return air silencer 1 having a return air inlet for the airflow of the control area A to return to the air duct; and an outlet air silencer 5 connected to the air outlet of the air duct, the outlet air silencer 5 having an outlet for the airflow of the air duct to flow to the control area A.

[0096] When the environmental control equipment in this embodiment is working, driven by the fan 9, the airflow in the control area A returns from the return air inlet of the return air silencer 1 into the air duct of the cabinet. After the heat exchanger 11 performs initial temperature control, it then passes through at least two stages of electric heating devices for intermediate temperature control and final precise temperature control. The airflow flows from the air duct into the outlet silencer 5, and after noise reduction treatment, the airflow that meets the set requirements is output from the outlet of the outlet silencer 5 and flows into the control area A. Then it is sent back to the return air inlet of the return air silencer 1. This cycle repeats to maintain the environmental parameters of the control area A within the set range.

[0097] The environmental control equipment provided in this embodiment adjusts the air volume by controlling the fan 9, which can meet both large and small air volume requirements. At the same time, when the air volume is large, noise reduction is achieved through the return air silencer 1 and the outlet air silencer 5, which can meet the low noise requirements. Moreover, through the cooperation of the heat exchanger 11 and at least two stages of electric heating devices, the airflow from the duct can be precisely temperature controlled, which can meet the environmental requirements of different temperatures. Therefore, this environmental control equipment can take into account a wider range of different environmental requirements, further expanding its application scope and improving its versatility.

[0098] The return air silencer 1 in the environmental control equipment is mainly used to reduce the backflow of noise from the fan 9 to the control area A. When used in conjunction with the outlet air silencer 5, it can achieve a better noise reduction effect.

[0099] The return air silencer 1 and the outlet air silencer 5 are respectively installed at both ends of the cabinet air duct through flange sealing. The installation direction of the silencers can be adjusted by disassembly and assembly, and a suitable installation direction can be selected according to the actual application environment.

[0100] The adjustable silencer in this embodiment, combined with the detachable side panel 6 and the openable cabinet door, allows for placement and maintenance at multiple angles, further improving the versatility of the equipment.

[0101] The return air silencer 1 and the outlet air silencer 5, together with the first sound-absorbing cotton 17 surrounding the air duct, further optimize the noise reduction effect.

[0102] The environmental control equipment fan 9 will vibrate. To meet the vibration level requirements of the operating environment, the bottom of the cabinet is supported by a vibration damping base 12. Each support leg of the vibration damping base 12 is equipped with a vibration damper 13, and the vibration damping base 12 is provided with clearance for the return air silencer 1 to pass through. Figure 1-5 As shown. The shock absorber 13 can not only reduce the transmission of vibration noise, but also meet the vibration level of the operating environment.

[0103] Specifically, the shock absorber 13 cleverly integrates a rubber assembly and a hydraulic damping assembly, allowing for precise tuning between the two components to meet the unique requirements of vibration isolation and motion control. The hydraulic fluid within the hydraulic damping support flows freely with the movement of the rubber assembly, generating a dynamic response, thereby dissipating energy, effectively reducing vibration, and ensuring precise motion control.

[0104] To further optimize the above technical solution, both the return air silencer 1 and the outlet air silencer 5 employ sound-absorbing cotton for noise reduction. The return air silencer 1 and the outlet air silencer 5 of this application utilize sound-absorbing cotton for noise reduction, minimizing particle generation and further ensuring cleanliness. Specifically, the sound-absorbing cotton uses melamine, polyurethane, and other sound-absorbing materials, achieving highly efficient sound absorption. Of course, the return air silencer 1 and the outlet air silencer 5 can also employ other sound-absorbing structures, such as rubber sound insulation pads, polyester fibers, etc.

[0105] Therefore, this application provides an environmental control device that integrates low noise, wind pressure, temperature and humidity control. It is small in size, has high environmental control precision, is highly modular, and has diverse maintenance capabilities, making it suitable for various environmental requirements.

[0106] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0107] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0108] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0109] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0110] It should be understood that the qualifiers “first,” “second,” “third,” “fourth,” “fifth,” and “sixth” used in the description of the embodiments of this application are only used to more clearly illustrate the technical solutions and are not intended to limit the scope of protection of this application.

[0111] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. An environmental control device, characterized in that, include: The cabinet is equipped with an air duct through which airflow passes. The air duct has an air inlet for airflow into the control area and an air outlet for airflow from the air duct to the control area. A fan for driving airflow, the fan being disposed within the air duct; Used to control the airflow temperature within the duct so that the outlet air temperature of the duct reaches the target outlet air temperature T1. 目标 The heat exchanger and at least two electric heating devices are arranged sequentially in the air duct along the flow direction of the airflow. A temperature detection component is used to detect the heat exchanger outlet air temperature T2 at the heat exchanger outlet, the non-final stage electric heating outlet air temperature Tn at the outlet of the non-final stage electric heating device of the at least two-stage electric heating device, and the duct outlet air temperature T1 at the outlet of the final stage electric heating device. The controller is capable of controlling the heat exchanger and the at least two-stage electric heating devices based on the detection results of the temperature detection component, so that the heat exchanger outlet air temperature T2 reaches the target outlet air temperature T2 of the heat exchanger. 目标 The non-final stage electric heating outlet air temperature Tn reaches the non-final stage electric heating target outlet air temperature Tn 目标 The air outlet temperature T1 of the air duct reaches the target air outlet temperature T1. 目标 .

2. The environmental control equipment according to claim 1, characterized in that, It also includes a humidification and dehumidification device, which includes a humidification unit and a dehumidification unit; The humidification unit includes: A steam generator, which has an internal heater for heating water into steam; Water pipes are used to supply water to the steam generator; A steam outlet pipe is used to draw steam generated by the steam generator to the air inlet side of the fan using negative pressure; The dehumidification unit includes: A compressor is used to compress refrigerant from a low-temperature, low-pressure gaseous state to a high-temperature, high-pressure gaseous state and drive the flow of refrigerant. A condenser is used to dissipate heat by changing the refrigerant from a high-temperature, high-pressure gaseous state to a normal-temperature, high-pressure liquid state; A throttling valve is used to reduce the pressure of refrigerant from a normal temperature, high pressure liquid state to a low temperature, low pressure gas-liquid mixture state. The evaporator is used to absorb heat to change the refrigerant from a low-temperature, low-pressure gas-liquid mixture to a low-temperature, low-pressure gas, and to lower the air temperature so that water vapor in the air condenses into condensate. The heat absorption chamber of the evaporator is connected to the air duct. After the refrigerant is output from the compressor, it flows through the condenser, the expansion valve, and the evaporator in sequence before being delivered back to the compressor. A drainage structure for draining condensate is provided below the evaporator.

3. The environmental control equipment according to claim 2, characterized in that, The air duct extends vertically and has an air inlet at the bottom and an air outlet at the top. The cabinet is equipped with a partition to divide the inner cavity into the air duct and the electrical control cavity. The environmental control equipment includes an electrical control system for controlling the fan, the humidification and dehumidification device, the heat exchanger, and the at least two-stage electric heating device; The electrical control system, the humidification and dehumidification device, and the pipeline assembly for supplying water to the heat exchanger are arranged sequentially from top to bottom within the electrical control cavity.

4. The environmental control equipment according to claim 3, characterized in that, The cabinet includes a frame, a side panel detachably mounted on the frame, and a door for opening and closing the electrical control cavity; The side panel and the partition are sealed together to form the air duct; The side panel includes an inner panel and an outer panel. The inner wall of the inner panel and the side of the partition near the air duct are both provided with first sound-absorbing cotton.

5. The environmental control equipment according to claim 1, characterized in that, It also includes a flow equalization packing layer for improving the temperature uniformity of the outlet airflow. The flow equalization packing layer includes multiple flow equalization holes formed by splicing multiple layers of bent steel sheets. The bent steel sheets are spaced out with multiple depressions or protrusions. The flow equalization packing layer is disposed at the air outlet of the air duct.

6. The environmental control equipment according to claim 1, characterized in that, The at least two-stage electric heating device includes at least a primary electric heating device, a secondary electric heating device, and a tertiary electric heating device, wherein the heat exchanger, the primary electric heating device, the fan, the secondary electric heating device, and the tertiary electric heating device are sequentially arranged in the air duct along the flow direction of the airflow; The temperature detection component includes: A first temperature sensor is used to detect the air outlet temperature T1 of the duct at the outlet of the three-stage electric heating device. The first temperature sensor is located at the air outlet of the duct. A second temperature sensor is used to detect the heat exchanger outlet air temperature T2 at the heat exchanger outlet, and the second temperature sensor is installed on the heat exchanger outlet side. A third temperature sensor is used to detect the primary electric heating outlet air temperature T3 at the outlet of the primary electric heating device. The third temperature sensor is installed at the air outlet of the fan. A fourth temperature sensor is used to detect the secondary electric heating outlet air temperature T4 at the outlet of the secondary electric heating device. The fourth temperature sensor is installed on the outlet side of the secondary electric heating device. Wherein, the non-final stage electric heating outlet temperature Tn includes the first stage electric heating outlet temperature T3 and the second stage electric heating outlet temperature T4; The environmental control equipment also includes a first guide plate and a second guide plate for reducing wind resistance. Both of them are at an angle to the airflow direction and are respectively disposed on two opposite side walls of the air duct. The first guide plate is located between the fan and the secondary electric heating device, and the second guide plate is located between the secondary electric heating device and the tertiary electric heating device.

7. The environmental control equipment according to claim 6, characterized in that, A set of the heat exchanger, the primary electric heating device, the fan, the secondary electric heating device and the tertiary electric heating device are integrated into a temperature control module, and two temperature control modules are arranged side by side in the air duct along the direction perpendicular to the airflow. The heat exchanger is V-shaped with its opening facing the fan; the primary electric heating device is located inside the opening of the heat exchanger.

8. The environmental control equipment according to any one of claims 1-7, characterized in that, Also includes: A return air silencer connected to the air inlet of the air duct, the return air silencer having a return air inlet for the airflow of the control area to flow back to the air duct; An air outlet silencer connected to the air outlet of the air duct, the air outlet silencer having an air outlet for the airflow of the air duct to flow to the control area.

9. The environmental control equipment according to claim 8, characterized in that, The bottom of the cabinet is supported by a shock-absorbing base, and each support foot of the shock-absorbing base is equipped with a shock absorber. The shock-absorbing base is also provided with clearance for the return air silencer to pass through.

10. The environmental control equipment according to claim 8, characterized in that, Both the return air silencer and the outlet air silencer use sound-absorbing cotton for sound reduction.

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