CN1305556C - Shuttle type bitank alternating work system - Google Patents

Shuttle type bitank alternating work system Download PDF

Info

Publication number
CN1305556C
CN1305556C CNB200410081386XA CN200410081386A CN1305556C CN 1305556 C CN1305556 C CN 1305556C CN B200410081386X A CNB200410081386X A CN B200410081386XA CN 200410081386 A CN200410081386 A CN 200410081386A CN 1305556 C CN1305556 C CN 1305556C
Authority
CN
China
Prior art keywords
valve
passage
shuttle
type
jar
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.)
Expired - Fee Related
Application number
CNB200410081386XA
Other languages
Chinese (zh)
Other versions
CN1651131A (en
Inventor
曾祥炜
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.)
Sichuan red earth Tianfu Passive Control Technology Co. Ltd.
Original Assignee
曾祥炜
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 曾祥炜 filed Critical 曾祥炜
Priority to CNB200410081386XA priority Critical patent/CN1305556C/en
Publication of CN1651131A publication Critical patent/CN1651131A/en
Application granted granted Critical
Publication of CN1305556C publication Critical patent/CN1305556C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The present invention relates to a shuttle type double-tank alternating work system. The inlet ends of tanks A, B are mutually communicated by a valve (1) and communicated with a pressure source using raw materials as media and a waste discharge pipe; the outlet ends of the tanks A, B are mutually communicated by a valve (2) and communicated with a product conveying pipe; the valve (1) is a shuttle type four-way reversing valve or two parallel shuttle type three-way reversing valve; the valve (2) is a shuttle type three-way diversion adjusting valve.

Description

Shuttle type bitank alternating work system
Technical field:
Two jars of treatment systems of the present invention and fluid media (medium) are relevant.
Background technology:
Jar A, the B-end of two jars of treatment systems of existing fluid media (medium) is respectively by valve a 1, b 1With the pressure-source communication of fluid media (medium), respectively by valve a 2, b 2Be communicated with the gurry delivery pipe, the other end of jar A, B is respectively by valve a 3, b 3Be communicated with the product carrier pipe, C communicates with each other by valve.Valve a 1, a 2, a 3, b 1, b 2, b 3, C generally adopts magnetic valve, pneumatic operated valve mostly is the switching regulator ball valve, because valve is many, program is complicated, this system cost height.
Two jars of treatment systems of existing fluid media (medium) have five duties as shown in Figure 2 to make two jars of alternations handle fluid media (medium).
Processing procedure is gone round and begun again
Stage 2,4 in fact can be at valve a 1, a 2, b 1, b 2On add the time-delay finish.
Valve process conditions among Fig. 2:
Operating pressure (pressure): 0~50Mpa.
Operating temperature :-75~600 ℃.
Working media: oil, air, water and other gas, liquid.
Valve driving machine structure among Fig. 2: promote valve body by the solenoid control pneumatic actuator.
The content of invention:
The purpose of this invention is to provide a kind of simple in structurely, with low cost, only need two or three shuttle valves just can realize the shuttle type bitank alternating work system of five job steps.
The present invention is achieved in that
Shuttle type bitank alternating work system of the present invention, jar A, the B arrival end be interconnected by first valve and be communicated with the pressure source and the gurry delivery pipe of raw material as medium, jar A, the port of export of B is interconnected by second valve and is communicated with the product carrier pipe, it is characterized in that said first valve is the shuttle-type three-way diverter valve of a shuttle-type four-way change-over valve or two parallel connections, said second valve is a shuttle-type distributing T-pipe control valve, the valve body 2 of shuttle-type distributing T-pipe control valve has passage 9,10 are connected with the port of export of jar B with jar A respectively, there is passage 11 to be connected with the product carrier pipe, check-valves 12 is arranged on the passage 11, the core retainer plate 4 and the peg or spindle 5 that match are arranged in the valve pocket, the valve pocket left end has a left keeper 3 and a left side to drive cylinder 1, and the valve pocket right-hand member has right keeper 6 and the right cylinder 7 that drives.In the valve body 13 of shuttle-type four-way change-over valve disc seal receptacle 14 is arranged, seal receptacle 14 be evenly equipped with four through holes 15 respectively with the passage h of valve body 13 1, h 2, h 3, h 4Communicate, one end of spool 16 is cylindrical, there are two flute profile blind holes 17 to be rotatably assorted on the end face with seal receptacle 2, the other end of spool 16 stretches out tooth bar 22 engagements on the piston rod 21 that gear 18 and oscillating cylinder 19 are arranged outside the valve gap 20, primary importance at spool 16, be the centre position that gear 18 is in rack stroke, four passage h of valve body 13 1, h 2, h 3, h 4Not connected, in the second place of spool, i.e. 45 ° of gear 18 rotations are in tooth bar left line way limit position, passage h 1And h 2With communicate passage h 4And h 3Communicate, in the 3rd position of spool, promptly gear 18 counter-clockwise half-twists are in extreme limit of travel position, tooth bar the right, passage h 1And h 4Communicate passage h 2And h 3Communicate, gear 18 turns clockwise 45 °, and spool 16 returns to primary importance, passage h 1Be connected passage h with the pressure source of raw material as medium 2Be connected passage h with jar A arrival end 3Be connected passage h with the gurry delivery pipe 4Be connected with jar B arrival end.
The valve body 2 of shuttle-type three-way diverter valve has passage 9 to communicate with a jar A arrival end, there is path 10 to communicate with a jar B arrival end, passage 11 be communicated with as the pressure-source communication of medium or with the gurry delivery pipe with raw material, have the core retainer plate 4 and peg or spindle 5, the valve pocket left end that match to have a left keeper 3 and a left side to drive cylinder 1 in the valve pocket, the valve pocket right-hand member has right keeper 6 and the right cylinder 7 that drives.
The spool of shuttle-type three-way diverter valve is connected with valve rod, and valve rod is the piston rod of control cylinder or hydraulic cylinder.
First valve is the shuttle-type four-way change-over valve, a passage of shuttle-type four-way change-over valve is communicated with a jar A arrival end, a passage is communicated with a jar B inlet, passage with the pressure-source communication of raw material as medium, a passage is communicated with the gurry delivery pipe, the shuttle chamber of said shuttle-type distributing T-pipe control valve is communicated with three fluid flow ports, a fluid flow port connects the port of export of jar A, a fluid flow port connects the port of export of jar B, and fluid flow port product carrier pipe of practicing midwifery has spool and left and right keeper in the shuttle chamber.
The spool of shuttle-type four-way change-over valve is connected with gear, tooth bar on gear and the cylinder piston rod is in transmission connection, spool has the hole of matching with seal disc, cylinder is connected with source of the gas by magnetic valve, the spool both sides of said shuttle-type distributing T-pipe control valve are connected this two cylinder respectively and are connected with source of the gas by a magnetic valve respectively with the piston rod of a cylinder, magnetic valve connects control appliance, and rib formula distributing T-pipe control valve has check-valves with the fluid flow port that the product carrier pipe is connected.
Valve 1 is two shuttle-type three-way diverter valves in parallel, two shuttle-type three-way diverter valves respectively have a fluid flow port to be communicated with a jar A and a jar B arrival end, another fluid flow port of a shuttle-type three-way diverter valve with the pressure-source communication of raw material as medium, another fluid flow port of another shuttle-type three-way diverter valve is communicated with the gurry delivery pipe.
First duty in system, the passage t of shuttle-type distributing T-pipe control valve 1And t 2Be communicated with, the spool 16 of shuttle-type four-way change-over valve is in primary importance, second duty in system, passage t 1And t 3Be communicated with, the time is 15 minutes, the 3rd duty in system, passage t 1And t 3, t 1And t 2Be communicated with, the time is 10 seconds, and spool 16 is in the 2nd position, the 4th duty in system, passage t 2And t 3Be communicated with, the time is 15 minutes, the 5th duty in system, passage t 2And t 3, passage t 2And t 1Be communicated with, the time was 10 seconds, and spool 16 is in the 3rd position, the passage t of shuttle-type distributing T-pipe control valve 1Connect the port of export of jar A, passage t 2Connect the port of export of jar B, passage t 3The product carrier pipe of practicing midwifery.
Shuttle-type three-way diverter valve among the present invention is open by Chinese patent Granted publication CN224673Y.It is to have a fluid flow port to be connected with the product letter shoot respectively with on the by-pass that two ends, shuttle chamber are connected at two ends that shuttle-type distributing T-pipe control valve among the present invention is compared with the disclosed adjustable differential flow shuttle valve of Chinese patent 87103004A, the manual pneumatic or electronic control of can relying on oneself of the position of spool, the three-dimensional shunting regulatory function is arranged, can improve reliability and automaticity, reduce cost.The basic structure of rib formula distributing T-pipe control valve of the present invention is identical with the shuttle-type three-way diverter valve, just with on the passage that the product carrier pipe links to each other check-valves is arranged.The present invention can realize five duties that prior art need could realize with seven valves with a shuttle-type distributing T-pipe control valve and two shuttle-type three-way diverter valves, reduced cost, reliability and automaticity have been improved, the present invention equally also can realize the function of seven valves in the prior art with a shuttle-type distributing T-pipe control valve and shuttle-type four-way change-over valve, structure is simpler, more help improving reliability and automaticity, cost is cheaper.
Description of drawings:
Fig. 1 is existing two jars of alternating work system structure charts.
Fig. 2 is the valve working program list of system shown in Figure 1.
Fig. 3 is structure chart of the present invention (shutdown phase).
Fig. 4 is stage 1 schematic diagram of the present invention.
Fig. 5 is stages 2 schematic diagram of the present invention.
Fig. 6 is stages 3 schematic diagram of the present invention.
Fig. 7 is stages 4 schematic diagram of the present invention.
Fig. 8 is two of a structure chart of the present invention.
Fig. 9 is three of a structure chart of the present invention.
Figure 10 is a shuttle-type distributing T-pipe control valve structure chart.
Figure 11 is a shuttle-type four-way change-over valve structure chart.
Figure 12 is a shuttle-type three-way diverter valve structure chart.
Figure 13 is the action schedule of the embodiment of the invention 1.
The specific embodiment:
Embodiment 1:
The arrival end of jar A, B of the present invention respectively with a channel connection of shuttle-type four-way change-over valve, passage of shuttle-type four-way change-over valve be connected with the pressure source of raw material as medium, a passage is connected with the gurry delivery pipe.The port of export of jar A, B links to each other with the fluid flow port with two ends, shuttle chamber are connected of shuttle-type distributing T-pipe control valve respectively, has fluid flow port to be communicated with the product carrier pipe on the by-pass with the connection of two ends, shuttle chamber.Chute in the shuttle chamber is provided with plunger and is slidingly matched with it, and the one-sided or both sides of plunger are connected with the control actuating unit.The control actuating unit can be the pneumatic or Hydraulic Elements that are connected with magnetic valve.Magnetic valve connects control appliance.
In the valve body 13 of shuttle-type four-way change-over valve disc seal receptacle 14 is arranged, seal receptacle 14 be evenly equipped with four through holes 15 respectively with the passage h of valve body 13 1, h 2, h 3, h 4Communicate, one end of spool 16 is cylindrical, has two flute profile blind holes 17 to be rotatably assorted with seal receptacle 2 on the end face, and the other end of spool 16 stretches out tooth bar 22 engagements on the piston rod 21 that gear 18 and oscillating cylinder 19 are arranged outside the valve gap 20, in the primary importance of spool 16, four passage h of valve body 13 1, h 2, h 3, h 4Not connected, in the second place of spool, passage h 1And h 2With communicate passage h 4And h 3Communicate, at the 3rd position of spool, passage h 1And h 4Communicate passage h 2And h 3Communicate passage h 1Be connected passage h with the pressure source of raw material as medium 2Be connected passage h with jar A arrival end 3Be connected passage h with the gurry delivery pipe 4Be connected with jar B arrival end.In the stage 1, pressure source is connected with a jar A arrival end, the jar A port of export and product carrier pipe are connected, conveying products, in the stage 2, pressure source is connected with a jar A arrival end, the jar A port of export is communicated with conveying products with the product carrier pipe, be communicated with the jar B port of export, a jar B arrival end is communicated with can,douche B with the gurry delivery pipe.
In the stage 3, pressure source is communicated with a jar B arrival end, and a jar B port of export is communicated with the product carrier pipe, conveying products, and the arrival end of jar A is communicated with pressure release with the gurry delivery pipe.
In the stage 4, pressure source is communicated with a jar B arrival end, and a jar B port of export one tunnel is communicated with conveying products with the product carrier pipe, and one the tunnel is communicated with the port of export of jar A, and the arrival end of jar A is communicated with the gurry delivery pipe, and can,douche A gets rid of gurry.
In shutdown phase, the port of export of jar A, B is communicated with, and all the other ports are all closed, and does not have reset pressure to supply with, and does not also have product output and gurry to discharge, and two pressure tank balances are in the state of quitting work.
The primary importance of the spool 16 of shuttle-type four-way change-over valve, the passage t of shuttle-type distributing T-pipe control valve 1And t 2Be communicated with the second place of spool 16, passage t 1And t 3Be communicated with, the time is 15 minutes, passage t 1And t 3, t 1And t 2Be communicated with, the time is 10 seconds, at the 3rd position of spool 16, passage t 2And t 3Be communicated with, the time is 15 minutes, passage t 2And t 3, passage t 2And t 1Be communicated with, the time was 10 seconds, the passage t of shuttle-type distributing T-pipe control valve 1Connect the port of export of jar A, passage t 2Connect the port of export of jar B, passage t 3The product carrier pipe of practicing midwifery.
Embodiment 2:
System of subject is identical with embodiment 1.
The spool of shuttle-type four-way change-over valve is connected with a gear drive, and the tooth bar on gear and the cylinder piston rod is in transmission connection, and cylinder is connected with source of the gas by magnetic valve.The spool both sides of shuttle-type distributing T-pipe control valve are connected with the piston rod of a cylinder respectively, and this two cylinder is connected with source of the gas by a magnetic valve respectively.Magnetic valve connects control appliance.
Embodiment 3:
The arrival end of jar A, B connects each fluid flow port of two shuttle-type three-way diverter valves in parallel respectively, and another fluid flow port of a shuttle-type three-way diverter valve is communicated with the gurry delivery pipe.The port of export of jar A, B divides and is communicated with a fluid flow port of shuttle-type distributing T-pipe control valve, another fluid flow port of shuttle-type distributing T-pipe control valve product carrier pipe of practicing midwifery.

Claims (7)

1, shuttle type bitank alternating work system, jar A, the B arrival end be interconnected by first valve and be communicated with the pressure source and the gurry delivery pipe of raw material as medium, jar A, the port of export of B is interconnected by second valve and is communicated with the product carrier pipe, it is characterized in that said first valve is the shuttle-type three-way diverter valve of a shuttle-type four-way change-over valve or two parallel connections, said second valve is a shuttle-type distributing T-pipe control valve, the valve body (2) of said shuttle-type distributing T-pipe control valve has passage (9,10) be connected with the port of export of jar B with jar A respectively, there is passage (11) to be connected with the product carrier pipe, check-valves (12) is arranged on the passage (11), the core retainer plate (4) and the peg or spindle (5) that match are arranged in the valve pocket, the valve pocket left end has a left keeper (3) and a left side to drive cylinder (1), the valve pocket right-hand member has right keeper (6) and the right cylinder (7) that drives, disc seal receptacle (14) is arranged in the valve body of said shuttle-type four-way change-over valve (13), seal receptacle (14) be evenly equipped with four through holes (15) respectively with the passage (h of valve body (13) 1, h 2, h 3, h 4) communicate, one end of spool (16) is cylindrical, there are two flute profile blind holes (17) and seal receptacle (2) to be rotatably assorted on the end face, the other end of spool (16) stretches out tooth bar (22) engagement on the piston rod (21) that gear (18) and oscillating cylinder (19) are arranged outside the valve gap (20), primary importance in spool (16), be the centre position that gear (18) is in rack stroke, four passage (h of valve body (13) 1, h 2, h 3, h 4) not connected, in the second place of spool, i.e. 45 ° of gear (18) rotations are in tooth bar left line way limit position, passage (h 1) and (h 2) and communicate passage (h 4) and (h 3) communicate, in the 3rd position of spool, promptly the counter-clockwise half-twist of gear (18) is in extreme limit of travel position, tooth bar the right, passage (h 1) and (h 4) communicate passage (h 2) and (h 3) communicate, gear (18) turns clockwise 45 °, and spool (16) returns to primary importance, passage (h 1) be connected passage (h with the pressure source of raw material as medium 2) be connected passage (h with a jar A arrival end 3) be connected passage (h with the gurry delivery pipe 4) be connected with a jar B arrival end.
2, system according to claim 1, the valve body (2) that it is characterized in that said shuttle-type three-way diverter valve has passage (9) to communicate with a jar A arrival end, there is passage (10) to communicate with a jar B arrival end, passage (11) be communicated with as the pressure-source communication of medium or with the gurry delivery pipe with raw material, have the core retainer plate (4) and peg or spindle (5), the valve pocket left end that match to have a left keeper (3) and a left side to drive cylinder (1) in the valve pocket, the valve pocket right-hand member has right keeper (6) and the right cylinder (7) that drives.
3, system according to claim 1 is characterized in that the spool of said shuttle-type three-way diverter valve is connected with valve rod, and valve rod is the piston rod of control cylinder or hydraulic cylinder.
4, system according to claim 1, it is characterized in that first valve is the shuttle-type four-way change-over valve, a passage of shuttle-type four-way change-over valve is communicated with a jar A arrival end, a passage is communicated with a jar B inlet, passage with the pressure-source communication of raw material as medium, a passage is communicated with the gurry delivery pipe, the shuttle chamber of said shuttle-type distributing T-pipe control valve is communicated with three fluid flow ports, a fluid flow port connects the port of export of jar A, a fluid flow port connects the port of export of jar B, fluid flow port product carrier pipe of practicing midwifery has spool and left and right keeper in the shuttle chamber.
5, according to claim 1 or 4 described systems, the spool that it is characterized in that said shuttle-type four-way change-over valve is connected with gear, tooth bar on gear and the cylinder piston rod is in transmission connection, spool has the hole of matching with seal disc, cylinder is connected with source of the gas by magnetic valve, the spool both sides of said shuttle-type distributing T-pipe control valve are connected this two cylinder respectively and are connected with source of the gas by a magnetic valve respectively with the piston rod of a cylinder, magnetic valve connects control appliance, and rib formula distributing T-pipe control valve has check-valves with the fluid flow port that the product carrier pipe is connected.
6, system according to claim 1, it is characterized in that valve (1) is two shuttle-type three-way diverter valves in parallel, two shuttle-type three-way diverter valves respectively have a fluid flow port to be communicated with a jar A and a jar B arrival end, another fluid flow port of a shuttle-type three-way diverter valve with the pressure-source communication of raw material as medium, another fluid flow port of another shuttle-type three-way diverter valve is communicated with the gurry delivery pipe.
7, system according to claim 1 is characterized in that first duty in system, the passage (t of shuttle-type distributing T-pipe control valve 1) and (t 2) be communicated with, the spool of shuttle-type four-way change-over valve (16) is in primary importance, second duty in system, passage (t 1) and (t 3) be communicated with, the time is 15 minutes, the 3rd duty in system, passage (t 1) and (t 3), (t 1) and (t 2) be communicated with, the time is 10 seconds, spool (16) is in the 2nd position, the 4th duty in system, passage (t 2) and (t 3) be communicated with, the time is 15 minutes, the 5th duty in system, passage (t 2) and (t 3), passage (t 2) and (t 1) be communicated with, the time was 10 seconds, spool (16) is in the 3rd position, the passage (t of shuttle-type distributing T-pipe control valve 1) connect the port of export of jar A, passage (t 2) connect the port of export of jar B, passage (t 3) the product carrier pipe of practicing midwifery.
CNB200410081386XA 2004-12-03 2004-12-03 Shuttle type bitank alternating work system Expired - Fee Related CN1305556C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200410081386XA CN1305556C (en) 2004-12-03 2004-12-03 Shuttle type bitank alternating work system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200410081386XA CN1305556C (en) 2004-12-03 2004-12-03 Shuttle type bitank alternating work system

Publications (2)

Publication Number Publication Date
CN1651131A CN1651131A (en) 2005-08-10
CN1305556C true CN1305556C (en) 2007-03-21

Family

ID=34869145

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200410081386XA Expired - Fee Related CN1305556C (en) 2004-12-03 2004-12-03 Shuttle type bitank alternating work system

Country Status (1)

Country Link
CN (1) CN1305556C (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07174074A (en) * 1993-09-25 1995-07-11 Kazutoshi Ogawa Three-position valve operating system on pneumatic type reciprocating pump
US5944054A (en) * 1998-01-14 1999-08-31 Saieva; Carl J. Valve for breathing systems
US6684834B2 (en) * 2001-07-14 2004-02-03 Ina-Schaeffler Kg Device to change the timing of gas exchange valves in an internal combustion engine, in particular a rotating piston positioning device to adjust the angle that a camshaft is rotated relative to a crankshaft

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07174074A (en) * 1993-09-25 1995-07-11 Kazutoshi Ogawa Three-position valve operating system on pneumatic type reciprocating pump
US5944054A (en) * 1998-01-14 1999-08-31 Saieva; Carl J. Valve for breathing systems
US6684834B2 (en) * 2001-07-14 2004-02-03 Ina-Schaeffler Kg Device to change the timing of gas exchange valves in an internal combustion engine, in particular a rotating piston positioning device to adjust the angle that a camshaft is rotated relative to a crankshaft

Also Published As

Publication number Publication date
CN1651131A (en) 2005-08-10

Similar Documents

Publication Publication Date Title
US4637783A (en) Fluid motor-pumping apparatus and method for energy recovery
CN1085774C (en) Hydraulically controlled intake/exhaust valve
CN106015137A (en) Multifunctional hydraulic system
CN102230484A (en) Integrated continuous gas-driving hydraulic force booster
CA2752542A1 (en) Hydraulic control system for drilling systems
CN106958546B (en) Numeric type hydraulic transformer
CN1305556C (en) Shuttle type bitank alternating work system
CN200946604Y (en) Pneumatic execution mechanism with hydraulic type hand-operated device
CN102220864B (en) Hydraulic control system for rotation system of horizontal directional drilling machine
CN1926311A (en) A method of generating pressure pulses, a pressure pulse generator and a piston engine provided therewith
CN2777258Y (en) Two direction two-stage air-liquid transmission type pressure booster
CN211900896U (en) Double-plunger pump
CN1807903A (en) Hydraulic system
CN1285839C (en) Actuator for driving valve
RU2018120596A (en) METHOD AND DEVICE FOR CONTROL OF A HYDRAULICALLY ACTIVATED DRIVE ASSEMBLY OF THE ARMATURE
CN2457363Y (en) Improved pneumatic two-way high pressure liquid pump
CN112343896B (en) Hydraulic control system for large-flow oil cylinder
CN103353007B (en) Pneumatic valve controller and controlling method thereof
CN109915427B (en) Three-pump direct-drive electro-hydrostatic actuator with back pressure control
CN2525271Y (en) Pneumatic plunger mortar grouting pump and mixing machine and automatic mortar mixing and grouting equipment
CN2230854Y (en) Multi-channel valve with three pocerlain sealing plates
CN109307093B (en) Accurate control system for opening of large ball valve
CN202090905U (en) Hydraulic control system for rotating system of horizontal directional drilling machine
US20060159574A1 (en) Piston pump
CN201696726U (en) Energy-saving pneumatic actuator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20170224

Address after: And the center of Sichuan Province in 610041 Haitang No. 2039 Chengdu Tianfu Tianfu Avenue South (Tianfu hit off 16 floor No. 1609)

Patentee after: Sichuan red earth Tianfu Passive Control Technology Co. Ltd.

Address before: 610041 Chengdu South Road, Sichuan, No. four, No. 11

Patentee before: Zeng Xiangwei

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070321

Termination date: 20191203

CF01 Termination of patent right due to non-payment of annual fee