Steam condensation structure of MVR evaporator

Abstract

The utility model discloses a steam condensation structure of an MVR (Mechanical Vapor Recompression) evaporator, which belongs to the technical field of MVR evaporators and comprises a condensation box, and one end of the condensation box is fixedly sleeved with a steam ingress pipe. According to the utility model, wastewater to be treated is guided into the curved water guide groove in the condensation heat exchange box through the drainage mechanism, and steam is guided into the inner cavity of the condensation box through the steam guide-in pipe, so that the steam is in contact with the condensation heat exchange box, and meanwhile, the steam flows in the curved steam guide groove; steam is cooled through heat exchange between waste water and steam in the curved water guide groove, so that the steam is condensed, the steam can be condensed for multiple times through the condensation heat exchange boxes, the steam is ensured to be in complete contact with the condensation heat exchange boxes through curved movement of the steam in the curved water guide groove, the steam condensation quality is ensured, and the steam condensation efficiency is improved. Meanwhile, to-be-treated wastewater can be preheated, so that the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of MVR evaporator technology, and more specifically, to a steam condensation structure for an MVR evaporator. Background Technology

[0002] MVR (Mechanical Vapor Recompression) is an energy-saving technology that reuses the energy of the secondary steam it generates, thereby reducing the demand for external energy. Its working process involves compressing low-temperature steam through a compressor, increasing its temperature, pressure, and enthalpy, and then condensing it in a heat exchanger to fully utilize the latent heat of the steam. Except during startup, the secondary steam from the evaporator is compressed by the compressor, increasing its pressure, temperature, and enthalpy, and then sent to the heating chamber of the evaporator as heating steam to maintain the feed liquid at a boiling state, while the heating steam itself condenses into water. The steam that would otherwise be wasted is fully utilized, recovering latent heat and improving thermal efficiency. The main function of steam condensation in an MVR evaporator is to condense the evaporated secondary steam through the condenser to obtain a water-like liquid. The condenser uses a counter-current design, but existing steam condensation structures typically only condense the steam once, which is not conducive to ensuring complete condensation and easily leads to the waste of heat in the steam. Therefore, we propose a steam condensation structure for an MVR evaporator. Utility Model Content

[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a steam condensation structure for an MVR evaporator.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A steam condensation structure for an MVR evaporator includes a condenser box. A steam inlet pipe is fixedly connected to one end of the condenser box, and an exhaust pipe is fixedly connected to the other end. Multiple condensing heat exchange boxes are fixedly connected to the inner cavity of the condenser box. A portion of the condensing heat exchange boxes are fixedly connected to the top surface of the inner cavity, and another portion are fixedly connected to the bottom surface. Both sides of each condensing heat exchange box are connected to the inner wall of the condenser box. A curved steam guide groove is provided within the inner cavity of the condenser box and between the multiple condensing heat exchange boxes. Curved water guide grooves are provided within the inner cavities of each of the multiple condensing heat exchange boxes. Multiple heat exchange fins are fixedly connected to the end faces of each of the multiple condensing heat exchange boxes. A water supply mechanism is provided on one side of the condenser box, and a drainage mechanism is provided on the other side. Multiple electrically controlled valves are fixedly installed on the bottom surface of the condenser box, with the tops of each valve extending into the inner cavity of the condenser box. A collection mechanism is provided at the bottom of the condenser box.

[0006] As a preferred embodiment of the present invention, the water supply mechanism includes multiple water inlet pipes fixedly sleeved on one side of the condenser box, one end of each of the multiple water inlet pipes being fixedly sleeved to the inner cavity of multiple condenser heat exchange boxes, and the other end of each of the multiple water inlet pipes being fixedly sleeved with a water distribution pipe, the end of which is fixedly connected to a water guide pipe.

[0007] As a preferred embodiment of the present invention, the drainage mechanism includes a plurality of water outlet pipes fixedly sleeved on the other side of the condenser box, one end of each of the plurality of water outlet pipes being fixedly sleeved to the inner cavity of a plurality of condenser heat exchange boxes, the other end of the plurality of water outlet pipes being fixedly sleeved to a water collection pipe, and the end of the water collection pipe being fixedly connected to a drain pipe.

[0008] As a preferred embodiment of this utility model, the collection mechanism includes multiple hanging rods fixedly connected to the bottom surface of the condensation tank, with a placement seat fixedly connected to the bottom end of the multiple hanging rods, and a water receiving tank placed on the top surface of the placement seat, the water receiving tank being located directly below multiple electrically controlled valves.

[0009] As a preferred embodiment of this utility model, a controller is fixedly installed on the side of the condenser box, and the controller is electrically connected to the electric control valve.

[0010] As a preferred embodiment of this utility model, the bottom surface of the condenser box is fixedly connected with multiple support legs.

[0011] The advantages of this invention are as follows: The wastewater to be treated is guided into the curved water guide channel in the condensing heat exchanger through the drainage mechanism, and steam is guided into the inner cavity of the condensing heat exchanger through the steam inlet pipe, allowing the steam to come into contact with the condensing heat exchanger. Simultaneously, the steam flows in the curved steam guide channel, and the heat exchange between the wastewater and steam in the curved water guide channel cools the steam, thus achieving condensation. Furthermore, multiple condensing heat exchangers allow for multiple condensation processes. The curved movement of the steam in the curved steam guide channel ensures complete contact with the condensing heat exchanger, guaranteeing the quality of steam condensation. Simultaneously, it can preheat the wastewater to be treated, making it highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the front of this utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of the back of this utility model;

[0014] Figure 3 This is a cross-sectional schematic diagram of the condenser box of this utility model;

[0015] Figure 4 This is a cross-sectional schematic diagram of the condensing heat exchanger box of this utility model.

[0016] The following are the labels in the diagram: 1. Condensation box; 2. Steam inlet pipe; 3. Exhaust pipe; 4. Condensation heat exchange box; 5. Curved water guide channel; 6. Curved steam guide channel; 7. Heat exchange fins; 8. Water supply mechanism; 9. Drainage mechanism; 10. Collection mechanism; 11. Electrically controlled valve; 13. Inlet pipe; 14. Distribution pipe; 15. Lead pipe; 16. Outlet pipe; 17. Collection pipe; 18. Drain pipe; 19. Hanging rod; 20. Placement seat; 21. Water receiving tank; 22. Support leg; 23. Controller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example:

[0021] Please see Figure 1-4A steam condensation structure for an MVR evaporator includes a condenser box 1. A steam inlet pipe 2 is fixedly connected to one end of the condenser box 1, and an exhaust pipe 3 is fixedly connected to the other end. Multiple condensing heat exchange boxes 4 are fixedly connected to the inner cavity of the condenser box 1. Some of the condensing heat exchange boxes 4 are fixedly connected to the top surface of the inner cavity of the condenser box 1, and others are fixedly connected to the bottom surface of the inner cavity of the condenser box 1. The two sides of each condensing heat exchange box 4 are connected to the inner wall of the condenser box 1. A curved steam guide groove 6 is provided between multiple condensing heat exchange boxes 4. A curved water guide groove 5 is provided in the inner cavity of each of the multiple condensing heat exchange boxes 4. Multiple heat exchange fins 7 are fixedly connected to the end face of each of the multiple condensing heat exchange boxes 4. A water supply mechanism 8 is provided on one side of the condensing box 1, and a drainage mechanism 9 is provided on the other side of the condensing box 1. Multiple electrically controlled valves 11 are fixedly installed on the bottom surface of the condensing box 1. The top of each of the multiple electrically controlled valves 11 extends into the inner cavity of the condensing box 1. A collection mechanism 10 is provided at the bottom of the condensing box 1.

[0022] For details, please refer to Figure 1 and Figure 4 The water supply mechanism 8 includes multiple water inlet pipes 13 fixedly sleeved on one side of the condenser box 1. One end of each water inlet pipe 13 is fixedly sleeved to the inner cavity of multiple condenser heat exchange boxes 4. The other end of each water inlet pipe 13 is fixedly sleeved with a water distribution pipe 14. The end of the water distribution pipe 14 is fixedly connected to a water inlet pipe 15.

[0023] In this embodiment, the wastewater used for condensation is introduced into the distribution pipe 14 through the water inlet pipe 15, so that the wastewater used for condensation can be introduced into the curved water guide trough 5 in the condensation heat exchange box 4 through the distribution pipe 14 and the water inlet pipe 13. In addition, the wastewater used for condensation can be wastewater to be put into the MVR evaporator for treatment, so as to preheat the wastewater.

[0024] For details, please refer to Figure 1 and Figure 4 The drainage mechanism 9 includes multiple water outlet pipes 16 fixedly sleeved on the other side of the condenser box 1. One end of each water outlet pipe 16 is fixedly sleeved to the inner cavity of multiple condenser heat exchange boxes 4. The other end of each water outlet pipe 16 is fixedly sleeved with a water collection pipe 17. The end of the water collection pipe 17 is fixedly connected to a drain pipe 18.

[0025] In this embodiment, the water used for condensation is collected through the water collection pipe 17 and discharged through the drain pipe 18.

[0026] For details, please refer to Figure 1 and Figure 2 The collection mechanism 10 includes multiple rods 19 fixedly connected to the bottom surface of the condensation box 1. The bottom end of the multiple rods 19 is fixedly connected to a placement seat 20. A water receiving tank 21 is placed on the top surface of the placement seat 20. The water receiving tank 21 is located directly below the multiple electrically controlled valves 11.

[0027] In this embodiment, the condensate discharged from the electrically controlled valve 11 is collected using the water collection tank 21.

[0028] For details, please refer to Figure 1 and Figure 3 A controller 23 is fixedly installed on the side of the condenser box 1, and the controller 23 is electrically connected to the solenoid valve 11.

[0029] In this embodiment, the controller 23 and the solenoid valve 11 are powered by an external power supply, and the controller 23 controls the solenoid valve 11.

[0030] For details, please refer to Figure 2 The bottom surface of the condenser box 1 is fixedly connected with multiple support legs 22.

[0031] In this embodiment, the condenser box 1 is supported by the support leg 22.

[0032] Working Principle: During operation, steam generated in the MVR evaporator is first introduced into the inner cavity of the steam inlet pipe 2. Simultaneously, wastewater to be treated is introduced into the distribution pipe 14 through the water inlet pipe 15. The wastewater in the distribution pipe 14 is then guided from the inlet pipe 13 into the curved water guide channel 5 inside the condensing heat exchanger 4, allowing the wastewater to flow within the curved water guide channel 5. Then, the steam introduced into the inner cavity of the condensing tank 1 comes into contact with multiple condensing heat exchangers 4, causing the steam to move within the curved steam guide channel 6. This allows heat exchange between the wastewater and the steam in the curved water guide channel 5, thereby... The steam is cooled and turns into condensate, which accumulates at the bottom of the inner cavity of the condenser box 1. Then, the wastewater after heat exchange in the curved water guide channel 5 is introduced from the outlet pipe 16 into the water collection pipe 17, and the wastewater in the water collection pipe 17 is introduced into the MVR evaporator through the drain pipe 18 for treatment. Thus, the heat of the steam is used to pre-treat the wastewater and condense the steam. Finally, when the steam is no longer condensed, the controller 23 controls the electric control valve 11 to open, so that the water condensed in the lower part of the inner cavity of the condenser box 1 is introduced into the water receiving tank 21 for collection.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A steam condensation structure for an MVR evaporator, comprising a condensation chamber (1), characterized in that: A steam inlet pipe (2) is fixedly sleeved at one end of the condenser (1), and an exhaust pipe (3) is fixedly sleeved at the other end of the condenser (1). Multiple condensing heat exchange boxes (4) are fixedly connected to the inner cavity of the condenser (1). A portion of the condensing heat exchange boxes (4) are fixedly connected to the top surface of the inner cavity of the condenser (1), and another portion are fixedly connected to the bottom surface of the inner cavity of the condenser (1). The two sides of each condensing heat exchange box (4) are respectively connected to the inner wall of the condenser (1). The inner cavity of the condenser (1) is located within the multiple condensing heat exchange boxes (4). A curved steam guide groove (6) is provided between the condenser (1) and a curved water guide groove (5) is provided in the inner cavity of each of the multiple condenser heat exchange boxes (4). Multiple heat exchange fins (7) are fixedly connected to the end face of each of the multiple condenser heat exchange boxes (4). A water supply mechanism (8) is provided on one side of the condenser (1) and a drainage mechanism (9) is provided on the other side of the condenser (1). Multiple electrically controlled valves (11) are fixedly installed on the bottom surface of the condenser (1). The top of each of the multiple electrically controlled valves (11) extends into the inner cavity of the condenser (1). A collection mechanism (10) is provided at the bottom of the condenser (1).

2. The steam condensation structure of an MVR evaporator according to claim 1, characterized in that: The water supply mechanism (8) includes multiple water inlet pipes (13) fixedly sleeved on one side of the condenser box (1). One end of each of the multiple water inlet pipes (13) is fixedly sleeved to the inner cavity of multiple condenser heat exchange boxes (4). The other end of each of the multiple water inlet pipes (13) is fixedly sleeved with a water distribution pipe (14). The end of the water distribution pipe (14) is fixedly connected to a water inlet pipe (15).

3. The steam condensation structure of an MVR evaporator according to claim 1, characterized in that: The drainage mechanism (9) includes multiple water outlet pipes (16) fixedly sleeved on the other side of the condenser box (1). One end of each of the multiple water outlet pipes (16) is fixedly sleeved to the inner cavity of multiple condenser heat exchange boxes (4). The other end of each of the multiple water outlet pipes (16) is fixedly sleeved with a water collection pipe (17). The end of the water collection pipe (17) is fixedly connected to a drain pipe (18).

4. The steam condensation structure of an MVR evaporator according to claim 1, characterized in that: The collection mechanism (10) includes multiple rods (19) fixedly connected to the bottom surface of the condenser box (1). The bottom ends of the multiple rods (19) are fixedly connected to a placement seat (20). A water receiving tank (21) is placed on the top surface of the placement seat (20). The water receiving tank (21) is located directly below multiple electrically controlled valves (11).

5. The steam condensation structure of an MVR evaporator according to claim 1, characterized in that: A controller (23) is fixedly installed on the side of the condenser (1), and the controller (23) is electrically connected to the electric control valve (11).

6. The steam condensation structure of an MVR evaporator according to claim 1, characterized in that: The bottom surface of the condenser box (1) is fixedly connected with multiple support legs (22).

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