A rinsing shower device

Abstract

The embodiment of the present disclosure provides a flushing spray device, comprising: an outer frame, one side of the top end of the outer frame is provided with a blower, the other side of the top end of the outer frame is provided with a water pump, the blower and the water pump are communicated through a shunt pipe; one end of the shunt pipe away from the blower and the water pump is provided with an electric reversing valve; one side of the bottom of the inner wall of the outer frame is provided with a cleaning agent tank, the top end of the cleaning agent tank is communicated with a second liquid suction pipe; the other side of the bottom of the inner wall of the outer frame is provided with a water storage tank, the top end of the water storage tank is communicated with a Venturi mixing pipe, the Venturi mixing pipe is communicated with the cleaning agent tank through the second liquid suction pipe, and a precision needle valve is further arranged on the second liquid suction pipe.

Description

Technical Field

[0001] The embodiments disclosed herein belong to the field of heat exchanger technology, specifically relating to a flushing spray device. Background Technology

[0002] Heat exchangers are key equipment in flue gas waste heat recovery systems. After long-term operation, their surfaces are prone to ash and scale buildup, which seriously affects heat exchange efficiency. Regular spray cleaning of heat exchangers can effectively remove dirt, restore heat transfer performance, reduce energy consumption, and extend equipment lifespan.

[0003] The existing rinsing and spraying devices have several shortcomings. Firstly, the cleaning solution concentration is not adjustable, resulting in poor adaptability. The device only injects the pre-mixed cleaning agent solution into the storage tank via the inlet cylinder, making it impossible to dynamically adjust the cleaning solution concentration based on the degree of ash accumulation on the heat exchanger and the composition of the flue gas during the cleaning process. Secondly, rinsing and drying require manual replacement of nozzles and pipes, leading to low efficiency. After rinsing, the high-pressure water nozzle and the second connecting pipe must be removed and repositioned before the blower nozzle and the first connecting pipe are taken out for drying. This process involves numerous steps and is time-consuming.

[0004] Therefore, how to solve the above problems has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The embodiments disclosed herein are intended to at least address one of the technical problems existing in the prior art, and to provide a rinsing spray device.

[0006] One aspect of the embodiments of this disclosure provides a rinsing spray device, comprising: The outer frame has a blower on one side of its top and a water pump on the other side of its top. The blower and the water pump are connected by a diversion pipe. An electric reversing valve is installed at the end of the diversion pipe away from the blower and the water pump. A detergent tank is provided on one side of the bottom of the inner wall of the outer frame, and the top of the detergent tank is connected to a second liquid extraction pipe; a water storage tank is provided on the other side of the bottom of the inner wall of the outer frame, and the top of the water storage tank is connected to a Venturi mixing pipe. The Venturi mixing pipe is connected to the detergent tank through the second liquid extraction pipe, and a precision needle valve is also provided on the second liquid extraction pipe.

[0007] Optionally, the side of the electric reversing valve away from the diversion pipe is connected to a connecting pipe, and the end of the connecting pipe away from the electric reversing valve is connected to a nozzle.

[0008] Optionally, a mounting bracket is movably attached to the bottom of the nozzle, and the mounting bracket is in contact with the contact surface of the nozzle.

[0009] Optionally, a pusher is fixedly connected to the top of the outer frame, and the surface of the pusher is treated with a roughening process.

[0010] Optionally, the end of the water pump away from the diversion pipe is connected to a first suction pipe, which passes through the outer frame and is connected to the Venturi mixing pipe.

[0011] Optionally, the blower, the water pump, and the electric reversing valve are all electrically connected to an external power source and controller via wiring.

[0012] Optionally, the bottom of the outer frame is also provided with casters.

[0013] The beneficial effects of the embodiments of this disclosure include: By incorporating a Venturi mixing tube, a precision needle valve, and a cleaning agent tank, the Venturi mixing tube automatically draws in cleaning agent from the tank using the Venturi effect during the cleaning process. The precision needle valve allows for fine-tuning of the cleaning agent's flow rate, enabling stepless online adjustment of the cleaning solution concentration. This allows the equipment to adjust the cleaning solution ratio according to the different levels of ash and scale buildup on the heat exchanger, avoiding the waste or insufficient cleaning problems associated with premixing to a fixed concentration, thus improving cleaning adaptability and economy.

[0014] By incorporating an electric reversing valve, a diversion pipe, and a connecting pipe, the water and air circuits are integrated at the same outlet. The electric reversing valve allows for one-button switching between flushing and drying modes. This eliminates the need for manual replacement of nozzles and pipes, shortens the transition time between flushing and drying, enables continuous and efficient mobile operation, and improves the efficiency of putting the heat exchanger back into use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a rinsing spray device according to an embodiment of the present disclosure; Figure 2 This is a partial structural schematic diagram of a flushing spray device according to an embodiment of the present disclosure; Figure 3 This is a partial structural schematic diagram of a flushing spray device according to another embodiment of the present disclosure; Figure 4 for Figure 3 Enlarged 3D structural diagram at point A.

[0016] In the diagram, 1. Outer frame; 2. Casters; 3. Water tank; 4. Detergent tank; 5. Nozzle; 6. Blower; 7. Water pump; 8. Hand-push bracket; 9. Diverter pipe; 10. First suction pipe; 11. Electric directional valve; 12. Connecting pipe; 13. Placement rack; 14. Second suction pipe; 15. Precision needle valve; 16. Venturi mixing pipe. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions of this disclosure, the disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed descriptions and accompanying drawings of the following embodiments are used to exemplarily illustrate the principles of this application, but should not be used to limit the scope of this application; that is, this application is not limited to the described embodiments. In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0019] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0020] like Figure 1-4 As shown, a rinsing spray device includes: The outer frame 1 has a blower 6 on one side of its top and a water pump 7 on the other side of its top. The blower 6 and the water pump 7 are connected by a diversion pipe 9. An electric reversing valve 11 is installed at the end of the diversion pipe 9 away from the blower 6 and the water pump 7.

[0021] A detergent tank 4 is provided on one side of the bottom of the inner wall of the outer frame 1, and the top of the detergent tank 4 is connected to a second liquid extraction pipe 14. A water storage tank 3 is provided on the other side of the bottom of the inner wall of the outer frame 1, and the top of the water storage tank 3 is connected to a Venturi mixing pipe 16. The Venturi mixing pipe 16 and the detergent tank 4 are connected through the second liquid extraction pipe 14, and a precision needle valve 15 is also provided on the second liquid extraction pipe 14.

[0022] In this application, by incorporating a Venturi mixing tube, a precision needle valve, and a cleaning agent tank, the Venturi mixing tube automatically draws in cleaning agent from the tank using the Venturi effect during the cleaning process. The precision needle valve precisely adjusts the flow rate of the cleaning agent, achieving online stepless adjustment of the cleaning solution concentration. Therefore, the equipment can adjust the cleaning solution ratio according to the different degrees of ash and scale buildup on the heat exchanger, avoiding the waste or insufficient cleaning problems associated with premixing to a fixed concentration, thus improving cleaning adaptability and economy.

[0023] In some embodiments, the side of the electric reversing valve 11 away from the diversion pipe 9 is connected to a connecting pipe 12, and the end of the connecting pipe 12 away from the electric reversing valve 11 is connected to a nozzle 5.

[0024] In some embodiments, the bottom end of the nozzle 5 is movably attached to a placement bracket 13, and the placement bracket 13 is in contact with the contact surface of the nozzle 5.

[0025] In some embodiments, a pusher 8 is fixedly connected to the top of the outer frame 1, and the surface of the pusher 8 is treated with a roughening process.

[0026] In some embodiments, the end of the water pump 7 away from the diversion pipe 9 is connected to a first extraction pipe 10, which passes through the outer frame 1 and is connected to the Venturi mixing pipe 16.

[0027] In some embodiments, the blower 6, the water pump 7, and the electric reversing valve 11 are all electrically connected to an external power source and controller via wiring.

[0028] In some embodiments, the bottom end of the outer frame 1 is also provided with casters 2.

[0029] Specifically, such as Figures 1 to 4 As shown, the flushing and spraying equipment provided in this application includes an outer frame 1. A blower 6 is fixedly installed on one side of the top of the outer frame 1, and a water pump 7 is fixedly installed on the other side of the top of the outer frame 1. A diversion pipe 9 is connected to one side of both the blower 6 and the water pump 7. An electric reversing valve 11 is fixedly connected to the end of the diversion pipe 9 away from the blower 6 or the water pump 7.

[0030] In this application, the outer frame 1 serves as the support and installation foundation for the entire equipment, used to fix and support components such as the blower 6 and water pump 7. The blower 6 generates high-pressure airflow to dry the cleaned heat exchanger. The water pump 7 extracts and pressurizes the cleaning fluid, sending it to the nozzle 5 for high-pressure spray rinsing. The diversion pipe 9 collects the water or airflow and delivers it to the electric reversing valve 11. The electric reversing valve 11 switches between the water and air paths, allowing the equipment to switch between rinsing and drying modes.

[0031] A detergent tank 4 is fixedly installed on one side of the bottom inner wall of the outer frame 1. A second liquid extraction pipe 14 is connected to the top of the detergent tank 4. A water storage tank 3 is fixedly installed on the other side of the bottom inner wall of the outer frame 1. A Venturi mixing pipe 16 is connected to the top of the water storage tank 3. One side of the Venturi mixing pipe 16 is connected to the detergent tank 4 through the second liquid extraction pipe 14.

[0032] In this application, the detergent tank 4 is used to store a high concentration of detergent concentrate, and the second extraction pipe 14 is used to transport the detergent from the detergent tank 4 to the Venturi mixing pipe 16. The water storage tank 3 is used to store cleaning water and provide a water source for spray rinsing. The Venturi mixing pipe 16 utilizes the Venturi effect to generate negative pressure, automatically drawing in the detergent and mixing it evenly with the water from the water storage tank 3 to form a predetermined cleaning solution concentration.

[0033] A precision needle valve 15 is fixedly installed in the middle of the second suction tube 14.

[0034] In this application, the precision needle valve 15 is used to finely adjust the suction flow rate of the cleaning agent, thereby controlling the mixing ratio of the cleaning fluid and the aqueous solution to adapt to heat exchangers with different degrees of dirt.

[0035] The electric reversing valve 11 is connected to a connecting pipe 12 on the side away from the diversion pipe 9, and a nozzle 5 is fixedly connected to the end of the connecting pipe 12 away from the electric reversing valve 11.

[0036] In this application, the connecting pipe 12 serves as a flexible or rigid connecting pipe to deliver water or air to the nozzle 5. The nozzle 5 is used to spray fluid water or air onto the heat exchanger to achieve rinsing or drying operations.

[0037] The bottom end of the nozzle 5 is movably connected to a placement bracket 13, and the placement bracket 13 is in contact with the nozzle 5.

[0038] In this application, the placement rack 13 is used to stably place and store the nozzle 5 when it is not in use, preventing it from slipping or being damaged. The bottom of the nozzle 5 is movably latched for easy access and return.

[0039] A pusher 8 is fixedly connected to one side of the top of the outer frame 1. The surface of the pusher 8 is rough.

[0040] In this application, the push frame 8 provides operators with a hand grip to push the equipment, improving friction and preventing slippage, and combined with the casters 2, enables the movement and positioning of the equipment.

[0041] The end of the water pump 7 away from the diversion pipe 9 is connected to a first liquid extraction pipe 10, which passes through the top of the outer frame 1 and is connected to the Venturi mixing pipe 16.

[0042] In this application, the first suction tube 10 is used to draw the mixed cleaning solution in the Venturi mixing tube 16 to the water pump 7.

[0043] The blower 6, water pump 7, electric reversing valve 11 and other electrical equipment are all connected to the external 220V AC power supply and PLC controller via long lines and are controlled by the PLC controller.

[0044] In this application, a PLC controller is used to automatically control the start, stop, and switching of the blower 6, water pump 7, and electric reversing valve 11 according to a program, thereby realizing automated spray cleaning and air drying operations. An external 220V AC power supply provides operating power for all electrical equipment.

[0045] Four casters 2 are fixed at the four corners of the bottom of the outer frame 1, and the four casters 2 are arranged symmetrically in pairs.

[0046] In this application, the casters 2 are used to enable flexible movement of the equipment, making it convenient to push the equipment to different heat exchanger positions for cleaning operations.

[0047] The working principle of the device in this application includes: during operation and use, such as Figures 1 to 4 As shown, the operator moves the equipment to the heat exchanger to be cleaned using the push frame 8 and casters 2. The water tank 3 contains cleaning water, and the cleaning agent tank 4 contains a high-concentration cleaning agent concentrate.

[0048] After the water pump 7 is started, the first suction pipe 10 draws water out of the Venturi mixing pipe 16. At the same time, the Venturi mixing pipe 16 generates negative pressure using the Venturi effect, drawing detergent from the detergent tank 4 through the second suction pipe 14. The precision needle valve 15 can finely adjust the suction flow of the detergent, so that water and detergent are evenly mixed in the Venturi mixing pipe 16 in the required proportion to form a cleaning solution.

[0049] Pump 7 delivers the mixed cleaning solution through the distributor pipe 9 to the electric reversing valve 11. At this time, the electric reversing valve 11 switches to the water path open state, and the cleaning solution is then sent to the nozzle 5 through the connecting pipe 12. The operator removes the nozzle 5 to perform high-pressure spray rinsing on the heat exchanger. After rinsing, the electric reversing valve 11 switches to the air path open state, and the blower 6 generates high-pressure airflow, which is sequentially sent through the distributor pipe 9, the electric reversing valve 11, and the connecting pipe 12 to the nozzle 5 for rapid drying of the cleaned heat exchanger. The entire rinsing and drying process can be automatically controlled by a PLC controller according to a program, enabling mobile and highly efficient cleaning operations.

[0050] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A rinsing and spraying device, characterized in that, include: The outer frame has a blower on one side of its top and a water pump on the other side of its top. The blower and the water pump are connected by a diversion pipe. An electric reversing valve is installed at the end of the diversion pipe away from the blower and the water pump. A detergent tank is provided on one side of the bottom of the inner wall of the outer frame, and the top of the detergent tank is connected to a second liquid extraction pipe; a water storage tank is provided on the other side of the bottom of the inner wall of the outer frame, and the top of the water storage tank is connected to a Venturi mixing pipe. The Venturi mixing pipe is connected to the detergent tank through the second liquid extraction pipe, and a precision needle valve is also provided on the second liquid extraction pipe.

2. The rinsing and spraying device according to claim 1, characterized in that, The electric reversing valve is connected to a connecting pipe on the side away from the diverter pipe, and a nozzle is connected to the end of the connecting pipe away from the electric reversing valve.

3. The rinsing and spraying device according to claim 2, characterized in that, The nozzle has a mounting bracket that is movably engaged at its bottom end, and the mounting bracket is in contact with the nozzle's contact surface.

4. The rinsing and spraying device according to claim 1, characterized in that, A pusher is fixedly connected to the top of the outer frame, and the surface of the pusher is treated with a roughening process.

5. A rinsing and spraying device according to claim 1, characterized in that, The end of the water pump away from the diversion pipe is connected to a first liquid extraction pipe, which passes through the outer frame and is connected to the Venturi mixing pipe.

6. The flushing and spraying device according to claim 1, characterized in that, The blower, the water pump, and the electric reversing valve are all electrically connected to an external power source and controller via wiring.

7. A rinsing and spraying device according to claim 1, characterized in that, The bottom of the outer frame is also equipped with casters.

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