CN220017041U - Isolator structure - Google Patents

Abstract

The utility model discloses an isolator structure, which comprises a first main body, a second main body, an isolating diaphragm, a piston plate, a connecting pipeline and a plurality of elastic pieces, wherein the first main body is connected with the second main body; an isolation cavity is formed in the first main body, and a first channel, a second channel and a third channel are respectively formed in the upper part and the lower part of the isolation cavity; the isolation diaphragm is arranged in the isolation cavity; a piston cavity is formed in the second main body, and a fourth channel and an exhaust channel are respectively formed above and below the piston cavity; the piston plate is connected in the piston cavity in a sliding way; the elastic pieces are arranged in the piston cavity; the fourth channel and the exhaust channel are communicated with the piston cavity; two ends of the connecting pipeline are respectively communicated with the second channel and the fourth channel; the first main body is provided with a hydraulic oil filling device. The utility model realizes that the natural gas medium in the gas production pipeline is not directly contacted with the internal structure of the pressure gauge or the pressure sensor, thereby avoiding the formation of ice blockage in the pressure gauge or the pressure sensor and effectively ensuring the acquisition sensitivity of the pressure gauge or the pressure sensor.

Description

Isolator structure

Technical Field

The utility model relates to the technical field of isolators, in particular to an isolator structure.

Background

Natural gas is combustible gas stored in the deep part of the ground, is clean, convenient and efficient fuel, is also an important chemical raw material, and has higher economic value. In the prior art, when natural gas exploitation is performed, a pressure gauge or a pressure sensor is generally required to be installed on a natural gas production line and used for detecting the pressure inside the natural gas production line, so that judgment can be timely made when the pressure is abnormal.

In the prior art, pressure gauges or pressure sensors on a plurality of gas production pipelines are directly arranged outside the gas production pipelines, natural gas media in the gas production pipelines are directly contacted with the internal structures of the pressure gauges or the pressure sensors, ice blockage is easily formed in the pressure gauges or the pressure sensors, and the sensitivity of the acquisition of the pressure gauges or the pressure sensors is affected.

Disclosure of Invention

According to the isolator structure, the technical problems that in the prior art, natural gas media in a gas production pipeline are in direct contact with the internal structure of the pressure gauge or the pressure sensor, ice blockage is easily formed in the pressure gauge or the pressure sensor, and the sensitivity of acquisition of the pressure gauge or the pressure sensor is affected are solved, the fact that the natural gas media in the gas production pipeline are not in direct contact with the internal structure of the pressure gauge or the pressure sensor is avoided, the ice blockage is prevented from being formed in the pressure gauge or the pressure sensor, and the sensitivity of acquisition of the pressure gauge or the pressure sensor is effectively guaranteed.

The utility model provides an isolator structure, which comprises a first main body, a second main body, an isolating diaphragm, a piston plate, a connecting pipeline and a plurality of elastic pieces, wherein the first main body is connected with the piston plate; an isolation cavity is formed in the first main body, and a first channel, a second channel and a third channel are respectively formed above and below the isolation cavity; the isolation diaphragm is arranged in the isolation cavity and can seal and separate the isolation cavity; the first channel and the second channel are both communicated with the isolation cavity, and the first channel is communicated with the third channel; a piston cavity is formed in the second main body, and a fourth channel and an exhaust channel are respectively formed above and below the piston cavity; the piston plate is connected in the piston cavity in a sliding manner along the height direction of the piston cavity; the elastic pieces are arranged in the piston cavity, and the top ends of the elastic pieces are contacted with the bottom surface of the piston plate; the fourth channel and the exhaust channel are communicated with the piston cavity; two ends of the connecting pipeline are respectively communicated with the second channel and the fourth channel; the hydraulic oil filling device is arranged on the first main body, the output end of the hydraulic oil filling device is communicated with the isolation cavity, and hydraulic oil can be filled into the isolation cavity and the second channel.

In one possible implementation, the first body includes a first split and a second split; the first split body is in butt joint with the second split body, and a clamping groove is formed in the position of the butt joint plane of the first split body and the second split body; the two ends of the isolation diaphragm are respectively provided with a clamping block, and the clamping blocks can be clamped with the clamping grooves.

In one possible implementation, the hydraulic oil filling device comprises a needle valve rod, a nozzle, a screw and a protective shell; the top of the first main body is provided with the oil injection nozzle, and an oil injection channel is arranged in the first main body; the valve rod of the oiling needle valve is inserted into the oiling channel and is in sliding connection with the oiling channel, the output end of the oiling channel is communicated with the isolation cavity, and the output end of the oiling nozzle is communicated with the oiling channel; the screw is inserted into the oiling channel and is in threaded connection with the oiling channel, and the end part of the oiling needle valve rod extending out of the oiling channel is inserted into the screw and is fixedly connected with the screw; the protective shell is fixedly connected to the end face of the screw.

In one possible implementation, the isolation diaphragm is configured as a wave-shaped structure.

In one possible implementation, a pipe joint is detachably connected to the third channel, and a plug is detachably connected to the pipe joint.

In one possible implementation, a sealing ring is sleeved on the outer side of the piston plate.

In one possible implementation manner, a plurality of fixing blocks are fixedly connected to the inner side of the piston cavity, and the bottom end of the elastic piece is fixedly connected with the fixing blocks.

In one possible implementation, an exhaust nozzle is detachably connected to the exhaust channel.

In one possible implementation, a pressure detection port is provided on the outside of the connecting line.

One or more technical schemes provided by the utility model have at least the following technical effects or advantages:

according to the pressure sensor, the first main body, the second main body, the isolation diaphragm, the piston plate, the connecting pipeline and the elastic pieces are adopted, the isolation cavity, the first channel, the second channel and the third channel are formed in the first main body, the isolation diaphragm is arranged in the isolation channel and can be sealed and separated, the piston cavity, the fourth channel and the exhaust channel are formed in the second main body, the second channel and the fourth channel are communicated through the connecting pipeline, hydraulic oil can be injected into the isolation cavity, the second channel, the connecting pipeline and the fourth channel through the arranged hydraulic oil filling device, when gas is collected, natural gas is input from the first channel and is output from the third channel, meanwhile, the natural gas can enter the isolation cavity and extrude the isolation diaphragm, due to the effect of the isolation diaphragm, the natural gas is separated from the hydraulic oil, the hydraulic oil in the isolation cavity is extruded from the second channel, the connecting pipeline and the third channel, the hydraulic oil is extruded into the piston cavity through the piston plate, the piston plate is downwards moved and the elastic pieces are extruded through the connecting pipeline, and meanwhile, the pressure sensor can be installed on the connecting pipeline or the pressure sensor is directly or indirectly detected, and the pressure sensor is synchronously detected; the technical problem that natural gas medium in a gas production pipeline is in direct contact with the internal structure of the pressure gauge or the pressure sensor in the prior art and is easy to form ice blockage in the pressure gauge or the pressure sensor to influence the sensitivity of acquisition of the pressure gauge or the pressure sensor is effectively solved, the problem that the natural gas medium in the gas production pipeline is not in direct contact with the internal structure of the pressure gauge or the pressure sensor is solved, the ice blockage is avoided being formed in the pressure gauge or the pressure sensor, and the sensitivity of acquisition of the pressure gauge or the pressure sensor is effectively guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments of the present utility model or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic longitudinal sectional view of an isolator structure according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of area A of FIG. 1;

FIG. 3 is an enlarged view of a portion of region B of FIG. 1;

fig. 4 is a schematic longitudinal sectional view of a piston plate according to an embodiment of the present utility model.

Reference numerals: 1-a first body; 11-isolating the cavity; 12-a first channel; 13-a second channel; 14-a third channel; 141-pipe joint; 142-plugs; 143-a nut; 15-a first split; 151-a clamping groove; 16-a second split; 17-an oiling channel; 2-a second body; 21-a piston chamber; 211-fixing blocks; 22-fourth channel; 23-an exhaust passage; 231-exhaust nozzle; 3-isolating membrane; 31-clamping blocks; 4-a piston plate; 41-sealing rings; 5-connecting pipelines; 51-pressure detection port; 6-elastic members; 7-a hydraulic oil filling device; 71-oiling needle valve stem; 711-O-ring; 72-a grease nipple; 73-screws; 74-protecting shell; 8-a bolt; 9-pressure detecting element.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

Referring to fig. 1 to 3, an isolator structure according to an embodiment of the present utility model includes a first body 1, a second body 2, an isolation diaphragm 3, a piston plate 4, a connecting pipe 5, and a plurality of elastic members 6; an isolation cavity 11 is formed in the first main body 1, and a first channel 12, a second channel 13 and a third channel 14 are respectively formed above and below the isolation cavity 11; the isolation diaphragm 3 is arranged in the isolation cavity 11 and can seal and separate the isolation cavity 11; the first channel 12 and the second channel 13 are both communicated with the isolation cavity 11, and the first channel 12 is communicated with the third channel 14; a piston cavity 21 is formed in the second main body 2, and a fourth channel 22 and an exhaust channel 23 are respectively formed above and below the piston cavity 21; the piston plate 4 is slidably connected in the piston chamber 21 along the height direction of the piston chamber 21; the elastic pieces 6 are arranged in the piston cavity 21, and the top ends of the elastic pieces 6 are contacted with the bottom surface of the piston plate 4; the fourth passage 22 and the exhaust passage 23 are both in communication with the piston chamber 21; both ends of the connecting pipeline 5 are respectively communicated with the second channel 13 and the fourth channel 22; the first main body 1 is provided with a hydraulic oil filling device 7, and the output end of the hydraulic oil filling device 7 is communicated with the isolation cavity 11 and can fill hydraulic oil into the isolation cavity 11 and the second channel 13. In the embodiment of the utility model, the elastic piece 6 is a high-strength spring, the isolation diaphragm 3 separates the isolation cavity 11 into an upper sealing cavity and a lower sealing cavity after being installed, when in actual use, hydraulic oil is injected into the isolation cavity 11, the second channel 13, the connecting pipeline 5 and the fourth channel 22 through the hydraulic oil filling device 7, when gas is extracted, the first channel 12 and the third channel 14 are connected with a natural gas extraction pipeline, so that natural gas is input from the first channel 12 and is output from the third channel 14, meanwhile, natural gas can enter the isolation cavity 11 and squeeze the isolation diaphragm 3, the natural gas is separated from the hydraulic oil through the isolation diaphragm 3, the hydraulic oil is squeezed into the piston cavity 21 through the second channel 13, the connecting pipeline 5 and the third channel 14, and the piston plate 4 is continuously squeezed, and the elastic piece 6 is squeezed, and the piston plate 4 can be kept under the action force of the hydraulic oil and the elastic piece 6, and simultaneously is connected with the pressure sensor 5 or the pressure sensor is directly contacted with the pressure sensor through the pressure sensor, or the pressure sensor is not directly contacted with the pressure sensor when the pressure sensor is detected by the pressure sensor, for example, the pressure sensor is directly detecting the pressure sensor is not contacted with the pressure sensor when the pressure sensor is directly contacted with the pressure sensor.

Referring to fig. 1-2, the first body 1 includes a first split 15 and a second split 16; the first split body 15 is in butt joint with the second split body 16, and a clamping groove 151 is formed in the butt joint plane of the first split body 15 and the second split body 16; the two ends of the isolation diaphragm 3 are respectively provided with a clamping block 31, and the clamping blocks 31 can be clamped with the clamping grooves 151. In the embodiment of the utility model, the first main body 1 is specifically divided into the first split body 15 and the second split body 16, so that the isolation cavity 11 is convenient to process, meanwhile, the isolation diaphragm 3 is convenient to install, the joint grooves 151 are formed in the joint planes of the first split body 15 and the second split body 16, and the joint blocks 31 are respectively arranged at the two ends of the isolation diaphragm 3, so that after the first split body 15 and the second split body 16 are butted and fixed, the joint blocks 31 can be completely compressed through the joint grooves 151, and the isolation diaphragm 3 can be rapidly installed; specifically, the first split body 15 and the second split body 16 are finally fixed into a whole through the bolts 8 after being butted; in addition, the second body 2 may be made into a split structure, so as to facilitate processing of the piston cavity 21 inside the second body 2.

Referring to fig. 2, the hydraulic oil filling device 7 includes an oil filling needle valve stem 71, an oil filling nozzle 72, a screw 73, and a shield shell 74; the top of the first main body 1 is provided with an oiling nozzle 72, and an oiling channel 17 is arranged in the first main body 1; the oil injection needle valve rod 71 is inserted into the oil injection channel 17 and is in sliding connection with the oil injection channel 17, the output end of the oil injection channel 17 is communicated with the isolation cavity 11, and the output end of the oil injection nozzle 72 is communicated with the oil injection channel 17; the screw 73 is inserted into the oiling channel 17 and is in threaded connection with the oiling channel 17, and the end part of the oiling needle valve rod 71 extending out of the oiling channel 17 is inserted into the screw 73 and is fixedly connected with the screw 73; the shield case 74 is fixedly coupled to an end surface of the screw 73. In the embodiment of the utility model, an O-shaped ring 711 is specifically required to be sleeved on the outer side of the oil injection needle valve rod 71, so that the tightness between the oil injection needle valve rod 71 and the oil injection channel 17 is ensured, specifically, when hydraulic oil is required to be injected into the isolation cavity 11, the screw 73 is screwed, the oil injection needle valve rod 71 is driven to move outwards through the screw 73, so that the output end of the oil injection nozzle 72 is communicated with the oil injection channel 17, at the moment, hydraulic oil can be continuously injected into the isolation cavity 11 through the oil injection nozzle 72, after oil injection is completed, the screw 73 is screwed again, the oil injection needle valve rod 71 is driven to move into the oil injection channel 17 through the screw 73, the output end of the oil injection nozzle 72 can be plugged through the oil injection needle valve rod 71, meanwhile, the isolation cavity 11 is not communicated with the oil injection nozzle 72 any more, and the tightness of the isolation cavity 11 is ensured; specifically, the oil injection needle valve stem 71 and the screw 73 may be connected by a key-to-key fit.

Referring to fig. 1, the isolation diaphragm 3 has a wave-shaped structure. In the embodiment of the utility model, the isolation diaphragm 3 is specifically provided with a wave-shaped structure, and the inflection point of the isolation diaphragm 3 adopts arc transition, so that the isolation diaphragm is easy to deform and does not generate large tensile stress.

Referring to fig. 1 and 3, a pipe joint 141 is detachably connected to the third channel 14, and a plug 142 is detachably connected to the pipe joint 141. In the embodiment of the utility model, the pipe joint 141 can be a ferrule type pipe joint, wherein the plug 142 can be directly connected with the inner side of the end part of the pipe joint 141 in a threaded connection manner, or can be spliced in a splicing manner, and when splicing is performed, the nut 143 is needed to be matched for use, and the plug 142 can be extruded into the pipe joint 141 through the threaded connection between the nut 143 and the outer side of the pipe joint 141, so that the plugging is finally realized.

Referring to fig. 4, a sealing ring 41 is fitted over the outer side of the piston plate 4. In the embodiment of the present utility model, a sealing ring 41 is specifically required to be disposed on the outer side of the piston plate 4, so as to ensure the tightness of the piston plate 4 when moving in the piston cavity 21.

Referring to fig. 1, a plurality of fixing blocks 211 are fixedly connected to the inner side of the piston chamber 21, and the bottom end of the elastic member 6 is fixedly connected to the fixing blocks 211. In the embodiment of the utility model, a plurality of fixing blocks 211 are specifically arranged on the inner side of the piston cavity 21 and used for supporting and installing the elastic pieces 6, the number of the fixing blocks 211 is the same as that of the elastic pieces 6, and the fixing blocks are reasonably arranged according to requirements.

Referring to fig. 1, an exhaust nozzle 231 is detachably connected to the exhaust passage 23. In the embodiment of the utility model, the exhaust nozzle 231 is in threaded connection with the output end of the exhaust channel 23, so that the exhaust in the piston cavity 21 is facilitated.

Referring to fig. 1, a pressure detection port 51 is provided on the outside of the connection pipe 5. In the embodiment of the utility model, the pressure detection port 51 is specifically provided, so that the pressure detection element 9, such as a pressure gauge or a pressure sensor, is conveniently installed in the pressure detection port 51, wherein the pressure detection element 9 is connected in the pressure detection port 51 in a threaded connection manner, and pressure detection of hydraulic oil in the connecting pipeline 5 is realized.

The working principle of the isolator structure provided by the embodiment of the utility model is as follows:

in actual operation, the pressure detecting element 9, such as a pressure gauge or a pressure sensor, is firstly installed in the pressure detecting port 51, then the first channel 12 and the third channel 14 are connected with the natural gas production pipeline, so that natural gas is input from the first channel 12 and output from the third channel 14, meanwhile, natural gas enters the isolation cavity 11 and presses the isolation diaphragm 3, further, hydraulic oil in the isolation cavity 11 is pressed through the isolation diaphragm 3, so that the hydraulic oil is pressed into the piston cavity 21 from the second channel 13, the connecting pipeline 5 and the third channel 14, and the piston plate 4 is continuously pressed through the hydraulic oil, so that the piston plate 4 moves downwards and presses the elastic piece 6, the piston plate 4 can be finally balanced under the acting force of the hydraulic oil and the elastic piece 6, at this time, the pressure detecting element 9 is directly contacted with the hydraulic oil in the connecting pipeline 5 and synchronously detects the pressure of the natural gas, and in the pressure detecting process, the pressure gauge or the pressure sensor is not directly contacted with the natural gas, and ice blocking is avoided.

In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment is mainly described as a difference from other embodiments.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (9)

1. An isolator structure is characterized by comprising a first main body (1), a second main body (2), an isolating diaphragm (3), a piston plate (4), a connecting pipeline (5) and a plurality of elastic pieces (6);

an isolation cavity (11) is formed in the first main body (1), and a first channel (12), a second channel (13) and a third channel (14) are respectively formed above and below the isolation cavity (11);

the isolation diaphragm (3) is arranged in the isolation cavity (11) and can seal and separate the isolation cavity (11);

-said first channel (12) and said second channel (13) are both in communication with said isolation chamber (11), and said first channel (12) is in communication with said third channel (14);

a piston cavity (21) is formed in the second main body (2), and a fourth channel (22) and an exhaust channel (23) are respectively formed above and below the piston cavity (21);

the piston plate (4) is slidingly connected in the piston cavity (21) along the height direction of the piston cavity (21);

the elastic pieces (6) are arranged in the piston cavity (21), and the top ends of the elastic pieces (6) are contacted with the bottom surface of the piston plate (4);

-said fourth channel (22) and said exhaust channel (23) are both in communication with said piston chamber (21);

two ends of the connecting pipeline (5) are respectively communicated with the second channel (13) and the fourth channel (22);

the hydraulic oil filling device (7) is arranged on the first main body (1), the output end of the hydraulic oil filling device (7) is communicated with the isolation cavity (11), and hydraulic oil can be filled into the isolation cavity (11) and the second channel (13).

2. The separator structure according to claim 1, characterized in that the first body (1) comprises a first split (15) and a second split (16);

the first split body (15) is in butt joint with the second split body (16), and a clamping groove (151) is formed in the position of a plane where the first split body (15) is in butt joint with the second split body (16);

two ends of the isolation diaphragm (3) are respectively provided with a clamping block (31), and the clamping blocks (31) can be clamped with the clamping grooves (151).

3. The isolator structure according to claim 1, characterized in that the hydraulic oil filling device (7) comprises an oil filling needle valve stem (71), an oil filling nozzle (72), a screw (73) and a protective shell (74);

the top of the first main body (1) is provided with the oiling nozzle (72), and an oiling channel (17) is arranged in the first main body (1);

the oil injection needle valve rod (71) is inserted into the oil injection channel (17) and is in sliding connection with the oil injection channel (17), the output end of the oil injection channel (17) is communicated with the isolation cavity (11), and the output end of the oil injection nozzle (72) is communicated with the oil injection channel (17);

the screw (73) is inserted into the oiling channel (17) and is in threaded connection with the oiling channel (17), and the end part of the oiling needle valve rod (71) extending out of the oiling channel (17) is inserted into the screw (73) and is fixedly connected with the screw (73);

the protective shell (74) is fixedly connected to the end face of the screw (73).

4. The separator structure according to claim 1, characterized in that the structure of the separator membrane (3) is a wave-shaped structure.

5. The isolator structure according to claim 1, characterized in that a pipe joint (141) is detachably connected to the third passage (14), and a plug (142) is detachably connected to the pipe joint (141).

6. The isolator structure according to claim 1, characterized in that the piston plate (4) is provided with a sealing ring (41) on the outside.

7. The isolator structure according to claim 1, wherein a plurality of fixing blocks (211) are fixedly connected to the inner side of the piston chamber (21), and the bottom end of the elastic member (6) is fixedly connected to the fixing blocks (211).

8. The separator structure according to claim 1, characterized in that an exhaust nozzle (231) is detachably connected in the exhaust channel (23).

9. The isolator structure according to claim 1, characterized in that the outside of the connecting pipe (5) is provided with a pressure detection port (51).