MVR evaporator

Abstract

The utility model discloses an MVR (mechanical vapor recompression) evaporator which comprises a heater, the upper end of the heater is fixedly communicated with a first guide pipe, one end of the first guide pipe is fixedly communicated with an evaporator, the lower end of the heater is fixedly communicated with a second guide pipe, and one end of the second guide pipe is fixedly communicated with a preheater. The upper end and the lower end of the preheater are fixedly communicated with a feeding pipe and a first condensate pipe respectively, a third guide pipe is fixedly communicated between the preheater and the heater, the evaporator and the heater are fixedly communicated with secondary evaporation guide pipes respectively, and the same compressor is fixedly communicated between the two secondary evaporation guide pipes. And the evaporator is fixedly communicated with a second condensate pipe. According to the utility model, heat in the concentrated solution can be recycled, so that the waste of heat resources is effectively avoided, the heat utilization efficiency of the MVR evaporator is improved, and the MVR evaporator is more energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of MVR evaporators, and specifically relates to an MVR evaporator. Background Technique

[0002] The MVR evaporator is a new type of highly efficient and energy-saving evaporation device. This device uses low-temperature and low-pressure steam evaporation technology and clean energy as the energy to generate steam, separating the water in the medium. It is an internationally advanced evaporation technology and an upgraded product to replace traditional evaporators.

[0003] When the existing MVR evaporator is in use, the concentrated liquid generated by evaporation carries a large amount of heat, and this heat will be carried away together with the outflow of the concentrated liquid, resulting in waste of the heat in the concentrated liquid, which does not conform to the concept of energy conservation and environmental protection. Content of the Utility Model

[0004] The purpose of the utility model is to provide an MVR evaporator to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] The utility model provides an MVR evaporator, including a heater. The upper end of the heater is fixedly communicated with a first conduit. One end of the first conduit is fixedly communicated with an evaporator. The lower end of the heater is fixedly communicated with a second conduit. One end of the second conduit is fixedly communicated with a pre-heater. The upper end and the lower end of the pre-heater are respectively fixedly communicated with a feed pipe and a first condensate pipe. A third conduit is fixedly communicated between the pre-heater and the heater. Second evaporation conduits are fixedly communicated on both the evaporator and the heater. The same compressor is fixedly communicated between the two second evaporation conduits. A second condensate pipe is fixedly communicated on the evaporator. The bottom of the evaporator is fixedly communicated with a concentrated liquid pipe. A heat recovery mechanism is connected between the concentrated liquid pipe and the pre-heater;

[0007] The heat recovery mechanism includes an elbow fixedly communicated with the concentrated liquid pipe. One end of the elbow away from the concentrated liquid pipe is fixedly connected with a pump. The water inlet of the pump is communicated with the elbow. The water outlet of the pump is fixedly communicated with a diversion pipe. A heating cylinder is fixedly connected to the vertical outer wall of the pre-heater. One end of the diversion pipe is fixedly communicated with the heating cylinder. The lower end of the heating cylinder is fixedly communicated with a discharge pipe.

[0008] Furthermore, an installation pipe is fixedly connected to the outer wall of the compressor. Two air inlet holes are symmetrically opened on the pipe wall of the installation pipe. One end of the installation pipe away from the compressor is fixedly connected with a radiator fan, and the wind direction of the radiator fan faces away from the compressor.

[0009] Further, a heat preservation sleeve is fixedly sleeved outside the heating cylinder, and the specific material of the heat preservation sleeve is heat preservation cotton.

[0010] Further, a plurality of heat dissipation fins are fixedly connected to the outer wall of the compressor, and all of the plurality of heat dissipation fins are located inside the installation pipe.

[0011] Further, both the elbow pipe and the diversion pipe are heat preservation pipes.

[0012] Further, a mounting plate is fixedly connected to the vertical outer wall of the pre-heater, and a vibrator is fixedly connected to one side of the mounting plate away from the pre-heater.

[0013] Further, anti-backflow check valves are fixedly communicated with the first conduit, the second conduit, the third conduit, and the secondary evaporation conduit.

[0014] Further, the bottom of the evaporator is conical, and the diameter of the lower end of the evaporator is smaller than that of the upper end.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] With the heat recovery mechanism provided in the present utility model, during use, the liquid to be evaporated enters the pre-heater through the feed pipe, the pre-heater pre-heats the liquid to be evaporated, the pre-heated liquid to be evaporated enters the heater for heating, the heated liquid to be evaporated enters the evaporator for evaporation, the provided compressor re-transports the liquid to be evaporated that has not been completely evaporated and contains a large amount of heat to the heater for secondary heating and evaporation, the concentrated liquid generated in the evaporator enters the concentrated liquid pipe, the pump is controlled to operate, and the pump transports the concentrated liquid to the heating cylinder through the elbow pipe and the diversion pipe, and the heat in the concentrated liquid is transmitted to the pre-heater through the heating cylinder, so that the liquid to be evaporated in the pre-heater can be pre-heated by the heat in the concentrated liquid, thereby being able to recycle the heat in the concentrated liquid, effectively avoiding the waste of heat resources, improving the heat utilization efficiency of the MVR evaporator, and making the MVR evaporator more energy-saving and environment-friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the present utility model after removing the heat preservation sleeve;

[0019] Figure 3 is Figure 1 a schematic diagram of the connection structure of the heat dissipation fan and the installation pipe in

[0020] In the figure: 1. Heater; 2. First conduit; 3. Evaporator; 4. Second conduit; 5. Pre-heater; 6. Feed pipe; 7. First condensate pipe; 8. Third conduit; 9. Secondary evaporation conduit; 10. Compressor; 11. Second condensate pipe; 12. Concentrate pipe; 13. Elbow pipe; 14. Pump; 15. Diversion pipe; 16. Heating cylinder; 17. Discharge pipe; 18. Installation pipe; 19. Air inlet; 20. Cooling fan; 21. Heat preservation sleeve; 22. Heat dissipation fins; 23. Installation plate; 24. Vibrator; 25. Anti-backflow check valve. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-3 , the present invention provides an MVR evaporator, including a heater 1. The upper end of the heater 1 is fixedly communicated with a first conduit 2. One end of the first conduit 2 is fixedly communicated with an evaporator 3. The lower end of the heater 1 is fixedly communicated with a second conduit 4. One end of the second conduit 4 is fixedly communicated with a pre-heater 5. The upper and lower ends of the pre-heater 5 are respectively fixedly communicated with a feed pipe 6 and a first condensate pipe 7. A third conduit 8 is fixedly communicated between the pre-heater 5 and the heater 1. Secondary evaporation conduits 9 are fixedly communicated on both the evaporator 3 and the heater 1. The same compressor 10 is fixedly communicated between the two secondary evaporation conduits 9. A second condensate pipe 11 is fixedly communicated on the evaporator 3. The bottom of the evaporator 3 is fixedly communicated with a concentrate pipe 12. A heat recovery mechanism is connected between the concentrate pipe 12 and the pre-heater 5;

[0023] The heat recovery mechanism includes an elbow pipe 13 fixedly communicated with the concentrate pipe 12. One end of the elbow pipe 13 away from the concentrate pipe 12 is fixedly connected with a pump 14. The water inlet of the pump 14 is communicated with the elbow pipe 13. The water outlet of the pump 14 is fixedly communicated with a diversion pipe 15. The vertical outer wall of the pre-heater 5 is fixedly connected with a heating cylinder 16. One end of the diversion pipe 15 is fixedly communicated with the heating cylinder 16. The lower end of the heating cylinder 16 is fixedly communicated with a discharge pipe 17.

[0024] In the above embodiment, during use, the liquid to be evaporated enters the pre-heater 5 through the feed pipe 6. The pre-heater 5 pre-heats the liquid to be evaporated. The pre-heated liquid to be evaporated enters the heater 1 for heating. The heated liquid to be evaporated enters the evaporator 3 for evaporation. The provided compressor 10 re-transports the liquid to be evaporated that has not been completely evaporated and contains a large amount of heat back to the heater 1 for secondary heating and evaporation. The concentrated liquid generated in the evaporator 3 enters the concentrated liquid pipe 12. The control pump 14 is operated. The pump 14 transports the concentrated liquid to the heating cylinder 16 through the elbow pipe 13 and the diversion pipe 15. The heat in the concentrated liquid is transmitted to the pre-heater 5 through the heating cylinder 16. Thus, the liquid to be evaporated in the pre-heater 5 can be pre-heated by the heat in the concentrated liquid, the heat in the concentrated liquid can be recycled, effectively avoiding the waste of heat resources, improving the heat utilization efficiency of the MVR evaporator, and making the MVR evaporator more energy-saving and environment-friendly.

[0025] An installation pipe 18 is fixedly connected to the outer wall of the compressor 10. Two air inlet holes 19 are symmetrically formed in the pipe wall of the installation pipe 18. One end of the installation pipe 18 away from the compressor 10 is fixedly connected to a radiator fan 20. The wind direction of the radiator fan 20 faces away from the compressor 10. The provided radiator fan 20 can drive the air flow near the compressor 10, thereby dissipating heat from the compressor 10, reducing the operating temperature of the compressor 10, and improving the operating stability of the compressor 10.

[0026] A heat preservation sleeve 21 is fixedly sleeved outside the heating cylinder 16. The specific material of the heat preservation sleeve 21 is heat preservation cotton, which can increase the heat loss rate in the heating cylinder 16.

[0027] A plurality of heat dissipation fins 22 are fixedly connected to the outer wall of the compressor 10. All the plurality of heat dissipation fins 22 are located inside the installation pipe 18. The heat dissipation fins 22 can absorb the heat on the compressor 10, and thus, in cooperation with the radiator fan 20, can improve the heat dissipation efficiency.

[0028] Both the elbow pipe 13 and the diversion pipe 15 are heat preservation pipes, which can reduce the heat loss rate of the concentrated liquid in the elbow pipe 13 and the diversion pipe 15.

[0029] An installation plate 23 is fixedly connected to the vertical outer wall of the pre-heater 5. A vibrator 24 is fixedly connected to one side of the installation plate 23 away from the pre-heater 5. By driving the pre-heater 5 to vibrate through the vibrator 24, the smoothness of the liquid flow in the pre-heater 5 can be improved.

[0030] Anti-backflow check valves 25 are fixedly communicated with the first conduit 2, the second conduit 4, the third conduit 8, and the secondary evaporation conduit 9, which can improve the safety of using the MVR evaporator.

[0031] The bottom of the evaporator 3 is conical, and the diameter of the lower end of the evaporator 3 is smaller than that of the upper end, which facilitates the concentrated liquid in the evaporator 3 to flow into the concentrated liquid pipe 12.

[0032] Working principle: During use, the liquid to be evaporated enters the pre-heater 5 through the feed pipe 6. The pre-heater 5 pre-heats the liquid to be evaporated. The pre-heated liquid to be evaporated enters the heater 1 for heating. The heated liquid to be evaporated enters the evaporator 3 for evaporation. The provided compressor 10 re-transports the liquid to be evaporated that has not been completely evaporated and contains a large amount of heat back to the heater 1 for secondary heating and evaporation. The concentrated liquid generated in the evaporator 3 enters the concentrated liquid pipe 12. The control pump 14 is operated. The pump 14 transports the concentrated liquid to the heating cylinder 16 through the elbow pipe 13 and the diversion pipe 15. The heat in the concentrated liquid is transferred to the pre-heater 5 through the heating cylinder 16, so that the liquid to be evaporated in the pre-heater 5 can be pre-heated by the heat in the concentrated liquid, thereby enabling the recovery and utilization of the heat in the concentrated liquid, effectively avoiding the waste of heat resources, improving the heat utilization efficiency of the MVR evaporator, and making the MVR evaporator more energy-saving and environmentally friendly.

[0033] It should be noted that in this article, relational terms such as first and second 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An MVR evaporator, comprising a heater (1), characterized in that: The upper end of the heater (1) is fixedly communicated with a first conduit (2), one end of the first conduit (2) is fixedly communicated with an evaporator (3), the lower end of the heater (1) is fixedly communicated with a second conduit (4), one end of the second conduit (4) is fixedly communicated with a pre-heater (5), the upper and lower ends of the pre-heater (5) are respectively fixedly communicated with a feed pipe (6) and a first condensate pipe (7), a third conduit (8) is fixedly communicated between the pre-heater (5) and the heater (1), secondary evaporation conduits (9) are fixedly communicated with both the evaporator (3) and the heater (1), the same compressor (10) is fixedly communicated between the two secondary evaporation conduits (9), a second condensate pipe (11) is fixedly communicated with the evaporator (3), a concentrated liquid pipe (12) is fixedly communicated with the bottom of the evaporator (3), and a heat recovery mechanism is connected between the concentrated liquid pipe (12) and the pre-heater (5); The heat recovery mechanism includes an elbow (13) fixedly communicated with the concentrated liquid pipe (12), one end of the elbow (13) far from the concentrated liquid pipe (12) is fixedly connected with a pump (14), the water inlet of the pump (14) is communicated with the elbow (13), the water outlet of the pump (14) is fixedly communicated with a diversion pipe (15), a heating cylinder (16) is fixedly connected with the vertical outer wall of the pre-heater (5), one end of the diversion pipe (15) is fixedly communicated with the heating cylinder (16), and a discharge pipe (17) is fixedly communicated with the lower end of the heating cylinder (16).

2. The MVR evaporator according to claim 1, wherein: An installation pipe (18) is fixedly connected with the outer wall of the compressor (10), two air inlet holes (19) are symmetrically formed in the pipe wall of the installation pipe (18), one end of the installation pipe (18) far from the compressor (10) is fixedly connected with a cooling fan (20), and the wind direction of the cooling fan (20) faces away from the compressor (10).

3. The MVR evaporator according to claim 2, wherein: A heat preservation sleeve (21) is fixedly sleeved outside the heating cylinder (16), and the specific material of the heat preservation sleeve (21) is heat preservation cotton.

4. A MVR evaporator according to claim 3, characterized in that: A plurality of heat dissipation fins (22) are fixedly connected with the outer wall of the compressor (10), and all the heat dissipation fins (22) are located inside the installation pipe (18).

5. The MVR evaporator according to claim 4, characterized in that: Both the elbow (13) and the diversion pipe (15) are heat preservation pipes.

6. The MVR evaporator according to claim 5, wherein: An installation plate (23) is fixedly connected with the vertical outer wall of the pre-heater (5), and a vibrator (24) is fixedly connected with one side of the installation plate (23) far from the pre-heater (5).

7. The MVR evaporator according to claim 6, wherein: Anti-backflow check valves (25) are fixedly communicated with the first conduit (2), the second conduit (4), the third conduit (8) and the secondary evaporation conduits (9).

8. The MVR evaporator according to claim 7, wherein: The bottom of the evaporator (3) is conical, and the diameter of the lower end of the evaporator (3) is smaller than that of the upper end.

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