Textile central air conditioning spraying system

Abstract

The application relates to the field of air conditioner spraying systems, and particularly discloses a central air conditioner spraying system for textiles, which comprises a pre-operation mechanism, a pre-operation mechanism comprises a pre-operation chamber, a pre-collection pool, a pre-water baffle and a pre-spraying assembly, the pre-spraying assembly is used for spraying liquid into the pre-operation chamber; a main operation mechanism, the main operation mechanism is located downstream of the pre-operation mechanism, the main operation mechanism comprises a main operation chamber, a main collection pool, a main water baffle and a main spraying assembly, the main operation chamber and the pre-operation chamber are connected through the pre-water baffle, the through gap of the main water baffle is smaller than that of the pre-water baffle, the main spraying assembly is used for spraying liquid into the main operation chamber, and the atomization particle diameter of the main spraying assembly is always smaller than that of the pre-spraying assembly; and a controller is used for controlling the operation states of the pre-spraying assembly and the main spraying assembly. The application has the effect of prolonging the cleaning cycle of the spraying head and the water baffle.

Description

Technical Field

[0001] This application relates to the field of air conditioning spray systems, and in particular to a central air conditioning spray system for textiles. Background Technology

[0002] Textile air conditioning systems are widely used in production workshops of textile, printing and dyeing, and chemical fiber industries. Their main functions are to cool, humidify, and remove dust from the workshop air in order to maintain a suitable temperature and humidity environment and ensure the stability of production processes and product quality.

[0003] A typical textile air conditioning system usually uses a spray mechanism to spray the mixed airflow of fresh and return air. During the spraying process, the water mist directly contacts the airflow to achieve heat and moisture exchange and dust removal. The spray section is usually equipped with multiple rows of nozzles. In order to obtain a better atomization effect and improve heat exchange efficiency, the nozzle orifice diameter is usually small. As the airflow passes through the spray area in sequence, the water mist collides with and captures impurities such as dust and fiber lint in the airflow. Subsequently, the water droplets are intercepted by the rear baffle plate to ensure that the moisture content of the delivered air meets the process requirements.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: textile workshops contain impurities such as fiber lint and oil particles. After these impurities enter the spray chamber with the airflow, they easily adhere to the surface of the baffle plate (especially at the bends of the baffle plate) to form an oil film and accumulation layer. At the same time, the atomizing nozzles with excessively small nozzles are also easily blocked by impurities such as fiber lint, thus requiring frequent machine shutdowns for manual cleaning. Summary of the Invention

[0005] To address the issue of frequent cleaning of nozzles and baffles, this application provides a central air conditioning spray system for textiles.

[0006] The technical solution of the central air conditioning spray system for textiles provided in this application is as follows: A central air conditioning spray system for textiles includes a pre-operation mechanism, which includes a pre-operation chamber, a pre-collection tank, a pre-baffle plate, and a pre-spray assembly. The pre-spray assembly is used to spray liquid into the pre-operation chamber. The main operating mechanism is located downstream of the pre-operating mechanism. The main operating mechanism includes a main operating chamber, a main collection tank, a main baffle plate, and a main spray assembly. The main operating chamber and the pre-operating chamber are connected by the pre-baffle plate. The gap of the main baffle plate is smaller than that of the pre-baffle plate. The main spray assembly is used to spray liquid into the main operating chamber. The atomized particle size of the main spray assembly is always smaller than that of the pre-spray assembly. The controller is used to control the operating status of the pre-spraying assembly and the main spraying assembly; The pre-spraying assembly includes a pre-spraying pipe disposed in the pre-operation chamber, multiple pre-spraying heads disposed on the pre-spraying pipe, an adjustment structure, and a liquid supply structure. The liquid supply structure is used to supply liquid to the pre-spraying pipe. The pre-spraying heads have two operating states: a spray state and a water curtain state. When the pre-spraying head is in the water curtain state, the liquid and the airflow are in the same direction. The adjustment structure is used to control the pre-spraying head to change its operating state.

[0007] Optionally, the pre-spray head includes a nozzle body, a nozzle cover, and a striking pin. The nozzle cover is slidably connected to the nozzle body and has a central opening that communicates with the nozzle body. The striking pin includes a pin body and a support portion. The support portion passes through the nozzle cover and is fixedly connected to the nozzle body. A guide tube pointing towards the pre-baffle plate is fixedly connected to one side of the nozzle cover. The end of the nozzle cover not connected to the guide tube extends to always be inserted into the nozzle body. When the end of the nozzle cover connected to the guide tube is in contact with the nozzle body, the guide tube is in a closed state. When the end of the nozzle cover connected to the guide tube is separated from the nozzle body, the guide tube is connected to the nozzle body.

[0008] Optionally, the opening of the nozzle cover faces away from the pre-baffle plate.

[0009] Optionally, a sealing gasket is provided at the end of the nozzle cap away from the nozzle body.

[0010] Optionally, the outlet end of the guide pipe is connected to a fan-shaped nozzle.

[0011] Optionally, the adjustment structure includes a control rod slidably connected to the pre-operation chamber and a lever fixed between the nozzle cover and the control rod, wherein the control rod is externally connected to a power source.

[0012] Optionally, the surface of the pre-water barrier is coated with a hydrophilic and oleophobic layer.

[0013] Optionally, the liquid supply structure includes a water supply pipe connected to the pre-spray pipe, a three-way solenoid valve connected to the water supply pipe, a level gauge installed in the main collection tank, a first branch pipe and a second branch pipe connected to the three-way solenoid valve, the three-way solenoid valve and the level gauge being electrically connected to the controller, the first branch pipe being connected to the main collection tank, and the second branch pipe being connected to a water source.

[0014] Optionally, a filter screen is provided at one end of the first branch pipe located in the main collection pool.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. Most of the impurities mixed in the airflow are first removed by the pre-spray mechanism. The remaining small amount of small and lightweight impurities are further removed by the main spray mechanism to ensure that the humidity, cleanliness, and temperature of the airflow finally sprayed out by the air conditioning system are within the qualified range. During this process, due to the large diameter of the pre-spray head and the large gap of the pre-baffle plate, coupled with the hydrophilic and oleophobic layer of the pre-baffle plate, impurities are difficult to accumulate in the pre-spray mechanism. Only a very small amount of small and lightweight impurities remain in the main spray mechanism. These impurities are also difficult to accumulate in the main spray mechanism, thus effectively extending the cleaning cycle. 2. After the system has been running for a specified time, the pre-spray nozzles can also actively clean the pre-baffle plate. The controller controls the adjustment structure to adjust the pre-spray nozzles so that the pre-spray nozzles closest to the pre-baffle plate switch to the water curtain operation state. At this time, the pre-spray nozzles closest to the pre-baffle plate spray water curtains towards the pre-baffle plate. After the water curtain hits the pre-baffle plate, it washes away the debris on the pre-baffle plate and makes it fall into the pre-collection pool. The other pre-spray nozzles that are still in the spraying state continue to spray, so as to achieve the effect of cleaning the pre-baffle plate without stopping the machine, thereby improving the continuity of the air conditioning system operation and production efficiency in the textile workshop. 3. When the level gauge detects that the water level in the main collection tank has reached the preset level, the controller activates the three-way solenoid valve to connect the water supply pipe to the first branch pipe and controls the water pump to run. At this time, the water supplied to the pre-spray pipe is from the main collection tank. The filter screen filters the water drawn by the first branch pipe. Since the openings of the pre-spray nozzles are relatively large, a small amount of impurities cannot clog the pre-spray nozzles, which is equivalent to downgrading the use of the water in the main collection tank, realizing the tiered utilization of "high quality for high use and low quality for low use," while reducing the consumption of fresh water. At the same time, the water in the main collection tank is water that has been sprayed out by the main spray assembly and exchanged heat with the airflow. Therefore, the water temperature in the main collection tank is between the water temperature sprayed out by the main spray assembly and the initial temperature of the airflow. Thus, the water supplied to the pre-spray nozzles by the first branch pipe pre-exchanges heat with the airflow, which facilitates fine heat exchange in the subsequent main spray system. Each has a different focus, making it easier to control. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 It is along Figure 1 Schematic diagram of the cross-sectional structure along line AA; Figure 3 This is a partial structural schematic diagram used in this application to illustrate the pre-spray pipe, pre-spray head, adjustment structure and sealing gasket; Figure 4 This application is primarily used to illustrate the cross-sectional structural diagram of the pre-spray head.

[0017] Reference numerals: 1. Pre-operation mechanism; 11. Pre-operation chamber; 12. Pre-collection tank; 13. Pre-baffle plate; 14. Pre-spray assembly; 141. Pre-spray pipe; 142. Pre-spray head; 1421. Nozzle body; 1422. Nozzle cover; 1423. Impact pin; 14231. Needle body; 14232. Support; 1424. Guide pipe; 1425. Fan-shaped nozzle; 143. Adjustment structure; 1431. Control lever; 1432. Toggle lever; 144. Liquid supply structure; 1441. Water supply pipe; 1442. Three-way solenoid valve; 1443. Level gauge; 1444. First branch pipe; 14441. Filter screen; 1445. Second branch pipe; 2. Main operation mechanism; 21. Main operation chamber; 22. Main collection tank; 23. Main baffle plate; 24. Main spray assembly; 3. Sealing gasket. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0019] This application discloses a central air conditioning spray system for textiles. (Refer to...) Figure 1 and Figure 2 The central air conditioning spray system for textiles includes a pre-operation mechanism 1, a main operation mechanism 2, and a controller. The main operation mechanism 2 is located downstream of the pre-operation mechanism 1, and the controller is used to control the operating status of the pre-spray assembly 14 and the main spray assembly 24.

[0020] The pre-operation mechanism 1 includes a pre-operation chamber 11, a pre-collection tank 12, a pre-baffle plate 13, and a pre-spraying assembly 14. The pre-spraying assembly 14 is used to spray liquid into the pre-operation chamber 11. The pre-collection tank 12 is located at the bottom of the pre-operation chamber 11 and extends to below the pre-baffle plate 13. It is used to collect the spray water and debris carried down by the spray water during the pre-spraying process, as well as the water and debris falling from the pre-baffle plate 13. The main operating mechanism 2 includes a main operating chamber 21, a main collection tank 22, a main baffle 23, and a main spray assembly 24. The main operating chamber 21 is connected to the pre-operating chamber 11 through a pre-baffle 13. The gap of the main baffle 23 is smaller than that of the pre-baffle 13. The pre-baffle 13 can be a shallow corrugated baffle to avoid excessive wind resistance. The main baffle 23 is a herringbone baffle or a multi-wave baffle to provide better water blocking efficiency. The main spray assembly 24 is used to spray liquid into the main operating chamber 21. The atomized particle size of the main spray assembly 24 is always smaller than that of the pre-spray assembly 14.

[0021] The airflow passes sequentially through the pre-operation mechanism 1 and the main operation mechanism 2. During this process, the controller controls the pre-spray assembly 14 and the main spray assembly 24 to spray. The airflow is first cleaned by the larger-diameter water mist sprayed by the pre-spray assembly 14 in the pre-operation chamber 11. Because the water mist sprayed by the pre-spray assembly 14 has a large particle size and high kinetic energy, it avoids the obscuring of the pre-spray assembly 14 by debris, and makes it easier for hydrophobic debris in the textile workshop, such as spinning oils, waxes, and hydrophobic lint, to be captured by the large-diameter water mist, rather than being difficult to wet and encapsulate as small-diameter water mist. When the debris is wetted or even encapsulated by the water mist, its overall weight also increases, and it falls quickly into the pre-collection pool 12, effectively reducing the amount of debris impacting the pre-baffle plate 13, thereby reducing the cleaning frequency of the pre-baffle plate 13. When the airflow passes through the pre-baffle plate 13, the water and debris mixed in the airflow are intercepted by the pre-baffle plate 13 and fall into the pre-collection pool 12, thereby removing most of the debris and water in the airflow. Furthermore, because the pre-baffle plate 13 has a large gap, it is more difficult for debris to block the pre-baffle plate 13, and it is easier to clean. In addition, the wind resistance is small.

[0022] After the airflow enters the main operating chamber 21 through the pre-baffle plate 13, the main spray assembly 24 sprays water mist with small particle size to exchange heat with the airflow. For example, when it is necessary to cool the airflow in summer, the main spray assembly 24 sprays low-temperature water mist; conversely, when it is necessary to heat the airflow, the main spray assembly 24 sprays high-temperature water mist. During the spraying process in the main operating chamber 21, impurities are further removed. Finally, the main baffle plate 23 removes moisture and a very small amount of debris from the airflow to ensure that the humidity, cleanliness, and temperature of the airflow finally sprayed by the air conditioning system are within the qualified range. Although the gaps through the main baffle plate 23 are relatively small, the amount of debris hitting its surface is also small, and the size and weight of the debris are also small, making it easy to be washed away by the water flow intercepted on the main baffle plate 23 without clogging it. Similarly, since most debris, especially large debris, is cleaned up in the pre-operation chamber 11, the small amount of small-volume and light-weight debris entering the main operation chamber 21 is unlikely to obscure the main spray assembly 24, so the frequency of cleaning required in the main operation mechanism 2 is lower.

[0023] Reference Figure 2 and Figure 3The pre-spray assembly 14 includes a pre-spray pipe 141 disposed within a pre-operation chamber 11, multiple pre-spray nozzles 142 disposed on the pre-spray pipe 141, an adjustment structure 143, and a liquid supply structure 144. The pre-spray pipe 141 is a pipe network structure, with multiple vertical pipes arrayed along the width and length directions of the pre-operation chamber 11. All vertical pipes are connected to a main pipe. Multiple pre-spray nozzles 142 are spaced apart on each vertical pipe. To increase the mist output, each vertical pipe has a row of pre-spray nozzles 142 on both sides. The liquid supply structure 144 is used to supply liquid to the main pipe of the pre-spray pipe 141. The pre-spray nozzles 142 have two operating states: a spray state and a water curtain state. When the pre-spray nozzles 142 are in the water curtain state, the liquid and airflow are in the same direction. The adjustment structure 143 is electrically connected to the controller and is used to control the pre-spray nozzles 142 to change their operating states. In actual operation, the pre-spray nozzles 142 on the straight pipes closest to the pre-baffle plate 13 are preferably set to two adjustable operating states; the pre-spray nozzles 142 in other positions can be replaced with conventional nozzles to reduce costs and increase stability.

[0024] When cleaning suspended debris, the regulating structure 143 controls the pre-spray head 142 to be in spray mode. At this time, the debris mixed in the airflow is cleaned by the water mist. After the pre-spray pipe 141 has been running for a period of time, the controller controls the regulating structure 143 to adjust the pre-spray head 142 so that the pre-spray head 142 closest to the pre-baffle plate 13 is switched to the water curtain operation mode. At this time, the pre-spray head 142 closest to the pre-baffle plate 13 sprays water curtain towards the pre-baffle plate 13. After the water curtain hits the pre-baffle plate 13, it disperses the debris on the pre-baffle plate 13 and falls into the pre-collection tank 12. Specifically, most of the water impacting the pre-baffle plate 13 collects and flows down at the first bend of the pre-baffle plate 13, creating a large water flow at the bend. This causes debris collected at the bend of the pre-baffle plate 13 to be washed into the pre-collection tank 12. Of course, a large flow of water also flows down from the straight surface of the pre-baffle plate 13. During this process, other pre-spray nozzles 142 that are still spraying continue to spray, achieving the effect of cleaning the pre-baffle plate 13 without stopping the machine.

[0025] To further enhance the ability to remove debris from the pre-baffle plate 13, the surface of the pre-baffle plate 13 is coated with a hydrophilic and oleophobic layer. Existing conventional baffle plates either have a hydrophobic layer or no coating at all, in order to accelerate the loss of moisture and thus reduce the moisture content of the airflow that ultimately passes through the baffle plate, preventing the moisture content of the airflow blown into the factory from exceeding the standard. In this application, the main baffle plate 23 uses an existing conventional baffle plate, but the surface of the pre-baffle plate 13 is coated with a hydrophilic and oleophobic layer to make the surface of the pre-baffle plate 13 hydrophilic. When moisture collides with the surface of the pre-baffle plate 13, a continuous water film is formed on the surface of the pre-baffle plate 13. Combined with the oleophobicity of the coating, it makes it difficult for hydrophobic debris in the airflow to adhere, fundamentally slowing down the accumulation rate of oil film and hydrophobic debris. In addition, with the cleaning of the pre-spray nozzle 142, the surface of the pre-baffle plate 13 does not require manual cleaning or the manual cleaning cycle is extended. Similarly, due to the hydrophilicity of the surface of the pre-baffle plate 13, the removal rate of moisture on the surface of the pre-baffle plate 13 is relatively low. As a result, the airflow passing through the pre-baffle plate 13 carries slightly more moisture into the main working chamber 21, but this will not affect the heat exchange and further cleaning of debris in the main working chamber 21. Moreover, due to the presence of the main baffle plate 23, the moisture content of the airflow sprayed out after passing through the main baffle plate 23 is still within the acceptable range.

[0026] Correspondingly, the main spray assembly 24 is similar to the pre-spray assembly 14, including a main spray pipe, a main nozzle, and a liquid supply structure 144, but without an adjustment structure 143. The main nozzle can be a directly selected existing nozzle to reduce procurement and maintenance costs. The liquid supply structure 144 is a water pipe connected to the main spray pipe, and the water pipe is connected to the source of the filtered hot water.

[0027] Reference Figure 3 and Figure 4The pre-spray head 142 includes a nozzle body 1421, a nozzle cover 1422, and a striker 1423. The nozzle cover 1422 is slidably connected to the nozzle body 1421, and has an opening in the middle that communicates with the nozzle body 1421. The opening of the nozzle cover 1422 faces away from the pre-baffle plate 13. The striker 1423 includes a needle body 14231 and a support body 14232. The needle body 14231 is divided into multiple segments at its tip. The size of each segment of the needle body 14231 gradually decreases in the direction of airflow. The largest segment is larger than the size of the opening on the nozzle cover 1422, while the other segments are smaller than the size of the opening on the nozzle cover 1422. The support portion 14232 passes through the nozzle cover 1422 and is fixed to the nozzle body 1421. A guide pipe 1424 pointing to the pre-baffle plate 13 is fixed to one side of the nozzle cover 1422. The end of the nozzle cover 1422 not connected to the guide pipe 1424 extends to always be inserted into the nozzle body 1421. When the end of the nozzle cover 1422 connected to the guide pipe 1424 is in contact with the nozzle body 1421, the guide pipe 1424 is in a closed state. When the end of the nozzle cover 1422 connected to the guide pipe 1424 is separated from the nozzle body 1421, the guide pipe 1424 is connected to the nozzle body 1421, and there is a smooth transition between the guide pipe 1424 and the nozzle body 1421.

[0028] When the needle body 14231 is not inserted into the nozzle cover 1422, the pre-spray head 142 is in a spraying state. That is, the high-pressure water in the nozzle body 1421 impacts the needle body 14231, causing the high-pressure water to diffuse into a water mist. The principle is the same as that of the atomizing nozzle of the impact needle 1423. When the adjusting structure 143 controls the nozzle cover 1422 to move away from the nozzle body 1421 until the needle body 14231 is pressed against the end face of the nozzle cover 1422, the needle body 14231 blocks the opening of the nozzle cover 1422. At this time, the guide tube 1424 is connected to the nozzle body 1421. That is, the high-pressure water in the nozzle body 1421 is guided to the guide tube 1424 and sprayed out from the guide tube 1424, so that the liquid sprayed out from the guide tube 1424 impacts the pre-baffle plate 13. Furthermore, since the opening of the nozzle cover 1422 faces away from the pre-baffle plate 13, when the pre-nozzle 142 is in the spraying state, the water mist is in the opposite direction of the airflow. That is, when spraying against the flow, the water mist is suspended in the air for a longer time than when spraying with the flow, which increases the contact time between the water mist and the airflow and debris. Moreover, the relative velocity between the water mist and the debris is greater, and the debris is more easily captured by the water mist, thereby improving the efficiency of debris removal.

[0029] In existing technologies, cleaning the baffle requires shutting down the entire air conditioning system and manually rinsing it. Using a water curtain similar to that described in this application requires additional horizontal nozzles, increasing piping, water supply, and nozzle configuration, thus increasing air resistance and making it easier for moisture to escape from the baffle, resulting in excessively high humidity in the final airflow from the air conditioning system. However, even slight leakage from the baffle in this application has no impact on the final airflow dryness.

[0030] Similarly, due to the limited space through the gaps in the baffle, it is difficult to install vertical spray nozzles in the vertical direction, which is also difficult to maintain and affects the structural strength of the baffle. Furthermore, the dense gaps in the baffle make it impossible to install a spray nozzle in every gap. Additionally, due to airflow, the water does not flow vertically downwards; the lower the baffle, the more debris accumulates (larger debris tends to collect, but due to its weight when wet, it tends to accumulate more at lower points). Most debris gathers at the first bend of the baffle facing the wind, but the water flow there is insufficient to directly target the debris, instead flowing diagonally towards the air conditioning vent. This application addresses this by arranging multiple rows of pre-spray nozzles in the vertical direction to rinse the pre-baffle. The amount of water collected at higher points is relatively less, while the amount of water increases as the height decreases. This reduces the amount of water passing through the pre-baffle and enhances the cleaning effect of large volumes of water on areas with more impurities.

[0031] Reference Figure 2 and Figure 3 The adjustment structure 143 includes a control rod 1431 slidably connected within the pre-operation chamber 11 and a lever 1432 fixed between the nozzle cover 1422 and the control rod 1431. The control rod 1431 is externally connected to a power source, which is electrically connected to the controller. The power source can be a cylinder, a hydraulic cylinder, or a linear motor. When it is necessary to change the state of the pre-spray head 142, the controller controls the power source to drive the control rod 1431 to move. The control rod 1431 then drives the lever 1432 to move, causing the lever 1432 to move the nozzle cover 1422. The movement process is simple, the structure is relatively simple, and the stability is high. Furthermore, to further reduce wind resistance and obstruction of debris, the lever 1432 and the control rod 1431 are aligned with the pre-spray pipe 141 along the airflow direction, reducing the probability of collisions with debris during its suspended forward movement.

[0032] Reference Figure 3A sealing gasket 3 is provided at the end of the nozzle cover 1422 away from the nozzle body 1421, and the water outlet end of the guide pipe 1424 is connected to a fan-shaped nozzle 1425. When the pre-spray head 142 needs to be adjusted to the water curtain state, the large-sized section of the needle body 14231 abuts against the sealing gasket 3, thereby increasing the sealing between the needle body 14231 and the nozzle cover 1422, and the sealing gasket 3 also improves the error redundancy when the adjustment structure 143 is adjusted. The water flow sprayed from the guide pipe 1424 passes through the fan-shaped nozzle 1425 and is sprayed onto the baffle plate in a water curtain shape. Since the gaps in the baffle plate are denser than those in the pre-spray head 142, the water flow is more evenly impacted on the pre-baffle plate 13 after being diffused by the fan-shaped nozzle 1425.

[0033] Reference Figure 1 and Figure 2 The liquid supply structure 144 includes a water supply pipe 1441 connected to the pre-spray pipe 141, a three-way solenoid valve 1442 connected to the water supply pipe 1441, a level gauge 1443 installed in the main collection tank 22, a first branch pipe 1444 and a second branch pipe 1445 connected to the three-way solenoid valve 1442. The three-way solenoid valve 1442 and the level gauge 1443 are both electrically connected to the controller. The first branch pipe 1444 is connected to the main collection tank 22, and a water pump is connected to the first branch pipe 1444. The water pump is electrically connected to the controller. A water source is connected to the second branch pipe 1445. A filter screen 14441 is installed at one end of the first branch pipe 1444 located in the main collection tank 22.

[0034] Due to the pre-cleaning function of the pre-operation mechanism 1, very little debris enters the main operation chamber 21. Only debris with small mass, volume, and inertia can pass through the pre-baffle plate 13. Therefore, the main collection tank 22 contains relatively little debris and is relatively clean. When the level gauge 1443 detects that the water level in the main collection tank 22 has reached the preset level, the controller controls the three-way solenoid valve 1442 to connect the water supply pipe 1441 to the first branch pipe 1444 and controls the water pump to run. At this time, the water supplied to the pre-spray pipe 141 is the water in the main collection tank 22. The filter screen 14441 performs simple filtration on the water drawn by the first branch pipe 1444. Since the openings of the pre-spray nozzles 142 are relatively large, a small amount of impurities cannot block the pre-spray nozzles 142. This is equivalent to downgrading the use of the water in the main collection tank 22, realizing the tiered utilization of "high quality high use and low quality low use", while reducing the consumption of fresh water (simply filtered water, such as tap water). Meanwhile, the water in the main collection tank 22 is water that has been sprayed out by the main spray assembly 24 and exchanged heat with the airflow. Therefore, the water temperature in the main collection tank 22 is between the water temperature sprayed out by the main spray assembly 24 and the initial temperature of the airflow. Thus, the water supplied by the first branch pipe 1444 to the pre-spray head 142 pre-exchanges heat with the airflow, which facilitates fine heat exchange in the subsequent main spray system. Each has a different focus, making it easier to control. When the level gauge 1443 detects that the water level in the main collection tank 22 is low, the controller controls the water pump to shut off and controls the three-way solenoid valve 1442 to form a passage between the water supply pipe 1441 and the second branch pipe 1445, and to form a closed loop between the water supply pipe 1441 and the first branch pipe 1444, until the level gauge 1443 detects that the water level has returned to the preset high level.

[0035] The implementation principle of a central air conditioning spray system for textiles according to an embodiment of this application is as follows: the airflow passes sequentially through the pre-operation mechanism 1 and the main operation mechanism 2. During this process, the controller controls the pre-spray assembly 14 and the main spray assembly 24 to spray. The airflow is first cleaned by the larger water mist sprayed by the pre-spray assembly 14 in the pre-operation chamber 11. When the pre-spray assembly 14 is not in the cleaning operation, the nozzle cover 1422 is pressed against the nozzle body 1421, and the needle part 14231 is not inserted into the nozzle cover 1422. At this time, the high-pressure water in the nozzle body 1421 impacts the needle part 14231, causing the high-pressure water to diffuse into a water mist.

[0036] After the system has been running for a certain period of time, the controller controls the power source to drive the control lever 1431 to move, which in turn causes the lever 1432 to move the nozzle cover 1422 until the needle body 14231 abuts against the end face of the nozzle cover 1422. At this time, the needle body 14231 blocks the opening of the nozzle cover 1422. Meanwhile, the guide pipe 1424 is connected to the nozzle body 1421. The high-pressure water in the nozzle body 1421 is guided to the guide pipe 1424 and sprayed out from the guide pipe 1424. After forming a water curtain through the fan-shaped nozzle 1425, it hits the pre-water baffle plate 13, dispersing the debris on the pre-water baffle plate 13 and causing it to fall into the pre-collection pool 12.

[0037] The water supply to the pre-spray assembly 14 is adjusted based on the data from the water level gauge. When the water level gauge 1443 detects that the water level in the main collection tank 22 has reached the preset water level, the controller controls the three-way solenoid valve 1442 to connect the water supply pipe 1441 to the first branch pipe 1444, and controls the water pump to run. At this time, the water supplied to the pre-spray pipe 141 is the water in the main collection tank 22. When the water level gauge 1443 detects that the water level in the main collection tank 22 is low, the controller controls the water pump to shut down, and controls the three-way solenoid valve 1442 to form a passage between the water supply pipe 1441 and the second branch pipe 1445, and to form a closed loop between the water supply pipe 1441 and the first branch pipe 1444, until the water level gauge 1443 detects that the water level has returned to the preset high water level.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A central air conditioning spray system for textiles, characterized in that, include: The pre-operation mechanism (1) includes a pre-operation chamber (11), a pre-collection tank (12), a pre-water baffle (13), and a pre-spraying assembly (14), which is used to spray liquid into the pre-operation chamber (11). The main working mechanism (2) is located downstream of the pre-working mechanism (1). The main working mechanism (2) includes a main working chamber (21), a main collection tank (22), a main baffle plate (23), and a main spray assembly (24). The main working chamber (21) and the pre-working chamber (11) are connected by the pre-baffle plate (13). The gap of the main baffle plate (23) is smaller than that of the pre-baffle plate (13). The main spray assembly (24) is used to spray liquid into the main working chamber (21). The atomized particle size of the main spray assembly (24) is always smaller than that of the pre-spray assembly (14). A controller is used to control the operating status of the pre-spray assembly (14) and the main spray assembly (24); The pre-spray assembly (14) includes a pre-spray pipe (141) disposed in the pre-operation chamber (11), a plurality of pre-spray nozzles (142) disposed on the pre-spray pipe (141), an adjustment structure (143), and a liquid supply structure (144). The liquid supply structure (144) is used to supply liquid to the pre-spray pipe (141). The pre-spray nozzles (142) have two operating states: a spray state and a water curtain state. When the pre-spray nozzles (142) are in the water curtain state, the liquid and the airflow are in the same direction. The adjustment structure (143) is used to control the pre-spray nozzles (142) to change their operating states.

2. The central air conditioning spray system for textiles according to claim 1, characterized in that: The pre-spray head (142) includes a nozzle body (1421), a nozzle cover (1422), and a striker (1423). The nozzle cover (1422) is slidably connected to the nozzle body (1421), and the nozzle cover (1422) is open in the middle and communicates with the nozzle body (1421). The striker (1423) includes a needle body (14231) and a support part (14232). The support part (14232) passes through the nozzle cover (1422) and is fixed to the nozzle body (1421). A point pointing to the pre-baffle plate (13) is fixed to one side of the nozzle cover (1422). The nozzle cap (1422) has a flow guide tube (1424) connected to the nozzle body (1421). The end of the nozzle cap (1422) not connected to the flow guide tube (1424) extends to always be inserted into the nozzle body (1421). When the end of the nozzle cap (1422) connected to the flow guide tube (1424) is in contact with the nozzle body (1421), the flow guide tube (1424) is in a closed state. When the end of the nozzle cap (1422) connected to the flow guide tube (1424) is separated from the nozzle body (1421), the flow guide tube (1424) is connected to the nozzle body (1421).

3. A central air conditioning spray system for textiles according to claim 2, characterized in that: The opening of the nozzle cover (1422) faces away from the pre-water baffle (13).

4. A central air conditioning spray system for textiles according to claim 2, characterized in that: A sealing gasket (3) is provided at the end of the nozzle cap (1422) away from the nozzle body (1421).

5. A central air conditioning spray system for textiles according to claim 2, characterized in that: The outlet end of the guide pipe (1424) is connected to a fan-shaped nozzle (1425).

6. A central air conditioning spray system for textiles according to claim 1, characterized in that: The adjustment structure (143) includes a control rod (1431) slidably connected in the pre-operation chamber (11) and a lever (1432) fixed between the nozzle cover (1422) and the control rod (1431), and the control rod (1431) is externally connected to a power source.

7. A central air conditioning spray system for textiles according to claim 1, characterized in that: The surface of the pre-water barrier (13) is coated with a hydrophilic and oleophobic layer.

8. A central air conditioning spray system for textiles according to claim 1, characterized in that: The liquid supply structure (144) includes a water supply pipe (1441) connected to the pre-spray pipe (141), a three-way solenoid valve (1442) connected to the water supply pipe (1441), a level gauge (1443) installed in the main collection tank (22), a first branch pipe (1444) and a second branch pipe (1445) connected to the three-way solenoid valve (1442). The three-way solenoid valve (1442) and the level gauge (1443) are both electrically connected to the controller. The first branch pipe (1444) is connected to the main collection tank (22), and the second branch pipe (1445) is connected to a water source.

9. A central air conditioning spray system for textiles according to claim 8, characterized in that: The first branch pipe (1444) is provided with a filter screen (14441) at one end of the main collection tank (22).

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