CN111346574A - TBD tank bottom valve - Google Patents

TBD tank bottom valve Download PDF

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Publication number
CN111346574A
CN111346574A CN202010294522.2A CN202010294522A CN111346574A CN 111346574 A CN111346574 A CN 111346574A CN 202010294522 A CN202010294522 A CN 202010294522A CN 111346574 A CN111346574 A CN 111346574A
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CN
China
Prior art keywords
tbd
valve body
tank bottom
sleeve
bottom valve
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.)
Pending
Application number
CN202010294522.2A
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Chinese (zh)
Inventor
丁恒军
曹平富
朱寿鹏
石星星
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 Trust Valve Co ltd
Original Assignee
Jiangsu Trust 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 Trust Valve Co ltd filed Critical Jiangsu Trust Valve Co ltd
Priority to CN202010294522.2A priority Critical patent/CN111346574A/en
Publication of CN111346574A publication Critical patent/CN111346574A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00Feed or outlet devices; Feed or outlet control devices
    • B01J4/001Feed or outlet devices as such, e.g. feeding tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053Details of the reactor
    • B01J19/0073Sealings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00Feed or outlet devices; Feed or outlet control devices
    • B01J4/008Feed or outlet control devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/087Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
    • 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
    • F16K1/02Lift 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 screw-spindle
    • 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
    • F16K31/53Mechanical actuating means with toothed gearing
    • F16K31/54Mechanical actuating means with toothed gearing with pinion and rack
    • 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
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008Mechanical means
    • F16K37/0016Mechanical means having a graduated scale

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention relates to the field of tank bottom valves, in particular to a TBD (tunnel boring machine) tank bottom valve, which comprises a driving structure, a transmission structure, a back flushing structure, a TBD tank bottom valve body, a sealing structure, an opening and closing structure, a limiting structure and a linkage structure, wherein the driving structure is arranged on the driving structure; seal structure connects in limit structure, and then when the relatively poor or seal structure of leakproofness between seal structure and the reation kettle damages, carry on spacingly through limit structure to drive structure, make drive structure and the unable work of drive structure, be convenient for judge the leakproofness between seal structure and the reation kettle through whether can drive the drive structure, the effectual reaction solution of having avoided adds the phenomenon that causes the leakage in reation kettle's inside and takes place, make the leakproofness between TBD tank bottoms valve body and the reation kettle more convenient to control, be convenient for through drive structure drive linkage structure, make the back flush structure of linkage drive control TBD tank bottoms valve body open and close, be convenient for simultaneously carry out the back flush to the inside of TBD tank bottoms valve body, make the clearance of TBD tank bottoms valve body convenient and fast more.

Description

TBD tank bottom valve
Technical Field
The invention relates to the field of tank bottom valves, in particular to a TBD (Tunnel boring machine) tank bottom valve.
Background
The tank bottom valve is applied to discharge materials of reaction vessels in the clean industries of pharmacy, biology, fine chemical engineering, food and the like, has the advantages of no dead angle, no residue, no leakage, good sealing performance and the like of discharged materials, is opened, and the valve clack extends into a reaction kettle or a pipeline; the valve body has a large flow passage and good flow capacity; the upper top of the valve core can break the condensate at the bottom of the kettle; the opening stroke is short, and the whole length is short; the stroke is fixed, the length of the valve cannot be changed due to the change of the depth length, and particularly when a single-action pneumatic actuator is adopted, the depth length cannot be limited.
However, traditional TBD tank bottom valve is when installing the bottom at the reation kettle body, be not convenient for control TBD tank bottom valve and the conflict dynamics between the reation kettle body, when the conflict dynamics is too big, cause the bolt smooth silk easily, when not sealed between TBD tank bottom valve and the reation kettle body, continue to use TBD tank bottom valve, cause reaction solution to leak easily, the length of the guide block of TBD tank bottom valve is fixed simultaneously, when the guide block wearing and tearing back, can not continue the port of conflict clearance TBD tank bottom valve, can not seal reation kettle after the butterfly dish damages simultaneously, and then the solution of the inside of the reation kettle of being not convenient for control discharges, be not convenient for clear up the inside of TBD tank bottom valve simultaneously.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a TBD tank bottom valve.
The technical scheme adopted by the invention for solving the technical problems is as follows: a TBD tank bottom valve comprises a driving structure, a transmission structure, a back washing structure, a TBD tank bottom valve body, a sealing structure, an opening and closing structure, a limiting structure and a linkage structure; the bottom end of the TBD tank bottom valve body is provided with the driving structure for driving, the driving structure is connected to the transmission structure, the transmission structure is connected to the opening and closing structure for sealing the TBD tank bottom valve body, and the opening and closing structure is rotatably connected with the TBD tank bottom valve body; the sealing structure for connecting the reaction kettle is arranged at the top end of the TBD tank bottom valve body; the limiting structure used for limiting the transmission structure is arranged in the driving structure, and the sealing structure is connected with the limiting structure; the inside of TBD tank bottom valve body is equipped with be used for cavity sealing and back flush the back flush structure, back flush structure connect in the inside of drive structure the linkage structure, just the transmission structure contradicts in the linkage structure.
Specifically, the drive structure includes runner, actuating lever, accomodates the cover, supports cover, rack, gear and guide rail, support the cover and locate the bottom of TBD tank bottoms valve body, the bottom of supporting the cover is equipped with accomodate the cover, the guide rail is fixed in accomodate the inside of cover, be equipped with sliding connection on the guide rail the rack, the actuating lever through connection in accomodate the cover with the rack, the actuating lever with accomodate and rotate between the cover and connect, the actuating lever with threaded connection between the rack, the actuating lever deviates from the one end of rack is equipped with the runner, the rack with gear engagement, the thickness of gear is greater than the thickness of rack.
Specifically, the transmission structure includes transfer line, instruction piece and transmission ring, the transfer line run through in accomodate the cover with support the cover, the transfer line with support threaded connection between the cover, the bottom of transfer line is equipped with the ring the transmission ring, the tip of transfer line is fixed with the gear, the transfer line deviate from the one end of accomodating the cover be equipped with support cover sliding connection the instruction piece, the transfer line with rotate between the instruction piece and be connected, circumference array is equipped with a plurality of through holes on the transmission ring.
It is specific, it includes dish, valve rod, direction piece, sealing washer, scraper blade and a reset spring to open and close the structure, the one end of valve rod is fixed in the transfer line, the valve rod with rotate between the TBD tank bottoms valve body and sliding connection, the valve rod deviates from the one end of transfer line is equipped with the direction piece with the dish, the direction piece contradict in the dish, the dish is round platform shape structure, be equipped with on the dish with the ring shape that TBD tank bottoms valve body contradicts the sealing washer, the inside of direction piece is equipped with sliding connection the scraper blade, the scraper blade deviates from the one end of direction piece is trapezoidal, the direction piece with be equipped with between the scraper blade a reset spring.
Specifically, seal structure includes sealing ring, holding tank and second trachea, the cross-section that TBD tank bottoms valve body's top was equipped with the tip is the arc the sealing ring, the sealing ring with cup joint between the TBD tank bottoms valve body, the inside of sealing ring is equipped with the annular the holding tank, the tracheal one end of second run through in TBD tank bottoms valve body and with the inside of sealing ring the holding tank switches on.
Specifically, limit structure includes second reset spring, sleeve, slider, third reset spring and fixture block, the sleeve is fixed in accomodate the inside of cover, telescopic inside is equipped with sliding connection's cross-section is the L shape structure the slider, the slider with be equipped with between the sleeve second reset spring, the tracheal other one end of second with the slider with the space that encloses between the sleeve switches on, be equipped with the radian on the slider and connect the fixture block, the fixture block with be equipped with between the slider third reset spring, the transmission ring is located the top of fixture block.
Specifically, linkage structure includes pressurization piece, pressure boost cover and fourth reset spring, semi-annular structure the pressurization cover is fixed in accomodate the cover, the centre of a circle of gear with the centre of a circle of pressurization cover is in same position, semi-annular the pressurization piece with sliding connection between the pressurization cover, fourth reset spring locates the pressurization piece with between the pressurization cover, just the transmission ring contradict in the pressurization piece.
Specifically, the back flush structure includes water pipe, sealing plug, through-hole, sliding sleeve, pressure boost stopper and first trachea, the sealing plug with sliding connection between the TBD tank bottoms valve body, the tip of sealing plug is equipped with the sliding sleeve, sliding sleeve and hollow pressure boost stopper, pressure boost stopper with sliding connection between the sliding sleeve, first tracheal one end is fixed in pressure boost stopper and with pressure boost stopper with hold the cavity between the sliding sleeve and switch on, first tracheal other end with pressure boost piece with hold the cavity between the pressure boost cover and switch on, the sealing plug deviates from the inside of the one end of sliding sleeve is equipped with holds the cavity, be equipped with two on the sealing plug the through-hole, the water pipe is fixed in the sealing plug and with the through-hole switches on.
The invention has the beneficial effects that:
(1) the TBD tank bottom valve has the advantages that the bottom end of the TBD tank bottom valve body is provided with the driving structure for driving, the driving structure is connected with the transmission structure, the transmission structure is connected with the opening and closing structure for sealing the TBD tank bottom valve body, the opening and closing structure is rotatably connected with the TBD tank bottom valve body, the transmission structure is further driven by the driving structure to drive the opening and closing structure to rotatably lift in the TBD tank bottom valve body, the opening and closing of the TBD tank bottom valve body are controlled, the driving structure is arranged to save more labor in operation and has an automatic limiting function, the liquid discharge speed of the TBD tank bottom valve body is further controlled, meanwhile, the end part of the TBD tank bottom valve body is conveniently cleaned through the opening and closing structure, reaction materials are effectively prevented from being bonded in the TBD tank bottom valve body, and the sealing performance between the opening and closing structure and the TBD tank bottom valve body is greatly improved, namely: when the TBD tank bottom valve body needs to be opened and closed, the rotating direction of the rotating wheel is controlled, the rotating wheel rotates to drive the driving rod to rotate, the driving rod rotates to drive the thread driving rack to slide in the guide rail, the screw rod sliding principle is adopted for the driving rod thread driving rack to slide, and the automatic limiting function is further realized, so that the liquid discharge speed of the TBD tank bottom valve body is controlled to be more accurate and stable, the operation is more labor-saving by matching with the use of the rotating wheel, when the rack driving gear rotates, the gear drives the driving rod to be in threaded connection with the supporting sleeve, the driving rod drives the valve rod to spirally lift, the valve rod spirally lifts to further drive the distance between the circular truncated cone-shaped disc and the TBD tank bottom valve body to change, meanwhile, the gear and the rack slide, the driving rod is in threaded connection with the supporting sleeve, the indicating block on the driving rod slides with the supporting sleeve, and the flow inside the TBD tank bottom end valve body, and then make the regulation of flow convenient and fast more, the setting of guide plate and then be convenient for support the dish, it is more even to make the dish atress, drive tip when the guide plate pivoted and slide between scraper blade and the TBD tank bottoms valve body for trapezium structure, take out the solution that bonds on TBD tank bottoms valve body, avoided the solution to bond on TBD tank bottoms valve body, make the leakproofness between dish and the TBD tank bottoms valve body better, the tip of scraper blade has the guide effect for trapezium simultaneously, be convenient for slide at the different positions of the inside of TBD tank bottoms valve body, be equipped with first reset spring between scraper blade and the guide plate, and then make the tip wearing and tearing back of scraper blade, first reset spring conflict scraper blade, make the scraper blade conflict D tank bottoms valve body all the time, and then make the clearance effect to TBD tank bottoms valve body better.
(2) According to the TBD tank bottom valve, the sealing structure for connecting the reaction kettle is arranged at the top end of the TBD tank bottom valve body; a inside for being used for carrying out spacing limit structure to drive structure and locating drive structure, and seal structure connects in limit structure, and then when the relatively poor or seal structure of leakproofness between seal structure and the reation kettle damages, carry on spacingly to drive structure through limit structure, make drive structure and the unable work of drive structure, and then be convenient for judge the leakproofness between seal structure and the reation kettle through whether can drive the drive structure, the effectual reaction solution of having avoided adds the phenomenon that causes the leakage in reation kettle's inside and takes place, and then make the leakproofness between TBD tank bottom valve body and the reation kettle more be convenient for control, promptly: the TBD tank bottom valve body is connected with the reaction kettle through a bolt, so that the TBD tank bottom valve body is matched with the reaction kettle to collide with the reaction kettle to extrude the sealing ring, the top surface of the sealing ring is arc-shaped, the contact area between the sealing ring and the reaction kettle is further increased, the sealing performance between the reaction kettle and the TBD tank bottom valve body is better, the sealing ring is extruded and deformed, the space of the accommodating tank is reduced, gas in the accommodating tank enters the space between the sleeve and the sliding block through a second gas pipe, the sliding between the sliding block and the sleeve is driven through gas pressure, a second reset spring is extended, the clamping block cannot contact with the transmission ring when the transmission ring is at the bottom end, when the sealing ring is damaged, or the collision force of the TBD tank bottom valve body to the sealing ring is insufficient, the second reset spring contracts to drive the sliding block to slide towards the second reset spring, the clamping block at the end part of the sliding, and then make gear and rack unable rotation, and then unable drive runner, and then be convenient for through whether can rotate whether sealed between the audio-visual reaction TBD tank bottom valve body of runner and the reation kettle, the effectual reaction solution that has avoided adds the phenomenon that causes the leakage in reation kettle's inside and takes place, and then make the leakproofness between TBD tank bottom valve body and the reation kettle more be convenient for control.
(3) According to the TBD tank bottom valve, the back washing structure for cavity sealing and back washing is arranged in the TBD tank bottom valve body, the back washing structure is connected with the linkage structure in the driving structure, the transmission structure is abutted against the linkage structure, so that the linkage structure is driven by the transmission structure conveniently, the linkage structure drives the back washing structure to control the opening and closing of the TBD tank bottom valve body, meanwhile, the back washing is conveniently carried out on the inside of the TBD tank bottom valve body, and the TBD tank bottom valve body is more conveniently and quickly cleaned, namely: when the end of the disc departing from the TBD tank bottom valve body slides, the interference force between the transmission ring and the pressurizing block is reduced, the fourth reset spring extends, the fourth reset spring drives the pressurizing block and the pressurizing sleeve to slide, so that the accommodating cavity between the pressurizing block and the pressurizing sleeve is enlarged, the gas in the accommodating cavity between the sliding sleeve and the pressurizing plug enters the pressurizing sleeve through the first gas pipe, the sliding sleeve and the pressurizing plug slide under the action of atmospheric pressure, so that the sealing plug and the TBD tank bottom valve body do not interfere and are sealed, when the transmission ring slides towards the pressurizing block, the transmission ring and the pressurizing block abut, the fourth reset spring compresses, so that the accommodating cavity between the pressurizing block and the pressurizing sleeve is reduced, the gas enters the accommodating cavity between the sliding sleeve and the pressurizing plug through the first gas pipe, and then the sliding sleeve and the pressurizing plug slide under the action of atmospheric pressure, so that the sealing plug and the TBD tank bottom valve body are in sealing interference, the tip of sealing plug is equipped with and holds the cavity, the tip that makes the sealing plug is deformable, make the leakproofness between sealing plug and the TBD tank bottoms valve body better, and then the cooperation dish carries out double-deck sealedly to TBD tank bottoms valve body, make the dish damage back sealing plug can continue to use, after dish and TBD tank bottoms valve body support, the sealing plug is sealed completely to TBD tank bottoms valve body, open the water pipe that is used for the drainage and be used for the high pressure to wash, high-pressure rivers wash the inside at TBD tank bottoms valve body through one of them through-hole, then discharge to the water pipe that is used for the drainage from another through-hole, and then be convenient for clean the inside to TBD tank bottoms valve body after closing TBD tank bottoms valve body at every turn, the inside bonding of material at TBD tank bottoms valve body has been avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of the overall structure of a TBD tank bottom valve provided by the invention;
FIG. 2 is a schematic view of a connection structure between the transmission structure and the opening/closing structure shown in FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic structural diagram of the opening and closing structure shown in FIG. 3;
FIG. 5 is an enlarged view of the portion B shown in FIG. 2;
FIG. 6 is a schematic view of the connection structure of the backwash structure shown in FIG. 5 with a TBD tank bottom valve body;
FIG. 7 is an enlarged view of section C of FIG. 2;
FIG. 8 is a schematic structural view of the storage sleeve and the linkage structure shown in FIG. 7;
fig. 9 is a schematic view of the connection structure of the driving ring and the linkage structure shown in fig. 7.
In the figure: 1. a driving structure 11, a rotating wheel 12, a driving rod 13, a containing sleeve 14, a supporting sleeve 15, a rack 16, a gear 17, a guide rail 2, a transmission structure 21, a transmission rod 22, an indicating block 23, a transmission ring 3, a back washing structure 31, a water pipe 32, a sealing plug 33, a through hole 34, a sliding sleeve 35, a pressurizing plug 36, a first air pipe 4, a TBD tank bottom valve body 5, sealing structure, 51, sealing ring, 52, holding tank, 53, second trachea, 6, the structure of opening and close, 61, dish, 62, valve rod, 63, guide plate, 64, sealing washer, 65, scraper blade, 66, first reset spring, 7, limit structure, 71, second reset spring, 72, sleeve, 73, slider, 74, third reset spring, 75, fixture block, 8, linkage structure, 81, pressure increasing piece, 82, pressure increasing sleeve, 83, fourth reset spring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-9, the TBD tank bottom valve of the present invention comprises a driving structure 1, a transmission structure 2, a back-flushing structure 3, a TBD tank bottom valve body 4, a sealing structure 5, an opening and closing structure 6, a limiting structure 7 and a linkage structure 8; the bottom end of the TBD tank bottom valve body 4 is provided with the driving structure 1 for driving, the driving structure 1 is connected to the transmission structure 2, the transmission structure 2 is connected to the opening and closing structure 6 for sealing the TBD tank bottom valve body 4, and the opening and closing structure 6 is rotatably connected with the TBD tank bottom valve body 4; the sealing structure 5 used for connecting the reaction kettle is arranged at the top end of the TBD tank bottom valve body 4; the limiting structure 7 for limiting the transmission structure 2 is arranged inside the driving structure 1, and the sealing structure 5 is connected to the limiting structure 7; the inside of TBD tank bottom valve body 4 is equipped with the back flush structure 3 that is used for cavity seal and back flush, back flush structure 3 connect in the inside linkage structure 8 of drive structure 1, just transmission structure 2 contradicts in linkage structure 8.
Specifically, drive structure 1 includes runner 11, actuating lever 12, accomodates cover 13, supports cover 14, rack 15, gear 16 and guide rail 17, support cover 14 and locate TBD tank bottoms valve body 4's bottom, the bottom of supporting cover 14 is equipped with accomodate cover 13, guide rail 17 is fixed in accomodate the inside of cover 13, be equipped with sliding connection on the guide rail 17 rack 15, actuating lever 12 through connection in accomodate cover 13 with rack 15, actuating lever 12 with accomodate and rotate between the cover 13 and be connected, actuating lever 12 with threaded connection between the rack 15, actuating lever 12 deviates from the one end of rack 15 is equipped with runner 11, rack 15 with the gear 16 meshes, the thickness of gear 16 is greater than the thickness of rack 15.
Specifically, the transmission structure 2 includes a transmission rod 21, an indication block 22 and a transmission ring 23, the transmission rod 21 penetrates through the storage sleeve 13 and the support sleeve 14, the transmission rod 21 is in threaded connection with the support sleeve 14, the transmission ring 23 of a circular ring is arranged at the bottom end of the transmission rod 21, the gear 16 is fixed at the end of the transmission rod 21, the indication block 22 in sliding connection with the support sleeve 14 is arranged at one end of the transmission rod 21, which is far away from the storage sleeve 13, the transmission rod 21 is in rotational connection with the indication block 22, and a plurality of through holes are formed in the transmission ring 23 in a circumferential array.
Specifically, the opening and closing structure 6 comprises a disc 61, a valve rod 62, a guide plate 63, a seal ring 64, a scraper 65 and a first return spring 66, one end of the valve rod 62 is fixed to the transmission rod 21, the valve rod 62 and the TBD tank bottom valve body 4 are connected in a rotating and sliding manner, one end of the valve rod 62, which is away from the transmission rod 21, is provided with the guide plate 63 and the disc 61, the guide plate 63 abuts against the disc 61, the disc 61 is in a circular truncated cone-shaped structure, the disc 61 is provided with the annular seal ring 64 which abuts against the TBD tank bottom valve body 4, the scraper 65 is arranged in the guide plate 63 in a sliding manner, one end of the scraper 65, which is away from the guide plate 63, is in a trapezoid shape, and the first return spring 66 is arranged between the guide plate 63 and the scraper 65; the bottom end of the TBD tank bottom valve body 4 is provided with the driving structure 1 for driving, the driving structure 1 is connected with the transmission structure 2, the transmission structure 2 is connected with the opening and closing structure 6 for sealing the TBD tank bottom valve body 4, the opening and closing structure 6 is rotatably connected with the TBD tank bottom valve body 4, so that the transmission structure 2 is driven by the driving structure 1, the transmission structure 2 drives the opening and closing structure 6 to rotate and lift in the TBD tank bottom valve body 4 to control the opening and closing of the TBD tank bottom valve body 4, the driving structure 1 is arranged to save more labor in operation and has an automatic limiting function, the liquid discharge speed of the TBD tank bottom valve body 4 is more convenient to control, and meanwhile, the end part of the TBD tank bottom valve body 4 is convenient to clean through the opening and closing structure 6, effectual prevent that reaction material is in TBD tank bottoms valve body 4's inside bonds, and then has improved greatly open and close structure 6 with leakproofness between the TBD tank bottoms valve body 4, promptly: when the TBD tank bottom valve body 4 needs to be opened and closed, the rotating direction of the rotating wheel 11 is controlled, the rotating wheel 11 rotates to drive the driving rod 12 to rotate, the driving rod 12 rotates to drive the rack 15 to slide in the guide rail 17 in a threaded manner, the driving rod 12 drives the rack 15 to slide in a threaded manner by adopting a lead screw slider principle, so that an automatic limiting function is achieved, the liquid discharge speed of the TBD tank bottom valve body 4 is controlled to be more accurate and stable, the operation is more labor-saving by matching with the use of the rotating wheel 11, the rack 15 drives the gear 16 to rotate, the gear 16 drives the transmission rod 21 to be in threaded connection with the support sleeve 14, the transmission rod 21 drives the valve rod 62 to spirally lift, the valve rod 62 spirally lifts and further drives the distance between the truncated cone-shaped disc 61 and the TBD tank bottom valve body 4 to change, meanwhile, the gear 16 slides with the rack 15, the transmission rod 21 is in threaded connection with the support sleeve 14 to drive the indication block 22 on the transmission rod 21 to slide with the support sleeve 14, so that the flow inside the TBD tank bottom valve body 4 can be visually judged according to the position of the indication block 22 away from the bottom end of the support sleeve 14, the flow can be adjusted more conveniently and rapidly, the disc 61 is supported by the guide piece 63, the disc 61 is stressed more uniformly, the guide piece 63 rotates and drives the scraping plate 65 with the trapezoidal structure at the end part to slide with the TBD tank bottom valve body 4, the solution adhered to the TBD tank bottom valve body 4 is taken out, the solution is prevented from being adhered to the TBD tank bottom valve body 4, and the sealing performance between the disc 61 and the TBD tank bottom valve body 4 is better, simultaneously the tip of scraper blade 65 has the guide effect for trapezoidal, is convenient for the different positions of TBD tank bottoms valve body 4's inside slide, scraper blade 65 with be equipped with between the guide plate 63 first reset spring 66, and then make scraper blade 65's tip wearing and tearing back, first reset spring 66 is contradicted scraper blade 65 makes scraper blade 65 is contradicted all the time TBD tank bottoms valve body 4, and then the messenger is right TBD tank bottoms valve body 4's clearance effect is better.
Specifically, seal structure 5 includes sealing ring 51, holding tank 52 and second trachea 53, the cross-section that TBD tank bottoms valve body 4's top was equipped with the tip is the arc sealing ring 51, sealing ring 51 with cup joint between TBD tank bottoms valve body 4, sealing ring 51's inside is equipped with the annular holding tank 52, the one end of second trachea 53 run through in TBD tank bottoms valve body 4 and with the inside of sealing ring 51 the holding tank 52 switches on.
Specifically, the limiting structure 7 includes a second return spring 71, a sleeve 72, a slider 73, a third return spring 74 and a latch 75, the sleeve 72 is fixed inside the accommodating sleeve 13, the slider 73 with an L-shaped cross section is slidably connected inside the sleeve 72, the second return spring 71 is arranged between the slider 73 and the sleeve 72, the other end of the second air tube 53 is communicated with a space enclosed between the slider 73 and the sleeve 72, the latch 75 connected in an arc shape is arranged on the slider 73, the third return spring 74 is arranged between the latch 75 and the slider 73, and the transmission ring 23 is arranged at the top end of the latch 75; the sealing structure 5 used for connecting the reaction kettle is arranged at the top end of the TBD tank bottom valve body 4; it is right to be used for drive structure 2 carries on spacingly limit structure 7 locates drive structure 1's inside, just seal structure 5 connect in limit structure 7, and then work as the leakproofness between seal structure 5 and the reation kettle is relatively poor or when seal structure 5 damaged, through limit structure 7 is right drive structure 2 carries on spacingly, makes drive structure 1 and its drive structure 2 can't work, and then is convenient for through whether can drive structure 1 judges leakproofness between seal structure 5 and the reation kettle has effectually avoided reaction solution to add the phenomenon that causes the leakage in reation kettle's inside to take place, and then makes leakproofness between TBD tank bottom valve body 4 and the reation kettle is more convenient for control, promptly: the TBD tank bottom valve body 4 is connected with a reaction kettle through a bolt, so that the TBD tank bottom valve body 4 is matched with the reaction kettle to press the sealing ring 51 in an abutting mode, the top surface of the sealing ring 51 is arc-shaped, the contact area between the sealing ring 51 and the reaction kettle is further increased, the sealing performance between the reaction kettle and the TBD tank bottom valve body 4 is better, the sealing ring 51 is extruded and deformed, the space of the accommodating groove 52 is reduced, gas in the accommodating groove 52 enters the space between the sleeve 72 and the sliding block 73 through the second gas pipe 53, the sliding block 73 and the sleeve 72 are driven to slide through gas pressure, the second reset spring 71 is extended, the clamping block 75 cannot contact with the transmission ring 23 when the transmission ring 23 is positioned at the bottom end, when the sealing ring 51 is damaged, or the TBD tank bottom valve body 4 is not enough to press against the sealing ring 51, the second reset spring 71 contracts and drives the sliding block 73 to move towards the second reset spring 71 to slide, so that the end part of the sliding block 73 is clamped with the transmission ring 23, the transmission ring 23 cannot rotate, the transmission rod 21 cannot rotate, the gear 16 and the rack 15 cannot rotate and cannot drive the rotating wheel 11, the rotating wheel 11 can be conveniently rotated to visually react with the TBD tank bottom valve body 4 and the reaction kettle, the phenomenon that the reaction solution is added in the reaction kettle to cause leakage is effectively avoided, and the sealing performance between the TBD tank bottom valve body 4 and the reaction kettle is more convenient to control.
Specifically, linkage structure 8 includes pressurization piece 81, pressurization cover 82 and fourth reset spring 83, semi-annular structure pressurization cover 82 is fixed in accomodate cover 13, the centre of a circle of gear 16 with the centre of a circle of pressurization cover 82 is in same position, semi-annular pressurization piece 81 with sliding connection between the pressurization cover 82, fourth reset spring 83 locates pressurization piece 81 with between the pressurization cover 82, just transmission ring 23 contradict in pressurization piece 81.
Specifically, the back flushing structure 3 comprises a water pipe 31, a sealing plug 32, a through hole 33, a sliding sleeve 34, a pressurizing plug 35 and a first air pipe 36, the sealing plug 32 is in sliding connection with the TBD tank bottom valve body 4, the sliding sleeve 34 is arranged at the end part of the sealing plug 32, the sliding sleeve 34 is connected with the hollow pressurizing plug 35 in a sliding way, the pressurizing plug 35 is connected with the sliding sleeve 34 in a sliding way, one end of the first air pipe 36 is fixed on the pressurizing plug 35 and is communicated with the accommodating cavity between the pressurizing plug 35 and the sliding sleeve 34, the other end of the first air pipe 36 is communicated with the accommodating cavity between the pressurizing block 81 and the pressurizing sleeve 82, an accommodating cavity is formed in the inner part of one end, away from the sliding sleeve 34, of the sealing plug 32, two through holes 33 are formed in the sealing plug 32, and the water pipe 31 is fixed to the sealing plug 32 and is communicated with the through holes 33; TBD tank bottoms valve body 4's inside is equipped with and is used for the cavity to seal and the back flush structure 3, back flush structure 3 connect in drive structure 1's inside linkage structure 8, just drive structure 2 contradict in linkage structure 8, and then be convenient for pass through drive structure 2 drive linkage structure 8 makes linkage structure 8 drive back flush structure 3 control the opening and closing of TBD tank bottoms valve body 4 is convenient for simultaneously right the inside of TBD tank bottoms valve body 4 is backflushed, and then makes TBD tank bottoms valve body 4's clearance convenient and fast more, promptly: when the disc 61 slides away from one end of the TBD tank bottom valve body 4, the contact force between the transmission ring 23 and the pressurization block 81 is reduced, the fourth return spring 83 extends, the fourth return spring 83 drives the pressurization block 81 and the pressurization sleeve 82 to slide, so that the accommodating cavity between the pressurization block 81 and the pressurization sleeve 82 is enlarged, the gas in the accommodating cavity between the sliding sleeve 34 and the pressurization plug 35 enters the inside of the pressurization sleeve 82 through the first gas pipe 36, and further the sliding sleeve 34 and the pressurization plug 35 slide under the action of atmospheric pressure, so that the sealing plug 32 and the TBD tank bottom valve body 4 do not interfere with each other and seal, when the transmission ring 23 slides towards the pressurization block 81, the transmission ring 23 interferes with the pressurization block 81, and the fourth return spring 83 compresses, so that the accommodating cavity between the pressurization block 81 and the pressurization sleeve 82 is reduced, the gas enters a containing cavity between the sliding sleeve 34 and the pressurizing plug 35 through the first gas pipe 36, the sliding sleeve 34 and the pressurizing plug 35 slide under the action of air pressure, the sealing plug 32 is in abutting sealing with the TBD tank bottom valve body 4, the end of the sealing plug 32 is provided with the containing cavity, the end of the sealing plug 32 can deform, the sealing plug 32 and the TBD tank bottom valve body 4 have better sealing performance, the sealing plug 32 is in double-layer sealing with the disc 61, the sealing plug 32 can be continuously used after the disc 61 is damaged, when the disc 61 abuts against the TBD tank bottom valve body 4, the disc 32 completely seals the TBD tank bottom valve body 4, the water pipe 31 for draining water and the water pipe 31 for high-pressure flushing are opened, and high-pressure water flows through one of the through holes 33 to flush the inside of the TBD tank bottom valve body 4, and then the water is discharged from the other through hole 33 to the water pipe 31 for water drainage, so that the inside of the TBD tank bottom valve body 4 can be cleaned after the TBD tank bottom valve body 4 is closed every time, and the adhesion of materials in the inside of the TBD tank bottom valve body 4 is avoided.
When the tank bottom valve is used, when the TBD tank bottom valve body 4 needs to be opened and closed, the rotating wheel 11 rotates to drive the driving rod 12 to rotate by controlling the rotating direction of the rotating wheel 11, the driving rod 12 rotates the thread driving rack 15 to slide in the guide rail 17, the thread driving rack 15 of the driving rod 12 slides by adopting the lead screw slider principle, and further has an automatic limiting function, so that the liquid discharge speed of the TBD tank bottom valve body 4 is controlled to be more accurate and stable, the operation is more labor-saving by matching with the use of the rotating wheel 11, the gear 16 is driven by the rack 15 to rotate, the gear 16 drives the transmission rod 21 to be in threaded connection with the support sleeve 14, the transmission rod 21 drives the valve rod 62 to spirally lift, the valve rod 62 spirally lifts to further drive the distance between the circular table-shaped disc 61 and the TBD tank bottom valve body 4 to change, meanwhile, the gear 16 slides with, the indication block 22 on the driving rod 21 and the support sleeve 14 are driven to slide, so that the flow inside the TBD tank bottom valve body 4 can be intuitively judged according to the position of the indication block 22 away from the bottom end of the support sleeve 14, the flow can be adjusted more conveniently and rapidly, the disc 61 can be conveniently supported by the guide sheet 63, the disc 61 is more uniformly stressed, the guide sheet 63 rotates and drives the scraper 65 with the trapezoidal structure at the end part to slide with the TBD tank bottom valve body 4, the solution adhered to the TBD tank bottom valve body 4 is taken out, the solution is prevented from being adhered to the TBD tank bottom valve body 4, the sealing performance between the disc 61 and the TBD tank bottom valve body 4 is better, the end part of the scraper 65 is trapezoidal, the guide effect is achieved, the sliding at different positions inside the TBD tank bottom valve body 4 is facilitated, a first reset spring 66 is arranged between the scraper 65 and the guide sheet 63, after the end part of the scraper 65 is abraded, the first reset spring 66 props against the scraper 65, so that the scraper 65 always props against the TBD tank bottom valve body 4, and the cleaning effect on the TBD tank bottom valve body 4 is better; the TBD tank bottom valve body 4 is connected with the reaction kettle through a bolt, so that the TBD tank bottom valve body 4 is matched with the reaction kettle to abut against and extrude the sealing ring 51, the top surface of the sealing ring 51 is arc-shaped, further the contact area between the sealing ring 51 and the reaction kettle is increased, the sealing performance between the reaction kettle and the TBD tank bottom valve body 4 is better, the sealing ring 51 is extruded and deformed, the space of the accommodating groove 52 is reduced, gas in the accommodating groove 52 enters the space between the sleeve 72 and the sliding block 73 through the second gas pipe 53, further the sliding between the sliding block 73 and the sleeve 72 is driven through the gas pressure, the second reset spring 71 is extended, the fixture block 75 cannot contact with the transmission ring 23 when the transmission ring 23 is at the bottom end, when the sealing ring 51 is damaged, or the abutting force of the TBD tank bottom valve body 4 on the sealing ring 51 is insufficient, the second reset spring 71 contracts to drive the sliding block 73 to slide towards the second reset spring 71, the fixture, the driving ring 23 cannot rotate, the driving rod 21 cannot rotate, the gear 16 and the rack 15 cannot rotate, the rotating wheel 11 cannot be driven, whether the direct reaction TBD tank bottom valve body 4 and the reaction kettle can rotate or not can be conveniently sealed, the phenomenon that reaction solution is added in the reaction kettle to cause leakage is effectively avoided, and the sealing performance between the TBD tank bottom valve body 4 and the reaction kettle is more convenient to control; when the disc 61 slides away from one end of the TBD tank bottom valve body 4, the interference force between the transmission ring 23 and the pressurizing block 81 is reduced, the fourth return spring 83 extends, the fourth return spring 83 drives the pressurizing block 81 and the pressurizing sleeve 82 to slide, so that the accommodating cavity between the pressurizing block 81 and the pressurizing sleeve 82 is enlarged, the gas in the accommodating cavity between the sliding sleeve 34 and the pressurizing plug 35 enters the pressurizing sleeve 82 through the first gas pipe 36, the sliding sleeve 34 and the pressurizing plug 35 slide under the action of atmospheric pressure, the sealing plug 32 and the TBD tank bottom valve body 4 are not in interference sealing, when the transmission ring 23 slides towards the pressurizing block 81, the transmission ring 23 and the pressurizing block 81 are in interference sealing, the fourth return spring 83 is compressed, the accommodating cavity between the pressurizing block 81 and the pressurizing sleeve 82 is reduced, and the gas enters the accommodating cavity between the sliding sleeve 34 and the pressurizing plug 35 through the first gas pipe 36, and then make sliding sleeve 34 and pressurized plug 35 slide under the effect of atmospheric pressure, make sealing plug 32 and TBD tank bottom valve body 4 conflict and seal, the tip of sealing plug 32 is equipped with and holds the cavity, make the tip of sealing plug 32 can be deformed, make the leakproofness between sealing plug 32 and TBD tank bottom valve body 4 better, and then cooperate dish 61 to carry out double-deck sealing to TBD tank bottom valve body 4, make sealing plug 32 can continue to use after dish 61 damages, after dish 61 and TBD tank bottom valve body 4 are supported, sealing plug 32 seals TBD tank bottom valve body 4 completely, open water pipe 31 used for the drainage and water pipe 31 used for high-pressure washing, high-pressure rivers wash in the inside of TBD tank bottom valve body 4 through one of them through-hole 33, then discharge to water pipe 31 used for the drainage from another through-hole 33, and then be convenient for after closing TBD tank bottom valve body 4 at every turn to the inside of TBD tank bottom valve body 4 clean, the bonding of the materials in the TBD tank bottom valve body 4 is avoided.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. A TBD tank bottom valve characterized by: the tank bottom valve comprises a driving structure (1), a transmission structure (2), a backwashing structure (3), a TBD tank bottom valve body (4), a sealing structure (5), an opening and closing structure (6), a limiting structure (7) and a linkage structure (8); the bottom end of the TBD tank bottom valve body (4) is provided with the driving structure (1) for driving, the driving structure (1) is connected to the transmission structure (2), the transmission structure (2) is connected to the opening and closing structure (6) for sealing the TBD tank bottom valve body (4), and the opening and closing structure (6) is rotatably connected with the TBD tank bottom valve body (4); the sealing structure (5) used for connecting the reaction kettle is arranged at the top end of the TBD tank bottom valve body (4); the limiting structure (7) used for limiting the transmission structure (2) is arranged in the driving structure (1), and the sealing structure (5) is connected to the limiting structure (7); the inside of TBD tank bottom valve body (4) is equipped with and is used for the cavity to seal and back flush structure (3), back flush structure (3) connect in the inside of drive structure (1) linkage structure (8), just transmission structure (2) contradict in linkage structure (8).
2. A TBD tank bottom valve according to claim 1 wherein: the driving structure (1) comprises a rotating wheel (11), a driving rod (12), a containing sleeve (13), a supporting sleeve (14), a rack (15), a gear (16) and a guide rail (17), the supporting sleeve (14) is arranged at the bottom end of the TBD tank bottom valve body (4), the bottom end of the supporting sleeve (14) is provided with the containing sleeve (13), the guide rail (17) is fixed in the containing sleeve (13), the guide rail (17) is provided with the rack (15) in sliding connection, the driving rod (12) is connected with the containing sleeve (13) and the rack (15) in a penetrating way, the driving rod (12) is connected with the containing sleeve (13) in a rotating way, the driving rod (12) is connected with the rack (15) in a threaded way, one end of the driving rod (12) deviating from the rack (15) is provided with the rotating wheel (11), and the rack (15) is meshed with the gear (16), the thickness of the gear (16) is greater than the thickness of the rack (15).
3. A TBD tank bottom valve according to claim 2 wherein: the transmission structure (2) comprises a transmission rod (21), an indicating block (22) and a transmission ring (23), the transmission rod (21) penetrates through the storage sleeve (13) and the support sleeve (14), the transmission rod (21) is in threaded connection with the support sleeve (14), the transmission ring (23) of a circular ring is arranged at the bottom end of the transmission rod (21), the gear (16) is fixed at the end of the transmission rod (21), one end, deviating from the storage sleeve (13), of the transmission rod (21) is provided with the indicating block (22) in sliding connection with the support sleeve (14), the transmission rod (21) is in rotating connection with the indicating block (22), and a plurality of through holes are formed in the transmission ring (23) in a circumferential array mode.
4. A TBD tank bottom valve according to claim 3 wherein: open and close structure (6) and include dish (61), valve rod (62), guide plate (63), sealing washer (64), scraper blade (65) and first reset spring (66), the one end of valve rod (62) is fixed in transfer line (21), valve rod (62) with rotate between TBD tank bottoms valve body (4) and sliding connection, the one end that valve rod (62) deviates from transfer line (21) is equipped with guide plate (63) with dish (61), guide plate (63) contradict in dish (61), dish (61) are round platform shape structure, be equipped with on dish (61) with the annular sealing washer (64) of TBD tank bottoms valve body (4) contradicting, the inside of guide plate (63) is equipped with sliding connection scraper blade (65), scraper blade (65) deviate from the one end of guide plate (63) is trapezoidal, the first return spring (66) is arranged between the guide sheet (63) and the scraper (65).
5. A TBD tank bottom valve according to claim 3 wherein: seal structure (5) are including sealing ring (51), holding tank (52) and second trachea (53), the cross-section that TBD tank bottoms valve body (4)'s top was equipped with the tip is the arc sealing ring (51), sealing ring (51) with cup joint between TBD tank bottoms valve body (4), the inside of sealing ring (51) is equipped with annular holding tank (52), the one end of second trachea (53) run through in TBD tank bottoms valve body (4) and with the inside of sealing ring (51) holding tank (52) switch on.
6. A TBD pot bottom valve according to claim 5, wherein: limiting structure (7) include second reset spring (71), sleeve (72), slider (73), third reset spring (74) and fixture block (75), sleeve (72) are fixed in accomodate the inside of cover (13), the inside of sleeve (72) is equipped with sliding connection's cross-section for L shape structure slider (73), slider (73) with be equipped with between sleeve (72) second reset spring (71), the other one end of second trachea (53) with slider (73) with the space that encloses between sleeve (72) switches on, be equipped with the radian on slider (73) and connect fixture block (75), fixture block (75) with be equipped with between slider (73) third reset spring (74), drive ring (23) are located the top of fixture block (75).
7. A TBD tank bottom valve according to claim 3 wherein: linkage structure (8) are including pressurization piece (81), pressurization cover (82) and fourth reset spring (83), the semi-annular structure pressurization cover (82) are fixed in accomodate cover (13), the centre of a circle of gear (16) with the centre of a circle of pressurization cover (82) is in same position, semi-annular pressurization piece (81) with sliding connection between pressurization cover (82), fourth reset spring (83) are located pressurization piece (81) with between pressurization cover (82), just transmission ring (23) contradict in pressurization piece (81).
8. A TBD pot bottom valve according to claim 7, wherein: the backwashing structure (3) comprises a water pipe (31), a sealing plug (32), a through hole (33), a sliding sleeve (34), a pressurizing plug (35) and a first air pipe (36), the sealing plug (32) is in sliding connection with the TBD tank bottom valve body (4), the sliding sleeve (34) is arranged at the end part of the sealing plug (32), the sliding sleeve (34) is connected with the hollow pressurizing plug (35), the pressurizing plug (35) is in sliding connection with the sliding sleeve (34), one end of the first air pipe (36) is fixed on the pressurizing plug (35) and is communicated with a containing cavity between the pressurizing plug (35) and the sliding sleeve (34), the other end of the first air pipe (36) is communicated with the containing cavity between the pressurizing block (81) and the pressurizing sleeve (82), and a containing cavity is arranged inside of one end, deviating from the sliding sleeve (34), of the sealing plug (32), two through holes (33) are formed in the sealing plug (32), and the water pipe (31) is fixed to the sealing plug (32) and is communicated with the through holes (33).
CN202010294522.2A 2020-04-15 2020-04-15 TBD tank bottom valve Pending CN111346574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010294522.2A CN111346574A (en) 2020-04-15 2020-04-15 TBD tank bottom valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010294522.2A CN111346574A (en) 2020-04-15 2020-04-15 TBD tank bottom valve

Publications (1)

Publication Number Publication Date
CN111346574A true CN111346574A (en) 2020-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010294522.2A Pending CN111346574A (en) 2020-04-15 2020-04-15 TBD tank bottom valve

Country Status (1)

Country Link
CN (1) CN111346574A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111658034A (en) * 2020-07-13 2020-09-15 牛鸣 Distractor in knee joint replacement
CN113090790A (en) * 2021-04-19 2021-07-09 延安大学 Spring pressure vessel relief valve for chemical production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111658034A (en) * 2020-07-13 2020-09-15 牛鸣 Distractor in knee joint replacement
CN113090790A (en) * 2021-04-19 2021-07-09 延安大学 Spring pressure vessel relief valve for chemical production

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