Salt-making high-temperature return water waste heat recovery equipment

Abstract

The utility model discloses salt-making high-temperature return water waste heat recovery equipment, and relates to the technical field of mechanical engineering. The salt-making high-temperature return water waste heat recovery equipment comprises a heat exchange cylinder, a single-thread pump, a power motor and a sealing end cover, three limiting assemblies are arranged on the heat exchange cylinder, each limiting assembly comprises a mounting base and a limiting frame, the mounting bases are fixedly mounted on the outer wall of the upper end of the heat exchange cylinder, and the outer wall of the lower end of the sealing end cover is slidably connected with the interior of the upper end of the heat exchange cylinder; a push block is pushed in a limiting assembly, the push block drives a limiting block to retreat from a second limiting block groove, then a turnover limiting frame is separated from contact from the interior of a limiting frame groove, the push block and the limiting block are reset under the action of a reset spring, at the moment, the sealing end cover can be taken out of the heat exchange cylinder, operation is convenient, the sealing end cover is easy and fast to disassemble, and the working efficiency is improved. The workload of workers is effectively reduced, and meanwhile the sealing end cover or other parts are prevented from being damaged by collision in the dismounting process.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a waste heat recovery device for high-temperature salt production water return. Background Technology

[0002] In the salt-making industry, processes such as evaporation and drying generate a large amount of high-temperature return water. Chinese utility model patent, authorized publication "CN216668367U", discloses a waste heat recovery device for the salt-making industry, including a heat exchange mechanism. The top of the heat exchange mechanism is threadedly connected to a sealing end cap, and a support foot is fixedly connected to the bottom edge of the heat exchange mechanism. A single-threaded pump is positioned in the middle of the top surface of the sealing end cap, with one end of the pump connected to a power motor via a coupling. A pressure regulating mechanism is also included, installed in the middle of the bottom surface of the heat exchange mechanism to regulate the pressure inside the heat exchange mechanism. This utility model is applicable to the salt-making field. The power motor transmits power to the single-threaded pump, which draws in the hot air generated during the salt-making process and delivers it to the heat exchange cylinder, increasing the air pressure inside the heat exchange cylinder and further increasing the temperature inside the cylinder. This results in a higher temperature for the heat exchange pipes, improving heat transfer efficiency and waste heat recovery efficiency.

[0003] The above technical solution, through the combined design of a heat exchange mechanism, a single-thread pump, and a pressure regulating mechanism, achieves waste heat recovery in the salt production process to a certain extent. A sealing end cap is installed at the top of the heat exchange mechanism to seal the internal space and ensure the airtightness of the heat exchange process. However, the above technical solution still has certain drawbacks. For example, while the equipment uses a sealing end cap at the top of the heat exchange mechanism to seal the internal space and ensure the airtightness of the heat exchange process, the sealing end cap uses a traditional installation method. During equipment maintenance and cleaning, it requires cumbersome disassembly operations using various tools, consuming a lot of time and labor costs. Furthermore, disassembling the sealing end cap often requires the cooperation of multiple workers, and the sealing end cap or other components may be damaged due to bumps and knocks during the disassembly process. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a waste heat recovery device for high-temperature return water in salt production. This device can solve the problem of setting a sealing end cover at the top of the heat exchange mechanism to seal the internal space of the heat exchange mechanism and ensure the sealing of the heat exchange process. However, the sealing end cover adopts a traditional installation method, which requires a variety of tools for cumbersome disassembly operations during equipment maintenance and cleaning, which consumes a lot of time and labor costs. At the same time, disassembling the sealing end cover often requires the cooperation of multiple workers, and there is a problem that the sealing end cover or other components may be damaged due to bumps and knocks during the disassembly process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature waste heat recovery device for salt production, comprising a heat exchange cylinder, a single-threaded pump, a power motor, and a sealed end cap, wherein the heat exchange cylinder is provided with three limiting combinations;

[0006] The limiting assembly includes a mounting base and a limiting frame. The mounting base is fixedly installed on the outer wall of the upper end of the heat exchange cylinder. The outer wall of the lower end of the sealing end cover is slidably connected to the inner part of the upper end of the heat exchange cylinder. The limiting frame is installed on the mounting base by cooperating with the lower end grooves of the two support seats on the mounting base through the lower end fixing rod. The outer wall of the two support seats on the mounting base is provided with grooves. The outer wall of the limiting frame is fixedly connected with a fixing rod. The upper surface of the sealing end cover is provided with three limiting frame grooves.

[0007] The three limiting frame slots each have a second limiting block slot inside. The upper outer wall of the limiting frame has a push block slot, and a push block is slidably connected inside the push block slot. A rubber limiting block is installed inside the push block slot. The upper outer wall of the limiting frame near the sealing end cover has a first limiting block slot, and a limiting block is slidably connected inside the first limiting block slot. A reset spring is installed inside the push block slot. A sealing ring is installed on the lower outer wall of the sealing end cover. There are three limiting components in total, and all three limiting components are installed at the upper end of the heat exchange cylinder.

[0008] Preferably, the limiting frame is L-shaped, with the outer wall of the fixing rod slidably connected to the inside of the two grooves, and the upper outer wall of the limiting frame slidably connected to the inside of the corresponding limiting frame groove;

[0009] The two ends of the rubber limiting block are in contact with the outer wall of the corresponding push block and the inner wall of the push block groove, respectively.

[0010] Preferably, the interior of the push block groove communicates with the interior of the first limiting block groove;

[0011] The pusher block extends slidably into the groove of the first limiting block and is fixedly connected to the outer wall of the limiting block at one end.

[0012] Preferably, the two ends of the return spring are fixedly connected to the outer wall of the corresponding push block and the inner wall of the push block groove, respectively;

[0013] The end of the limiting block near the second limiting block groove slides into the inside of the limiting frame groove and slides in connection with the inside of the corresponding second limiting block groove. The outer wall of the sealing ring contacts the inner wall of the upper end of the heat exchange cylinder.

[0014] Preferably, a heat exchange pipe is installed inside the heat exchange cylinder, and both ends of the heat exchange pipe extend to the outside of the heat exchange cylinder.

[0015] The lower end of the single-thread pump is connected to the upper end of the sealing end cover via a flange, and the power motor is fixedly installed on the outer wall of one end of the single-thread pump.

[0016] Preferably, the single-threaded pump is electrically connected to the power motor, both ends of the heat exchange pipe are provided with connecting flanges, and a safety valve is installed on the upper end of the sealing end cover;

[0017] The upper end of the heat exchange pipe is the inlet end, and the lower end is the outlet end.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This high-temperature waste heat recovery equipment for salt production uses a pusher block in the limiting assembly to push the limiting block out of the second limiting block slot. Then, the limiting frame is flipped to disengage from the inside of the limiting frame slot. Under the action of the return spring, the pusher block and the limiting block are reset. At this time, the sealing end cover can be removed from the heat exchange cylinder for easy operation. This method of disassembling the sealing end cover is simple and quick, effectively reducing the workload of the staff and avoiding damage to the sealing end cover or other parts during the disassembly process. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the limiting frame of this utility model;

[0023] Figure 3 This is a schematic diagram of the external structure of the heat exchange pipe of this utility model;

[0024] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0025] Reference numerals in the attached drawings: 1. Heat exchange cylinder; 2. Single-threaded pump; 3. Power motor; 4. Mounting base; 5. Safety valve; 6. Rubber limit block; 7. Push block groove; 8. Push block; 9. Limiting frame; 10. Fixing rod; 11. Heat exchange pipe; 12. Groove; 13. Limiting frame groove; 14. Sealing ring; 15. Sealing end cap; 16. Return spring; 17. First limit block groove; 18. Limiting block; 19. Second limit block groove. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a waste heat recovery device for high-temperature return water in salt production, including a heat exchange cylinder 1, a single-thread pump 2, a power motor 3, and a sealing end cap 15;

[0031] The heat exchange cylinder 1 is equipped with three limit combinations;

[0032] The limiting assembly includes a mounting base 4 and a limiting frame 9. The mounting base 4 is fixedly installed on the upper outer wall of the heat exchange cylinder 1. The limiting frame 9 is L-shaped. The lower outer wall of the sealing end cap 15 is slidably connected to the upper interior of the heat exchange cylinder 1. The limiting frame 9 is installed on the mounting base 4 via a lower fixing rod that engages with the lower end grooves of two support seats on the mounting base 4. The outer walls of the two support seats on the mounting base 4 are each provided with a groove 12. A fixing rod 10 is fixedly connected to the upper outer wall of the limiting frame 9. The outer wall of the fixing rod 10 is slidably connected to the interior of the two grooves 12. The upper surface of the sealing end cap 15 is provided with three limiting frame grooves 13. Each of the three limiting frame grooves 13 is provided with a second limiting block groove 19. The upper outer wall of the limiting frame 9 is provided with a push block groove 7. A push block 8 is slidably connected to the interior of the push block groove 7. The upper outer wall of the limiting frame 9 is slidably connected to the interior of the corresponding limiting frame groove 13. A rubber limiting block 6 is provided inside the push block groove 7. The two ends of the rubber limiting block 6 are respectively connected to the corresponding push blocks. The outer wall of the limiter 8 contacts the inner wall of the pusher groove 7. The upper end of the limiter 9 near the sealing end cover 15 has a first limiter groove 17. The first limiter groove 17 is slidably connected to the inside of the limiter 18. The inside of the pusher groove 7 is connected to the inside of the first limiter groove 17. The end of the pusher 8 near the limiter 18 slides into the inside of the first limiter groove 17 and is fixedly connected to the outer wall of the limiter 18. The pusher groove 7 is provided with a return spring 16. The two ends of the return spring 16 are fixedly connected to the outer wall of the corresponding pusher 8 and the inner wall of the pusher groove 7, respectively. The end of the limiter 18 near the second limiter groove 19 slides into the inside of the limiter groove 13 and is slidably connected to the inside of the corresponding second limiter groove 19. The lower outer wall of the sealing end cover 15 is equipped with a sealing ring 14. The outer wall of the sealing ring 14 contacts the upper inner wall of the heat exchange cylinder 1. There are three limiter components in total. All three limiter components are set at the upper end of the heat exchange cylinder 1.

[0033] The heat exchange cylinder 1 is equipped with a heat exchange pipe 11 inside. Both ends of the heat exchange pipe 11 are fixedly extended to the outside of the heat exchange cylinder 1. The lower end of the single thread pump 2 is connected to the upper end of the sealing end cover 15 via a flange. The power motor 3 is fixedly installed on the outer wall of one end of the single thread pump 2. The single thread pump 2 is electrically connected to the power motor 3. Both ends of the heat exchange pipe 11 are equipped with connecting flanges. The upper end of the sealing end cover 15 is equipped with a safety valve 5. The upper end of the heat exchange pipe 11 is the water inlet end and the lower end is the water outlet end.

[0034] Furthermore, when using this device, specifically the waste heat recovery equipment for high-temperature wastewater from salt production, first align the lower outer wall of the sealing end cap 15 with the upper interior of the heat exchange cylinder 1, allowing them to slide together. At this time, the upper outer wall of the limiting frame 9 contacts the interior of the limiting frame groove 13 on the sealing end cap 15. Flip the limiting frame 9 so that the lower fixing rod of the limiting frame 9 engages with the lower grooves of the two support seats on the mounting base 4. Simultaneously, the fixing rod 10 slides within the groove 12 of the mounting base 4. After adjusting the position of the limiting frame 9, push the push block 8. As the push block 8 slides within the push block groove 7, it pushes the limiting block 18 to slide within the first limiting block groove 17, extending it to the second limiting block groove 19 of the sealing end cap 15, thus achieving a fixed connection between the sealing end cap 15 and the heat exchange cylinder 1. The sealing ring 14 ensures the sealing at the connection point. Then, connect the external equipment to the inlet and outlet ends via the connecting flanges at both ends of the heat exchange pipe 11. Start the power motor 3, which drives the single-thread pump 2 to operate. The single-thread pump 2 can draw in the hot air generated during the salt production process and deliver it to the heat exchange cylinder 1, increasing the air pressure in the heat exchange cylinder 1 and further increasing the temperature inside the heat exchange cylinder 1. This allows the heat exchange pipe 11 to be at a higher temperature. The inlet end is connected to cold water and the outlet end is discharged with hot water. The hot water comes into contact with the brine pipe to preheat the brine. At the same time, during equipment operation, the safety valve 5 monitors the internal pressure of the equipment in real time. When the internal pressure exceeds the set value, the safety valve 5 automatically opens to release pressure and ensure equipment safety. If it is necessary to remove the sealing end cover 15 for equipment maintenance or repair, pull the handle on the rubber limit block 6 to remove it from the inside of the push block groove 7. Then push the push block 8, which drives the limit block 18 to exit from the second limit block groove 19. Then flip the limit frame 9 to disengage from the inside of the limit frame groove 13. Then, under the action of the return spring 16, the push block 8 and the limit block 18 are reset. At this time, the sealing end cover 15 can be removed from the heat exchange cylinder 1 for easy operation.

[0035] Pushing the pusher 8 through the limiting assembly causes the limiting block 18 to exit from the second limiting block groove 19. Then, the limiting frame 9 is flipped and disengaged from the inside of the limiting frame groove 13. Under the action of the return spring 16, the pusher 8 and the limiting block 18 are reset. At this time, the sealing end cover 15 can be removed from the heat exchange cylinder 1 for easy operation. This makes disassembling the sealing end cover 15 simple and quick, effectively reducing the workload of the staff and avoiding damage to the sealing end cover 15 or other parts during the disassembly process.

[0036] Structural Description: Heat Exchanger 1: As the core of the entire equipment, it is the main place where waste heat recovery occurs. The heat exchange pipes 11 installed inside provide a key channel for heat exchange between high-temperature return water and the medium to be heated. The upper outer wall of the heat exchanger 1 undertakes the important task of installing the limiting components and the sealing end cap 15. The lower end and sides are like a solid fortress, providing stable support and comprehensive protection for the internal heat exchange pipes 11. The three limiting combinations set there are like precise locks, ensuring the stability and sealing of the connection between the sealing end cap 15 and itself, effectively avoiding heat loss and medium leakage during operation.

[0037] Mounting base 4: Firmly fixed to the upper outer wall of heat exchange cylinder 1, like a solid foundation, providing a solid basis for the installation of limit frame 9. The two carefully designed support seats on it have grooves at the lower end of the support seats that can accurately cooperate with the fixing rod at the lower end of the limit frame 9 to complete the initial installation of the limit frame 9. At the same time, the grooves 12 opened on the outer wall of the two support seats work closely with the fixing rod 10 on the limit frame 9 to further restrict the horizontal movement of the limit frame 9 and ensure its installation stability.

[0038] Limiting bracket 9: It has a unique "L" shaped structure. The lower fixing rod cleverly cooperates with the lower end grooves of the two support seats on the mounting base 4, and is stably installed on the mounting base 4. The upper outer wall is slidably connected to the inside of the limiting bracket groove 13 on the sealing end cover 15. The fixing rod 10 fixedly connected to the upper outer wall of the limiting bracket 9 can slide freely in the groove 12 of the mounting base 4, so as to conveniently and flexibly adjust the installation position of the limiting bracket 9. The push block groove 7 opened on its upper outer wall slides a push block 8, and a rubber limiting block 6 is set inside the push block groove 7. Like a gentle cushion, it plays a role in buffering and initial limiting. The push block groove 7 is also equipped with a return spring 16, which works in tacit cooperation with the push block 8. When the push block 8 pushes the limiting block 18 to move, it can quickly reset it. The first limiting block groove 17 is opened on the outer wall of the upper end of the limiting frame 9 near the sealing end cover 15. The limiting block 18 is slidably connected inside. The push block 8 drives the limiting block 18 to slide in the first limiting block groove 17 and the second limiting block groove 19 of the sealing end cover 15, so as to achieve precise limiting and firm fixation of the sealing end cover 15.

[0039] Push block 8, rubber limit block 6, reset spring 16, limit block 18: Push block 8 slides freely in push block groove 7, one end is tightly fixed to limit block 18, and the other end is lightly in contact with rubber limit block 6. Only a gentle push of push block 8 can move limit block 18. Rubber limit block 6 acts like a loyal guardian, playing the role of buffering and initial positioning of push block 8 to prevent it from sliding excessively. The two ends of reset spring 16 are firmly fixed to the outer wall of push block 8 and the inner wall of push block groove 7, respectively. When the external force is removed, it acts like a powerful arm, quickly pushing push block 8 and limit block 18 to reset. Under the action of push block 8, limit block 18 can slide smoothly in the first limit block groove 17 and the second limit block groove 19, realizing efficient locking and convenient unlocking of sealing end cover 15, effectively ensuring the tightness of the connection between sealing end cover 15 and heat exchange cylinder 1.

[0040] Sealing end cap 15: The lower outer wall is precisely slidably connected to the upper interior of the heat exchange cylinder 1. With the help of the sealing ring 14, it is tightly fitted to the upper inner wall of the heat exchange cylinder 1, forming an indestructible sealing barrier, effectively preventing internal medium leakage and external air intrusion. Its upper end bears the important responsibility of installing the single thread pump 2 and the safety valve 5. The three limit bracket grooves 13 on the upper surface and the second limit block groove 19 inside are perfectly matched with the limit bracket 9, realizing a stable and fixed connection between the sealing end cap 15 and the heat exchange cylinder 1. At the same time, the connecting pipe on the sealing end cap is like a smooth bridge, tightly connected to the lower end of the single thread pump 2 through the flange, ensuring smooth and unobstructed flow of the internal medium of the equipment.

[0041] Safety valve 5 and sealing ring 14: Safety valve 5 is installed on the upper end of sealing end cover 15. Like a sensitive pressure guardian, it monitors the internal pressure of the equipment in real time. When the internal pressure of the equipment exceeds the set value, it opens quickly and automatically to release the excess pressure, effectively preventing the equipment from being damaged due to excessive pressure and safeguarding the safety of equipment operation. Sealing ring 14 is installed on the lower outer wall of sealing end cover 15. Its outer wall is in close contact with the upper inner wall of heat exchange cylinder 1, forming a reliable sealing structure. It effectively prevents leakage of internal media and the entry of outside air, providing a solid guarantee for the efficient operation of the waste heat recovery process.

[0042] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A waste heat recovery device for high-temperature salt production water, comprising a heat exchange cylinder (1), a single-thread pump (2), a power motor (3), and a sealed end cap (15), characterized in that: The heat exchange cylinder (1) is provided with three limit combinations; The limiting assembly includes a mounting base (4) and a limiting frame (9). The mounting base (4) is fixedly installed on the upper outer wall of the heat exchange cylinder (1). The lower outer wall of the sealing end cap (15) is slidably connected to the upper interior of the heat exchange cylinder (1). The limiting frame (9) is installed on the mounting base (4) through a lower fixing rod and the two lower grooves of the support seats on the mounting base (4). The outer walls of the two support seats on the mounting base (4) are provided with grooves (12). The upper outer wall of the limiting frame (9) is fixedly connected with a fixing rod (10). The upper surface of the sealing end cap (15) is provided with three limiting frame grooves (13). Among them, the three limiting frame slots (13) are all provided with second limiting block slots (19), the upper outer wall of the limiting frame (9) is provided with push block slots (7), the push block slots (7) are slidably connected with push blocks (8), the push block slots (7) are provided with rubber limiting blocks (6), the upper end of the limiting frame (9) near the sealing end cover (15) is provided with a first limiting block slot (17), the first limiting block slots (17) are slidably connected with limiting blocks (18), the push block slots (7) are provided with a reset spring (16), the lower outer wall of the sealing end cover (15) is installed with a sealing ring (14), there are three limiting components in total, and all three limiting components are provided at the upper end of the heat exchange cylinder (1).

2. The waste heat recovery equipment for high-temperature salt production water as described in claim 1, characterized in that: The limiting frame (9) is L-shaped, the outer wall of the fixing rod (10) is slidably connected to the inside of the two grooves (12), and the upper outer wall of the limiting frame (9) is slidably connected to the inside of the corresponding limiting frame groove (13). The two ends of the rubber limiting block (6) are in contact with the outer wall of the corresponding push block (8) and the inner wall of the push block groove (7), respectively.

3. The waste heat recovery equipment for high-temperature salt production water as described in claim 1, characterized in that: The interior of the pusher groove (7) is connected to the interior of the first limiting block groove (17); Among them, the push block (8) extends slidably into the interior of the first limiting block groove (17) and is fixedly connected to the outer wall of the limiting block (18) at one end near the limiting block (18).

4. The waste heat recovery equipment for high-temperature salt production water as described in claim 1, characterized in that: The two ends of the return spring (16) are fixedly connected to the outer wall of the corresponding push block (8) and the inner wall of the push block groove (7), respectively; Among them, the end of the limiting block (18) near the second limiting block groove (19) slides into the interior of the limiting frame groove (13) and slides in connection with the interior of the corresponding second limiting block groove (19), and the outer wall of the sealing ring (14) contacts the inner wall of the upper end of the heat exchange cylinder (1).

5. The waste heat recovery equipment for high-temperature salt production water according to claim 1, characterized in that: The heat exchange cylinder (1) is equipped with a heat exchange pipe (11), and both ends of the heat exchange pipe (11) are fixedly extended to the outside of the heat exchange cylinder (1). The lower end of the single-thread pump (2) is connected to the upper end of the sealing end cover (15) via a flange, and the power motor (3) is fixedly installed on the outer wall of one end of the single-thread pump (2).

6. The waste heat recovery equipment for high-temperature salt production water as described in claim 1, characterized in that: The single-thread pump (2) is electrically connected to the power motor (3), and both ends of the heat exchange pipe (11) are equipped with connecting flanges. A safety valve (5) is installed on the upper end of the sealing end cover (15). Among them, the upper end of the heat exchange pipe (11) is the inlet end and the lower end is the outlet end.

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