High-salt wastewater treatment MVR evaporator heat insulation structure

Abstract

The utility model relates to MVR evaporator technical field, concretely relates to a kind of heat insulation structure for high-salinity wastewater treatment MVR evaporator, including evaporator boiler and middle heat insulation component, evaporator boiler top is fixedly connected with steam pipe, middle heat insulation component includes heat insulation cotton, annular pipeline and arc heat-conducting block, heat insulation cotton cladding annular pipeline and arc heat-conducting block, annular pipeline two ends are respectively fixedly connected with water replenishing pipe and no.1 electromagnetic valve, no.1 electromagnetic valve is connected with water inlet pipe, water inlet pipe is inserted into evaporator boiler inside, water replenishing pipe is fixedly connected with water replenishing pump at the end away from evaporator boiler.The utility model passes through arc heat-conducting block and conduction to annular pipeline with the waste heat of boiler outer wall, utilize the heat absorption of the wastewater to be handled flowing in annular pipeline, both realize the cooling of boiler outer side wall, reduce waste heat to outside emission, can preheat wastewater again, reduce the energy consumption required for subsequent boiler heating.

Description

Technical Field

[0001] This utility model relates to the field of MVR evaporator technology, specifically to a heat insulation structure for an MVR evaporator for treating high-salt wastewater. Background Technology

[0002] In the field of high-salinity wastewater treatment, the boiler, as a key component for energy conversion and transfer, directly affects the overall energy consumption and operating efficiency due to the performance of its insulation structure. Existing MVR evaporators for high-salinity wastewater treatment generally employ a design where traditional insulation materials are directly applied to the boiler's outer wall. While this structure can delay heat transfer to some extent, the boiler's continuous high-intensity operation during high-salinity wastewater treatment results in the boiler's outer wall maintaining a consistently high temperature, leading to significant waste heat. Furthermore, the evaporator boiler requires frequent replenishment of wastewater. Current replenishment methods, whether directly injecting ambient-temperature wastewater for internal boiler heating or preheating via external equipment, both consume additional energy. Because existing traditional insulation materials only passively block heat transfer, and the insulation structure is independent of the replenishment system, the heat energy on the boiler's outer wall cannot be effectively recovered and is directly dissipated to the outside, ultimately resulting in a high temperature on the evaporator boiler's outer wall.

[0003] Therefore, a heat insulation structure for a high-salt wastewater treatment MVR evaporator is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a heat insulation structure for a high-salt wastewater treatment MVR evaporator. An arc-shaped heat-conducting block transfers waste heat from the boiler's outer wall to a ring-shaped pipe. The wastewater flowing within the ring-shaped pipe absorbs this heat, achieving both cooling of the boiler's outer wall and reducing waste heat loss to the outside. It also preheats the wastewater, reducing energy consumption for subsequent boiler heating. Simultaneously, insulation cotton covering the ring-shaped pipe and arc-shaped heat-conducting block further hinders heat transfer. Combined with the active heat absorption of the ring-shaped pipe, this enhances the overall insulation effect, preventing the boiler's outer wall from maintaining a high temperature. This solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes an evaporator boiler and a central heat insulation component. A steam pipe is fixedly connected to the top of the evaporator boiler. The central heat insulation component includes heat insulation cotton, an annular pipe, and an arc-shaped heat-conducting block. The heat insulation cotton covers the annular pipe and the arc-shaped heat-conducting block. A water supply pipe and a solenoid valve are fixedly connected to both ends of the annular pipe, respectively. The solenoid valve is connected to a water inlet pipe, which is inserted into the evaporator boiler. A water supply pump is fixedly connected to the end of the water supply pipe furthest from the evaporator boiler.

[0006] Preferably, the annular pipe is wound around the outside of the evaporator boiler, one side of the arc-shaped heat-conducting block is fixedly connected to the outer wall of the evaporator boiler, and the other side of the arc-shaped heat-conducting block is fixedly connected to the outer wall of the annular pipe.

[0007] Preferably, the annular pipe is a corrosion-resistant pipe, and a temperature sensor is fixedly installed at one end of the annular pipe near the first solenoid valve.

[0008] Preferably, the first solenoid valve is a three-way valve, and the other two ports of the first solenoid valve are respectively connected to the water inlet pipe and the first connecting pipe, and the other end of the first connecting pipe is connected to a buffer tank.

[0009] Preferably, the bottom of the buffer tank is connected to a second connecting pipe, and the other end of the second connecting pipe is connected to the water inlet pipe.

[0010] Preferably, a second solenoid valve is connected to one end of the water supply pipe near the water supply pump.

[0011] Preferably, there are multiple arc-shaped heat-conducting blocks, with one side of the arc-shaped heat-conducting block close to the surface of the annular pipe, the arc-shaped heat-conducting block being inclined along the winding direction of the annular pipe, and the space between the arc-shaped heat-conducting block and the outer wall of the evaporator boiler being filled with thermally conductive silicone.

[0012] Preferably, a circulating water pump is fixedly installed on the second connecting pipe, and a third solenoid valve is installed on the side of the second connecting pipe near the water supply pipe.

[0013] Compared with the prior art, this utility model provides a heat insulation structure for an MVR evaporator for high-salt wastewater treatment, which has the following beneficial effects: 1. The waste heat from the boiler's outer wall is conducted to the annular pipe through the arc-shaped heat-conducting block. The wastewater flowing in the annular pipe absorbs the heat, which not only cools the outer wall of the boiler and reduces the waste heat dissipation to the outside, but also preheats the wastewater, reducing the energy consumption required for subsequent boiler heating. At the same time, the annular pipe and the arc-shaped heat-conducting block are covered with insulation cotton to further hinder heat transfer. Combined with the active heat absorption effect of the annular pipe, the overall insulation effect is improved, and the high temperature of the outer wall of the boiler is prevented.

[0014] 2. By coordinating multiple solenoid valves and buffer tanks, the system can switch between two modes: direct water replenishment and circulating preheating water replenishment. When circulating preheating is used, the preheated wastewater is stored in the buffer tank, and the temperature of the wastewater in the buffer tank is increased through multiple cycles. This overcomes the shortcomings of traditional insulation materials, which can only provide passive insulation and are independent of the water replenishment system, effectively improving energy utilization and reducing the overall energy consumption of the equipment. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 An isometric structural diagram of the insulation structure of the MVR evaporator for high-salt wastewater treatment according to this utility model; Figure 2 An enlarged structural schematic diagram of the insulation structure of the MVR evaporator for high-salt wastewater treatment according to this utility model; Figure 3 A schematic diagram of the central insulation component structure provided for the insulation structure of the MVR evaporator for high-salt wastewater treatment of this utility model. Figure 4 A schematic diagram of the connection between the No. 1 connecting pipe and the No. 1 solenoid valve for the heat insulation structure of the MVR evaporator for high-salt wastewater treatment of this utility model.

[0016] In the diagram: 1. Evaporator boiler; 2. Steam pipe; 3. Central insulation component; 4. Water supply pipe; 5. Solenoid valve No. 1; 6. Water inlet pipe; 7. Buffer tank; 8. Water supply pump; 9. Temperature sensor; 10. Connecting pipe No. 1; 11. Connecting pipe No. 2; 12. Solenoid valve No. 2; 13. Circulating water pump; 14. Solenoid valve No. 3; 15. Thermal conductive silicone; 301. Insulation cotton; 302. Circular pipeline; 303. Arc-shaped heat-conducting block. Detailed Implementation

[0017] 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. Example:

[0018] Please see Figure 1 - Figure 4This embodiment describes a heat insulation structure for a high-salt wastewater treatment MVR evaporator, including an evaporator boiler 1 and a central heat insulation component 3. A steam pipe 2 is fixedly connected to the top of the evaporator boiler 1. The central heat insulation component 3 includes heat insulation cotton 301, an annular pipe 302, and arc-shaped heat-conducting blocks 303. The heat insulation cotton 301 covers the annular pipe 302 and the arc-shaped heat-conducting blocks 303. Multiple arc-shaped heat-conducting blocks 303 are present, with one side of the arc-shaped heat-conducting block 303 close to the surface of the annular pipe 302. The arc-shaped heat-conducting blocks 303 are inclined along the winding direction of the annular pipe 302. Thermally conductive silicone 15 fills the space between the arc-shaped heat-conducting blocks 303 and the outer wall of the evaporator boiler 1. The metal arc-shaped heat-conducting blocks 303 are combined with the thermally conductive silicone 15. It can efficiently conduct heat from the outer wall of the evaporator boiler 1 to the annular pipe 302. The annular pipe 302 is wound around the outside of the evaporator boiler 1. The annular pipe 302 is a corrosion-resistant pipe. The ambient temperature wastewater flowing inside the pipe is lower than the temperature of the tank and can absorb heat, thereby reducing the temperature of the outer wall of the evaporator boiler 1. The heat insulation cotton 301 covers the annular pipe 302 and the arc-shaped heat-conducting block 303, which can delay the heat conduction to the outside. Because the wastewater inside the annular pipe 302 absorbs heat, the temperature received by the heat insulation cotton 301 is reduced, thereby reducing its outer temperature. A temperature sensor 9 is fixedly installed at the end of the annular pipe 302 near the first solenoid valve 5, which can monitor the temperature of the wastewater inside the pipe to understand the heat absorption. By using the active heat absorption of wastewater combined with the passive heat insulation of the heat insulation cotton, a good heat insulation effect is achieved. The two ends of the ring pipe 302 are respectively fixedly connected to the water supply pipe 4 and the first solenoid valve 5. The first solenoid valve 5 is connected to the water inlet pipe 6, which is inserted into the evaporator boiler 1. The end of the water supply pipe 4 away from the evaporator boiler 1 is fixedly connected to the water supply pump 8. The end of the water supply pipe 4 near the water supply pump 8 is connected to the second solenoid valve 12. The first solenoid valve 5 is a three-way valve. The other two ports of the first solenoid valve 5 are respectively connected to the water inlet pipe 6 and the first connecting pipe 10. The water supply pump 8 provides power for the flow of wastewater. The second solenoid valve 12 controls the opening and closing of the water supply pipe 4. The first solenoid valve 5 can control the water flow to the water inlet pipe 6. When directly replenishing water into the evaporator boiler 1, open the second solenoid valve 12 and close the third solenoid valve 14. Control the first solenoid valve 5 to connect the inlet pipe 6 and the ring pipe 302, and start the water replenishment pump 8. The ambient temperature wastewater to be replenished is pumped into the water replenishment pipe 4 through the water replenishment pump 8, and then flows into the ring pipe 302. At this time, the heat emitted by the evaporator boiler 1 is conducted to the ring pipe 302 through the arc-shaped heat-conducting block 303 and the heat-conducting silicone 15, and is absorbed by the wastewater in the pipe, thus preheating the wastewater. At the same time, the temperature of the outer wall of the evaporator boiler 1 is reduced. The heat insulation cotton 301 further hinders the heat transfer. The preheated wastewater enters the inlet pipe 6 through the first solenoid valve 5 and finally flows into the interior of the evaporator boiler 1. This process utilizes the wastewater to be replenished to absorb the residual heat, which not only achieves heat insulation but also preheats the wastewater, reduces the energy required for boiler heating, and improves energy utilization. The other end of the first connecting pipe 10 is connected to the buffer tank 7. The bottom of the buffer tank 7 is connected to the second connecting pipe 11. The other end of the second connecting pipe 11 is connected to the inlet pipe 6. The second connecting pipe 11 is fixedly installed with the circulating water pump 13. The second connecting pipe 11 is installed with the third solenoid valve 14 on the side near the water supply pipe 4. The circulating water pump 13 provides power for the circulating water flow. The third solenoid valve 14 controls the opening and closing of the second connecting pipe 11. The first solenoid valve 5 can be switched to connect the ring pipe 302 and the first connecting pipe 10. By closing solenoid valve 12 and opening solenoid valve 14, solenoid valve 5 connects the annular pipe 302 and connecting pipe 10, and the circulating water pump 13 is started. Wastewater flows in the circulating water circuit consisting of annular pipe 302, connecting pipe 10, buffer tank 7, and connecting pipe 11. When the water flows through annular pipe 302, it absorbs the heat conducted by the evaporator boiler 1 through the arc-shaped heat-conducting block 303 and the heat-conducting silicone 15. Then, it enters the buffer tank 7 through connecting pipe 10 and flows back to annular pipe 302 through connecting pipe 11. After multiple cycles, the temperature of the wastewater in buffer tank 7 continues to rise. When there is a shortage of water inside the evaporator boiler 1, solenoid valve 5 connects the inlet pipe 6 and annular pipe 302, allowing the preheated wastewater in buffer tank 7 to flow into the boiler through annular pipe 302 and inlet pipe 6. This process increases the temperature of the wastewater through circulating heating, further utilizing the waste heat and making up for the shortcomings of the traditional independent insulation and water replenishment systems. The working principle of the above embodiment is as follows: the heat of the outer wall of the evaporator boiler 1 is conducted to the corrosion-resistant annular pipe 302 wrapped around it through the metal arc-shaped heat-conducting block 303 filled with thermally conductive silicone 15. The ambient temperature wastewater flowing inside the pipe absorbs the heat and reduces the temperature of the outer wall of the evaporator boiler 1. At the same time, the heat insulation cotton 301 covers the annular pipe 302 and the arc-shaped heat-conducting block 303, delaying the heat conduction to the outside. The temperature sensor 9 monitors the temperature of the wastewater inside the pipe. Through the combination of active heat absorption by the wastewater and passive heat insulation by the heat insulation cotton, a good heat insulation effect is achieved. When water is directly added, the heat from the evaporator boiler 1 is conducted to the annular pipe 302 through the arc-shaped heat-conducting block 303 and the heat-conducting silicone 15. The wastewater in the pipe absorbs the heat, the insulation cotton 301 prevents the heat from being transferred outward, the temperature sensor 9 monitors the water temperature in real time, the water pump 8 provides power, opens the second solenoid valve 12 and closes the third solenoid valve 14, and the first solenoid valve 5 connects the annular pipe 302 and the inlet pipe 6. The wastewater to be added enters the annular pipe 302 through the water pump 4 and absorbs heat, and then flows into the evaporator boiler 1 through the inlet pipe 6. This achieves heat insulation and preheating of the wastewater at the same time, reduces energy consumption and improves efficiency. During circulating heating, the second solenoid valve 12 is closed and the third solenoid valve 14 is opened. The first solenoid valve 5 is controlled to connect the annular pipe 302 and the first connecting pipe 10. The circulating water pump 13 is started. Wastewater flows in the circulating water circuit composed of the annular pipe 302, the first connecting pipe 10, the buffer tank 7, and the second connecting pipe 11. The heat from the evaporator boiler 1 is conducted to the annular pipe 302 through the arc-shaped heat-conducting block 303 and the heat-conducting silicone 15. The wastewater in the pipe absorbs heat, and the water temperature gradually rises during the circulation process. The temperature sensor 9 monitors the water temperature. When there is a shortage of water inside the evaporator boiler 1, the first solenoid valve 5 is controlled to connect the inlet pipe 6 and the annular pipe 302. The preheated wastewater in the buffer tank 7 flows into the boiler through the annular pipe 302 and the inlet pipe 6, and the waste heat is further utilized through circulating heating.

[0019] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0020] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".

[0021] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat insulation structure for an MVR evaporator for high-salt wastewater treatment, characterized in that: The device includes an evaporator boiler (1) and a central insulation component (3). The top of the evaporator boiler (1) is fixedly connected to a steam pipe (2). The central insulation component (3) includes insulation cotton (301), an annular pipe (302), and an arc-shaped heat-conducting block (303). The insulation cotton (301) covers the annular pipe (302) and the arc-shaped heat-conducting block (303). The two ends of the annular pipe (302) are fixedly connected to a water supply pipe (4) and a first solenoid valve (5). The first solenoid valve (5) is connected to a water inlet pipe (6). The water inlet pipe (6) is inserted into the evaporator boiler (1). The end of the water supply pipe (4) away from the evaporator boiler (1) is fixedly connected to a water supply pump (8).

2. The heat insulation structure of an MVR evaporator for high-salt wastewater treatment according to claim 1, characterized in that: The annular pipe (302) is wound around the outside of the evaporator boiler (1), one side of the arc-shaped heat-conducting block (303) is fixedly connected to the outer wall of the evaporator boiler (1), and the other side of the arc-shaped heat-conducting block (303) is fixedly connected to the outer wall of the annular pipe (302).

3. The heat insulation structure of an MVR evaporator for high-salt wastewater treatment according to claim 1, characterized in that: The annular pipe (302) is a corrosion-resistant pipe, and a temperature sensor (9) is fixedly installed at one end of the annular pipe (302) near the first solenoid valve (5).

4. The heat insulation structure of an MVR evaporator for high-salinity wastewater treatment according to claim 1, characterized in that: The first solenoid valve (5) is a three-way valve. The other two ports of the first solenoid valve (5) are respectively connected to the water inlet pipe (6) and the first connecting pipe (10). The other end of the first connecting pipe (10) is connected to the buffer tank (7).

5. The heat insulation structure of an MVR evaporator for high-salinity wastewater treatment according to claim 4, characterized in that: The bottom of the buffer tank (7) is connected to a second connecting pipe (11), and the other end of the second connecting pipe (11) is connected to the water inlet pipe (6).

6. The heat insulation structure of an MVR evaporator for high-salinity wastewater treatment according to claim 1, characterized in that: The water supply pipe (4) is connected to a second solenoid valve (12) at one end near the water supply pump (8).

7. The heat insulation structure of an MVR evaporator for high-salinity wastewater treatment according to claim 1, characterized in that: There are multiple arc-shaped heat-conducting blocks (303). The side of the arc-shaped heat-conducting block (303) close to the annular pipe (302) is attached to the surface of the annular pipe (302). The arc-shaped heat-conducting block (303) is inclined along the winding direction of the annular pipe (302). The arc-shaped heat-conducting block (303) and the outer wall of the evaporator boiler (1) are filled with thermally conductive silicone (15).

8. The heat insulation structure of an MVR evaporator for high-salinity wastewater treatment according to claim 5, characterized in that: A circulating water pump (13) is fixedly installed on the second connecting pipe (11), and a third solenoid valve (14) is installed on the side of the second connecting pipe (11) near the water supply pipe (4).

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