Energy-saving aluminum foil plate heat exchanger with self-expansion adjusting mechanism

Abstract

The present application relates to the field of plate heat exchanger, especially to an energy-saving aluminum foil plate heat exchanger with self-expanding adjusting mechanism, and extends heat exchange group, characterized in that the heat exchange group is installed inside the plate heat exchanger body, and includes heat exchange sheet group one and heat exchange sheet group two which are connected by a partition plate to form a whole, and the heat exchange sheet group one is provided with a butt joint on one side to output and input medium. In the present application, when the extension heat exchange group is connected with the main heat exchange sheet group, the excess air in the extension group can be discharged through the internal floating ball, and after the air is discharged, the valve plate driven by the fluid kinetic energy of the impeller is opened through the connecting rod mechanism cooperating with the toothed clutch mechanism, so that the rapid connection, exhaust and continuous operation of the extension group are realized, and the extension installation mode without human intervention is effectively improved, and the heat exchange efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of plate heat exchanger technology, and in particular to an energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism. Background Technology

[0002] Plate heat exchangers are high-efficiency heat exchange devices made of corrugated metal plates stacked together. These heat exchange plates are sealed with gaskets and, when stacked, form a complex mesh flow channel. The cold and hot media flow in opposite directions in the adjacent plate channels, and the heat is fully exchanged through the thin plate walls. Among them, aluminum foil plate heat exchangers use aluminum alloy thin plates as heat exchange elements. They inherit the advantages of high-efficiency heat transfer of traditional plate heat exchangers, while taking advantage of the high thermal conductivity, light weight and relatively low cost of aluminum.

[0003] In traditional applications, the common method to improve heat exchange capacity is to increase the number of heat exchange plates. However, in traditional equipment, this operation must be carried out manually after the equipment is completely shut down. The process is cumbersome, time-consuming, and labor-intensive, and the heat exchange efficiency cannot be guaranteed. Therefore, there is an urgent need for an energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism includes an extended heat exchange group. The extended heat exchange group is characterized in that it is installed inside the plate heat exchanger body and includes a heat exchange plate group one and a heat exchange plate group two connected by partitions. The heat exchange plate group one has a docking joint on one side for outputting and inputting medium.

[0007] The middle side of the docking joint is provided with an impeller drive rod on which an impeller is installed, and a valve plate is provided on the side away from the impeller drive rod by a synchronizing rod. The valve plate is used to realize the opening and closing of the upper and lower medium channels.

[0008] The top of the synchronizing rod is movably sleeved with a support shaft, the top of the support shaft is rotatably installed inside the slide cylinder, the slide cylinder is connected to the sleeve through an air inlet pipe, and a float ball is movably sleeved at the bottom of the sleeve through a connecting block. The float ball is located in the docking joint channel, and a through hole is opened in the middle of the float ball to allow gas to flow. The exhaust channel is composed of the float ball, the air inlet pipe, the slide cylinder, and the synchronizing rod.

[0009] A transmission friction wheel is installed in the middle of the support shaft through a sliding keyway, and a main friction wheel is provided on the side away from the transmission friction wheel. The main friction wheel is coaxially installed with the impeller drive rod to transmit the rotational kinetic energy of the impeller.

[0010] The bottom end of the support shaft is provided with an active toothed disc, and the top of the synchronizing rod below the active toothed disc is equipped with a passive toothed disc. The passive toothed disc and the active toothed disc form a toothed clutch mechanism.

[0011] Preferably, the partition is equipped with multiple electric ball valves in the middle to control the flow of media between heat exchanger group one and heat exchanger group two. Under normal operating conditions, the electric ball valves remain closed.

[0012] Preferably, the plate heat exchanger body includes a frame, which serves as an installation carrier and has a main heat exchanger plate group and an extended heat exchanger group installed in the middle. Under normal operating conditions, there is a working gap between the main heat exchanger plate group and the extended heat exchanger group, and multiple extension joints are provided on the side of the main heat exchanger plate group facing the extended heat exchanger group. Each extension joint is installed on the corresponding input and output port of the main heat exchanger plate group.

[0013] Preferably, a sealing cover is installed inside the expansion joint, and an installation rod is horizontally installed in the middle of the sealing cover. One end of the installation rod extends out of the expansion joint and is connected to a pressure ring. The pressure ring and the expansion joint are connected by a spring.

[0014] Preferably, one side of the pressure ring is provided with multiple limiting rods, which are simultaneously inserted into the slots opened on the outer wall of the expansion joint.

[0015] Preferably, the synchronizing rod is installed in the middle of the docking joint by a torsion spring, and the valve plate is tightly closed at the corresponding channel by the spring preload. The top of the synchronizing rod is movably sleeved with a support shaft, and the torsion spring twists when the synchronizing rod rotates.

[0016] Preferably, each of the mating joints is provided with a valve plate at its internal center position, and a sealing pressure ring is installed on one outer edge of the valve plate. The outer tip of the sealing pressure ring is pressed against the inner wall of the mating joint to achieve a compression seal.

[0017] Preferably, a float is installed on the top of the inner side of the channel of the docking joint. The float is hollow and has multiple through holes in the lower hemisphere to connect to the interior. A connecting block is installed at the middle of the top of the float. The connecting block extends upward and into the interior of the docking joint. A sleeve is installed at the top of the interior of the docking joint. The sleeve and the docking joint are connected by a spring triple connection.

[0018] The top of the sleeve is connected to the air inlet pipe, and the bottom of the sleeve is movably inserted into the connecting block. A hydrophobic and breathable membrane is provided at the bottom of the sleeve to allow gas to pass through.

[0019] Preferably, a pair of auxiliary connecting rods are installed on the section of the connecting block that extends into the docking joint. One end of each auxiliary connecting rod is rotatably mounted with a connecting rod 1, and the other end of the connecting rod 1 is rotatably mounted inside the docking joint. A sector gear is provided at one end of each connecting rod 1. A transmission gear is connected to one side of the sector gear through an idler gear. The transmission gear is fixedly mounted on a connecting rod 2. One end of the connecting rod 2 used to mount the transmission gear is rotatably mounted inside the docking joint, and the other end of the connecting rod 2 is sleeved on a limiting pin provided on the outer wall of the slide cylinder through a sliding groove. The slide cylinder and the synchronizing rod are coaxially arranged.

[0020] Preferably, an impeller is installed in the middle of the impeller drive rod, and the top and bottom ends of the impeller drive rod are rotatably connected to the slider. The slider is limited and installed in the slot opened in the inner wall of the docking joint. A top block is installed at the top of the impeller drive rod. The top block is installed in the mounting slot opened at the top of the docking joint. One side of the inner wall of the mounting slot is connected to the top block by a spring. One end of the top block extends out of the slot for docking with the expansion joint.

[0021] The top of the impeller drive rod passes through the top block and is fixedly mounted with a main friction wheel. A transmission friction wheel is mounted on the side away from the main friction wheel. A support shaft is connected to the middle of the transmission friction wheel through a sliding keyway.

[0022] The beneficial effects of this invention are as follows:

[0023] In this invention, when the extended heat exchange unit is docked with the main heat exchange plate group, the excess air in the extended unit can be discharged through the internal float ball. After the air is discharged, the fluid kinetic energy transmitted by the impeller is driven by the linkage mechanism and the jaw clutch mechanism to open the valve plate, so as to realize the rapid docking, venting and continuous operation of the extended unit. This extended installation method without human intervention effectively improves the heat exchange efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the external structure of an energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism proposed in this invention.

[0025] Figure 2 This is a schematic diagram of the main heat exchanger assembly structure proposed in this invention;

[0026] Figure 3 This is a schematic diagram of the extended heat exchanger structure proposed in this invention;

[0027] Figure 4 This is a schematic diagram of the docking structure of the main heat exchanger assembly and the extended heat exchanger assembly proposed in this invention;

[0028] Figure 5 This is a schematic diagram of the expansion joint structure proposed in this invention;

[0029] Figure 6This is a schematic diagram of the connection structure of the extended joint and extended heat exchanger group proposed in this invention. Figure 1 ;

[0030] Figure 7 This is a schematic diagram of the connection structure of the extended joint and extended heat exchanger group proposed in this invention. Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the integrated structure of the synchronizing rod and valve plate proposed in this invention;

[0032] Figure 9 This is a schematic diagram of the internal structure of the mating joint proposed in this invention;

[0033] Figure 10 This is a schematic diagram of the float connection structure proposed in this invention;

[0034] Figure 11 This is a schematic diagram of the transmission friction wheel connection structure proposed in this invention;

[0035] Figure 12 This is a schematic diagram of the synchronizing rod connection structure proposed in this invention;

[0036] Figure 13 This is a cross-sectional view of the internal structure of the butt joint proposed in this invention;

[0037] Figure 14 This is a schematic diagram of the valve plate structure proposed in this invention.

[0038] In the diagram: 1. Frame; 2. Cold water pipe; 3. Hot water pipe; 4. Extended heat exchanger assembly; 41. Butt joint; 42. Heat exchanger fin assembly one; 43. Partition plate; 44. Heat exchanger fin assembly two; 5. Cylinder; 6. Movable clamping plate; 7. Main heat exchanger fin assembly; 8. Extended joint; 81. Sealing cap; 82. Pressure ring; 83. Spring one; 84. Mounting rod; 85. Limiting rod; 9. Guide rod; 10. Electric ball valve; 11. Synchronizing rod; 111. Torsion spring; 12. Valve plate one; 13. Float; 131. Hydrophobic and breathable membrane; 14. Sealing pressure ring; 15. Impeller drive rod ; 151. Top block; 152. Main friction wheel; 153. Slider; 16. Mounting slot; 161. Spring 2; 17. Transmission friction wheel; 18. Connecting rod 1; 181. Idler gear; 182. Connecting rod 2; 19. Air inlet pipe; 191. Sleeve; 20. Slide cylinder; 201. Limiting pin; 21. Air outlet; 22. Secondary connecting rod; 23. Sector gear; 24. Slide groove; 25. Active crank; 26. Passive crank; 27. Exhaust pipe; 28. Support shaft; 29. ​​Temperature sensor; 30. Connecting block; 31. Transmission gear; 33. Impeller. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Reference Figures 1-7 An energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism includes a frame 1, which serves as an installation carrier and has a main heat exchange plate group 7 and an extended heat exchange group 4 installed in the middle.

[0041] Under normal operating conditions, there is a working gap between the main heat exchanger assembly 7 and the extended heat exchanger assembly 4, and multiple expansion joints 8 are provided on the side of the main heat exchanger assembly 7 facing the extended heat exchanger assembly 4. Each expansion joint 8 is installed on the corresponding input or output port of the main heat exchanger assembly 7.

[0042] Furthermore, the expansion joint 8 is tapered and has a sealing cap 81 installed inside the joint. The sealing cap 81 is pressed against the inner wall of the expansion joint 8 to form a compression seal to prevent the flow of medium. An installation rod 84 is horizontally installed in the middle of the sealing cap 81. One end of the installation rod 84 extends out of the expansion joint 8 and is connected to a pressure ring 82. The pressure ring 82 has a groove for the flow of medium in the middle. The pressure ring 82 is connected to the expansion joint 8 by a spring 83. Multiple limiting rods 85 are provided on one side of the pressure ring 82 and are simultaneously inserted into the slots opened on the outer wall of the expansion joint 8. The limiting rods 85 cooperate with the slots to constrain the pressure ring 82, causing the pressure ring 82 to produce a linear horizontal displacement when it is squeezed.

[0043] In addition, multiple guide rods 9 are installed on both sides of the frame 1 to constrain and limit the sides of the main heat exchanger assembly 7 and the extended heat exchanger assembly 4.

[0044] Furthermore, a cold water pipe 2 and a hot water pipe 3 are provided on one side of the frame 1, and both the cold water pipe 2 and the hot water pipe 3 are internally circulated and connected to the main heat exchanger assembly 7.

[0045] The cold water pipe 2 includes a bottom inlet pipe and a top outlet pipe to achieve the circulation of low-temperature medium, and the hot water pipe 3 includes a top inlet pipe and a bottom outlet pipe to achieve the circulation of high-temperature medium. The plate heat exchanger body is composed of the frame 1, the cold water pipe 2, the hot water pipe 3, and the main heat exchange plate group 7.

[0046] Furthermore, a cylinder 5 is fixedly installed on the top of the frame 1. The telescopic end of the cylinder 5 is connected to the movable clamping plate 6. The movable clamping plate 6 is loaded with an extended heat exchange unit 4. The cylinder 5 telescopically moves the movable clamping plate 6 and the extended heat exchange unit 4 as a whole.

[0047] Furthermore, cylinder 5 is electrically connected to temperature sensor 29 via an external control mechanism;

[0048] Furthermore, each cold water pipe 2 and hot water pipe 3 is equipped with a temperature sensor 29 at its output pipe to monitor the medium flowing inside the pipe, and the temperature sensor 29 is electrically connected to the cylinder 5 through an external control mechanism.

[0049] Reference Figures 7-13 The extended heat exchange group 4 includes heat exchange plate group 1 42 and heat exchange plate group 2 44 connected to each other by partition 43. The partition 43 has an output and input port in the middle that communicates with heat exchange plate group 1 42 and heat exchange plate group 2 44. An electric ball valve 10 is installed at each output and input port. Under normal operating conditions, the electric ball valve 10 is in the closed state, that is, heat exchange plate group 1 42 and heat exchange plate group 2 44 are not connected to each other.

[0050] The electric ball valve 10 is electrically connected to the temperature sensor 29 via an external control mechanism.

[0051] Furthermore, on one side of heat exchanger assembly 42, there are medium interfaces corresponding to the positions of cold water pipe 2 and hot water pipe 3. The cold source port adopts a bottom inlet and top outlet layout (bottom inlet and top outlet), and the heat source port adopts a top inlet and bottom outlet layout (top inlet and bottom outlet). This is in line with the conventional structure of plate heat exchangers, and will not be explained further.

[0052] Each cold and heat source port is equipped with a docking connector 41.

[0053] The mating joint 41 is used to connect with the expansion joint 8. The outer wall of the expansion joint 8 is provided with a sealing ring to ensure the sealing performance when it is plugged into the mating joint 41. The use of a sealing component (sealing ring) to ensure the normal operation of the equipment is a conventional technical means in the field and is common knowledge to those skilled in the art, so it will not be explained further.

[0054] Each mating joint 41 has a valve plate 12 at its internal center. A sealing ring 14 is installed on one outer edge of the valve plate 12. The sealing ring 14 has a tapered cross section, and the outer tip of the sealing ring 14 is pressed against the inner wall of the mating joint 41 to achieve a compression seal.

[0055] The adjacent valve plates 12, which are in an upper and lower position relationship, are connected as a whole by a synchronizing rod 11. The synchronizing rod 11 is rotatably installed inside the docking joint 41 through a bearing component, and a torsion spring 111 is installed at the rotatable connection between the synchronizing rod 11 and the docking joint 41. When the synchronizing rod 11 rotates, the torsion spring 111 twists to generate torsional force.

[0056] Under natural working conditions, the torsion spring 111 drives the synchronous rod 11 to move through the preload, and the synchronous rod 11 synchronously drives the upper and lower valve plates 12 to close synchronously in the middle channel of the docking joint 41, thereby blocking the channel.

[0057] Furthermore, on the inner side of the channel of the docking joint 41 located at the top, a float 13 is installed at the top. The float 13 is hollow and has multiple through holes in the lower hemisphere to connect to the interior.

[0058] A connecting block 30 is installed at the top center of the float 13. The connecting block 30 extends upward and into the interior of the docking joint 41. A sleeve 191 is installed at the top of the interior of the docking joint 41. The sleeve 191 and the docking joint 41 are connected by a spring triple connection. One end of the sleeve 191 is directly installed inside the docking joint 41 by fixing, thereby fixing the position of the sleeve 191.

[0059] The top of the sleeve 191 is connected to the air inlet pipe 19, and the bottom of the sleeve 191 is movably inserted into the connecting block 30. A hydrophobic and breathable membrane 131 is provided at the bottom of the sleeve 191 to allow gas to pass through.

[0060] The other end of the air inlet pipe 19 is connected to the top of the slide cylinder 20. The slide cylinder 20 is vertically installed on the inside side of the docking joint 41 and is coaxially arranged with the synchronizing rod 11. The bottom of the slide cylinder 20 is rotatably mounted with a support shaft 28 through a bearing component. The middle part of the support shaft 28 is fitted with a transmission friction wheel 17 through a sliding keyway. The bottom end of the support shaft 28 extends downward and is movably inserted into the top of the synchronizing rod 11.

[0061] The top of the mating joint 41 is provided with a slot for installing a float 13. The float 13 can achieve a certain displacement within the slot, and due to the radial constraint of the connecting block 30 and the sleeve 191, the float 13 can achieve vertical linear movement.

[0062] In addition, a through hole is opened in the middle of the float 13 for gas to pass through.

[0063] Furthermore, the synchronous rod 11 is hollow inside and has a through hole on one side of the middle part of the rod body. An exhaust pipe 27 is connected to the through hole. The exhaust pipe 27 is connected to the air outlet 21 on the outside of the docking joint 41. The gas is discharged to the outside through the float 13, the air inlet pipe 19, and the synchronous rod 11.

[0064] Furthermore, a pair of auxiliary connecting rods 22 are installed on a section of the connecting block 30 that extends into the mating joint 41. A connecting rod 18 is rotatably installed at one end of each auxiliary connecting rod 22, and the other end of the connecting rod 18 is rotatably installed inside the mating joint 41 via a pin. The connecting rod 18 moves with the auxiliary connecting rod 22, and a sector gear 23 is provided at one end of each connecting rod 18. A transmission gear 31 is meshed with one side of the sector gear 23 via an idler gear 181. The transmission gear 31 is fixedly installed on the connecting rod 282.

[0065] One end of the connecting rod 182, which is used to install the transmission gear 31, is rotatably installed inside the docking joint 41 via a pin, and the other end of the connecting rod 182 is sleeved on the limiting pin 201 provided on the outer wall of the slide cylinder 20 via a slide groove 24. The limiting pin 201 can slide within the slide groove 24.

[0066] The sector gear 23 is meshed with the idler gear 181, and the idler gear 181 is meshed with the transmission gear 31.

[0067] Among them, the two connecting rods 18 are located on the side of the air inlet pipe 19.

[0068] Furthermore, an impeller drive rod 15 is vertically installed at the inlet of the docking joint 41, and an impeller 33 is installed in the middle of the impeller drive rod 15. The top and bottom ends of the impeller drive rod 15 are rotatably connected to the slider 153. The slider 153 is limited and installed in the slot opened in the inner wall of the docking joint 41, and achieves horizontal displacement in the slot.

[0069] Furthermore, a top block 151 is installed at the top of the impeller drive rod 15. The top block 151 is installed in the mounting groove 16 opened at the top of the docking joint 41. One side of the inner wall of the mounting groove 16 is connected to the top block 151 by a spring 161. One end of the top block 151 extends out of the groove to dock with the expansion joint 8. When the top block 151 is pressed by the expansion joint 8, it generates a horizontal displacement in the mounting groove 16.

[0070] Among them, the top end of the impeller drive rod 15 passes through the top block 151 and is fixedly installed with the main friction wheel 152. The transmission friction wheel 17 is installed on the side away from the main friction wheel 152. The middle part of the transmission friction wheel 17 is connected to the support shaft 28 through the sliding keyway. The support shaft 28 can achieve a certain degree of mechanical axial sliding displacement inside the transmission friction wheel 17.

[0071] In addition, the top of the support shaft 28 is rotatably connected to the inner wall of the slide cylinder 20, and the bottom passes through the transmission friction wheel 17 and is movably sleeved inside the synchronizing rod 11. The bottom end of the support shaft 28 is provided with an active toothed plate 25, and the bottom of the active toothed plate 25 is provided with a passive toothed plate 26. The passive toothed plate 26 and the active toothed plate 25 constitute a tooth clutch mechanism.

[0072] In this embodiment, the temperature sensor 29 installed at the cold water pipe 2 and the hot water pipe 3 detects the temperature inside the pipe. When the temperature of the target medium does not meet the specified process requirements, the temperature sensor 29 triggers the cylinder 5 to operate and retract through an external control mechanism (which can be a PLC control mechanism). The telescopic rod of the cylinder 5 retracts and simultaneously drives the movable clamp 6 and the extended heat exchange group 4 on it to move.

[0073] Among them, the movable clamping plate 6 and the extended heat exchange group 4 are displaced together on the guide rods 9 on both sides of the frame 1.

[0074] Next, the extended heat exchange unit 4, after displacement, will have its docking joint 41 docking with the main heat exchange fin group 7 of the heat exchanger itself. The main heat exchange fin group 7 has an extension joint 8 on one side specifically for matching the docking joint 41. After the two are docked, the pressure ring 82 on one side of the extension joint 8 will press against the top block 151 inside the docking joint 41. The top block 151 will move backward synchronously with the impeller drive rod 15. At this time, the top block 151 will be fully embedded in the corresponding mounting groove 16.

[0075] At this time, the pressure ring 82 is pushed against the inner wall of the butt joint 41 and moves in the opposite direction, and simultaneously opens the sealing cover 81 pressed against the inner wall of the expansion joint 8. After the sealing cover 81 is opened, the medium in the main heat exchanger assembly 7 will enter the butt joint 41 from the expansion joint 8.

[0076] The medium enters the docking joint 41 from the expansion joint 8. At this time, the medium will contact the impeller 33 and drive it to rotate while flowing towards the valve plate 12. Then the medium will squeeze into the sealing ring 14 on the outer side of the valve plate 12 until it pushes open the sealing ring 14 and enters the heat exchange plate group 42. Since the flow area provided by the sealing ring 14 is small, the overall flow rate is relatively slow.

[0077] At this time, because the sealing ring 14 is restricted by the inner wall of the docking joint 41, the gas cannot escape from the inside to the outside. The continuously entering medium will occupy the internal cavity of the heat exchange plate group 42 and push the air inside upward. At this time, the air will enter the air inlet pipe 19, slide cylinder 20, support shaft 28, and synchronizing rod 11 through the through hole in the middle of the float ball 13, and the gas will be officially discharged from the air outlet 21 on the outside of the docking joint 41 by the exhaust pipe 27 in the middle of the synchronizing rod 11.

[0078] Until the medium fills the internal cavity of heat exchanger assembly 42, the gas is gradually discharged from the top. When the medium reaches the corresponding amount, that is, when the medium contacts the float 13, the medium's driving force will drive the float 13 upward compared to the air. The float 13 will be displaced relative to the sleeve 191 and compress the spring 3 for subsequent reset.

[0079] When the float 13 rises under the action of the fluid, it drives a pair of auxiliary connecting rods 22 to rise synchronously. The auxiliary connecting rods 22 drive the connecting rod 18 to rotate through the hinge point, converting the vertical displacement of the float into an angular change of the connecting rod mechanism. The sector gear 23 at the end of the connecting rod 18 rotates accordingly and drives the idler gear 181 to rotate through tooth surface meshing, thereby driving the connecting rod 282 equipped with the transmission gear 31 to move. The connecting rod 282 converts the rotational motion into the vertical downward displacement of the slide cylinder 20 through the cooperation of the sliding groove 24 at its end and the limiting pin 201. Finally, the support shaft 28 at the bottom of the slide cylinder 20 moves down synchronously with the active toothed disc 25, and completes the toothed engagement with the passive toothed disc 26 at the top of the synchronous rod 11, realizing a rigid connection of the power transmission path.

[0080] As the top block 151 initially moves, it causes the impeller drive rod 15 and the main friction wheel 152 to move backward, so that the main friction wheel 152 contacts the transmission friction wheel 17 mounted on the support shaft 28 and achieves transmission through friction. At this time, the driving force generated by the impeller 33 rotating with the fluid cannot be directly transmitted to the synchronizing rod 11. However, as the active toothed plate 25 and the passive toothed plate 26 are connected, the transmission friction wheel 17 transmits power to the synchronizing rod 11, causing it to deflect so as to open the valve plate 12 as a whole.

[0081] At this time, as the medium in heat exchanger assembly 42 gradually fills up and most of the air is discharged, valve plate 12 will increase the flow channel after opening, and the medium will return to normal working condition.

[0082] If the expanded temperature still cannot reach the specified working temperature, the temperature sensor 29 will still drive the electric ball valve 10 installed between heat exchanger group 1 42 and heat exchanger group 2 44 to open through the external control mechanism.

[0083] The electric ball valve 10 is specifically a valve body in which the valve stem is controlled by a motor to realize the opening and closing of the ball valve. It can be directly purchased and used on the market, and the specific principle will not be explained further.

[0084] Next, after the electric ball valve 10 is opened, it will perform the exhaust operation again. At this time, the medium cannot contact the float 13, so it cannot drive the valve plate 12 to continue to maintain the open state. That is, the active toothed plate 25 disengages from the passive toothed plate 26. Under the action of the torsion spring 111, the synchronizing rod 11 drives the upper and lower valve plates 12 to close and maintain the medium flow at a low speed to ensure the stability of air exhaust.

[0085] During this process, the temperature sensor 29 drives the extended heat exchange unit 4 to automatically dock, actively expel the air inside and smoothly introduce the medium.

[0086] Among them, heat exchanger group 1 42 and heat exchanger group 2 44 are composed of multiple heat exchanger groups, and each heat exchanger group can be a group of 20 or 30 pieces.

[0087] In this process, the corresponding medium is introduced into the main heat exchange plate group 7 through the cold water pipe 2 and the hot water pipe 3 in sequence to achieve circulating heat exchange. An expansion joint 8 with a sealing cover 81 is provided on one side of the main heat exchange plate group 7. The fluid applies pressure to the sealing cover 81 and ensures the sealing stability of the sealing cover 81. The fluid flows back here. The specific medium flow direction and heat exchange principle of the plate heat exchanger are common knowledge to those skilled in the art and will not be explained further.

[0088] The installation, model, and principle of the seals not explained in detail above are all standard configurations in this field. Using sealing components to ensure the basic operation of the equipment is a standard technical means in this field and will not be explained further.

[0089] In addition, it should be noted that changes in the orientation of the input and output interfaces of cold water pipe 2 and hot water pipe 3 will not affect the normal operation of the linkage control mechanism such as valve plate 12 and float 13. In the closed pipe space, the gas is always located above the fluid due to the density difference. This physical characteristic ensures that the float mechanism can accurately trigger the corresponding control action according to the medium state.

[0090] It should be noted that the specific operating principle of the plate heat exchanger body and the structure of its heat exchange plates are common knowledge to those skilled in the art and will not be explained further; and the internal components and operating principles of the plate heat exchanger not described in detail above are all basic structures and conventional configurations of the plate heat exchanger.

[0091] The basic structure, operating principle, connection method with cylinder 5, and specific excitation logic of temperature sensor 29 are all conventional electronic control technologies in this field and are common knowledge to those skilled in the art, and will not be explained further.

[0092] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism, comprising an extended heat exchange assembly (4), characterized in that, The extended heat exchange group (4) is installed inside the plate heat exchanger body and includes a heat exchange plate group one (42) and a heat exchange plate group two (44) connected together by partitions (43). A docking joint (41) is provided on one side of the heat exchange plate group one (42) to output and input the medium. The middle side of the docking joint (41) is provided with an impeller drive rod (15) on which an impeller (33) is installed, and a valve plate (12) is provided on the side away from the impeller drive rod (15) by a synchronizing rod (11). The valve plate (12) is used to realize the opening and closing of the upper and lower medium channels. The top of the synchronizing rod (11) is movably sleeved with a support shaft (28), the top of the support shaft (28) is rotatably installed inside the slide cylinder (20), the slide cylinder (20) is connected to the sleeve (191) through the air inlet pipe (19), the bottom of the sleeve (191) is movably sleeved with a float (13) through the connecting block (30), the float (13) is located in the channel of the docking joint (41), and a through hole is opened in the middle of the float (13) to allow gas to flow. The float (13), the air inlet pipe (19), the slide cylinder (20) and the synchronizing rod (11) form an exhaust channel. The support shaft (28) has a transmission friction wheel (17) installed in the middle through a sliding keyway. A main friction wheel (152) is provided on the side away from the transmission friction wheel (17). The main friction wheel (152) is coaxially installed with the impeller drive rod (15) to transmit the rotational kinetic energy of the impeller. The bottom end of the support shaft (28) is provided with an active toothed plate (25), and the top end of the synchronizing rod (11) below the active toothed plate (25) is equipped with a passive toothed plate (26). The passive toothed plate (26) and the active toothed plate (25) constitute a tooth clutch mechanism. The plate heat exchanger body includes a frame (1), which serves as an installation carrier and has a main heat exchange plate group (7) and an extended heat exchange group (4) installed in the middle. Under normal operating conditions, there is a working gap between the main heat exchange plate group (7) and the extended heat exchange group (4), and multiple expansion joints (8) are provided on the side of the main heat exchange plate group (7) facing the extended heat exchange group (4). Each expansion joint (8) is installed on the corresponding input and output ports of the main heat exchange plate group (7). The expansion joint (8) is equipped with a sealing cover (81) inside. A mounting rod (84) is horizontally installed in the middle of the sealing cover (81). One end of the mounting rod (84) extends out of the expansion joint (8) and is connected to a pressure ring (82). The pressure ring (82) and the expansion joint (8) are connected by a spring (83). The synchronizing rod (11) is installed in the middle of the docking joint (41) by a torsion spring (111), and the valve plate (12) is tightly closed at the corresponding channel by the spring preload. The top of the synchronizing rod (11) is movably sleeved with a support shaft (28). When the synchronizing rod (11) rotates, the torsion spring (111) twists. A float (13) is installed on the top of the inner side of the channel of the docking joint (41). The float (13) is hollow and has multiple through holes in the lower hemisphere to connect to the interior. A connecting block (30) is installed at the middle of the top of the float (13). The connecting block (30) extends upward and into the interior of the docking joint (41). A sleeve (191) is installed at the top of the interior of the docking joint (41). The sleeve (191) and the docking joint (41) are connected by a spring. The top of the sleeve (191) is connected to the air inlet pipe (19), and the bottom of the sleeve (191) is movably inserted into the connecting block (30). A hydrophobic and breathable membrane (131) is provided at the bottom of the sleeve (191) to allow gas to pass through.

2. The energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism according to claim 1, characterized in that, The partition (43) is equipped with multiple electric ball valves (10) in the middle, which are used to control the flow of media between heat exchanger group one (42) and heat exchanger group two (44). Under normal operating conditions, the electric ball valves (10) remain closed.

3. The energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism according to claim 1, characterized in that, The pressure ring (82) has multiple limiting rods (85) on one side, which are simultaneously inserted into the slots opened on the outer wall of the expansion joint (8).

4. An energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism according to claim 1, characterized in that, Each of the said mating joints (41) is provided with a valve plate (12) at its internal center position. A sealing pressure ring (14) is installed on one side of the outer edge of the valve plate (12). The outer tip of the sealing pressure ring (14) is pressed against the inner wall of the mating joint (41) to achieve a compression seal.

5. An energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism according to claim 1, characterized in that, A pair of auxiliary connecting rods (22) are installed on a section of the connecting block (30) that extends into the docking joint (41). A connecting rod (18) is rotatably installed on one end of each auxiliary connecting rod (22), and the other end of the connecting rod (18) is rotatably installed inside the docking joint (41). A sector gear (23) is provided at one end of each connecting rod (18). A transmission gear (31) is meshed with one side of the sector gear (23) through an idler gear (181). The transmission gear (31) is fixedly installed on the connecting rod (282). The end of the connecting rod (282) used to install the transmission gear (31) is rotatably installed inside the docking joint (41), and the other end of the connecting rod (282) is sleeved on the limiting pin (201) provided on the outer wall of the slide cylinder (20) through the slide groove (24). The slide cylinder (20) is coaxially arranged with the synchronizing rod (11).

6. An energy-saving aluminum foil plate heat exchanger with a self-expanding adjustment mechanism according to claim 1, characterized in that, An impeller (33) is installed in the middle of the impeller drive rod (15). The top and bottom ends of the impeller drive rod (15) are rotatably connected to the slider (153). The slider (153) is limited and installed in the slot opened in the inner wall of the docking joint (41). A top block (151) is installed at the top of the impeller drive rod (15). The top block (151) is installed in the mounting groove (16) opened at the top of the docking joint (41). One side of the inner wall of the mounting groove (16) is connected to the top block (151) through a spring (161). One end of the top block (151) extends out of the slot for docking with the expansion joint (8). The top end of the impeller drive rod (15) passes through the top block (151) and is fixedly installed with the main friction wheel (152). A transmission friction wheel (17) is installed on the side away from the main friction wheel (152). The middle part of the transmission friction wheel (17) is connected to the support shaft (28) through a sliding keyway.

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