CN201162490Y - Full cover type prizing membrane separation nitrogen producing apparatus - Google Patents

Abstract

The utility model provides a full-closure skid-mounted membrane separation nitrogen-making device, which is used for production of nitrogen gas by adopting the membrane separation technology during nitrogen drilling, and belongs to the technical field of manufacturing gas drilling equipment. The full-closure skid-mounted membrane separation nitrogen-making device comprises a compressed air cooling unit, a filter unit, a nitrogen-making device and a control device. The nitrogen-making device is arranged on a skid frame having a cover, and solves the problems of the prior art that under hot conditions, the purity and the output of nitrogen gas are reduced, the reliability and the lifetime of the device are directly affected, and the device can not be ensured to work at a constant working temperature as the device is not monitored on line. The utility model provides the full-closure skid-mounted membrane separation nitrogen-making device which can provide various outputs of nitrogen gas by adopting the method of membrane separation, and the automatic control technologies of temperature and air purity. Nitrogen gas with the purity of more than 95percent can be made through the separation of membrane tube banks. The nitrogen-making device has the characteristics of adjusting the output of nitrogen gas, automatically controlling the temperature of input air, low dissipation of energy and small pressure loss.

Description

The all-cover type skid-mounted film separation and nitrogen-making device

Technical field:

A kind of all-cover type skid-mounted film separation and nitrogen-making device adopts membrane separation technique to produce nitrogen when being used to implement nitrogen injection drilling, belong to the manufacturing technology field of gas drilling equipment.

Background technology:

In oil and gas well drilling, conventional drilling well all will take the liquid drilling mud to inject underground as impinge upon earth strata as the drilling well medium, cooling drill bit and drilling cuttings is taken out of the medium on ground, but the speed of the drilling liquid technology drilling well of this routine is slower, it is slower particularly to implement drilling well in harder stratum, seriously influenced the development rate of China's oil gas, in order to improve the speed of petroleum natural gas exploration, all used the gas drilling technology at present at home and abroad in a large number, the using gases drilling well is with the medium of gas as drilling well, adopt air drilling at non-reservoir, there is the reservoir of natural gas to adopt nitrogen injection drilling, full well all adopts nitrogen injection drilling under the special geologic condition, inject after with gas pressurized underground by drilling rod by plant equipment, reach impinge upon earth strata, the cooling drill bit, and reach drilling cuttings from underground purpose of taking ground out of, during the using gases drilling well, bit speed can increase exponentially, under identical stratigraphic horizon situation, be to use mud several times to tens times as the drilling well medium, therefore the using gases drilling well has remarkable advantages to improving bit speed, compare with conventional drilling liquid drilling technology, the gas drilling technology can improve output, can improve drilling efficiency again, reduce the exploration and development cost, its economic benefit and social benefit are fairly obvious, so, nitrogen prepares equipment just becomes capital equipment in gas drilling, but, the present domestic needed drilling well nitrogen preparation facilities that still do not have, has the nitrogen gas generator of producing other industrial uses abroad, the nitrogen gas generating device that uses on the well site is also arranged, but its shortcoming is: though a lot of countries in the world have produced film nitrogen making machine tool, but prior art equipment all has bigger limitation in mentality of designing and device outfit, can not satisfy the requirement of use, subject matter is to adapt to the field work ability, particularly under hot conditions, the purity of nitrogen and product nitrogen amount obviously descend; And prior art implements on-line monitoring to unstripped gas, oil and dust, so these impurity directly have influence on the reliability and the life-span of device, and in addition, prior art is very responsive to the fluctuation of power supply, can not the constant operating temperature of assurance device.

Summary of the invention:

The purpose of this utility model is the defective at prior art, utilizes the method for film separation and temperature, aeroscope automatic control technology, and a kind of all-cover type skid-mounted film separation and nitrogen-making device that can satisfy the drilling well needs and multiple tolerance can be provided is provided.

The utility model is achieved in that the utility model comprises compressed air cooling unit, filter and three parts of nitrogen-making device, is characterized in that:

Described compressed air cooling unit comprises air inlet port, aftercooler, air cushioning filling, and the aftercooler front end is connected with air compressor machine through air inlet port, the front end that the continuous air cushioning in rear end is irritated;

Filter comprises strainer and electric heater, and the front end of strainer connects air cushioning irritates, and the rear end is connected with electric heater, the front end of the rear end junctional membrane pipe group of electric heater;

Nitrogen-making device comprises film pipe group, the filling of nitrogen buffering and gas outlet, and the rear end of film pipe group connects the front end that the nitrogen buffering is irritated, and the nitrogen buffering filling other end is connected with the gas outlet, is provided with cushion pad between film Guan Zuyu sled seat;

Between described air inlet port and aftercooler, be connected with front end temperature detecting controller and pneumatics protective valve, between aftercooler and air cushioning filling, be provided with the medium temperature controller;

Be provided with dust detector and oil and gas detection instrument between described strainer rear end and the electric heater;

Be respectively arranged with heater inlet temperature controller and heater outlet temperature detecting controller in the front and back of described electric heater, between electric heater and film pipe group, be provided with pneumatic ball valve;

In described electric heater, enter film pipe group through temperature controller after air is heated to 50 ℃～55 ℃ and separate generation nitrogen;

Between described aftercooler and air inlet port, be provided with air inlet port tee piece and valve, between filling of nitrogen buffering and gas outlet, be provided with gas outlet tee piece and valve, between gas outlet tee piece and air inlet port tee piece, be provided with tube connector and valve;

The front end of irritating in the rear end and the nitrogen buffering of described film pipe group is connected with one way valve, counterbalance valve, nitrogen flow meter, purity control valve and atmospheric valve in turn;

Described compressed air cooling unit, filter, nitrogen-making device are arranged on the sled seat that has an outer cover, and outer cover is provided with exhausting window and door, and there is the circle, angle at four drift angle places at outer cover, and outer cover links to each other with the sled seat by junction plate;

Operation of the present utility model is to provide power supply by the power supply box that is arranged on the sled seat, and gauge tap is arranged in the explosion-proof switch board, and the touch operation screen is arranged in the operation cabinet, also is provided with oxygen analyzer in the operation cabinet 2 that the touch operation screen is set;

Advantage of the present utility model and beneficial effect are: the utility model can be by the air after the air compressor pressurization, through film pipe component from, produce purity and reach nitrogen more than 95%, be arranged on the demand that the manual ball valve on the tube connector of film pipe two ends can be regulated nitrogen, the temperature detecting controller that is provided with can be controlled the temperature of input air automatically, therefore has the characteristics that energy consumption is low, the pressure loss is little.

Description of drawings:

Fig. 1 is that the utility model unit does not have outer cover layout connection diagram.

Fig. 2 is the utility model cover structure schematic diagram.

Fig. 3 is the amplification connection diagram of the utility model inlet, outlet when film pipe group is not installed.

The specific embodiment:

Further specify the utility model below in conjunction with accompanying drawing: the utility model comprises compressed air cooling unit, filter and three parts of nitrogen-making device, the utility model is arranged on the sled seat 15 that has an outer cover 27, outer cover 27 is provided with exhausting window 28 and door 29, there is circle, angle 26 at 27 4 drift angle places at outer cover, and outer cover 27 links to each other with sled seat 15 by junction plate 30;

The compressed air cooling unit comprises air inlet port 25, aftercooler 14, air cushioning filling 12, and aftercooler 14 front ends are connected with air compressor machine through air inlet port 25, and the rear end connects the front end of air cushioning filling 12; Between air inlet port 25 and aftercooler 14, be connected with front end temperature detecting controller 16 and pneumatics protective valve 13, aftercooler 14 and air cushioning are provided with medium temperature controller 1 between irritating 12, are provided with air inlet port tee piece and valve between aftercooler 14 and air inlet port 25;

Filter comprises strainer 17 and electric heater 21, and the front end of strainer 17 connects air cushioning and irritates 12, and the rear end is connected with electric heater 21, the front end of the rear end junctional membrane pipe group 10 of electric heater 21; Be provided with dust detector 18, oil and gas detection instrument 19 between strainer 17 rear ends and the electric heater 21, be respectively arranged with heater inlet temperature controller 20 and heater outlet temperature detecting controller 22 in the front and back of electric heater, between electric heater 21 and film pipe group 10, be provided with pneumatic ball valve 23;

Nitrogen-making device comprises film pipe group 10, the filling 3 of nitrogen buffering and gas outlet 11, and the rear end of film pipe group 10 connects the front end of nitrogen buffering filling 3, and nitrogen buffering filling 3 other ends are connected with gas outlet 11; Vibrations when reducing unit operation be not provided with cushion pad 24 between pipe group 10 and the sled seat 15; Between filling 3 of nitrogen buffering and gas outlet 11, be provided with gas outlet tee piece 32 and valve 31, between gas outlet tee piece 32 and air inlet port tee piece, be provided with tube connector and valve;

Operation of the present utility model is to provide power supply by the power supply box 7 that is arranged on the sled seat, and gauge tap is arranged in the explosion-proof switch board, and the touch operation screen is arranged in the operation cabinet 2, also is provided with oxygen analyzer in the operation cabinet 2 that the touch operation screen is set; The cable of power supply box 7 is connected with heater, and the heater of device is carried out temperature constant control, guarantees to enter compressed air temperature constant of film pipe group; The touch operation screen is to the device implementation and operation and show operational factor, and oxygen analyzer is to measuring with the amount of oxygen that separates back gas before separating;

The external compression air enters aftercooler 14 by air inlet port through front end temperature detecting controller 16 and pneumatics protective valve 13 and is cooled, and irritates medium temperature controller 1 between 12 through aftercooler 14 and air cushioning again and enters air cushioning and irritate 12; Air enters strainer 17 after buffering, air is filtered in strainer 17; Air after the cleaning enters electric heater through dust detector 18, oil and gas detection instrument 19, heater inlet temperature controller 20; In electric heater, enter film pipe group through heater outlet temperature detecting controller 22 after air is heated to 50 ℃ and separate generation nitrogen; Gained nitrogen enters the nitrogen buffering through one way valve 9, counterbalance valve 8, nitrogen flow meter 6, purity control valve 5, atmospheric valve 4 and irritates 3, passes out to the down-hole by the gas outlet then and implements drilling well or do other purposes;

For the flow direction and the metering of controlling nitrogen, be connected with one way valve 9, counterbalance valve 8, nitrogen flow meter 6, purity control valve 5 and atmospheric valve 4 in turn in the rear end of described film pipe group and the front end of nitrogen buffering filling 3;

The switch of described aftercooler is controlled automatically by temperature detecting controller, and when temperature was lower than 50 ℃, aftercooler cut out, and when being higher than 55 ℃, aftercooler is opened;

In order to adapt to the needs of gas with various drilling well, between described air inlet port 25 and gas outlet 11, be provided with a communicating pipe 35, tube connector 35 is connected with 36 by threeway 32, is provided with the control that valve 34 is implemented the gas conversion in the middle of tube connector 35; When needs are used air drilling, valve-off 31 and 33, Open valve 34, directly be driven into the down-hole by the defeated next compressed air of compressor through air inlet port 25, tube connector 35 and gas outlet 11 and implement drilling well, when needs are used nitrogen injection drilling, valve-off 34, Open valve 33 and 31, compressed air process air inlet port 25 is transfused to the nitrogen making machine structure of this device, then the nitrogen of using through gas outlet 11 supply drilling wells;

Described dust detector and oil and gas detection device are used for detecting the cleanliness factor that flows out air in the strainer, exceed standard as parameter, and prompting should be changed filter element.

Claims (6)

1, a kind of all-cover type skid-mounted film separation and nitrogen-making device comprises compressed air cooling unit, filter and three parts of nitrogen-making device, it is characterized in that:

Described compressed air cooling unit comprises air inlet port, aftercooler, air cushioning filling, and the aftercooler front end is connected with air compressor machine through air inlet port, the front end that the continuous air cushioning in rear end is irritated;

Filter comprises strainer and electric heater, and the front end of strainer connects air cushioning irritates, and the rear end is connected with electric heater, the front end of the rear end junctional membrane pipe group of electric heater;

Nitrogen-making device comprises film pipe group, the filling of nitrogen buffering and gas outlet, and the rear end of film pipe group connects the front end that the nitrogen buffering is irritated, and the nitrogen buffering filling other end is connected with the gas outlet.

2, all-cover type skid-mounted film separation and nitrogen-making device according to claim 1; it is characterized in that: be connected with front end temperature detecting controller and pneumatics protective valve between described air inlet port and aftercooler, described aftercooler and air cushioning also are provided with the medium temperature controller between irritating.

3, all-cover type skid-mounted film separation and nitrogen-making device according to claim 1 is characterized in that: be provided with dust detector and oil and gas detection instrument between described strainer rear end and the electric heater.

4, all-cover type skid-mounted film separation and nitrogen-making device according to claim 1, it is characterized in that: be respectively arranged with heater inlet temperature controller and heater outlet temperature detecting controller in the front and back of described electric heater, be provided with pneumatic ball valve between electric heater and the film pipe group again;

5, all-cover type skid-mounted film separation and nitrogen-making device according to claim 1, it is characterized in that: between described aftercooler and air inlet port, be provided with air inlet port tee piece and valve, between filling of described nitrogen buffering and gas outlet, be provided with gas outlet tee piece and valve, between gas outlet tee piece and air inlet port tee piece, be provided with tube connector and valve.

6, all-cover type skid-mounted film separation and nitrogen-making device according to claim 1, it is characterized in that: described compressed air cooling unit, filter, nitrogen-making device are arranged on the sled seat that has an outer cover, outer cover is provided with exhausting window and door, and outer cover links to each other with the sled seat by junction plate.

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