CN109595375B - Oil field pipeline transportation safety valve - Google Patents
Oil field pipeline transportation safety valve Download PDFInfo
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- CN109595375B CN109595375B CN201910077630.1A CN201910077630A CN109595375B CN 109595375 B CN109595375 B CN 109595375B CN 201910077630 A CN201910077630 A CN 201910077630A CN 109595375 B CN109595375 B CN 109595375B
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- iron core
- spring
- partition plate
- pipe body
- valve
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
Abstract
The invention discloses an oil field pipeline conveying safety valve. Two ends of the pipe body are used for connecting an oil conveying pipe; the upper part of the pipe body is connected with a valve port, the top end of the valve port is fixed with a valve cover, and the valve port is communicated with the inside of the pipe body; the area of the partition board is consistent with the end face of the pipe body; the circular outer side surface of the partition plate is welded and fixed with the inner wall of the pipe body; the center of the partition plate comprises an oil delivery through hole, and the diameter of the oil delivery through hole is smaller than that of the first spring; the connecting column penetrates through the oil transportation through hole; one end of the connecting column penetrates through the inside of the first spring and is connected with the baffle; the other end is connected with the sealing plate; the baffle and the sealing plate are both parallel to the partition plate; the first iron core is fixed in the valve port through a second spring, one end of the second spring is fixed with the valve cover, the other end of the second spring is fixedly connected with the first iron core, and the second iron core is correspondingly fixed on the lower pipe wall of the pipe body; and a coil is wound outside the second iron core and is connected with the output end of the control circuit. The invention can cut off the petroleum passage in the pipeline in time when a fire disaster happens, thereby ensuring the safety of the pipeline.
Description
Technical Field
The invention relates to the field of oilfield equipment, in particular to an oilfield pipeline conveying safety valve.
Background
With the development of economy in China, the demand of petroleum and natural gas is rapidly increased. Pipeline transportation plays an increasingly important role as the main transportation mode of petroleum and natural gas. In the process of pipeline transportation in petrochemical industry, if a certain transportation pipeline has abnormal conditions such as fire and the like, the passage of petroleum in the pipeline must be cut off quickly and timely, so that fire accidents and leakage accidents are avoided, and otherwise, great potential safety hazards can appear. The existing safety valve is only a pressure safety valve generally, and measures cannot be taken in time when a fire disaster happens, so that the safety of a pipeline is ensured, and the damage to personnel is avoided.
Disclosure of Invention
The invention aims to provide an oil field pipeline conveying safety valve which can cut off an oil passage in a pipeline in time when a fire disaster happens, so that the safety of the pipeline is ensured.
In order to achieve the purpose, the invention provides the following scheme:
an oilfield pipelining safety valve, comprising: the valve comprises a pipe body, a partition plate, a connecting column, a baffle plate, a first spring, a sealing plate, a valve port, a valve cover, an iron core pair, a second spring and a control circuit; two ends of the pipe body are used for connecting an oil conveying pipe; the upper part of the pipe body is connected with the valve port, the top end of the valve port is fixed with the valve cover, and the valve port is communicated with the inside of the pipe body; the partition plate, the baffle plate, the first spring, the sealing plate, the second spring and the control circuit are all positioned in the pipe body;
the partition plate is a circular partition plate, and the area of the partition plate is consistent with that of the end face of the pipe body; the circular outer side face of the partition plate is fixedly welded with the inner wall of the pipe body; the center of the partition plate comprises an oil delivery through hole, and the diameter of the oil delivery through hole is smaller than that of the first spring;
the connecting column penetrates through the oil transportation through hole; the first end of the connecting column penetrates through the inside of the first spring and is connected with the baffle; the first spring is positioned between the baffle plate and the partition plate; the second end of the connecting column is connected with the sealing plate; the baffle plate and the sealing plate are both circular plates, and the areas of the baffle plate and the sealing plate are both larger than the area of the oil transportation through hole; the round surfaces of the baffle and the sealing plate are parallel to the round surface of the baffle; when the sealing plate is in contact with the partition plate, the baffle plate is not in contact with the partition plate, and the first spring is in a compressed state;
the iron core pair comprises a first iron core and a second iron core, the first iron core is fixed in the valve port through the second spring, the first end of the second spring is fixedly connected with the valve cover, the second end of the second spring is fixedly connected with the upper end face of the first iron core, and the second iron core is correspondingly fixed on the lower pipe wall of the pipe body; the elastic force direction of the second spring is vertical to the elastic force direction of the first spring; a coil is wound outside the second iron core and is connected with the output end of the control circuit;
the control circuit comprises a power supply and a thermistor, and when the resistance value of the thermistor is larger than a set resistance value, the control circuit is conducted.
Optionally, the sum of the height of the first iron core and the height of the second iron core is greater than the diameter of the pipe body.
Optionally, a convex column is fixed at the center of the lower end face of the first iron core, and a groove is fixed at the center of the upper end face of the second iron core; the size of recess with the size matching of projection, work as the lower terminal surface of first iron core with during the up end contact of second iron core, the projection joint with in the recess.
Optionally, when the control circuit is not turned on, the first iron core and the second iron core are not in contact; when the control circuit is switched on, the lower end face of the first iron core is attached to the upper end face of the second iron core.
Optionally, the alarm further comprises an alarm, a power line of the alarm is connected to a channel in the control circuit, and when the control circuit is switched on, the alarm starts to alarm.
Optionally, the control circuit specifically includes: the power supply comprises a first power supply, a second power supply, a first path, a second path, a voltage comparator and a triode;
the first channel is connected with a first resistor and a thermistor, the first end of the first channel is connected with the anode of the first power supply, and the second end of the first channel is connected with the cathode of the first power supply; a third resistor and a fourth resistor are connected to the second path, a first end of the second path is connected with the anode of the first power supply, and a second end of the second path is connected with the cathode of the first power supply;
the input end of the voltage comparator is connected with the first path and is connected between the first resistor and the thermistor; the input end of the reference circuit of the voltage comparator is connected with the second path and is connected between the third resistor and the fourth resistor; the output end of the voltage comparator is connected with the base electrode of the triode;
the collector of the triode is connected with the anode of the second power supply; and the emitting electrode of the triode is connected with the first end of the coil, and the second end of the coil is connected with the negative electrode of the second power supply.
Optionally, there is no gap between the circular outer side surface of the partition plate and the inner wall of the pipe body.
Optionally, the inner wall of the valve cover is provided with an internal thread, the outer part of the top end of the valve port is provided with an external thread, and the valve cover is connected with the valve port in a thread fit manner.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, the on-off of the control circuit is controlled through the thermistor, so that the laminating state of the iron core pairs is realized. When a fire disaster occurs, the temperature rises, the control circuit is conducted through the thermistor, and then the magnetic force generated by the iron core is greater than the elastic force of the second spring, the iron core is attached to each other, the passage inside the pipe body is blocked, and the effect of blocking the oil passage is achieved. Meanwhile, the pressure safety valve keeps the performance of the pressure safety valve and ensures the safe operation of the petroleum pipeline through the design of the partition plate, the connecting column, the baffle plate, the first spring and the sealing plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an oilfield pipeline transportation safety valve according to the present invention;
FIG. 2 is a schematic diagram of a control circuit according to the present invention.
Corresponding reference numerals in the figures are: the valve comprises a pipe body 1, a partition plate 2, a connecting column 3, a baffle plate 4, a first spring 5, a sealing plate 6, a valve port 7, a valve cover 8, a first iron core 9-1, a second iron core 9-2 and a second spring 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic structural diagram of the oilfield pipeline transportation safety valve of the present invention. As shown in fig. 1, the oilfield pipelining safety valve includes: the valve comprises a tube body 1, a partition plate 2, a connecting column 3, a baffle plate 4, a first spring 5, a sealing plate 6, a valve port 7, a valve cover 8, an iron core pair (comprising a first iron core 9-1 and a second iron core 9-2), a second spring 10 and a control circuit (not marked in the figure).
Two ends of the pipe body 1 are used for connecting an oil conveying pipe; the upper part of the pipe body 1 is connected with the valve port 7, the top end of the valve port 7 is fixed with the valve cover 8, and the valve port 7 is communicated with the inside of the pipe body 1. The valve port 7 and the valve cover 8 can be connected in a thread fit manner, at the moment, an inner thread is arranged on the inner wall of the valve cover 8, an outer thread is arranged on the outer portion of the top end of the valve port 7, and the valve cover 8 and the valve port 7 are connected in a thread fit manner. Other connection modes can be adopted to fix the valve port 7 and the valve cover 8 according to actual requirements. The partition plate 2, the baffle plate 4, the first spring 5, the sealing plate 6, the second spring 10 and the control circuit are all located in the pipe body 1.
The partition plate 2 is a circular partition plate, and the area of the partition plate 2 is consistent with that of the end face of the pipe body 1; the circular outer side surface of the partition plate 2 is welded and fixed with the inner wall of the pipe body 1; the center of the partition plate 2 comprises an oil delivery through hole, and the diameter of the oil delivery through hole is smaller than that of the first spring 5. And no gap is reserved between the circular outer side surface of the partition plate 2 and the inner wall of the pipe body 1. And the oil delivery through hole of the partition plate 2 is used for communicating an oil way.
The connecting column 3 penetrates through the oil transportation through hole; the first end of the connecting column 3 penetrates through the inside of the first spring 5 and is connected with the baffle 4; the first spring 5 is positioned between the baffle 4 and the partition plate 3; the second end of the connecting column 3 is connected with the sealing plate 6; the baffle plate 4 and the sealing plate 6 are both circular plates, and the areas of the baffle plate 4 and the sealing plate 6 are both larger than the area of the oil transportation through hole; the round surfaces of the baffle 4 and the sealing plate 6 are parallel to the round surface of the baffle 2; when the sealing plate 6 is in contact with the partition plate 2, the baffle plate 4 is not in contact with the partition plate 2, and the first spring 5 is in a compressed state. When the oil pipeline runs normally, the first spring 5 is in a micro-compression state, and the sealing plate 6 is in contact with the partition plate 2 at the moment. When oil pipeline left side pressure was too big, through compressing first spring 5 for closing plate 6 and baffle 2 contactless, the oil circuit switches on in the body 1, realizes the pressure release of oil circuit.
The iron core pair comprises a first iron core 9-1 and a second iron core 9-2, the first iron core 9-1 is fixed in the valve port 7 through a second spring 10, a first end of the second spring 10 is fixedly connected with the valve cover 8, a second end of the second spring 10 is fixedly connected with an upper end face of the first iron core 9-1, and the second iron core 9-2 is correspondingly fixed on a lower tube wall of the tube body 1. The second iron core 9-2 can be fixed with the lower pipe wall of the pipe body 1 through a buffer device, and seamless connection between the lower end face of the second iron core 9-2 and the lower pipe wall of the pipe body 1 is achieved. The sum of the height of the first iron core 9-1 and the height of the second iron core 9-2 is larger than the diameter of the pipe body 1.
The elastic direction of the second spring 10 is vertical to the elastic direction of the first spring 5; and a coil is wound outside the second iron core 9-2 and is connected with the output end of the control circuit. The control circuit comprises a power supply and a thermistor, and when the resistance value of the thermistor is larger than a set resistance value, the control circuit is conducted. When the control circuit is not conducted, the first iron core 9-1 is not contacted with the second iron core 9-2; when the control circuit is switched on, the lower end face of the first iron core 9-1 is attached to the upper end face of the second iron core 9-2.
Preferably, but not limited to, a convex column is fixed at the center of the lower end face of the first iron core 9-1, and a groove is fixed at the center of the upper end face of the second iron core 9-2; the size of the groove is matched with that of the convex column, when the lower end face of the first iron core 9-1 is in contact with the upper end face of the second iron core 9-2, the convex column is clamped in the groove, seamless clamping is achieved, and the efficiency of blocking an oil passage is further improved.
Furthermore, the safety valve for oil field pipeline transportation further comprises an alarm, a power line of the alarm is connected to a channel in the control circuit, and when the control circuit is switched on, the alarm starts to give an alarm to remind workers of fire hazards.
Fig. 2 shows a detailed structure of the control circuit, and fig. 2 is a schematic diagram of the control circuit according to the present invention. The control circuit specifically includes: the power supply comprises a first power source vcc1, a second power source vcc2, a first path, a second path, a voltage comparator and a triode.
The first path is connected with a first resistor R1And a thermistor RCA first end of the first path is connected to a positive electrode of the first power source vcc1, and a second end of the first path is connected to a negative electrode (ground) of the first power source. The second path is connected with a third resistor R3And a fourth resistor R4A first end of the second path is connected to the positive electrode of the first power source vcc1, and a second end of the second path is connected to the negative electrode (ground) of the first power source vcc 1.
The input end of the voltage comparator is connected with the first path and the first resistor R1And a thermistor RCTo (c) to (d); the reference circuit input end of the voltage comparator is connected with the second path and is connected with a third resistor R3And a fourth resistor R4In the meantime. The output end of the voltage comparator is connected with the base electrode of the triode; the collector of the triode is connected with the anode of the second power source vcc2, and a resistor R is connected between the collector of the triode and the second power source vcc25(ii) a The emitter of the triode is connected with the first end of the coil, and the second end of the coil is connected with the negative electrode of the second power source vcc2 (grounded).
When a fire disaster occurs, the resistance value of the thermistor is increased, so that the voltage of the input end of the voltage comparator is larger than the voltage value of the input end of the reference circuit, the voltage comparator outputs a signal, the triode is conducted, and a channel is formed. At the moment, current passes through the coil, so that the first iron core and the second iron core are magnetized and are attached to each other, and the effect of blocking an oil path in the tube body is achieved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. An oilfield pipelining safety valve, comprising: the valve comprises a pipe body, a partition plate, a connecting column, a baffle plate, a first spring, a sealing plate, a valve port, a valve cover, an iron core pair, a second spring and a control circuit; two ends of the pipe body are used for connecting an oil conveying pipe; the upper part of the pipe body is connected with the valve port, the top end of the valve port is fixed with the valve cover, and the valve port is communicated with the inside of the pipe body; the partition plate, the baffle plate, the first spring, the sealing plate, the second spring and the control circuit are all positioned in the pipe body;
the partition plate is a circular partition plate, and the area of the partition plate is consistent with the area of the end face of the pipe body; the circular outer side face of the partition plate is fixedly welded with the inner wall of the pipe body; the center of the partition plate comprises an oil delivery through hole, and the diameter of the oil delivery through hole is smaller than that of the first spring;
the connecting column penetrates through the oil transportation through hole; the first end of the connecting column penetrates through the inside of the first spring and is connected with the baffle; the first spring is positioned between the baffle plate and the partition plate; the second end of the connecting column is connected with the sealing plate; the baffle plate and the sealing plate are both circular plates, and the areas of the baffle plate and the sealing plate are both larger than the area of the oil transportation through hole; the round surfaces of the baffle and the sealing plate are parallel to the round surface of the baffle; when the sealing plate is in contact with the partition plate, the baffle plate is not in contact with the partition plate, and the first spring is in a compressed state;
the iron core pair comprises a first iron core and a second iron core, the first iron core is fixed in the valve port through the second spring, the first end of the second spring is fixedly connected with the valve cover, the second end of the second spring is fixedly connected with the upper end face of the first iron core, and the second iron core is correspondingly fixed on the lower pipe wall of the pipe body; the elastic force direction of the second spring is vertical to the elastic force direction of the first spring; a coil is wound outside the second iron core and is connected with the output end of the control circuit;
the control circuit comprises a power supply and a thermistor, and is conducted when the resistance value of the thermistor is larger than a set resistance value; when the control circuit is not conducted, the first iron core is not contacted with the second iron core; when the control circuit is conducted, the lower end face of the first iron core is attached to the upper end face of the second iron core;
when the oil delivery pipe normally runs, the first spring is in a compressed state, and the sealing plate is in contact with the partition plate; when defeated oil pipe left side pressure is too big, through the compression first spring for the closing plate with the baffle contactless, the oil circuit switches on in the body, realizes the pressure release of oil circuit.
2. The oilfield pipelining safety valve of claim 1, wherein a sum of a height of the first core and a height of the second core is greater than a diameter of the tubular body.
3. The oilfield pipelining safety valve of claim 1, wherein a convex column is fixed at the center of the lower end face of the first iron core, and a groove is fixed at the center of the upper end face of the second iron core; the size of recess with the size matching of projection, work as the lower terminal surface of first iron core with during the up end contact of second iron core, the projection joint in the recess.
4. The oilfield pipelining safety valve of claim 1, further comprising an alarm, wherein a power line of the alarm is connected to a path in the control circuit, and the alarm activates an alarm when the control circuit is turned on.
5. The oilfield pipelaying safety valve of claim 1, wherein the control circuit specifically comprises: the power supply comprises a first power supply, a second power supply, a first path, a second path, a voltage comparator and a triode;
the first channel is connected with a first resistor and a thermistor, the first end of the first channel is connected with the anode of the first power supply, and the second end of the first channel is connected with the cathode of the first power supply; a third resistor and a fourth resistor are connected to the second path, a first end of the second path is connected with the anode of the first power supply, and a second end of the second path is connected with the cathode of the first power supply;
the input end of the voltage comparator is connected with the first path and is connected between the first resistor and the thermistor; the input end of the reference circuit of the voltage comparator is connected with the second path and is connected between the third resistor and the fourth resistor; the output end of the voltage comparator is connected with the base electrode of the triode;
the collector of the triode is connected with the anode of the second power supply; and the emitting electrode of the triode is connected with the first end of the coil, and the second end of the coil is connected with the negative electrode of the second power supply.
6. The oilfield pipework safety valve of claim 1 wherein there is no gap between the circular outer side of the bulkhead and the inner wall of the tubular body.
7. The oilfield pipelining safety valve of claim 1, wherein the valve cap has an internal thread on an inner wall thereof and an external thread on an outer portion of a top end thereof, and the valve cap is connected with the valve port by a thread fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077630.1A CN109595375B (en) | 2019-01-28 | 2019-01-28 | Oil field pipeline transportation safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077630.1A CN109595375B (en) | 2019-01-28 | 2019-01-28 | Oil field pipeline transportation safety valve |
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| CN109595375A CN109595375A (en) | 2019-04-09 |
| CN109595375B true CN109595375B (en) | 2020-10-16 |
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| CN201910077630.1A Active CN109595375B (en) | 2019-01-28 | 2019-01-28 | Oil field pipeline transportation safety valve |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197682A (en) * | 1983-04-22 | 1984-11-09 | Keiichi Yasukawa | Flow classifier valve by temperature |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203730863U (en) * | 2014-03-27 | 2014-07-23 | 宁波路玛电器有限公司 | Hydraulic pipe damping pressure release valve for coffee machine |
| CN204300453U (en) * | 2014-12-12 | 2015-04-29 | 王一鸣 | A kind of automation Oil Safety valve |
| CN204739266U (en) * | 2015-05-29 | 2015-11-04 | 夏步前 | LNG ( liquefied natural gas ) hangs down resistance automatic control check valve device |
| CN205483272U (en) * | 2015-10-09 | 2016-08-17 | 国家电网公司 | Transformer top oil temperature's temperature alarm device |
| CN205896319U (en) * | 2016-08-12 | 2017-01-18 | 江苏省安全生产科学研究院 | Passive quick automatic stop valve |
| CN206159590U (en) * | 2016-08-31 | 2017-05-10 | 刘圆 | Oil relief valve |
| CN107237896B (en) * | 2017-06-28 | 2019-06-04 | 扬中市第一蝶阀厂有限公司 | A kind of Novel regulating valve |
| CN207906528U (en) * | 2017-12-30 | 2018-09-25 | 振石集团东方特钢有限公司 | A kind of through type can shut off the safe hydraulic pressure connection valve of voltage stabilizing |
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2019
- 2019-01-28 CN CN201910077630.1A patent/CN109595375B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59197682A (en) * | 1983-04-22 | 1984-11-09 | Keiichi Yasukawa | Flow classifier valve by temperature |
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Effective date of registration: 20200916 Address after: 224700 Yancheng City Jianhu County, Jiangsu Province Economic Development Zone No. 19 North Star Applicant after: Yancheng Baotong Machinery Technology Co.,Ltd. Address before: Room 401, 3rd Gate, No. 1-29, Marlboro District, Reyuan Street, Saertu District, Daqing City, Heilongjiang Province, 163000 Applicant before: Bian Hongli |
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