Anti-blocking device and evaporation system
By introducing anti-blocking devices into the evaporation system, the cutting parts and circulating water chamber designs are used to solve the problem of material blockage, the cutting efficiency and continuous operation capability of the system are improved, and energy consumption and downtime frequency are reduced.
Patent Information
- Application Number
- CN202422080888.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The problem of material blockage in the evaporation system leads to frequent shutdowns, resulting in energy waste and impact on production progress. The existing solutions are difficult to effectively prevent.
An anti-blocking device is designed, including a cutting piece and a circulating water cavity. The cutting piece consists of a straight part and a bent part. The edge is designed as a double-sided edge to cut larger particles and control the bearing seat temperature through the circulating water cavity to adapt to a high temperature, high salt and high corrosion environment.
Effectively chop large particles in the material, enhance turbulence intensity, extend the continuous operation time of the evaporation system, reduce downtime frequency, reduce energy consumption, and achieve efficient and low-consumption unattended operation.
Smart Images
Figure CN223154108U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of evaporation, and particularly relates to a clogging prevention device and an evaporation system. Background Art
[0002] When designing and calculating an evaporation system, the heat transfer area is usually calculated based on physical properties and heat balance. That is to say, the design of the evaporation system is based on the stability of physical properties to achieve the final dynamic balance. When problems such as coking of materials and clogging of heat exchange pipes occur, it will cause the heat transfer coefficient or heat transfer area to deviate seriously from the design value, and the operating point to deviate from the design point, ultimately resulting in the collapse of the evaporation system.
[0003] According to past experience, the system needs to be shut down for cleaning within no more than 2 days of operation. The frequent start and stop of the evaporation system will cause a large amount of energy waste and seriously affect the production progress, which is unacceptable in normal production. The occurrence of coking or clogging during the operation of the evaporation system is one of the important factors affecting the start and stop of the evaporation system. The existing solutions generally try to select a more adaptable evaporation system during the design and selection stage. However, for some materials (such as sewage), due to the uncertainty of the composition, such problems are likely to occur and the results are difficult to predict. Or use an already built system, but due to the large transformation cost, the enterprise will fall into an operating dilemma where it is neither good to abandon nor easy to rectify. Therefore, it is urgent to solve the problem of material clogging in the evaporation system. Summary of the Utility Model
[0004] The utility model aims at the technical problems existing in the prior art, and provides a clogging prevention device and an evaporation system.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] In a first aspect, a clogging prevention device is provided, which includes a power member and a cutting member provided on the power member for crushing materials.
[0007] Wherein, the cutting member includes a straight portion and a bent portion connected to one side of the straight portion. The other side of the straight portion is fixedly connected to the power member. The bending direction of the bent portion is the same as the rotation direction of the power member. The cutting edge on the straight portion is a double-sided edge, and the cutting direction is the same as the bending direction of the bent portion.
[0008] As a further technical solution, a plurality of the cutting members are provided, and every two of them are set as a group, so that a plurality of groups of the cutting members are arranged at intervals on the power member.
[0009] Wherein, the two cutting members in a group are arranged in opposite directions.
[0010] As a further technical solution, the longitudinal section of the bent portion is configured as an isosceles trapezoid, and the upper base of the isosceles trapezoid is located on the cutting edge side of the straight portion.
[0011] As a further technical solution, the power component includes a bearing housing provided with a circulating water chamber, and the circulating water chamber is connected to a water cooling system through a circulating water pipe.
[0012] As a further technical solution, the circulating water chamber is arranged on the outer wall or inner wall of the bearing housing to control the temperature of the bearing housing.
[0013] As a further technical solution, the power component further includes a motor, a gearbox, and a sealing assembly connected in sequence. The bearing housing is arranged between the gearbox and the sealing assembly;
[0014] Wherein, the output shaft of the gearbox extends out of the sealing assembly, and the cutting member is arranged on the output shaft extending out of the sealing assembly.
[0015] As a further technical solution, the power component further includes a mounting flange arranged between the bearing housing and the sealing assembly.
[0016] The second aspect of protection: An evaporation system includes the anti-blocking device described in the first aspect.
[0017] As a further technical solution, the evaporation system includes a receiving member and a filter located inside the receiving member. One side of the anti-blocking device provided with the cutting member is placed on the filter to cut the material entering the filter;
[0018] The receiving member is connected with two pipelines, and one pipeline transports the material into the receiving member. After being crushed, the material is sent to the heater through the other pipeline.
[0019] As a further technical solution, the evaporation system further includes a circulating pump and a separator. The circulating pump, the receiving member, the heater, and the separator are connected in sequence through pipelines;
[0020] Wherein, the feed port of the circulating pump is communicated with the separator through a pipeline, so as to form a circulating system among the circulating pump, the receiving member, the heater, and the separator.
[0021] The beneficial effects of the present utility model are:
[0022] 1. Due to the structural design of the cutting member in this device, particles can be guided to the cutting edge for cutting, and larger particles in the material can be effectively chopped, improving the cutting efficiency; in addition, by arranging a circulating water chamber on the bearing housing, this device can be suitable for high-temperature, high-salt, and highly corrosive environments, avoiding frequent shutdowns of the equipment and greatly extending the service life;
[0023] 2. The evaporation system with a clogging prevention device can effectively shred larger particles in the material, enhance the turbulence intensity, and features high efficiency, low energy consumption, and unattended operation.
[0024] 3. By setting the cutting edge of the straight part in the same bending direction as the bending part, the air flow guiding effect is enhanced, and the particulate impurities attached to the pipe wall and near the pipe wall are guided to the cutting edge for cutting.
[0025] 4. This structural design can prevent blockages from accumulating and adhering at positions such as the tube sheet, partition plate, and pipe elbows of the heater, effectively extending the continuous operation time by 4 to 10 times. For the evaporation system that originally needed to be cleaned every two days, it can now operate for more than a week before cleaning is required. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic structural diagram of a clogging prevention device of the present utility model;
[0027] Figure 2 For the present utility model Figure 1 It is a schematic structural diagram after being placed in the receiving member;
[0028] Figure 3 It is a schematic structural diagram of a set of cutting members after being placed in the receiving member, where the arrow indicates the cutting direction of the cutting members;
[0029] Figure 4 、 Figure 5 Respectively Figure 3 It is a sectional structural diagram in the A - A and B - B directions in
[0030] Figure 6 It is a schematic structural diagram of the evaporation system, where the arrow direction indicates the flow direction of the material, liquid, or gas.
[0031] In the drawings, the list of components represented by each reference numeral is as follows:
[0032] Power member 1, circulating water chamber 11, bearing seat 12, circulating water pipe 13, motor 14, gearbox 15, output shaft 151, sealing assembly 16, mounting flange 17;
[0033] Cutting member 2, straight part 21, bending part 22, cutting edge 23;
[0034] Cutting surface 3, receiving member 4, filter 5, pipe 6;
[0035] Heater 7, steam inlet 71, condensate outlet 72;
[0036] Circulation pump 8, separator 9. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.
[0038] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0039] In the description of the present application, the term "for example" is used to mean "serving as an example, illustration, or explanation". Any embodiment described as "for example" in the present application is not necessarily construed as being more preferred or having more advantages than other embodiments. In order to enable any person skilled in the art to implement and use the present invention, the following description is given. In the following description, details are set forth for the purpose of explanation. It should be understood that those of ordinary skill in the art can recognize that the present invention can be implemented without the use of these specific details. In other instances, well-known structures and processes are not described in detail to avoid unnecessary details from obscuring the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope that conforms to the principles and features disclosed in the present application.
[0040] Embodiment 1
[0041] Due to the causes of coking and blockage, on the one hand, it is related to the properties of substances, and on the other hand, it is related to the material flow rate. The decrease in the flow rate will cause the blockage or coking to become more serious. Therefore, this embodiment provides an anti-blocking device that can be applied to an evaporation system. Refer to Figure 1 、 Figure 2 , which specifically includes a power member 1 and a cutting member 2 provided on the power member 1 for crushing materials; wherein, the cutting member 2 includes a straight portion 21 and a bent portion 22 connected to one side of the straight portion 21. The other side of the straight portion 21 is fixedly connected to the power member 1. The bending direction of the bent portion 22 is the same as the rotation direction of the power member 1. The cutting edge 23 on the straight portion 21 is a double-sided edge and the cutting direction is the same as the bending direction of the bent portion 22.
[0042] In this embodiment, refer to Figures 3 - 5, the power component 1 is used to provide power to the cutting component 2 to make it rotate to cut materials. There is no cutting edge 23 on the bending part 22, so it does not have the function of cutting materials. However, in combination with its design direction, it can guide the materials to the cutting edge 23 for cutting; the straight part 21 is a sheet-like structure, and the angle α between the cutting edge 23 and the cutting surface 3 is greater than 90°. The depth h of the cutting edge 23 accounts for more than half of the thickness of the straight part 21 to improve the cutting efficiency.
[0043] In the specific implementation process, several cutting components 2 are provided, and every two are set as a group, so that several groups of the cutting components 2 are arranged at intervals on the power component 1; among them, the two cutting components 2 in a group are arranged in the opposite direction. That is, two straight parts 21 and two bending parts 22 are included in a group of the cutting components 2. The two straight parts 21 are symmetrically arranged in the opposite direction on the power component 1, so that one end of the straight part 21 far from the power component 1 is connected to the bending part 22. The setting distance and quantity of each group of the cutting components 2 on the power component 1 are selected according to the requirements. For example, when installed between the pipes 6 in the evaporation system, it can be reasonably allocated according to the pipe diameter and the properties of the materials to improve the cutting efficiency.
[0044] More specifically, the longitudinal section of the bending part 22 is constructed as an isosceles trapezoid, and the upper base of the isosceles trapezoid is located on the side of the cutting edge 23 of the straight part 21, which is convenient for guiding the movement direction of the materials.
[0045] In the specific implementation process, see Figure 2 , the power component 1 includes a bearing seat 12 provided with a circulating water chamber 11. The circulating water chamber 11 is connected to a water cooling system through a circulating water pipe 13. The bearing seat 12 is cooled through the circulating water chamber 11 and the cold water system, that is, the heat energy on the bearing seat 12 is exchanged with the cooling water in the circulating water chamber 11 for cooling; more specifically, the circulating water chamber 11 is arranged on the outer wall or inner wall of the bearing seat 12 or one end face facing the cutting component 2 to control the temperature of the bearing seat 12. The water cooling system is external and is a prior art, so it will not be elaborated here.
[0046] In the specific implementation process, see Figures 1 - 2, the power component 1 further includes a motor 14, a gearbox 15, and a sealing assembly 16 that are connected in sequence. The bearing housing 12 is disposed between the gearbox 15 and the sealing assembly 16. Among them, the output shaft 151 of the gearbox 15 extends out of the sealing assembly 16, and the cutting member 2 is disposed on the output shaft 151 that extends out of the sealing assembly 16. The output shaft of the motor 14 is connected to the gearbox 15 to provide driving force to the gearbox 15. When the circulating water chamber 11 is disposed on the inner wall or outer wall of the bearing housing 12, the setting of the sealing assembly 16 prevents dust from entering, thereby extending its service life. The sealing assembly 16 can be a baffle structure arranged parallel to the bearing housing 12;
[0047] For connection stability, the power component 1 further includes a mounting flange 17 disposed between the bearing housing 12 and the sealing assembly 16.
[0048] Embodiment 2
[0049] An evaporation system includes the anti-blocking device described in Embodiment 1;
[0050] See Figure 6 , the anti-blocking device can be arranged on the circulating pipeline of the evaporation system to protect the heat exchanger, or integrated with the separator 9 or the heater 7 to break the coking particles or large particle blocking materials in the materials in the evaporation system, thereby extending the cleaning cycle of the evaporation system. This method is efficient, unmanned, and low in energy consumption.
[0051] For example, when the anti-blocking device is placed on the circulating pipeline of the evaporation system, the evaporation system includes a receiving member 4 and a filter 5 located inside the receiving member 4. The side of the anti-blocking device provided with the cutting member 2 is placed on the filter 5 to cut the materials entering the filter 5. The receiving member 4 is connected with two pipelines 6, and one pipeline 6 transports the materials into the receiving member 4. After being broken, the materials are sent to the heater 7 through the other pipeline 6. The filter 5 is used to block large particle substances between the filter 5 and the receiving member 4, and the materials entering the filter 5 are cut into smaller particles under the action of the cutting member 2 of the anti-blocking device. At the same time, due to the action of the cutting member 2, the turbulent flow characteristics of the materials flowing in the receiving member 4 are strengthened to effectively prevent the materials from aggregating and adhering in large quantities, thereby greatly extending the cleaning cycle of the entire system.
[0052] The filter 5 can be a filter screen structure or a cylindrical structure composed of a filter screen structure to filter large particles entering the receiving member 4, and the mesh size of the filter screen is selected according to actual needs.
[0053] It can be further explained that the evaporation system further includes a circulation pump 8 and a separator 9. The circulation pump 8, the accommodating member 4, the heater 7, and the separator 9 are sequentially connected through a pipeline 6. Among them, the feed port of the circulation pump 8 is communicated with the separator 9 through the pipeline 6, so as to form a circulation system among the circulation pump 8, the accommodating member 4, the heater 7, and the separator 9. That is, after the material from the circulation pump 8 enters the accommodating member 4 through the pipeline 6, large-particle materials are filtered outside the filter 5, while small-particle materials enter the filter 5 and are cut by the cutting member 2 and then flow out of the discharge port of the accommodating member 4 into the pipeline 6, and then pass through the heater 7 and the separator 9 in sequence, and then are transported to the circulation pump 8 through the pipeline 6 to complete a cycle.
[0054] Preferably, the heater 7 is provided with a steam inlet 71 and a condensate outlet 72.
[0055] The working principle of the present invention is as follows:
[0056] During the heating process of the material, coking particulate matters, entangled and agglomerated substances are formed. As the material circulates and flows, after flowing into the anti-blocking device, the filter 5 will intercept the too-large blocking substances, and the high-speed rotating cutting member 2 will cut the small-sized blocking materials into particles with a very small diameter. At the same time, the turbulent flow characteristics of the material flow are greatly enhanced, which can hinder the aggregation and adhesion of the blocking substances at positions such as the tube sheet, partition plate of the heater 7, and elbow of the pipeline 6, thereby greatly prolonging the cleaning cycle of the entire system.
[0057] It should be noted that in the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0058] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic inventive concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0059] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.
Claims
1. A clogging prevention device, characterized in that, It includes a power member (1) and a cutting member (2) provided on the power member (1) for crushing materials. Among them, the cutting member (2) includes a straight portion (21) and a bent portion (22) connected to one side of the straight portion (21). The other side of the straight portion (21) is fixedly connected to the power member (1). The bending direction of the bent portion (22) is the same as the rotation direction of the power member (1). The cutting edge (23) on the straight portion (21) is a double-sided edge, and the cutting direction is the same as the bending direction of the bent portion (22).
2. The anti-blocking device according to claim 1, characterized in that, A number of the cutting members (2) are provided, and every two of them are set as a group, so that several groups of the cutting members (2) are spaced and arranged on the power member (1). Among them, the two cutting members (2) in a group are arranged in the opposite direction.
3. The anti-blocking device according to claim 1, characterized in that, The longitudinal section of the bent portion (22) is constructed as an isosceles trapezoid, and the upper base of the isosceles trapezoid is located on the side of the cutting edge (23) of the straight portion (21).
4. The anti-clogging device according to claim 1, characterized in that, The power member (1) includes a bearing seat (12) provided with a circulating water chamber (11). The circulating water chamber (11) is connected to a water cooling system through a circulating water pipe.
5. The anti-blocking device according to claim 4, characterized in that The circulating water chamber (11) is arranged on the outer wall or the inner wall of the bearing seat (12) to control the temperature of the bearing seat (12).
6. The anti-clogging device according to claim 4, wherein The power member (1) further includes a motor (14), a gearbox (15), and a sealing component (16) connected in sequence. The bearing seat (12) is arranged between the gearbox (15) and the sealing component (16). Among them, the output shaft (151) of the gearbox (15) extends out of the sealing component (16), and the cutting member (2) is arranged on the output shaft (151) extending out of the sealing component (16).
7. The anti-blocking device according to claim 6, wherein The power member (1) further includes a mounting flange (17) arranged between the bearing seat (12) and the sealing component (16).
8. An evaporation system, characterized in that, It includes the anti-blocking device according to any one of claims 1-7.
9. The evaporation system according to claim 8, wherein It includes a receiving member (4) and a filter (5) located inside the receiving member (4). The side of the anti-blocking device provided with the cutting member (2) is placed against the filter (5) to cut the materials entering the filter (5). Two pipes (6) are connected to the receiving member (4). One pipe (6) transports materials into the receiving member (4), and after being crushed, they are sent to a heater (7) through the other pipe (6).
10. The evaporation system according to claim 9, characterized in that, It further includes a circulating pump (8) and a separator (9). The circulating pump (8), the receiving member (4), the heater (7), and the separator (9) are connected in sequence through pipes (6). Among them, the inlet of the circulating pump (8) is communicated with the separator (9) through a pipe (6), so as to form a circulating system among the circulating pump (8), the receiving member (4), the heater (7), and the separator (9).