Evaporator tube plate with protection structure

Abstract

The utility model discloses an evaporator tube plate with a protection structure, which comprises a tank body and a tube plate structure arranged in the tank body, a step groove capable of accommodating the tube plate structure is arranged in the tank body, a support ring is arranged in the step groove in a sliding manner, the support ring is elastically connected with the tank body through a spring, and the protection structure is arranged in the support ring. A clamping groove matched with the top pressure of the supporting ring to clamp and fix the tube plate structure is formed in the step groove, and the tube plate structure comprises a plurality of fan-shaped single plates capable of being spliced into a round cake shape and a plurality of outer ring fixing pieces for fixing the outer rings of every two adjacent fan-shaped single plates; according to the utility model, a split type installation mode is adopted, a plurality of fan-shaped single plates are assembled in sequence, and then the outer ring and the inner ring are fixed by the outer ring fixing piece and the inner ring fixing piece, so that compared with the prior art, the fan-shaped single plates have obvious advantages, and the service life of the fan-shaped single plates is prolonged. The problems that in the prior art, the overall structure of a tube plate is inconvenient to transport, take and place, and the whole tube plate needs to be replaced when hole sites are abraded are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to evaporators, and specifically relates to an evaporator tube plate with a protection structure. Background Art

[0002] Tube sheet is a circular steel plate with holes slightly larger than the outer diameter of the tube. It is a circular steel plate that plays the role of fixing the tube and sealing the medium in the evaporative heat exchanger. It is a kind of accessory that plays such a role by inserting the tube into it and welding it to fix it.

[0003] After searching, the announcement number CN214971793U discloses an evaporator tube sheet with a protective structure, including a tank body, a tube sheet fixedly installed on the inner wall of the tank body, a sealing outer ring arranged on the outer surface of one end of the tube sheet, four bayonet pins arranged on the outer side of the sealing outer ring, a sealing edge fixedly installed on the outer side of one end of the sealing outer ring, four sliding pins arranged on one end of the inner wall of the tank body, a groove arranged on one side of one end of the sliding pin, a support ring at one end of the sliding pin movably connected to the inner wall of the tank body, a locking groove arranged on the outer surface of one end of the support ring, a sealing ring arranged on the outer side of the support ring, and a support spring fixedly installed on the outer surface of the other end of the support ring. The device can protect the tube sheet by setting a tube sheet protective structure and simplifying the installation steps of the tube sheet, and can achieve a protective effect on the tube sheet through the cooperation of the sealing outer ring and the sealing edge.

[0004] However, the above technology still has the following problems: the above evaporator tube sheet structure is a whole circular steel plate structure. On the one hand, since the tube sheet needs to be close to the diameter of the inner wall of the tank body, the size of the tube sheet is relatively large. Because of its material, the weight is relatively large, so it is not convenient to transport and take and put. On the other hand, when the holes on the tube sheet are worn, the whole tube sheet needs to be replaced, resulting in material waste and increased equipment costs. Utility Model Content

[0005] The utility model aims to provide an evaporator tube sheet with a protective structure to solve the problems in the above background technology that the overall structure of the tube sheet is inconvenient to transport and take and place, and the entire tube sheet needs to be replaced when the holes are worn.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an evaporator tube sheet with a protective structure, comprising a tank body and a tube sheet structure installed in the tank body, the tank body being provided with a step groove capable of accommodating the tube sheet structure, a support ring being slidably arranged in the step groove, the support ring being elastically connected to the tank body through a spring, a clamping groove being provided in the step groove for clamping the tube sheet structure under the top pressure of the support ring, the tube sheet structure comprising a plurality of fan-shaped single plates that can be assembled into a circular pancake shape, a plurality of outer ring fixing members fixing the outer circles of two adjacent fan-shaped single plates, and an inner ring fixing member fixing the inner circles of all the assembled circular pancake-shaped fan-shaped single plates.

[0007] Preferably, the fan-shaped single plate is provided with a pipe hole for the evaporator pipe to pass through, the top of the outer diameter end of the fan-shaped single plate is provided with an embedding groove on both sides, and the top of the inner diameter end of the fan-shaped single plate is provided with a fan-shaped groove, and the fan-shaped grooves on all the fan-shaped single plates can accommodate the inner ring fixing part after being spliced ​​together.

[0008] Preferably, the outer ring fixing member comprises an arc-shaped frame, and a corner plate is fixed on the inner ring wall of the arc-shaped frame, and the engaging grooves on two adjacent fan-shaped single plates can accommodate the corner plate after being spliced ​​together.

[0009] Preferably, a first screw hole is formed at the engaging groove, and a hole corresponding to the first screw hole is formed on the angle plate.

[0010] Preferably, both ends of the outer ring wall of the arc-shaped frame are provided with protruding feet, and the engaging groove is J-shaped, and the protruding feet on two adjacent fan-shaped single plates can be adapted to the engaging groove after being spliced ​​together.

[0011] Preferably, the inner ring fixing member comprises an outer ring frame, a column is arranged at the center of the outer ring frame, and a plurality of radially distributed bracket plates are fixed between the outer ring frame and the column.

[0012] Preferably, a second screw hole is provided at the fan-shaped groove, and a hole corresponding to the second screw hole is provided on the outer ring frame.

[0013] Preferably, arc-shaped grooves are provided at the inner diameter end corners of the sector-shaped single plates, and the arc-shaped grooves on all the sector-shaped single plates can accommodate the column after being spliced ​​together.

[0014] Compared with the prior art, the utility model provides an evaporator tube plate with a protective structure, which has the following beneficial effects:

[0015] 1. The utility model adopts a split installation method to assemble multiple fan-shaped single plates in sequence, and then fix the outer ring and the inner ring by the outer ring fixing member and the inner ring fixing member. Compared with the prior art, the utility model has obvious advantages and solves the problems in the prior art that the overall structure of the tube plate is inconvenient to transport and take and place, and the entire tube plate needs to be replaced when the hole position is worn;

[0016] 2. The utility model passes bolts through the outer ring frame and the hole position where the second screw hole is located and fixes it, and assembles each sector-shaped single plate in sequence outside the inner ring fixing piece to form a round pancake shape, and then fits the arc frame to the outer circular edge of the round pancake-shaped sector-shaped single plate, and places the angle plate on the inner ring surface of the arc frame in the fitting groove of two adjacent sector-shaped single plates, and passes bolts through the angle plate and the hole position where the first screw hole is located and fixes it, which is convenient for on-site installation;

[0017] 3. The utility model uses a plurality of fan-shaped single plates to assemble to form the main frame structure of the tube plate. When a certain tube hole is worn, it can be replaced separately, thus saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the tube sheet structure and the tank body after installation proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the tube sheet structure and the tank body before installation proposed by the utility model;

[0021] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0022] Figure 4 This is a schematic diagram of the tube sheet structure proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the fan-shaped single board structure proposed by the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the outer ring fixing member proposed in the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the inner ring fixing member proposed by the utility model;

[0026] In the figure: 1. tank body; 2. tube sheet structure; 21. fan-shaped single plate; 211. tube hole; 212. fitting groove; 213. first screw hole; 214. fan-shaped groove; 215. arc groove; 216. second screw hole; 22. outer ring fixing piece; 221. arc frame; 222. angle plate; 223. protruding foot; 23. inner ring fixing piece; 231. outer ring frame; 232. column; 233. bracket plate; 3. step groove; 4. support ring; 5. spring; 6. fitting groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 3 The utility model provides a technical solution: an evaporator tube sheet with a protective structure, comprising a tank body 1 and a tube sheet structure 2 installed in the tank body 1, a step groove 3 capable of accommodating the tube sheet structure 2 is provided in the tank body 1, a support ring 4 is slidably provided in the step groove 3, the support ring 4 is sealed with the tank body 1 through a sealing ring, the support ring 4 is elastically connected to the tank body 1 through a spring 5, and a clamping groove 6 is provided in the step groove 3 for clamping the tube sheet structure 2 under the top pressure of the support ring 4, such as Figure 4 As shown, the tube sheet structure 2 includes a plurality of sector-shaped single plates 21 that can be assembled into a circular pancake shape, a plurality of outer ring fixing members 22 that fix the outer rings of two adjacent sector-shaped single plates 21, and an inner ring fixing member 23 that fixes the inner rings of all the assembled circular pancake-shaped sector-shaped single plates 21.

[0029] See also Figure 4 and Figure 5 A tube hole 211 for the evaporator pipe to pass through is opened on the fan-shaped single plate 21, fitting grooves 212 are provided on both sides of the top of the outer diameter end of the fan-shaped single plate 21, and a fan-shaped groove 214 is provided on the top of the inner diameter end of the fan-shaped single plate 21. The fan-shaped grooves 214 on all the fan-shaped single plates 21 can accommodate the inner ring fixing part 23 after being spliced.

[0030] See also Figure 4 and Figure 6 The outer ring fixing member 22 includes an arc-shaped frame 221, and an angle plate 222 is fixed on the inner ring wall of the arc-shaped frame 221. The fitting grooves 212 on the two adjacent fan-shaped single plates 21 can accommodate the angle plate 222 after being assembled, and the fitting grooves 212 are provided with a first screw hole 213, and the angle plate 222 is provided with a hole position corresponding to the first screw hole 213. By placing the angle plate 222 on the inner ring surface of the arc-shaped frame 221 in the fitting grooves 212 of the two adjacent fan-shaped single plates 21, and fixing them by passing bolts through the angle plate 222 and the hole position where the first screw hole 213 is located, a structure as shown in the following can be formed. Figure 4 The tube sheet structure 2 is shown.

[0031] Both ends of the outer ring wall of the arc-shaped frame 221 are provided with protruding feet 223, and the engaging groove 6 is J-shaped. The protruding feet 223 on the two adjacent fan-shaped single plates 21 can be adapted to the engaging groove 6 after being spliced, and the protruding feet 223 of the assembled tube sheet structure 2 can be placed in the step groove 3 facing the engaging groove 6. The arc-shaped frame 221 pushes the support ring 4 to compress the spring 5, and then the protruding feet 223 rotate at the bottom of the engaging groove 6, and the elastic force of the spring 5 makes the tube sheet structure 2 snap-fit ​​and installed in the tank body 1.

[0032] See also Figure 4 and Figure 7 The inner ring fixing part 23 includes an outer ring frame 231, a column 232 is arranged at the center of the outer ring frame 231, and a plurality of radially distributed bracket plates 233 are fixed between the outer ring frame 231 and the column 232. A second screw hole 216 is provided at the fan-shaped groove 214, and a hole position corresponding to the second screw hole 216 is provided on the outer ring frame 231. An arc groove 215 is provided at the inner diameter end corner of the fan-shaped single plate 21. The arc grooves 215 on all the fan-shaped single plates 21 can accommodate the column 232 after being assembled. Bolts are passed through the outer ring frame 231 and the holes where the second screw holes 216 are located and fixed, and each fan-shaped single plate 21 is assembled outside the inner ring fixing part 23 in turn to form a round cake shape.

[0033] It should be noted that, in order to consider the sealing performance, the sector-shaped single plate 21 and the contact parts between the sector-shaped single plate 21 and the outer ring fixing member 22 and the inner ring fixing member 23 are all sealed by sealant.

[0034] The working principle and use process of the utility model are as follows: during installation, firstly, bolts are passed through the outer ring frame 231 and the hole position where the second screw hole 216 is located and fixed, and each sector-shaped single plate 21 is assembled on the outside of the inner ring fixing member 23 in sequence to form a round cake shape, and then the arc frame 221 is attached to the outer circular edge of the round cake-shaped sector-shaped single plate 21, and the angle plate 222 on the inner ring surface of the arc frame 221 is placed in the fitting groove 212 of two adjacent sector-shaped single plates 21, and bolts are passed through the angle plate 222 and the hole position where the first screw hole 213 is located and fixed, so as to form a round cake shape. Figure 4 The tube sheet structure 2 shown in the figure, then the protruding foot 223 of the assembled tube sheet structure 2 is placed into the step groove 3 facing the locking groove 6, the arc-shaped frame 221 pushes the support ring 4 to compress the spring 5, and then the protruding foot 223 rotates at the bottom of the locking groove 6 through the elastic force of the spring 5 to make the tube sheet structure 2 snap-fit ​​and install in the tank body 1.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An evaporator tube sheet with a protective structure, comprising a tank body (1) and a tube sheet structure (2) installed in the tank body (1), wherein the tank body (1) is provided with a step groove (3) capable of accommodating the tube sheet structure (2), a support ring (4) is slidably arranged in the step groove (3), the support ring (4) is elastically connected to the tank body (1) through a spring (5), and a clamping groove (6) is provided in the step groove (3) for clamping the tube sheet structure (2) under the top pressure of the support ring (4), characterized in that: The tube sheet structure (2) comprises a plurality of sector-shaped single plates (21) that can be assembled into a circular cake shape, a plurality of outer ring fixing members (22) that fix the outer rings of two adjacent sector-shaped single plates (21), and an inner ring fixing member (23) that fixes the inner rings of all the sector-shaped single plates (21) that are assembled into a circular cake shape.

2. The evaporator tube plate with a protective structure according to claim 1, characterized in that: The fan-shaped single plate (21) is provided with a tube hole (211) for the evaporator pipe to pass through, the top of the outer diameter end of the fan-shaped single plate (21) is provided with an engaging groove (212) on both sides, and the top of the inner diameter end of the fan-shaped single plate (21) is provided with a fan-shaped groove (214), and the fan-shaped grooves (214) on all the fan-shaped single plates (21) can accommodate the inner ring fixing part (23) after being spliced.

3. The evaporator tube plate with a protective structure according to claim 2, characterized in that: The outer ring fixing member (22) comprises an arc-shaped frame (221), an angle plate (222) is fixed on the inner ring wall of the arc-shaped frame (221), and the engaging grooves (212) on two adjacent sector-shaped single plates (21) can accommodate the angle plate (222) after being spliced.

4. The evaporator tube plate with a protective structure according to claim 3, characterized in that: The engaging groove (212) is provided with a first screw hole (213), and the angle plate (222) is provided with a hole corresponding to the first screw hole (213).

5. The evaporator tube plate with a protective structure according to claim 3, characterized in that: Both ends of the outer ring wall of the arc-shaped frame (221) are provided with protruding feet (223); the engaging groove (6) is J-shaped; the protruding feet (223) on two adjacent sector-shaped single plates (21) can be adapted to fit into the engaging groove (6) after being assembled.

6. The evaporator tube plate with a protective structure according to claim 2, characterized in that: The inner ring fixing member (23) comprises an outer ring frame (231), a column (232) is arranged at the center of the outer ring frame (231), and a plurality of radially distributed bracket plates (233) are fixed between the outer ring frame (231) and the column (232).

7. The evaporator tube plate with a protective structure according to claim 6, characterized in that: A second screw hole (216) is provided at the fan-shaped groove (214), and a hole position corresponding to the second screw hole (216) is provided on the outer ring frame (231).

8. The evaporator tube plate with a protective structure according to claim 6, characterized in that: An arc groove (215) is provided at an inner diameter end corner of the sector-shaped single plate (21), and the arc grooves (215) on all the sector-shaped single plates (21) can accommodate the column (232) after being assembled.

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