CN105526103A

CN105526103A - Safe and environment-friendly natural gas extraction device

Info

Publication number: CN105526103A
Application number: CN201610043615.1A
Authority: CN
Inventors: 徐浩钟
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-24
Filing date: 2016-01-24
Publication date: 2016-04-27

Abstract

The invention discloses a safe and environment-friendly natural gas extraction device and belongs to a natural gas extraction technology. An electromagnetic coil is installed in a protective shell of the safe and environment-friendly natural gas extraction device and is arranged outside a gas pumping shell. The annular inner end of the protective shell is fixed to the exterior of the gas pumping shell. A gas outlet valve is fixed in a center hole of the gas pumping shell. A push spring and a magnetism-induced piston are arranged in the gas pumping shell. The push spring presses against the magnetism-induced piston. A gas inlet cavity is sealed through a sealing flat plate, and a gas inlet channel of an extrusion cavity is sealed through a passed gas sealing plate. A limiting hole plate is fixed in a limiting hole in the upper end of the magnetism-induced piston. A sealing cone or a sealing ball is installed in an inner conical hole of the magnetism-induced piston. A containing hole is formed in the lower end of the magnetism-induced piston. The safe and environment-friendly natural gas extraction device is compact in structure, small in vibration, strong in power, high in electric energy utilizing rate, high in natural gas extraction efficiency, good in market prospect and beneficial to industrial production.

Description

Safety extracting rock gas environmental protection equipment

Technical field

The present invention relates to natural gas extraction technical field, particularly relate to a kind of safety extracting rock gas environmental protection equipment taking out pressure rock gas.

Background technique

The extraction of traditional rock gas adopts the inflating pump compressed natural gas of connecting rod to extract, the large inefficiency of volume of the inflating pump of connecting rod.For this reason, we have devised the rock gas extracting device that volume is little, pumping efficiency is high.

Summary of the invention

The object that the present invention relates to is in order to provide a kind of manufacture and the method thereof that utilization rate of electrical is high, efficiently take out the safety extracting rock gas environmental protection equipment of pressure rock gas.

For achieving the above object, safety extracting rock gas environmental protection equipment of the present invention mainly comprises protecting crust, electromagnetic coil, pump gas shell, inlet hole, suction tude, seal plate, crosses airtight shrouding, sealing cone or ball sealer, restriction cap, promotes spring, answers magnetic piston, restriction orifice, internal taper hole, vent, gas outlet valve, field controller; Or described safety extracting rock gas environmental protection equipment mainly comprises protecting crust, electromagnetic coil, pump gas shell, inlet hole, suction tude, seal plate, crosses airtight shrouding, sealing cone or ball sealer, restriction cap, promotes spring, answers magnetic piston, restriction orifice, internal taper hole, vent, gas outlet valve, field controller, electronic remote controller.

In protecting crust, be provided with electromagnetic coil, electromagnetic coil is fixed on the upper part outside pump gas shell, and protecting crust is fixed on the outside protection electromagnetic coil on the top of pump gas shell; Below the outside of protecting crust, one side is fixed with foot rest, and the lower end of foot rest is lower than the position of the inlet hole of pump gas shell lower end.

The circuit connecting electromagnetic coil is connected with field controller, the circuit of field controller is connected with electronic remote controller, electronic remote controller is connected with insulated electric conductor, and the electronic signal receiver of field controller, electronic remote controller and electronic remote controller is arranged in protecting crust; Or the circuit connecting electromagnetic coil is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust.

Seal plate, restriction cap are installed in pump gas shell, cross airtight shrouding, promote spring, answer magnetic piston, restriction orifice, promote the upper part of spring fitting at the inner chamber of pump gas shell, magnetic piston is answered to be arranged on the lower part of the inner chamber of pump gas shell, promotion spring is pressed in answer the upper end portion of magnetic piston or be pressed in be fixed on and answers on point water confinement plate of magnetic piston upper end, answers magnetic piston can slide up and down in the inner chamber of pump gas shell; Answering the restricted orifice plate of spacing hole internal fixtion of magnetic piston upper end, the annular sealing surface of the sealing neck end in point compression of answering the upper part of magnetic piston was provided with airtight shrouding, cross airtight shrouding can move up and down between annular sealing surface and restriction orifice, the airtight shrouding of mistake can seal with answering the annular sealing surface of magnetic piston to coordinate or open the gas-entered passageway of the extrusion chamber entered in pump gas shell; Be provided with seal plate in closed hole in the sealing neck of the lower end in pump gas shell, restriction cap is fixed on the outside of sealing neck by screw thread or jump ring, and when restriction cap is in the receiving bore of answering the lower end of magnetic piston upwards to cave in, restriction cap and receiving bore have gap; Seal plate coordinate with the closed hole in the sealing neck of pump gas shell lower end and can seal or open the air-inlet cavity entered in pump gas shell air inlet lead to; When answering magnetic piston stroking upward, the inner chamber part of answering the pump gas shell of magnetic piston lower part is air-inlet cavity; When answering magnetic descent of piston, the inner chamber part of answering the pump gas shell of magnetic piston upper part is extrusion chamber.Be fixed with suction tude at the air inlet position of the lower end of pump gas shell, the endoporus of suction tude communicates with inlet hole; Be provided with gas outlet valve in the upper end of pump gas shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of pump gas shell; The part that the upper-end surface of pump gas shell is exposed in the upper end of gas outlet valve is connected with the pipeline of transport gas by flexible pipe or hard tube.

The material of described protecting crust is the material of a type in metal, plastics, nylon, glass fibre reinforced plastics or the composite material of several types; The material of a type in material employing metal, plastics, nylon and the glass fibre reinforced plastics of hollow valve body and pump gas shell or the composite material of several types; Seal the material of a type in cone and ball sealer employing metal, plastics, nylon and rubber or the composite material of several types; Seal plate and the material of a type crossed in material employing metal, plastics, nylon and the glass fibre reinforced plastics of airtight shrouding or the composite material of several types; The material of magnetic piston is answered to be can the material of hard to bear magnetic field suction.

Described protecting crust is the hollow cavity of annular, hollow cavity has string holes, is provided with electromagnetic coil and field controller in hollow cavity, or, electromagnetic coil, field controller and electronic remote controller are installed in hollow cavity; The inner of the annular housing of hollow cavity is fixed on pump gas shell; String holes is the hole allowing insulated electric conductor pass.

For the ease of protecting crust processing and be convenient to accessory to load in protecting crust, described protecting crust is the assemblying body after segmentation, and after the annular position of protecting crust is divided into two parts, recombinant is together.

The inner chamber of described pump gas shell is circular cylindrical cavity, and the cylndrical surface of columniform cavity is smooth curved surface; Upper end on the center line of inner chamber has that center hole passes pump gas shell, lower end has inlet hole to pass pump gas shell; There is sealing neck protruding upward at the middle part of the lower end in pump gas shell, the upper part of the inside of sealing neck is closed hole, lower part is inlet hole, when not installing seal plate in closed hole, closed hole communicates with inlet hole, and closed hole coordinates with one side below seal plate.

Described gas outlet valve comprises hollow valve body and sealing is bored or ball sealer, and hollow valve body is hollow tubular, and internal taper hole is in the middle part of the inner chamber of hollow tubular or middle and lower part, and the internal diameter of the upper part of the internal taper hole in hollow tubular internal diameter that is large, lower part is little; There is return-air sealed end the lower end of hollow valve body, the lower end surface of return-air sealed end in the lower end of hollow valve body, upper-end surface is internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with sealing cone or ball sealer.Described internal taper hole is the circular hole having tapering, the face of circular hole is inner conical surface, inner conical surface and the mating spherical surfaces sealing male cone (strobilus masculinus) or the ball sealer of boring, can inner conical surface be sealed under the effect of the gravity of sealing cone or ball sealer self, inner conical surface can be opened with sealing by suction when cone or ball sealer have above suction and bore or the passage of ball face sealing of ball sealer sealing; The air pressure sealed above cone or ball sealer is larger, and the gluing, sealing effect of sealing cone or ball sealer and inner conical surface is better; Can open when being with the rock gas of pressure from the endoporus of hollow valve body lower end inner conical surface with sealing bore or ball sealer sealing and form passage.

For the ease of pump gas shell processing and be convenient to accessory to load in pump gas shell, described pump gas shell is the assemblying body after segmentation; The upper end of the circular cylindrical cavity part in pump gas shell is divided into two sections, the main body that the upper part of segmentation place is pump cover, lower part is pump gas shell, center hole is on pump cover, and inlet hole is at the middle part of the main body lower end of pump gas shell, and the body combination of pump cover and pump gas shell becomes a composite entity; Or, the lower end of the circular cylindrical cavity part in pump gas shell is divided into two sections, the main body that the lower part of segmentation place is pump cover, upper part is pump gas shell, inlet hole is at the middle part of pump cover, center hole is at the middle part of the upper end of the main body of pump gas shell, and the body combination of pump cover and pump gas shell becomes a composite entity.

Described magnetic piston of answering is columniform iron core, the limited location hole, position of the center line of columniform iron core, point compression, vent and receiving bore; The limited location hole, upper end of columniform iron core is a point compression below spacing hole, and being vent below the middle part of point compression, is receiving bore below vent; The inner ring of point compression is sealing neck, and the inside of sealing neck is one section above of vent, and the annular sealing surface of sealing neck upper end is lower than the upper end of the periphery of point compression; The annular sealing surface at top sealing neck was not installed airtight shrouding and crossed airtight shrouding when seal with annular sealing surface, vent with answer the receiving bore of magnetic piston and divide a compression and communicate; The receiving bore of the oriented upper depression in lower end of columniform iron core, when answering the lower end in magnetic piston arrives pump gas shell, receiving bore is for holding restriction cap and making restriction cap not collide with answering magnetic piston; Spacing hole is used for fixing restriction orifice, and point compression is for disperseing the rock gas that passes through and guiding rock gas to enter air passing hole on airtight shrouding; The periphery of columniform iron core is smooth periphery, and smooth periphery has the annular groove of depression, and annular groove is embedded with seal ring; Periphery coordinates with the inner chamber of pump gas shell can the inner chamber of canned pump gas shell, and can slide in the inner chamber of pump gas shell.Described spacing hole is the rounded face of circular hole circular hole is inlay restriction orifice stationary plane, and the annular bottom surface of circular hole is the face that restrict orifice plate inlays the degree of depth; A described point compression is divided into two sections, and the upper part of sealing neck is circular hole, and the exterior portion of sealing neck is the groove of ring, and the periphery of the periphery of circular hole and the groove of ring is connected, and circular hole communicates with vent; Described vent is the hole communicated with receiving bore and point compression; The circular hole that described receiving bore communicates with vent, upwards cave in.

Described annular sealing surface is the smooth sealing surface of ring, and the sealing surface that annular sealing surface is answering the upper end of the sealing neck of magnetic piston with the airtight shrouding of mistake coordinates.

The airtight shrouding of described mistake is dull and stereotyped, and the part that below dull and stereotyped, the intermediate portion of one side coordinates with annular sealing surface is sealing surface, and the part beyond dull and stereotyped sealing surface coordinates with annular sealing surface has passing hole, and passing hole is used for allowing gas pass through.

Described restriction orifice is the plate having air passing hole, and the anchor ring being embedded in spacing hole is adjacent to the base ring face of spacing hole; Air passing hole is used for allowing rock gas pass through.

Described sealing cone is cone or cone cylinder, and the periphery of cone or cone cylinder is smooth male cone (strobilus masculinus); The male cone (strobilus masculinus) of sealing cone and inner conical surface press down by the self gravitation sealing conisphere and seal inner conical surface when sealing.

Described ball sealer is spherosome or oval ball, and the periphery of spherosome or oval ball is sealing surface, and sealing surface is smooth sphere; To bore or the self gravitation of ball sealer presses down and seals inner conical surface by sealing when sealing cone or the sphere of ball sealer and inner conical surface seal.

Described closed hole is circular hole, and above the inlet hole in the sealing neck of the lower end in pump gas shell, the rounded face of circular port holds inner headed face or the internal conical surface of seal plate, and the annular bottom surface of the circular hole of closed hole is sealing surface.

Described seal plate is circular flat board, and below dull and stereotyped, one side is sealing surface, and sealing surface coordinates with the closed hole in the sealing neck of pump gas shell lower end.

Described restriction cap is calotte, and the crown of calotte part has the air passing hole allowing gas pass through, and the hatband partial fixing of calotte can limit the distance that the seal plate of installing in sealing neck is moved on sealing neck.

Described field controller controls the controller that generates an electromagnetic field of electromagnetic coil, control time and the time length generated an electromagnetic field that electromagnetic field produces and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time.

Described electronic remote controller connects and cuts off the circuit switch generated an electromagnetic field, and comprise the switch sections and electronic telecontrol part that switch on or off circuit, electronic telecontrol part comprises remote controller switch and electronic signal receiver; Remote controller switch is used for staff and carries with, and is convenient to staff's handling safety and extracts the normal work of rock gas environmental protection equipment and cut off the control circuit of safety extracting rock gas environmental protection equipment; Described electronic remote controller can have in the present invention, also can not have.

Described suction tude connects the inlet hole of pump gas shell and the hollow tubular being connected the pipeline exporting rock gas in gas well.

Described inlet hole be in rock gas enters in pump gas shell extrusion chamber through via hole, at the lower part in the center portion of sealing neck; When not installing seal plate in closed hole, the closed hole on the sealing neck of protecting crust lower end communicates with inlet hole.

In air-inlet cavity, lay in rock gas, in extrusion chamber, extrude rock gas and produce air pressure; When entering rock gas in extrusion chamber, air-inlet cavity communicates with extrusion chamber; When discharging rock gas in extrusion chamber, air-inlet cavity is by sealing cone or ball sealer and answer the internal taper hole in magnetic piston seal and disconnect the gas-entered passageway entering extrusion chamber.

Described safety extracting rock gas environmental protection equipment in the process of taking out pressure rock gas, control into rock gas passage and go out rock gas passage one-way check valve in there is no return spring; When air-inlet cavity enters rock gas, the suction of answering magnetic piston stroking upward to produce opens the sealing of the closed hole in the sealing neck of the lower end in seal plate and pump gas shell and the passage opened into rock gas, the airtight shrouding of mistake being arranged on the sealing neck upper end of answering on magnetic piston automatic decline return and close the passage entering rock gas entered in extrusion chamber and seal under the effect of self gravitation; When extrusion chamber enters rock gas, being arranged on the sealing cone of the internal taper hole of gas outlet valve or ball sealer utilizes the gravity of self to make sealing cone or ball sealer decline return and the passage of closing the extrusion rock gas on gas outlet valve seals automatically, answers magnetic descent of piston and makes to produce pressure in air-inlet cavity and promote to be arranged on to answer the up passage entering rock gas entered in extrusion chamber of then opening of the airtight shrouding of mistake of the sealing neck upper end of magnetic piston; When extrusion chamber is given vent to anger, under the effect of outlet pressure, promote sealing cone on the internal taper hole of gas outlet valve or ball sealer up and open the passage of giving vent to anger of gas outlet valve, answer magnetic descent of piston and make to produce in air-inlet cavity pressure and promote to be arranged on and answer that the airtight shrouding of mistake of the sealing neck upper end of magnetic piston is up opens the passage entering rock gas entered in extrusion chamber then.

In order to ensure that safety extracting rock gas environmental protection equipment can normally work, field controller is adopted to control connection and the cut-out of the connecting circuit of electromagnetic coil.

Keep shape in order to ensure protecting crust to protect electromagnetic coil and be not easy distortion, the cavity of protecting crust manufactures the skeleton having support.

In order to enable to answer the rock gas in the extrusion chamber in magnetic piston driving pump gas shell to enter gas outlet valve, adopting and promoting spring and answer the rock gas in magnetic descent of piston compress inlet air chamber to enter power in extrusion chamber as promoting.

During use, the pipeline that the inlet end of the suction tude of safety extracting rock gas environmental protection equipment and the rock gas in gas well export is connected.There is no electronic remote controller, directly connect the power-on circuit of circuit switch and the field controller to be connected with insulated electric conductor; Have electronic remote controller, electronic signal receiver connects the circuit of electronic remote controller and field controller after receiving activating signal; The power-on circuit that field controller connects electromagnetic coil generates an electromagnetic field; The attraction force that electromagnetic field produces pulls the pressure of answering magnetic piston overpowers to promote spring to move up, when answering magnetic piston to start up, be arranged on and answer the airtight shrouding of mistake of the sealing neck upper end of magnetic piston descending and close the gas-entered passageway that rock gas enters extrusion chamber under the effect of the gravity of self; When answering magnetic piston stroking upward, answer the up of magnetic piston and make the rock gas in extrusion chamber create pressure, have the rock gas of pressure from the endoporus of the sealed end of gas outlet valve lower end enter into internal taper hole in gas outlet valve promote sealing cone or ball sealer up and open the sealing channel of gas outlet valve, make the rock gas in extrusion chamber after gas outlet valve, enter into the pipeline of transport gas or the container containing of transport natural gas; Answer magnetic piston when up, magnetic piston is answered also to make to create pull of vacuum in air-inlet cavity, pull of vacuum is inhaled motive sealing flat board and seal plate and the sealing surface of closed hole is separated, rock gas enters into closed hole from suction tude through inlet hole, then the air passing hole on restriction cap enters in the air-inlet cavity of answering below magnetic piston in pump gas shell.

Answer magnetic piston stroking upward move to compression promote the compression stage of spring spacing time, the power-on circuit of field controller cutoff solenoid, electromagnetic field disappears, and answers magnetic piston descending under the promotion promoting spring; When answering magnetic piston to start descending, the seal plate of installing in the sealing neck of pump gas shell lower end closes the gas-entered passageway entering air-inlet cavity under the effect of self gravitation, sealing cone in gas outlet valve or ball sealer descending return and seal the inner conical surface of gas outlet valve under the effect of the gravity of self, has cut off the outlet passageway of extrusion chamber; Answer magnetic piston when descending, the rock gas of answering magnetic piston to promote to enter in air-inlet cavity and make rock gas produce internal pressure, have the rock gas of pressure upwards wash annular sealing surface and the sealing of crossing airtight shrouding open from the upper end of answering the vent of magnetic piston to enter into sealing neck and continued up after airtight shrouding be shifted, through annular divide air drain, enter in extrusion chamber after the passing hole on airtight shrouding and the air passing hole on restriction orifice.

Answer magnetic piston promote spring promotion under descending put in place time, be arranged on and answer the airtight shrouding of mistake of the sealing neck upper end of magnetic piston descending and the annular sealing surface of sealing neck upper end is shut and made rock gas not return air-inlet cavity under the effect of the gravity of self, now, the power-on circuit that field controller connects again electromagnetic coil again generates an electromagnetic field and makes to answer magnetic piston stroking upward; The connection of circulation like this and cut-out circuit, electromagnetic coil is generated an electromagnetic field pull to answer magnetic piston stroking upward and allow and promote spring and promote to answer magnetic descent of piston, constantly rock gas pumped and be transported in the pipeline of transport gas or in the container containing of transport natural gas.

A manufacture method for safety extracting rock gas environmental protection equipment, is characterized in that:

During fabrication, the material of a type in protecting crust employing metal, plastics, nylon, glass fibre reinforced plastics or the composite material manufacture of several types; Hollow valve body and pump gas shell adopt the material of a type in metal, plastics, nylon and glass fibre reinforced plastics or the composite material manufacture of several types; Seal the material of a type in cone and ball sealer employing metal, plastics, nylon and rubber or the composite material manufacture of several types; Seal plate and the material of a type crossed in the employing of airtight shrouding metal, plastics, nylon and glass fibre reinforced plastics or the composite material manufacture of several types; Magnetic piston is answered to adopt the material manufacture of the hard to bear magnetic field suction of energy.

Protecting crust creates the hollow cavity of annular, and hollow cavity has string holes, and string holes creates the hole allowing insulated electric conductor pass; Electromagnetic coil and field controller are installed in hollow cavity, or, electromagnetic coil, field controller and electronic remote controller are installed in hollow cavity; The inner of the annular housing of hollow cavity is fixed on pump gas shell.

Conveniently assemble, during fabrication, after protecting crust is divided into two-part manufacture from annular position, recombinant together for protecting crust.

The inner chamber of pump gas shell creates columniform cavity, and the periphery of columniform cavity creates smooth curved surface; Upper end on the center line of inner chamber manufacture have through pump gas shell center hole, lower end manufactures has inlet hole to pass pump gas shell; The middle part of the lower end in pump gas shell manufactures sealing neck protruding upward, the inside of sealing neck upper part creates closed hole, lower part creates inlet hole, closed hole communicates with inlet hole, and closed hole simultaneously coordinates with below seal plate.

Gas outlet valve creates hollow valve body and sealing is bored or ball sealer two-part, hollow valve body creates hollow tubular, internal taper hole is manufactured on middle part or the middle and lower part of the inner chamber of hollow tubular, and the internal diameter that the internal diameter that the upper part of the internal taper hole in hollow tubular manufactures is large, lower part manufactures is little; The lower end of hollow valve body manufactures return-air sealed end, the lower end surface of return-air sealed end is manufactured on the lower end of hollow valve body, upper-end surface creates internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with sealing cone or ball sealer.Described ball sealer creates spherosome or oval ball, and the periphery of spherosome or oval ball creates sealing surface, and sealing surface creates sphere; To bore or the self gravitation of ball sealer presses down and seals inner conical surface by sealing when sealing cone or the sphere of ball sealer and inner conical surface seal; Described sealing cone creates cone or cone cylinder, and the periphery of cone or cone cylinder creates smooth male cone (strobilus masculinus); The male cone (strobilus masculinus) of sealing cone and inner conical surface press down by the self gravitation sealing conisphere and seal inner conical surface when sealing.Described internal taper hole creates the circular hole of tapering, the face of circular hole creates inner conical surface, can inner conical surface be sealed under the effect of the gravity of sealing cone or ball sealer self, inner conical surface can be opened with sealing by suction when cone or ball sealer have above suction and bore or the passage of ball face sealing of ball sealer sealing; The air pressure sealed above cone or ball sealer is larger, and the gluing, sealing effect of sealing cone or ball sealer and inner conical surface is better; Can open when being with the rock gas of pressure from the endoporus of hollow valve body lower end inner conical surface with sealing bore or ball sealer sealing and form passage.

For the ease of pump gas shell processing and be convenient to accessory to load in pump gas shell, described pump gas shell create segmentation processing manufacture after assemblying body; The upper end of the circular cylindrical cavity part in pump gas shell is divided into two sections of manufactures, the main body that the upper part of segmentation place creates pump cover, lower part creates pump gas shell, center hole is manufactured on pump cover, inlet hole is manufactured on the middle part of the main body lower end of pump gas shell, and being combined into after the main body after pump cover and pump gas shell manufactures is a composite entity; Or, the lower end of the circular cylindrical cavity part in pump gas shell is divided into two sections of manufactures, the main body that the lower part of segmentation place creates pump cover, upper part creates pump gas shell, inlet hole is manufactured on the middle part of pump cover, center hole is manufactured on the middle part of the upper end of the main body of pump gas shell, and being combined into after the main body of pump cover and pump gas shell manufactures is a composite entity.

Answer magnetic piston to create columniform iron core, the position of the center line of columniform iron core manufactures limited location hole, point compression, vent and receiving bore; The upper end of columniform iron core manufactures limited location hole, and manufacturing below spacing hole has a point compression, and manufacturing below the middle part of point compression has vent, and manufacturing below vent has receiving bore; Divide the inner ring of compression to create sealing neck, the upper end portion of sealing neck creates annular sealing surface, and the upper-end surface of sealing neck creates the upper end of the periphery lower than point compression; The annular sealing surface of upper end sealing neck was not installed airtight shrouding and crossed airtight shrouding when seal with annular sealing surface, vent with answer the receiving bore of magnetic piston and divide a compression and communicate; The lower end of columniform iron core manufactures the receiving bore of oriented upper depression; The periphery of columniform iron core creates smooth periphery, and smooth periphery manufactures the annular groove having depression, and annular groove is embedded with seal ring; Periphery coordinates with the inner chamber of pump gas shell can the inner chamber of canned pump gas shell, and can slide in the inner chamber of pump gas shell.Described spacing hole creates circular hole, and the ring surface of circular hole creates inlays restriction orifice stationary plane, and the annular bottom surface of circular hole creates the face that restrict orifice plate inlays the degree of depth; A described point compression creates two sections, and the upper part of sealing neck creates circular hole, and the exterior portion of sealing neck creates the groove of ring, and the periphery of the periphery of circular hole and the groove of ring creates one, and circular hole communicates with vent; Described vent creates the circular hole communicated with receiving bore and point compression; Described receiving bore creates the circular hole upwards caved in, and communicates with vent.

Described annular sealing surface creates the smooth sealing surface of ring, is manufactured on and answers the upper end of the sealing neck of magnetic piston to coordinate with the sealing surface crossing airtight shrouding.

The airtight shrouding of described mistake creates flat board, the part that below dull and stereotyped, the intermediate portion of one side coordinates with annular sealing surface creates sealing surface, in part beyond dull and stereotyped sealing surface coordinates with annular sealing surface, manufacture has passing hole, and passing hole is used for allowing gas pass through.

Restriction orifice creates the plate of air passing hole, and the anchor ring being embedded in spacing hole is adjacent to the base ring face of spacing hole; Air passing hole creates the hole allowing rock gas pass through.

Closed hole creates circular hole, is manufactured on above the inlet hole in the sealing neck of the lower end in pump gas shell, and the rounded face of closed hole creates the inner headed face or internal conical surface that hold seal plate, and the annular bottom surface of the circular hole of closed hole creates sealing surface.

Seal plate creates circular flat board, and below dull and stereotyped, one side creates sealing surface, and sealing surface coordinates with the closed hole in the sealing neck of pump gas shell lower end.

Restriction cap creates calotte, and the crown of calotte part manufactures the air passing hole allowing gas pass through, and the hatband partial fixing of calotte can limit the distance that the seal plate of installing in sealing neck is moved on sealing neck.

Field controller creates and controls the controller that generates an electromagnetic field of electromagnetic coil, control time that electromagnetic field produces and the time that generates an electromagnetic field length and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time.

Electronic remote controller creates to be connected and cuts off the circuit switch generated an electromagnetic field, and comprise the switch sections and electronic telecontrol part that switch on or off circuit, electronic telecontrol part comprises remote controller switch and electronic signal receiver; Described electronic remote controller can have in the present invention, also can not have.

Suction tude creates the inlet hole connecting pump gas shell and the hollow tubular being connected the pipeline exporting rock gas in gas well.

Inlet hole create in extrusion chamber that rock gas enters in pump gas shell through via hole, be manufactured on the lower part in the center portion of sealing neck; When not installing seal plate in closed hole, the closed hole on the sealing neck of protecting crust lower end communicates with inlet hole.

In protecting crust, be provided with electromagnetic coil, electromagnetic coil is fixed on the upper part outside pump gas shell, and protecting crust is fixed on the outside protection electromagnetic coil on the top of pump gas shell; Below the outside of protecting crust, one side is fixed with foot rest, and the lower end of foot rest is lower than the position of the inlet hole of pump gas shell lower end.The circuit connecting electromagnetic coil is connected with field controller, the circuit of field controller is connected with electronic remote controller, electronic remote controller is connected with insulated electric conductor, and the electronic signal receiver of field controller, electronic remote controller and electronic remote controller is arranged in protecting crust; Or the circuit connecting electromagnetic coil is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust.Seal plate is installed in pump gas shell, crosses airtight shrouding, limits cap, promotes spring, answers magnetic piston, restriction orifice, promote the upper part of spring fitting at the inner chamber of pump gas shell, magnetic piston is answered to be arranged on the lower part of the inner chamber of pump gas shell, promotion spring is pressed in answer the upper end portion of magnetic piston or be pressed in be fixed on and answers on point water confinement plate of magnetic piston upper end, answers magnetic piston can slide up and down in the inner chamber of pump gas shell; Answering the restricted orifice plate of spacing hole internal fixtion of magnetic piston upper end, the annular sealing surface of the sealing neck end in point compression of answering the upper part of magnetic piston was provided with airtight shrouding, cross airtight shrouding can move up and down between annular sealing surface and restriction orifice, the airtight shrouding of mistake can seal with answering the annular sealing surface of magnetic piston to coordinate or open the gas-entered passageway of the extrusion chamber entered in pump gas shell; Be provided with seal plate in closed hole in the sealing neck of the lower end in pump gas shell, restriction cap is fixed on the outside of sealing neck by screw thread or jump ring, and when restriction cap is in the receiving bore of answering the lower end of magnetic piston upwards to cave in, restriction cap and receiving bore have gap; Seal plate coordinates with the closed hole in the sealing neck of pump gas shell lower end and can seal or open the gas-entered passageway of the air-inlet cavity entered in pump gas shell; When answering magnetic piston stroking upward, the inner chamber part of answering the pump gas shell of magnetic piston lower part is air-inlet cavity; When answering magnetic descent of piston, the inner chamber part of answering the pump gas shell of magnetic piston upper part is extrusion chamber.Be fixed with suction tude at the air inlet position of the lower end of pump gas shell, the endoporus of suction tude communicates with inlet hole; Be provided with gas outlet valve in the upper end of pump gas shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of pump gas shell; The part that the upper-end surface of pump gas shell is exposed in the upper end of gas outlet valve is connected with the pipeline of transport gas by flexible pipe or hard tube.

The compact structure of safety extracting rock gas environmental protection equipment of the present invention, vibrate little, powerful, utilization rate of electrical are high, the efficiency extracting rock gas is high, is suitable for extracting the rock gas in gas well; The market prospects of industrialization are good, commercial value is high, manufacture and use all very convenient.

Accompanying drawing explanation

Fig. 1 and Fig. 2 is the structural representation of safety extracting rock gas environmental protection equipment;

Fig. 3 is the structural representation of answering magnetic piston;

Fig. 4 is the schematic appearance of the plan view of answering magnetic piston.

Shown in figure: pump gas shell 1, answer magnetic piston 2, restriction orifice 3, passing hole 4, hollow valve body 5, sealing cone or ball sealer 6, cross airtight shrouding 7, promote spring 8, electromagnetic coil 9, protecting crust 10, seal plate 11, restriction cap 12, foot rest 13, suction tude 15, inlet hole 16, annular sealing surface 17, point compression 18, spacing hole 19, air passing hole 20, vent 21, receiving bore 23, annular bottom surface 25.

Embodiment

Safety extracting rock gas environmental protection equipment of the present invention mainly comprises protecting crust 10, electromagnetic coil 9, pump gas shell 1, inlet hole 16, suction tude 15, seal plate 11, crosses airtight shrouding 7, sealing cone or ball sealer 6, restriction cap 12, promotes spring 8, answers magnetic piston 2, restriction orifice 3, internal taper hole, vent 21, gas outlet valve, field controller; Or comprise protecting crust 10, electromagnetic coil 9, pump gas shell 1, inlet hole 16, suction tude 15, seal plate 11, cross airtight shrouding 7, sealing cone or ball sealer 6, restriction cap 12, promote spring 8, answer magnetic piston 2, restriction orifice 3, internal taper hole, vent 21, gas outlet valve, field controller, electronic remote controller.

In protecting crust 10, be provided with electromagnetic coil 9, electromagnetic coil 9 is fixed on the upper part outside pump gas shell 1, and protecting crust 10 is fixed on the outside protection electromagnetic coil 9 on the top of pump gas shell 1; Below the outside of protecting crust 10, one side is fixed with foot rest 13, and the lower end of foot rest 13 is lower than the position of the inlet hole 16 of pump gas shell 1 lower end.

The circuit connecting electromagnetic coil 9 is connected with field controller, the circuit of field controller is connected with electronic remote controller, electronic remote controller is connected with insulated electric conductor, and the electronic signal receiver of field controller, electronic remote controller and electronic remote controller is arranged in protecting crust 10.

Seal plate 11, restriction cap 12 are installed in pump gas shell 1, cross airtight shrouding 7, promote spring 8, answer magnetic piston 2, restriction orifice 3, promote the upper part that spring 8 is arranged on the inner chamber of pump gas shell 1, magnetic piston 2 is answered to be arranged on the lower part of the inner chamber of pump gas shell 1, promotion spring 8 is pressed in answer the upper end portion of magnetic piston 2 or be pressed in be fixed on and answers on point water confinement plate of magnetic piston 2 upper end portion, answers magnetic piston 2 can slide up and down in the inner chamber of pump gas shell 1; Answering the restricted orifice plate 3 of spacing hole 19 internal fixtion of magnetic piston 2 upper end, the annular sealing surface 17 of the sealing neck end in point compression 18 of answering the upper part of magnetic piston 2 was provided with airtight shrouding 7, cross airtight shrouding 7 can move up and down between annular sealing surface 17 and restriction orifice 3, the airtight shrouding 7 of mistake can seal with answering the annular sealing surface 17 of magnetic piston 2 to coordinate or open the gas-entered passageway of the extrusion chamber entered in pump gas shell 1; In closed hole in the sealing neck of the lower end in pump gas shell 1, seal plate 11 is installed, restriction cap 12 is fixed on the outside of sealing neck by screw thread or jump ring, when restriction cap 12 is in the receiving bore 23 of answering the lower end of magnetic piston 2 upwards to cave in, restriction cap 12 has gap with receiving bore 23; Seal plate 11 coordinate with the closed hole in the sealing neck of pump gas shell 1 lower end and can seal or open the air-inlet cavity entered in pump gas shell 1 air inlet lead to; When answering magnetic piston 2 up, the inner chamber part of answering the pump gas shell 1 of magnetic piston 2 lower part is air-inlet cavity; When answering magnetic piston 2 descending, the inner chamber part of answering the pump gas shell 1 of magnetic piston 2 upper part is extrusion chamber.Be fixed with suction tude at the air inlet position of the lower end of pump gas shell 1, the endoporus of suction tude communicates with inlet hole; Be provided with gas outlet valve in the upper end of pump gas shell 1, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of pump gas shell 1; The part that the upper-end surface of pump gas shell 1 is exposed in the upper end of gas outlet valve is connected with the pipeline of transport gas by flexible pipe or hard tube.

During fabrication, protecting crust 10 adopts the material of the type in metal, plastics, nylon, glass fibre reinforced plastics or the composite material manufacture of several types; Hollow valve body 5 and pump gas shell 1 adopt the material of the type in metal, plastics, nylon and glass fibre reinforced plastics or the composite material manufacture of several types; Sealing cone or ball sealer 6 adopt the material of the type in metal, plastics, nylon and rubber or the composite material manufacture of several types; Seal plate 11 and excessively airtight shrouding 7 adopt the material of the type in metal, plastics, nylon and glass fibre reinforced plastics or the composite material manufacture of several types; Magnetic piston 2 is answered to adopt the material manufacture of the hard to bear magnetic field suction of energy.

Protecting crust 10 creates the hollow cavity of annular, and hollow cavity has string holes, and string holes creates the hole allowing insulated electric conductor pass; Electromagnetic coil 9 and field controller are installed in hollow cavity, or, electromagnetic coil, field controller and electronic remote controller are installed in hollow cavity; The inner of the annular housing of hollow cavity is fixed on pump gas shell 1.

Conveniently assemble, during fabrication, after protecting crust 10 is divided into two-part manufacture from annular position, recombinant together for protecting crust 10.

The inner chamber of pump gas shell 1 creates columniform cavity, and the periphery of columniform cavity creates smooth curved surface; Upper end on the center line of inner chamber manufacture have through pump gas shell 1 center hole, lower end manufactures has inlet hole 16 through pump gas shell 1; The middle part of the lower end in pump gas shell 1 manufactures sealing neck protruding upward, the upper part of the inside of sealing neck creates closed hole, lower part creates inlet hole 16, closed hole communicates with inlet hole 16, and closed hole coordinates with one side below seal plate 11.

Gas outlet valve creates hollow valve body 5 and sealing is bored or ball sealer 6 two-part, hollow valve body 5 creates hollow tubular, internal taper hole is manufactured on middle part or the middle and lower part of the inner chamber of hollow tubular, and the internal diameter that the internal diameter that the upper part of the internal taper hole in hollow tubular manufactures is large, lower part manufactures is little; The lower end of hollow valve body 5 manufactures return-air sealed end, the lower end surface of return-air sealed end is manufactured on the lower end of hollow valve body 5, upper-end surface creates internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with sealing cone or ball sealer 6.Described ball sealer 6 creates spherosome or oval ball, and the periphery of spherosome or oval ball creates sealing surface, and sealing surface creates sphere; Gravity by self when the sphere of sealing cone or ball sealer 6 and inner conical surface seal presses down and seals inner conical surface; Described sealing cone 6 creates cone or cone cylinder, and the periphery of cone or cone cylinder creates smooth male cone (strobilus masculinus); The male cone (strobilus masculinus) of sealing cone and inner conical surface press down by the self gravitation sealing conisphere and seal inner conical surface when sealing.Described internal taper hole creates the circular hole of tapering, the face of circular hole creates inner conical surface, can inner conical surface be sealed under the effect of the gravity of sealing cone or ball sealer 6 self, inner conical surface can be opened with sealing by suction when cone or ball sealer 6 have above suction and bore or the passage of ball face sealing of ball sealer sealing; The air pressure sealed above cone or ball sealer 6 is larger, and the gluing, sealing effect of sealing cone or ball sealer 6 and inner conical surface is better; Can open when being with the rock gas of pressure from the endoporus of hollow valve body 5 lower end inner conical surface with sealing bore or ball sealer 6 sealing and form passage.

For the ease of pump gas shell 1 processing and be convenient to accessory to load in pump gas shell 1, described pump gas shell 1 create segmentation processing manufacture after assemblying body; The upper end of the circular cylindrical cavity part in pump gas shell 1 is divided into two sections of manufactures, the main body that the upper part of segmentation place creates pump cover, lower part creates pump gas shell 1, center hole is manufactured on pump cover, inlet hole 16 is manufactured on the middle part of the main body lower end of pump gas shell 1, and being combined into after the main body after pump cover and pump gas shell 1 manufactures is a composite entity; Or, the lower end of the circular cylindrical cavity part in pump gas shell 1 is divided into two sections of manufactures, the main body that the lower part of segmentation place creates pump cover, upper part creates pump gas shell 1, inlet hole 16 is manufactured on the middle part of pump cover, center hole is manufactured on the middle part of the upper end of the main body of pump gas shell 1, and being combined into after the main body of pump cover and pump gas shell 1 manufactures is a composite entity.

Answer magnetic piston 2 to create columniform iron core, the position of the center line of columniform iron core manufactures limited location hole 19, point compression 18, vent 21 and receiving bore 23; The upper end of columniform iron core manufactures limited location hole 19, and manufacturing below spacing hole 19 has point compression 18, and manufacturing below the middle part of point compression 18 has vent 21, and manufacturing below vent 21 has receiving bore 23; Divide the inner ring of compression 18 to create sealing neck, the upper end portion of sealing neck creates annular sealing surface 17, and the upper-end surface of sealing neck creates the upper end of the periphery lower than point compression 18; The annular sealing surface 17 of upper end sealing neck was not installed airtight shrouding 7 and crossed airtight shrouding 7 when not sealing with annular sealing surface 17, vent 21 with answer the receiving bore 23 of magnetic piston 2 lower end and divide a compression 18 to communicate; The lower end of columniform iron core manufactures the receiving bore 23 of oriented upper depression; The periphery of columniform iron core creates smooth periphery, and smooth periphery manufactures the annular groove having depression, and annular groove is embedded with seal ring; Periphery coordinates with the inner chamber of pump gas shell 1 can the inner chamber of canned pump gas shell 1, and can slide in the inner chamber of pump gas shell 1.Described spacing hole 19 creates circular hole, and the ring surface of circular hole creates inlays restriction orifice 3 stationary plane, and the annular bottom surface 25 of circular hole creates the face that restrict orifice plate 3 inlays the degree of depth; A described point compression 18 creates two sections, and the upper part of sealing neck creates circular hole, and the exterior portion of sealing neck creates the groove of ring, and the periphery of the periphery of circular hole and the groove of ring creates one, and circular hole communicates with vent 21; Described vent 21 creates the circular hole communicated with receiving bore 23 and point compression 18; Described receiving bore 23 creates the circular hole upwards caved in, and communicates with vent 21.

Described annular sealing surface 17 creates the smooth sealing surface of ring, is manufactured on and answers the upper end of the sealing neck of magnetic piston 2 to coordinate with the sealing surface crossing airtight shrouding 7.

The airtight shrouding 7 of described mistake creates flat board, the part that below dull and stereotyped, the intermediate portion of one side coordinates with annular sealing surface 17 creates sealing surface, in part beyond dull and stereotyped sealing surface coordinates with annular sealing surface 17, manufacture has passing hole, and passing hole is used for allowing gas pass through.

Restriction orifice 3 creates the plate of air passing hole 20, and the anchor ring being embedded in spacing hole 19 is adjacent to the base ring face of spacing hole 19; Air passing hole 20 creates the hole allowing rock gas pass through.

Closed hole creates circular hole, be manufactured on above the inlet hole 16 in the sealing neck of the lower end in pump gas shell 1, the rounded face of closed hole creates the inner headed face or internal conical surface that hold seal plate 11, and the annular bottom surface 25 of the circular hole of closed hole creates sealing surface.

Seal plate 11 creates circular flat board, and below dull and stereotyped, one side creates sealing surface, and sealing surface coordinates with the closed hole in the sealing neck of pump gas shell 1 lower end.

Restriction cap 12 creates calotte, and the crown of calotte part manufactures the air passing hole 20 allowing gas pass through, and the hatband partial fixing of calotte can limit the distance that the seal plate 11 of installing in sealing neck is moved on sealing neck.

Field controller creates and controls the controller that generates an electromagnetic field of electromagnetic coil 9, control time that electromagnetic field produces and the time that generates an electromagnetic field length and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time.

Suction tude 15 creates the inlet hole 16 connecting pump gas shell 1 and the hollow tubular being connected the pipeline exporting rock gas in gas well.

Inlet hole 16 create in extrusion chamber that rock gas enters in pump gas shell 1 through via hole, be manufactured on the lower part in the center portion of sealing neck; When not installing seal plate 11 in closed hole, the closed hole on the sealing neck of protecting crust 10 lower end communicates with inlet hole 16.

In order to ensure that safety extracting rock gas environmental protection equipment can normally work, field controller is adopted to control connection and the cut-out of the connecting circuit of electromagnetic coil 9.

Keep shape in order to ensure protecting crust 10 can protect electromagnetic coil 9 and be not easy distortion, the cavity of protecting crust 10 manufactures the skeleton having support.

In order to make to answer magnetic piston 2 can enter gas outlet valve by the rock gas in the extrusion chamber in driving pump gas shell 1, adopt the rock gas promoting spring 8 and export in extrusion chamber as promoting to answer the descending compression of magnetic piston 2.

In air-inlet cavity, lay in rock gas, in extrusion chamber, extrude rock gas and produce air pressure; When entering rock gas in extrusion chamber, air-inlet cavity communicates with extrusion chamber; When discharging rock gas in extrusion chamber, air-inlet cavity is by sealing cone or ball sealer 6 and answer the internal taper hole in magnetic piston 2 seal and disconnect the gas-entered passageway entering extrusion chamber.

Described safety extracting rock gas environmental protection equipment in the process of taking out pressure rock gas, control into rock gas passage and go out rock gas passage one-way check valve in there is no return spring; When air-inlet cavity enters rock gas, the suction of the up generation of magnetic piston 2 is answered to open seal plate 11 and the sealing of the closed hole in the sealing neck of the lower end in pump gas shell 1 and the passage opened into rock gas, the airtight shrouding 7 of mistake being arranged on the sealing neck upper end of answering on magnetic piston 2 automatic decline return and close the passage entering rock gas entered in extrusion chamber and seal under the effect of self gravitation; When extrusion chamber enters rock gas, being arranged on the sealing cone of the internal taper hole of gas outlet valve or ball sealer 6 utilizes the gravity of self to make sealing cone or ball sealer 6 decline return and the passage of closing the extrusion rock gas on gas outlet valve seals automatically, answers magnetic piston 2 descending and makes to produce air-inlet cavity in pressure promotion and be arranged on and answer the up passage entering rock gas entered in extrusion chamber of then opening of the airtight shrouding of mistake 7 of the sealing neck upper end of magnetic piston 2; When extrusion chamber is given vent to anger, under the effect of outlet pressure, promote sealing cone on the internal taper hole of gas outlet valve or ball sealer 6 up and open the passage of giving vent to anger of gas outlet valve, answer magnetic piston 2 descending and make to produce in air-inlet cavity pressure and promote to be arranged on and answer that the airtight shrouding of mistake 7 of the sealing neck upper end of magnetic piston 2 is up opens the passage entering rock gas entered in extrusion chamber then.

During use, the pipeline that the inlet end of the suction tude 15 of safety extracting rock gas environmental protection equipment and the rock gas in gas well export is connected.There is no electronic remote controller, directly connect the power-on circuit of circuit switch and the field controller to be connected with insulated electric conductor; Have electronic remote controller, electronic signal receiver connects the circuit of electronic remote controller and field controller after receiving activating signal; The power-on circuit that field controller connects electromagnetic coil 9 generates an electromagnetic field; The attraction force that electromagnetic field produces pulls the pressure of answering magnetic piston 2 to overcome promotion spring 8 to move up, when answering magnetic piston 2 to start up, be arranged on and answer the airtight shrouding of mistake 7 of the sealing neck upper end of magnetic piston 2 descending and close the gas-entered passageway that rock gas enters extrusion chamber under the effect of the gravity of self; When answering magnetic piston 2 up, answer the up of magnetic piston 2 and make the rock gas in extrusion chamber create pressure, have the rock gas of pressure from the endoporus of the sealed end of gas outlet valve lower end enter into internal taper hole in gas outlet valve promote sealing cone or ball sealer 6 up and open the sealing channel of gas outlet valve, make the rock gas in extrusion chamber after gas outlet valve, enter into the pipeline of transport gas or the container containing of transport natural gas; Answer magnetic piston 2 when up, magnetic piston 2 is answered also to make to create pull of vacuum in air-inlet cavity, pull of vacuum is inhaled motive sealing dull and stereotyped 11 and seal plate 11 and the sealing surface of closed hole is separated, rock gas enters into closed hole from suction tude through inlet hole 16, then the air passing hole 20 on restriction cap 12 enters in the air-inlet cavity of answering below magnetic piston 2 in pump gas shell 1.

Answer magnetic piston 2 up move to compression promote the compression stage of spring 8 spacing time, the power-on circuit of field controller cutoff solenoid 9, electromagnetic field disappears, and answers magnetic piston 2 descending under the promotion promoting spring 8; When answering magnetic piston 2 to start descending, the seal plate 11 of installing in the sealing neck of pump gas shell 1 lower end closes the gas-entered passageway entering air-inlet cavity under the effect of self gravitation, sealing cone in gas outlet valve or ball sealer 6 descending return and seal the inner conical surface of gas outlet valve under the effect of the gravity of self, has cut off the outlet passageway of extrusion chamber; Answer magnetic piston 2 when descending, the rock gas of answering magnetic piston 2 to promote to enter in air-inlet cavity and make rock gas produce internal pressure, have the rock gas of pressure upwards wash annular sealing surface 17 and the sealing of crossing airtight shrouding 7 open from the upper end of answering the vent 21 of magnetic piston 2 to enter into sealing neck and continued up after airtight shrouding 7 was shifted, divide air drain through annular, cross the passing hole on airtight shrouding 7 and the air passing hole 20 on restriction orifice 3 after enter in extrusion chamber.

Answer magnetic piston 2 promote spring 8 promotion under descending put in place time, be arranged on and answer the airtight shrouding of mistake 7 of the sealing neck upper end of magnetic piston 2 descending and the annular sealing surface 17 of sealing neck upper end is shut and made rock gas not return air-inlet cavity under the effect of the gravity of self, now, the power-on circuit that field controller connects again electromagnetic coil 9 again generates an electromagnetic field and makes to answer magnetic piston 2 up; The connection of circulation like this and cut-out circuit, electromagnetic coil 9 is generated an electromagnetic field pull to answer magnetic piston 2 up and allow and promote spring 8 and promote to answer magnetic piston 2 descending, constantly rock gas pumped and be transported in the pipeline of transport gas or in the container containing of transport natural gas.

Claims

1. a safety extracting rock gas environmental protection equipment, is characterized in that: described safety extracting rock gas environmental protection equipment comprises protecting crust, electromagnetic coil, pump gas shell, inlet hole, suction tude, seal plate, crosses airtight shrouding, ball sealer, restriction cap, promotes spring, answers magnetic piston, restriction orifice, internal taper hole, vent, gas outlet valve, field controller;

In protecting crust, be provided with electromagnetic coil, electromagnetic coil is fixed on the upper part outside pump gas shell, and protecting crust is fixed on the outside protection electromagnetic coil on the top of pump gas shell; Below the outside of protecting crust, one side is fixed with foot rest, and the lower end of foot rest is lower than the position of the inlet hole of pump gas shell lower end;

The circuit connecting electromagnetic coil is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust;

Seal plate, restriction cap are installed in pump gas shell, cross airtight shrouding, promote spring, answer magnetic piston, restriction orifice, promote the upper part of spring fitting at the inner chamber of pump gas shell, magnetic piston is answered to be arranged on the lower part of the inner chamber of pump gas shell, promotion spring is pressed in answer the upper end portion of magnetic piston or be pressed in be fixed on and answers on point water confinement plate of magnetic piston upper end, answers magnetic piston can slide up and down in the inner chamber of pump gas shell; Answering the restricted orifice plate of spacing hole internal fixtion of magnetic piston upper end, the annular sealing surface of the sealing neck end in point compression of answering the upper part of magnetic piston was provided with airtight shrouding, cross airtight shrouding can move up and down between annular sealing surface and restriction orifice, the airtight shrouding of mistake can seal with answering the annular sealing surface of magnetic piston to coordinate or open the gas-entered passageway of the extrusion chamber entered in pump gas shell; Be provided with seal plate in closed hole in the sealing neck of the lower end in pump gas shell, restriction cap is fixed on the outside of sealing neck by screw thread or jump ring, and when restriction cap is in the receiving bore of answering the lower end of magnetic piston upwards to cave in, restriction cap and receiving bore have gap; Seal plate coordinate with the closed hole in the sealing neck of pump gas shell lower end and can seal or open the air-inlet cavity entered in pump gas shell air inlet lead to; When answering magnetic piston stroking upward, the inner chamber part of answering the pump gas shell of magnetic piston lower part is air-inlet cavity; When answering magnetic descent of piston, the inner chamber part of answering the pump gas shell of magnetic piston upper part is extrusion chamber; Be fixed with suction tude at the air inlet position of the lower end of pump gas shell, the endoporus of suction tude communicates with inlet hole; Be provided with gas outlet valve in the upper end of pump gas shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of pump gas shell; The part that the upper-end surface of pump gas shell is exposed in the upper end of gas outlet valve is connected with the pipeline of transport gas by flexible pipe or hard tube;

The material of described protecting crust is the material of a type in metal, plastics, nylon, glass fibre reinforced plastics or the composite material of several types; The material of a type in material employing metal, plastics, nylon and the glass fibre reinforced plastics of hollow valve body and pump gas shell or the composite material of several types; The material of a type in material employing metal, plastics, nylon and the rubber of ball sealer or the composite material of several types; Seal plate and the material of a type crossed in material employing metal, plastics, nylon and the glass fibre reinforced plastics of airtight shrouding or the composite material of several types; The material of magnetic piston is answered to be can the material of hard to bear magnetic field suction;

Described protecting crust is the hollow cavity of annular, hollow cavity has string holes, is provided with electromagnetic coil and field controller in hollow cavity; The inner of the annular housing of hollow cavity is fixed on pump gas shell; String holes is the hole allowing insulated electric conductor pass;

For the ease of protecting crust processing and be convenient to accessory to load in protecting crust, described protecting crust is the assemblying body after segmentation, and after the annular position of protecting crust is divided into two parts, recombinant is together;

The inner chamber of described pump gas shell is circular cylindrical cavity, and the cylndrical surface of columniform cavity is smooth curved surface; Upper end on the center line of inner chamber has that center hole passes pump gas shell, lower end has inlet hole to pass pump gas shell; There is sealing neck protruding upward at the middle part of the lower end in pump gas shell, the upper part of the inside of sealing neck is closed hole, lower part is inlet hole, when not installing seal plate in closed hole, closed hole communicates with inlet hole, and closed hole coordinates with one side below seal plate;

Described gas outlet valve comprises hollow valve body and ball sealer, and hollow valve body is hollow tubular, and internal taper hole is in the middle part of the inner chamber of hollow tubular or middle and lower part, and the internal diameter of the upper part of the internal taper hole in hollow tubular internal diameter that is large, lower part is little; There is return-air sealed end the lower end of hollow valve body, the lower end surface of return-air sealed end in the lower end of hollow valve body, upper-end surface is internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with ball sealer; Described internal taper hole is the circular hole having tapering, the face of circular hole is inner conical surface, the mating spherical surfaces of inner conical surface and ball sealer, can inner conical surface be sealed under the effect of the gravity of ball sealer self, the passage of the ball face sealing of inner conical surface and ball sealer when having suction on ball sealer, can be opened by suction; Air pressure above ball sealer is larger, and the gluing, sealing effect of ball sealer and inner conical surface is better; The sealing of inner conical surface and ball sealer can be opened when being with the rock gas of pressure from the endoporus of hollow valve body lower end and form passage;

For the ease of pump gas shell processing and be convenient to accessory to load in pump gas shell, described pump gas shell is the assemblying body after segmentation; The upper end of the circular cylindrical cavity part in pump gas shell is divided into two sections, the main body that the upper part of segmentation place is pump cover, lower part is pump gas shell, center hole is on pump cover, and inlet hole is at the middle part of the main body lower end of pump gas shell, and the body combination of pump cover and pump gas shell becomes a composite entity; Or, the lower end of the circular cylindrical cavity part in pump gas shell is divided into two sections, the main body that the lower part of segmentation place is pump cover, upper part is pump gas shell, inlet hole is at the middle part of pump cover, center hole is at the middle part of the upper end of the main body of pump gas shell, and the body combination of pump cover and pump gas shell becomes a composite entity;

Described magnetic piston of answering is columniform iron core, the limited location hole, position of the center line of columniform iron core, point compression, vent and receiving bore; The limited location hole, upper end of columniform iron core is a point compression below spacing hole, and being vent below the middle part of point compression, is receiving bore below vent; The inner ring of point compression is sealing neck, and the inside of sealing neck is one section above of vent, and the annular sealing surface of sealing neck upper end is lower than the upper end of the periphery of point compression; The annular sealing surface at top sealing neck was not installed airtight shrouding and crossed airtight shrouding when seal with annular sealing surface, vent with answer the receiving bore of magnetic piston and divide a compression and communicate; The receiving bore of the oriented upper depression in lower end of columniform iron core, when answering the lower end in magnetic piston arrives pump gas shell, receiving bore is for holding restriction cap and making restriction cap not collide with answering magnetic piston; Spacing hole is used for fixing restriction orifice, and point compression is for disperseing the rock gas that passes through and guiding rock gas to enter air passing hole on airtight shrouding; The periphery of columniform iron core is smooth periphery, and smooth periphery has the annular groove of depression, and annular groove is embedded with seal ring; Periphery coordinates with the inner chamber of pump gas shell can the inner chamber of canned pump gas shell, and can slide in the inner chamber of pump gas shell; Described spacing hole is the rounded face of circular hole circular hole is inlay restriction orifice stationary plane, and the annular bottom surface of circular hole is the face that restrict orifice plate inlays the degree of depth; A described point compression is divided into two sections, and the upper part of sealing neck is circular hole, and the exterior portion of sealing neck is the groove of ring, and the periphery of the periphery of circular hole and the groove of ring is connected, and circular hole communicates with vent; Described vent is the hole communicated with receiving bore and point compression; The circular hole that described receiving bore communicates with vent, upwards cave in;

Described annular sealing surface is the smooth sealing surface of ring, and the sealing surface that annular sealing surface is answering the upper end of the sealing neck of magnetic piston with the airtight shrouding of mistake coordinates;

The airtight shrouding of described mistake is dull and stereotyped, and the part that below dull and stereotyped, the intermediate portion of one side coordinates with annular sealing surface is sealing surface, and the part beyond dull and stereotyped sealing surface coordinates with annular sealing surface has passing hole, and passing hole is used for allowing gas pass through;

Described restriction orifice is the plate having air passing hole, and the anchor ring being embedded in spacing hole is adjacent to the base ring face of spacing hole; Air passing hole is used for allowing rock gas pass through;

Described ball sealer is spherosome or oval ball, and the periphery of spherosome or oval ball is sphere, and sphere is sealing surface; Self gravitation by ball sealer when the sphere of ball sealer and inner conical surface seal presses down and seals inner conical surface;

Described closed hole is circular hole, and above the inlet hole in the sealing neck of the lower end in pump gas shell, the rounded face of circular port holds inner headed face or the internal conical surface of seal plate, and the annular bottom surface of the circular hole of closed hole is sealing surface;

Described seal plate is circular flat board, and below dull and stereotyped, one side is sealing surface, and sealing surface coordinates with the closed hole in the sealing neck of pump gas shell lower end;

Described restriction cap is calotte, and the crown of calotte part has the air passing hole allowing gas pass through, and the hatband partial fixing of calotte can limit the distance that the seal plate of installing in sealing neck is moved on sealing neck;

Described field controller controls the controller that generates an electromagnetic field of electromagnetic coil, control time and the time length generated an electromagnetic field that electromagnetic field produces and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time;

Described suction tude connects the inlet hole of pump gas shell and the hollow tubular being connected the pipeline exporting rock gas in gas well;

Described inlet hole be in rock gas enters in pump gas shell extrusion chamber through via hole, at the lower part in the center portion of sealing neck; When not installing seal plate in closed hole, the closed hole on the sealing neck of protecting crust lower end communicates with inlet hole;

In air-inlet cavity, lay in rock gas, in extrusion chamber, extrude rock gas and produce air pressure; When entering rock gas in extrusion chamber, air-inlet cavity communicates with extrusion chamber; When discharging rock gas in extrusion chamber, air-inlet cavity is by ball sealer and answer the internal taper hole in magnetic piston to seal and disconnect the gas-entered passageway entering extrusion chamber;

Described safety extracting rock gas environmental protection equipment in the process of taking out pressure rock gas, control into rock gas passage and go out rock gas passage one-way check valve in there is no return spring; When air-inlet cavity enters rock gas, the suction of answering magnetic piston stroking upward to produce opens the sealing of the closed hole in the sealing neck of the lower end in seal plate and pump gas shell and the passage opened into rock gas, the airtight shrouding of mistake being arranged on the sealing neck upper end of answering on magnetic piston automatic decline return and close the passage entering rock gas entered in extrusion chamber and seal under the effect of self gravitation; When extrusion chamber enters rock gas, the ball sealer being arranged on the internal taper hole of gas outlet valve utilizes the gravity of self to make ball sealer decline return and the passage of closing the extrusion rock gas on gas outlet valve seals automatically, answers magnetic descent of piston and makes to produce pressure in air-inlet cavity and promote to be arranged on to answer the up passage entering rock gas entered in extrusion chamber of then opening of the airtight shrouding of mistake of the sealing neck upper end of magnetic piston; When extrusion chamber is given vent to anger, under the effect of outlet pressure, promote ball sealer on the internal taper hole of gas outlet valve up and open the passage of giving vent to anger of gas outlet valve, answer magnetic descent of piston and make in air-inlet cavity, to produce pressure and promote to be arranged on to answer the up passage entering rock gas entered in extrusion chamber of then opening of the airtight shrouding of mistake of the sealing neck upper end of magnetic piston;

During use, the pipeline that the inlet end of the suction tude of safety extracting rock gas environmental protection equipment and the rock gas in gas well export is connected; Connect the power-on circuit of circuit switch and the field controller be connected with insulated electric conductor, the power-on circuit that field controller connects electromagnetic coil generates an electromagnetic field; The attraction force that electromagnetic field produces pulls the pressure of answering magnetic piston overpowers to promote spring to move up, when answering magnetic piston to start up, be arranged on and answer the airtight shrouding of mistake of the sealing neck upper end of magnetic piston descending and close the gas-entered passageway that rock gas enters extrusion chamber under the effect of the gravity of self; When answering magnetic piston stroking upward, answer the up of magnetic piston and make the rock gas in extrusion chamber create pressure, having the rock gas of pressure to enter into internal taper hole in gas outlet valve from the endoporus of the sealed end of gas outlet valve lower end, to promote ball sealer up and open the sealing channel of gas outlet valve, makes the rock gas in extrusion chamber after gas outlet valve, enter into the pipeline of transport gas or the container containing of transport natural gas; Answer magnetic piston when up, magnetic piston is answered also to make to create pull of vacuum in air-inlet cavity, pull of vacuum is inhaled motive sealing flat board and seal plate and the sealing surface of closed hole is separated, rock gas enters into closed hole from suction tude through inlet hole, then the air passing hole on restriction cap enters in the air-inlet cavity of answering below magnetic piston in pump gas shell;

Answer magnetic piston stroking upward move to compression promote the compression stage of spring spacing time, the power-on circuit of field controller cutoff solenoid, electromagnetic field disappears, and answers magnetic piston descending under the promotion promoting spring; When answering magnetic piston to start descending, the seal plate of installing in the sealing neck of pump gas shell lower end closes the gas-entered passageway entering air-inlet cavity under the effect of self gravitation, ball sealer in gas outlet valve descending return and seal the inner conical surface of gas outlet valve under the effect of the gravity of self, has cut off the outlet passageway of extrusion chamber; Answer magnetic piston when descending, the rock gas of answering magnetic piston to promote to enter in air-inlet cavity and make rock gas produce internal pressure, have the rock gas of pressure upwards wash annular sealing surface and the sealing of crossing airtight shrouding open from the upper end of answering the vent of magnetic piston to enter into sealing neck and continued up after airtight shrouding be shifted, through annular divide air drain, enter in extrusion chamber after the passing hole on airtight shrouding and the air passing hole on restriction orifice;

2. safety extracting rock gas environmental protection equipment according to claim 1, it is characterized in that: in order to enable to answer the rock gas in the extrusion chamber in magnetic piston driving pump gas shell to enter gas outlet valve, adopting and promoting spring and answer the rock gas in magnetic descent of piston compress inlet air chamber to enter power in extrusion chamber as promoting.

3. safety extracting rock gas environmental protection equipment according to claim 1, is characterized in that: keep shape in order to ensure protecting crust to protect electromagnetic coil and be not easy distortion, the cavity of protecting crust manufactures the skeleton having support.

4. safety extracting rock gas environmental protection equipment according to claim 1, is characterized in that: in order to ensure that safety extracting rock gas environmental protection equipment can normally work, and adopts field controller to control connection and the cut-out of the connecting circuit of electromagnetic coil.

5. safety extracting rock gas environmental protection equipment according to claim 1, it is characterized in that: the compact structure of described safety extracting rock gas environmental protection equipment, vibrate little, powerful, utilization rate of electrical are high, the efficiency extracting rock gas is high, is suitable for extracting the rock gas in gas well; The market prospects of industrialization are good, commercial value is high, manufacture and use all very convenient.

6. a manufacture method for safety extracting rock gas environmental protection equipment, is characterized in that: during fabrication, the material of a type in protecting crust employing metal, plastics, nylon, glass fibre reinforced plastics or the composite material manufacture of several types; Hollow valve body and pump gas shell adopt the material of a type in metal, plastics, nylon and glass fibre reinforced plastics or the composite material manufacture of several types; The material of a type in ball sealer employing metal, plastics, nylon and rubber or the composite material manufacture of several types; Seal plate and the material of a type crossed in the employing of airtight shrouding metal, plastics, nylon and glass fibre reinforced plastics or the composite material manufacture of several types; Magnetic piston is answered to adopt the material manufacture of the hard to bear magnetic field suction of energy;

Protecting crust creates the hollow cavity of annular, and hollow cavity has string holes, and string holes creates the hole allowing insulated electric conductor pass; Electromagnetic coil and field controller are installed in hollow cavity; The inner of the annular housing of hollow cavity is fixed on pump gas shell;

Conveniently assemble, during fabrication, after protecting crust is divided into two-part manufacture from annular position, recombinant together for protecting crust;

The inner chamber of pump gas shell creates columniform cavity, and the periphery of columniform cavity creates smooth curved surface; Upper end on the center line of inner chamber manufacture have through pump gas shell center hole, lower end manufactures has inlet hole to pass pump gas shell; The middle part of the lower end in pump gas shell manufactures sealing neck protruding upward, the inside of sealing neck upper part creates closed hole, lower part creates inlet hole, closed hole communicates with inlet hole, and closed hole simultaneously coordinates with below seal plate;

Gas outlet valve creates hollow valve body and ball sealer two-part, hollow valve body creates hollow tubular, internal taper hole is manufactured on middle part or the middle and lower part of the inner chamber of hollow tubular, and the internal diameter that the internal diameter that the upper part of the internal taper hole in hollow tubular manufactures is large, lower part manufactures is little; The lower end of hollow valve body manufactures return-air sealed end, the lower end surface of return-air sealed end is manufactured on the lower end of hollow valve body, upper-end surface creates internal taper hole, the large end of internal taper hole communicates with the upper end of gas outlet valve, small end communicates with the lower end of gas outlet valve, and the inner conical surface of internal taper hole is provided with ball sealer; Described ball sealer creates spherosome or oval ball, and the periphery of spherosome or oval ball creates sealing surface, and sealing surface creates sphere; Self gravitation by ball sealer when the sphere of ball sealer and inner conical surface seal presses down and seals inner conical surface; Described internal taper hole creates the circular hole of tapering, the face of circular hole creates inner conical surface, can inner conical surface be sealed under the effect of the gravity of ball sealer self, the passage of the ball face sealing of inner conical surface and ball sealer when having suction on ball sealer, can be opened by suction; Air pressure above ball sealer is larger, and the gluing, sealing effect of ball sealer and inner conical surface is better; The sealing of inner conical surface and ball sealer can be opened when being with the rock gas of pressure from the endoporus of hollow valve body lower end and form passage;

For the ease of pump gas shell processing and be convenient to accessory to load in pump gas shell, described pump gas shell create segmentation processing manufacture after assemblying body; The upper end of the circular cylindrical cavity part in pump gas shell is divided into two sections of manufactures, the main body that the upper part of segmentation place creates pump cover, lower part creates pump gas shell, center hole is manufactured on pump cover, inlet hole is manufactured on the middle part of the main body lower end of pump gas shell, and being combined into after the main body after pump cover and pump gas shell manufactures is a composite entity; Or, the lower end of the circular cylindrical cavity part in pump gas shell is divided into two sections of manufactures, the main body that the lower part of segmentation place creates pump cover, upper part creates pump gas shell, inlet hole is manufactured on the middle part of pump cover, center hole is manufactured on the middle part of the upper end of the main body of pump gas shell, and being combined into after the main body of pump cover and pump gas shell manufactures is a composite entity;

Answer magnetic piston to create columniform iron core, the position of the center line of columniform iron core manufactures limited location hole, point compression, vent and receiving bore; The upper end of columniform iron core manufactures limited location hole, and manufacturing below spacing hole has a point compression, and manufacturing below the middle part of point compression has vent, and manufacturing below vent has receiving bore; Divide the inner ring of compression to create sealing neck, the upper end portion of sealing neck creates annular sealing surface, and the upper-end surface of sealing neck creates the upper end of the periphery lower than point compression; The annular sealing surface of upper end sealing neck was not installed airtight shrouding and crossed airtight shrouding when seal with annular sealing surface, vent with answer the receiving bore of magnetic piston and divide a compression and communicate; The lower end of columniform iron core manufactures the receiving bore of oriented upper depression; The periphery of columniform iron core creates smooth periphery, and smooth periphery manufactures the annular groove having depression, and annular groove is embedded with seal ring; Periphery coordinates with the inner chamber of pump gas shell can the inner chamber of canned pump gas shell, and can slide in the inner chamber of pump gas shell; Described spacing hole creates circular hole, and the ring surface of circular hole creates inlays restriction orifice stationary plane, and the annular bottom surface of circular hole creates the face that restrict orifice plate inlays the degree of depth; A described point compression creates two sections, and the upper part of sealing neck creates circular hole, and the exterior portion of sealing neck creates the groove of ring, and the periphery of the periphery of circular hole and the groove of ring creates one, and circular hole communicates with vent; Described vent creates the circular hole communicated with receiving bore and point compression; Described receiving bore creates the circular hole upwards caved in, and communicates with vent;

Described annular sealing surface creates the smooth sealing surface of ring, is manufactured on and answers the upper end of the sealing neck of magnetic piston to coordinate with the sealing surface crossing airtight shrouding;

The airtight shrouding of described mistake creates flat board, the part that below dull and stereotyped, the intermediate portion of one side coordinates with annular sealing surface creates sealing surface, in part beyond dull and stereotyped sealing surface coordinates with annular sealing surface, manufacture has passing hole, and passing hole is used for allowing gas pass through;

Restriction orifice creates the plate of air passing hole, and the anchor ring being embedded in spacing hole is adjacent to the base ring face of spacing hole; Air passing hole creates the hole allowing rock gas pass through;

Closed hole creates circular hole, is manufactured on above the inlet hole in the sealing neck of the lower end in pump gas shell, and the rounded face of closed hole creates the inner headed face or internal conical surface that hold seal plate, and the annular bottom surface of the circular hole of closed hole creates sealing surface;

Seal plate creates circular flat board, and below dull and stereotyped, one side creates sealing surface, and sealing surface coordinates with the closed hole in the sealing neck of pump gas shell lower end;

Restriction cap creates calotte, and the crown of calotte part manufactures the air passing hole allowing gas pass through, and the hatband partial fixing of calotte can limit the distance that the seal plate of installing in sealing neck is moved on sealing neck;

Field controller creates and controls the controller that generates an electromagnetic field of electromagnetic coil, control time that electromagnetic field produces and the time that generates an electromagnetic field length and after generating an electromagnetic field at every turn to the interval time generated an electromagnetic field again for the second time;

Suction tude creates the inlet hole connecting pump gas shell and the hollow tubular being connected the pipeline exporting rock gas in gas well;

Inlet hole create in extrusion chamber that rock gas enters in pump gas shell through via hole, be manufactured on the lower part in the center portion of sealing neck; When not installing seal plate in closed hole, the closed hole on the sealing neck of protecting crust lower end communicates with inlet hole;

In order to ensure that safety extracting rock gas environmental protection equipment can normally work, field controller is adopted to control connection and the cut-out of the connecting circuit of electromagnetic coil;

Keep shape in order to ensure protecting crust to protect electromagnetic coil and be not easy distortion, the cavity of protecting crust manufactures the skeleton having support;

In order to enable to answer the rock gas in the extrusion chamber in magnetic piston driving pump gas shell to enter gas outlet valve, adopting and promoting spring and answer the rock gas in magnetic descent of piston compress inlet air chamber to enter power in extrusion chamber as promoting;

In protecting crust, be provided with electromagnetic coil, electromagnetic coil is fixed on the upper part outside pump gas shell, and protecting crust is fixed on the outside protection electromagnetic coil on the top of pump gas shell; Below the outside of protecting crust, one side is fixed with foot rest, and the lower end of foot rest is lower than the position of the inlet hole of pump gas shell lower end; The circuit connecting electromagnetic coil is connected with field controller, and the circuit of field controller is connected with insulated electric conductor, and field controller is arranged in protecting crust; Seal plate is installed in pump gas shell, crosses airtight shrouding, limits cap, promotes spring, answers magnetic piston, restriction orifice, promote the upper part of spring fitting at the inner chamber of pump gas shell, magnetic piston is answered to be arranged on the lower part of the inner chamber of pump gas shell, promotion spring is pressed in answer the upper end portion of magnetic piston or be pressed in be fixed on and answers on point water confinement plate of magnetic piston upper end, answers magnetic piston can slide up and down in the inner chamber of pump gas shell; Answering the restricted orifice plate of spacing hole internal fixtion of magnetic piston upper end, the annular sealing surface of the sealing neck end in point compression of answering the upper part of magnetic piston was provided with airtight shrouding, cross airtight shrouding can move up and down between annular sealing surface and restriction orifice, the airtight shrouding of mistake can seal with answering the annular sealing surface of magnetic piston to coordinate or open the gas-entered passageway of the extrusion chamber entered in pump gas shell; Be provided with seal plate in closed hole in the sealing neck of the lower end in pump gas shell, restriction cap is fixed on the outside of sealing neck by screw thread or jump ring, and when restriction cap is in the receiving bore of answering the lower end of magnetic piston upwards to cave in, restriction cap and receiving bore have gap; Seal plate coordinates with the closed hole in the sealing neck of pump gas shell lower end and can seal or open the gas-entered passageway of the air-inlet cavity entered in pump gas shell; When answering magnetic piston stroking upward, the inner chamber part of answering the pump gas shell of magnetic piston lower part is air-inlet cavity; When answering magnetic descent of piston, the inner chamber part of answering the pump gas shell of magnetic piston upper part is extrusion chamber; Be fixed with suction tude at the air inlet position of the lower end of pump gas shell, the endoporus of suction tude communicates with inlet hole; Be provided with gas outlet valve in the upper end of pump gas shell, the lower part of gas outlet valve is fixed in the center hole of the overlying one end of pump gas shell; The part that the upper-end surface of pump gas shell is exposed in the upper end of gas outlet valve is connected with the pipeline of transport gas by flexible pipe or hard tube.