High-efficiency salt-containing wastewater MVR (Mechanical Vapor Recompression) evaporator

Abstract

The utility model discloses a high-efficiency salt-containing wastewater MVR (mechanical vapor recompression) evaporator which comprises an evaporator main body, the interior of the evaporator main body is hollow, the interior of the evaporator main body is divided into a heating cavity and a compression cavity through a partition plate, and the heating cavity is communicated with the compression cavity through a connecting valve; the compression structure is arranged at the top of the evaporator main body, and the compression end of the compression structure is arranged in the compression cavity; the heating structure is arranged in the heating cavity, and the salt-containing wastewater in the heating cavity is evaporated through the heating structure. The heating cavity and the compression cavity are separated through the partition plate in the evaporator main body, so that the evaporation process and the compression process are independently carried out, and the evaporation efficiency is improved; the compression end is communicated with the heating cavity through the connecting valve, so that pressurized steam can quickly enter the heating cavity, and the evaporation efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to an evaporator, in particular to a high-efficiency MVR evaporator for saline wastewater. Background Art

[0002] Evaporation technology is an important method for treating saline wastewater. Especially in applications where efficient water recovery and salt concentration are required, mechanical vapor recompression (MVR) evaporators are widely used due to their high efficiency and low energy consumption characteristics. Traditional evaporators often face problems such as high energy consumption, low efficiency, and complex operation when treating high-salt wastewater. In the prior art, there is still a large room for improvement in aspects such as how to improve the efficiency and energy utilization rate of the evaporator and reduce the operating cost. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a high-efficiency MVR evaporator for saline wastewater to solve the problems existing in the background art.

[0004] The high-efficiency MVR evaporator for saline wastewater of the utility model is realized through the following technical solutions, including:

[0005] An evaporator main body, the interior of the evaporator main body is hollow and is divided into a heating chamber and a compression chamber by a partition, and the heating chamber and the compression chamber are communicated through a connecting valve;

[0006] A compression structure, the compression structure is arranged at the top of the evaporator main body, and the compression end of the compression structure is placed in the compression chamber;

[0007] A heating structure, the heating structure is arranged in the heating chamber, and the saline wastewater inside is evaporated by the heating structure.

[0008] As a preferred technical solution, the compression structure includes a lifting motor and a compression plate arranged at the top of the evaporator main body;

[0009] The compression plate is placed in the compression chamber, and the output shaft of the lifting motor passes through the top of the evaporator main body and is connected to the compression plate; a sealing silica gel is arranged at the compression end of the compression plate to prevent steam from running out from the side of the compression plate.

[0010] As a preferred technical solution, a steam pipeline is arranged on one side of the compression chamber, and the other end of the steam pipeline is communicated with the heating chamber; thus, the pressurized steam is sent into the heating chamber; a steam valve is arranged on the steam pipeline.

[0011] As a preferred technical solution, the heating structure includes an evaporation seat and heating sheets;

[0012] The evaporation seat is installed at the top of the heating chamber, and the heating sheets are installed on the evaporation seat, and the saline wastewater in the evaporation seat is heated by the heating sheets;

[0013] The outer side of the evaporation base is in contact with the pressurized steam in the heating chamber, thereby playing a role in assisting heating.

[0014] As a preferred technical solution, it further includes a salt-containing wastewater inlet pipe, and the salt-containing wastewater inlet pipe passes through the heating chamber and is placed inside the evaporation base; a water inlet valve is provided on the salt-containing wastewater inlet pipe.

[0015] As a preferred technical solution, a drain pipe is provided at the bottom of the evaporation base, and the drain pipe passes through the main body of the evaporator; a drain valve is provided on the drain pipe.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, the heating chamber and the compression chamber are separated by a partition plate inside the main body of the evaporator, so that the evaporation and compression processes are carried out independently, improving the evaporation efficiency; the compression end and the heating chamber are connected by a connection valve, enabling the pressurized steam to quickly enter the heating chamber, further enhancing the evaporation efficiency.

[0018] 2. The steam pipeline provided on one side of the compression chamber in the present utility model leads the compressed steam into the heating chamber, realizing the reuse of steam, and further improving the energy utilization efficiency; the setting of the steam valve facilitates the control of steam flow, ensuring the stability and controllability of the system operation.

[0019] 3. The heating structure in the present utility model includes an evaporation base and heating sheets, which can efficiently heat the salt-containing wastewater and cause it to evaporate quickly; the outer side of the evaporation base is in contact with the pressurized steam, playing a role in assisting heating and further improving the heating efficiency. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 It is a structural schematic diagram of the evaporation base of the present utility model;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the present utility model.

[0024] Explanation of the reference numerals in the drawings:

[0025] 1. Evaporator main body; 2. Compression structure; 3. Heating chamber; 4. Compression chamber; 5. Valve; 6. Lifting motor; 7. Compression plate; 8. Sealing silicone; 9. Steam pipe; 10. Steam valve; 11. Evaporation base; 12. Heating element; 13. Salty wastewater inlet pipe; 14. Inlet valve; 15. Drain pipe; 16. Drain valve. Detailed implementation manner

[0026] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0027] As Figures 1 - 3 shown, a high-efficiency MVR evaporator for salty wastewater of the present utility model includes:

[0028] An evaporator main body 1, the interior of the evaporator main body 1 is hollow and is divided into a heating chamber 3 and a compression chamber 4 by a partition, and the heating chamber 3 and the compression chamber 4 are communicated through a connecting valve 5; wherein, the heating chamber 3 is mainly used for heating and evaporating the salty wastewater, while the compression chamber 4 is responsible for compressing the steam to increase the pressure and temperature of the steam; when it is necessary to send the steam in the compression chamber 4 into the heating chamber 3, just open the connecting valve 5 to realize the circulation of the steam.

[0029] A compression structure 2, the compression structure 2 is arranged on the top of the evaporator main body 1, and the compression end of the compression structure 2 is placed in the compression chamber 4;

[0030] A heating structure, the heating structure is arranged in the heating chamber 3, and the salty wastewater inside is evaporated by the heating structure.

[0031] In this embodiment, the compression structure 2 includes a lifting motor 6 and a compression plate 7 arranged on the top of the evaporator main body 1;

[0032] The compression plate 7 is placed in the compression chamber 4, and the output shaft of the lifting motor 6 passes through the top of the evaporator main body 1 and is connected to the compression plate 7; a sealing silicone 8 is arranged at the compression end of the compression plate 7 to prevent the steam from running out from the side of the compression plate 7.

[0033] In this embodiment, a steam pipe 9 is arranged on one side of the compression chamber 4, and the other end of the steam pipe 9 is communicated with the heating chamber 3; thereby sending the pressurized steam into the heating chamber 3; a steam valve 10 is arranged on the steam pipe 9 to facilitate the control of the steam flow rate.

[0034] In this embodiment, the heating structure includes an evaporation base 11 and a heating element 12;

[0035] The evaporation base 11 is installed at the top of the heating chamber 3, and the heating sheet 12 is installed on the evaporation base 11. The saline wastewater in the evaporation base 11 is heated by the heating sheet 12. This heating method not only has high efficiency but also can ensure that the wastewater is evenly heated, avoiding local overheating or overcooling phenomena.

[0036] The outer side of the evaporation base 11 is in contact with the pressurized steam in the heating chamber 3, thereby playing an auxiliary heating role.

[0037] In addition, it further includes a saline wastewater inlet pipe 13, and the saline wastewater inlet pipe 13 passes through the heating chamber 3 and is placed in the evaporation base 11; an inlet valve 14 is provided on the saline wastewater inlet pipe 13, a drain pipe 15 is provided at the bottom of the evaporation base 11, and the drain pipe 15 passes through the evaporator main body 1; a drain valve 16 is provided on the drain pipe 15 to accurately control the inflow and outflow of the wastewater.

[0038] The working principle is as follows:

[0039] In the present utility model, the heating chamber and the compression chamber are separated by a partition in the evaporator main body, so that the evaporation and compression processes are carried out independently, improving the evaporation efficiency; the compression end and the heating chamber are connected and communicated through a connection valve, enabling the pressurized steam to quickly enter the heating chamber and further enhancing the evaporation efficiency.

[0040] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A high-efficiency saline wastewater MVR evaporator, characterized in that: include: An evaporator body (1), wherein the interior of the evaporator body (1) is hollow and is divided into a heating chamber (3) and a compression chamber (4) by a partition, and the heating chamber (3) and the compression chamber (4) are connected via a connecting valve (5); A compression structure (2), wherein the compression structure (2) is arranged on the top of the evaporator body (1), and the compression end of the compression structure (2) is placed in the compression chamber (4); A heating structure is provided in the heating chamber (3), and the salt-containing wastewater inside is evaporated by the heating structure.

2. The high-efficiency saline wastewater MVR evaporator according to claim 1 is characterized in that: The compression structure (2) comprises a lifting motor (6) and a compression plate (7) arranged on the top of the evaporator body (1); The compression plate (7) is placed in the compression chamber (4), and the output shaft of the lifting motor (6) passes through the top of the evaporator body (1) and is connected to the compression plate (7); the compression end of the compression plate (7) is provided with sealing silica gel (8) to prevent steam from escaping from the side of the compression plate (7).

3. The high-efficiency saline wastewater MVR evaporator according to claim 1 is characterized in that: A steam pipe (9) is provided on one side of the compression chamber (4), and the other end of the steam pipe (9) is connected to the heating chamber (3); pressurized steam is then sent into the heating chamber (3); and a steam valve (10) is provided on the steam pipe (9).

4. The high-efficiency saline wastewater MVR evaporator according to claim 1 is characterized in that: The heating structure comprises an evaporation seat (11) and a heating plate (12); The evaporation seat (11) is installed on the top of the heating chamber (3), and the heating plate (12) is installed on the evaporation seat (11), and the salt-containing wastewater in the evaporation seat (11) is heated by the heating plate (12); The outer side of the evaporation seat (11) contacts the pressurized steam in the heating chamber (3), thereby playing an auxiliary heating role.

5. The high-efficiency saline wastewater MVR evaporator according to claim 1 is characterized in that: It also comprises a saline wastewater inlet pipe (13), which passes through the heating chamber (3) and is placed in the evaporation seat (11); and a water inlet valve (14) is arranged on the saline wastewater inlet pipe (13).

6. The high-efficiency saline wastewater MVR evaporator according to claim 4 is characterized in that: A drainage pipe (15) is provided at the bottom of the evaporation seat (11), and the drainage pipe (15) is provided through the evaporator body (1); a drainage valve (16) is provided on the drainage pipe (15).

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