Side pipe type waste water heat pump

Abstract

The utility model discloses a side pipe type waste water heat pump, which belongs to the technical field of heat pumps and is characterized in that a demister is arranged in a flash tank, the side wall of the flash tank is connected with a heat pump through a plurality of flash steam channels and provides a heat source for the heat pump, the flash steam channels are obliquely arranged, and the heat pump is positioned below the flash tank. The steam channel is arranged on the side wall of the flash tank body, so that the steam transmission path is effectively shortened, the heat energy loss is reduced, and the heat pump efficiency is improved. And meanwhile, the side pipe type design facilitates compact installation of equipment and adapts to various space environments, the maintenance difficulty is reduced, and the stability and reliability of the whole system are improved. In addition, due to the inclined design, condensate water can be discharged conveniently, the water accumulation problem is avoided, and long-term stable operation of equipment is ensured. According to the flash evaporator, a backwashing structure is omitted, and the demister operation port is formed in the flash evaporator, so that the equipment structure is simplified, the manufacturing cost is reduced, meanwhile, the demister is conveniently and quickly replaced and maintained, and the operation efficiency and safety of the equipment are improved.

Description

Technical Field

[0001] This utility model belongs to the field of heat pump technology, and in particular to a side-pipe wastewater heat pump. Background Technology

[0002] In the field of industrial wastewater treatment and waste heat recovery, heat pump technology is widely used due to its high-efficiency heat recovery capabilities. However, traditional wastewater heat pump systems still face many technical bottlenecks in actual operation. For example, the steam transmission paths of existing equipment are usually long and dispersed, resulting in significant losses during heat transfer and making it difficult to improve heat pump efficiency. At the same time, the equipment has a complex structure and occupies a large space, making it difficult to adapt to compact installation environments, increasing maintenance difficulty and costs. In addition, the vertical or horizontal arrangement of steam channels in traditional designs can easily lead to increased flow resistance, frequent condensate accumulation problems, and long-term operation may cause equipment corrosion or efficiency decline, affecting system stability.

[0003] On the other hand, existing flash tanks mostly rely on backwashing structures to maintain demister functionality. This design not only increases equipment complexity and manufacturing costs but also requires frequent downtime for maintenance, severely restricting production continuity. How to simplify the structure, improve maintenance convenience, and reduce overall costs has become a pressing technical challenge in this field. Summary of the Invention

[0004] Purpose of the utility model: To provide a side-pipe type wastewater heat pump to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A side-pipe type wastewater heat pump includes: multiple flash tanks, each flash tank is equipped with a demister, the sidewall of the flash tank is connected to the heat pump through multiple flash steam channels and provides a heat source for it, the multiple flash steam channels are arranged at an angle, and the heat pump is located below the flash tank.

[0006] Furthermore, the flash tank has a demister operation port on its side wall for easy cleaning and removal of the demister, and the demister operation port is equipped with a sealing end cap.

[0007] Furthermore, the demister is a rectangular demister.

[0008] Furthermore, two parallel slides are arranged inside the flash tank, the demister is placed between the two slides, and a baffle plate is provided between the slides and the inner wall of the flash tank.

[0009] Furthermore, the demister is fixed to the slide rail by bolts.

[0010] Furthermore, the flash tank is equipped with a slurry inlet and a slurry outlet.

[0011] Furthermore, it also includes a support frame, which is bolted to a connecting portion disposed on the side wall of the flash tank, and the support frame is used to support multiple flash tanks.

[0012] Furthermore, a level gauge is installed on the flash tank.

[0013] Furthermore, the flash tank is equipped with an inspection door.

[0014] Furthermore, the flash tank is equipped with multiple lifting lugs. Beneficial effects

[0015] This application effectively shortens the steam transmission path, reduces heat loss, and improves heat pump efficiency by placing the steam channel on the side wall of the flash tank. Simultaneously, the side-pipe design facilitates compact equipment installation, adapts to various spatial environments, reduces maintenance difficulty, and enhances the overall system stability and reliability.

[0016] This application improves steam flow by tilting the steam passage onto the flash tank, resulting in smoother steam flow, reduced flow resistance, and enhanced thermal efficiency. Furthermore, the tilted design facilitates condensate drainage, preventing water accumulation and ensuring long-term stable operation of the equipment.

[0017] This application simplifies the equipment structure and reduces manufacturing costs by eliminating the backwashing structure and using a demister operation port on the flash evaporator. It also facilitates quick replacement and maintenance of the demister, thereby improving the equipment's operating efficiency and safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a schematic diagram of the installation position of the demister of this utility model.

[0021] The attached diagram is labeled as follows: 1. Flash tank; 2. Demister; 3. Flash steam passage; 4. Heat pump; 5. Demister operating port; 6. Sealing end cap; 7. Slide rail; 8. Baffle plate; 9. Slurry inlet; 10. Slurry outlet; 11. Support; 12. Connecting part; 13. Level gauge; 14. Inspection door; 15. Lifting lug. Detailed Implementation

[0022] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a side-pipe type wastewater heat pump includes: multiple flash tanks 1, each flash tank 1 having a demister 2 installed inside. The sidewall of each flash tank 1 is connected to a heat pump 4 via multiple flash steam channels 3, providing a heat source for the pump. The multiple flash steam channels 3 are arranged at an angle, and the heat pump 4 is located below the flash tank 1. A demister operation port 5 is provided on the sidewall of each flash tank 1 for easy cleaning and removal of the demister 2, and a sealing end cap 6 is provided on the demister operation port 5. The demister 2 is a rectangular demister. Two parallel slides 7 are arranged inside each flash tank 1, and the demister 2 is placed between the two slides 7. A baffle plate 8 is provided between the slides 7 and the inner wall of the flash tank 1. The demister 2 is bolted and fixed to the slides 7. A slurry inlet 9 and a slurry outlet 10 are provided on the flash tank 1. It also includes a support 11, which is bolted to a connecting part 12 provided on the side wall of the flash tank 1. The support 11 is used to support multiple flash tanks 1. A level gauge 13 is provided on each flash tank 1. An inspection door 14 is provided on each flash tank 1. Multiple lifting lugs 15 are provided on each flash tank 1.

[0024] The main function of flash tank 1 is to rapidly flash-evaporate the wastewater entering the tank under the negative pressure environment created by the vacuum pump. Multiple flash tanks 1 are arranged in parallel, which not only increases the wastewater treatment capacity but also makes fuller use of waste heat. A level gauge 13 installed inside the tank monitors the liquid level in real time, providing data support for stable system operation and ensuring that the liquid level remains within a reasonable range, preventing excessively high or low levels from affecting the flash-evaporation effect. The inspection door 14 on the flash tank 1 facilitates equipment maintenance. When a malfunction occurs or periodic inspections are required, opening the inspection door allows maintenance personnel to enter the tank for repairs, cleaning, and other operations. The slurry inlet 9 of the flash tank 1 is connected to the bottom of the desulfurization tower, receiving the desulfurization slurry as the flash-evaporation medium, while the slurry outlet 10 transports the flash-evaporated desulfurization slurry back into the desulfurization tower for re-spraying, realizing the recycling of the desulfurization slurry and improving resource utilization. The demister 2 removes droplets carried in the flash-evaporated steam, ensuring the purity of the steam entering the heat pump 4. The demister 2 can be a baffle plate demister. When steam carrying droplets flows inside the demister, the droplets impact the baffle plate due to inertia, thus separating from the steam and sliding down the surface of the baffle plate, effectively reducing the droplet content in the steam. The demister 2 is placed on the slide rail 7 and locked in place with bolts. The cross-section of the slide rail 7 can be C-shaped, allowing the demister 2 to be limited. This design reduces the use of bolts, improves installation efficiency, and enhances maintenance and replacement efficiency. This application eliminates the backwashing system, allowing manual flushing of the demister through the demister operation port 5, reducing equipment investment. The demister 2 can also be removed through the operation port 5 for easy replacement and maintenance. A sealing end cap 6 ensures sealing during operation. The heat pump 4 can be an absorption heat pump. The bracket 11 needs to have sufficient strength and stability to withstand the weight of the equipment and the vibrations and stresses generated during operation, providing a solid foundation for the safe and reliable operation of the system.

[0025] This application effectively shortens the steam transmission path, reduces heat loss, and improves the efficiency of the heat pump 4 by placing the steam channel 3 on the side wall of the flash tank 1. Simultaneously, the side-pipe design facilitates compact installation, adapts to various spatial environments, reduces maintenance difficulty, and enhances the overall system stability and reliability. Furthermore, the inclined placement of the steam channel 3 on the flash tank 1 allows for smoother steam flow, reduces flow resistance, and further improves heat utilization efficiency. In addition, the inclined design facilitates condensate drainage, avoids water accumulation, and ensures long-term stable operation of the equipment. This application simplifies the equipment structure and reduces manufacturing costs by eliminating the backwashing structure and incorporating a demister operation port 5 on the flash tank 1. It also facilitates quick replacement and maintenance of the demister 2, improving the equipment's operating efficiency and safety.

[0026] Work process:

[0027] The working process of the side-pipe wastewater heat pump in this application is as follows: High-temperature wastewater enters the flash tank 1 through the slurry inlet 9. The pressure inside the tank decreases, causing some of the wastewater to flash into steam. During the steam rise, after being intercepted by the rectangular demister 2, the steam enters the evaporator side of the heat pump 4 through the inclined flash steam channel 3, providing a stable heat source for the heat pump. The inclined channel 3 reduces the steam flow resistance and promotes the natural return of condensate to the flash tank 1, preventing accumulation. After absorbing the heat from the steam, the heat pump 4 raises the thermal energy to a usable temperature through refrigerant circulation for use by external systems.

[0028] The treated concentrated slurry is discharged through slurry outlet 10, and level gauge 13 monitors the liquid level in the tank in real time to ensure operational stability. Demister 2 is fixed inside flash tank 1 via slide rail 7, and baffles 8 on both sides prevent unevaporated liquid from interfering with the function of the demister. When maintenance is required, demister 2 can be quickly disassembled or replaced through demister operation port 5 by opening the sealing end cover 6.

[0029] The entire unit is stably supported by the bracket 11 and the bolted connection part 12. The lifting lugs 15 facilitate the hoisting and transportation of the equipment, and the inspection door 14 provides a convenient passage for internal inspection. This design, through its compact layout and efficient heat transfer path, significantly reduces heat loss and achieves continuous recovery of wastewater heat and long-term system operation.

[0030] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A side-pipe type wastewater heat pump, characterized in that, include: Multiple flash tanks (1) are provided with a demister (2) inside each flash tank (1). The side wall of each flash tank (1) is connected to a heat pump (4) through multiple flash steam channels (3) and provides a heat source for it. The multiple flash steam channels (3) are arranged at an angle. The heat pump (4) is located below the flash tank (1).

2. The side-pipe wastewater heat pump according to claim 1, characterized in that, The flash tank (1) has a demister operation port (5) on its side wall for easy cleaning and removal of the demister (2), and a sealing end cap (6) is provided on the demister operation port (5).

3. The side-pipe wastewater heat pump according to claim 2, characterized in that, The demister (2) is a rectangular demister.

4. The side-pipe wastewater heat pump according to claim 1, characterized in that, Two slides (7) are arranged in parallel inside the flash tank (1), and the demister (2) is placed between the two slides (7). A baffle plate (8) is provided between the slides (7) and the inner wall of the flash tank (1).

5. The side-pipe wastewater heat pump according to claim 4, characterized in that, The demister (2) is fixed to the slide rail (7) by bolts.

6. The side-pipe wastewater heat pump according to claim 1, characterized in that, The flash tank (1) is provided with a slurry inlet (9) and a slurry outlet (10).

7. The side-pipe wastewater heat pump according to claim 1, characterized in that, It also includes a bracket (11), which is bolted to a connecting part (12) provided on the side wall of the flash tank (1). The bracket (11) is used to support multiple flash tanks (1).

8. The side-pipe wastewater heat pump according to claim 1, characterized in that, The flash tank (1) is equipped with a level gauge (13).

9. The side-pipe wastewater heat pump according to claim 1, characterized in that, The flash tank (1) is equipped with an inspection door (14).

10. The side-pipe wastewater heat pump according to claim 1, characterized in that, The flash tank (1) is equipped with multiple lifting lugs (15).

Images