CN109281840A - Non-suction head velocity fluctuation pump, water pump assemble method and its control method - Google Patents
Non-suction head velocity fluctuation pump, water pump assemble method and its control method Download PDFInfo
- Publication number
- CN109281840A CN109281840A CN201810968265.9A CN201810968265A CN109281840A CN 109281840 A CN109281840 A CN 109281840A CN 201810968265 A CN201810968265 A CN 201810968265A CN 109281840 A CN109281840 A CN 109281840A
- Authority
- CN
- China
- Prior art keywords
- water
- pump
- motor
- pressure sensor
- controller
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 193
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 239000008400 supply water Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 34
- 230000013011 mating Effects 0.000 description 19
- 238000010586 diagram Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011897 real-time detection Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of non-suction head velocity fluctuation pump, water pump assemble method and its control methods.Water pump includes motor, the pump housing and controller, the pump housing includes the impeller assembly of shell and setting in the housing, water inlet cavity and water outlet cavity are formed in the shell, the motor is used to drive the wheel rotation in the impeller assembly, the motor is connect with the controller, the outside of the shell is fixedly installed the first connecting tube, the first detection hole for being connected to the water inlet cavity is also provided on the shell, intake pressure sensor is sealedly connected in first detection hole, the signal wire of the intake pressure sensor passes through first connecting tube and connect with the controller.It realizes water pump compact overall structure, facilitates in-site installation, and improve its use reliability.
Description
Technical field
The present invention relates to water work technical field more particularly to a kind of non-suction head velocity fluctuation pump, water pump assemble method and
Its control method.
Background technique
Currently, water pump in the prior art, measure its service performance be all using the suction of water pump as standard, water pump
Suction is higher, and to represent its performance better.Therefore, water pump in the prior art is to increase suction as the starting point of design research and development.
But for the place using city planting ductwork pipeline direct weighting, water pump in the prior art crosses conference to municipal administration due to suction
Pipe network pipe causes damages, once there is negative pressure, the medium that city planting ductwork tube capacity is easily inhaled in flat or suck-back pollution pipe network.And it is
It solving the above problems, non-negative pressure unitized supply equipment is then corresponding to be generated, such as: China Patent No. 201120244316.7 disclosure
A kind of non-suction head piped water equipment unit, increase steady flow compensator, the devices such as vacuum compensator, on foundation for water pumps with reality
Now not forming negative pressure to front end pipe network influences.Although non-negative pressure unitized supply equipment can not have an impact front end pipe network,
It is that water pump needs additionally to configure working condition of several corollary equipments to meet no negative pressure, and piping connection and circuit connection are very
It is cumbersome, lead to that the volume of whole equipment is larger, in-site installation is cumbersome and use reliability is lower.It is tight how a kind of structure is designed
It gathers, use reliability is high and facilitates field erected water pump is the technical problems to be solved by the invention.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of non-suction head velocity fluctuation pump, water pump assemble method and its control
Method processed realizes water pump compact overall structure, facilitates in-site installation, and improve its use reliability.
The present invention provides a kind of water pump, including motor, the pump housing and controller, and the pump housing includes shell and is arranged in institute
The impeller assembly in shell is stated, forms water inlet cavity and water outlet cavity in the shell, the motor is for driving the impeller
Wheel rotation in component, the motor are connect with the controller, and the outside of the shell is fixedly installed the first connecting tube,
It is also provided with the first detection hole for being connected to the water inlet cavity on the shell, is sealedly connected in first detection hole into water
Pressure sensor, the signal wire of the intake pressure sensor pass through first connecting tube and connect with the controller.
The present invention provides a kind of water pump, including motor, the pump housing and controller, and the pump housing includes shell and is arranged in institute
The impeller assembly in shell is stated, forms water inlet cavity and water outlet cavity in the shell, the motor is for driving the impeller
Wheel rotation in component, the motor are connect with the controller, and the outside of the shell is fixedly installed the first connecting tube,
The one end sealing of first connecting tube is connected to the water inlet cavity, and the other end is sealedly connected with intake pressure sensor,
The signal wire of the intake pressure sensor is connect with the controller.
Further, the discharge pressure sensor for detecting the water outlet cavity hydraulic pressure is additionally provided on the shell,
The discharge pressure sensor is connect with the controller.
Further, the shell includes the pump seat, sleeve and pump head being successively tightly connected, the company of being provided on the pump head
Joint chair, the motor are fixed on the attachment base, and the one end of first connecting tube is fixed on the pump seat, and described
The other end of one connecting tube is fixed on the attachment base；Signal output terminal, the water inlet are provided on the attachment base
The signal wire of the signal wire of pressure sensor and the discharge pressure sensor passes through the signal output terminal and institute respectively
State controller connection.
Further, the second detection hole for being connected to the water outlet cavity, second detection hole are offered on the pump head
It is sealedly connected with the discharge pressure sensor.
Further, the third detection hole for being connected to the water outlet cavity, the third detection hole are offered on the pump seat
It is sealedly connected with the discharge pressure sensor, the outside of the shell is fixedly installed the second connecting tube, the discharge pressure
The signal wire of sensor passes through second connecting tube and connect with the controller.
Further, the controller is arranged on the motor, is provided on the motor and the signal output end
The signal input terminal that son is used cooperatively, the signal input terminal are connect by cable with the controller, and the signal is defeated
Terminal is connect with the signal input terminal out.
Further, the signal wire of the intake pressure sensor and the signal wire of the discharge pressure are via the connection
The inside of seat is connect with the signal output terminal, the cable of the signal input terminal via the motor case inside and
The controller connection.
The present invention also provides a kind of assemble methods of above-mentioned water pump, comprising:
Step 1, during assembling the pump housing, the first connecting tube is fixed on to the outside of pump housing shell；
Intake pressure sensor is connect by step 2 with the first connecting tube；
The signal wire of intake pressure sensor is connect by step 3 with signal output terminal, then, signal is installed on attachment base
Output terminal, and attachment base is fixed on pump head；
Step 4 inputs a signal into terminal and is connect with controller by cable, then signal input terminal is mounted on the axis of motor
On end face, and motor is fixed on attachment base, while motor is installed in place, signal input terminal and signal output terminal connect
It is connected together.
The present invention also provides a kind of control method of above-mentioned water pump, the water inlet of water pump is connect with water supply network, is being supplied water
For pipe network into water pump water supply process, the control method includes normal hydraulic pressure water supply pattern and low hydraulic pressure water supply pattern；
Under normal hydraulic pressure water supply pattern: intake pressure sensor detects the pressure value of water in intake antrum body not less than setting
When pressure of supply water value P1, controller controls motor and operates normally；
Under low hydraulic pressure water supply pattern: intake pressure sensor detects water supply of the pressure value lower than setting of water in intake antrum body
When pressure value P 1, controller reduces the running frequency of motor, to ensure that intake pressure sensor detects water in intake antrum body
Pressure of supply water value P2 of the pressure value not less than setting；And when intake pressure sensor detects that the pressure value of water in intake antrum body is low
When the pressure of supply water value P2 of setting, then controller stops motor operation；Wherein, P1 > P2.
Compared with prior art, the advantages and positive effects of the present invention are: non-suction head velocity fluctuation pump provided by the invention, water
Assemble method and its control method are pumped, by the way that intake pressure sensor is arranged on the pump housing, in this way, passing through in water supply process
Intake pressure sensor being capable of the intracorporal hydraulic pressure of real-time detection intake antrum, it is ensured that not will form negative pressure in intake antrum body, to guarantee
Water supply network will not generate negative pressure, realize the effect of non-negative pressure method of water supply, mend without additionally configuring steady flow compensator and vacuum
Repay the equipment such as device, it is only necessary to which water pump is connect by scene with water supply network, can realize that no negative pressure is supplied using only water pump itself
Water, non-suction head water pump compact overall structure, facilitates in-site installation；And the connecting tube of pump housing exterior arrangement can be used for as needed
The signal wire cabling of intake pressure sensor uses or for the intracorporal water of intake antrum to be drained at intake pressure sensor
Indirectly detection hydraulic pressure is carried out, avoids External cable mixed and disorderly and occurs dragging the case where being damaged because wearing or pulling, improving makes
Use reliability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of water pump of the present invention；
Fig. 2 is the structural schematic diagram one of inserting terminal component of the present invention；
Fig. 3 is the structural schematic diagram one of signal output terminal of the present invention；
Fig. 4 is the structural schematic diagram of signal output terminal in Fig. 3；
Fig. 5 is the structural schematic diagram of signal input terminal in Fig. 3；
Fig. 6 is the structural schematic diagram two of inserting terminal component of the present invention；
Fig. 7 is the structural schematic diagram three of inserting terminal component of the present invention；
Fig. 8 is the structural schematic diagram of signal output terminal in Fig. 7.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present embodiment water pump, including motor 1, the pump housing 2 and controller 3, the pump housing 2 include shell 21 with
And the impeller assembly 22 in the shell 21 is set, water inlet cavity 201 and water outlet cavity 202, institute are formed in the shell 21
Motor 1 is stated for driving the wheel rotation in the impeller assembly 22, the motor 1 is electrically connected with the controller 3, controller
3 are mounted on the shell 21 of motor 1, and the pump housing 2 is provided with the intake pressure sensor for detecting hydraulic pressure in water inlet cavity 201
41, and the outside of the shell 21 is fixedly installed connecting tube 22, wherein connecting tube 22 can directly connect with water inlet cavity 201
The water for conveying water inlet cavity 201 is connect, alternatively, connecting tube 22 is used to make for the signal wire cabling of intake pressure sensor 41
With.It is illustrated so that connecting tube 22 is used for for the signal wire cabling use of intake pressure sensor 41 as an example as follows.And controller 3
It can be fixed on the shell of motor 1, it is preferred that controller 3, which can integrate, to be arranged inside motor 1, such as: in can using
State's patent No. 201510370734.3,201510525002.7,201510370837.X, 201510370845.4,
Motor form in 201510370992.1.
Wherein, shell 21 generally comprises pump seat 211 described in the pump seat 211, sleeve 212 and pump head 213 being successively tightly connected
On be also provided with the first detection hole (unmarked) for being connected to the water inlet cavity 201, be sealedly connected in first detection hole
Intake pressure sensor 41, the signal wire of the intake pressure sensor 41 pass through the connecting tube 22 and connect with the controller 3
It connects.Specifically, the intake pressure for detecting water pressure in water inlet cavity 201 is arranged in the present embodiment water pump on pump seat 211
Sensor 41, since the water inlet of the pump housing 2 is connect with water supply network, then, the size and water supply network of 201 hydraulic pressure of cavity of intaking
Water pressure it is identical, the hydraulic pressure value that intake pressure sensor 41 detects can reflect the hydraulic pressure value of water supply network, this
Sample, in actual use, by the hydraulic pressure of 41 real-time detection of intake pressure sensor water inlet cavity 201, to pass through controller control
The operation power of motor processed makes the hydraulic pressure in water inlet cavity 201 not less than zero, can realize the effect of non-negative pressure method of water supply.This
Embodiment water pump feeds back to controller 3 using the hydraulic pressure value that intake pressure sensor 41 detects, and is dynamically adjusted by controller 3
The running frequency of motor 1 is saved, to guarantee that water inlet cavity 201 will not generate negative pressure, realization will not generate bad shadow to water supply network
It rings, realizes the purpose of non-negative pressure method of water supply.Due to the water inlet of the pump housing 2 be typically remote from motor 1 side arrangement, and the pump housing 2 go out
The mouth of a river can then be arranged close to or far from the side of motor 1 as needed, corresponding, and the water inlet cavity 201 of the pump housing 2 is then same remote
Side arrangement from motor 1, in this way, the intake pressure sensor 41 of hydraulic pressure is just far from pump head directly in detection water inlet cavity 201
The motor 1 installed on 213, the signal wire of intake pressure sensor 41 can be by 22 cloth of connecting tube that are arranged outside shell 21
(such as: stainless steel tube) is made of hard tubing for line, connecting tube 22, and connecting tube 22 is fixed on the external one side energy of shell 21
Enough effective unified guidance signal wire cablings, on the other hand can also protect signal wire, avoid signal wire from being exposed at outer
Portion and and occur because wearing or pulling dragging the case where being damaged.Preferably, constant pressure water supply, the pump housing are provided to user terminal in order to realize
The discharge pressure sensor 42 for detecting water outlet 202 hydraulic pressure of cavity, the discharge pressure are additionally provided on 2 shell 21
Sensor 42 is connect with the controller 3.Specifically, discharge pressure sensor 42 is for detecting connection water outlet cavity in water pump
The discharge pressure of 202 water outlet, that is, the pipe network pressure of supply water of user terminal, detect according to discharge pressure sensor 42
Pressure value feed back to controller 3, controller 3 can adjust the frequency of motor 1, so that discharge pressure sensor 42 detects
Pressure value keep stablize, to realize constant pressure water supply.Discharge pressure sensor 42, which can according to need, is mounted on pump seat 211 or pump
On first 213, for installing discharge pressure sensor 42 on pump head 213, the connection water outlet cavity is offered on pump head 213
202 the second detection hole, second detection hole are sealedly connected with the discharge pressure sensor 42；For on pump seat 211
Discharge pressure sensor 42 is installed, then offers the third detection hole for being connected to the water outlet cavity 202, third inspection on pump seat 211
Gaging hole is sealedly connected with the discharge pressure sensor 42, can be configured with two connecting tubes 22, a connecting tube outside shell 21
22 are used for the signal wire cabling of intake pressure sensor 41, and another connecting tube 22 is then used for the signal of discharge pressure sensor 42
Line cabling.
At the same time, the feelings of the water for conveying water inlet cavity 201 are directly connect with water inlet cavity 201 for connecting tube 22
Under condition, then intake pressure sensor 41 and discharge pressure sensor 42 are installed on pump head 213, and the one end of connecting tube 22 is close
Envelope is connected to the water inlet cavity 201, and the other end and intake pressure sensor 41 are tightly connected, the intake pressure sensor 41
Signal wire connect with the controller 3, and for the mounting means of discharge pressure sensor 42, then directly on pump head 213
The through-hole of connection water outlet cavity 202 is opened up, discharge pressure sensor 42 is tightly connected in through-holes, in use,
Water in water inlet cavity 201 also enters in connecting tube 22, in this way, intake pressure sensor 41 passes through detection hydraulic pressure sense channel
The pressure of middle water can indirectly detect the hydraulic pressure in water inlet cavity 201.Meanwhile intake pressure sensor 41 is mounted on outside
Shell 21 facilitates line between intake pressure sensor 41 and controller 3 on the end of motor 1.Importantly, at the scene
When installation, it is only necessary to connect the water inlet of the pump housing 2 with water supply network, then by the pipe network of the water outlet of the pump housing 2 and user terminal
Connection can complete in-site installation, simplify field erected process, improve in-site installation efficiency.
Wherein, in actual use, the water inlet of water pump is connect with water supply network, the water outlet of water pump and user terminal
After pipe network connection, the control method of water pump is specific as follows:
In water supply network into water pump water supply process, the control method includes normal hydraulic pressure water supply pattern and low hydraulic pressure water supply mould
Formula.
Under normal hydraulic pressure water supply pattern: intake pressure sensor 41 detect into water in water cavity 201 pressure value not
Lower than setting pressure of supply water value P1 when, controller 3 control motor 1 operate normally.Specifically, when water supply network water-supply quantity fills
When sufficient, the pressure of supply water value of water supply network will be greater than the pressure of supply water value P1 of setting, at this point, intake pressure sensor 41 detects
The pressure value of water feeds back to controller 3 in water inlet cavity 201, then controller 3 can control the normal operation of motor 1, according to
The pressure of supply water requirement of the pipe network of family terminal, the pressure of supply water value of the pipe network of user terminal are P0, then controller 3 controls motor 1
Running frequency is improved, until pressure of supply water needed for the pipe network of pressure value and user terminal that discharge pressure sensor 42 detects
Value P0 is identical, and then, controller 3 controls the fixed frequency of motor 1 and runs, at this point, the frequency of the fixed frequency operation of motor 1 can satisfy water outlet pressure
Pressure of supply water value P0 needed for the pressure value that force snesor 42 detects is always maintained at the pipe network with user terminal is identical, so that water
Pump carries out constant pressure water supply.Wherein, above scheme is to increase water pump by the operation of control motor 1 in the case where P0 is greater than P1
Pressure of supply water value requirement needed for being discharged pipe network of the hydraulic pressure of cavity 202 to meet user terminal；And when P0 is less than P1, then it controls
Device 3 processed can control 1 break-off of motor, only rely on water supply network hydraulic pressure can realize to the pipe network of user terminal into
Row supplies water, in this way, the operation energy consumption of non-suction head water pump can be reduced greatly.
Under low hydraulic pressure water supply pattern: intake pressure sensor 41 detects that the pressure value into water in water cavity 201 is lower than
When the pressure of supply water value P1 of setting, controller 3 reduces the running frequency of motor 1, to ensure that intake pressure sensor 41 detects
Pressure of supply water value P2 of the pressure value of water not less than setting in water inlet cavity 201；And when intake pressure sensor 41 detect into
When the pressure value of water is lower than the pressure of supply water value P2 set in water chamber 201, then controller 3 stops the operation of motor 1；Wherein, P1 >
P2.Specifically, the pressure of supply water value of water supply network will be less than the pressure of supply water value of setting when water supply network water-supply quantity deficiency
P1, when intake pressure sensor 41 detects the pressure value into water in water cavity 201 lower than P1, intake pressure sensor 41 is fed back
To controller 3, then controller 3, which can control motor 1, reduces running frequency, also, ensures simultaneously into water in water cavity 201
Pressure of supply water value P2 of the pressure value not less than setting, wherein pressure of supply water value P2 is that the pressure value of water in water inlet cavity 201 is close
The setting of value near zero-pressure, P2 occurrence can be set according to actual needs, herein with no restrictions, by reducing motor
1 running frequency can weaken the pumpage of water pump, to ensure that negative pressure will not be caused to water supply network in water supply process.
And as the pressure of supply water of water supply network continues to decline, when intake pressure sensor 41 detects the pressure into water in water cavity 201
When force value is lower than P2, then controller 3 is run motor 1 is stopped, to guarantee that water supply network will not generate negative pressure.
Further, it can then be adopted between pressure sensor and controller 3 in order to realize reliable and effective convenient installation
It is realized with inserting terminal component 5 and is electrically connected between pressure sensor and controller 3, specifically, inserting terminal component 5 includes signal
Output terminal 51 and signal input terminal 52 are provided with signal output terminal 51, the intake pressure sensor on attachment base 23
The signal wire of 41 signal wire and the discharge pressure sensor 42 is connect with signal output terminal 51 respectively, corresponding,
Signal input terminal 52 is provided on the motor 1, the cable of the signal input terminal 52 is walked by the enclosure interior of motor 1
Line is simultaneously connect with the controller 3, and in 1 assembling process of motor, signal input terminal 52 is just assembled on motor 1, meanwhile, control
Device 3 processed is also mounted on motor 1, and the processing assembling process of motor 1 just completes between controller 3 and signal input terminal 52
Electrical connection, likewise, the pump housing 2 is in an assembling process, pressure sensor, signal output terminal 51 are just mounted on the pump housing 2 together,
In this way, directly motor 1 can be installed on the attachment base 23 on the pump housing 2, in final assembling link at this point, signal is defeated
While terminal 51 and the just plug connection of signal input terminal 52 out, motor 1 and the pump housing 2 are completed, pressure sensor just with
Controller 3 realizes good electrical connection, without in the erecting bed of water pump, carrying out the connection and wiring of electric component again,
So that water pump overall appearance is more succinct, user experience is improved.Wherein, in order to realize signal output terminal 51 and signal input
Firm grafting electrical connection between terminal 52, as shown in figs 2-4, signal output terminal 51 include the first pedestal 511 and set
Multiple plug divisions 512 on first pedestal 511 are set, the signal input terminal 52 includes the second pedestal 521 and sets
Multiple mating portions 522 on second pedestal 521 are set, the plug division 512 with the corresponding grafting for matching
522 plug connection of conjunction portion, the mating portion 522 are electrically connected by cable with the controller 3, first pedestal 511
It is arranged on the attachment base 23, second pedestal 521 is arranged on the motor 1.Specifically, 51 He of signal output terminal
Signal input terminal 52 is installed by corresponding pedestal respectively, and electrical connections then pass through plug division 512 and insert
It connects auxiliary section 522 and carries out plug connection, in this way, can realize 512 He of plug division during motor 1 and the pump housing 2 assemble
Mating portion 522 is attached, and is realized the circuit connection synchronously completed between pressure sensor and controller 3, is simplified group
The process of dress.And in order to improve the reliability of plug connection, the first mounting hole is offered on first pedestal 511, described
Slidable slide 513 is provided in one mounting hole, 512 insulation set of plug division is on the slide 513, the slide
It is additionally provided with reset spring 514 between 513 and first pedestal 511, specifically, the process assembled in motor 1 and the pump housing 2
In, during motor 1 is installed to attachment base 23, as motor 1 moves closer to attachment base 23, plug division 512 and mating
Portion 522 is close to each other and contacts, when touching attachment base 23 with motor 1 and be fixed on attachment base 23, plug division 512 and insert
Auxiliary section 522 is connect to be abutted against each other together, also, plug division 512 by mating portion 522 promotion so that slide 513 is mobile
And compression reseting spring 514, in this way, under the elastic force effect of reset spring 514, it can be ensured that plug division 512 and mating
The good contact in portion 522 electrical connection, likewise, can also be configured in the second pedestal 521 according to the design needs slidable sliding
Seat, specific structure configuration refer to the above-mentioned mode that slidable slide 513 is configured in the first pedestal 511, and details are not described herein.
The second mounting hole is offered on slide 513, the first insulating base 515 is provided in second mounting hole, and the plug division 512 is set
It sets on first insulating base 515, third mounting hole is offered on second pedestal 521, is set in the third mounting hole
It is equipped with the second insulating base 523, the mating portion 522 is arranged on second insulating base 523, corresponds to by insulating base
Installation plug division 512 and mating portion 522 so that mutually insulated between each plug division 512, likewise, making each
Mutually insulated between mating portion 522；And the performance entity in plug division 512 and mating portion 522 can there are many form,
Such as: the plug division 512 is contact pin, and the mating portion 522 is socket；Alternatively, the plug division 512 is socket, institute
Stating mating portion 522 is contact pin.Preferably, good in order to be carried out during grafting to plug division 512 and mating portion 522
Good protection, the outer end of plug division 512 are located at the inside of the outer end face of second mounting hole, mating portion 522 outside
End is located at the inside of the outer end face of the third mounting hole, and the outer end of the slide 513 extend out to first pedestal 511
Outside, between the outer wall of the slide 513 and the hole wall of the third mounting hole formed guide support sliding pair, specifically,
Plug division 512 is located in the second mounting hole, and the outer end of plug division 512 does not expose the second mounting hole, likewise, mating portion
522 be located at third mounting hole in, the outer end in mating portion 522 does not expose the second mounting hole, in this way, by motor 1 and pump
Body 2 carries out in assembling process, and slide 513 will be initially inserted into third mounting hole, the process that slide 513 is slided in third mounting hole
In, it is cooperated by slide 513 and third mounting hole and carries out guide support, enable plug division 512 and mating portion 522
It is enough to be smoothly plugged in together, avoid because shaking cause plug division 512 and mating portion 522 not on the same line due to occur
The case where plug in trouble, occurs.Further, as shown in figure 5, on first pedestal 511 and on second pedestal 521
It is respectively arranged with cable plug 53, the cable plug 53 includes plug 531 and a plurality of signal cable 532,531 edge of plug
Form the conducting ring 533 of a plurality of insulation gap arrangement on length direction, the conducting ring 533 and the corresponding signal cable
532 electrical connections；On first pedestal 511 and it is respectively arranged with jack (unmarked) on second pedestal 521, it is each described
Plug division 512 is provided with the first conductive part 5121, Mei Gesuo extended to inside jack described in first pedestal 511
It states mating portion 522 and is provided with the second conductive part 5221 extended to inside jack described in second pedestal 521,
Multiple first conductive parts 5121 arrange that multiple described second is conductive along the length direction insulation gap of the corresponding jack
Portion 5221 arranges that cable plug 53 is inserted into the first pedestal 511 and inserts along the length direction insulation gap of the corresponding jack
Behind the inside in hole, the conducting ring 533 in the cable plug 53 contacts electrical connection with corresponding first conductive part 5121, likewise,
Cable plug 53 is inserted into the conducting ring 533 and corresponding in the second pedestal 521 behind the inside of jack, in this cable plug 53
Two conductive parts 5221 contact electrical connection, specifically, cable plug 53 is designed analogous to the structure of headset plug, in this way, pressure
The signal cable 532 of the signal line linking line cable plug 53 of sensor, can be quickly defeated with signal by cable plug 53
Terminal 51 connects out, and the corresponding signal cable 532 of cable plug 53 being inserted on signal input terminal 52 then connects with controller 3
Connect, during motor 1 and the individually packaged pump housing 2, can first outside to the signal cable 532 of cable plug 53 with it is corresponding
Pressure sensor or controller 3 are attached, then, when installing signal output terminal 51 and signal input terminal 52, it is only necessary to
Being inserted into corresponding cable plug 53 can complete to connect, without fixed in signal output terminal 51 and signal input terminal 52
The connection for carrying out single wire in narrow space afterwards, improves packaging efficiency.In addition, in order to improve motor 1 and attachment base 23
Between connection reliability and convenience, attachment base 23 is provided with first flange disk 231, is arranged in the axial end of the motor 1
There is second flange disk 11, the first flange disk 231 is bolted with the second flange disk 11, first pedestal
511 are arranged on the first flange disk 231, and second pedestal 521 is arranged on the second flange disk 11.In order to ensure
Inserting terminal component 5 reliable during motor 1 is mounted on attachment base 23 can accurately connect, first flange disk 231
On be provided with the guide post (not shown) of protrusion, offer guide groove (not shown), the guiding on the second flange disk 11
Column is inserted in the guide groove, specifically, being carried out when motor 1 is connect with attachment base 23 by guide post and guide groove cooperation
Guiding, it can be ensured that signal output terminal 51 and signal input terminal 52 are accurately plugged in together.
Likewise, signal output terminal 51 can also be carried out with signal input terminal 52 in such a way that headset plug connects
Plug connection, specifically, as Figure 6-Figure 8, signal output terminal 51 includes the first pedestal 511 and is arranged described first
Plug 512 on pedestal 511, the plug 512 form the conductive ring 5121 of a plurality of insulation gap arrangement on along its length, often
A conductive ring 5121 is connected with the first cable 510 extending out to outside first pedestal 511；The signal input terminal
521 include the second pedestal 521 and the jack base 522 being arranged on second pedestal 521, the jack of the jack base 522
In be provided with conductive part 5221 with multiple mutually insulateds of the conductive ring 5121 cooperation, each conductive part 5221 connects
There is the second cable 520 extending out to outside second pedestal 521；Second cable 520 is electrically connected with the controller 3,
First pedestal 511 is arranged on the attachment base 23, and second pedestal 521 is arranged on the motor 1.Specifically,
During grafting, the plug 512 of signal output terminal 51 is similar to earphone for signal output terminal 51 and signal input terminal 52
The structure type of plug, plug 512 are configured with the conductive ring 5121 of a plurality of insulation gap arrangement, and plug 512 is inserted into jack base
After in 522, conductive ring 5121 will be contacted and be electrically connected with conductive part 5221 corresponding in jack base 522.Wherein, conductive part 5221
It can be realized using modes such as elastic conductive contacts, the structure type of earphone jack can be referred to.Meanwhile and in order to improve grafting
The reliability of connection offers the first mounting hole on first pedestal 511, is provided in first mounting hole slidable
First insulating base 513 is additionally provided with reset spring 514 between first insulating base 513 and first pedestal 511, described
Plug 512 is fixed on first insulating base 513；Second pedestal 521 offers the second mounting hole, and described second
The second insulating base 523 is provided in mounting hole, the jack base 522 is fixed on second insulating base 523, specifically, inserting
First 512 are completely inserted into jack base 522, as motor 1 continues close to the movement of attachment base 23, so that the first insulating base 513 exists
Mobile and compression reseting spring 514 in first mounting hole, in this way, under the elastic force effect of reset spring 514, it can be ensured that plug
512 remain and are completely inserted into jack base 522, with ensure conductive ring 5121 with corresponding conductive part 5221 is good contacts
Electrical connection.Preferably, protection sleeve 515 is provided on first insulating base 513, the protection sleeve 515 is centered around described
The outside of plug 512；After the signal input terminal 52 and 51 plug connection of signal output terminal, the protection sleeve
515 are inserted in second mounting hole, specifically, during signal input terminal 52 and 51 grafting of signal output terminal, with
Two terminals move closer to, protection sleeve 515 be initially inserted into the second mounting hole, then, plug 512 correspondence is inserted into jack
In seat 522, it is oriented to using protection sleeve 515 and the mutual cooperation of the second mounting hole, it can be ensured that plug 512 is accurately inserted into
Into jack base 522, avoid when motor 1 and the pump housing 2 assemble, because plug 512 and jack base 522 misalignment due to lead to plug
512 the case where breaking mode, improve use reliability.
The present invention also provides a kind of assemble methods of above-mentioned water pump, comprising:
Step 1, during assembling the pump housing, the first connecting tube is fixed on to the outside of pump housing shell；
Intake pressure sensor is connect by step 2 with the first connecting tube；
Signal wire is connect by step 3 with signal output terminal, then, signal output terminal is installed on attachment base, and will connection
Seat is fixed on pump head；
Step 4 inputs a signal into terminal and is connect with controller by cable, then signal input terminal is mounted on the axis of motor
On end face, and motor is fixed on attachment base, while motor is installed in place, signal input terminal and signal output terminal connect
It is connected together.Specifically, the cable of signal input terminal via electric machine casing inside cabling and connect with controller.
Compared with prior art, the advantages and positive effects of the present invention are: being sensed by the way that intake pressure is arranged on the pump housing
Device being capable of the intracorporal hydraulic pressure of real-time detection intake antrum by intake pressure sensor, it is ensured that water inlet in this way, in water supply process
It not will form negative pressure in cavity, to guarantee that water supply network will not generate negative pressure, the effect of non-negative pressure method of water supply realized, without volume
The equipment such as outer configuration steady flow compensator and vacuum compensator, it is only necessary to which water pump is connect by scene with water supply network, can be independent
Non-negative pressure method of water supply is realized using water pump itself, and non-suction head water pump compact overall structure facilitates in-site installation；And pump housing exterior arrangement
Connecting tube can be used for the signal wire cabling of intake pressure sensor as needed using or for intake antrum is intracorporal
Water, which is drained at intake pressure sensor, carries out indirectly detection hydraulic pressure, avoids External cable mixed and disorderly and occurs dragging because wearing or pulling
The case where being damaged improves use reliability.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of non-suction head velocity fluctuation pump, including motor, the pump housing and controller, the pump housing includes shell and is arranged described
Impeller assembly in shell forms water inlet cavity and water outlet cavity in the shell, and the motor is for driving the impeller sets
Wheel rotation in part, the motor are connect with the controller, which is characterized in that the outside of the shell is fixedly installed
One connecting tube is also provided with the first detection hole for being connected to the water inlet cavity on the shell, seals in first detection hole
It is connected with intake pressure sensor, the signal wire of the intake pressure sensor passes through first connecting tube and the controller
Connection.
2. a kind of non-suction head velocity fluctuation pump, including motor, the pump housing and controller, the pump housing includes shell and is arranged described
Impeller assembly in shell forms water inlet cavity and water outlet cavity in the shell, and the motor is for driving the impeller sets
Wheel rotation in part, the motor are connect with the controller, which is characterized in that the outside of the shell is fixedly installed
The one end sealing of one connecting tube, first connecting tube is connected to the water inlet cavity, and the other end is sealedly connected with influent pressure
The signal wire of force snesor, the intake pressure sensor is connect with the controller.
3. non-suction head velocity fluctuation pump according to claim 1 or 2, which is characterized in that be additionally provided with and be used on the shell
The discharge pressure sensor of the water outlet cavity hydraulic pressure is detected, the discharge pressure sensor is connect with the controller.
4. non-suction head velocity fluctuation pump according to claim 3, which is characterized in that the shell includes successively being tightly connected
Pump seat, sleeve and pump head are provided with attachment base on the pump head, and the motor is fixed on the attachment base, and described first connects
The one end of adapter tube is fixed on the pump seat, and the other end of first connecting tube is fixed on the attachment base；It is described
It is provided with signal output terminal on attachment base, the signal wire of the intake pressure sensor and the discharge pressure sensor
Signal wire passes through the signal output terminal respectively and connect with the controller.
5. non-suction head velocity fluctuation pump according to claim 4, which is characterized in that it is described out to offer connection on the pump head
Second detection hole of water chamber, second detection hole are sealedly connected with the discharge pressure sensor.
6. non-suction head velocity fluctuation pump according to claim 4, which is characterized in that it is described out to offer connection on the pump seat
The third detection hole of water chamber, the third detection hole are sealedly connected with the discharge pressure sensor, the outside of the shell
It is fixedly installed the second connecting tube, the signal wire of the discharge pressure sensor passes through second connecting tube and the controller
Connection.
7. non-suction head velocity fluctuation pump according to claim 4, which is characterized in that the controller is arranged in the motor
On, the signal input terminal being used cooperatively with the signal output terminal, the signal input terminal are provided on the motor
It is connect by cable with the controller, the signal output terminal is connect with the signal input terminal.
8. non-suction head velocity fluctuation pump according to claim 7, which is characterized in that the signal wire of the intake pressure sensor
It is connect via the inside of the attachment base with the signal output terminal with the signal wire of the discharge pressure, the signal input
The cable of terminal is connect via the case inside of the motor with the controller.
9. a kind of assemble method of the water pump as described in claim 1-8 is any characterized by comprising
Step 1, during assembling the pump housing, the first connecting tube is fixed on to the outside of pump housing shell；
Intake pressure sensor is connect by step 2 with the first connecting tube；
The signal wire of intake pressure sensor is connect by step 3 with signal output terminal, then, signal is installed on attachment base
Output terminal, and attachment base is fixed on pump head；
Step 4 inputs a signal into terminal and is connect with controller by cable, then signal input terminal is mounted on the axis of motor
On end face, and motor is fixed on attachment base, while motor is installed in place, signal input terminal and signal output terminal connect
It is connected together.
10. a kind of control method of non-suction head velocity fluctuation pump a method as claimed in any one of claims 1-8, which is characterized in that water pump
Water inlet is connect with water supply network, and in water supply network into water pump water supply process, the control method includes that normal hydraulic pressure supplies water
Mode and low hydraulic pressure water supply pattern；
Under normal hydraulic pressure water supply pattern: intake pressure sensor detects the pressure value of water in intake antrum body not less than setting
When pressure of supply water value P1, controller controls motor and operates normally；
Under low hydraulic pressure water supply pattern: intake pressure sensor detects water supply of the pressure value lower than setting of water in intake antrum body
When pressure value P 1, controller reduces the running frequency of motor, to ensure that intake pressure sensor detects water in intake antrum body
Pressure of supply water value P2 of the pressure value not less than setting；And when intake pressure sensor detects that the pressure value of water in intake antrum body is low
When the pressure of supply water value P2 of setting, then controller stops motor operation；Wherein, P1 > P2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968265.9A CN109281840A (en) | 2018-08-23 | 2018-08-23 | Non-suction head velocity fluctuation pump, water pump assemble method and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810968265.9A CN109281840A (en) | 2018-08-23 | 2018-08-23 | Non-suction head velocity fluctuation pump, water pump assemble method and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109281840A true CN109281840A (en) | 2019-01-29 |
Family
ID=65183475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810968265.9A Pending CN109281840A (en) | 2018-08-23 | 2018-08-23 | Non-suction head velocity fluctuation pump, water pump assemble method and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281840A (en) |
Citations (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2686452A1 (en) * | 1992-01-22 | 1993-07-23 | Merlin Gerin | Plug-in electrical circuit breaker including an electrical connection device |
| US5580221A (en) * | 1994-10-05 | 1996-12-03 | Franklin Electric Co., Inc. | Motor drive circuit for pressure control of a pumping system |
| JPH08326683A (en) * | 1995-05-31 | 1996-12-10 | Ebara Corp | Variable speed water feed device |
| JP2001173586A (en) * | 1999-12-16 | 2001-06-26 | Ebara Corp | Method for operating motor pump and control device used therefor |
| JP2005188461A (en) * | 2003-12-26 | 2005-07-14 | Shin Meiwa Ind Co Ltd | Submerged pump device |
| CN2777068Y (en) * | 2005-04-04 | 2006-05-03 | 威海市白云环保设备厂 | Negative pressure free type tap water supply equipment |
| CN200968437Y (en) * | 2006-06-23 | 2007-10-31 | 沈新荣 | Electronic type dynamic balancing electric regulating valve |
| CN200993109Y (en) * | 2006-12-26 | 2007-12-19 | 上海熊猫机械(集团)有限公司 | Non-negative pressure water pump |
| US20090125252A1 (en) * | 2006-05-12 | 2009-05-14 | Ksb Aktiengesellschaft | Device for Transmitting Measured Values |
| US20090129935A1 (en) * | 2007-11-21 | 2009-05-21 | Kunkler Kevin J | Pump suction pressure limiting speed control and related pump driver and sprinkler system |
| KR20100000941U (en) * | 2008-07-18 | 2010-01-27 | 이한준 | Connector for connecting between high-tension wires |
| JP2010163919A (en) * | 2009-01-14 | 2010-07-29 | Morita Holdings Corp | Pumping device |
| WO2011108493A1 (en) * | 2010-03-04 | 2011-09-09 | 株式会社シンコー | Pump equipped with flow rate measurement function, and ballast water treatment device using same |
| CN201985360U (en) * | 2011-03-16 | 2011-09-21 | 南京普斯迪尔电子科技有限公司 | Device for guiding and positioning switching interface of battery pack |
| CN202132248U (en) * | 2011-07-11 | 2012-02-01 | 郭金辉 | Non-negative pressure energy-saving pump |
| CN202148566U (en) * | 2011-07-01 | 2012-02-22 | 青岛三利中德美水设备有限公司 | Water supply equipment unit without suction pipe |
| CN202789576U (en) * | 2012-10-11 | 2013-03-13 | 山东鼎泰节能技术有限公司 | Non-negative-pressure single-stage double-suction centrifugal pump |
| CN202914899U (en) * | 2012-11-23 | 2013-05-01 | 苏州优德通力电气有限公司 | Immersible pump provided with cable sealing structure |
| CN203009354U (en) * | 2012-11-13 | 2013-06-19 | 长沙山水泵业制造有限公司 | Energy efficiency indicating water pump |
| CN203584833U (en) * | 2013-10-29 | 2014-05-07 | 中国石油化工集团公司 | Pressure-stabilization liquid supply device for large fracturing construction |
| CN203684328U (en) * | 2013-12-31 | 2014-07-02 | 重庆摩尔水处理设备有限公司 | Water supply system |
| CN204475413U (en) * | 2015-01-27 | 2015-07-15 | 襄阳乙钧电气有限公司 | A kind of safety type no-negative-pressure water supply equipment |
| CN204851614U (en) * | 2015-07-28 | 2015-12-09 | 山东圣凯节能投资有限公司 | Energy -efficient water pump economizer |
| CN204858112U (en) * | 2015-08-19 | 2015-12-09 | 深圳丰业达科技有限公司 | Power -supply connector socket |
| CN105133702A (en) * | 2015-09-28 | 2015-12-09 | 青岛三利中德美水设备有限公司 | Non-negative-pressure water supply equipment, water supply system and water supply control method |
| US20160380376A1 (en) * | 2015-06-24 | 2016-12-29 | Itt Manufacturing Enterprises Llc | Plug connector and mating connector |
| CN206409396U (en) * | 2017-01-04 | 2017-08-15 | 中电动力湖北科技股份有限公司 | A kind of integral and intelligent water pump |
| CN206506070U (en) * | 2017-01-26 | 2017-09-19 | 欧度（上海）国际贸易有限公司 | Mixing type connector |
| CN206516846U (en) * | 2017-03-06 | 2017-09-22 | 杭州伯坦科技工程有限公司 | A kind of electric connector of strong shock resistance |
| CN206655827U (en) * | 2017-04-22 | 2017-11-21 | 李金权 | A kind of intelligent water pump protection device |
| CN107482331A (en) * | 2017-08-23 | 2017-12-15 | 上海航天科工电器研究院有限公司 | The high-speed electrical connectors that Surface Mount is installed between a kind of parallel pcb board |
| CN207278576U (en) * | 2017-10-12 | 2018-04-27 | 广州奥姆特机电设备制造有限公司 | A kind of water pump seat of precisely detection fluid state |
| CN108267614A (en) * | 2017-12-29 | 2018-07-10 | 华润电力风能（阳江）有限公司 | A kind of wind detection method and wind measuring system |
| CN209494718U (en) * | 2018-08-23 | 2019-10-15 | 青岛三利泵业有限公司 | Non-suction head velocity fluctuation pump |
-
2018
- 2018-08-23 CN CN201810968265.9A patent/CN109281840A/en active Pending
Patent Citations (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2686452A1 (en) * | 1992-01-22 | 1993-07-23 | Merlin Gerin | Plug-in electrical circuit breaker including an electrical connection device |
| US5580221A (en) * | 1994-10-05 | 1996-12-03 | Franklin Electric Co., Inc. | Motor drive circuit for pressure control of a pumping system |
| JPH08326683A (en) * | 1995-05-31 | 1996-12-10 | Ebara Corp | Variable speed water feed device |
| JP2001173586A (en) * | 1999-12-16 | 2001-06-26 | Ebara Corp | Method for operating motor pump and control device used therefor |
| JP2005188461A (en) * | 2003-12-26 | 2005-07-14 | Shin Meiwa Ind Co Ltd | Submerged pump device |
| CN2777068Y (en) * | 2005-04-04 | 2006-05-03 | 威海市白云环保设备厂 | Negative pressure free type tap water supply equipment |
| US20090125252A1 (en) * | 2006-05-12 | 2009-05-14 | Ksb Aktiengesellschaft | Device for Transmitting Measured Values |
| CN200968437Y (en) * | 2006-06-23 | 2007-10-31 | 沈新荣 | Electronic type dynamic balancing electric regulating valve |
| CN200993109Y (en) * | 2006-12-26 | 2007-12-19 | 上海熊猫机械(集团)有限公司 | Non-negative pressure water pump |
| US20090129935A1 (en) * | 2007-11-21 | 2009-05-21 | Kunkler Kevin J | Pump suction pressure limiting speed control and related pump driver and sprinkler system |
| KR20100000941U (en) * | 2008-07-18 | 2010-01-27 | 이한준 | Connector for connecting between high-tension wires |
| JP2010163919A (en) * | 2009-01-14 | 2010-07-29 | Morita Holdings Corp | Pumping device |
| WO2011108493A1 (en) * | 2010-03-04 | 2011-09-09 | 株式会社シンコー | Pump equipped with flow rate measurement function, and ballast water treatment device using same |
| CN201985360U (en) * | 2011-03-16 | 2011-09-21 | 南京普斯迪尔电子科技有限公司 | Device for guiding and positioning switching interface of battery pack |
| CN202148566U (en) * | 2011-07-01 | 2012-02-22 | 青岛三利中德美水设备有限公司 | Water supply equipment unit without suction pipe |
| CN202132248U (en) * | 2011-07-11 | 2012-02-01 | 郭金辉 | Non-negative pressure energy-saving pump |
| CN202789576U (en) * | 2012-10-11 | 2013-03-13 | 山东鼎泰节能技术有限公司 | Non-negative-pressure single-stage double-suction centrifugal pump |
| CN203009354U (en) * | 2012-11-13 | 2013-06-19 | 长沙山水泵业制造有限公司 | Energy efficiency indicating water pump |
| CN202914899U (en) * | 2012-11-23 | 2013-05-01 | 苏州优德通力电气有限公司 | Immersible pump provided with cable sealing structure |
| CN203584833U (en) * | 2013-10-29 | 2014-05-07 | 中国石油化工集团公司 | Pressure-stabilization liquid supply device for large fracturing construction |
| CN203684328U (en) * | 2013-12-31 | 2014-07-02 | 重庆摩尔水处理设备有限公司 | Water supply system |
| CN204475413U (en) * | 2015-01-27 | 2015-07-15 | 襄阳乙钧电气有限公司 | A kind of safety type no-negative-pressure water supply equipment |
| US20160380376A1 (en) * | 2015-06-24 | 2016-12-29 | Itt Manufacturing Enterprises Llc | Plug connector and mating connector |
| CN204851614U (en) * | 2015-07-28 | 2015-12-09 | 山东圣凯节能投资有限公司 | Energy -efficient water pump economizer |
| CN204858112U (en) * | 2015-08-19 | 2015-12-09 | 深圳丰业达科技有限公司 | Power -supply connector socket |
| CN105133702A (en) * | 2015-09-28 | 2015-12-09 | 青岛三利中德美水设备有限公司 | Non-negative-pressure water supply equipment, water supply system and water supply control method |
| CN206409396U (en) * | 2017-01-04 | 2017-08-15 | 中电动力湖北科技股份有限公司 | A kind of integral and intelligent water pump |
| CN206506070U (en) * | 2017-01-26 | 2017-09-19 | 欧度（上海）国际贸易有限公司 | Mixing type connector |
| CN206516846U (en) * | 2017-03-06 | 2017-09-22 | 杭州伯坦科技工程有限公司 | A kind of electric connector of strong shock resistance |
| CN206655827U (en) * | 2017-04-22 | 2017-11-21 | 李金权 | A kind of intelligent water pump protection device |
| CN107482331A (en) * | 2017-08-23 | 2017-12-15 | 上海航天科工电器研究院有限公司 | The high-speed electrical connectors that Surface Mount is installed between a kind of parallel pcb board |
| CN207278576U (en) * | 2017-10-12 | 2018-04-27 | 广州奥姆特机电设备制造有限公司 | A kind of water pump seat of precisely detection fluid state |
| CN108267614A (en) * | 2017-12-29 | 2018-07-10 | 华润电力风能（阳江）有限公司 | A kind of wind detection method and wind measuring system |
| CN209494718U (en) * | 2018-08-23 | 2019-10-15 | 青岛三利泵业有限公司 | Non-suction head velocity fluctuation pump |
Non-Patent Citations (2)
| Title |
|---|
| 唐宝富 等: "《有源相控阵雷达天线结构设计》", 30 June 2016, 西安电子科技大学出版社, pages: 193 - 194 * |
| 江月山 等: "《数字化社区智能技术产业链导论》", 31 May 2003, 中国建筑工业出版社, pages: 69 - 70 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209494718U (en) | Non-suction head velocity fluctuation pump | |
| CN101222781B (en) | Connector of microphone and its shielding method | |
| CN109103636A (en) | Inserting terminal component, non-suction head water pump, water pump assemble method and control method | |
| CN109281840A (en) | Non-suction head velocity fluctuation pump, water pump assemble method and its control method | |
| CN101216111A (en) | Method for implementing bearing hermetic sealing for machining inner screw thread copper pipe | |
| CN209025852U (en) | Non-suction head water pump | |
| CN102865211A (en) | Terminal connection for sealed compressor | |
| CN109217039A (en) | Without negative pressure water pump inserting terminal, without negative pressure water pump, assemble method and control method | |
| CN209497032U (en) | Inserting terminal component and non-suction head water pump | |
| CN209497075U (en) | Without negative pressure water pump inserting terminal and without negative pressure water pump | |
| CN109185170A (en) | Without negative pressure water pump, water pump assemble method and its control method | |
| CN109185169A (en) | Non-suction head water pump, water pump assemble method and its control method | |
| CN211954551U (en) | Mining pressure sensor detection device with many detection stations | |
| CN213546695U (en) | Quick-change connector for battery | |
| CN202285283U (en) | Three-way turn-on electric connector for on-line detection | |
| CN210566887U (en) | Hydraulic and electric universal connector | |
| CN107834764B (en) | Magnetic bearing wire structure of refrigeration compressor | |
| CN113565737A (en) | Mechanical fault self-checking formula intelligence vacuum pump based on 5G communication | |
| CN107859779B (en) | Self-generating multifunctional pressure reducing valve and control method thereof | |
| CN107861456B (en) | Multifunctional pressure reducing valve capable of stably generating electricity | |
| CN105929273A (en) | Air conditioner and air conditioner indoor unit electric heater starting detection system and method | |
| CN215472661U (en) | Portable vacuum-pumping equipment | |
| CN117117591B (en) | Large hollow electric liquid slip ring for robot | |
| CN221596847U (en) | Side-standing Type-C interface assembly | |
| CN220302842U (en) | Integrated multifunctional pressure reducing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |