Plate heat exchanger

Abstract

The utility model relates to the field of heat exchangers, in particular to a plate heat exchanger which comprises a fixing plate, a limiting mechanism, a heat exchange plate and a fixing frame. The movable plate is arranged on one side of the fixed plate; the heat exchange plates are mounted between the fixed plate and the movable plate in a linear array manner; the limiting mechanism is arranged at the upper end of the heat exchange plate; the fixed frame is arranged on one side of the movable plate; the fixed plate, the movable plate, the heat exchange plate, the limiting mechanism and the fixed frame are in intermittent fit. According to the plate heat exchanger, the number of the heat exchange plates can be conveniently increased or decreased through the distance-adjustable moving plates, the effect of conveniently adjusting the overall heat exchange effect is achieved, the problem that the heat exchange effect cannot be conveniently adjusted due to the fact that the number of the heat exchange plates of an existing plate heat exchanger cannot be adjusted is solved, and the use portability of the plate heat exchanger can be improved.

Description

Technical Field

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

[0002] A plate heat exchanger is a common heat exchange device used to transfer heat between fluids. It consists of a series of parallel metal plates, usually made of stainless steel or copper. A staggered network of channels is formed between these plates. The working principle of the plate heat exchanger is to introduce two fluids into different ports and make them flow between the plates. Heat is transferred from one fluid to another to achieve the transfer of thermal energy. One of the fluids flows in the odd-numbered channels, while the other fluid flows in the even-numbered channels. In this way, heat can be transferred through the metal plates to achieve heat exchange between the fluids.

[0003] After searching, the patent announcement number is CN204987976U, which discloses a plate heat exchanger. The adjacent plates of the plate heat exchanger are provided with a first sealing ring and a second sealing ring. After the first sealing ring and the second sealing ring are matched, a steam cavity is formed after the relative second sealing ring is matched. Steam enters the steam cavity through the heat source inlet, and seawater enters the seawater cavity through the seawater inlet. After the third sealing ring and the fourth sealing ring are matched, the relative third sealing ring is matched to form a seawater evaporation cavity. The device provided by this scheme uses a plate heat exchanger instead of a tube heat exchanger. The two media in the plate heat exchanger flow in reverse, and the heat exchange efficiency is high. It can achieve an end temperature difference of about 1°C very economically. At this time, the plate length does not need to be very long. Compared with the tube heat exchanger, the volume of the heat exchanger can be effectively reduced, thereby reducing the footprint of the seawater desalination multi-effect evaporation system.

[0004] In the existing technology, although a certain heat exchange effect can be achieved during use, there is a defect: the existing plate heat exchanger cannot adjust the number of heat exchange plates, resulting in the problem that the heat exchange effect cannot be conveniently adjusted, and lacks flexible practicality. In view of this, we propose a plate heat exchanger to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to propose a plate heat exchanger in view of the problems existing in the background technology.

[0006] The technical solution of the utility model: a plate heat exchanger, comprising a fixed plate, a limiting mechanism, a heat exchange plate and a fixing frame, wherein the fixed plate is arranged on one side of the device; the movable plate is arranged on one side of the fixed plate; the heat exchange plate is linearly arrayed and installed between the fixed plate and the movable plate; the limiting mechanism is arranged on the upper end of the heat exchange plate; the fixing frame is arranged on one side of the movable plate; wherein the fixed plate, the movable plate, the heat exchange plate, the limiting mechanism and the fixing frame have an intermittent matching relationship.

[0007] When using a plate heat exchanger in the present solution, the movable plate can move relative to the fixed plate, and stable distance adjustment is guaranteed with the support of the telescopic cylinder and the telescopic rod. After adjusting the distance, the heat exchange plate can be installed in the middle to achieve a convenient adjustment effect on the number of heat exchange plates; the heat exchange plate can be directly inserted from the upper end, snapped into the upper end of the first fixing frame, and then snapped into the second fixing frame to achieve fixation; the fixing frame can fix the position of the movable plate by adjusting the screw, thereby ensuring the stability of the device.

[0008] Preferably, a roller is provided at the lower end of the movable plate, and a base is provided at the lower end of the fixed plate. The roller can facilitate the movement of the movable plate, and the base can increase the stability of the device.

[0009] Preferably, a telescopic cylinder is provided on the outer wall of one side of the fixed plate, a telescopic rod is inserted into the telescopic cylinder, and the other side of the telescopic rod is fixedly connected to one side of the movable plate.

[0010] Preferably, a fixing frame 1 is fixedly mounted on the lower end of the fixing plate, and the movable plate is clamped on the upper end of the fixing frame 1.

[0011] Preferably, the limiting mechanism comprises:

[0012] A second fixing frame is arranged on the upper ends of the fixing plate and the movable plate;

[0013] A screw, mounted on the upper end of the second fixing frame;

[0014] The first card slot is provided on the upper ends of the fixed plate and the movable plate and is adapted to the second fixed frame;

[0015] A threaded hole is provided at a lower end of the slot and is adapted to fit the screw;

[0016] Positioning holes, a linear array is distributed on the upper surface of the second fixing frame. After adjusting the position of the movable plate, the second fixing frame is clamped on the upper end of the movable plate, and then the second fixing frame can be positioned by using screws in conjunction with corresponding positioning holes;

[0017] The second card slot is arranged on the upper end of the heat exchange plate and is matched with the second fixing frame.

[0018] Preferably, the heat exchange plate comprises:

[0019] A through hole 1 is provided on one side of the upper end of the heat exchange plate;

[0020] A second through hole is provided at a lower end of the through hole;

[0021] A third through hole is provided on one side of the second through hole;

[0022] Through hole 4 is provided on one side of the through hole 1. The heat exchange plate in the device is mainly used by alternating between hot and cold plates. The specific use and liquid flow mode are not explained, which is consistent with the operation mode of the common plate heat exchangers on the market.

[0023] The groove is formed at the lower end of the heat exchange plate, and the groove enables the heat exchange plate to be directly clamped on an upper end of the fixing frame.

[0024] Preferably, the fixing frame is located on one side of the movable plate, and its size is adapted to the fixing frame 1. A screw is installed through the upper end of the fixing frame, and a fixing plate is rotatably installed at the lower end of the screw. The fixing plate is pressed and fitted with the upper end of the fixing frame 1, and the position of the fixing frame can be adjusted by rotating the screw.

[0025] Realize the adjustment and fixation of the position of the moving plate.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] 1. The utility model can provide the position of the internal heat exchange plate by using the movable plate whose distance with the fixed plate can be adjusted, so as to facilitate the adjustment of the number of the heat exchange plates to achieve the effect of adjusting the heat exchange.

[0028] Second, based on the first beneficial effect, the screw rod can be used in conjunction with the fixed frame to adjust and fix the position of the movable plate, thereby increasing the stability of the device.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0031] Figure 2 It is a main schematic diagram of the utility model;

[0032] Figure 3 It is a schematic diagram of the heat exchange plate of the utility model;

[0033] Figure 4 For the utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0034] Reference numerals:

[0035] 100, fixed plate; 101, movable plate; 102, roller; 103, telescopic rod; 104, telescopic cylinder;

[0036] 105, base; 106, fixing frame 1; 200, limiting mechanism; 201, fixing frame 2; 202, screw;

[0037] 203, positioning hole; 204, threaded hole; 205, slot 2; 206, slot 1; 300, heat exchange plate; 301, through hole 1; 302, through hole 2; 303, groove; 304, through hole 3; 305, through hole 4; 400, fixing frame; 401, screw; 402, fixing plate. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0041] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Example 1

[0043] See also Figure 1-Figure 4 As shown, this embodiment is a plate heat exchanger, comprising a fixing plate 100, a limiting mechanism 200, a heat exchange plate 300 and a fixing frame, characterized in that:

[0044] A fixing plate 100 is provided on one side of the device;

[0045] The movable plate 101 is arranged on one side of the fixed plate 100. The movable plate 101 can move relative to the fixed plate 100. With the support of the telescopic cylinder 104 and the telescopic rod 103, stable distance adjustment is ensured. After the distance is adjusted, the heat exchange plate 300 can be installed in the middle, so as to achieve a convenient adjustment effect of the number of the heat exchange plates 300.

[0046] The heat exchange plate 300 is installed in a linear array between the fixed plate 100 and the movable plate 101. The heat exchange plate 300 can be directly inserted from the upper end, snapped into the upper end of the fixing frame 1 106, and then snapped into the fixing frame 2 201 to achieve fixation;

[0047] The limiting mechanism 200 is disposed at the upper end of the heat exchange plate 300. The limiting mechanism 200 is a device including a fixing frame for fixing the heat exchange plate 300.

[0048] The fixing frame 400 is arranged on one side of the moving plate 101. The fixing frame 400 can fix the position of the moving plate 101 by adjusting the screw 401, thereby ensuring the stability of the device;

[0049] There is an intermittent matching relationship between the fixed plate 100 , the movable plate 101 , the heat exchange plate 300 , the limiting mechanism 200 and the fixed frame 400 .

[0050] A roller 102 is disposed at the lower end of the movable plate 101 , and a base 105 is disposed at the lower end of the fixed plate 100 . The roller 102 can facilitate the movement of the movable plate 101 , and the base 105 can increase the stability of the device.

[0051] A telescopic cylinder 104 is disposed on an outer wall of one side of the fixed plate 100 , a telescopic rod 103 is inserted into the telescopic cylinder 104 , and the other side of the telescopic rod 103 is fixedly connected to one side of the movable plate 101 .

[0052] A fixing frame 106 is fixedly mounted on the lower end of the fixing plate 100, and the movable plate 101 is clamped on the upper end of the fixing frame 106;

[0053] In this embodiment, the position of the internal heat exchange plates 200 is provided by using a movable plate 101 whose distance from the fixed plate 100 can be adjusted, so that the number of the heat exchange plates 200 can be adjusted conveniently to achieve the effect of adjusting the heat exchange.

[0054] Example 2

[0055] See also Figure 1-Figure 4 As shown, this embodiment is based on the embodiment 1 and further includes: the limiting mechanism 200 includes:

[0056] The second fixing frame 201 is arranged on the upper ends of the fixing plate 100 and the moving plate 101;

[0057] Screw 202, installed on the upper end of the second fixing frame 201;

[0058] The first card slot 206 is provided at the upper end of the fixed plate 100 and the movable plate 101 and is adapted to the second fixed frame 201;

[0059] The threaded hole 204 is provided at the lower end of the slot 1 206 and is adapted to fit the screw 202;

[0060] Positioning holes 203 are linearly arranged on the upper surface of the second fixing frame 201. After the position of the movable plate 101 is adjusted, the second fixing frame 201 is clamped on the upper end of the movable plate 101. Then, the second fixing frame 201 can be positioned by using screws 202 in conjunction with corresponding positioning holes 203.

[0061] The second card slot 205 is provided at the upper end of the heat exchange plate 300 and is matched with the second fixing frame 201 .

[0062] The heat exchange plate 300 comprises:

[0063] A through hole 301 is provided on one side of the upper end of the heat exchange plate 300;

[0064] The second through hole 302 is formed at the lower end of the first through hole 301;

[0065] A third through hole 304 is provided on one side of the second through hole 302;

[0066] The fourth through hole 305 is provided on one side of the first through hole 301. The heat exchange plate 300 in the device is mainly used as a hot plate and a cold plate alternately. The specific use and liquid flow mode are not explained, which is consistent with the operation mode of the common plate heat exchanger on the market.

[0067] The groove 303 is formed at the lower end of the heat exchange plate 300 , and the groove 303 allows the heat exchange plate 300 to be directly clamped on the upper end of the fixing frame 106 .

[0068] The fixing frame 400 is located on one side of the moving plate 101, and its size is adapted to the fixing frame 106. A screw 401 is installed through the upper end of the fixing frame 400, and a fixing plate 402 is rotatably installed at the lower end of the screw 401. The fixing plate 402 is pressed and fitted with the upper end of the fixing frame 106. The position of the fixing frame 400 can be adjusted by rotating the screw 401, so as to adjust and fix the position of the moving plate 101.

[0069] In this embodiment, the screw rod 401 can cooperate with the fixing frame 400 to adjust and fix the position of the movable plate 101, thereby increasing the stability of the device.

Claims

1. A plate heat exchanger, comprising a fixing plate (100), a limiting mechanism (200), a heat exchange plate (300) and a fixing frame, characterized in that: A fixing plate (100) is arranged on one side of the device; A movable plate (101) is arranged on one side of the fixed plate (100); Heat exchange plates (300), linear arrays are installed between the fixed plate (100) and the movable plate (101); The limiting mechanism (200) is arranged at the upper end of the heat exchange plate (300), and the limiting mechanism (200) comprises: A second fixing frame (201), arranged on the upper ends of the fixing plate (100) and the movable plate (101); A screw (202) is installed on the upper end of the second fixing frame (201); A first card slot (206) is provided at the upper ends of the fixed plate (100) and the movable plate (101), and is adapted to fit the second fixed frame (201); A threaded hole (204) is provided at the lower end of the first clamping slot (206) and is adapted to fit the screw (202); Positioning holes (203) are distributed in a linear array on the upper surface of the second fixing frame (201); The second card slot (205) is provided at the upper end of the heat exchange plate (300) and is adapted to fit the second fixing frame (201); The fixed frame (400) is arranged on one side of the movable plate (101).

2. A plate heat exchanger according to claim 1, characterized in that: A roller (102) is provided at the lower end of the movable plate (101), and a base (105) is provided at the lower end of the fixed plate (100).

3. A plate heat exchanger according to claim 1, characterized in that: A telescopic cylinder (104) is provided on the outer wall of one side of the fixed plate (100), a telescopic rod (103) is inserted into the interior of the telescopic cylinder (104), and the other side of the telescopic rod (103) is fixedly connected to one side of the movable plate (101).

4. A plate heat exchanger according to claim 1, characterized in that: A fixing frame 1 (106) is fixedly mounted on the lower end of the fixing plate (100), and the movable plate (101) is clamped on the upper end of the fixing frame 1 (106).

5. The plate heat exchanger according to claim 1, characterized in that: The heat exchange plate (300) comprises: A through hole (301) is provided on one side of the upper end of the heat exchange plate (300); A second through hole (302) is provided at the lower end of the first through hole (301); A third through hole (304), opened on one side of the second through hole (302); A fourth through hole (305) is provided on one side of the first through hole (301); The groove (303) is formed at the lower end of the heat exchange plate (300).

6. A plate heat exchanger according to claim 1, characterized in that: The fixing frame (400) is located on one side of the moving plate (101), a screw rod (401) is installed through the upper end of the fixing frame (400), and a fixing plate (402) is rotatably installed on the lower end of the screw rod (401).

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