Plate heat exchanger with built-in spiral channel for heat supply network

Abstract

The invention provides a plate heat exchanger with a built-in spiral channel for a heat supply pipe network, and relates to the technical field of plate heat exchangers. Comprising a lower box body, and cleaning liquid is stored in the lower box body; the clamping assembly comprises a main frame body, a supporting rod, a first clamping plate, a second clamping plate, a top guide rod and a side guide plate; the heat exchange plates are sequentially and positively overlapped between the first clamping plate and the second clamping plate, and the adjacent heat exchange plates are in sealed fit; the cover plate covers the tops of the multiple groups of heat exchange plates in a sealing manner; an evacuation assembly; a composite cleaning assembly; according to the invention, the single heat exchange plate can be replaced, so that the replacement operation is simpler and more convenient; and the evacuation assembly is arranged, so that all the heat exchange plates can be automatically pushed aside, the heat exchange plates are automatically separated during cleaning, manual one-by-one separation is not needed, and preparation is made for follow-up overhauling and cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of plate heat exchangers, and in particular to a plate heat exchanger with a built-in spiral channel for a heating pipe network. Background Art

[0002] The heating network is a pipe network system used to transport heat energy in a centralized heating system. It is mainly composed of heat sources (such as thermal power plants, boiler rooms, etc.), heating pipes, heat exchange stations, and heat users (such as residential buildings, commercial buildings, etc.); plate heat exchangers are widely used in heating networks. Plate heat exchangers are mainly composed of a group of stacked metal plates with corrugated shapes. These plates are usually made of very thin stainless steel plates and other materials. Adjacent plates are sealed with gaskets to form many narrow channels. The corrugated design on the plates can increase the turbulence of the fluid and improve the heat exchange efficiency;

[0003] The current plate heat exchanger has the following deficiencies in heat exchange work:

[0004] 1. During assembly and disassembly, it is necessary to remove the nuts at both ends, and then remove the screws to separate the heat exchange plates. Only in this way can the heat exchange plates be inspected one by one, and assembly and disassembly are cumbersome;

[0005] 2. In order to ensure the heat exchange efficiency, it is necessary to regularly clean the impurities on the side of the heat exchange plate. During cleaning, workers need to dismantle and move it outside for cleaning. The reciprocating transportation operation is troublesome and the plate is easy to bump. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a plate heat exchanger with a built-in spiral channel for a heating pipe network, which solves the problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A plate heat exchanger with a built-in spiral channel for a heating pipe network, comprising a lower box body, in which a cleaning liquid is stored;

[0009] The clamping assembly comprises a main frame, a support rod, a first clamping plate, a second clamping plate, a top guide rod and a side guide plate, the main frame is arranged parallel to the top of the lower box body, and top guide rods are symmetrically arranged on both sides of the interior of the main frame, and a support rod is vertically arranged on the bottom surface of one end of the top guide rod; the top two corners of the first clamping plate are slidably mounted on the outer walls of the two groups of top guide rods, and the top two corners of the second clamping plate are fixedly mounted on the outer walls of the two groups of top guide rods, the first clamping plate and the second clamping plate are distributed at intervals, a longitudinal plate is arranged between the support rods at the same end, a first driving rod is vertically arranged in the middle of the inner wall of the longitudinal plate, the output end of the first driving rod is connected to the first clamping plate, a water supply pipe is arranged at the top corner of the outer wall of the first clamping plate, and a drainage pipe is arranged at the bottom corner of the outer wall of the second clamping plate; one end of the side guide plate is vertically fixedly connected to the support rod, and the other end is vertically fixedly connected to the second clamping plate, the side guide plate slides through the first clamping plate and the second clamping plate, and multiple groups of side positioning components are slidably installed inside the side guide plate;

[0010] The heat exchange plate is sequentially overlapped between the first clamping plate and the second clamping plate, the adjacent heat exchange plates are sealed and fitted, the side of the heat exchange plate is clamped with the side positioning component, the top corner of the heat exchange plate is provided with a first liquid guide hole, the bottom corner is provided with a second liquid guide hole, and the side wall of the heat exchange plate is provided with liquid blocking protrusions; a middle partition bar is provided in the middle of the interior of the heat exchange plate, one side of the middle partition bar is the first liquid guide chamber, and the other side is the second liquid guide chamber, the top of the first liquid guide chamber and the second liquid guide chamber are open structures, a plurality of groups of first spiral channels are provided in the first liquid guide chamber, a plurality of groups of second spiral channels are provided in the second liquid guide chamber, and the bottom of the first liquid guide chamber and the bottom of the second liquid guide chamber are connected through a series channel;

[0011] A cover plate, which seals and covers the tops of the multiple groups of heat exchange plates, is installed between the first clamping plate and the second clamping plate, and one side of the surface of the cover plate is provided with multiple groups of heating medium supply pipes, and the other side of the surface is provided with multiple groups of heating medium discharge pipes, and the bottom of the heating medium supply pipe is connected to the first spiral channel or the second spiral channel;

[0012] The evacuation assembly is symmetrically installed on both sides of the top of the lower box. The evacuation assembly is used to automatically drive each group of heat exchange plates to separate when cleaning the heat exchange plates;

[0013] A composite cleaning assembly is installed above the clamping assembly; the composite cleaning assembly includes the following states: in the first state, the composite cleaning assembly is docked at the top of the heat exchange plate to back-blow clean the first spiral channel and the second spiral channel; in the second state, the heat exchange plates are separated, and the composite cleaning assembly extends between the two groups of heat exchange plates to scrub the sides of the heat exchange plates.

[0014] Furthermore, rubber rings are provided on both sides of the heat exchange plate, a rubber pad is provided on the top surface of the heat exchange plate, locking grooves are provided on the top and bottom of the side of the heat exchange plate, and a reserved groove is provided in the middle of the side of the heat exchange plate.

[0015] Furthermore, the side positioning component includes a slider, a sliding groove is opened inside the side guide plate, and multiple groups of sliders are embedded in the sliding groove for damping sliding. The internal elastic sliding of the slider passes through a locking plug plate, and a pull rod is provided at the outer end of the locking plug plate, and the locking plug plate is inserted into the locking groove.

[0016] Furthermore, sealing strips are provided on both sides of the cover plate, and assembly plates are vertically provided on both sides of the surface of the cover plate, and the assembly plates are assembled to the inner walls of the first clamping plate and the second clamping plate by screws.

[0017] Furthermore, the evacuation assembly includes a top frame body, which is arranged at one end of the top of the lower box body, and a first vertical plate is provided in the middle of the bottom surface of the top frame body, and a hanging plate is horizontally slidably installed on the bottom surface of the first vertical plate, and a second driving rod is provided on the side of the first vertical plate to drive the hanging plate to translate, and a transversely extending screw seat is provided on the bottom surface of the hanging plate, and a resistance piece is slidably installed inside the screw seat, and the side surface of the screw seat is connected to a transversely extending adjustment plate through the second vertical plate, and a translation groove is opened inside the adjustment plate, and multiple groups of connecting parts are slidably embedded inside the translation groove, and the connecting parts are inserted into the reserved grooves, and the resistance pieces are used to resist the movement of the connecting parts to drive the heat exchange plate to evacuate.

[0018] Furthermore, the interference member includes a suspension rod and an interference rod. The top of the suspension rod is slidably embedded in the screw seat. The bottom of the suspension rod is provided with an interference groove. A cylinder is vertically slidably installed inside the interference groove. A square is provided at the inner end of the cylinder. The bottom surface of the square is vertically provided with an interference rod. An adjustment groove is provided on the top of the side of the adjustment plate. The adjustment groove is composed of a flat groove and a semicircular groove connected in sequence. The semicircular groove protrudes upward. The bottom of the semicircular groove connects the two groups of flat grooves. The square is slidably embedded in the adjustment groove. The working steps of moving the interference member along the adjustment groove are as follows:

[0019] S1, the block moves along the flat groove, the abutment rod abuts against the translation of multiple sets of connecting parts, and then pushes multiple sets of heat exchange plates to translate;

[0020] S2, the block moves along the semicircular groove, and the abutment rod is lifted up and passes over the previous connecting piece and then abuts against the next connecting piece;

[0021] S3, the block moves along the next flat groove, the abutment rod abuts against the translation of the remaining multiple sets of connecting parts, and then pushes the translation of the remaining multiple sets of heat exchange plates.

[0022] Furthermore, the connecting piece includes an inner block, the outer wall of the inner block is provided with an outer matching rod, the inner wall is provided with an inner insertion rod, the outer matching rod is in matching contact with the abutment rod, and the inner insertion rod is inserted into the reserved groove.

[0023] Furthermore, the composite cleaning component includes a lower slider, which is slidably installed on both sides of the upper surface of the main frame, the tops of the two groups of lower sliders are connected to the gantry, the top surface of the gantry is symmetrical with two groups of transfer boxes, and the two joints on the top of the transfer box are respectively connected to the input pump and the output pump; a storage box is installed on the bottom surface of the gantry, and a stirring tube is rotatably installed on the bottom surface of the storage box, the top of the stirring tube passes through the storage box and extends into the transfer box, a driven gear is provided on the outer wall of the top end of the stirring tube, a driving gear rod for driving the driven gear to rotate is installed inside the storage box, and bristles are evenly embedded on the outer wall of the stirring tube; in the first state, the bottom end of the stirring tube is inserted into the first spiral channel and the top of the second spiral channel; in the second state, the stirring tube is inserted between adjacent heat exchange plates, the stirring tube rotates, and the bristles clean impurities on the sides of the heat exchange plates.

[0024] Furthermore, an upper tube body is rotatably installed at the inner center line of the stirring tube, and a positioning ring is provided on the outer wall of the top end of the upper tube body, which is rotatably embedded in the inner top end of the stirring tube, and a driven gear ring is provided on the top outer wall of the upper tube body, and a motor is provided on the side wall of the stirring tube, and the top end of the motor is connected to a driving gear, and a notch is provided on the side wall of the stirring tube for the driving gear to extend into, and the driving gear is meshed and connected to the driven gear ring; a U-shaped inner sealing plate is provided on the bottom surface of the upper tube body, a rectangular opening is provided at the bottom end of the stirring tube, and two rows of side through holes are symmetrically provided on the outer wall of the stirring tube; in the first state, the side portion of the inner sealing plate blocks the side through holes and the bottom of the inner sealing plate opens the rectangular opening in an offset manner; in the second state, the side portion of the inner sealing plate opens the side through holes in an offset manner and the bottom of the inner sealing plate blocks the rectangular opening, so that the impurities can be exhausted and impacted when the stirring tube is brushed.

[0025] Furthermore, a flushing assembly is provided at the inner top of the lower box body, and the flushing assembly includes a bracket, which is arranged at the center of the lower box body, and a flushing plate is vertically provided on the top surface of the bracket, and multiple groups of flushing heads are embedded in the surface of the flushing plate, and a filter frame is provided on the outer wall of the bracket, and a liquid pump is installed on the side wall of the bracket, and the output end of the liquid pump is connected to the flushing plate; in the second state, the liquid pump draws the liquid in the filter frame to the flushing plate, and the flushing plate sprays water upward to the side of the heat exchange plate.

[0026] The present invention provides a plate heat exchanger with a built-in spiral channel for a heating pipe network. Compared with the prior art, it has the following beneficial effects:

[0027] 1. The setting of the clamping assembly can achieve the following effects: each group of heat exchange plates is clamped and positioned by the first clamping plate and the second clamping plate, so that the heat exchange plates are closely overlapped to realize the heat exchange supply of water, and there is no need to use the traditional double-headed screw for penetration positioning, which can make the closing and disassembly of the heat exchange plate easier; the side positioning component in the side guide plate can position the heat exchange plate from the side, realize the side positioning of the heat exchange plate, and ensure that the heat exchange plate can still be fixed on the side guide plate when the heat exchange plate is not clamped, which is convenient for early installation and later maintenance; when the heat exchange plate needs to be removed, the side positioning component can be separated from the heat exchange plate, so that a single heat exchange plate can be replaced, making the replacement operation easier, and there is no need to remove the double-headed screw and dismantle all the heat exchange plates;

[0028] 2. The setting of the heat exchange plate can achieve the following effects: the side of the heat exchange plate is the hot water diversion area, and the water flows along the chambers between the heat exchange plates to achieve heat exchange heating and finally output to the user; each heat exchange plate is provided with a U-shaped medium flow channel inside, and the external heating medium (hot air, hot water) can enter through the spiral channel on one side, and then flow through the series channel below to the spiral channel on the other side, and then spirally move upward to be discharged. In this way, the heating path of the heating medium in the heat exchange plate is very long, the heat exchange is more sufficient, and the medium flow channel of the heat exchange plate is simple in design;

[0029] 3. The cover plate is designed to block the top opening of each heat exchange plate from above, so that the heating medium supply pipe and the heating medium discharge pipe can work normally and separately to ensure the circulation of the heating medium;

[0030] 4. The setting of the evacuation component can automatically push apart each heat exchange plate, so that the heat exchange plates can be automatically separated during cleaning, without the need for manual separation one by one, and also prepare for subsequent maintenance and cleaning;

[0031] 5. The setting of the composite cleaning component can firstly backwash the spiral channel to clean the heat exchange chamber inside the heat exchange plate, and then adjust it to between adjacent heat exchange plates. The composite cleaning component can scrub the heat exchange plate to quickly clean impurities.

[0032] 6. The scrubbing liquid flows back into the lower box, making the cleaning site cleaner, the cleaning process simpler and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1The schematic diagram of the structure of the plate heat exchanger of the present invention is shown;

[0035] Figure 2 It shows a schematic structural diagram of a state where a clamping assembly of the present invention clamps a heat exchange plate;

[0036] Figure 3 A schematic diagram of the heat exchange plate structure of the present invention is shown;

[0037] Figure 4 A schematic diagram of the internal cross-sectional structure of the heat exchange plate of the present invention is shown;

[0038] Figure 5 Shows Figure 4 A schematic diagram of the enlarged structure at point A;

[0039] Figure 6 A schematic diagram of the structure of the evacuation assembly of the present invention is shown;

[0040] Figure 7 Shows Figure 6 A schematic diagram of the enlarged structure at B;

[0041] Figure 8 A schematic diagram of the connector structure of the present invention is shown;

[0042] Fig. 9 A schematic diagram of the structure of the composite cleaning assembly of the present invention in the first state is shown;

[0043] Fig.10 A schematic diagram of the structure of the composite cleaning assembly of the present invention in the first state is shown;

[0044] Fig.11 A schematic diagram of the connection structure between the driving rod and the driven gear of the present invention is shown;

[0045] Fig.12 It shows a schematic diagram of the inner sealing plate opening a rectangular opening structure of the present invention;

[0046] Fig.13 A schematic diagram of the internal structure of the lower box body of the present invention is shown;

[0047] As shown in the figure: 1. Lower box, 2. Clamping assembly, 21. First clamping plate, 211. Water supply pipe, 22. Second clamping plate, 221. Drain pipe, 23. Support rod, 24. Top guide rod, 25. Side guide plate, 251. Slide, 26. Vertical plate, 27. First drive rod, 28. Side positioning component, 281. Sliding block, 282. Locking plug plate, 283. Pull rod, 29. Main frame, 3. Heat exchange plate, 31. First liquid guide hole, 32. First Second liquid guide hole, 33, middle partition, 34, first liquid guide chamber, 341, first spiral channel, 35, second liquid guide chamber, 351, second spiral channel, 36, series channel, 37, rubber ring, 38, rubber pad, 39, reserved groove, 301, locking groove, 4, cover plate, 41, heating medium supply pipe, 42, heating medium discharge pipe, 43, assembly plate, 5, evacuation component, 51, top frame, 52, first vertical plate, 521, hanging plate , 53, second drive rod, 54, screw seat, 541, second vertical plate, 55, resistance, 551, suspension rod, 5511, resistance groove, 552, cylinder, 553, block, 554, resistance rod, 56, adjustment plate, 561, adjustment groove, 5611, flat groove, 5612, semicircular groove, 562, translation groove, 57, connecting piece, 571, inner block, 572, outer matching rod, 573, inner plug rod, 6, composite cleaning assembly, 6 1. Lower slider, 62. Gantry, 63. Agitating tube, 631. Side through hole, 632. Rectangular opening, 633. Brush, 634. Driven gear, 64. Driving gear rod, 65. Transfer box, 66. Upper tube body, 661. Positioning ring, 662. Driven gear ring, 67. Driving gear, 68. Inner sealing plate, 69. Storage box, 7. Flushing assembly, 71. Flushing plate, 72. Nozzle, 73. Bracket, 74. Filter frame, 75. Liquid pump. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In order to solve the technical problems in the background technology, a plate heat exchanger with a built-in spiral channel for a heating pipe network is provided as follows:

[0050] Combination Figure 1-Figure 13 As shown, the present invention provides a plate heat exchanger with a built-in spiral channel for a heating pipe network, comprising a lower box 1;

[0051] The clamping assembly 2 includes a main frame 29, a support rod 23, a first clamping plate 21, a second clamping plate 22, a top guide rod 24 and a side guide plate 25. The main frame is arranged parallel to the top of the lower box body, and top guide rods are symmetrically arranged on both sides of the interior of the main frame. Lifting drive rods are arranged on both sides of the bottom surface of the main frame, and a support rod is vertically arranged on the bottom surface of one end of the top guide rod; the top two corners of the first clamping plate are slidably mounted on the outer walls of the two groups of top guide rods, and the top two corners of the second clamping plate are fixedly mounted on the outer walls of the two groups of top guide rods. The first clamping plate and the second clamping plate are fixedly mounted on the outer walls of the two groups of top guide rods. The two clamping plates are arranged at intervals, and a longitudinal plate 26 is provided between the support rods at the same end. A first driving rod 27 is vertically provided in the middle of the inner wall of the longitudinal plate, and the output end of the first driving rod is connected to the first clamping plate. A water supply pipe 211 is provided at the top corner of the outer wall of the first clamping plate, and a drainage pipe 221 is provided at the bottom corner of the outer wall of the second clamping plate; one end of the side guide plate is vertically fixedly connected to the support rod, and the other end is vertically fixedly connected to the second clamping plate, and the side guide plate slides through the first clamping plate and the second clamping plate, and multiple sets of side positioning components 28 are slidably installed inside the side guide plate;

[0052] The heat exchange plate 3 is overlapped between the first clamping plate 21 and the second clamping plate 22 in turn, and the adjacent heat exchange plates 3 are sealed and fitted. The side of the heat exchange plate 3 is clamped with the side positioning component 28. The top corner of the heat exchange plate 3 is provided with a first liquid guide hole 31, and the bottom corner is provided with a second liquid guide hole 32. The side wall of the heat exchange plate 3 is provided with liquid blocking protrusions; a middle partition bar 33 is provided in the middle of the interior of the heat exchange plate 3, one side of the middle partition bar 33 is a first liquid guide chamber 34, and the other side is a second liquid guide chamber 35. The tops of the first liquid guide chamber 34 and the second liquid guide chamber 35 are open structures, and multiple groups of first spiral channels 341 are provided in the first liquid guide chamber 34, and multiple groups of second spiral channels 351 are provided in the second liquid guide chamber 35. The bottom of the first liquid guide chamber 34 and the bottom of the second liquid guide chamber 35 are connected through a series channel 36;

[0053] The cover plate 4 seals and covers the tops of the multiple groups of heat exchange plates 3. The cover plate 4 is installed between the first clamping plate 21 and the second clamping plate 22. One side of the surface of the cover plate 4 is provided with multiple groups of heating medium supply pipes 41, and the other side of the surface is provided with multiple groups of heating medium discharge pipes 42. The bottom of the heating medium supply pipe 41 is connected to the first spiral channel 341 or the second spiral channel 351.

[0054] The evacuation assembly 5 is symmetrically mounted on both sides of the top of the lower box body 1. The evacuation assembly 5 is used to automatically drive each group of heat exchange plates 3 to separate when cleaning the heat exchange plates 3;

[0055] The composite cleaning component 6 is installed above the clamping component 2; the composite cleaning component 6 includes the following states: in the first state, the composite cleaning component 6 is docked at the top of the heat exchange plate 3 to back-blow clean the first spiral channel 341 and the second spiral channel 351; in the second state, the heat exchange plates 3 are separated, and the composite cleaning component 6 extends between the two groups of heat exchange plates 3 to scrub the sides of the heat exchange plates 3.

[0056] In the above scheme:

[0057] 1. The setting of the clamping component can achieve the following effects:

[0058] 1.1. Each group of heat exchange plates is clamped and positioned by the first clamping plate and the second clamping plate, so that the heat exchange plates are tightly overlapped to realize the heat exchange supply of water. There is no need to use the traditional double-headed screw for penetration positioning, which makes the closing and disassembly of the heat exchange plates easier;

[0059] 1.2. The side positioning components in the side guide plate can position the heat exchange plate from the side, thereby realizing the side positioning of the heat exchange plate and ensuring that the heat exchange plate can still be fixed on the side guide plate when not clamped, which is convenient for early installation and later maintenance;

[0060] 1.3. When the heat exchange plate needs to be removed, the side positioning component can be separated from the heat exchange plate. In this way, a single heat exchange plate can be replaced, making the replacement operation easier without removing the double-headed screw and disassembling all the heat exchange plates.

[0061] 2. The setting of heat exchange plate can achieve the following effects:

[0062] 2.1. The side of the heat exchange plate is the hot water diversion area. Water flows along the chambers between the heat exchange plates to achieve heat exchange and heating, and is finally output to the user;

[0063] 2.2. Each heat exchange plate is provided with a U-shaped medium flow channel inside. The external heating medium (hot air, hot water) can enter through the spiral channel on one side, then flow through the series channel below to the spiral channel on the other side, and then spirally move upward to be discharged. In this way, the heating path of the heating medium in the heat exchange plate is very long, the heat exchange is more sufficient, and the medium flow channel design of the heat exchange plate is simple;

[0064] 3. The cover plate is designed to block the top opening of each heat exchange plate from above, so that the heating medium supply pipe and the heating medium discharge pipe can work normally and separately to ensure the circulation of the heating medium;

[0065] 4. The setting of the evacuation component can automatically push apart each heat exchange plate, so that the heat exchange plates can be automatically separated during cleaning, without the need for manual separation one by one, and also prepare for subsequent maintenance and cleaning;

[0066] 5. The setting of the composite cleaning component can firstly backwash the spiral channel to clean the heat exchange chamber inside the heat exchange plate, and then adjust it to between adjacent heat exchange plates. The composite cleaning component can scrub the heat exchange plate to quickly clean impurities.

[0067] In this embodiment, rubber rings 37 are provided on both sides of the heat exchange plate 3, a rubber pad 38 is provided on the top surface of the heat exchange plate 3, locking grooves 301 are provided on the top and bottom of the side of the heat exchange plate 3, and a reserved groove 39 is provided in the middle of the side of the heat exchange plate 3.

[0068] In the above solution: the provision of the rubber ring can achieve the sealing fit of the side of the heat exchange plate, and the provision of the rubber pad facilitates the sealing fit of the heat exchange plate and the cover plate.

[0069] In this embodiment, the side positioning component 28 includes a slider 281, a slide groove 251 is opened inside the side guide plate 25, and multiple groups of sliders 281 are embedded in the slide groove 251 for damping sliding. The internal elastic sliding of the slider 281 passes through a locking plug plate 282, and a pull rod 283 is provided at the outer end of the locking plug plate 282, and the locking plug plate 282 is inserted into the locking groove.

[0070] In the above scheme: when the heat exchange plate is inserted, the locking plug plate is inserted into the locking groove, so that the side positioning of the heat exchange plate can be achieved; the locking plug plate is slidably embedded in the slide groove through the slider, so that when the heat exchange plate is evacuated, the slider can move along the slide groove; when unlocking, the pull rod is pulled outward to drive the locking plug plate out of the locking groove.

[0071] In this embodiment, sealing strips are provided on both sides of the cover plate 4, and mounting plates 43 are vertically provided on both sides of the surface of the cover plate 4, and the mounting plates 43 are assembled to the inner walls of the first clamping plate 21 and the second clamping plate 22 by screws. The design of the sealing strips and the mounting plates can further improve the sealing and firmness of the cover plate and the first clamping plate and the second clamping plate.

[0072] In this embodiment, the evacuation assembly 5 includes a top frame body 51, which is arranged at the top end of the lower box body 1. A first vertical plate 52 is provided in the middle of the bottom surface of the top frame body 51. A hanging plate 521 is horizontally slidably installed on the bottom surface of the first vertical plate 52. A second driving rod 53 for driving the hanging plate 521 to translate is provided on the side of the first vertical plate 52. A transversely extending screw seat 54 is provided on the bottom surface of the hanging plate 521. A resistance member 55 is slidably installed inside the screw seat 54. The side of the screw seat 54 is connected to a transversely extending adjustment plate 56 through a second vertical plate 541. A translation groove 562 is opened inside the adjustment plate 56. Multiple groups of connecting members 57 are slidably embedded inside the translation groove. The connecting member 57 is inserted into the reserved groove 39. The resistance member 55 is used to resist the movement of the connecting member 57 to drive the heat exchange plate 3 to evacuate.

[0073] In the above scheme: when the heat exchange plate needs to be opened, the lifting drive rod drives the clamping assembly to descend a certain height so that the reserved groove is aligned with the connecting piece, and then the second drive rod drives the hanging plate to translate so that each connecting piece is inserted into the reserved groove; when opening, the screw seat drives the resistance piece to move along the translation groove, and the resistance piece resists each connecting piece one by one for a fixed distance, so that automatic opening can be achieved; after each group of heat exchange plates are separated, they can be kept in the corresponding position under the action of friction and the weight of the heat exchange plate, and will not slide at will.

[0074] In this embodiment, the resistance member 55 includes a suspension rod 551 and a resistance rod 554. The top of the suspension rod 551 is slidably embedded in the screw seat 54. The bottom of the suspension rod 551 is provided with a resistance groove 5511. A cylinder 552 is vertically slidably installed inside the resistance groove 5511. A block 553 is provided at the inner end of the cylinder 552. The bottom surface of the block 553 is vertically provided with a resistance rod 554. An adjustment groove 561 is provided at the top of the side of the adjustment plate 56. The adjustment groove 561 is composed of a flat groove 5611 and a semicircular groove 5612 connected in sequence. The semicircular groove 5612 protrudes upward. The bottom of the semicircular groove 5612 connects the two groups of flat grooves 5611. The block 553 is slidably embedded in the adjustment groove 561. The working steps of moving the resistance member 55 along the adjustment groove 561 are as follows:

[0075] S1, the block 553 moves along the flat groove 5611, the abutting rod 554 abuts against the translation of the multiple groups of connecting members 57, thereby pushing the multiple groups of heat exchange plates 3 to translate;

[0076] S2, the block 553 moves along the semicircular groove 5612, and the abutting rod 554 is lifted up and passes over the previous connecting member 57 and then abuts against the next connecting member 57;

[0077] S3, the block 553 moves along the next flat groove 5611, and the abutting rod 554 abuts against the remaining multiple groups of connecting members 57 to translate, thereby pushing the remaining multiple groups of heat exchange plates 3 to translate.

[0078] In the above scheme, by adjusting the shape of the groove, the abutment can first abut the connecting member for a certain distance during translation, and then automatically pass over the connecting member to continue to abut the next connecting member.

[0079] In this embodiment, the connecting member 57 includes an inner block 571 , the outer wall of the inner block 571 is provided with an outer mating rod 572 , and the inner wall is provided with an inner insertion rod 573 , the outer mating rod 572 is in mating contact with the resistance rod 554 , and the inner insertion rod 573 is inserted into the reserved groove 39 .

[0080] In this embodiment, the composite cleaning component includes a lower slider 61, which is slidably installed on both sides of the upper surface of the main frame, the tops of the two groups of lower sliders are connected to the gantry 62, and the top surface of the gantry is symmetrical with two groups of transfer boxes 65, and the two joints on the top of the transfer box are respectively connected to the input pump and the output pump; a storage box is installed on the bottom surface of the gantry, and a stirring tube 63 is rotatably installed on the bottom surface of the storage box. The top of the stirring tube passes through the storage box and extends into the transfer box. A driven gear 634 is provided on the outer wall of the top end of the stirring tube, and a driving gear rod 64 for driving the driven gear to rotate is installed inside the storage box, and bristles 633 are evenly embedded on the outer wall of the stirring tube; in the first state, the bottom end of the stirring tube 63 is inserted into the top of the first spiral channel 341 and the second spiral channel 351; in the second state, the stirring tube 63 is inserted between adjacent heat exchange plates 3, the stirring tube 63 rotates, and the bristles 633 clean the impurities on the side of the heat exchange plate 3.

[0081] In the above scheme:

[0082] 1. The lower slider can drive the gantry to move along the main frame, so that the stirring tube moves to the designated cleaning position;

[0083] 2. A driven gear is provided on the top outer wall of each stirring tube, so that when the driving rod rotates, it can synchronously drive each stirring tube to rotate, so as to stir and clean impurities;

[0084] 3. Since the heat exchange plates are arranged in sequence with the front and back sides attached, and the cover plate is installed in a fixed manner, the first spiral channel of the previous heat exchange plate enters the medium and the second spiral channel exits the medium, but the next adjacent heat exchange plate has the first spiral channel exiting the medium and the second spiral channel entering the medium; in order to meet the recoil requirements of different heat exchange plates; a group of transfer boxes are set at the top of the stirring tube on the same side, and each group of transfer boxes is connected in parallel with an input pump and an output pump, so that the transfer box can input and output the medium.

[0085] In this embodiment, an upper tube body 66 is rotatably mounted at the inner midline of the stirring tube 63, a positioning ring 661 is provided on the top outer wall of the upper tube body 66, and the positioning ring 661 is rotatably embedded in the inner top of the stirring tube 63, a driven gear ring 662 is provided on the top outer wall of the upper tube body 66, a motor is provided on the side wall of the stirring tube 63, and the top of the motor is connected to a driving gear 67, and a notch is provided on the side wall of the stirring tube 63 for the driving gear 67 to extend into, and the driving gear 67 is meshed and connected to the driven gear ring 662; the upper tube body 6 6 is provided with a U-shaped inner sealing plate 68 on the bottom surface, a rectangular opening 632 is provided at the bottom end of the stirring tube 63, and two rows of side through holes 631 are symmetrically provided on the outer wall of the stirring tube 63; in the first state, the side of the inner sealing plate 68 blocks the side through holes 631 and the bottom of the inner sealing plate 68 opens the rectangular opening 632 in an offset manner; in the second state, the side of the inner sealing plate 68 opens the side through holes 631 in an offset manner and the bottom of the inner sealing plate 68 blocks the rectangular opening 632, so that when the stirring tube 63 is brushed, the gas can impact the impurities.

[0086] In the above scheme: the setting of the inner sealing plate can seal the side through holes and open the rectangular opening when cleaning the spiral channel, so that the medium can be vertically conveyed in the stirring tube; and when scrubbing the side of the heat exchange plate, the driving gear can drive the driven gear ring to rotate, thereby driving the stirring tube to rotate, so that the bottom of the inner sealing plate seals the rectangular opening and the side through holes are opened, so that the input pump can input hot air or high-pressure gas, and the side through holes discharge hot air or high-pressure gas to help improve the scrubbing cleaning effect.

[0087] In this embodiment, a flushing assembly 7 is provided at the top of the lower box 1, and the flushing assembly 7 includes a bracket 73, which is arranged at the center of the lower box 1, and a flushing plate 71 is vertically provided on the top surface of the bracket 73, and a plurality of flushing heads 72 are embedded on the surface of the flushing plate 71, and a filter frame 74 is provided on the outer wall of the bracket 73, and a liquid pump 75 is installed on the side wall of the bracket 73, and the output end of the liquid pump 75 is connected to the flushing plate 71; in the second state, the liquid pump 75 extracts the liquid in the filter frame 74 to the flushing plate 71, and the flushing plate 71 sprays water upward to the side of the heat exchange plate 3;

[0088] In the above scheme: cleaning liquid is stored in the lower box, the filter frame can filter impurities in the cleaning liquid, and then the liquid pump is pumped out to the flushing plate, and each nozzle sprays liquid upward to the side of the heat exchange plate to achieve impact on the side of the heat exchange plate and achieve scrubbing; at the same time, the scrubbing liquid flows back to the lower box, making the cleaning site cleaner, the cleaning process simpler and faster.

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0090] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A plate heat exchanger with a built-in spiral channel for a heating network, characterized in that: include: A lower box body, in which cleaning liquid is stored; The clamping assembly comprises a main frame, a support rod, a first clamping plate, a second clamping plate, a top guide rod and a side guide plate, the main frame is arranged parallel to the top of the lower box body, and top guide rods are symmetrically arranged on both sides of the interior of the main frame, and a support rod is vertically arranged on the bottom surface of one end of the top guide rod; the top two corners of the first clamping plate are slidably mounted on the outer walls of the two groups of top guide rods, and the top two corners of the second clamping plate are fixedly mounted on the outer walls of the two groups of top guide rods, the first clamping plate and the second clamping plate are distributed at intervals, a longitudinal plate is arranged between the support rods at the same end, a first driving rod is vertically arranged in the middle of the inner wall of the longitudinal plate, the output end of the first driving rod is connected to the first clamping plate, a water supply pipe is arranged at the top corner of the outer wall of the first clamping plate, and a drainage pipe is arranged at the bottom corner of the outer wall of the second clamping plate; one end of the side guide plate is vertically fixedly connected to the support rod, and the other end is vertically fixedly connected to the second clamping plate, the side guide plate slides through the first clamping plate and the second clamping plate, and multiple groups of side positioning components are slidably installed inside the side guide plate; The heat exchange plate is sequentially overlapped between the first clamping plate and the second clamping plate, the adjacent heat exchange plates are sealed and fitted, the side of the heat exchange plate is clamped with the side positioning component, the top corner of the heat exchange plate is provided with a first liquid guide hole, the bottom corner is provided with a second liquid guide hole, and the side wall of the heat exchange plate is provided with liquid blocking protrusions; a middle partition bar is provided in the middle of the interior of the heat exchange plate, one side of the middle partition bar is the first liquid guide chamber, and the other side is the second liquid guide chamber, the top of the first liquid guide chamber and the second liquid guide chamber are open structures, a plurality of groups of first spiral channels are provided in the first liquid guide chamber, a plurality of groups of second spiral channels are provided in the second liquid guide chamber, and the bottom of the first liquid guide chamber and the bottom of the second liquid guide chamber are connected through a series channel; A cover plate, which seals and covers the tops of the multiple groups of heat exchange plates, is installed between the first clamping plate and the second clamping plate, and one side of the surface of the cover plate is provided with multiple groups of heating medium supply pipes, and the other side of the surface is provided with multiple groups of heating medium discharge pipes, and the bottom of the heating medium supply pipe is connected to the first spiral channel or the second spiral channel; The evacuation assembly is symmetrically installed on both sides of the top of the lower box. The evacuation assembly is used to automatically drive each group of heat exchange plates to separate when cleaning the heat exchange plates; A composite cleaning assembly is installed above the clamping assembly; the composite cleaning assembly includes the following states: in the first state, the composite cleaning assembly is docked at the top of the heat exchange plate to back-blow clean the first spiral channel and the second spiral channel; in the second state, the heat exchange plates are separated, and the composite cleaning assembly extends between the two groups of heat exchange plates to scrub the sides of the heat exchange plates.

2. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 1, characterized in that: The two sides of the heat exchange plate are provided with rubber rings, the top surface of the heat exchange plate is provided with a rubber pad, the top and bottom of the side of the heat exchange plate are provided with locking grooves, and the middle of the side of the heat exchange plate is provided with a reserved groove.

3. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 2, characterized in that: The side positioning component includes a slider, a sliding groove is opened inside the side guide plate, and multiple groups of sliders are embedded in the sliding groove for damping sliding. A locking plug plate is elastically slidable inside the slider, and a pull rod is provided at the outer end of the locking plug plate. The locking plug plate is inserted into the locking groove in cooperation.

4. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 3, characterized in that: Sealing strips are arranged on the two side surfaces of the cover plate, and assembly plates are vertically arranged on the two sides of the surface of the cover plate. The assembly plates are assembled to the inner walls of the first clamping plate and the second clamping plate by screws.

5. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 4, characterized in that: The evacuation assembly includes a top frame body, which is arranged at one end of the top of the lower box body. A first vertical plate is provided in the middle of the bottom surface of the top frame body. A hanging plate is horizontally slidably installed on the bottom surface of the first vertical plate. A second driving rod is provided on the side of the first vertical plate to drive the hanging plate to move horizontally. A transversely extending screw seat is provided on the bottom surface of the hanging plate. A resistance piece is slidably installed inside the screw seat. The side surface of the screw seat is connected to a transversely extending adjustment plate through the second vertical plate. A translation groove is opened inside the adjustment plate. Multiple groups of connecting parts are slidably embedded inside the translation groove. The connecting parts are inserted into the reserved grooves. The resistance piece is used to resist the movement of the connecting parts to drive the heat exchange plate to evacuate.

6. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 5, characterized in that: The interference member includes a suspension rod and an interference rod. The top of the suspension rod is slidably embedded in the screw seat. The bottom of the suspension rod is provided with an interference groove. A cylinder is vertically slidably installed inside the interference groove. A square is provided at the inner end of the cylinder. The bottom surface of the square is vertically provided with an interference rod. An adjustment groove is provided on the top of the side of the adjustment plate. The adjustment groove is composed of a flat groove and a semicircular groove connected in sequence. The semicircular groove protrudes upward. The bottom of the semicircular groove connects the two groups of flat grooves. The square is slidably embedded in the adjustment groove. The working steps of the interference member moving along the adjustment groove are as follows: S1, the block moves along the flat groove, the abutment rod abuts against the translation of multiple sets of connecting parts, and then pushes multiple sets of heat exchange plates to translate; S2, the block moves along the semicircular groove, and the abutment rod is lifted up and passes over the previous connecting piece and then abuts against the next connecting piece; S3, the block moves along the next flat groove, the abutment rod abuts against the translation of the remaining multiple sets of connecting parts, and then pushes the translation of the remaining multiple sets of heat exchange plates.

7. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 6, characterized in that: The connecting piece comprises an inner block, the outer wall of the inner block is provided with an outer matching rod, the inner wall is provided with an inner insertion rod, the outer matching rod is in matching contact with the abutment rod, and the inner insertion rod is inserted into the reserved groove.

8. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 7, characterized in that: The composite cleaning assembly includes a lower slider, which is slidably installed on both sides of the upper surface of the main frame, the tops of the two groups of lower sliders are connected to the gantry, the top surface of the gantry is symmetrical with the two groups of transfer boxes, and the two joints on the top of the transfer box are respectively connected to the input pump and the output pump; a storage box is installed on the bottom surface of the gantry, and a stirring tube is rotatably installed on the bottom surface of the storage box, the top of the stirring tube passes through the storage box and extends into the transfer box, a driven gear is provided on the outer wall of the top end of the stirring tube, a driving gear rod for driving the driven gear to rotate is installed inside the storage box, and bristles are evenly embedded on the outer wall of the stirring tube; in the first state, the bottom end of the stirring tube is inserted into the top of the first spiral channel and the second spiral channel; in the second state, the stirring tube is inserted between adjacent heat exchange plates, the stirring tube rotates, and the bristles clean impurities on the sides of the heat exchange plates.

9. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 8, characterized in that: An upper tube body is rotatably installed at the inner center line of the stirring tube, and a positioning ring is provided on the outer wall of the top end of the upper tube body, which is rotatably embedded in the inner top end of the stirring tube, a driven gear ring is provided on the top outer wall of the upper tube body, and a motor is provided on the side wall of the stirring tube, and the top end of the motor is connected to a driving gear. A notch is provided on the side wall of the stirring tube for the driving gear to extend into, and the driving gear is meshed and connected to the driven gear ring; a U-shaped inner sealing plate is provided on the bottom surface of the upper tube body, a rectangular opening is provided at the bottom end of the stirring tube, and two rows of side through holes are symmetrically provided on the outer wall of the stirring tube; in the first state, the side part of the inner sealing plate blocks the side through holes and the bottom of the inner sealing plate opens the rectangular opening in an offset manner; in the second state, the side part of the inner sealing plate opens the side through holes in an offset manner and the bottom of the inner sealing plate blocks the rectangular opening, so that the impurities can be exhausted and impacted when the stirring tube is brushed.

10. A plate heat exchanger with a built-in spiral channel for a heating pipe network according to claim 9, characterized in that: A flushing assembly is provided at the inner top of the lower box body, and the flushing assembly includes a bracket, which is arranged at the center of the lower box body. A flushing plate is vertically provided on the top surface of the bracket, and multiple groups of flushing heads are embedded in the surface of the flushing plate. A filter frame is provided on the outer wall of the bracket, and a liquid pump is installed on the side wall of the bracket. The output end of the liquid pump is connected to the flushing plate; in the second state, the liquid pump draws out the liquid in the filter frame to the flushing plate, and the flushing plate sprays water upward to the side of the heat exchange plate.

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