A cleaning device for surface cooler fan coil units

Abstract

This application relates to the field of fan coil units and discloses a cleaning device for surface cooler fan coil units. In this application, a mixing tank serves as a mixing container for the cleaning solution, thoroughly mixing clean water and detergent to form a uniform cleaning solution. An electric butterfly valve, through electric control, adjusts the valve opening, thereby controlling the flow rate of detergent from the detergent tank. By controlling the opening time of the electric butterfly valve, the dosage of detergent flowing into the mixing tank is quantitatively controlled. A stirring roller, through rotation, stirs and mixes the clean water and detergent in the tank, ensuring they are fully integrated to form a uniform cleaning solution. A servo motor serves as the power source for the stirring roller's rotation, enabling the stirring of the clean water and detergent inside the mixing tank. By integrating a water supply component for cleaning the surface cooler into this device, continuous cleaning of the fan coil unit surface cooler is possible. Furthermore, the device allows for the quantitative addition and stirring of detergent into the clean water, improving the cleaning effect.

Description

Technical Field

[0001] This application belongs to the field of fan coil unit technology, specifically a cleaning device for surface cooler fan coil units. Background Technology

[0002] A fan coil unit, also known as a fan coil unit, is a terminal device in an air conditioning system. It consists of a small fan, an electric motor, and a coil (air heat exchanger). Chilled water or hot water flows through the coil, exchanging heat with the outside air to cool, dehumidify, or heat the air, thereby regulating indoor air parameters. It is a commonly used terminal device for both cooling and heating.

[0003] However, the existing device does not have an integrated water supply component for cleaning the surface cooler, so it cannot provide conditions for continuous cleaning of the fan coil surface cooler, and it cannot add detergent to the clean water in a measured amount and stir it, thus failing to improve the cleaning effect. Utility Model Content

[0004] The purpose of this application is to provide a cleaning device for fan coil units of cooling coils, in order to solve the problems that the aforementioned device does not integrate a water supply component for cleaning the cooling coil, thus failing to provide conditions for continuous cleaning of the fan coil unit cooling coil and failing to add detergent to the clean water in a quantitative manner and stir it, thereby failing to improve the cleaning effect.

[0005] The technical solution adopted in this application is as follows: it includes a mixing tank, an electric butterfly valve is fixedly installed on the upper surface of the mixing tank, a detergent tank is fixedly installed on the upper surface of the electric butterfly valve, a screw cap is threaded on the upper surface of the detergent tank, a stirring roller is movably installed inside the mixing tank, and a servo motor is fixedly installed through the mixing tank on the outer surface of the stirring roller.

[0006] By adopting the above technical solution, an electric butterfly valve is fixedly installed on the upper surface of the mixing tank, and a detergent tank is fixedly installed on the upper surface of the electric butterfly valve. A screw cap is threaded onto the upper surface of the detergent tank. An agitator roller is movably installed inside the mixing tank, and a servo motor is fixedly installed through the outer surface of the agitator roller. The mixing tank, as a mixing container for the cleaning solution, thoroughly mixes clean water and detergent to form a uniform cleaning solution, and can store a certain amount of cleaning solution for continuous supply during the cleaning process. The electric butterfly valve is electrically controlled to open, close, and adjust the opening degree, thereby precisely controlling the flow rate of detergent from the detergent tank. By controlling the opening time of the electric butterfly valve, the dosage of detergent flowing into the mixing tank is quantitatively controlled. The detergent tank is specifically used to store detergent, providing a stable source of detergent for the cleaning process and ensuring sufficient detergent supply to meet different cleaning tasks. To meet service requirements, cleaning agent can be added to the cleaning agent tank by simply opening the screw cap, ensuring timely replenishment of the cleaning agent dosage. The stirring roller is connected to the mixing tank via ball bearings, allowing the stirring roller to rotate and mix the water and cleaning agent in the tank, ensuring full contact and fusion to form a uniform cleaning solution. This promotes the dispersion of any sediments or clumps in the cleaning solution, preventing them from settling or clumping, and ensuring the uniformity and stability of the cleaning solution. The output shaft of the servo motor is fixedly installed to the stirring roller, serving as the power source for the stirring roller's rotation. This servo motor can stir the water and cleaning agent inside the mixing tank, improving the cleaning effect. By integrating a water supply component for cleaning the surface cooler into the device, continuous cleaning of the fan coil surface cooler can be achieved. It can also quantitatively add cleaning agent to the water and stir it, further enhancing the cleaning effect.

[0007] In a preferred embodiment, a cover plate is hinged to the upper surface of the mixing tank, and a water supply pipe is fixedly installed on the rear side of the upper surface of the mixing tank.

[0008] By adopting the above technical solution, a cover plate is hinged to the upper surface of the mixing tank, and a water supply pipe is fixedly installed on the rear side of the upper surface of the mixing tank. The internal components of the mixing tank can be inspected and maintained by opening the cover plate. The water supply pipe can be connected to an external water supply pump, so that when it is necessary to add clean water to the mixing tank, an external water source can enter the mixing tank.

[0009] In a preferred embodiment, a fan housing is fixedly installed on the lower surface of the mixing tank, and a drain pipe is fixedly installed on the upper surface of the fan housing.

[0010] By adopting the above technical solution, a fan housing is fixedly installed on the lower surface of the mixing box, and a drain pipe is fixedly installed on the upper surface of the fan housing. The fan housing serves as the installation base of the device and is used to accommodate the components required by the equipment. The drain pipe provides a channel for the cleaning liquid to be discharged from inside the fan housing after cleaning.

[0011] In a preferred embodiment, an electric rotating shaft is fixedly installed at the front end of the inner side of the fan housing, and a nozzle pipe is movably installed inside the electric rotating shaft.

[0012] By adopting the above technical solution, an electric rotating shaft is fixedly installed at the front end of the fan casing, and a nozzle pipe is movably installed inside the electric rotating shaft. The combination of the electric rotating shaft and the nozzle pipe allows the electric rotating shaft to drive the nozzle pipe to rotate, so that the nozzle pipe can cover the outer surface of the fan coil unit's surface cooler. The nozzle pipe contains pipes and multiple nozzles. The pipes are used to distribute the cleaning fluid to the nozzles, and the nozzles spray the cleaning fluid into the surface cooler to clean the outer surface of the surface cooler.

[0013] In a preferred embodiment, a metal bellows is fixedly installed on the front outer surface of the mixing tank, and a booster pump is fixedly installed between the nozzle pipe and the metal bellows.

[0014] By adopting the above technical solution, a metal corrugated pipe is fixedly installed on the front outer surface of the mixing tank, and a booster pump is fixedly installed between the nozzle pipe and the metal corrugated pipe. The metal corrugated pipe is used to pressurize the water in the mixing tank to ensure that the cleaning fluid can be delivered to the nozzle pipe with sufficient pressure. The booster pump is used to connect the fixed pipe between the nozzle pipe and the metal corrugated pipe. The booster pump can adjust its own angle when the nozzle pipe is rotated by the electric rotating shaft, thereby ensuring that the cleaning fluid in the metal corrugated pipe can be input into the nozzle pipe.

[0015] In a preferred embodiment, an electric fan is fixedly installed on the rear side of the fan housing, and docking plates are fixedly installed on the left and right outer surfaces of the fan housing.

[0016] By adopting the above technical solution, an electric fan is fixedly installed on the rear side of the fan housing, and docking plates are fixedly installed on the outer surfaces of the left and right sides of the fan housing. The electric fan contains a brushless motor and fan blades. Starting the brushless motor can drive the fan blades to rotate, allowing external air to enter the device through the fan blades, providing conditions for the normal operation of the device. The docking plate contains threaded holes, which provide positions for the installation of the threaded holes. The threaded holes provide conditions for the external screws and nuts of the fan coil unit to be connected to the docking plate, allowing the fan coil unit to be fixed to the ceiling.

[0017] In a preferred embodiment, a surface cooler body is fixedly installed inside the fan housing, and multiple solenoid valves are fixedly installed through the fan housing on the outer surface of the surface cooler body.

[0018] By adopting the above technical solution, the main body of the surface cooler is fixedly installed inside the fan casing. Multiple solenoid valves are fixedly installed through the fan casing on the outer surface of the surface cooler. The surface cooler cooler cools the air passing through it due to the influence of its internal refrigerant. The solenoid valves are set to one inlet and one outlet state respectively. Their outer sides are connected to refrigerant pipes and compressors, etc., which can control the flow rate of refrigerant entering and leaving the interior of the surface cooler cooler.

[0019] In a preferred embodiment, a protective ventilation cover is fixedly installed around the rear side of the fan housing, a water inlet trough is installed on the lower surface of the fan housing, and a junction box is fixedly installed on the right outer surface of the fan housing.

[0020] By adopting the above technical solution, a protective ventilation cover is fixedly installed around the rear side of the fan casing, a water inlet trough is installed on the lower surface of the fan casing, and a junction box is fixedly installed on the right outer surface of the fan casing. The protective ventilation cover is used to protect the outer surface of the electric fan, and an inspection door is hinged inside the protective ventilation cover to facilitate staff to check the status of the fan components. The water inlet trough provides a location for the conversion between the power and signal lines inside the fan coil unit and the external cables. The fan casing and the junction box are installed together by hooks and hanging rings. The upper surface of the junction box is used to prevent the cleaning fluid generated during the operation of the fan coil unit from falling onto the ground, which would require staff to clean the ground later. The right outer surface of the junction box contains a pipe joint for connecting an external pipe to drain the water accumulated inside the junction box.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0022] In this application, the mixing tank serves as a mixing container for the cleaning solution, thoroughly mixing clean water and detergent to form a uniform cleaning solution. An electric butterfly valve, controlled electrically, adjusts the valve opening to control the flow rate of detergent from the detergent tank. By controlling the opening time of the electric butterfly valve, the dosage of detergent flowing into the mixing tank is quantitatively controlled. A stirring roller rotates to mix the clean water and detergent in the tank, ensuring they are fully integrated to form a uniform cleaning solution. A servo motor serves as the power source for the stirring roller's rotation, agitating the clean water and detergent inside the mixing tank. By integrating a water supply component for cleaning the surface cooler into this device, continuous cleaning of the fan coil surface cooler is possible. Furthermore, the device allows for the quantitative addition and stirring of detergent into the clean water, improving the cleaning effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front three-dimensional structure in this application;

[0024] Figure 2This is a schematic diagram of the rear three-dimensional structure in this application;

[0025] Figure 3 This is a schematic diagram of the cleaning component structure in this application;

[0026] Figure 4 This is a schematic diagram of the internal structure of the fan in this application.

[0027] The markings in the diagram are: 1. Mixing tank; 2. Electric butterfly valve; 3. Detergent tank; 4. Screw cap; 5. Agitator roller; 6. Servo motor; 7. Cover plate; 8. Water supply pipe; 9. Fan housing; 10. Drain pipe; 11. Electric rotating shaft; 12. Nozzle pipe; 13. Corrugated metal pipe; 14. Booster pump; 15. Electric fan; 16. Connecting plate; 17. Surface cooler body; 18. Solenoid valve; 19. Protective ventilation cover; 20. Water inlet trough; 21. Junction box. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example

[0029] Reference Figures 1-3The system includes a mixing tank 1, which serves as a mixing container for the cleaning solution. The mixing tank 1 thoroughly mixes water and detergent to form a homogeneous cleaning solution and stores a certain amount of cleaning solution for continuous supply during the cleaning process. An electric butterfly valve 2 is electrically controlled to open, close, and adjust the opening degree, thereby precisely controlling the flow rate of detergent from the detergent tank 3. By controlling the opening time of the electric butterfly valve 2, the dosage of detergent flowing into the mixing tank 1 is quantitatively controlled. The detergent tank 3 is specifically designed to store detergent, providing a stable source of detergent for the cleaning process and ensuring sufficient supply to meet the needs of different cleaning tasks. Detergent can be added to the detergent tank 3 by opening the cap 4, allowing for timely replenishment of the detergent dosage. An agitator roller is also included. The mixing tank 1 and the stirring roller 5 are connected by ball bearings, so that the stirring roller 5 can stir and mix the clean water and cleaning agent in the tank by rotating, so that the two can fully contact and blend to form a uniform cleaning solution. This promotes the dispersion of any sediments or lumps in the cleaning solution, prevents them from settling or clumping, and ensures the uniformity and stability of the cleaning solution. The output shaft of the servo motor 6 is fixedly installed with the stirring roller 5. The servo motor 6 serves as the power source for the rotation and stirring of the stirring roller 5, and can stir the clean water and cleaning agent in the mixing tank 1 to improve the cleaning effect. By integrating a water supply component for cleaning the surface cooler into the device, conditions can be provided for continuous cleaning of the fan coil surface cooler. It can also add cleaning agent to the clean water in a metered amount and stir it to improve the cleaning effect.

[0030] Reference Figure 1 By opening the cover 7, the internal components of the mixing tank 1 can be inspected and maintained. The water supply pipe 8 can be connected to an external water supply pump, allowing external water to enter the mixing tank 1 when it is necessary to add clean water to the mixing tank 1.

[0031] Reference Figure 1 , Figure 2 and Figure 4 The fan housing 9 serves as the mounting base for the device, accommodating the components required by the equipment. The drain pipe 10 provides a channel for the cleaning solution to be discharged from inside the fan housing 9 after cleaning.

[0032] Reference Figure 1 , Figure 3 and Figure 4 The system employs a combination of an electric rotating shaft 11 and a nozzle pipe 12. The electric rotating shaft 11 drives the nozzle pipe 12 to rotate, enabling the nozzle pipe 12 to cover the outer surface of the fan coil unit's surface cooler. The nozzle pipe 12 contains pipes and multiple nozzles. The pipes distribute the cleaning fluid to the nozzles, and the nozzles spray the cleaning fluid into the surface cooler to clean its outer surface.

[0033] Reference Figure 3 and Figure 4 The metal bellows 13 is used to pressurize the water in the mixing tank 1 to ensure that the cleaning fluid can be delivered to the nozzle pipe 12 under sufficient pressure. The booster pump 14 is used to connect the fixed pipe between the nozzle pipe 12 and the metal bellows 13. The booster pump 14 can adjust its own angle when the nozzle pipe 12 is rotated by the electric rotating shaft 11, thereby ensuring that the cleaning fluid in the metal bellows 13 can be input into the nozzle pipe 12.

[0034] Reference Figure 2 and Figure 4 The electric fan 15 contains a brushless motor and fan blades. Starting the brushless motor can drive the fan blades to rotate, allowing external air to enter the device through the fan blades, providing conditions for the normal operation of the device. The docking plate 16 contains threaded holes, which provide a position for the installation of the threaded holes. The threaded holes provide conditions for the external screws and nuts of the fan coil unit to be connected to the docking plate 16, allowing the fan coil unit to be fixed to the ceiling.

[0035] Reference Figure 1 , Figure 2 and Figure 4 The main body 17 of the surface cooler is cooled by the refrigerant inside it. The solenoid valves 18 are set to one inlet and one outlet respectively. Their outer sides are connected to refrigerant pipes and compressors, etc., and can control the flow rate of refrigerant entering and leaving the main body 17 of the surface cooler.

[0036] Reference Figure 1 and Figure 2 The protective ventilation cover 19 is used to protect the outer surface of the electric fan 15, and the inside of the protective ventilation cover 19 is hinged with an inspection door, which allows the staff to easily check the status of the fan components. The water trough 20 provides a location for the conversion between the power and signal lines inside the fan coil and the external cables. The fan housing 9 and the junction box 21 are installed together by hooks and hanging rings. The upper surface of the junction box 21 is used to prevent the cleaning fluid generated during the operation of the fan coil from falling onto the ground, so that the staff will need to clean the ground later. The right outer surface of the junction box 21 contains a pipe joint for connecting an external pipe to drain the water accumulated inside the junction box 21.

[0037] The implementation principle of the cleaning device for a surface cooler fan coil unit according to this application is as follows: A mixing tank 1 serves as a mixing container for the cleaning liquid, thoroughly mixing clean water and cleaning agent to form a uniform cleaning liquid. It also stores a certain amount of cleaning liquid for continuous supply during the cleaning process. An electric butterfly valve 2 is electrically controlled to open, close, and adjust its opening degree, thereby precisely controlling the flow rate of cleaning agent from the cleaning agent tank 3. By controlling the opening time of the electric butterfly valve 2, the dosage of cleaning agent flowing into the mixing tank 1 is quantitatively controlled. The cleaning agent tank 3 is specifically used to store cleaning agent, providing a stable source of cleaning agent for the cleaning process and ensuring sufficient supply to meet the needs of different cleaning tasks. Cleaning agent can be added to the cleaning agent tank 3 by opening the cap 4, allowing for timely replenishment. The cleaning agent dosage is specified. The stirring roller 5 is connected to the mixing tank 1 via ball bearings, allowing the stirring roller 5 to rotate and mix the clean water and cleaning agent in the tank, ensuring full contact and fusion to form a uniform cleaning solution. This promotes the dispersion of any sediments or clumps in the cleaning solution, preventing them from settling or clumping, and ensuring the uniformity and stability of the cleaning solution. The output shaft of the servo motor 6 is fixedly installed with the stirring roller 5, serving as the power source for the rotation and stirring of the stirring roller 5. This allows for the mixing of the clean water and cleaning agent inside the mixing tank 1, improving the cleaning effect. By integrating a water supply component for cleaning the surface cooler into the device, continuous cleaning of the fan coil surface cooler can be achieved. Furthermore, the device allows for the quantitative addition and stirring of cleaning agent into the clean water, further enhancing the cleaning effect.

[0038] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning device for surface cooler fan coil units, comprising a mixing chamber (1), characterized in that: An electric butterfly valve (2) is fixedly installed on the upper surface of the mixing tank (1), a detergent tank (3) is fixedly installed on the upper surface of the electric butterfly valve (2), a screw cap (4) is threaded on the upper surface of the detergent tank (3), a stirring roller (5) is movably installed inside the mixing tank (1), and a servo motor (6) is fixedly installed through the mixing tank (1) on the outer surface of the stirring roller (5).

2. The cleaning device for a surface cooler fan coil unit as described in claim 1, characterized in that: A cover plate (7) is hinged to the upper surface of the mixing tank (1), and a water supply pipe (8) is fixedly installed on the rear side of the upper surface of the mixing tank (1).

3. The cleaning device for a surface cooler fan coil unit as described in claim 1, characterized in that: A fan housing (9) is fixedly installed on the lower surface of the mixing box (1), and a drain pipe (10) is fixedly installed on the upper surface of the fan housing (9).

4. The cleaning device for a surface cooler fan coil unit as described in claim 3, characterized in that: An electric rotating shaft (11) is fixedly installed at the front end of the inner side of the fan housing (9), and a nozzle pipe (12) is movably installed inside the electric rotating shaft (11).

5. The cleaning device for a surface cooler fan coil unit as described in claim 4, characterized in that: A metal bellows (13) is fixedly installed on the front outer surface of the mixing box (1), and a booster pump (14) is fixedly installed between the nozzle pipe (12) and the metal bellows (13).

6. The cleaning device for a surface cooler fan coil unit as described in claim 3, characterized in that: An electric fan (15) is fixedly installed on the rear side of the fan housing (9), and docking plates (16) are fixedly installed on the outer surfaces of the left and right sides of the fan housing (9).

7. The cleaning device for a surface cooler fan coil unit as described in claim 3, characterized in that: The main body of the surface cooler (17) is fixedly installed inside the fan housing (9), and multiple solenoid valves (18) are fixedly installed through the fan housing (9) on the outer surface of the surface cooler (17).

8. The cleaning device for a surface cooler fan coil unit as described in claim 3, characterized in that: A protective ventilation cover (19) is fixedly installed around the rear side of the fan housing (9), a water inlet trough (20) is installed on the lower surface of the fan housing (9), and a junction box (21) is fixedly installed on the right outer surface of the fan housing (9).

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