Closed cycle low temperature heat pump four-effect evaporation device

Abstract

The utility model discloses a closed cycle low temperature heat pump four effect evaporation equipment, include: evaporator body, the surface fixedly connected with installation frame of evaporator body, pipeline cleaning subassembly, the bottom end of pipeline cleaning subassembly with the bottom end intercommunication of evaporator body, pipeline cleaning subassembly is used for carrying out the cleaning to the liquid pipeline of closed cycle low temperature heat pump four effect evaporation equipment main body, the utility model relates to evaporation equipment technical field. The closed cycle low temperature heat pump four effect evaporation equipment, utilize the setting of pipeline cleaning subassembly, set up the curved cleaning main pipe through one end of liquid discharge pipe, adopt clean water pump to communicate with it simultaneously, can guarantee the directional flow of the fouling sewage in evaporator body, and the scale is finally limited at the bottom of filter membrane, after closing clean water pump, the dirt of filter membrane bottom can slide into the discharge pipe according to its own gravity, is convenient finally is discharged.

Description

Technical Field

[0001] This utility model relates to the field of evaporation equipment technology, specifically a closed-loop low-temperature heat pump four-effect evaporation equipment. Background Technology

[0002] The closed-loop low-temperature heat pump quadruple-effect evaporation equipment is an extremely energy-efficient industrial concentration and crystallization device. It reduces the energy required for the evaporation process to a fraction of that required by traditional equipment, making it particularly suitable for processing heat-sensitive, high-boiling-point-elevation, or easily foaming materials. Its core function is to heat and vaporize the water in the solution to separate it, thereby concentrating the solution or causing the solute to crystallize and precipitate.

[0003] Patent CN207429709U discloses a closed-loop heat pump low-temperature evaporation crystallization treatment device. Its closed-loop heat pump condenser is connected to a condensing plate heat exchanger via a chilled water circulation pump, forming a saturated water vapor condensation loop. An electronic expansion valve is connected to both the closed-loop heat pump condenser and the closed-loop heat pump evaporator. The closed-loop heat pump evaporator is connected to a heating plate heat exchanger via a forced circulation pump, forming a circulating air heat transfer system. A condensate storage tank is connected to the condensing plate heat exchanger, and condensate is discharged via a condensate pump, forming a condensate discharge system. The condensing plate heat exchanger and the heating plate heat exchanger form another closed-loop circulation loop for water evaporation and condensation through an evaporation crystallization separation chamber and a circulating fan. The evaporation crystallization separation chamber is connected to a hydrocyclone via a hydrocyclone feed pump. The hydrocyclone is connected to a crystallization tank, and the crystallization tank is connected to a centrifuge. The centrifuge, via a crystal slurry tank and a crystal slurry pump, is connected to a dryer on one side and to the evaporation crystallization separation chamber on the other. This device has the advantages of reduced manufacturing costs and low overall energy consumption.

[0004] As shown in the above technology, after a period of regular use, a large amount of scale and dirt will be generated inside the closed-loop low-temperature heat pump four-effect evaporation equipment, which needs to be cleaned. However, ordinary evaporation equipment uses scraping and rinsing, and the scrapers are generally arranged in an alternating pattern. The inner wall of the evaporator cannot be completely cleaned by the scrapers. In addition, after a large amount of scale and dirt is removed, it is very easy to clog the pipes and it is not easy to maintain. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a closed-loop low-temperature heat pump four-effect evaporation device, which solves the problems of ordinary evaporation equipment using scraping and rinsing, where scrapers are generally staggered and the inner wall of the evaporator cannot be completely cleaned by the scrapers. In addition, after a large amount of scale and dirt is removed, the pipes are easily blocked and the equipment is difficult to maintain.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a closed-loop low-temperature heat pump four-effect evaporation device, comprising:

[0007] An evaporator body, the surface of which is fixedly connected to a mounting frame;

[0008] A pipeline cleaning assembly, the bottom end of which is connected to the bottom end of the evaporator body, is used to clean the liquid pipeline of the main body of the closed-loop low-temperature heat pump four-effect evaporation equipment.

[0009] A container cleaning assembly is fixedly connected to the top of the evaporator body on one side. The container cleaning assembly is used to clean the inner wall of a closed-loop low-temperature heat pump four-effect evaporation equipment.

[0010] Preferably, the pipeline cleaning assembly includes a drain pipe connected to the bottom of the evaporator body, one end of the drain pipe is connected to a cleaning main pipe, the inner wall of the cleaning main pipe is provided with a filter membrane, and the bottom of one side of the surface of the cleaning main pipe is connected to a discharge pipe.

[0011] Preferably, one end of the main cleaning pipe is connected to a T-shaped pipe, the top end of the T-shaped pipe is connected to a cleaning water pump, and one end of the T-shaped pipe is connected to a clean water pipe.

[0012] Preferably, the container cleaning assembly includes a cleaning motor fixedly connected to the top of the evaporator body, one end of the output shaft of the cleaning motor is fixedly connected to a rotating telescopic shaft, and one end of the rotating telescopic shaft passes through the evaporator body and extends to the inner wall of the evaporator body.

[0013] Preferably, the bottom end of the rotary telescopic shaft is fixedly connected to a main shaft, and a scraper is fixedly connected to the surface of the main shaft.

[0014] Preferably, a spline shaft is fixedly connected to the bottom end of the main shaft, a spline bearing is movably connected to the surface of the spline shaft, and a positioning frame is movably and fixedly connected to one side of the spline bearing.

[0015] This invention provides a closed-loop low-temperature heat pump four-effect evaporation device. Compared with the prior art, it has the following advantages:

[0016] 1. This closed-loop low-temperature heat pump four-effect evaporator utilizes a pipeline cleaning component. A curved cleaning main pipe is installed at one end of the drain pipe, connected to a cleaning water pump. This ensures the directional flow of scale-laden wastewater within the evaporator body, with the scale ultimately confined to the bottom of the filter membrane. After the cleaning water pump is turned off, the scale at the bottom of the filter membrane slides down into the discharge pipe under its own gravity for easy removal. A clean water pipe facilitates the introduction of clean water for backwashing the filter membrane, enabling rapid self-cleaning and improving equipment maintenance efficiency. This solves the problem of easy pipe blockage and difficulty in maintenance after large amounts of scale and dirt are removed.

[0017] 2. This closed-loop low-temperature heat pump four-effect evaporation equipment utilizes the container cleaning component and the rotating telescopic shaft to allow the scraper to thoroughly scrape the inner wall of the evaporator body. As the scraper moves up and down, the dead corners between the two scraper layers are also cleaned. At the same time, the spline shaft moves up and down in the spline bearing, resulting in strong overall stability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the pipeline cleaning component of this utility model;

[0020] Figure 3 This is a schematic diagram of the container cleaning component of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0022] Figure 5 This is a cross-sectional view of the present invention.

[0023] In the diagram: 1. Evaporator body; 2. Pipeline cleaning assembly; 21. Drain pipe; 22. Main cleaning pipe; 23. Filter membrane; 24. T-joint; 25. Cleaning water pump; 26. Clean water pipe; 27. Discharge pipe; 3. Container cleaning assembly; 31. Cleaning motor; 32. Rotary telescopic shaft; 33. Main shaft; 34. Scraper; 35. Splined shaft; 36. Splined bearing; 37. Positioning bracket; 4. Mounting frame. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-5 This utility model provides two technical solutions:

[0026] Example 1: A closed-loop low-temperature heat pump four-effect evaporation device, comprising:

[0027] Evaporator body 1, with mounting frame 4 fixedly connected to the surface of evaporator body 1;

[0028] Pipeline cleaning component 2, the bottom end of pipeline cleaning component 2 is connected to the bottom end of evaporator body 1, and pipeline cleaning component 2 is used to clean the liquid pipeline of the main body of the closed-loop low temperature heat pump four-effect evaporation equipment.

[0029] The container cleaning component 3 is fixedly connected to the top of the evaporator body 1 on one side. The container cleaning component 3 is used to clean the inner wall of the closed-loop low-temperature heat pump four-effect evaporator. With the setting of the pipeline cleaning component 2, a curved cleaning main pipe 22 is set through one end of the drain pipe 21, and a cleaning water pump 25 is connected to it. This ensures that the scale-containing wastewater in the evaporator body 1 flows in a directional manner, and the scale is ultimately restricted to the bottom of the filter membrane 23. After the cleaning water pump 25 is turned off, the dirt at the bottom of the filter membrane 23 can slide down into the discharge pipe 27 by its own gravity, which is convenient for final discharge. A clean water pipe 26 is set to facilitate the introduction of clean water to backwash the filter membrane 23, which can quickly perform self-cleaning, improve the maintenance efficiency of the equipment, and solve the problem that the pipe is easily blocked and difficult to maintain after a large amount of scale and dirt is removed.

[0030] Example 2 differs from Example 1 primarily in that: a closed-loop low-temperature heat pump four-effect evaporation device includes a pipe cleaning assembly 2 comprising a drain pipe 21 connected to the bottom of the evaporator body 1, with cleaning main pipe 22 installed at relevant locations inside the pipe, one end of the drain pipe 21 connected to a cleaning main pipe 22, the inner wall of the cleaning main pipe 22 being provided with a filter membrane 23, a discharge pipe 27 connected to the bottom of one side of the cleaning main pipe 22, a three-way pipe 24 connected to one end of the cleaning main pipe 22, a cleaning water pump 25 connected to the top of the three-way pipe 24, the drain outlet of the cleaning water pump 25 being connected to an external wastewater pipe, and a clean water pipe 26 connected to one end of the three-way pipe 24. The container cleaning assembly 3 includes a cleaning motor 31 fixedly connected to the top of the evaporator body 1, the cleaning motor 31 having its own reducer, and one end of the output shaft of the cleaning motor 31 being fixed... A rotating telescopic shaft 32 is fixedly connected. The rotating telescopic shaft 32 is electrically controlled. One end of the rotating telescopic shaft 32 passes through the evaporator body 1 and extends to the inner wall of the evaporator body 1. A main shaft 33 is fixedly connected to the bottom end of the rotating telescopic shaft 32. A scraper 34 is fixedly connected to the surface of the main shaft 33. A spline shaft 35 is fixedly connected to the bottom end of the main shaft 33. A spline bearing 36 is movably connected to the surface of the spline shaft 35. A positioning frame 37 is movably and fixedly connected to one side of the spline bearing 36. With the setting of the container cleaning component 3 and the setting of the rotating telescopic shaft 32, the scraper 34 can scrape the inner wall of the evaporator body 1. As the scraper 34 moves up and down, the dead corners between the two scrapers 34 will also be cleaned. At the same time, the spline shaft 35 will move up and down in the spline bearing 36, resulting in strong overall stability.

[0031] The length of the rotating telescopic shaft 32 is adapted to the width of the scraper 34, and a water inlet pipe is provided at the top of the evaporator body 1.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] During operation, the evaporator body 1 participates in the normal operation of the closed-loop low-temperature heat pump four-effect evaporation equipment. For maintenance of the evaporator body 1, open the top water inlet pipe of the evaporator body 1 and add sufficient cleaning liquid to the evaporator body 1. Close the bottom valve of the drain pipe 21, turn on the cleaning motor 31, and drive the scraper 34 to scrape and clean the inner wall of the evaporator body 1 by rotating the telescopic shaft 32. Extending and retracting the telescopic shaft 32 causes the scraper 34 to move up and down within the evaporator body 1, thoroughly scraping the inner wall of the evaporator body 1. Simultaneously, the spline shaft 35 slides up and down within the spline bearing 36. After scraping the inner wall of the evaporator body 1 is complete, open the drain pipe 21. Close the discharge pipe 27 and the clean water pipe 26, and turn on the cleaning water pump 25. The scale-containing wastewater flows through the drain pipe 21 and the main cleaning pipe 22. The scale is filtered by the filter membrane 23 and remains at the bottom of the filter membrane 23. The wastewater is discharged by the cleaning water pump 25 through the three-way pipe 24. When enough scale has accumulated at the bottom of the filter membrane 23, turn off the cleaning water pump 25 and turn on the discharge pipe 27. The scale is discharged directly through the discharge pipe 27. When cleaning the filter membrane 23, close the top of the three-way pipe 24, turn off the cleaning water pump 25, and turn on the clean water pipe 26. The clean water backwashes the filter membrane 23. The scale adhering to the surface of the filter membrane 23 is still discharged through the discharge pipe 27. When the device is finished, restore the equipment to its original state.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 closed-loop low-temperature heat pump four-effect evaporation device, characterized in that, include: Evaporator body (1), the surface of which is fixedly connected to an installation frame (4); Pipeline cleaning assembly (2), the bottom end of which is connected to the bottom end of the evaporator body (1), the pipeline cleaning assembly (2) is used to clean the liquid pipeline of the main body of the closed-loop low temperature heat pump four-effect evaporation equipment; A container cleaning assembly (3) is fixedly connected to the top of the evaporator body (1) on one side. The container cleaning assembly (3) is used to clean the inner wall of the closed-loop low-temperature heat pump four-effect evaporation equipment.

2. The closed-loop low-temperature heat pump four-effect evaporation equipment according to claim 1, characterized in that: The pipeline cleaning assembly (2) includes a drain pipe (21) connected to the bottom end of the evaporator body (1), one end of the drain pipe (21) is connected to a cleaning main pipe (22), the inner wall of the cleaning main pipe (22) is provided with a filter membrane (23), and the bottom of one side of the surface of the cleaning main pipe (22) is connected to a discharge pipe (27).

3. The closed-loop low-temperature heat pump four-effect evaporation equipment according to claim 2, characterized in that: One end of the cleaning main pipe (22) is connected to a three-way pipe (24), the top end of the three-way pipe (24) is connected to a cleaning water pump (25), and one end of the three-way pipe (24) is connected to a clean water pipe (26).

4. The closed-loop low-temperature heat pump four-effect evaporation equipment according to claim 1, characterized in that: The container cleaning assembly (3) includes a cleaning motor (31) fixedly connected to the top of the evaporator body (1). One end of the output shaft of the cleaning motor (31) is fixedly connected to a rotating telescopic shaft (32). One end of the rotating telescopic shaft (32) passes through the evaporator body (1) and extends to the inner wall of the evaporator body (1).

5. A closed-loop low-temperature heat pump four-effect evaporation device according to claim 4, characterized in that: The bottom end of the rotary telescopic shaft (32) is fixedly connected to the main shaft (33), and the surface of the main shaft (33) is fixedly connected to the scraper (34).

6. The closed-loop low-temperature heat pump four-effect evaporation equipment according to claim 5, characterized in that: A spline shaft (35) is fixedly connected to the bottom end of the main shaft (33), a spline bearing (36) is movably connected to the surface of the spline shaft (35), and a positioning frame (37) is movably and fixedly connected to one side of the spline bearing (36).

Images