High efficiency mvr evaporator
The pulse cleaning tube and lifting assembly work together to achieve efficient cleaning of the MVR evaporator fins, solving the problem of reduced efficiency caused by ash accumulation in the heat exchanger and ensuring long-term efficient operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU YANJIALONG MASCH CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-07
AI Technical Summary
After long-term operation, dust accumulates on the heat exchanger fins of MVR evaporators, leading to reduced heat exchange efficiency, which is difficult to clean efficiently with existing technologies.
The system employs a pulse cleaning tube in conjunction with a drive motor and lifting components. Through pulsed airflow impact and lifting motion, it achieves full-coverage cleaning of the heat sink fins. Combined with an industrial vacuum cleaner to collect accumulated dust, it forms an automated cleaning system.
It effectively removes accumulated dust from the fin gaps, maintains high-efficiency heat exchange performance, reduces downtime for maintenance, and lowers operating costs. It is suitable for chemical, food and other fields.
Smart Images

Figure CN224462273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporator technology, specifically a high-efficiency MVR evaporator. Background Technology
[0002] MVR evaporators are high-efficiency and energy-saving evaporation equipment that enhances the energy of secondary steam through mechanical compression and reuses it. They are widely used in solution concentration and wastewater treatment in chemical, food, pharmaceutical, and environmental protection industries.
[0003] After prolonged operation, dust will accumulate on the fins of the MVR evaporator. This dust accumulation will affect the heat exchange efficiency of the evaporator, thereby reducing its operating efficiency. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a high-efficiency MVR evaporator.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency MVR evaporator, comprising a heat exchanger body, a top plate and a bottom plate, wherein the top plate is fixed above the bottom plate, the heat exchanger body is installed on the upper end of the top plate, the heat exchanger body is provided with a conduit, and multiple sets of heat dissipation fins are symmetrically arranged on both sides of the heat exchanger body.
[0008] Two lifting components are symmetrically arranged at the lower end of the top plate. A side box is provided on the outer side of the heat dissipation fins. The output end of the lifting component is provided with a lifting rod that penetrates the top plate and connects to the side box. A slot is provided inside the side box. A pulse cleaning tube is provided inside the slot. Multiple air outlets are provided inside the pulse cleaning tube. A drive motor is provided at the front end of the side box. A rotating shaft connected to the front end of the pulse cleaning tube is provided at the output end of the drive motor. A pulse air pump is provided at the rear end of the side box. An air inlet pipe is provided at the air outlet end of the pulse air pump and is inserted into and connected to the pulse cleaning tube. The air inlet pipe is rotatably connected to the pulse cleaning tube.
[0009] When it is necessary to clean the heat sink fins, start the pulse air pump to make the pulse cleaning tube perform pulse cleaning on the heat sink fins. At this time, start the drive motor to make the pulse cleaning tube swing back and forth in the empty slot, which can improve the pulse cleaning effect.
[0010] Activate the lifting assembly to raise and lower the lifting rod along with the side box to the outside of the heat sink fins, thus cleaning the heat sink fins more thoroughly.
[0011] Turn on the vacuum cleaner, and the cleaned-up debris will be sucked into the vacuum cleaner through the suction port and suction tube.
[0012] Furthermore, an improvement of this utility model is that support rods for connecting the top plate are vertically arranged at the four corners of the base plate.
[0013] Furthermore, an improvement of this utility model is that the rear ends of the air intake pipe and the pulse cleaning pipe are rotatably connected by a sealed bearing.
[0014] To facilitate the collection of cleaned-up impurities, the present invention includes the following improvements: multiple suction holes are provided on the inner side of the side box with symmetrical slots at the top and bottom; the interior of the side box is provided with a cavity communicating with the suction holes; a vacuum cleaner is provided at the upper end of the bottom plate; and the suction end of the vacuum cleaner is connected to the cavity through a suction pipe.
[0015] Furthermore, the improvements of this utility model include that the vacuum cleaner is an industrial vacuum cleaner, the suction pipe is a rubber hose, the lifting assembly is a cylinder, and the drive motor is a servo motor.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a high-efficiency MVR evaporator with the following features:
[0018] Beneficial effects:
[0019] Through the coordinated action of the pulse air pump and the drive motor, the pulse cleaning tube impacts the surface of the heat sink fins in a swinging jet manner. Combined with the lifting and lowering motion of the side box, a cleaning mode of "dynamic airflow impact + full height coverage" is formed, which can effectively remove the accumulated dust in the gaps of the fins, maintain the heat exchange area and heat conduction efficiency of the heat sink fins, and ensure that the MVR evaporator maintains high evaporation efficiency for a long time. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This utility model Figure 1 The main view;
[0022] Figure 3 This utility model Figure 1 Side view;
[0023] Figure 4 This is a schematic diagram of the installation structure of the pulse cleaning tube in this utility model;
[0024] In the diagram: 1. Heat exchanger body; 2. Lifting assembly; 3. Heat dissipation fins; 4. Guide tube; 5. Top plate; 6. Bottom plate; 7. Side box; 8. Pulse air pump; 9. Drive motor; 10. Empty slot; 11. Pulse cleaning pipe; 12. Air outlet; 13. Air inlet pipe; 14. Rotating shaft; 15. Dust suction port; 16. Dust suction pipe; 17. Vacuum cleaner; 18. Lifting rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-4 The present invention provides a high-efficiency MVR evaporator, comprising a heat exchanger body 1, a top plate 5 and a bottom plate 6. The top plate 5 is fixed above the bottom plate 6. The heat exchanger body 1 is installed on the upper end of the top plate 5. The heat exchanger body 1 is provided with a conduit 4, and multiple sets of heat dissipation fins 3 are symmetrically arranged on both sides of the heat exchanger body 1.
[0027] Two lifting components 2 are symmetrically arranged at the lower end of the top plate 5. A side box 7 is provided on the outer side of the heat dissipation fins 3. The output end of the lifting component 2 is provided with a lifting rod 18 that penetrates the top plate 5 and connects to the side box 7. A slot 10 is provided inside the side box 7. A pulse cleaning tube 11 is provided inside the slot 10. Multiple air outlets 12 are provided inside the pulse cleaning tube 11. A drive motor 9 is provided at the front end of the side box 7. A rotating shaft 14 connected to the front end of the pulse cleaning tube 11 is provided at the output end of the drive motor 9. A pulse air pump 8 is provided at the rear end of the side box 7. An air inlet pipe 13 is provided at the air outlet end of the pulse air pump 8 that is inserted into the pulse cleaning tube 11 and communicates with the pulse cleaning tube 11. The air inlet pipe 13 is rotatably connected to the pulse cleaning tube 11.
[0028] Evaporation operation process:
[0029] The heat exchanger body 1 is connected to the solution to be treated via a conduit 4. Steam enters the heat exchanger body 1 through the conduit 4 and exchanges heat with the outside environment through the heat dissipation fins 3, thereby achieving evaporation and concentration of the solution. During this process, the MVR system maintains evaporation efficiency by mechanically compressing and recycling secondary steam.
[0030] Heat sink fin 3-pulse cleaning:
[0031] When dust accumulation on the surface of the heat dissipation fins 3 affects heat exchange efficiency, the pulse air pump 8 is activated. High-pressure gas is injected into the pulse cleaning pipe 11 through the inlet pipe 13, and pulse airflow is sprayed onto the heat dissipation fins 3 through the inner outlet 12, shaking off the surface dust. At the same time, the drive motor 9 drives the rotating shaft 14 to rotate, causing the pulse cleaning pipe 11 to oscillate back and forth in the slot 10, expanding the airflow coverage and enhancing the impact effect on dust accumulation in the fin gaps.
[0032] Side box 7-lift full-coverage cleaning:
[0033] Activate the lifting assembly 2 (e.g., a cylinder), and the lifting rod 18 will move the side box 7 up and down along the height direction of the heat dissipation fins 3. During the movement of the side box 7, the pulse cleaning pipe 11 continuously sprays pulsed airflow to achieve dynamic cleaning of the entire height range of the heat dissipation fins 3, avoiding dead angle problems caused by cleaning in a fixed position.
[0034] Ash collection and treatment:
[0035] The side box 7 has multiple suction holes 15 arranged vertically and vertically in the symmetrical slots 10 on its inner side. The side box 7 has a cavity that communicates with the suction holes 15. The bottom plate 6 has a vacuum cleaner 17 at its upper end. The suction end of the vacuum cleaner 17 is connected to the cavity through a suction pipe 16.
[0036] The dust suction holes 15 inside the side box 7 work simultaneously during the cleaning process. The dust that is shaken off enters the internal cavity of the side box 7 through the dust suction holes 15, and is then collected by the industrial vacuum cleaner on the base plate 6 via the dust suction pipe 16. The rubber dust suction pipe 16 can be flexibly bent as the side box 7 rises and falls, ensuring that the dust suction passage is always unobstructed.
[0037] Cleanup operation completed:
[0038] After cleaning is completed, the lifting assembly 2 returns the side box 7 to its initial position, the pulse air pump 8 and the drive motor 9 stop working, and the vacuum cleaner 17 continues to run until the dust in the cavity is completely sucked in. Then the whole machine returns to the evaporation operation state.
[0039] The coordinated control of the lifting assembly 2, drive motor 9, and pulse air pump 8 enables automated cleaning operations. No manual disassembly of the heat sink fins 3 is required, reducing downtime for maintenance and lowering operating costs. The combined design of the industrial vacuum cleaner and suction hose 16 ensures that accumulated dust generated during cleaning is collected immediately, preventing secondary pollution and maintaining a clean environment inside the equipment.
[0040] Support rods for connecting the top plate 5 are vertically installed at the four corners of the base plate 6.
[0041] The reliability of the structural design is improved by fixing the bottom plate 6 and the top plate 5 with support rods to form a stable frame structure, ensuring the installation accuracy of the heat exchanger body 1 and the cleaning components.
[0042] The rear end of the air intake pipe 13 and the pulse cleaning pipe 11 are rotatably connected by a sealed bearing.
[0043] The air intake pipe 13 and the pulse cleaning pipe 11 are rotatably connected by a sealed bearing, which ensures the gas sealing effect and allows the pulse cleaning pipe 11 to rotate freely, thus preventing pipe twisting and leakage.
[0044] The vacuum cleaner 17 is an industrial vacuum cleaner, the suction pipe 16 is a rubber hose, the lifting assembly 2 is a cylinder, and the drive motor 9 is a servo motor.
[0045] The rubber suction pipe 16 is both flexible and wear-resistant, adapting to the frequent displacement during the lifting and lowering of the side box 7.
[0046] The servo motor-driven pulse cleaning tube 11 enables precise swing angle control, and the cylinder lifting assembly 2 can adjust its stroke according to the height of the heat sink fins 3, making the equipment suitable for MVR evaporators of different specifications. The powerful suction design of the industrial vacuum cleaner can handle different types of dust (such as dust and oil particles) in chemical, food and other fields, improving the applicability of the equipment under complex working conditions.
[0047] Compared to traditional manual cleaning or fixed blowing devices, this equipment offers dual advantages in energy saving and environmental protection. It reduces energy consumption through the efficient impact of pulsed airflow, while the automated cleaning process minimizes manual intervention, meeting the energy-saving requirements of industrial production. The integrated design of the dust collection system prevents dust from overflowing, meeting environmental production standards, and is particularly suitable for scenarios with high cleanliness requirements, such as pharmaceuticals and food processing.
[0048] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0049] 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.
Claims
1. A high-efficiency MVR evaporator, comprising a heat exchanger body (1), a top plate (5), and a bottom plate (6), characterized in that: The top plate (5) is fixed above the bottom plate (6), the heat exchanger body (1) is installed on the upper end of the top plate (5), the heat exchanger body (1) is provided with a conduit (4), and multiple sets of heat dissipation fins (3) are symmetrically arranged on both sides of the heat exchanger body (1). Two lifting components (2) are symmetrically arranged at the lower end of the top plate (5). A side box (7) is provided on the outer side of the heat dissipation fins (3). The output end of the lifting component (2) is provided with a lifting rod (18) that penetrates the top plate (5) and connects to the side box (7). A slot (10) is provided inside the side box (7). A pulse cleaning tube (11) is provided inside the slot (10). Multiple air outlets (12) are provided inside the pulse cleaning tube (11). A drive motor (9) is provided at the front end of the side box (7). A rotating shaft (14) connected to the front end of the pulse cleaning tube (11) is provided at the output end of the drive motor (9). A pulse air pump (8) is provided at the rear end of the side box (7). An air inlet pipe (13) is provided at the air outlet end of the pulse air pump (8) that is inserted into the pulse cleaning tube (11) and communicates with the pulse cleaning tube (11). The air inlet pipe (13) is rotatably connected to the pulse cleaning tube (11).
2. The high-efficiency MVR evaporator according to claim 1, characterized in that: Support rods connecting the top plate (5) are vertically installed at the four corners of the base plate (6).
3. A high-efficiency MVR evaporator according to claim 2, characterized in that: The rear end of the air intake pipe (13) and the pulse cleaning pipe (11) are rotatably connected by a sealed bearing.
4. A high-efficiency MVR evaporator according to claim 3, characterized in that: The side box (7) has multiple suction holes (15) arranged on the upper and lower sides of the symmetrical slots (10). The side box (7) has a cavity that communicates with the suction holes (15). The bottom plate (6) has a vacuum cleaner (17) at the upper end. The suction end of the vacuum cleaner (17) is connected to the cavity through a suction pipe (16).
5. A high-efficiency MVR evaporator according to claim 4, characterized in that: The vacuum cleaner (17) is an industrial vacuum cleaner, and the suction pipe (16) is a rubber pipe.
6. A high-efficiency MVR evaporator according to claim 5, characterized in that: The lifting assembly (2) is a cylinder, and the drive motor (9) is a servo motor.