CN206129581U - Emergent pump electric device that opens of fire -fighting water pump machinery - Google Patents
Emergent pump electric device that opens of fire -fighting water pump machinery Download PDFInfo
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- CN206129581U CN206129581U CN201621145748.1U CN201621145748U CN206129581U CN 206129581 U CN206129581 U CN 206129581U CN 201621145748 U CN201621145748 U CN 201621145748U CN 206129581 U CN206129581 U CN 206129581U
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Abstract
The utility model discloses an emergent pump electric device that opens of fire -fighting water pump machinery, including the main water pump motor, conventional major loop circuit to and conventional control circuit circuit, conventional major loop circuit includes a first contactor and an electrothermal relay, first contactor input is connected with the power, and an output and an electrothermal relay input link to each other, isolation transformer's once side input still includes isolation transformer, is connected with the power that conventional control circuit circuit is connected with isolation transformer secondary side output after concatenating switch, still including emergent major loop circuit, emergent major loop circuit includes the first emergent circuit breaker that starts, the first emergent circuit breaker that starts, it is equipped with twist grip and the normally closed auxiliary contact who takes the safety key lock, and its input is connected with the power, and its output is connected with winding head end wiring end, and its normally closed auxiliary contact establishes ties in isolation transformer once inclines the return circuit. The utility model discloses can satisfy the fire control and reform transform the requirement, have economic nature and practicality.
Description
Technical field
This utility model is related to belong to architectural electricity field, and particularly a kind of fire pump mechanical emergency opens pump and electrically fills
Put.
Background technology
On October 1st, 2014, country formally issued the GB20974-2014 for implementing《Fire water-supply and hydrant system technology
Specification》The 11.0.12 article (compulsive clause) specifies：Firefighting Pump Control cabinet should arrange mechanical emergency and open pumping function, and should protect
Demonstrate,prove when the control circuit in switch board breaks down and start fire pump when urgent by the personnel for having administration authority.Machinery should
It is anxious when starting, it should be ensured that fire pump normal work in 5min after warning.
At present there are problems in the Fire Fighting Pump Control cabinet of China, much shadows as switch board can not open pump also occurred
The case of fire extinguishing is rung, mechanical emergency opens pumping function, is exactly in last critical moment, when control circuit breaks down and main power source
Still when intact, fire-fighting pump startup is forced by mechanical emergency starter, this is undoubtedly in tradition opening based on control circuit
On the basis of pumping function, reliability is improve.
Motor drive fire pump controller, includes according to the Starting mode classification of motor：Total head is directly initiated, solid-state is soft
The types such as startup, part winding starting, enclosed star triangle start, open type star triangle start, resistance starting, mechanical emergency start dress
Pressure fire-fighting pump startup is put, the development stage is still at home, foreign countries there are some ripe Motor drive fire pump controllers,
Its operation principle using control water pump catalyst on arrange mechanical emergency start-up operation handle, for mechanically closing
Using control mode, catalyst, realizes that mechanical emergency opens pumping function.This structure needs to transform existing equipment, updates
The elements such as existing catalyst, and the catalyst frame for movement for opening pumping function with mechanical emergency is more complicated, belongs to proprietary pattern,
Cost is higher, and need to rearrange wiring, and man-hour is long, so improvement project amount is big, improvement cost is higher.
Utility model content
This utility model provides one kind and utilizes existing control system to solve technical problem present in known technology, changes
Make the low a kind of fire pump mechanical emergency of process is simple and improvement cost and open pump electric device.
This utility model is adopted the technical scheme that by solving technical problem present in known technology：A kind of fire water
Pump mechanical emergency opens pump electric device, including feed pump motor, drives the conventional main loop circuit of the feed pump motor, and
Control the conventional control loop circuit of the conventional main loop circuit break-make；The feed pump motor includes winding head end terminals
With winding tail end terminals；The conventional main loop circuit includes first contactor and the first thermorelay；First contact
Device, its input are connected with power supply, and its outfan is connected with the input of first thermorelay；First thermorelay
Outfan be connected with the winding head end terminals；Also include isolating transformer, the primary side of the isolating transformer is input into
It is connected with power supply after the concatenation on and off switch of end, the secondary side outfan of the conventional control loop circuit and the isolating transformer
Connection；Also include emergent main loop circuit, the emergent main loop circuit includes the first emergency starting chopper；Described first should
Anxious to start chopper, which is provided with the rotary handle with safety key lock and normally closed auxiliary contact, and its input is connected with power supply, its
Outfan is connected with the winding head end terminals, and its normally closed auxiliary contact is connected on a side loop of the isolating transformer
In.
Further, the conventional main loop circuit also includes the first protective breaker, and the first contactor passes through institute
State the first protective breaker to be connected with power supply.
Further, the feed pump motor is full voltage starting motor, the mutual short circuit of the winding tail end terminals.
Further, also the first standby master of the first reserve pump motor is driven including the first reserve pump motor
Loop circuit, and control the first standby control loop circuit of the first standby main loop circuit break-make；Described first is standby
It is full voltage starting motor with pump motor, which includes the first standby winding head end terminals and the first standby winding tail end wiring
End；The mutual short circuit of the first standby winding tail end terminals；The first standby main loop circuit includes the first standby contact
Device and the first standby thermorelay；The first standby catalyst, its input are connected with power supply, its outfan and described first
The input of standby thermorelay is connected；The outfan of the first standby thermorelay is connect with the described first standby winding head end
Line end connects；The standby control loop circuit is connected with the secondary side outfan of the isolating transformer；It is also standby including first
Emergent main loop circuit, the first standby emergent main loop circuit is used to include the first standby emergency starting chopper；Described
One standby emergency starting chopper, which is provided with the rotary handle with safety key lock and normally closed auxiliary contact, its input and electricity
Source connects, and its outfan is connected with the described first standby winding head end terminals, and its normally closed auxiliary contact is connected on the isolation
In the primary side electric power loop of transformator.
Further, the feed pump motor is star triangle starting motor.
Further, the conventional main loop circuit also includes second contactor and the 3rd catalyst；3rd contact
Device, its input are connected with the winding tail end terminals, the mutual short circuit of its outfan；The second contactor, its input
With the input of the first contactor and connect, its outfan is connected with the winding tail end terminals；The emergent major loop
Circuit also includes the second emergency starting chopper；The second emergency starting chopper, its input is emergent with described first to be opened
The outfan connection of dynamic chopper, its outfan are connected with the winding tail end terminals；The first emergency starting chopper
It is chain with the second emergency starting breaker mechanical, while opening and closing.
Further, also the second standby master of the second reserve pump motor is driven including the second reserve pump motor
Loop circuit, and control the second standby control loop circuit of the second standby main loop circuit break-make；Described second is standby
It is star triangle starting motor with pump motor, which includes the second standby winding head end terminals and the second standby winding tail end wiring
End；The second standby control loop circuit is connected with the secondary side outfan of the isolating transformer；
The second standby main loop circuit includes the second standby catalyst and the second standby thermorelay；Described second is standby
With catalyst, its input is connected with power supply, and its outfan is connected with the input of the described second standby thermorelay；Described
The outfan of two standby thermorelays is connected with the described second standby winding head end terminals；
The second standby main loop circuit also includes the 3rd standby catalyst and the 4th standby catalyst；Described 4th is standby
With catalyst, its input is connected with the described second standby winding tail end terminals, the mutual short circuit of its outfan；Described 3rd is standby
With catalyst, the input of its input and the described second standby catalyst simultaneously connects, its outfan and the described second standby winding
Tail end terminals connect；
Also include the second standby emergent main loop circuit, the second standby emergent main loop circuit include second it is standby should
It is anxious to start chopper；The second standby emergency starting chopper, which is provided with the rotary handle and normally closed auxiliary with safety key lock
Contact is helped, its input is connected with power supply, its outfan is connected with the described second standby winding head end terminals, its normally closed auxiliary
Primary side electric power loop of the contact series in the isolating transformer；The second standby emergent main loop circuit also includes the 3rd
Standby emergency starting chopper；The 3rd standby emergency starting chopper, its input and the described second standby emergency starting
The outfan connection of chopper, its outfan are connected with the described second standby winding tail end terminals；Described second is standby emergent
Start chopper and the 3rd standby emergency starting breaker mechanical is chain, while opening and closing.
This utility model has the advantages and positive effects that：Using existing water pump electric control system, set up emergent
Main loop circuit, is provided with meeting an urgent need for the rotary handle with safety key lock and normally closed auxiliary contact in emergent main loop circuit
Start chopper, in emergency circumstances, safety key lock is opened by manager, rotary handle can start water pump, circuit and machine
Tool simple structure, meets the requirement of new specification waterproof pump control；Can adapt to various types of Firefighting Pump Control cabinets
Mechanical emergency opens pump requirement, and simple with the electrical connection of Firefighting Pump Control cabinet, and fire occurrence time tool is emergent to open pump operated letter
It is single, it is ensured that the reliability of fire pump.It is particularly now many to build the engineering for carrying out fire-fighting transformation, need in original fire water
Increase mechanical emergency on the basis of pump switch board and open pumping function, the present invention can be good at meeting fire-fighting transformation requirement, with economy
Property and practicality.
Description of the drawings
Fig. 1 is that the wiring diagram that mechanical emergency opens pump electric device is set up in separate unit fire pump full voltage starting；
Fig. 2 is that a master one sets up the wiring diagram that mechanical emergency opens pump electric device for fire pump full voltage starting；
Fig. 3 is that the wiring diagram that mechanical emergency opens pump electric device is set up in separate unit fire pump star-angle startup；
Fig. 4 is that a master one sets up the wiring diagram that mechanical emergency opens pump electric device for fire pump star-angle startup.
In figure：Q1, the first protective breaker；QB1, the first stand-by protection chopper；QB2, the second stand-by protection chopper；
QE1, the first emergency starting chopper；QE2, the second emergency starting chopper；QEB1, the first standby emergency starting chopper；
QEB2, the second standby emergency starting chopper；QEB3, the 3rd standby emergency starting chopper；KM1, first contactor；KM2,
Two catalysts；KM3, the 3rd catalyst；KMB1, the first standby catalyst；KMB2, the second standby catalyst；It is KMB3, the 3rd standby
Catalyst；KMB4, the 4th standby catalyst；FR1, the first thermorelay；FRB1, the first standby thermorelay；It is FRB2, second standby
Use thermorelay；TC, isolating transformer；PGW, power supply indicator；FA, fuse；S, on and off switch；
Specific embodiment
For the content of the invention of the present utility model, feature and effect can be further appreciated that, following examples are hereby enumerated, and is coordinated
Accompanying drawing describes in detail as follows：
Fig. 1 to Fig. 4 is referred to, a kind of fire pump mechanical emergency opens pump electric device, including feed pump motor, drives institute
State the conventional main loop circuit of feed pump motor, and the conventional control loop electricity for controlling the conventional main loop circuit break-make
Road；The feed pump motor includes winding head end terminals and winding tail end terminals；The conventional main loop circuit includes
One catalyst KM1 and the first thermorelay FR1；First contactor KM1, its input are connected with power supply, its outfan with
The input of the first thermorelay FR1 is connected；The outfan of the first thermorelay FR1 and the winding head end wiring
End connection；Also include isolating transformer TC, with power supply after the primary side input concatenation on and off switch of the isolating transformer TC
Connection, the conventional control loop circuit are connected with the secondary side outfan of the isolating transformer TC；Also include emergent leading back
Road circuit, the emergent main loop circuit include the first emergency starting circuit breaker Q E1；First emergency starting circuit breaker Q E1,
Which is provided with the rotary handle with safety key lock and normally closed auxiliary contact, and its input is connected with power supply, its outfan with it is described
Winding head end terminals connect, and its normally closed auxiliary contact is connected in a side loop of the isolating transformer TC.Fig. 1 is to figure
4 dashed rectangle represents the first emergency starting circuit breaker Q E1 wiring of the present utility model.
Further, the conventional main loop circuit may also include the first protective breaker Q1, first contactor KM1
It is connected with power supply by the first protective breaker Q1.
Further, the feed pump motor can be full voltage starting motor, the mutual short circuit of the winding tail end terminals.
Further, the first reserve pump motor is may also include, the first of driving the first reserve pump motor is standby
Main loop circuit, and control the first standby control loop circuit of the first standby main loop circuit break-make；Described first
Reserve pump motor can be full voltage starting motor, and which includes that the first standby winding head end terminals and the first standby winding tail end connect
Line end；The mutual short circuit of the first standby winding tail end terminals；The first standby main loop circuit includes that first standby connects
Tentaculum KMB1 and the first standby thermorelay FRB1；The first standby catalyst KMB1, its input are connected with power supply, and which is defeated
The input for going out end thermorelay FRB1 standby with described first is connected；The outfan of the first standby thermorelay FRB1 with
The first standby winding head end terminals connection；The secondary side of the standby control loop circuit and the isolating transformer TC
Outfan connects；Also include the first standby emergent main loop circuit, the first standby emergent main loop circuit includes that first is standby
With emergency starting circuit breaker Q EB1；First standby emergency starting circuit breaker Q EB1, which is provided with the rotation with safety key lock
Handle and normally closed auxiliary contact, its input are connected with power supply, and its outfan is connected with the described first standby winding head end terminals
Connect, its normally closed auxiliary contact is connected in the primary side electric power loop of the isolating transformer TC.
Further, the feed pump motor can be star triangle starting motor.The conventional main loop circuit may also include
Second contactor KM2 and the 3rd catalyst KM3；The 3rd catalyst KM3, its input are connected with the winding tail end terminals
Connect, the mutual short circuit of its outfan；Second contactor KM2, the input of its input and first contactor KM1 is simultaneously
Connect, its outfan is connected with the winding tail end terminals；The emergent main loop circuit may also include the second emergency starting and break
Road device QE2；Second emergency starting circuit breaker Q E2, the outfan of its input and the first emergency starting circuit breaker Q E1
Connection, its outfan are connected with the winding tail end terminals；First emergency starting circuit breaker Q E1 and described second is met an urgent need
Start circuit breaker Q E2 mechanical chain, while opening and closing.
Further, the second reserve pump motor is may also include, the second of driving the second reserve pump motor is standby
Main loop circuit, and control the second standby control loop circuit of the second standby main loop circuit break-make；Described second
Reserve pump motor can be star triangle starting motor, and which includes the second standby winding head end terminals and the second standby winding tail end
Terminals；The second standby control loop circuit is connected with the secondary side outfan of the isolating transformer TC；
The second standby main loop circuit may include the second standby catalyst KMB2 and the second standby thermorelay FRB2；
The second standby catalyst KMB2, its input are connected with power supply, its outfan thermorelay FRB2 standby with described second
Input be connected；The outfan of the second standby thermorelay FRB2 is connected with the described second standby winding head end terminals
Connect；
The second standby main loop circuit may also include the 3rd standby catalyst KMB3 and the 4th standby catalyst KMB4；
The 4th standby catalyst KMB4, its input are connected with the described second standby winding tail end terminals, and its outfan is mutual
Short circuit；The 3rd standby catalyst KMB3, the input of its input catalyst KMB2 standby with described second simultaneously connect, and which is defeated
Go out end to be connected with the described second standby winding tail end terminals；
The second standby emergent main loop circuit is may also include, the second standby emergent main loop circuit may include that second is standby
With emergency starting circuit breaker Q EB2；Second standby emergency starting circuit breaker Q EB2, which is provided with the rotation with safety key lock
Handle and normally closed auxiliary contact, its input are connected with power supply, and its outfan is connected with the described second standby winding head end terminals
Connect, its normally closed auxiliary contact is connected on the primary side electric power loop of the isolating transformer TC；The second standby emergent master returns
Road circuit may also include the 3rd standby emergency starting circuit breaker Q EB3；3rd standby emergency starting circuit breaker Q EB3, which is defeated
Enter end to be connected with the outfan of the described second standby emergency starting circuit breaker Q EB2, its outfan can be with the described second standby winding
Tail end terminals connect；Second standby emergency starting circuit breaker Q EB2 and the 3rd standby emergency starting circuit breaker Q EB3
Mechanical chain, while opening and closing.
The primary side input of the isolating transformer TC can concatenate after fuse FA and on and off switch after S with alternating current 220V
Power supply connects, and the primary side input of the isolating transformer TC can also parallel connection power supply display lamp PGW.
Further, the described first standby main loop circuit may also include the first stand-by protection circuit breaker Q B1, and described first
Standby catalyst KMB1 is connected with power supply by the first stand-by protection circuit breaker Q B1.
Further, the described second standby main loop circuit may also include the second stand-by protection circuit breaker Q B2, and described second
Standby catalyst KMB2 is connected with power supply by the second stand-by protection circuit breaker Q B2.
The electric device that a set of mechanical emergency opens pump is set by Firefighting Pump Control cabinet, and is entered with Firefighting Pump Control cabinet
Row electrical connection.When generation fire, while when Firefighting Pump Control cabinet normally cannot open pump, rotary handle band safety key is locked,
There is personnel's ability opening operation of administration authority.Having administration authority personnel to be first turned on being arranged on this set mechanical emergency, to open pump electric
Safety key lock (safety key lock is arranged on mechanical rotary handle) on device, then rotates mechanical rotary handle, carrys out machine
Tool emergency starting fire pump.Corresponding fire pump mechanical emergency starts, while secondary control loop failure, prevents linear quadratic control
Loop misoperation.
The fire pump mechanical emergency of other starting modes (dual-purpose for direct full voltage starting, star delta reduced-voltage starting etc.)
The technical scheme for opening pump is similar with the technical scheme that the present invention is given.
Although being described to preferred embodiment of the present utility model above in conjunction with accompanying drawing, this utility model is not
Above-mentioned specific embodiment is confined to, above-mentioned specific embodiment is only schematic, is not restricted, ability
The those of ordinary skill in domain under enlightenment of the present utility model, without departing from this utility model objective and claimed
Under ambit, many forms can also be made, these are belonged within protection domain of the present utility model.
Claims (7)
1. a kind of fire pump mechanical emergency opens pump electric device, it is characterised in that including feed pump motor, drives the main water
The conventional main loop circuit of pump motor, and control the conventional control loop circuit of the conventional main loop circuit break-make；It is described
Feed pump motor includes winding head end terminals and winding tail end terminals；The conventional main loop circuit includes first contactor
With the first thermorelay；The first contactor, its input are connected with power supply, its outfan and first thermorelay
Input is connected；The outfan of first thermorelay is connected with the winding head end terminals；Also include isolating transformer,
It is connected with power supply after the primary side input concatenation on and off switch of the isolating transformer, the conventional control loop circuit and institute
State the secondary side outfan connection of isolating transformer；Also include emergent main loop circuit, the emergent main loop circuit includes the
One emergency starting chopper；The first emergency starting chopper, which is provided with the rotary handle and normally closed auxiliary with safety key lock
Contact is helped, its input is connected with power supply, its outfan is connected with the winding head end terminals, its normally closed auxiliary contact is connected
In a side loop of the isolating transformer.
2. fire pump mechanical emergency according to claim 1 opens pump electric device, it is characterised in that the routine is led back
Road circuit also includes the first protective breaker, and the first contactor is connected with power supply by first protective breaker.
3. fire pump mechanical emergency according to claim 1 and 2 opens pump electric device, it is characterised in that the main water
Pump motor is full voltage starting motor, the mutual short circuit of the winding tail end terminals.
4. fire pump mechanical emergency according to claim 3 opens pump electric device, it is characterised in that also standby including first
With pump motor, drive the first standby main loop circuit of the first reserve pump motor, and to control described first standby
First standby control loop circuit of main loop circuit break-make；The first reserve pump motor is full voltage starting motor, its bag
Include the first standby winding head end terminals and the first standby winding tail end terminals；The first standby winding tail end terminals phase
Mutual short circuit；The first standby main loop circuit includes the first standby catalyst and the first standby thermorelay；Described first is standby
With catalyst, its input is connected with power supply, and its outfan is connected with the input of the described first standby thermorelay；Described
The outfan of one standby thermorelay is connected with the described first standby winding head end terminals；The standby control loop circuit with
The secondary side outfan connection of the isolating transformer；Also include the first standby emergent main loop circuit, described first it is standby should
Anxious main loop circuit includes the first standby emergency starting chopper；The first standby emergency starting chopper, which is provided with band peace
The rotary handle and normally closed auxiliary contact of full key lock, its input are connected with power supply, its outfan it is standby with described first around
The terminals connection of group head end, its normally closed auxiliary contact are connected in the primary side electric power loop of the isolating transformer.
5. fire pump mechanical emergency according to claim 1 and 2 opens pump electric device, it is characterised in that the main water
Pump motor is star triangle starting motor.
6. fire pump mechanical emergency according to claim 5 opens pump electric device, it is characterised in that the routine is led back
Road circuit also includes second contactor and the 3rd catalyst；3rd catalyst, its input and the winding tail end wiring
End connection, the mutual short circuit of its outfan；The second contactor, the input of its input and the first contactor simultaneously connect,
Its outfan is connected with the winding tail end terminals；The emergent main loop circuit also includes the second emergency starting chopper；
The second emergency starting chopper, its input are connected with the outfan of the first emergency starting chopper, its outfan
It is connected with the winding tail end terminals；The first emergency starting chopper and the second emergency starting breaker mechanical connect
Lock, while opening and closing.
7. fire pump mechanical emergency according to claim 6 opens pump electric device, it is characterised in that also standby including second
With pump motor, drive the second standby main loop circuit of the second reserve pump motor, and to control described second standby
Second standby control loop circuit of main loop circuit break-make；The second reserve pump motor is star triangle starting motor, its
Including the second standby winding head end terminals and the second standby winding tail end terminals；The second standby control loop circuit with
The secondary side outfan connection of the isolating transformer；
The second standby main loop circuit includes the second standby catalyst and the second standby thermorelay；Described second standby connects
Tentaculum, its input are connected with power supply, and its outfan is connected with the input of the described second standby thermorelay；Described second is standby
It is connected with the described second standby winding head end terminals with the outfan of thermorelay；
The second standby main loop circuit also includes the 3rd standby catalyst and the 4th standby catalyst；Described 4th standby connects
Tentaculum, its input are connected with the described second standby winding tail end terminals, the mutual short circuit of its outfan；Described 3rd standby connects
Tentaculum, the input of its input and the described second standby catalyst simultaneously connect, its outfan and the described second standby winding tail end
Terminals connect；
Also include the second standby emergent main loop circuit, the second standby emergent main loop circuit includes that the second standby meeting an urgent need is opened
Dynamic chopper；The second standby emergency starting chopper, which is provided with the rotary handle with safety key lock and normally closed auxiliary is touched
Point, its input are connected with power supply, and its outfan is connected with the described second standby winding head end terminals, its normally closed auxiliary contact
It is connected on the primary side electric power loop of the isolating transformer；The second standby emergent main loop circuit is also standby including the 3rd
Emergency starting chopper；The 3rd standby emergency starting chopper, its input and the described second standby emergency starting open circuit
The outfan connection of device, its outfan are connected with the described second standby winding tail end terminals；The second standby emergency starting
Chopper and the 3rd standby emergency starting breaker mechanical are chain, while opening and closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145748.1U CN206129581U (en) | 2016-10-21 | 2016-10-21 | Emergent pump electric device that opens of fire -fighting water pump machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145748.1U CN206129581U (en) | 2016-10-21 | 2016-10-21 | Emergent pump electric device that opens of fire -fighting water pump machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129581U true CN206129581U (en) | 2017-04-26 |
Family
ID=58573895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145748.1U Active CN206129581U (en) | 2016-10-21 | 2016-10-21 | Emergent pump electric device that opens of fire -fighting water pump machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178489A (en) * | 2017-07-13 | 2017-09-19 | 成都鑫富达电气制造有限公司 | Integrated electric and machinery opens pump installation |
-
2016
- 2016-10-21 CN CN201621145748.1U patent/CN206129581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178489A (en) * | 2017-07-13 | 2017-09-19 | 成都鑫富达电气制造有限公司 | Integrated electric and machinery opens pump installation |
| CN107178489B (en) * | 2017-07-13 | 2019-08-02 | 成都鑫富达电气制造有限公司 | Integrated electrical and machinery opens pump installation |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 300072 Tianda architectural creative building (Science and Technology Park), No.192, Anshan West Road, Nankai District, Tianjin Patentee after: Tianjin University architectural design and Planning Research Institute Co.,Ltd. Address before: No.192 Anshan West Road, Nankai District, Tianjin 300073 Patentee before: TIANJIN University RESEARCH INSTITUTE OF ARCHITECTRUAL DESIGN & URBAN PLANNING |
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| CP03 | Change of name, title or address |