Ventilator spraying device

Abstract

The utility model relates to a ventilator spraying device, in particular to a ventilator spraying device, which relates to the technical field of ventilators, is matched with a ventilator for installation and comprises a delivery pipe, and the delivery pipe is externally connected with a water supply tank. A flow dividing mechanism is installed on the outer side of a machine shell of the ventilator, a conveying pipe is connected with the flow dividing mechanism and divided into branch pipes, the branch pipes extend into the ventilator and form mist spray, the mist spray and high-speed airflow are mixed to wash impeller blades, accumulated dust on the impeller blades is effectively removed, and stable operation of the ventilator is guaranteed. A drain outlet is formed in the bottom of a casing of the ventilator and is communicated with a drain pipe; the conveying pipe is made of steel pipe materials, the branch pipe comprises the first spraying pipe and the second spraying pipe, the first spraying pipe and the second spraying pipe are both made of hose materials, the butt joint interface of the conveying pipeline cannot be dislocated under the field assembly condition, the branch pipe is in threaded connection, maintenance is convenient, and the overall structure is simple and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilators, in particular to a spray device for a ventilator. Background Art

[0002] During the use of fan equipment, some gas media contain relatively high dust content, which causes dust to easily accumulate on the impeller blades during the operation of the fan. The dust accumulation on the blades will destroy the dynamic balance of the impeller, thereby causing the fan to vibrate. Severe vibration will damage the fan equipment and affect production. Therefore, the fan equipment needs to be cleaned during use or after a period of use. However, some production lines may not allow frequent shutdowns for maintenance that affect production efficiency. In actual use, F-type fans are mostly used as induced draft fans and on-site dust removal. This type of fan has an air inlet box, and it is difficult to flush it directly with pipes. How to complete the flushing of impeller dust without stopping the machine has become a problem to be solved. Utility Model Content

[0003] In order to improve the problems of the ventilator in use in the above background technology, the utility model provides a ventilator spray device, which can complete the flushing of the ventilator impeller without stopping the machine, thereby achieving the purpose of cleaning dust accumulation.

[0004] The utility model provides a ventilator spray device adopting the following technical solutions:

[0005] A ventilator spray device is installed in conjunction with the ventilator, comprising a delivery pipe, the delivery pipe being externally connected to a water supply box; a diversion mechanism is installed on the outside of the ventilator casing, the delivery pipe is connected to the diversion mechanism and diverts a branch pipe, the branch pipe extends into the interior of the ventilator, and a sewage outlet is provided at the bottom of the ventilator casing and connected to the sewage outlet pipe.

[0006] Preferably, the diversion mechanism includes a pressure pump, which is fixedly mounted on the outside of the housing of the ventilator. The output end of the pressure pump is provided with a multi-way connector, and the output end of the multi-way connector is provided with a switch valve.

[0007] Preferably, the branch pipe includes a first spray pipe and a second spray pipe, an air intake box is provided at the input end of the ventilator, the tail end of the first spray pipe extends to the interior of the air intake box and a first nozzle is provided at the end of the first spray pipe, the first nozzle is aligned with the impeller inside the ventilator; a second nozzle is provided at the end of the second spray pipe, and the second nozzle is provided on the inner side of the ventilator casing.

[0008] Preferably, a fixing pin for fixing the second spray pipe is provided on the inner side of the housing of the ventilator along the laying direction of the second spray pipe.

[0009] Preferably, the delivery pipe is made of steel pipe, and the first spray pipe and the second spray pipe are both made of hose material.

[0010] Preferably, a threaded steel pipe is provided through the casing of the ventilator, and both ends of the threaded steel pipe are respectively threadedly connected to the end of the first spray pipe, which solves the problem that the hose cannot be welded to the casing when passing through the casing, which easily causes air leakage in the ventilator equipment. Therefore, a threaded steel pipe is used instead to connect with the branch pipes inside and outside the casing.

[0011] Preferably, a sliding door is provided on the side of the casing of the ventilator, and a latch is provided at the end of the sliding door, so as to facilitate the installation and maintenance of the branch pipe without disassembling the casing.

[0012] In summary, the present invention has the following beneficial technical effects:

[0013] 1. The utility model designs a fan spray device, which extends the branch pipe to the inside of the fan and forms a water spray. The water spray is mixed with the high-speed airflow to flush the impeller blades, effectively removing the dust accumulated on the impeller blades, meeting the user's needs for non-stop cleaning, ensuring that the fan will not vibrate due to dust accumulation, greatly reducing the fan failure rate and production and maintenance costs, and ensuring the stable operation of the fan.

[0014] 2. Both the first spray pipe and the second spray pipe are made of hose material, which ensures that the docking interface of the conveying pipeline will not be misaligned during on-site assembly. The threaded connection also facilitates maintenance, and the overall structure is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a partial perspective view of a ventilator spray device according to an embodiment of the present utility model;

[0016] Figure 2 yes Figure 1 Sectional view along line AA;

[0017] Figure 3 yes Figure 1 The enlarged schematic diagram of point B in the middle;

[0018] Figure 4 This is a structural diagram of the diversion mechanism of an embodiment of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the first nozzle of an embodiment of the present utility model.

[0020] Explanation of the accompanying symbols: 1. Fan; 2. Delivery pipe; 3. Water supply tank; 4. Casing; 5. Diverter mechanism; 6. Branch pipe; 7. Drain outlet; 8. Drain pipe; 9. Pressure pump; 10. Multi-way connector; 11. Switch valve; 12. First spray pipe; 13. Second spray pipe; 14. Air inlet box; 15. First nozzle; 16. Second nozzle; 17. Impeller; 18. Fixing pin; 19. Threaded steel pipe; 20. Sliding door; 21. Latch; 22. Impeller housing; 23. Drive shaft. DETAILED DESCRIPTION

[0021] The following combination Figure 1-Figure 5 The utility model is described in further detail.

[0022] The embodiment of the utility model discloses a ventilator spray device.

[0023] Reference Figure 1 、 Figure 2 A fan spray device is installed in conjunction with the fan 1. The fan 1 includes a casing 4 and an impeller 17 inside the casing 4. The impeller 17 is driven to rotate by a transmission shaft 23. An impeller shell 22 is provided on the outside of the impeller 17. The fan spray device includes a delivery pipe 2, which is externally connected to a water supply box 3; a diverter mechanism 5 is installed on the outside of the casing 4 of the fan 1, the delivery pipe 2 is connected to the diverter mechanism 5 and diverts a branch pipe 6, which extends to the inside of the fan 1, and a sewage outlet 7 is provided at the bottom of the casing 4 of the fan 1 and is connected to a sewage outlet 8.

[0024] Reference Figure 1 、 Figure 2 、 Figure 4 The diversion mechanism 5 includes a pressure pump 9, which is installed and fixed on the outside of the casing 4 of the ventilator 1. The output end of the pressure pump 9 is provided with a multi-way connector 10 and the output end of the multi-way connector 10 is provided with a switch valve 11, which can adjust the output of the diversion mechanism 5.

[0025] Reference Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 The branch pipe 6 includes a first spray pipe 12 and a second spray pipe 13. An air intake box 14 is provided at the input end of the ventilator 1. The tail end of the first spray pipe 12 extends to the inside of the air intake box 14 and a first nozzle 15 is provided at the end of the first spray pipe 12. The first nozzle 15 is aligned with the impeller 17 inside the ventilator 1; a second nozzle 16 is provided at the end of the second spray pipe 13, and the second nozzle 16 is provided on the inner side of the casing 4 of the ventilator 1.

[0026] Reference Figure 1 、 Figure 4A fixing pin 18 for fixing the second spray pipe 13 is provided on the inner side of the casing 4 of the ventilator 1 along the laying direction of the second spray pipe 13. The fixing pin 18 is used to fix the second spray pipe 13. The second spray pipe 13 is fixedly attached to the inner wall of the casing 4, and the water pipe line is not messy.

[0027] Reference Figure 1 、 Figure 2 、 Figure 4 The delivery pipe 2 is made of steel pipe, and the first spray pipe 12 and the second spray pipe 13 are both made of hose material. When the ventilator and the ventilator spray device are assembled on site, the docking interface of the delivery pipe 2 and the branch pipe 6 will not be misaligned. At the same time, the hose connection greatly reduces the difficulty of welding and reduces production costs. The end of the first spray pipe 12 is made of steel pipe, which is convenient for welding and fixing inside the air intake box 14.

[0028] Reference Figure 1 、 Figure 3 、 Figure 4 A threaded steel pipe 19 is provided through the casing 4 of the ventilator 1. The two ends of the threaded steel pipe 19 are respectively threadedly connected to the end of the first spray pipe 12, which solves the problem that the hose cannot be welded with the casing 4 when passing through the casing 4, which easily causes air leakage in the ventilator equipment. Therefore, the threaded steel pipe 19 is used instead and connected to the branch pipe 6 inside and outside the casing 4.

[0029] Reference Figure 2 A sliding door 20 is provided on the side of the casing 4 of the ventilator 1, and a latch 21 is provided at the end of the sliding door 20, which facilitates the installation and maintenance of the branch pipe 6 without disassembling the casing 4.

[0030] The implementation principle of a fan spray device according to an embodiment of the present utility model is as follows: when the fan 1 is running, the air flows into the inside of the fan 1 through the air inlet box 14, and after the gas is collected, it enters through the inlet of the impeller housing 22 and is centrifugally pressurized by the rotation of the impeller 17, and flows out of the outlet of the impeller housing 22, and then rotates along the volute profile according to the rotation direction of the impeller 17, and is finally discharged at the outlet position of the casing 4 of the fan 1. The utility model is installed in conjunction with the fan 1. During the above process, the air inlet box 14 and the inlet of the impeller housing 22 are both under negative pressure, and the outlet of the impeller housing 22 and the outlet position of the casing 4 of the fan 1 are under positive pressure. After the spray device is started, the water flows through the delivery pipe 2 and is pressurized by the pressure pump 9. After diversion, a part of the water flows into the air inlet box 14 and is sprayed out from the first nozzle 15 inside the air inlet box 14. The water spray forming position is located between the air inlet box 14 and the inlet of the impeller housing 22, and this position can ensure more water. After entering the impeller 17, the water spray enters the inside of the impeller 17 under the action of negative pressure, mixes with the air flow inside the impeller 17, and flushes the blades of the impeller 17 with the high-speed air flow. The dust falls off under the flushing of the water flow and is discharged at the outlet of the impeller shell 22 with the water flow. Then, under the action of gravity, the dust-laden water flow will gather and converge at the lower part of the casing 4. The other part of the diverted water flow is sprayed out through the second nozzle 16 to flush the inner side of the casing 4 and the impeller shell 22. The mixed water flow is then discharged through the sewage pipe 8 at the lowest end of the casing 4.

[0031] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fan spray device, installed in conjunction with a fan (1), characterized in that: The invention comprises a delivery pipe (2), the delivery pipe (2) being externally connected to a water supply box (3); a diversion mechanism (5) being installed on the outside of a casing (4) of the ventilator (1); the delivery pipe (2) being connected to the diversion mechanism (5) and diverting water out of a branch pipe (6); the branch pipe (6) extending into the interior of the ventilator (1); and a sewage outlet (7) being provided at the bottom of the casing (4) of the ventilator (1) and being connected to a sewage outlet pipe (8).

2. A ventilator spray device according to claim 1, characterized in that: The diversion mechanism (5) includes a pressure pump (9), which is fixedly mounted on the outside of the housing (4) of the ventilator (1). The output end of the pressure pump (9) is provided with a multi-way connector (10), and the output end of the multi-way connector (10) is provided with a switch valve (11).

3. A ventilator spray device according to claim 1, characterized in that: The branch pipe (6) includes a first spray pipe (12) and a second spray pipe (13); an air inlet box (14) is provided at the input end of the ventilator (1); the tail end of the first spray pipe (12) extends into the interior of the air inlet box (14); and a first nozzle (15) is provided at the end of the first spray pipe (12), and the first nozzle (15) is aligned with the impeller (17) inside the ventilator (1); and a second nozzle (16) is provided at the end of the second spray pipe (13), and the second nozzle (16) is provided inside the housing (4) of the ventilator (1).

4. A ventilator spray device according to claim 3, characterized in that: A fixing pin (18) for fixing the second spray pipe (13) is provided on the inner side of the housing (4) of the ventilator (1) along the laying direction of the second spray pipe (13).

5. The ventilator spray device according to claim 3, characterized in that: The delivery pipe (2) is made of a steel pipe, and the first spray pipe (12) and the second spray pipe (13) are both made of a hose.

6. A ventilator spray device according to claim 5, characterized in that: A threaded steel pipe (19) is provided through the casing (4) of the ventilator (1), and both ends of the threaded steel pipe (19) are respectively threadedly connected to the end of the first spray pipe (12).

7. The ventilator spray device according to claim 1, characterized in that: A sliding door (20) is provided on the side of the housing (4) of the ventilator (1), and a latch (21) is provided at the end of the sliding door (20).

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