Plate heat exchanger with function of improving mounting precision

Abstract

The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger with a function of improving installation accuracy, which comprises a bottom plate. A mounting mechanism is arranged on the bottom plate, the mounting mechanism comprises mounting rods, the mounting rods are symmetrically arranged on one side of the bottom plate, heat exchange pieces are connected to the mounting rods in a sliding mode, mounting blocks are connected to the mounting rods in a sliding mode, and supporting pads are connected to the inner sides of the mounting blocks. According to the heat exchange plate mounting and fixing device, the heat exchange plates can be pre-fastened in the mounting and fixing process of the heat exchange plates through mutual cooperation of the mounting mechanism and the positioning mechanism, so that the stability of the stacked heat exchange plates is improved, and the situation that the heat exchange plates are loosened due to elasticity generated by extrusion deformation of the heat exchange plates is avoided; and the arranged metal gaskets can be matched with the buffer pads, so that the mounting pressure of the heat exchange pieces can be observed in the mounting process of the mounting plate through the mounting nuts, and high-precision mounting operation of the heat exchange pieces is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger with the function of improving installation accuracy. 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. Because different corrugated plates are inverted, complex flow channels are formed, so that the fluid flows in a rotating three-dimensional manner in the flow channels between the corrugated plates, and turbulence can be generated at a lower Reynolds number, so the heat transfer coefficient is high. As an important auxiliary part of the plate heat exchanger, the main purpose of the sealing strip is to prevent the leakage of the fluid when it flows between the plates, and it is subject to certain pressure restrictions, generally not exceeding 1Mpa. However, at present, the installation of heat exchange plates is mostly done by manual direct assembly to the corresponding brackets. There is no unified measurement standard, which is easy to cause assembly deviations and affect its heat exchange efficiency.

[0003] The utility model patent with the publication number CN 215114153 U discloses a heat exchange plate fixing device for a plate heat exchanger, in which a first clamping plate and a second clamping plate are provided for fixing the heat exchange plate, the upper ends of the first clamping plate and the second clamping plate are fixedly connected by a first bracket, the lower ends of the first clamping plate and the second clamping plate are fixedly connected by a second bracket, the outer shell of the first bracket and the second bracket is provided with an I-shaped clamping plate slidably connected thereto, a locking mechanism for locking the heat exchange plate is provided between the I-shaped clamping plate and the second clamping plate, a pressure dividing block is fixedly connected to the left side of the I-shaped clamping plate, a threaded rod is provided on the left side of the pressure dividing block that passes through the first clamping plate and is threadedly connected thereto, and a pre-clamping mechanism for clamping the heat exchange plate is provided between the threaded rod and the pressure dividing block. The relative position between each heat exchange plate can be observed intuitively, the installation accuracy is increased, and the heat exchange efficiency of the plate heat exchanger is improved.

[0004] However, there are still some shortcomings in the above scheme. In the above scheme, an additional fixing device is required to install the heat exchanger to achieve a high-precision installation effect. When installing the heat exchanger, not only additional space is required to install and fix the fixing device, but also extra time is required to operate the fixing device, which affects the installation efficiency of the heat exchanger. In view of this, we propose a plate heat exchanger with a function of improving installation accuracy. Utility Model Content

[0005] The purpose of the utility model is to provide a plate heat exchanger with the function of improving installation accuracy, which solves the problem in the prior art that the installation of heat exchange plates requires additional auxiliary equipment, affecting the installation efficiency of the heat exchange plates.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A plate heat exchanger with a function of improving installation accuracy, comprising a bottom plate;

[0008] The base plate is provided with a mounting mechanism, which includes a mounting rod symmetrically arranged on one side of the base plate, a heat exchange plate slidably connected to the mounting rod, a mounting block slidably connected to the mounting rod, and a support pad connected to the inner side of the mounting block.

[0009] Preferably, a positioning mechanism is provided on the base plate, and the positioning mechanism includes a positioning rod, the positioning rod is fixedly connected to the side of the base plate, the side of the mounting block is rotatably connected to a positioning block, and the positioning rod is provided with a positioning groove corresponding to the positioning block.

[0010] Preferably, a driving gear is rotatably connected to a side surface of the mounting block, the driving gear is fixedly connected to the positioning block, a driving rack is meshingly connected to a side surface of the driving gear, and the driving rack is fixedly connected to the inner side of the positioning rod.

[0011] Preferably, magnets are fixedly connected to the side surfaces of the positioning rod and the positioning block, the corresponding surfaces of the magnets have opposite polarities, and the positions of the magnets correspond to each other.

[0012] Preferably, a transmission rack is fixedly connected to the side of the support pad, the transmission rack is meshed with a driving gear, the driving gear is a residual gear structure, and the end of the support pad is an arc structure.

[0013] Preferably, a thread is formed at the end of the mounting rod, one end of the mounting rod away from the base plate is slidably connected to the mounting plate, and the end of the mounting rod is meshingly connected to a mounting nut.

[0014] Preferably, a metal gasket and a buffer pad are sleeved on the outer side of the mounting rod, and the metal gasket and the buffer pad are movably connected between the mounting plate and the mounting nut.

[0015] By means of the above technical solution, the utility model provides a plate heat exchanger with the function of improving installation accuracy. It has at least the following beneficial effects:

[0016] (1) The utility model can pre-tighten the heat exchanger plates during the installation and fixation process by cooperating between the installation mechanism and the positioning mechanism, thereby improving the stability of the stacked heat exchanger plates and avoiding the looseness of the heat exchanger plates caused by the elasticity generated by the extrusion deformation.

[0017] (2) The metal gasket provided in the utility model can cooperate with the buffer pad, so that the installation pressure of the heat exchanger can be observed during the installation of the mounting nut on the mounting plate. The buffer pad is used to buffer the space between the mounting nut and the mounting plate, so the force exerted on the buffer pad is the installation pressure on the heat exchanger. At the same time, the buffer pad will deform when squeezed. The metal gasket can be provided with a scale to display the degree of deformation. In combination with the deformation coefficient of the buffer pad, high-precision installation operation of the heat exchanger can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0019] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 It is an enlarged schematic diagram of point A in the utility model;

[0022] Figure 4 It is a schematic diagram of the positioning mechanism structure of the utility model.

[0023] In the figure: 1. base plate; 2. mounting mechanism; 201. mounting rod; 202. heat exchange plate; 203. mounting block; 204. support pad; 3. positioning mechanism; 301. positioning block; 302. positioning rod; 303. positioning groove; 304. driving gear; 305. driving rack; 306. magnet; 307. transmission rack; 4. thread; 5. mounting plate; 6. mounting nut; 7. metal gasket; 8. buffer pad. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] A plate heat exchanger with a function of improving installation accuracy, such as Figure 1-Figure 4As shown, it includes a base plate 1; a mounting mechanism 2 is provided on the base plate 1, and the mounting mechanism 2 includes a mounting rod 201, and the mounting rod 201 is symmetrically arranged on one side of the base plate 1. A heat exchange plate 202 is slidably connected to the mounting rod 201, and a mounting block 203 is slidably connected to the mounting rod 201. The inner side of the mounting block 203 is connected to a support pad 204. The mounting mechanism 2 can install the heat exchange plate 202 so that the heat exchange plate 202 is installed and fixed between the mounting rods 201. The mounting block 203 structure and the support pad 204 cooperate with each other to support the heat exchange plate 202 to prevent the heat exchange plate 202 from deviating during the installation process. A positioning mechanism 3 is provided on the base plate 1, and the positioning mechanism 3 includes a positioning rod 302, and the positioning rod 302 is fixedly connected to the side of the base plate 1. The side of the mounting block 203 is rotatably connected with a positioning block 301, and a positioning groove 303 corresponding to the positioning block 301 is provided on the positioning rod 302. The positioning mechanism 3 can position the heat exchanger 202 during the installation of the heat exchanger 202. The positioning block 301 can support the mounting block 203 so that the mounting block 203 is fixed on the side of the positioning groove 303, so that the stacked heat exchanger 202 are close to each other. At the same time, the positioning block 301 can switch between the positioning grooves 303, so as to perform positioning operations on different numbers of heat exchanger 202. The side of the mounting block 203 is rotatably connected with a driving gear 304, and the driving gear 304 is fixedly connected to the positioning block 301. The side of the driving gear 304 is meshed with a driving rack 305. The driving rack 305 is fixedly connected to the inner side of the positioning rod 302, and the driving gear 304 structure can cooperate with the driving rack 305, so that the positioning block 301 can be switched between different positioning grooves 303 by driving the driving rack 305 while moving, so as to fix different numbers of heat exchange plates 202 after the heat exchange plates 202 are installed. A transmission rack 307 is fixedly connected to the side of the support pad 204, and the transmission rack 307 and the driving gear 304 are meshed with each other. The driving gear 304 is a residual gear structure, and the end of the support pad 204 is an arc structure. The transmission rack 307 can make the positioning block 301 rotate while the support pad 204 can be retracted, so as to facilitate the increase of the heat exchange plate 202. The driving gear 304 of the residual gear structure can be disengaged from the driving rack 305 while rotating out of the positioning groove 303. When disengaged, the movement of the driving gear 304 is not affected by the driving rack 305, so that it can be switched and adjusted between different positioning grooves 303. The side of the positioning rod 302 and the side of the positioning block 301 are fixedly connected with magnets 306. The corresponding surfaces of the magnets 306 have opposite polarities, and the positions of the magnets 306 correspond to each other. The magnet 306 structure can attract the positioning block 301. When the positioning block 301 is moved out of the positioning groove 303 and the driving gear 304 and the driving rack 305 are disengaged from each other, the positioning block 301 moves away from the bottom plate 1 under the reaction of the stacked heat exchange plates 202.When the positioning block 301 moves to the magnet 306, it rotates towards the magnet 306, so that the driving gear 304 meshes with the driving rack 305 again, and the positioning block 301 rotates into the positioning groove 303 to perform a re-positioning operation on the heat exchange fin 202.

[0027] Embodiment 2

[0028] As Figure 1-Figure 4 As shown, a thread 4 is provided at the end of the mounting rod 201. One end of the mounting rod 201 away from the bottom plate 1 is slidably connected with a mounting plate 5. The end of the mounting rod 201 is meshed and connected with a mounting nut 6. The thread 4 structure can facilitate the installation and fixation of the mounting nut 6 on the mounting plate 5, so that the mounting plate 5 and the bottom plate 1 cooperate with each other to install and position the heat exchange fin 202. A metal gasket 7 and a buffer pad 8 are sleeved on the outer side of the mounting rod 201. The metal gasket 7 and the buffer pad 8 are both movably connected between the mounting plate 5 and the mounting nut 6. The buffer pad 8 can buffer the installation of the mounting nut 6. At the same time, the buffer pad 8 can display the installation force of the heat exchange fin 202 through its own elastic coefficient and compression degree, so that the installation pressure of the heat exchange fin 202 is within the set range. The metal gasket 7 is of a U-shaped structure. The metal gasket 7 can reduce the friction between the mounting nut 6 and the buffer pad 8 during installation. At the same time, a groove corresponding to the structure of the metal gasket 7 is provided on the mounting plate 5. By showing the depth of the metal gasket 7 entering the groove, the compression degree of the buffer pad 8 can be visually displayed.

[0029] When the plate heat exchanger of the utility model has the function of improving installation accuracy, the heat exchanger 202 is sequentially installed between the installation rods 201. The heat exchanger 202 first contacts the support pad 204. The heat exchanger 202 drives the support pad 204 and the installation block 203 upward. The driving gear 304 is driven by the driving rack 305 while moving upward with the installation block 203 and rotates toward the installation block 203. The positioning block 301 is then moved out of the positioning groove 303. The newly installed heat exchanger 20 The end of the arc structure pushes the support pad 204 to move toward the positioning block 301. The positioning block 301 is restricted when it moves to the side of the mounting block 203 and rebounds the support pad 204 toward the inside of the mounting block 203 through its own elasticity. The support pad 204 then supports the new heat exchanger fin 202. At the same time, when the driving gear 304 of the residual gear structure rotates to disengage from the driving rack 305, the mounting block 203 loses the supporting force of the positioning block 301 and moves toward the mounting block 201 under the push of the over-extruded heat exchanger fin 202. When the mounting block 203 moves in the direction away from the bottom plate 1 and the mounting block 203 moves downward, the positioning block 301 moves from the outside of the positioning groove 303 to the groove shoulder of the positioning groove 303. At this time, the positioning block 301 is attracted by the magnet 306 and rotates in the direction of the positioning groove 303, and the driving gear 304 rotates accordingly to mesh with the driving rack 305. When the mounting block 203 continues to move downward, the driving rack 305 drives the positioning block 301 to rotate again to the inside of the positioning groove 303 and position the heat exchange plate 202, thereby The heat exchanger 202 can be assisted in positioning during the process of installing the heat exchanger 202 one by one to prevent the heat exchanger 202 from becoming loose or offset. At the same time, when the installation operation of all the heat exchanger 202 is completed, the mounting plate 5 can be placed on the outside of the mounting rod 201, and the mounting plate 5 can be installed through the mounting nut 6. By observing the compression state of the buffer pad 8, the installation and fixing force of the heat exchanger 202 can be intuitively judged, thereby improving the installation and fixing effect of the heat exchanger 202 and facilitating the subsequent use of the heat exchanger.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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. A plate heat exchanger with a function of improving installation accuracy, comprising a bottom plate (1), characterized in that: The base plate (1) is provided with a mounting mechanism (2), the mounting mechanism (2) comprising a mounting rod (201), the mounting rod (201) being symmetrically arranged on one side of the base plate (1), a heat exchange plate (202) being slidably connected to the mounting rod (201), a mounting block (203) being slidably connected to the mounting rod (201), and a support pad (204) being connected to the inner side of the mounting block (203).

2. A plate heat exchanger with a function of improving installation accuracy according to claim 1, characterized in that: The bottom plate (1) is provided with a positioning mechanism (3), the positioning mechanism (3) comprising a positioning rod (302), the positioning rod (302) being fixedly connected to the side of the bottom plate (1), the side of the mounting block (203) being rotatably connected to a positioning block (301), and the positioning rod (302) being provided with a positioning groove (303) corresponding to the positioning block (301).

3. The plate heat exchanger with improved installation accuracy according to claim 1, characterized in that: The side of the mounting block (203) is rotatably connected to a driving gear (304), the driving gear (304) is fixedly connected to the positioning block (301), the side of the driving gear (304) is meshingly connected to a driving rack (305), and the driving rack (305) is fixedly connected to the inner side of the positioning rod (302).

4. The plate heat exchanger with improved installation accuracy according to claim 2, characterized in that: The side surfaces of the positioning rod (302) and the side surfaces of the positioning block (301) are both fixedly connected with magnets (306); the corresponding surfaces of the magnets (306) have opposite polarities, and the positions of the magnets (306) correspond to each other.

5. The plate heat exchanger with improved installation accuracy according to claim 3, characterized in that: A transmission rack (307) is fixedly connected to the side of the support pad (204), the transmission rack (307) and the driving gear (304) are meshed with each other, the driving gear (304) is a residual gear structure, and the end of the support pad (204) is an arc-shaped structure.

6. The plate heat exchanger with improved installation accuracy according to claim 1, characterized in that: The end of the mounting rod (201) is provided with a thread (4); the end of the mounting rod (201) away from the base plate (1) is slidably connected to a mounting plate (5); and the end of the mounting rod (201) is meshingly connected to a mounting nut (6).

7. The plate heat exchanger with improved installation accuracy according to claim 1, characterized in that: A metal gasket (7) and a buffer pad (8) are sleeved on the outside of the mounting rod (201), and the metal gasket (7) and the buffer pad (8) are both movably connected between the mounting plate (5) and the mounting nut (6).

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