Novel blowout prevention hole system

Abstract

The utility model discloses a novel blowout prevention hole system, which is characterized in that two parallel connection ports are arranged at the top end of a blowout prevention hole box body, the two connection ports are connected with a water tank through pipelines, and the bottom end of the blowout prevention hole box body is connected with an air inlet of a first air-water separator through a transparent slag discharge pipe; a gas outlet of the first gas-water separator is connected with a gas inlet of the second gas-water separator through a pipeline, water outlets are formed in the bottom ends of the first gas-water separator and the second gas-water separator, sedimentation tanks are arranged at the bottom ends of the water outlets, and gas outlets in the top ends of the first gas-water separator and the second gas-water separator are connected in parallel and connected with a buffer tank through a pipeline. The buffer tank is connected with a gas pipeline, the other end of the buffer tank is connected with the water tank through a pipeline, an automatic water discharging device is connected to a water discharging port of the water tank, the device is designed to be multi-stage, a buffer space is reserved for a large amount of released gas and coal water, multi-stage sealing is achieved, and gas is prevented from being sprayed out of a connecting gap.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blowout prevention hole equipment technical field, concretely is a novel blowout prevention hole system. BACKGROUND

[0002] The traditional blowout prevention hole device plays an important role in the coal mine gas control, but due to the limitation of working principle and mode, there are some significant safety hazards, the traditional blowout prevention hole device usually only works through a 108 pipe belt extraction, and this single extraction mode is easy to cause water blockage or coal blockage and other problems in practical application, the occurrence of water blockage is usually due to excessive moisture accumulation in the pipeline, leading to difficult extraction, affecting the normal work of blowout prevention hole, and coal blockage is due to the accumulation of coal seam or coal dust, causing pipeline blockage, making gas extraction difficult, so that the release of gas cannot be effectively controlled, increasing the safety hazards of construction site,

[0003] In addition, when carrying out drainage or deslagging operation, the traditional blowout prevention hole device needs to disconnect the negative pressure treatment system, which will cause negative pressure failure to a certain extent, making it difficult to control the gas concentration in the environment of the construction site, which is easy to cause gas leakage and great safety risk due to the increase of gas concentration in the environment, especially when carrying out gas extraction and water coal slurry treatment operation, improper operation will increase the risk of gas explosion, and further endanger the safety of workers, therefore, the traditional blowout prevention hole device cannot effectively meet the requirements of gas control, and faces great safety hazards. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a novel blowout prevention hole system to solve the problem that when carrying out drainage or deslagging operation, negative pressure treatment needs to be disconnected, which is easy to cause the increase of gas concentration in the environment of the construction site, thereby increasing the safety risk, so that the traditional blowout prevention hole device cannot effectively meet the requirements of gas control.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a novel blowout prevention orifice system, including blowout prevention orifice box, first gas water separator, second gas water separator, water tank, the blowout prevention orifice box is hollow shell, and the blowout prevention orifice box is provided with the butt joint hole, and the butt joint hole is connected with the drill rod, and the top of blowout prevention orifice box is equipped with two parallel connection ports, and two connection ports are connected with water tank through pipeline, and the bottom of blowout prevention orifice box is connected with the gas inlet of first gas water separator through transparent slag discharge pipe, and the gas outlet of first gas water separator is connected with the gas inlet of second gas water separator through pipeline, and the bottom of first gas water separator and second gas water separator is equipped with the drain, and the bottom of drain is provided with the sedimentation tank, and the top exhaust port of first gas water separator and second gas water separator is parallel, and is connected with buffer tank through pipeline, and buffer tank is connected with gas pipeline, and the other end of buffer tank is connected with water tank through pipeline, and is parallel with the pipeline of the top exhaust port of first gas water separator and second gas water separator, and the drain of automatic water release device is connected with water tank, and the drain pipe of automatic water release device extends towards sedimentation tank.

[0006] Preferably, the butt joint hole and the connecting part of the drill rod are provided with a sealing packing.

[0007] Preferably, the gas inlet, gas outlet and drain of the first gas water separator and the second gas water separator are provided with butterfly valves.

[0008] Preferably, the drain of the water tank is provided with a stop valve.

[0009] Preferably, the pipeline of the buffer tank and the water tank, and the pipeline of the blowout prevention orifice box and the water tank are provided with butterfly valves.

[0010] Preferably, the water tank is provided with a gas release valve.

[0011] Preferably, the drop of the automatic water release device and the water tank is 0.3 m.

[0012] Preferably, the drop of the transparent slag discharge pipe and the first gas water separator is 0.5 m.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The core technology of the novel blowout prevention orifice system is "leaving space, multi-stage sealing and sufficient extraction", the device adopts multi-stage design, provides buffer space for released gas and water coal, avoids gas from being sprayed out from the connecting gap through multi-stage sealing, and each stage of connecting branch pipe is provided with negative pressure air extraction,

[0015] The system is connected by flange screws at each interface, ensuring the sealing property, and each stage device is communicated with the buffer water tank and connected with a branch pipe, the two residue removal tanks work cooperatively, the first residue removal tank plays a buffering and sedimentation role, the residue removal port of the second residue removal tank is always open, and low negative pressure pre-extraction is carried out, when the blowout hole occurs, the butterfly valve of the residue removal port of the second residue removal tank is immediately closed, an effective barrier is formed, 80% to 90% of the gas is retained in the blowout prevention device, and when there is no blowout hole in the construction process, the butterfly valve of the residue removal port of the second residue removal tank is opened again, low negative pressure pre-extraction is carried out, the impact of the gas on the outside is reduced, and the safety of personnel is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model.

[0017] Fig. 2 It is a structure schematic view of the butt joint device of the drill pipe and the blowout prevention tank of the utility model.

[0018] In the figure: 1, blowout prevention tank; 2, first gas-water separator; 3, second gas-water separator; 4, water tank; 5, automatic water drainer; 6, sedimentation tank. PREFERRED EMBODIMENT

[0019] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] In the description of the utility model, it should be pointed out that the directions or position relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can be detachable connection, or integral connection; can be mechanical connection, can be electrical connection; can be directly connected, can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0022] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] Example 1: Please refer to Figs. 1-2The utility model provides an embodiment: a kind of novel blowout preventer system, including blowout preventer box 1, first gas-water separator 2, second gas-water separator 3, water tank 4, blowout preventer box 1 is hollow shell, and the butt joint hole is set on blowout preventer box 1, and the butt joint hole is connected with drill rod, and the connecting place of butt joint hole and drill rod is provided with sealing packing, and the opening of blowout preventer box 1 is connected with connecting piece through butt joint hole, then butt joint with drill rod, carry out exploitation work, while the connecting place of butt joint hole and drill rod is provided with sealing packing, and flange connection is used, so that the tight seal between blowout preventer box 1 and connecting piece is formed, ensure that the connecting place of drill rod and blowout preventer box 1 does not leak, enhance the security of system, while hollow shell, can effectively resist external pressure, and inner cavity provides space for gas and water separation, butt joint hole design is simple, and drill rod is connected conveniently, the top of blowout preventer box 1 is equipped with two parallel connection ports, two connection ports are connected with water tank 4 by pipeline, water tank 4 is used to store separated water, and is connected with blowout preventer box 1, gas-water separator by pipeline, play the role of buffering and storage water, stabilize water flow, cooperate with automatic water drainer 5 to ensure that water is discharged in time, when blowout occurs, large amount of released gas and water gas first enter water tank 4, and the liquid in water tank 4 can quickly absorb and disperse the impact force of these gases, reduce the speed of gas leakage outside.This can effectively slow down the impact of the gas jet, prevent more serious jet phenomenon caused by sudden changes in pressure, thereby reducing the risk to the drilling site and the operator, the bottom end of the blowout preventer box 1 is connected with the air inlet of the first gas-water separator 2 through the transparent slag discharge pipe, the transparent slag discharge pipe is 0.5m lower than the first gas-water separator 2, the transparent slag discharge pipe connects the blowout preventer box 1 and the first gas-water separator 2, and plays a role of slag discharge and display of slag discharge state. The transparent design can directly observe whether there is an obstruction or slag in the pipeline, which is convenient for maintenance and operation. The gas outlet of the first gas-water separator 2 is connected with the air inlet of the second gas-water separator 3 through a pipeline. The two gas-water separators are used to separate water in the gas to avoid water entering the subsequent pipeline system, effectively separate water and gas, ensure that only gas is contained in the gas pipeline system, improve the operating efficiency of the system, and prolong the service life of the equipment. At the same time, the first gas-water separator 2 plays a buffering and sedimentation role. The drain outlet of the second gas-water separator 3 is always open for low negative pressure pre-extraction. When jet occurs, the drain outlet butterfly valve of the second gas-water separator 3 is immediately closed to form an effective interception barrier, ensuring that 80% to 90% of the gas is retained inside the blowout preventer device. Until there is no jet phenomenon in the construction process, the drain outlet butterfly valve of the second gas-water separator 3 is opened again, and low negative pressure open pre-extraction is performed to reduce the direct impact of gas on the outside, thereby ensuring the safety of personnel on the construction site. At the same time, the working principle of the gas-water separator is a common knowledge in the art, which will not be described in detail in this embodiment. The bottom end of the first gas-water separator 2 and the second gas-water separator 3 is provided with a drain outlet, and the bottom end of the drain outlet is provided with a sedimentation tank 6. The sedimentation tank 6 is used for sedimentation of impurities in separated water to prevent impurities from entering the downstream system, which can effectively remove solid impurities in water and reduce pipeline blockage problems. The top gas outlets of the first gas-water separator 2 and the second gas-water separator 3 are connected in parallel and connected with a buffer tank through a pipeline. The buffer tank is connected with the gas pipeline, and the other end of the buffer tank is connected with the water tank 4 through a pipeline and is connected in parallel with the pipeline of the top gas outlets of the first gas-water separator 2 and the second gas-water separator 3. An automatic water drain 5 is connected to the drain outlet of the water tank 4. The automatic water drain 5 is 0.3m lower than the water tank 4. The automatic water drain 5 is used to automatically drain the accumulated water in the water tank 4 to ensure that the water in the water tank 4 does not accumulate too much. By reasonably designing the drop, the gravity helps the water discharge or sedimentation. The drain pipe of the automatic water drain 5 extends towards the sedimentation tank 6.

[0024] Each connection adopts flange connection, all connections adopt flange connection mode, ensure that the connection is good in sealing, flange connection has good sealing, is simple and convenient to install and disassemble, can bear high pressure, ensure the stability of the system, the gas inlet, the gas outlet and the water outlet of the first gas-water separator 2 and the second gas-water separator 3 are provided with butterfly valves, a stop valve is arranged on the water outlet of the water tank 4, the water outlet of the water tank 4 is provided with a stop valve, for controlling the discharge of water, the pipeline of the buffer tank and the water tank 4, the pipeline of the blowout preventer box 1 and the water tank 4 are all provided with butterfly valves, the butterfly valves are used for adjusting the gas inlet, the gas outlet and the water outlet, ensuring the fluid management of the system in different states, the butterfly valves act quickly and are convenient to adjust, can effectively control the flow of fluid, avoid too much gas or water entering the pipeline system, a gas release valve is arranged on the water tank 4, the gas release valve is arranged on the water tank 4, for discharging the accumulated gas, avoiding gas accumulation, ensuring the stability of the system pressure, preventing accidental gas leakage,

[0025] When drilling, first check the air tightness of the sealing packing and rubber pad of the blowout preventer box 1, whether there is gas leakage, whether there is gas sign between the sealing packing and the drill pipe in the blowout preventer box 1, whether the negative pressure of the gas-water separator and the blowout preventer box 1 is all full negative pressure, whether the water outlet of the gas-water separator is sealed, whether the gas in the drilling area is normal before starting, whether the blowout preventer box 1 and the gas-water separator leak when starting to send water, when blowout occurs during work, immediately close the butterfly valve of the second gas-water separator 3 water outlet, form an effective interception barrier, ensure that 80% to 90% of the gas can be retained in the blowout preventer device, until there is no blowout phenomenon in the construction process, then open the butterfly valve of the second gas-water separator 3 water outlet, low negative pressure open pre-extraction, to reduce the direct impact of gas on the outside.

[0026] The above only describes the embodiments of the present application, and the specific structures and properties known in the art are not described in detail. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A new blowout preventer system characterized by: The utility model relates to a kind of drilling rigs, including blowout preventer box (1), first gas-water separator (2), second gas-water separator (3), water tank (4), the blowout preventer box (1) is hollow shell, and blowout preventer box (1) is equipped with butt joint hole, and butt joint hole is connected with drill rod, and the top of blowout preventer box (1) is equipped with two parallel connection ports, and two connection ports are connected with water tank (4) by pipeline, and the bottom of blowout preventer box (1) is connected with the gas inlet of first gas-water separator (2) by transparent slag discharge pipe, and the gas outlet of first gas-water separator (2) is connected with the gas inlet of second gas-water separator (3) by pipeline, and the bottom of first gas-water separator (2) and second gas-water separator (3) is equipped with drain, and the bottom of drain is provided with sedimentation tank (6), and the top exhaust port of first gas-water separator (2) and second gas-water separator (3) is parallelly connected, and is connected with buffer tank by pipeline, and buffer tank is connected with gas pipeline, and the other end of buffer tank is connected with water tank (4) by pipeline, and is connected with the pipeline of the top exhaust port of first gas-water separator (2) and second gas-water separator (3) in parallel, and the drain of automatic water releaser (5) is connected on the drain of water tank (4), and the drain pipe of automatic water releaser (5) extends towards sedimentation tank (6).

2. The new blowout preventer system according to claim 1, characterized in that: The connecting part of butt joint hole and drill rod is provided with sealing packing.

3. The new blowout preventer system of claim 1, wherein: The gas inlet, gas outlet and drain of first gas-water separator (2) and second gas-water separator (3) are provided with butterfly valve.

4. The new blowout preventer system of claim 1, wherein: The drain of water tank (4) is provided with stop valve.

5. The new blowout preventer system of claim 1, wherein: The pipeline of buffer tank and water tank (4), and the pipeline of blowout preventer box (1) and water tank (4) are provided with butterfly valve at connecting part.

6. The new blowout orifice system of claim 1, wherein: Water tank (4) is provided with air release valve.

7. The new blowout preventer system of claim 1, wherein: The drop of automatic water releaser (5) and water tank (4) is 0.3m.

8. The new blowout orifice system of claim 1, wherein: The drop of transparent slag discharge pipe and first gas-water separator (2) is 0.5m.

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