Cooling pipe cleaning device for furnace door of cycle furnace

Abstract

The utility model relates to a cooling pipe cleaning device of a cycle furnace door, which comprises a cooling loop and a cleaning loop, the cooling loop comprises a water inlet pipe, a cooling pipe and a water outlet pipe, the cooling pipe is embedded on the cycle furnace door, the water inlet pipe and the water outlet pipe are connected at two ends of the cooling pipe through cooling joints, and the cleaning loop comprises a cleaning pipe and a circulating pump. The two ends of the cleaning pipe are connected to the water inlet pipe and the water outlet pipe through valves, the circulating pump is installed in the middle of the cleaning pipe, and a dosing opening is formed in the cleaning loop. Valves at the two ends of the cleaning loop are closed, and the cooling loop acts independently to normally cool the furnace door of the cycle furnace; when the periodic furnace stops working, scale cleaning can be conducted on the cooling pipeline, valves at the two ends of the cleaning loop are opened, the cleaning loop is communicated with the cooling loop, and after the whole loop is filled with water, a circulating pump motor is started to drive water in the pipeline to flow circularly; and chemicals added from the chemical adding port are mixed in the continuously flowing cleaning water flow, so that scale accumulated in the cooling pipe can be thoroughly removed.

Description

Technical Field

[0001] The utility model relates to the technical field of periodic furnace equipment, in particular to a cooling pipe cleaning device for a periodic furnace door. Background Art

[0002] Cycle furnaces are often used in industrial production. Cycle furnaces are cycle operation heat treatment resistance furnaces. Workpieces are put into the furnace in batches, and the heating and heat preservation processes are completed in the furnace. After the workpieces are taken out of the furnace, another batch of workpieces are put into the furnace. In the production process, in order to facilitate the replacement of workpieces, the furnace door of the cycle furnace needs to be cooled quickly.

[0003] In the prior art, a cooling pipeline is embedded in the furnace door of a cycle furnace, and cooling water flows through the cooling pipeline. However, the cooling pipeline is prone to scale when cooling water flows through it for a long time. The scale affects the flow of cooling water in the furnace door of the cycle furnace, thereby causing the cooling effect to deteriorate and affecting production efficiency. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a cooling pipe cleaning device which is convenient for cleaning the scale on the cooling pipe and cleans the pipe fully and thoroughly, thereby ensuring the cooling effect of the cooling pipe on the furnace door of a periodic furnace.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is a cooling pipe cleaning device for a cycle furnace door, comprising a cooling circuit and a cleaning circuit;

[0006] The cooling circuit includes a water inlet pipe, a cooling pipe and a water outlet pipe. The cooling pipe is embedded in the furnace door of the cycle furnace. The water inlet pipe and the water outlet pipe are connected to both ends of the cooling pipe through cooling joints.

[0007] The cleaning circuit includes a cleaning pipe and a circulation pump, the two ends of the cleaning pipe are connected to the water inlet pipe and the water outlet pipe through valves, and the circulation pump is installed in the middle of the cleaning pipe;

[0008] The cleaning circuit is provided with a drug adding port.

[0009] The beneficial effects of the above technical solution are: the cleaning device is easy to use, valves are provided at both ends of the cleaning pipe, and closing the valve does not affect the normal function of the cooling circuit. After the valve is opened, the cleaning circuit is connected to the cooling circuit, and the agent for cleaning scale is added to the dosing port, and enters the cooling circuit through the cleaning circuit, so as to remove the scale in the cooling circuit. After the cleaning circuit is connected to the cooling circuit, the water flow in the pipeline can circulate under the drive of the circulating pump, and the agent mixed in the cleaning water flow can fully contact and react with the pipe wall, and the continuous circulation and flushing can clean the scale in the pipeline more fully and thoroughly, thereby ensuring the cooling effect of the cooling pipe on the furnace door of the periodic furnace.

[0010] Furthermore, a buffer tank is provided on one side of the circulation pump in the cleaning loop, and the dosing port is opened above the buffer tank.

[0011] Beneficial effect: The dosing port and the circulation pump are separated, so that the circulation pump has more options based on the dosing pump.

[0012] Furthermore, a first filter screen is arranged in the buffer tank perpendicular to the water flow direction, and the first filter screen divides the buffer tank into two spaces: a decontamination chamber and a premixing chamber. A drain valve is arranged at the bottom of the decontamination chamber, and the dosing port is opened above the premixing chamber.

[0013] Beneficial effects: On the one hand, the reagent is mixed in the cleaning water flow before entering the circulation pump; on the other hand, excess impurities in the pipeline after the cleaning loop circulation cleaning can be intercepted by the first filter in the impurity removal chamber and then discharged from the pipeline through the drain valve.

[0014] Furthermore, the water flow direction in the circulation pump is consistent with the direction from the impurity removal chamber to the premixing chamber.

[0015] Beneficial effect: Prevents excess impurities in the pipeline from being intercepted by the first filter in the premixing chamber and being unable to be discharged through the impurity removal chamber, thereby blocking the premixing chamber space and affecting the cleaning effect of the cleaning circuit.

[0016] Furthermore, a spiral passage is arranged inside the premixing chamber.

[0017] Beneficial effect: Providing a spiral channel is equivalent to turning and stirring the passing water flow, which can make the medicine fully mixed in the cleaning water flow.

[0018] Furthermore, a second filter screen is arranged in the premixing chamber perpendicular to the water flow direction, and the second filter screen divides the premixing chamber into two areas: a dissolving chamber and a mixing chamber. The dissolving chamber is close to the impurity removal chamber, and the drug addition port is opened above the dissolving chamber.

[0019] Beneficial effects: On the one hand, it ensures that the reagent is fully mixed in the cleaning water flow; on the other hand, a second filter is added between the reagent and the circulation pump to prevent solid granular reagent from directly entering the circulation pump body without being dissolved, affecting the normal operation of the circulation pump or even damaging the circulation pump.

[0020] Furthermore, the drug added through the drug adding port is aminosulfonic acid.

[0021] Beneficial effects: Aminosulfonic acid can be used as a cleaning agent for industrial equipment and can clean the scale accumulated in the cooling pipes.

[0022] A tee is provided at the position where the cleaning pipe is connected to the water inlet pipe and the water outlet pipe, and switch valves are installed at the position where the tee connects the water inlet pipe, the cleaning pipe and the water outlet pipe.

[0023] Beneficial effects: The tee is convenient for connecting the branch pipes, and the switch valve can conveniently control the on-off of the cleaning circuit.

[0024] A pressure gauge is installed on the water inlet pipe.

[0025] Beneficial effect: After the cleaning circuit is connected, it is convenient to monitor the water pressure inside the water inlet pipe, and then determine the timing to close the water inlet valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 yes Figure 1 An enlarged schematic diagram of the middle buffer tank;

[0028] In the figure: 1-water inlet pipe, 2-cooling pipe, 201-cooling joint, 3-water outlet pipe, 4-cleaning pipe, 5-circulating pump, 601-on / off valve, 602-on / off valve, 603-on / off valve, 604-on / off valve, 7-pressure gauge, 8-buffer tank, 81-impurity removal chamber, 82-dissolving chamber, 83-mixing chamber, 801-dosing port, 802-drain valve, 9-first filter screen, 10-second filter screen, 11-cycle furnace door. DETAILED DESCRIPTION

[0029] The cooling tube cleaning device for a cycle furnace door of the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1-2 As shown, a cooling pipe cleaning device for a cycle furnace door of the utility model comprises a cooling circuit and a cleaning circuit, the cooling circuit comprises an inlet pipe 1, a cooling pipe 2 and an outlet pipe 3, the cooling pipe 2 is embedded in the cycle furnace door 11, the inlet pipe 1 and the outlet pipe 3 are connected to the two ends of the cooling pipe 2 through a cooling joint 201, the cleaning circuit comprises a cleaning pipe 4 and a circulating pump 5, the two ends of the cleaning pipe 4 are connected to the inlet pipe 1 and the outlet pipe 3 through a valve, the circulating pump 5 is installed in the middle of the cleaning pipe 4, and a dosing port 801 is provided on the cleaning circuit. When the cycle furnace is working normally, the valves at both ends of the cleaning circuit are closed, and the cooling circuit acts alone, and the cycle furnace is normally The furnace door 11 of the period furnace is cooled; when the period furnace stops working, the cooling pipe can be cleaned of scale, the valves at both ends of the cleaning circuit are opened, the cleaning circuit is connected to the cooling circuit, and after the entire circuit is filled with water, the circulating pump 5 motor is turned on to drive the water in the pipe to circulate; the agent added to the dosing port 801 is aminosulfonic acid, which can be used as a cleaning agent for industrial equipment and can clean the scale accumulated in the cooling pipe 2. The aminosulfonic acid is mixed in the continuously flowing cleaning water flow and is fully washed and contacted with the pipe wall of the cooling pipe 2, thereby completely removing the scale accumulated in the cooling pipe 2, thereby ensuring the cooling effect of the cooling pipe 2 on the furnace door 11 of the period furnace.

[0031] In the present embodiment, a tee is arranged at the position where the cleaning pipe 4 connects the water inlet pipe 1 and the water outlet pipe 3, and switch valves are installed at the positions where the tee connects the water inlet pipe 1, the cleaning pipe 4 and the water outlet pipe 3. When the switch valves at both ends of the cleaning pipe 4 are opened, the cleaning circuit can be connected with the cooling circuit, and a pressure gauge 7 is installed on the water inlet pipe 1 to facilitate monitoring of the water pressure inside the water inlet pipe 1, and then judge the timing of closing the switch valve 601 on the water inlet pipe 1; in the embodiment, in order to allow the circulating pump 5 to have more options, the dosing pump is not directly used, but a buffer tank 8 is arranged on one side of the circulating pump 5 on the cleaning circuit, and the dosing port 801 is opened above the buffer tank 8.

[0032] Specifically, a first filter screen 9 is arranged perpendicular to the water flow direction in the buffer tank 8, and the first filter screen 9 divides the buffer tank 8 into two spaces, namely, a de-impurity chamber 81 and a pre-mixing chamber. A drain valve 802 is arranged at the bottom of the de-impurity chamber 81, and a dosing port 801 is opened above the pre-mixing chamber. A spiral passage is arranged inside the pre-mixing chamber. On the one hand, the agent is mixed in the cleaning water flow before entering the circulation pump 5. The water flow passing through the spiral passage is equivalent to flipping and stirring the passing water flow, so that the agent can be fully mixed in the cleaning water flow; on the other hand, after the cleaning circuit and the cooling circuit are connected, when the mixed water flow passes through the first filter screen 9, the excess impurities in the pipeline can be intercepted by the first filter screen 9 in the de-impurity chamber 81, and then discharged from the pipeline through the drain valve 802; the water flow direction in the circulation pump 5 is consistent with the direction from the de-impurity chamber 81 to the pre-mixing chamber, so as to prevent the excess impurities in the pipeline from being intercepted by the first filter screen 9 in the pre-mixing chamber, and being unable to be discharged through the de-impurity chamber 81, thereby blocking the pre-mixing chamber space and affecting the cleaning effect of the cleaning circuit.

[0033] In this embodiment, considering that aminosulfonic acid is a white rhombic crystal, a second filter screen 10 is arranged in the premixing chamber perpendicular to the water flow direction. The second filter screen 10 divides the premixing chamber into two areas: a dissolving chamber 82 and a mixing chamber 83. The dissolving chamber 82 is close to the impurity removal chamber 81, and the dosing port 801 is opened above the dissolving chamber 82. On the one hand, the dissolving chamber 82 is arranged to ensure that the agent is fully mixed in the cleaning water flow. On the other hand, the second filter screen 10 is added between the agent and the circulation pump 5 to prevent the solid granular agent from directly entering the circulation pump body without being dissolved, affecting the normal operation of the circulation pump 5 or even damaging the circulation pump 5.

[0034] When the utility model is in use, when it is necessary to cool down the furnace door 11 of the cycle furnace, the switch valve 601 of the water inlet pipe 1 and the switch valve 602 of the water outlet pipe 3 are opened, and the cooling circuit operates independently to cool down the furnace door 11 of the cycle furnace. When it is necessary to clean the scale of the cooling pipe, first open the switch valve 601 of the water inlet pipe 1, close the switch valve 602 of the water outlet pipe 3, and at the same time open the switch valve 603 connecting the cleaning pipe 4 to the water inlet pipe 1 and the switch valve 604 connecting the cleaning pipe 4 to the water outlet pipe 3, observe the pressure gauge 7 on the water inlet pipe 1, When the pressure gauge 7 shows that the pipeline is completely filled with water, close the switch valve 601 of the water inlet pipe 1, first add an appropriate amount of aminosulfonic acid into the dissolution chamber 82 through the dosing port 801, turn on the motor of the circulation pump 5, and the water in the entire pipeline circulates under the drive of the circulation pump 5. As the aminosulfonic acid is fully mixed into the cleaning water flow, the wall of the cooling pipe 2 is continuously flushed by the water flow. The aminosulfonic acid can clean all the scale in the cooling pipe 2. After the cleaning is completed, open the drain valve 802 to discharge all the impurities and waste water in the pipeline.

[0035] The cooling pipe cleaning device of the furnace door of a periodic furnace of the utility model has the following advantages: first, the device is simple and convenient for cleaning the scale on the cooling pipe. The connection between the cleaning circuit and the cooling circuit can be directly controlled by the switch valve, which is convenient for operation during equipment maintenance. Second, the cleaning effect of the device on the scale on the cooling pipe 2 is thorough. The water flow is driven by the circulating pump 5 to circulate and flush continuously. The agent added by the dosing port 801 can circulate and contact the wall of the cooling pipe 2 and fully play its role, ensuring that the scale is completely cleaned while reducing the waste of descaling agents. Third, when the cooling pipe 2 cools the furnace door 11 of the periodic furnace, the cleaning circuit can disconnect the independent function of not interfering with the cooling circuit. At the same time, the cleaning circuit is designed with a sewage outlet, which can regularly discharge impurities and wastewater in the pipeline to avoid long-term accumulation affecting the equipment environment.

[0036] In the above embodiment, a buffer tank is provided on one side of the circulation pump in the cleaning circuit, and the dosing port is opened above the buffer tank. In other embodiments, the buffer tank may not be added, and the circulation pump may be directly selected as a dosing pump.

[0037] In the above embodiment, a first filter is arranged in the buffer tank perpendicular to the water flow direction, and the first filter divides the buffer tank into two spaces, namely, a decontamination chamber and a premixing chamber. A drain valve is arranged at the bottom of the decontamination chamber, and a dosing port is opened above the premixing chamber. In other embodiments, the first filter may not be arranged in the buffer tank, and a dosing port may be directly arranged at the top of the buffer tank, and a drain port may be arranged at the bottom.

[0038] In the above-mentioned embodiment, a spiral passage is provided inside the premixing chamber. In other embodiments, the spiral passage may not be provided inside the premixing chamber.

[0039] In the above embodiment, a second filter is arranged in the premixing chamber perpendicular to the water flow direction, and the second filter divides the premixing chamber into two areas: a dissolving chamber and a mixing chamber. The dissolving chamber is close to the impurity removal chamber, and the dosing port is opened above the dissolving chamber. In other embodiments, the second filter may not be arranged in the premixing chamber.

[0040] In the above embodiment, a three-way pipe is set at the position where the cleaning pipe connects the water inlet pipe and the water outlet pipe, and a switch valve is installed at the position where the three-way pipe connects the water inlet pipe, the cleaning pipe and the water outlet pipe. In other embodiments, a three-way valve with a valve switch is directly used at the position where the cleaning pipe connects the water inlet pipe and the water outlet pipe.

[0041] In the above embodiment, a pressure gauge is installed on the water inlet pipe. In other embodiments, the water inlet pipe may not be installed with a pressure gauge.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling tube cleaning device for a cycle furnace door, characterized in that: Including cooling circuit and cleaning circuit; The cooling circuit includes a water inlet pipe, a cooling pipe and a water outlet pipe. The cooling pipe is embedded in the furnace door of the cycle furnace. The water inlet pipe and the water outlet pipe are connected to both ends of the cooling pipe through cooling joints. The cleaning circuit includes a cleaning pipe and a circulation pump, the two ends of the cleaning pipe are connected to the water inlet pipe and the water outlet pipe through valves, and the circulation pump is installed in the middle of the cleaning pipe; The cleaning circuit is provided with a drug adding port.

2. The cooling tube cleaning device for a cycle furnace door according to claim 1 is characterized in that: A buffer tank is arranged on one side of the circulation pump in the cleaning loop, and the dosing port is opened above the buffer tank.

3. The cooling tube cleaning device for a cycle furnace door according to claim 2 is characterized in that: A first filter screen is arranged in the buffer tank perpendicular to the water flow direction, and the first filter screen divides the buffer tank into two spaces, namely, a decontamination chamber and a premixing chamber. A drain valve is arranged at the bottom of the decontamination chamber, and the dosing port is opened above the premixing chamber.

4. The cooling tube cleaning device for a cycle furnace door according to claim 3 is characterized in that: The water flow direction in the circulation pump is consistent with the direction from the impurity removal chamber to the premixing chamber.

5. The cooling tube cleaning device for a cycle furnace door according to claim 3 is characterized in that: A spiral passage is arranged inside the premixing chamber.

6. The cooling tube cleaning device for a cycle furnace door according to claim 3 is characterized in that: A second filter screen is arranged in the premixing chamber perpendicular to the water flow direction, and the second filter screen divides the premixing chamber into two areas: a dissolving chamber and a mixing chamber. The dissolving chamber is close to the impurity removal chamber, and the drug addition port is opened above the dissolving chamber.

7. The cooling tube cleaning device for a cycle furnace door according to claim 1 is characterized in that: The drug added by the drug adding port is aminosulfonic acid.

8. The cooling tube cleaning device for a cycle furnace door according to claim 1 is characterized in that: A tee is provided at the position where the cleaning pipe is connected to the water inlet pipe and the water outlet pipe, and switch valves are installed at the position where the tee connects the water inlet pipe, the cleaning pipe and the water outlet pipe.

9. The cooling tube cleaning device for a cycle furnace door according to claim 1 is characterized in that: A pressure gauge is installed on the water inlet pipe.

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