Plate heat exchanger

Abstract

The utility model provides a plate heat exchanger, which relates to the technical field of plate heat exchangers and comprises a rear end plate, a front end plate is movably mounted at the front end of the rear end plate, a plurality of plates are mounted between the rear end plate and the front end plate, and first guide plates are mounted at the upper end and the lower end of the front surface of the rear end plate respectively. An auxiliary mechanism is installed between the front end plate and the first guide plate. The handle drives the first rotating shaft to rotate, then the first rotating shaft drives the fourth bevel gear to rotate with the threaded rod as the axis through the third bevel gear, and therefore the fourth bevel gear pushes the front end plate to move front and back through threads. The front end plate can be rapidly matched with the rear end plate to clamp and install the plate, meanwhile, the plate can be rapidly loosened, a user can conveniently and independently extract and replace the plate needing to be replaced through one side of the heat exchanger, the overall replacement efficiency is improved, and the working difficulty of the user is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, and 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, low heat loss, compact and lightweight structure, small footprint, wide application, and long service life. However, since the plate heat exchanger usually adopts the combination of bolts and threaded rods to clamp and position the front and rear plates to achieve the fixation of the plates, this fixing method has some obvious disadvantages. First of all, due to the use of multiple bolts and threaded rods, the two ends of the heat exchanger will be blocked by the threaded rods, resulting in the need to disassemble the entire heat exchanger when a certain plate needs to be replaced. This not only increases the difficulty of maintenance, but also greatly reduces the efficiency of replacement. Therefore, we propose a plate heat exchanger to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a plate heat exchanger, which solves the problem that the plate heat exchanger usually adopts the matching method of bolts and threaded rods to clamp and position the front plate and the rear plate to achieve the fixation of the plate. However, this fixing method has some obvious disadvantages. First, due to the use of multiple bolts and threaded rods, both ends of the heat exchanger will be blocked by the threaded rods, resulting in the need to disassemble the entire heat exchanger when a certain plate needs to be replaced, which not only increases the difficulty of maintenance, but also greatly reduces the efficiency of replacement.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A plate heat exchanger, comprising a rear end plate, a front end plate movably mounted on the front end of the rear end plate, a plurality of plates mounted between the rear end plate and the front end plate, a No. 1 guide plate mounted on the upper and lower ends of the front surface of the rear end plate, the No. 1 guide plate being fitted with the upper and lower sides of the plate, the front end of the No. 1 guide plate being movably penetrated and mounted inside the front end plate, an auxiliary mechanism being mounted between the front end plate and the No. 1 guide plate, a plurality of No. 2 guide plates being mounted on one end of the front surface of the rear end plate, the No. 2 guide plates being fitted with one side of the plate, the No. 2 guide plates being movably penetrated and mounted inside the front end plate, Installed inside the front end plate, the auxiliary mechanism includes a positioning plate, the positioning plate is movably installed at the front end of the front end plate, and the positioning plate and the front end plate are in contact with each other, the No. 1 guide plate is movably installed through the upper and lower ends of the interior of the positioning plate, and the No. 1 rotating shaft is movably installed at the upper and lower ends of the interior of the positioning plate, a handle is movably installed through the middle of the interior of the positioning plate, the handle is connected to the No. 1 rotating shaft, and No. 4 bevel gears are movably installed inside the No. 1 guide plate, and the end of the No. 1 rotating shaft that is away from each other is connected to the No. 4 bevel gears.

[0006] Preferably, a groove is provided inside the positioning plate, a second rotating shaft is movably installed through the middle of the groove, and a handle is installed at the front end of the second rotating shaft.

[0007] Preferably, a No. 2 bevel gear is installed on the outside of the shaft of the No. 2 rotating shaft located inside the groove, and the No. 1 rotating shaft is movably installed at the upper and lower ends inside the groove, and a No. 1 bevel gear is installed at the ends of the No. 1 rotating shaft close to each other, and the No. 1 bevel gears are meshedly connected with the No. 2 bevel gears.

[0008] Preferably, bearing seats are installed at the upper and lower ends of the interior of the groove, and the shaft of the No. 1 rotating shaft is respectively installed through the interior of the bearing seats.

[0009] Preferably, the No. 1 guide plate is provided with a movable groove inside, the No. 4 bevel gears are movably installed inside the movable grooves, threaded rods are fixedly installed inside the movable grooves, the No. 4 bevel gears are movably penetrated by threads and installed on the outside of the rod body of the threaded rod, and the No. 4 bevel gears are in contact with the inner wall of the groove.

[0010] Preferably, a number three bevel gear is mounted on one end of the number one rotating shaft that is away from each other, and the number three bevel gear is meshedly connected with the number four bevel gear.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) In the utility model, the handle drives the No. 1 rotating shaft to rotate, and then the No. 1 rotating shaft drives the No. 4 bevel gear to rotate around the threaded rod through the No. 3 bevel gear, so that the No. 4 bevel gear pushes the front end plate to move forward and backward through the thread, so that the front end plate can quickly cooperate with the rear end plate to clamp and install the plate, and can also quickly release the plate, so that the user can extract and replace the plate to be replaced separately through one side of the heat exchanger, thereby improving the overall replacement efficiency and reducing the user's work difficulty, making it simpler and more convenient.

[0013] (2) In the present invention, the No. 1 guide plate is used to clamp and position the upper and lower sides of the plate, and then cooperates with the No. 2 guide plate to limit the fit of the plate to ensure that each plate fits with each other, to avoid the offset between the plates causing water seepage, and to improve the overall sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a plate heat exchanger of the utility model;

[0015] Figure 2 This is a front view structural schematic diagram of a plate heat exchanger of the utility model;

[0016] Figure 3 The utility model is a plate heat exchanger Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0017] Figure 4 The utility model is a plate heat exchanger Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle.

[0018] In the figure: 1. rear end plate; 2. front end plate; 3. plate; 4. guide plate No. 1; 5. guide plate No. 2; 6. auxiliary mechanism; 601. positioning plate; 602. groove; 603. rotating shaft No. 1; 604. bevel gear No. 1; 605. bevel gear No. 2; 606. rotating shaft No. 2; 607. handle; 608. bearing seat; 609. bevel gear No. 3; 610. movable groove; 611. threaded rod; 612. bevel gear No. 4. DETAILED DESCRIPTION

[0019] The following will be combined with 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 of 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.

[0020] like Figures 1 to 4As shown, the embodiment of the utility model proposes a plate heat exchanger, including a rear end plate 1, a front end plate 2 is movably installed at the front end of the rear end plate 1, a plurality of plates 3 are installed between the rear end plate 1 and the front end plate 2, a No. 1 guide plate 4 is respectively installed at the upper and lower ends of the front surface of the rear end plate 1, the No. 1 guide plate 4 is fitted with the upper and lower sides of the plate 3, the front end of the No. 1 guide plate 4 is movably installed through the interior of the front end plate 2, an auxiliary mechanism 6 is installed between the front end plate 2 and the No. 1 guide plate 4, a plurality of No. 2 guide plates 5 are installed at one end of the front surface of the rear end plate 1, the No. 2 guide plate 5 is fitted with one side of the plate 3, and the No. 2 guide plate 5 is movably installed through the front end plate 2. Internally, the auxiliary mechanism 6 includes a positioning plate 601, which is movably installed at the front end of the front end plate 2, and the positioning plate 601 is in contact with the front end plate 2. The No. 1 guide plate 4 is movably installed at the upper and lower ends of the interior of the positioning plate 601, and the No. 1 rotating shaft 603 is movably installed at the upper and lower ends of the interior of the positioning plate 601. A handle 607 is movably installed at the middle of the interior of the positioning plate 601, and the handle 607 is connected to the No. 1 rotating shaft 603. No. 4 bevel gears 612 are movably installed inside the No. 1 guide plate 4, and the ends of the No. 1 rotating shaft 603 that are away from each other are connected to the No. 4 bevel gear 612.

[0021] like Figure 3 and Figure 4 As shown, in another embodiment of the utility model, a groove 602 is provided inside the positioning plate 601, and a second rotating shaft 606 is movably installed in the middle of the inner part of the groove 602, and a handle 607 is installed at the front end of the second rotating shaft 606. The second rotating shaft 606 is located inside the groove 602. The outer side of the shaft is installed with a second bevel gear 605, and the first rotating shaft 603 is movably installed at the upper and lower ends of the inner part of the groove 602. The ends of the first rotating shaft 603 close to each other are respectively installed with a first bevel gear 604, and the first bevel gear 604 is respectively meshed with the second bevel gear 605. The upper and lower ends of the inner part of the groove 602 are respectively installed There is a bearing seat 608, the rod body of the No. 1 rotating shaft 603 is respectively installed through the inside of the bearing seat 608, the inside of the No. 1 guide plate 4 is respectively provided with a movable groove 610, the No. 4 bevel gears 612 are respectively movably installed in the inside of the movable groove 610, and the inside of the movable groove 610 is respectively fixedly installed with a threaded rod 611, the No. 4 bevel gear 612 is movably installed through the thread on the outside of the rod body of the threaded rod 611, the No. 4 bevel gear 612 is fitted with the inner wall of the groove 602, and the No. 3 bevel gears 609 are respectively installed at the ends of the No. 1 rotating shaft 603 away from each other, and the No. 3 bevel gears 609 are respectively meshed and connected with the No. 4 bevel gears 612.

[0022] The user places a plurality of plates 3 between the rear end plate 1 and the front end plate 2, and aligns them through the cooperation of the No. 1 guide plate 4 and the No. 2 guide plate 5. Then the user can rotate the handle 607 to make the handle 607 drive the No. 2 bevel gear 605 to rotate through the No. 2 rotating shaft 606. Then the No. 2 bevel gear 605 cooperates with the No. 1 bevel gear 604 to drive the No. 1 rotating shaft 603 to rotate. Then the No. 1 rotating shaft 603 can drive the No. 4 bevel gear 612 to rotate with the threaded rod 611 as the axis through the No. 3 bevel gear 609, so that the No. 4 bevel gear 612 can rotate through the threaded rod 611 as if The nut generally pushes the positioning plate 601 along the threaded rod 611, so that the positioning plate 601 cooperates with the front end plate 2 and the rear end plate 1 to squeeze and install the plate 3, ensuring that the plates 3 fit tightly together. If a plate 3 needs to be taken out, the handle 607 only needs to be reversed, so that the fourth bevel gear 612 drives the positioning plate 601 to move forward along the threaded rod 611 through the thread, thereby loosening the front end plate 2, the rear end plate 1 and the plate 3. Then, the user can take out and replace the plate 3 separately through the side without the second guide plate 5, which is simpler and more convenient.

[0023] The bearing seat 608 is used to support the first rotating shaft 603 to prevent the first rotating shaft 603 from being offset inside the groove 602 , thereby improving the stability of the first rotating shaft 603 .

[0024] The working principle of a plate heat exchanger:

[0025] When in use, the user first places several plates 3 between the rear end plate 1 and the front end plate 2 respectively, and aligns them through the cooperation of the No. 1 guide plate 4 and the No. 2 guide plate 5, and then the user can rotate the handle 607 to make the handle 607 drive the No. 2 bevel gear 605 to rotate through the No. 2 rotating shaft 606, and then the No. 2 bevel gear 605 cooperates with the No. 1 bevel gear 604 to drive the No. 1 rotating shaft 603 to rotate, and then the No. 1 rotating shaft 603 can drive the No. 4 bevel gear 612 to rotate with the threaded rod 611 as the axis through the No. 3 bevel gear 609, so that the No. 4 bevel gear 612 can rotate through the threaded rod 611. The pattern pushes the positioning plate 601 along the threaded rod 611 like a nut, so that the positioning plate 601 cooperates with the front end plate 2 and the rear end plate 1 to squeeze and install the plate 3, ensuring that the plates 3 fit tightly. If you need to take out a certain plate 3, you only need to control the handle 607 to reverse, and let the fourth bevel gear 612 drive the positioning plate 601 to move forward along the threaded rod 611 through the thread, thereby loosening the front end plate 2, the rear end plate 1 and the plate 3. Then the user can take out and replace the plate 3 separately through the side without the second guide plate 5, which is simpler and more convenient.

[0026] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A plate heat exchanger, comprising a rear end plate (1), characterized in that: The front end of the rear end plate (1) is movably mounted with a front end plate (2), a plurality of plates (3) are mounted between the rear end plate (1) and the front end plate (2), a No. 1 guide plate (4) is mounted at both upper and lower ends of the front surface of the rear end plate (1), the No. 1 guide plate (4) is fitted with the upper and lower sides of the plate (3), the front end of the No. 1 guide plate (4) is movably mounted inside the front end plate (2), an auxiliary mechanism (6) is mounted between the front end plate (2) and the No. 1 guide plate (4), a plurality of No. 2 guide plates (5) are mounted at one end of the front surface of the rear end plate (1), the No. 2 guide plates (5) are fitted with one side of the plate (3), the No. 2 guide plates (5) are movably mounted inside the front end plate (2), the auxiliary mechanism (6) ) comprises a positioning plate (601), the positioning plate (601) is movably installed at the front end of the front end plate (2), and the positioning plate (601) and the front end plate (2) are in contact with each other, the first guide plate (4) is movably installed at the upper and lower ends of the interior of the positioning plate (601), the upper and lower ends of the interior of the positioning plate (601) are movably installed with a first rotating shaft (603), a handle (607) is movably installed in the middle of the interior of the positioning plate (601), the handle (607) is connected to the first rotating shaft (603), the interior of the first guide plate (4) is movably installed with a fourth bevel gear (612), and the end of the first rotating shaft (603) that is away from each other is connected to the fourth bevel gear (612).

2. A plate heat exchanger according to claim 1, characterized in that: The interior of the positioning plate (601) is provided with a groove (602), and a second rotating shaft (606) is movably installed in the middle of the interior of the groove (602), and a handle (607) is installed at the front end of the second rotating shaft (606).

3. A plate heat exchanger according to claim 2, characterized in that: The second rotating shaft (606) is located in the groove (602) and is provided with a second bevel gear (605) on the outside of the shaft. The first rotating shaft (603) is movably provided at the upper and lower ends of the groove (602). The first bevel gear (604) is provided at the ends of the first rotating shaft (603) close to each other. The first bevel gear (604) is meshedly connected with the second bevel gear (605).

4. A plate heat exchanger according to claim 3, characterized in that: The inner ends of the groove (602) are respectively provided with bearing seats (608), and the shaft of the first rotating shaft (603) is respectively installed through the inner parts of the bearing seats (608).

5. A plate heat exchanger according to claim 4, characterized in that: The first guide plate (4) is provided with a movable groove (610) inside, the fourth bevel gear (612) is movably installed inside the movable groove (610), a threaded rod (611) is fixedly installed inside the movable groove (610), the fourth bevel gear (612) is movably penetrated and installed on the outside of the rod body of the threaded rod (611) through a thread, and the fourth bevel gear (612) is in contact with the inner wall of the groove (602).

6. A plate heat exchanger according to claim 5, characterized in that: A number three bevel gear (609) is installed at one end of the number one rotating shaft (603) that is away from each other, and the number three bevel gear (609) is meshedly connected with the number four bevel gear (612).

Images