Descaling device for heat exchanger

Abstract

The utility model discloses a descaling device for a heat exchanger, belongs to the technical field of heat exchangers, and aims to solve the problems that the heat exchanger in the prior art depends on a chemical cleaning agent, so that the cleaning strength is poor, and the reaction waiting time is long and the cleaning agent consumption is large due to the fact that the scale needs to be completely soaked. A first positioning end plate is fixedly arranged at one end of the positioning hollow pipe, the surface of the positioning hollow pipe is sleeved with a second positioning end plate, and a brushing mechanism is arranged on the surface of the positioning hollow pipe; by means of the arranged scrubbing mechanism, the position of the cleaning brush shell in the cooling pipe of the heat exchanger can be adjusted during descaling, and the cleaning brush shell can play a good descaling role in the mode that cleaning bristles are attached to the inner wall of the cooling pipe to brush in a reciprocating mode; and meanwhile, through the scraping effect of the descaling mechanism formed by the cleaning brush shell and the cleaning brush bristles, the fluidity of the chemical cleaning agent can be improved, and the effect of pushing the scaling matter outwards is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and in particular relates to a heat exchanger descaling device. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] At present, most of the existing heat exchanger descaling and cleaning devices use the flow of chemical cleaning liquid to descaling and clean the heat exchanger. This method of relying entirely on chemical cleaning agents for cleaning has poor cleaning power. In addition, the chemical cleaning agents need to be completely immersed to remove the scale on the inner wall of the cooling tube of the heat exchanger, and there are disadvantages such as long waiting time for full reaction and large amount of cleaning agent consumption.

[0004] Therefore, a heat exchanger descaling device is needed to solve the problems in the prior art that the heat exchanger relies on chemical cleaning agents, has poor cleaning power, and scale needs to be completely immersed, resulting in a long reaction waiting time and a large amount of cleaning agent. Utility Model Content

[0005] The purpose of the utility model is to provide a heat exchanger descaling device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat exchanger descaling device, comprising a positioning hollow tube, one end of the positioning hollow tube is provided with a first positioning end plate fixed thereto, the surface of the positioning hollow tube is sleeved with a second positioning end plate, the surface of the positioning hollow tube is provided with a brushing mechanism, the brushing mechanism comprises a cleaning brush shell, cleaning bristles, a positioning screw sleeve, a guide slider and a positioning screw, the cleaning brush shell is sleeved on the outside of the positioning hollow tube, the guide slider is fixed on the inner wall of the cleaning brush shell, the positioning screw sleeve is fixed between two guide sliders, and the positioning screw is penetrated into the interior of the positioning hollow tube.

[0007] It should be noted in the solution that an external spiral pattern is provided on the surface of the position-adjusting hollow tube near one end, and the second positioning end plate is threadedly connected to the external spiral pattern of the position-adjusting hollow tube.

[0008] It is further worth mentioning that the interior of the first positioning end plate is hollow, a communication port is provided between the positioning hollow tube and the first positioning end plate, and a liquid injection port is fixed on the upper portion of the first positioning end plate.

[0009] It should be further explained that the inner cavity of the first positioning end plate is communicated with the inner cavity of the position adjusting hollow tube, and the injection port is communicated with the inner cavity of the first positioning end plate.

[0010] As a preferred embodiment, a positioning groove is provided on the surface of the positioning hollow tube, the guide slider is slidably connected to the positioning groove of the positioning hollow tube, a driving motor is fixed to one end surface of the first positioning end plate, and the output shaft of the driving motor is fixed to one end of the positioning screw.

[0011] As a preferred embodiment, the adjusting screw sleeve is threadedly connected to the adjusting screw, a rotating bearing is fixed to the end of the adjusting hollow tube away from the first positioning end plate, the end of the adjusting screw away from the driving motor is arranged at the rotating bearing, and a sealing gasket is fixed to one side surface of the second positioning end plate.

[0012] Compared with the prior art, the heat exchanger descaling device provided by the utility model has at least the following beneficial effects:

[0013] ⑴ Through the brushing mechanism, the position of the cleaning brush shell inside the cooling tube of the heat exchanger can be adjusted during descaling. The cleaning brush shell can play a good descaling role by brushing back and forth against the inner wall of the cooling tube through the cleaning bristles. At the same time, the scraping effect of the descaling mechanism formed by the cleaning brush shell and the cleaning bristles can improve the fluidity of the chemical cleaning agent and achieve the effect of pushing the scale outward.

[0014] ⑵ By setting up the first positioning end plate and the second positioning end plate, the second positioning end plate cooperates with the first positioning end plate to clamp the cooling tube, which can improve the stability of the descaling mechanism during the descaling process. The liquid injection port, the first positioning end plate and the adjusting hollow tube are connected, so that chemical cleaning agents can be added simultaneously during the operation of the descaling mechanism to promote the descaling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of the cross-sectional structure of the position-adjusting hollow tube of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the adjustment screw structure of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the cleaning brush shell structure of the utility model.

[0019] In the figure: 1. Adjustment hollow tube; 2. First positioning end plate; 3. Second positioning end plate; 4. Driving motor; 5. Liquid injection port; 6. External spiral pattern; 7. Adjustment slide groove; 8. Cleaning brush shell; 9. Cleaning brush bristles; 10. Adjustment screw sleeve; 11. Guide slider; 12. Adjustment screw; 13. Rotating bearing; 14. Sealing gasket; 15. Connecting port. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] See also Figure 1-4 The utility model provides a heat exchanger descaling device, including a positioning hollow tube 1, one end of the positioning hollow tube 1 is provided with a first positioning end plate 2 fixed thereto, the surface of the positioning hollow tube 1 is sleeved with a second positioning end plate 3, the surface of the positioning hollow tube 1 is provided with a brushing mechanism, the brushing mechanism includes a cleaning brush shell 8, cleaning bristles 9, a positioning screw sleeve 10, a guide slider 11 and a positioning screw 12, the cleaning brush shell 8 is sleeved on the outside of the positioning hollow tube 1, the guide slider 11 is fixed on the inner wall of the cleaning brush shell 8, the positioning screw sleeve 10 is fixed between the two guide sliders 11, and the positioning screw 12 is penetrated into the interior of the positioning hollow tube 1.

[0022] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that an outer spiral pattern 6 is provided on the surface of the adjusting hollow tube 1 near one end, and the second positioning end plate 3 is threadedly connected to the outer spiral pattern 6 of the adjusting hollow tube 1 .

[0023] Further as Figure 3 As shown, it is worth explaining in detail that the interior of the first positioning end plate 2 is hollow, a communication port 15 is provided between the positioning hollow tube 1 and the first positioning end plate 2 , and a liquid injection port 5 is fixed on the upper portion of the first positioning end plate 2 .

[0024] This solution has the following working process: before use, the positioning hollow tube 1 is inserted into the cooling tube of the heat exchanger, and then the second positioning end plate 3 is screwed into the positioning hollow tube 1 along the outer spiral pattern 6 until the second positioning end plate 3 cooperates with the first positioning end plate 2 to clamp the cooling tube, which can improve the stability of the descaling mechanism during the descaling process. The liquid injection port 5, the first positioning end plate 2 and the positioning hollow tube 1 are connected, so that chemical cleaning agents can be added simultaneously during the operation of the descaling mechanism to promote the descaling effect.

[0025] According to the above working process, it can be known that the second positioning end plate 3 cooperates with the first positioning end plate 2 to clamp the cooling tube, which can improve the stability of the descaling mechanism during the descaling process, and the liquid injection port 5, the first positioning end plate 2 and the adjusting hollow tube 1 are connected, so that chemical cleaning agents can be added synchronously during the operation of the descaling mechanism to promote the descaling effect.

[0026] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth to explain in detail that the inner cavity of the first positioning end plate 2 is communicated with the inner cavity of the adjustment hollow tube 1 , and the injection port 5 is communicated with the inner cavity of the first positioning end plate 2 .

[0027] Further Figure 4 As shown, it is worth mentioning that a positioning groove 7 is provided on the surface of the positioning hollow tube 1, and a guide slider 11 is slidably connected to the positioning groove 7 of the positioning hollow tube 1. A driving motor 4 is fixed to the surface of one end of the first positioning end plate 2, and the output shaft of the driving motor 4 is fixed to one end of the positioning screw 12. When descaling is in progress, the driving motor 4 is turned on, and the driving motor 4 drives the positioning screw 12 to rotate at the rotating bearing 13 at the end of the positioning hollow tube 1. The positioning screw sleeve 10 threadedly connected to the positioning screw 12 drives the cleaning brush shell 8 to slide along the positioning hollow tube 1, so that the position of the cleaning brush shell 8 inside the cooling tube of the heat exchanger can be adjusted. The cleaning brush shell 8 can play a good descaling role by brushing back and forth against the inner wall of the cooling tube by the cleaning bristles 9. At the same time, the scraping effect of the descaling mechanism formed by the cleaning brush shell 8 and the cleaning bristles 9 can improve the fluidity of the chemical cleaning agent and achieve the effect of pushing the scale outward.

[0028] Further Figure 1 As shown, it is worth explaining in detail that the positioning screw sleeve 10 is threadedly connected with the positioning screw 12, a rotating bearing 13 is fixed to the end of the positioning hollow tube 1 away from the first positioning end plate 2, the end of the positioning screw 12 away from the driving motor 4 is arranged at the rotating bearing 13, and a sealing gasket 14 is fixed to the one side surface of the second positioning end plate 3.

[0029] In summary: when descaling is in progress, the position of the cleaning brush shell 8 inside the cooling tube of the heat exchanger can be adjusted, and the cleaning brush shell 8 can play a good descaling role by brushing back and forth with the cleaning bristles 9 against the inner wall of the cooling tube. At the same time, the scraping effect of the descaling mechanism formed by the cleaning brush shell 8 and the cleaning bristles 9 can improve the fluidity of the chemical cleaning agent and achieve the effect of pushing the scale outward; the second positioning end plate 3 cooperates with the first positioning end plate 2 to clamp the cooling tube, which can improve the stability of the descaling mechanism during the descaling process, and the liquid injection port 5, the first positioning end plate 2 and the positioning hollow tube 1 are connected, so that the chemical cleaning agent can be added synchronously during the operation of the descaling mechanism to promote the descaling effect.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat exchanger descaling device, comprising a position-adjusting hollow tube (1), characterized in that: One end of the positioning hollow tube (1) is provided with a first positioning end plate (2) fixed thereto, the surface of the positioning hollow tube (1) is sleeved with a second positioning end plate (3), the surface of the positioning hollow tube (1) is provided with a brushing mechanism, the brushing mechanism comprises a cleaning brush shell (8), cleaning bristles (9), a positioning screw sleeve (10), a guide slider (11) and a positioning screw (12), the cleaning brush shell (8) is sleeved on the outside of the positioning hollow tube (1), the guide slider (11) is fixed on the inner wall of the cleaning brush shell (8), the positioning screw sleeve (10) is fixed between the two guide sliders (11), and the positioning screw (12) is passed through the inside of the positioning hollow tube (1).

2. A heat exchanger descaling device according to claim 1, characterized in that: An external spiral pattern (6) is provided on the surface of the position-adjusting hollow tube (1) near one end, and the second positioning end plate (3) is threadedly connected to the external spiral pattern (6) of the position-adjusting hollow tube (1).

3. A heat exchanger descaling device according to claim 2, characterized in that: The interior of the first positioning end plate (2) is hollow, a communication port (15) is provided between the positioning hollow tube (1) and the first positioning end plate (2), and a liquid injection port (5) is fixed on the upper part of the first positioning end plate (2).

4. A heat exchanger descaling device according to claim 3, characterized in that: The inner cavity of the first positioning end plate (2) is communicated with the inner cavity of the positioning hollow tube (1), and the injection port (5) is communicated with the inner cavity of the first positioning end plate (2).

5. A heat exchanger descaling device according to claim 4, characterized in that: The surface of the positioning hollow tube (1) is provided with a positioning groove (7), the guide slider (11) is slidably connected to the positioning groove (7) of the positioning hollow tube (1), a driving motor (4) is fixed to one end surface of the first positioning end plate (2), and the output shaft of the driving motor (4) is fixed to one end of the positioning screw (12).

6. A heat exchanger descaling device according to claim 5, characterized in that: The positioning screw sleeve (10) is threadedly connected to the positioning screw rod (12); and a rotating bearing (13) is fixed to one end of the positioning hollow tube (1) away from the first positioning end plate (2).

7. A heat exchanger descaling device according to claim 6, characterized in that: One end of the positioning screw (12) away from the driving motor (4) is arranged at the rotating bearing (13), and a sealing gasket (14) is fixed on one side surface of the second positioning end plate (3).

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