Waste heat recycling device for industrial wastewater treatment

Abstract

The utility model relates to the technical field of heat exchange equipment, in particular to a waste heat recycling device for industrial wastewater treatment. The waste heat recycling device for industrial wastewater treatment comprises a working plate which is an installation carrier of parts; the vacuum tank is connected to the front side of the upper side surface of the working plate, and the vacuum tank is communicated with a conveying pipe; and the centrifugal pump is installed on the upper side face of the working plate, and a conveying pipe on the vacuum tank is communicated with a water inlet in the centrifugal pump. Waste water is pumped out of the vacuum tank by starting the centrifugal pump and conveyed to the automatic filter, the first filter screen and the second filter screen to be filtered, the third conveying pipe can avoid continuous filtering operation when the first filter screen goes wrong, the waste water enters the heat exchange main machine through the connecting pipe to be subjected to heat exchange, waste water waste heat recovery is achieved, and energy is saved. The insulating layer can improve heat exchange efficiency and maintain stable water temperature.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a waste heat recovery and utilization device for industrial wastewater treatment. Background Technology

[0002] With the escalating global energy crisis and the gradual depletion of traditional energy resources, energy conservation has become a major challenge facing society today. In the process of wastewater treatment, wastewater contains a large amount of heat energy, which will be wasted if it is not effectively utilized. Therefore, wastewater treatment waste heat recovery and utilization devices have emerged, which can recover and reuse the heat energy in wastewater, thereby improving energy utilization efficiency and reducing energy waste.

[0003] During wastewater treatment, wastewater may contain a large amount of suspended solids, particulate matter, and organic matter. When these impurities pass through an automatic filter, they may be captured by the filter screen and accumulate on or inside the screen, causing the screen to become clogged. Over time, this accumulation will gradually worsen, seriously affecting the filter's filtration efficiency and normal operation.

[0004] In conclusion, there is an urgent need for a waste heat recovery and utilization device for industrial wastewater treatment to solve the above problems. Utility Model Content

[0005] In order to overcome the disadvantage that impurities can easily cause filter clogging when passing through automatic filters, this utility model provides a waste heat recovery and utilization device for industrial wastewater treatment.

[0006] A waste heat recovery and utilization device for industrial wastewater treatment includes a working plate as a mounting carrier for components; a vacuum tank connected to the front side of the working plate, with a conveying pipe connected to the vacuum tank; a centrifugal pump installed on the upper side of the working plate, with the conveying pipe on the vacuum tank connected to the inlet of the centrifugal pump; an automatic filter installed on the upper side of the working plate, with the centrifugal pump located between the vacuum tank and the automatic filter; a first conveying pipe connected to the outlet of the centrifugal pump, with the other end of the first conveying pipe connected to the automatic filter; a backwash cleaning system installed on the lower right side of the automatic filter; a first valve installed at the connection between the backwash cleaning system and the automatic filter; a heat exchange host installed on the rear side of the upper side of the working plate, with the rear side of the backwash cleaning system connected to the heat exchange host; and a control cabinet installed on the front side of the upper side of the working plate. The vacuum tank is located on the left side and is electrically connected to the centrifugal pump, the automatic filter, the heat exchange unit, and the backwash cleaning system. A connecting pipe connects to the lower part of the heat exchange unit and the automatic filter on opposite sides. A first drain pipe connects to the rear connection point of the heat exchange unit and the backwash cleaning system, and is connected to the outlet of the heat exchange unit. A second conveying pipe connects to the inlet of the heat exchange unit. A second drain pipe connects to the outlet at the lower end of the automatic filter. A second valve is installed on the second drain pipe. A first filter screen is connected inside the automatic filter. A second filter screen is symmetrically connected inside the automatic filter, located below the first filter screen. A third drain pipe connects to another outlet on the heat exchange unit. A third valve is installed on the first drain pipe. An auxiliary component is installed on the automatic filter.

[0007] In one embodiment, the system further includes an auxiliary component with auxiliary functions, comprising a third delivery pipe connected to another outlet of the automatic filter; a storage frame connected to the outer ring of the automatic filter, the other end of the third delivery pipe connected to the inlet of the storage frame, an output pipe connected to the lower side of the storage frame, the output pipe being connected to the automatic filter; a third filter screen connected inside the storage frame; and a resilient valve installed on the third delivery pipe.

[0008] In one embodiment, it further includes an insulation layer, which is detachably connected to the heat exchange host at even intervals, with the inner ring of the insulation layer fitting against the pipe connection of the heat exchange host; a protective shell, connected to the outer ring of the insulation layer, with four locking rods on one side and four locking slots on the other side of the protective shell, the locking rods on the protective shell being engaged in the locking slots on the other protective shell; and a first magnet, connected to the locking slot on the protective shell, with the other side of the first magnet being magnetically connected to the locking rod on the other protective shell.

[0009] In one embodiment, a second magnet is also included, which is detachably connected to the first delivery pipe.

[0010] In one embodiment, the height of the second filter screen in the lower part of the automatic filter is lower than the height of the third filter screen.

[0011] In one embodiment, the aperture of the first filter and the third filter is larger than the aperture of the second filter.

[0012] This utility model has the following advantages:

[0013] This invention uses a centrifugal pump to extract wastewater from a vacuum tank and deliver it to an automatic filter. The first and second filter screens filter the wastewater, and the third delivery pipe prevents filtration from continuing if the first filter screen malfunctions. The wastewater then enters a heat exchange host through a connecting pipe for heat exchange, thus recovering waste heat. The insulation layer improves heat exchange efficiency and maintains a stable water temperature. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the working plate, vacuum tank, and centrifugal pump of this utility model.

[0016] Figure 3 This is a cross-sectional view of the automatic filter, storage frame, and resilient valve components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the heat exchange host, connecting pipe and protective shell of this utility model.

[0018] Figure 5 This is a cross-sectional view of the insulation layer and protective shell and other components of this utility model.

[0019] In the attached diagram, the following are the reference numerals: 1. Working plate; 101. Vacuum tank; 2. Centrifugal pump; 3. Automatic filter; 4. Heat exchange host; 5. Control cabinet; 6. Backwash cleaning system; 7. First conveying pipe; 8. First drain pipe; 9. Second conveying pipe; 10. Second drain pipe; 11. First filter screen; 12. Second filter screen; 14. Third conveying pipe; 15. Storage frame; 16. Third filter screen; 17. First valve; 18. Second valve; 19. Connecting pipe; 20. Flexible valve; 22. Third drain pipe; 23. Third valve; 24. Insulation layer; 25. Protective shell; 26. First magnet; 27. Slot; 28. Second magnet. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0021] Example: A waste heat recovery and utilization device for industrial wastewater treatment, such as... Figures 1-3 As shown, the system includes a work plate 1, a vacuum tank 101, a centrifugal pump 2, an automatic filter 3, a heat exchange host 4, a control cabinet 5, a backwash cleaning system 6, a first conveying pipe 7, a first drain pipe 8, a second conveying pipe 9, a second drain pipe 10, a first filter screen 11, a second filter screen 12, a first valve 17, a second valve 18, a connecting pipe 19, a third drain pipe 22, a third valve 23, and auxiliary components. The work plate 1 serves as the mounting carrier for the parts. The vacuum tank 101 is connected to the front of the upper side of the work plate 1, and a conveying pipe is connected to the vacuum tank 101. The upper side of the work plate 1 is equipped with... Centrifugal pump 2 is connected to the inlet of vacuum tank 101 via a delivery pipe. An automatic filter 3 is installed on the upper side of working plate 1. Centrifugal pump 2 is located between vacuum tank 101 and automatic filter 3. A first delivery pipe 7 is connected to the outlet of centrifugal pump 2, and the other end of the first delivery pipe 7 is connected to automatic filter 3. A backwash cleaning system 6 is installed on the lower right side of automatic filter 3. A first valve 17 is installed at the connection between backwash cleaning system 6 and automatic filter 3. A heat exchange host 4 is installed on the rear side of the upper side of working plate 1. The rear side of backwash cleaning system 6 is connected to heat exchange host 4. A control cabinet 5 is installed on the front side of the upper side of the vacuum tank 101. The control cabinet 5 is located on the left side of the vacuum tank 101 and is electrically connected to the centrifugal pump 2, automatic filter 3, heat exchange host 4, and backwash cleaning system 6. A connecting pipe 19 is connected to the lower part of the heat exchange host 4 and the automatic filter 3 facing each other. A first drain pipe 8 is connected to the rear connection of the heat exchange host 4 and the backwash cleaning system 6. The first drain pipe 8 is connected to the outlet of the heat exchange host 4. A second conveying pipe 9 is connected to the upper inlet of the heat exchange host 4. A second drain pipe 10 is connected to the lower outlet of the automatic filter 3. A second... The valve 18, the automatic filter 3 has a first filter screen 11 welded inside, the automatic filter 3 has a second filter screen 12 welded symmetrically on the top and bottom, the second filter screen 12 is located below the first filter screen 11, the heat exchange host 4 has another outlet connected to a third drain pipe 22, the first drain pipe 8 is equipped with a third valve 23, the automatic filter 3 is equipped with auxiliary components, the centrifugal pump 2 is started to draw wastewater from the vacuum tank 101 and transport it to the automatic filter 3, the first filter screen 11 and the second filter screen 12 filter the wastewater and enter the heat exchange host 4 through the connecting pipe 19 for heat exchange.

[0022] like Figure 3As shown, it also includes auxiliary components with auxiliary functions. The auxiliary components include a third delivery pipe 14, a storage frame 15, a third filter screen 16, and a flexible valve 20. Another outlet of the automatic filter 3 is connected to the third delivery pipe 14. The storage frame 15 is welded to the outer ring of the automatic filter 3. The other end of the third delivery pipe 14 is connected to the inlet of the storage frame 15. An output pipe is connected to the lower side of the storage frame 15 and is connected to the automatic filter 3. The third filter screen 16 is welded inside the storage frame 15. The height of the second filter screen 12 in the lower part of the automatic filter 3 is lower than the height of the third filter screen 16, which facilitates the filtration of wastewater impurities. The aperture of the first filter screen 11 and the third filter screen 16 is larger than the aperture of the second filter screen 12, which is used to filter impurities of different sizes in the wastewater. A flexible valve 20 is installed on the third delivery pipe 14. The flexible valve 20 is opened due to the accumulation of wastewater. The third delivery pipe 14 delivers wastewater into the storage frame 15. The third filter screen 16 works with the second filter screen 12 to filter the wastewater.

[0023] like Figures 4-5 As shown, it also includes an insulation layer 24, a protective shell 25, and a first magnet 26. The insulation layer 24 is detachably connected to the heat exchange host 4 at even intervals. The inner ring of the insulation layer 24 is attached to the pipe connection of the heat exchange host 4. The outer ring of the insulation layer 24 is connected to the protective shell 25. The protective shell 25 has four locking rods on one side and four locking slots 27 on the other side. The locking rods on the protective shell 25 are inserted into the locking slots 27 on the other protective shell 25. The first magnet 26 is connected to the locking slots 27 on the protective shell 25. The other side of the first magnet 26 is magnetically connected to the locking rods on the other protective shell 25. The insulation layer 24 is used to improve the heat exchange efficiency of the heat exchange host 4. The protective shell 25 is used to protect the insulation layer 24. The first magnet 26 is used to fix the insulation layer 24 and the protective shell 25.

[0024] like Figure 2 As shown, it also includes a second magnet 28, which is detachably connected to the first conveying pipe 7.

[0025] When this device is needed, control cabinet 5 controls the vacuum tank 101 to connect to wastewater. The vacuum tank 101 removes dissolved gases from the wastewater and increases the dissolved oxygen content. Then, centrifugal pump 2 is started to extract the wastewater from the vacuum tank 101. The first delivery pipe 7 delivers the wastewater to the automatic filter 3. Before entering the automatic filter 3, the second magnet 28 adsorbs iron from the wastewater, reducing impurities. The wastewater then enters the automatic filter 3, where the first filter screen 11 and the second filter screen 12 filter the wastewater sequentially. If the first filter screen 11 becomes clogged... Wastewater accumulates and moves towards the flexible valve 20, causing it to open. The third conveying pipe 14 transports the wastewater to the storage frame 15. The third filter screen 16 and another second filter screen 12 sequentially filter the unfiltered wastewater, removing small particles and impurities from the fine wastewater. The third conveying pipe 14 prevents filtration from continuing if the first filter screen 11 malfunctions. The filtered wastewater enters the heat exchange host 4 through the connecting pipe 19, and clean water is transported into the heat exchange host 4 through the second conveying pipe 9, controlling the start of the heat exchange host. Machine 4 allows wastewater and clean water to flow separately within the heat exchange host 4. The wastewater releases heat to exchange heat with the clean water, raising the temperature of the clean water and achieving waste heat recovery. Before the heat exchange process, the two protective shells 25 are placed at the pipe connection of the heat exchange host 4 and moved towards each other, so that the insulation layer 24 fits against the pipe connection of the heat exchange host 4. The locking rods on both protective shells 25 are engaged in the locking grooves 27 of the opposite protective shell 25, thereby fixing the insulation layer 24 to the pipe connection of the heat exchange host 4. The insulation layer 24 can improve the heat exchange efficiency and maintain a stable water temperature. The 5th layer protects the insulation layer 24. After the waste heat recovery is completed, the heat exchange host 4 discharges clean water and wastewater through the first drain pipe 8 and the third drain pipe 22 respectively. The first valve 17 is opened, and the control cabinet 5 controls the backwash cleaning system 6 to clean the impurities on the first filter screen 11, the second filter screen 12 and the third filter screen 16, remove the blockages, and ensure the normal operation of the automatic filter 3. The second valve 18 is opened, and the cleaned wastewater is discharged through the second drain pipe 10. The control cabinet 5 can monitor the recovery status in real time to ensure the stable operation of the system.

[0026] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A waste heat recovery device for industrial wastewater treatment, The utility model relates to a kind of automatic filter system, it is characterized by, comprising: Workboard (1), the installation carrier of part; Vacuum tank (101), connect on the upper side front of the workboard (1), the upper side of the vacuum tank (101) is communicated with a delivery pipe; Centrifugal pump (2), install on the upper side of the workboard (1), the delivery pipe of the upper side of the vacuum tank (101) is communicated with the water inlet of the centrifugal pump (2); Automatic filter (3), install on the upper side of the workboard (1), the centrifugal pump (2) is located between the vacuum tank (101) and the automatic filter (3); First delivery pipe (7), be communicated with the water outlet of the centrifugal pump (2), the other end of the first delivery pipe (7) is communicated with the automatic filter (3); Backflush cleaning system (6), install on the lower right side of the automatic filter (3), the backflush cleaning system (6) is used to clean the impurity in the automatic filter (3); First valve (17), install at the junction of the backflush cleaning system (6) and the automatic filter (3); Heat exchange host (4), install on the upper side rear of the workboard (1), the rear side of the backflush cleaning system (6) is connected with the heat exchange host (4), the heat exchange host (4) is used to realize heat exchange; Control cabinet (5), install on the upper side front of the workboard (1), the control cabinet (5) is located on the left side of the vacuum tank (101), and is electrically connected with the centrifugal pump (2), the automatic filter (3), the heat exchange host (4) and the backflush cleaning system (6); Connecting pipe (19), be communicated with the heat exchange host (4) and the lower part of the opposite side of the automatic filter (3); First drain pipe (8), be communicated with the junction of the heat exchange host (4) and the rear side of the backflush cleaning system (6), the first drain pipe (8) is communicated with the water outlet of the heat exchange host (4); Second delivery pipe (9), be communicated with the water inlet of the heat exchange host (4); Second drain pipe (10), be communicated with the water outlet of the lower end of the automatic filter (3); Second valve (18), install on the second drain pipe (10); First filter screen (11), connect in the automatic filter (3); Second filter screen (12), symmetrically connect in the automatic filter (3) up and down, the second filter screen (12) is located below the first filter screen (11), and the first filter screen (11) and the second filter screen (12) are used to filter impurities in waste water; Third drain pipe (22), be communicated with another water outlet of the heat exchange host (4); Third valve (23), install on the first drain pipe (8); Auxiliary assembly, install on the automatic filter (3).

2. The waste heat recovery device for industrial wastewater treatment according to claim 1, characterized by Still including the auxiliary assembly with auxiliary function, auxiliary assembly includes: Third delivery pipe (14), be communicated with another water outlet of the automatic filter (3); A storage frame (15) is connected to the outer ring of the automatic filter (3), the other end of the third conveying pipe (14) is communicated with the water inlet of the storage frame (15), and the lower side of the storage frame (15) is communicated with an output pipe which is communicated with the automatic filter (3); A third filter screen (16) is connected to the storage frame (15), and the third filter screen (16) is used to assist the first filter screen (11) in filtering impurities; An elastic valve (20) is installed on the third conveying pipe (14).

3. The waste heat recovery device for industrial wastewater treatment according to claim 2, characterized by Further comprising: A heat preservation layer (24) is uniformly and spaced detachably connected to the heat exchange main machine (4), the inner ring of the heat preservation layer (24) is attached to the pipeline connection of the heat exchange main machine (4), and the heat preservation layer (24) is used to improve the heat exchange efficiency; A protective shell (25) is connected to the outer ring of the heat preservation layer (24), one side of the plane of the protective shell (25) is provided with four clamping rods, and the other side is provided with four clamping grooves (27), the clamping rod on the protective shell (25) is clamped into the clamping groove (27) on the other protective shell (25); A first magnet (26) is connected to the clamping groove (27) on the protective shell (25), and the other side of the first magnet (26) is magnetically connected to the clamping rod on the other protective shell (25).

4. The waste heat recovery device for industrial wastewater treatment according to claim 3, characterized in that, Further comprising: A second magnet (28) is detachably connected to the first conveying pipe (7).

5. The waste heat recovery device for industrial wastewater treatment according to claim 4, characterized in that: The height of the second filter screen (12) in the lower part of the automatic filter (3) is lower than the height of the third filter screen (16).

6. The waste heat recovery device for industrial wastewater treatment according to claim 5, characterized in that: The aperture of the first filter screen (11) and the third filter screen (16) is larger than the aperture of the second filter screen (12).

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