A vertical cooler with heat exchange unit convenient to disassemble

Abstract

The present application relates to a kind of vertical cooler of heat exchange unit convenient to disassemble, support is set with transition section between upper heat exchange unit and lower heat exchange unit, the upper end of transition section is detachably connected with the bottom of unit shell of upper heat exchange unit by upper flange, bolt structure, the lower end of transition section is detachably connected with the top of unit shell of lower heat exchange unit by lower flange, bolt structure, support is set with the guide rail corresponding with heat exchange unit, the opposite sides of the unit shell of heat exchange unit are provided with the track cooperation of guiding movement in front and back direction with guide rail, the outlet manifold of upper heat exchange unit is connected with the inlet manifold of lower heat exchange unit by connecting pipe, the upper end of connecting pipe is detachably connected with the outlet manifold of upper heat exchange unit, the lower end of connecting pipe is detachably connected with the inlet manifold of lower heat exchange unit.The present application solves the technical problem that the workload of disassembly and assembly is increased when lower heat exchange unit is maintained in prior art, upper heat exchange unit needs to be disassembled first.

Description

Technical Field

[0001] This invention relates to the field of heat exchange equipment, and more particularly to a vertical alumina cooler with an easily detachable heat exchange unit. Background Technology

[0002] Currently, the cooling equipment for high-temperature alumina materials in alumina calcining furnaces includes horizontal fluidized bed coolers and vertical coolers. Vertical coolers are widely used because they do not require power and rely on the gravity of the material to flow from top to bottom.

[0003] Existing vertical coolers such as Figures 1-2 As shown, it includes a support 5, on which an upper heat exchange unit 1 and a lower heat exchange unit 4 are arranged vertically. Each heat exchange unit includes a unit shell 2 and a heat exchange tube 3 disposed in the unit shell. The unit shells of two adjacent heat exchange units are fixed together by shell flanges and bolts.

[0004] The outer side of the unit shell of the upper heat exchange unit is provided with a first manifold 2 connected to the water outlet end of the heat exchange tube in the upper heat exchange unit, and the outer side of the unit shell of the lower heat exchange unit is provided with a second manifold 3 connected to the water inlet end of the heat exchange tube in the lower heat exchange unit. The ends of the first manifold and the second manifold are connected by a connecting pipe.

[0005] The uppermost heat exchange unit has a material inlet at the top of its housing, and the lowermost heat exchange unit has a material outlet at the bottom of its housing. During use, cooling water flows sequentially through the heat exchange tubes of each heat exchange unit. The alumina powder that needs to be cooled enters the uppermost heat exchange unit through the material inlet, and then, by gravity, slides down from top to bottom across the surface of the heat exchange tube to the material outlet, thus achieving cooling of the material.

[0006] The problem with the existing vertical cooler is that during use, each heat exchange unit may malfunction and require repair or replacement. When the lower heat exchange unit needs repair or replacement, the existing technology requires the upper heat exchange unit to be removed first before the lower heat exchange unit can be disassembled. During installation, all heat exchange units need to be installed from bottom to top, which involves a large amount of disassembly and assembly work, increasing the product's maintenance cycle and repair costs. Summary of the Invention

[0007] The purpose of this invention is to provide a vertical cooler with an easy-to-disassemble heat exchange unit, in order to solve the technical problem in the prior art that when the lower heat exchange unit is repaired, the upper heat exchange unit needs to be removed first, which increases the workload of disassembly and assembly.

[0008] The technical solution of the vertical cooler in this invention is as follows:

[0009] A vertical cooler with easily detachable heat exchange units includes a support frame and at least two heat exchange units arranged sequentially in a vertical direction. Two adjacent heat exchange units are defined as an upper heat exchange unit and a lower heat exchange unit. Each heat exchange unit includes a unit housing and heat exchange tubes disposed within the unit housing. The unit housing is provided with an inlet manifold connected to the inlet end of the heat exchange tubes and an outlet manifold connected to the outlet end of the heat exchange tubes. A transition section is provided on the support frame between the upper and lower heat exchange units. The upper end of the transition section is connected to the unit housing of the upper heat exchange unit via an upper flange and bolt structure. The bottom is detachably connected. The lower end of the transition section is detachably connected to the top of the unit shell of the lower heat exchange unit through a lower flange and bolt structure. The bracket is equipped with guide rails corresponding to the heat exchange units. The opposite sides of the unit shell of the heat exchange unit are equipped with rail mating parts that cooperate with the guide rails to guide movement in the front and rear direction. The water outlet manifold of the upper heat exchange unit and the water inlet manifold of the lower heat exchange unit are connected by a connecting pipe. The upper end of the connecting pipe is detachably connected to the water outlet manifold of the upper heat exchange unit, and the lower end of the connecting pipe is detachably connected to the water inlet manifold of the lower heat exchange unit.

[0010] Furthermore, the guide rail includes a left guide rail and a right guide rail located on the left and right sides of the corresponding heat exchange unit. The left guide rail is fixed to the left vertical wall of the bracket, and the right guide rail is fixed to the right vertical wall of the bracket. The track mating part includes a left roller located on the left side of the corresponding heat exchange unit that rolls into contact with the left guide rail, and a right roller located on the right side of the corresponding heat exchange unit that rolls into contact with the right guide rail.

[0011] Furthermore, the front ends of the left and right guide rails protrude from the front side of the bracket.

[0012] Furthermore, the upper end of the connecting pipe is detachably connected to the outlet manifold of the upper heat exchange unit via a flange connection structure, and the lower end of the connecting pipe is detachably connected to the inlet manifold of the lower heat exchange unit via a flange connection structure.

[0013] Furthermore, the transition joint is a rubber hose or a corrugated pipe that can be adjusted in the vertical direction.

[0014] Furthermore, the transition section includes an intermediate sleeve fixed to the bracket. An upper sleeve is mounted on the upper end of the intermediate sleeve in a vertical direction. The upper sleeve is connected to the bottom of the unit housing of the upper heat exchange unit through the upper flange and bolt structure. A lower sleeve is mounted on the lower end of the intermediate sleeve in a vertical direction. The lower sleeve is connected to the top of the unit housing of the lower heat exchange unit through the lower flange and bolt structure.

[0015] Furthermore, an upper spring is provided between the middle sleeve and the upper sleeve, and the upper spring is a compression spring.

[0016] Furthermore, a lower spring is provided between the middle sleeve and the lower sleeve, and the lower spring is a tension spring.

[0017] The beneficial effects of this application are as follows: In this invention, adjacent heat exchange units are connected by transition sections, and each heat exchange unit is supported on the bracket by a track mating part and a guide rail. When the lower heat exchange unit needs to be repaired or replaced, the connection between the connecting pipe and the water inlet manifold of the lower heat exchange unit is removed, the flange bolt structure at both ends of the lower heat exchange unit is removed, and the lower heat exchange unit can be pushed to the outside of the bracket in the front-back direction. Then, the lower heat exchange unit is lifted away with the help of hoisting equipment. After the lower heat exchange unit is repaired, the lower heat exchange unit is hoisted to the corresponding guide rail, the lower heat exchange unit is pushed to the lower side of the corresponding transition section, the connecting pipe is connected, and the lower heat exchange unit is connected to the transition section. This completes the replacement of the lower heat exchange unit without disassembling the upper heat exchange unit, thus reducing the workload of disassembly and assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a vertical cooler in the background art of this invention;

[0019] Figure 2 for Figure 1 Top view of the lower middle heat exchange unit;

[0020] Figure 3 This is a schematic diagram of the vertical cooler in this invention;

[0021] Figure 4 yes Figure 3 Side view;

[0022] Figure 5 yes Figure 4 Enlarged view of point A in the image;

[0023] Figure 6 This is a schematic diagram showing the cooperation between the transition section and the upper and lower heat exchange units in this invention.

[0024] In the diagram: 1. Upper heat exchange unit; 2. First manifold; 3. Second manifold; 4. Lower heat exchange unit; 5. Bracket; 6. Right side roller; 7. Right side guide rail; 8. Left side guide rail; 9. Left side roller; 10. Outlet manifold; 11. Inlet manifold; 12. Transition section; 13. Transition section mounting arm; 14. Connecting pipe; 15. Lifting lug; 16. Intermediate sleeve; 17. Upper sleeve; 18. Lower sleeve; 19. Upper spring; 20. Lower spring; 21. Upper flange plate; 22. Lower flange plate; 23. Unit housing of the upper heat exchange unit; 24. Unit housing of the lower heat exchange unit; 25. Upper support ring; 26. Lower support ring; 27. Limiting block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the 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 invention without inventive effort are within the scope of protection of the invention.

[0027] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0029] A specific embodiment of a vertical cooler with an easily detachable heat exchange unit according to the present invention is as follows: Figures 3-6 As shown,

[0030] The support includes a bracket 5 and at least two heat exchange units arranged sequentially in the vertical direction. In this embodiment, there are three heat exchange units. The bracket 5 includes four columns arranged around the heat exchange units. The four columns are referred to as the first column, the second column, the third column, and the fourth column in a clockwise direction. The first column and the second column are connected by a connecting cross arm. The second column and the third column are connected by a connecting cross arm. The third column and the fourth column are connected by a connecting cross arm. There is no connecting cross arm between the first column and the fourth column. Therefore, the entire bracket 5 has a C-shaped structure with the opening facing forward.

[0031] The first column, the second column, and the connecting crossarm between them constitute the left side wall of the support 5, and the third column, the fourth column, and the connecting crossarm between them constitute the right side wall of the support 5.

[0032] Two adjacent heat exchange units are defined as upper heat exchange unit 1 and lower heat exchange unit 4. Each heat exchange unit includes a unit shell and a heat exchange tube disposed in the unit shell. The unit shell is provided with an inlet manifold 11 connected to the inlet end of the heat exchange tube and an outlet manifold 10 connected to the outlet end of the heat exchange tube.

[0033] In the figure, item 23 represents the housing of the upper heat exchange unit, and item 24 represents the housing of the lower heat exchange unit. The outlet manifold 10 of the upper heat exchange unit 1 needs to be connected to the inlet manifold 11 of the lower heat exchange unit 4.

[0034] In this embodiment, a transition section 12 is provided on the support 5 between the upper heat exchange unit 1 and the lower heat exchange unit 4. The transition section 12 includes an intermediate sleeve 16 fixed on the support 5. An upper sleeve 17 is mounted on the upper end of the intermediate sleeve 16 in a vertical direction, and a lower sleeve 18 is mounted on the lower end of the intermediate sleeve 16 in a vertical direction. An upper spring 19, which is a compression spring, is provided between the intermediate sleeve 16 and the upper sleeve 17; a lower spring 20, which is a tension spring, is provided between the intermediate sleeve 16 and the lower sleeve 18.

[0035] The intermediate sleeve 16 is fixed to the inner wall of the bracket 5 via the transition joint mounting arm 13.

[0036] The upper end of the transition section 12 is detachably connected to the bottom of the unit housing 23 of the upper heat exchange unit via an upper flange and bolt structure, and the lower end of the transition section 12 is detachably connected to the top of the unit housing 24 of the lower heat exchange unit via a lower flange and bolt structure. The flange and bolt structure is a conventional connection structure. For example, the upper flange and bolt structure includes an upper flange plate 21 located at the upper end of the upper sleeve 17 and a mating flange located at the bottom of the unit housing 23 of the upper heat exchange unit. The upper flange plate 21 and the mating flange are detachably connected by bolts. The lower flange and bolt structure includes a lower flange plate 22 located at the lower end of the lower sleeve 18 and a mating flange located at the top of the unit housing 24 of the lower heat exchange unit. The lower flange plate 22 and the mating flange are detachably connected by bolts, which will not be described in detail here.

[0037] The bracket 5 is provided with a guide rail corresponding to the heat exchange unit. The guide rail extends in the front-to-back direction. The left and right sides of the unit shell of the heat exchange unit are provided with rail mating parts that cooperate with the guide rail in the front-to-back direction. The water outlet manifold 10 of the upper heat exchange unit 1 and the water inlet manifold 11 of the lower heat exchange unit 4 are connected by a connecting pipe 14. The upper end of the connecting pipe 14 is detachably connected to the water outlet manifold 10 of the upper heat exchange unit 1, and the lower end of the connecting pipe 14 is detachably connected to the water inlet manifold 11 of the lower heat exchange unit 4.

[0038] In this embodiment, the upper end of the connecting pipe 14 is detachably connected to the outlet manifold 10 of the upper heat exchange unit 1 via a flange connection structure, and the lower end of the connecting pipe 14 is detachably connected to the inlet manifold 11 of the lower heat exchange unit 4 via a flange connection structure.

[0039] The guide rails include a left guide rail 8 and a right guide rail 7 located on the left and right sides of the corresponding heat exchange unit. The left guide rail 8 is fixed to the left vertical wall of the support 5, and the right guide rail 7 is fixed to the right vertical wall of the support 5. The track mating part includes a left roller 9 located on the left side of the corresponding heat exchange unit and in rolling contact with the left guide rail 8. The track mating part also includes a right roller 6 located on the right side of the corresponding heat exchange unit and in rolling contact with the right guide rail 7.

[0040] The front ends of the left guide rail 8 and the right guide rail 7 protrude from the front side of the bracket 5. The front ends of the left guide rail 8 and the right guide rail 7 are provided with limit blocks 27. The limit blocks 27 are used to cooperate with the corresponding heat exchange unit to limit the forward movement limit of the heat exchange unit and prevent the heat exchange unit from falling off the corresponding guide rail when it moves forward.

[0041] In the figure, 25 represents the upper support ring fixed to the outer periphery of the intermediate sleeve 16, and the upper spring 19 connects the upper sleeve 17 and the upper support ring 25; 26 represents the lower support ring fixed to the outer periphery of the intermediate sleeve 16, and the lower spring 20 connects the lower support ring 26 and the lower sleeve 18. A lifting lug 15 is also provided on the top of the heat exchange unit housing for easy hoisting operations.

[0042] When using:

[0043] Adjacent heat exchange units are connected by transition sections 12. Each heat exchange unit is also supported on the bracket 5 via track mating parts (left roller 9, right roller 6) and guide rails (left guide rail 8, right guide rail 7). When the lower heat exchange unit 4 needs maintenance or replacement, the flange connection between the connecting pipe 14 and the inlet manifold 11 of the lower heat exchange unit 4 is removed, and the flange bolts at both ends of the lower heat exchange unit 4 are removed. For the lower flange bolt structure of the lower heat exchange unit 4, the upper sleeve 17 of the lower transition section 12 naturally retracts under its own weight and the action of the upper spring 19, causing the upper flange plate 21 to detach from the bottom flange of the unit shell 24 of the lower heat exchange unit. For the upper flange bolt structure of the lower heat exchange unit 4, the lower sleeve 18 of the upper transition section 12 naturally retracts under the tension of the lower spring 20, causing the lower flange plate 22 to detach from the top flange of the unit shell 24 of the lower heat exchange unit. The flange is detached, allowing the heat exchange unit to be pushed from the rear to the front guide rail to the outside of the bracket 5. Then, the lower heat exchange unit 4 is lifted off using the lifting lug 15 with the help of the hoisting equipment. After the maintenance of the lower heat exchange unit 4 is completed, it is hoisted onto the corresponding guide rails (left guide rail 8, right guide rail 7). Under the action of the upper spring 19 and the lower spring 20, the distance between the lower sleeve 18 and the upper sleeve 17 of the upper transition section 12 is greater than the overall height of the lower heat exchange unit 4, allowing it to be smoothly pushed between the upper and lower transition sections 12. During the connection process, the spring force is overcome to move the lower sleeve 18 of the upper transition section 12 downward and the upper sleeve 17 of the lower transition section 12 upward. After aligning the flange, the bolts are tightened, and then the flanges at both ends of the connecting pipe 14 are connected, thus completing the replacement of the lower heat exchange unit 4. The entire process does not require disassembly and assembly of the upper heat exchange unit 1, significantly reducing the workload of disassembly and assembly, shortening the maintenance cycle, and reducing maintenance costs.

[0044] In other embodiments of the present invention, the transition section may not be a telescopic structure consisting of a middle sleeve, an upper sleeve, and a lower sleeve. For example, the transition section may be a rubber hose or a corrugated pipe that can be telescopically adjusted in the vertical direction to adjust the vertical distance between the transition section and the corresponding heat exchange unit, thereby facilitating the movement of the heat exchange unit in and out.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A vertical cooler with easily detachable heat exchange units, comprising a support frame and at least two heat exchange units arranged sequentially in a vertical direction, wherein two adjacent heat exchange units are defined as an upper heat exchange unit and a lower heat exchange unit, each heat exchange unit comprising a unit housing and a heat exchange tube disposed within the unit housing, the unit housing being provided with an inlet manifold connected to the water inlet end of the heat exchange tube and an outlet manifold connected to the water outlet end of the heat exchange tube, characterized in that: A transition section is provided on the support between the upper heat exchange unit and the lower heat exchange unit. The upper end of the transition section is detachably connected to the bottom of the unit shell of the upper heat exchange unit through an upper flange and bolt structure, and the lower end of the transition section is detachably connected to the top of the unit shell of the lower heat exchange unit through a lower flange and bolt structure. The support is provided with guide rails corresponding to the heat exchange units. The opposite sides of the unit shell of the heat exchange unit are provided with rail mating parts that cooperate with the guide rails to guide movement in the front and back direction. The water outlet manifold of the upper heat exchange unit and the water inlet manifold of the lower heat exchange unit are connected by a connecting pipe. The upper end of the connecting pipe is detachably connected to the water outlet manifold of the upper heat exchange unit, and the lower end of the connecting pipe is detachably connected to the water inlet manifold of the lower heat exchange unit.

2. The vertical cooler according to claim 1, characterized in that: The guide rail includes a left guide rail and a right guide rail located on the left and right sides of the corresponding heat exchange unit. The left guide rail is fixed to the left vertical wall of the bracket, and the right guide rail is fixed to the right vertical wall of the bracket. The track mating part includes a left roller located on the left side of the corresponding heat exchange unit that rolls into contact with the left guide rail, and a right roller located on the right side of the corresponding heat exchange unit that rolls into contact with the right guide rail.

3. The vertical cooler according to claim 2, characterized in that: The front ends of the left and right guide rails protrude from the front of the bracket.

4. The vertical cooler according to claim 1, characterized in that: The upper end of the connecting pipe is detachably connected to the outlet manifold of the upper heat exchange unit via a flange connection structure, and the lower end of the connecting pipe is detachably connected to the inlet manifold of the lower heat exchange unit via a flange connection structure.

5. The vertical cooler according to any one of claims 1 to 4, characterized in that: The transition joint is a rubber hose or a corrugated pipe that can be adjusted in the vertical direction.

6. The vertical cooler according to any one of claims 1 to 4, characterized in that: The transition section includes an intermediate sleeve fixed to a bracket. An upper sleeve is mounted on the upper end of the intermediate sleeve in a vertical direction. The upper sleeve is connected to the bottom of the unit housing of the upper heat exchange unit through the upper flange and bolt structure. A lower sleeve is mounted on the lower end of the intermediate sleeve in a vertical direction. The lower sleeve is connected to the top of the unit housing of the lower heat exchange unit through the lower flange and bolt structure.

7. The vertical cooler according to claim 6, characterized in that: An upper spring is provided between the middle sleeve and the upper sleeve. The upper spring is a compression spring.

8. The vertical cooler according to claim 6, characterized in that: A lower spring, which is a tension spring, is installed between the middle sleeve and the lower sleeve.

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