Plate heat exchanger of heat exchange station

Abstract

The utility model belongs to the technical field of heat exchangers, and particularly relates to a heat exchange station plate heat exchanger which comprises a fixing plate and an auxiliary plate, a limiting plate driven by a driving device is installed between the fixing plate and the auxiliary plate in a sliding mode, and a plate sheet and a distance control assembly are arranged between the limiting plate and the fixing plate. The distance control assembly comprises a plurality of first connecting long plates and second connecting long plates which are arranged in a scissor-fork mode, the middle positions of the first connecting long plates and the middle positions of the second connecting long plates are connected in a hinged mode through installation pieces, and the installation pieces correspond to the plate pieces respectively and are connected with the plate pieces. The first connecting long plate and the second connecting long plate close to the fixing plate are hinged to the fixing plate through the first connecting short plate and the positioning plate, and the first connecting long plate and the second connecting long plate close to the limiting plate are hinged to the limiting plate through the second connecting short plate. According to the plate sheet cleaning device, the distance between the plate sheets can be conveniently adjusted, then the plate sheets can be conveniently cleaned, the cleaning work of the plate sheets is simple and convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a plate heat exchanger for a heat exchange station. Background Art

[0002] The plate heat exchanger for a heat exchange station is an efficient heat exchange device, mainly used for heat transfer and cooling of fluids. It is composed of multiple flat and parallel plates with a certain interval. Heat transfer occurs between two fluids flowing between the plates, and it has the advantages of a compact structure, high heat transfer efficiency, energy conservation and environmental protection.

[0003] Under the same pressure loss condition, the heat transfer coefficient of the plate heat exchanger is 3 - 5 times higher than that of the tubular heat exchanger, the floor area is one-third of that of the tubular heat exchanger, and the heat recovery rate can be as high as over 90%. However, it has been gradually found that the current plate heat exchanger for a heat exchange station still has the following defects:

[0004] 1) In the plate heat exchanger for a heat exchange station, the plates need to be closely fitted. When cleaning it, the plates need to be disassembled one by one to clean them, and the operation is rather cumbersome.

[0005] 2) When the plates need to be replaced, generally, they are limited by the positioning structures on both sides, and then pushed one by one towards the fixed plate. There is also the problem that the replacement operation is cumbersome and inconvenient. Summary of the Utility Model

[0006] In order to overcome the defects of the above-mentioned prior art pointed out, the inventor of the present utility model has conducted in-depth research and completed the present utility model after a large amount of creative labor.

[0007] Specifically, the technical problem to be solved by the present utility model is: to provide a plate heat exchanger for a heat exchange station to solve the technical problem that in the current plate heat exchanger, the plates need to be closely fitted, and when cleaning it, the plates need to be disassembled one by one to clean them, and the operation is rather cumbersome.

[0008] To solve the above technical problem, the present utility model provides the following technical solution:

[0009] A plate heat exchanger for a heat exchange station includes a fixed plate and an auxiliary plate. The fixed plate and the auxiliary plate are arranged correspondingly. A limiting plate driven by a driving device is slidably installed between the fixed plate and the auxiliary plate along the direction of approaching / leaving the fixed plate. A plurality of plates arranged in sequence are provided between the limiting plate and the fixed plate, and a spacing control component for adjusting the spacing between the plates is further provided between the limiting plate and the fixed plate.

[0010] The spacing control component includes a number of first connecting long plates and second connecting long plates arranged in a scissor-like manner. The middle positions of the first connecting long plates and the second connecting long plates are hinged together by mounting members. The mounting members are respectively arranged corresponding to the plates and connected to the plates. The ends of the first connecting long plates and the second connecting long plates are respectively hinged together by connecting shafts. The ends of the first connecting long plates and the second connecting long plates close to the fixed plate are respectively hinged with first connecting short plates. A positioning plate is arranged between the first connecting short plate and the fixed plate. One end of the positioning plate is hinged to the first connecting short plate, and the other end of the positioning plate is hinged to the fixed plate. The ends of the first connecting long plates and the second connecting long plates close to the limiting plate are respectively hinged with second connecting short plates. The second connecting short plates are hinged to the limiting plate.

[0011] As an improved technical solution, at least two parallel sliding rods are fixedly installed between the fixed plate and the auxiliary plate. The sliding rods are respectively located on both sides of the plate. Sliders are fixedly installed on both sides of the plate. The sliders are slidably sleeved on the sliding rods. The plate is slidably installed between the fixed plate and the auxiliary plate through the sliding rods and the sliders.

[0012] As an improved technical solution, avoiding grooves corresponding to the sliding rods are opened on both sides of the limiting plate. The limiting plate is slidably installed between the fixed plate and the auxiliary plate through the sliding rods and the avoiding grooves;

[0013] The driving device includes an electric push rod fixedly installed on the fixed plate. The end of the piston rod of the electric push rod is connected to the limiting plate.

[0014] As an improved technical solution, the mounting member includes a hinge shaft and a connecting shaft. The first connecting long plate and the second connecting long plate are hinged together by the hinge shaft. The connecting shaft is installed on the hinge shaft. The plates are respectively provided with insertion holes corresponding to the connecting shaft. The bottom of the connecting shaft is inserted into the insertion holes.

[0015] As an improved technical solution, the connecting shaft includes an integrally formed mounting portion, a retaining ring portion, and an insertion portion. The mounting portion and the retaining ring portion are located inside the hinge shaft and are axially movably arranged along the hinge shaft. A compression spring is sleeved on the mounting portion. The two ends of the compression spring respectively abut against the hinge shaft and the retaining ring portion. The insertion portion passes through the bottom end of the hinge shaft and is located outside the hinge shaft, and the insertion portion is adapted to the insertion hole.

[0016] As an improved technical solution, the top of the mounting portion passes through the hinge shaft and extends outside the hinge shaft, and a pull ring is installed on the top of the mounting portion.

[0017] After adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0018] 1. By providing a spacing control component, when the driving device works, the spacing between the plates can be controlled through the spacing control component, so as to facilitate the staff to clean the plates. Furthermore, it can solve the problem that in the prior art, when cleaning the plates, they need to be disassembled one by one, and the overall operation is rather cumbersome.

[0019] 2. By providing a spacing control component and a mounting member, the plates can be conveniently replaced. By driving the plates to fit through the electric push rod, the working intensity of the staff to push the plates one by one towards the fixed plate can be reduced. Furthermore, the installation time can be reduced and the work efficiency can be improved. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the plate heat exchanger of the present utility model in a heat exchange station.

[0022] Figure 2 It is an exploded structural schematic diagram of the fixed plate, plate, limit plate and spacing control component of the present utility model.

[0023] Figure 3 It is a structural schematic diagram of the spacing control component of the present utility model.

[0024] Figure 4 It is an exploded structural schematic diagram of the spacing control component of the present utility model.

[0025] Figure 5 It is a sectional structural schematic diagram of the mounting member of the present utility model.

[0026] Description of the reference numerals:

[0027] 1 - Fixed plate; 2 - Auxiliary plate; 3 - Electric push rod; 4 - Limit plate; 401 - Avoidance groove; 5 - Plate; 501 - Insertion hole; 6 - First connecting long plate; 7 - Second connecting long plate; 8 - Mounting member; 801 - Hinge shaft; 802 - Connecting shaft; 8021 - Mounting part; 8022 - Retaining ring part; 8023 - Insertion part; 803 - Compression spring; 804 - Pull ring; 9 - Connecting shaft; 10 - First connecting short plate; 11 - Positioning plate; 12 - Second connecting short plate; 13 - Slide bar; 14 - Slide block. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0030] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text is to include three scenarios. Taking "A and / or B" as an example, it includes the scenario of A, or the scenario of B, or the scenario where A and B are satisfied simultaneously.

[0031] In addition, the descriptions such as "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] As Figures 1 to 5 collectively shown, this embodiment provides a plate heat exchanger for a heat exchange station, including a fixing plate 1 and an auxiliary plate 2. The fixing plate 1 and the auxiliary plate 2 are correspondingly arranged and are both fixedly installed on the bottom plate. A limiting plate 4 driven by a driving device is slidably installed between the fixing plate 1 and the auxiliary plate 2 along the direction of approaching / leaving the fixing plate 1. A plurality of plate sheets 5 are arranged in sequence between the limiting plate 4 and the fixing plate 1, and a spacing control assembly for adjusting the spacing of the plate sheets 5 is further provided between the limiting plate 4 and the fixing plate 1.

[0033] As Figures 1 to 4As shown together, the spacing control component includes a number of first connecting long plates 6 and second connecting long plates 7 arranged in a scissor-like manner. The second connecting long plate 7 is located below the first connecting long plate 6 on the side close to the plate 5. The middle positions of the first connecting long plate 6 and the second connecting long plate 7 are hinged together by a mounting member 8. The mounting member 8 is correspondingly arranged with the plate 5 and connected to the plate 5. The end parts of the first connecting long plate 6 and the second connecting long plate 7 are respectively hinged together by a connecting shaft. The end parts of the first connecting long plate 6 and the second connecting long plate 7 close to the fixed plate 1 are respectively hinged with first connecting short plates 10. A positioning plate 11 is provided between the first connecting short plate 10 and the fixed plate 1. One end of the positioning plate 11 is hinged to the first connecting short plate 10, and the other end of the positioning plate 11 is hinged to the fixed plate 1. There are two first connecting short plates 10. One ends of the two first connecting short plates 10 are respectively hinged to the end parts of the first connecting long plate 6 and the second connecting long plate 7, and the other ends of the two first connecting short plates 10 are hinged to one end of the positioning plate 11. The two first connecting short plates 10 are in a C shape. The end parts of the first connecting long plate 6 and the second connecting long plate 7 close to the limiting plate 4 are respectively hinged with second connecting short plates 12. The second connecting short plates 12 are hinged to the limiting plate 4. There are two second connecting short plates 12. One ends of the two second connecting short plates 12 are respectively hinged to the end parts of the first connecting long plate 6 and the second connecting long plate 7, and the other ends of the two second connecting short plates 12 are hinged to the limiting plate 4. The two second connecting short plates 12 are in a C shape.

[0034] With the provided spacing control component, the driving device drives the displacement of the limiting plate 4. The limiting plate 4 drives the spacing control component to extend or contract, so that the spacing between adjacent mounting members 8 changes, thereby driving the displacement of the plate 5 and realizing the adjustment of the spacing between the plates 5.

[0035] As Figure 1 and Figure 2 As shown together, to realize the sliding limit of the plate 5 and ensure the smooth sliding displacement of the plate 5, at least two parallel sliding rods 13 are fixedly installed between the fixed plate 1 and the auxiliary plate 2. The sliding rods 13 are respectively located on both sides of the plate 5. Sliders 14 are fixedly installed on both sides of the plate 5. The sliders 14 are slidably sleeved on the sliding rods 13. The plate 5 is slidably installed between the fixed plate 1 and the auxiliary plate 2 through the sliding rods 13 and the sliders 14.

[0036] As Figure 1 shown, in this embodiment, there are two sliding rods 13. The two sliding rods 13 are correspondingly arranged. The two ends of the sliding rods 13 respectively penetrate through the fixed plate 1 and the auxiliary plate 2 and are fastened by mounting bolts.

[0037] As Figure 1 and Figure 2As shown together, in this embodiment, avoidance grooves 401 corresponding to the sliding rods 13 are formed on both sides of the limiting plate 4. The limiting plate 4 is slidably installed between the fixing plate 1 and the auxiliary plate 2 through the sliding rods 13 and the avoidance grooves 401, thereby realizing the smooth sliding of the limiting plate 4.

[0038] As Figure 1 and Figure 2 As shown together, the driving device includes an electric push rod 3 fixedly installed on the fixing plate 1. The piston rod end of the electric push rod 3 is connected to the limiting plate 4. When the electric push rod 3 works, it drives the limiting plate 4 to slide axially along the sliding rod 13. To realize the smooth pushing of the limiting plate 4, the electric push rod 3 can be respectively arranged at the top and bottom of the fixing plate 1, that is, the piston rod ends of the electric push rod 3 are respectively connected to the top and bottom ends of the limiting plate 4.

[0039] As Figures 3 to 5 As shown together, the mounting member 8 includes a hinge shaft 801 and a connecting shaft. The middle positions of the first connecting long plate 6 and the second connecting long plate 7 are hinged together by the hinge shaft 801. The connecting shaft is installed on the hinge shaft 801. The plate pieces 5 are respectively provided with insertion holes 501 corresponding to the connecting shaft. The bottom of the connecting shaft is inserted into the insertion holes 501. Thus, when the first connecting long plate 6 and the second connecting long plate 7 in a scissor-like structure extend or contract, the plate pieces 5 are driven to move through the connecting shaft.

[0040] As Figures 3 to 5 As shown together, the connecting shaft includes an integrally formed mounting portion 8021, a retaining ring portion 8022, and an insertion portion 8023. The mounting portion 8021 and the retaining ring portion 8022 are located inside the hinge shaft 801 and are axially movably arranged along the hinge shaft 801. A compression spring 803 is sleeved on the mounting portion 8021. The two ends of the compression spring 803 respectively abut against the hinge shaft 801 and the retaining ring portion 8022. Under the elastic force of the compression spring 803, the retaining ring portion 8022 abuts against the bottom of the hinge shaft 801 to prevent the connecting shaft from coming out. The bottom end of the hinge shaft 801 has a first through hole. The outer diameter of the retaining ring portion 8022 is greater than the inner diameter of the first through hole. The outer diameter of the insertion portion 8023 is smaller than the inner diameter of the first through hole. The insertion portion 8023 passes through the bottom end of the hinge shaft 801 through the first through hole and is located outside the hinge shaft 801. The insertion portion 8023 is in clearance fit with the first through hole and is adapted to the insertion hole 501. The compression spring 803 is always in a compressed state. Under the elastic force of the compression spring 803, the insertion portion 8023 is inserted into the insertion hole 501 of the plate piece 5. When the connecting shaft is pulled upward axially along the hinge shaft 801, the compression spring 803 is further compressed, and the insertion portion 8023 retracts into the hinge shaft 801, and the insertion portion 8023 disengages from the insertion hole 501 of the plate piece 5, so that the disassembly of the plate piece 5 and the mounting member 8 can be realized, and the disassembly operation is simple and convenient.

[0041] As Figure 5As shown, in this embodiment, limit rings can be provided at both the top and bottom ends of the outer wall of the hinge shaft 801. The first connecting long plate 6 and the second connecting long plate 7 are located between the upper and lower limit rings, which can prevent the first connecting long plate 6 and the second connecting long plate 7 from disengaging from the hinge shaft 801, and effectively realize the hinge installation of the first connecting long plate 6 and the second connecting long plate 7.

[0042] As Figures 3 to 5 As commonly shown, the top end of the hinge shaft 801 has a second through hole. The outer diameter of the installation part 8021 is smaller than the inner diameter of the second through hole. The installation part 8021 is in clearance fit with the second through hole. The top of the installation part 8021 passes through the hinge shaft 801 through the second through hole and extends outside the hinge shaft 801, and a pull ring 804 is installed at the top of the installation part 8021. The provided pull ring 804 facilitates pulling the connecting shaft through the pull ring 804, making the disassembly and assembly operations of the plate 5 more convenient and labor-saving.

[0043] During use, the electric push rod 3 can be started to push the limiting plate 4 towards the auxiliary plate 2. During this process, the limiting plate 4 will drive the pitch control assembly to work, causing multiple groups of the first connecting long plates 6 and the second connecting long plates 7 to move equidistantly, and driving the plate 5 to move equidistantly through the installation member 8 until the appropriate distance is moved between each group of plates 5, then the operation of the electric push rod 3 can be stopped. In this way, it is convenient to clean the plate 5, and further, the problem of cumbersome and inconvenient cleaning of the plate 5 in the prior art can be solved, making the cleaning work of the plate 5 simple, convenient, time-saving and labor-saving.

[0044] When replacing the plate 5, first disconnect the sliding rod 13 from the auxiliary plate 2 through the installation bolt, and cancel the key connection between the electric push rod 3 and the limiting plate 4. Then, pull the pull ring 804 to drive the displacement of the connecting shaft. During this process, the retaining ring portion 8022 moves towards the top of the hinge shaft 801, causing the compression spring 803 to be squeezed and deformed, and the insertion portion 8023 retracts into the hinge shaft 801. In this way, the connection with the plate 5 can be cancelled. Then, directly pull the plate 5 to move it along the surface of the sliding rod 13 through the slider 14 until it is completely disconnected from the sliding rod 13. During installation, the operation is opposite. Similarly, after installation, the electric push rod 3 can be started again to perform a retraction operation until each group of the first connecting long plates 6 and the second connecting long plates 7 are in contact, then the overall installation operation can be completed. Further, the problem of cumbersome and inconvenient installation operation can be solved, making the replacement operation of the plate 5 simple, convenient, efficient and fast.

[0045] It should be understood that the use of these embodiments is only for illustrating the present utility model rather than intending to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A plate heat exchanger for a heat exchange station, characterized in that, It includes a fixed plate and an auxiliary plate. The fixed plate and the auxiliary plate are arranged correspondingly. A limiting plate driven by a driving device is slidably installed between the fixed plate and the auxiliary plate in a direction close to / away from the fixed plate. A number of plate pieces are arranged in sequence between the limiting plate and the fixed plate, and a spacing control component for adjusting the spacing between the plate pieces is also provided between the limiting plate and the fixed plate. The spacing control component includes a number of first connecting long plates and second connecting long plates arranged in a scissor-like manner. The middle positions of the first connecting long plates and the second connecting long plates are hinged together by mounting parts. The mounting parts are arranged corresponding to the plate pieces and connected to the plate pieces respectively. The ends of the first connecting long plates and the second connecting long plates are hinged together by connecting shafts respectively. The ends of the first connecting long plates and the second connecting long plates close to the fixed plate are respectively hinged with first connecting short plates. A positioning plate is provided between the first connecting short plate and the fixed plate. One end of the positioning plate is hinged to the first connecting short plate, and the other end of the positioning plate is hinged to the fixed plate. The ends of the first connecting long plates and the second connecting long plates close to the limiting plate are respectively hinged with second connecting short plates. The second connecting short plates are hinged to the limiting plate.

2. The plate heat exchanger of the heat exchange station according to claim 1, characterized in that, At least two parallel sliding rods are fixedly installed between the fixed plate and the auxiliary plate. The sliding rods are respectively located on both sides of the plate pieces. Sliders are fixedly installed on both sides of the plate pieces. The sliders are slidably sleeved on the sliding rods. The plate pieces are slidably installed between the fixed plate and the auxiliary plate through the sliding rods and the sliders.

3. The plate heat exchanger of the heat exchange station according to claim 2, characterized in that, Avoidance grooves corresponding to the sliding rods are opened on both sides of the limiting plate. The limiting plate is slidably installed between the fixed plate and the auxiliary plate through the sliding rods and the avoidance grooves. The driving device includes an electric push rod fixedly installed on the fixed plate. The end of the piston rod of the electric push rod is connected to the limiting plate.

4. The plate heat exchanger of the heat exchange station according to claim 1, characterized in that, The mounting part includes a hinge shaft and a connecting shaft. The first connecting long plate and the second connecting long plate are hinged together by the hinge shaft. The connecting shaft is installed on the hinge shaft. The plate pieces are respectively provided with insertion holes corresponding to the connecting shaft. The bottom of the connecting shaft is inserted into the insertion holes.

5. The plate heat exchanger of the heat exchange station according to claim 4, characterized in that, The connecting shaft includes an integrally formed mounting part, a retaining ring part and an insertion part. The mounting part and the retaining ring part are located inside the hinge shaft and are axially movable along the hinge shaft. A compression spring is sleeved on the mounting part. The two ends of the compression spring respectively abut against the hinge shaft and the retaining ring part. The insertion part passes through the bottom end of the hinge shaft and is located outside the hinge shaft, and the insertion part is adapted to the insertion hole.

6. The plate heat exchanger of the heat exchange station according to claim 5, characterized in that, The top of the mounting part passes through the hinge shaft and extends outside the hinge shaft, and a pull ring is installed at the top of the mounting part.

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