A plate heat exchanger and disassembly and maintenance method

Abstract

The present invention discloses a plate heat exchanger and a disassembly and maintenance method, wherein a plate heat exchanger includes a box cover, a box side plate and a box bottom plate for dust and pressure prevention, a filter component for filtering debris in a heat exchange material, a heat exchange component for energy transfer between heat exchange materials, and a fixing rod for rapid disassembly and maintenance of a high-temperature heat exchange plate and a low-temperature heat exchange plate. The present invention solves the problem that a traditional plate heat exchanger is easily affected by dust in a mining environment, making it difficult to clean the dust accumulated on the heat exchange plate, and is easily affected by pressure caused by foreign matter in the environment, causing deformation of the heat exchange plate, resulting in a significant reduction in heat exchange efficiency. When performing disassembly and maintenance operations on the heat exchange plate, multiple heat exchange plates need to be disassembled one by one for cleaning. After cleaning, multiple heat exchange plates need to be installed in sequence, and it is difficult to ensure the accuracy of the installation position, resulting in a large amount of manpower and time loss in the disassembly and maintenance of the heat exchange plate.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange, in particular to a plate heat exchanger and a disassembly, assembly and maintenance method. Background Art

[0002] The plate heat exchanger is a new type of high-efficiency heat exchanger made of stacked metal plates with a certain corrugated shape. Its structure includes gaskets, compression plates and frames. The plates are sealed and guided by sealing gaskets to separate the low-temperature and high-temperature fluid channels. The high-temperature medium and the low-temperature medium flow through their respective channels and exchange heat with the separated plates to achieve the temperature required by the user. Each plate has openings at the four corners. After being assembled into a plate bundle, the distribution pipe and the collecting pipe of the fluid are formed. After the heat exchange between the high-temperature medium and the low-temperature medium, they return from their respective collecting pipes for recycling.

[0003] In the working environment of mines, plate heat exchangers are widely used due to their high heat exchange efficiency, low cost, environmental protection and energy saving. However, traditional plate heat exchangers are easily affected by dust in the mining environment, which makes it difficult to clean the dust accumulated on the heat exchange plates. They are also easily affected by the pressure caused by foreign matter in the environment, causing the heat exchange plates to deform, resulting in a significant reduction in heat exchange efficiency. When disassembling and maintaining the heat exchange plates, multiple heat exchange plates need to be disassembled one by one for cleaning. After cleaning, multiple heat exchange plates need to be installed one by one, and it is difficult to ensure the accuracy of the installation position, resulting in a large amount of manpower and time loss in the disassembly and maintenance of the heat exchange plates. Summary of the invention

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: comprising a box, a heat exchange component and a fixing rod, the box comprising a box cover, a box bottom plate, a box side plate and a box panel, the box cover is arranged on the top of the box, the box bottom plate is arranged on the bottom of the box, the box side plate is arranged on the side of the box, the box panel is arranged on the other side of the box, a hinge is arranged between the box cover and the box side plate, the box cover and the box side plate are hinged by the hinge, the sides of the box cover and the box bottom plate are arranged with fixing grooves, the box panel is arranged with a through-hole pipe opening, and the through-hole pipe opening comprises a low-temperature inlet, a low-temperature outlet, a high-temperature inlet and a high-temperature outlet;

[0005] The heat exchange component comprises a plurality of high-temperature heat exchange plates and low-temperature heat exchange plates arranged in sequence, the high-temperature heat exchange plate is provided with a high-temperature connection ear on the upper side and the lower side, the low-temperature heat exchange plate is provided with a low-temperature connection ear on the upper side and the lower side, the high-temperature heat exchange plate and the low-temperature heat exchange plate are provided with through holes corresponding to the positions of the through hole pipe openings arranged on the box panel, a limiting rubber strip is provided on the outer side of the through hole on the right side of the high-temperature heat exchange plate, and a limiting rubber strip is provided on the outer side of the through hole on the left side of the low-temperature heat exchange plate, and the high-temperature heat exchange plate and the low-temperature heat exchange plate are provided with a surrounding rubber strip around the inner side, and the high-temperature heat exchange plate and the low-temperature heat exchange plate are provided with a convex block inside, and the high-temperature heat exchange plate and the low-temperature heat exchange plate are provided with a groove corresponding to the surrounding rubber strip on the back side;

[0006] It also includes a fixing block, which is sleeved on the fixing rod. The fixing rod on one side passes through the high-temperature connecting ear, and the fixing rod on the other side passes through the low-temperature connecting ear. The end of the fixing rod is connected to the fixing groove.

[0007] The fixed rod includes fixed bevel teeth, a spring, a fixed block, a lifting button and a fixed base. One side of the fixed bevel teeth is a plurality of bevel teeth, and the other side of the fixed bevel teeth is a straight rod. The bevel teeth are arranged on the outside of the fixed rod, and the straight rod is arranged on the inside of the fixed rod. A lifting button is arranged at one end of the straight rod, and a spring is connected to the bottom of the straight rod. A fixed base is arranged on the other side of the fixed rod, and the top of the fixed base is fixedly connected to the spring. A groove matching the fixed bevel teeth is arranged inside the fixed block. The fixed block is sleeved on the fixed rod, and the fixed rod on one side passes through the high-temperature connecting ear, and the fixed rod on the other side passes through the low-temperature connecting ear. The end of the fixed rod is connected to the fixed groove.

[0008] Furthermore, the fixed rod also includes fixed bevel teeth, a spring, a lifting button and a fixed base, one side of the fixed bevel teeth is a plurality of bevel teeth, and the other side of the fixed bevel teeth is a straight rod, the bevel teeth are arranged on the outside of the fixed rod, the straight rod is arranged on the inside of the fixed rod, one end of the straight rod is provided with a lifting button, the bottom of the straight rod is connected to a spring, the other side of the fixed rod is provided with a fixed base, the top of the fixed base is fixedly connected to the spring, a groove matching the fixed bevel teeth is provided inside the fixed block, the fixed block is sleeved on the fixed rod, the fixed rod on one side passes through the high-temperature connecting ear, the fixed rod on the other side passes through the low-temperature connecting ear, and the end of the fixed rod is connected to the fixed groove.

[0009] The box body comprises a box cover, a box bottom plate, a box side plate and a box panel, the box cover is arranged on the top of the box body, the box bottom plate is arranged on the bottom of the box body, the box side plate is arranged on the side of the box body, and the box panel is arranged on the other side of the box body, which can play a role of dust and pressure prevention, and the box body is isolated from dust and foreign matter in the external environment. A hinge is arranged between the box cover and the box side plate, and the box cover and the box side plate are hinged by the hinge, so that the box side plate can be flipped relative to the box cover to achieve the effect of opening the box, and the side surfaces of the box cover and the box bottom plate are provided with a fixing groove design for fixing the fixing rod, and can also play a role of fixing the fixing rod and the filtering component, the heat insulation component and The limiting function of the partition, the box panel is provided with a through-hole pipe opening, and the through-hole pipe opening includes a design of a low-temperature inlet, a low-temperature outlet, a high-temperature inlet and a high-temperature outlet, which can realize the heat conversion between the high-temperature medium and the low-temperature medium, and the high-temperature heat exchange plate is provided with a high-temperature connecting ear on the upper side and the lower side, and a connecting hole is provided inside the high-temperature connecting ear, and the high-temperature heat exchange plate is provided with a through hole corresponding to the position of the through-hole pipe opening provided on the box panel, and the low-temperature heat exchange plate is provided with a low-temperature connecting ear on the upper side and the lower side, and a connecting hole is provided inside the low-temperature connecting ear, and the low-temperature heat exchange plate is provided with a through hole corresponding to the position of the through-hole pipe opening provided on the box panel, which is used for fixing rods to connect adjacent high-temperature heat exchange plates and low-temperature heat exchange plates A limiting rubber strip is arranged on the outside of the through hole on the right, a panel rubber strip is arranged around the inner side of the high-temperature heat exchange plate, a convex block is arranged inside the high-temperature heat exchange plate, and a groove corresponding to the panel rubber strip is arranged on the back of the high-temperature heat exchange plate. A limiting rubber strip is arranged on the outside of the through hole on the left, a panel rubber strip is arranged around the inner side of the low-temperature heat exchange plate, a convex block is arranged inside the low-temperature heat exchange plate, and a groove corresponding to the panel rubber strip is arranged on the back of the low-temperature heat exchange plate. The design is used to place the high-temperature medium and the low-temperature medium on both sides of the heat exchange plate respectively, and the heat conversion between the high-temperature medium and the low-temperature medium is carried out through the heat exchange plate, thereby avoiding the mixing of the high-temperature medium and the low-temperature medium. The design of the convex block makes the heat conversion between the high-temperature medium and the low-temperature medium more thorough, forming a plate heat exchanger. High-pressure resistant staggered flow structure. These staggered flow structures make the high-temperature medium and the low-temperature medium in the plate heat exchanger produce strong turbulence to achieve efficient heat exchange effect. The fixed rod includes fixed bevel teeth, springs, fixed blocks, lifting buttons and fixed bases. One side of the fixed bevel teeth is a plurality of bevel teeth, and the other side of the fixed bevel teeth is a straight rod. The bevel teeth are arranged on the outside of the fixed rod, and the straight rod is arranged on the inside of the fixed rod. A lifting button is arranged at one end of the straight rod, and a spring is connected to the bottom of the straight rod. A fixed base is arranged on the other side of the fixed rod, and the top of the fixed base is fixedly connected to the spring. A groove matching the fixed bevel teeth is arranged inside the fixed block. The fixed block is sleeved on the fixed rod, and the fixed rod on one side passes through the high-temperature connecting ear.The fixing rod on the other side passes through the low-temperature connection ear. The design of the end of the fixing rod connected to the fixing groove is used to quickly disassemble and assemble the filter component, heat exchange component and partition. The design of the bevel teeth allows the one-way movement of the fixing block, limits the separation of the filter component, heat exchange component and partition, and ensures the sealing between the components. The design of the spring is used to pop out the bevel teeth to limit the movement of the fixing block. The lifting button controls the lifting and lowering of the bevel teeth.

[0010] Furthermore, the low-temperature inlet is set at the lower right of the box panel, the low-temperature outlet is set at the upper right of the box panel, the high-temperature inlet is set at the upper left of the box panel, the high-temperature outlet is set at the lower left of the box panel, the low-temperature inlet is set at the lower right of the box panel, the low-temperature outlet is set at the upper right of the box panel, the high-temperature inlet is set at the upper left of the box panel, and the high-temperature outlet is set at the lower left of the box panel. In this design, the low-temperature medium moves upward after heating up and the high-temperature medium moves downward after cooling down, thereby ensuring sufficient heat exchange between the high-temperature medium and the low-temperature medium.

[0011] Furthermore, the projections arranged inside the high-temperature heat exchange plate and the low-temperature heat exchange plate are arranged in opposite directions. The design of the projections arranged inside the high-temperature heat exchange plate and the low-temperature heat exchange plate being arranged in opposite directions more fully ensures the heat exchange between the high-temperature medium and the low-temperature medium, forming a high-pressure resistant staggered flow structure of the plate heat exchanger. These staggered flow structures cause the high-temperature medium and the low-temperature medium in the plate heat exchanger to produce strong turbulence, thereby achieving an efficient heat exchange effect.

[0012] Furthermore, it also includes a partition, and a surrounding rubber strip is arranged around the inside of the partition. It also includes a partition, and a surrounding rubber strip is arranged around the inside of the partition, so as to ensure the sealing between the partition and the heat exchange component to achieve a better heat exchange effect.

[0013] Furthermore, it also includes a filter component, which includes a first filter plate and a second filter plate. The filter component is sequentially provided with a high-temperature heat exchange plate, a first filter plate, a low-temperature heat exchange plate, a second filter plate and a high-temperature heat exchange plate.

[0014] Furthermore, a filter net is arranged inside the first filter plate, a surrounding rubber strip is arranged around the inside of the first filter plate, connecting ears are arranged on the upper and lower sides of the first filter plate, connecting holes are arranged inside the connecting ears, a through hole corresponding to the low-temperature inlet and the low-temperature outlet is arranged on the right side of the first filter plate, and a limiting rubber strip is arranged on the outer side of the through hole.

[0015] Furthermore, a filter net is arranged inside the second filter plate, a surrounding rubber strip is arranged around the inside of the second filter plate, connecting ears are arranged on the upper and lower sides of the second filter plate, connecting holes are arranged inside the connecting ears, a through hole corresponding to the high-temperature inlet and the high-temperature outlet is arranged on the left side of the second filter plate, and a limiting rubber strip is arranged on the outer side of the through hole.

[0016] The filter component is designed to filter impurities in the high-temperature medium and the low-temperature medium, as well as dust in the external environment, to prevent clogging of the plate heat exchanger and ensure heat exchange efficiency.

[0017] Furthermore, the installation order of the box panel, the filter component, the heat exchange component and the partition is: the box panel, the filter component, the heat exchange component and the partition are arranged in sequence from right to left.

[0018] Furthermore, a method for disassembling and maintaining a plate heat exchanger includes the following specific steps:

[0019] S1. Open the side panels of the box upwards to make them horizontal;

[0020] S2. Remove the fixing rod and move the fixing rod outward, driving the filter component, the heat exchange component and the partition to move outward;

[0021] S3. Press the lifting button, which drives the fixed bevel gear to move downward, and then release the fixing block;

[0022] S4. Separate the filter component, the heat exchange component and the partition axially relative to the fixed rod, and separate the high-temperature heat exchange plates and the low-temperature heat exchange plates in the heat exchange component;

[0023] S5. Observe and determine whether the filter component needs to be replaced. If it needs to be replaced, replace it with a new filter component. If it does not need to be replaced, clean the filter component and rinse the front and back of each high-temperature heat exchange plate, low-temperature heat exchange plate and partition with clean water;

[0024] S6. After the flushing is completed, wipe the water off the front and back surfaces of each high-temperature heat exchange plate, low-temperature heat exchange plate and partition;

[0025] S7. Move the fixing block to reassemble the components, and after the assembly is completed, fix the fixing rod with the fixing groove;

[0026] S8. After the fixation is completed, perform a sealing test on the plate heat exchanger and continuously flow clean water into the device to observe whether there is any leakage. If there is a leakage, reassemble the device. If there is no leakage, the maintenance is completed.

[0027] Furthermore, the beneficial effects of the present invention are as follows: through the design of the box body, the dust-proof and pressure-proof effects of the plate heat exchanger are guaranteed; through the design of the filter component, the blockage inside the plate heat exchanger is avoided, and at the same time, the cleanliness of the heat exchange component is guaranteed to a certain extent, and the heat exchange component is easier to clean; at the same time, the filter component is easy to disassemble and assemble, and is easier to replace when the filter component cannot continue to work; the adjacent high-temperature heat exchange plates and low-temperature heat exchange plates are connected by a fixing rod, and multiple high-temperature heat exchange plates and low-temperature heat exchange plates can be moved at the same time, making disassembly and maintenance work easier to carry out; the design of the bevel teeth limits the adjacent components to avoid deformation of the adjacent components, resulting in inability to continue working; at the same time, the cooperation between the bevel teeth and the fixed block can quickly separate the adjacent high-temperature heat exchange plates and low-temperature heat exchange plates; after the disassembly and maintenance work is completed, the fixing groove can directly limit the fixing rod to ensure the alignment of the adjacent components, and prevent the adjacent components from offsetting and causing deformation, thereby affecting the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0029] Figure 2 It is a three-dimensional structural diagram of the box body of the present invention when the side panels are opened;

[0030] Figure 3 It is a schematic diagram of the cooperation of the housing, the filter component and the heat exchange component of the present invention;

[0031] Figure 4 It is a schematic diagram of the low-temperature heat exchange plate and the high-temperature heat exchange plate of the present invention when they are withdrawn;

[0032] Figure 5 is a schematic diagram of a filter component of the present invention;

[0033] Figure 6 is a schematic diagram of a heat exchange component of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the fixing rod of the present invention;

[0035] Figure 8 is a schematic diagram of a separator of the present invention;

[0036] Fig. 9 This is a front view of the high-temperature heat exchange plate of the present invention;

[0037] Fig.10 is a side view of the high temperature heat exchange plate of the present invention;

[0038] Fig.11 is a front view of the low-temperature heat exchange plate of the present invention;

[0039] Fig.12 is a side view of the low-temperature heat exchange plate of the present invention;

[0040] Fig.13 is a front view of the first filter plate of the present invention;

[0041] Fig.14 is a side view of the first filter plate of the present invention;

[0042] Fig.15 is a front view of the second filter plate of the present invention;

[0043] Fig.16 is a side view of the second filter plate of the present invention.

[0044] Wherein: 1. Box body; 101. Box body upper cover; 102. Box body bottom plate; 103. Box body side plate; 104. Hinge; 105. Box body panel; 106. Fixed groove; 107. Low-temperature inlet; 108. Low-temperature outlet; 109. High-temperature inlet; 1010. High-temperature outlet; 1011. Fixed rod; 10111. Fixed bevel teeth; 10112. Spring; 10113. Fixed block; 10114. Lifting button; 10115. Fixed base; 2. High-temperature heat exchange plate; 201. High-temperature connecting ear; 3. Low-temperature heat exchange plate; 301. Low-temperature connecting ear; 401. Enclosure rubber strip; 402. Limiting rubber strip; 5. Bump; 6. Partition; 7. Filter component; 71. First filter plate; 72. Second filter plate; 73. Connecting ear. DETAILED DESCRIPTION

[0045] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0046] Embodiment 1

[0047] like Figures 1 to 16As shown, a plate heat exchanger includes a box body 1, a heat exchange component and a fixing rod 1011, wherein the box body 1 includes a box body cover 101, a box body bottom plate 102, a box body side plate 103 and a box body panel 105, wherein the box body cover 101 is arranged on the top of the box body 1, the box body bottom plate 102 is arranged on the bottom of the box body 1, the box body side plate 103 is arranged on the side of the box body 1, and the box body panel 105 is arranged on the other side of the box body 1, and a hinge 104 is arranged between the box body cover 101 and the box body side plate 103, and the box body cover 101 and the box body side plate 103 are hinged by the hinge 104, and the sides of the box body cover 101 and the box body bottom plate 102 are provided with fixing grooves 106, and the box body panel 105 A through-hole pipe mouth is arranged on it, and the through-hole pipe mouth includes a low-temperature inlet 107, a low-temperature outlet 108, a high-temperature inlet 109 and a high-temperature outlet 1010. The heat exchange component includes a plurality of high-temperature heat exchange plates 2 and low-temperature heat exchange plates 3 arranged in sequence. The high-temperature heat exchange plate 2 is provided with a high-temperature connecting ear 201 on the upper side and the lower side, and the low-temperature heat exchange plate 3 is provided with a low-temperature connecting ear 301 on the upper side and the lower side. The high-temperature heat exchange plate 2 and the low-temperature heat exchange plate 3 are both provided with through holes corresponding to the positions of the through-hole pipe mouths arranged on the box panel 105. A limiting rubber strip 402 is provided on the outer side of the through hole on the right side of the high-temperature heat exchange plate 2, and a limiting rubber strip 402 is provided on the outer side of the through hole on the left side of the low-temperature heat exchange plate 3. The high-temperature heat exchange plate 2 and The inner side of the low-temperature heat exchange plate 3 is provided with a panel rubber strip 401, and the high-temperature heat exchange plate 2 and the low-temperature heat exchange plate 3 are provided with a protrusion 5 inside. The back of the high-temperature heat exchange plate 2 and the low-temperature heat exchange plate 3 are provided with a groove corresponding to the panel rubber strip 401, and also include a fixing block 10113, the fixing block 10113 is sleeved on the fixing rod 1011, the fixing rod 1011 on one side passes through the high-temperature connecting ear 201, and the fixing rod 1011 on the other side passes through the low-temperature connecting ear 301, the end of the fixing rod 1011 is connected to the fixing groove 106, the fixing rod 1011 also includes a fixing bevel tooth 10111, a spring 10112, a lifting button 10114 and a fixing base 10115, and one side of the fixing bevel tooth 10111 It is a plurality of helical teeth, and the other side of the fixed helical teeth 10111 is a straight rod, the helical teeth are arranged on the outside of the fixed rod 1011, the straight rod is arranged on the inside of the fixed rod 1011, a lifting button 10114 is arranged at one end of the straight rod, a spring 10112 is connected to the bottom of the straight rod, a fixed base 10115 is arranged on the other side of the fixed rod 1011, the top of the fixed base 10115 is fixedly connected to the spring 10112, a groove matching the fixed helical teeth 10111 is arranged inside the fixed block 10113, the fixed block 10113 is sleeved on the fixed rod 1011, the fixed rod 1011 on one side passes through the high-temperature connecting ear 201, and the fixed rod 1011 on the other side passes through the low-temperature connecting ear 301,The end of the fixing rod 1011 is connected to the fixing groove 106, the low-temperature inlet 107 is arranged at the lower right of the box panel 105, the low-temperature outlet 108 is arranged at the upper right of the box panel 105, the high-temperature inlet 109 is arranged at the upper left of the box panel 105, and the high-temperature outlet 1010 is arranged at the lower left of the box panel 105. The protrusions 5 arranged inside the high-temperature heat exchange plate 2 and the low-temperature heat exchange plate 3 are arranged in opposite directions, and also include a partition 6, and a surrounding plate rubber strip 401 is arranged around the inside of the partition 6, and also include a filter component 7, the filter component 7 includes a first filter plate 71 and a second filter plate 72, and the filter component 7 is sequentially provided with a high-temperature heat exchange plate 2, a first filter plate 71, a low-temperature heat exchange plate 3, a second filter plate 72 and a high-temperature heat exchange plate 2, a filter net is arranged inside the first filter plate 71, and a surrounding plate rubber strip is arranged around the inside of the first filter plate 71 401, the first filter plate 71 is provided with connecting ears 73 on the upper and lower sides, and the connecting ears 73 are provided with connecting holes inside. The first filter plate 71 is provided with through holes corresponding to the low-temperature inlet 107 and the low-temperature outlet 108 on the right side, and the limiting rubber strip 402 is provided on the outside of the through hole. The second filter plate 72 is provided with a filter net inside, and the second filter plate 72 is provided with a surrounding rubber strip 401 around the inside. The second filter plate 72 is provided with connecting ears 73 on the upper and lower sides, and the connecting ears 73 are provided with connecting holes inside. The second filter plate 72 is provided with through holes corresponding to the high-temperature inlet 109 and the high-temperature outlet 1010 on the left side, and the limiting rubber strip 402 is provided on the outside of the through hole. The installation order of the box panel 105, the filter component 7, the heat exchange component and the partition 6 is as follows: the box panel 105, the filter component 7, the heat exchange component and the partition 6 are arranged from right to left. ,

[0048] Embodiment 2

[0049] like Figures 1 to 16 As shown, a method for disassembling and maintaining a plate heat exchanger includes the following specific steps:

[0050] S1. Open the box side panel 103 upward so that the box side panel 103 is horizontal;

[0051] S2. Remove the fixing rod 1011 and move the fixing rod 1011 outward, driving the filter component 7, the heat exchange component and the partition 6 to move outward;

[0052] S3. Press the lifting button 10114, the lifting button 10114 drives the fixed helical gear 10111 to move downward, and then release the fixing block 10113;

[0053] S4. Separate the filter component 7, the heat exchange component and the partition plate 6 axially relative to the fixing rod 1011, and separate the high-temperature heat exchange plates 2 and the low-temperature heat exchange plates 3 in the heat exchange component;

[0054] S5. Observe and determine whether the filter component 7 needs to be replaced. If it needs to be replaced, replace it with a new filter component 7. If it does not need to be replaced, clean the filter component 7 and rinse the front and back of each high-temperature heat exchange plate 2, low-temperature heat exchange plate 3 and partition 6 with clean water;

[0055] S6. After the flushing is completed, wipe the front and back surfaces of each high-temperature heat exchange plate 2, low-temperature heat exchange plate 3 and partition 6 with clean water;

[0056] S7. Move the fixed block 10113 to reassemble the components. After the assembly is completed, the fixed rod 1011 is fixed in cooperation with the fixed groove 106;

[0057] S8. After the fixation is completed, perform a sealing test on the plate heat exchanger and continuously flow clean water into the device to observe whether there is any leakage. If there is a leakage, reassemble the device. If there is no leakage, the maintenance is completed.

Claims

1. A plate heat exchanger, characterized in that: The invention comprises a box body (1), a heat exchange component and a fixing rod (1011), wherein the box body (1) comprises a box body upper cover (101), a box body bottom plate (102), a box body side plate (103) and a box body panel (105), wherein the box body upper cover (101) is arranged on the top of the box body (1), the box body bottom plate (102) is arranged on the bottom of the box body (1), the box body side plate (103) is arranged on the side of the box body (1), and the box body panel (105) is arranged on the other side of the box body (1). A hinge (104) is provided between the upper cover (101) and the box side plate (103), the box upper cover (101) and the box side plate (103) are hingedly connected via the hinge (104), the side surfaces of the box upper cover (101) and the box bottom plate (102) are provided with fixing grooves (106), the box panel (105) is provided with a through-hole pipe opening, and the through-hole pipe opening includes a low-temperature inlet (107), a low-temperature outlet (108), a high-temperature inlet (109) and a high-temperature outlet (1010); The heat exchange component comprises a plurality of high-temperature heat exchange plates (2) and low-temperature heat exchange plates (3) arranged in sequence, the high-temperature heat exchange plate (2) being provided with a high-temperature connection ear (201) at the upper right side and the lower right side, the low-temperature heat exchange plate (3) being provided with a low-temperature connection ear (301) at the upper left side and the lower left side, the high-temperature heat exchange plate (2) and the low-temperature heat exchange plate (3) being provided with a through hole corresponding to the position of the through hole orifice arranged on the box panel (105), the high-temperature heat exchange plate (2) and the low-temperature heat exchange plate (3) being provided with a through hole corresponding to the position of the through hole orifice arranged on the box panel (105), A limiting rubber strip (402) is arranged on the outer side of the through hole on the right side of the plate (2), a limiting rubber strip (402) is arranged on the outer side of the through hole on the left side of the low-temperature heat exchange plate (3), a surrounding rubber strip (401) is arranged around the inner side of the high-temperature heat exchange plate (2) and the low-temperature heat exchange plate (3), a convex block (5) is arranged inside the high-temperature heat exchange plate (2) and the low-temperature heat exchange plate (3), and a groove corresponding to the surrounding rubber strip (401) is arranged on the back side of the high-temperature heat exchange plate (2) and the low-temperature heat exchange plate (3); It also includes a fixing block (10113), wherein the fixing block (10113) is sleeved on the fixing rod (1011), the fixing rod (1011) on one side passes through the high-temperature connecting ear (201), and the fixing rod (1011) on the other side passes through the low-temperature connecting ear (301), and the end of the fixing rod (1011) is connected to the fixing groove (106).

2. A plate heat exchanger according to claim 1, characterized in that: The fixed rod (1011) further comprises a fixed bevel tooth (10111), a spring (10112), a lifting button (10114) and a fixed base (10115); one side of the fixed bevel tooth (10111) is a plurality of bevel teeth; the other side of the fixed bevel tooth (10111) is a straight rod; the bevel teeth are arranged on the outside of the fixed rod (1011); the straight rod is arranged on the inside of the fixed rod (1011); one end of the straight rod is provided with a lifting button (10114); the bottom of the straight rod is connected to a spring (10112); the fixed rod (101 1) A fixed base (10115) is provided on the other side of the interior, the top of the fixed base (10115) is fixedly connected to the spring (10112), a groove matching the fixed bevel tooth (10111) is provided inside the fixed block (10113), the fixed block (10113) is sleeved on the fixed rod (1011), the fixed rod (1011) on one side passes through the high-temperature connection ear (201), and the fixed rod (1011) on the other side passes through the low-temperature connection ear (301), and the end of the fixed rod (1011) is connected to the fixed groove (106).

3. A plate heat exchanger according to claim 1, characterized in that: The low-temperature inlet (107) is arranged at the lower right of the box panel (105), the low-temperature outlet (108) is arranged at the upper right of the box panel (105), the high-temperature inlet (109) is arranged at the upper left of the box panel (105), and the high-temperature outlet (1010) is arranged at the lower left of the box panel (105).

4. A plate heat exchanger according to claim 1, characterized in that: The projections (5) arranged inside the high-temperature heat exchange plate (2) and the low-temperature heat exchange plate (3) are arranged in opposite directions.

5. A plate heat exchanger according to claim 1, characterized in that: It also includes a partition (6), and a surrounding rubber strip (401) is arranged around the inside of the partition (6).

6. A plate heat exchanger according to claim 1, characterized in that: The invention also comprises a filter component (7), wherein the filter component (7) comprises a first filter plate (71) and a second filter plate (72), and the filter component (7) is provided with a high-temperature heat exchange plate (2), a first filter plate (71), a low-temperature heat exchange plate (3), a second filter plate (72) and a high-temperature heat exchange plate (2) in sequence.

7. A plate heat exchanger according to claim 6, characterized in that: A filter net is arranged inside the first filter plate (71), a surrounding rubber strip (401) is arranged around the inside of the first filter plate (71), connecting ears (73) are arranged on the upper side and the lower side of the first filter plate (71), and a connecting hole is arranged inside the connecting ear (73), and a through hole corresponding to the low-temperature inlet (107) and the low-temperature outlet (108) is arranged on the right side of the first filter plate (71), and a limiting rubber strip (402) is arranged on the outer side of the through hole.

8. A plate heat exchanger according to claim 6, characterized in that: A filter net is arranged inside the second filter plate (72), a surrounding rubber strip (401) is arranged around the inside of the second filter plate (72), connecting ears (73) are arranged on the upper side and the lower side of the second filter plate (72), and a connecting hole is arranged inside the connecting ear (73), and a through hole corresponding to the high-temperature inlet (109) and the high-temperature outlet (1010) is arranged on the left side of the second filter plate (72), and a limiting rubber strip (402) is arranged on the outer side of the through hole.

9. A plate heat exchanger according to any one of claims 6 to 8, characterized in that: The installation order of the box panel (105), the filter component (7), the heat exchange component and the partition (6) is: the box panel (105), the filter component (7), the heat exchange component and the partition (6) are arranged in sequence from right to left.

10. A method for disassembling and maintaining a plate heat exchanger, characterized in that: The specific steps include: S1. Open the side panel (103) of the box upward so that the side panel (103) of the box is in a horizontal state; S2. Remove the fixing rod (1011) and move the fixing rod (1011) outward, driving the filter component (7), the heat exchange component and the partition (6) to move outward; S3. Press the lifting button (10114), the lifting button (10114) drives the fixed bevel gear (10111) to move downward, and then release the fixing block (10113); S4. Separating the filter component (7), the heat exchange component and the partition (6) axially relative to the fixed rod (1011), and separating each high-temperature heat exchange plate (2) and low-temperature heat exchange plate (3) in the heat exchange component; S5. Observe and determine whether the filter component (7) needs to be replaced. If it needs to be replaced, replace it with a new filter component (7). If it does not need to be replaced, clean the filter component (7) and rinse the front and back surfaces of each high-temperature heat exchange plate (2), low-temperature heat exchange plate (3) and partition (6) with clean water; S6. After the flushing is completed, wipe the front and back surfaces of each high-temperature heat exchange plate (2), low-temperature heat exchange plate (3) and partition (6) with clean water; S7. Move the fixed block (10113) to reassemble the components. After the assembly is completed, the fixed rod (1011) is fixed in the fixed groove (106); S8. After the fixation is completed, perform a sealing test on the plate heat exchanger and continuously flow clean water into the device to observe whether there is any leakage. If there is a leakage, reassemble the device. If there is no leakage, the maintenance is completed.

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