An anti-settling and anti-seismic corrugated compensator and its processing technology

Abstract

The present invention belongs to the technical field of pipeline compensators, and particularly relates to an anti-settling and anti-seismic corrugated compensator and a processing technology thereof; wherein the compensator comprises a middle pipe; a bellows, wherein two bellows are respectively arranged at the two ends of the middle pipe; an end pipe, wherein an end pipe is respectively arranged on the outside of each bellows; a ring plate, wherein a ring plate surrounding the outer wall of the end pipe is formed on each end pipe; a small tie rod, wherein a plurality of support ears evenly distributed along the circumference are arranged at a position of the middle pipe close to the ring plate, and a small tie rod is arranged between the support ears and the ring plate; a retaining frame, wherein a plurality of retaining frames abutting against the bellows are arranged on each small tie rod; the bellows compensator performs two-stage compensation through the bellows on both sides of the middle pipe, thereby improving the compensation effect of the bellows compensator.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline compensators, and in particular relates to an anti-settling and anti-vibration corrugated compensator and a processing technology thereof. Background Art

[0002] Bellows compensator, also known as expansion joint, or telescopic joint. It is composed of bellows (an elastic element) that constitutes its working body and accessories such as end pipes, brackets, flanges, and conduits. It is mainly used in various pipelines. It can compensate for the thermal displacement, mechanical deformation and absorb various mechanical vibrations of the pipeline, which plays a role in reducing the deformation stress of the pipeline and increasing the service life of the pipeline. The connection methods of bellows compensators are divided into flange connection and welding. Direct buried pipeline compensators generally adopt welding (except for trench installation). Bellows compensators are a kind of compensation device that uses the effective expansion and contraction of the elastic elements of bellows compensators to absorb the dimensional changes of pipelines, conduits or containers caused by thermal expansion and contraction. It belongs to a compensation element. It can absorb axial, lateral, and angular displacements. However, the traditional compensator is a single-section bellows with poor compensation effect, unsatisfactory anti-seismic effect, and settlement will occur after long-term use without good support. Summary of the invention

[0003] The purpose of the present invention is to provide a corrugated compensator and its processing technology with simple connection, anti-settlement and ideal anti-seismic effect in order to solve the above-mentioned technical problems.

[0004] In view of this, the present invention provides an anti-settlement and anti-seismic corrugated compensator, comprising:

[0005] The central part took over;

[0006] Bellows, two bellows are respectively arranged at the two ends of the middle pipe;

[0007] An end pipe is provided on the outside of each bellows;

[0008] A ring plate is formed on each end pipe and surrounds the outer wall of the end pipe;

[0009] A small tie rod is provided with a plurality of ears evenly distributed along the circumference at a position of the middle pipe close to the ring plate, and a small tie rod is provided between the ears and the ring plate;

[0010] A retainer is provided on each small pull rod with a plurality of retainers that abut against the bellows.

[0011] In the above technical solution, further, it also includes:

[0012] Large tie rods, a number of evenly distributed large tie rods are arranged between the two ring plates, and a fixing ear cooperating with the large tie rods is arranged in the middle of the middle pipe;

[0013] A guide tube is provided at both ends of the middle pipe and on the inner edge of the corrugated pipe on the corresponding side, and has a guide hole;

[0014] Rib plates: a plurality of rib plates evenly distributed along the circumference and fixedly connected to the end pipes are arranged on the ring plate.

[0015] In the above technical solution, further, the retaining frame includes:

[0016] External support rods, two external support rods are symmetrically arranged;

[0017] A middle receiving member is provided between the two outer support rods; and / or

[0018] A lower contact piece is arranged on a side of the middle receiving piece away from the outer support rod and abuts against the corrugated tube.

[0019] In the present technical solution, the compensator can obtain a greater working compensation capacity through the above process.

[0020] The beneficial effects of the present invention are:

[0021] 1. The bellows compensator performs two-stage compensation through the bellows on both sides of the middle pipe, thereby improving the compensation effect of the bellows compensator;

[0022] 2. The large tie rod and the lower tie rod provide good support for the bellows compensator as a whole and prevent it from settling;

[0023] 3. The setting of the retainer can improve the shock absorbing effect of the compensator on the bellows, thereby increasing the overall service life of the bellows compensator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 is a cross-sectional schematic diagram of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the outer support rods in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the outer clamp in the present invention;

[0028] Figure 5 It is a structural schematic diagram of the receiving rod in the present invention;

[0029] Figure 6 It is a structural schematic diagram of the inner support rod in the present invention;

[0030] Figure 7It is a schematic diagram of the structure of the first retainer in the present invention;

[0031] Figure 8 is a schematic structural diagram of a second type of retainer in the present invention;

[0032] Fig. 9 is a schematic structural diagram of a third type of retainer in the present invention;

[0033] Fig.10 is a schematic structural diagram of a fourth type of retainer in the present invention;

[0034] Fig.11 is a schematic structural diagram of a fifth retainer in the present invention;

[0035] Fig.12 is a schematic structural diagram of a sixth type of retainer in the present invention;

[0036] Fig.13 It is a structural schematic diagram of another middle receiving member in the present invention;

[0037] The markings in the figure are as follows: 1-middle pipe, 2-bellows, 3-end pipe, 4-ring plate, 5-small tie rod, 6-large tie rod, 7-fixing ear, 8-guide tube, 9-rib plate, 10-outer support rod, 101-outer rod body, 101a-outer cylinder body, 101b-end plate body, 101c-upper seat body, 101d-rolling body, 102-inner support rod, 102a-support rod body, 102b-inner support plate, 102c-support groove, 103-inner support cylinder, 103a-inner cylinder body, 103b-inner support ring, 101d-rolling body, 102-inner support rod, 102a-support rod body, 102b-inner support plate, 102c-support groove, 103-inner support cylinder, 103a-inner cylinder body, 103b-inner support ring, 103d ... 03c-middle support block, 103d-inner support spring, 103e-outer retaining spring, 11-middle receiving part, 11a-receiving plate, 11b-side support plate, 11c-end connecting plate, 11d-corrugated part, 12-lower contact part, 12a-outer clamp, 12b-support plate, 120-receiving rod, 121-outer receiving cylinder, 122-inner buffer rod, 122a-buffer cylinder body, 122b-sealing cover, 122c-buffer inner rod part, 122d-floating ring, 122e-inner floating spring, 123-inner receiving spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0039] Embodiment 1:

[0040] This embodiment provides an anti-settling and anti-seismic corrugated compensator, comprising:

[0041] Central takeover 1;

[0042] The two bellows 2 are respectively arranged at the two ends of the middle pipe 1;

[0043] An end pipe 3 is provided on the outer side of each bellows 2;

[0044] A ring plate 4 is formed on each end pipe 3 and surrounds the outer wall of the end pipe 3;

[0045] A small tie rod 5 is provided with a plurality of support ears evenly distributed along the circumference at a position of the middle pipe 1 close to the ring plate 4, and a small tie rod 5 is provided between the support ears and the ring plate 4;

[0046] Cages, each small tie rod 5 is provided with a plurality of cages that abut against the bellows 2;

[0047] The bellows 2 and the lugs can be fixedly connected to the middle pipe 1 by welding, the bellows 2 and the ring plate 4 can be fixedly connected to the end structure by welding, and both ends of the small pull rod 5 are threaded and fixedly connected to the ring plates 4 at both ends by bolts.

[0048] In the present technical solution, the corrugated compensator performs two-stage compensation through the bellows 2 on both sides of the middle pipe 1, thereby improving the compensation effect of the bellows compensator; and the end pipes 3 arranged on both sides of the middle pipe 1 can extend the overall pipe length and are used to place the ring plate 4; and the small pull rod 5 fixed on the ring plate 4 and the support ear can better connect the middle pipe 1 and the end pipe 3, and at the same time prevent the bellows 2 from axial deformation and dislocation, and prevent the compensator from local settlement and deformation; and the set retaining frame can provide good support for the bellows 2, thereby improving the overall shock absorption and compensation effect of the bellows 2.

[0049] Embodiment 2:

[0050] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] Also includes:

[0052] Large tie rods 6, a plurality of evenly distributed large tie rods 6 are arranged between the two ring plates 4, and a fixing ear 7 cooperating with the large tie rods 6 is arranged in the middle of the middle pipe 1;

[0053] A flow guide tube 8 is provided at both ends of the middle pipe 1 and on the inner edge of the corrugated tube 2 on the respective sides, and the flow guide tube 8 has a flow guide hole;

[0054] Rib plates 9, a plurality of rib plates 9 evenly distributed around the circumference and fixedly connected to the end pipe 3 are provided on the ring plate 4;

[0055] The two ends of the large pull rod 6 are both threaded and fixedly connected to the ring plate 4 through nuts, conical washers and spherical washers. The rib plate 9 can be fixedly connected to the ring plate 4 and the segment pipe by welding.

[0056] In this technical solution, the large tie rod 6 is inserted into the ring plate 4 on one side and then fixed, and then passes through the ring plate 4 on the other side and then fixed; the large tie rod 6 can establish a connection between the two end pipes 3 and is connected through the middle pipe 1, thereby better improving the stability of the compensator as a whole, and at the same time improving the anti-settling effect of the compensator as a whole; and the rib plate 9 can improve the pipe strength of the connection between the end pipe 3 and the rib plate 9, thereby improving the service life of the compensator as a whole. The setting of the guide tube 8 can play a certain role in guiding and stabilizing the flow of the fluid.

[0057] Embodiment 3:

[0058] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0059] The cage includes:

[0060] External support rods 10, two external support rods 10 are symmetrically arranged with each other;

[0061] A middle receiving member 11 is provided between the two outer support rods 10; and / or

[0062] A lower contact piece 12 is provided on the side of the middle receiving piece 11 away from the outer support rod 10 to abut against the bellows 2;

[0063] A first positioning cylinder is provided on the small tie rod 5 and between two outer support rods 10 located on the same retaining frame, and a second positioning cylinder is provided on the small tie rod 5 and between adjacent outer support rods 10 located in two adjacent retaining frames.

[0064] In the present technical solution, the first positioning cylinder and the second positioning cylinder are both made of metal, and have flexible contact sheets at both ends; the arrangement of the first positioning cylinder and the second positioning cylinder can ensure that the end of the outer support rod 10 does not undergo a large displacement, and can be better reset when slightly displaced, thereby achieving the effect of axially supporting the bellows 2. The outer support rod 10 as a whole can be extended and retracted to a certain extent, thereby better supporting the middle receiving member 11 and / or the lower contact member 12, and supporting by two outer support rods 10 can prevent the middle receiving member 11 and / or the lower contact member 12 from being offset. The lower contact member 12 can achieve the effect of better axial elastic support of the bellows 2. The middle receiving member 11 can better connect the middle receiving member 11 and the lower receiving member, and the middle receiving member 11 can be deformed axially and radially; thereby, the compensator can better achieve the effect of anti-seismic and compensating.

[0065] Embodiment 4:

[0066] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] The outer support rod 10 comprises:

[0068] An outer rod body 101, one end of which is rotatably connected to the small pull rod 5;

[0069] An inner support rod 102, the inner support rod 102 is coaxially disposed inside the outer rod body 101 and an end portion of the inner support rod 102 extends out of the outer rod body 101;

[0070] The inner support tube 103 is coaxially arranged in the outer rod body 101, and the inner support rod 102 is inserted from the middle of the inner support tube 103, and the inner support rod 102 is floatingly connected to the inner support tube 103;

[0071] The outer rod body 101 includes:

[0072] An outer cylinder 101a, one end of the outer cylinder 101a is closed and has an extension hole and the other end is open, and the end of the inner support rod 102 extends out through the extension hole;

[0073] An end connection block, which is arranged on the opening of the outer cylinder 101a, and the inner support cylinder 103 abuts against and is fixedly connected to the end connection block, and the end connection block is connected to the small pull rod 5;

[0074] The end connection block includes:

[0075] The end plate body 101b, the end connecting plate is threadedly connected to the opening of the outer cylinder body 101a, and a groove is formed on one side of the end connecting plate close to the outer cylinder body 101a, and one end of the inner support cylinder 103 abuts against the groove and is threadedly connected;

[0076] An upper seat body 101c is formed on a side of the end plate body 101b away from the outer cylinder body 101a, and a spherical groove is formed on the upper seat body 101c;

[0077] The rolling body 101d is provided in the spherical groove, and a spherical rolling body 101d is provided which can roll freely and extend out of the spherical groove. A connecting ear is formed at the end of the rolling body 101d, and the end connecting block is connected to the small pull rod 5 through the connecting ear. A positioning bolt which is threadedly connected and can resist the rolling body 101d is provided on the lower seat body.

[0078] In this technical solution, the outer rod body 101 is slidably connected with the small pull rod 5 through the end connection block, the inner support rod 102 is used to connect with the middle receiving member 11 or the lower receiving member, and the setting of the inner support tube 103 can play a good connection and shock absorption effect between the outer rod body 101 and the inner support rod 102; and the end connection block cooperates with the end plate body 101b through the rolling ball so that the inclination angle of the outer support rod 10 after installation can be adjusted, so that the lower contact member 12 can better corrugated pipe 2. The threaded end connection block can facilitate the installation of the inner support rod 102 and the inner support tube 103.

[0079] Embodiment 5:

[0080] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0081] The inner support rod 102 comprises:

[0082] The support rod 102a is located in the inner support tube 103 and has a fixing portion formed at the end of the support rod 102a extending out of the outer rod 101;

[0083] An inner support plate 102b is fixedly provided on one end of the support rod body 102a close to the inner support tube 103, and the inner support plate 102b has a plurality of support grooves 102c evenly distributed along the circumference;

[0084] The inner support plate 102 b is fixed on the support rod body 102 a by a nut, and the inner support plate 102 b is normally arranged to float in the middle of the inner support tube 103 .

[0085] In this technical solution, the fixed part on the support rod body 102a can be better connected with the middle receiving member 11 and / or the lower contact member 12; and the inner support plate 102b can be better supported in the inner support cylinder 103, thereby improving the overall support effect of the inner support rod 102. When the outer support rod 10 is directly connected to the lower contact member 12, the fixed part is rotatably connected to the lower contact block; and when the outer support rod 10 is first connected to the middle receiving member 11, the fixed part is fixedly connected to the middle receiving member 11.

[0086] Embodiment 6:

[0087] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0088] The inner support cylinder 103 comprises:

[0089] The inner cylinder 103a, both ends of which are respectively against the inner side of the outer rod 101;

[0090] An inner support ring 103b, the inner support ring 103b is coaxially arranged inside the outer rod body 101 and located in the middle outside the outer cylinder body 101a;

[0091] A middle support block 103c is provided on both sides of the inner support ring 103b, and is composed of a plurality of middle support blocks 103c which are symmetrically arranged and evenly distributed around the circumference and extend into the inner cylinder 103a. The middle support block 103c is rotatably connected to the inner support ring 103b; and the middle support block 103c is slidably matched with the support groove 102c; the middle support block 103c can make a rotational movement on the inner support ring 103b close to the middle of the inner cylinder 103a or away from the middle of the inner cylinder 103a;

[0092] Inner support spring 103d, an inner support spring 103d extending toward the middle of the two support assemblies is disposed in the inner support cylinder 103;

[0093] External retaining springs 103e, each support assembly outer sleeve on both sides of the inner support ring 103b is provided with an external retaining spring 103e;

[0094] A slot is formed on the inner cylinder 103a for the middle support block 103c to extend into, and the end of the inner support rod 102 is located in the middle of the two support components, and the two inner support springs 103d are respectively against the two sides of the end of the inner support rod 102; the side of the middle support block 103c facing the inner cylinder 103a is inclined from the middle of the inner support ring 103b to the outside and close to the middle of the inner cylinder 103a.

[0095] In the present technical scheme, the inner cylinder 103a is used to support and place the inner support spring 103d and the inner support rod 102; and the inner support ring 103b is arranged outside the inner cylinder 103a for connecting the middle support block 103c. Since the side wall of the middle support block 103c is arranged at an angle, the inner support disk 102b will squeeze the middle support blocks 103c on both sides when sliding up and down and press part of the middle support block 103c out of the inner cylinder 103a. Under the action of the outer retaining spring 103e, the middle support block 103c always plays a good elastic support role for the inner support disk 102b when it is located, so that the inner support rod 102 can float axially; and the support groove 102c can increase the maximum upward and downward displacement of the inner support disk 102b; and the two outer support rods 10 symmetrically arranged on the small pull rod 5 provide support, so that the lower contact piece 12 fixed thereon can float along the bellows 2 to a certain extent in the axial and radial direction. At the same time, the arrangement of the inner support spring 103d can further provide elastic support to the inner support plate 102b.

[0096] Embodiment 7:

[0097] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0098] The middle receiving member 11 comprises:

[0099] The receiving plate 11a is arc-shaped and arranged toward the corrugated tube 2;

[0100] Side support plates 11b, side support plates 11b extending outwardly and obliquely are respectively provided on both sides of the receiving plate 11a;

[0101] An end connecting plate 11c is provided at the end of the side supporting plate 11b, and the end connecting plate 11c is connected to the outer supporting rod 10;

[0102] Corrugated portion 11d, a plurality of evenly distributed and arc-shaped corrugated portions 11d are formed in the middle of the side support plate 11b;

[0103] The middle receiving part 11 is integrally formed by stamping of spring steel sheet.

[0104] In the present technical solution, the receiving plate 11a is used to fix the lower contact piece 12, and the setting of the side support plate 11b can provide good support for the receiving plate 11a, while the end connecting plate 11c can be easily fixedly connected to the fixing part; at the same time, since the middle receiving piece 11 is made of spring steel sheet, the middle receiving piece 11 can be axially compressed or radially compressed, thereby ensuring that the middle receiving piece 11 can play a good shock-absorbing and buffering effect.

[0105] Embodiment 8:

[0106] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0107] The lower contact 12 comprises:

[0108] An outer clamp 12a, one or more outer clamps 12a are arranged equidistantly, and the cross section of the outer clamp 12a is arc-shaped and abuts against the corrugated tube 2, and a support rod extends from the outer clamp 12a;

[0109] The support sheet 12b, the outer clamp 12a can be fixed on the support sheet 12b by a support rod; and / or

[0110] The receiving rod 120, when the support plate 12b is provided, is arranged between the support plate 12b and the middle receiving part 11 or between the support plate 12b and the outer supporting rod 10; when the support plate 12b is not provided, the receiving rod 120 is arranged between the outer clamp 12a and the middle receiving part 11 or between the outer clamp 12a and the outer supporting rod 10.

[0111] In the present technical solution, the outer clamp 12a is used to abut against the concave part of the bellows 2, so as to provide good support for the bellows 2 and prevent the bellows 2 from shifting when the bellows 2 expands and contracts; and the receiving rod 120 is used to provide good connection between the supporting sheet 12b and the middle receiving member 11 or the outer supporting rod 10, thereby ensuring the stability of the installation of the lower contact member 12. At the same time, in order to facilitate the installation of the lower contact member 12, a threaded connection block can be welded to the receiving plate 11a of the middle receiving member 11, and the lower contact member 12 is threadedly fixed to the middle receiving member 11 through the threaded connection block.

[0112] Embodiment 9:

[0113] This embodiment provides an anti-settlement and anti-seismic corrugated compensator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0114] The receiving rod 120 includes:

[0115] The outer receiving tube 121 is annular and has one end that is closed;

[0116] Internal receiving spring 123, an internal receiving spring 123 is arranged inside the external receiving tube 121;

[0117] An inner buffer rod 122 is provided on the outer receiving tube 121 shown, and the inner buffer rod 122 abuts against the inner receiving spring 123;

[0118] The inner buffer rod 122 includes:

[0119] The buffer cylinder 122a has one end opposite to the outer receiving cylinder 121 and is closed, while the other end is open; and a clamping edge is formed on one side of the buffer outer cylinder 101a located inside the outer receiving cylinder 121, and a limited end cap is threadedly connected to the outer receiving cylinder 121;

[0120] A sealing cover 122b is provided on the opening of the buffer cylinder 122a;

[0121] The buffer inner rod portion 122c, as shown, penetrates into the outer receiving tube 121 through the sealing cover 122b;

[0122] A floating ring 122d is provided at one end of the bottom of the buffer inner rod 122c near the outer receiving tube 121, and a plurality of floating holes are provided on the floating ring 122d;

[0123] An inner floating spring 122e is provided between the bottom of the outer receiving tube 121 and the floating ring 122d;

[0124] A penetrating injection hole is provided on the outer wall of the buffer cylinder 122a, and a sealing plug is provided on the injection hole.

[0125] In the present technical solution, one end of the outer receiving tube 121 is fixedly connected to the support sheet 12b, one end of the inner buffer rod 122 is connected to the fixed part or the receiving plate 11a, and the inner buffer rod 122 is inserted into the outer receiving tube 121; the cooperation of the outer receiving ring and the inner receiving spring 123 enables the receiving rod 120 to have a good telescopic shock-absorbing effect as a whole. The buffer is injected into the buffer cylinder 122a through the injection hole. The buffer can be hydraulic oil. When the buffer inner rod is displaced, the floating ring 122d at its end or the compression buffer can achieve the effect of buffering and shock-absorbing, and the inner rod can be reset to the left and right of the inner floating spring 122e; and the floating hole set on the floating ring 122d can allow the two buffers to flow when the displacement starts.

[0126] When the number of the retaining frame outer support rods 10 is two, the number of outer clamps 12a is multiple and fixed on the support sheet 12b; Figure 7 and 8 As shown in FIG. 1 , when the retainer has a middle receiving member 11, the receiving rod 120 can be disposed between the supporting sheet 12b and the middle receiving member 11; Fig. 9 When the middle receiving member 11 is not provided, the receiving rod 120 can be arranged between the supporting sheet 12b and the outer supporting rod 10, and an assembly block is arranged on one side of the receiving rod 120 away from the supporting sheet 12b, and connecting portions for connecting the outer supporting rod 10 are formed on both sides of the assembly block; Fig.10As shown, when the retaining frame does not have the middle receiving part 11 and the lower contact part 12 does not have the receiving rod 120, the two outer support rods 10 are fixedly connected to the two sides of the support sheet 12b.

[0127] like Fig.11 When the number of the outer support rod 10 of the retaining frame shown is one, and the number of the outer clamps 12a is multiple and fixed on the support plate 12b, the retaining frame does not have the middle receiving part 11, and the lower contact part 12 does not have the receiving rod 120. At this time, the outer support rod 10 is fixedly connected to the support plate 12b.

[0128] like Fig.12 As shown, when there is one outer support rod 10 and one outer clamp 12a, the retaining frame does not have the middle receiving part 11, and the lower contact part 12 does not have the receiving rod 120 and the supporting sheet 12b. At this time, the outer support rod 10 is fixedly connected to the outer clamp 12a.

[0129] When the number of the outer support rod 10 in the retaining frame is one, the outer support rods 10 in adjacent retaining frames are isolated by a shock-absorbing sleeve sleeved on the small pull rod 5, so as to achieve the effect of axial shock absorption.

[0130] Embodiment 10:

[0131] The present embodiment provides a processing technology applicable to the compensator in the above technical solution, in which the compensator is cold-tightened in the opposite direction of thermal expansion before installation; that is, in a cold state, the compensator is in a negative deformation state, and after the compensator is elongated by heat, the bellows 2 deforms laterally due to its flexibility, the compensator is in a working deformation state, and the thermal expansion of the pipeline is compensated.

[0132] In the present technical solution, the compensator can obtain a greater working compensation capacity through the above process.

[0133] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An anti-settlement and anti-seismic corrugated compensator, characterized in that: include: Central takeover (1); Bellows (2), wherein the two bellows (2) are respectively arranged at two ends of the middle connecting pipe (1); An end pipe (3), wherein an end pipe (3) is provided at the other end of each of the bellows (2); A ring plate (4), formed on each of the end pipes (3) and surrounding the outer wall of the end pipe (3); A small tie rod (5) is provided with a plurality of support ears evenly distributed along the circumference at a position of the middle pipe (1) close to the ring plate (4), and a small tie rod (5) is provided between the support ears and the ring plate (4); A retainer, wherein each of the small pull rods (5) is provided with a plurality of retainers that abut against the bellows (2); The retaining frame comprises: External support rods (10), wherein the two external support rods (10) are symmetrically arranged with respect to each other; A middle receiving member (11), wherein the middle receiving member (11) is arranged between the two outer support rods (10); A lower contact piece (12) is provided on a side of the middle receiving piece (11) away from the outer support rod (10) and is pressed against the corrugated tube (2); The outer support rod (10) comprises: An outer rod body (101), one end of the outer rod body (101) being rotatably connected to the small pull rod (5); An inner support rod (102), wherein the inner support rod (102) is coaxially arranged inside the outer rod body (101) and an end portion of the inner support rod (102) extends out of the outer rod body (101); An inner support tube (103), wherein the inner support tube (103) is coaxially arranged inside the outer rod body (101), and the inner support rod (102) is inserted from the middle of the inner support tube (103), and the inner support rod (102) is floatingly connected to the inner support tube (103); The outer rod body (101) comprises: An outer cylinder (101a), one end of the outer cylinder (101a) is closed and has an extension hole, and the other end is open, and the end of the inner support rod (102) extends out through the extension hole; The inner support rod (102) comprises: A support rod body (102a), wherein the support rod body (102a) is located inside the inner support tube (103) and an end portion thereof extends out of the outer rod body (101); An inner support plate (102b) is fixedly provided on one end of the support rod body (102a) close to the inner support tube (103), and the inner support plate (102b) is provided with a plurality of support grooves (102c) evenly distributed along the circumference; The inner support cylinder (103) comprises: An inner cylinder (103a), wherein two ends of the inner cylinder (103a) are respectively abutted against the inside of the outer rod (101); An inner support ring (103b), wherein the inner support ring (103b) is coaxially arranged in the middle of the outer cylinder (101a); A middle support block (103c), a support assembly consisting of a plurality of middle support blocks (103c) symmetrically arranged and evenly distributed around the circumference and extending into the inner cylinder (103a) is arranged on both sides of the inner support ring (103b); the middle support block (103c) is rotatably connected to the inner support ring (103b); and the middle support block (103c) is slidably matched with the support groove (102c); the middle support block (103c) can perform a rotational movement on the inner support ring (103b) toward the middle of the inner cylinder (103a) or away from the middle of the inner cylinder (103a); An inner support spring (103d), wherein the inner support cylinder (103) is provided with inner support springs (103d) extending toward the middle of the two support assemblies respectively; External retaining springs (103e), each supporting component outer shell on both sides of the inner supporting ring (103b) is provided with an external retaining spring (103e); A slot is formed on the inner cylinder (103a) for the middle support block (103c) to extend into.

2. The anti-settlement and anti-seismic corrugated compensator according to claim 1, characterized in that: Also includes: Large tie rods (6), a plurality of evenly distributed large tie rods (6) are arranged between the two ring plates (4); Rib plates (9), a plurality of rib plates (9) evenly distributed along the circumference and fixedly connected to the end pipe (3) are provided on the ring plate (4).

3. The anti-settlement and anti-seismic corrugated compensator according to claim 1, characterized in that: The middle receiving member (11) comprises: A receiving plate (11a), the receiving plate (11a) being arc-shaped and arranged in the direction of the corrugated tube (2); Side support plates (11b), side support plates (11b) extending outwardly and obliquely are respectively arranged on both sides of the receiving plate (11a); An end connecting plate (11c) is provided at the end of the side supporting plate (11b), and the end connecting plate (11c) is connected to the outer supporting rod (10).

4. The anti-settlement and anti-seismic corrugated compensator according to claim 1, characterized in that: The lower contact piece (12) comprises: An outer clamp (12a), wherein the cross section of the outer clamp (12a) is arc-shaped and abuts against the corrugated tube (2); A receiving rod (120), wherein the receiving rod (120) is arranged between the outer clamp (12a) and the middle receiving piece (11) or between the outer clamp (12a) and the outer support rod (10).

5. The anti-settlement and anti-seismic corrugated compensator according to claim 4, characterized in that: The receiving rod (120) comprises: An outer receiving tube (121), wherein the outer receiving tube (121) is annular and has one end that is closed; An inner receiving spring (123), wherein the inner receiving spring (123) is arranged in the outer receiving tube (121); An inner buffer rod (122) is provided on the outer receiving tube (121) and abuts against the inner receiving spring (123).

6. A processing technology applicable to an anti-settling and anti-vibration corrugated compensator according to claim 1 or 2, characterized in that: Before installation, the compensator is cold-tightened in the opposite direction of thermal expansion; that is, in the cold state, the compensator is in a negative deformation state, and after the compensator is elongated by heat, the bellows deforms laterally due to its flexibility, the compensator is in a working deformation state, and the thermal expansion of the pipeline is compensated.

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