CN211010362U - High-pressure pipeline compensator - Google Patents
High-pressure pipeline compensator Download PDFInfo
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- CN211010362U CN211010362U CN201920751114.8U CN201920751114U CN211010362U CN 211010362 U CN211010362 U CN 211010362U CN 201920751114 U CN201920751114 U CN 201920751114U CN 211010362 U CN211010362 U CN 211010362U
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- outer sleeve
- sealing
- inner pipe
- pipeline
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Abstract
The utility model relates to a high-pressure pipeline compensator, which comprises an inner pipe, an outer sleeve and at least one sealing element, wherein one end of the outer sleeve is sleeved outside one end of the inner pipe, and the other end of the outer sleeve is connected with a high-pressure pipeline; the other end of the inner pipe is connected with a high-pressure pipeline, the sealing element is positioned at the joint of the outer sleeve and the inner pipe and clamped between the outer sleeve and the inner pipe, the inner pipe is communicated with the outer sleeve, the inner wall of the outer sleeve is provided with at least one sealing groove for accommodating the sealing element, or the outer wall of the inner pipe is provided with at least one sealing groove for accommodating the sealing element, the sealing element and the sealing groove are arranged in a one-to-one correspondence mode, and a guide ring for preventing deflection is further arranged at the. The high-pressure pipeline compensator is arranged between the outlet end of the high-pressure delivery pump and the pipeline, can effectively reduce and eliminate the influence of mechanical vibration and liquid flow pulsation generated by the delivery pump on the pipeline, can effectively compensate expansion and contraction of the pipeline caused by seasonal changes, and improves the stability and reliability of the pipeline delivery system.
Description
Technical Field
The utility model relates to a high concentration slurry high pressure pipeline carries technical field, specifically is a high pressure pipeline compensator.
Background
For example, in the fields of mines, alumina, chemical industry and the like, a displacement type high-pressure pump is generally adopted when high-pressure long-distance conveying is carried out on high-concentration solid-liquid two-phase or multi-phase flow media generated in the process. Mechanical vibration and flow pulsation generated by the volumetric high-pressure pump due to its inherent structural characteristics are transmitted to a pressure pipe directly connected to an outlet of the pump, thereby causing vibration of the pipe. The vibration of the pipeline not only affects the fixation of the pipeline, but also causes the risk of connection loss of the connecting part of the pipeline. If the high-pressure pipeline compensator is additionally arranged at the connecting part of the pump and the high-pressure pipeline, the rigid connection between the pump and the high-pressure pipeline is changed into flexible connection, the influence of the mechanical vibration and the liquid flow pulsation on the pipeline can be effectively relieved and eliminated, and the stability and the reliability of the pipeline conveying system are improved.
For the high-pressure transportation occasion of the pipeline, a convex-concave high-pressure flange is generally adopted to connect the pipeline. Once the pipeline is blocked and the pipeline needs to be disassembled for cleaning due to the influence of various factors in the conveying process, the connecting structure of the convex-concave surface high-pressure flange can cause difficulty in disassembling the pipeline. The high-pressure pipeline compensator is additionally arranged in the pipeline system, so that convenience is brought to the disassembly of the pipeline because the pipeline system has a telescopic function.
The pipeline can expand with heat and contract with cold due to the difference of cold and hot temperatures caused by seasonal standardization. The high-pressure pipeline compensator is additionally arranged in the pipeline system, so that expansion with heat and contraction with cold caused by temperature difference change can be effectively compensated, and the pipeline is fixed reliably.
The pipeline compensator in the prior art can not bear high pressure because the ordinary O-shaped sealing ring is adopted for sealing; or short life and poor reliability due to improper design of the sealing structure and improper selection of the sealing element; or the deflection between the inner pipe and the outer sleeve causes blockage due to no guide element, so that effective telescopic compensation cannot be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high-pressure pipeline compensator is provided, realize the high pressure remote transport of high concentration solid-liquid double-phase or heterogeneous flow medium.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a high-pressure pipeline compensator comprises an inner pipe, an outer sleeve and at least one sealing element, wherein one end of the outer sleeve is sleeved outside one end of the inner pipe, and the other end of the outer sleeve is connected with a high-pressure pipeline; the other end of the inner pipe is connected with a high-pressure pipeline, the sealing element is positioned at the joint of the outer sleeve and the inner pipe and clamped between the outer sleeve and the inner pipe, and the inner pipe is communicated with the outer sleeve; the inner wall of the outer sleeve is provided with at least one sealing groove for accommodating the sealing element, or the outer wall of the inner pipe is provided with at least one sealing groove for accommodating the sealing element; the sealing elements and the sealing grooves are arranged in a one-to-one correspondence mode.
The utility model has the advantages that: the inner pipe and the outer sleeve are combined by adopting a socket structure with a certain gap, a sealing element is arranged in a sealing groove arranged on the outer surface of the inner pipe or the inner surface of the outer sleeve at the joint part of the inner pipe and the outer sleeve, and the sealing element is contacted with the inner wall of the outer sleeve or the outer surface of the inner pipe to realize pressure sealing and prevent high-concentration solid-liquid two-phase or multi-phase flow medium conveyed in the pipeline from overflowing. The inner pipe and the outer sleeve of the pipeline compensator can move relatively, the inner pipe and the outer sleeve move oppositely or move back to back, namely the length of the pipeline compensator can be changed, the pipeline compensator has a telescopic function, and the pipeline compensator is arranged between pipelines and can bring convenience for the disassembly of the pipeline. The high-pressure pipeline compensator is arranged between the outlet end of the high-pressure delivery pump and the pipeline, can effectively reduce and eliminate the influence of mechanical vibration and liquid flow pulsation generated by the delivery pump on the pipeline, and can effectively compensate the pipeline expansion and contraction caused by seasonal changes by using the telescopic function of the pipeline compensator, so that the stability and the reliability of the pipeline delivery system are improved.
Specifically, the gap between the inner pipe and the outer sleeve can be determined according to the pressure grade of the pipeline, and the higher the pressure is, the smaller the gap is.
Specifically, the inner tube and the outer sleeve are cylindrical structures and can bear high pressure.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the inner wall of the outer sleeve is provided with at least one guide groove for accommodating the guide ring, or the outer wall of the inner pipe is provided with at least one guide groove for accommodating the guide ring, and the guide ring and the guide groove are arranged in one-to-one correspondence.
The beneficial effect of adopting the further scheme is that: the clamping resistance caused by the deflection between the inner pipe and the outer sleeve is avoided, and effective telescopic compensation is realized.
Furthermore, the number of the guide rings is one, the number of the sealing elements is two, two sealing grooves for accommodating the sealing elements are formed in the inner wall of the outer sleeve, and the sealing elements and the sealing grooves are arranged in a one-to-one correspondence manner; the inner wall of the outer sleeve is provided with a guide groove for accommodating the guide ring.
Furthermore, the number of the guide rings is one, the number of the sealing elements is two, the outer wall of the inner pipe is provided with two sealing grooves for accommodating the sealing elements, and the sealing elements and the sealing grooves are arranged in a one-to-one correspondence manner; the outer wall of the inner tube has a guide groove for receiving the guide ring.
Furthermore, the number of the guide rings is one, the number of the sealing elements is two, the inner wall of the outer sleeve is provided with two sealing grooves for accommodating the sealing elements, the sealing elements and the sealing grooves are arranged in a one-to-one correspondence manner, and the outer wall of the inner pipe is provided with a guide groove for accommodating the guide rings; or the outer wall of the inner pipe is provided with two sealing grooves for containing the sealing elements, the sealing elements and the sealing grooves are arranged in a one-to-one correspondence mode, and the inner wall of the outer sleeve is provided with a guide groove for containing the guide ring.
Further, the outer sleeve is connected with the high-pressure pipeline through an outer sleeve flange; the inner pipe is connected with the high-pressure pipeline through an inner pipe flange.
The beneficial effect of adopting the further scheme is that: the inner pipe and the outer sleeve are connected with two sections of high-pressure conveying pipelines through flange structures respectively, and the connection is stable and the sealing effect is good.
Specifically, the rotation between the inner pipe and the outer sleeve does not influence the sealing and guiding effects, and the connection with the pipeline flange can be implemented more conveniently.
Further, the outer wall of the inner pipe is provided with an outer sleeve limiting part extending outwards along the radial direction.
The beneficial effect of adopting the further scheme is that: the moving distance of the outer sleeve relative to the inner pipe is limited, so that the high-pressure pipeline connected with the two ends of the high-pressure pipeline compensator can freely stretch out and draw back within an allowable stretching range, the high-pressure conveying pipeline is prevented from being broken due to large tensile stress, and the use safety of the pipeline is ensured.
Further, the inner wall of the outer sleeve is provided with an inner pipe limiting part extending inwards in the radial direction.
The beneficial effect of adopting the further scheme is that: the moving distance of the outer sleeve relative to the inner pipe is limited, and the high-pressure conveying pipeline is prevented from being broken due to large tensile stress.
Further, the sealing member is a combined sealing ring.
The beneficial effect of adopting the further scheme is that: the combined sealing ring has the advantages of simple structure, high sealing efficiency, capability of bearing higher pressure and low price.
Furthermore, the combined sealing ring is an O-shaped sealing ring and a rectangular sealing ring which are mutually sleeved.
The beneficial effect of adopting the further scheme is that: the O-shaped sealing ring and the rectangular sealing ring which are mutually sleeved have high pressure bearing capacity and good sealing effect.
Specifically, when the combined sealing ring and the guide ring are installed, the friction resistance of the combined sealing ring and the guide ring between the inner pipe and the outer sleeve can be effectively reduced by coating lubricating grease.
Specifically, the combined sealing ring is a coaxial sealing element which conforms to the GB/T15242.1-2017 standard. When the combined sealing ring is a combined coaxial sealing element for the shaft, the O-shaped sealing ring is sleeved on the outer side of the rectangular sealing ring. When the combined sealing ring is a combined coaxial sealing element for a hole, the rectangular sealing ring is sleeved on the outer side of the O-shaped sealing ring.
The utility model discloses a high-pressure pipeline compensator sets up between high-pressure delivery pump exit end and pipeline, can effectually reduce and eliminate the produced mechanical vibration of delivery pump and the influence that the liquid stream pulsation caused the pipeline, improves pipe-line conveying system's stability and reliability. The inner pipe and the outer sleeve of the pipeline compensator can move relatively, the inner pipe and the outer sleeve move oppositely or move back to back, namely the length of the pipeline compensator can be changed, the pipeline compensator has a telescopic function, and the pipeline compensator is arranged between pipelines and can bring convenience for the disassembly of the pipeline. Meanwhile, by utilizing the telescopic function of the pipeline compensator, the pipeline expansion and contraction caused by seasonal changes can be effectively compensated, and the stability and the reliability of the pipeline conveying system are improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a high-pressure pipeline compensator according to the present invention;
fig. 2 is a schematic structural diagram of a first embodiment of the high-pressure pipeline compensator of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the outer sleeve comprises an outer sleeve body 101, outer sleeve flanges 102, an inner pipe limiting portion 2, a sealing piece 3, a guide ring 4, an inner pipe 401, inner pipe flanges 402 and an outer sleeve limiting portion.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example one
The high-pressure pipeline compensator shown in figure 1 comprises an inner pipe 4, an outer sleeve 1, a combined sealing ring and a guide ring 3. Wherein, the outer circumferential surface of the inner tube 4 is provided with two parallel annular sealing grooves, and the two combined sealing rings are respectively embedded in the two annular sealing grooves. The outer circumferential surface of the inner pipe 4 is provided with a guide groove parallel to the seal groove, and the guide ring 3 is embedded in the guide groove. The outer ring surface of the combined sealing ring and the guide ring 3 is contacted with the surface of the inner wall of the outer sleeve 1, so that pressure sealing and telescopic guiding are realized.
As shown in fig. 1, the right end of the outer sleeve 1 is sleeved outside the left end of the inner tube 4, the left end of the outer sleeve 1 is provided with an outer sleeve flange 101, and the right end of the inner tube 4 is provided with an inner tube flange 401. The outer sleeve 1 is connected with a flange bolt of the left high-pressure pipeline through an outer sleeve flange 101, and the inner pipe 4 is connected with a flange bolt of the right high-pressure pipeline through an inner pipe flange 401.
As shown in fig. 1, the inner hole of the outer sleeve 1 is a stepped hole, and the left end of the inner hole has an inner tube stopper 102 extending radially inward. The inner tube 4 is a stepped shaft with a through hole, the outer diameter of the left end of the inner tube 4 is slightly smaller than the inner diameter of the right end of the outer sleeve 1, the outer wall is provided with an outer sleeve limiting part 402 extending outwards along the radial direction, and the right end is provided with an inner tube flange 401. After the outer sleeve 1 moves rightwards and/or the inner tube 4 moves leftwards for a certain distance, the left end face of the outer sleeve limiting part 402 abuts against the right end face of the outer sleeve 1, meanwhile, the right end face of the inner tube limiting part 102 abuts against the left end face of the inner tube 4, and the outer sleeve 1 and the inner tube 4 cannot move towards each other any further. That is to say when the high pressure pipeline extends, high pressure pipeline compensator has compensation safety range, makes the high pressure pipeline stretch out and draw back in safe deflection, avoids the elongation too big pipeline damage that leads to the fact.
In the high-pressure pipeline compensator shown in the first embodiment of fig. 1, the adopted sealing ring is a combined sealing ring for a hole, and the adopted guide ring is a guide ring for the hole.
A certain gap is reserved between the inner pipe 4 and the outer sleeve 1 to ensure the convenient installation. The guide ring 3 eliminates this gap to ensure that the telescoping movement between the inner tube 4 and the outer sleeve 1 is in the same axis so that the inner tube 4 and the outer sleeve 1 do not become jammed by deflection.
In order to adapt to different pipeline pressures, the gap between the inner pipe 4 and the outer sleeve 1 can be adjusted during application and design: the higher the pressure, the smaller the gap.
Example two
As shown in fig. 2, in the high-pressure pipe compensator, on the basis of the first embodiment, the combined sealing ring and the guide ring 3 are respectively arranged in two sealing grooves and two guide grooves on the inner hole surface of the outer sleeve 1, and the sealing and guiding principles are the same as those of the first embodiment shown in fig. 1.
As shown in the second embodiment of fig. 2, in the high-pressure pipeline compensator, the adopted seal ring is a combined seal ring for a shaft, and the adopted guide ring is a guide ring for the shaft.
EXAMPLE III
On the basis of the first embodiment, the combined sealing ring is arranged in two sealing grooves in the inner wall of the outer sleeve 1, and the guide ring 3 is arranged in a guide groove in the outer wall of the inner pipe 4. The adopted sealing ring is a combined sealing ring for a shaft, and the adopted guide ring is a guide ring for a hole.
Example four
On the basis of the first embodiment, the combined sealing ring is arranged in two sealing grooves on the outer wall of the inner pipe 4, and the guide ring 3 is arranged in a guide groove on the inner wall of the outer sleeve 1. The adopted sealing ring is a combined sealing ring for a hole, and the adopted guide ring is a guide ring for a shaft.
The combined sealing ring in two structural forms in fig. 1 and 2 is formed by combining a plastic ring with a square (or other shapes) section and an O-shaped sealing ring. The sealing with the structure can bear high pressure of 10-40MPa according to different gaps between the inner pipe 4 and the outer sleeve 1.
The high-pressure pipeline compensator of the utility model adopts the above special structure design, which not only ensures that the high pressure can be borne, but also can realize free expansion and contraction without blocking. Compared with the prior pipeline compensator technology, the pipeline compensator has the following advantages: can bear high pressure up to 10-40MPa, and can realize expansion without blocking.
The utility model also has the advantages of small volume, simple structure, low manufacturing cost, and wide applicability.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate the orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The high-pressure pipeline compensator is characterized by comprising an inner pipe (4), an outer sleeve (1) and at least one sealing element (2), wherein one end of the outer sleeve (1) is sleeved outside one end of the inner pipe (4), and the other end of the outer sleeve (1) is connected with a high-pressure pipeline; the other end of the inner pipe (4) is connected with a high-pressure pipeline, the sealing element is positioned at the joint of the outer sleeve and the inner pipe and clamped between the outer sleeve and the inner pipe, and the inner pipe (4) is communicated with the outer sleeve (1); the inner wall of the outer sleeve (1) is provided with at least one sealing groove for accommodating the sealing element (2), or the outer wall of the inner pipe (4) is provided with at least one sealing groove for accommodating the sealing element (2); the sealing elements (2) are arranged in one-to-one correspondence with the sealing grooves; the inner wall of the outer sleeve (1) is provided with at least one guide groove for accommodating the guide ring (3), or the outer wall of the inner tube (4) is provided with at least one guide groove for accommodating the guide ring (3), and the guide ring (3) and the guide grooves are arranged in a one-to-one correspondence manner.
2. The high-pressure pipe compensator of claim 1, wherein the number of the guide ring is one, the number of the sealing elements is two, the inner wall of the outer sleeve (1) is provided with two sealing grooves for accommodating the sealing elements (2), and the sealing elements (2) are arranged in one-to-one correspondence with the sealing grooves; the inner wall of the outer sleeve (1) is provided with a guide groove for accommodating the guide ring (3).
3. The high-pressure pipe compensator of claim 1, wherein the number of the guide ring is one, the number of the sealing elements is two, the outer wall of the inner pipe (4) is provided with two sealing grooves for accommodating the sealing elements (2), and the sealing elements (2) are arranged in one-to-one correspondence with the sealing grooves; the outer wall of the inner tube (4) has a guide groove for receiving the guide ring (3).
4. The high-pressure pipe compensator of claim 1, wherein the number of the guide ring is one, the number of the sealing elements is two, the inner wall of the outer sleeve (1) is provided with two sealing grooves for accommodating the sealing elements (2), the sealing elements (2) are arranged in one-to-one correspondence with the sealing grooves, and the outer wall of the inner pipe (4) is provided with a guide groove for accommodating the guide ring (3); or the outer wall of the inner pipe (4) is provided with two sealing grooves for accommodating the sealing elements (2), the sealing elements (2) are arranged in one-to-one correspondence with the sealing grooves, and the inner wall of the outer sleeve (1) is provided with a guide groove for accommodating the guide ring (3).
5. A high-pressure pipe compensator according to claim 1, c h a r a c t e r i z e d in that the outer sleeve (1) is connected to the high-pressure pipe by means of an outer sleeve flange (101); the inner pipe (4) is connected with a high-pressure pipeline through an inner pipe flange (401).
6. A high-pressure pipe compensator according to claim 1, wherein the outer wall of the inner pipe (4) has a radially outwardly extending jacket stop (402).
7. A high-pressure pipe compensator according to claim 6, wherein the inner wall of the outer casing (1) has a radially inwardly extending inner pipe stop (102).
8. A high-pressure pipe compensator according to any of claims 1-7, wherein the sealing element (2) is a composite sealing ring.
9. The high pressure pipe compensator of claim 8, wherein the combined seal ring is a sleeved O-ring and a rectangular seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920751114.8U CN211010362U (en) | 2019-05-23 | 2019-05-23 | High-pressure pipeline compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920751114.8U CN211010362U (en) | 2019-05-23 | 2019-05-23 | High-pressure pipeline compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211010362U true CN211010362U (en) | 2020-07-14 |
Family
ID=71506659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920751114.8U Expired - Fee Related CN211010362U (en) | 2019-05-23 | 2019-05-23 | High-pressure pipeline compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211010362U (en) |
-
2019
- 2019-05-23 CN CN201920751114.8U patent/CN211010362U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20210523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |