CN112213022B - Leak-proof joint of pressure gauge and using method - Google Patents
Leak-proof joint of pressure gauge and using method Download PDFInfo
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- CN112213022B CN112213022B CN201910613097.6A CN201910613097A CN112213022B CN 112213022 B CN112213022 B CN 112213022B CN 201910613097 A CN201910613097 A CN 201910613097A CN 112213022 B CN112213022 B CN 112213022B
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- pressure gauge
- channel
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- leak
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0672—Leakage or rupture protection or detection
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- Examining Or Testing Airtightness (AREA)
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Abstract
The invention provides a pressure gauge leak-proof joint and a using method thereof, the pressure gauge leak-proof joint is used for connecting a pressure gauge to a pipeline to be measured, and the pressure gauge leak-proof joint comprises: the joint body, it is equipped with first circulation passageway to connect this internal one end that is close to the manometer, it is close to this internal one end of pipeline set up with the second circulation passageway of first circulation passageway intercommunication to connect, just be equipped with in the second circulation passageway and be in the shutoff piece that removes in the second circulation passageway, the shutoff piece is used for when the manometer takes place to leak remove first circulation passageway is with first circulation passageway carries out the shutoff. The pressure leakage-proof gauge joint provided by the invention realizes the purpose of automatically plugging the pressure gauge joint when the pressure gauge is damaged or frozen, and solves the technical problems that the existing pressure gauge joint cannot be automatically plugged, and the efficiency of manually closing a pressure gauge control valve to remedy is slow.
Description
Technical Field
The invention relates to the technical field of petroleum equipment, in particular to a leak-proof joint of a pressure gauge and a using method.
Background
The pressure gauge is an important measuring instrument in the safety production of enterprises at present, and the parameters provided by the pressure gauge are important factors directly related to the production safety. In petroleum pipeline transportation, the correct reading of the pressure gauge provides a certain degree of convenience for field station staff.
At present, a pressure gauge is a common pressure reading device in daily production management of an oil field, and is widely applied to various production places in various industries such as oil extraction, operation, hot injection, gathering and transportation and the like. When damage or frost damage appear in the manometer and maintain improper, will cause revealing of medium in the measuring tube way, can make the gauge pressure reduce, the medium will get into the manometer through pressure meter connector to cause the more serious damage of manometer, if this medium is corrosivity or dangerous medium, not only can corrode the manometer, air pollution influences station staff's personal safety moreover. At present, the leakage of media in a measuring pipeline through a pressure meter is prevented by manually closing a pressure meter control valve for remediation, but the efficiency is low, and the leakage of the media in the pipeline often occurs before the pressure meter control valve is closed.
The pressure gauge joint is used for connecting equipment or a pipeline of a measured medium and a pressure gauge, and plays a vital role in the process of measuring the leakage of the pipeline. However, the existing pressure gauge joint is only a single channel, when the pressure gauge is damaged or frozen to cause medium leakage in the measuring pipeline, the pressure gauge joint cannot realize automatic plugging to protect the pressure gauge, so that the medium in the measuring pipeline is leaked to cause environmental pollution and waste due to material loss.
Disclosure of Invention
The invention provides a leak-proof joint of a pressure gauge and a using method thereof, which solve the technical problems that when the pressure gauge is damaged or frozen, the pressure gauge joint cannot be automatically plugged to protect the pressure gauge, so that a medium in a measuring pipeline leaks, the environment pollution is caused, materials run away and are wasted, and the efficiency of manually closing a pressure gauge control valve to remedy is slow.
In a first aspect, an embodiment of the present invention provides a leak-proof joint for a pressure gauge, which is used to connect the pressure gauge to a pipeline to be measured, and includes: connect the body, it is close to connect this internal one end of manometer is equipped with first circulation passageway, it is close to in this internal one end of pipeline set up with the second circulation passageway of first circulation passageway intercommunication, just be equipped with in the second circulation passageway and be in the shutoff piece that removes in the second circulation passageway, the shutoff piece is used for when the manometer takes place to leak remove first circulation passageway is with the shutoff is carried out in the first circulation passageway.
The leak-proof joint for the pressure gauge is optional, and the joint body comprises a first joint body connected with the pressure gauge and a second joint body connected with the pipeline, wherein the first circulation channel is formed in the first joint body, and the second circulation channel is formed in the second joint body.
Optionally, a limiting channel is arranged between the outlet end of the second flow channel and the inlet end of the first flow channel, and the inner wall of the limiting channel is matched with the outer surface of the blocking piece;
wherein the limiting channel is located in the first joint body or in the second joint body.
The leak-proof joint for the pressure gauge is optional, a connecting section is arranged at one end, close to the pipeline, of the second joint body, a third circulation channel is arranged in the connecting section, and a plurality of bearing platforms which are arranged at intervals and are supported by the blocking piece are arranged at the outlet end of the third circulation channel, so that the third circulation channel is communicated with the second circulation channel.
In the leak-proof joint for a pressure gauge as described above, optionally, the width of each of the first flow channel and the third flow channel is smaller than the width of the second flow channel.
The leak-proof joint of the pressure gauge is optional, a drainage channel is further arranged in the second joint body, the inlet end of the drainage channel is communicated with the second circulation channel, the outlet end of the drainage channel is communicated with an assembly channel arranged in the second joint body, the assembly channel is communicated with the second circulation channel, a control piece is further arranged in the assembly channel, and the control piece is used for controlling the opening or closing of the drainage channel.
The leak-proof joint for the pressure gauge is optional, a drainage hole is formed in the control piece, when the control piece rotates in the assembling channel to the position where the drainage hole is communicated with an outlet of the drainage channel, the drainage channel is opened, and when the control piece rotates to the position where the drainage hole is staggered with the outlet of the drainage channel, the drainage channel is closed.
Optionally, the second joint body is further provided with a limiting member, and the limiting member is used for limiting a rotation range of the control member in the assembling channel;
the first connector body and the second connector body are connected through threads, clamping or fastening by fasteners.
In a second aspect, an embodiment of the present invention provides a method for using the leak-proof joint for a pressure gauge as described above, where the method includes:
one end of the leak-proof joint of the pressure gauge is connected with a pipeline, the other end of the leak-proof joint of the pressure gauge is connected with the pressure gauge, and the pressure gauge is used for measuring the pressure in the pipeline, wherein,
when the pressure gauge is normal, a first circulation channel in the leak-proof joint of the pressure gauge is communicated with the second circulation channel so as to enable the medium to be measured in the pipeline to flow to the pressure gauge;
when the pressure gauge leaks, the blocking piece in the second circulation channel moves towards the first circulation channel under the action of pressure in the pipeline and blocks the inlet end of the first circulation channel so as to prevent the medium to be measured in the pipeline from flowing to the pressure gauge.
The use method as described above, optionally, before the pressure gauge detects the pressure in the pipeline, the method further includes:
opening a drainage channel in the leak-proof joint of the pressure gauge;
the pressure gauge detects the pressure in the pipeline, and the pressure gauge comprises:
judging whether the pressure gauge is normally used or not;
when the pressure gauge is normally used, closing the drainage channel, and detecting the pressure in the pipeline by using the pressure gauge;
when the pressure gauge is abnormally used, the drainage channel is continuously kept in an open state until the pressure gauge is normally used.
The invention provides a pressure gauge leak-proof joint and a using method thereof, wherein the pressure gauge leak-proof joint is used for connecting a pressure gauge to a pipeline to be tested and comprises the following components: the anti-leakage joint comprises a joint body, wherein a first circulation channel is arranged at one end, close to the pressure gauge, in the joint body, a second circulation channel communicated with the first circulation channel is arranged at one end, close to the pipeline, in the joint body, a plugging piece capable of moving in the second circulation channel is arranged in the second circulation channel, and the plugging piece is used for moving to the first circulation channel to plug the first circulation channel when the pressure gauge leaks, so that the situation that a medium in the measuring pipeline enters the pressure gauge through the pressure gauge joint when the pressure gauge is damaged or frozen is effectively avoided. Therefore, the leak-proof joint of the pressure gauge provided by the embodiment of the invention realizes the automatic plugging of the pressure gauge joint when the pressure gauge is damaged or frozen, avoids the leakage of a medium in a pipeline through the pressure gauge, the loss of materials and the environmental pollution, and solves the technical problems that the existing pressure gauge joint cannot be automatically plugged and the pressure gauge control valve is manually closed to have low remediation efficiency when the pressure gauge is damaged or frozen.
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 description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a leak-proof joint of a pressure gauge according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a leak-proof joint of a pressure gauge according to a second embodiment of the present invention;
FIG. 3 is a sectional view taken along the line A-A of a leak-proof joint of a pressure gauge according to a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a leak-proof joint of a pressure gauge provided in a third embodiment of the present invention;
FIG. 5 is a right side view of a leak-proof joint of a pressure gauge provided by a third embodiment of the present invention;
fig. 6 is a partially enlarged view of a portion B in fig. 5.
Description of reference numerals:
1: a connector body;
2: a first joint body;
201: a first flow-through channel;
3: a second joint body;
301: a second flow-through channel;
302: a drainage channel;
303: assembly channel
4: a connecting section;
401: a third channel;
5: a blocking member;
6: a limiting channel;
7: a support platform;
8: a control member;
801: a drainage hole;
802: a key slot;
9: a limiting member;
901: a first engaging member;
902: a barrier.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
At present, the existing pressure gauge joint is only a single channel, when a pressure gauge is damaged or frozen to cause medium leakage in a measuring pipeline, the pressure gauge joint cannot protect the pressure gauge, so that the medium in the measuring pipeline is leaked to cause environmental pollution and waste due to material loss. In the prior art, the medium leakage in the pipeline is prevented by manually closing the pressure gauge control valve for remedy, but the efficiency is low, and the medium leakage in the pipeline often occurs due to the fact that the pressure gauge control valve cannot be closed. Therefore, when the pressure gauge is damaged or frozen to cause medium leakage in the measuring pipeline, the medium needs to be blocked before the medium leakage, the medium leakage in the measuring pipeline is avoided, and the medium enters the pressure gauge through the pressure gauge joint, so that the pressure gauge is damaged more seriously. The pressure gauge joint is used for connecting equipment or a pipeline of a measured medium and a pressure gauge, and plays a vital role in the process of measuring the leakage of the pipeline. However, in the prior art, the pressure gauge joint is only a single channel, when the pressure gauge is damaged or frozen to cause medium leakage in the measuring pipeline, the pressure gauge joint cannot realize automatic plugging to protect the pressure gauge, so that the medium in the measuring pipeline is leaked to cause environmental pollution and waste due to material loss. The embodiment of the invention provides a pressure gauge leak-proof joint and a using method thereof, aiming at realizing automatic plugging of a pressure gauge joint when a pressure gauge is damaged or frozen to cause medium leakage in a measuring pipeline.
Example one
FIG. 1 is a schematic structural view of a leak-proof joint of a pressure gauge according to an embodiment of the present invention.
The manometer leak protection that this embodiment provided connects can be used for using the manometer measuring technical field, especially be applicable to the manometer measuring technical field in the oil field, the manometer leak protection that this embodiment provided connects and has realized taking place to damage or freeze when the manometer, the automatic shutoff of manometer joint, avoid the medium in the pipeline to pass through the manometer to reveal, the material runs the purpose of losing and environmental pollution, when having solved among the prior art manometer and taking place to damage or freeze, manometer joint can not automatic shutoff play the guard action to the manometer, and the manual work closes the slow technical problem of manometer control valve remedy efficiency.
As shown in fig. 1, the leak-proof joint for a pressure gauge includes: for connecting a pressure gauge to a pipe under test, comprising: connect body 1, the one end that is close to the manometer in the joint body 1 is equipped with first circulation passageway 201, the one end that is close to the pipeline in the joint body 1 sets up the second circulation passageway 301 with first circulation passageway 201 intercommunication, and is equipped with the shutoff piece 5 that can remove in second circulation passageway 301, shutoff piece 5 is used for removing first circulation passageway 201 department when the manometer takes place to leak and carries out the shutoff with first circulation passageway 201.
In the embodiment, the joint body 1 is an integrated structure, the joint body 1 is communicated with the root of the pressure gauge through a first circulation channel 201, the joint body 1 is communicated with a pipeline to be measured through a second circulation channel 301, in the embodiment, when the pressure gauge normally operates, the root of the pressure gauge is communicated with the pipeline to be measured through the joint body 1, wherein the plugging member 5 is located in the second circulation channel 301, the first circulation channel 201 is communicated with the second circulation channel 301, the pressure in the joint body 1 is balanced, a medium in the pipeline to be measured enters the root of the pressure gauge through the second circulation channel 301 and the first circulation channel 201 in sequence, and at the moment, the pressure gauge measures the pressure in the pipeline to be measured; when the pressure gauge is frozen or damaged, the pipeline is communicated with the outside through the pressure gauge, and because the pressure gauge is frozen or damaged in the initial stage, certain pressure difference exists inside and outside the pipeline, therefore, under the pressure promotion of the medium in the pipeline, the plugging member 5 is rapidly pushed to the joint of the second circulation channel 301 and the first circulation channel 201 to plug the inlet end of the first circulation channel 201, so that automatic plugging is realized, the damage of corrosive medium to the internal elements of the pressure gauge is avoided, and the pressure gauge is protected, so that the medium in the measuring pipeline is leaked, the environmental pollution is caused, and the material is leaked and wasted.
In this embodiment, in order to realize that the blocking member 5 can move in the second flow channel 301, and when the pressure gauge is damaged or frozen to cause the pipeline leakage, the blocking member 5 can move to the first flow channel 201 to block the first flow channel 201, therefore, the opening (i.e. the inlet end of the first flow channel 201) of the first flow channel 201 at the joint with the second flow channel 301 should be covered by the blocking member 5, and the gap between the blocking member 5 and the second flow channel should not be greater than 0.5mm, so as to ensure that the medium has enough thrust to the blocking member 5 to move the blocking member 5 to the inlet end of the first flow channel 201 for automatic blocking.
In this embodiment, the structure of the inlet end of the first circulation channel 201 is not further limited, and the structure of the inlet end of the first circulation channel 201 may be a circular opening, or may also be an oval opening or an opening with another shape, that is, in this embodiment, the inlet end of the first circulation channel 201 includes but is not limited to a circular opening, where in this embodiment, as long as it can be ensured that the pressure gauge is damaged or frozen, the blocking member 5 moves to the inlet end of the first circulation channel 201 under the push of the medium, and can block the inlet end of the first circulation channel 201.
In this embodiment, in order to ensure the plugging effect of the plugging member 5 on the first circulation passage 201, the structure of the plugging member 5 should be adapted to the structure of the inlet end of the first circulation passage 201, and the plugging member 5 includes, but is not limited to, a steel ball, and may also be another structure body made of other high temperature resistant and corrosion resistant materials and adapted to the structure of the inlet end of the first circulation passage 201.
In this embodiment, the connection manner between the connector body 1 and the pressure gauge and the pipeline may be a threaded connection, a snap connection, or another connection manner, which is not further limited in this embodiment.
In this embodiment, the pipeline to be measured may also be a device that needs to use a pressure gauge for pressure measurement.
Therefore, the present embodiment provides a leak-proof joint for a pressure gauge, which is used for connecting the pressure gauge to a pipeline to be measured, and comprises: the joint body 1, the one end that is close to the manometer in the joint body 1 is equipped with first circulation passageway 201, the one end that is close to the pipeline in the joint body 1 sets up the second circulation passageway 301 with first circulation passageway 201 intercommunication, and be equipped with in the second circulation passageway 301 and can move the shutoff piece 5 in the second circulation passageway 301, shutoff piece 5 is used for moving to first circulation passageway 201 department when the manometer leaks in order to carry out the shutoff with first circulation passageway 201, thereby effectually avoid when the manometer takes place to damage or freeze, the medium in the measuring tube way gets into the manometer through the manometer joint, the manometer leak protection joint of the invention can avoid the environmental pollution that the manometer leaked and caused when protecting the manometer, the material runs the waste. Therefore, the leak-proof joint of the pressure gauge provided by the embodiment of the invention realizes the purpose that the pressure gauge joint is automatically plugged when the pressure gauge is damaged or frozen, the medium in a pipeline is prevented from leaking through the pressure gauge, the material is prevented from leaking and the environment is prevented from being polluted, and the technical problems that the existing pressure gauge joint cannot automatically plug to protect the pressure gauge and the pressure gauge control valve is manually closed to cause slow remediation efficiency when the pressure gauge is damaged or frozen are solved.
Example two
Fig. 2 is a schematic structural view of a leak-proof joint of a pressure gauge provided in a second embodiment of the present invention, and fig. 3 is a sectional view of the leak-proof joint of the pressure gauge provided in the second embodiment of the present invention, taken along the direction a-a.
Further, on the basis of the above embodiment, in order to facilitate the processing of the joint body 1, as shown in fig. 1 and fig. 3, in this embodiment, optionally, the joint body 1 includes a first joint body 2 connected to the pressure gauge and a second joint body 3 connected to the pipeline, wherein a first flow passage 201 is formed in the first joint body 2, and a second flow passage 301 is formed in the second joint body 3.
In the embodiment, the length of the joint body 1 is longer than that of a conventional pressure gauge joint, and the first joint body 2 and the second joint body 3 are arranged to reduce the processing difficulty of the joint body 1 in the embodiment of the invention, so that the processing cost of the joint body 1 in the embodiment of the invention is reduced. In this embodiment, when the pressure gauge is connected to a pipeline through the leak-proof joint of the pressure gauge in this embodiment, the first joint body 2 is connected to the root of the pressure gauge, the second joint body 3 is connected to the pipeline, when the pressure gauge normally works, the first circulation channel 201 is communicated with the second circulation channel 301, and a medium in the pipeline sequentially passes through the second circulation channel 301 and the first circulation channel 201 and enters the pressure gauge to fill the pressure gauge and measure the pressure; when the manometer takes place to damage or east ring, when need not artifical manual closing manometer control valve and remedy, shutoff piece 5 removes to the entry end of first circulation passageway 201 and can carry out automatic shutoff to the entry end of first circulation passageway 201 under the promotion of medium in the pipeline to avoid the medium in the pipeline to reveal through the manometer, and then avoid the medium to reveal the material that causes and run away and lose and environmental pollution.
In this embodiment, the first joint body 2 and the second joint body 3 are connected by a thread, a snap, or a fastener, and in this embodiment, the first joint body 2 and the second joint body 3 are preferably connected by a thread.
In this embodiment, as shown in fig. 2 and 3, in order to improve the plugging effect and avoid damage to the plugging member 5 when the plugging member 5 moves to the inlet end of the first flow channel 201 to automatically plug the first flow channel, a limiting channel 6 is arranged between the outlet end of the second flow channel 301 and the inlet end of the first flow channel 201, and the inner wall of the limiting channel 6 is adapted to the outer surface of the plugging member 5;
wherein the limiting channel 6 is located in the first joint body 2 or in the second joint body 3.
In this embodiment, the limiting channel 6 may be located in the first joint body 2 or the second joint body 3, and in this embodiment of the present invention, it is only necessary to ensure that the limiting channel 6 can communicate the first circulation channel 201 and the second circulation channel 301.
Wherein, in this embodiment, the inner wall of spacing passageway 6 can be circular, also can be for oval or other shapes, in this embodiment, does not further limit the inner wall of spacing passageway 6, in this embodiment, only need guarantee that the inner wall of spacing passageway 6 and the surface looks adaptation of shutoff 5 can.
It should be noted that, by the arrangement of the limiting channel 6, when the blocking piece 5 blocks the inlet end of the first flow channel 201, because the inner wall of the limiting channel 6 is matched with the outer surface of the blocking piece 5, at least part of the blocking piece 5 is located in the limiting channel 6 to block the inlet end of the first flow channel 201 until the pressure in the joint body 1 and the pressure in the pipeline are balanced; on the contrary, when the pressure gauge normally works, the second circulation channel 301 is communicated with the first circulation channel 201 through the limiting channel 6, so that the pressure gauge can measure the pressure in the pipeline conveniently.
In this embodiment, in order to facilitate the connection between the second connector body 3 and the pipeline, as shown in fig. 2 and 3, one end of the second connector body 3 close to the pipeline has a connecting section 4, a third flow channel is arranged in the connecting section 4, and an outlet end of the third flow channel is provided with a plurality of supporting platforms 7 which are arranged at intervals and support the plugging member 5, so that the third flow channel is communicated with the second flow channel 301.
In this embodiment, the connection between the connection section 4 and the pipeline may be a threaded connection, a snap connection, a fastener connection, or other connection methods, and in this embodiment, the connection between the connection section 4 and the pipeline is not further limited.
In this embodiment, as shown in fig. 3, the supporting platform 7 may be a cross structure, or may also be a cross-shaped knot or other structure, that is, in this embodiment, the supporting platform 7 includes, but is not limited to, the supporting platform 7 with a cross structure, and in this embodiment, it is only required to ensure that the medium in the pipeline enters the second flow channel 301 through the gap in the supporting platform 7 and plays a certain supporting role on the plugging member 5 without affecting the medium in the pipeline.
In this embodiment, the supporting platform 7 is a supporting structure that is reserved for the second connector body 3 and/or the connecting section 4 during the manufacturing and casting processes and plays a certain supporting role for the blocking piece 5.
In the present embodiment, as shown in fig. 2, in order to allow the blocking piece 5 to move in the second flow channel 301 and block the first flow channel 201, the width of the first flow channel 201 is smaller than the width of the second flow channel 301. Further, in order to avoid the blocking piece 5 from entering the third flow channel, the width of the third flow channel is smaller than the width of the second flow channel 301.
EXAMPLE III
Fig. 4 is a schematic structural view of a leak-proof joint for a pressure gauge provided in a third embodiment of the present invention, fig. 5 is a right side view of the leak-proof joint for the pressure gauge provided in the third embodiment of the present invention, and fig. 6 is a partially enlarged view of a portion B in fig. 5.
Further, on the basis of the above embodiment, in this embodiment, as shown in fig. 4, in order to avoid that the blocking piece 5 blocks the inlet end of the first flow channel 201 at the initial stage of putting the pressure gauge into service due to manual operation, a flow guiding channel 302 is further disposed in the second joint body 3, the inlet end of the flow guiding channel 302 is communicated with the second flow channel 301, the outlet end of the flow guiding channel 302 is communicated with an assembling channel 303 disposed in the second joint body 3, the assembling channel 303 is communicated with the second flow channel 301, a control piece 8 is further disposed in the assembling channel 303, and the control piece 8 is used for controlling the opening or closing of the flow guiding channel 302. In this embodiment, in order to facilitate the control element 8 to control the opening or closing of the drainage channel 302, the control element 8 may be connected with the assembling channel 303 in the assembling channel 303 by a screw thread, or may be connected in other manners, that is, in this embodiment, the connection between the control element 8 and the assembling channel 303 is not limited to the screw thread, and in this embodiment, it is only necessary to ensure that the control element 8 can rotate in the assembling channel 303.
In the present embodiment, the control member 8 is preferably a screw or a bolt.
In this embodiment, as shown in fig. 4, the drainage channel 302 may be a linear channel, or may be a channel with multiple ends connected to each other and having a corner, in this embodiment, the specific structure of the drainage channel 302 is not further limited, as long as it is ensured that the inlet end of the drainage channel 302 is connected to the second flow channel 301, and the outlet end of the drainage channel 302 is connected to the assembly channel 303 provided in the second joint body 3, where it should be noted that the inlet end of the drainage channel 302 is located at the gap of the supporting platform 7.
It should be noted that, in this embodiment, since the required amount for filling the pressure gauge space is small, the flow rate required for starting the pressure gauge is small, when the manual operation is too violent, at the beginning of the commissioning of the pressure gauge, the flow rate of the medium is too large, which may cause the blocking member 5 to block the inlet end of the first flow channel 201 at the beginning of the commissioning of the pressure gauge, so as to block the channel, and the pressure gauge cannot start to be pressurized, in order to avoid or reduce the above situation, through the arrangement of the flow channel 302 in the second connector body 3, at the beginning of the commissioning of the pressure gauge, the flow channel 302 is opened by the control member 8 to drain, so as to relieve the situation that the inlet end of the first flow channel 201 is initially blocked by the blocking member 5 due to the manual operation, at this time, the flow channel 302 is communicated with the second flow channel 301, and the medium in the pipeline sequentially passes through the flow channel 302 and the assembly channel 303, Second circulation passageway 301 gets into the inside drainage that carries on of manometer, because joint body 1 is confined space, consequently, 1 internal pressure of joint body is balanced, the medium will no longer promote the steel ball and remove the entry end to first circulation passageway 201 and carry out the shutoff, the shutoff piece 5 that is promoted to remove in second circulation passageway 301 by the medium resets to the entry end of second circulation passageway 301 under the effect of self gravity, thereby effectively avoid or reduced the above-mentioned when manual operation is violent, probably lead to the shutoff piece 5 to throw the entry end with first circulation passageway 201 at the manometer initial stage and shutoff, the block passage, the emergence of the unable circumstances of pressing of manometer. When the pressure gauge is normally used, the drainage channel 302 is controlled to be closed through the control part 8, so that the pressure gauge can be normally used and protected in the leakage fault. Besides, it should be noted that, in this embodiment, if the second flow channel 301 is long enough, when the manual operation is too violent, the blocking member 5 may block the inlet end of the first flow channel 201 at the initial stage of putting the pressure gauge into service, so as to block the channel, and the occurrence probability of the situation that the pressure gauge cannot start to pressurize is low, and the flow may not be drained through the drainage channel 302.
In this embodiment, as shown in fig. 4, a drainage hole 801 is formed in the control member 8, and when the control member 8 rotates in the assembling channel 303 until the drainage hole 801 communicates with the outlet of the drainage channel 302, the drainage channel 302 is opened, and when the control member 8 rotates until the drainage hole 801 is staggered with the outlet of the drainage channel 302, the drainage channel 302 is closed.
It should be noted that, in this embodiment, the drainage hole 801 is a through hole formed at one end of the control member 8 facing the second flow-through channel 301, and in this embodiment, the communication between the drainage hole 801 and the drainage channel 302 is controlled by controlling the rotation angle of the control member 8 in the assembly channel 303, specifically, when the control member 8 is rotated by 90 degrees in one direction in the assembly channel 303, the drainage hole 801 is communicated with the outlet of the drainage channel 302, and the drainage channel 302 is opened; conversely, when the control member 8 is rotated in the fitting passage 303 in the reverse direction by 90 degrees, the drainage hole 801 is misaligned with the drainage passage 302, and the drainage passage 302 is closed.
In this embodiment, as shown in fig. 6, in order to facilitate the control of the rotation of the control member 8 in the assembling channel 303, a key slot 802 is formed at one end of the control member 8 far away from the second flow channel 301, and when the control member 8 needs to be rotated, a screwdriver or other objects are assembled in the key slot 802 to drive the control member 8 to rotate.
In this embodiment, in order to prevent the control member 8 from excessively rotating in the assembling channel 303, the second joint body 3 is further provided with a limiting member 9, and the limiting member 9 is used for limiting a rotating range of the control member 8 in the assembling channel 303.
In this embodiment, as shown in fig. 5 and fig. 6, the limiting member 9 is disposed at an end portion of the control member 8 on the second joint body 3, the limiting member 9 includes a first engaging member 901 whose inner wall is matched with an outer surface structure of one end of the control member 8 close to the limiting member 9, a blocking member 902 is disposed on a side wall of one end of the control member 8 close to the limiting member 9, when the control member 8 rotates a preset angle in the assembling channel 303 to open the drainage channel 302, the blocking member 902 is blocked by the first engaging member 901 to limit the control member 8 to continue rotating, otherwise, when the control member 8 rotates a preset angle in the assembling channel 303 in a reverse direction to close the drainage channel 302, the blocking member 902 is just located in a second engaging member disposed on the second joint body 3 to limit the control member 8 to continue rotating, wherein an inner wall structure of the second engaging member is matched with an outer surface structure of the blocking member 902.
In this embodiment, as shown in fig. 6, a slot adapted to the end structure of the control member 8 is provided in the first engaging member 901, and the blocking member 902 may have a circular structure, an elliptical structure, or other structures.
Example four
Further, on the basis of the above embodiment, the embodiment of the present invention provides a method for using a leak-proof joint of a pressure gauge, the method comprising:
one end of a leak-proof joint of the pressure gauge is connected with the pipeline, the other end of the leak-proof joint of the pressure gauge is connected with the pressure gauge, and the pressure gauge is used for measuring the pressure in the pipeline, wherein,
when the pressure gauge is normal, a first circulation channel 201 in the leak-proof joint of the pressure gauge is communicated with a second circulation channel 301, so that a medium to be measured in a pipeline flows to the pressure gauge;
when the pressure gauge leaks, the blocking piece 5 in the second flow channel 301 moves toward the first flow channel 201 under the action of the pressure in the pipeline and blocks the inlet end of the first flow channel 201, so as to prevent the medium to be measured in the pipeline from flowing to the pressure gauge.
It should be noted that, when the manometer leaked, the pipeline communicated with the outside through the manometer, because the manometer took place to freeze or damage the initial stage, there was certain pressure difference inside and outside the pipeline, therefore, under the pressure promotion of the medium in the pipeline, shutoff piece 5 was promoted fast to the link department of second circulation passageway 301 and first circulation passageway 201 and was carried out the shutoff with the entry end of first circulation passageway 201, realize automatic shutoff, avoid corrosive medium to cause the damage to the internal component of manometer, thereby play the guard action to the manometer, so that the medium in the measuring pipeline reveals, cause environmental pollution, the material runs away and loses extravagantly.
Wherein, in this embodiment, in order to avoid when the manual operation is too violent, probably can lead to shutoff piece 5 just to carry out the shutoff with the entry end of first circulation passageway 201 at the initial stage that the manometer was commissioned, block the passageway, the emergence of the unable circumstances of raising a pressure of manometer, before the manometer detects the pressure in to the pipeline, still include:
opening a drainage channel 302 in the leak-proof joint of the pressure gauge for balancing the internal and external pressure difference and preventing the inlet end of the first circulation channel 201 from being blocked by the blocking piece 5;
the pressure gauge detects the pressure in the pipeline, includes:
judging whether the pressure gauge is normally used or not;
when the pressure gauge is normally used, the drainage channel 302 is closed, and the pressure gauge is used for detecting the pressure in the pipeline;
when the pressure gauge is abnormally used, the drainage channel 302 is continuously kept in the open state until the pressure gauge is normally used.
Therefore, the leak-proof joint of the pressure gauge completely solves the problem of leakage when the pressure gauge is damaged, realizes automatic plugging and remediation without manual operation, and avoids material loss and environmental pollution when the pressure gauge is in fault and leaks.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; either directly or indirectly through intervening media, such as through internal communication or through an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A leak-proof joint for a pressure gauge, for connecting the pressure gauge to a pipe to be tested, comprising: the pressure gauge comprises a connector body, wherein a first circulation channel is arranged at one end, close to the pressure gauge, in the connector body, a second circulation channel communicated with the first circulation channel is arranged at one end, close to the pipeline, in the connector body, a plugging piece capable of moving in the second circulation channel is arranged in the second circulation channel, and the plugging piece is used for moving to the first circulation channel to plug the first circulation channel when the pressure gauge leaks;
the joint body comprises a first joint body connected with the pressure gauge and a second joint body connected with the pipeline, wherein the first circulation channel is arranged in the first joint body, and the second circulation channel is arranged in the second joint body;
a drainage channel is further arranged in the second connector body, and the inlet end of the drainage channel is communicated with the second circulation channel; the outlet end of the drainage channel is communicated with an assembly channel arranged in the second joint body, the assembly channel is communicated with the second drainage channel, and a control part is also arranged in the assembly channel and used for controlling the opening or closing of the drainage channel;
one end, close to the pipeline, of the second joint body is provided with a connecting section, a third circulation channel is arranged in the connecting section, and the outlet end of the third circulation channel is provided with a plurality of supporting platforms which are arranged at intervals and support the blocking piece, so that the third circulation channel is communicated with the second circulation channel;
a gap between the blocking piece and the second flow channel is not more than 0.5 mm; the drainage channel is a linear channel, the bearing platform is of a cross structure, and the inlet end of the drainage channel is located in the gap of the bearing platform.
2. The leak-proof joint of the pressure gauge according to claim 1, wherein a limiting channel is arranged between the outlet end of the second flow channel and the inlet end of the first flow channel, and the inner wall of the limiting channel is matched with the outer surface of the blocking piece;
wherein the limiting channel is located in the first joint body or in the second joint body.
3. A leak-proof tap for a pressure gauge as claimed in claim 2, wherein the first flow channel and the third flow channel each have a width smaller than the width of the second flow channel.
4. The leak-proof pressure gauge connector of claim 3, wherein a drainage hole is formed in the control member, and the drainage channel is opened when the control member is rotated in the fitting channel until the drainage hole communicates with the outlet of the drainage channel, and is closed when the control member is rotated until the drainage hole is misaligned with the outlet of the drainage channel.
5. The leak-proof pressure gauge joint as defined in claim 4, further comprising a stopper disposed on the second joint body for limiting the rotation range of the control member in the assembling passage;
the first connector body and the second connector body are connected through threads, clamping or fastening by fasteners.
6. A method of using the leak proof joint of a pressure gauge as claimed in any one of claims 1 to 5, wherein the method of using comprises:
one end of the leak-proof joint of the pressure gauge is connected with a pipeline, the other end of the leak-proof joint of the pressure gauge is connected with the pressure gauge, and the pressure gauge is used for measuring the pressure in the pipeline, wherein,
when the pressure gauge is normal, a first circulation channel in the leak-proof joint of the pressure gauge is communicated with the second circulation channel so as to enable the medium to be measured in the pipeline to flow to the pressure gauge;
when the pressure gauge leaks, the blocking piece in the second circulation channel moves towards the first circulation channel under the action of pressure in the pipeline and blocks the inlet end of the first circulation channel so as to prevent the medium to be measured in the pipeline from flowing to the pressure gauge.
7. The use method according to claim 6, wherein the pressure gauge detects the pressure in the pipeline, and further comprises:
opening a drainage channel in the leak-proof joint of the pressure gauge;
the pressure gauge detects the pressure in the pipeline, and comprises:
judging whether the pressure gauge is normally used or not;
when the pressure gauge is normally used, the drainage channel is closed, and the pressure gauge is used for detecting the pressure in the pipeline;
when the pressure gauge is abnormally used, the drainage channel is continuously kept in an open state until the pressure gauge is normally used.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910613097.6A CN112213022B (en) | 2019-07-09 | 2019-07-09 | Leak-proof joint of pressure gauge and using method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910613097.6A CN112213022B (en) | 2019-07-09 | 2019-07-09 | Leak-proof joint of pressure gauge and using method |
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| CN112213022B true CN112213022B (en) | 2022-08-30 |
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| CN101059181A (en) * | 2007-03-21 | 2007-10-24 | 康平原 | Automatic-diversion closure safety valve |
| CN203241189U (en) * | 2013-05-17 | 2013-10-16 | 窦永 | Environmentally-friendly pressure gauge joint |
| CN204807271U (en) * | 2015-04-30 | 2015-11-25 | 史玉林 | Manometer leaks automatic protection device that becomes dry |
| CN109115397A (en) * | 2017-06-26 | 2019-01-01 | 淮安市冰青建设工程管理有限公司 | Pressure gauge explosion-proof leakage-proof quick breaker |
| TWM556129U (en) * | 2017-11-13 | 2018-03-01 | I Laic Ltd | Drip brewing kettle |
| CN210136019U (en) * | 2019-07-09 | 2020-03-10 | 中国石油天然气股份有限公司 | Leak-proof joint of pressure gauge |
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