Connection structure of high-temperature heat pump and pipeline

Abstract

The utility model discloses a high temperature heat pump and pipeline's connecting structure applies in connecting structure technical field, including first fixed flange and fixed mechanism, one side of first fixed flanger is provided with second fixed flange, install metal bellows between first fixed flange and second fixed flange, the surface of first fixed flange and second fixed flange is respectively symmetrical and is welded with first connecting block and second connecting block, one side of first connecting block is welded with screw rod, another end of screw rod is penetrated to the outside of second connecting block and is screwed with first nut. Can possess stress compensation function, play certain stretching effect, can absorb and offset the additional stress that produces because of thermal expansion and cold shrink, prolongs the service life of pipeline, and safety is high, can realize external protection effect is good simultaneously, reduces the influence and damage that external factor causes to connecting structure, alleviates the maintenance burden of personnel, and the practicality is high.

Description

Technical Field

[0001] This utility model belongs to the field of connection structure technology, and specifically relates to a connection structure between a high-temperature heat pump and a pipeline. Background Technology

[0002] A high-temperature heat pump is a highly efficient and energy-saving device that converts low-temperature heat energy into high-temperature heat energy through a reverse Carnot cycle. It is mainly used for industrial heating and zero-carbon park construction. When using a high-temperature heat pump, it needs to be connected to a pipeline for discharge, and the interface flange of the heat pump and the interface flange of the pipeline need to be fixed by a connection structure.

[0003] Although existing connection structures have sealing rings affixed to the flange connections to improve the sealing effect after connection, there are still other problems during use. For example, they lack stress compensation function. Since the pipeline mainly transmits high-temperature heat energy, the pipeline will expand under the influence of heat energy. If the additional stress caused by temperature difference is not compensated in time, it will easily cause pipeline damage and reduce the service life of the pipeline. Moreover, the external protection effect is poor. When subjected to impact and collision, it is easy to break and be damaged. Long-term exposure to rain can easily cause rust, increasing the maintenance burden on personnel. Utility Model Content

[0004] The purpose of this utility model is to provide a connection structure between a high-temperature heat pump and a pipeline, which has the advantages of stress compensation function and good external protection effect.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a connection structure between a high-temperature heat pump and a pipeline, including a first fixed flange and a fixing mechanism, a second fixed flange is provided on one side of the first fixed flange, a metal bellows is installed between the first fixed flange and the second fixed flange, a first connecting block and a second connecting block are symmetrically welded to the surfaces of the first fixed flange and the second fixed flange, a threaded rod is welded to one side of the first connecting block, the other end of the threaded rod passes through to the outside of the second connecting block and is threadedly connected to a first nut, a protective cylinder is slidably sleeved on the surface of the first fixed flange, an mounting plate is fixedly sleeved on the surface of the protective cylinder, two baffles are bolted to one side of the protective cylinder, a through groove is opened inside the baffle, and a plug is inserted into the other side of the baffle.

[0006] The above technical solution can provide stress compensation and stretching effect, absorb and offset additional stress caused by thermal expansion and contraction, extend the service life of the pipeline, ensure high safety, provide good external protection, reduce the impact and damage of external factors on the connection structure, reduce the maintenance burden on personnel, and is highly practical.

[0007] The present invention is further configured such that the fixing mechanism includes four fixing bolts, which respectively penetrate through the outside of the first fixing flange and the second fixing flange, and the surface of the fixing bolts is threaded with a second nut.

[0008] The above technical solution allows for the connection of the other side of the first and second fixed flanges to the heat pump interface flange and the pipe flange, respectively, through the use of fixing bolts and second nuts, resulting in good stability.

[0009] The present invention is further configured such that the first fixed flange, the second fixed flange, and the metal bellows are all made of stainless steel.

[0010] The above technical solution features high strength, low density, and excellent corrosion resistance in the first fixed flange, the second fixed flange, and the metal bellows.

[0011] The present invention is further configured such that sealing rings are adhered to the other side of both the first fixed flange and the second fixed flange.

[0012] By adopting the above technical solution, the sealing effect between the other side of the first and second fixed flanges and the heat pump interface flange and the pipe flange can be improved by setting the sealing ring.

[0013] The present invention is further configured such that four mounting holes are provided on one side of the mounting plate.

[0014] The above technical solution allows for easy connection of the mounting plate to the heat pump housing using screws, reducing the burden of temporary drilling.

[0015] The present invention is further provided that the surfaces of the protective cylinder, the mounting plate and the baffle are all coated with anti-corrosion coating.

[0016] By adopting the above technical solution, the anti-corrosion and moisture-proof effects of the protective cylinder, mounting plate and baffle surface can be improved through the application of anti-corrosion coating.

[0017] In summary, this utility model has the following beneficial effects: 1. Before use, first put the protective sleeve on the pipe and push it back. After the protective sleeve is put on, lift the first fixed flange so that the side sealing ring fits with the heat pump interface flange. Then insert the fixing bolt through and turn it with the second nut to fix it. After the first fixed flange is fixed, lift the pipe interface flange and fit it with the side sealing ring of the second fixed flange. Finally, insert the fixing bolt through and turn it with the second nut to fix it. Finally, turn the first nut inward to adjust the distance of the pipe interface flange. It can have stress compensation function and play a certain stretching effect. It can absorb and offset the additional stress caused by thermal expansion and contraction, extend the service life of the pipeline, and has high safety. 2. After the pipe is connected, grasp the protective sleeve on the pipe and pull it forward. After the protective sleeve is pulled all the way forward, it will be placed outside the first and second connecting blocks and fit against the heat pump shell. Then, use screws to connect it to the heat pump shell through the mounting holes. After the protective sleeve is fixed, insert the two baffles into the pipe and fix them to the protective sleeve with screws. After the baffles are fixed, pick up the plug strip and insert it into the baffle. This can achieve good external protection, reduce the impact and damage of external factors on the connection structure, reduce the maintenance burden of personnel, and has high practicality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front sectional view of the structure of this utility model; Figure 3 This is the utility model Figure 2 Enlarged diagram of point A in the middle.

[0019] Reference numerals in the attached drawings: 1. First fixed flange; 2. Second fixed flange; 3. Metal bellows; 4. First connecting block; 5. Second connecting block; 6. Screw rod; 7. First nut; 8. Fixing mechanism; 81. Fixing bolt; 82. Second nut; 9. Protective sleeve; 10. Mounting plate; 11. Baffle; 12. Plug strip; 13. Sealing ring; 14. Mounting hole. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1: Reference Figure 1 , Figure 2 and Figure 3A connection structure between a high-temperature heat pump and a pipeline includes a first fixed flange 1 and a fixing mechanism 8. A second fixed flange 2 is provided on one side of the first fixed flange 1. A metal bellows 3 is installed between the first fixed flange 1 and the second fixed flange 2. A first connecting block 4 and a second connecting block 5 are symmetrically welded to the surfaces of the first fixed flange 1 and the second fixed flange 2, respectively. A threaded rod 6 is welded to one side of the first connecting block 4. The other end of the threaded rod 6 passes through the outside of the second connecting block 5 and is threaded with a first nut 7. Before use, a protective sleeve 9 is first put on the pipeline and pushed backward. After the protective sleeve 9 is put on, the first fixed flange 1 is closed. Lift the pipe interface flange so that the side sealing ring 13 fits against the heat pump interface flange. Then, insert the fixing bolt 81 through and tighten it with the second nut 82. After the first fixing flange 1 is fixed, lift the pipe interface flange and fit it against the side sealing ring 13 of the second fixing flange 2. Finally, insert the fixing bolt 81 through and tighten it with the second nut 82. Finally, rotate the first nut 7 inward to adjust the distance between the pipe interface flanges. This has a stress compensation function and a certain stretching effect. It can absorb and offset the additional stress caused by thermal expansion and contraction, extend the service life of the pipeline, and has high safety.

[0022] refer to Figure 1 , Figure 2 and Figure 3 The fixing mechanism 8 includes four fixing bolts 81. The four fixing bolts 81 pass through the outside of the first fixing flange 1 and the second fixing flange 2 respectively. The surface of the fixing bolts 81 is threaded with a second nut 82. With the setting of the fixing bolts 81 and the second nut 82, the other side of the first fixing flange 1 and the second fixing flange 2 can be connected to the heat pump interface flange and the pipe flange respectively, which has good stability.

[0023] refer to Figure 1 , Figure 2 and Figure 3 The first fixed flange 1, the second fixed flange 2, and the metal bellows 3 are all made of stainless steel. The first fixed flange 1, the second fixed flange 2, and the metal bellows 3 have the characteristics of high strength, low density, and excellent corrosion resistance.

[0024] refer to Figure 3 A sealing ring 13 is bonded to the other side of both the first fixed flange 1 and the second fixed flange 2. The sealing ring 13 can improve the sealing effect between the other side of the first fixed flange 1 and the second fixed flange 2 and the heat pump interface flange and the pipe flange.

[0025] Brief description of the usage process: Before use, first put the protective sleeve 9 on the pipe and push it backward. After the protective sleeve 9 is put on, lift the first fixing flange 1 so that the side sealing ring 13 fits with the heat pump interface flange. Then, insert the fixing bolt 81 through and turn it in with the second nut 82 to fix it. After the first fixing flange 1 is fixed, lift the pipe interface flange and fit it with the side sealing ring 13 of the second fixing flange 2. Finally, insert the fixing bolt 81 through and turn it in with the second nut 82 to fix it. Finally, turn the first nut 7 inward to adjust the distance of the pipe interface flange.

[0026] Example 2: Reference Figure 1 and Figure 2 A connection structure for a high-temperature heat pump and a pipeline is disclosed. A protective sleeve 9 is slidably fitted onto the surface of a first fixed flange 1. An mounting plate 10 is fixedly fitted onto the surface of the protective sleeve 9. Two baffles 11 are bolted to one side of the protective sleeve 9. A through groove is opened inside the baffle 11. A plug strip 12 is inserted into the other side of the baffle 11. After the pipeline is connected, the protective sleeve 9 fitted onto the pipeline is grasped and pulled forward. After the protective sleeve 9 is pulled all the way forward, it will be placed outside the first connecting block 4 and the second connecting block 5 and fit against the heat pump shell. Then, a screw is passed through the mounting hole 14 and connected to the heat pump shell. After the protective sleeve 9 is fixed, the two baffles 11 are snapped into the pipeline and fixed to the protective sleeve 9 with screws. After the baffles 11 are fixed, the plug strip 12 is picked up and inserted into the baffle 11. This structure can achieve good external protection, reduce the impact and damage of external factors on the connection structure, reduce the maintenance burden on personnel, and has high practicality.

[0027] refer to Figure 1 The mounting plate 10 has four mounting holes 14 on one side, which provides good extension effect, offsets the additional stress caused by thermal expansion and contraction, extends the service life of the pipeline, and ensures high safety.

[0028] refer to Figure 1 and Figure 2 The surfaces of the protective cylinder 9, mounting plate 10 and baffle 11 are all coated with anti-corrosion paint. The anti-corrosion and moisture-proof effects of the surfaces of the protective cylinder 9, mounting plate 10 and baffle 11 can be improved by the application of anti-corrosion paint.

[0029] Brief description of the usage process: After the pipe is connected, grasp the protective sleeve 9 on the pipe and pull it forward. After the protective sleeve 9 is pulled all the way forward, it will be placed outside the first connecting block 4 and the second connecting block 5 and fit against the heat pump shell. Then, use screws to pass through the mounting hole 14 and connect it to the heat pump shell. After the protective sleeve 9 is fixed, insert the two baffles 11 into the pipe and fix them to the protective sleeve 9 with screws. After the baffles 11 are fixed, pick up the plug strip 12 and insert it into the baffle 11.

[0030] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A connection structure between a high-temperature heat pump and a pipeline, comprising a first fixed flange (1) and a fixing mechanism (8), characterized in that: A second fixed flange (2) is provided on one side of the first fixed flange (1). A metal bellows (3) is installed between the first fixed flange (1) and the second fixed flange (2). A first connecting block (4) and a second connecting block (5) are symmetrically welded to the surfaces of the first fixed flange (1) and the second fixed flange (2), respectively. A screw rod (6) is welded to one side of the first connecting block (4). The other end of the screw rod (6) passes through to the outside of the second connecting block (5) and is threaded with a first nut (7). A protective sleeve (9) is slidably sleeved on the surface of the first fixed flange (1). An installation plate (10) is fixedly sleeved on the surface of the protective sleeve (9). Two baffles (11) are bolted to one side of the protective sleeve (9). A through groove is opened inside the baffle (11). A plug strip (12) is inserted into the other side of the baffle (11).

2. The connection structure between a high-temperature heat pump and a pipeline according to claim 1, characterized in that: The fixing mechanism (8) includes four fixing bolts (81). The four fixing bolts (81) extend through the outside of the first fixing flange (1) and the second fixing flange (2), respectively. The surface of the fixing bolts (81) is threaded with a second nut (82).

3. The connection structure between a high-temperature heat pump and a pipeline according to claim 1, characterized in that: The first fixed flange (1), the second fixed flange (2) and the metal bellows (3) are all made of stainless steel.

4. The connection structure between a high-temperature heat pump and a pipeline according to claim 1, characterized in that: A sealing ring (13) is bonded to the other side of both the first fixed flange (1) and the second fixed flange (2).

5. The connection structure between a high-temperature heat pump and a pipeline according to claim 1, characterized in that: The mounting plate (10) has four mounting holes (14) on one side.

6. The connection structure between a high-temperature heat pump and a pipeline according to claim 1, characterized in that: The surfaces of the protective cylinder (9), mounting plate (10) and baffle (11) are all coated with anti-corrosion paint.

Images