CN100445480C - Water-inlet pressure pretreatment of direct running-water pipeline pressurizer - Google Patents
Water-inlet pressure pretreatment of direct running-water pipeline pressurizer Download PDFInfo
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- CN100445480C CN100445480C CNB2005100946777A CN200510094677A CN100445480C CN 100445480 C CN100445480 C CN 100445480C CN B2005100946777 A CNB2005100946777 A CN B2005100946777A CN 200510094677 A CN200510094677 A CN 200510094677A CN 100445480 C CN100445480 C CN 100445480C
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Abstract
This invention was a public of water supply pipelines supercharger inlet pressure equipment pre-control methods, which rely on computer technology, Intake of equipment for monitoring pressure, and this pressure drop allows the range (under sub-limits, limits) set in advance, such a pressure fluctuation, fall into the pre-limits under control, limit, equipment for urban public water supply pipe network approach will be adjusted to contain the upstream pipeline pressure continues to drop, Pressurized water supply equipment as usual. So this method can directly pressurized water upstream pipeline network to ensure safety pressure upstream can take full advantage of network pressure and no secondary pollution.
Description
Technical field
The present invention relates to the control method of the direct supercharging equipment water inlet of a kind of water supply pipe pressure.
Background technology
Water services because of the pressure of city public water supply pipeline can not satisfy local water user's demand, will be carried out secondary booster.Secondary booster must not draw water by direct armored pump on the public water supply pipeline of city according to " urban water supply regulations " regulation.This is in order to prevent that the draw water pressure that may make water pump rear end water supply line of direct armored pump from falling excessively, influences the user's water in this section water supply line coverage.Therefore, general supercharging mode is exactly public water supply pipeline → pond → water pump → attic tank or directly send the sheet family.This supercharging mode is reliable and stable, but it is big to take up room, and former pipeline pressure can not utilize, and secondary pollution takes place the cost height easily; The no negative pressure supercharging equipment that put goods on the market in recent years can directly be connected with the public water supply pipeline, but the flow of equipment upstream line, when pressure is jagged, guarantee the pressure security of upstream line, and the supercharging of equipment will can not get guaranteeing.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of water-inlet pressure pretreatment of direct running-water pipeline pressurizer, can guarantee that with the supercharging of directly fetching water of this method upstream pipe network pressure security can make full use of upstream ductwork pressure and non-secondary pollution again.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of water-inlet pressure pretreatment of direct running-water pipeline pressurizer, during the equipment water intaking:
(1) when lower limit that equipment water inlet pressure allows to fall greater than city public water supply pipe network intake, water pump leads to the closedown of pipeline of water storing tank, and water pump is from the supercharging of directly fetching water of city public water supply pipe network pipeline;
(2) allow the lower limit fallen smaller or equal to city public water supply pipe network intake and during the limiting value that allows to fall greater than city public water supply pipe network intake when equipment water inlet pressure, water pump leads to the closedown of pipeline of water storing tank, water pump is controlled from directly the fetch water water withdrawal of supercharging of city public water supply pipe network pipeline, make equipment water inlet pressure stop to descend and greater than limiting value, institute's water deficit is replenished to water pump from water storing tank water intaking by auxiliary pump, the water pump pressurized water supply that does as usual;
(3) when limiting value that equipment water inlet pressure allows to fall smaller or equal to city public water supply pipe network intake, the pathway closure that water pump is directly fetched water from city public water supply pipe network pipeline, city public water supply pipe network pipeline is opened towards the passage of water storing tank, to the water storing tank water filling, water pump leads to the pipeline unlatching of water storing tank, water pump supplies water to the user from water storing tank water intaking supercharging, in the practical operation, proportional to pipe diameter and equipment upstream (incoming end) pipe diameter that water storing tank is opened, prevent that pipeline is excessive and cause public water supply ductwork pressure loss in city excessive to the water storing tank injection flow.
The beneficial effects of the utility model are: equipment is realized METHOD FOR CONTINUOUS DETERMINATION to water inlet pressure, and according to the pressure variation of upstream pipe network, equipment enters the relevant work state automatically.Like this, the pressure of both having guaranteed city public water supply pipeline can because of equipment directly water intaking damaging influence appears, simultaneously, how to change (except the cutting off the water) pressurized water supply forward that can both do as usual no matter guarantee upstream line pressure again, and upstream line pressure can maximize the use.Therefore the present invention can make full use of former pipeline pressure, can remain in the scope that local water supply department allows to fall equipment water inlet pressure, non-secondary pollution, no matter how upstream line pressure changes (except that cutting off the water), equipment can both move as usual, is that the user supplies water according to the lift of prior setting.
The specific embodiment
Embodiment: a kind of water-inlet pressure pretreatment of direct running-water pipeline pressurizer, during the equipment water intaking:
(1) when lower limit that equipment water inlet pressure allows to fall greater than city public water supply pipe network intake, water pump leads to the closedown of pipeline of water storing tank, and water pump is from the supercharging of directly fetching water of city public water supply pipe network pipeline;
(2) allow the lower limit fallen smaller or equal to city public water supply pipe network intake and during the limiting value that allows to fall greater than city public water supply pipe network intake when equipment water inlet pressure, water pump leads to the closedown of pipeline of water storing tank, water pump is controlled from directly the fetch water water withdrawal of supercharging of city public water supply pipe network pipeline, make equipment water inlet pressure stop to descend and greater than limiting value, institute's water deficit is replenished to water pump from water storing tank water intaking by auxiliary pump, the water pump pressurized water supply that does as usual;
(3) when limiting value that equipment water inlet pressure allows to fall smaller or equal to city public water supply pipe network intake, the pathway closure that water pump is directly fetched water from city public water supply pipe network pipeline, city public water supply pipe network pipeline is opened towards the passage of water storing tank, to the water storing tank water filling, water pump leads to the pipeline unlatching of water storing tank, water pump supplies water to the user from water storing tank water intaking supercharging, in the practical operation, proportional to pipe diameter and equipment upstream (incoming end) pipe diameter that water storing tank is opened, prevent that pipeline is excessive and cause public water supply ductwork pressure loss in city excessive to the water storing tank injection flow.
The principle of the pre-method of control of water inlet pressure therefrom of the present invention as can be known is: by microcomputer technology, to the continuous monitoring of equipment water inlet pressure, and the amplitude (branch lower limit, limiting value) that this pressure allows to fall set in advance, so fluctuation appears in pressure, when falling into lower limit, the limiting value of control in advance, equipment can be adjusted the mode of city public water supply pipe network water intaking thereupon, suppresses upstream line pressure and continues to descend, simultaneously, the equipment pressurized water supply that does as usual.
Among the present invention, the water storing tank capacity needs to determine according to the water supply capacity of city public water supply pipe network and supercharging equipment tie point and number of users.
Annotate:
The limiting value that lower limit, the city public water supply pipe network intake pressure that city public water supply pipe network intake pressure allows to fall allows to fall can be determined by local water supply department.
Claims (1)
1. water-inlet pressure pretreatment of direct running-water pipeline pressurizer is characterized in that: during the equipment water intaking:
(1) when lower limit that equipment water inlet pressure allows to fall greater than city public water supply pipe network intake, water pump leads to the closedown of pipeline of water storing tank, and water pump is from the supercharging of directly fetching water of city public water supply pipe network pipeline;
(2) allow the lower limit fallen smaller or equal to city public water supply pipe network intake and during the limiting value that allows to fall greater than city public water supply pipe network intake when equipment water inlet pressure, water pump leads to the closedown of pipeline of water storing tank, water pump is controlled from directly the fetch water water withdrawal of supercharging of city public water supply pipe network pipeline, make equipment water inlet pressure stop to descend and greater than limiting value, institute's water deficit is replenished to water pump from water storing tank water intaking by auxiliary pump, the water pump pressurized water supply that does as usual;
(3) when limiting value that equipment water inlet pressure allows to fall smaller or equal to city public water supply pipe network intake, the pathway closure that water pump is directly fetched water from city public water supply pipe network pipeline, city public water supply pipe network pipeline is opened towards the passage of water storing tank, to the water storing tank water filling, water pump leads to the pipeline unlatching of water storing tank, and water pump supplies water to the user from water storing tank water intaking supercharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100946777A CN100445480C (en) | 2005-09-30 | 2005-09-30 | Water-inlet pressure pretreatment of direct running-water pipeline pressurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100946777A CN100445480C (en) | 2005-09-30 | 2005-09-30 | Water-inlet pressure pretreatment of direct running-water pipeline pressurizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1940189A CN1940189A (en) | 2007-04-04 |
| CN100445480C true CN100445480C (en) | 2008-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100946777A Active CN100445480C (en) | 2005-09-30 | 2005-09-30 | Water-inlet pressure pretreatment of direct running-water pipeline pressurizer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106438310B (en) * | 2016-08-31 | 2018-02-09 | 杰瑞石油天然气工程有限公司 | A kind of method that plunger pump depletion is prevented based on monitoring output pressure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092562U (en) * | 1991-05-16 | 1992-01-08 | 戚长胜 | Auxiliary pressurizing device of fluidic pump |
| CN2123554U (en) * | 1992-04-15 | 1992-12-02 | 赵强 | Pressure adjusting resistance automatic speed-changing water supply device |
| JPH1068388A (en) * | 1997-06-06 | 1998-03-10 | Hitachi Ltd | Liquid feeding device for service water line and pump control method |
| JPH10246186A (en) * | 1998-03-06 | 1998-09-14 | Hitachi Ltd | Aqueduct water feed device and its pump control method |
| CN2318272Y (en) * | 1998-01-23 | 1999-05-12 | 曹长城 | Automatic water supply device for building |
| CN2351476Y (en) * | 1998-12-11 | 1999-12-01 | 李一凡 | Municipal water supply pipe network terminal water supplying apparatus |
| CN2547773Y (en) * | 2002-01-24 | 2003-04-30 | 陈立信 | Automatic constant-pressure variable energy-saving water supply apparatus |
| CN2587946Y (en) * | 2002-12-30 | 2003-11-26 | 池学聪 | No-negative pressure boosting apparatus |
-
2005
- 2005-09-30 CN CNB2005100946777A patent/CN100445480C/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2092562U (en) * | 1991-05-16 | 1992-01-08 | 戚长胜 | Auxiliary pressurizing device of fluidic pump |
| CN2123554U (en) * | 1992-04-15 | 1992-12-02 | 赵强 | Pressure adjusting resistance automatic speed-changing water supply device |
| JPH1068388A (en) * | 1997-06-06 | 1998-03-10 | Hitachi Ltd | Liquid feeding device for service water line and pump control method |
| CN2318272Y (en) * | 1998-01-23 | 1999-05-12 | 曹长城 | Automatic water supply device for building |
| JPH10246186A (en) * | 1998-03-06 | 1998-09-14 | Hitachi Ltd | Aqueduct water feed device and its pump control method |
| CN2351476Y (en) * | 1998-12-11 | 1999-12-01 | 李一凡 | Municipal water supply pipe network terminal water supplying apparatus |
| CN2547773Y (en) * | 2002-01-24 | 2003-04-30 | 陈立信 | Automatic constant-pressure variable energy-saving water supply apparatus |
| CN2587946Y (en) * | 2002-12-30 | 2003-11-26 | 池学聪 | No-negative pressure boosting apparatus |
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| Publication number | Publication date |
|---|---|
| CN1940189A (en) | 2007-04-04 |
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