Energy-saving regulation and control device of process air conditioner

Abstract

The utility model discloses an energy-saving regulation and control device of a process air conditioner, and relates to the technical field of air conditioner energy conservation, the energy-saving regulation and control device comprises a controller, an air supply pipeline, two connecting valves and the process air conditioner, the two connecting valves and the process air conditioner are additionally arranged on the air supply pipeline, and the two connecting valves are arranged at the front end and the rear end of the process air conditioner respectively and are of a three-way valve structure; a residual air bypass complementary air return pipeline is further arranged between the two connecting valves, a temperature probe and a humidity probe are integrated in each connecting valve, and an electrically-driven valve opening adjusting part is further arranged in each valve. The opening degree of the connecting valve is precisely regulated and controlled through a controller and a lead screw structure; the lead screw structure is isolated from a gas channel in the valve through the isolation pipe, and the opening degree of the connecting valve is changed through the magnetic attraction force between the magnetic sliding ring and the annular block block. By arranging the hand valve, the temperature probe and the humidity probe can be replaced in real time under the operation condition of the process air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning energy saving, and in particular to an energy-saving control device for process air conditioning. Background Art

[0002] Painting is a crucial part of the automobile manufacturing process. The environmental conditions in the spray booth have a decisive influence on the final paint film quality. In order to ensure that the paint film is uniform, smooth and defect-free, the temperature and humidity inside the spray booth need to be kept within a very precise and continuously stable range. The use of a process air conditioning system can provide highly accurate temperature and humidity control capabilities. It uses advanced sensors to monitor the temperature and humidity in the spray booth in real time, and automatically adjusts the cooling, heating, and dehumidification or humidification functions according to preset parameters to achieve the ideal process requirements. The process air conditioning system can ensure that the paint can be fully dried and cured at a suitable temperature, avoiding problems such as incomplete drying of the paint film due to overcooling or surface defects caused by overheating; at the same time, it effectively controls the moisture content in the air to prevent water vapor condensation (rewetting) on ​​the paint film surface when the humidity is too high, or serious static electricity when the humidity is too low, affecting the spraying effect and paint film quality. Therefore, the use of a process air conditioning system in the automobile painting process is of great significance in improving product quality, reducing production costs, and ensuring production safety and environmental protection.

[0003] In order to meet the requirements of temperature and humidity production processes, process air conditioners usually adopt fixed control strategies for continuous production. However, traditional control technology has weak decoupling capabilities for temperature and humidity, resulting in frequent fluctuations in temperature and humidity. The valve opening of this control method is relatively large, and the temperature and humidity curves fluctuate greatly, resulting in high energy consumption. How to achieve precise energy-saving adjustment of valves in process air conditioning pipelines and realize integrated collection of temperature and humidity in pipelines have become technical problems that technical personnel in this field need to solve. Utility Model Content

[0004] This device provides an energy-saving control device for process air conditioning, and the specific implementation method is as follows:

[0005] An energy-saving control device for process air conditioning, comprising:

[0006] An air supply pipeline and two connecting valves installed on the air supply pipeline and a process air conditioner, and the two connecting valves are respectively arranged at the front and rear ends of the process air conditioner, the connecting valve is a three-way valve structure, and a return air pipeline for residual air bypass complementation is also arranged between the two connecting valves, the connecting valves are integrated with temperature probes and humidity probes, and the valves are also provided with an electrically driven valve opening adjustment unit;

[0007] The controller has a signal input terminal electrically connected to the temperature probe and humidity probe of the two connected valves, and a valve opening adjustment unit electrically connected to the signal output terminal of the controller. The controller adjusts the valve opening according to the temperature and humidity conditions before and after the air enters, thereby achieving energy saving effects.

[0008] Based on the above technical solutions, an artificial intelligence model based on big data and gray box mode is integrated in the controller. It adopts the existing conventional artificial intelligence algorithm to integrate the temperature and humidity information of the process air-conditioning inlet and outlet. By studying the relationship between the air-conditioning inlet temperature, humidity and outlet temperature, humidity variables, the mechanism model + data drive are combined to achieve a stable control effect.

[0009] Preferably, the connecting valve is divided into a first connecting valve at the front end and a second connecting valve at the rear end. The two have the same structure, and the difference is that the assembly directions on the air supply duct are opposite. Taking the second connecting valve as an example, it includes a valve body with a cavity, inlet and outlet pipes are provided on both sides of the circumference of the valve body, and a motor and temperature and humidity detection terminals are respectively provided on both sides of the end.

[0010] Preferably, the output end of the motor is connected to a screw rod in the valve body cavity, and an isolation tube is sleeved on the outside of the screw rod; an annular block is slidably provided between the inner side of the valve body and the isolation tube, and the annular block abuts against the position of the outlet pipe for adjusting the valve opening.

[0011] Preferably, a magnetic slip ring is slidably provided on the inner side of the isolation tube, and the magnetic slip ring is threadedly connected to the lead screw, and the magnetic slip ring generates a magnetic attraction force between the isolation tube and the annular baffle.

[0012] Preferably, a main pipe serving as the cavity inlet is opened on one side of the circumferential surface of the valve body, and a first branch pipe and a second branch pipe serving as the cavity outlet are arranged in parallel on the opposite side.

[0013] Based on the above technical solution, the accuracy and reliability of valve control can be significantly improved by adopting a valve opening adjustment unit driven by a screw. The screw drive has high positioning accuracy and repeatability, and can finely adjust the valve opening to meet the strict requirements of the process flow for parameters such as flow and pressure. At the same time, since the screw drive has good linear characteristics, the valve opening and closing process is smoother, and the magnetic attraction between the magnetic slip ring and the annular block is more stable. The annular block can use a magnetic structure with opposite magnetism to the magnetic slip ring, or a metal magnetic material.

[0014] Preferably, the length of the annular blocking block is smaller than the maximum distance between the first branch pipe and the second branch pipe.

[0015] Preferably, a circular through hole is provided at the center of the annular baffle which is slidably mounted on the outside of the isolation tube; the side of the annular baffle facing the first branch tube is arranged to be an arc surface matching the first branch tube, and the side facing the main tube is arranged to be an axially conductive open cavity, and a plurality of mutually conductive arc grilles are provided on the side of the open cavity.

[0016] Preferably, a positioning ring is provided at the front end of the detection terminal, and the two are axially slidingly connected. A hand valve is provided on the side of the valve body, and the end of the hand valve is threadedly connected to the positioning ring. The detection terminal axially passes through the hand valve to reach the inside of the valve body.

[0017] Based on the above technical solution, without shutting down the process air conditioner, the detection terminal can be replaced by pulling out the detection terminal and closing the hand valve. After the hand valve is completely closed, the area is isolated from the entire process air conditioning system; at this time, the old detection terminal can be safely removed, which also ensures that no medium continues to pass during the replacement process.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. The utility model integrates the temperature probe and the humidity probe into the connecting valve, and realizes the precise control of the connecting valve opening through the controller and the screw structure, so that the temperature and humidity fluctuations become smaller, thereby saving more energy;

[0020] 2. The utility model realizes the isolation of the screw structure from the gas passage in the valve through the isolation tube, and realizes the change of the opening of the connecting valve by using the magnetic attraction between the magnetic slip ring and the annular block;

[0021] 3. The utility model has a simple structure and realizes real-time replacement of the integrated temperature probe and humidity probe when the process air conditioning is running by setting a hand valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the second connecting valve in the utility model;

[0024] Figure 3 This utility model Figure 2 A cross-sectional view of the structure from the middle front view;

[0025] Figure 4 This utility model Figure 2 Section of the structure Figure 1 ;

[0026] Figure 5 This utility model Figure 2 Section of the structure Figure 2 ;

[0027] Figure 6 This utility model Figure 2 A cross-sectional view of the structure from the middle side;

[0028] Figure 7 It is a cross-sectional view of the explosion structure of the second connecting valve in the utility model.

[0029] Description of reference numerals:

[0030] 1. process air conditioner, 2. first connecting valve, 3. second connecting valve, 4. supply air duct, 5. return air duct, 6. controller, 301. valve body, 302. motor, 303. detection terminal, 304. hand valve, 305. screw rod, 306. annular block, 307. magnetic slip ring, 308. isolation tube, 309. first concave-convex structure, 310. positioning ring, 311. second concave-convex structure, 3011. first branch pipe, 3012. second branch pipe, 3013. main pipe, 3031. temperature probe, 3032. humidity probe, 3061. open cavity, 3062. arc grille, 3063. circular through hole, 3101. internal thread, 3041. external thread. DETAILED DESCRIPTION

[0031] The following describes the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments:

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0033] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0034] The following is combined with Figure 1-7 This application is described in further detail.

[0035] The embodiment of the present application discloses an energy-saving control device for process air conditioning.

[0036] Example 1

[0037] Reference Figures 1 to 3The present embodiment discloses an energy-saving control device for a process air conditioner, comprising a controller 6, an air supply pipeline 4, two connecting valves installed on the air supply pipeline 4, and a process air conditioner 1, wherein the two connecting valves are respectively arranged at the front and rear ends of the process air conditioner 1, the connecting valve is a three-way valve structure, and a return air pipeline 5 for complementary residual air bypass is also arranged between the two connecting valves, a temperature probe 3031 and a humidity probe 3032 are integrated in the connecting valves, and an electrically driven valve opening adjustment part is also arranged in the valve, the signal input end of the controller 6 is electrically connected to the temperature probes 3031 and the humidity probes 3032 of the two connecting valves, the valve opening adjustment part is electrically connected to the signal output end of the controller 6, and the valve opening is adjusted by the controller 6 according to the temperature and humidity states before and after the air intake, thereby achieving an energy-saving effect.

[0038] The connecting valve is divided into a first connecting valve 2 at the front end and a second connecting valve 3 at the rear end. The two have the same structure, and the difference is that the assembly directions on the air supply pipeline 4 are opposite. Taking the second connecting valve 3 as an example, it includes a valve body 301 with a cavity, and inlet and outlet pipes are arranged on both sides of the circumference of the valve body 301, and a motor 302 and temperature and humidity detection terminals 303 are respectively arranged on both sides of the end.

[0039] A main pipe 3013 serving as a cavity inlet is opened on one side of the circumference of the valve body 301, and a first branch pipe 3011 and a second branch pipe 3012 serving as cavity outlets are arranged in parallel on the opposite side. In this structure, the main pipe 3013 of the second connecting valve 3 is connected to the inlet side of the air supply duct 4, its first branch pipe 3011 is connected to the outlet side of the air supply duct 4, and the second branch pipe 3012 is connected to the return air duct 5; the first branch pipe 3011 of the first connecting valve 2 is connected to the inlet side of the air supply duct 4, its second branch pipe 3012 is connected to the return air duct 5, and its main pipe 3013 is connected to the outlet side of the air supply duct 4.

[0040] The specific implementation process is that the wind enters the process air conditioner 1 through the air supply pipeline 4 and the first connecting valve 2 to produce temperature changes, and the spraying operation is carried out externally through the air supply pipeline 4 and the second connecting valve 3; the valve opening of the second connecting valve 3 is controlled by the controller 6, and the excess air volume returns to the air inlet end of the process air conditioner 1 through the return air pipeline 5 for secondary utilization. In this process, real-time monitoring of temperature and humidity is realized, and the precise opening and closing of the valve is realized through the valve opening adjustment part, so that the temperature and humidity fluctuations of the exhaust air under working conditions are smaller and the energy consumption is lower.

[0041] Example 2

[0042] Reference Figures 2 to 6Based on the above embodiments, the present embodiment further discloses an energy-saving control device for a process air conditioner, wherein the output end of the motor 302 is connected to a screw rod 305 in the cavity of the valve body 301, and an isolation tube 308 is sleeved on the outside of the screw rod 305, an annular block 306 is slidably provided between the inner side of the valve body 301 and the isolation tube 308, the annular block 306 abuts against the position of the outlet pipe, a magnetic slip ring 307 is slidably provided on the inner side of the isolation tube 308, and the magnetic slip ring 307 is threadedly connected to the screw rod 305, the magnetic slip ring 307 generates a magnetic attraction force through the isolation tube 308 and the annular block 306, in this structure, a first concave-convex structure 309 for preventing circumferential relative rotation is provided between the isolation tube 308 and the magnetic slip ring 307, and a second concave-convex structure 311 for preventing circumferential relative rotation is provided between the inner side of the valve body 301 and the isolation tube 308.

[0043] The length of the annular baffle 306 is smaller than the maximum distance between the first branch pipe 3011 and the second branch pipe 3012. A circular through hole 3063 is provided at the center of the annular baffle 306 and is slidably mounted on the outside of the isolation pipe 308. In this structure, the length of the annular baffle 306 enables it to reciprocate between the first branch pipe 3011 and the second branch pipe 3012, that is, when the passage diameter of the first branch pipe 3011 is enlarged, the passage diameter of the second branch pipe 3012 is reduced, and vice versa, when the passage diameter of the first branch pipe 3011 is reduced, the passage diameter of the second branch pipe 3012 is enlarged.

[0044] The side of the annular baffle 306 facing the first branch pipe 3011 is configured as an arc surface matching therewith, and the side facing the main pipe 3013 is configured as an axially conductive open cavity 3061, and the side of the open cavity 3061 is provided with a plurality of mutually conductive arc grids 3062.

[0045] After being introduced from the main pipe 3013, the wind passes through the arc grille 3062 into the open cavity 3061, and then passes through the open cavity 3061 laterally and is discharged to the outside from the first branch pipe 3011 and the second branch pipe 3012; during this period, the controller 6 controls the motor 302 to drive the screw rod 305 to rotate, that is, the magnetic slip ring 307 moves along the length direction of the isolation tube 308; synchronously, the annular baffle 306 also moves along the length direction of the isolation tube 308, and the shielding area between it and the first branch pipe 3011 and the second branch pipe 3012 changes, thereby causing the valve opening to change accurately.

[0046] Example 3

[0047] Reference Figure 2 and Figure 7Based on the above embodiments, this embodiment further discloses an energy-saving control device for a process air conditioner. A positioning ring 310 is provided at the front end of the detection terminal 303, and the two are axially slidably connected. A hand valve 304 is provided on the side of the valve body 301, and the end of the hand valve 304 is threadedly connected to the positioning ring 310. In this structure, an internal thread 3101 is provided on the positioning ring 310, and an external thread 3041 is provided on the outer end of the hand valve 304. When in use, the positioning ring 310 and the hand valve 304 are connected as a whole, and the detection terminal 303 axially passes through the hand valve 304 to reach the valve body 301 for temperature and humidity detection; when the detection terminal 303 is replaced, the detection terminal 303 is axially pulled out compared to the positioning ring 310, and the positioning ring 310 and the detection terminal 303 are disassembled after closing the hand valve 304.

[0048] Many other changes and modifications can be made without departing from the concept and scope of the utility model. It should be understood that the utility model is not limited to a specific embodiment, and the scope of the utility model is defined by the appended claims.

Claims

1. An energy-saving control device for process air conditioning, characterized in that: include: An air supply pipeline (4), two connecting valves installed on the air supply pipeline (4), and a process air conditioner (1), wherein the two connecting valves are respectively arranged at the front and rear ends of the process air conditioner (1), the connecting valve is a three-way valve structure, and a return air pipeline (5) for complementary residual air bypass is also arranged between the two connecting valves, a temperature probe (3031) and a humidity probe (3032) are integrated in the connecting valves, and an electrically driven valve opening adjustment unit is also arranged in the valves; A controller (6), wherein a signal input end of the controller (6) is electrically connected to the temperature probe (3031) and the humidity probe (3032) of the two connecting valves, and a valve opening adjustment unit is electrically connected to a signal output end of the controller (6). The valve opening is adjusted by the controller (6) according to the temperature and humidity conditions before and after air intake, thereby achieving an energy-saving effect.

2. The energy-saving control device for process air conditioning according to claim 1 is characterized in that: The connecting valve is divided into a first connecting valve (2) at the front end and a second connecting valve (3) at the rear end, and the two have the same structure, except that they are assembled in opposite directions on the air supply pipeline (4); Taking the second connecting valve (3) as an example, it comprises a valve body (301) provided with a cavity, inlet and outlet pipes are provided on both sides of the circumference of the valve body (301), and a motor (302) and temperature and humidity detection terminals (303) are provided on both sides of the end thereof.

3. The energy-saving control device for process air conditioning according to claim 2 is characterized in that: The output end of the motor (302) is connected to a screw rod (305) in the cavity of the valve body (301), and an isolation tube (308) is sleeved on the outside of the screw rod (305); An annular block (306) is slidably provided between the inner side of the valve body (301) and the isolation pipe (308), and the annular block (306) abuts against the position of the outlet pipe to adjust the valve opening.

4. The energy-saving control device for process air conditioning according to claim 3 is characterized in that: A magnetic slip ring (307) is slidably disposed inside the isolation tube (308), and the magnetic slip ring (307) is threadedly connected to the screw rod (305). The magnetic slip ring (307) generates a magnetic attraction force between the isolation tube (308) and the annular block (306).

5. The energy-saving control device for process air conditioning according to claim 4, characterized in that: The valve body (301) has a main pipe (3013) as a cavity inlet on one side of its circumference, and a first branch pipe (3011) and a second branch pipe (3012) as cavity outlets are arranged in parallel on the opposite side.

6. The energy-saving control device for process air conditioning according to claim 5, characterized in that: The length of the annular blocking block (306) is smaller than the maximum distance between the first branch pipe (3011) and the second branch pipe (3012).

7. The energy-saving control device for process air conditioning according to claim 5, characterized in that: A circular through hole (3063) is provided at the center of the annular blocking block (306) and is slidably sleeved on the outside of the isolation tube (308); The side of the annular baffle (306) facing the first branch pipe (3011) is configured as an arc surface that matches the first branch pipe (3011), and the side of the annular baffle (306) facing the main pipe (3013) is configured as an axially conductive open cavity (3061), and the side of the open cavity (3061) is provided with a plurality of mutually conductive arc grids (3062).

8. The energy-saving control device for process air conditioning according to claim 7, characterized in that: A positioning ring (310) is provided at the front end of the detection terminal (303), and the two are axially slidably connected. A hand valve (304) is provided on the side of the valve body (301), and the end of the hand valve (304) is threadedly connected to the positioning ring (310). The detection terminal (303) axially passes through the hand valve (304) to reach the inside of the valve body (301).

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