High pressure cleaning gun head for heat exchanger cleaning

Abstract

The utility model relates to the technical field of equipment cleaning, especially to a high-pressure cleaning gun head for cleaning heat exchanger, which comprises a water delivery pipe for connecting with the cleaning gun, a head nozzle is installed on the head of the water delivery pipe, a plurality of side nozzles are installed around the side of the water delivery pipe, and a valve is installed on each of the head nozzle and the side nozzle; the spray angle of at least one side nozzle is different from that of the rest of the side nozzles, or the spray angle of each side nozzle is the same. By using different directions of cleaning of each nozzle, the heat exchanger can be cleaned thoroughly, thereby reducing the cleaning frequency of the equipment, prolonging the service life of the equipment, and ensuring smooth production.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment cleaning, and in particular to a high-pressure cleaning gun head for cleaning heat exchangers. Background Technology

[0002] Currently, most heat exchangers experience reduced heat exchange efficiency after a certain period of operation due to material buildup on the walls, which affects equipment operation and can cause fluctuations in production. Therefore, heat exchangers need to be cleaned after a certain operating cycle.

[0003] Currently used high-pressure cleaning guns typically have only one front outlet, which is suitable for cleaning relatively simple equipment. However, some heat exchangers have complex structures and many blind spots, making it impossible to guarantee the cleanliness of the heat exchanger using existing cleaning guns. These problems affect the service life of the equipment, increase the frequency of cleaning, and negatively impact production. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a high-pressure cleaning gun head for cleaning heat exchangers.

[0005] The high-pressure cleaning gun head for heat exchanger cleaning provided by this utility model adopts the following technical solution: A high-pressure cleaning gun head for cleaning heat exchangers includes a water supply pipe for connection to a cleaning gun, a head nozzle mounted on the head of the water supply pipe, and a plurality of side nozzles mounted around the side of the water supply pipe. Valves are mounted on both the head nozzle and the side nozzles. The spray angle of at least one side nozzle is different from that of the other side nozzles, or the spray angle of each side nozzle is the same.

[0006] By adopting the above technical solution and using various nozzles to clean in different directions, the heat exchanger can be thoroughly cleaned, thereby reducing the cleaning frequency of the equipment, extending the service life of the equipment, and ensuring stable production operation.

[0007] Preferably, the side nozzle is connected to the water supply pipe via a connecting pipe. A limiting mechanism is provided on the peripheral wall of the water supply pipe to facilitate adjustment of the spray angle of the side nozzle. The limiting mechanism includes a fixing plate fixed to the peripheral wall of the water supply pipe, a toothed disc one fixed to the side nozzle, a toothed disc two fixed to the fixing plate, the toothed disc two being used to mesh with the toothed disc one, and a pressing component for pressing the toothed disc one onto the toothed disc two is also provided between the toothed disc one and the fixing plate.

[0008] By adopting the above technical solution, when it is necessary to adjust the spray angle of the side nozzle, the side nozzle is rotated, and the side nozzle rotates synchronously with the first gear plate. Then, the first gear plate is pressed onto the second gear plate by the extrusion assembly. The rotation of the first gear plate is restricted by the fixedly set second gear plate, thereby fixing the spray angle of the side nozzle.

[0009] Preferably, the extrusion assembly includes a connecting rod coaxially fixed to the side of the first gear disk near the second gear disk. The connecting rod slides through the second gear disk and the fixed plate. A knob is installed at the end of the connecting rod. A compression spring is sleeved on the connecting rod. The compression spring elastically supports the knob and the fixed plate.

[0010] By adopting the above technical solution, the compression spring elastically supports the knob, and the knob moves synchronously with the connecting rod. The extrusion assembly has a reasonable structure and is easy to operate.

[0011] Preferably, the end of the connecting rod is threaded with a nut, which is located on the side of the knob away from the compression spring.

[0012] By adopting the above technical solution, rotating the nut makes it easy to adjust the elasticity of the compression spring.

[0013] Preferably, a keyway is provided on the peripheral wall of the connecting rod along the length direction, a protrusion is fixedly connected to the center hole of the knob, the protrusion is slidably inserted into the keyway, a retaining ring is fixedly connected to the side of the nut near the knob, and a hook is fixedly connected to the side of the knob near the nut, the hook is hooked on the retaining ring.

[0014] By adopting the above technical solution, the knob can drive the connecting rod to rotate and move at the same time, making it convenient for the operator to adjust the spray angle of the side nozzle by turning the knob.

[0015] Preferably, a protective grid plate is vertically fixed to the end of the fixing plate away from the water supply pipe, and the side nozzle is located between the protective grid plate and the water supply pipe.

[0016] By adopting the above technical solution, the protective grid plate protects the side nozzles and extends their service life. Attached Figure Description

[0017] Figure 1 This is a side sectional view of the gun head of Embodiment 1 of this utility model.

[0018] Figure 2 This is a frontal sectional view of the gun head of Embodiment 1 of this utility model.

[0019] Figure 3 This is a frontal sectional view of the gun head of Embodiment 2 of this utility model.

[0020] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle.

[0021] Figure 5 This is a front view of the toothed disc of Embodiment 2 of this utility model.

[0022] Figure 6 This is a front view of the knob in Embodiment 2 of this utility model.

[0023] Figure 7 This is a front view of the protective grille of Embodiment 2 of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Water supply pipe; 2. Head nozzle; 3. Side nozzle; 30. Connecting pipe; 4. Valve; 5. Limiting mechanism; 50. Fixing plate; 51. Gear disc one; 52. Gear disc two; 53. Connecting rod; 54. Knob; 540. Protrusion; 541. Hook; 55. Nut; 550. Retaining ring; 56. Compression spring; 57. Protective grille. Detailed Implementation

[0025] The following combination Figures 1-7 The present invention will be described in further detail below.

[0026] This utility model discloses a high-pressure cleaning gun head for cleaning heat exchangers. Example 1

[0027] Reference Figure 1 and Figure 2 The high-pressure cleaning gun head for heat exchanger cleaning includes a water supply pipe 1 for connecting the cleaning gun, a head nozzle 2 connected to the head of the water supply pipe 1, and the spray direction of the head nozzle 2 is the same as the extension direction of the water supply pipe 1; four side nozzles 3 connected to the water supply pipe 1 are evenly installed around the perimeter of the water supply pipe 1, and the outlet angle of the side nozzles 3 can be set to 0°, 20°, 45°, 60°, etc. as required, that is, the spray angles of multiple side nozzles 3 on the same gun head can be different or the same; valves 4 are installed on both the head nozzle 2 and the side nozzles 3.

[0028] The implementation principle of Example 1 is as follows: The side nozzles 3 can be processed into different spray angles as needed. During the use of the cleaning gun, multiple valves 4 do not need to be opened and closed simultaneously. One or more valves 4 can be opened and closed according to actual needs. When direct forward rinsing is required, the valve 4 on the head nozzle 2 is opened and the valve 4 on the side nozzles 3 is closed for direct rinsing to clean the material exposed on the outer surface. When it is necessary to clean the material between the tube bundles, the valve 4 on the head nozzle 2 can be closed according to the actual situation on site. The different angles of the four side nozzles 3 can be used to clean the dead corners. For example, two side nozzles 3 can rinse the material between the fixed tube bundle retainers, and the other two side nozzles 3 can rinse the material between the tube bundles. By using each nozzle to clean in different directions, the heat exchanger can be cleaned, thereby reducing the cleaning frequency of the equipment, increasing the service life of the equipment, and ensuring stable production operation. Example 2

[0029] Reference Figures 3-7 The difference between this embodiment and embodiment 1 is that the nozzle spray angle in this embodiment can be adjusted more flexibly as needed. The side nozzle 3 is connected to the water supply pipe 1 through the connecting pipe 30, which can be bent and deformed; a limiting mechanism 5 is provided on the water supply pipe 1 for each side nozzle 3. The limiting mechanism 5 includes a fixing plate 50 that is vertically fixed to the outer wall of the water supply pipe 1. A toothed disc 51 is fixed to the side wall of the side nozzle 3. The toothed disc 51 has a disc portion and a toothed portion located on one side of the disc portion. The toothed portion includes a plurality of teeth evenly distributed around the center of the disc portion.

[0030] Gear 1 51 meshes with gear 2 52, which has the same structure as gear 1 51. Gear 2 52 is fixed to the fixed plate 50. A connecting rod 53 is coaxially fixed to the side of gear 1 51 near gear 2 52. The connecting rod 53 slides through gear 2 52 and fixed plate 50. A knob 54 is slidably fitted at the end of the connecting rod 53 away from gear 1 51. A keyway is opened on the peripheral wall of the connecting rod 53 along the length direction. A protrusion 540 is fixed at the center hole of the knob 54. The protrusion 540 slides into the keyway, so that the knob 54 can drive the connecting rod 53 to rotate and slide along the length direction of the connecting rod 53.

[0031] A nut 55 is provided on the side of the knob 54 away from the fixed plate 50. The nut 55 is threadedly connected to the connecting rod 53. A retaining ring 550 is coaxially fixed to the side of the nut 55 near the knob 54. Two L-shaped hooks 541 are symmetrically fixed to the side of the knob 54 near the nut 55. The hooks 541 are hooked on the retaining ring 550, so that the knob 54 and the nut 55 move back and forth synchronously. A compression spring 56 is sleeved on the connecting rod 53. The compression spring 56 is elastically supported between the fixed plate 50 and the knob 54. The connecting rod 53, the knob 54, the nut 55 and the compression spring 56 form a compression assembly for fixing the gear disc 51.

[0032] To protect the side nozzle 3, a protective grid plate 57 is vertically fixed to the end of the fixing plate 50 away from the water supply pipe 1. The side nozzle 3 is located between the protective grid plate 57 and the water supply pipe 1. The water flow ejected from the side nozzle 3 can pass through the holes on the protective grid plate 57 to reduce the influence of the protective grid plate 57 on the spray range of the side nozzle 3.

[0033] The implementation principle of Example 2 is as follows: When adjusting the spray angle of the side nozzle 3, the operator can push the knob 54 towards the fixed plate 50. The knob 54 drives the nut 55, connecting rod 53, gear disc 1 51 and side nozzle 3 to move, so that gear disc 1 51 disengages from gear disc 2 52. Then, the knob 54 is rotated, which drives the connecting rod 53, gear disc 1 51 and side nozzle 3 to rotate, so as to adjust the spray angle of the side nozzle 3. After the knob 54 is released, the compression spring 56 extends elastically, driving the knob 54 and gear disc 1 51 to move synchronously, so that gear disc 1 51 and gear disc 2 52 re-engage, thus completing the fixation of the position of the side nozzle 3. Tightening the nut 55 can adjust the elastic force of the compression spring 56, thereby adjusting the tightness of the engagement between gear disc 1 51 and gear disc 2 52. The protective grid plate 57 protects the side nozzle 3 during use and daily storage. By using the limiting mechanism 5, the position of the side nozzle 3 can be easily adjusted according to the spray angle requirements, thus expanding the spray angle range.

[0034] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A high-pressure cleaning gun head for cleaning heat exchangers, characterized in that: It includes a water supply pipe (1) for connection with a cleaning gun, a head nozzle (2) is installed at the head of the water supply pipe (1), and a plurality of side nozzles (3) are installed around the side of the water supply pipe (1). A valve (4) is installed on both the head nozzle (2) and the side nozzles (3); the spray angle of at least one side nozzle (3) is different from the spray angle of the other side nozzles (3), or the spray angle of each side nozzle (3) is the same.

2. The high-pressure cleaning gun head for heat exchanger cleaning according to claim 1, characterized in that: The side nozzle (3) is connected to the water supply pipe (1) through the connecting pipe (30). The water supply pipe (1) is provided with a limiting mechanism (5) to facilitate the adjustment of the spray angle of the side nozzle (3). The limiting mechanism (5) includes a fixing plate (50) fixed to the water supply pipe (1). A toothed disc (51) is fixed to the side nozzle (3). A toothed disc (52) is fixed to the fixing plate (50). The toothed disc (52) is used to mesh with the toothed disc (51). A pressing component is also provided between the toothed disc (51) and the fixing plate (50) to press the toothed disc (51) onto the toothed disc (52).

3. The high-pressure cleaning gun head for heat exchanger cleaning according to claim 2, characterized in that: The extrusion assembly includes a connecting rod (53) coaxially fixed to the side of the first gear disc (51) near the second gear disc (52). The connecting rod (53) slides through the second gear disc (52) and the fixing plate (50). A knob (54) is installed at the end of the connecting rod (53). A compression spring (56) is sleeved on the connecting rod (53). The compression spring (56) is elastically supported between the knob (54) and the fixing plate (50).

4. The high-pressure cleaning gun head for heat exchanger cleaning according to claim 3, characterized in that: The end of the connecting rod (53) is threaded with a nut (55), which is located on the side of the knob (54) away from the compression spring (56).

5. The high-pressure cleaning gun head for heat exchanger cleaning according to claim 4, characterized in that: A keyway is provided on the periphery of the connecting rod (53) along the length direction. A protrusion (540) is fixed at the center hole of the knob (54). The protrusion (540) is slidably inserted into the keyway. A retaining ring (550) is fixed on the side of the nut (55) near the knob (54). A hook (541) is fixed on the side of the knob (54) near the nut (55). The hook (541) is hooked onto the retaining ring (550).

6. The high-pressure cleaning gun head for heat exchanger cleaning according to any one of claims 2-5, characterized in that: A protective grid plate (57) is vertically fixed to the end of the fixed plate (50) away from the water pipe (1), and the side nozzle (3) is located between the protective grid plate (57) and the water pipe (1).

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