Shale gas wellhead instrument air pressure stabilizing device

Abstract

The utility model relates to the field of shale gas exploitation equipment, and discloses a shale gas wellhead instrument air pressure stabilizing device which comprises a pressure stabilizing pipeline arranged at a shale gas wellhead, and a pressure stabilizing mechanism arranged on the pressure stabilizing pipeline. The pressure stabilizing mechanism comprises an instrument air inlet pipeline, a partition plate, a buffering air channel, an instrument air outlet pipeline, a pressure sensor, a controller, an electromagnetic control valve and a filtering switching assembly. The instrument air inlet pipeline and the instrument air outlet pipeline are fixedly installed at the bottom and the top of the pressure stabilizing pipeline respectively, the partition plate is fixedly installed in the pressure stabilizing pipeline, the buffer air channel is formed in the partition plate, the pressure sensor is fixedly installed on the instrument air outlet pipeline, and the controller is fixedly installed on the pressure stabilizing pipeline. The device has the following advantages and effects that the instrument air pressure in the instrument air outlet pipeline is stabilized in a preset range, and the change of the working condition of a shale gas exploitation site can be quickly responded.

Description

Technical Field

[0001] This utility model relates to the technical field of shale gas extraction equipment, and in particular to a shale gas wellhead instrument air pressure stabilizing device. Background Technology

[0002] During shale gas extraction, various instruments at the wellhead require stable instrument airflow to ensure their normal operation. The stability of the instrument air pressure directly affects the accuracy of instrument measurements and the reliability of equipment control.

[0003] Currently, existing shale gas wellhead instrument air supply systems suffer from significant pressure fluctuations. On one hand, the operating conditions at shale gas extraction sites are complex and variable; changes in well production and equipment start-up and shutdown can alter instrument air demand, leading to pressure fluctuations. On the other hand, traditional pressure stabilization devices have simple structures and limited adjustment capabilities, making it difficult to quickly and effectively respond to these pressure changes and maintain stable instrument air pressure. This instability in instrument air pressure has numerous adverse effects. For example, it can increase instrument measurement errors, making it difficult for operators to accurately obtain wellhead parameters and affecting their assessment of well production status; it can also cause equipment control malfunctions, increasing safety hazards and even disrupting the entire shale gas extraction operation. Therefore, it is necessary to design a shale gas wellhead instrument air pressure stabilization device to address these problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a shale gas wellhead instrument air pressure stabilizing device to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a shale gas wellhead instrument air pressure stabilizing device, comprising:

[0007] A pressure-stabilizing pipeline is installed at the shale gas wellhead, and a pressure-stabilizing mechanism is provided on the pressure-stabilizing pipeline;

[0008] The pressure stabilizing mechanism includes an instrument air inlet duct, a baffle plate, a buffer duct, an instrument air outlet duct, a pressure sensor, a controller, an electromagnetic control valve, and a filter switching assembly.

[0009] The instrument air inlet pipeline and the instrument air outlet pipeline are fixedly installed at the bottom and the top of the stabilizing pipeline respectively, the partition plate is fixedly installed in the stabilizing pipeline, the buffer air duct is arranged on the partition plate, the pressure sensor is fixedly installed on the instrument air outlet pipeline, the controller is fixedly installed on the stabilizing pipeline, and the electromagnetic control valve is installed on the instrument air inlet pipeline.

[0010] The further setting of the utility model is that: the filter switching assembly includes filter round frame, filter screen, mounting support, arc shell, pivot, connecting rod, counterweight sleeve plate and positioning rod, the filter screen is fixedly installed in the filter round frame, the mounting support is fixedly installed on the stabilizing pipeline through screw, the mounting support bottom is fixedly connected with the arc shell, the pivot is rotatably installed on the mounting support and the arc shell, the connecting rod is fixedly installed between the filter round frame and the pivot, the counterweight sleeve plate is fixedly connected with the positioning rod, and the positioning rod is clamped with a connecting rod.

[0011] The further setting of the utility model is that: the pressure sensor and the electromagnetic control valve are electrically connected with the controller.

[0012] By adopting the above technical scheme, the stabilizing control is facilitated.

[0013] The further setting of the utility model is that: the number of filter round frames is multiple, one filter round frame top is in sealed contact with the instrument air inlet pipeline, the instrument air inlet pipeline bottom is embedded with sealing washer, and the filter round frame is in sealed contact with the instrument air inlet pipeline through the sealing washer.

[0014] The further setting of the utility model is that: the connecting rod is provided with positioning slot, and the positioning rod is clamped with a positioning slot.

[0015] By adopting the above technical scheme, the connecting rod is limited.

[0016] The further setting of the utility model is that: the counterweight sleeve plate is slidably sleeved on the outside of the mounting support.

[0017] By adopting the above technical scheme, the counterweight sleeve plate is guided.

[0018] The further setting of the utility model is that: the arc shell top is provided with sliding hole, and the positioning rod is slidably installed in the sliding hole.

[0019] The further setting of the utility model is that: the top and the bottom of the filter round frame in the arc shell are in contact with the arc shell inner wall.

[0020] The utility model has the advantages of:

[0021] The utility model discloses a pressure stabilizing mechanism is set up, can effectively buffer and disperse pressure, reduce pressure fluctuation, simultaneously, the feedback regulation system that pressure sensor, controller and solenoid control valve constitute can monitor and adjust pressure in real time, ensure that the instrument air pressure in the instrument air outlet pipeline is stable in the preset range, can respond to the change of shale gas exploitation field condition, such as the change of gas well production, equipment start and stop etc. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the drawing used in the embodiment description briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0023] Figure 1 It is the structure schematic diagram of a shale gas wellhead instrument air pressure stabilizing device proposed in the utility model.

[0024] Figure 2 It is the sectional structure schematic diagram of a shale gas wellhead instrument air pressure stabilizing device proposed in the utility model.

[0025] Figure 3 It is Figure 1 A part structure schematic diagram in.

[0026] Figure 4 It is Figure 1 B part structure schematic diagram in.

[0027] In the drawing, 1, pressure pipeline, 2, instrument air inlet pipeline, 3, partition, 4, buffer air duct, 5, instrument air outlet pipeline, 6, pressure sensor, 7, controller, 8, solenoid control valve, 9, filter round frame, 10, filter screen, 11, mounting bracket, 12, arc shell, 13, pivot, 14, connecting rod, 15, counterweight cover plate, 16, positioning rod, 17, positioning groove. DETAILED DESCRIPTION

[0028] In the description of the utility model, it is necessary to explain, except for the explicit provision and limitation, the term "installation", "link", "connection" should be broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the intercommunication of two elements, for ordinary skilled person in the art, can understand the concrete meaning of the above-mentioned term in the utility model through specific circumstances.

[0029] The technical solutions of the utility model will be described clearly and completely in connection with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the utility model provides a shale gas well head instrument wind pressure stabilizing device, include:

[0031] The pressure stabilizing pipeline 1 is arranged at the shale gas well head, and the pressure stabilizing mechanism is arranged on the pressure stabilizing pipeline 1, it needs to be explained that, through the pressure stabilizing mechanism arranged, effectively buffer and disperse pressure, reduce pressure fluctuation, simultaneously, the feedback adjusting system that pressure sensor 6, controller 7 and solenoid control valve 8 are formed can real -time monitoring and adjusting pressure, ensure that the instrument wind pressure in instrument wind outlet pipeline 5 is stable in the preset range;

[0032] The pressure stabilizing mechanism includes instrument wind inlet pipeline 2, baffle 3, buffer air duct 4, instrument wind outlet pipeline 5, pressure sensor 6, controller 7, solenoid control valve 8 and filter switching assembly;

[0033] Instrument wind inlet pipeline 2 and instrument wind outlet pipeline 5 are fixedly installed at the bottom and top of pressure stabilizing pipeline 1 respectively, baffle 3 is fixedly installed in the inside of pressure stabilizing pipeline 1, buffer air duct 4 is opened on baffle 3, it needs to be explained that, the number of baffle 3 is multiple, as shown in Figure 2 Buffer air duct 4 is staggered in sequence, effectively buffer and disperse pressure, reduce pressure fluctuation;

[0034] Pressure sensor 6 is fixedly installed on instrument wind outlet pipeline 5, it needs to be explained that, pressure sensor 6 can also be set up multiple, and be installed on instrument wind outlet pipeline 5 at equal intervals, this mode can improve monitoring accuracy, and can be selected according to different needs;

[0035] Controller 7 is fixedly installed on pressure stabilizing pipeline 1, and solenoid control valve 8 is installed on instrument wind inlet pipeline 2.

[0036] Through the above-mentioned pressure stabilizing mechanism, the bottom of the filter round frame 9 is sealed and abuts against the instrument air supply pipeline of the shale gas wellhead, the instrument air after filtration enters into the pressure stabilizing pipeline 1 through the instrument air inlet pipeline 2, and flows between the buffer air ducts 4 on the multiple baffles 3, buffers and disperses the pressure, reduces the pressure fluctuation, the pressure sensor 6 monitors the instrument air pressure in the instrument air outlet pipeline 5 in real time, and transmits the pressure signal to the controller 7, the controller 7 compares the received pressure signal with the preset pressure value, if the monitored pressure value is higher than the preset pressure value, the controller 7 sends a control signal to make the electromagnetic control valve 8 reduce the opening degree, so as to reduce the amount of instrument air entering the pressure stabilizing pipeline 1, thereby reducing the pressure, if the monitored pressure value is lower than the preset pressure value, the controller 7 sends a control signal to make the electromagnetic control valve 8 increase the opening degree, so as to increase the amount of instrument air entering the pressure stabilizing pipeline 1, so as to increase the pressure, so as to maintain the stability of the instrument air pressure in the instrument air outlet pipeline 5, and then the instrument air after pressure stabilization is transported to the wellhead instrument through the instrument air outlet pipeline 5.

[0037] Specifically, the filter switching assembly includes a filter round frame 9, a filter screen 10, a mounting bracket 11, an arc-shaped shell 12, a rotating shaft 13, a connecting rod 14, a counterweight sleeve plate 15 and a positioning rod 16, the filter screen 10 is fixedly installed in the filter round frame 9, the mounting bracket 11 is fixedly installed on the pressure stabilizing pipeline 1 by screws, the bottom of the mounting bracket 11 is fixedly connected with the arc-shaped shell 12, the rotating shaft 13 is rotatably installed on the mounting bracket 11 and the arc-shaped shell 12, the connecting rod 14 is fixedly installed between the filter round frame 9 and the rotating shaft 13, it should be noted that the number of filter round frames 9 is four, and the four filter round frames 9 are arranged at equal intervals, the counterweight sleeve plate 15 is fixedly connected with the positioning rod 16, and the positioning rod 16 is clamped with one connecting rod 14.

[0038] Through the above-mentioned filter switching assembly, the imported instrument air can be filtered by the filter screen 10, when the filter screen 10 is seriously contaminated, the counterweight sleeve plate 15 can be pulled to make the positioning rod 16 move out of a positioning groove 17, then the rotating shaft 13 is rotated to make the filter screen 10 on another filter round frame 9 cooperate with the instrument air inlet pipeline 2, then the counterweight sleeve plate 15 is released, the counterweight sleeve plate 15 moves downward due to its own gravity, so that the positioning rod 16 is clamped into a positioning groove 17, and in the later period, the mounting bracket 11 can be disassembled as a whole, and then cleaning and maintenance can be performed, which is convenient to use.

[0039] Specifically, the pressure sensor 6 and the electromagnetic control valve 8 are electrically connected with the controller 7, it should be noted that the pressure stabilizing control process is performed in this way.

[0040] Specific, the number of filter round frame 9 is multiple, and one filter round frame 9 top and instrument air inlet pipe 2 sealing contact, instrument air inlet pipe 2 bottom embedded with sealing washer, filter round frame 9 through sealing washer and instrument air inlet pipe 2 sealing contact, need to explain, can guarantee the sealing of contact position.

[0041] Specific, the connecting rod 14 is provided with a positioning groove 17, and the positioning rod 16 is clamped with one positioning groove 17, and the connecting rod 14 is limited.

[0042] Specific, the counterweight sleeve plate 15 is slidably sleeved outside the mounting bracket 11, the arc-shaped shell 12 is provided with a sliding hole at the top, and the positioning rod 16 is slidably installed in the sliding hole.

[0043] Working principle:

[0044] S1: the pressure sensor 6 is installed on the instrument air outlet pipe 5, and the pressure of the instrument air is monitored in real time. When the shale gas wellhead instrument air enters the stable pressure pipeline 1 through the instrument air inlet pipe 2, the pressure is buffered and dispersed through the buffer air duct 4 on the internal partition plate 3, and finally flows out from the instrument air outlet pipe 5 to supply the wellhead instrument. In this process, the pressure sensor 6 continuously senses the pressure value in the instrument air outlet pipe 5, and transmits the pressure signal to the controller 7. The instrument air is filtered and enters the stable pressure pipeline 1 through the instrument air inlet pipe 2, and flows between the buffer air duct 4 on the multiple partition plates 3, buffers and disperses the pressure, and reduces the pressure fluctuation;

[0045] S2: the controller 7 receives the pressure signal transmitted by the pressure sensor 6, and compares it with the pre-set pressure value range. If the monitored pressure value is higher than the pre-set pressure upper limit, the controller 7 will send a control signal. If the monitored pressure value is lower than the pre-set pressure lower limit, the controller 7 will also send a control signal. The electromagnetic control valve 8 is installed on the instrument air inlet pipe 2 and is electrically connected with the controller 7. When the controller 7 judges that the pressure is higher than the pre-set value, it sends a signal to make the electromagnetic control valve 8 reduce the opening degree, reduces the amount of instrument air entering the stable pressure pipeline 1, so as to reduce the pressure in the instrument air outlet pipe 5. When the controller 7 judges that the pressure is lower than the pre-set value, it sends a signal to make the electromagnetic control valve 8 increase the opening degree, increases the amount of instrument air entering the stable pressure pipeline 1, so as to increase the pressure in the instrument air outlet pipe 5. Through such feedback regulation mechanism, the pressure of the instrument air in the instrument air outlet pipe 5 is ensured to be stable in the pre-set range;

[0046] S3: in the normal working state, the filter screen 10 in the filter round frame 9 in sealing contact with the instrument air inlet pipeline 2 filters the instrument air entering from the shale gas wellhead, removes the impurities therein, ensures that the instrument air entering the pressure stabilizing pipeline 1 is relatively clean, avoids that the impurities cause damage to the internal components of the device and affect the normal operation of the instrument, along with the increase of the use time, the filter screen 10 will gradually accumulate dirt, when the dirt seriously affects the filtering effect, the filter screen 10 needs to be switched, at this time, the operator pulls the counterweight cover plate 15, the counterweight cover plate 15 drives the positioning rod 16 fixedly connected therewith, the positioning rod 16 is moved out of the positioning groove 17 on the current clamped connecting rod 14, then the rotating shaft 13 is rotated, since the connecting rod 14 is fixedly installed between the filter round frame 9 and the rotating shaft 13, the rotating shaft 13 is rotated to drive the filter round frame 9 to rotate, the filter screen 10 on the other filter round frame 9 is rotated to the position in sealing contact with the instrument air inlet pipeline 2, the switching of the filter screen 10 is realized;

[0047] S4: after the switching is completed, the counterweight cover plate 15 is released, the counterweight cover plate 15 slides downward along the outer side of the mounting bracket 11 due to the gravity thereof, the positioning rod 16 moves vertically in the sliding hole at the top of the arc-shaped shell 12 and is clamped into the positioning groove 17 on the new connecting rod 14, the new filter round frame 9 is limited and fixed, in the later period, the mounting bracket 11 can be integrally disassembled, the dirty filter screen 10 is cleaned and maintained, so as to be used next time.

[0048] The shale gas wellhead instrument air pressure stabilizing device is described in detail. The principle and implementation mode of the utility model are described by applying the specific embodiments, and the above embodiment is only used for helping to understand the method and the core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, the utility model can be improved and modified on the premise of not departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A shale gas wellhead instrument air pressure stabilizing device, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly.

2. The shale gas wellhead instrument wind stabilizing pressure device according to claim 1, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly.

3. The shale gas wellhead instrument wind stabilizing pressure device according to claim 1, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly.

4. The shale gas wellhead instrument wind stabilizing pressure device according to claim 2, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly.

5. The shale gas wellhead instrument wind stabilizing pressure device according to claim 2, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly.

6. The shale gas wellhead instrument wind stabilizing pressure device according to claim 2, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly.

7. The shale gas wellhead instrument wind stabilizing pressure device according to claim 2, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly.

8. The shale gas wellhead instrument wind stabilizing pressure device according to claim 2, characterized in that, The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The utility model relates to a shale gas wellhead pressure stabilizing pipeline (1) is provided with pressure stabilizing mechanism on the shale gas wellhead pressure stabilizing pipeline (1), and the pressure stabilizing mechanism includes instrument air inlet pipeline (2), baffle (3), buffer air duct (4), instrument air outlet pipeline (5), pressure sensor (6), controller (7), electromagnetic control valve (8) and filter switching assembly. The

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