CN205975785U - Variable -frequency water supply device - Google Patents
Variable -frequency water supply device Download PDFInfo
- Publication number
- CN205975785U CN205975785U CN201620900511.3U CN201620900511U CN205975785U CN 205975785 U CN205975785 U CN 205975785U CN 201620900511 U CN201620900511 U CN 201620900511U CN 205975785 U CN205975785 U CN 205975785U
- Authority
- CN
- China
- Prior art keywords
- water supply
- variable frequency
- supply pump
- pump group
- frequency water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model provides a variable -frequency water supply device, includes frame, variable frequency water supply pump group, check valve, clamp formula butterfly valve, variable frequency water supply pump group installs in the frame, variable frequency water supply pump group has two, the top of variable frequency water supply pump group is connected with the water inlet, water inlet and two variable frequency water supply pump groups all pass through the pipe connection, be equipped with a clamp formula butterfly valve between water inlet and the variable frequency water supply pump group, the check valve is installed to the below of variable frequency water supply pump group, the check valve below is equipped with other clamp formula butterfly valve, still be connected with the overhead tank in the variable frequency water supply pump group respectively, pressure sensor and electric contact pressure gauge, pressure sensor and controller control connection, control connection are still organized with two variable frequency water supply pump to the controller. The utility model discloses an install in the frame the effectual occupation of land space of having saved with two frequency conversion water pumps groups is compact to can satisfy the demand of high efficiency, energy -conservation during the operation. Additionally, the utility model has the advantages of simple structure, the connecting piece that adopts is less to it is convenient to install.
Description
Technical field
This utility model is related to a kind of water supply installation, particularly a kind of frequency conversion water supply facility.
Background technology
With the raising of social development and living standards of the people, people increasingly pay attention to the quality of domestic water.Modern
People in society generally live on higher floor, and current China high-storey is set by no negative pressure water distribution system flushing mostly
Standby supplied water.But this equipment has the shortcomings that relatively costly, volume is larger, installation is inconvenient, is particularly unsuitable for
Rural area and low floor area.
In order to solve this problem, have and much the document that prior art improves is disclosed in succession, such as document CN
204510337 U disclose a kind of frequency-changing water supply device, are connected by MODEL VERTICAL MULTISTAGE PUMP and various valve, converter etc. and close
System, has reached compact conformation, the effect of stable performance, however, the volume that MODEL VERTICAL MULTISTAGE PUMP takies is still larger, this variable frequency water supply
The connection level of equipment is also more, easily causes confusion when mounted, causes that structure is numerous and diverse, installation difficulty problem.
Utility model content
The purpose of this utility model is, in order to overcome the above-mentioned deficiency of prior art, to provide a kind of frequency conversion water supply facility, tool
There is simple and compact for structure, install convenient.
To achieve these goals, this utility model be employed technical scheme comprise that：A kind of frequency conversion water supply facility, including machine
Frame, variable frequency water supply pump group, check valve, clamping hoop type butterfly valve, described variable frequency water supply pump group is arranged in frame, and variable frequency water supply pump group has
Two, the top of variable frequency water supply pump group is connected with water inlet, and water inlet is all connected by pipeline with two variable frequency water supply pump groups, enters
It is equipped with a clamping hoop type butterfly valve, the lower section of variable frequency water supply pump group is provided with unidirectional between the mouth of a river and two variable frequency water supply pump groups
Valve, is provided with other clamping hoop type butterfly valve, has been also respectively connected with pressurized tank, pressure between two variable frequency water supply pump groups below check valve
Force transducer and electro connecting pressure gauge, pressure transducer is connected in the pipeline between two variable frequency water supply pump groups, pressurized tank and
Electro connecting pressure gauge is located at the two ends of pressure transducer respectively, and the control of pressure transducer and controller is connected, and controller is also with two
Individual variable frequency water supply pump group controls connection.
Further, the lower section of described variable frequency water supply pump group is additionally provided with outlet, and outlet connects two changes by pipeline
Frequency water supply pump group.
Further, the inner side of described outlet is additionally provided with the stainless steel sluice valve for controlling water flow.
Further, described two variable frequency water supply pump groups are mounted side by side in frame.
Further, described controller is PLC.
Use principle of the present utility model is：
When user's water consumption is less than the water yield of a variable frequency pump group, system changes according to water consumption, makes a change
Frequency water pump group is run, pressure drop in the tubing when water consumption increases, and at this moment pressure transducer passes the signal detecting
Give controller, controller judges to signal, issue instructions to variable frequency pump group afterwards, and then control variable frequency pump group electricity
Machine, makes motor speed accelerate it is ensured that system pressure is constant.
Conversely, when water consumption reduces, making the motor speed of variable frequency pump group slow down, to keep constant voltage.
When water consumption is more than the water yield of a variable frequency pump group, First variable frequency pump group is switched to power frequency operation,
Second variable frequency pump group starts frequency control and runs, when water consumption is less than the water yield of two variable frequency pump groups, can be certainly
Dynamic one or two variable frequency pump groups of stopping are run.Therefore, during whole service, remain hydraulic pressure in system not
Become, make variable frequency pump group always work in high efficient district.
This utility model compared with prior art has following features：This utility model passes through will be tight for two variable frequency pump groups
That gathers is arranged in frame, effectively saves occupation of land space, and disclosure satisfy that the efficient, demand of energy-conservation when running.In addition,
Structure of the present utility model is simple, and the connector of employing is less, thus install convenient.
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is connection schematic diagram of the present utility model.
Specific embodiment
As depicted in figs. 1 and 2, a kind of frequency conversion water supply facility, including frame, variable frequency water supply pump group, check valve, clamping hoop type butterfly
Valve, described variable frequency water supply pump group is arranged in frame, and variable frequency water supply pump group has two, the top of variable frequency water supply pump group be connected with into
The mouth of a river, water inlet is all connected by pipeline with two variable frequency water supply pump groups, is all provided between water inlet and two variable frequency water supply pump groups
There is a clamping hoop type butterfly valve, the lower section of variable frequency water supply pump group is provided with check valve, is provided with other clamping hoop type butterfly below check valve
Valve, has been also respectively connected with pressurized tank, pressure transducer and electro connecting pressure gauge, pressure sensing between two variable frequency water supply pump groups
Device is connected in the pipeline between two variable frequency water supply pump groups, and pressurized tank and electro connecting pressure gauge are located at pressure transducer respectively
Two ends, pressure transducer is connected with controller control, and controller is also connected with two variable frequency water supply pump groups controls.
Specifically, the lower section of described variable frequency water supply pump group is additionally provided with outlet, and outlet connects two frequency conversions by pipeline
Water supply pump group.
Specifically, the inner side of described outlet is additionally provided with the stainless steel sluice valve for controlling water flow.
Specifically, described two variable frequency water supply pump groups are mounted side by side in frame.
Specifically, described controller is PLC.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this practicality to this utility model
New spirit and scope.So, if of the present utility model these modification and modification belong to this utility model claim and
Within the scope of its equivalent technology, then this utility model is also intended to comprise these changes and modification.
Claims (5)
1. a kind of frequency conversion water supply facility it is characterised in that：Including frame, variable frequency water supply pump group, check valve, clamping hoop type butterfly valve, institute
State variable frequency water supply pump group to be arranged in frame, variable frequency water supply pump group has two, and the top of variable frequency water supply pump group is connected with water inlet,
Water inlet is all connected by pipeline with two variable frequency water supply pump groups, is equipped with one between water inlet and two variable frequency water supply pump groups
Clamping hoop type butterfly valve, the lower section of variable frequency water supply pump group is provided with check valve, is provided with other clamping hoop type butterfly valve, two below check valve
Pressurized tank, pressure transducer and electro connecting pressure gauge it have been also respectively connected with, pressure transducer connects between individual variable frequency water supply pump group
In the pipeline between two variable frequency water supply pump groups, pressurized tank and electro connecting pressure gauge are located at the two ends of pressure transducer respectively,
Pressure transducer is connected with controller control, and controller is also connected with two variable frequency water supply pump groups controls.
2. frequency conversion water supply facility as claimed in claim 1 it is characterised in that：The lower section of described variable frequency water supply pump group is additionally provided with out
The mouth of a river, outlet connects two variable frequency water supply pump groups by pipeline.
3. frequency conversion water supply facility as claimed in claim 2 it is characterised in that：The inner side of described outlet is additionally provided with for controlling
The stainless steel sluice valve of water flow.
4. frequency conversion water supply facility as claimed in claim 1 or 2 it is characterised in that：Described two variable frequency water supply pump groups are pacified side by side
It is contained in frame.
5. frequency conversion water supply facility as claimed in claim 1 or 2 it is characterised in that：Described controller is PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900511.3U CN205975785U (en) | 2016-08-19 | 2016-08-19 | Variable -frequency water supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900511.3U CN205975785U (en) | 2016-08-19 | 2016-08-19 | Variable -frequency water supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205975785U true CN205975785U (en) | 2017-02-22 |
Family
ID=58031434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620900511.3U Expired - Fee Related CN205975785U (en) | 2016-08-19 | 2016-08-19 | Variable -frequency water supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205975785U (en) |
-
2016
- 2016-08-19 CN CN201620900511.3U patent/CN205975785U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20210819 |