CN215864875U

CN215864875U - Automatic cleaning system

Info

Publication number: CN215864875U
Application number: CN202121152018.5U
Authority: CN
Inventors: 杨铁军; 陈绢鞭
Original assignee: Guangdong Shenling Environmental Systems Co Ltd
Current assignee: Guangdong Shenling Environmental Systems Co Ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-02-18
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to an automatic cleaning system, which is used for rapidly treating heat exchanger scale deposit and comprises a mixing device, a cleaning device and a control device, wherein the mixing device comprises a plurality of cleaning agent storage tanks, a cleaning agent mixing tank and a stirring motor; the cleaning device comprises a main water pipe and a rotary cleaning assembly which are sequentially connected, the main water pipe is connected with an output pipe of the cleaning agent mixing tank, the rotary cleaning assembly extends into gaps among the heat exchange fins and is parallel to the planes of the heat exchange fins, and the rotary cleaning assembly receives the mixed cleaning agent, then rotates and sprays the mixed cleaning agent and washes the mixed cleaning agent up and down along the heat exchange fins; the control device comprises a first control valve, a second control valve and a third control valve, wherein the first control valve is arranged on the input pipe, the second control valve is arranged on the output pipe, and the third control valve is arranged on the main water pipe.

Description

Automatic cleaning system

Technical Field

The utility model relates to the technical field of cleaning of heat exchangers, in particular to an automatic cleaning system.

Background

The heat exchanger is an energy-saving device for realizing heat transfer between materials between two or more fluids with different temperatures, so that heat is transferred from the fluid with higher temperature to the fluid with lower temperature, the temperature of the fluid reaches the index specified by the process, the requirement of process conditions is met, and the heat exchanger is one of main devices for improving the energy utilization rate.

In the prior art, a large number of heat exchangers need to be used in large-scale industrial production such as chemical industry, and the relatively large fin type heat exchanger of heat exchange area is usually selected for use, and this kind of heat exchanger produces the scale deposit easily on heat exchange fin in heat exchange process, influences heat exchange efficiency, and general scaling all is multiple mixture moreover, and the adhesive force is strong, washs the difficulty, and artifical washing working strength is big and inefficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming at least one of the above-mentioned disadvantages of the prior art and providing an automatic cleaning system for rapidly treating heat exchanger scale to ensure the operating efficiency of the heat exchanger.

The utility model adopts the technical scheme that the automatic cleaning system is used for cleaning the heat exchange fins of the heat exchanger and comprises a mixing device, a cleaning device and a control device,

the mixing device comprises a plurality of cleaning agent storage tanks, a cleaning agent mixing tank and a stirring motor, wherein the cleaning agent storage tanks are connected with the cleaning agent mixing tank through corresponding input pipes, a plurality of cleaning agents are input into the cleaning agent mixing tank, and a stirring rod of the stirring motor extends into the cleaning agent mixing tank to stir the plurality of cleaning agents into mixed cleaning agents;

the cleaning device comprises a main water pipe and a rotary cleaning component which are sequentially connected, the main water pipe is connected with an output pipe of the cleaning agent mixing tank, the rotary cleaning component extends into gaps among the heat exchange fins and is parallel to the planes of the heat exchange fins, and the rotary cleaning component receives the mixed cleaning agent, rotates and sprays the mixed cleaning agent and washes the mixed cleaning agent up and down along the heat exchange fins;

the control device comprises a first control valve, a second control valve and a third control valve, the first control valve is installed on the input pipe, the second control valve is installed on the output pipe, and the third control valve is installed on the main water pipe.

The utility model relates to an automatic cleaning system, which adopts mixed cleaning agent mixed with a plurality of cleaning agents to clean the heat exchanger scale deposit, mainly comprising a mixing device, a cleaning device and a control device, wherein the mixing device comprises a plurality of cleaning agent storage tanks respectively storing single cleaning agent, a cleaning agent mixing tank storing mixed cleaning agent and a stirring motor stirring and mixing the plurality of cleaning agents, the cleaning device comprises a main water pipe and a rotary cleaning component, the rotary cleaning component extends into the clearance between heat exchange fins and is parallel to the plane of the heat exchange fins, the cleaning agent storage tanks, the cleaning agent mixing tank, the main water pipe and the rotary cleaning component are sequentially connected, the control device comprises a first control valve, a second control valve and a third control valve, the first control valve is controlled to mix the plurality of cleaning agents according to the scale deposit condition, the second control valve is controlled to supply the cleaning agents according to the requirement in a period, and controlling the third control valve to clean the heat exchange fins. The utility model adopts the mixing device, the cleaning device and the control device to realize the automatic cleaning of the heat exchanger in the whole process; a mixing device and a control device are adopted, corresponding mixed cleaning agents are prepared according to the scaling condition and automatically supplied to the cleaning device according to the requirement at a period; the cleaning device is adopted to rotate quickly to dynamically scour the heat exchange fins from top to bottom, and the heat exchange fins are easier to clean than common water drenches, so that the operating efficiency of the heat exchanger is ensured.

Furthermore, the automatic cleaning system also comprises a liquid drainage device, wherein the liquid drainage device comprises a water outlet and a water tray arranged below the water outlet, and the water outlet and the water tray are respectively arranged below the heat exchange fins and used for discharging the mixed cleaning agent after the heat exchange fins are cleaned.

Further, the liquid discharge device also comprises a water level switch, wherein the water level switch is arranged on one side of the water tray and used for preventing the water tray from being blocked and overflowing.

The automatic cleaning system also comprises a liquid drainage device, wherein the liquid drainage device comprises a water outlet arranged below the heat exchange fins and a water tray arranged below the water outlet, mixed cleaning agents after the heat exchange fins are cleaned are discharged into the water tray through the water outlet, a water level switch is further arranged on one side of the water tray, and when the water level of the water tray is higher than a preset water level, the water level switch is turned on to quickly discharge the mixed cleaning agents in the water tray, so that the water tray is prevented from being blocked and overflowing.

Further, the main water pipe is provided with a water pump for increasing the hydraulic pressure of the mixed detergent.

In the automatic cleaning system, the main water pipe is provided with the water pump, the water pump is used for increasing hydraulic pressure, when mixed cleaning agent flows out of the cleaning agent mixing tank from top to bottom under the inertia effect, and in order to spray and clean the heat exchanger from top to bottom, the mixed cleaning agent needs to be pressurized, and the mixed cleaning agent can flow into the upper part of the heat exchange fins to clean the heat exchanger.

Further, the filter is also installed on the main water pipe, and the filter is installed between the output pipe and the water pump.

In an automatic cleaning system of the present invention, a filter is installed in a main water pipe, and the filter is used for filtering larger particles in a mixed cleaning agent to prevent blockage of a rotary cleaning component or other components in a cleaning device from affecting the cleaning effect of the cleaning system.

Further, rotatory cleaning assembly is rotatory nozzle, rotatory nozzle is equipped with the eccentric orfice, so that rotatory nozzle passes through the eccentric orfice is rotatory to be erupted mix the sanitizer.

In the automatic cleaning system, the rotary cleaning component adopts the rotary spray head with the eccentric hole, and the eccentric hole deviates from the rotation center of the rotary spray head, so that after the rotary spray head receives the mixed cleaning agent, the mixed cleaning agent is in a rotary spray shape due to the eccentric hole on the rotary spray head, and the mixed cleaning agent is flushed from top to bottom along the heat exchange fins.

Furthermore, the cleaning device further comprises a connecting pipe, the connecting pipe is respectively connected with the main water pipe and the rotary cleaning assembly and extends into the gap between the heat exchange fins, and the connecting pipe is an L-shaped pipe.

In the automatic cleaning system, the connecting pipe is L-shaped, the mixed cleaning agent flows into the upper pipe orifice of the L-shaped pipe from the main water pipe and flows to the rotary cleaning assembly from the lower pipe orifice of the L-shaped pipe, so that the rotary cleaning assembly is sprayed in a rotating mode, the rotary cleaning assembly can extend into gaps among the heat exchange fins and is parallel to the plane where the heat exchange fins are located through the structure of the L-shaped pipe, and the rotary cleaning assembly can wash the heat exchange fins from top to bottom.

Furthermore, the cleaning device also comprises a fixing frame which is used for fixing the connecting pipe

Further, the cleaning device further comprises a liquid supply pipe, the liquid supply pipe is respectively connected with the main water pipe and the connecting pipe, and the liquid supply pipe is parallel to the fixing frame and is arranged at two ends of the heat exchange fins of the heat exchanger together with the fixing frame.

In the automatic cleaning system, the cleaning device further comprises a fixing frame and a liquid supply pipe, the liquid supply pipe and the fixing frame are arranged on two sides of the heat exchange fins in parallel, the liquid supply pipe and the fixing frame are arranged above the heat exchange fins, a plurality of connecting pipes are connected between the liquid supply pipe and the fixing frame, mixed detergent flows into the liquid supply pipe from the main water pipe and then is distributed into the plurality of connecting pipes, and cleaning is carried out on each heat exchange fin of the heat exchanger.

Further, the control device further comprises a controller, and the controller is respectively connected with the first control valve, the second control valve and the third control valve and is used for automatically controlling the opening and closing of the first control valve, the second control valve and the third control valve.

In the automatic cleaning system, the first control valve, the second control valve and the third control valve can be controlled manually, or the first control valve, the second control valve and the third control valve can be controlled in a programming way by arranging the controller, and the opening and closing time or the opening threshold size of the automatic control valve and the like can be realized by reasonably designing a program.

Compared with the prior art, the utility model has the beneficial effects that: the utility model relates to an automatic cleaning system, which adopts a mixing device, a cleaning device and a control device to realize automatic cleaning of the whole process of a heat exchanger; a mixing device and a control device are adopted, corresponding mixed cleaning agents are prepared according to the scaling condition and automatically supplied to the cleaning device according to the requirement at a period; the cleaning device is adopted to rotate quickly to dynamically scour the heat exchange fins from top to bottom, and the heat exchange fins are easier to clean than common water drenches, so that the operating efficiency of the heat exchanger is ensured.

Drawings

FIG. 1 is a block diagram of an automatic cleaning system according to the present invention.

FIG. 2 is a schematic diagram of a cleaning apparatus of an automatic cleaning system according to the present invention.

Reference numerals:

10. a mixing device; 11. a detergent storage tank; 12. a detergent mixing tank; 13. a stirring motor; 14. an input tube; 15. an output pipe; 20. a cleaning device (not shown in the figures); 21. a main water pipe; 23. a connecting pipe; 24. rotating the cleaning assembly; 25. a water pump; 26. a filter; 27. a fixed mount; 28. a liquid supply tube; 30. a control device (not shown in the figures); 31. a first control valve; 32. a second control valve; 33. a third control valve; 34. a controller (not shown in the figures); 40. a liquid discharge device; 41. a water outlet; 42. a water pan; 43. a water level switch.

Detailed Description

The drawings are only for purposes of illustration and are not to be construed as limiting the utility model. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Examples

As shown in fig. 1, the automatic cleaning system of the embodiment is used for cleaning heat exchange fins of a heat exchanger, and comprises a mixing device 10, a cleaning device 20, a control device 30 and a liquid drainage device 40,

the mixing device 10 comprises a plurality of detergent storage tanks 11, a detergent mixing tank 12 and a stirring motor 13, wherein the plurality of detergent storage tanks 11 are connected with the detergent mixing tank 12 through corresponding input pipes 14, a plurality of detergents are input into the detergent mixing tank 12, and a stirring rod of the stirring motor 13 extends into the detergent mixing tank 12 to stir the plurality of detergents into mixed detergents;

specifically, in the present embodiment, a plurality of detergent storage tanks 11 are provided, and each detergent storage tank 11 stores a single detergent, and the present embodiment is provided with a detergent mixing tank 12, wherein the plurality of detergent storage tanks 11 are connected to the detergent mixing tank 12 through an input pipe 14, and for the degree and situation of scaling, a plurality of detergents are input into the detergent mixing tank 12 through different proportion configurations and are mixed into different mixed detergents under the stirring action of a stirring rod of a stirring motor 13. Due to the potentially high corrosiveness and chemistry of the cleaning solvent, the cleaning solvent storage tank and the cleaning solvent mixing tank may be made of corrosion resistant materials.

As shown in fig. 2, the cleaning device 20 includes a main water pipe 21 and a rotary cleaning assembly 24 connected in sequence, the main water pipe 21 is connected to the output pipe 15 of the detergent mixing tank 12, the rotary cleaning assembly 24 extends into the gaps between the heat exchange fins and the rotary cleaning assembly 24 is parallel to the planes of the heat exchange fins, the rotary cleaning assembly 24 receives the mixed detergent and then rotationally sprays the mixed detergent to wash up and down along the heat exchange fins;

preferably, the main water pipe 21 is installed with a water pump 25 for increasing the hydraulic pressure of the mixed detergent.

Preferably, the main water pipe 21 is further provided with a filter 26, and the filter 26 is installed between the output pipe 15 and the water pump 25.

Preferably, the spin rinse assembly 24 is a spin head having an eccentric aperture such that the spin head spins out the mixed detergent through the eccentric aperture. Specifically, the rotary cleaning assembly 24 is a structure capable of performing rotary spraying, including but not limited to the rotary spray head 24 described in this embodiment, the rotary spray head 24 is provided with eccentric holes, the rotation center of some holes with higher precision in machining is not coaxial with the rotation center of the part, and has a certain eccentric distance, these holes deviated from the rotation center are called eccentric holes, and the eccentric holes on the rotary spray head 24 enable the rotary spray head to rotatably spray cleaning liquid under the impact of water kinetic energy. Because the rotary spray head 24 is installed in parallel to the plane of the heat exchange fins, the rotary plane of the rotary spray head 24 is perpendicular to the plane of the heat exchange fins, the rotary spray head 24 is in wheel rotation type spraying, the rotary plane can be similar to a circle, the spraying height of the rotary spray head is similar to the diameter of the rotary plane, and in order to ensure that the heat exchange fins can be fully washed from top to bottom, the spraying height of the rotary spray head 24 needs to be greater than or equal to the height of the heat exchange fins.

Preferably, the cleaning device further comprises a connecting pipe 23, the connecting pipe 23 is respectively connected with the main water pipe 21 and the rotary cleaning assembly 24 and extends into the gap between the heat exchange fins, the connecting pipe 23 is an L-shaped pipe, an upper pipe orifice of the L-shaped pipe is connected with the main water pipe 21, and a lower pipe orifice of the L-shaped pipe is connected with the rotary cleaning assembly 24. Specifically, the connecting pipe 23 is a pipe for communicating the main water pipe 21 and the rotary nozzle 24, and the shape of the connecting pipe 23 includes but is not limited to an L shape, and may also be an arc shape or a step shape, and the like, so as to extend into the gaps of the heat exchange fins, ensure that the rotary nozzle 24 is installed in the gaps of the heat exchange fins, and make the rotary nozzle 24 parallel to the plane where the heat exchange fins are located. Evenly be connected with three connecting pipe 23 in every heat transfer fin clearance in this embodiment, three connecting pipe 23 is connected with rotatory nozzle 24 respectively, and the spray range more than or equal to heat transfer fin's of three rotatory nozzle 24 area guarantees that heat transfer fin can be fully washed comprehensively.

Preferably, the cleaning device 20 further comprises a fixing frame 27, and the fixing frame 27 is used for fixing the connecting pipe 23 above the gap between the heat exchange fins. Specifically, the fixed frame 27 is a closed structure, and the mixed detergent cannot flow through the fixed frame 27.

Preferably, the cleaning device 20 further comprises a liquid supply pipe 28, the liquid supply pipe 28 is respectively connected with the main water pipe 21 and the connecting pipe 23, the liquid supply pipe 28 is parallel to the fixing frame, and is arranged at two ends of the heat exchange fin of the heat exchanger with the fixing frame 27.

Specifically, in the present embodiment, the heat exchanger having the heat exchange fins is cleaned by using the cleaning device 20, and the overall structure of the cleaning device 20 is described according to the above-described structure of the main water pipe 21, the connection pipe 23, the rotary nozzle 24, the water pump 25, the filter 26, the fixing frame 27, and the liquid supply pipe 28:

the main water pipe 21 is connected with the output pipe 15 of the detergent mixing tank 12, the filter 26 and the water pump 25 are sequentially installed on the main water pipe 21, the liquid supply pipe 28 and the fixing frame 27 are both erected above the heat exchange fins, and the liquid supply pipe 28 and the fixing frame 27 are parallel to each other and installed on two sides of the heat exchange fins; the main water pipe 21, the liquid supply pipe 28 and the connecting pipe 23 are sequentially connected, the connecting pipe 23 extends into the gap between the heat exchange fins, the lower pipe opening is connected with the rotary spray head 24, and the planes of the rotary spray head 24 and the heat exchange fins are parallel to each other.

Specifically, the principle of dynamically scouring the heat exchange fins of the heat exchanger from top to bottom according to the structure is explained as follows:

firstly, the mixed detergent flows out from the output pipe 15 to the main water pipe 21, is filtered by the filter 26 and pressurized by the water pump 25 and then flows into the liquid supply pipe 28;

secondly, the mixed detergent flows into the plurality of connecting pipes 23 from the liquid supply pipe 28, and finally flows to the rotary spray head 24 installed in the gaps of the heat exchange fins;

finally, the rotary spray head 24 is rapidly and rotationally sprayed under the impact of water kinetic energy, so that the heat exchange fins are dynamically and continuously washed and cleaned from top to bottom.

The control device 30 includes a first control valve 31, a second control valve 32 and a third control valve 33, the first control valve 31 is installed at the input pipe 14, the second control valve 22 is installed at the output pipe 15, and the third control valve 33 is installed at the main water pipe 21.

Preferably, the control device 30 further includes a controller 34, and the controller 34 is connected to the first control valve 31, the second control valve 32 and the third control valve 33, respectively, and is configured to automatically control opening and closing of the first control valve 31, the second control valve 32 and the third control valve 33.

Specifically, the first control valve 31 is installed in the input pipe 14, and can correspondingly control whether to input the cleaning agent or the input time of the cleaning agent or the flow rate of the cleaning agent, etc. by controlling the opening and closing of the valve or the opening and closing time or the opening size of the valve; the second control valve 32 is installed in the output pipe 15, and can correspondingly control whether to input the mixed detergent or the input time of the mixed detergent or the flow rate of the mixed detergent and the like by controlling the opening and closing time of the valve or the opening size of the valve; the third control valve 33 is installed in the liquid supply pipe 28 and can be used for reducing the water pressure requirement and controlling the cooling effect on the heat exchanger, and meanwhile, the water quantity of the mixed cleaning agent can be controlled, and the overflow risk and the like are reduced.

Specifically, the first control valve 21, the second control valve 32 and the third control valve 33 are controlled by the controller 34, the first control valve 31 is correspondingly controlled to configure the mixed detergent with the best descaling effect according to the scaling degree and the scaling condition through programmed design, the second control valve 32 is correspondingly controlled to provide the mixed detergent for cleaning the heat exchanger periodically at regular time and quantity according to needs, and the third control valve 33 is correspondingly controlled to further reduce the water pressure demand and control the cooling effect on the heat exchanger, simultaneously, the water quantity of the mixed detergent can be controlled, the overflow risk is reduced, and the like.

The drainage device 40 comprises a drainage port 41 and a water tray 42 arranged below the drainage port, wherein the drainage port 41 and the water tray 42 are respectively arranged below the heat exchange fins and used for discharging the mixed cleaning agent after the heat exchange fins are cleaned.

Preferably, the drain device 40 further includes a water level switch 43, and the water level switch 43 is installed at one side of the water tray to prevent the water tray 42 from being clogged and overflowing.

Compared with the prior art, the embodiment of the utility model has the beneficial effects that: the automatic cleaning system provided by the embodiment of the utility model adopts the mixing device, the cleaning device and the control device to realize automatic cleaning of the heat exchanger in the whole process; a mixing device and a control device are adopted, corresponding mixed cleaning agents are prepared according to the scaling condition and automatically supplied to the cleaning device according to the requirement at a period; the cleaning device is adopted to rotate quickly to dynamically scour the heat exchange fins from top to bottom, and the heat exchange fins are easier to clean than common water drenches, so that the operating efficiency of the heat exchanger is ensured.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.

Claims

1. An automatic cleaning system is used for cleaning heat exchange fins and is characterized by comprising a mixing device, a cleaning device and a control device,

2. The automatic washing system as claimed in claim 1, further comprising a drain device including a drain opening and a water tray mounted below the drain opening, the drain opening and the water tray being respectively mounted below the heat exchange fins for discharging the mixed detergent after the heat exchange fins are washed.

3. The automatic cleaning system as claimed in claim 2, wherein the drain further comprises a water level switch mounted on a side of the water tray for preventing the water tray from clogging up and overflowing.

4. An automatic cleaning system according to claim 1, characterized in that the main water pipe is equipped with a water pump for increasing the hydraulic pressure of the mixed detergent.

5. The automatic cleaning system according to claim 4, wherein the main water pipe is further provided with a filter, and the filter is installed between the output pipe and the water pump.

6. The automatic cleaning system of claim 1, wherein the rotary cleaning assembly is a rotary spray head having an eccentric aperture such that the rotary spray head rotates to spray the mixed cleaning agent through the eccentric aperture.

7. The automatic cleaning system of claim 1, wherein the cleaning device further comprises a connecting pipe, the connecting pipe is connected with the main water pipe and the rotary cleaning component respectively and extends into the gaps between the heat exchange fins, and the connecting pipe is an L-shaped pipe.

8. The automatic cleaning system of claim 7, wherein the cleaning device further comprises a fixture for securing the connecting tube.

9. The automatic cleaning system of claim 8, wherein the cleaning device further comprises a liquid supply tube, the liquid supply tube is connected to the main water tube and the connecting tube, and the liquid supply tube is parallel to the fixing frame and is disposed at two ends of the heat exchanging fin together with the fixing frame.

10. The automatic cleaning system according to claim 1, wherein the control device further comprises a controller, and the controller is respectively connected to the first control valve, the second control valve and the third control valve, and is configured to automatically control opening and closing of the first control valve, the second control valve and the third control valve.