Cleaning device for heat exchanger

Abstract

The utility model discloses a cleaning device for a heat exchanger, and relates to the field of cleaning devices for heat exchangers. The cleaning device for the heat exchanger comprises a collecting frame, a cleaning frame is installed on the front side of the top of the collecting frame, a separation net is transversely installed in an inner cavity of the cleaning frame, a water tank is installed on the rear side of the top of the collecting frame, a water pump is installed on the top of the water tank, and the left side of the water pump communicates with a guide pipe. According to the cleaning device for the heat exchanger, firstly, the heat exchanger needing to be cleaned is placed on the separation net, the water pump injects cleaning liquid in the water tank into the conveying pipe through the guide pipe and the water outlet pipe, and the conveying pipe sprays and cleans the heat exchanger below through the spraying pipe and the high-pressure spray head; wastewater generated after cleaning enters the bottom of the cleaning frame through the separation net, is injected into the collecting frame through the flow guide opening and is filtered through the grating filter net, the fiber filter net and the activated carbon filter net.

Description

Technical Field

[0001] This utility model relates to the field of cleaning devices for heat exchangers, and more particularly to a cleaning device for heat exchangers. Background Technology

[0002] A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements. It is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. Cleaning devices are required during the production of heat exchangers.

[0003] Current heat exchanger cleaning devices do not have filtration functions. The wastewater generated after cleaning cannot be filtered and is directly discharged, which will affect the surrounding environment. Furthermore, they are not easy to adjust and will affect the cleaning effect of the heat exchanger.

[0004] Therefore, it is necessary to provide a cleaning device for heat exchangers to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides a cleaning device for heat exchangers, which solves the technical problems of existing heat exchanger cleaning devices that do not have a filtration function, the wastewater generated after cleaning cannot be filtered, and direct discharge will affect the surrounding environment. Furthermore, these devices are not easy to adjust, which will affect the cleaning effect of the heat exchanger.

[0006] To solve the above-mentioned technical problems, this utility model provides a cleaning device for heat exchangers, including a collection frame, a cleaning frame installed on the front side of the top of the collection frame, an isolation net installed horizontally in the inner cavity of the cleaning frame, a water tank installed on the rear side of the top of the collection frame, a water pump installed on the top of the water tank, a conduit connected to the left side of the water pump, the side of the conduit away from the water pump penetrating the inner cavity of the water tank, an outlet pipe connected to the right side of the water pump, the side of the outlet pipe away from the water pump penetrating the top of the rear side of the inner cavity of the cleaning frame and connected to a conveying pipe, a spray pipe connected from left to right at the lower end of the conveying pipe, a high-pressure nozzle connected to the lower end of the spray pipe, a guide port opened at the bottom of the inner cavity of the cleaning frame, the lower end of the guide port extending to the upper end of the inner cavity of the collection frame, a grid filter screen installed vertically on the left side of the inner cavity of the collection frame, a fiber filter screen installed vertically on the right side of the grid filter screen, and an activated carbon filter screen installed vertically on the right side of the fiber filter screen.

[0007] Preferably, a drain pipe is connected to the rear side of the bottom right side of the collection box, and a valve is provided at the top of the drain pipe.

[0008] Preferably, a cylinder is installed on the top of the cleaning frame, and a push plate is installed at the bottom of the cylinder through the piston rod through the inner cavity of the cleaning frame. The bottom of the push plate is fixed to the top of the conveying pipe.

[0009] Preferably, both sides of the front of the washing frame are movably connected to a cabinet door via hinges, and both sides of the front of the collection frame are movably connected to a cabinet door via hinges.

[0010] Preferably, the bottom of the collection frame is provided with mounting bases around its perimeter, and the bottom of the mounting bases is provided with anti-slip pads.

[0011] Preferably, the top and bottom of the grid filter, fiber filter, and activated carbon filter are fixed to the top and bottom of the inner cavity of the collection frame by screws.

[0012] Compared with related technologies, the cleaning device for heat exchangers provided by this utility model has the following advantages:

[0013] This utility model provides a cleaning device for heat exchangers. First, the heat exchanger to be cleaned is placed on an isolation net. A water pump injects cleaning liquid from the water tank into a delivery pipe through a conduit and an outlet pipe. The delivery pipe sprays and cleans the heat exchanger below through a spray pipe and a high-pressure nozzle. The cleaned wastewater enters the bottom of the cleaning frame through the isolation net and is then injected into a collection frame through a guide port. The wastewater is then filtered through a grid filter, a fiber filter, and an activated carbon filter.

[0014] This utility model provides a cleaning device for heat exchangers. The mounting base and anti-slip pad provide support and fixation for the collection frame, and the push plate provides installation and fixation for the conveying pipe. It also facilitates the movement of the conveying pipe by the cylinder through the push plate. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of a cleaning device for a heat exchanger provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the back of the collection frame and water tank structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the cleaning frame structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the collection frame structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the left side of the conveying pipe and spray pipe structure of this utility model.

[0020] The following are the labels in the diagram: 1. Collection frame; 2. Cleaning frame; 3. Isolation net; 4. Water tank; 5. Water pump; 6. Pipe; 7. Water outlet pipe; 8. Delivery pipe; 9. Spray pipe; 10. High-pressure nozzle; 11. Flow guide; 12. Grille filter; 13. Fiber filter; 14. Activated carbon filter; 15. Cylinder; 16. Push plate. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Example 1:

[0023] Please see Figure 1-5 This utility model provides a technical solution: a cleaning device for a heat exchanger, including a collection frame 1, a cleaning frame 2 installed on the front side of the top of the collection frame 1, an isolation net 3 horizontally installed in the inner cavity of the cleaning frame 2, a water tank 4 installed on the rear side of the top of the collection frame 1, a water pump 5 installed on the top of the water tank 4, a conduit 6 connected to the left side of the water pump 5, the side of the conduit 6 away from the water pump 5 penetrating the inner cavity of the water tank 4, and a water outlet pipe 7 connected to the right side of the water pump 5, the side of the water outlet pipe 7 away from the water pump 5 penetrating the cleaning frame. The top of the rear side of the inner cavity 2 is connected to a conveying pipe 8. The lower end of the conveying pipe 8 is connected to a spray pipe 9 from left to right. The lower end of the spray pipe 9 is connected to a high-pressure nozzle 10. A guide port 11 is opened at the bottom of the inner cavity of the cleaning frame 2. The lower end of the guide port 11 extends to the upper end of the inner cavity of the collection frame 1. A grid filter screen 12 is vertically installed on the left side of the inner cavity of the collection frame 1. A fiber filter screen 13 is vertically arranged on the right side of the grid filter screen 12. An activated carbon filter screen 14 is vertically arranged on the right side of the fiber filter screen 13.

[0024] In this implementation plan, the heat exchanger to be cleaned is first placed on the isolation net 3. The water pump 5 is started, and the water pump 5 injects the cleaning solution in the water tank 4 into the delivery pipe 8 through the conduit 6 and the outlet pipe 7. The delivery pipe 8 sprays and cleans the heat exchanger below through the spray pipe 9 and the high-pressure nozzle 10. The cleaned wastewater enters the bottom of the cleaning frame 2 through the isolation net 3 and is injected into the collection frame 1 through the guide port 11. The wastewater is filtered through the grid filter 12, the fiber filter 13 and the activated carbon filter 14. The grid filter 12 blocks larger suspended solids and floating objects in the wastewater and is often used for wastewater pretreatment. The fiber filter 13 uses filter media made of fiber filaments for filtration. The fibers have a complex pore structure, which can effectively remove suspended solids and colloidal impurities. The activated carbon filter 14 uses the well-developed pore structure and strong adsorption capacity of activated carbon to remove organic matter, heavy metal ions and odor substances. It is often used for reclaimed water treatment and advanced treatment where water quality requirements are high.

[0025] Example 2:

[0026] Please see Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: a drain pipe is connected to the rear side of the bottom right side of the collection frame 1, and a valve is provided at the top of the drain pipe; a cylinder 15 is installed at the top of the cleaning frame 2; a push plate 16 is installed at the bottom of the cylinder 15 through a piston rod penetrating the inner cavity of the cleaning frame 2; the bottom of the push plate 16 is fixed to the top of the conveying pipe 8; a cabinet door is movably connected to both sides of the front of the cleaning frame 2 through hinges; a cabinet door is movably connected to both sides of the front of the collection frame 1 through hinges; mounting seats are installed around the bottom of the collection frame 1, and anti-slip pads are provided at the bottom of the mounting seats; the top and bottom of the grid filter 12, fiber filter 13, and activated carbon filter 14 are fixed to the top and bottom of the inner cavity of the collection frame 1 through screws.

[0027] In this embodiment: the cylinder 15 is started by the external controller, the cylinder 15 drives the push plate 16 to move, and the height of the push plate 16 is adjusted by the delivery pipe 8, the spray pipe 9 and the high-pressure nozzle 10, which can be easily adjusted according to the specific situation of the heat exchanger and improve the cleaning effect of the heat exchanger.

[0028] The working principle of the cleaning device for heat exchangers provided by this utility model is as follows:

[0029] Implementation steps for the first innovation point:

[0030] Step 1: First, place the heat exchanger that needs to be cleaned on the isolation net 3, start the water pump 5, and the water pump 5 injects the cleaning solution in the water tank 4 into the delivery pipe 8 through the conduit 6 and the outlet pipe 7. The delivery pipe 8 sprays and cleans the heat exchanger below through the spray pipe 9 and the high-pressure nozzle 10. The wastewater after cleaning enters the bottom of the cleaning frame 2 through the isolation net 3.

[0031] Step 2: Wastewater is injected into the collection frame 1 through the guide port 11. The wastewater is filtered through the bar screen 12, fiber screen 13 and activated carbon screen 14. The bar screen 12 blocks larger suspended solids and floating objects in the wastewater and is often used for wastewater pretreatment. The fiber screen 13 uses filter media made of fiber filaments for filtration. The fibers have a complex pore structure that can effectively remove suspended solids and colloidal impurities.

[0032] Step 3: Activated carbon filter 14 utilizes the well-developed pore structure and strong adsorption capacity of activated carbon to remove organic matter, heavy metal ions and odor substances. It is often used in reclaimed water treatment and advanced treatment where water quality requirements are high.

[0033] Implementation steps for the second innovation point:

[0034] Step 1: Start cylinder 15 through external controller. Cylinder 15 drives push plate 16 to move. Push plate 16 is height-adjusted through conveying pipe 8, spray pipe 9 and high-pressure nozzle 10. This allows for easy adjustment according to the specific conditions of the heat exchanger, improving the cleaning effect of the heat exchanger.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for a heat exchanger, comprising a collection frame (1), characterized in that: A cleaning frame (2) is installed on the front side of the top of the collection frame (1). An isolation net (3) is installed horizontally in the inner cavity of the cleaning frame (2). A water tank (4) is installed on the rear side of the top of the collection frame (1). A water pump (5) is installed on the top of the water tank (4). A conduit (6) is connected to the left side of the water pump (5). The side of the conduit (6) away from the water pump (5) passes through the inner cavity of the water tank (4). A water outlet pipe (7) is connected to the right side of the water pump (5). The side of the water outlet pipe (7) away from the water pump (5) passes through the top of the rear side of the inner cavity of the cleaning frame (2) and is connected to a conveying device. The lower end of the conveying pipe (8) is connected to the spray pipe (9) from left to right. The lower end of the spray pipe (9) is connected to the high-pressure nozzle (10). The bottom of the inner cavity of the cleaning frame (2) is provided with a guide port (11). The lower end of the guide port (11) extends to the upper end of the inner cavity of the collection frame (1). A grid filter screen (12) is vertically installed on the left side of the inner cavity of the collection frame (1). A fiber filter screen (13) is vertically arranged on the right side of the grid filter screen (12). An activated carbon filter screen (14) is vertically arranged on the right side of the fiber filter screen (13).

2. The cleaning device for a heat exchanger according to claim 1, characterized in that, The bottom right side of the collection box (1) is connected to a drain pipe, and a valve is provided at the top of the drain pipe.

3. The cleaning device for a heat exchanger according to claim 1, characterized in that, A cylinder (15) is installed on the top of the cleaning frame (2). The bottom of the cylinder (15) passes through the inner cavity of the cleaning frame (2) through a piston rod and is fitted with a push plate (16). The bottom of the push plate (16) is fixed to the top of the conveying pipe (8).

4. A cleaning device for a heat exchanger according to claim 1, characterized in that, Both sides of the front of the cleaning frame (2) are connected to cabinet doors via hinges, and both sides of the front of the collection frame (1) are connected to cabinet doors via hinges.

5. A cleaning device for a heat exchanger according to claim 1, characterized in that, The bottom of the collection box (1) is equipped with mounting bases around its perimeter, and the bottom of the mounting bases is provided with anti-slip pads.

6. A cleaning device for a heat exchanger according to claim 1, characterized in that, The top and bottom of the grid filter (12), fiber filter (13), and activated carbon filter (14) are fixed to the top and bottom of the inner cavity of the collection frame (1) by screws.

Images