CN110145612A - A kind of plug valve with split type plug cored structure - Google Patents

A kind of plug valve with split type plug cored structure Download PDF

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Publication number
CN110145612A
CN110145612A CN201910509289.2A CN201910509289A CN110145612A CN 110145612 A CN110145612 A CN 110145612A CN 201910509289 A CN201910509289 A CN 201910509289A CN 110145612 A CN110145612 A CN 110145612A
Authority
CN
China
Prior art keywords
plug
valve
core
plug core
valve body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910509289.2A
Other languages
Chinese (zh)
Other versions
CN110145612B (en
Inventor
严涛
丁超
果春焕
史可任
王金鹤
郁勇
李伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Shengtai Valve Co Ltd
Original Assignee
Jiangsu Shengtai Valve Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Shengtai Valve Co Ltd filed Critical Jiangsu Shengtai Valve Co Ltd
Priority to CN201910509289.2A priority Critical patent/CN110145612B/en
Priority to CN202010351596.5A priority patent/CN111520483B/en
Publication of CN110145612A publication Critical patent/CN110145612A/en
Application granted granted Critical
Publication of CN110145612B publication Critical patent/CN110145612B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222Shaping of the valve member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • B01D35/046Plug, tap, or cock filters filtering elements mounted in or on a faucet the filtering element being mounted in the faucet plug
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/224Details of bearings for the axis of rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226Shaping or arrangements of the sealing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226Shaping or arrangements of the sealing
    • F16K1/2268Sealing means for the axis of rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209Check valves or pivoted valves
    • F16K27/0218Butterfly valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/60Handles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00Pipe-line systems
    • F17D1/08Pipe-line systems for liquids or viscous products
    • F17D1/16Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
    • F17D1/17Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by mixing with another liquid, i.e. diluting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00Pipe-line systems
    • F17D1/08Pipe-line systems for liquids or viscous products
    • F17D1/16Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
    • F17D1/18Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Of Valves (AREA)

Abstract

The invention discloses a kind of plug valves with split type plug cored structure, including valve body and setting, in the intracorporal plug core of valve, the plug core includes top plug core and lower plug core;The end face that the top plug core is contacted with valve channel offers rotating plate slot, and the rotating plate slot runs through distribution along the end face diameter of the top plug core;The end face that the lower plug core is contacted with valve channel has been provided with traling straight panel, and the traling straight panel is inserted into the rotating plate slot.Traditional integral core is replaced with into split type structure structure, and the open and close of valve body are realized by the traling straight panel on lower plug core, when plug valve because use for a long time leads to serious wear fail when, entire plug valve need not be replaced, only traling straight panel need to be replaced and can be used as the plug valve newly changed by the end cap of body base, the service life for substantially prolonging plug valve improves the service performance of plug valve, reduces production maintenance cost.

Description

A kind of plug valve with split type plug cored structure
Technical field
The present invention relates to a kind of valve, in particular to a kind of plug valve with split type plug cored structure.
Background technique
Plug valve is the rotary valve of closure member or plunger shape, by being rotated by 90 ° on the passway and valve body that make on valve plug Passway communicates or separates, and realizes a kind of valve opened or closed, the shape of its valve plug can be at cylindrical or cone.Rotation Plug valve is a kind of straight-through valve of high-speed switch, and using the cock body of Intermediate Gray through-hole as the valve of opening and closing element, cock body is with valve rod Rotation, to realize switching motion.
And plug valve is sealed mainly by directly contacting between the metallic plug body and body cavity of finishing, is easily worn, Can not effectively seal after cock body abrasion with traditional font inner cavity will lead to entire cock defective valve, not be available.Shorten cock The service life of valve increases production maintenance cost.
Summary of the invention
Regarding the issue above, the present invention provides a kind of plug valve with split type plug cored structure, will fill in core It is arranged to split type structure, can directly replace the part being worn after plug valve sealing performance reduces can be used continuously.
To achieve the above object, the method that the present invention uses is: a kind of plug valve with split type plug cored structure, including In the intracorporal plug core of valve, the plug core includes top plug core and lower plug core for valve body and setting;The top plug core is contacted with valve channel End face offer rotating plate slot, the rotating plate slot along the top plug core end face diameter through distribution;The lower plug core with The end face of valve channel contact has been provided with traling straight panel, and the traling straight panel is inserted into the rotating plate slot.
As an improvement of the present invention, the top plug core, lower plug core are cylinder, the top plug core and lower plug core it Between distance it is equal with the intracorporal channel diameter of the valve.
As an improvement of the present invention, the section of the rotating plate slot is in isosceles trapezoid shape, the slot of the rotating plate slot Mouth width degree is greater than interior groove width.
As an improvement of the present invention, the rotating plate slot is located on the end face that the top plug core is contacted with valve channel Two sides be additionally provided with opposite clamping plate, the distance between described clamping plate is the thickness of the traling straight panel.
As an improvement of the present invention, it is also provided on the end face that the top plug core is contacted with valve channel for grafting Be set to it is lower plug core on filter plate rectangular slot, the rectangular slot along the top plug core end face diameter through distribution and It is perpendicular between the rotating plate slot.
As an improvement of the present invention, the filter plate is fixed in the end face that the lower plug core is contacted with valve channel On, the filter plate is equipped with duplicate two pieces and is symmetrically distributed in the two sides of the traling straight panel.
As an improvement of the present invention, the top plug core is provided with spin-block, the spin-block far from one end of valve channel It is connect by the first pin shaft with the handle being located at outside valve body.
As an improvement of the present invention, the lower plug core is provided with locating piece far from one end of valve channel, described fixed Position block is connect by the second pin shaft with bottom cover, and the bottom cover is connect with the valve body screw thread.
As an improvement of the present invention, sealing ring is arranged between the top plug core, lower plug core and valve body.
As an improvement of the present invention, one end of the water inlet of the valve body is provided with anti-block apparatus, the anti-block apparatus Include:
L shape support plate, a line are fixed at the upper of the valve body by screw, the L shape support plate and valve body (1) The end face of contact is arc surface and fits closely with valve outer wall;
Air pump is fixed in the another a line of the L shape support plate, and the gas outlet of the air pump is arranged with gas nozzle seat Set;
Gas nozzle cover for seat is embedded in the inner cavity of the gas nozzle cover for seat, and going out air pump is additionally provided with inside the gas nozzle cover for seat The ventilation pipe that port is connected to gas nozzle cover for seat;
Gas blow pipe, one end and gas nozzle cover for seat are tightly connected, in the circular through hole and valve body that the other end is opened up by valve body Chamber connection;
Positioning sleeve is sealed, is set on the gas blow pipe and is placed in circular through hole, connect gas blow pipe with valve seal;
Splicing sleeve is heated, is connected in series with the gas blow pipe, the heating splicing sleeve is equipped with several ring resistance silks.
The utility model has the advantages that
1. a kind of plug valve with split type plug cored structure of the present invention, traditional integral core is replaced with point Body formula structure structure, and by the open and close of the traling straight panel realization valve body on lower plug core, when plug valve because making for a long time With lead to serious wear and when failing, it is not necessary to replace entire plug valve, only need to by the end cap of body base by traling straight panel more Changing can use as the plug valve newly changed, substantially prolong the service life of plug valve, improve the usability of plug valve Can, reduce production maintenance cost;
2. rotating plate slot is set as to the structure of isosceles trapezoid in order to guarantee the leakproofness between traling straight panel and top plug core, In this way when traling straight panel is inserted into rotating plate slot, traling straight panel is more up more close to the cell wall of slot, leakproofness Better.
3. in order to avoid traling straight panel deforms under excessive hoisting capacity effect at work, it is ensured that traling straight panel does not occur Clamping plate is arranged on top plug core to be clamped in traling straight panel two sides in deformation displacement.
Detailed description of the invention
Fig. 1 is sectional front view of the invention;
Fig. 2 is structural schematic diagram of the invention;
Fig. 3 is the structural schematic diagram at the present invention plug other visual angle of core;
Fig. 4 is the structural schematic diagram of top plug core of the present invention;
Fig. 5 is the front view of top plug core of the present invention;
Fig. 6 is the bottom view of top plug core of the present invention;
Fig. 7 is enlarged diagram of the Fig. 1 at A;
Fig. 8 is enlarged diagram of the Fig. 1 at B.
Each component in figure are as follows:
1- valve body, 2- top plug core fill in core under 3-, 4- rotating plate slot, 5- traling straight panel, 6- clamping plate, 7- filter plate, and 8- is rectangular Slot, 9- spin-block, the first pin shaft of 10-, 11- handle, 12- locating piece, the second pin shaft of 13-, 14- bottom cover, 15- sealing ring, 16-L Shape support plate, 17- air pump, 18- gas nozzle cover for seat, 19- glue blowing nozzle, 20- gas blow pipe, 21- circular through hole, 22- seal positioning sleeve, 23- heats splicing sleeve.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.
The component for the embodiment of the present invention for usually describing and showing in attached drawing here can be with a variety of different configurations To arrange and design.Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below and is wanted The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.
As described in Figure 1, the present invention provides a kind of plug valve with split type plug cored structure, including valve body 1 and setting exist The intracorporal plug core of valve, in Fig. 2, Fig. 3, the plug core includes top plug core 2 and lower plug core 3;The top plug core 2 connects with valve channel The end face of touching offers rotating plate slot 4, and the rotating plate slot 4 runs through distribution along the end face diameter of the top plug core 2;The lower plug The end face that core 3 is contacted with valve channel has been provided with traling straight panel 5, and the traling straight panel 5 is plugged in the rotating plate slot 4.
Traditional plug valve is usually to open up the through-hole communicated with pipeline among cylindrical or cone cock, works as needs When opening plug valve, rotating handle makes to fill in the through-hole just pipeline formation flow channel in communication on core;It is revolved when needing to close When plug valve, rotating handle is rotated by 90 ° core is filled in, and fluid media (medium) can not pass through plug valve.This traditional plug valve is filled in Just failure is not available when core abrasion can not form sealing state with valve body.
Plug valve provided by the invention is then that will fill in core to be divided into two parts up and down, and traling straight panel is arranged between, When needing to open plug valve, by rotatable handle, the direction that the rotation of traling straight panel is moved as flow of fluid medium is parallel, in this way It is flowed between the channel that fluid media (medium) will be formed between traling straight panel two sides and valve body;When needing cut-out tap valve, rotation Change hands handle, flow traling straight panel and fluid media (medium) and support plumbness between direction, such traling straight panel be close to valve interior wall with The closed space of formation, flow fluid media (medium) can not.When can not be formed between traling straight panel serious wear and valve interior wall Effectively after sealing, plug valve be can be used continuously after only needing to change traling straight panel.
In one embodiment of the invention, the top plug core 2, lower plug core 3 are cylinder, and the top plug core 2 is under It is equal with the channel diameter in the valve body 1 to fill in the distance between core 3.Cylindrical split type plug cored structure is simple and rotation can It is good by property.And in order to make fluid media (medium) there is no a projective structure when flowing through plug core, between the top plug core 2 and lower plug core 3 away from It is equal from the channel diameter in the valve body 1, make entire valve channel in smooth structure.
In one embodiment of the invention, the section of the rotating plate slot 4 is in isosceles trapezoid shape, the rotating plate slot 4 Width of rebate be greater than interior groove width.
When traling straight panel to be plugged in rotating plate slot, traling straight panel is closer to inside groove, due to depositing for inclined contact surface It can be more tightly connected between traling straight panel and upper valve core, avoid flowing out at gap of the fluid media (medium) through rotating plate slot, cause whole A cock defective valve.
In one embodiment of the invention, the rotating plate is located on the end face that the top plug core 2 is contacted with valve channel The two sides of slot 4 are additionally provided with opposite clamping plate 6, and the distance between described clamping plate 6 is the thickness of the traling straight panel 5.
During the open and close of plug valve, turn when traling straight panel bears the hydraulic and rotation from fluid media (medium) Square, prolonged stress will lead to traling straight panel and occur bending and deformation or be displaced to can not be formed between valve body effective close Envelope, therefore opposite clamping plate is set in traling straight panel two sides and clamps traling straight panel, suffered partial pressure is shared for it.
In one embodiment of the invention, it is also provided with and is used on the end face that the top plug core 3 is contacted with valve channel Grafting is set to the rectangular slot 8 of the filter plate 7 on lower plug core 3, end face diameter of the rectangular slot 8 along the top plug core 2 It is through distribution and perpendicular between the rotating plate slot 4.The filter plate 7 is fixed in the lower plug core 3 and connects with valve channel On the end face of touching, the filter plate 7 is equipped with duplicate two pieces and is symmetrically distributed in the two sides of the traling straight panel 5.
The effect of filter plate is to avoid impurity blocking pipeline therein for being filtered effect to the liquid flowed through.It crosses It is filled on core under filter plate being fixed in vertical with traling straight panel, and the position that contacts with traling straight panel of filter plate is seamless deposits ?.
In one embodiment of the invention, the top plug core 2 is provided with spin-block 9 far from one end of valve channel, described Spin-block 9 is connect by the first pin shaft 10 with the handle 11 being located at outside valve body 1.
In the operation for needing to open or close plug valve, rotational handle, handle drives top plug core through spin-block again Rotation, and the traling straight panel being plugged on top plug core will be rotated with top plug core.When traling straight panel and fluid flow direction are hung down When straight, sealing state is formed between traling straight panel and valve interior wall, plug valve is closed at this time;When traling straight panel and fluid flowing side To it is parallel when, fluid through being flowed through between traling straight panel two sides, at this time plug valve open.
In one embodiment of the invention, the lower plug core 3 is provided with locating piece 12, institute far from one end of valve channel It states locating piece 12 to connect by the second pin shaft 13 with bottom cover 14, the bottom cover 14 is threadedly coupled with the valve body 1.
When traling straight panel serious wear needs replacing, bottom cover is disassembled from valve body, then by lower plug core from valve body It inside takes out, then the bottom spool more renewed or new traling straight panel are connected bottom spool by the cooperation of the second pin shaft and locating piece It connects on bottom cover, then after the corresponding position between bottom spool and upper valve core is had good positioning, bottom cover is threaded on valve body, it is complete At process.
In one embodiment of the invention, in order to further ensure that the leakproofness of valve body, the top plug core 2, lower plug core 3 Sealing ring 15 is arranged between valve body 1.
In one embodiment of the invention, one end of the water inlet of the valve body 1 is provided with anti-block apparatus, the anti-blocking dress It sets and includes:
L shape support plate 16, a line are fixed at the upper of the valve body 1, the L shape support plate 16 and valve by screw The end face that body 1 contacts is arc surface and fits closely with 1 outer wall of valve body;
Air pump 17 is fixed in the another a line of the L shape support plate 16, and the gas outlet of the air pump 17 is arranged with Gas nozzle cover for seat 18;
Gas nozzle cover for seat 19 is embedded in the inner cavity of the gas nozzle cover for seat 18, is additionally provided with inside the gas nozzle cover for seat 18 by gas The ventilation pipe that the gas outlet of pump 17 is connected to gas nozzle cover for seat 19;
Gas blow pipe 20, one end and gas nozzle cover for seat 19 are tightly connected, and the other end passes through the circular through hole 21 and valve that valve body 1 opens up The inner cavity of body 1 is connected to;
Positioning sleeve 22 is sealed, is set on the gas blow pipe 20 and is placed in circular through hole 21, make gas blow pipe 20 and valve body 1 It is tightly connected;
Splicing sleeve 22 is heated, is connected in series with the gas blow pipe 20, the heating splicing sleeve 22 is equipped with several annular electros Hinder silk.
Plug valve mainly realizes the valve of opening and closing in fluid pipeline in the duct, if the liquid in transmission pipeline is viscous Consistency is relatively high, since the structure member in plug valve is complex: split type spool, upper valve core and bottom spool and valve body it Between gap, traling straight panel and the obstruction of filter plate etc., will lead to liquid and circulate unsmooth or even occur stifled in plug valve Plug.Therefore anti-block apparatus is set in one end of the water inlet of valve body, this anti-block apparatus is mainly to fill toward one end of the water inlet of valve body Enter suitable high-temperature gas, high-temperature gas is filled with before liquid enters plug valve center, one, which carrys out gas, to make liquid in unit The throughput that plug valve is flowed through in time is reduced, because circulation total in the plug valve unit time is fixed, and is always circulated A part of amount is gas, therefore the unit time circulation of liquid is also accordingly reduced;In addition be filled with gas can make valve body into One end that the manifold pressure of water one end is significantly larger than discharged always also ensures that liquid is more smooth by improving pressure difference in this way Pass through plug valve;And high-temperature gas per se with heat the solubility of liquid substance in vivo can be improved, can also be one Determine the molten concentration of sustained release liquid in degree.Air outlet valve can be opened up on the pipeline in plug valve downstream, and the gas being filled with by air pump is discharged Body improves out the liquid quality of liquid.
The present embodiment may insure plug valve be used in the liquid transmission of high viscosity also can smoothly without hindrance circulation, Avoid plug valve blockage phenomenon in use, it is ensured that normal, the stable operation of entire circulation duct improves operation Efficiency.
A kind of plug valve with split type plug cored structure provided by the invention, replaces with fission for traditional integral core Formula structure structure, and by the open and close of the traling straight panel realization valve body on lower plug core, when plug valve because long-time uses When leading to serious wear and failing, it is not necessary to replace entire plug valve, need to only be replaced traling straight panel by the end cap of body base Falling can use as the plug valve newly changed, substantially prolong the service life of plug valve, improve the service performance of plug valve, Reduce production maintenance cost.
The above described is only a preferred embodiment of the present invention, being not the limit for making any other form to the present invention System, and made any modification or equivalent variations according to the technical essence of the invention, still fall within present invention model claimed It encloses.

Claims (10)

1. a kind of plug valve with split type plug cored structure, including valve body (1) and setting, in the intracorporal plug core of valve, feature exists In:
The plug core includes top plug core (2) He Xiasai core (3);
The end face that the top plug core (2) contacts with valve channel offers rotating plate slot (4), and the rotating plate slot (4) is along described The end face diameter of top plug core (2) is through distribution;
The end face that lower plug core (3) contacts with valve channel has been provided with traling straight panel (5), traling straight panel (5) grafting In the rotating plate slot (4).
2. a kind of plug valve with split type plug cored structure according to claim 1, it is characterised in that: the top plug core (2), lower plug core (3) is cylinder, the distance between the top plug core (2) and lower plug core (3) and leading in the valve body (1) Road diameter is equal.
3. a kind of plug valve with split type plug cored structure according to claim 1, it is characterised in that: the rotating plate is inserted The section of slot (4) is in isosceles trapezoid shape, and the width of rebate of the rotating plate slot (4) is greater than interior groove width.
4. a kind of plug valve with split type plug cored structure according to claim 1, it is characterised in that: the top plug core (2) two sides on the end face contacted with valve channel positioned at the rotating plate slot (4) are additionally provided with opposite clamping plate (6), described The distance between clamping plate (6) is the thickness of the traling straight panel (5).
5. a kind of plug valve with split type plug cored structure according to claim 1, it is characterised in that: the top plug core (2) the rectangular of the filter plate (7) being set on lower plug core (3) for grafting is also provided on the end face contacted with valve channel to insert Slot (8), the rectangular slot (8) is run through along the end face diameter of the top plug core (2) to be distributed and between the rotating plate slot (4) It is perpendicular.
6. a kind of plug valve with split type plug cored structure according to claim 4, it is characterised in that: the filter plate (7) it is fixed on the end face that lower plug core (3) contacts with valve channel, the filter plate (7) is equipped with duplicate two pieces And it is symmetrically distributed in the two sides of the traling straight panel (5).
7. a kind of plug valve with split type plug cored structure according to claim 1, it is characterised in that: the top plug core (2) one end far from valve channel is provided with spin-block (9), and the spin-block (9) is by the first pin shaft (10) and is located at valve body (1) outside The handle (11) in portion connects.
8. a kind of plug valve with split type plug cored structure according to claim 1, it is characterised in that: the lower plug core (3) one end far from valve channel is provided with locating piece (12), and the locating piece (12) passes through the second pin shaft (13) and bottom cover (14) it connects, the bottom cover (14) is threadedly coupled with the valve body (1).
9. a kind of plug valve with split type plug cored structure according to claim 7, it is characterised in that: the top plug core (2), sealing ring (15) are arranged between lower plug core (3) and valve body (1).
10. a kind of plug valve with split type plug cored structure according to claim 5, it is characterised in that: the valve body (1) one end of water inlet is provided with anti-block apparatus, and the anti-block apparatus includes:
L shape support plate (16), a line are fixed at the upper of the valve body (1) by screw, the L shape support plate (16) with The end face of valve body (1) contact is arc surface and fits closely with valve body (1) outer wall;
Air pump (17) is fixed in the another a line of the L shape support plate (16), and the gas outlet of the air pump (17) is arranged There are gas nozzle cover for seat (18);
Gas nozzle cover for seat (19) is embedded in the inner cavity of the gas nozzle cover for seat (18), be additionally provided with inside the gas nozzle cover for seat (18) by The ventilation pipe that the gas outlet of air pump (17) is connected to gas nozzle cover for seat (19);
Gas blow pipe (20), one end and gas nozzle cover for seat (19) are tightly connected, and the other end passes through the circular through hole (21) that valve body (1) opens up It is connected to the inner cavity of valve body (1);
Seal positioning sleeve (22), be set on the gas blow pipe (20) and be placed in circular through hole (21), make gas blow pipe (20) with Valve body (1) is tightly connected;
It heats splicing sleeve (22), is connected in series with the gas blow pipe (20), the heating splicing sleeve (22) is equipped with several annulars Resistance wire.
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