Pipeline connecting device and boron expansion machine table

Abstract

The utility model discloses a pipeline connecting device and a boron expansion machine table, which are applied to pipeline connection, and the pipeline connecting device comprises an acid discharge pipeline joint, a first annular boss is arranged at one end of the acid discharge pipeline joint, and the other end of the acid discharge pipeline joint is used for being communicated with an acid discharge main pipeline; the fastener is used for being mounted on an exhaust pipe of the diaphragm pump; one end of the clamping sleeve straight-through joint is connected with the fastener, the other end of the clamping sleeve straight-through joint is connected with the acid discharge pipeline joint, a second annular boss is arranged at one end, close to the acid discharge pipeline joint, of the clamping sleeve straight-through joint, and the first annular boss is matched with the second annular boss; and the clamp connecting piece is used for locking or unlocking the first annular boss and the second annular boss. The pipeline connecting device is high in disassembly and assembly efficiency, good in stability and reliable in connection.

Description

Technical Field

[0001] This utility model relates to pipe connection, and in particular to a pipe connection device and a boron expansion machine. Background Technology

[0002] In the boron expansion process of solar cells, the boron source is one of the main reactants. During the process, waste such as acid gas and boron powder will be generated. In order to remove acid gas and dust, a diaphragm pump is generally used to pressurize the pump. The acid gas and dust are then discharged through the acid discharge pipe joint of the boron expansion machine to the main acid discharge pipe outside the workshop. In order to ensure that acid gas and dust do not leak, the interface between the exhaust pipe of the diaphragm pump and the acid discharge pipe joint needs to have good sealing and joint strength.

[0003] In related technologies, the acid discharge pipe joints of mainstream boron expander machines generally use PP (Polypropylene) pipes, which are connected to the exhaust pipe of the diaphragm pump through threaded joints. However, in these technologies, the threaded connection is prone to insufficient sealing after routine maintenance and disassembly of the boron expander machine, leading to leakage of acid gas and dust, and corrosion of the machine. Furthermore, the interface pipe diameter of the acid discharge pipe joints in these technologies is DN15, which is relatively small, making it easy for acid discharge dust to clog, thus reducing the lifespan and maintenance cycle of the diaphragm pump.

[0004] Therefore, how to improve the ease of disassembly and assembly between the acid discharge pipe joint and the diaphragm pump exhaust pipe is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a pipe connection device and a boron expansion machine, which can improve the reliability of the connection between the acid discharge pipe joint and the exhaust pipe of the diaphragm pump and facilitate disassembly and assembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pipe connection device, comprising:

[0008] The acid discharge pipe joint has a first annular boss at one end and is used to connect to the main acid discharge pipe at the other end.

[0009] Fasteners used for mounting on the exhaust pipe of a diaphragm pump;

[0010] The compression fitting straight connector has one end connected to the fastener and the other end connected to the acid drain pipe connector. The end of the compression fitting straight connector near the acid drain pipe connector is provided with a second annular boss, and the first annular boss and the second annular boss are adapted to each other.

[0011] A clamp connector, which is used to lock or unlock the first annular boss and the second annular boss.

[0012] On the other hand, the fastener is a fastening nut, and the end of the ferrule straight connector is provided with a threaded connection part, and the fastening nut is threadedly connected to the threaded connection part.

[0013] On the other hand, the fastener has a pipeline connection part at one end away from the ferrule straight connector, and the exhaust pipe of the diaphragm pump is connected to the pipeline connection part at the upper limit in the extension direction of the exhaust pipe. The exhaust pipe of the diaphragm pump extends into the acid discharge pipeline joint after passing through the fastener and the ferrule straight connector.

[0014] On the other hand, the threaded bottom of the threaded connection is provided with a stop surface, and the ferrule straight connector is provided with a lever part on one end of the periphery near the threaded connection, and the cross-section of the lever part is polygonal.

[0015] On the other hand, it also includes a sealing component located between the fastener and the ferrule straight connector.

[0016] On the other hand, the sealing component includes a first frustum and a second frustum, with the first frustum and the larger diameter end of the second frustum connected; the inner circumference of the fastener is provided with a first frustum surface that matches the first frustum, and the inner circumference of the ferrule through connector is provided with a second frustum surface that matches the second frustum.

[0017] On the other hand, it also includes an elastic sealing ring, which is located between the first annular boss and the second annular boss. When the clamp connector locks the first annular boss and the second annular boss, the first annular boss and the second annular boss compress the sealing ring.

[0018] On the other hand, the sealing ring is attached to the first annular boss or the second annular boss, and the inner circumference of the sealing ring is provided with an annular metal reinforcement.

[0019] On the other hand, the nominal diameter of the acid discharge pipe joint is 40-60mm, and the compression fitting is adapted to the shape and size of the acid discharge pipe joint.

[0020] This utility model also provides a boron expansion machine, including the pipe connection device described in any one of the above.

[0021] The pipe connection device provided by this utility model includes: an acid discharge pipe joint, one end of which is provided with a first annular boss, and the other end is used to communicate with the acid discharge main pipe; a fastener, used to be installed on the exhaust pipe of the diaphragm pump; a compression fitting straight connector, one end of which is connected to the fastener, and the other end of which is connected to the acid discharge pipe joint, and the end of the compression fitting straight connector near the acid discharge pipe joint is provided with a second annular boss, the first annular boss and the second annular boss being adapted to each other; and a clamp connector, which is used to lock or unlock the first annular boss and the second annular boss. The pipeline connection device provided by this utility model involves setting an acid discharge pipeline joint on the main acid discharge pipeline, and then connecting the acid discharge pipeline joint to the exhaust pipe of the diaphragm pump using a compression fitting straight connector. The compression fitting straight connector and the discharge pipeline joint are connected by a clamp connector. A first annular boss is provided on the acid discharge pipeline joint, and a second annular boss is provided on the compression fitting straight connector, which facilitates the assembly of the clamp connector. The compression fitting straight connector and the exhaust pipe of the diaphragm pump are connected and fixed by fasteners. After the fasteners are connected to the compression fitting straight connector, no further disassembly is required. When pipeline maintenance is needed, disassembly and assembly can be performed only through the clamp connector, resulting in high efficiency, good stability, and reliable connection.

[0022] The boron expansion machine provided by this utility model is equipped with the above-mentioned pipe connection device. Since the pipe connection device has the above-mentioned technical effects, the boron expansion machine equipped with the pipe connection device should also have the corresponding technical effects. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 An exploded view of one specific embodiment of the pipe connection device provided by this utility model;

[0025] Figure 2 This is a cross-sectional view of the pipe connection device provided by this utility model;

[0026] Figure 3 A perspective view of the pipe connection device provided by this utility model without the installation of clamp connectors;

[0027] Figure 4 for Figure 3Another perspective view of the pipe connection device shown;

[0028] Figure 5 This is a schematic diagram showing the installation position of the sealing ring in the pipe connection device provided by this utility model;

[0029] Figure 6 This is a schematic diagram showing the position of the stop surface of the pipe connection device provided by this utility model.

[0030] Figure label:

[0031] Acid discharge pipe joint 1; first annular boss 11; fastener 2; pipe connection part 21; compression fitting straight connector 3; second annular boss 31; threaded connection part 32; stop surface 33; lever part 34; clamp connector 4; sealing component 5; first truncated cone part 51; second truncated cone part 52; sealing ring 6; metal reinforcement 61. Detailed Implementation

[0032] The core of this invention is to provide a pipeline connection device and a boron expander, which can effectively improve the service life and maintenance cycle of diaphragm pumps and save costs.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please refer to Figures 1 to 6 In this embodiment, the pipe connection device includes:

[0035] Acid discharge pipe joint 1 has a first annular boss 11 at one end and is used to connect with the acid discharge main pipe at the other end;

[0036] Fastener 2 is used to install on the exhaust pipe of the diaphragm pump;

[0037] The compression fitting straight connector 3 is connected to the fastener 2 at one end and to the acid drain pipe connector 1 at the other end. The compression fitting straight connector 3 is provided with a second annular boss 31 at the end near the acid drain pipe connector 1. The first annular boss 11 is adapted to the second annular boss 31.

[0038] Clamp connector 4 is used to lock or unlock the first annular boss 11 and the second annular boss 31.

[0039] Specifically, the acid discharge pipe connector 1 and the acid discharge main pipe can be fixedly connected. During use, the acid discharge pipe connector 1 and the acid discharge main pipe do not need to be disassembled. For example, they can be connected by self-adhesive silicone strips or welding, or other connection methods can be used. The acid discharge pipe connector 1 can be a circular pipe, and the first annular boss 11 is a circular boss, which facilitates the connection and fixation of the clamp connector 4. Similarly, the clamp straight connector 3 can also be a circular pipe, and the second annular boss 31 is a circular boss. The dimensions of the first annular boss 11 and the second annular boss 31 can be the same, and the fixation by the clamp connector 4 will be more stable. In order to ensure the sealing effect between the clamp straight connector 3 and the acid discharge pipe connector 1, and between the clamp straight connector 3 and the exhaust pipe of the diaphragm pump, sealing rings 6, sealing gaskets, and other components can be set. Furthermore, the fastener 2 and the clamp straight connector 3 can be connected by threads or other snap-fit ​​connections. Furthermore, the clamp connector 4 can be a stainless steel clamp, which has high strength and can be reused.

[0040] This pipeline connection device involves installing an acid discharge pipe joint 1 on the main acid discharge pipeline, and then connecting the acid discharge pipe joint 1 to the exhaust pipe of the diaphragm pump using a compression fitting straight connector 3. The compression fitting straight connector 3 and the discharge pipe joint are connected by a clamp connector 4. A first annular boss 11 is provided on the acid discharge pipe joint 1, and a second annular boss 31 is provided on the compression fitting straight connector 3, facilitating the assembly of the clamp connector 4. The compression fitting straight connector 3 and the exhaust pipe of the diaphragm pump are connected and fixed by fasteners 2. After the fasteners 2 are connected to the compression fitting straight connector 3, no further disassembly is required. When pipeline maintenance is needed, disassembly and assembly can be performed only through the clamp connector 4, resulting in high efficiency, good stability, and reliable connection.

[0041] In some embodiments, the fastener 2 is a fastening nut, and the end of the ferrule straight connector 3 is provided with a threaded connection part 32. The fastening nut is threadedly connected to the threaded connection part 32. Specifically, the fastening nut can be a hexagonal nut for easy fastening. The fastener 2 is installed on the exhaust pipe of the diaphragm pump. By tightening the fastener 2 to the threaded connection part 32 on the ferrule straight connector 3, the tightening and fixing between the exhaust pipe of the diaphragm pump and the ferrule straight connector 3 can be achieved.

[0042] In some embodiments, the fastener 2 has a pipe connection portion 21 at the end opposite to the ferrule straight connector 3. The diaphragm pump's exhaust pipe is connected to the pipe connection portion 21 in the extending direction of the exhaust pipe, and the diaphragm pump's exhaust pipe extends into the acid discharge pipe connector 1 after passing through the fastener 2 and the ferrule straight connector 3. Specifically, the fastener 2 can be sleeved on the diaphragm pump's exhaust pipe. For example, a limiting lever portion 34 is provided on the diaphragm pump's exhaust pipe, and the pipe connection portion 21 is provided on the fastener 2. The limiting ring on fastener 2 has an inner diameter that matches the outer diameter of the diaphragm pump's exhaust pipe. The limiting ring of fastener 2 is located on the side of the limiting lever part 34 away from the ferrule straight connector 3, which can effectively prevent the diaphragm pump's exhaust pipe from coming off the fastener 2. Furthermore, the outlet of the diaphragm pump's exhaust pipe extends into the acid discharge pipe connector 1 after passing through the fastener 2 and the ferrule straight connector 3, ensuring that the acid gas and dust in the diaphragm pump's exhaust pipe are smoothly discharged into the acid discharge main pipe.

[0043] In some implementations, such as Figure 1 and Figure 6 The threaded connection part 32 has a stop surface 33 at the bottom of the thread. The stop surface 33 is used to limit the tightening limit position of the fastener 2. The ferrule straight connector 3 has a wrench part 34 on the periphery of one end near the threaded connection part 32. The cross-section of the wrench part 34 is polygonal. That is to say, both the ferrule straight connector 3 and the fastener 2 can be provided with a structure similar to a hexagonal bolt. The above settings are to facilitate the use of a wrench to fix the fastener 2 and the ferrule straight connector 3. It is convenient to operate and has good tightening efficiency. After the fastener 2 and the ferrule straight connector 3 are tightened, they do not need to be disassembled in subsequent routine maintenance.

[0044] In some embodiments, a sealing component 5 is also included, which is located between the fastener 2 and the ferrule straight connector 3, and is used to ensure a sealing effect between the fastener 2 and the ferrule straight connector 3.

[0045] In some implementations, such as Figure 1As shown, the sealing component 5 includes a first frustum 51 and a second frustum 52, with the larger diameter ends of the first frustum 51 and the second frustum 52 connected. The inner circumference of the fastener 2 is provided with a first frustum surface that matches the first frustum 51, and the inner circumference of the ferrule straight connector 3 is provided with a second frustum surface that matches the second frustum 52. Specifically, the second frustum surface is located on the threaded connection portion 32. When the fastener 2 and the ferrule straight connector 3 are tightened, the first frustum surface of the fastener 2 presses against the first frustum 51 on the sealing component 5, and the second frustum surface of the ferrule straight connector 3 presses against the second frustum 52 on the sealing component 5. After the fastener 2 and the ferrule straight connector 3 are assembled, the first frustum surface fits against the circumferential surface of the first frustum 51, and the second frustum surface fits against the circumferential surface of the second frustum 52, thereby ensuring a sealing effect. The sealing component 5 can be a metal part, which is reliable and has a long service life.

[0046] In some implementations, such as Figure 4 and Figure 5 As shown, it also includes an elastic sealing ring 6, which is located between the first annular boss 11 and the second annular boss 31. When the clamp connector 4 locks the first annular boss 11 and the second annular boss 31, the first annular boss 11 and the second annular boss 31 compress the sealing ring 6. By compressing the sealing ring 6, on the one hand, the sealing effect between the first annular boss 11 and the second annular boss 31 can be improved. On the other hand, under the elastic force of the sealing ring 6, the first annular boss 11 and the second annular boss 31 can be pushed to move in opposite directions, thereby improving the connection stability between the first annular boss 11, the second annular boss 31 and the clamp connector 4.

[0047] In some embodiments, the sealing ring 6 is adhered to the first annular boss 11 or the second annular boss 31. Specifically, adhesive or other components can be provided on the sealing ring 6. When it is necessary to connect the first annular boss 11 and the second annular boss 31, the sealing ring 6 is first adhered to the first annular boss 11 or the second annular boss 31 to ensure the positional accuracy of the sealing ring 6. Alternatively, a receiving groove can be provided on the first annular boss 11 or the second annular boss 31, and the sealing ring 6 can be placed into the receiving groove. Any method that can ensure a good sealing effect between the first annular boss 11 and the second annular boss 31 is acceptable.

[0048] In some embodiments, the side of the first annular boss 11 and the second annular boss 31 that are opposite to each other is also provided with an inlet slope. When the clamp connector 4 is fastened, the groove edge of the clamp connector 4 first abuts against the inlet slope, thereby pushing the first annular boss 11 and the second annular boss 31 closer to each other, while squeezing the sealing ring 6. This method can improve the assembly efficiency of the clamp connector 4 and improve its reliability.

[0049] In some embodiments, an annular metal reinforcement 61 is provided on the inner circumference of the sealing ring 6. Specifically, the sealing ring 6 can be a rubber sealing ring 6, which has good elasticity and good sealing effect. Since the clamp connector 4 will squeeze the first annular boss 11 and the second annular boss 31 when connecting the first annular boss 11 and the second annular boss 31, thereby squeezing the sealing ring 6, in order to avoid the sealing ring 6 being squeezed and deformed and unable to seal, an annular metal reinforcement 61 is used and is set on the inner circumference of the sealing ring 6 to strengthen the sealing ring 6 and reduce the risk of deformation failure.

[0050] In some embodiments, the nominal diameter of the acid discharge pipe joint 1 is 40-60mm, and the shape and size of the compression fitting straight connector 3 are adapted to the acid discharge pipe joint 1. Specifically, the pipe diameter of the acid discharge pipe joint 1 can be DN40-DN60. For example, a DN40 PP short pipe can be selected. Compared with the DN15 PP short pipe in the related technology, the increased pipe diameter of the acid discharge pipe joint 1 can improve the acid discharge efficiency, improve the blockage problem at the interface between the acid discharge pipe joint 1 and the compression fitting straight connector 3, extend the maintenance cycle of the acid discharge pipe, and improve the life of the diaphragm pump.

[0051] Specifically, in one embodiment, during the high-temperature process of solar cell manufacturing, when modifying the acid discharge pipeline of the boron expansion machine, a self-adhesive silicone strip is first used to connect the main acid discharge pipeline and the acid discharge pipeline connector 1, thereby increasing the diameter of the acid discharge pipeline interface and improving the acid discharge effect. A KF40 flared to 3 / 4 compression fitting straight connector 3 is used to connect to the acid discharge pipeline connector 1, and a KF40 clamp connector 4 is used for fixation. The other end of the compression fitting straight connector 3 is threaded to the exhaust pipe of the diaphragm pump. This section of the diaphragm pump exhaust pipe runs through the entire compression fitting straight connector 3, and the compression fitting straight connector 3 and the acid discharge pipeline connector 1 do not need to be disassembled during maintenance, which can avoid joint leakage and solve the problem of acid discharge exhaust gas and dust leakage caused by sealing issues. Of course, KF40-60 clamp connectors 4 can also be used, and the same effect can be achieved with the pipe diameter of the acid discharge pipeline connector 1 from DN40 to DN60. This pipeline connection device can improve acid discharge efficiency, solve the problem of acid gas and dust leakage during acid discharge, extend the machine maintenance cycle, solve the machine corrosion problem, and extend the maintenance and service life of the diaphragm pump. Based on the sealing and disassembly considerations of the acid discharge pipeline, this pipeline connection device can be applied to machines or pipelines of different brands in the photovoltaic cell manufacturing industry, and can achieve improved sealing and convenient maintenance and disassembly.

[0052] Furthermore, after six months of operation following a complete overhaul of the boron expansion machine in mass production using the pipeline connection device provided by this utility model, it was proven that the acid discharge effect was significantly improved, the problems of acid gas and dust leakage no longer occurred, and the corrosion problems of the machine and its accessories were solved. Specifically, a comparison of the maintenance cycle before and after the production line acid discharge pipeline modification showed that after the modification, the acid discharge maintenance cycle was extended by 10 days, a 100% improvement, and the failure frequency of the diaphragm pump decreased by 25%. Of the 96 pumps on site, an average of 20 pumps failed per month before the modification, while after the modification, 5 fewer diaphragm pumps were required for maintenance per month, effectively saving costs. Moreover, by using clamp connectors 4 for fixed connection, and changing the interface pipe diameter from DN15 to DN40, the connection between the diaphragm pump exhaust pipe and the acid discharge pipeline joint 1 is easier to maintain and disassemble, while ensuring the sealing of the joint, preventing the leakage of acid gas and dust, and solving the corrosion problems of the machine and diaphragm pump.

[0053] In addition to the aforementioned pipe connection device, this utility model also provides a boron expansion machine base including the aforementioned pipe connection device. For the structure of other parts of the boron expansion machine base, please refer to relevant technologies, which will not be described in detail here.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0055] The pipe connection device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A pipe connection device, characterized in that, include: The acid discharge pipe joint (1) has a first annular boss (11) at one end and is used to connect with the acid discharge main pipe at the other end. Fastener (2) is used to install on the exhaust pipe of the diaphragm pump; The compression fitting straight connector (3) is connected to the fastener (2) at one end and to the acid drain pipe connector (1) at the other end. The compression fitting straight connector (3) is provided with a second annular boss (31) at one end near the acid drain pipe connector (1). The first annular boss (11) is adapted to the second annular boss (31). Clamp connector (4), which is used to lock or unlock the first annular boss (11) and the second annular boss (31).

2. The pipe connection device according to claim 1, characterized in that, The fastener (2) is a fastening nut, and the end of the ferrule straight connector (3) is provided with a threaded connection part (32), and the fastening nut is threadedly connected to the threaded connection part (32).

3. The pipe connection device according to claim 2, characterized in that, The fastener (2) has a pipe connection part (21) at one end away from the ferrule straight connector (3). The exhaust pipe of the diaphragm pump is connected to the pipe connection part (21) at the upper limit in the extension direction of the exhaust pipe. The exhaust pipe of the diaphragm pump extends into the acid discharge pipe connector (1) after passing through the fastener (2) and the ferrule straight connector (3).

4. The pipe connection device according to claim 2, characterized in that, The threaded connection part (32) has a stop surface (33) at the bottom of the thread, and the ferrule straight connector (3) has a lever part (34) on one end of the periphery near the threaded connection part (32), and the cross-section of the lever part (34) is polygonal.

5. The pipe connection device according to any one of claims 1 to 4, characterized in that, It also includes a sealing component (5) located between the fastener (2) and the ferrule straight connector (3).

6. The pipe connection device according to claim 5, characterized in that, The sealing component (5) includes a first frustum portion (51) and a second frustum portion (52), with one end of the first frustum portion (51) connected to one end of the second frustum portion (52); the inner circumference of the fastener (2) is provided with a first frustum surface that is adapted to the first frustum portion (51), and the inner circumference of the ferrule straight connector (3) is provided with a second frustum surface that is adapted to the second frustum portion (52).

7. The pipe connection device according to any one of claims 1 to 4, characterized in that, It also includes an elastic sealing ring (6), which is located between the first annular boss (11) and the second annular boss (31). When the clamp connector (4) locks the first annular boss (11) and the second annular boss (31), the first annular boss (11) and the second annular boss (31) squeeze the sealing ring (6).

8. The pipe connection device according to claim 7, characterized in that, The sealing ring (6) is attached to the first annular boss (11) or the second annular boss (31), and the inner circumference of the sealing ring (6) is provided with an annular metal reinforcement (61).

9. The pipe connection device according to any one of claims 1 to 4, characterized in that, The nominal diameter of the acid discharge pipe joint (1) is 40-60mm, and the shape and size of the compression fitting straight connector (3) are adapted to the acid discharge pipe joint (1).

10. A boron expansion machine, comprising a pipe connection device, characterized in that, The pipe connection device is the pipe connection device according to any one of claims 1 to 9.

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