Primary cooler
By adopting the innovative design of the low-temperature water section and circulating water section tube bundle assembly in the primary cooler, combined with anti-blocking nozzles, support plates and reinforcement plates, the problem of increased heat exchange area caused by the large-scale coke oven is solved, achieving cost reduction and improved cooling effect.
Patent Information
- Application Number
- CN202422555909.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The large-scale coke oven leads to an increase in the heat exchange area of the primary cooler, resulting in a significant increase in manufacturing and production costs.
The low-temperature water section and circulating water section tube bundle assembly are installed from bottom to top, combined with anti-blocking nozzles and spray pipes to achieve direct and indirect cooling, reduce the heat exchange area, and improve the stability of the tube bundle through support plates and reinforcement plates, reducing the height and cost of the primary cooler.
It improves the cooling effect, reduces the heat exchange area and manufacturing cost, ensures the stable operation of the primary cooler, reduces resource consumption and environmental burden, and simplifies the maintenance process.
Smart Images
Figure CN223425761U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coking heat exchange equipment, in particular to a primary cooler. Background Art
[0002] The initial gas cooling process is as follows: Gas from the coke oven, at 80-82°C, flows along the gas intake pipeline through a gas-liquid separator, then enters the top of a horizontal tube primary gas cooler. After cooling to 21-22°C, the gas enters an electrostatic tar collector to remove tar mist and further purify the gas. At the top of the primary cooler, a cleaning fluid is used to clean impurities such as tar and naphthalene from the outer walls of the heat exchange tubes, effectively cooling the gas within the primary cooler.
[0003] The large-scale coke oven means increasing the geometric dimensions and effective volume of the carbonization chamber to improve the production capacity of the coke oven. The large-scale coke oven is conducive to improving labor productivity, thermal efficiency, and economic benefits. It is also more beneficial to environmental protection. Therefore, the large-scale coke oven is the general trend of the development of world coking technology.
[0004] With the increase in the size of coke ovens and changes in coal loading methods, primary coolers will inevitably develop in the direction of large-scale. However, the large-scale primary cooler will cause a significant increase in the heat exchange area, resulting in a significant increase in manufacturing and production costs. Utility Model Content
[0005] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a pre-cooler to solve the problem that the manufacturing and production costs are greatly increased due to the increase in heat exchange area caused by the large-scale pre-cooler.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] A primary cooler comprises a body, a gas outlet, a low-temperature water section tube bundle assembly, a low-temperature water section spray assembly, a liquid shut-off tray, a circulating water section tube bundle assembly, a circulating water section spray assembly and a gas inlet; the body is arranged vertically, the gas outlet is fixedly connected to the bottom of the body, and the gas inlet is fixedly connected to the top of the body; the low-temperature water section tube bundle assembly, the low-temperature water section spray assembly, the liquid shut-off tray, the circulating water section tube bundle assembly, and the circulating water section spray assembly are installed in the body from bottom to top.
[0008] Furthermore, the circulating water section spray assembly has the same structure as the low-temperature water section spray assembly, both including a spray pipe, on which a plurality of downward anti-blocking nozzles are provided, and the spray pipe is connected to the cleaning medium pipeline.
[0009] Furthermore, it also includes a first mounting tube, a second mounting tube, and a third mounting tube. The second mounting tube and the third mounting tube are fixedly connected to the side wall of the main body. Both ends of the spraying tube are installed in the first mounting tube and the second mounting tube. The first mounting tube and the third mounting tube are connected by a flange, and the spraying tube and the second mounting tube are connected by a flange.
[0010] Furthermore, a cleaning medium valve is provided on the cleaning medium pipeline, and a spraying liquid valve is provided at the end of the spraying pipe.
[0011] Furthermore, the low-temperature water section tube bundle assembly has the same structure as the circulating water section tube bundle assembly, both including multiple rows of tube bundles, which are equally spaced, parallel to each other, and arranged alternately in height; each row of tube bundles is winding multiple times, and its shape is like a snake, with a straight tube in the middle and curved tubes at both ends.
[0012] Furthermore, the two ends of the tube bundle of the low-temperature water section tube bundle assembly are respectively connected to the low-temperature water inlet and the low-temperature water outlet through connecting pipes; the two ends of the tube bundle of the circulating water section tube bundle assembly are respectively connected to the circulating water inlet and the circulating water outlet through connecting pipes; the tube bundle and the connecting pipe are threadedly connected.
[0013] Furthermore, it also includes a reinforcing plate, which is fixed between the upper and lower straight tubes of each row of tube bundles.
[0014] Furthermore, it also includes a support plate, which is arranged at the top and bottom ends of the tube bundle to support the tube bundle. The support plate is provided with an arc-shaped notch corresponding to the straight tubes, and the straight tubes at the top and bottom ends of each column of the tube bundle are placed in the arc-shaped notch; the straight tubes of the tube bundle in three adjacent columns form a triangle, and the shape of the triangle is adjusted by the position of the arc-shaped notch.
[0015] Furthermore, the liquid cut-off plate includes an upper baffle, a first spray liquid outlet and a lower collecting plate; the upper baffle is an isosceles triangle, and the two bottom ends are provided with vertical downward lower edges; the two lower collecting plates are downwardly inclined inclined plates, symmetrically arranged on both sides below the upper baffle, and the top is provided with a vertical upward upper edge, and the upper edge is located inside the lower edge; the first spray liquid outlet is located at the bottom end of the lower collecting plate.
[0016] Furthermore, a second spray liquid outlet is provided at the bottom of the body, and the second spray liquid outlet is connected to the condensate tank pipeline.
[0017] Furthermore, it also includes a heating water section tube bundle assembly, which is arranged above the circulating water section tube bundle assembly.
[0018] Compared with the prior art, the beneficial effects of the present invention are:
[0019] 1. The low-temperature water section tube bundle assembly, low-temperature water section spray assembly, liquid shut-off plate, circulating water section tube bundle assembly, and circulating water section spray assembly of the utility model are installed in a bottom-up manner within the main body. The low-temperature water section spray assembly and the circulating water section spray assembly spray liquid downward, which not only cleans impurities such as naphthalene from the outside of the tube bundle, but also directly exchanges heat with the coal gas for direct cooling. The low-temperature water tube bundle and the circulating water tube bundle of the low-temperature water section tube bundle assembly and the circulating water section tube bundle assembly perform indirect cooling, using direct cooling and indirect cooling through heat exchange pipes to improve cooling efficiency and reduce heat exchange area.
[0020] 2. The spray pipe of this utility model uses a blockage-resistant nozzle and is connected to a cleaning medium pipeline. The cleaning medium pipeline is equipped with a cleaning medium valve to form a cleaning device. The end of the spray pipe is equipped with a spray liquid valve. Regularly opening the cleaning medium valve and closing the spray liquid valve to clean the spray pipe can effectively prevent blockage of the pre-cooler and ensure stable operation of the pre-cooler.
[0021] 3. In the prior art, the heat exchange tubes in pre-coolers are welded to tube sheets, with external tube boxes. These relatively thick tube sheets do not exchange heat, resulting in high costs. The present invention supports and secures the multiple tube bundles using support plates. In each tube bundle, a reinforcing plate is fixed between the upper and lower straight tubes. This increases strength while increasing the heat exchange area, reducing the heat exchange tube area, and lowering the overall height of the pre-cooler. Furthermore, the invention eliminates the need for tube boxes, significantly reducing costs.
[0022] 4. In the prior art, the welding of heat exchange tubes and tube sheets in the primary cooler has many leakage points, making maintenance difficult. The tube bundle of the utility model is installed in the primary cooler body through a support plate and connecting pipes, with fewer direct connection points with the primary cooler body, making maintenance easier.
[0023] 5. The support plate of this utility model is provided with arc-shaped notches corresponding to the straight tubes. The straight tubes at the top and bottom of each tube bundle are placed in the arc-shaped notches. The straight tubes of three adjacent tube bundles form a triangle, and the shape of the triangle is adjusted by the position of the arc-shaped notches. This not only provides stable support, but also allows for adjustment of the vertical and horizontal spacing of the tube bundle.
[0024] 6. The utility model is provided with a liquid cut-off plate. After washing, the coal gas hits the upper baffle, flows downward along the downward edge, hits the lower collecting plate, and the coal gas enters the space between the two lower collecting plates and goes downward into the low-temperature water section; the spray liquid is discharged into the condensate tank through the spray liquid outlet, and after separation and replenishment, the spray liquid is sent to the spray liquid inlet for recycling. By recycling and reusing the spray liquid, the consumption of resources and the burden on the environment can be significantly reduced.
[0025] 7, The utility model discloses the bottom of main part is equipped with second spraying liquid export, and second spraying liquid export is connected with condensate tank pipeline. Spraying liquid is gathered to the bottom of primary cooler, and is discharged to condensate tank through second spraying liquid export, and after separating and supplementing spraying liquid, is sent to spraying liquid inlet, and is circularly used, and through recycling and reusing spraying liquid, can significantly reduce the consumption of resources and the burden of environment. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is the main view of the structure of the utility model.
[0027] Figure 2 It is the A-A section view of the utility model. Figure 1
[0028] Figure 3 It is the B-B section view of the utility model. Figure 1
[0029] Figure 4 It is the C-C section view of the utility model. Figure 1
[0030] Figure 5 It is the structure schematic diagram of the utility model support plate.
[0031] Figure 6 It is the structure schematic diagram of the utility model pipe bundle.
[0032] Figure 7 It is the D-D section view of the utility model. Figure 6
[0033] Figure 8 It is the structure schematic diagram of the utility model circulating water section spraying assembly and low temperature water section spraying assembly.
[0034] In the drawing: 1-main body 11-wallboard 12-bottom plate 13-top plate 2-gas outlet 3-low temperature water section pipe bundle assembly 31-low temperature water inlet 32-low temperature water outlet 4-liquid disc 41-upper baffle 42-lower collection plate 43-first spraying liquid export 5-circulating water section pipe bundle assembly 51-circulating water inlet 52-circulating water outlet 53-connecting pipe 54-ellbow 55-pipe bundle 56-straight pipe 57-semi-circular arc elbow 58-stiffener 59-support plate 510-branch plate 511-bracket 512-semi-circular arc gap 6-circulating water section spraying assembly 61-spraying pipe 62-anti-blocking nozzle 63-first mounting pipe 64-second mounting pipe 65-third mounting pipe 67-cleaning medium valve 68-spraying liquid valve 7-gas inlet 8-low temperature water section spraying assembly 101-diffusion port 102-manhole 103-second spraying liquid export DETAILED DESCRIPTION
[0035] The embodiments of the present application will be described in detail below, in order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0036] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0037] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements inside.
[0038] For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0039] In the description of the present application, it should be noted that the terms used herein are only for the description of the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, it means that the presence of the features, steps, operations, devices, components and / or their combinations.
[0040] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0041] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.
[0042] [Example]
[0043] like Figure 1-8 As shown, a primary cooler includes a body 1, a gas outlet 2, a low-temperature water section tube bundle assembly 3, a low-temperature water section spray assembly 8, a liquid cut-off plate 4, a circulating water section tube bundle assembly 5, a circulating water section spray assembly 6 and a gas inlet 7.
[0044] The main body 1 is a vertically arranged rectangular cylinder structure, and four wall panels 11 on the front, back, left and right sides form a rectangular cylinder. The wall panels 11 are vertically fixed to the bottom panel 12, and the top panel 13 is fixed to the top of the wall panels 11.
[0045] The gas inlet 7 is vertically mounted and fixed perpendicularly to the center of the top plate 13. The vent 101 and manhole 102 are also fixed to the top plate 13, located to the left and right of the gas inlet 7. The gas outlet 2, manhole 102, and second spray liquid outlet 103 are located at the bottom of the precooler. The gas outlet 2 is horizontally fixed to the left wall, while the manhole 102 and second spray liquid outlet 103 are fixed to the right wall.
[0046] The low-temperature water section tube bundle assembly 3, the low-temperature water section spray assembly 8, the liquid cut-off plate 4, the circulating water section tube bundle assembly 5, and the circulating water section spray assembly 6 are installed in the rectangular cylinder of the main body 1 from bottom to top.
[0047] like Figure 1 、 Figure 3 、 Figure 8As shown, the circulating water section spray assembly 6 and the low-temperature water section spray assembly 8 have the same structure. In this embodiment, they consist of six spray assemblies arranged longitudinally front and back. Each spray assembly includes a spray pipe 61. Spray pipes 61 are arranged longitudinally and mounted horizontally on the front and rear wall panels via mounting pipes. Multiple downward-facing anti-clogging nozzles 62 are evenly distributed on spray pipes 61 within the main body 1. The circulating water section spray assembly 6 and the low-temperature water section spray assembly 8 spray liquid downward, which not only cleans impurities such as naphthalene from the exterior of the tube bundle but also directly exchanges heat with the coal gas, providing direct cooling.
[0048] The mounting pipes include a first mounting pipe 63, a second mounting pipe 64, and a third mounting pipe 65. The third mounting pipe 65 and the second mounting pipe 64 are fixedly connected to the front and rear side walls. The first mounting pipe 63 and the third mounting pipe 65 are connected by flanges. The inner diameters of the first mounting pipe 63 and the second mounting pipe 64 are slightly larger than the diameter of the spray pipe 61. The front and rear ends of the spray pipe 61 are respectively installed in the first mounting pipe 63 and the second mounting pipe 64. The second mounting pipe 64 is connected to the rear end of the spray pipe 61 by a flange.
[0049] The rear end of the spray pipe 61 is equipped with a spray liquid valve 68, which is connected to the spray liquid pipeline. A branch line is also connected to the cleaning medium valve 67, forming a cleaning device. The cleaning medium valve 67 is connected to the cleaning medium pipeline. The spray liquid is sprayed downward, cleaning impurities such as tar from the exterior of the pipe bundle and also directly exchanging heat with the coal gas, providing a direct cooling effect. The cleaning medium is steam or washing oil. The cleaning medium valve 67 is periodically opened, and the spray liquid valve 68 is closed, to clean the spray pipe 61. During normal operation, the cleaning medium valve 67 is closed, and the spray liquid valve 68 is opened.
[0050] like Figure 1 , Figure 4-7 As shown, the low-temperature water section tube bundle assembly 3 has the same structure as the circulating water section tube bundle assembly 5, including multiple rows of tube bundles. In this embodiment, there are six rows of tube bundles. The six rows of tube bundles are evenly spaced and arranged parallel to each other. The first, third, and fifth rows of tube bundles have the same height, and the second, fourth, and sixth rows of tube bundles have the same height. The first, third, and fifth rows of tube bundles are lower than the second, fourth, and sixth rows of tube bundles.
[0051] The low-temperature water section tube bundle assembly's two ends are connected to the low-temperature water inlet 31 and low-temperature water outlet 32 via connecting pipes 53 and elbows 54, respectively. The circulating water section tube bundle assembly's two ends are connected to the circulating water inlet 51 and circulating water outlet 52, respectively, via connecting pipes 53 and elbows 54. Connecting pipes 53 are fixed to the wall panel 12. One end of connecting pipe 53 is threadedly connected to the tube bundle, and the other end is welded to elbow 54.
[0052] Each tube bundle 55 twists and turns several times, forming a snake-like shape. Its center section consists of evenly spaced, parallel, horizontal straight tubes 56, and its ends are formed by semicircular curved tubes 57. Reinforcement plates 58 are fixed between the upper and lower straight tubes 56 of each tube bundle. These plates reinforce and stabilize the tube bundle 55, while also increasing the heat exchange area.
[0053] Multiple rows of tube bundles are installed within the main body 1 via support plates 59, support plates 510, and brackets 511. Two support plates 59 are positioned at the top and bottom of the tube bundle 55, respectively, to support it. The two support plates 510 are fixed to the front and rear wall panels, respectively, above the tube bundle. The front and rear ends of the support plates 59 are fixed to the two support plates 510, respectively. The support plates 59 are fixed longitudinally and horizontally within the main body 1, above the tube bundle. Two brackets 511 are fixed to the front and rear wall panels, respectively, below the tube bundle. The front and rear ends of the support plates 59 are fixed to the two brackets 511, respectively. The support plates 59 are fixed longitudinally and horizontally within the main body 1, below the tube bundle.
[0054] The support plate 59 is provided with semicircular notches 512 arranged at alternating heights corresponding to the straight tubes 56. The straight tubes at the top and bottom of each tube bundle are positioned within the semicircular notches 512. The straight tubes of three adjacent tube bundles form an isosceles triangle, the shape of which is adjusted by the positions of the semicircular notches 512.
[0055] The liquid shutoff tray includes an upper baffle 41, a first spray liquid outlet 43, and a lower collection plate 42. The upper baffle 41 is an isosceles triangle with vertically downward-facing lower edges at both ends. The two lower collection plates 42 are downwardly inclined slanted plates, symmetrically arranged on either side below the upper baffle 41. The two lower collection plates 42 are in an "eight" shape, with vertically upward-facing upper edges at their tops, located within the lower edges. The first spray liquid outlet 43 is located at the bottom of the lower collection plate 42. After washing, the gas hits the upper baffle 41, flows downward along the downward straight-edge section, hits the lower collection plate 42, enters the space between the lower collection plates 42, and then flows downward into the low-temperature water section tube bundle assembly 3. The spray liquid is discharged into the condensate tank through the first spray liquid outlet 43. After separation and replenishment, the spray liquid is sent to the spray liquid valve 68 for recycling.
[0056] In addition to the low-temperature water section and the circulating water section, the primary cooler can also add a heating water section on top of the circulating water section.
[0057] The working principle and working process of this utility model are as follows:
[0058] The coal gas enters the coal gas inlet 7, contacts with the spraying liquid sprayed downward by the anti-blocking spray head 62 of the spraying pipe 61, realizes direct gas-liquid cooling, and the coal gas flows downward, passes through the pipe bundle 55, and is indirectly heat-exchanged with the circulating water in the pipe bundle, and meanwhile the spraying liquid is also sprayed to the outer wall of the pipe bundle, which on one hand cleans the impurities such as tar outside the heat exchange pipe, and on the other hand the spraying liquid is heat-exchanged with the circulating water outside the pipe bundle, and the coal gas is washed by the spraying liquid, which also plays a direct cooling role.
[0059] The reinforcing plates 58 are arranged between the heat exchange pipes of the pipe bundle, the reinforcing plates 58 play a reinforcing role and also play a heat exchange role, and the heat exchange area of the primary cooler is reduced.
[0060] The coal gas flows downward, is indirectly heat-exchanged with the low-temperature water in the pipe bundle, and meanwhile the spraying liquid is also sprayed to the outer wall of the pipe bundle, which on one hand cleans the impurities such as naphthalene outside the heat exchange pipe, and on the other hand the spraying liquid is heat-exchanged with the low-temperature water outside the pipe bundle, and the coal gas is washed by the spraying liquid, which also plays a direct cooling role. The reinforcing plates 58 are arranged between the heat exchange pipes of the pipe bundle, the reinforcing plates 58 play a reinforcing role and also play a heat exchange role, and the heat exchange area of the primary cooler is reduced. The spraying liquid is collected to the bottom of the primary cooler, is discharged to the condensate tank through the second spraying liquid outlet 103, is separated and supplemented with spraying liquid, and is sent to the spraying liquid valve 68 for recycling. The cooled coal gas with a temperature of about 21-22 DEG C enters the electric tar precipitator for next purification.
[0061] The spraying liquid is directly contacted with the coal gas, direct cooling and indirect cooling between the heat exchange pipes are adopted, the cooling effect is improved, the heat exchange area is reduced, the spraying pipe adopts a cleaning structure, and stable operation of the primary cooler is ensured. The pipe bundle of the heat exchanger adopts straight pipe sections and elbows which are welded, the reinforcing plates 58 are arranged between the straight pipe sections, which on one hand increases the strength, and on the other hand increases the heat exchange area, reduces the heat exchange pipe area, and reduces the total height of the primary cooler. The heat exchange pipes of the original primary cooler are welded with pipe plates, there is a pipe box outside, the pipe plate is relatively thick, the outer shell of the primary cooler of the utility model can meet the strength requirement, the shell thickness is relatively thin, and the pipe box is not needed, and the cost is low. The heat exchange pipes of the existing primary cooler are welded with the pipe plate, and there are many leakage points, and the maintenance is difficult. The pipe bundle of the utility model is detected after being welded, and the pressure is easy to be pressed, the connection points with the shell of the primary cooler are few, and the maintenance is convenient.
[0062] The above description is only part of the specific implementation methods of the present invention, and the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and the utility model concept of the present invention, should be covered by the protection scope of the present invention.
Claims
1. A primary cooler, characterized in that: It includes the main body, gas outlet, low-temperature water section tube bundle assembly, low-temperature water section spray assembly, liquid cut-off plate, circulating water section tube bundle assembly, circulating water section spray assembly and gas inlet; The body is arranged vertically, the gas outlet is fixedly connected to the bottom of the body, and the gas inlet is fixedly connected to the top of the body; The low-temperature water section tube bundle assembly, the low-temperature water section spray assembly, the liquid cut-off plate, the circulating water section tube bundle assembly, and the circulating water section spray assembly are installed in the main body from bottom to top.
2. A primary cooler according to claim 1, characterized in that: The circulating water section spray assembly has the same structure as the low-temperature water section spray assembly, and both include a spray pipe. The spray pipe is provided with a plurality of downward spray heads, and the spray pipe is connected to the cleaning medium pipeline.
3. A primary cooler according to claim 2, characterized in that: It also includes a first mounting tube, a second mounting tube, and a third mounting tube. The second mounting tube and the third mounting tube are fixedly connected to the side wall of the main body. Both ends of the spraying tube are installed in the first mounting tube and the second mounting tube. The first mounting tube and the third mounting tube are connected by a flange, and the spraying tube and the second mounting tube are connected by a flange.
4. A primary cooler according to claim 2, characterized in that: A cleaning medium valve is provided on the cleaning medium pipeline, and a spraying liquid valve is provided at the end of the spraying pipe.
5. A primary cooler according to claim 1, characterized in that: The low-temperature water section tube bundle assembly has the same structure as the circulating water section tube bundle assembly, both comprising multiple rows of tube bundles, which are equally spaced, parallel to each other, and arranged alternately in height. Each row of tube bundles twists and turns many times, and its shape is like a snake, with a straight tube in the middle and curved tubes at both ends.
6. A primary cooler according to claim 5, characterized in that: The two ends of the tube bundle of the low-temperature water section tube bundle assembly are respectively connected to the low-temperature water inlet and the low-temperature water outlet through connecting pipes; the two ends of the tube bundle of the circulating water section tube bundle assembly are respectively connected to the circulating water inlet and the circulating water outlet through connecting pipes; the tube bundle and the connecting pipe are threadedly connected.
7. A primary cooler according to claim 5, characterized in that: It also includes a reinforcing plate, which is fixed between the upper and lower straight tubes of each row of tube bundles.
8. The primary cooler according to claim 5, characterized in that: It also includes support plates, which are arranged at the top and bottom ends of the tube bundle to support the tube bundle. The support plates are provided with arc-shaped notches corresponding to the straight tubes. The straight tubes at the top and bottom ends of each column of the tube bundle are placed in the arc-shaped notches; the straight tubes of the tube bundles in three adjacent columns form a triangle, and the shape of the triangle is adjusted by the position of the arc-shaped notches.
9. The primary cooler according to claim 1, characterized in that: The liquid-cutting plate includes an upper baffle, a first spray liquid outlet and a lower collecting plate; the upper baffle is an isosceles triangle, and the two bottom ends are provided with lower edges pointing vertically downward; the two lower collecting plates are downwardly inclined inclined plates, symmetrically arranged on both sides below the upper baffle, and the top ends are provided with upper edges pointing vertically upward, and the upper edges are located inside the lower edges; the first spray liquid outlet is located at the bottom end of the lower collecting plate.
10. The primary cooler according to claim 1, characterized in that: A second spray liquid outlet is provided at the bottom of the body, and the second spray liquid outlet is connected to the condensate tank pipeline.