Novel heat exchanger scraper and heat exchange system

Abstract

The utility model provides a novel heat exchanger scraper and a heat exchange system, and relates to the technical field of heat exchangers. The heat exchanger scraper is a concave heat exchanger scraper, and a plurality of holes are formed in a panel of the heat exchanger scraper; and the heat exchanger scraper is not edged at one end of the long edge of the concave character opposite to the short edge of the concave character. The heat exchanger scraper is not edged, the thickness of the heat exchanger scraper is increased, in addition, the heat exchanger scraper is designed in a mode of being in contact with the condensation inner wall, the breakage rate in the using process is effectively reduced, the safety performance is improved, and the heat exchanger scraper is expected not to be replaced in the using process. And the service life is expected to be changed from periodical and planned replacement to infinite service life.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and more specifically, to a novel heat exchanger scraper and heat exchange system. Background Technology

[0002] The scraper condenser jacket serves as the cooling medium, and the material is cooled by the continuous rotation of the scrapers, which are evenly and orderly arranged on a cylindrical rotating shaft. Existing scrapers often break, causing the broken metal to enter the material and contaminate it, making material recovery difficult and increasing costs. Secondly, broken metal can also damage the equipment, posing safety risks and increasing maintenance costs.

[0003] Therefore, this application is hereby submitted. Utility Model Content

[0004] The purpose of this utility model is to provide a novel heat exchanger scraper and heat exchange system that can solve the above-mentioned technical problems.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, the embodiments of this utility model provide a novel heat exchanger scraper, which is a U-shaped scraper with multiple holes on the scraper panel.

[0007] At one end of the long side of the concave shape, opposite the short side, the heat exchanger scraper is not sharpened.

[0008] In an optional implementation, the thickness of the heat exchanger scraper is 4mm-6mm.

[0009] In an optional embodiment, multiple flow holes are provided in the middle area between the short side of the concave character and the long side without the blade.

[0010] Multiple fixing holes are provided at one end near the short side of the concave character.

[0011] In an optional implementation, the number of flow holes is ≥2, and the diameter is 4mm-6mm.

[0012] Secondly, embodiments of this utility model provide a heat exchange system including the heat exchanger scraper as described above. The heat exchange system includes a heat exchanger, which includes a heat exchange area disposed at the axis, a material channel, a heat exchanger sidewall, a cooling water jacket, and a heat insulation layer.

[0013] The material channel is located between the heat exchange area and the heat exchanger sidewall; the cooling water jacket is located on the side of the heat exchanger sidewall near the material channel; and the insulation layer is located on the outside of the heat exchanger sidewall.

[0014] In an optional implementation, multiple heat exchanger scrapers are detachably mounted at one end of the material channel away from the inner wall of the heat exchanger via fixing holes.

[0015] In an optional embodiment, the heat exchanger scrapers are arranged in a longitudinal row along the radial direction of the heat exchange area, and the heat exchanger scrapers in adjacent rows are staggered.

[0016] In an optional embodiment, the heat exchanger further includes a feed pipe, a discharge pipe, a cooling water pipe, and an insulation water pipe;

[0017] The cooling water pipe is connected to the cooling water jacket; the insulation water pipe is connected to the insulation layer.

[0018] In an optional implementation, the relative distance between the unsharpened side of the heat exchanger scraper and the inner wall of the heat exchanger is 1mm-2mm.

[0019] The beneficial effects of this utility model embodiment include:

[0020] The novel heat exchanger scraper provided in the embodiments of this utility model has an unsharpened blade and increased thickness. When applied in a heat exchange system, it is installed in a way that does not contact the material channel. By changing the layout and number of heat exchanger scrapers, the breakage rate of heat exchanger scrapers is reduced, thereby reducing safety risks. Moreover, the heat exchanger scrapers are expected to be replaced without replacement, transforming from periodic and planned replacement to an unlimited lifespan. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the heat exchange system provided in this embodiment from a first-view perspective;

[0023] Figure 2 This is a schematic diagram of the heat exchange system provided in this embodiment from a second perspective.

[0024] Figure 3 This is a schematic diagram of the heat exchange system provided in this embodiment from a third-person perspective;

[0025] Figure 4 This is a schematic diagram of the structure of the heat exchanger scraper provided in this embodiment;

[0026] Figure 5 This is a schematic diagram showing the distribution of the heat exchanger scraper in the heat exchanger according to this embodiment.

[0027] Figure 6 This is a schematic diagram showing the distribution of scrapers in a heat exchanger according to existing technology.

[0028] Icons: 100-Heat exchange system; 101-Frame; 102-Motor base plate; 103-Gear motor; 104-Rotary joint; 105-Self-aligning bearing; 106-Mechanical seal assembly; 110-Fixing hole; 111-Short side of the concave character; 112-Flow hole; 113-Long side of the concave character; 200-Heat exchanger; 201-Heat exchanger scraper; 202-Material channel; 203-Heat exchange area; 204-Cooling water jacket; 205-Insulation layer; 206-Heat exchanger sidewall; 207-First cooling water return pipe; 208-Second cooling water return pipe; 209-Discharge pipe; 210-Infeed pipe; 211-First cooling water inlet pipe; 212-Second cooling water inlet pipe; 213-Insulated water inlet pipe; 214-Insulated water outlet pipe; 215-Insulated water pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, 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, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0035] First Embodiment

[0036] Please refer to Figures 1-3 This embodiment provides a heat exchange system 100, which includes a heat exchanger 200. The heat exchanger 200 includes a heat exchange area 203 disposed at the center of the shaft, a material channel 202, a heat exchanger sidewall 206, a cooling water jacket 204, and a heat insulation layer 205.

[0037] The heat exchange zone 203 is an annular heat exchange zone, where a cooling or heating medium can circulate to cool or heat the material in the material channel 202. The type of medium can be selected according to actual needs, such as water. The material channel 202 is located between the heat exchange zone 203 and the heat exchanger sidewall 206.

[0038] It should be noted that after the material enters the material channel 202 in the heat exchanger 200, it achieves efficient cooling through the scraping action of the heat exchanger scraper 201 and the synergistic effect of the cooling water jacket 204. The heat exchanger scraper 201 is evenly distributed on the cylindrical wall of the axial heat exchange area 203. It is driven by the rotation of the motor to rotate the self-aligning bearing 105. The entire cylinder rotates with the self-aligning bearing 105, and the heat exchanger scraper 201 on the cylinder wall rotates accordingly.

[0039] The material channel 202 is distributed in a ring around the heat exchange area 203, and it is a ring-shaped material channel; in other embodiments of this utility model, the shape and distribution of the material channel can be reasonably adjusted according to actual needs.

[0040] In this embodiment, a spiral water guide plate is provided in the cooling water jacket 204, which enables the fluid to form a spiral flow path inside the cooler. This spiral flow increases the degree of fluid disturbance, and thorough mixing can more efficiently transfer heat, thereby improving cooling efficiency.

[0041] The material channel 202 in the heat exchanger 200 is equipped with multiple new heat exchanger scrapers 201, which help to cool down the material in the material channel 202. Specifically, multiple heat exchanger scrapers 201 are evenly installed at one end of the annular material channel 202 away from the inner wall of the heat exchanger 200, that is, the heat exchanger scrapers 201 are detachably installed on the side of the annular heat exchange channel near the heat exchange area 203 through the fixing hole 110.

[0042] In this embodiment, the heat exchanger scrapers 201 are arranged in a longitudinal row along the radial direction of the heat exchange region 203, and the heat exchanger scrapers 201 in adjacent rows are staggered.

[0043] Please refer to Figures 5-6 Specifically, the distribution of the heat exchanger scraper 201 in the heat exchanger 200 in this embodiment is based on the prior art ( Figure 6 Based on the design of the original design, an additional column is added between every two columns. For example, if the original design has 10 columns of heat exchanger scrapers 201, this embodiment adds 9 more columns, with 5 scrapers 201 in each column, for a total increase of 55 scrapers 201. The increased number of scrapers 201 facilitates more efficient material cooling. In other embodiments of this invention, the specific number of scrapers 201 is related to the area of ​​the annular heat exchange region 203 in the heat exchanger 200, and is rationally arranged according to actual needs.

[0044] Please refer to Figure 4 In this embodiment, the heat exchanger scraper 201 is a U-shaped heat exchanger scraper 201. Multiple holes are provided on the panel of the heat exchanger scraper 201. Multiple fixing holes 110 are provided at one end near the short side 111 of the U-shape. The function of the fixing holes 110 is to stably install the heat exchanger scraper 201 in the heat exchanger 200.

[0045] Specifically, the heat exchanger scraper 201 is detachably mounted on the side of the annular heat exchange channel near the heat exchange area 203 via fixing holes 110. In this embodiment, there are two fixing holes 110. In other embodiments of this invention, the number of fixing holes 110 can be adjusted as needed. In this embodiment, bolts are used for fixing, which facilitates replacement and disassembly.

[0046] In addition, multiple flow holes 112 are provided in the middle area between the short side 111 of the concave shape and the long side without the blade; the flow holes 112 help to cool the heat generated by the friction between the heat exchanger scraper 201 and the material and the pipe wall, and prevent the heat exchanger scraper 201 from overheating.

[0047] The number of flow holes is ≥2, and the diameter is 4mm-6mm. In this embodiment, the number of flow holes is 2, and the diameter is 5mm; in other embodiments of this utility model, the number and diameter of the flow holes can be reasonably adjusted according to the actual size of the heat exchanger scraper 201.

[0048] The thickness of the heat exchanger scraper 201 is 5mm, which is thicker than that of the heat exchanger scraper 201 in the prior art.

[0049] The height of the heat exchanger scraper 201 is not specifically described in this utility model, and it is set according to the actual situation. Specifically, in this embodiment, at one end of the long side 113 of the concave character opposite to the short side 111 of the concave character, the heat exchanger scraper 201 is not sharpened, and the relative distance between the unsharpened side of the heat exchanger scraper 201 and the inner wall of the heat exchanger 200 is 1mm-2mm, that is, it does not contact the inner wall of the heat exchanger 200.

[0050] The heat exchanger scraper 201 is made of carbon tool steel plate. In other embodiments, it can be replaced as needed.

[0051] It should be noted that in this embodiment, the heat exchanger scraper 201 is designed without sharpening, and the thickness of the heat exchanger scraper 201 is increased. Furthermore, the height of the heat exchanger scraper 201 is designed so that it does not contact the inner wall of the heat exchanger 200. This greatly reduces the risk of the heat exchanger scraper 201 breaking, effectively reducing equipment maintenance costs and the increased costs caused by material loss due to heat exchanger scraper 201 breakage. In addition, the number of times the heat exchanger scraper 201 needs to be replaced is greatly reduced in this embodiment, and its service life is expected to change from periodic and planned replacement to unlimited life.

[0052] Furthermore, the design of the heat exchanger scraper 201 in this embodiment is expected to extend the life of the heat exchanger scraper 201 to an unlimited life. Therefore, in other embodiments of this utility model, the heat exchanger scraper 201 can also be installed in a fixed form.

[0053] The cooling water jacket 204 is located on the side of the heat exchanger sidewall 206 near the material channel 202. It works together with the heat exchanger scraper 201 to cool the material, thus greatly improving the cooling efficiency.

[0054] The insulation layer 205 is located on the outer side of the heat exchanger sidewall 206. As a protective film on the surface of the heat exchanger 200, it can effectively prevent the material from solidifying and caking, ensuring that the temperature of the material output from the outlet reaches a fixed range, such as an inlet material temperature of about 70℃ and an outlet material temperature controlled at 43℃-45℃. Secondly, the insulation layer 205 can also effectively insulate against external heat, helping the heat exchanger 200 to work more efficiently, reducing energy consumption, and preventing the temperature of the condensate inside the heat exchanger 200 from dropping too quickly, thereby reducing heat loss and improving the system's energy efficiency.

[0055] The heat exchanger 200 also includes a feed pipe 210, a discharge pipe 209, a cooling water pipe, and an insulation water pipe 215; wherein, the cooling water pipe is connected to the cooling water jacket 204, and the cooling water pipe includes a cooling water inlet pipe and a cooling water return pipe, the cooling water inlet pipe includes a first cooling water inlet pipe 211 and a second cooling water inlet pipe 212; the cooling water return pipe includes a first cooling water return pipe 207 and a second cooling water return pipe 208; the insulation water pipe 215 includes an insulation water inlet pipe 213 and an insulation water outlet pipe 214, which are respectively connected to the insulation layer 205.

[0056] The heat exchange system 100 also includes a self-aligning bearing 105, a geared motor 103, a frame 101, a rotary joint 104, and a mechanical seal assembly 106.

[0057] The self-aligning bearing 105 rotates along with the motor, causing the heat exchanger scraper 201 to rotate as well, thus cooling the material. To ensure the stability of the motor operation, a motor base plate 102 is placed at the bottom of the motor and fixedly connected to the frame 101.

[0058] In this embodiment, the self-aligning bearing 105 is a spherical bearing. Spherical bearings have the characteristic of self-alignment, which can automatically adjust the alignment of the shaft to a certain extent, reduce abnormal loads caused by shaft deflection or eccentricity, and thus extend the service life of the bearing. In addition, the spherical shape design allows the bearing to adapt to various installation errors and unevenness of the bearing housing, thereby ensuring the smooth operation of the equipment.

[0059] The frame 101 is typically made of metal, which has good thermal conductivity and corrosion resistance. It can effectively protect the internal components of the heat exchanger 200 from the influence of the external environment and extend the service life of the equipment. The frame 101, through its robust structure, supports and fixes the various components inside the heat exchanger 200, ensuring that they remain stable during operation and avoiding damage due to vibration or external forces.

[0060] The rotary joint 104 is a special connection device that can still work normally when the heat exchanger 200 rotates, and the cooling effect will not be affected by the rotation of the heat exchanger 200.

[0061] The mechanical seal assembly 106 is connected to both ends of the pipes and container of the heat exchanger 200, serving to fix and support it, ensuring the structural stability and safe operation of the heat exchanger 200; secondly, it can also reduce energy loss during the condensation process.

[0062] In summary, the novel heat exchanger scraper 201 provided by the embodiments of this utility model is non-sharpened and has increased thickness. When applied in the heat exchange system 100, it is installed in a way that does not contact the material channel 202. By changing the layout and number of the heat exchanger scraper 201, the breakage rate of the heat exchanger scraper 201 is reduced, thus reducing safety risks. Moreover, the heat exchanger scraper 201 is expected to be replaced without replacement, transforming from periodic and planned replacement to an unlimited lifespan.

[0063] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A novel heat exchanger scraper, characterized in that, The heat exchanger scraper is a U-shaped scraper, and multiple holes are provided on the panel of the heat exchanger scraper; At one end of the long side of the concave character opposite the short side, the heat exchanger scraper is not sharpened.

2. The heat exchanger scraper according to claim 1, characterized in that, The thickness of the heat exchanger scraper is 4mm-6mm.

3. The heat exchanger scraper according to claim 1, characterized in that, Multiple flow holes are provided in the middle area between the short side of the concave character and the long side without the blade; Multiple fixing holes are provided at one end near the short side of the concave character.

4. The heat exchanger scraper according to claim 3, characterized in that, The number of flow holes is ≥2, and the diameter is 4mm-6mm.

5. A heat exchange system comprising a heat exchanger scraper as described in any one of claims 1-4, characterized in that, The heat exchange system includes a heat exchanger, which includes a heat exchange area disposed at the center of the shaft, a material channel, a heat exchanger sidewall, a cooling water jacket, and an insulation layer. The material channel is located between the heat exchange area and the side wall of the heat exchanger; the cooling water jacket is located on the side of the heat exchanger side wall near the material channel; and the insulation layer is located on the outside of the side wall of the heat exchanger.

6. The heat exchange system according to claim 5, characterized in that, Multiple heat exchanger scrapers are detachably mounted at one end of the material channel away from the inner wall of the heat exchanger through fixing holes.

7. The heat exchange system according to claim 6, characterized in that, The heat exchanger scrapers are arranged in a longitudinal row along the radial direction of the heat exchange area, and the heat exchanger scrapers in adjacent rows are staggered.

8. The heat exchange system according to claim 5, characterized in that, The heat exchanger also includes a feed pipe, a discharge pipe, a cooling water pipe, and an insulation water pipe; The cooling water pipe is connected to the cooling water jacket; the heat insulation water pipe is connected to the heat insulation layer.

9. The heat exchange system according to claim 5, characterized in that, The distance between the unsharpened side of the heat exchanger scraper and the inner wall of the heat exchanger is 1mm-2mm.

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