Easily-overhauled plate heat exchanger for air conditioning unit

Abstract

The invention discloses an easy-to-overhaul plate heat exchanger for an air conditioning unit, relates to the technical field of plate heat exchangers, and solves the technical problems that the plate heat exchanger used in the air conditioning unit is difficult to overhaul and inconvenient to clean. An upper guide rod and a lower guide rod are arranged at the top end and the bottom end of the back of the fixed pressing mechanism respectively, a plate sheet set is arranged on the inner side of the upper guide rod and the inner side of the lower guide rod, a movable pressing mechanism is arranged on the back of the plate sheet set, and a support is arranged at the rear end of the upper guide rod and the rear end of the lower guide rod. A plurality of sets of lead screws are symmetrically arranged on the side faces of the fixed pressing mechanism and the movable pressing mechanism, and the rear ends of the outer walls of the lead screws are in threaded connection with fastening nuts. Through cooperative work of the mechanisms, the heat exchanger is convenient to install, a heat exchange medium flowing into the plate set can be filtered, the scaling speed of the plate set is reduced, the plate set is convenient to clean, and daily maintenance and overhaul of the plate set are easy.

Description

Technical Field

[0001] The invention relates to the technical field of plate heat exchangers, and in particular to a plate heat exchanger for an air-conditioning unit which is easy to repair. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with certain corrugated shapes. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. It is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application, long service life, etc. Plate heat exchanger of air conditioning system is an important part of air conditioning system. Plate heat exchanger is widely used for heat exchange of chilled water in air conditioning system. Installing plate heat exchanger between cooling tower and condenser near condenser can play the role of condenser, prevent equipment corrosion or blockage, and save the operation time of chiller in transition season. After searching, a plate heat exchanger for air conditioning equipment is disclosed in a Chinese patent, the publication number is CN216592907U, through the cooperation of the pulley and the guide rod, the movable plate can slide inside the bracket, so as to achieve the effect of sliding and adjusting the position of the movable plate, and through the cooperation of the inner rod and the sleeve, the position of the movable plate can be moved and changed, so as to achieve the effect of pushing or pulling the movable plate, which is convenient for the staff to disassemble and install; However, there are still some shortcomings in the use of the above device. Since there are many related equipment in the air-conditioning unit and the distribution of various equipment is complex, it is not convenient to disassemble and reassemble the heat exchanger and related equipment and pipelines after installation. Therefore, it is not easy to repair the heat exchanger. Failures are inevitable after long-term use, and it is not convenient to clean its plates. Summary of the invention

[0003] The object of the present invention is to provide a plate heat exchanger for an air conditioning unit that is easy to repair, so as to solve the following technical problems: Since there are many related equipment in the air-conditioning unit and the distribution of various equipment is complex, it is not convenient to disassemble and reassemble the heat exchanger and related equipment and pipelines after installation. Therefore, it is not easy to repair the heat exchanger. Failure is inevitable after long-term use, and it is not convenient to clean its plates.

[0004] The object of the present invention can be achieved by the following technical scheme: a plate heat exchanger for an air-conditioning unit that is easy to repair, comprising a fixed pressing mechanism, the top and bottom ends of the back of the fixed pressing mechanism are respectively provided with an upper guide rod and a lower guide rod, the inner sides of the upper guide rod and the lower guide rod are provided with a plate group, the back of the plate group is provided with a movable pressing mechanism, the rear ends of the upper guide rod and the lower guide rod are provided with a bracket, the sides of the fixed pressing mechanism and the movable pressing mechanism are symmetrically provided with multiple groups of screw rods, and the rear ends of the outer walls of the screw rods are threadedly connected with fastening nuts; The fixing and pressing mechanism comprises a front end plate, the bottom end of the front end plate is threadedly connected to two base feet by bolts, and the center of the upper surface of the front end plate is provided with an embedding groove, and a hot medium inlet, a hot medium outlet, a cold medium inlet and a cold medium outlet are sequentially provided around the interior of the front end plate, and the hot medium inlet and the cold medium outlet are opened at the top of the front end plate, and the hot medium outlet and the cold medium inlet are opened at the bottom end of the front end plate, and the front ends of the hot medium inlet, the hot medium outlet, the cold medium inlet and the cold medium outlet are all threadedly connected to an electric valve through a flange, and the front ends of the electric valves located at the front ends of the hot medium inlet and the cold medium inlet are both provided with filter components, the top front end of the upper guide rod is clamped in the embedding groove and is combined with the front end plate by bolts, the front end of the lower guide rod is attached to the center of the bottom end of the back of the front end plate, and is also combined with the front end plate by bolts, and the outer wall front ends of the plurality of screw rods are penetrated and arranged on the side of the front end plate.

[0005] As a further scheme of the present invention, the filter component includes a connecting disk, the front end of the connecting disk is fixedly connected to an axis disk, the front end of the outer wall of the axis disk is rotatably connected to a sleeve, the outer wall array of the sleeve is provided with a plurality of external handles, the inner wall of the sleeve is threadedly connected to a plug, the front end of the inner wall of the plug is fixedly connected to a fixed disk, a spring telescopic rod 1 is fixedly connected to the center of the back of the fixed disk, a cleaning agent storage box is fitted on the back of the spring telescopic rod 1, a filter box is clamped on the back of the cleaning agent storage box, a chuck is fitted on the back of the filter box, a plurality of reinforcing ribs are fixedly connected to the inner side of the chuck, an inner handle is fixedly connected to the back of the intersection of the plurality of reinforcing ribs, and the connecting disk is threadedly connected to the front end of the electric valve by bolts.

[0006] As a further solution of the present invention, the inner wall of the sleeve and the outer wall of the insert are respectively processed with matching threads and thread grooves, and the rear end of the inner wall of the insert is processed with a groove, and the teeth processed on the outer wall of the chuck are engaged with the inside of the groove.

[0007] As a further scheme of the present invention, filter mesh 1 is processed on the inner sides of the front surface and the back of the cleaning agent storage box, a gasket is processed at the center of filter mesh 1 on the inner side of the front surface of the cleaning agent storage box, two supporting ribs are arranged at the top and bottom ends of the back of the gasket, and the rear ends of the supporting ribs are fixedly connected to the inner wall of the cleaning agent storage box, a dosing port is opened at the center of filter mesh 1 on the inner side of the back of the cleaning agent storage box, filter mesh 2 is processed on the inner sides of the front surface and the back of the filter box, and the aperture of filter mesh 1 is larger than that of filter mesh 2, and the interior of the filter box is filled with filter material.

[0008] As a further solution of the present invention, the bottom end of the upper guide rod and the top end of the lower guide rod are both processed with slide rails of the same specifications.

[0009] As a further solution of the present invention, two groove blocks are symmetrically arranged at the top and bottom ends of the front surface of the bracket, and the bracket is clamped on the rear ends of the upper guide rod and the lower guide rod through the groove blocks, and is threadedly connected with the upper guide rod and the lower guide rod through bolts. A vertically arranged reinforcing support rod is processed on the back of the bracket.

[0010] As a further scheme of the present invention, the plate group consists of plate one, plate two, plate three and plate four, and the centers of the top and bottom ends of the plate one, plate two, plate three and plate four are all provided with slide grooves that are compatible with the specifications of the slide rails, and are slidably connected to the outer walls of the slide rails processed on the inner sides of the upper guide rod and the lower guide rod through the slide grooves. The front surface of the plate one is bonded to the back of the front end plate, and the back of the plate two is bonded to the front surface of the rear end plate. The inner sides of the plate one and the plate two are sequentially provided with several groups of plate three and plate four from front to back, the front surface of the frontmost plate three is bonded to the inside of the plate one, and the back of the plate four at the rear end is bonded to the front surface of the plate two, the plate one, several plates three, several plates four and the plate two are all tightly fitted together, and the outer walls of the plate one, plate two, plate three and plate four are all provided with honeycomb heat dissipation holes.

[0011] As a further solution of the present invention, through holes are opened at positions corresponding to the hot medium inlet, hot medium outlet, cold medium inlet and cold medium outlet opened in the front end plate in plate one, plate two, plate three and plate four, and a baffle is processed at the through hole opened in plate two.

[0012] As a further solution of the present invention, the movable clamping mechanism includes a rear end plate, slots are opened at the centers of the top and bottom of the rear end plate, a sliding frame is fixedly connected to the top of the rear end plate, a sliding roller is rotatably connected to the inner side of the sliding frame, and an auxiliary supporting member is provided at the bottom end of the rear end plate, the rear end plate is slidably connected to the outer wall of the slide rail processed on the inner sides of the upper guide rod and the lower guide rod, and the front surface of the rear end plate is attached to the back of the plate piece 2, the outer wall rear ends of the plurality of screw rods are penetrated and arranged on the side of the rear end plate, the front surface of the fastening nut is attached to the back of the rear end plate, the sliding frame is sleeved on the outer wall of the upper guide rod, and the bottom end of the sliding roller is attached to the upper surface of the upper guide rod.

[0013] As a further solution of the present invention, the auxiliary supporting member includes a groove, the inner wall of the groove is fixedly connected to a guide rail, the outer wall of the guide rail is slidably connected to a protrusion, the outer side of the protrusion is fixedly connected to a spring telescopic rod 2, the inner side of the protrusion is fixedly connected to an insertion block, the outer bottom end of the protrusion is fixedly connected to a pull rod, the groove is opened inside the bottom end of the rear end plate, the outer side of the spring telescopic rod 2 is fixedly connected to the inner side of the groove, and the insertion block is inserted into the side of the lower guide rod.

[0014] Beneficial effects of the present invention: (1) Through the cooperation between the electric valve and the filter component in the fixed clamping mechanism, the opening and closing of the cold and hot medium inlet and outlet on the front plate can be flexibly controlled. At the same time, the cleaning agent can be stored in the cleaning agent storage box in the filter component in advance, which is convenient for cleaning the plate group. The impurities in the cold and hot media can be filtered and adsorbed through the filter box, and the scaling rate in the plate group can be slowed down. Through the cooperation between the sleeve and the insert, it is easy to fill the cleaning agent storage box with cleaning agent, and it is convenient to replace the filter box, and it is convenient to disassemble and assemble the heat exchanger after the installation of related equipment and pipelines. By opening honeycomb heat dissipation holes on the outer walls of the plate 1, plate 2, plate 3 and plate 4 in the plate group, its heat dissipation efficiency can be further improved; (2) Through the cooperation of the sliding frame, sliding roller and auxiliary support member in the movable clamping mechanism, the rear end plate can be conveniently and quickly installed on the inner side of the upper guide rod and the lower guide rod, and the rear end plate can be supported at the same time, so that the weight of the rear end plate itself is more evenly distributed on the outer wall of the upper guide rod and the lower guide rod, avoiding the problem of deformation of the upper guide rod or the lower guide rod due to the weight of the rear end plate itself after long-term use; (3) Through the cooperation of the above-mentioned mechanisms, the heat exchanger can be easily installed. At the same time, the number of plates three and four can be flexibly installed according to the heat exchange flow requirements of the heat exchange medium. The heat exchange medium flowing into the plate group can be filtered, thereby slowing down the scaling rate of the plate group. When the plate group needs to be cleaned, cleaning agent is added to the cleaning agent storage box, which facilitates the cleaning of the plate group and makes it easy for daily maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural exploded view of a plate heat exchanger for an air-conditioning unit that is easy to repair according to the present invention; Figure 2 The present invention Figure 1 Another axonometric exploded view of the structure; Figure 3 The present invention Figure 1 Schematic diagram of assembly connection structure; Figure 4 The present invention Figure 1 Exploded diagram of the structure of the middle plate group; Figure 5 The present invention Figure 1 A schematic diagram of the connection structure of the fixed pressing mechanism; Figure 6 The present invention Figure 5 Schematic diagram of the connection structure of the middle and front end panels; Figure 7 The present invention Figure 5 Schematic diagram of the connection structure between the electric valve and the filter component; Figure 8 The present invention Figure 7 A schematic diagram of the partial cross-sectional connection structure of the filter component; Fig. 9 The present invention Figure 8 Another isometric connection structure schematic diagram; Fig.10 The present invention Figure 8 A schematic diagram of the side cross-sectional connection structure of the cleaning agent storage box and the filter box; Fig.11 The present invention Figure 8 Another schematic diagram of the axonometric connection structure of the middle casing and the inserting tube; Fig.12 The present invention Figure 1 Schematic diagram of the connection structure of the movable clamping mechanism; Fig.13 The present invention Fig.12 Schematic diagram of another axonometric connection structure of the auxiliary support member.

[0016] In the figure: 1, fixed pressing mechanism; 101, front end plate; 102, foot; 103, fitting groove; 104, hot medium inlet; 105, hot medium outlet; 106, cold medium inlet; 107, cold medium outlet; 108, electric valve; 109, filter element; 1091, connecting plate; 1092, shaft plate; 1093, sleeve; 1094, outer handle; 1095, insert; 1096, fixed plate; 1097, spring telescopic rod 1; 1098, cleaning agent storage box; 1099, filter box; 10910, chuck; 10911, connecting plate; 1092, shaft plate; 1093, sleeve; 1094, outer handle; 1095, insert; 1096, fixed plate; 1097, spring telescopic rod 1; 1098, cleaning agent storage box; 1099, filter box; 10911, chuck; 10912, chuck; 10913, chuck; 10914, chuck; 10915, chuck; 10916, chuck; 10917, chuck; 10918, chuck; 10919, chuck; 10920, chuck; 10921, chuck; 10922, chuck; 10923, chuck; 10924, chuck; 10925, chuck; 10926, chuck; 10927, chuck; 10928, chuck; 10929, chuck; 10930, chuck; 10931 911. reinforcing rib; 10912. inner handle; 2. upper guide rod; 3. lower guide rod; 4. plate group; 401. plate one; 402. plate two; 403. plate three; 404. plate four; 5. movable clamping mechanism; 501. rear end plate; 502. slot; 503. slide frame; 504. slide roller; 505. auxiliary supporting member; 5051. groove; 5052. guide rail; 5053. bump; 5054. spring telescopic rod two; 5055. plug; 5056. pull rod; 6. bracket; 7. screw rod; 8. fastening nut. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0018] Embodiment 1

[0019] See also Figure 1-Figure 3 and Figure 5-Figure 11 As shown, the present invention is a plate heat exchanger for an air conditioning unit that is easy to repair, including a fixed pressing mechanism 1, the fixed pressing mechanism 1 is used to support the upper guide rod 2 and the lower guide rod 3, and can press the front end of the plate group 4, the upper guide rod 2 and the lower guide rod 3 are respectively arranged at the top and bottom of the back of the fixed pressing mechanism 1, the upper guide rod 2 and the lower guide rod 3 are used to support the plate group 4 and the movable pressing mechanism 5, the inner side of the upper guide rod 2 and the lower guide rod 3 is provided with a plate group 4, the plate group 4 is used to exchange heat between cold and hot media, and the plate group A movable clamping mechanism 5 is arranged on the back of 4, and the movable clamping mechanism 5 is used to clamp the rear end of the plate group 4. A bracket 6 is arranged at the rear ends of the upper guide rod 2 and the lower guide rod 3, and the bracket 6 is used to support the upper guide rod 2 and the lower guide rod 3. Multiple groups of screw rods 7 are symmetrically arranged on the sides of the fixed clamping mechanism 1 and the movable clamping mechanism 5. The rear ends of the outer walls of the screw rods 7 are threadedly connected with fastening nuts 8. The screw rods 7 and the fastening nuts 8 are used to connect the fixed clamping mechanism 1 and the movable clamping mechanism 5 together, so as to clamp the plate group 4 arranged on the inner side thereof; The fixing and clamping mechanism 1 includes a front end plate 101, the bottom end of the front end plate 101 is connected to two feet 102 by bolt threads, the feet 102 are used to install the front end plate 101 to the inside of the air-conditioning unit, and an engaging groove 103 is provided at the center of the surface of the upper surface of the front end plate 101, and the engaging groove 103 is used to receive the front end of the upper guide rod 2, and a hot medium inlet 104, a hot medium outlet 105, a cold medium inlet 106 and a cold medium outlet 107 are sequentially provided around the inside of the front end plate 101, which are used to input cold and hot medium into the plate group 4 and discharge the medium after heat exchange, the hot medium inlet 104 and the cold medium outlet 107 are provided at the top of the front end plate 101, and the hot medium outlet 105 and the cold medium inlet 106 are provided at the bottom of the front end plate 101. The front ends of the medium inlet 106 and the cold medium outlet 107 are both connected to the electric valve 108 through flange threads. The electric valve 108 is used to control the opening and closing of multiple medium inlets and outlets. The front ends of the electric valves 108 located at the front ends of the hot medium inlet 104 and the cold medium inlet 106 are both provided with filter components 109. The filter component 109 is used to filter impurities in the medium, and a cleaning agent can be placed in the filter component 109 to clean the plate group 4, making it easy to maintain. The top front end of the upper guide rod 2 is clamped in the inside of the fitting groove 103 and is bolted together with the front end plate 101. The front end of the lower guide rod 3 is attached to the center of the bottom end of the back of the front end plate 101, and is also bolted to the front end plate 101. The front ends of the outer walls of the multiple screw rods 7 are penetrated and arranged on the side of the front end plate 101.

[0020] In this embodiment, preferably, the filter member 109 includes a connecting disk 1091, and the front end of the connecting disk 1091 is fixedly connected to a shaft disk 1092, and the shaft disk 1092 is used to support the sleeve 1093, so that the sleeve 1093 can rotate at the front end of the shaft disk 1092, and the front end of the outer wall of the shaft disk 1092 is rotatably connected to the sleeve 1093, and the sleeve 1093 is used to install the cannula 1095, and the cannula 1095 can be threadedly connected to the inside of the sleeve 1093. The outer wall array of the sleeve 1093 is provided with a plurality of external handles 1094, and the external handles 1094 are used to drive the sleeve 109 3 is rotated, the inner wall of the sleeve 1093 is threadedly connected with a cannula 1095, the cannula 1095 is used to install the fixed disk 1096, the cleaning agent storage box 1098, the filter box 1099 and the chuck 10910, and can be threadedly connected to the inside of the sleeve 1093, the front end of the inner wall of the cannula 1095 is fixedly connected with a fixed disk 1096, the fixed disk 1096 is used to fix the spring telescopic rod 1097, the back center of the fixed disk 1096 is fixedly connected with a spring telescopic rod 1097, the spring telescopic rod 1097 is used to squeeze the cleaning agent storage box 1098, When the enclosure of the cleaning agent storage box 1098 and the filter box 1099 is removed, the cleaning agent storage box 1098 and the filter box 1099 can be popped out from the inside of the intubation tube 1095, and the back of the spring telescopic rod 1097 is fitted with a cleaning agent storage box 1098, which is used to store cleaning agents for heat exchange plates, and the back of the cleaning agent storage box 1098 is clamped with a filter box 1099, which is used to filter impurities contained in cold media or hot media, and can absorb some fine impurities contained therein, and the back of the filter box 1099 is clamped with a filter box 1099. A chuck 10910 is fitted on the part, and the chuck 10910 is used to enclose the filter box 1099. A plurality of reinforcing ribs 10911 are fixedly connected to the inner side of the chuck 10910, and the reinforcing ribs 10911 are used to enhance the overall strength of the chuck 10910. An inner handle 10912 is fixedly connected to the back of the intersection of the plurality of reinforcing ribs 10911, and the inner handle 10912 is used to drive the chuck 10910 to rotate as a whole. The connecting plate 1091 is threadedly connected to the front end of the electric valve 108 by bolts, and the connecting plate 1091 is used to install the filter component 109 as a whole to the front end of the electric valve 108.

[0021] In this embodiment, preferably, the inner wall of the sleeve 1093 and the outer wall of the insert 1095 are respectively processed with matching threads and thread grooves, and the rear end of the inner wall of the insert 1095 is processed with a slot, and the teeth processed on the outer wall of the chuck 10910 are engaged with the inside of the slot.

[0022] In this embodiment, preferably, the inner sides of the front surface and the back of the cleaning agent storage box 1098 are processed with a filter screen 1, and a gasket is processed at the center of the filter screen 1 on the inner side of the front surface of the cleaning agent storage box 1098. Two supporting ribs are arranged at the top and bottom ends of the back of the gasket, and the rear end of the supporting rib is fixedly connected to the inner wall of the cleaning agent storage box 1098. The gasket and the supporting rib are used to support the filter screen 1, strengthen the supporting strength of the filter screen 1, and prevent the filter screen 1 from being damaged by the spring telescopic rod 1097. A dosing port is provided at the center of the filter screen 1 on the inner side. By setting the dosing port, cleaning agent can be added to the cleaning agent storage box 1098. Filter screen 2 is processed on the inner side of the front surface and the back of the filter box 1099. Filter screen 2 is used to filter impurities in cold and hot media, and the pore size of filter screen 1 is larger than that of filter screen 2. The interior of the filter box 1099 is filled with filter material for adsorbing fine impurities in cold and hot media, thereby delaying the scaling rate of the heat exchange plate and reducing the cleaning frequency of the heat exchange plate.

[0023] In this embodiment, preferably, the bottom end of the upper guide rod 2 and the top end of the lower guide rod 3 are both processed with slide rails of the same specifications. Through the set slide rails, plate one 401, plate two 402, plate three 403 and plate four 404 in the plate group 4 can be supported and made to slide on the inner side of the slide rails, thereby guiding the installation of the plate group 4 and installing the movable clamping mechanism 5.

[0024] In this embodiment, preferably, two groove blocks are symmetrically arranged at the top and bottom ends of the front surface of the bracket 6, and the groove blocks are used to clamp the rear ends of the upper guide rod 2 and the lower guide rod 3, so as to facilitate splicing the bracket 6 with the upper guide rod 2 and the lower guide rod 3. The bracket 6 is clamped at the rear ends of the upper guide rod 2 and the lower guide rod 3 through the groove blocks, and is threadedly connected with the upper guide rod 2 and the lower guide rod 3 through bolts. A vertically arranged reinforcing strut is processed on the back of the bracket 6. The reinforcing strut is used to improve the supporting strength of the bracket 6 to avoid deformation after long-term use, which affects the supporting effect of the bracket 6 on the upper guide rod 2 and the lower guide rod 3.

[0025] In summary, when the plate group 4 needs to be cleaned, the hot medium inlet 104, the hot medium outlet 105, the cold medium inlet 106 and the cold medium outlet 107 opened inside the front end plate 101 are first closed through the electric valve 108, and then the outer handle 1094 arranged in the filter mechanism at the front end of the hot medium inlet 104 is pulled, and the outer handle 1094 can be rotated to drive the sleeve 1093 as a whole to rotate with the shaft disk 1092 as the axis, so that the insert 1095 threadedly connected to the inside of the sleeve 1093 can be screwed outward, and after the insert 1095 is screwed out from the inside of the sleeve 1093, the inner handle 10912 is held and rotated, and the chuck 10910 can be driven to rotate as a whole by rotating the inner handle 10912, so that the teeth processed on the outer wall of the chuck 10910 are rotated from the inside of the slot, and then the chuck 109 can be removed after the enclosure behind the teeth is removed. 10 slides out from the inside of the card slot, thereby canceling the enclosure of the filter box 1099. After canceling the enclosure of the filter box 1099, the cleaning agent storage box 1098 can be pushed out from the inside of the insert tube 1095 together with the filter box 1099 through the operation of the spring telescopic rod 1097, so that cleaning agent can be added to the inside of the cleaning agent storage box 1098 or the filter box 1099 can be replaced. After filling the cleaning agent, the cleaning agent storage box 1098 and the filter box 1099 are replaced into the inside of the insert tube 1095, and then the chuck 10910 is re-clamped into the card slot opened at the rear end of the inner wall of the insert tube 1095, and the insert tube 1095 is threadedly connected to the inside of the sleeve 1093, and then the originally closed electric valve 108 is opened, and the plate group 4 can be cleaned by the internal circulation of the cold medium and the hot medium in the plate group 4, which is convenient for its maintenance.

[0026] Embodiment 2

[0027] See also Figure 1-Figure 4As shown, on the basis of embodiment 1, the plate group 4 is composed of plate 1 401, plate 2 402, plate 3 403 and plate 4 404, and the centers of the top and bottom ends of plate 1 401, plate 2 402, plate 3 403 and plate 4 404 are all provided with slide grooves adapted to the specifications of the slide rails, and are slidably connected to the outer walls of the slide rails processed on the inner sides of the upper guide rod 2 and the lower guide rod 3 through the slide grooves, and plate 1 401 and plate 2 402 are respectively used to enclose plate 3 403 at the front end and plate 4 404 at the rear end, and by assembling plate 1 401, plate 3 403, plate 4 404 and plate 2 402 together in sequence, the cold and hot media to be used for heat exchange can flow therein, thereby exchanging heat with the media flowing into the plate group 4, and plate 1 401 and plate 2 402 are connected to the plate group 4. The front surface of plate 01 is bonded to the back of the front end plate 101, the back of plate two 402 is bonded to the front surface of the rear end plate 501, and the inner sides of plate one 401 and plate two 402 are sequentially provided with several groups of plate three 403 and plate four 404 from front to back, the front surface of the frontmost plate three 403 is bonded to the inside of plate one 401, and the back of the rearmost plate four 404 is bonded to the front surface of plate two 402, plate one 401, several plates three 403, several plates four 404 and plate two 402 are all tightly bonded together, and the outer walls of plate one 401, plate two 402, plate three 403 and plate four 404 are all provided with honeycomb heat dissipation holes, and the heat dissipation effect of a single plate can be enhanced by the operation of the set honeycomb heat dissipation holes.

[0028] In the present embodiment, preferably, through holes are provided at positions corresponding to the hot medium inlet 104, the hot medium outlet 105, the cold medium inlet 106 and the cold medium outlet 107 opened inside the front end plate 101 in plate one 401, and baffles are processed at the through holes opened inside plate two 402, and the cold and hot medium can flow in the plate group 4 through the corresponding through holes. The baffles are used to enclose the cold and hot medium flowing through the front end of plate two 402, so that the medium flowing into the plate group 4 through the hot medium inlet 104 and the cold medium inlet 106 is retained from the hot medium outlet 105 and the cold medium outlet 107, thereby completing the heat exchange of the medium.

[0029] Embodiment 3

[0030] See also Figure 1-Figure 3 and Figure 12-13As shown, on the basis of the first and second embodiments, the movable clamping mechanism 5 includes a rear end plate 501, and slots 502 are provided at the center of the top and bottom of the rear end plate 501, and the slots 502 are used to fix a sliding frame 503 on the top of the rear end plate 501, and the sliding frame 503 is used to support a sliding roller 504, and the inner side of the sliding frame 503 is rotatably connected to the sliding roller 504, and the sliding roller 504 can slide on the top of the upper guide rod 2. Through the cooperation between the sliding frame 503 and the sliding roller 504, the rear end plate 501 can slide more smoothly on the outer wall of the upper guide rod 2, and an auxiliary support member 505 is provided at the bottom end of the rear end plate 501, and the auxiliary support member 505 is used to fix the rear end plate 5 The bottom end of 01 is supported so that the rear end plate 501 can distribute the downward pressure on the lower guide rod 3 more evenly, so that the rear end plate 501 can slide more smoothly on the top of the outer wall of the lower guide rod 3. The rear end plate 501 is slidably connected to the outer wall of the slide rail processed on the inner side of the upper guide rod 2 and the lower guide rod 3, and the front surface of the rear end plate 501 is in contact with the back of the plate 2 402. The rear end plate 501 is used to clamp the plate group 4 arranged at its front end. The rear ends of the outer walls of the multiple screw rods 7 are penetrated and arranged on the side of the rear end plate 501. The front surface of the fastening nut 8 is in contact with the back of the rear end plate 501. The sliding frame 503 is sleeved on the outer wall of the upper guide rod 2, and the bottom end of the sliding roller 504 is in contact with the upper surface of the upper guide rod 2.

[0031] In this embodiment, preferably, the auxiliary supporting member 505 includes a groove 5051, the inner wall of the groove 5051 is fixedly connected with a guide rail 5052, the guide rail 5052 is used to support the protrusion 5053, and can limit the movement trajectory of the protrusion 5053, the outer wall of the guide rail 5052 is slidably connected with a protrusion 5053, the protrusion 5053 is used to fix the plug-in block 5055 and the pull rod 5056, and the protrusion 5053 can be driven to slide inside the groove 5051 through the pull rod 5056, thereby driving the plug-in block 5055 to move, and the outer side of the protrusion 5053 is fixedly connected with a spring telescopic rod 5054, the spring telescopic rod 5054 is used to reset the protrusion 5053, and when the protrusion 5053 slides to the outer side of the groove 5051, the spring telescopic rod 5054 will shrink, thereby The spring is deformed, and after the pulling on the protrusion 5053 is cancelled, the rebound force generated by the contraction of the spring hand can restore the spring telescopic rod 2 to its original position, thereby resetting the protrusion 5053. An insert block 5055 is fixedly connected to the inner side of the protrusion 5053, and the insert block 5055 can be inserted into the inner side of the lower guide rod 3. A pull rod 5056 is fixedly connected to the outer bottom end of the protrusion 5053, and the pull rod 5056 is used to drive the protrusion 5053 to move. A groove 5051 is opened in the inner bottom end of the rear end plate 501, and the groove 5051 is used to fix the guide rail 5052 and the spring telescopic rod 2 5054, and a sliding space for the protrusion 5053 is reserved. The outer side of the spring telescopic rod 2 5054 is fixedly connected to the inner side of the groove 5051, and the insert block 5055 is inserted into the inner side of the lower guide rod 3.

[0032] In summary, after the fixed pressing mechanism 1, the upper guide rod 2 and the lower guide rod 3 are installed, the plate 1 401 in the plate group 4 is first slidably connected to the inner side of the upper guide rod 2 and the lower guide rod 3, and the front surface of the plate 1 401 is fitted to the back of the front end plate 101, and then a combination of a plate 4 404 is arranged after a plate 3 403 is fitted, and several groups of plate 3 403 and plate 4 404 are slidably connected to the inner side of the upper guide rod 2 and the lower guide rod 3 in turn. After installing multiple groups of plate 3 403 and plate 4 404, the plate 2 402 is also slidably connected to the inner side of the upper guide rod 2 and the lower guide rod 3, and the front surface of the plate 2 402 is fitted to the back of the front end plate 101. The back of the plate four 404 at the end can complete the arrangement of the plate group 4. Afterwards, the rear end plate 501 in the movable clamping mechanism 5 is slidably connected to the inner sides of the upper guide rod 2 and the lower guide rod 3 through the slot 502, and the sliding frame 503 is sleeved on the outer wall of the upper guide rod 2. At the same time, the pull rod 5056 in the auxiliary support member 505 at the bottom end of the rear end plate 501 is pulled outward, and the protrusion 5053 is driven to slide outward by the pull rod 5056, so that the plug block 5055 is driven to slide to the outside of the rear end plate 501 by the protrusion 5053, so that the plug block 5055 can be avoided from the rear end end of the lower guide rod 3, so that the bottom end of the rear end plate 501 can also slide After the upper and lower guide rods 501 are connected to the inside of the lower guide rod 3, the pull rod 5056 is loosened, and the protrusion 5053 can be reset through the operation of the spring telescopic rod 2 5054, so that the plug block 5055 is inserted into the inside of the lower guide rod 3, thereby supporting the bottom end of the rear end plate 501 through the auxiliary support member 505, and the rear end plate 501 is slidably connected to the inner side of the upper guide rod 2 and the lower guide rod 3, so that the front surface of the rear end plate 501 is attached to the back of the plate 2 402, and then the screw rod 7 is inserted from the inner side of the front end plate 101, and passes through the inner side of the rear end plate 501 corresponding to the inner side of the front end plate 101, so that the screw rod 7 is penetrated to the front end plate 101 and the inner side of the rear end plate 501, and then thread the fastening nut 8 from the rear end of the screw rod 7 to the outer wall of the screw rod 7, and make the front surface of the fastening nut 8 fit to the back of the rear end plate 501, through the mutual cooperation between the front end plate 101, the rear end plate 501, the screw rod 7 and the fastening nut 8, the plate group 4 arranged on the inner side of the front end plate 101 and the rear end plate 501 can be pressed and fixed, thereby completing the preliminary installation of the heat exchanger, finally, the bracket 6 is clamped to the rear end of the outer wall of the upper guide rod 2 and the lower guide rod 3 through two groove blocks symmetrically arranged at its front end, and the bracket 6 is combined with the upper guide rod 2 and the lower guide rod 3 by bolts.

[0033] Embodiment 4

[0034] See also Figure 1-Figure 13As shown, the present embodiment is obtained by combining the first embodiment, the second embodiment and the third embodiment. When the plate heat exchanger for the air-conditioning unit that is easy to repair is installed and used, the user first fixes and clamps the mechanism 1, the upper guide rod 2 and the lower guide rod 3 together by bolts, and then slides the plate 1 401 in the plate group 4 to the inner side of the upper guide rod 2 and the lower guide rod 3, and then slides and connects several groups of plate 3 403 and plate 4 404 in the order of one plate 3 403 and one plate 4 404. The number of plates 3 403 and plate 4 404 is installed according to the heat exchange flow requirement. Then, The plate group 4 is installed by sliding the plate 2 402 to the inner side of the upper guide rod 2 and the lower guide rod 3, and making the front surface of the plate 2 402 fit the back of the plate 3 403 at the rear end. Then the rear plate 501 in the movable clamping mechanism 5 is slidably connected to the inner side of the upper guide rod 2 and the lower guide rod 3, so that the front surface of the rear plate 501 fits the back of the plate 2 402. Then, a plurality of screw rods 7 are set through the inner side of the front plate 101 and the rear plate 501, and the rear plate 501 is pressed by tightening the nut 8. Finally, the bracket 6 is installed to the upper guide rod 2 and the lower guide rod 3. The rear end, that is, the assembly of the plate heat exchanger is completed. After that, the plate heat exchanger is placed at the position where it needs to be installed in the air-conditioning unit, and the bottom end of the foot 102 and the bracket 6 are bolted together with the air-conditioning unit. After the heat exchanger body has been used for a period of time, scale will form in the plate group 4. At this time, the outer handle 1094 in the filter component 109 is pulled, and the sleeve 1093 is driven to rotate by the outer handle 1094, so that the insert 1095 can be screwed out from the inside of the sleeve 1093, and then the clamping connection between the chuck 10910 and the rear end of the inner wall of the insert 1095 is cancelled, and the spring telescopic rod is used to By working of 1097, the cleaning agent storage box 1098 and the filter box 1099 can be popped out from the inside of the insert tube 1095, so that the cleaning agent for the heat exchanger plates can be added into the cleaning agent storage box 1098. After adding the cleaning agent, the filter component 109 can be reinstalled. Through the working of the filter component 109, the heat exchange medium flowing into the plate group 4 can be filtered, thereby slowing down the scaling rate of the plate group 4, and when the plate group 4 needs to be cleaned, cleaning agent can be added to the cleaning agent storage box 1098 to facilitate the cleaning of the plate group 4, making it easy to carry out daily maintenance and repair.

[0035] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of application of the present invention.

Claims

1. A plate heat exchanger for an air conditioning unit that is easy to maintain, characterized in that: It comprises a fixed clamping mechanism, wherein an upper guide rod and a lower guide rod are respectively arranged at the top and bottom of the back of the fixed clamping mechanism, a plate group is arranged on the inner side of the upper guide rod and the lower guide rod, a movable clamping mechanism is arranged on the back of the plate group, a bracket is arranged at the rear end of the upper guide rod and the lower guide rod, and multiple groups of screw rods are symmetrically arranged on the side surfaces of the fixed clamping mechanism and the movable clamping mechanism, and a fastening nut is threadedly connected to the rear end of the outer wall of the screw rod; The fixing and pressing mechanism comprises a front end plate, the bottom end of the front end plate is threadedly connected to two base feet by bolts, and the center of the upper surface of the front end plate is provided with an embedding groove, and a hot medium inlet, a hot medium outlet, a cold medium inlet and a cold medium outlet are sequentially provided around the interior of the front end plate, and the hot medium inlet and the cold medium outlet are opened at the top of the front end plate, and the hot medium outlet and the cold medium inlet are opened at the bottom end of the front end plate, and the front ends of the hot medium inlet, the hot medium outlet, the cold medium inlet and the cold medium outlet are all threadedly connected to an electric valve through a flange, and the front ends of the electric valves located at the front ends of the hot medium inlet and the cold medium inlet are both provided with filter components, the top front end of the upper guide rod is clamped in the embedding groove and is combined with the front end plate by bolts, the front end of the lower guide rod is attached to the center of the bottom end of the back of the front end plate, and is also combined with the front end plate by bolts, and the outer wall front ends of the plurality of screw rods are penetrated and arranged on the side of the front end plate.

2. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 1, characterized in that: The filter component includes a connecting disk, a shaft disk is fixedly connected to the front end of the connecting disk, a sleeve is rotatably connected to the front end of the outer wall of the shaft disk, a plurality of outer handles are arranged in an array on the outer wall of the sleeve, a plug is threadedly connected to the inner wall of the sleeve, a fixed disk is fixedly connected to the front end of the inner wall of the plug, a spring telescopic rod 1 is fixedly connected to the center of the back of the fixed disk, a cleaning agent storage box is fitted on the back of the spring telescopic rod 1, a filter box is clamped on the back of the cleaning agent storage box, a chuck is fitted on the back of the filter box, a plurality of reinforcing ribs are fixedly connected to the inner side of the chuck, an inner handle is fixedly connected to the back of the intersection of the plurality of reinforcing ribs, and the connecting disk is threadedly connected to the front end of the electric valve by bolts.

3. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 2, characterized in that: The inner wall of the sleeve and the outer wall of the insert are respectively processed with matching threads and thread grooves, and the rear end of the inner wall of the insert is processed with a clamping groove, and the clamping teeth processed on the outer wall of the chuck are clamped in the inside of the clamping groove.

4. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 2, characterized in that: The front surface and the inner side of the back of the cleaning agent storage box are both processed with filter mesh 1, and a gasket is processed at the center of filter mesh 1 on the inner side of the front surface of the cleaning agent storage box. Two supporting ribs are arranged at the top and bottom ends of the back of the gasket, and the rear ends of the supporting ribs are fixedly connected to the inner wall of the cleaning agent storage box. A dosing port is opened at the center of filter mesh 1 on the inner side of the back of the cleaning agent storage box, filter mesh 2 is processed on the inner side of the front surface and the back of the filter box, and the aperture of filter mesh 1 is larger than that of filter mesh 2, and the interior of the filter box is filled with filter material.

5. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 1, characterized in that: The bottom end of the upper guide rod and the top end of the lower guide rod are both processed with slide rails of the same specifications.

6. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 1, characterized in that: Two slot blocks are symmetrically arranged at the top and bottom ends of the front surface of the bracket. The bracket is clamped on the rear ends of the upper guide rod and the lower guide rod through the slot blocks, and is threadedly connected with the upper guide rod and the lower guide rod through bolts. A vertically arranged reinforcing support rod is processed on the back of the bracket.

7. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 1, characterized in that: The plate group consists of plate one, plate two, plate three and plate four, and the centers of the top and bottom ends of the plate one, plate two, plate three and plate four are all provided with slide grooves that are compatible with the slide rail specifications, and are slidably connected to the outer walls of the slide rails processed on the inner sides of the upper guide rod and the lower guide rod through the slide grooves. The front surface of the plate one is bonded to the back of the front end plate, and the back of the plate two is bonded to the front surface of the rear end plate. The inner sides of the plate one and the plate two are sequentially provided with several groups of plate three and plate four from front to back, the front surface of the frontmost plate three is bonded to the inside of the plate one, and the back of the plate four at the rear end is bonded to the front surface of the plate two, the plate one, several plates three, several plates four and the plate two are all tightly fitted together, and the outer walls of the plate one, plate two, plate three and plate four are all provided with honeycomb heat dissipation holes.

8. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 7, characterized in that: The plates 1, 2, 3 and 4 are provided with through holes at positions corresponding to the hot medium inlet, hot medium outlet, cold medium inlet and cold medium outlet opened inside the front end plate, and a baffle is processed at the through hole opened inside the plate 2.

9. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 1, characterized in that: The movable clamping mechanism includes a rear end plate, wherein slots are opened at the centers of the top and bottom of the rear end plate, the top of the rear end plate is fixedly connected with a sliding frame, the inner side of the sliding frame is rotatably connected with a sliding roller, and the bottom end of the rear end plate is provided with an auxiliary supporting member, the rear end plate is slidably connected to the outer wall of the slide rail processed on the inner sides of the upper guide rod and the lower guide rod, and the front surface of the rear end plate is attached to the back of the plate piece 2, the outer wall rear ends of the plurality of screw rods are penetrated and arranged on the side of the rear end plate, the front surface of the fastening nut is attached to the back of the rear end plate, the sliding frame is sleeved on the outer wall of the upper guide rod, and the bottom end of the sliding roller is attached to the upper surface of the upper guide rod.

10. The plate heat exchanger for an air-conditioning unit that is easy to maintain according to claim 9, characterized in that: The auxiliary support member includes a groove, the inner wall of the groove is fixedly connected to a guide rail, the outer wall of the guide rail is slidably connected to a protrusion, the outer side of the protrusion is fixedly connected to a spring telescopic rod 2, the inner side of the protrusion is fixedly connected to an insertion block, the outer bottom end of the protrusion is fixedly connected to a pull rod, the groove is opened inside the bottom end of the rear end plate, the outer side of the spring telescopic rod 2 is fixedly connected to the inner side of the groove, and the insertion block is inserted into the side of the lower guide rod.

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