Integrated heat source sewage pretreatment device of sewage source heat pump system

Abstract

According to the integrated heat source sewage pretreatment device of the sewage source heat pump system, a water pump is fixedly arranged on one side of a treatment box, a guide pipe inserted into a precipitation tank is arranged at the water suction end of the water pump, a sewage disposal grid is arranged in the precipitation tank, and a plurality of smashing shafts are arranged at the front end of the sewage disposal grid; limiting seats fixed to the two ends of the sewage disposal grid are rotationally arranged at the two ends of the smashing shaft, driven blocks located on the outer sides of the limiting seats are arranged at one end of the smashing shaft, clamping grooves are formed in the driven blocks, and due to the fact that the rotary cutting type sewage disposal grid can effectively cut solid particles, the frequency of cleaning the grid can be reduced. Compared with a traditional sewage source system anti-blocking device, the cleaning frequency is lower, the workload and cost of system maintenance are reduced, and meanwhile the stability and reliability of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage pretreatment devices, in particular to an integrated heat source sewage pretreatment device for a sewage source heat pump system. Background Art

[0002] The sewage source heat pump energy station is used to heat the boiler primary network return water. Based on this project, the characteristics of the original urban sewage are used to consider the efficient pretreatment of the sewage to improve the heat exchange efficiency of the available sewage;

[0003] In traditional sewage source system anti-clogging devices, large pieces of suspended matter can easily clog the filter screen, requiring frequent cleaning, which increases the workload and cost of system maintenance, while reducing the stability and reliability of the system. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an integrated heat source sewage pretreatment device for a sewage source heat pump system.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated heat source sewage pretreatment device of a sewage source heat pump system, comprising a treatment box, a treatment tank and a sedimentation tank are arranged inside the treatment box, a water pump is fixedly arranged on one side of the treatment box, a water suction end of the water pump is provided with a conduit inserted into the sedimentation tank, a sewage cleaning grille is arranged inside the sedimentation tank, a plurality of crushing shafts are arranged at the front end of the sewage cleaning grille, and limit seats fixed at both ends of the sewage cleaning grille are rotatably arranged at both ends of the crushing shaft, a driven block located outside the limit seat is arranged at one end of the crushing shaft, a card slot is arranged inside the driven block, a plurality of first motors are arranged on the outer wall of the treatment box, a driving shaft penetrating the treatment box is arranged at the output end of the first motor, and a card slot matching the card slot is arranged on the driving shaft.

[0008] Furthermore, the improvement of the utility model is that the card slot is a cross structure.

[0009] Furthermore, the utility model is improved in that a slide groove is provided on the inner wall of the treatment tank, and sliding blocks cooperating with the slide groove are provided at both ends of the cleaning grille.

[0010] Furthermore, the utility model has the following improvements: a second motor is fixedly arranged above the processing tank, a winding shaft is provided at the output end of the second motor, a pull rope is wound around the winding shaft, and the bottom end of the pull rope is fixed to the top of the cleaning grille.

[0011] Furthermore, the utility model has the following improvements: a positioning seat is provided at the top end of the cleaning grille, a bolt is provided at the bottom end of the pull rope, and the bolt is threadedly connected to the positioning seat.

[0012] Furthermore, the utility model has the following improvements: the pull rope is a steel wire rope, and the bottom end of the pull rope is rotatably connected to the bolt.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an integrated heat source sewage pretreatment device for a sewage source heat pump system, which has the following beneficial effects:

[0015] 1. Reduce maintenance frequency and reduce operation and maintenance costs: Since the rotary cutting cleaning screen can effectively cut solid particles, the frequency of cleaning the screen can be reduced. Compared with the traditional sewage source system anti-blocking device, its cleaning frequency is lower, which reduces the workload and cost of system maintenance, and improves the stability and reliability of the system;

[0016] 2. Reduce energy consumption: By reducing the impact of solid particles on the heat exchanger, the energy consumption of the system can be reduced. Because the blockage of solid particles will cause the heat pump system to require more energy to maintain normal operation, and clean sewage can reduce the energy consumption of the system and improve energy efficiency;

[0017] 3. Improve the service life of the heat exchanger: Since the corrosion and wear of the heat exchanger by solid particles are reduced, the service life of the heat exchanger can be extended and the system maintenance and replacement costs can be reduced;

[0018] 4. Improve the heat exchange efficiency of the heat exchanger: By keeping the surface of the heat exchanger clean, the sewage source cleaning screen can improve the heat exchange efficiency of the heat exchanger. The clean heat exchanger surface can more effectively exchange heat with sewage, thereby improving the heat exchange efficiency of the heat pump system;

[0019] 5. Efficient cleaning of solid particles: The rotary cutting cleaning screen has the function of rotary cutting, which can effectively cut large particles in sewage into small particles, making them easier to filter and remove. This helps reduce the blockage and accumulation of solid particles in the heat exchanger and improve the heat exchange efficiency of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;

[0021] Figure 2 This is a schematic diagram of the third perspective structure of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the driven block in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the card slot in the utility model;

[0024] In the figure: 1. treatment box; 2. treatment tank; 3. sedimentation tank; 4. water pump; 5. conduit; 6. cleaning grille; 7. slide; 8. slider; 9. second motor; 10. winding shaft; 11. pull rope; 12. positioning seat; 13. bolt; 14. crushing shaft; 15. limit seat; 16. first motor; 17. slot; 18. driving shaft; 19. driven block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model discloses an integrated heat source sewage pretreatment device for a sewage source heat pump system, comprising a treatment box 1, wherein a treatment tank 2 and a sedimentation tank 3 are arranged inside the treatment box 1, a water pump 4 is fixedly arranged on one side of the treatment box 1, a water suction end of the water pump 4 is provided with a conduit 5 inserted into the sedimentation tank 3, a sewage cleaning grille 6 is arranged inside the sedimentation tank 3, a front end of the sewage cleaning grille 6 is provided with a plurality of crushing shafts 14, and both ends of the crushing shaft 14 are rotatably provided with limit seats 15 fixed to both ends of the sewage cleaning grille 6, one end of the crushing shaft 14 is provided with a driven block 19 located outside the limit seat 15, a card slot 17 is arranged inside the driven block 19, a plurality of first motors 16 are arranged on the outer wall of the treatment box 1, an output end of the first motor 16 is provided with a driving shaft 18 penetrating the treatment box 1, and a card slot 17 cooperating with the card slot 17 is arranged on the driving shaft 18;

[0027] In this embodiment, the sewage source heat pump system is connected in series with the boiler system. The sewage source heat pump is first used to heat the boiler room primary return water, and then enters the boiler to continue to increase the temperature and then transported to each heat exchange station for heat exchange. The main equipment of the sewage source system includes sewage pump 4, sewage heat exchanger, heat pump intermediate circulation pump, heat pump unit and primary network return water booster pump, etc. The system cools the sewage through the sewage heat exchanger and then discharges it back to the sewage channel; the heat pump intermediate water is heated after passing through the sewage heat exchanger and enters the evaporator of the heat pump unit; the boiler room primary return water enters the heat pump condenser and is heated and then returns to the boiler primary return water main pipe to enter the gas boiler for further heating;

[0028] Starting the first motor 16 can make the crushing shaft 14 rotate on one side of the cleaning grille 6, and the crushing shaft 14 can cut the large suspended solids in the sewage discharged from the municipal side, and the crushed debris will pass through the cleaning grille 6 and flow into the sedimentation tank 3 together with the sewage. At this time, the debris will settle in the sedimentation tank 3, and finally the sewage can be pumped to the designated location by the water pump 4;

[0029] This structure has the following advantages:

[0030] 1. Reduce maintenance frequency and reduce operation and maintenance costs: Since the rotary cutting cleaning screen 6 can effectively cut solid particles, the frequency of cleaning the screen can be reduced. Compared with the traditional sewage source system anti-blocking device, its cleaning frequency is lower, which reduces the workload and cost of system maintenance, and improves the stability and reliability of the system;

[0031] 2. Reduce energy consumption: By reducing the impact of solid particles on the heat exchanger, the energy consumption of the system can be reduced. Because the blockage of solid particles will cause the heat pump system to require more energy to maintain normal operation, and clean sewage can reduce the energy consumption of the system and improve energy efficiency;

[0032] 3. Improve the service life of the heat exchanger: Since the corrosion and wear of the heat exchanger by solid particles are reduced, the service life of the heat exchanger can be extended and the system maintenance and replacement costs can be reduced;

[0033] 4. Improve the heat exchange efficiency of the heat exchanger: By keeping the surface of the heat exchanger clean, the sewage cleaning grid 6 can improve the heat exchange efficiency of the heat exchanger. The clean heat exchanger surface can more effectively exchange heat with the sewage, thereby improving the heat exchange efficiency of the heat pump system;

[0034] 5. Efficient cleaning of solid particles: The rotary cutting cleaning screen 6 has the function of rotary cutting, which can effectively cut large particles in the sewage into small particles, making them easier to filter and remove, which helps to reduce the blockage and accumulation of solid particles on the heat exchanger and improve the heat exchange efficiency of the heat exchanger.

[0035] In this embodiment, the slot 17 is a cross structure.

[0036] In this embodiment, a slide groove 7 is provided on the inner wall of the processing tank 2, and sliders 8 cooperating with the slide groove 7 are provided at both ends of the cleaning grille 6. Through the cooperation between the slide groove 7 and the slider 8, the cleaning grille 6 can be installed more firmly in the processing tank 2.

[0037] In this embodiment, a second motor 9 is fixedly arranged above the processing tank 2, and a winding shaft 10 is provided at the output end of the second motor 9. A pull rope 11 is wound around the winding shaft 10, and the bottom end of the pull rope 11 is fixed to the top of the cleaning grille 6. Starting the second motor 9 can rotate the winding shaft 10, and the winding shaft 10 can reel in the pull rope 11. At this time, the pull rope 11 can provide a pulling force to the cleaning grille 6, so that the cleaning grille 6 can be taken out of the processing tank 2, and the cleaning grille 6 can be easily cleaned. Before this, it is necessary to disassemble the first motor 16 on the outer wall of the processing box 1, and then pull the first motor 16 to make the block disengage from the slot 17 and pull the drive shaft 18 out of the processing tank 2.

[0038] Furthermore, a positioning seat 12 is provided at the top of the cleaning grille 6, and a bolt 13 is provided at the bottom end of the pull rope 11. The bolt 13 is threadedly connected to the positioning seat 12. Through the cooperation between the positioning seat 12 and the bolt 13, the bottom end of the pull rope 11 can be easily connected to the cleaning grille 6.

[0039] Furthermore, the pull rope 11 is a steel wire rope, and the bottom end of the pull rope 11 is rotatably connected to the bolt 13 .

[0040] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A sewage source heat pump system integrated heat source sewage pretreatment device, comprising a treatment box (1), wherein a treatment tank (2) and a sedimentation tank (3) are provided inside the treatment box (1), characterized in that: A water pump (4) is fixedly arranged on one side of the treatment box (1), and a water suction end of the water pump (4) is provided with a conduit (5) inserted into the sedimentation tank (3). A cleaning grille (6) is provided inside the sedimentation tank (3), and a plurality of crushing shafts (14) are provided at the front end of the cleaning grille (6). The two ends of the crushing shaft (14) are rotatably provided with limit seats (15) fixed to the two ends of the cleaning grille (6). One end of the crushing shaft (14) is provided with a driven block (19) located outside the limit seat (15), and a slot (17) is provided inside the driven block (19). A plurality of first motors (16) are provided on the outer wall of the treatment box (1), and a driving shaft (18) penetrating the treatment box (1) is provided at the output end of the first motor (16), and a slot (17) matching the slot (17) is provided on the driving shaft (18).

2. The integrated heat source sewage pretreatment device of the sewage source heat pump system according to claim 1 is characterized by: The clamping slot (17) is a cross structure.

3. The integrated heat source sewage pretreatment device of the sewage source heat pump system according to claim 2 is characterized by: A slide groove (7) is provided on the inner wall of the treatment tank (2), and sliding blocks (8) cooperating with the slide groove (7) are provided at both ends of the cleaning grille (6).

4. The integrated heat source sewage pretreatment device of the sewage source heat pump system according to claim 3 is characterized by: A second motor (9) is fixedly arranged above the treatment tank (2), and a winding shaft (10) is provided at the output end of the second motor (9). A pull rope (11) is wound around the winding shaft (10), and the bottom end of the pull rope (11) is fixed to the top of the cleaning grille (6).

5. The integrated heat source sewage pretreatment device of the sewage source heat pump system according to claim 4 is characterized by: A positioning seat (12) is provided at the top end of the cleaning grille (6), a bolt (13) is provided at the bottom end of the pull rope (11), and the bolt (13) is threadedly connected to the positioning seat (12).

6. The integrated heat source sewage pretreatment device of the sewage source heat pump system according to claim 5 is characterized by: The pull rope (11) is a steel wire rope, and the bottom end of the pull rope (11) is rotatably connected to a bolt (13).

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