CN111120764A - High-energy pipeline whipping prevention device - Google Patents
High-energy pipeline whipping prevention device Download PDFInfo
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- CN111120764A CN111120764A CN201911363738.3A CN201911363738A CN111120764A CN 111120764 A CN111120764 A CN 111120764A CN 201911363738 A CN201911363738 A CN 201911363738A CN 111120764 A CN111120764 A CN 111120764A
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- hydraulic damper
- piston
- buffer spring
- piston rod
- oil tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a high-energy pipeline whipping prevention device which comprises a left pin head, a protective cover, a hydraulic damper piston rod, a hydraulic damper left end cover, a hydraulic damper piston, a hydraulic damper cylinder, a hydraulic damper right end cover, a hydraulic damper auxiliary oil tank cylinder, a hydraulic damper auxiliary oil tank piston, a hydraulic damper auxiliary oil tank spring, a hydraulic damper auxiliary oil tank end cover, a right pin head, a hydraulic damper piston left flange, a left buffer spring seat, a left buffer spring, a right buffer spring seat, a hydraulic damper piston right flange, a piston rod nut and the like. According to the invention, through an innovative structural design, the tension and compression buffering devices of the high-energy pipeline whipping prevention device are all arranged in the hydraulic damper, so that the hydraulic damper is simple in structure, small in overall dimension and suitable for occasions with higher installation space requirements, especially occasions in a nuclear island of a nuclear power plant and the like.
Description
Technical Field
The invention relates to a buffering and damping device, in particular to a high-energy pipeline whipping prevention device, and belongs to the field of buffering, damping and energy facilities.
Background
At present, high-energy pipelines generally exist in industries such as electric power, chemical industry and the like, and once the high-energy pipelines are broken, the throwing phenomenon can occur. The commonly used whipping prevention device comprises a U-bar structure, a pressure deformation structure, a door shape structure and the like, in order to meet the requirement of high-energy pipeline thermal displacement, the conventional whipping prevention device must keep a certain thermal displacement safety distance with the high-energy pipeline, and the reserved safety distance is used for absorbing whipping energy through the shaping deformation of a metal material under the action of high-pressure steam when the high-energy pipeline is broken. The patent discloses a technical scheme that high energy pipeline was prevented getting rid of and is hit device 201911316187.5 and proposed, utilize the low-speed normally open function of reverse normal open type check valve, through work fluid low-speed reverse flow and forward flow, satisfy the requirement of high energy pipeline thermal displacement, utilize the blocking function of reverse normal open type check valve, the speed that the restriction high energy pipeline got rid of the hit, the energy of getting rid of final restriction high energy pipeline, the right spring 8 who provides the setting in the left spring of piston rod tip and the right buffering connection lid simultaneously absorbs the impact load when the high energy pipeline gets rid of the hit, play the cushioning effect. For the technical scheme provided by the patent of the high-energy pipeline flail-proof device 201911316187.5, a part of the buffer device is arranged at the end part of the piston rod, on one hand, the buffer capacity of the buffer device is greatly limited due to the limitation of the size of the end part of the piston rod; on the other hand, the size of the left buffer connecting body in the scheme must be reduced, the overall strength of the whipping prevention device can be influenced, and potential safety hazards exist. If the size of the buffer device at the end part of the piston rod is forcibly enlarged by other conversion methods, the buffer capacity and the structural strength are improved, the radial size of the high-energy pipeline whipping prevention device is greatly increased, and higher requirements are brought to the installation space.
Disclosure of Invention
In order to overcome the defects, the invention provides a high-energy pipeline whipping prevention device.
The technical scheme of the invention is as follows:
a high-energy pipeline whipping prevention device comprises a left pin head, a protective cover, a hydraulic damper piston rod, a hydraulic damper left end cover, a hydraulic damper piston, a hydraulic damper cylinder, a hydraulic damper right end cover, a hydraulic damper auxiliary oil tank cylinder, a hydraulic damper auxiliary oil tank piston, a hydraulic damper auxiliary oil tank spring, a hydraulic damper auxiliary oil tank end cover, a right pin head, a hydraulic damper piston left flange, a left buffer spring seat, a left buffer spring, a right buffer spring seat, a hydraulic damper piston right flange, a piston rod nut, a first reverse normally-open check valve, a second reverse normally-open check valve and a third reverse normally-open check valve;
a piston rod first step and a piston rod second step are machined on the right part of the piston rod of the hydraulic damper, and threads are machined on the piston rod second step; the first reverse normally-open one-way valve and the second reverse normally-open one-way valve are installed inside the right side of the piston rod of the hydraulic damper, an outlet of the first reverse normally-open one-way valve is communicated with the periphery of the piston rod on the left side of the first step of the piston rod in a radial mode through a flow channel, an outlet of the second reverse normally-open one-way valve is communicated with the end face of the rightmost end of the piston rod through the flow channel, and an inlet of the first reverse normally-open one-way valve is communicated with an inlet of the second reverse normally-open one; the third reverse normally-open one-way valve is installed in the right end cover of the hydraulic damper, an outlet of the third reverse normally-open one-way valve is communicated with the left end face of the right end cover of the hydraulic damper through a flow channel, and an inlet of the third reverse normally-open one-way valve is communicated with the right end face of the right end cover of the hydraulic damper through the flow channel; a piston left spring accommodating cavity and a piston right spring accommodating cavity are respectively machined in the left side and the right side of the hydraulic damper piston; the left buffer spring seat, the left buffer spring, the hydraulic damper piston, the right buffer spring and the right buffer spring seat are sequentially sleeved on the first step of the piston rod from right to left, and the piston rod nut is reliably connected with the thread on the second step of the piston rod; the left buffer spring and the right buffer spring are respectively arranged in the piston left spring accommodating cavity and the piston right spring accommodating cavity, and have certain precompression force; a sealing element is arranged between the hydraulic damper piston rod and the hydraulic damper piston, and meanwhile, the hydraulic damper piston rod and the hydraulic damper piston can form relative axial movement with a certain movement amount; the hydraulic damper piston left flange and the hydraulic damper piston right flange are respectively and reliably arranged on the left side and the right side of the hydraulic damper piston to limit the limit positions of the left buffer spring seat and the right buffer spring seat; the hydraulic damper piston rod, the left buffer spring seat, the left buffer spring, the hydraulic damper piston, the right buffer spring and the right buffer spring seat form a component which is installed into the hydraulic damper cylinder barrel; a hydraulic damper left working cavity C, a hydraulic damper right working cavity D and an auxiliary oil tank E are formed inside the hydraulic damper, working oil is filled in the hydraulic damper left working cavity C, the hydraulic damper right working cavity D and the auxiliary oil tank E, and the hydraulic damper left working cavity C, the hydraulic damper right working cavity D and the auxiliary oil tank E are communicated with each other through a first reverse normally-open one-way valve, a second reverse normally-open one-way valve, a third reverse normally-open one-way valve and related flow channels;
the protective cover is sleeved outside the hydraulic damper, and the left end of the protective cover is reliably connected with the left end thread of the piston rod of the hydraulic damper; the left pin head is reliably connected with the left end thread of the hydraulic damper piston rod; the right pin head is reliably connected with the cylinder barrel of the auxiliary oil tank of the hydraulic damper; the left end of the auxiliary oil tank cylinder barrel of the hydraulic damper is reliably connected with the right end cover of the hydraulic damper.
The auxiliary oil tank formed by the hydraulic damper auxiliary oil tank cylinder barrel, the hydraulic damper auxiliary oil tank piston, the hydraulic damper auxiliary oil tank spring and the hydraulic damper auxiliary oil tank end cover is arranged in series or arranged circumferentially or externally.
The left pin head and the right pin head are connected with the external pin base in a pin shaft connection mode, a spherical hinge connection mode or a flange connection mode.
The left buffer spring and the right buffer spring are one of a cylindrical compression spring, a belleville spring, a rubber elastic body, a nylon elastic body and a polyurethane elastic body.
One end of a high-energy pipeline whipping prevention device is connected to a basic mounting seat, the other end of the high-energy pipeline whipping prevention device is connected to the high-energy pipeline through a pipe clamp, and the left pin head and the right pin head of the high-energy pipeline whipping prevention device can axially move relatively.
The whipping of a high energy pipeline is actually an impact.
When a high-energy pipeline is flapped, and an impact tensile load is formed on a high-energy pipeline flail-impact prevention device, a left pin head and a right pin head form tensile motion, the impact tensile load acts on the left pin head and is transmitted to a hydraulic damper, because the impact speed is high, a first reverse normally-open one-way valve is instantly closed in the hydraulic damper, working oil in a left working cavity C of the hydraulic damper is completely closed and cannot flow into a right working cavity D of the hydraulic damper, further increase of flail-impact energy is limited, when the impact tensile load is larger than the precompression force of a right buffer spring, the left pin head drives a piston rod and a piston rod nut of the hydraulic damper to overcome the precompression force of the right buffer spring through a right buffer spring seat, the right buffer spring is further compressed, relative motion is formed between the piston rod of the hydraulic damper and the piston of the hydraulic damper, and the left pin head forms leftward motion relative to the right pin head, the acting time of the tensile and compressive load is prolonged, and the peak value of the impact tensile load is reduced; when a high-energy pipeline is flapped, impact compression load is formed on a high-energy pipeline flail-impact prevention device, compression motion is formed between a left pin head and a right pin head, the impact compression load acts on the left pin head and is transmitted to a hydraulic damper, due to the fact that impact speed is high, a second reverse normally-open one-way valve and a third reverse normally-open one-way valve are instantly locked in the hydraulic damper, working oil in a right working cavity D of the hydraulic damper is completely sealed and cannot flow into a left working cavity C and an auxiliary oil tank E of the hydraulic damper, further increase of flail-impact energy is limited, when the impact compression load is larger than pre-compression force of a left buffer spring, the left pin head drives a piston rod of the hydraulic damper to overcome pre-compression force of the left buffer spring through a left buffer spring seat, the left buffer spring is further compressed, relative motion is formed between the piston rod of the hydraulic damper and a piston of the hydraulic damper, the left pin head moves rightwards relative to the right pin head, so that the acting time of the impact compression load is prolonged, and the peak value of the impact compression load is reduced; a high-energy pipeline whipping prevention device can achieve the effect of reducing the peak value of impact load in the stretching and compressing directions when the high-energy pipeline is whipped.
The utility model provides a high energy pipeline prevents whipping device does not take place the whipping at the high energy pipeline, normal work, when the high energy pipeline produced the thermal displacement, the left round pin head and the right round pin head of a high energy pipeline prevents whipping device also can form relative axial motion, but the velocity of motion this moment is very low, first reverse normal open check valve in a high energy pipeline prevents whipping device, the locking can not take place for reverse normal open check valve of second and third, the working fluid in hydraulic damper left working chamber C, hydraulic damper right working chamber D and the auxiliary oil case E can the free circulation, the damping force of production is very little, a high energy pipeline prevents whipping device follows the high energy pipeline and does follow-up the motion, do not produce additional resistance almost to the high energy pipeline.
The utility model provides a high energy pipeline prevents whipping device can play the cushioning effect to the whipping of high energy pipeline on the one hand, on the other hand can effectively restrict the further increase of high energy pipeline whipping energy.
The invention has the beneficial effects that:
according to the technical scheme provided by the invention, the tension and compression buffering devices of the high-energy pipeline whipping prevention device are arranged in the hydraulic damper, so that the hydraulic damper is simple in structure, small in overall dimension and suitable for occasions with higher installation space requirements, especially occasions in a nuclear island of a nuclear power plant and the like.
When the high-energy pipeline is flapped, the flail impact of the high-energy pipeline can be buffered, and the further increase of the flail impact energy of the high-energy pipeline can be effectively limited. When the high-energy pipeline normally works and generates thermal displacement, the high-energy pipeline is followed to move, and almost no additional resistance is generated on the high-energy pipeline.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are given in the accompanying drawings.
A high-energy pipeline whipping prevention device comprises a left pin head 1, a protective cover 2, a hydraulic damper piston rod 3, a hydraulic damper left end cover 4, a hydraulic damper piston 5, a hydraulic damper cylinder 6, a hydraulic damper right end cover 7, a hydraulic damper auxiliary oil tank cylinder 8, a hydraulic damper auxiliary oil tank piston 9, a hydraulic damper auxiliary oil tank spring 10, a hydraulic damper auxiliary oil tank end cover 11, a right pin head 12, a hydraulic damper piston left flange 13, a left buffer spring seat 14, a left buffer spring 15, a right buffer spring 16, a right buffer spring seat 17, a hydraulic damper piston right flange 18, a piston rod nut 19, a first reverse normally-open one-way valve 20, a second reverse normally-open one-way valve 21 and a third reverse normally-open one-way valve 22;
a piston rod first step 3-1 and a piston rod second step 3-2 are processed at the right part of the piston rod 3 of the hydraulic damper, and a thread is processed on the piston rod second step 3-2; the first reverse normally-open one-way valve 20 and the second reverse normally-open one-way valve 21 are installed inside the right side of the piston rod 3 of the hydraulic damper, an outlet of the first reverse normally-open one-way valve 20 is communicated with the periphery of the piston rod on the left side of a first step 3-1 of the piston rod in a radial mode through a flow channel, an outlet of the second reverse normally-open one-way valve 21 is communicated with the end face of the rightmost end of the piston rod through the flow channel, and an inlet of the first reverse normally-open one-way valve 20 is communicated with an inlet of the second reverse normally-open one-; the third reverse normally-open one-way valve 22 is installed in the right end cover 7 of the hydraulic damper, an outlet of the third reverse normally-open one-way valve 22 is communicated with the left end face of the right end cover 7 of the hydraulic damper through a flow channel, and an inlet of the third reverse normally-open one-way valve 22 is communicated with the right end face of the right end cover 7 of the hydraulic damper through a flow channel; a piston left spring accommodating cavity and a piston right spring accommodating cavity are respectively processed in the left side and the right side of the hydraulic damper piston 5; the left buffer spring seat 14, the left buffer spring 15, the hydraulic damper piston 5, the right buffer spring 16 and the right buffer spring seat 17 are sequentially sleeved on the first step 3-1 of the piston rod from right to left, and the piston rod nut 19 is reliably connected with the thread on the second step 3-2 of the piston rod; the left buffer spring 15 and the right buffer spring 16 are respectively arranged in the piston left spring accommodating cavity and the piston right spring accommodating cavity, and the left buffer spring 15 and the right buffer spring 16 have certain precompression force; a sealing element is arranged between the hydraulic damper piston rod 3 and the hydraulic damper piston 5, and meanwhile, relative axial movement with a certain movement amount can be formed between the hydraulic damper piston rod 3 and the hydraulic damper piston 5; the hydraulic damper piston left flange 13 and the hydraulic damper piston right flange 18 are respectively and reliably mounted on the left side and the right side of the hydraulic damper piston 5 to limit the limit positions of the left buffer spring seat 14 and the right buffer spring seat 17; the hydraulic damper piston rod 3, the left buffer spring seat 14, the left buffer spring 15, the hydraulic damper piston 5, the right buffer spring 16 and the right buffer spring seat 17 form a component which is installed into the hydraulic damper cylinder 6; a hydraulic damper left working cavity C, a hydraulic damper right working cavity D and an auxiliary oil tank E are formed inside the hydraulic damper, working oil is filled in the hydraulic damper left working cavity C, the hydraulic damper right working cavity D and the auxiliary oil tank E, and the hydraulic damper left working cavity C, the hydraulic damper right working cavity D and the auxiliary oil tank E are communicated with each other through a first reverse normally-open one-way valve 20, a second reverse normally-open one-way valve 21, a third reverse normally-open one-way valve 22 and related flow passages;
the protective cover 2 is sleeved outside the hydraulic damper, and the left end of the protective cover 2 is reliably connected with the left end thread of the hydraulic damper piston rod 3; the left pin head 1 is reliably connected with the left end thread of the hydraulic damper piston rod 3; the right pin head 12 and the hydraulic damper auxiliary oil tank cylinder barrel 8 form reliable connection; the left end of the auxiliary oil tank cylinder barrel 8 of the hydraulic damper is reliably connected with the right end cover 7 of the hydraulic damper.
The auxiliary oil tank formed by the hydraulic damper auxiliary oil tank cylinder 8, the hydraulic damper auxiliary oil tank piston 9, the hydraulic damper auxiliary oil tank spring 10 and the hydraulic damper auxiliary oil tank end cover 11 is arranged in series or circumferentially or externally.
The left pin head 1 and the right pin head 12 are connected with the external pin base in a pin shaft connection mode, a spherical hinge connection mode or a flange connection mode.
The left buffer spring 15 and the right buffer spring 16 are one of a cylindrical compression spring, a belleville spring, a rubber elastic body, a nylon elastic body, and a polyurethane elastic body.
One end of a high-energy pipeline whipping prevention device is connected to a basic mounting seat, the other end of the high-energy pipeline whipping prevention device is connected to the high-energy pipeline through a pipe clamp, and the left pin head 1 and the right pin head 12 of the high-energy pipeline whipping prevention device can axially move relatively.
The whipping of a high energy pipeline is actually an impact.
When a high-energy pipeline is flapped, impact tensile load is formed on a high-energy pipeline flail-proof device, tensile motion is formed between a left pin head 1 and a right pin head 12, the impact tensile load acts on the left pin head 1 and is transmitted to a hydraulic damper, because of high impact speed, a first reverse normally-open check valve 20 is instantly closed in the hydraulic damper, working oil in a left working cavity C of the hydraulic damper is completely closed and cannot flow into a right working cavity D of the hydraulic damper, further increase of flail-impact energy is limited, when the impact tensile load is larger than the precompression force of a right buffer spring 16, the left pin head 1 drives a piston rod 3 of the hydraulic damper and a piston rod nut 19 to overcome the precompression force of the right buffer spring 16 through a right buffer spring seat 17, the right buffer spring 16 is further compressed, relative motion is formed between the piston rod 3 of the hydraulic damper and a piston 5 of the hydraulic damper, the left pin head 1 moves leftwards relative to the right pin head 12, so that the acting time of tensile and compressive loads is prolonged, and the peak value of impact tensile loads is reduced; when a high-energy pipeline is flapped and impact compression load is formed on a high-energy pipeline flail-impact prevention device, compression motion is formed between a left pin head 1 and a right pin head 12, the impact compression load acts on the left pin head 1 and is transmitted to a hydraulic damper, due to the fact that impact speed is high, a second reverse normally-open one-way valve 21 and a third reverse normally-open one-way valve 22 in the hydraulic damper are instantly locked, working oil in a right working cavity D of the hydraulic damper is completely sealed and cannot flow into a left working cavity C and an auxiliary oil tank E of the hydraulic damper, further increase of flail-impact energy is limited, when the impact compression load is larger than pre-compression force of a left buffer spring 15, the left pin head 1 drives a piston rod 3 of the hydraulic damper to overcome the pre-compression force of the left buffer spring 15 through a left buffer spring seat 14, the left buffer spring 15 is further compressed, the piston rod 3 of the hydraulic damper and the piston rod 5 of the hydraulic damper form relative motion, the left pin head 1 moves rightwards relative to the right pin head 12, so that the acting time of the impact compression load is prolonged, and the peak value of the impact compression load is reduced; a high-energy pipeline whipping prevention device can achieve the effect of reducing the peak value of impact load in the stretching and compressing directions when the high-energy pipeline is whipped.
A high-energy pipeline whipping prevention device does not whip in a high-energy pipeline and normally works, when the high-energy pipeline generates thermal displacement, a left pin head 1 and a right pin head 12 of the high-energy pipeline whipping prevention device can also form relative axial movement, but the movement speed at the moment is very low, a first reverse normally-open check valve 20, a second reverse normally-open check valve 21 and a third reverse normally-open check valve 22 in the high-energy pipeline whipping prevention device cannot be locked, working oil in a left working cavity C of a hydraulic damper, a right working cavity D of the hydraulic damper and an auxiliary oil tank E can freely circulate, the generated damping force is very small, the high-energy pipeline whipping prevention device follows the high-energy pipeline to move along with the high-energy pipeline, and almost no additional resistance is generated for the high-energy pipeline.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (4)
1. The utility model provides a high energy pipeline prevents whipping device which characterized in that: the hydraulic damper auxiliary oil tank piston structure comprises a left pin head (1), a protective cover (2), a hydraulic damper piston rod (3), a hydraulic damper left end cover (4), a hydraulic damper piston (5), a hydraulic damper cylinder barrel (6), a hydraulic damper right end cover (7), a hydraulic damper auxiliary oil tank cylinder barrel (8), a hydraulic damper auxiliary oil tank piston (9), a hydraulic damper auxiliary oil tank spring (10), a hydraulic damper auxiliary oil tank end cover (11), a right pin head (12), a hydraulic damper piston left flange (13), a left buffer spring seat (14), a left buffer spring (15), a right buffer spring (16), a right buffer spring seat (17), a hydraulic damper piston right flange (18), a piston rod nut (19), a first reverse normally-open one-way valve (20), a second reverse normally-open one-way valve (21) and a third reverse normally-open one-way valve (22);
a piston rod first step (3-1) and a piston rod second step (3-2) are machined at the right part of the piston rod (3) of the hydraulic damper, and threads are machined on the piston rod second step (3-2); the first reverse normally-open one-way valve (20) and the second reverse normally-open one-way valve (21) are installed inside the right side of the piston rod (3) of the hydraulic damper, an outlet of the first reverse normally-open one-way valve (20) is communicated with the periphery of the piston rod on the left side of the first step (3-1) of the piston rod in a radial mode through a flow channel, an outlet of the second reverse normally-open one-way valve (21) is communicated with the end face of the rightmost end of the piston rod through the flow channel, and an inlet of the first reverse normally-open one-way valve (20) is communicated with an inlet of the second reverse normally-open one-way; the third reverse normally-open one-way valve (22) is installed in the right end cover (7) of the hydraulic damper, an outlet of the third reverse normally-open one-way valve (22) is communicated with the left end face of the right end cover (7) of the hydraulic damper through a flow channel, and an inlet of the third reverse normally-open one-way valve (22) is communicated with the right end face of the right end cover (7) of the hydraulic damper through the flow channel; a piston left spring accommodating cavity and a piston right spring accommodating cavity are respectively machined in the left side and the right side of the hydraulic damper piston (5); the left buffer spring seat (14), the left buffer spring (15), the hydraulic damper piston (5), the right buffer spring (16) and the right buffer spring seat (17) are sequentially sleeved on the first step (3-1) of the piston rod from right to left, and the piston rod nut (19) is reliably connected with the thread on the second step (3-2) of the piston rod; the left buffer spring (15) and the right buffer spring (16) are respectively arranged in the piston left spring accommodating cavity and the piston right spring accommodating cavity, and the left buffer spring (15) and the right buffer spring (16) have certain precompression force; a sealing element is arranged between the hydraulic damper piston rod (3) and the hydraulic damper piston (5), and meanwhile, the hydraulic damper piston rod (3) and the hydraulic damper piston (5) can form relative axial movement with a certain movement amount; the hydraulic damper piston left flange (13) and the hydraulic damper piston right flange (18) are respectively and reliably mounted on the left side and the right side of the hydraulic damper piston (5) to limit the limit positions of the left buffer spring seat (14) and the right buffer spring seat (17); the hydraulic damper piston rod (3), the left buffer spring seat (14), the left buffer spring (15), the hydraulic damper piston (5), the right buffer spring (16) and the right buffer spring seat (17) form a component which is installed in the hydraulic damper cylinder barrel (6); a hydraulic damper left working cavity C, a hydraulic damper right working cavity D and an auxiliary oil tank E are formed inside the hydraulic damper, working oil is filled in the hydraulic damper left working cavity C, the hydraulic damper right working cavity D and the auxiliary oil tank E, and the hydraulic damper left working cavity C, the hydraulic damper right working cavity D and the auxiliary oil tank E are communicated with each other through a first reverse normally-open one-way valve (20), a second reverse normally-open one-way valve (21), a third reverse normally-open one-way valve (22) and related flow channels;
the protective cover (2) is sleeved outside the hydraulic damper, and the left end of the protective cover (2) is reliably connected with the left end thread of the hydraulic damper piston rod (3); the left pin head (1) is reliably connected with the left end thread of the hydraulic damper piston rod (3); the right pin head (12) is reliably connected with the auxiliary oil tank cylinder barrel (8) of the hydraulic damper; the left end of the auxiliary oil tank cylinder barrel (8) of the hydraulic damper is reliably connected with the right end cover (7) of the hydraulic damper.
2. The high-energy pipeline flail-resistant device according to claim 1, characterized in that: the auxiliary oil tank formed by the hydraulic damper auxiliary oil tank cylinder barrel (8), the hydraulic damper auxiliary oil tank piston (9), the hydraulic damper auxiliary oil tank spring (10) and the hydraulic damper auxiliary oil tank end cover (11) is arranged in series or arranged circumferentially or externally.
3. The high-energy pipeline flail-resistant device according to claim 1, characterized in that: the left pin head (1) and the right pin head (12) are connected with the external pin base in a pin shaft connection mode, a spherical hinge connection mode or a flange connection mode.
4. The high-energy pipeline flail-resistant device according to claim 1, characterized in that: the left buffer spring (15) and the right buffer spring (16) are one of cylindrical compression springs, belleville springs, rubber elastomers, nylon elastomers and polyurethane elastomers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363738.3A CN111120764A (en) | 2019-12-26 | 2019-12-26 | High-energy pipeline whipping prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363738.3A CN111120764A (en) | 2019-12-26 | 2019-12-26 | High-energy pipeline whipping prevention device |
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| Publication Number | Publication Date |
|---|---|
| CN111120764A true CN111120764A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911363738.3A Pending CN111120764A (en) | 2019-12-26 | 2019-12-26 | High-energy pipeline whipping prevention device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994018488A1 (en) * | 1993-02-09 | 1994-08-18 | Hydraulic Power Systems, Inc. | Pulsation damper device |
| CN206054608U (en) * | 2016-06-17 | 2017-03-29 | 国网江苏省电力公司电力科学研究院 | A kind of MR vibration damper suitable for overhead transmission line |
| CN107685745A (en) * | 2017-09-12 | 2018-02-13 | 河海大学常州校区 | A kind of vehicle bumper connector |
| CN108443388A (en) * | 2018-03-28 | 2018-08-24 | 河海大学常州校区 | A kind of pantograph damper |
| CN108953461A (en) * | 2018-07-12 | 2018-12-07 | 河海大学常州校区 | A kind of in-line arrangement hydraulic damper |
-
2019
- 2019-12-26 CN CN201911363738.3A patent/CN111120764A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994018488A1 (en) * | 1993-02-09 | 1994-08-18 | Hydraulic Power Systems, Inc. | Pulsation damper device |
| CN206054608U (en) * | 2016-06-17 | 2017-03-29 | 国网江苏省电力公司电力科学研究院 | A kind of MR vibration damper suitable for overhead transmission line |
| CN107685745A (en) * | 2017-09-12 | 2018-02-13 | 河海大学常州校区 | A kind of vehicle bumper connector |
| CN108443388A (en) * | 2018-03-28 | 2018-08-24 | 河海大学常州校区 | A kind of pantograph damper |
| CN108953461A (en) * | 2018-07-12 | 2018-12-07 | 河海大学常州校区 | A kind of in-line arrangement hydraulic damper |
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Application publication date: 20200508 |
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| RJ01 | Rejection of invention patent application after publication |