Flexible connector

Abstract

The utility model provides a flexible connector. The flexible connector is used for connecting a first pipeline and a second pipeline. The flexible connector comprises a first installation component and a second installation component, a second mounting member; the flexible connector is provided with a mounting through hole, the flexible connector is provided with a first end and a second end which are oppositely arranged along the axis of the mounting through hole, the first end is connected to the first pipeline through a first mounting component, and the second end is connected to the second pipeline through a second mounting component; the wear-resistant lining is of a tubular structure with an internal through hole, the wear-resistant lining is mounted in the mounting through hole, the wear-resistant lining extends from the first end to the second end along the axis of the mounting through hole, and the internal through hole is configured to be capable of communicating the first pipeline and the second pipeline. According to the technical scheme, the problem that in the prior art, the service life of flexible connection is short is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of potassium chloride production, and in particular, to a flexible connector. Background Art

[0002] A soft connection is a pipe fitting used to connect equipment and pipelines, and is also known as a flexible connection or a soft joint. The main function of the soft connection is to compensate for the displacement generated by the equipment or pipeline during vibration. At the same time, the soft connection also has the function of conveying materials. The main materials of the soft connection are one of silicone, rubber, polytetrafluoroethylene, etc. However, the soft connection has limitations in the production process of potassium chloride. During the drying process of potassium chloride, flue gas containing corrosive dust and gas medium will be generated. Therefore, it is necessary to recover the above-mentioned flue gas containing corrosive dust and gas medium. During the process of recovering the dust of potassium chloride products, the corrosive dust and gas medium will flow into the soft connection through the pipeline. The corrosive dust and gas medium will cause wear to the soft connection, and due to the relatively large particle size of potassium fertilizer, the flexible connection part is worn more seriously. In this way, not only the service life of the soft connection will be reduced, but also too many wear points in the soft connection will affect the operating temperature of the entire potassium chloride production system, resulting in a decrease in the overall flue gas temperature and an increased risk of condensation. Summary of the Utility Model

[0003] The main purpose of the present utility model is to provide a flexible connector to solve the problem of the low service life of the soft connection in the prior art.

[0004] To achieve the above purpose, the present utility model provides a flexible connector for connecting a first pipeline and a second pipeline. The flexible connector includes: a first mounting member; a second mounting member; a soft connection body having a mounting through-hole. Along the axis of the mounting through-hole, the soft connection body has a first end and a second end arranged oppositely. The first end is connected to the first pipeline through the first mounting member, and the second end is connected to the second pipeline through the second mounting member; a wear-resistant inner lining, which is a tubular structure with an internal through-hole. The wear-resistant inner lining is installed in the mounting through-hole. Along the axis of the mounting through-hole, the wear-resistant inner lining extends from the first end towards the second end, and the internal through-hole is configured to be able to communicate the first pipeline and the second pipeline.

[0005] Further, the thickness of the wear-resistant inner lining is greater than or equal to 1 mm and less than or equal to 2 mm.

[0006] Further, the wear-resistant inner lining is one of a stainless steel elbow, a stainless steel sleeve, and a stainless steel bellows.

[0007] Further, the first mounting member includes: a first flange including a first sleeve and a first annular plate connected to the first sleeve, the first annular plate being configured to be connected to a pipe flange, and a first end of the flexible connection body being located on the outer periphery of the first sleeve; a first hoop located on the outer periphery of the first end of the flexible connection body, the first hoop being used to press the first end of the flexible connection body against the first sleeve.

[0008] Further, the flexible connector further includes: a flange plate connected to one end of the wear-resistant inner lining, and an annular plate located between the pipe flange and the first annular plate; a locking member and an anti-disengagement member, the locking member passing through the first annular plate, the annular plate, and the pipe flange and then connecting to the anti-disengagement member.

[0009] Further, the flexible connector further includes a compression sleeve located between the first end of the flexible connection body and the first sleeve, and one end of the wear-resistant inner lining is pressed between the first sleeve and the compression sleeve.

[0010] Further, the second mounting member includes: a second flange including a second sleeve and a second annular plate connected to the second sleeve, the second annular plate being configured to be connected to a pipe flange, and a second end of the flexible connection body being located on the outer periphery of the second sleeve; a second hoop located on the outer periphery of the second end of the flexible connection body, the second hoop being used to press the second end of the flexible connection body against the second sleeve.

[0011] Further, the second mounting member includes a second hoop located on the outer periphery of the second end of the flexible connection body, the second hoop being used to press the second end of the flexible connection body against the second pipeline.

[0012] Further, along the axis of the inner through hole, there is a gap between the end of the second pipeline and the wear-resistant inner lining.

[0013] Further, the flexible connection body includes an inner layer and an outer layer, the inner layer includes a stainless steel wire sandwich cloth and a fluororubber-coated cloth, the outer layer is made of a silicone rubber-coated cloth, and along the radial direction of the mounting through hole, from the inside to the outside, the stainless steel wire sandwich cloth, the fluororubber-coated cloth, and the silicone rubber-coated cloth are arranged in sequence.

[0014] Further, the flexible connection body further includes a sandwich layer, and at least one sandwich layer is provided between the inner layer and the outer layer, and the sandwich layer is made of a heat-insulating material or a corrosion-resistant material.

[0015] Applying the technical solution of the present utility model, by installing the wear-resistant lining in the installation through-hole of the flexible connection body, the flexible connector can form a combined structure of the flexible connection body and the wear-resistant lining. Compared with only setting the flexible connection body, in the present utility model, during the process of recovering potassium chloride flue gas, the corrosive dust and gas medium can flow from the first pipeline into the internal through-hole of the wear-resistant lining, and then flow from the internal through-hole of the wear-resistant lining into the second pipeline. In this way, it can be avoided that the corrosive dust and gas medium directly impact the flexible connection body. On the one hand, it can reduce the corrosion of the corrosive dust and gas medium on the flexible connection body, and on the other hand, it can also reduce the wear of the corrosive dust and gas medium on the flexible connection body; in this way, it can avoid the further aggravation of the wear of the flexible connection body, not only can extend the service life of the flexible connection body, but also can avoid the phenomenon of excessive wear points on the flexible connection body, thereby avoiding affecting the operating temperature of the entire system, avoiding the overall reduction of the flue gas temperature, and further reducing the probability of condensation risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 Fig. 9 shows a schematic structural diagram of the first embodiment of the flexible connector of the present utility model;

[0018] Figure 2 Fig. 13 shows a schematic structural diagram of the second embodiment of the flexible connector of the present utility model;

[0019] Figure 3 Fig. 17 shows a schematic structural diagram of the third embodiment of the flexible connector of the present utility model;

[0020] Figure 4 Fig. 21 shows a schematic structural diagram of the fourth embodiment of the flexible connector of the present utility model.

[0021] Among them, the above-mentioned drawings include the following reference numerals:

[0022] 1, first pipeline; 2, second pipeline; 10, first installation member; 20, second installation member; 3, flexible connection body; 4, wear-resistant lining; 101, first sleeve; 102, first annular plate; 13, first hoop; 5, flange plate; 6, locking member; 7, anti-disengagement member; 8, compression sleeve; 12, pipe flange; 211, second sleeve; 212, second annular plate; 22, second hoop. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will describe the present utility model in detail with reference to the accompanying drawings and in combination with the embodiments.

[0024] As Figures 1 to 4 shown, an embodiment of the present utility model provides a flexible connector. The flexible connector includes: a first mounting member 10; a second mounting member 20; a soft connection body 3 having a mounting through-hole, along the axis of the mounting through-hole, the soft connection body 3 has a first end and a second end arranged oppositely, the first end is connected to the first pipeline 1 through the first mounting member 10, and the second end is connected to the second pipeline 2 through the second mounting member 20; a wear-resistant inner lining 4, which is a tubular structure with an internal through-hole, the wear-resistant inner lining 4 is installed in the mounting through-hole, along the axis of the mounting through-hole, the wear-resistant inner lining 4 extends from the first end towards the second end, and the internal through-hole is configured to be able to communicate the first pipeline 1 and the second pipeline 2.

[0025] In the above technical solution, by installing the wear-resistant inner lining 4 in the mounting through-hole of the soft connection body 3, the flexible connector can form a combined structure of the soft connection body and the wear-resistant inner lining. Compared with only setting the soft connection body 3, in the present utility model, during the process of recovering potassium chloride flue gas, corrosive dust and gas media can flow from the first pipeline 1 into the internal through-hole of the wear-resistant inner lining 4, and then flow from the internal through-hole of the wear-resistant inner lining 4 into the second pipeline 2. In this way, it can be avoided that the corrosive dust and gas media directly impact the soft connection body 3. On the one hand, it can reduce the corrosion of the corrosive dust and gas media on the soft connection body 3, and on the other hand, it can also reduce the abrasion of the corrosive dust and gas media on the soft connection body 3; in this way, it can be avoided that the abrasion of the soft connection body 3 is further aggravated, which can not only extend the service life of the soft connection body 3, but also avoid the phenomenon that there are too many wear points on the soft connection body 3, so as to avoid affecting the operating temperature of the entire system, so as to avoid a decrease in the overall flue gas temperature, and further reduce the probability of condensation risk.

[0026] As Figure 1 to as Figure 4 shown, in the embodiment of the present utility model, the thickness of the wear-resistant inner lining 4 is greater than or equal to 1 mm and less than or equal to 2 mm.

[0027] In the above technical solution, by setting the thickness of the wear-resistant inner lining 4 to be greater than or equal to 1 mm, the problem of deformation due to the too thin thickness of the wear-resistant inner lining 4 can be avoided, so as to avoid the problem of low service life of the wear-resistant inner lining 4, thereby reducing the replacement cost of the wear-resistant inner lining 4; by setting the thickness of the wear-resistant inner lining 4 to be less than or equal to 2 mm, the production cost can be reduced, thereby avoiding the occurrence of waste of production materials.

[0028] It should be noted that in the embodiment of the present invention, the end of the wear-resistant lining 4 should be polished to prevent the end of the wear-resistant lining 4 from damaging the material of the inner wall surface of the flexible connector 3. The end of the wear-resistant lining 4 refers to the end of the wear-resistant lining 4 facing the second pipeline 2.

[0029] like Figures 1 to 4 As shown, in the embodiment of the utility model, the wear-resistant lining 4 is one of a stainless steel elbow, a stainless steel sleeve and a stainless steel bellows.

[0030] In the above technical solution, by adopting stainless steel material, on the one hand, the corrosion resistance and wear resistance of the wear-resistant lining 4 can be improved, thereby extending the service life of the wear-resistant lining 4 and further extending the service life of the flexible connector; on the other hand, stainless steel material also has good heat resistance.

[0031] Specifically, in the embodiment of the utility model, when the first pipeline 1 and the second pipeline 2 are arranged at an angle, the wear-resistant lining 4 adopts a stainless steel elbow, so that it can guide the airflow so that the airflow can flow more smoothly from the first pipeline 1 through the stainless steel elbow to the second pipeline 2, preventing the airflow from impacting the flexible connector 3.

[0032] Specifically, in the embodiment of the utility model, when the first pipeline 1 and the second pipeline 2 are arranged in parallel and the axes of the first pipeline 1 and the second pipeline 2 coincide, the wear-resistant lining 4 adopts a stainless steel sleeve, so that it can guide the airflow so that the airflow can flow more smoothly from the first pipeline 1 through the stainless steel elbow to the second pipeline 2, preventing the airflow from impacting the flexible connector 3.

[0033] Specifically, in the embodiment of the utility model, when the first pipeline 1 and the second pipeline 2 are arranged in parallel and the axes of the first pipeline 1 and the second pipeline 2 do not overlap, the wear-resistant lining 4 adopts a stainless steel bellows, so that it can guide the airflow, so that the airflow can flow more smoothly from the first pipeline 1 through the stainless steel elbow to the second pipeline 2, preventing the airflow from impacting the flexible connector 3.

[0034] like Figures 1 to 4 As shown, in the embodiment of the present invention, along the axis of the internal through hole, there is a gap between the end of the second pipeline 2 and the wear-resistant lining 4.

[0035] Through the above-mentioned arrangement, on the one hand, direct contact between the end of the second pipeline 2 and the wear-resistant lining 4 can be avoided, so as to prevent the wear-resistant lining 4 from damaging the inner wall surface of the second pipeline 2; on the other hand, the gap between the second pipeline 2 and the wear-resistant lining can form a vibration margin to compensate for the displacement of the second pipeline 2 during vibration, so as to avoid damage to the flexible connector due to axial vibration of the second pipeline 2.

[0036] In one embodiment, the outer diameter of the wear-resistant inner lining 4 is smaller than the inner diameter of the second pipeline 2, and the wear-resistant inner lining 4 can extend into the second pipeline 2 without generating a large local resistance or a large eddy current. In this way, there is also a vibration margin between the wear-resistant inner lining 4 and the second pipeline 2, avoiding the fracture of the flexible connector caused by the axial vibration of the second pipeline 2.

[0037] As Figures 1 to 4 shown, in the embodiment of the present invention, the flexible connection body 3 includes an inner layer and an outer layer. The inner layer includes a stainless steel wire sandwiching fiber cloth and a fluororubber-coated cloth, and the outer layer is made of a silicone rubber-coated cloth. Along the radial direction of the installation through hole, from the inside to the outside, the stainless steel wire sandwiching fiber cloth, the fluororubber-coated cloth, and the silicone rubber-coated cloth are arranged in sequence.

[0038] In the above technical solution, the outer fabric of the flexible connection body 3 is made of an anti-ultraviolet material, and the inner layer is made of acid-resistant, wear-resistant, and high-temperature-resistant materials. In this way, the corrosion resistance, wear resistance, and high-temperature resistance of the flexible connection body 3 can be further improved, thereby increasing the service life of the flexible connection body 3.

[0039] Specifically, in the embodiment of the present invention, the silicone rubber-coated cloth has excellent properties such as aging resistance, cold resistance, and heat resistance, and the long-term temperature resistance can be in the range of -70° to 250°.

[0040] Specifically, in the embodiment of the present invention, the fluororubber-coated cloth has excellent properties such as high-temperature resistance, acid and alkali resistance, and wear resistance, and the long-term temperature resistance is 250° and below 250°.

[0041] Specifically, in the embodiment of the present invention, the stainless steel wire sandwiching fiber cloth has excellent properties such as high-temperature resistance, acid and alkali resistance, and wear resistance, and the long-term temperature resistance is 250° and below 250°.

[0042] Specifically, in the embodiment of the present invention, the fluororubber-coated cloth is a high-performance industrial material. The fluororubber-coated cloth consists of two layers. The bottom layer is a reinforcing base cloth made of high-temperature-resistant and high-strength fiber materials (such as glass fiber, aramid fiber); the upper layer is a fluororubber coating, which is a special synthetic rubber with excellent chemical corrosion resistance and high-temperature resistance.

[0043] Specifically, in the embodiment of the present invention, the silicone rubber-coated cloth is a composite material composed of a base cloth and a silicone rubber coating. The base cloth is made of various fiber materials (such as glass fiber, polyester fiber, nylon), and silicone rubber is a synthetic rubber known for its excellent temperature resistance, electrical insulation, and aging resistance.

[0044] Specifically, in the embodiments of the present utility model, the stainless steel wire sandwich fabric is a special reinforcing material, usually composed of a fiber substrate and the sandwiched stainless steel wires. The sandwiched stainless steel wires provide additional strength and wear resistance, making the fiber fabric more durable.

[0045] As Figure 1 to as Figure 4 shown, in the embodiments of the present utility model, the flexible connection body 3 further includes a sandwich layer, and at least one sandwich layer is provided between the inner layer and the outer layer. The sandwich layer is made of a heat-insulating material or a corrosion-resistant material.

[0046] Through the above settings, the high-temperature resistance or corrosion resistance of the flexible connector can be further improved, so as to avoid the occurrence of damage to the flexible connector, thereby increasing the service life of the flexible connector.

[0047] It should be noted that in the embodiments of the present utility model, the corrosion-resistant material is also called a corrosion-resistant material, which refers to those substances with high stability and corrosion resistance under the action of chemical media. For example, Teflon (PTFE) and carbon fiber are corrosion-resistant materials.

[0048] It should be noted that in the embodiments of the present utility model, between the flexible connection materials of the inner layer and the outer layer, multiple sandwich layers can be provided according to pressure, temperature, and usage requirements, and the materials of the sandwich layers can be selected.

[0049] It should be noted that in the embodiments of the present utility model, the multiple layers of materials of the flexible connection body 3 are not limited to two or more layers to ensure its structural strength and sealing performance.

[0050] It should be noted that in the embodiments of the present utility model, as an alternative wear material for the flexible connection body 3, it should satisfy the convenience of processing, manufacturing, and replacement, and at the same time not affect the performance requirements of the flexible connector.

[0051] Embodiment 1

[0052] As Figure 1 shown, in Embodiment 1 of the present utility model, the first mounting member 10 includes: a first flange, including a first sleeve 101 and a first annular plate 102 connected to the first sleeve 101. The first annular plate 102 is configured to be connected to the pipe flange 12, and the first end of the flexible connection body 3 is located on the outer periphery of the first sleeve 101; a first hoop 13, located on the outer periphery of the first end of the flexible connection body 3, and the first hoop 13 is used to press the first end of the flexible connection body 3 against the first sleeve 101.

[0053] In the above technical solution, by providing the first hoop 13, the first end of the flexible connection body 3 can be connected to the first flange, and then connected to the pipeline flange 12 through the first flange, so as to realize the connection between the first flange and the first pipeline 1. In this way, the connection between the first end of the flexible connection body 3 and the first pipeline 1 can be realized.

[0054] Specifically, in the first embodiment of the present invention, the pipeline flange 12 includes a third sleeve and a third annular plate. Among them, the third sleeve is sleeved on the outer periphery of the first pipeline 1, and the third annular plate is connected to the first annular plate 102, so as to realize the connection between the first flange and the pipeline flange 12.

[0055] Specifically, in the first embodiment of the present invention, the first hoop 13 includes a hoop body and bolts. The hoop body is composed of two half rings, and the bolts are used to connect the two hoop bodies. The material of the hoop body can be one of cast steel, forged steel, steel plate or stainless steel. The specific structure of the hoop can refer to the prior art and will not be elaborated here.

[0056] As Figure 1 shown, in the first embodiment of the present invention, the flexible connector further includes: a flange plate 5 connected to one end of the wear-resistant lining 4, and the flange plate 5 is located between the pipeline flange 12 and the first annular plate 102; a locking member 6 and an anti-disengagement member 7, and the locking member 6 passes through the first annular plate 102, the flange plate 5 and the pipeline flange 12 and then is connected to the anti-disengagement member 7.

[0057] In the above technical solution, by providing the locking member 6 and the anti-disengagement member 7, the first annular plate 102, the flange plate 5 and the pipeline flange 12 can be connected together and the flange plate 5 can be connected between the pipeline flange 12 and the first annular plate 102. In this way, the wear-resistant lining 4 can be installed inside the flexible connection body 3 through the flange plate 5.

[0058] Specifically, in the first embodiment of the present invention, the locking member 6 is a bolt, the anti-disengagement member 7 is a nut, and two nuts are provided.

[0059] As Figure 1 shown, in the first embodiment of the present invention, the second mounting member 20 includes: a second flange, including a second sleeve 211 and a second annular plate 212 connected to the second sleeve 211, and the second annular plate 212 is configured to be connected to the pipeline flange 12, and the second end of the flexible connection body 3 is located on the outer periphery of the second sleeve 211; a second hoop 22 located on the outer periphery of the second end of the flexible connection body 3, and the second hoop 22 is used to press the second end of the flexible connection body 3 against the second sleeve 211.

[0060] In the above technical solution, by providing the second clamp 22, the second end of the flexible connection body 3 can be connected to the second flange, and then connected to the pipeline flange 12 through the second flange, so as to realize the connection between the second flange and the second pipeline 2. In this way, the connection between the second end of the flexible connection body 3 and the second pipeline 2 can be realized.

[0061] Embodiment 2

[0062] As Figure 2 shown, the difference between the second embodiment and the first embodiment of the present invention is that the second flange and the pipeline flange 12 are not provided in the second embodiment. Specifically, the second mounting member 20 includes a second clamp 22, and the second clamp 22 is located on the outer periphery of the second end of the flexible connection body 3. The second clamp 22 is used to press the second end of the flexible connection body 3 against the second pipeline 2.

[0063] In the above technical solution, by providing the second clamp 22, the connection between the second end of the flexible connection body 3 and the second pipeline 2 can be realized, so that the air flow can smoothly enter the second pipeline 2 from the first pipeline 1 and the flexible connector in sequence.

[0064] The other structures of the second embodiment are the same as those of the first embodiment and will not be elaborated here.

[0065] Embodiment 3

[0066] As Figure 3 shown, in the third embodiment of the present invention, the first mounting member 10 includes: a first flange, including a first sleeve 101 and a first annular plate 102 connected to the first sleeve 101. The first annular plate 102 is configured to be connected to the pipeline flange 12, and the first end of the flexible connection body 3 is located on the outer periphery of the first sleeve 101; a first clamp 13, located on the outer periphery of the first end of the flexible connection body 3. The first clamp 13 is used to press the first end of the flexible connection body 3 against the first sleeve 101.

[0067] In the above technical solution, by providing the first clamp 13, the first end of the flexible connection body 3 can be connected to the first flange, and then connected to the pipeline flange 12 through the first flange, so as to realize the connection between the first flange and the first pipeline 1. In this way, the connection between the first end of the flexible connection body 3 and the first pipeline 1 can be realized.

[0068] Specifically, in the first embodiment of the present invention, the pipeline flange 12 includes a third sleeve and a third annular plate. Among them, the third sleeve is sleeved on the outer periphery of the first pipeline 1, and the third annular plate is connected to the first annular plate 102, thereby realizing the connection between the first flange and the pipeline flange 12.

[0069] Specifically, in the third embodiment of the present utility model, the first hoop 13 includes a hoop body and bolts. The hoop body consists of two semi-circular rings, and the bolts are used to connect the two hoop bodies. The material of the hoop body can be one of cast steel, forged steel, steel plate or stainless steel. The specific structure of the hoop can refer to the prior art and will not be elaborated here.

[0070] As Figure 3 shown, in the third embodiment of the present utility model, the flexible connector further includes a compression sleeve 8. The compression sleeve 8 is located between the first end of the flexible connection body 3 and the first sleeve 101, and one end of the wear-resistant inner lining 4 is pressed between the first sleeve 101 and the compression sleeve 8.

[0071] In the above technical solution, by providing the compression sleeve 8, the wear-resistant inner lining 4 can be pressed onto the first sleeve 101, thereby fixing the wear-resistant inner lining 4 inside the flexible connection body 3.

[0072] Specifically, in the third embodiment of the present utility model, the compression sleeve 8 is provided with a plurality of protrusions. The plurality of protrusions are arranged at intervals along the circumferential direction of the compression sleeve 8. The wear-resistant inner lining 4 is provided with a plurality of grooves. The plurality of grooves are arranged at intervals along the circumferential direction of the wear-resistant inner lining. The plurality of protrusions and the plurality of grooves are in limiting cooperation. In this way, the wear-resistant inner lining 4 can be prevented from moving axially, thereby improving the installation stability of the wear-resistant inner lining 4.

[0073] In one embodiment, the compression sleeve 8 can also be provided with an annular rib, and the wear-resistant inner lining 4 is provided with an annular groove. The annular rib and the annular groove are in limiting cooperation. In this way, the wear-resistant inner lining 4 can be prevented from moving axially, thereby improving the installation stability of the wear-resistant inner lining 4.

[0074] As Figure 3 shown, in the third embodiment of the present utility model, the second mounting member 20 includes: a second flange, including a second sleeve 211 and a second annular plate 212 connected to the second sleeve 211. The second annular plate 212 is configured to be connected to the pipe flange 12. The second end of the flexible connection body 3 is located on the outer periphery of the second sleeve 211; a second hoop 22, located on the outer periphery of the second end of the flexible connection body 3. The second hoop 22 is used to press the second end of the flexible connection body 3 onto the second sleeve 211.

[0075] In the above technical solution, by providing the second hoop 22, the second end of the flexible connection body 3 can be connected to the second flange, and then connected to the pipe flange 12 through the second flange to realize the connection between the second flange and the second pipeline 2. In this way, the connection between the second end of the flexible connection body 3 and the second pipeline 2 can be realized.

[0076] Embodiment 4

[0077] As Figure 4As shown in the figure, the difference between the fourth embodiment and the third embodiment of the present utility model is that the second flange and the pipe flange 12 are not provided in the fourth embodiment. Specifically, the second mounting member 20 includes a second hoop 22. The second hoop 22 is located on the outer periphery of the second end of the flexible connection body 3. The second hoop 22 is used to press the second end of the flexible connection body 3 against the second pipeline 2.

[0078] In the above technical solution, by providing the second hoop 22, the connection between the second end of the flexible connection body 3 and the second pipeline 2 can be realized, so that the air flow can smoothly enter the second pipeline 2 from the first pipeline 1 and the flexible connector in sequence.

[0079] The other structures of the fourth embodiment are the same as those of the third embodiment and will not be elaborated here.

[0080] It should be noted that in the embodiments of the present utility model, it is not recommended to fix the flexible connection body 3 in the form of rivets, self-tapping screws, etc., and it is not recommended to fix the wear-resistant inner lining 4 in the form of rivets, self-tapping screws, etc. There should be no protrusions such as screws inside the first pipeline 1 and the second pipeline 2.

[0081] It should be noted that in the embodiments of the present utility model, the flexible connector is developed from the disassembly and installation structures, mainly considering the selection of materials for the flexible connection body 3, the wear-resistant inner lining 4, and the flexible connector material, as well as the combined structure form, in order to facilitate the maintenance and replacement of the flexible connector and ensure the continuity of industrial production.

[0082] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: By installing the wear-resistant inner lining in the installation through hole of the flexible connection body, the flexible connector can form a combined structure of the flexible connection body and the wear-resistant inner lining. Compared with only setting the flexible connection body, in the present utility model, during the process of recovering potassium chloride flue gas, the corrosive dust and gas medium can flow from the first pipeline to the inner through hole of the wear-resistant inner lining, and then flow from the inner through hole of the wear-resistant inner lining to the second pipeline. In this way, it can be avoided that the corrosive dust and gas medium directly impact the flexible connection body. On the one hand, it can reduce the corrosion of the corrosive dust and gas medium on the flexible connection body. On the other hand, it can also reduce the abrasion of the corrosive dust and gas medium on the flexible connection body. In this way, it can avoid the further aggravation of the wear of the flexible connection body, not only can extend the service life of the flexible connection body, but also can avoid the phenomenon of too many wear points on the flexible connection body, thereby avoiding affecting the operating temperature of the entire system, avoiding the reduction of the overall flue gas temperature, and further reducing the probability of the occurrence of the condensation risk.

[0083] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flexible connector, characterized in that, The flexible connector is used to connect a first pipeline (1) and a second pipeline (2), and the flexible connector includes: A first mounting member (10); A second mounting member (20); A flexible connection body (3) having a mounting through-hole. Along the axis of the mounting through-hole, the flexible connection body (3) has a first end and a second end arranged oppositely. The first end is connected to the first pipeline (1) through the first mounting member (10), and the second end is connected to the second pipeline (2) through the second mounting member (20); A wear-resistant inner lining (4), which is a tubular structure with an internal through-hole. The wear-resistant inner lining (4) is installed in the mounting through-hole. Along the axis of the mounting through-hole, the wear-resistant inner lining (4) extends from the first end towards the second end, and the internal through-hole is configured to be able to communicate the first pipeline (1) and the second pipeline (2).

2. The flexible connector according to claim 1, wherein The thickness of the wear-resistant inner lining (4) is greater than or equal to 1 mm and less than or equal to 2 mm.

3. The flexible connector according to claim 1, characterized in that, The wear-resistant inner lining (4) is one of a stainless steel elbow, a stainless steel sleeve, and a stainless steel corrugated pipe.

4. The flexible connector according to any one of claims 1 to 3, characterized in that, The first mounting member (10) includes: A first flange, including a first sleeve (101) and a first annular plate (102) connected to the first sleeve (101). The first annular plate (102) is configured to be connected to a pipe flange (12), and the first end of the flexible connection body (3) is located on the outer periphery of the first sleeve (101); A first hoop (13) located on the outer periphery of the first end of the flexible connection body (3). The first hoop (13) is used to press the first end of the flexible connection body (3) against the first sleeve (101).

5. The flexible connector according to claim 4, characterized in that, The flexible connector further includes: A flange plate (5) connected to one end of the wear-resistant inner lining (4). The flange plate (5) is located between the pipe flange (12) and the first annular plate (102); A locking member (6) and an anti-disengagement member (7). The locking member (6) passes through the first annular plate (102), the flange plate (5), and the pipe flange (12) and then is connected to the anti-disengagement member (7).

6. The flexible connector according to claim 4, characterized in that, The flexible connector further includes a compression sleeve (8). The compression sleeve (8) is located between the first end of the flexible connection body (3) and the first sleeve (101), and one end of the wear-resistant inner lining (4) is pressed between the first sleeve (101) and the compression sleeve (8).

7. The flexible connector according to claim 4, wherein, The second mounting member (20) includes: A second flange, including a second sleeve (211) and a second annular plate (212) connected to the second sleeve (211). The second annular plate (212) is configured to be connected to the pipe flange (12), and the second end of the flexible connection body (3) is located on the outer periphery of the second sleeve (211); A second hoop (22) located on the outer periphery of the second end of the flexible connection body (3). The second hoop (22) is used to press the second end of the flexible connection body (3) against the second sleeve (211).

8. The flexible connector according to claim 4, wherein, The second mounting member (20) includes a second hoop (22) which is located on the outer periphery of the second end of the flexible connection body (3), and the second hoop (22) is used to press the second end of the flexible connection body (3) against the second pipeline (2).

9. The flexible connector according to any one of claims 1 to 3, characterized in that, Along the axis of the internal through hole, there is a gap between the end of the second pipeline (2) and the wear-resistant inner lining (4).

10. The flexible connector according to any one of claims 1 to 3, characterized in that The flexible connection body (3) includes an inner layer and an outer layer. The inner layer includes a stainless steel wire-reinforced fabric and a fluororubber-coated fabric, and the outer layer is made of a silicone rubber-coated fabric. Along the radial direction of the mounting through hole, from the inside to the outside, the stainless steel wire-reinforced fabric, the fluororubber-coated fabric, and the silicone rubber-coated fabric are arranged in sequence.

11. The flexible connector according to claim 10, wherein The flexible connection body (3) further includes a sandwich layer. At least one sandwich layer is provided between the inner layer and the outer layer, and the sandwich layer is made of a heat-insulating material or a corrosion-resistant material.

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