A condenser descaling cleaning device

Abstract

The utility model relates to condenser descaling technical field, specifically disclose a condenser descaling cleaning device, including water tank and circulating pump, and the water tank intercommunication of circulating pump, is provided with the water outlet pipeline on the circulating pump, the water outlet pipeline is connected with condenser, is provided with first stop valve and thermocouple on the water outlet pipeline, and first stop valve can disconnect the water outlet pipeline and condenser intercommunication, and thermocouple can detect water temperature, be provided with the drain valve, magnetic flap liquid level meter, electric heater, overflow hole and dosing hole on the water tank, and the drain valve can discharge sewage, and the electric heater is set up in the side bottom of water tank, the overflow hole is set up in the upper portion of water tank, and the dosing hole is set up in the top of water tank, be provided with the backwater pipeline on condenser, be provided with second stop valve and filter screen on the backwater pipeline, and second stop valve can disconnect the backwater pipeline and condenser, and the filter screen can filter impurity. The utility model discloses the purpose lies in solving how to clean the technical problem of condenser.

Description

Technical Field

[0001] This utility model relates to the field of condenser descaling technology, and specifically discloses a condenser descaling and cleaning device. Background Technology

[0002] In waste heat power generation systems, after long-term operation, fouling easily forms on the inner surface of the condenser tubes, severely affecting heat exchange efficiency. Currently, manual acid cleaning methods have many drawbacks, including high safety risks to personnel and equipment, low cleaning efficiency, and high labor intensity. Therefore, a more efficient and safe cleaning solution is urgently needed. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a condenser descaling and cleaning device to solve the technical problem of how to clean condensers.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A condenser descaling and cleaning device includes a water tank and a circulating pump. The circulating pump is connected to the water tank via a connecting pipe. The circulating pump is equipped with a water outlet pipe, which is connected to the condenser. The water outlet pipe is equipped with a first shut-off valve and a thermocouple. The first shut-off valve can disconnect the water outlet pipe from the condenser, and the thermocouple can detect the water temperature. The water tank is equipped with an external drain valve, a magnetic level gauge, an electric heater, an overflow hole, and a chemical dosing hole. The external drain valve can discharge wastewater. The electric heater is located at the bottom side of the water tank. The overflow hole is located at the top of the water tank, and the chemical dosing hole is located at the top of the water tank. The condenser is equipped with a return water pipe, which is connected to the water tank. The return water pipe is equipped with a second shut-off valve and a filter screen. The second shut-off valve can disconnect the return water pipe from the condenser, and the filter screen can filter impurities.

[0006] In this system, a circulating pump pumps the solution from the water tank into the condenser. The solution has a cleaning function, dissolving scale within the condenser. Simultaneously, the circulating pump also pumps water back to the tank for circulation. A magnetic level gauge displays the water level in the tank. An electric heater heats the water to 60°C. A thermocouple detects the water temperature; if the temperature is below the target, the heater can be restarted. An overflow port allows water to overflow when the level is too high. A dosing port facilitates the addition of citric acid to adjust the pH. An external drain valve discharges wastewater. The first and second shut-off valves disconnect the water tank from the outlet and return water pipes.

[0007] Optionally, a citric acid solution is added to the water tank, with the tank temperature maintained at 40-60℃ and the solution pH between 3 and 5. Citric acid is an organic acid with unique chemical properties. Its carboxyl group can undergo a complexation reaction with metal oxides to form water-soluble complexes; simultaneously, it also has good dissolving power for calcium and magnesium scale. This complexing and dissolving effect lays the chemical foundation for removing scale from the condenser tubes.

[0008] Optionally, a drain pipe is provided on the return water pipe. The drain pipe is rectangular in shape, and its two sides are connected to the return water pipe via flanges. The filter screen is installed inside the drain pipe, and a drain outlet is provided at the bottom of the drain pipe, with a plug on the drain outlet. In this solution, the plug can be removed, and then the filter screen can be cleaned to avoid excessive dirt clogging the filter screen.

[0009] Optionally, the lower end of the filter screen is hinged inside the drain pipe, and the upper end of the plug is provided with a connecting steel wire, the top of which is connected to the top of the filter screen. With this design, when the plug is pulled out, the filter screen can be flipped downwards to allow the dirt to be flushed out by the water flow.

[0010] Optionally, the connecting wire is elastic.

[0011] Optionally, the connecting wire includes two rigid sections and one elastic section. The two rigid sections are respectively disposed on the plug and the filter screen, and the elastic section is disposed between and connected to the two rigid sections. Using this design, the connecting wire can effectively push the filter screen back to its original position, and the filter screen can automatically reset under the impact of water flow.

[0012] Optionally, the return water pipe is connected to the lower part of the water tank, and the outlet water pipe is connected to the middle part of the water tank. A buffer zone is provided at the bottom of the water tank. The buffer zone includes a vertical buffer plate, a horizontal isolation plate, and a horizontal isolation net. The buffer plate is located at the connection between the return water pipe and the water tank. The isolation plate is horizontally set at the lower part of the water tank with a gap between it and the buffer plate. The isolation net is horizontally set at the lower part of the water tank and above the isolation plate. With this design, the circulating water flow is blocked and buffered by the buffer plate, reducing the flow velocity and allowing dirt to remain below the isolation plate for easier subsequent cleaning. The isolation net also isolates some dirt, preventing it from re-entering the condenser.

[0013] The working principle and beneficial effects of this solution are as follows:

[0014] This solution reduces costs; it adopts online circulating cleaning, which improves cleaning efficiency; it avoids manual acid washing, which reduces safety risks to personnel and equipment; and it has good economic benefits and practical value.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0017] Figure 2 A partial structural diagram of the water tank and circulating pump;

[0018] Figure 3 This is a partial structural cross-sectional view of the water tank.

[0019] The following are the markings in the attached diagram: Circulation pump 1, Connecting pipe 2, Outlet pipe 3, Water tank 4, Dosing hole 5, Overflow hole 6, Magnetic level gauge 7, Return water pipe 8, Flange 9, Sewage pipe 10, Condenser 11, Electric heater 12, Isolation net 13, Isolation plate 14, Buffer plate 15, External drain valve 16, Filter screen 17, Plug 18, Rigid section 19, Elastic section 20. Detailed Implementation

[0020] The following detailed description illustrates the specific implementation method:

[0021] Example

[0022] A descaling and cleaning device for a condenser 11, such as Figures 1-3 As shown, it includes a water tank 4 and a circulation pump 1.

[0023] The circulating pump 1 is connected to the water tank 4 via a connecting pipe 2. The connection point between the connecting pipe 2 and the water tank 4 is located in the middle of the water tank 4. The circulating pump 1 is equipped with an outlet pipe 3, which is connected to the condenser 11. The outlet pipe 3 is equipped with a first shut-off valve and a thermocouple. The first shut-off valve can disconnect the outlet pipe 3 from the condenser 11, and the thermocouple can detect the water temperature. The condenser 11 is equipped with a return water pipe 8, which is connected to the circulating pump 1. The return water pipe 8 is equipped with a second shut-off valve and a filter screen 17. The second shut-off valve can disconnect the return water pipe 8 from the condenser 11, and the filter screen 17 can filter impurities. The return water pipe 8 is equipped with a drain pipe 10, which is rectangular in shape. Both sides of the drain pipe 10 are connected to the return water pipe 8 via flanges 9. The filter screen 17 is installed inside the drain pipe 10, and a drain outlet is located at the bottom of the drain pipe 10, in front of the filter screen 17. A plug 18 is installed on the drain outlet. The lower end of the filter screen 17 is hinged inside the drain pipe 10, and the upper end of the plug 18 is provided with a connecting steel wire, the top of which is connected to the top of the filter screen 17. The connecting steel wire is elastic and includes two rigid sections 19 and one elastic section 20. The two rigid sections 19 are respectively provided on the plug 18 and the filter screen 17, and the elastic section 20 is provided between the two rigid sections 19 and connected to them.

[0024] The water tank 4 is equipped with an external drain valve 16, a magnetic level gauge 7, an electric heater 12, an overflow hole 6, and a dosing hole 5. The external drain valve 16 can discharge sewage. The electric heater 12 is located at the bottom side of the water tank 4, the overflow hole 6 is located at the top of the water tank 4, and the dosing hole 5 is located at the top of the water tank 4. Citric acid solution is added to the water tank 4, the temperature of the water tank 4 is 40-60℃, and the pH value of the solution in the water tank 4 is between 3 and 5. The return water pipe 8 is connected to the lower part of the water tank 4, and the outlet water pipe 3 is connected to the middle part of the water tank 4. A buffer zone is set at the bottom of the water tank 4, which includes a vertical buffer plate 15, a horizontal isolation plate 14, and a horizontal isolation net 13. The buffer plate 15 is located at the connection between the return water pipe 8 and the water tank 4, with a certain distance between the buffer plate 15 and the connection point. The isolation plate 14 is horizontally set at the lower part of the water tank 4 and leaves a gap between it and the buffer plate 15. The isolation net 13 is horizontally set at the lower part of the water tank 4 and is located above the isolation plate 14. The external drain valve 16 is located between the buffer plate 15 and the return water pipe 8 and the water tank 4.

[0025] In practice:

[0026] Preparation: Check whether the water tank 4, circulating water pump, electric heater 12 and other components are in normal working order. Pour an appropriate amount of clean water into the water tank 4, turn on the circulating pump 1, and check the system's sealing and circulation.

[0027] Solution preparation: Add an appropriate amount of citric acid to water tank 4 through dosing port 5 to prepare a cleaning solution of suitable concentration.

[0028] Start cleaning: Turn on circulation pump 1 and heater, adjust the flow rate of circulation pump 1 to circulate the cleaning solution in condenser 11, monitor parameters such as temperature and pH value in real time, and adjust as needed.

[0029] End of treatment: After cleaning, discharge and neutralize the waste liquid as required, rinse the system with clean water, and finally check all components to restore the system to normal operation.

[0030] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics in the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or its practicality.

Claims

1. A condenser descaling and cleaning device, characterized in that: The system includes a water tank and a circulating pump. The circulating pump is connected to the water tank via a connecting pipe. The circulating pump has an outlet pipe that connects to a condenser. The outlet pipe is equipped with a first shut-off valve and a thermocouple. The first shut-off valve disconnects the outlet pipe from the condenser, and the thermocouple detects the water temperature. The water tank is equipped with an external drain valve, a magnetic level gauge, an electric heater, an overflow hole, and a chemical dosing hole. The external drain valve discharges wastewater. The electric heater is located at the bottom side of the water tank. The overflow hole is located at the top of the water tank, and the chemical dosing hole is located at the top of the water tank. The condenser has a return water pipe that connects to the water tank. The return water pipe is equipped with a second shut-off valve and a filter screen. The second shut-off valve disconnects the return water pipe from the condenser, and the filter screen filters impurities.

2. The condenser descaling and cleaning device according to claim 1, characterized in that: Citric acid solution is added to the water tank, the water tank temperature is 40-60℃, and the pH value of the solution in the water tank is between 3 and 5.

3. The condenser descaling and cleaning device according to claim 2, characterized in that: A sewage pipe is installed on the return water pipe. The sewage pipe is rectangular in shape. Both sides of the sewage pipe are connected to the return water pipe through flanges. The filter screen is installed inside the sewage pipe. A sewage outlet is provided at the bottom of the sewage pipe, and a plug is provided on the sewage outlet.

4. The condenser descaling and cleaning device according to claim 3, characterized in that: The lower end of the filter screen is hinged inside the sewage pipe, and the upper end of the plug is provided with a connecting steel wire, the top of which is connected to the top of the filter screen.

5. A condenser descaling and cleaning device according to claim 4, characterized in that: The connecting steel wire is elastic.

6. The condenser descaling and cleaning device according to claim 5, characterized in that: The connecting wire includes two rigid sections and one elastic section. The two rigid sections are respectively disposed on the plug and the filter screen, and the elastic section is disposed between the two rigid sections and connected to the two rigid sections.

7. A condenser descaling and cleaning device according to claim 6, characterized in that: The return water pipe is connected to the lower part of the water tank, and the outlet water pipe is connected to the middle part of the water tank. A buffer zone is provided at the bottom of the water tank. The buffer zone includes a vertical buffer plate, a horizontal isolation plate, and a horizontal isolation net. The buffer plate is located at the connection between the return water pipe and the water tank. The isolation plate is horizontally set at the lower part of the water tank and a gap is left between it and the buffer plate. The isolation net is horizontally set at the lower part of the water tank and above the isolation plate.

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