Plate heat exchanger

Abstract

The utility model discloses a plate heat exchanger which comprises a bottom plate, a sliding rail is installed in the middle of the upper end of the bottom plate, a two-way threaded rod is installed in the middle of the interior of the sliding rail, a motor is fixed to the position, right opposite to the two-way threaded rod, of one side wall of the sliding rail through a bolt, and two sliding blocks are symmetrically installed on the two-way threaded rod. Wherein one sliding block is connected with a cover plate, and the other sliding block is connected with a fixing plate. The plate type heat exchanger has the advantages that through the design of the motor, the sliding rails, the two-way threaded rods, the sliding blocks, the sliding grooves, the sliding blocks and the guiding telescopic rods, the cover plate on the plate type heat exchanger can be rapidly closed in an electric sliding mode in the using process, and the overall assembling efficiency of the plate type heat exchanger is remarkably improved; the plate heat exchanger can be conveniently and efficiently assembled and used, the cover plate can be rapidly separated during later overhaul and maintenance, and the interior of the plate heat exchanger can be conveniently and efficiently overhauled and maintained.

Description

Technical Field

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

[0002] The plate heat exchanger is a high-efficiency heat exchanger composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. The plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of the tube heat exchanger, the footprint is one-third of that of the tube heat exchanger, and the heat recovery rate can be as high as more than 90%; the types of plate heat exchangers are mainly frame type (detachable) and brazed type, and the plate forms are mainly herringbone corrugated plates, horizontal straight corrugated plates and tumor-shaped plates.

[0003] The current detachable plate heat exchanger is mainly composed of a group of assembled heat exchange plates, a fixing plate installed on one side of the heat exchange plate, and a cover plate installed on the other side of the heat exchange plate. The detachable plate heat exchanger of the above structure mainly relies on the cooperation of studs and nuts to achieve reliable installation of the cover plate on the heat exchange plate during use. Although the studs and nuts can achieve reliable fixation of the cover plate on the plate heat exchanger, the process of screwing the bolts one by one is cumbersome, which makes it inconvenient to efficiently install the cover plate on the plate heat exchanger, resulting in a relatively low overall assembly efficiency of the plate heat exchanger, which is not convenient for efficient assembly and use of the plate heat exchanger, and is also not convenient for rapid disassembly and maintenance of the plate heat exchanger at a later stage. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is to provide a plate heat exchanger which can realize rapid disassembly and assembly of a cover plate by electric sliding, and is convenient for efficient assembly and use of the device and convenient for disassembly and maintenance, in view of the current status of the prior art.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical scheme: the utility model proposes a plate heat exchanger, including a base plate, a slide rail is installed in the middle of the upper end of the base plate, a two-way threaded rod is installed in the middle of the slide rail, a motor is fixed by bolts on one side wall of the slide rail opposite to the two-way threaded rod, two sliding blocks are symmetrically installed on the two-way threaded rod, one of the sliding blocks is connected to a cover plate, and the other sliding block is connected to a fixed plate, two sliding blocks are symmetrically installed on both sides of the cover plate and the bottom end of the fixed plate, a slide groove is provided on the base plate at the matching position with the sliding block, two support plates 2 are symmetrically welded on both sides of the upper end of the fixed plate, two support plates 1 are symmetrically welded on both sides of the upper end of the cover plate, and a guide telescopic rod is installed between the support plate 1 and the support plate 2 on the same side.

[0008] Furthermore, a suspended support plate is fixed to the lower part of one side wall of the fixed plate by bolts, and heat exchange plates assembled together are placed on the upper side of the support plate.

[0009] By adopting the above technical solution, the heat exchange plates are the main structure of the plate heat exchanger for heat exchange, and the heat exchange plates can be reliably placed and used with the help of the support plates.

[0010] Furthermore, an operation panel is installed on one side wall of the cover plate, the operation panel is electrically connected to the motor, and a through hole is reserved on the cover plate for external media to pass through.

[0011] By adopting the above technical solution, the operation panel mainly controls the on and off of the motor by controlling the on and off of the circuit to ensure that the motor is started on demand.

[0012] Furthermore, both ends of the bidirectional threaded rod are rotatably connected to the slide rail, and the bidirectional threaded rod is connected to the motor coupling.

[0013] By adopting the above technical solution, convenient rotation adjustment of the bidirectional threaded rod relative to the slide rail can be achieved.

[0014] Furthermore, the bidirectional threaded rod passes through the sliding block and is threadedly connected to the sliding block, and the cover plate and the fixing plate are both bolted to the corresponding sliding block.

[0015] By adopting the above technical solution, after the bidirectional threaded rod is rotated, the cover plate and the top plate can be synchronously moved under the action of the sliding block, so as to realize the rapid disassembly and assembly of the entire plate heat exchanger.

[0016] Furthermore, the cover plate and the fixing plate are both connected to the corresponding slider bolts, and the slider is slidably connected to the slide groove.

[0017] By adopting the above technical solution, the sliding block and the sliding groove slide in cooperation with each other, thereby ensuring stable movement of the cover plate and the fixing plate.

[0018] Furthermore, the telescopic portion of the guide telescopic rod is connected to the support plate by two bolts, and the fixed portion of the guide telescopic rod is connected to the support plate by one bolt.

[0019] By adopting the above technical solution, the guiding telescopic rod can further avoid the relative deviation between the cover plate and the fixing plate when moving.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In order to solve the problem that the current detachable plate heat exchanger is mainly composed of a group of assembled heat exchange plates, a fixing plate installed on one side of the heat exchange plate and a cover plate installed on the other side of the heat exchange plate, the detachable plate heat exchanger of the above structure mainly relies on the cooperation of studs and nuts to realize the reliable installation of the cover plate on the heat exchange plate during use. Although the studs and nuts can realize the reliable fixation of the cover plate on the plate heat exchanger, the process of screwing the bolts one by one is cumbersome, which makes it inconvenient to efficiently install the cover plate on the plate heat exchanger, making the overall assembly efficiency of the plate heat exchanger relatively low. The utility model uses the design of a motor, a slide rail, a bidirectional threaded rod, a sliding block, a slide groove, a slider and a guide telescopic rod so that the cover plate on the plate heat exchanger can be quickly closed by electric sliding when in use, which not only significantly improves the overall assembly efficiency of the plate heat exchanger and facilitates the efficient assembly and use of the plate heat exchanger, but also enables the cover plate to be quickly separated during later inspection and maintenance, thereby facilitating efficient inspection and maintenance of the inside of the plate heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the plate heat exchanger described in the utility model;

[0024] Figure 2 The plate heat exchanger of the utility model Figure 1 Enlarged view of point A in the middle.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Support plate 2; 2. Guide telescopic rod; 3. Support plate 1; 4. Cover plate; 5. Operation panel; 6. Slider; 7. Slide groove; 8. Motor; 9. Slide rail; 10. Bottom plate; 11. Heat exchange plate; 12. Fixed plate; 13. Sliding block; 14. Bidirectional threaded rod; 15. Support plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] like Figure 1-Figure 2 As shown, the plate heat exchanger in this embodiment includes a bottom plate 10, a slide rail 9 is installed in the middle of the upper end of the bottom plate 10, a bidirectional threaded rod 14 is installed in the middle of the slide rail 9, a motor 8 is fixed by bolts on one side wall of the slide rail 9 opposite to the bidirectional threaded rod 14, two sliding blocks 13 are symmetrically installed on the bidirectional threaded rod 14, one of the sliding blocks 13 is connected to the cover plate 4, and the other sliding block 13 is connected to the fixing plate 12. After the bidirectional threaded rod 14 rotates, the cover plate 4 and the top plate can be synchronously moved under the action of the sliding block 13, so as to realize the plate heat exchanger. The overall quick disassembly and assembly, two sliders 6 are symmetrically installed on both sides of the bottom end of the cover plate 4 and the fixed plate 12, a slide groove 7 is provided on the bottom plate 10 at the position cooperating with the slider 6, two support plates 2 1 are symmetrically welded on both sides of the upper end of the fixed plate 12, two support plates 1 3 are symmetrically welded on both sides of the upper end of the cover plate 4, a guide telescopic rod 2 is installed between the support plate 1 3 and the support plate 2 1 on the same side, the slider 6 slides in cooperation with the slide groove 7, which can ensure the stable movement of the cover plate 4 and the fixed plate 12, and the guide telescopic rod 2 can further avoid the relative displacement of the cover plate 4 and the fixed plate 12 during movement.

[0029] like Figure 1-Figure 2 As shown, in this embodiment, a suspended support plate 15 is fixed to the lower part of one side wall of the fixed plate 12 by bolts, and heat exchange plates 11 assembled with each other are placed on the upper side of the support plate 15. The heat exchange plates 11 are the main structure of the plate heat exchanger for heat exchange, and the support plate 15 can be used to place the heat exchange plates 11 reliably. An operation panel 5 is installed on one side wall of the cover plate 4. The operation panel 5 is electrically connected to the motor 8. A through hole is reserved on the cover plate 4 for the external medium to pass through. The operation panel 5 mainly controls the start and stop of the motor 8 by controlling the on and off of the circuit to ensure that the motor 8 is started on demand.

[0030] like Figure 1-Figure 2As shown, in this embodiment, both ends of the bidirectional threaded rod 14 are rotatably connected to the slide rail 9, and the bidirectional threaded rod 14 is connected to the motor 8 by a coupling, so that the bidirectional threaded rod 14 can be conveniently rotated and adjusted relative to the slide rail 9. The bidirectional threaded rod 14 passes through the sliding block 13 and is threadedly connected to the sliding block 13. The cover plate 4 and the fixed plate 12 are both bolted to the corresponding sliding block 13, and the cover plate 4 and the fixed plate 12 are both bolted to the corresponding sliding block 6. The sliding block 6 is slidably connected to the slide groove 7. The telescopic portion of the guide telescopic rod 2 is bolted to the support plate 2 1, and the fixed portion of the guide telescopic rod 2 is bolted to the support plate 1 3.

[0031] The specific implementation process of this embodiment is as follows: when in use, the plate heat exchanger is first connected to an external power source, and the motor 8 drives the bidirectional threaded rod 14 to rotate, so that the fixed plate 12 and the cover plate 4 can be brought close to each other with the help of the corresponding sliding block 13 while the bidirectional threaded rod 14 rotates, ensuring the rapid closure of the cover plate 4 on the assembled heat exchange plate 11, and then only the reserved holes on the cover plate 4 need to be connected to the external medium guide pipe, so that heat exchange can be achieved when the medium passes through the heat exchange plate 11. When the plate heat exchanger needs to be inspected and maintained at a later stage, it is only necessary to reverse the motor 8 to drive the bidirectional threaded rod 14 to rotate, so that the cover plate 4 can be separated from the fixed plate 12 under the action of the corresponding sliding block 13, so that the inside of the plate heat exchanger can be efficiently inspected and maintained.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Plate heat exchanger, characterized in that: The invention comprises a bottom plate (10), a slide rail (9) is installed at the middle of the upper end of the bottom plate (10), a bidirectional threaded rod (14) is installed in the middle of the inner part of the slide rail (9), a motor (8) is fixed by bolts on a side wall of the slide rail (9) facing the bidirectional threaded rod (14), two sliding blocks (13) are symmetrically installed on the bidirectional threaded rod (14), one of the sliding blocks (13) is connected to a cover plate (4), and the other sliding block (13) is connected to a fixed plate (12), two sliding blocks (6) are symmetrically installed on both sides of the bottom ends of the cover plate (4) and the fixed plate (12), a sliding groove (7) is provided on the bottom plate (10) at the position matching with the sliding block (6), two supporting plates (1) are symmetrically welded on both sides of the upper end of the fixed plate (12), two supporting plates (1) are symmetrically welded on both sides of the upper end of the cover plate (4), and two supporting plates (3) are symmetrically welded on both sides of the upper end of the cover plate (4), and a guiding telescopic rod (2) is installed between the supporting plate (3) and the supporting plate (1) on the same side.

2. The plate heat exchanger according to claim 1, characterized in that: A suspended support plate (15) is also fixed to the lower part of one side wall of the fixed plate (12) by bolts, and heat exchange plates (11) assembled together are placed on the upper side of the support plate (15).

3. The plate heat exchanger according to claim 1, characterized in that: An operating panel (5) is mounted on one side wall of the cover plate (4); the operating panel (5) is electrically connected to the motor (8); and a through hole is reserved on the cover plate (4) for external media to pass through.

4. The plate heat exchanger according to claim 1, characterized in that: Both ends of the bidirectional threaded rod (14) are rotatably connected to the slide rail (9), and the bidirectional threaded rod (14) is connected to the motor (8) coupling.

5. The plate heat exchanger according to claim 1, characterized in that: The bidirectional threaded rod (14) passes through the sliding block (13) and is threadedly connected to the sliding block (13); the cover plate (4) and the fixing plate (12) are both bolted to the corresponding sliding block (13).

6. The plate heat exchanger according to claim 1, characterized in that: The cover plate (4) and the fixing plate (12) are both bolted to the corresponding sliding block (6), and the sliding block (6) is slidably connected to the sliding groove (7).

7. The plate heat exchanger according to claim 1, characterized in that: The telescopic portion of the guide telescopic rod (2) is bolted to the second support plate (1), and the fixed portion of the guide telescopic rod (2) is bolted to the first support plate (3).

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