CN218117922U

CN218117922U - Combined air inlet device of drilling gas engine

Info

Publication number: CN218117922U
Application number: CN202222963525.8U
Authority: CN
Inventors: 齐志军; 王沛勇; 赵博
Original assignee: Shengli Oilfield Shengli Power Machinery Group Co Ltd
Current assignee: Shengli Oilfield Shengli Power Machinery Group Co Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2022-12-23
Anticipated expiration: 2032-11-08

Abstract

The utility model relates to a drilling engine technical field especially relates to well drilling gas engine combination air inlet unit, and it includes engine, turbo charger, air filter box, diaphragm, motor and pneumatic cylinder. The engine is provided with an air inlet pipe, a connecting pipe A is communicated with the air inlet pipe and a connecting pipe B, the connecting pipe B is communicated with an input end on the pump wheel side of the turbocharger, and an output end on the pump wheel side is connected with the other end of the air inlet pipe. The output end of the worm wheel side of the turbocharger is provided with an exhaust pipe, the input end of the turbocharger is provided with an exhaust pipe, and the exhaust pipe is connected with an exhaust hole of the engine. The connecting pipe B is connected with the output end of the air filter box, an air inlet is arranged on the air filter box, and a turning plate is rotatably arranged on the air filter box. The transverse plate is arranged in the air filter box, the electrostatic dust removal net is arranged at the bottom of the transverse plate, the motor is arranged on the transverse plate, the motor is connected with the lead screw in a driving mode, and the lead screw is connected with the scraper in a driving mode. The pneumatic cylinder sets up in electrostatic precipitator net below, and the push pedal is connected in the pneumatic cylinder drive. The utility model discloses sustainable operating time is long, and the structure realizes simply.

Description

Combined air inlet device of drilling gas engine

Technical Field

The utility model relates to a drilling engine technical field especially relates to drilling gas engine combination air inlet unit.

Background

During oil extraction, a drilling gas engine is required to be used, and the nature of the drilling gas engine enables a diesel engine which is the main power of a domestic mechanical drilling machine; because diesel is expensive, effective control of fuel costs becomes a key factor in reducing drilling costs. The gas engine uses natural gas with lower price as fuel, can lead the gas engine into a mechanical drilling well to be used as power equipment, and has important significance for saving fuel cost and reducing exhaust emission. The problem that the gas engine is poor in responsiveness and dynamic performance compared with a diesel engine is not well solved all the time, so that the gas engine for well drilling does not enter large-scale application.

The Chinese patent with the granted publication number of CN207526611U discloses a combined air inlet device of a drilling gas engine, which comprises a premixing air inlet mechanism and an electronic injection air inlet mechanism; the premixing air inlet mechanism comprises an electromagnetic valve, a pressure regulating valve, a zero pressure valve, an air filter, a mixer, a supercharger, an intercooler, a throttle valve, a natural gas pipeline, an air pipeline, a mixed gas pipeline and an air inlet pipe; the electric injection air inlet mechanism comprises an electric injection valve, an electric injection valve pressure plate, an electric injection valve seat and a high-pressure natural gas pipeline. The utility model adopts a combined air inlet mode, when the drilling gas engine is in a stable working condition, a premixing air inlet mechanism is used; when the drilling gas engine is under the sudden loading working condition, the electronic injection gas inlet mechanism is started to add the concentrated mixed gas, so that the drilling gas engine is ensured to have excellent stress and dynamic property, the rotation speed fluctuation is small, and the drilling gas engine can be well adapted to various complex working conditions.

However, the device still has the following defects: no matter which kind of mode of adoption admits air, the process of admitting air all needs to pass through empty filter, and the life of the inside filter core of empty filter is limited, needs to change regularly, and the change process needs to be shut down, shuts down and restarts to large-scale engine, and the instantaneous consumption of the energy can be very big.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is to the problem that exists among the background art, provides well drilling gas engine combination air inlet unit.

The technical scheme of the utility model: the combined air inlet device of the drilling gas engine comprises an engine, a turbocharger, an air filter box, a transverse plate, a motor and a hydraulic cylinder.

The engine is provided with an air inlet pipe, the air inlet pipe is communicated with an intercooler, the air inlet pipe is provided with a connecting pipe A communicated with the inside of the air inlet pipe, the connecting pipe A is located between the engine and the intercooler, the other end of the connecting pipe A is communicated with a connecting pipe B, one end of the connecting pipe B is provided with an air flow meter, the other end of the connecting pipe B is communicated with an input end on the pump wheel side of the turbocharger, and an output end on the pump wheel side of the turbocharger is connected with the other end of the air inlet pipe. The output end of the worm wheel side of the turbocharger is provided with an exhaust pipe, the input end of the exhaust pipe is provided with an exhaust pipe, and the other end of the exhaust pipe is connected with an exhaust hole of the engine.

The air filter box is arranged on one side, far away from the turbocharger, of the connecting pipe B, the connecting pipe B is connected with the output end of the air filter box, an air inlet hole is formed in the air filter box, and a turning plate is rotatably arranged on a side plate of the air filter box. The transverse plate is arranged in the air filter box, the bottom of the transverse plate is provided with the electrostatic dust removal net, and the electrostatic dust removal net is positioned between an air inlet hole and an air outlet hole of the air filter box. The motor is arranged on the transverse plate, the motor drives the connecting screw rod, the screw rod drives the connecting scraper, and the scraper is connected with the surface of the electrostatic dust collection net in a sliding manner. The pneumatic cylinder sets up in the below of electrostatic precipitator net, and the push pedal is connected to the output of pneumatic cylinder, push pedal and air filter box's bottom plate sliding connection.

Preferably, the exhaust gas recirculation device further comprises an actuator, an input end of the actuator is provided with an input pipe, the other end of the input pipe is inserted into the air inlet pipe, an output end of the actuator is provided with an output pipe, the other end of the output pipe is inserted into the exhaust pipe and communicated with the inside of the exhaust pipe, and the output pipe is internally provided with an exhaust bypass valve.

Preferably, the lead screws comprise two lead screws, the two lead screws are respectively positioned on two sides of the electrostatic dust collection net, the top ends of the two lead screws are respectively provided with a gear A, the output end of the motor is provided with a gear B, and the gear A is meshed with the gear B.

Preferably, the bottom of diaphragm symmetry sets up two sets of slide bars, both sides scraper blade respectively with correspond sideslip pole sliding connection.

Preferably, the bottom of the electrostatic dust collection net is provided with an inclined plate, the lower end of the inclined plate faces the turning plate, and the push plate is located below the inclined plate and is in sliding connection with the lower surface of the inclined plate.

Preferably, the side of the two side scrapers close to each other is obliquely downwards arranged.

Preferably, a dust screen is arranged in the air inlet hole.

Compared with the prior art, the utility model discloses following profitable technological effect has:

through setting up intercooler, cool down the highly-compressed air of turbocharging output, utilize the executor to change the size of the gaseous velocity of flow of being controlled simultaneously, thereby maintain air flow rate on required numerical value or certain within range, through setting up the air filter box, set up the electrostatic precipitator net in the air filter box, utilize the electrostatic precipitator net to adsorb free dust in with the air completely, this structure replaces traditional air filter, realizes self-cleaning, thereby can maintain and need not artifical intervention clearance in very long period, and then make the duration operating time extension of this device, simultaneously the utility model discloses whole dust removal structural stability is high, realizes simply.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a side view of the air filter box of FIG. 1;

fig. 3 is an internal structure view of the air filter box.

Reference numerals: 1. an engine; 2. an air inlet pipe; 201. an intercooler; 3. a connecting pipe A; 4. an electromagnetic valve; 5. a connecting pipe B; 6. an air flow meter; 7. a turbocharger; 8. an exhaust gas pipe; 9. an exhaust pipe; 10. an actuator; 11. an air filter box; 12. an air inlet; 13. turning over a plate; 14. a transverse plate; 15. an electrostatic dust removal screen; 16. a motor; 17. a screw rod; 18. a squeegee; 19. a hydraulic cylinder; 20. a push plate.

Detailed Description

Example one

As shown in fig. 1-3, the utility model provides a well drilling gas engine combination air inlet unit, including engine 1, turbo charger 7, air filter box 11, diaphragm 14, motor 16 and pneumatic cylinder 19. Set up intake pipe 2 on engine 1, intake pipe 2 communicates intercooler 201, set up the connecting pipe A3 rather than inside intercommunication in intake pipe 2, connecting pipe A3 is located between engine 1 and intercooler 201, connecting pipe A3's the other end intercommunication connecting pipe B5, connecting pipe B5's one end sets up air flow meter 6, connecting pipe B5's the other end communicates 7 pump wheel side's of turbo charger input, turbo charger 7's pump impeller side output is connected with intake pipe 2's the other end. The output end of the turbo charger 7 on the worm wheel side is provided with an exhaust pipe 8, the input end is provided with an exhaust pipe 9, and the other end of the exhaust pipe 9 is connected with an exhaust hole of the engine 1. Air filter box 11 sets up in one side that turbo charger 7 was kept away from to connecting pipe B5, and connecting pipe B5 is connected with air filter box 11's output, sets up inlet port 12 on air filter box 11, and rotates on air filter box 11's the curb plate and set up and turn over board 13. The horizontal plate 14 is arranged in the air filter box 11, the electrostatic dust removing net 15 is arranged at the bottom of the horizontal plate 14, and the electrostatic dust removing net 15 is positioned between the air inlet 12 and the air outlet of the air filter box 11. The motor 16 is arranged on the transverse plate 14, the motor 16 drives the connecting screw rod 17, the screw rod 17 drives the connecting scraper 18, and the scraper 18 is connected with the surface of the electrostatic dust removal net 15 in a sliding manner. The hydraulic cylinder 19 is arranged below the electrostatic dust removal net 15, the output end of the hydraulic cylinder 19 is connected with the push plate 20, and the push plate 20 is connected with the bottom plate of the air filter box 11 in a sliding mode.

In this embodiment, when air is supplied at a normal speed, air enters the connection pipe B5 from the air filter box 11, then enters the connection pipe A3, then enters the air inlet pipe 2 from the connection pipe A3, and finally enters the engine 1, and when the power performance of the engine needs to be improved, the electromagnetic valve 4 is closed, the turbocharger 7 is started, and the air enters the pump wheel side of the turbocharger 7 along the connection pipe B5 and enters the engine 1 along the air inlet pipe 2, so that the supply speed of the air is improved. No matter the operation is normal power operation or high power operation, the air can pass through the electrostatic dust removal net 15 after entering the air filter box 11, under the effect of the electrostatic dust removal net 15, dust in the air is absorbed, the air entering the engine 1 is ensured to have higher cleanliness, when the electrostatic dust removal net 15 works for a certain time, a large amount of dust can be attached to the surface of the electrostatic dust removal net 15, the motor 16 is started at the moment, the motor 16 drives the screw rods 17 on the two sides to rotate, the scraper 18 further moves downwards, the scraper 18 scrapes off the dust on the electrostatic dust removal net 15, then the hydraulic cylinder 19 is started, the hydraulic cylinder 19 pushes the push plate 20, the dropped dust is pushed out along the opening of the turning plate 13 by the push plate 20, and the self-cleaning of the electrostatic dust removal net 15 is realized.

Example two

As shown in fig. 1, the utility model provides a well drilling gas engine makes up air inlet unit compares in embodiment one, still includes executor 10, and the input of executor 10 sets up the input tube, and in the other end of input tube inserted intake pipe 2, the output of executor 10 set up the output tube, and the other end of output tube inserts in blast pipe 9 and rather than inside intercommunication, and sets up the exhaust bypass valve in the output tube.

In this embodiment, the actuator 10 is used to vary the flow rate of the controlled gas so as to maintain the flow rate at a desired value or within a certain range, while the bypass valve is used to prevent the exhaust gas from flowing back.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims

1. The combined air inlet device of the drilling gas engine is characterized by comprising an engine (1), a turbocharger (7), an air filter box (11), a transverse plate (14), a motor (16) and a hydraulic cylinder (19);

the air inlet pipe (2) is arranged on the engine (1), the air inlet pipe (2) is communicated with the intercooler (201), the air inlet pipe (2) is provided with a connecting pipe A (3) communicated with the interior of the air inlet pipe, the connecting pipe A (3) is positioned between the engine (1) and the intercooler (201), the other end of the connecting pipe A (3) is communicated with a connecting pipe B (5), one end of the connecting pipe B (5) is provided with an air flow meter (6), the other end of the connecting pipe B (5) is communicated with the input end of the pump wheel side of the turbocharger (7), and the output end of the pump wheel side of the turbocharger (7) is connected with the other end of the air inlet pipe (2); the output end of the worm wheel side of the turbocharger (7) is provided with an exhaust pipe (8), the input end of the exhaust pipe is provided with an exhaust pipe (9), and the other end of the exhaust pipe (9) is connected with an exhaust hole of the engine (1);

the air filter box (11) is arranged on one side, far away from the turbocharger (7), of the connecting pipe B (5), the connecting pipe B (5) is connected with the output end of the air filter box (11), an air inlet hole (12) is formed in the air filter box (11), and a turning plate (13) is rotatably arranged on a side plate of the air filter box (11); the transverse plate (14) is arranged in the air filter box (11), the bottom of the transverse plate (14) is provided with an electrostatic dust removal net (15), and the electrostatic dust removal net (15) is positioned between an air inlet (12) and an air outlet of the air filter box (11); the motor (16) is arranged on the transverse plate (14), the motor (16) is connected with the screw rod (17) in a driving mode, the screw rod (17) is connected with the scraper (18) in a driving mode, and the scraper (18) is connected with the surface of the electrostatic dust collection net (15) in a sliding mode; the hydraulic cylinder (19) is arranged below the electrostatic dust collection net (15), the output end of the hydraulic cylinder (19) is connected with the push plate (20), and the push plate (20) is in sliding connection with the bottom plate of the air filter box (11).

2. A combined air inlet unit of a drilling gas engine according to claim 1, characterized by further comprising an actuator (10), wherein the input end of the actuator (10) is provided with an input pipe, the other end of the input pipe is inserted into the air inlet pipe (2), the output end of the actuator (10) is provided with an output pipe, the other end of the output pipe is inserted into the exhaust pipe (9) and communicated with the inside of the exhaust pipe, and a gas exhaust bypass valve is arranged in the output pipe.

3. The combined air inlet device of a drilling gas engine as claimed in claim 1, wherein the number of the screw rods (17) is two, the two screw rods (17) are respectively positioned at two sides of the electrostatic dust collection net (15), the top ends of the two screw rods (17) are respectively provided with a gear A, the output end of the motor (16) is provided with a gear B, and the gear A is meshed with the gear B.

4. The combined air inlet device of the drilling gas engine as claimed in claim 1, characterized in that two sets of sliding rods are symmetrically arranged at the bottom of the transverse plate (14), and the scraping plates (18) at two sides are respectively connected with the corresponding side sliding rods in a sliding manner.

5. A combined air inlet unit of a drilling gas engine as claimed in claim 1, characterized in that the bottom of the electrostatic dust collection net (15) is provided with an inclined plate, the lower end of the inclined plate faces the turning plate (13), and the push plate (20) is positioned below the inclined plate and is connected with the lower surface of the inclined plate in a sliding manner.

6. A combined air inlet unit for a drilling gas engine according to claim 1, characterized in that the side of the scrapers (18) adjacent to each other is arranged obliquely downwards.

7. A drilling gas engine combined air inlet device according to claim 1, characterized in that a dust screen is arranged in the air inlet hole (12).