Plate heat exchanger mounting device and system

Abstract

The utility model relates to a plate heat exchanger mounting device and system. The utility model discloses a plate heat exchanger mounting device and system. The plate heat exchanger mounting device comprises a cylinder body, an air bag, a plurality of first arc-shaped plates, a plurality of second arc-shaped plates, a plurality of push rods, a control module, an electromagnetic valve and a compressor. In the actual use process of the plate heat exchanger mounting device and system, the compressor and the electromagnetic valve are controlled to be opened through the control module, air is introduced into the air bag through the first holes, the air bag expands, the multiple first arc-shaped plates generate the same pushing force on the multiple second arc-shaped plates through the corresponding push rods, and the plate heat exchanger is mounted. The second arc-shaped plates which are evenly distributed in the circumferential direction of the cylinder body generate the same thrust on the plate sheets surrounding the plate heat exchanger installation device, the plate sheets surrounding the plate heat exchanger installation device and sealing rubber strips are stacked in order, the plate sheet stacking efficiency is improved, manual contact with the plate sheets is not needed, and the personnel injury risk is reduced.

Description

Technical Field

[0001] The present application relates to the field of nuclear power plant maintenance technology, and in particular to a plate heat exchanger installation device and system. Background Art

[0002] Plate heat exchangers are installed in nuclear power plant nuclear island cooling water RRI and other systems, as well as thermal power plants. The function of the plate heat exchanger is to transfer the heat released by the equipment to the cold source, which includes nuclear equipment and conventional equipment, and the cold source includes seawater or fresh water. After the heat exchanger has been running for a period of time, impurities adhere to the surface of the heat exchanger, affecting the heat transfer efficiency, and the heat exchanger needs to be cleaned or replaced.

[0003] When disassembling and overhauling the plate heat exchanger, each component needs to be disassembled and inspected, and all components need to be assembled together during the reinstallation process. It is required that each plate and sealing film be assembled flat, and deviation may cause water or oil leakage.

[0004] However, since the plate heat exchanger has uneven sides or planes, it is difficult to manually place the plates and sealing strips neatly on the cylindrical plate heat exchanger. If the unevenness exceeds the standard, it may cause leakage, and the safe operation of the nuclear power plant cannot be guaranteed. In serious cases, it needs to be shut down for maintenance, resulting in tens of millions of economic losses. At the same time, the manual stacking method is inefficient and has a high risk of injury. Utility Model Content

[0005] Based on this, it is necessary to provide a plate heat exchanger installation device and system to address the problem that it is difficult to manually arrange the plates and sealing strips neatly on the cylindrical plate heat exchanger due to the unevenness of the four sides or the plane of the plate heat exchanger, and the manual stacking method is inefficient and has a high risk of personal injury.

[0006] A plate heat exchanger installation device, the plate heat exchanger installation device comprising:

[0007] A cylinder body is provided with a first hole, and a side wall of the cylinder body is provided with a plurality of second holes along its radial direction;

[0008] An airbag is disposed inside the cylinder body, and the interior of the airbag is communicated with the first hole;

[0009] A plurality of first arc-shaped plates, wherein the plurality of first arc-shaped plates are evenly arranged around the circumference of the cylinder body, and the first arc-shaped plates are arranged between the airbag and the inner wall of the cylinder body;

[0010] A plurality of second arc-shaped plates, the plurality of second arc-shaped plates surround the outer wall of the cylinder body and are evenly arranged along the circumference of the cylinder body, and the plurality of second arc-shaped plates correspond one to one to the plurality of first arc-shaped plates;

[0011] A plurality of push rods are arranged in one-to-one correspondence with the second holes and penetrate through the corresponding second holes, one end of the push rod is connected to the second arc plate, and the other end is connected to the first arc plate.

[0012] In one embodiment, the cylinder body includes a first cylinder and a second cylinder;

[0013] The first cylinder comprises a straight section and a dome connected to each other, the straight section extends along a first direction, the second cylinder comprises a cylinder and a bottom plate extending along the first direction, the bottom plate covers an opening of the cylinder away from the first cylinder, and an end of the cylinder away from the bottom plate is detachably connected to an end of the straight section away from the dome;

[0014] The first hole is opened in the dome, and the second hole is opened in the side wall of the straight section and / or the side wall of the cylinder;

[0015] The first direction is the axial direction of the cylinder body.

[0016] In one embodiment, the plate heat exchanger mounting device further includes a ventilation component, and the ventilation component is penetrated through the first hole and communicated with the interior of the airbag.

[0017] In one embodiment, the vent assembly includes a joint pipe, a fastener, a pipe cap and a seal;

[0018] The joint pipe is passed through the first hole, and the joint pipe is provided with an air hole, and the air hole is communicated with the interior of the airbag;

[0019] The pipe cap is sleeved on the end of the joint pipe away from the airbag, and the sealing member is sleeved on the outer periphery of the joint pipe and is sealed and abutted between the joint pipe and the pipe cap;

[0020] The fastener is sleeved on the joint pipe and fixes the joint pipe to the cylinder body.

[0021] In one embodiment, the plate heat exchanger mounting device further includes an elastic member, wherein the elastic member is located between the inner wall of the cylinder body and the first arc-shaped plate, the elastic member is sleeved on the push rod, one end of the elastic member abuts against the first arc-shaped plate, and the other end of the elastic member abuts against the inner wall of the cylinder body.

[0022] In one embodiment, the plate heat exchanger installation device further comprises a positioning assembly, wherein the positioning assembly comprises a positioning rod and a locking member;

[0023] A positioning hole is opened at one end of the cylinder body, the axis of the positioning hole coincides with the axis of the cylinder body, the positioning rod is adapted to the positioning hole, the locking piece is sleeved on the positioning rod, and the positioning rod is fixed to the cylinder body.

[0024] In one embodiment, the plate heat exchanger installation device further comprises a lining plate, and the lining plate is attached to a side of the second arc-shaped plate facing away from the cylinder body.

[0025] In one embodiment, the plate heat exchanger mounting device further comprises a plurality of connectors, a plurality of connecting through holes are formed on a side of the second arc-shaped plate close to the cylinder body, and the plurality of connectors are correspondingly passed through the plurality of connecting through holes and connected to the lining plate.

[0026] In one embodiment, a plurality of first threaded holes are formed on a side of the first arc plate close to the second arc plate, a plurality of second threaded holes are formed on a side of the second arc plate close to the first arc plate, external threads are formed on both ends of the push rod, and the two ends of the push rod are respectively threadedly matched with the inner wall of the first threaded hole and the inner wall of the second threaded hole.

[0027] An embodiment of the present application further provides a plate heat exchanger installation system, the plate heat exchanger installation system comprising: a control module, a solenoid valve, a compressor and the plate heat exchanger installation device;

[0028] The airbag is connected to the solenoid valve through the first hole, the solenoid valve is connected to the compressor, and the compressor inflates or deflates the airbag through the solenoid valve;

[0029] The control module is connected to the solenoid valve and the compressor signals at the same time to control the solenoid valve and the compressor to open or close.

[0030] During actual use of the above-mentioned plate heat exchanger installation device and system, the plate heat exchanger installation device is first placed inside the plate heat exchanger and arranged coaxially with the plate heat exchanger, and then the multiple plates of the plate heat exchanger are neatly stacked to form a group of plates, and the plate surfaces of each plate that need to be provided with sealing strips are all facing the axis of the cylinder body or away from the axis of the cylinder body, and each group of plates and sealing strips are arranged at radial intervals along the cylinder body and stacked neatly, and multiple groups of plates and sealing strips are stacked, wherein the sealing strips are used to seal the gap on the outer periphery between two plates. The installation method of the plates and sealing strips in the plate heat exchange device and the specific heat exchange method of the plate heat exchange device refer to the prior art. Then, multiple groups of neatly stacked plates and sealing strips are matched to multiple second curved plates one by one, and then multiple groups of neatly stacked plates and sealing strips are sequentially arranged around the plate heat exchanger mounting device, so that the second curved plates can abut against the plates, and ventilate the inside of the airbag through the first hole, so that the airbag expands. Since the volume of the airbag expands synchronously around the circumference of the airbag during the expansion of the airbag, the force applied to each part of the circumference of the airbag is also the same along its circumference, so that the same thrust can be generated on the multiple first curved plates evenly arranged around the circumference of the cylinder body, thereby allowing the multiple first curved plates to pass through the corresponding push rods. The same thrust is generated for multiple second arc plates, so that the second arc plates evenly arranged around the circumference of the cylinder body generate the same thrust for multiple groups of plates arranged around the plate heat exchanger installation device, so that the multiple groups of plates and sealing strips arranged around the plate heat exchanger installation device are neatly stacked, and then the compressor is controlled to be closed by the control module, so that the gas in the airbag is discharged through the first hole, so that the thrust generated by the airbag on the first arc plate is released, and the thrust of the second arc plate on the plate is released, and then the plate heat exchanger installation device is taken out from the inside of the plate heat exchanger. At the same time, after an appropriate amount of gas is introduced, the solenoid valve can be controlled to close by the control module to achieve pressure maintenance of the plate. The above process can not only stack each group of plates and sealing strips neatly, but also improve the efficiency of stacking the plates and sealing strips, ensuring that the pressure on the multiple groups of plates around the cylinder body is the same during each ventilation, and the quality of the stacking of the multiple groups of plates is also the same, and there is no need to manually touch the plates, reducing the risk of injury to personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] FIG. 1 is a schematic diagram of a plate heat exchanger installation device according to an embodiment.

[0032] FIG. 2 is a top cross-sectional view of FIG. 1 .

[0033] FIG. 3 is a schematic diagram of a plate heat exchanger installation system.

[0034] Description of Figure Numbers:

[0035] 100-Plate heat exchanger installation device;

[0036] 110- cylinder body; 111- first hole; 112- second hole; 113- first cylinder; 114- second cylinder; 115- straight section; 116- dome; 117- cylinder body; 118- bottom plate;

[0037] 120-airbag;

[0038] 130 - first arc plate; 131 - first threaded hole;

[0039] 140 - second arc-shaped plate; 141 - connecting through hole; 142 - second threaded hole;

[0040] 150 - putter;

[0041] 160-ventilation assembly; 161-connector pipe; 162-fastener; 163-pipe cap; 164-seal; 165-air hole;

[0042] 170-elastic member;

[0043] 180-positioning assembly; 181-positioning rod; 182-locking member; 183-positioning hole;

[0044] 190- lining plate; 191- connecting piece; 192- boss; 193- groove;

[0045] 200-Plate heat exchanger installation system;

[0046] 210-control module; 211-solenoid valve; 212-compressor; 213-load sensor; 214-alarm; 215-display;

[0047] OX-first direction. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0049] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0050] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0054] Refer to Figure 1, which shows a structural schematic diagram of a plate heat exchanger mounting device 100 in an embodiment of the present application. The plate heat exchanger mounting device 100 provided in an embodiment of the present application includes a cylinder body 110, an airbag 120, a plurality of first curved plates 130, a plurality of second curved plates 140 and a plurality of push rods 150.

[0055] In the above-mentioned plate heat exchanger installation device 100, the cylinder body 110 is provided with a first hole 111, and the side wall of the cylinder body 110 is provided with a plurality of second holes 112 along its radial direction. The airbag 120 is arranged inside the cylinder body 110, and the inside of the airbag 120 is connected to the first hole 111. A plurality of first curved plates 130 are evenly arranged around the circumference of the cylinder body 110, and the first curved plates 130 are arranged between the airbag 120 and the inner wall of the cylinder body 110 along the first direction OX. A plurality of second curved plates 140 surround the outer wall of the cylinder body 110 and are evenly arranged along the circumference of the cylinder body 110, and the plurality of second curved plates 140 correspond to the plurality of first curved plates 130 one by one, and the second curved plates 140 are arranged outside the cylinder body 110 along the first direction OX. The push rod 150 is disposed in one-to-one correspondence with the second hole 112 and penetrates the corresponding second hole 112 . One end of the push rod 150 is connected to the second arc plate 140 , and the other end is connected to the first arc plate 130 .

[0056] During actual use of the above-mentioned plate heat exchanger installation device 100, the plate heat exchanger installation device 100 is first placed inside the plate heat exchanger and arranged coaxially with the plate heat exchanger, and then the multiple plates of the plate heat exchanger are neatly stacked to form a group of plates, and the plate surfaces of each plate that need to be provided with sealing strips are all facing the axis of the cylinder body 110 or away from the axis of the cylinder body 110, each group of plates and sealing strips are arranged at radial intervals along the cylinder body and stacked neatly, and multiple groups of plates and sealing strips are stacked, wherein the sealing strips are used to seal the gap on the outer periphery between two plates. The installation method of the plates and sealing strips in the plate heat exchange device and the specific heat exchange method of the plate heat exchange device refer to the prior art. Then, multiple groups of neatly stacked plates and sealing strips are placed one by one corresponding to the multiple second curved plates 140, and then multiple groups of neatly stacked plates and sealing strips are sequentially arranged around the plate heat exchanger installation device 100, so that the second curved plates 140 can abut against the plates, and ventilate the inside of the airbag 120 through the first hole 111, so that the airbag 120 expands. Since the volume of the airbag 120 expands synchronously around the circumference of the airbag 120 during the expansion of the airbag 120, the force applied to each part of the circumference of the airbag 120 is also the same along its circumference, so that the same thrust can be generated on the multiple first curved plates 130 evenly arranged around the circumference of the cylinder body 110, thereby making the multiple first curved plates 130 The plate 130 generates the same thrust to the multiple second arc plates 140 through the corresponding push rods 150, so that the second arc plates 140 evenly arranged around the circumference of the cylinder body 110 generate the same thrust to the multiple groups of plates arranged around the plate heat exchanger installation device 100, so that the multiple groups of plates and sealing strips arranged around the plate heat exchanger installation device 100 are neatly stacked, and then the gas in the airbag 120 is discharged through the first hole 111, so that the thrust generated by the airbag 120 on the first arc plate 130 is released, and the thrust of the second arc plate 140 on the plate is released, and then the plate heat exchanger installation device 100 can be taken out from the inside of the plate heat exchanger. The above process can not only stack each set of plates and sealing strips neatly, but also improve the efficiency of stacking the plates and sealing strips, ensuring that during each ventilation, the multiple sets of plates surrounding the cylinder body are subjected to the same pressure, the quality of the stacking of the multiple sets of plates is also the same, and there is no need for manual contact with the plates, reducing the risk of personal injury.

[0057] Referring to FIG. 2 , specifically, the arc directions of the first arc plate 130 and the second arc plate 140 are circumferentially around the cylinder body 110 , and the extending directions of the first arc plate 130 and the second arc plate 140 are axially of the cylinder body 110 .

[0058] Specifically, the number of plates in each group is 6-12. While ensuring that more plates can be stacked in each group each time to improve efficiency, considering that the increase in the number of plates in each group increases the offset of the first and last plates when pushing the stack, the number of plates in each group is controlled to 6-12, so that the offset of the first and last plates in each group of plates is controlled within the allowable range. The specific number of plates in each group can be calculated and adjusted according to the different frictions between plates of different materials, sizes, and design shapes. The specific number is not limited, and only the preferred number is given for common situations.

[0059] Specifically, a plurality of push rods 150 are connected between each first curved plate 130 and the second curved plate 140. The extension direction of the push rods 150 is the radial direction of the cylinder body 110. The plurality of push rods 150 are evenly arranged along the axial direction of the cylinder body 110, so that the first curved plate 130 and the second curved plate 140 can stably move along the radial direction of the cylinder body 110, effectively reducing the risk of uneven placement of the plates due to different pressures on the plates from the two ends of the second curved plate 140 along the axial direction of the cylinder body 110.

[0060] Referring to FIG. 1 , in one embodiment, the cylinder body 110 includes a first cylinder 113 and a second cylinder 114. The first cylinder 113 includes a straight section 115 and a dome 116 connected to each other, the straight section 115 extending along a first direction OX, the second cylinder 114 includes a cylinder 117 and a bottom plate 118 extending along the first direction OX, the bottom plate 118 covers the opening of the cylinder 117 away from the first cylinder 113, one end of the cylinder 117 away from the bottom plate 118 is detachably connected to one end of the straight section 115 away from the dome 116, the first hole 111 is opened in the dome 116, the second hole 112 is opened in the side wall of the straight section 115, and the first direction OX is the axial direction of the cylinder body 110.

[0061] In this embodiment, since the bottom plate 118 covers the opening of the cylinder 117 away from the first cylinder 113, the plate heat exchanger mounting device 100 can be stably placed inside the plate heat exchanger through the bottom plate 118. At the same time, the straight section 115 is connected to the cylinder 117, and the straight section 115 and the cylinder 117 both extend along the first direction OX, so that the straight section 115 and the cylinder 117 form a cylinder with the same inner diameter, so that the force of the airbag 120 along the radial direction of the cylinder 110 is equal at this point, thereby ensuring that the force of the airbag 120 on the multiple first curved plates 130 is equal at all times, and the force of the first curved plate 130 on the second curved plate 140 through the push rod 150 is equal at all times, so that the force of the second curved plate 140 on the plate is also equal, so that the plate and the sealing strip can be stacked neatly.

[0062] In another embodiment, the second holes 112 are opened on the side wall of the straight section 115 and the side wall of the cylinder 117 , and the plurality of second holes are evenly arranged along the axial direction of the cylinder 110 .

[0063] In yet another embodiment, the second hole 112 is opened on the side wall of the cylinder 117 .

[0064] In addition, by providing a detachable connection between one end of the cylinder 117 away from the bottom plate 118 and one end of the straight section 115 away from the dome 116 , the installation and placement of the first arc plate 130 and the airbag 120 inside the cylinder body 110 can be facilitated.

[0065] Furthermore, by opening the first hole 111 in the dome 116 , the device communicating with the airbag 120 through the first hole 111 will not substantially hinder the movement of the first curved plate 130 and the second curved plate 140 .

[0066] Specifically, please refer to Figure 1, a boss 192 is provided at the end of the straight section 115 away from the dome 116, the inner diameter of the boss 192 is the same as the inner diameter of the straight section 115, and the outer diameter of the boss 192 is smaller than the outer diameter of the straight section 115. A groove 193 is provided on the end surface of the cylinder 117 away from the bottom plate 118, and the side wall of the groove 193 is threadedly matched with the outer wall of the boss 192, thereby facilitating the detachable connection between the straight section 115 and the cylinder 117.

[0067] In another embodiment, a boss 192 is provided at one end of the cylinder 117 close to the dome 116, the inner diameter of the boss 192 is the same as the inner diameter of the cylinder 117, and the outer diameter of the boss 192 is smaller than the outer diameter of the cylinder 117. A groove 193 is provided on the end surface of the straight section 115 facing away from the dome 116, and the side wall of the groove 193 is threadedly matched with the outer wall of the boss 192, thereby facilitating the detachable connection between the straight section 115 and the cylinder 117.

[0068] Specifically, the outer diameter of the cylinder 117 is the same as the inner diameter of the circular hole at the center of the bottom of the plate heat exchanger, so that the plate heat exchanger mounting device 100 and the plate heat exchanger can be coaxially arranged by placing the cylinder 117 inside the circular hole at the center of the bottom of the plate heat exchanger.

[0069] Referring to FIG. 1 , in one embodiment, the plate heat exchanger mounting device 100 further includes a vent assembly 160, which is disposed through the first hole 111 and communicates with the interior of the airbag 120. In this way, the inflatable device can communicate with the interior of the airbag 120 through the vent assembly 160, so as to achieve the purpose of inflating the airbag 120 or discharging the gas in the airbag 120 by the inflatable device.

[0070] Referring to FIG. 1 , in one embodiment, the vent assembly 160 includes a joint pipe 161, a fastener 162, a pipe cap 163, and a sealing member 164. The joint pipe 161 is inserted into the first hole 111, and is provided with an air hole 165, which is communicated with the interior of the airbag 120. The pipe cap 163 is sleeved on an end of the joint pipe 161 away from the airbag 120, and the sealing member 164 is sleeved on the outer periphery of the joint pipe 161, and the sealing member 164 abuts between the joint pipe 161 and the pipe cap 163. The fastener 162 is sleeved on the joint pipe 161 and fixes the joint pipe 161 to the cylinder body 110.

[0071] In this embodiment, by providing a pipe cap 163 to be sleeved on the outer circumference of the joint pipe 161, the risk of foreign matter entering the plate heat exchanger installation device 100 when it is placed and affecting the use of the plate heat exchanger installation device 100 is effectively reduced. By inserting the joint pipe 161 into the first hole 111, and opening an air hole 165 in the joint pipe 161 to communicate with the inside of the airbag 120, and fixing the joint pipe 161 to the cylinder body 110 by the fastener 162, the inflator can be connected to the joint pipe 161 through the air hole 165, and indirectly communicate with the inside of the airbag 120, so as to achieve the purpose of inflating the airbag 120 or discharging the gas in the airbag 120 through the inflator.

[0072] Furthermore, by providing a seal 164 between the joint pipe 161 and the pipe cap 163 , the risk of insects, dust or other foreign matter that may damage the internal structure of the plate heat exchanger installation device 100 entering the plate heat exchanger installation device 100 can be effectively reduced when the plate heat exchanger installation device 100 is in storage.

[0073] Specifically, the fastener 162 is a nut, and the fastener 162 is threadedly matched with the joint pipe 161 .

[0074] Referring to FIG. 1 , in one embodiment, the plate heat exchanger installation device 100 further includes an elastic member 170, which is located between the inner wall of the cylinder 110 and the first curved plate 130, and is sleeved on the push rod 150. One end of the elastic member 170 abuts against the first curved plate 130, and the other end of the elastic member 170 abuts against the inner wall of the cylinder 110. In this way, after the airbag 120 is exhausted, the elastic force accumulated by the elastic member 170 can push the first curved plate 130 back to its original position, that is, to move the first curved plate 130 toward the axis direction of the cylinder 110, so that the push rod 150 can drive the second curved plate 140 to move toward the direction of the cylinder 110, so that the second curved plate 140 automatically releases the abutment against the plate.

[0075] Referring to FIG. 1 , in one embodiment, the plate heat exchanger installation device 100 further includes a positioning assembly 180, and the positioning assembly 180 includes a positioning rod 181 and a locking member 182. A positioning hole 183 is provided at one end of the cylinder body 110, and the axis of the positioning hole 183 coincides with the axis of the cylinder body 110. The positioning rod 181 is adapted to the positioning hole 183, and the locking member 182 is sleeved on the positioning rod 181 to fix the positioning rod 181 to the cylinder body 110. In this way, by arranging the positioning rod 181 at the bottom center of the plate heat exchanger, it is easy to achieve the purpose of placing the plate heat exchanger installation device 100 at the bottom center of the plate heat exchanger, and the positioning of the plate heat exchanger installation device 100 is convenient, thereby ensuring that the pressure of the plurality of second arc plates 140 on the plate sheets is equal.

[0076] Specifically, the locking member 182 is a nut, and the locking member 182 is threadedly matched with the positioning rod 181 .

[0077] 1 , in one embodiment, the plate heat exchanger installation device 100 further includes a lining plate 190, which is attached to the side of the second curved plate 140 away from the cylinder body 110. Thus, by arranging the lining plate 190 to abut against the plate and apply pressure to the plate, the risk of physical damage to the plate heat exchanger plate by a hard object can be effectively reduced.

[0078] Specifically, the liner 190 is made of a non-metal material, preferably PTFE (Polytetrafluoroethylene).

[0079] Referring to FIG. 1 , in one embodiment, the plate heat exchanger installation device 100 further includes a plurality of connectors 191, the second curved plate 140 is provided with a plurality of connecting through holes 141, and the plurality of connectors 191 are correspondingly passed through the plurality of connecting through holes 141 and connected to the lining plate 190. Thus, by passing the connectors 191 through the connecting through holes 141 of the second curved plate 140 and connecting to the lining plate 190, the lining plate 190 can be conveniently attached to the side of the second curved plate 140 away from the cylinder body 110, thereby completing the installation of the lining plate 190.

[0080] Preferably, the lining plate 190 is provided with a thread groove, and the connecting piece 191 is passed through the connecting through hole 141 and cooperates with the thread of the thread groove, so as to facilitate the disassembly and replacement of the lining plate 190 .

[0081] Referring to FIG. 2 , in one embodiment, a first arc plate 130 is provided with a plurality of first threaded holes 131 on one side close to the second arc plate 140, a second arc plate 140 is provided with a plurality of second threaded holes 142 on one side close to the first arc plate 130, and external threads are provided at both ends of the push rod 150, and the two ends of the push rod 150 are respectively threadedly matched with the inner wall of the first threaded hole 131 and the inner wall of the second threaded hole 142. In this way, it is convenient to disassemble the push rod 150 from the first arc plate 130 and the second arc plate 140, so that the assembly and disassembly of the plate heat exchanger installation device 100 can be quickly realized.

[0082] 3 , an embodiment of the present application further provides a plate heat exchanger installation system 200 , which includes a control module 210 , a solenoid valve 211 , a compressor 212 , and a plate heat exchanger installation device 100 .

[0083] The airbag 120 is connected to the electromagnetic valve 211 through the first hole 111 , the electromagnetic valve is connected to the compressor 212 , and the compressor 212 inflates or deflates the airbag 120 through the electromagnetic valve 211 .

[0084] The control module 210 is signal-connected to the solenoid valve 211 and the compressor 212 to control the solenoid valve 211 and the compressor 212 to open or close.

[0085] During actual use of the above-mentioned plate heat exchanger installation system 200, the plate heat exchanger installation device 100 is first placed inside the plate heat exchanger and arranged coaxially with the plate heat exchanger, and then the multiple plates of the plate heat exchanger are neatly stacked to form a group of plates, and the plate surfaces of each plate that need to be provided with sealing strips are all facing the axis of the cylinder body 110 or away from the axis of the cylinder body 110, and each group of plates and sealing strips are arranged at radial intervals along the cylinder body and stacked neatly, and multiple groups of plates and sealing strips are stacked, wherein the sealing strips are used to seal the gap on the outer periphery between two plates. The installation method of the plates and sealing strips in the plate heat exchange device and the specific heat exchange method of the plate heat exchange device refer to the prior art. Then, a plurality of neatly stacked plates and sealing strips are matched to the plurality of second curved plates 140 one by one, and then the plurality of neatly stacked plates and sealing strips are sequentially arranged around the plate heat exchanger installation device 100, so that the second curved plates 140 can abut against the plates, and ventilate the inside of the airbag 120 through the first hole 111, so that the airbag 120 expands. Since the volume of the airbag 120 expands synchronously around the circumference of the airbag 120 during the expansion of the airbag 120, the force applied to each circumference of the airbag 120 is also the same along the circumference, so that the same thrust can be generated on the plurality of first curved plates 130 uniformly arranged around the circumference of the cylinder body 110, thereby enabling the plurality of first curved plates 130 to pass through the corresponding push rods 1 50 generates the same thrust to the plurality of second curved plates 140, so that the second curved plates 140 evenly arranged around the circumference of the cylinder body 110 generate the same thrust to the plurality of groups of plates arranged around the plate heat exchanger installation device 100, so that the plurality of groups of plates and sealing strips arranged around the plate heat exchanger installation device 100 are neatly stacked, and then the compressor 212 is controlled to be closed by the control module 210, so that the gas in the airbag 120 is discharged through the first hole 111, so that the thrust generated by the airbag 120 on the first curved plate 130 is released, and the thrust of the second curved plate 140 on the plate is released, and then the plate heat exchanger installation device 100 is taken out from the inside of the plate heat exchanger. At the same time, after an appropriate amount of gas is introduced, the solenoid valve 211 can be controlled to be closed by the control module 210 to achieve pressure maintenance of the plate. The above process can not only stack each set of plates and sealing strips neatly, but also improve the efficiency of stacking the plates and sealing strips, ensuring that during each ventilation, the multiple sets of plates surrounding the cylinder body are subjected to the same pressure, the quality of the stacking of the multiple sets of plates is also the same, and there is no need for manual contact with the plates, reducing the risk of personal injury.

[0086] Preferably, the plate heat exchanger installation system 200 further includes a plurality of load sensors 213, an alarm 214 and a display 215. The load sensor 213 is disposed between the elastic member 170 and the cylinder 110. The load sensor 213, the alarm 214 and the display 215 are all connected to the control module 210. The load sensor 213 transmits the load of the elastic member 170 on the cylinder 110 to the control module 210 and displays it through the display 215, so as to monitor the pressure of the airbag 120 on the first curved plate 130 at each elastic member 170. When the monitored pressure exceeds the deviation allowable value of the preset value, the alarm 214 sounds an alarm, and the control module 210 controls the compressor 212 to be turned off, and controls the electromagnetic valve 211 to exhaust, so that the airbag 120 contracts, and the elastic force of the elastic member 170 pushes the first curved plate 130 to reset.

[0087] Specifically, the alarm 214 emits an alarm signal such as sound or light, the elastic member 170 is a spring, and the connecting member 191 is a screw.

[0088] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A plate heat exchanger installation device, characterized in that: The plate heat exchanger installation device comprises: A cylinder body is provided with a first hole, and a side wall of the cylinder body is provided with a plurality of second holes along its radial direction; An airbag is disposed inside the cylinder body, and the interior of the airbag is communicated with the first hole; A plurality of first arc-shaped plates, wherein the plurality of first arc-shaped plates are evenly arranged around the circumference of the cylinder body, and the first arc-shaped plates are arranged between the airbag and the inner wall of the cylinder body; A plurality of second arc-shaped plates, the plurality of second arc-shaped plates surround the outer wall of the cylinder body and are evenly arranged along the circumference of the cylinder body, and the plurality of second arc-shaped plates correspond one to one to the plurality of first arc-shaped plates; A plurality of push rods are arranged in one-to-one correspondence with the second holes and penetrate through the corresponding second holes, one end of the push rod is connected to the second arc plate, and the other end is connected to the first arc plate.

2. The plate heat exchanger installation device according to claim 1, characterized in that: The cylinder body includes a first cylinder and a second cylinder; The first cylinder comprises a straight section and a dome connected to each other, the straight section extends along a first direction, the second cylinder comprises a cylinder and a bottom plate extending along the first direction, the bottom plate covers an opening of the cylinder away from the first cylinder, and an end of the cylinder away from the bottom plate is detachably connected to an end of the straight section away from the dome; The first hole is opened in the dome, and the second hole is opened in the side wall of the straight section and / or the side wall of the cylinder; The first direction is the axial direction of the cylinder body.

3. The plate heat exchanger installation device according to claim 1, characterized in that: The plate heat exchanger installation device further comprises a ventilation component, which is penetrated through the first hole and communicated with the interior of the air bag.

4. The plate heat exchanger installation device according to claim 3, characterized in that: The ventilation assembly includes a joint pipe, a fastener, a pipe cap and a sealing member; The joint pipe is passed through the first hole, and the joint pipe is provided with an air hole, and the air hole is communicated with the interior of the airbag; The pipe cap is sleeved on the end of the joint pipe away from the airbag, and the sealing member is sleeved on the outer periphery of the joint pipe and is sealed and abutted between the joint pipe and the pipe cap; The fastener is sleeved on the joint pipe and fixes the joint pipe to the cylinder body.

5. The plate heat exchanger installation device according to claim 1, characterized in that: The plate heat exchanger mounting device also includes an elastic member, which is located between the inner wall of the cylinder body and the first arc plate, and is sleeved on the push rod. One end of the elastic member abuts against the first arc plate, and the other end of the elastic member abuts against the inner wall of the cylinder body.

6. The plate heat exchanger installation device according to claim 1, characterized in that: The plate heat exchanger installation device further comprises a positioning assembly, wherein the positioning assembly comprises a positioning rod and a locking member; A positioning hole is opened at one end of the cylinder body, the axis of the positioning hole coincides with the axis of the cylinder body, the positioning rod is adapted to the positioning hole, the locking piece is sleeved on the positioning rod, and the positioning rod is fixed to the cylinder body.

7. The plate heat exchanger installation device according to claim 1, characterized in that: The plate heat exchanger installation device further comprises a lining plate, and the lining plate is attached to a side of the second arc-shaped plate away from the cylinder body.

8. The plate heat exchanger installation device according to claim 7, characterized in that: The plate heat exchanger installation device also includes a plurality of connectors. A plurality of connecting holes are formed on one side of the second arc-shaped plate close to the cylinder body. The plurality of connectors are correspondingly passed through the plurality of connecting holes and connected to the lining plate.

9. The plate heat exchanger installation device according to claim 1, characterized in that: A plurality of first threaded holes are formed on one side of the first arc plate close to the second arc plate, a plurality of second threaded holes are formed on one side of the second arc plate close to the first arc plate, external threads are formed on both ends of the push rod, and the two ends of the push rod are respectively threadedly matched with the inner wall of the first threaded hole and the inner wall of the second threaded hole.

10. A plate heat exchanger installation system, characterized in that: The plate heat exchanger installation system comprises: a control module, a solenoid valve, a compressor and a plate heat exchanger installation device according to any one of claims 1 to 9; The airbag is connected to the solenoid valve through the first hole, the solenoid valve is connected to the compressor, and the compressor inflates or deflates the airbag through the solenoid valve; The control module is connected to the solenoid valve and the compressor signals at the same time to control the solenoid valve and the compressor to open or close.

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