A spraying device for an evaporative air cooler

Abstract

This invention provides a spraying device for evaporative air coolers, including a mounting frame and a water inlet pipe. The mounting frame has a guide pipe connected to and rotatably connected to the water inlet pipe. Multiple spray pipes are mounted on the guide pipe, each with multiple spray heads. A connecting seat is fitted onto the guide pipe, with an arc-shaped groove on one side and a slidable slider within the groove. The mounting frame also includes a drive motor and a transmission rod. The transmission rod has a first connecting rod and a connecting sleeve at each end. The first connecting rod engages with the output end of the drive motor. A second connecting rod is rotatably connected to the connecting sleeve on the slider, and the angle between the axial direction of the first and second connecting rods is less than 90°. This invention solves the technical problem of small and uneven spray coverage in existing evaporative air cooler spraying systems, resulting in increased spray water coverage and improved uniformity of spraying.

Description

Technical Field

[0001] This utility model relates to the field of evaporative air cooler technology, and in particular to a spray device for evaporative air coolers. Background Technology

[0002] Evaporative air coolers, also known as closed-circuit cooling towers, are a type of high-efficiency and energy-saving cooling equipment that combines water cooling and air cooling technologies. They achieve heat exchange through cross-flow of air, spray water, and circulating water, and adopt a tubular heat exchanger structure. They are characterized by high heat transfer efficiency, compact structure, and water and electricity saving.

[0003] The spray system of existing evaporative air coolers has a relatively simple function. It usually sprays vertically downwards from above the tube bundle, resulting in a small and uneven spray coverage area, which leads to low heat exchange efficiency of the hot fluid inside the tube bundle. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a spray device for evaporative air coolers, which solves the problems of small and uneven spray coverage in existing spray systems for evaporative air coolers.

[0005] According to an embodiment of this utility model, a spraying device for an evaporative air cooler includes a mounting frame and a water inlet pipe. The mounting frame is provided with a rotatable guide pipe, one end of which is connected to and rotatably connected to the water inlet pipe. Multiple spray pipes, each connected to the guide pipe, are spaced apart on the guide pipe, and multiple spray heads are spaced apart on each spray pipe. A connecting seat is fitted onto the guide pipe and is fixedly connected to it. One side of the connecting seat has an arc-shaped groove, and a slidable slider is provided within the arc-shaped groove. The mounting frame is also provided with a drive motor and a transmission rod. The transmission rod is rotatably connected to the mounting frame, and both ends of the transmission rod are respectively provided with a first connecting rod and a connecting sleeve. The first connecting rod cooperates with the output end of the drive motor. The slider is provided with a second connecting rod rotatably connected to the connecting sleeve, and the angle between the axial direction of the first connecting rod and the axial direction of the second connecting rod is less than 90°.

[0006] Furthermore, the mounting bracket is provided with a mounting part and a mounting buckle that is detachably connected to the mounting part, the mounting part and the mounting buckle forming an annulus surrounding the guide tube.

[0007] Furthermore, the mounting part is provided with a first through hole, and the mounting buckle is provided with a second through hole aligned with the first through hole.

[0008] Furthermore, the mounting bracket is provided with two mounting parts and two mounting buckles that are connected to the mounting parts one by one. The two mounting parts are provided at intervals along the axial direction of the guide tube and the connecting seat is located between the two mounting parts.

[0009] Furthermore, a sealing sleeve is provided at the connection between the water inlet pipe and the guide pipe. The sealing sleeve includes two sealing shells, which are fixedly connected, and the water inlet pipe and the guide pipe are located in the sealed space enclosed by the two sealing shells.

[0010] Furthermore, each of the two sealing shells is provided with a plurality of third through holes spaced apart, and the third through holes on the two sealing shells correspond one to one and are aligned.

[0011] Furthermore, the sealing sleeve is provided with two sealing rings spaced apart, one of which is fitted on the water inlet pipe and the other is fitted on the flow guide pipe, and the connection between the water inlet pipe and the flow guide pipe is located between the two sealing rings.

[0012] Furthermore, a bearing is provided inside the sealing sleeve, and the bearing is sleeved on the guide tube.

[0013] Furthermore, the end of the guide pipe away from the water inlet pipe is provided with a branch pipe that communicates with the guide pipe, and a plurality of spray pipes are spaced apart along the axial direction of the branch pipe and are respectively communicated with the branch pipe.

[0014] Compared with the prior art, this utility model has the following beneficial effects: By using a guide pipe connected to the water inlet pipe to guide the spray water into each spray pipe and spray it out from each spray head to spray the spray water onto the tube bundle, the guide pipe is rotatably mounted on the mounting bracket and rotatably connected to the guide pipe. When the transmission rod rotates under the drive motor, the transmission rod drives the slider to rotate around the axis of the first connecting rod and slide back and forth in the arc groove, causing the connecting seat to swing back and forth, thereby driving the guide pipe fixedly connected to the connecting seat to rotate back and forth. During the back and forth rotation of the guide pipe, the spray pipe swings synchronously with the movement of the guide pipe, thereby increasing the coverage area of ​​the spray water sprayed from the spray pipe and enabling the spray water to be sprayed evenly onto the tube bundle, thereby accelerating the heat exchange efficiency of the hot fluid in the tube bundle. It solves the technical problem of small and uneven spray coverage of the existing spray system of evaporative air cooler, and produces the technical effect of expanding the coverage area of ​​the spray water and improving the uniformity of the spray water, which is conducive to accelerating the heat dissipation of the evaporative air cooler. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a spray device for an evaporative air cooler according to an embodiment of the present invention;

[0016] Figure 2 This is a cross-sectional view of a portion of the structure of a spray device for an evaporative air cooler according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the spray device for an evaporative air cooler according to another embodiment of the present invention.

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] In the above attached figures: 1. Mounting bracket; 11. Mounting part; 12. Mounting buckle; 2. Water inlet pipe; 3. Guide pipe; 31. Spray pipe; 32. Spray head; 33. Diverter pipe; 4. Connecting seat; 41. Arc groove; 42. Slider; 43. Second connecting rod; 5. Drive motor; 6. Transmission rod; 61. First connecting rod; 62. Connecting sleeve; 7. Sealing sleeve; 71. Sealing shell; 72. Sealing ring; 73. Bearing. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes a spraying device for an evaporative air cooler, which is installed above the tube bundle of the evaporative air cooler and is used to spray water onto the tube bundle to accelerate the heat exchange of the hot fluid inside the tube bundle.

[0022] Please refer to Figure 1 , Figure 2 and Figure 4The spray device for the evaporative air cooler includes a mounting frame 1 and a water inlet pipe 2. The water inlet pipe 2 is connected to an external water tank for storing spray water and a water pump for transporting spray water. The mounting frame 1 is provided with a rotatable guide pipe 3, one end of which is connected to and rotatably connected to the water inlet pipe 2. Multiple spray pipes 31, each connected to the guide pipe 3, are spaced apart on the guide pipe 3. Multiple spray heads 32 are spaced apart on each spray pipe 31. The spray water... Under the action of the water pump, the water is fed from the water tank through the inlet pipe 2 into the guide pipe 3 and then into each of the spray pipes 31, and sprayed out from the spray head 32 onto the tube bundle to accelerate the heat exchange of the hot fluid in the tube bundle; a connecting seat 4 is sleeved on the guide pipe 3 and the connecting seat 4 is fixedly connected to the guide pipe 3; an arc-shaped groove 41 is provided on one side of the connecting seat 4 and a sliding slider 42 is provided in the arc-shaped groove 41; the mounting bracket 1 is also provided with a drive motor 5 and a transmission rod 6, and the transmission rod 6 is connected to the mounting bracket 1. The mounting bracket 1 is rotatably connected, and the two ends of the transmission rod 6 are respectively provided with a first connecting rod 61 and a connecting sleeve 62. The first connecting rod 61 cooperates with the output end of the drive motor 5. The slider 42 is provided with a second connecting rod 43 rotatably connected to the connecting sleeve 62, and the angle between the axial direction of the first connecting rod 61 and the axial direction of the second connecting rod 43 is less than 90°. When the transmission rod 6 rotates under the drive of the drive motor 5, the transmission rod 6 drives the slider 42 to rotate around the axial direction of the first connecting rod 61. At the same time, the slider 42 reciprocates in the arc groove 41. During the movement of the slider 42, it pushes the connecting seat 4 to swing back and forth, so that the guide pipe 3 fixedly connected to the connecting seat 4 rotates back and forth and drives the spray pipe 31 to move. During the reciprocating swing of the spray pipe 31, the spray head 32 continuously sprays spray water, thereby expanding the coverage of the spray water and making the spray water sprayed from the spray head 32 evenly sprayed on the pipe bundle.

[0023] Specifically, the working process of the spray device for the evaporative air cooler provided in this embodiment is as follows: the water pump is started to input the spray water in the water tank into the guide pipe 3 along the water inlet pipe 2. The spray water entering the guide pipe 3 is guided into each of the spray pipes 31 and sprayed out from each of the spray heads 32 to spray the spray water onto the tube bundle; at the same time as the spray heads 32 spray the spray water, the drive motor 5 is started to drive the transmission rod 6 to rotate. The transmission rod 6 drives the slider 42 to rotate around the axis of the first connecting rod 61. While rotating, the slider 42 slides back and forth within the arc-shaped groove 41, causing the connecting seat 4 to swing back and forth under the drive of the slider 42. This, in turn, causes the guide pipe 3, which is fixedly connected to the connecting seat 4, to rotate back and forth. During the rotation of the guide pipe 3, the spray pipe 31 swings synchronously with the movement of the guide pipe 3, thereby increasing the coverage area of ​​the spray water sprayed from the spray pipe 31 and ensuring that the spray water is evenly sprayed onto the tube bundle, thus accelerating the heat exchange efficiency of the hot fluid within the tube bundle. The spray device for the evaporative air cooler provided in this embodiment increases the coverage area of ​​the spray water through the reciprocating swing of the spray pipe 31, thereby improving the uniformity of the spray water sprayed onto the tube bundle and facilitating faster heat dissipation of the evaporative air cooler.

[0024] like Figure 2 and Figure 4 As shown, the mounting frame 1 is provided with a mounting part 11 and a mounting buckle 12 detachably connected to the mounting part 11. The mounting part 11 and the mounting buckle 12 form an annulus surrounding the guide pipe 3. When assembling the spray device for the evaporative air cooler, the guide pipe 3 is first attached to the mounting part 11, and then the mounting buckle 12 is fixed to the mounting part 11. The annulus formed by the mounting part 11 and the mounting buckle 12 cooperates with the guide pipe 3, thereby installing the guide pipe 3 onto the mounting frame 1 and simultaneously achieving a rotatable connection between the guide pipe 3 and the mounting frame 1, ensuring the overall structural stability of the spray device for the evaporative air cooler.

[0025] In this embodiment, the mounting portion 11 has a first through hole, and the mounting buckle 12 has a second through hole aligned with the first through hole. The mounting buckle 12 can be fixed to the mounting portion 11 by passing a bolt through the first through hole and the second through hole in sequence, and by using a nut to engage with the bolt, thus ensuring a secure connection between the mounting buckle 12 and the mounting portion 11.

[0026] like Figure 1 and Figure 4As shown, the mounting frame 1 is provided with two mounting portions 11 spaced apart and two mounting buckles 12 corresponding to each mounting portion 11. The two mounting portions 11 are spaced apart along the axial direction of the guide pipe 3, and the connecting seat 4 is located between the two mounting portions 11. By providing two mounting portions 11 spaced apart on the mounting frame 1 to cooperate with the guide pipe 3, and fixing the mounting buckles 12 on the two mounting portions 11 respectively, the stability of the cooperation between the guide pipe 3 and the mounting frame 1 is further improved.

[0027] Please refer to Figure 1 , Figure 2 and Figure 4 A sealing sleeve 7 is provided at the connection between the water inlet pipe 2 and the guide pipe 3. The sealing sleeve 7 includes two sealing shells 71, which are fixedly connected, and the water inlet pipe 2 and the guide pipe 3 are located within the sealed space enclosed by the two sealing shells 71. The sealing sleeve 7, composed of the two sealing shells 71, encloses the connection between the water inlet pipe 2 and the guide pipe 3, keeping the connection sealed and ensuring that the guide pipe 3 remains connected to the water inlet pipe 2 during rotation, thus preventing spray water from leaking from the connection between the water inlet pipe 2 and the guide pipe 3.

[0028] In detail, each of the two sealing shells 71 is provided with a plurality of third through holes spaced apart, and the third through holes on the two sealing shells 71 correspond one-to-one and are aligned. By passing the bolt through the aligned third through holes on the two sealing shells 71 and installing a suitable nut on the bolt, the relative position of the two sealing shells 71 can be locked, and the sealing sleeve 7 is kept at the connection between the water inlet pipe 2 and the guide pipe 3, ensuring a reliable connection between the water inlet pipe 2 and the guide pipe 3.

[0029] like Figure 4 As shown, two sealing rings 72 are spaced apart inside the sealing sleeve 7. One sealing ring 72 is fitted onto the water inlet pipe 2, and the other sealing ring 72 is fitted onto the guide pipe 3. The connection between the water inlet pipe 2 and the guide pipe 3 is located between the two sealing rings 72. The sealing rings 72 are used to improve the sealing performance of the sealing sleeve 7, preventing spray water from leaking from the gaps between the sealing sleeve 7 and the water inlet pipe 2, and between the sealing sleeve 7 and the guide pipe 3, thereby improving the stability of the spray device for the evaporative air cooler during operation.

[0030] Specifically, a bearing 73 is provided inside the sealing sleeve 7, and the bearing 73 is sleeved on the guide tube 3. The bearing 73 provided inside the sealing sleeve 7 is used to reduce the friction between the guide tube 3 and the sealing sleeve 7, so that the guide tube 3 can rotate smoothly within the sealing sleeve 7.

[0031] like Figure 1 and Figure 3 As shown, the end of the guide pipe 3 away from the water inlet pipe 2 is provided with a branch pipe 33 that communicates with the guide pipe 3. Multiple spray pipes 31 are spaced apart along the axial direction of the branch pipe 33 and are respectively connected to the branch pipe 33. The branch pipes 33 on the guide pipe 3 guide the spray water into each spray pipe 31, ensuring that the spray water entering the guide pipe 3 can be smoothly input into each spray pipe 31, and ensuring that each spray head 32 can stably spray spray water.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A spray device for an evaporative air cooler, characterized in that: The device includes a mounting frame and a water inlet pipe. The mounting frame has a rotatable guide pipe, one end of which is connected to and rotatably connected to the water inlet pipe. Multiple spray pipes, each connected to the guide pipe, are spaced apart on the guide pipe, and multiple spray heads are spaced apart on each spray pipe. A connecting seat is fitted onto the guide pipe and is fixedly connected to it. One side of the connecting seat has an arc-shaped groove, and a slidable slider is located within the arc-shaped groove. The mounting frame also includes a drive motor and a transmission rod. The transmission rod is rotatably connected to the mounting frame, and its two ends are respectively provided with a first connecting rod and a connecting sleeve. The first connecting rod cooperates with the output end of the drive motor. The slider has a second connecting rod rotatably connected to the connecting sleeve, and the angle between the axial direction of the first connecting rod and the axial direction of the second connecting rod is less than 90°.

2. The spray device for an evaporative air cooler as described in claim 1, characterized in that: The mounting bracket is provided with a mounting part and a mounting buckle that is detachably connected to the mounting part. The mounting part and the mounting buckle form a ring around the guide tube.

3. The spray device for an evaporative air cooler as described in claim 2, characterized in that: The mounting part is provided with a first through hole, and the mounting buckle is provided with a second through hole aligned with the first through hole.

4. The spray device for an evaporative air cooler as described in claim 2, characterized in that: The mounting bracket is provided with two mounting parts and two mounting buckles that are connected to each mounting part in a one-to-one manner. The two mounting parts are provided at intervals along the axial direction of the guide tube and the connecting seat is located between the two mounting parts.

5. The spray device for an evaporative air cooler as described in claim 1, characterized in that: A sealing sleeve is provided at the connection between the water inlet pipe and the guide pipe. The sealing sleeve includes two sealing shells, which are fixedly connected, and the water inlet pipe and the guide pipe are located in the sealed space enclosed by the two sealing shells.

6. The spray device for an evaporative air cooler as described in claim 5, characterized in that: Each of the two sealing shells is provided with a plurality of third through holes spaced apart, and the third through holes on the two sealing shells correspond one to one and are aligned.

7. A spray device for an evaporative air cooler as described in claim 5, characterized in that: The sealing sleeve is provided with two sealing rings spaced apart. One of the sealing rings is fitted on the water inlet pipe and the other sealing ring is fitted on the guide pipe. The connection between the water inlet pipe and the guide pipe is located between the two sealing rings.

8. The spray device for an evaporative air cooler as described in claim 5, characterized in that: The sealing sleeve contains a bearing, which is fitted onto the guide tube.

9. A spray device for an evaporative air cooler as described in claim 1, characterized in that: The end of the guide pipe away from the water inlet pipe is provided with a branch pipe that communicates with the guide pipe, and a plurality of spray pipes are arranged at intervals along the axial direction of the branch pipe and are respectively connected to the branch pipe.

Images