Driller's control console, air source conversion manifold and gas supply system

Abstract

The present invention provides a driller's control console, an air source conversion manifold and a gas supply system. The driller's control console includes a driller's control manifold, a first air source, a second air source and an air source conversion manifold. The air source conversion manifold includes a first pipeline, a second pipeline and a third pipeline; the first air source is connected to the first end of the first pipeline, and the second end of the first pipeline is connected to the air inlet end of the driller's control manifold; the second air source is connected to the first end of the second pipeline, and the second end of the second pipeline is connected to the air inlet end of the driller's control manifold; an air-controlled reversing valve for controlling the on-off of the second pipeline is provided on the second pipeline; the first end of the third pipeline is connected to the first air source, and the second end of the third pipeline is connected to the valve position control port of the air-controlled reversing valve. Through the present invention, the reliability of the operation of the driller's control console in the blowout preventer control device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas drilling equipment, and particularly relates to a driller's control console, a gas source conversion manifold, and a gas supply system. Background Art

[0002] The opening and closing actions of the blowout preventer during drilling operations are controlled by a blowout preventer control device; under the control of the blowout preventer control device, the blowout preventer realizes controlling and preventing well kicks and blowouts, and ensuring drilling safety. The blowout preventer control device is a key piece of equipment in drilling operations.

[0003] The pneumatically controlled blowout preventer control device is a relatively widely used blowout preventer control device. The pneumatically controlled blowout preventer control device is usually equipped with a driller's control console and a remote control console. By operating the air conversion valve handle on the driller's control console, compressed air can enter the cylinder on the remote control console through the air conversion valve, and then push the rotary valve on the remote control console to perform a commutation operation to control the opening and closing of the blowout preventer. When an emergency occurs at the site and it is necessary to close the blowout preventer, if the rotary valve of the blowout preventer control device fails to be turned in time, the blowout preventer cannot be closed, and in severe cases, a blowout accident will occur, causing incalculable losses. At the well site, the reliability of the driller's control console operation is poor, and when it is necessary to close the blowout preventer, it is easy to occur that the driller's control console fails to control the rotary valve on the remote control console to perform a commutation operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a driller's control console, a gas source conversion manifold, and a gas supply system to improve the reliability of the driller's control console operation in the blowout preventer control device.

[0005] The above object of the present invention can be achieved by the following technical solutions:

[0006] The present invention provides a driller's control console, including:

[0007] A driller's control manifold;

[0008] A first gas source;

[0009] A second gas source;

[0010] A gas source conversion manifold, the gas source conversion manifold including a first pipeline, a second pipeline, and a third pipeline;

[0011] The first gas source is connected to the first end of the first pipeline, the second end of the first pipeline is connected to the intake end of the driller's control manifold, and the first gas source can supply gas to the driller's control manifold through the first pipeline;

[0012] The second gas source is connected to the first end of the second pipeline, and the second end of the second pipeline is connected to the air inlet end of the driller control manifold. The second gas source can supply gas to the driller control manifold through the second pipeline;

[0013] An air-controlled reversing valve for controlling the on / off of the second pipeline is provided on the second pipeline. When compressed air enters the valve position control port of the air-controlled reversing valve, the air-controlled reversing valve can be switched to an open circuit state; when compressed air does not enter the valve position control port of the air-controlled reversing valve, the air-controlled reversing valve can be switched to a connected state;

[0014] The first end of the third pipeline is connected to the first gas source, and the second end of the third pipeline is connected to the valve position control port.

[0015] In a preferred embodiment, an exhaust valve is provided on the third pipeline. The exhaust valve has an air inlet, a first air outlet, and a second air outlet. The air inlet and the first air outlet are connected to the third pipeline. The air inlet is close to the first end of the third pipeline, and the first air outlet is close to the second end of the third pipeline; when gas is introduced into the air inlet, the air inlet is communicated with the first air outlet; when gas is not introduced into the air inlet, the first air outlet is communicated with the second air outlet.

[0016] In a preferred embodiment, a muffler is connected to the second air outlet.

[0017] In a preferred embodiment, a first interface, a second interface, and a first one-way valve are provided on the first pipeline. The first interface, the first one-way valve, and the second interface are distributed in sequence along the direction from the first end to the second end of the first pipeline. The first one-way valve allows the gas in the first pipeline to flow from the first interface to the second interface; the first end of the third pipeline is connected to the first interface, and the second end of the second pipeline is connected to the second interface.

[0018] In a preferred embodiment, a second one-way valve is provided on the second pipeline. The second one-way valve is arranged between the second interface and the air-controlled reversing valve. The second one-way valve allows the gas in the second pipeline to flow from the air-controlled reversing valve to the second interface.

[0019] In a preferred embodiment, the air-controlled reversing valve is a two-position three-way single-air-controlled reversing valve.

[0020] In a preferred embodiment, a first ball valve is connected to the first end of the first pipeline, and a second ball valve is connected to the first end of the second pipeline.

[0021] The present invention provides a gas source conversion manifold, including:

[0022] The first pipeline, the first end of the first pipeline is used to connect with the first gas source, the second end of the first pipeline is used to connect with the inlet end of the pneumatic control manifold, and the first gas source can supply gas to the pneumatic control manifold through the first pipeline;

[0023] The second pipeline, the first end of the second pipeline is used to connect with the second gas source, the second end of the second pipeline is used to connect with the inlet end of the pneumatic control manifold, and the second gas source can supply gas to the pneumatic control manifold through the second pipeline; A pneumatic reversing valve for controlling the on-off of the second pipeline is provided on the second pipeline. When compressed air enters the valve position control port of the pneumatic reversing valve, the pneumatic reversing valve can be switched to an open-circuit state; when compressed air does not enter the valve position control port of the pneumatic reversing valve, the pneumatic reversing valve can be switched to a connected state;

[0024] The third pipeline, the first end of the third pipeline is used to connect with the first gas source, and the second end of the third pipeline is connected with the valve position control port.

[0025] In a preferred embodiment, an exhaust valve is provided on the third pipeline. The exhaust valve has an air inlet, a first air outlet and a second air outlet. The air inlet and the first air outlet are connected to the third pipeline. The air inlet is close to the first end of the third pipeline, and the first air outlet is close to the second end of the third pipeline; when gas is introduced into the air inlet, the air inlet is communicated with the first air outlet; when gas is not introduced into the air inlet, the first air outlet is communicated with the second air outlet.

[0026] The present invention provides a gas supply system, comprising:

[0027] The first gas source;

[0028] The second gas source;

[0029] The above-mentioned gas source conversion manifold, the first end of the first pipeline and the first end of the third pipeline are both connected to the first gas source, and the first end of the second pipeline is connected to the second gas source.

[0030] The features and advantages of the present invention are:

[0031] In this driller's console, the first gas source can be used as the main gas source, and the second gas source can be used as the standby gas source. During operation, the first gas source supplies gas to the first pipeline and the third pipeline, and the second gas source supplies gas to the second pipeline. The gas transported by the first gas source through the third pipeline flows to the valve position control port of the pneumatic reversing valve, so that the pneumatic reversing valve can be kept in an open-circuit state, the second pipeline is disconnected, and the gas of the second gas source cannot flow to the driller's control manifold. The first gas source then supplies gas to the driller's control manifold through the first pipeline to ensure the operation of the driller's control manifold.

[0032] When the first gas source fails, the first gas source fails to supply gas to the first pipeline and the third pipeline. At this time, the third pipeline stops supplying gas to the valve position control port, and the pneumatic control valve switches to the connected state, the second pipeline is connected, and the second gas source can supply gas to the driller control manifold through the second pipeline to ensure the operation of the driller control manifold.

[0033] When the first gas source is operating normally, the driller control console can be supplied with gas by the first gas source. When the first gas source fails, it automatically switches to be supplied with gas by the second gas source. The second pipeline connecting the second gas source can be automatically disconnected and connected according to the smoothness of the first gas source, so as to ensure the stability of the gas supply to the driller control console and improve the reliability of the operation of the driller control console. Brief Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0035] Figure 1 It is a schematic structural diagram of the driller control console provided by the present invention;

[0036] Figure 2 It is a schematic diagram of the gas source conversion manifold provided by the present invention under the condition of the first gas source supplying gas;

[0037] Figure 3 It is a schematic diagram of the gas source conversion manifold provided by the present invention under the condition of the second gas source supplying gas;

[0038] Figure 4 is Figure 2 a schematic diagram of the exhaust valve in the gas source conversion manifold shown;

[0039] Figure 5 is Figure 3 a schematic diagram of the exhaust valve in the gas source conversion manifold shown.

[0040] Explanation of the reference numerals in the drawings:

[0041] 10. First pipeline; 11. First end of the first pipeline; 12. Second end of the first pipeline; 131. First interface; 132. Second interface;

[0042] 20. Second pipeline; 21. First end of the second pipeline; 22. Second end of the second pipeline;

[0043] 30. Third pipeline; 31. First end of the third pipeline; 32. Second end of the third pipeline;

[0044] 40. Pneumatic control reversing valve; 401. Valve position control port; 41. Two-position three-way single pneumatic control reversing valve;

[0045] 50. Exhaust valve; 51. First air outlet; 52. Second air outlet; 53. Air inlet; 54. Spool;

[0046] 60. Muffler;

[0047] 71. First check valve; 72. Second check valve; 73. First ball valve; 74. Second ball valve;

[0048] 81. First air source; 82. Second air source; 83. Driller's control manifold; 84. Pneumatic control manifold;

[0049] 9. Air source conversion manifold. Specific embodiments

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] The reliability of the driller's control console during operation is relatively poor, mainly affected by the main air source at the well site. There is a risk of accidental interruption of the main air source at the well site. After the main air source at the well site is interrupted, the air-operated valve on the driller's control console will not be able to reverse the action of the rotary valve on the remote control console, and only manual operation can be carried out by manually turning the rotary valve handle on the remote control console, which is time-consuming and laborious, and there are also great safety hazards.

[0052] Embodiment 1

[0053] For the pneumatic blowout preventer control device equipped with a driller's control console. The present invention provides a driller's control console, as Figures 1 to 3As shown in the figure, the driller's control console includes a driller's control manifold 83, a first air source 81, a second air source 82, and an air source conversion manifold 9. The air source conversion manifold 9 includes a first pipeline 10, a second pipeline 20, and a third pipeline 30. The first air source 81 is connected to the first end 11 of the first pipeline. The second end 12 of the first pipeline is connected to the intake end of the driller's control manifold 83. The first air source 81 can supply air to the driller's control manifold 83 through the first pipeline 10. The second air source 82 is connected to the first end 21 of the second pipeline. The second end 22 of the second pipeline is connected to the intake end of the driller's control manifold 83. The second air source 82 can supply air to the driller's control manifold 83 through the second pipeline 20. An air-controlled reversing valve 40 for controlling the on-off of the second pipeline 20 is provided on the second pipeline 20. When compressed air enters the valve position control port 401 of the air-controlled reversing valve 40, the air-controlled reversing valve 40 can be switched to an open circuit state. When compressed air does not enter the valve position control port 401 of the air-controlled reversing valve 40, the air-controlled reversing valve 40 can be switched to a connected state. The first end 31 of the third pipeline is connected to the first air source 81, and the second end 32 of the third pipeline is connected to the valve position control port 401. The driller's control manifold 83 includes a control air path for controlling the reversing operation of the rotary valve on the remote control console. Specifically, the control air path includes an air rotary valve and an air source treatment element. During operation, the compressed air at the intake end of the driller's control manifold 83 enters the intake end of each air rotary valve through the air source treatment element. When the air rotary valve is operated, the compressed air enters the cylinder of the remote control console through the outlet end of the air rotary valve to supply air for the rotary valve to reverse.

[0054] In this driller's control console, the first air source 81 can be used as the main air source, and the second air source 82 can be used as the standby air source. During operation, the first air source 81 delivers gas to the first pipeline 10 and the third pipeline 30, and the second air source 82 delivers gas to the second pipeline 20. The gas delivered by the first air source 81 through the third pipeline 30 flows to the valve position control port 401 of the air-controlled reversing valve 40, so that the air-controlled reversing valve 40 can be maintained in an open circuit state, the second pipeline 20 is disconnected, and the gas of the second air source 82 cannot flow to the driller's control manifold 83. The first air source 81 then supplies gas to the driller's control manifold 83 through the first pipeline 10 to ensure the operation of the driller's control manifold 83.

[0055] When the first air source 81 fails, the first air source 81 fails to deliver gas to the first pipeline 10 and the third pipeline 30. At this time, the third pipeline 30 stops delivering gas to the valve position control port 401, the air-controlled reversing valve 40 is switched to a connected state, the second pipeline 20 is connected, and the second air source 82 can supply gas to the driller's control manifold 83 through the second pipeline 20 to ensure the operation of the driller's control manifold 83.

[0056] When the driller's console is operating normally with the first gas source 81, the first gas source 81 can supply gas. When the first gas source 81 fails, it automatically switches to the second gas source 82 to supply gas for the pneumatic valve of the driller's console. The second pipeline 20 connected to the second gas source 82 can automatically disconnect and connect according to the availability of the first gas source 81, thus ensuring the stability of the gas supply to the driller's console and improving the reliability of the operation of the driller's console.

[0057] When using the driller's console, the first gas source 81 can be the main gas source of the well site, and the second gas source 82 can be a gas tank storing gas.

[0058] In an embodiment of the present invention, as Figure 1 、 Figure 4 and Figure 5 shown, an exhaust valve 50 is provided on the third pipeline 30. The exhaust valve 50 has an air inlet 53, a first air outlet 51 and a second air outlet 52. The air inlet 53 and the first air outlet 51 are connected to the third pipeline 30. The air inlet 53 is close to the first end 31 of the third pipeline, and the first air outlet 51 is close to the second end 32 of the third pipeline. When gas is introduced into the air inlet 53, the air inlet 53 is communicated with the first air outlet 51. When no gas is introduced into the air inlet 53, the first air outlet 51 is communicated with the second air outlet 52. The first gas source 81 is communicated with the air inlet 53, and the valve position control port 401 of the pneumatic control reversing valve 40 is communicated with the first air outlet 51. When the first gas source 81 supplies gas normally, as Figure 4 shown, gas is introduced into the air inlet 53. At this time, the air inlet 53 is communicated with the first air outlet 51, and the air inlet 53 is disconnected from the second air outlet 52. That is, the gas of the first gas source 81 can flow through the third pipeline 30 and the exhaust valve 50 to the valve position control port 401, so that the pneumatic control reversing valve 40 remains in an open state.

[0059] When the first gas source 81 stops supplying gas, as Figure 5 shown, no gas is introduced into the air inlet 53. At this time, the air inlet 53 is disconnected from the first air outlet 51, and the first air outlet 51 is communicated with the second air outlet 52. The gas of the first gas source 81 fails to flow to the valve position control port 401, so that the pneumatic control reversing valve 40 switches to a connected state, and the second gas source 82 supplies gas to the driller control manifold 83. At the same time, the gas remaining in the pipeline between the valve position control port 401 and the first air outlet 51 can flow to the second air outlet 52 and be discharged outwards, reducing the interference of the gas on the pneumatic control reversing valve 40 and being beneficial to ensuring the stability of the switching state of the pneumatic control reversing valve 40.

[0060] As Figure 4 and Figure 5As shown in the figure, a valve core 54 is provided in the exhaust valve 50. When gas is introduced into the air inlet 53, the gas can push the valve core 54 towards the second air outlet 52 and block the second air outlet 52, disconnecting the air inlet 53 from the second air outlet 52 and connecting the air inlet 53 to the first air outlet 51. When no gas is introduced into the air inlet 53, the valve core 54 loses the thrust of the air flow, drops back to the air inlet 53, blocks the air inlet 53, and connects the first air outlet 51 to the second air outlet 52. Specifically, when no gas is introduced into the air inlet 53, the force that drives the valve core 54 to drop back to the air inlet 53 can come from the self-weight of the valve core 54 or the spring force.

[0061] Furthermore, a muffler 60 is connected to the second air outlet 52, which can reduce the noise of the exhaust gas through the second air outlet 52 to the outside. At the same time, by adjusting the muffler 60, the exhaust gas speed of the second air outlet 52 can also be adjusted.

[0062] The connection method of the second end 22 of the second pipeline to the air inlet end of the driller control manifold 83 is not limited to one type. For example: the second end 22 of the second pipeline can be directly connected to the air inlet end of the driller control manifold 83; or the second end 22 of the second pipeline can be connected to the first pipeline 10, and the second end 22 of the second pipeline is connected to the air inlet end of the driller control manifold 83 through the second end 12 of the first pipeline. The connection method of the first end 31 of the third pipeline to the first gas source 81 is also not limited to one type. For example: the first end 31 of the third pipeline can be directly connected to the air outlet of the first gas source 81; or the first end 31 of the third pipeline can be connected to the first pipeline 10, and the first end 31 of the third pipeline is connected to the first gas source 81 through the first end 11 of the first pipeline.

[0063] As Figure 1 shown in the figure, a first interface 131, a second interface 132 and a first check valve 71 are provided on the first pipeline 10. The first interface 131, the first check valve 71 and the second interface 132 are distributed in the order from the first end 11 to the second end 12 of the first pipeline. The first check valve 71 allows the gas in the first pipeline 10 to flow from the first interface 131 to the second interface 132. The first end 31 of the third pipeline is connected to the first interface 131, and the second end 22 of the second pipeline is connected to the second interface 132. When the first gas source 81 supplies gas normally, the gas can flow along the first pipeline 10 through the first check valve 71 to the air inlet end of the driller control manifold 83. When the first gas source 81 stops supplying gas, the second gas source 82 flows through the pneumatic control reversing valve 40 and flows to the air inlet end of the driller control manifold 83. The first check valve 71 prevents the gas from flowing from the second interface 132 to the first interface 131, thereby preventing the gas from flowing along the first pipeline 10 to the first gas source 81 and preventing the gas from flowing to the third pipeline 30, which is beneficial to ensuring the stable operation of the pneumatic control reversing valve 40.

[0064] Further, a second one-way valve 72 is provided on the second pipeline 20. The second one-way valve 72 is arranged between the second interface 132 and the pneumatically controlled reversing valve 40. The second one-way valve 72 allows the gas in the second pipeline 20 to flow from the pneumatically controlled reversing valve 40 to the second interface 132. When the second gas source 82 supplies gas, the gas in the second pipeline 20 can pass through the second one-way valve 72 and flow to the inlet end of the driller control manifold 83. When the first gas source 81 supplies gas normally, the gas in the first pipeline 10 flows through the second interface 132, and the second one-way valve 72 can prevent the gas from flowing to the pneumatically controlled reversing valve 40, reducing the damage to the pneumatically controlled reversing valve 40, which is beneficial to protecting the pneumatically controlled reversing valve 40 and reducing the mutual interference between the first gas source 81 and the second gas source 82.

[0065] The pneumatically controlled reversing valve 40 can control the on-off of the second pipeline 20 under the action of the first gas source 81. Preferably, as Figure 1 shown, the pneumatically controlled reversing valve 40 is a two-position three-way single-pneumatic controlled reversing valve 41. Specifically, a spring is provided in the two-position three-way single-pneumatic controlled reversing valve 41. When compressed air is introduced into the valve position control port 401, the thrust of the air flow compresses the spring, causing the two-position three-way single-pneumatic controlled reversing valve 41 to switch to an open-circuit state; when no compressed air is introduced into the valve position control port 401, under the action of the spring, the two-position three-way single-pneumatic controlled reversing valve 41 resets to a closed state.

[0066] Further, a first ball valve 73 is connected to the first end 11 of the first pipeline. The first ball valve 73 is used to control the on-off between the first gas source 81 and the first pipeline 10; a second ball valve 74 is connected to the first end 21 of the second pipeline. The second ball valve 74 is used to control the on-off between the second gas source 82 and the second pipeline 20. The first pipeline 10 and the second pipeline 20 can manually control the switches of the gas sources respectively, ensuring that the gas sources of the two pipelines do not interfere with each other.

[0067] Embodiment 2

[0068] The present invention provides a gas source conversion manifold, as Figures 1 to 3As shown in the figure, the gas source conversion manifold includes: a first pipeline 10, a second pipeline 20, and a third pipeline 30. The first end 11 of the first pipeline is used to connect to a first gas source 81, and the second end 12 of the first pipeline is used to connect to the intake end of a pneumatic control manifold 84. The first gas source 81 can supply gas to the pneumatic control manifold 84 through the first pipeline 10. The first end 21 of the second pipeline is used to connect to a second gas source 82, and the second end 22 of the second pipeline is used to connect to the intake end of the pneumatic control manifold 84. The second gas source 82 can supply gas to the pneumatic control manifold 84 through the second pipeline 20. A pneumatic control reversing valve 40 for controlling the on / off of the second pipeline 20 is provided on the second pipeline 20. When compressed air enters the valve position control port 401 of the pneumatic control reversing valve 40, the pneumatic control reversing valve 40 can be switched to an open circuit state. When compressed air does not enter the valve position control port 401, the pneumatic control reversing valve 40 can be switched to a connected state. The first end 31 of the third pipeline is used to connect to the first gas source 81, and the second end 32 of the third pipeline is connected to the valve position control port 401.

[0069] The pneumatic control manifold 84 in this gas source conversion manifold can be a driller control manifold 83, but this gas source conversion manifold is not limited to being applied to a driller control console. This gas source conversion manifold can also be applied to other pneumatic control manifolds 84 that require gas supply.

[0070] The first gas source 81 can be used as the main gas source, and the second gas source 82 can be used as the standby gas source. During operation, the first gas source 81 delivers gas to the first pipeline 10 and the third pipeline 30, and the second gas source 82 delivers gas to the second pipeline 20. The gas delivered by the first gas source 81 through the third pipeline 30 flows to the valve position control port 401 of the pneumatic control reversing valve 40, enabling the pneumatic control reversing valve 40 to remain in an open circuit state. The second pipeline 20 is disconnected, and the gas of the second gas source 82 cannot flow to the pneumatic control manifold 84. The first gas source 81 then supplies gas to the pneumatic control manifold 84 through the first pipeline 10 to ensure the operation of the pneumatic control manifold 84.

[0071] When the first gas source 81 fails, the first gas source 81 fails to deliver gas to the first pipeline 10 and the third pipeline 30. At this time, the third pipeline 30 stops delivering gas to the valve position control port 401, the pneumatic control reversing valve 40 switches to a connected state, the second pipeline 20 is connected, and the second gas source 82 can supply gas to the pneumatic control manifold 84 through the second pipeline 20 to ensure the operation of the pneumatic control manifold 84.

[0072] When the pneumatic control manifold 84 is operating normally, it can be supplied with gas by the first gas source 81. When the first gas source 81 fails, it automatically switches to being supplied with gas by the second gas source 82 for use by the pneumatic control manifold 84. The second pipeline 20 connected to the second gas source 82 can be automatically disconnected and connected according to the availability of the first gas source 81, which can ensure the stability of the gas supply to the pneumatic control manifold 84 and improve the reliability of the operation of the pneumatic control manifold 84.

[0073] In an embodiment of the present invention, as Figure 1 , Figure 4 and Figure 5 shown, an exhaust valve 50 is provided on the third pipeline 30. The exhaust valve 50 has an air inlet 53, a first air outlet 51 and a second air outlet 52. The air inlet 53 and the first air outlet 51 are connected to the third pipeline 30. The air inlet 53 is close to the first end 31 of the third pipeline, and the first air outlet 51 is close to the second end 32 of the third pipeline; when gas is introduced into the air inlet 53, the air inlet 53 is communicated with the first air outlet 51; when no gas is introduced into the air inlet 53, the first air outlet 51 is communicated with the second air outlet 52. The first air source 81 is communicated with the air inlet 53, and the valve position control port 401 of the pneumatic control reversing valve 40 is communicated with the first air outlet 51. When the first air source 81 supplies gas normally, as Figure 4 shown, gas is introduced into the air inlet 53. At this time, the air inlet 53 is communicated with the first air outlet 51, and the air inlet 53 is disconnected from the second air outlet 52, that is, the gas of the first air source 81 can flow through the third pipeline 30 and the exhaust valve 50 to the valve position control port 401, so that the pneumatic control reversing valve 40 maintains an open circuit state.

[0074] When the first air source 81 stops supplying gas, as Figure 5 shown, no gas is introduced into the air inlet 53. At this time, the air inlet 53 is disconnected from the first air outlet 51, the first air outlet 51 is communicated with the second air outlet 52, and the gas of the first air source 81 fails to flow to the valve position control port 401, so that the pneumatic control reversing valve 40 is switched to a connected state, and the second air source 82 supplies gas to the pneumatic control manifold 84; at the same time, the gas remaining in the pipeline between the valve position control port 401 and the first air outlet 51 can flow to the second air outlet 52 and be discharged outwards, reducing the interference of the gas on the pneumatic control reversing valve 40 and being beneficial to ensuring the stability of the switching state of the pneumatic control reversing valve 40.

[0075] As Figure 4 and Figure 5 shown, a valve core 54 is provided in the exhaust valve 50. When gas is introduced into the air inlet 53, the gas can push the valve core 54 to move towards the second air outlet 52 and block the second air outlet 52, so that the air inlet 53 is disconnected from the second air outlet 52, and the air inlet 53 is communicated with the first air outlet 51; when no gas is introduced into the air inlet 53, the valve core 54 loses the thrust of the air flow and falls back to the air inlet 53, blocking the air inlet 53, and the first air outlet 51 is communicated with the second air outlet 52. Specifically, when no gas is introduced into the air inlet 53, the force driving the valve core 54 to fall back to the air inlet 53 can come from the self-weight of the valve core 54 or the spring force.

[0076] Further, a muffler 60 is connected to the second air outlet 52, which can reduce the noise of the exhaust gas through the second air outlet 52 to the outside. At the same time, by adjusting the muffler 60, the exhaust gas speed of the second air outlet 52 can also be adjusted.

[0077] Embodiment III

[0078] The present invention provides a gas supply system, including: a first gas source 81, a second gas source 82, and the above-mentioned gas source conversion manifold. The first end 11 of the first pipeline and the first end 31 of the third pipeline are both connected to the first gas source 81, and the first end 21 of the second pipeline is connected to the second gas source 82. This gas supply system is not limited to supplying gas to the driller control manifold 83. This gas supply system can also be applied to other systems that require gas supply. In this gas supply system, the first gas source 81 can be used as the main gas source, and the second gas source 82 can be used as the standby gas source. The second pipeline 20 connected to the second gas source 82 can be automatically disconnected and connected according to whether the first gas source 81 is unblocked. When the first gas source 81 operates normally, gas can be supplied by the first gas source 81; when a failure occurs in the first gas source 81, it is automatically switched to the second gas source 82 to supply gas, so as to ensure the stability of gas supply.

[0079] The above are only several embodiments of the present invention. Those skilled in the art can make various changes or modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention based on the content disclosed in the application documents.

Claims

1. A driller's control console, characterized in that, Comprising: Driller control manifold; First gas source; Second gas source; Gas source conversion manifold, the gas source conversion manifold comprising a first pipeline, a second pipeline and a third pipeline; The first gas source is connected to the first end of the first pipeline, the second end of the first pipeline is connected to the intake end of the driller control manifold, and the first gas source can supply gas to the driller control manifold through the first pipeline; The second gas source is connected to the first end of the second pipeline, the second end of the second pipeline is connected to the intake end of the driller control manifold, and the second gas source can supply gas to the driller control manifold through the second pipeline; An air-controlled reversing valve for controlling the on-off of the second pipeline is provided on the second pipeline. When compressed air enters the valve position control port of the air-controlled reversing valve, the air-controlled reversing valve can be switched to an open state; when compressed air does not enter the valve position control port of the air-controlled reversing valve, the air-controlled reversing valve can be switched to a closed state; The first end of the third pipeline is connected to the first gas source, and the second end of the third pipeline is connected to the valve position control port; A first interface, a second interface and a first check valve are provided on the first pipeline. The first interface, the first check valve and the second interface are distributed in the order from the first end of the first pipeline to the second end of the first pipeline. The first check valve allows the gas in the first pipeline to flow from the first interface to the second interface; The first end of the third pipeline is connected to the first interface, and the second end of the second pipeline is connected to the second interface; A second check valve is provided on the second pipeline. The second check valve is provided between the second interface and the air-controlled reversing valve. The second check valve allows the gas in the second pipeline to flow from the air-controlled reversing valve to the second interface; The air-controlled reversing valve is a two-position three-way single-air-controlled reversing valve.

2. The driller control console according to claim 1, characterized in that, An exhaust valve is provided on the third pipeline. The exhaust valve has an intake port, a first outlet port and a second outlet port. The intake port and the first outlet port are connected to the third pipeline. The intake port is close to the first end of the third pipeline, and the first outlet port is close to the second end of the third pipeline; When gas is introduced into the intake port, the intake port is communicated with the first outlet port; when gas is not introduced into the intake port, the first outlet port is communicated with the second outlet port.

3. The driller control console according to claim 2, wherein, A muffler is connected to the second outlet port.

4. The driller's control console according to claim 1, characterized in that, A first ball valve is connected to the first end of the first pipeline, and a second ball valve is connected to the first end of the second pipeline.

5. A gas source conversion manifold, characterized in that, Comprising: A first pipeline, the first end of the first pipeline is used to be connected to a first gas source, the second end of the first pipeline is used to be connected to the intake end of a pneumatic control manifold, and the first gas source can supply gas to the pneumatic control manifold through the first pipeline; A second pipeline, the first end of the second pipeline is used to be connected to a second gas source, the second end of the second pipeline is used to be connected to the intake end of the pneumatic control manifold, and the second gas source can supply gas to the pneumatic control manifold through the second pipeline; An air-controlled reversing valve for controlling the on / off of the second pipeline is provided on the second pipeline. When compressed air enters the valve position control port of the air-controlled reversing valve, the air-controlled reversing valve can be switched to an open circuit state; when compressed air does not enter the valve position control port of the air-controlled reversing valve, the air-controlled reversing valve can be switched to a connected state; A third pipeline, the first end of the third pipeline is used to connect to the first air source, and the second end of the third pipeline is connected to the valve position control port; A first interface, a second interface and a first check valve are provided on the first pipeline. The first interface, the first check valve and the second interface are distributed in the order from the first end to the second end of the first pipeline. The first check valve allows the gas in the first pipeline to flow from the first interface to the second interface; The first end of the third pipeline is connected to the first interface, and the second end of the second pipeline is connected to the second interface; A second check valve is provided on the second pipeline. The second check valve is arranged between the second interface and the air-controlled reversing valve. The second check valve allows the gas in the second pipeline to flow from the air-controlled reversing valve to the second interface; The air-controlled reversing valve is a two-position three-way single air-controlled reversing valve.

6. The gas source conversion manifold according to claim 5, wherein An exhaust valve is provided on the third pipeline. The exhaust valve has an air inlet, a first air outlet and a second air outlet. The air inlet and the first air outlet are connected to the third pipeline. The air inlet is close to the first end of the third pipeline, and the first air outlet is close to the second end of the third pipeline; When gas is introduced into the air inlet, the air inlet is communicated with the first air outlet; when gas is not introduced into the air inlet, the first air outlet is communicated with the second air outlet.

7. A gas supply system, characterized in that, Including: A first air source; A second air source; The air source conversion manifold according to claim 5 or claim 6, the first end of the first pipeline and the first end of the third pipeline are both connected to the first air source, and the first end of the second pipeline is connected to the second air source.

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