CN211398924U - High-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifices - Google Patents
High-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifices Download PDFInfo
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- CN211398924U CN211398924U CN201922011214.XU CN201922011214U CN211398924U CN 211398924 U CN211398924 U CN 211398924U CN 201922011214 U CN201922011214 U CN 201922011214U CN 211398924 U CN211398924 U CN 211398924U
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Abstract
The utility model discloses a high flexibility anti-destabilization pressure-stabilizing balanced expansion joint for sensitive equipment pipe orifice connection, which can absorb the internal pressure thrust generated by the expansion joint, the bearing part of which adopts a hinge structure can improve the stability of the expansion joint and reduce the vibration of the expansion joint, and simultaneously, a hinge plate guide plate and an internal guide tube further improve the anti-destabilization capability of the expansion joint; pressure guide pipes are additionally arranged on two sides of the three-way pipeline, pressure is guided to a balance end at a constant speed, so that the expansion joint achieves self balance, and the balance end is prevented from being impacted directly by a high-flow-rate medium, and is prevented from being excessively vibrated or directly damaged; the tee joint adopts a 30-degree tee joint structure, so that system vibration and noise generated when high-flow-rate media pass through the tee joint are reduced; the main hinge plate is directly welded with the sealing plate, so that the installation size of the expansion joint is reduced, and the structure of the expansion joint is more compact; the outside of the straight side section of the corrugated pipe is welded with a reinforcing lantern ring, so that the influence of vibration on the circumferential weld of the straight side section of the corrugated pipe is reduced.
Description
Technical Field
The utility model relates to an expansion joint technical field specifically is a sensitive equipment mouth of pipe is connected and is prevented losing balanced type expansion joint of steady voltage with high flexibility.
Background
The expansion joint is used as an elastic compensation element capable of freely stretching, has the main function of absorbing the thermal displacement, the vibration displacement and the installation deviation of a pipeline, and has the advantages of reliable work, good performance, compact structure and the like. The expansion joint for the anti-surge and air-release system of the gas turbine is relatively harsh in design condition, and is mainly limited by two aspects, namely, the expansion joint is in a high-temperature, high-pressure and high-medium flow velocity environment on one hand, the allowable load of a pipe orifice limits the product and the overall flexibility of the product is very high on the other hand, the wall thickness of the corrugated pipe is required to reach a certain value at high temperature and high pressure to meet the strength requirement, the wall of the corrugated pipe is required to adopt a thin-wall multilayer multi-corrugation structure at high flexibility, but the stability of the thin-wall multilayer multi-corrugation structure is relatively poor, and the requirements of flexibility and stability are simultaneously met; the pressure of the working end inner cavity on the left side of the curved pipe pressure balance type expansion joint and the pressure of the balance end inner cavity on the right side of the curved pipe pressure balance type expansion joint need to be kept consistent, so 1-2 holes are generally formed in the tee joint, two ends can be communicated, and the pressure is kept consistent, but because the flow velocity of a medium in a pipeline is too high, the high-flow velocity medium can generate great impact on the tee joint, so that the holes on the tee joint are damaged, the high-flow velocity medium directly impacts the balance end of the expansion joint, and the balance end is excessively vibrated or directly damaged; in the traditional curved pipe pressure balance type expansion joint, a tee joint generally adopts a 90-degree structure, and when the medium flow velocity in a pipeline is very high, because the medium flow direction is suddenly changed by 90 degrees, the phenomena of very large flow resistance and medium turbulence can be generated, thereby bringing very large system vibration and noise.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sensitive equipment mouth of pipe is connected and is prevented losing balanced type expansion joint of steady pressure with high flexibility to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-flexibility pressure loss prevention and stabilization balance type expansion joint for connecting a sensitive equipment pipe orifice comprises a working end assembly A, a three-way assembly and a balance end assembly B, wherein one end of the working end assembly A is connected with one end of the three-way assembly, and the other end of the three-way assembly is connected with one end of the balance end assembly B. The three-way assembly comprises a bent pipe B and a bent pipe C which are communicated with the working end assembly A and the balance end assembly B, and the end parts of the bent pipe B and the bent pipe C are obliquely communicated with the bent pipe A.
Preferably, the angle between the elbow A and the elbows B and C is degree.
Preferably, the working end assembly comprises an end pipe A, a corrugated pipe A, a working end middle pipe and a corrugated pipe B which are welded in sequence, and a supporting plate is welded on the outer wall of the end pipe A.
Preferably, balanced end subassembly includes balanced end intervalve, bellows C and bellows D have been welded respectively to balanced end intervalve both sides, bellows C welds with the tee bend subassembly mutually, the welding of bellows D outside has end pipe B, end pipe B's other end welding has the shrouding, the intraductal clearance fit of balanced end intervalve has interior stand pipe, the both ends of interior stand pipe run through in bellows C and the bellows D and extend to tee bend and end pipe B to with tee bend welded fastening.
Preferably, the hinge plate assembly further comprises a main hinge plate A welded with the support plate and a main hinge plate B welded with the closing plate, and the main hinge plate A is connected with the main hinge plate B through an auxiliary hinge plate.
Preferably, hinge plate guide plates are welded on the outer walls of the working end middle pipe, the tee joint component and the balance end middle pipe, and the main hinge plate A, the main hinge plate B and the auxiliary hinge plate penetrate through the hinge plate guide plates and are in clearance fit with the hinge plate guide plates.
Preferably, the auxiliary hinge plate is respectively connected with the main hinge plate A and the main hinge plate B through pin shafts.
Preferably, the guide pipes are in clearance fit in the corrugated pipes A and B.
Preferably, the length of the flow guide pipe is greater than that of the corrugated pipe A or the corrugated pipe B.
Preferably, the main hinge plate B is directly welded to the closing plate.
Preferably, the outer walls of the elbow pipe B and the elbow pipe C are both welded with pressure guide pipes, one end of each pressure guide pipe is welded with the elbow pipe B, the other end of each pressure guide pipe is welded with the elbow pipe C, and the inner cavities of the elbow pipe B and the elbow pipe C are communicated through the pressure guide pipes.
Preferably, the outer sides of straight side sections of the corrugated pipe A, the corrugated pipe B, the corrugated pipe C and the corrugated pipe D are all welded with reinforcing lantern rings.
Compared with the prior art, the beneficial effects of the utility model are that: the high-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting the pipe orifice of the sensitive equipment can absorb the internal pressure thrust generated by the expansion joint; the force bearing part of the expansion joint adopts a hinge structure, so that the stability of the expansion joint can be improved, and the vibration of the expansion joint can be reduced; the corrugated pipe adopts a thin-wall multilayer structure, so that the flexibility of the expansion joint is improved; the hinge plate guide plate and the inner guide plate are additionally provided with expansion joint instability resistance; pressure guide pipes are additionally arranged on two sides of the three-way pipeline, pressure is guided to a balance end at a constant speed, so that the expansion joint achieves a self-balancing effect, the medium flowing at a high speed is prevented from directly impacting the balance end to cause excessive vibration or direct damage of the balance end, and the safety use performance of the expansion joint is improved; the tee joint adopts a 30-degree tee joint structure, so that system vibration and noise caused by flow resistance and medium turbulence generated when high-flow-speed media pass through the tee joint are reduced; the main hinge plate is directly welded with the sealing plate, so that the installation size of the expansion joint is reduced, and the structure of the expansion joint is more compact; the outside of the straight side section of the corrugated pipe is welded with a reinforcing lantern ring, so that the influence of vibration on the circumferential weld of the straight side section of the corrugated pipe is reduced.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a top view of fig. 1 of the present invention;
fig. 3 is a schematic structural view of the tee assembly of the present invention.
In the figure: 1. the device comprises end pipes A, 2, a support plate, 3, corrugated pipes A, 4, hinge plate guide plates, 5, working end intermediate pipes, 6, a flow guide pipe, 7, a three-way assembly, 71, bent pipes A, 72, bent pipes B, 73, bent pipes C, 8, inner guide pipes, 9, balance end intermediate pipes, 10, end pipes B, 11, sealing plates, 12, main hinge plates A, 13, auxiliary hinge plates, 14, pin shafts, 15, main hinge plates B, 16, pressure guide pipes, 17, corrugated pipes B, 18, corrugated pipes C, 19, corrugated pipes D, 20 and reinforcing lantern rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a high-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifices comprises a working end component A, a three-way component 7 and a balanced end component B, wherein one end of the working end component A is connected with one end of the three-way component, the other end of the three-way component is connected with one end of the balanced end component B, the working end component A, the three-way component 7 and the balanced end component B are assembled and welded into an expansion joint main body, the length of the whole expansion joint is fixed by arranging two rigid body structures on the side surface, when the expansion joint works, the working end component of the expansion joint generates corresponding thermal displacement due to the thermal expansion of the pipeline, the corrugated pipe generates internal pressure thrust due to the internal pressure, meanwhile, the expansion joint balance end component keeps the length of the expansion joint in the axial direction unchanged through the generated deformation opposite to the axial direction of the working end, so that the whole expansion joint is in a stable state with balanced stress.
The working end assembly comprises an end pipe 1, a corrugated pipe A3, a working end middle pipe 5 and a corrugated pipe B17 which are welded in sequence, and a supporting plate 2 is welded on the outer wall of the end pipe 1.
The three-way component 7 comprises an elbow B72 and an elbow C73 which are communicated with a working end component A and a balance end component B, the ends of the elbow B72 and the elbow C73 are obliquely communicated with an elbow A71, the inner included angle degree of the elbow A71, the elbow B72 and the elbow C73 is 30 degrees, system vibration and noise caused by flow resistance and medium turbulence generated when a high-flow-rate medium passes through a three-way are reduced, the straight pipe B72 is communicated with the straight pipe C73 through a pressure guide pipe 16, the pressure of a working end inner cavity on the left side of an expansion joint and the pressure of a balance end inner cavity on the right side of the expansion joint are required to be kept consistent, 1-2 holes are usually formed in the three-way, the two ends can be communicated, the pressure is kept consistent, but because the medium flow rate in a pipeline of a gas turbine anti-surge and air-release system is overhigh, the high-flow-rate medium can greatly impact the, cause the excessive vibration of balanced end or directly damage, for avoiding this kind of condition, tee bend both sides have now increased connecting pipe 16, make work end inner chamber and balanced end inner chamber intercommunication through the connecting pipe 16 of side direction, reach both ends pressure balance's effect, guarantee the normal use of expansion joint.
The balance end assembly comprises a balance end middle pipe 9, corrugated pipes C18 and a corrugated pipe D19 are welded on two sides of the balance end middle pipe 9 respectively, a corrugated pipe C18 is welded with the three-way component 7, an end pipe 10 is welded on the outer side of the corrugated pipe D19, a sealing plate 11 is welded on the other end of the end pipe 10, an inner guide pipe 8 is in clearance fit in the balance end middle pipe 9, two ends of the inner guide pipe 8 penetrate through the corrugated pipes C18 and the corrugated pipes D19 and extend into the three-way component 7 and the end pipe 10 and are welded and fixed with the three-way component 7, the inner guide pipe 8 has a guide effect on the balance end portion of the expansion joint, under the combined action of the hinge plate and the hinge plate guide plate, the radial movement space of the balance end middle pipe is reduced, and.
The expansion joint further comprises a hinge plate assembly, the hinge plate assembly comprises a main hinge plate A12 welded with the support plate 2 and a main hinge plate B15 welded with the closing plate 11, the main hinge plate A12 is connected with the main hinge plate B15 through an auxiliary hinge plate 13, the auxiliary hinge plate 13 is respectively connected with the main hinge plate A12 and the main hinge plate B15 through a pin 14, and the hinge plate assembly can improve the stability of the expansion joint during working and reduce the vibration of the expansion joint.
The hinge plate guide plates 4 are welded on two side walls of the working end middle pipe 5, the tee joint component 7 and the balance end middle pipe 9, the main hinge plate A12, the main hinge plate B15 and the auxiliary hinge plate 13 penetrate through the hinge plate guide plates 4 and are in clearance fit with the hinge plate guide plates, and under the combined action of the main hinge plate A12, the main hinge plate B15, the auxiliary hinge plate 13 and the guide plates 4, the radial movement space of the working end middle pipe 5 and the balance end middle pipe 9 is reduced, and the instability resistance of the expansion joint is improved.
The honeycomb duct 6 is in clearance fit in the corrugated pipe A3 and the corrugated pipe B17, the length of the honeycomb duct 6 is larger than that of the corrugated pipe A3 or the corrugated pipe B17, a certain clearance is reserved between the outer wall of the honeycomb duct 6 and the inner wall of the expansion joint pipe body, and the honeycomb duct 6 can play a role in guiding flow and reduce the impact of high-flow-rate media on the corrugated pipe.
The reinforcing lantern rings 20 are welded on the outer sides of straight side sections of the corrugated pipes A3, B17, C18 and D19, and the reinforcing lantern rings 20 can reduce the influence of vibration on the circumferential weld of the corrugated pipes, so that the service life of the expansion joint is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a sensitive equipment mouth of pipe is connected with balanced type expansion joint of high flexibility pressure loss prevention steady voltage which characterized in that: the device comprises a working end assembly A, a three-way assembly (7) and a balance end assembly B, wherein one end of the working end assembly A is connected with one end of the three-way assembly, the other end of the three-way assembly is connected with one end of the balance end assembly B, the three-way assembly (7) comprises a bent pipe B (72) and a bent pipe C (73) which are communicated with the working end assembly A and the balance end assembly B, and the ends of the bent pipe B (72) and the bent pipe C (73) are obliquely communicated with a bent pipe A (71);
the centers of the bent pipe B (72) and the bent pipe C (73) are on the same axis, the degree of an included angle between the bent pipe A (71) and the bent pipe B (72) and the included angle between the bent pipe C (73) are 30 degrees, pressure guide pipes (16) are welded on the outer walls of the bent pipe B (72) and the bent pipe C (73), one end of each pressure guide pipe (16) is welded with the bent pipe B (72), the other end of each pressure guide pipe is welded with the bent pipe C (73), and the inner cavities of the bent pipe B (72) and the bent pipe C (73) are communicated through the pressure guide pipes (16);
the hinge plate assembly comprises a main hinge plate A (12) welded with the support plate (2) and a main hinge plate B (15) welded with the seal plate (11), the main hinge plate A (12) is connected with the main hinge plate B (15) through an auxiliary hinge plate (13), and the auxiliary hinge plate (13) is respectively connected with the main hinge plate A (12) and the main hinge plate B (15) through a pin shaft (14).
2. The high-flexibility pressure loss prevention and stabilization balanced expansion joint for the connection of the sensitive equipment pipe orifice as claimed in claim 1, wherein the pressure loss prevention and stabilization balanced expansion joint comprises: the working end assembly comprises an end pipe A (1), a corrugated pipe A (3), a working end intermediate pipe (5) and a corrugated pipe B (17) which are welded in sequence, a supporting plate (2) is welded on the outer wall of the end pipe A (1), the balancing end assembly comprises a balancing end intermediate pipe (9), the corrugated pipe C (18) and the corrugated pipe D (19) are welded on two sides of the balancing end intermediate pipe (9) respectively, the corrugated pipe C (18) is welded with a three-way assembly (7), the end pipe B (10) is welded on the outer side of the corrugated pipe D (19), a sealing plate (11) is welded on the other end of the end pipe B (10), an inner guide pipe (8) is in clearance fit with the balancing end intermediate pipe (9), two ends of the inner guide pipe (8) penetrate through the corrugated pipe C (18) and the corrugated pipe D (19) and extend into the three-way assembly (7) and the end pipe B (10, and is welded and fixed with the three-way component (7).
3. The high-flexibility pressure loss prevention and stabilization balanced expansion joint for the connection of the sensitive equipment pipe orifice as claimed in claim 2, wherein the pressure loss prevention and stabilization balanced expansion joint comprises: hinge plate guide plates (4) are welded to the outer walls of the working end middle pipe (5), the tee joint component (7) and the balance end middle pipe (9), and the main hinge plate A (12), the main hinge plate B (15) and the auxiliary hinge plate (13) penetrate through the hinge plate guide plates (4) and are in clearance fit with the hinge plate guide plates.
4. The high-flexibility pressure loss prevention and stabilization balanced expansion joint for the connection of the sensitive equipment pipe orifice as claimed in claim 2, wherein the pressure loss prevention and stabilization balanced expansion joint comprises: and the corrugated pipes A (3) and B (17) are internally provided with guide pipes (6) in clearance fit.
5. The high-flexibility pressure loss prevention and stabilization balanced expansion joint for the connection of the sensitive equipment pipe orifice as claimed in claim 4, wherein the pressure loss prevention and stabilization balanced expansion joint comprises: the length of the flow guide pipe (6) is larger than that of the corrugated pipe A (3) or the corrugated pipe B (17).
6. The high-flexibility pressure loss prevention and stabilization balanced expansion joint for the connection of the sensitive equipment pipe orifice as claimed in claim 1, wherein the pressure loss prevention and stabilization balanced expansion joint comprises: the main hinge plate B (15) is directly welded with the closing plate (11).
7. The high-flexibility pressure loss prevention and stabilization balanced expansion joint for the connection of the sensitive equipment pipe orifice as claimed in claim 4, wherein the pressure loss prevention and stabilization balanced expansion joint comprises: and reinforcing lantern rings (20) are welded on the outer sides of straight side sections of the corrugated pipe A (3), the corrugated pipe B (17), the corrugated pipe C (18) and the corrugated pipe D (19).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922011214.XU CN211398924U (en) | 2019-11-20 | 2019-11-20 | High-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922011214.XU CN211398924U (en) | 2019-11-20 | 2019-11-20 | High-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifices |
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| CN211398924U true CN211398924U (en) | 2020-09-01 |
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| CN201922011214.XU Active CN211398924U (en) | 2019-11-20 | 2019-11-20 | High-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifices |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762310A (en) * | 2019-11-20 | 2020-02-07 | 沈阳晨光弗泰波纹管有限公司 | High-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifice |
| CN117091019A (en) * | 2023-10-18 | 2023-11-21 | 沈阳晨光弗泰波纹管有限公司 | Expansion absorption device and gas turbine exhaust system |
-
2019
- 2019-11-20 CN CN201922011214.XU patent/CN211398924U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762310A (en) * | 2019-11-20 | 2020-02-07 | 沈阳晨光弗泰波纹管有限公司 | High-flexibility anti-loss pressure-stabilizing balanced expansion joint for connecting sensitive equipment pipe orifice |
| CN117091019A (en) * | 2023-10-18 | 2023-11-21 | 沈阳晨光弗泰波纹管有限公司 | Expansion absorption device and gas turbine exhaust system |
| CN117091019B (en) * | 2023-10-18 | 2024-02-23 | 沈阳晨光弗泰波纹管有限公司 | Expansion absorption device and gas turbine exhaust system |
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