CN105545718A - Flow and pressure dual control fluid pressurization device and method - Google Patents
Flow and pressure dual control fluid pressurization device and method Download PDFInfo
- Publication number
- CN105545718A CN105545718A CN201610035429.3A CN201610035429A CN105545718A CN 105545718 A CN105545718 A CN 105545718A CN 201610035429 A CN201610035429 A CN 201610035429A CN 105545718 A CN105545718 A CN 105545718A
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- chamber
- flow
- water
- pump
- intake
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
Abstract
The invention discloses a flow and pressure dual control fluid pressurization device. The flow and pressure dual control fluid pressurization device comprises a water inlet chamber, a water inlet pipe, a pressurization chamber, a first switch piece, a water outlet pipe, a second switch piece and a pressurization pump; one end of the water inlet pipe is communicated with the water inlet chamber, and the other end of the water inlet pipe is connected with an upstream water area; the pressurization chamber is communicated with the water inlet chamber, and metering scales are arranged on a container forming the pressurization chamber; communication between the pressurization chamber and the water inlet chamber is ended through the first switch piece; one end of the water outlet pipe is communicated with the pressurization chamber, and the other end of the water outlet pipe is connected with a downstream water area; communication between the pressurization chamber and the water outlet pipe is ended; and the pressurization pump is used for pumping water in the water inlet chamber into the pressurization chamber, and the water pumping flow speed of the pressurization pump is adjustable. The invention further discloses a flow and pressure dual control fluid pressurization method. The fluid pressurization device is simple in structure and convenient to install, the flowing speed and the pressure of outlet water can be accurately controlled, dual control over the flow and the pressure is achieved, and the accuracy of experimental data is effectively improved.
Description
Technical field
The present invention relates to fluid flow control technique, the fluid pressurization device of particularly a kind of flow and pressure dual control and method.
Background technique
Life, the production sites such as large enterprise, waterworks, mine, power plant, resident living area often need to build pump house to carry current, therefore need the water pump installing respective model, with satisfied production, living needs.Pump house is the building installing water pump, motor, water pump control cabinet and other supplementary equipment, and be the main body of pumping station engineering, its Main Function is for water pump assembly, supplementary equipment and operation management personnel provide good operating conditions.
Water pump in pump house, as the power plant of current, carries out supercharging to improve flow velocity to current, and to complete the conveying to current, in the prior art, pump speed generally has more actual conditions and regulates.Such as Authorization Notice No. be CN102797371B patent document discloses a kind of multiple water-pouring functions pump house with high-order well, comprising: the band structure of hollow cavity, water pump and intake pipe; Be provided with high-order well, lifting zone and exhalant region in described structure, between adjacent area, be provided with partition wall; Intake pipe has two and is with valvular waterexit end respectively: a waterexit end extend throughly be connected to described the lifting zone in, the extension of another waterexit end is through is connected in described high-order well; Water pump is arranged in lifting zone, and the water intake of water pump is arranged on bottom, lifting zone, and the water outlet of water pump is through to be connected in exhalant region; Partition wall between high-order well and exhalant region offers water port.This pump house can tackle the SEA LEVEL VARIATION of peripheral exhaust water body flexibly, take gravity and pressure two kinds of different running method to reduce loss of head, reduce energy consumption, and it is few to possess equipment, less investment, is easy to management operating, takes up an area compact advantage.
A kind of inlet pumping station of the patent documentation of such as Authorization Notice No. CN102383442B and method again, it is characterized in that the main body of described inlet pumping station is the underground structure of round barrel shape cavity structure, described round barrel shape structure forms by the bottom of bucket wall and bucket, bucket wall table side is surrounded by 27 pieces of concrete diaphragm walls, inboard at bucket wall, on concrete diaphragm wall metope, Vertical direction is provided with five layers of inside lining, drum bucket wall top is provided with a circle fore shaft Guan Liang, 4th layer of right side of described round barrel shape cavity structure is provided with some intake pipes, cavity structure in cylinder is divided into three regions from front to back: water inlet wellblock, pump house district, water outlet wellblock, pump house partition wall is established between two regions, this invention adds inlet pumping station can prevent sewage treatment backflow phenomenon as auxiliary power in sewage treatment, be separated into 4 pump houses, the design of 8 outlets enables the flow velocity of sewage before flowing into subsequent step reach consistent fully.
In said structure, the flow velocity of current is all directly regulated by pump, but in actual application, the exact value of the amount of pressurization of pump and the flow of current has no idea accurately to control, and when planning to build pump house, need experiment test indices, now in pipeline, the flow of liquid and supercharging amount are all very important data, need accurately to control.
Summary of the invention
The invention provides the fluid pressurization device of a kind of flow and pressure dual control, structure is simple, the change of accurate flow control and supercharging amount, improves the test accuracy of fluid experiment.
The fluid pressurization device that flow and pressure dual control, comprising:
Intake chamber;
Intake pipe, one end is communicated with described intake chamber, and the water that the other end connects waters, guiding upstream, waters, upstream flows into intake chamber;
Pressurized chamber, is communicated with described intake chamber, and the container forming pressurized chamber is provided with metering scale;
First switch member, blocks between described pressurized chamber and intake chamber and is communicated with;
Outlet pipe, one end is communicated with described pressurized chamber, and the other end connects waters, downstream;
Second switch part, blocks between described pressurized chamber and outlet pipe and is communicated with;
Compression pump, for pumping in pressurized chamber by the water in intake chamber, the pump water flow velocity of compression pump is adjustable.
Between each room and each room and being communicated with between pipeline can passing hole or pipelines, if hole, switch member can adopt gate, if pipeline can adopt valve or gate, switch member type can set as required.
Apparatus of the present invention, by arranging pressurized chamber and compression pump, can go out water speed (namely testing the flow velocity of setting), compression pump are adjusted to required pump water speed needed for outlet pipe; The liquid level height controlling described pressurized chamber, to obtain required hydraulic pressure, realizes flow and pressure dual control.
The mode of speed regulation of compression pump can be carry out coarse adjustment by compression pump power, then is finely tuned by the valve on submersible pump pipeline.
Conveniently manufacture, reduce equipment volume, preferably, described intake chamber and pressurized chamber are formed by baffle for separating by same container.Described intake chamber and pressurized chamber can be splits, also can be one.
In order to strengthen inflow, preferably, described intake pipe is provided with many.Can magnitude setting according to actual needs.
If any many intake pipes, and when requiring that stream each pipeline speed is identical, preferably, every root intake pipe is provided with series flow control valve and piezometric cylinder.Regulating the water intake velocity of intake pipe by controlling series flow control valve, making the liquid level height of all piezometric cylinders identical, thus making the water intake velocity of all intake pipes equal; When repeating test, the liquid level of piezometric cylinder is adjusted to this scale, so can reach fast is the flow velocity needed.
In order to strengthen water-outlet quantity, preferably, described outlet pipe is provided with many.Can magnitude setting according to actual needs.
The reading of scale is affected in order to prevent the water surface caused into water from stirring, preferably, water outlet side Saxboard intake chamber being divided into observation ward and room hydroecium is provided with in described pressurized chamber, described water outlet side Saxboard is provided with multiple water passage hole, described observation ward is provided with metering scale, and water enters in collecting chamber by described compression pump.Described water outlet side Saxboard is arranged, and makes pressurized chamber form two rooms be communicated with, one for reading liquid level height, one, for water inlet, is reduced the impact that water level fluctuation causes reading.
Conveniently install and reduce equipment volume, preferably, described compression pump is submersible pump, and described submersible pump is arranged in intake chamber.
Conveniently observe the height difference between intake chamber and pressurized chamber, whether steady to observe current, preferably, influent side Saxboard intake chamber being divided into pump chamber and observation intake chamber is provided with in described intake chamber, described influent side Saxboard is provided with multiple water passage hole, described pump chamber, for holding submersible pump, observes intake chamber and is provided with metering scale.
Present invention also offers a kind of pressurized with fluid method of flow and pressure dual control, use above-mentioned fluid pressurization device, comprise the following steps:
(1) open the first switch member and second switch part, make intake pipe, intake chamber, pressurized chamber and outlet pipe conducting, make the water in waters, upstream flow into intake chamber, after water flow stationary, close the first switch member and second switch part;
(2) open compression pump and the water in intake chamber is pumped into pressurized chamber, the change of the liquid level metering scale of record pressurized chamber, and timing, use volumetric method to calculate the flow velocity of current, now regulate compression pump pump water speed, make described flow equal preset flow;
(3) (namely reach preset pressure) after the liquid level height of indoor to be pressurised reaches preset height, open described second switch part, make outlet pipe draining.
Apparatus of the present invention and method, by the metering scale on compression pump and pressurized chamber, realize the two ore control of flow and pressure.
By using this method, outlet pipe can be made to reach required accurate flow and hydraulic pressure, can make outlet pipe draining that current quick and stable is run at unlatching second switch part in conjunction with calculating in advance.
Such as when waters, downstream is higher than waters, upstream height, the preset height of the liquid level in pressurized chamber is waters, downstream liquid level height, required outlet pipe flow is preset flow, now reach preset flow by the inventive method at the pump water speed of compression pump, when liquid level height in pressurized chamber reaches preset height (waters, downstream liquid level height), open described second switch part again, when making outlet pipe draining, the water flow stationary of whole device runs, and the liquid level height in pressurized chamber is constant.
Apparatus of the present invention and method are equally applicable to work out water pipe scouring experiment situation, as long as the flow namely needed for known outlet pipe and head height, as long as by this device carry out controlling flow and pressure can obtain testing needed for flowrate and delivery head height, open described second switch part again, when making outlet pipe draining, the water flow stationary of whole device runs, and the liquid level height in pressurized chamber is constant.
Beneficial effect of the present invention:
Fluid pressurization device structure of the present invention is simple, installs additional conveniently, accurately can control flow and the pressure of water outlet, realize the two ore control of flow and pressure, effectively improves the accuracy of laboratory data.
Accompanying drawing explanation
Fig. 1 is the side-looking structural representation of fluid pressurization device of the present invention.
Fig. 2 is the structural representation of Saxboard of the present invention.
Fig. 3 is the plan structure schematic diagram of fluid pressurization device of the present invention.
Fig. 4 is the diaphragm structure schematic diagram of fluid pressurization device of the present invention.
Embodiment
As shown in figures 1-4, the fluid pressurization device of the present embodiment comprises: container 1, dividing plate 2, water pump pipeline 3, submersible pump 4, dividing plate hand door 5, intake pipe 6, outlet pipe 7, dividing plate box out 8, base 9, inlet valve 10, piezometric cylinder 11, water outlet hand door 12, influent side Saxboard 13, water outlet side Saxboard 14 and water pump pipeline valve 15.
Intake pipe 6 is communicated with waters, upstream, and outlet pipe 7 is communicated with waters, downstream.
Container 1 is separated into two spaces by dividing plate 2, is respectively intake chamber 011 and pressurized chamber 012, by the dividing plate be arranged on dividing plate 2 box out 8 and dividing plate hand door 5 regulate the level balance of intake chamber 011 and pressurized chamber 012.
The water body of container 1 is divided into two parts by dividing plate 2, by submersible pump 4 and water pump pipeline 3, the water in intake chamber 011 is pumped into pressurized chamber 012.
Intake chamber 011 is divided into observation intake chamber 0111 by influent side Saxboard 13 and pressurized chamber 012 is divided into observation ward 0121 and collecting chamber 0122 by pump chamber 0112, water outlet side Saxboard 14, the vibration that the arranging of influent side Saxboard 13 and water outlet side Saxboard 14 can reduce submersible pump 4 and the wave that draining causes, be convenient to observe scale, scale is arranged on to be observed in intake chamber 0111 and observation ward 0121.
Container 1 and piezometric cylinder 11 are transparent material, and sidewall is all with scale.
Intake pipe 6 and outlet pipe 7 are all provided with three, by regulating water inlet valve door 10, whether observe three piezometric cylinder 11 water surface curves at same height, control intake pipe 6 whether constant pressure; By dividing plate hand door 5, regulate the liquid level discrepancy in elevation of dividing plate 2 both sides constant, reach state of equilibrium.
Intake pipe 6 is respectively equipped with valve, and dividing plate is boxed out and is provided with hand door.
Close manually-operated gate 5, regulated the total discharge of three outlet pipes 7 by submersible pump 4.
The bottom of container 1 is provided with base 9, makes whole device keep level.
Use the fluid pressurization device of the present embodiment to carry out the method for pressurized with fluid as follows, the liquid level that the method for the present embodiment is directed to waters, downstream is implemented higher than the situation of the liquid level in waters, upstream:
(1) the upstream and downstream waters liquid level discrepancy in elevation (i.e. pressure, lift of pump) that requires of known test, obtaining liquid level height needed for pressurized chamber will flow needed for and outlet pipe identical with waters, downstream liquid level;
(2) dividing plate hand door 5 and water outlet hand door 12 is opened, make intake pipe 6, intake chamber 011, pressurized chamber 012 and outlet pipe 7 conducting, the water in waters, upstream is made to flow into intake chamber 011, the water in waters, downstream flows into pressurized chamber 012, after water flow stationary, close dividing plate hand door 5 and water outlet hand door 12;
(3) open water pump pipeline valve 15, start submersible pump 4, poor by liquid level scale in timing and left part pool wall, use volumetric method to try to achieve flow, regulate water pump pipeline valve 15, make flow reach test requirements document, namely reach the object of flow control;
(4) when the liquid level in pressurized chamber 012 rises to downstream fluid level, open water outlet hand door 12, namely reach the pressure difference of test requirements document, reach pressure controlled object, pressurized chamber 012 liquid level height is constant, and water flow stationary flows.
Claims (9)
1. a fluid pressurization device for flow and pressure dual control, is characterized in that, comprising:
Intake chamber;
Intake pipe, one end is communicated with described intake chamber, and the water that the other end connects waters, guiding upstream, waters, upstream flows into intake chamber;
Pressurized chamber, is communicated with described intake chamber, and the container forming pressurized chamber is provided with metering scale;
First switch member, blocks between described pressurized chamber and intake chamber and is communicated with;
Outlet pipe, one end is communicated with described pressurized chamber, and the other end connects waters, downstream;
Second switch part, blocks between described pressurized chamber and outlet pipe and is communicated with;
Compression pump, for pumping in pressurized chamber by the water in intake chamber, the pump water flow velocity of compression pump is adjustable.
2. the fluid pressurization device of flow as claimed in claim 1 and pressure dual control, it is characterized in that, described intake chamber and pressurized chamber are formed by baffle for separating by same container.
3. the fluid pressurization device of flow as claimed in claim 1 and pressure dual control, it is characterized in that, described intake pipe is provided with many.
4. the fluid pressurization device of flow as claimed in claim 3 and pressure dual control, it is characterized in that, every root intake pipe is provided with series flow control valve and piezometric cylinder.
5. the fluid pressurization device of flow as claimed in claim 1 and pressure dual control, it is characterized in that, described outlet pipe is provided with many.
6. the fluid pressurization device of flow as claimed in claim 1 and pressure dual control, it is characterized in that, water outlet side Saxboard intake chamber being divided into observation ward and collecting chamber is provided with in described pressurized chamber, described water outlet side Saxboard is provided with multiple water passage hole, and described observation ward is provided with metering scale.
7. the fluid pressurization device of flow as claimed in claim 1 and pressure dual control, it is characterized in that, described compression pump is submersible pump, and described submersible pump is arranged in intake chamber.
8. the fluid pressurization device of flow as claimed in claim 7 and pressure dual control, it is characterized in that, influent side Saxboard intake chamber being divided into pump chamber and observation intake chamber is provided with in described intake chamber, described influent side Saxboard is provided with multiple water passage hole, described pump chamber, for holding submersible pump, observes intake chamber and is provided with metering scale.
9. a pressurized with fluid method for flow and pressure dual control, is characterized in that, use the fluid pressurization device as described in claim as arbitrary in claim 1 ~ 8, comprise the following steps:
(1) open the first switch member and second switch part, make intake pipe, intake chamber, pressurized chamber and outlet pipe conducting, make the water in waters, upstream flow into intake chamber, after water flow stationary, close the first switch member and second switch part;
(2) open compression pump and the water in intake chamber is pumped into pressurized chamber, the change of the liquid level metering scale of record pressurized chamber, and timing, use volumetric method to calculate the flow velocity of current, now regulate compression pump pump water speed, make described flow equal preset flow;
(3), after the liquid level height of indoor to be pressurised reaches preset height, open described second switch part, make outlet pipe draining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035429.3A CN105545718B (en) | 2016-01-19 | 2016-01-19 | Flow and pressure dual control fluid pressurization device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035429.3A CN105545718B (en) | 2016-01-19 | 2016-01-19 | Flow and pressure dual control fluid pressurization device and method |
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| Publication Number | Publication Date |
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| CN105545718A true CN105545718A (en) | 2016-05-04 |
| CN105545718B CN105545718B (en) | 2017-05-10 |
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| CN201610035429.3A Active CN105545718B (en) | 2016-01-19 | 2016-01-19 | Flow and pressure dual control fluid pressurization device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115017744A (en) * | 2022-08-08 | 2022-09-06 | 河北建投水务投资有限公司 | Modeling method and system of groundwater source water supply hydraulic calculation model |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983843B (en) * | 2018-07-06 | 2019-12-31 | 浙江大学 | Bidirectional flow making device with synchronous control of pressure and flow making method thereof |
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2016
- 2016-01-19 CN CN201610035429.3A patent/CN105545718B/en active Active
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| JPS5477302A (en) * | 1977-12-02 | 1979-06-20 | Toshiba Corp | Controller of motor driven water pump |
| US6234759B1 (en) * | 1998-07-16 | 2001-05-22 | Ewald Hennel | Method for regulating a fluid pressure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115017744A (en) * | 2022-08-08 | 2022-09-06 | 河北建投水务投资有限公司 | Modeling method and system of groundwater source water supply hydraulic calculation model |
| CN115017744B (en) * | 2022-08-08 | 2022-11-18 | 河北建投水务投资有限公司 | Modeling method and system of groundwater source water supply hydraulic calculation model |
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| CN105545718B (en) | 2017-05-10 |
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