Full-countercurrent plate heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a full countercurrent plate heat exchanger which comprises a base, a first end plate and a supporting plate are fixedly connected to the upper surface of the base, two positioning columns are fixedly connected to the opposite faces of the first end plate and the supporting plate, and heat exchange plates are installed on the surfaces of the positioning columns. Second end plates are slidably connected to the surfaces of the positioning columns, and electric push rods are fixedly connected to the side faces of the supporting plates. According to the full-countercurrent plate type heat exchanger, after a heat exchange plate is installed on two positioning columns, an electric push rod is started, the electric push rod pushes a second end plate to move, the heat exchange plate can be clamped and fixed in cooperation with a first end plate, when the second end plate moves, the cambered surface of a cambered surface insertion block is stressed, the cambered surface insertion block pushes a sliding block to be contained in a mounting box, and the heat exchange plate is fixed. And when the second end plate moves to the slot, the elastic force of the first spring pushes the cambered surface insertion block to be inserted into the slot, so that the position of the second end plate is conveniently fixed, and the fixing is more convenient compared with a screw and nut fixing mode.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and more specifically to a full countercurrent plate heat exchanger. Background Art

[0002] The plate heat exchanger is composed of stamped concave-convex stainless steel plates. The concave-convex lines between the two adjacent plates are 180 degrees relative to each other, so the concave-convex ridges between the two plates of the plate heat exchanger form staggered contact points. After the contact points are combined by vacuum welding, the high-pressure resistant staggered flow structure of the plate heat exchanger is formed. These staggered flow structures cause the cold and hot fluids in the plate heat exchanger to produce strong turbulence to achieve a high heat exchange effect. In order to improve the heat exchange effect, the existing plate heat exchanger will use countercurrent to exchange heat, that is, the flow direction of the cold zone liquid is opposite to the flow direction of the steam or liquid to be cooled.

[0003] In the installation of existing plate heat exchangers, most of them are fixed by two end plates, and the end plates are connected by screws and nuts. However, this connection method is inconvenient when disassembling and assembling the heat exchange plate, and after the heat exchange plate is installed, at least four nuts need to be installed, which is time-consuming. Therefore, we propose a full countercurrent plate heat exchanger that is easy to disassemble and assemble. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a full countercurrent plate heat exchanger to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a full countercurrent plate heat exchanger comprises a base, wherein the upper surface of the base is respectively fixedly connected with a first end plate and a support plate, two positioning columns are fixedly connected to the opposite surfaces of the first end plate and the support plate, a heat exchange plate is installed on the surface of the positioning column, a second end plate is slidably connected to the surface of the positioning column, an electric push rod is fixedly connected to the side of the support plate, a telescopic end of the electric push rod is fixedly connected to the side of the second end plate, a concave block is fixedly connected to the front and back of the first end plate, a mounting shaft is fixedly connected to the inner wall of the concave block, a connecting column is rotatably connected to the surface of the mounting shaft, and the connecting column is slidably mounted on the second end plate through a connecting mechanism;

[0006] The side of the second end plate is fixedly connected to a mounting box, the inner wall of the mounting box is slidably connected to a sliding block, a side of the sliding block close to the connecting column is fixedly connected to an arcuate plug-in block, a side of the sliding block away from the arcuate plug-in block is fixedly connected to a first spring, the end face of the first spring is fixedly connected to the inner wall of the mounting box, a side of the sliding block close to the first spring is rotatably connected to a threaded rod, the end face of the threaded rod is fixedly connected to a T-shaped pull rod, a threaded hole matching the threaded rod is provided on the surface of the mounting box, the T-shaped pull rod is located inside the threaded hole, a slot matching the arcuate plug-in block is provided on the surface of the connecting column, the surface of the arcuate plug-in block overlaps the inner wall of the slot, and a side of the arcuate plug-in block close to the second end plate is arc-shaped.

[0007] A further solution is that the front and back sides of the second end plate are provided with mounting grooves, the surface of the connecting column overlaps the inner wall of the mounting groove, the connecting mechanism includes a concave connecting strip, the concave connecting strip and the inner wall of the mounting groove are provided with arc-shaped sliding grooves, the surface of the connecting column overlaps the inner wall of the arc-shaped sliding groove, the concave connecting strip is provided with a sliding opening on a side away from the second end plate, the inner wall of the sliding opening is slidably connected with an L-shaped plug block, the L-shaped plug block is fixedly connected to the opposite surface of the sliding opening with a second spring, the front and back sides of the second end plate are provided with L-shaped positioning grooves, the surface of the L-shaped plug block overlaps the inner wall of the L-shaped positioning groove, and two L-shaped plug blocks are installed on the single concave connecting strip.

[0008] A further solution is that the spacing between adjacent slots is the same as the thickness of the heat exchange plate.

[0009] Technical effects and advantages of the utility model:

[0010] 1. For the full countercurrent plate heat exchanger, after the heat exchange plate is installed on the two positioning columns, the electric push rod is started, and the electric push rod pushes the second end plate to move, and cooperates with the first end plate to clamp and fix the heat exchange plate, and when the second end plate moves, the arc surface of the arc surface plug block is subjected to force, and the arc surface plug block pushes the sliding block to be retracted into the installation box, and when it moves to the slot, the elastic force of the first spring pushes the arc surface plug block to be inserted into the slot, thereby facilitating the fixation of the position of the second end plate, and pulling and rotating the T-shaped pull rod, the threaded rod is screwed into the threaded hole to fix the position of the sliding block, and the position of the arc surface plug block can be fixed to prevent the arc surface plug block from being inserted into the slot, so that the second end plate is conveniently away from the heat exchange plate, and the heat exchange plate is conveniently removed and repaired, which is more convenient than the method of fixing with screws and nuts.

[0011] 2. In the full counterflow plate heat exchanger, the connecting column can be rotated. When installing the heat exchange plate, the connecting column can be turned out to facilitate the placement of the heat exchange plate. The connecting column is turned into the installation groove, and the L-shaped plug is pressed. The second spring is compressed. At this time, the L-shaped plug is inserted into the L-shaped positioning groove. The L-shaped plug is released. Under the elastic force of the second spring, the L-shaped plug is inserted into the L-shaped positioning groove. The position of the concave connecting strip can be fixed, thereby positioning the connecting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the installation box of the utility model.

[0014] Figure 3 It is a schematic diagram of the side section structure of the concave connecting strip of the utility model.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting column of the utility model.

[0016] The reference numerals in the drawings are: 1 base, 2 first end plate, 3 support plate, 4 positioning column, 5 heat exchange plate, 6 electric push rod, 7 concave block, 8 connecting column, 9 second end plate, 10 installation box, 11 sliding block, 12 arc surface plug block, 13 first spring, 14 threaded rod, 15 T-shaped pull rod, 16 threaded hole, 17 concave connecting strip, 18 L-shaped plug block, 19 second spring. DETAILED DESCRIPTION

[0017] Full counterflow plate heat exchanger, reference Figure 1-4 , including a base 1, the upper surface of the base 1 is fixedly connected with a first end plate 2 and a support plate 3, two positioning columns 4 are fixedly connected to the opposite surfaces of the first end plate 2 and the support plate 3, a heat exchange plate 5 is installed on the surface of the positioning column 4, a second end plate 9 is slidably connected to the surface of the positioning column 4, an electric push rod 6 is fixedly connected to the side of the support plate 3, and the telescopic end of the electric push rod 6 is fixedly connected to the side of the second end plate 9.

[0018] The front and back sides of the first end plate 2 are fixedly connected with concave blocks 7, the inner wall of the concave block 7 is fixedly connected with a mounting shaft, the surface of the mounting shaft is rotatably connected with a connecting column 8, and the connecting column 8 is slidably installed on the second end plate 9 through a connecting mechanism.

[0019] The second end plate 9 is provided with mounting grooves on the front and back sides, the surface of the connecting column 8 overlaps with the inner wall of the mounting groove, the connecting mechanism includes a concave connecting strip 17, the concave connecting strip 17 and the inner wall of the mounting groove are provided with arc-shaped sliding grooves, the surface of the connecting column 8 overlaps with the inner wall of the arc-shaped sliding groove, the concave connecting strip 17 is provided with a sliding opening on the side away from the second end plate 9, the inner wall of the sliding opening is slidably connected with an L-shaped plug 18, and the L-shaped plug 18 is fixedly connected to the opposite surface of the sliding opening with a second spring 19, the second end plate 9 is provided with an L-shaped positioning groove on the front and back sides, the surface of the L-shaped plug 18 overlaps with the inner wall of the L-shaped positioning groove, and two L-shaped plugs 18 are installed on a single concave connecting strip 17.

[0020] The connecting column 8 can be rotated. When installing the heat exchange plate 5, the connecting column 8 can be turned out to facilitate the placement of the heat exchange plate 5. The connecting column 8 is turned into the installation groove, and the L-shaped plug 18 is pressed. The second spring 19 is compressed. At this time, the L-shaped plug 18 is inserted into the L-shaped positioning groove. The L-shaped plug 18 is released. Under the elastic force of the second spring 19, the L-shaped plug 18 is inserted into the L-shaped positioning groove. The position of the concave connecting strip 17 can be fixed, thereby positioning the connecting column 8.

[0021] The side of the second end plate 9 is fixedly connected to a mounting box 10, the inner wall of the mounting box 10 is slidably connected to a sliding block 11, a side of the sliding block 11 close to the connecting column 8 is fixedly connected to a curved plug-in block 12, a side of the sliding block 11 away from the curved plug-in block 12 is fixedly connected to a first spring 13, and the end face of the first spring 13 is fixedly connected to the inner wall of the mounting box 10.

[0022] A threaded rod 14 is rotatably connected to one side of the sliding block 11 close to the first spring 13, and a T-shaped pull rod 15 is fixedly connected to the end face of the threaded rod 14. A threaded hole 16 matching the threaded rod 14 is provided on the surface of the mounting box 10, and the T-shaped pull rod 15 is located inside the threaded hole 16. A slot matching the arc surface plug-in block 12 is provided on the surface of the connecting column 8, and the surface of the arc surface plug-in block 12 overlaps with the inner wall of the slot, and a side of the arc surface plug-in block 12 close to the second end plate 9 is arc-shaped, and the spacing between adjacent slots is the same as the thickness of the heat exchange plate 5.

[0023] After the heat exchange plate 5 is installed on the two positioning columns 4, the electric push rod 6 is started, and the electric push rod 6 pushes the second end plate 9 to move, and cooperates with the first end plate 2 to clamp and fix the heat exchange plate 5, and when the second end plate 9 moves, the arc surface of the arc surface plug block 12 is subjected to force, and the arc surface plug block 12 pushes the sliding block 11 to be received in the installation box 10. When it moves to the slot, the elastic force of the first spring 13 pushes the arc surface plug block 12 to be inserted into the slot, thereby facilitating the fixation of the position of the second end plate 9, and pulling the T-shaped pull rod 15 and rotating it, the threaded rod 14 is screwed into the threaded hole 16 to fix the position of the sliding block 11, and the position of the arc surface plug block 12 can be fixed to prevent the arc surface plug block 12 from being inserted into the slot, so as to facilitate the second end plate 9 to be away from the heat exchange plate 5, and facilitate the removal and maintenance of the heat exchange plate 5, which is more convenient than the method of fixing with screws and nuts.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A full counterflow plate heat exchanger, comprising a base (1), characterized in that: The upper surface of the base (1) is respectively fixedly connected to the first end plate (2) and the support plate (3); the first end plate (2) and the support plate (3) are fixedly connected to the opposite surface thereof with two positioning columns (4); the surface of the positioning columns (4) is mounted with a heat exchange plate (5); the surface of the positioning columns (4) is slidably connected to the second end plate (9); the side of the support plate (3) is fixedly connected to an electric push rod (6); the telescopic end of the electric push rod (6) is fixedly connected to the side of the second end plate (9); the front and back sides of the first end plate (2) are fixedly connected to a concave block (7); the inner wall of the concave block (7) is fixedly connected to a mounting shaft; the surface of the mounting shaft is rotatably connected to a connecting column (8); the connecting column (8) is slidably mounted on the second end plate (9) through a connecting mechanism; The side surface of the second end plate (9) is fixedly connected to a mounting box (10), the inner wall of the mounting box (10) is slidably connected to a sliding block (11), a side of the sliding block (11) close to the connecting column (8) is fixedly connected to an arc-surface plug-in block (12), a side of the sliding block (11) away from the arc-surface plug-in block (12) is fixedly connected to a first spring (13), an end surface of the first spring (13) is fixedly connected to the inner wall of the mounting box (10), and a side of the sliding block (11) close to the first spring (13) is rotatably connected to the mounting box (10). A threaded rod (14) is movably connected, and the end face of the threaded rod (14) is fixedly connected to a T-shaped pull rod (15). A threaded hole (16) matching the threaded rod (14) is provided on the surface of the installation box (10). The T-shaped pull rod (15) is located inside the threaded hole (16). A slot matching the arc surface plug block (12) is provided on the surface of the connecting column (8). The surface of the arc surface plug block (12) overlaps the inner wall of the slot, and a surface of the arc surface plug block (12) close to the second end plate (9) is arc-shaped.

2. The full counterflow plate heat exchanger according to claim 1, characterized in that: The front and back sides of the second end plate (9) are both provided with mounting grooves, and the surface of the connecting column (8) overlaps the inner wall of the mounting groove.

3. The full counterflow plate heat exchanger according to claim 2, characterized in that: The connection mechanism comprises a concave connection strip (17), the concave connection strip (17) and the inner wall of the installation groove are both provided with an arc-shaped sliding groove, and the surface of the connection column (8) overlaps the inner wall of the arc-shaped sliding groove.

4. The full counterflow plate heat exchanger according to claim 3, characterized in that: A sliding opening is provided on a side of the concave connecting strip (17) away from the second end plate (9), and an L-shaped plug block (18) is slidably connected to the inner wall of the sliding opening.

5. The full counterflow plate heat exchanger according to claim 4, characterized in that: The L-shaped plug block (18) is fixedly connected to the surface opposite to the sliding opening with a second spring (19).

6. The full counterflow plate heat exchanger according to claim 5, characterized in that: The front and back sides of the second end plate (9) are both provided with L-shaped positioning grooves, and the surface of the L-shaped insert block (18) overlaps the inner wall of the L-shaped positioning groove.

7. The full counterflow plate heat exchanger according to claim 6, characterized in that: Two L-shaped plug blocks (18) are installed on a single concave connecting strip (17).

8. The full counterflow plate heat exchanger according to claim 1, characterized in that: The spacing between adjacent slots is the same as the thickness of the heat exchange plate (5).

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