Automatic cleaning type evaporative crystallization device
By designing an automatic cleaning evaporation crystallizer, and using a flow meter and submersible pump combined with a solenoid valve to control the water flow, the automatic cleaning of the evaporation crystallizer was achieved, solving the problem of pipeline blockage and improving cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ENCHUANG MASCH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
Existing evaporator crystallizers are prone to pipe blockage due to oil and mechanical impurities during use. Existing automatic cleaning multi-effect evaporator crystallizers require manual disassembly and replacement of horizontal tubes, which is complicated and lacks automated cleaning capabilities.
An automatic cleaning evaporation crystallization device was designed. The device uses a flow meter to detect the flow rate, and achieves automatic cleaning through a submersible pump and water pipes. The device uses a solenoid valve to control the water flow direction, and combines a filter cover and filter baffles to automatically remove blockages, thus achieving automatic cleaning.
It improves cleaning efficiency, simplifies the operation process, realizes automated cleaning of evaporator crystallizers, and reduces manual intervention.
Smart Images

Figure CN224113336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporation crystallizer technology, specifically an automatic cleaning type evaporation crystallizer device. Background Technology
[0002] An evaporator crystallizer achieves supersaturation of a solution by evaporating part of the solvent, making it very similar in principle and structure to an evaporator used for ordinary liquid concentration.
[0003] During daily use, oil and mechanical impurities may mix in the evaporator, resulting in high viscosity and blockage of the pipes. The first step should be hot ammonia defrosting. If defrosting fails, the ammonia in the evaporator should be completely removed, and then the pipes should be bleed with compressed air at 0.6 MPa (gauge pressure). If blew air does not resolve the issue, it indicates that there are obstructions inside the pipes, such as corks, sandpaper used for cleaning pipe fittings, or cotton yarn. In this case, the pipe should generally be cut off, the obstruction removed, and the pipe fittings re-welded.
[0004] A search revealed a Chinese patent publication number (CN211676387U) concerning an automatic cleaning multi-effect evaporator crystallizer. Although the pipe blockage problem can be solved by replacing the horizontal pipe, it requires manual disassembly and rotation by personnel, which does not achieve automated cleaning operation, making the operation process still relatively complicated. Utility Model Content
[0005] The purpose of this invention is to provide an automatic cleaning evaporation crystallization device with automatic cleaning features.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic cleaning type evaporation crystallization device, comprising a crystallizer body fixedly installed on the top of a base, a discharge pipe fixedly installed at the bottom right side of the crystallizer body, a filter pipe fixedly installed at the right end of the discharge pipe, a filter cover for intercepting blockages fixedly installed inside the filter pipe, a connecting pipe fixedly installed at the right end of the filter pipe, a flow meter fixedly installed outside the connecting pipe, a sewage pipe fixedly installed at the bottom of the filter pipe, a collection tank fixedly installed at the top of the base, a submersible pump fixedly installed inside the collection tank, a water pipe installed at the output end of the submersible pump, and the end of the water pipe away from the submersible pump fixedly connected to the top of the filter pipe.
[0007] To facilitate water recycling, in a preferred embodiment of the automatic cleaning evaporation crystallization device of this utility model, a filter baffle is fixedly installed on the inner side of the collection tank, a one-way valve is fixedly installed on the outer side of the water pipe, and the water pipe is located on the right side of the filter cover.
[0008] In order to separate the filter blockage, as a preferred embodiment of the automatic cleaning type evaporation crystallization device of this utility model, the drain pipe is located above the collection tank and to the left of the filter baffle, and the submersible pump is located to the right of the filter baffle.
[0009] In order to control the conveying and discharging of materials, as a preferred embodiment of the automatic cleaning evaporation and crystallization device of this utility model, a first solenoid valve is fixedly installed at the right end of the discharge pipe, and the discharge pipe is fixedly connected to the left end of the filter pipe through the first solenoid valve.
[0010] To further control the conveying and discharging of materials, in a preferred embodiment of the automatic cleaning evaporation and crystallization device of this utility model, a second solenoid valve is fixedly installed at the left end of the connecting pipe, and the connecting pipe is fixedly connected to the right end of the filter pipe through the second solenoid valve. The filter pipe is located between the first solenoid valve and the second solenoid valve.
[0011] In order to control sewage discharge, as a preferred embodiment of the automatic cleaning type evaporation crystallization device of this utility model, a third solenoid valve is fixedly installed at the top of the sewage discharge pipe, and the sewage discharge pipe is fixedly connected to the bottom of the filter pipe through the third solenoid valve.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] When the flow meter detects that the medium flow rate in the connecting pipe is less than the preset threshold, water from the inside of the collection tank is pumped into the filter pipe through a submersible pump and water pipe. The filter cover is then flushed through the outlet of the water pipe to remove blockages. The water is then discharged into the collection tank through the drain pipe at the bottom of the filter pipe. The filtration of the filter baffle allows the water to be circulated by the submersible pump to clean the blockages in the filter pipe. This solves the problem of cumbersome disassembly, installation, and welding in the existing technology and greatly improves cleaning efficiency. Attached Figure Description
[0014] Figure 1 This is a top-down perspective view of the present invention.
[0015] Figure 2 This is a top-view perspective view of the present invention.
[0016] Figure 3 This is a partial structural diagram of the present invention;
[0017] Figure 4 This is a partial cross-sectional view of the present invention.
[0018] In the diagram: 1. Base; 2. Crystallizer body; 3. Discharge pipe; 4. Filter pipe; 5. Connecting pipe; 6. Collection tank; 7. First solenoid valve; 8. Second solenoid valve; 9. Third solenoid valve; 10. Flow meter; 11. Sewage pipe; 12. Filter cover; 13. Filter baffle; 14. Submersible pump; 15. Water pipe; 16. Check valve. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation 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 be set in a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] Please see Figures 1 to 4 An automatic cleaning type evaporation crystallization device includes a crystallizer body 2 fixedly installed on the top of a base 1. A discharge pipe 3 is fixedly installed at the bottom right side of the crystallizer body 2. A filter pipe 4 is fixedly installed at the right end of the discharge pipe 3. A filter cover 12 for intercepting blockages is fixedly installed inside the filter pipe 4. A connecting pipe 5 is fixedly installed at the right end of the filter pipe 4. A flow meter 10 is fixedly installed outside the connecting pipe 5. A sewage pipe 11 is fixedly installed at the bottom of the filter pipe 4. A collection tank 6 is fixedly installed at the top of the base 1. A submersible pump 14 is fixedly installed inside the collection tank 6. A water pipe 15 is installed at the output end of the submersible pump 14. The end of the water pipe 15 away from the submersible pump 14 is fixedly connected to the top of the filter pipe 4.
[0021] In this embodiment: by setting up a flow meter 10, a submersible pump 14, and a water pipe 15, when the flow meter 10 detects that the medium flow rate in the connecting pipe 5 is less than a preset threshold, a blockage occurs in the discharge pipe 3 through the filter pipe 4 to discharge material into the connecting pipe 5. This facilitates the use of the submersible pump 14 and the water pipe 15 to pump water from the inside of the collection tank 6 into the filter pipe 4. The water outlet of the water pipe 15 is used to flush the filter cover 12, and the blockage is flushed away and discharged into the collection tank 6 through the drain pipe 11 at the bottom of the filter pipe 4 for collection, thereby facilitating the cleaning operation of the blockage.
[0022] The filter cover 12 is made of stainless steel with a surface covered with through holes and has a mesh size of 8.
[0023] As a technical optimization of this utility model, a filter baffle 13 is fixedly installed on the inner side of the collection tank 6, and a one-way valve 16 is fixedly installed on the outer side of the water pipe 15. The water pipe 15 is located on the right side of the filter cover 12. The sewage pipe 11 is located above the collection tank 6 and on the left side of the filter baffle 13, and the submersible pump 14 is located on the right side of the filter baffle 13.
[0024] In this embodiment: by setting up a filter baffle 13 and a collection tank 6, the blockages discharged into the collection tank 6 are filtered by the filter baffle 13 and moved to the left side of the filter baffle 13. The filtered water is then circulated by the submersible pump 14 to flush and clean the blockages in the filter pipe 4, which facilitates the cleaning operation of the blockages in the filter pipe 4.
[0025] As a technical optimization of this utility model, a first solenoid valve 7 is fixedly installed at the right end of the discharge pipe 3, and the discharge pipe 3 is fixedly connected to the left end of the filter pipe 4 through the first solenoid valve 7; a second solenoid valve 8 is fixedly installed at the left end of the connecting pipe 5, and the connecting pipe 5 is fixedly connected to the right end of the filter pipe 4 through the second solenoid valve 8, and the filter pipe 4 is located between the first solenoid valve 7 and the second solenoid valve 8.
[0026] In this embodiment: by setting the first solenoid valve 7 and the second solenoid valve 8, when the discharge operation of the discharge pipe 3 through the filter pipe 4 into the connecting pipe 5 is blocked, the first solenoid valve 7 and the second solenoid valve 8 are closed, so that the filter pipe 4 is in a closed state, which makes it convenient to start the submersible pump 14 to flush the filter cover 12 through the water pipe 15, thereby cleaning the blockage in the filter pipe 4.
[0027] As a technical optimization of this utility model, a third solenoid valve 9 is fixedly installed at the top of the sewage pipe 11, and the sewage pipe 11 is fixedly connected to the bottom of the filter pipe 4 through the third solenoid valve 9.
[0028] In this embodiment: by setting a third solenoid valve 9, when cleaning the inside of the filter tube 4, the third solenoid valve 9 opens and the flushed blockage is discharged into the collection tank 6 through the drain pipe 11 for collection.
[0029] The circuits, electronic components, and modules involved are all existing technologies that can be fully implemented by those skilled in the art, so there is no need to elaborate. The content protected by this application does not involve any improvement to the software and methods.
[0030] Working principle: When the discharge pipe 3 is obstructed from conveying material to the connecting pipe 5 through the filter pipe 4, the flow meter 10 installed above the connecting pipe 5 will detect that the medium flow rate in the connecting pipe 5 is less than the preset threshold. At this time, the crystallizer body 2 stops discharging material through the discharge pipe 3. At the same time, the first solenoid valve 7 and the second solenoid valve 8 are closed, and the third solenoid valve 9 is open. The submersible pump 14 is started to pump water from the collection tank 6 to the filter pipe 4 through the water pipe 15. The water outlet of the water pipe 15 is used to flush the filter cover 12, flushing away the blockage. The water is then discharged into the collection tank 6 through the drain pipe 11 at the bottom of the filter pipe 4. The water is then filtered by the filter baffle 13, allowing the submersible pump 14 to continuously pump water to clean the blockage in the filter pipe 4. After cleaning, the third solenoid valve 9 is closed and the first solenoid valve 7 and the second solenoid valve 8 are opened, allowing the crystallizer body 2 to continue conveying material to the connecting pipe 5 through the discharge pipe 3 and the filter pipe 4.
[0031] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. All electrical equipment in this utility model is powered by an external power source.
[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic cleaning type evaporation crystallization device, comprising a crystallizer body (2) fixedly installed on the top of a base (1), wherein a discharge pipe (3) is fixedly installed at the bottom right side of the crystallizer body (2), characterized in that: A filter pipe (4) is fixedly installed at the right end of the discharge pipe (3). A filter cover (12) for intercepting blockages is fixedly installed inside the filter pipe (4). A connecting pipe (5) is fixedly installed at the right end of the filter pipe (4). A flow meter (10) is fixedly installed outside the connecting pipe (5). A sewage pipe (11) is fixedly installed at the bottom of the filter pipe (4). A collection tank (6) is fixedly installed at the top of the base (1). A submersible pump (14) is fixedly installed inside the collection tank (6). A water pipe (15) is installed at the output end of the submersible pump (14). The end of the water pipe (15) away from the submersible pump (14) is fixedly connected to the top of the filter pipe (4).
2. The automatic cleaning type evaporation crystallization device according to claim 1, characterized in that: A filter baffle (13) is fixedly installed on the inner side of the collection tank (6), and a one-way valve (16) is fixedly installed on the outer side of the water pipe (15). The water pipe (15) is located on the right side of the filter cover (12).
3. The automatic cleaning type evaporation crystallization device according to claim 2, characterized in that: The drain pipe (11) is located above the collection tank (6) and to the left of the filter baffle (13), and the submersible pump (14) is located to the right of the filter baffle (13).
4. The automatic cleaning type evaporation crystallization device according to claim 1, characterized in that: A first solenoid valve (7) is fixedly installed at the right end of the discharge pipe (3), and the discharge pipe (3) is fixedly connected to the left end of the filter pipe (4) through the first solenoid valve (7).
5. The automatic cleaning type evaporation crystallization device according to claim 4, characterized in that: The left end of the connecting pipe (5) is fixedly installed with a second solenoid valve (8). The connecting pipe (5) is fixedly connected to the right end of the filter pipe (4) through the second solenoid valve (8). The filter pipe (4) is located between the first solenoid valve (7) and the second solenoid valve (8).
6. The automatic cleaning type evaporation crystallization device according to claim 1, characterized in that: A third solenoid valve (9) is fixedly installed at the top of the sewage pipe (11), and the sewage pipe (11) is fixedly connected to the bottom of the filter pipe (4) through the third solenoid valve (9).
Citation Information
Patent Citations
Automatic cleaning multi-effect evaporation crystallizer
CN211676387U