CN102433912A - Pressurized water supply device - Google Patents
Pressurized water supply device Download PDFInfo
- Publication number
- CN102433912A CN102433912A CN201110263319XA CN201110263319A CN102433912A CN 102433912 A CN102433912 A CN 102433912A CN 201110263319X A CN201110263319X A CN 201110263319XA CN 201110263319 A CN201110263319 A CN 201110263319A CN 102433912 A CN102433912 A CN 102433912A
- Authority
- CN
- China
- Prior art keywords
- pressure
- water
- generation apparatus
- gas reservoir
- pump
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
- E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
-
- 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
- F04D13/16—Pumping installations or systems with storage reservoirs
-
- 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
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The device has water pump (1) for feeding water from suction port (E) into pressurized water system. A water tank (5.4) is arranged on one side of flexible membrane of surge tank (5), while air accumulator (5.2) is arranged on other side of membrane. A pressure side connection (A) is provided to switch pump in normal operation mode, if pressure of pump is reduced below given starting pressure, and to switch off the pump, if pressure exceeds predetermined cut-off pressure. An air pressure sensor (7) is connected to control unit to control pump, such that pressure in reservoir is increased.
Description
Technical field
The present invention relates to a kind of compressed water generation apparatus (Druckwasserwerk) that is used at water pressuring system supply fresh water; It has: water pump; It realizes pressure control through at least one pressure sensor to it, and this water pump absorbs water from the port of suction side, and sends in the water pressuring system; Compensation vessel is provided with flexible barrier film in this container, wherein, in a side of barrier film water receiver is set, and at the opposite side of barrier film gas reservoir is set, and at this, water receiver is connected with pressure system; Port on the pressure side, it is connected with water pressuring system; And controller, in service normally, when being lower than preset cut-in pressure, controller is connected water pump, and when surpassing higher preset opening pressure, controller cuts off water pump.
Background technology
The compressed water generation apparatus of the above-mentioned type is well-known.Thisly be intended to reduce the switching frequency of water pump by controllable water pump and the combination that is arranged in the compensation vessel of system, and can satisfy where necessary short-term, exceed the water supply requirement that water pump extracts ability.Its basic principle is; Gas is compressed than water in fact more easily; Thereby the pressure system of compressible gas volume and water is linked together, thus, can be under the situation that pump does not have to connect; Expansion based on gas volume comes transporting water, and the pressure in gas reservoir is owing to the expansion of gas volume descends too much.At this, for separately, between water and gas volume, install flexible usually or be flexible barrier film at least.
The problem of this compressed water generation apparatus is that the barrier film this flexibility in the compensation vessel, that mainly be made up of rubber is prone to weather.This can cause damage, thereby causes the pressure in the gas reservoir to run off fast more or less, makes the pressure balance container lose its buffer capacity usually progressively thus, and water pump must be worked with shorter and shorter connection/cut-out at interval.If because the valve of not absolute hermetically closing or the slow air diffusion through barrier film cause the loss of pressure in the gas reservoir, so, still one-sided acting hydraulic pressure can cause barrier film persistent infringement owing to excessive expansion receives.
Summary of the invention
Therefore, the objective of the invention is to propose a kind of compressed water generation apparatus, it can point out the pack completeness of the mistake of gas reservoir in the compensation vessel automatically, and also it is revised where necessary.
The inventor recognizes; In having the compressed water generation apparatus of compensation vessel; Can only confirm through the pressure measxurement in gas reservoir and to the predefined control of water pump; Whether gas reservoir is by abundant filling, and whether the barrier film between definite thus gas reservoir and the water receiver is normal.So need in water, not carry out pressure measxurement.Can make sensor be arranged in dry medium thus, and cost of production is correspondingly reduced, and make operation safer.At this,, also measure the pressure of water pressuring system indirectly through measurement gas pressure through pressure vessel is connected with water pressuring system through flexible partition.
Therefore the inventor proposes a kind of corresponding compressed water generation apparatus, and in order to supply fresh water to water pressuring system, this device has:
-water pump carries out pressure control through at least one pressure sensor to it, and this water pump is drawn water from the port of suction side, and sends in the water pressuring system,
-compensation vessel is provided with flexible barrier film in this container, in a side of barrier film water receiver is set, and at the opposite side of barrier film gas reservoir is set, and wherein, water receiver is connected with water pressuring system,
-port on the pressure side, its be connected with water pressuring system and
-controller, in service normally, when being lower than preset cut-in pressure, this controller is connected water pump, and when surpassing higher preset opening pressure, controller cuts off water pump,
Its improvements are, are gas pressure sensor with at least one pressure sensor design, for control of pump, this gas pressure sensor are connected with gas reservoir, with the pressure in the measurement gas memory.
At this, the controller of preferred water pump has the processor that comprises program storage, and wherein, this processor unit is carried out at least one and left the logical program in the program storage in when compressed water generation apparatus moves.
In addition, can also do with at least one logic programming of leaving in the program storage, make it when processor moves, carry out inspection the compactedness of gas reservoir at this.
In addition; Can at least one be used to check that the logic programming of gas reservoir compactedness does; It is in operation and carries out the measuring period of repetition; Wherein, the air pressure when the water receiver emptying in the measurement gas memory, and infer functional (Funktionsfaehigkeit) of said compensation vessel from measured air pressure.Inspection to the gas reservoir compactedness preferably can be carried out like this: at least one is used to check that the logic programming of gas reservoir compactedness is to make it can carry out following functional steps:
-ignore the situation when being lower than cut-in pressure,
-wait for the predefined very first time at interval, and check whether the air pressure in the gas reservoir is lower than the first preset minimum pressure in this interim very first time,
-when being lower than the first preset minimum pressure, began for second time interval, check during this period whether air pressure is reduced on second minimum pressure,
If-during second time interval, reach second minimum pressure, then trigger and report to the police.
At this, can be to make its display alarm message on pump, and/or make this warning message trigger audible ringing signal with at least one logic programming.
Can also additionally be arranged to the gas pressure supply of gas reservoir, and the gas that starts in gas reservoir through reporting to the police is carried.This for example can realize by means of controlled air pump that links to each other with gas reservoir or independent barochamber.
Additionally, logical program can also have counter, in order to the pump periodicity of record water pump, and after reaching preset number, starts the inspection to the gas reservoir compactedness automatically.Equally can also be additionally or this inspection of manual triggers uniquely.
In addition, logical program can also have another counter, its be recorded in the unit number in pump cycle of water pump and/or the gas reservoir in the unit interval recharge periodicity, and after surpassing preset number, send warning.Can find barrier film or the leakage of valve in the gas reservoir thus.
In addition, preferably compressed water generation apparatus additionally has flow transmitter, and this sensor is preferably measured the water that from waterworks, extracts.Thus, can in program storage, deposit a kind of logical program, it is designed to, and under the situation that water pump is connected, minimum and gas pressure does not change and switches off the pump owing to flow.
At last, according to compressed water generation apparatus of the present invention can be provided with that two or more are adjustable, the opening pressure of differing heights and/or cut-in pressure, can alternately select these pressure to come control of pump.Thus, through using lower or higher disconnection and/or cut-in pressure, can this compressed water generation apparatus be used in ECO pattern or the POWER pattern.
Description of drawings
With reference to preferred embodiment and by accompanying drawing the present invention is done further explanation below, wherein only described to understanding characteristic essential to the invention.
Fig. 1 shows compressed water generation apparatus, and it has the pressure sensor in water pump, compensation vessel and the gas reservoir.
The specific embodiment
Fig. 1 shows a kind of compressed water generation apparatus with water pump 1, and water pump comprises drive motors 2, and the extraction mechanical device that this drive motor drives is actual also is transported to outlet A on the pressure side with water from the inlet E of suction side.On the pressure side being connected with the water receiver 5.4 of compensation vessel 5 of water pump 2 through tube connector 6.Compensation vessel 5 has outer wall 5.1 and is positioned at inner barrier film 5.3, and this barrier film was opened gas reservoir 5.2 and water receiver in 5.4 minutes.In addition, in the compressed water generation apparatus of realizing according to the present invention, gas pressure sensor 7 is positioned at the zone of gas reservoir 5.2, accounts for leading air pressure and is transferred to controller 8 in this gas pressure sensor measurement gas memory.In addition, can also be alternatively in the suction side or flow transmitter 9 better is installed on the pressure side, its information with relevant current flux is transferred to controller 8.With measured pressure, possibly also have the measured flow information relevant with state (for example alarm condition) on controller 8, to show through screen 4 with other operational factor.In addition, can also sound and/or optical signal generator be installed at this.
When bringing into operation, in the gas reservoir 5.2 of compensation vessel 5, there is given in advance gas flow V
1, it has preset initial pressure P
1When on the pipe-line system that waterworks is connected to house at weekend for example, house trailer or ship, water pump 1 will absorb water through the inlet E of its suction side for a long time, and the pipe-line system on outlet A on the pressure side is filled, and reaches predetermined opening pressure.In case in pipe-line system, reach with gas reservoir in initial pressure in 5.2 equate pressure the time, water receiver 5.4 also is full of by water and enlarges.The volume of gas reservoir 5.2 reduces on the contrary simultaneously.Correspondingly, the volumetric change in the gas reservoir 5.2 raises air pressure pro rata, the volume V2 in opening pressure P2 that reaches water pump and gas reservoir.At this, the pipe-line system of water-aspirator pressure side, the hydraulic pressure in the water receiver is close to air pressure in the gas reservoir and equates in other words.Ignore the resilient force and the Influence of Temperature of the wall of barrier film 5.3, can get Boyle-Mariotte equation: P at this
1* V
1=constant=P
2* V
2
Should select the initial pressure of gas volume like this:, in water receiver 5.4 or in gas reservoir 5.2, produce maximum volumetric change Δ V corresponding to preset water pump opening pressure and cut-in pressure.Like this, this volumetric change is corresponding under disconnecting the situation of water pump, being transported to the maximum amount of water in the pipe-line system by compensation vessel.
The waterworks that utilization realizes according to the present invention can be judged based on the pressure measxurement that is arranged in the gas volume now, and whether the gas flow in the gas reservoir 5.2 is positioned at the range of tolerable variance of the normal operation of waterworks.To begin following measuring period for this reason:
After the connection periodicity of setting is not connection pump under cut-in pressure, but waits for the time of setting (for example 25 seconds), sees whether the pressure in the system drops to predetermined pressure (for example 1.5bar).If in the time of setting, this predetermined pressure does not descend, and then the filling of the gas in the container is enough.And if in the time of this setting, should be lower than specific threshold value by predetermined pressure, for example be lower than 1.5bar, then started second timer for example 25 seconds, wait for that this time goes over, see whether pressure drops to and be lower than another pressure threshold, for example 1.3bar.If like this, then send alarm signal, also can select to start automatic make-up pump and get air pressure.
It is pointed out that above-mentioned characteristic of the present invention not only can be used in any combination that provides, and can be used for other combination or use separately without departing from the present invention.
Reference numerals list
1 water pump
2 drive motors
3 extract mechanical device
4 screens
5 compensation vessels
5.1 the wall of compensation vessel
5.2 gas reservoir
5.3 rubber bubble
5.4 water receiver
6 connecting lines
7 gas pressure sensors
8 controllers
9 flow transmitters
A on the pressure side exports
E suction side inlet
Claims (15)
1. a compressed water generation apparatus is used for to water pressuring system supply fresh water, and it has:
1.1 water pump (1), it carries out pressure control through at least one pressure sensor to it, and this water pump absorbs water from the port (E) of suction side, and sends in the said water pressuring system,
1.2 compensation vessel (5) is provided with flexible partition in this container, wherein, be provided with water receiver (5.4) in a side of said barrier film, and be provided with gas reservoir (5.2) at the opposite side of said barrier film, at this, said water receiver (5.4) is connected with pressure system,
1.3 port (A) on the pressure side, this port are connected with said water pressuring system and
1.4 controller (8) is in service normally, when being lower than preset cut-in pressure, this controller is connected said water pump (1), and when surpassing higher preset opening pressure, this controller cuts off said water pump (1),
It is characterized in that,
1.5 said at least one pressure sensor is gas pressure sensor (7), it is connected with said gas reservoir (5.2) in order to control said water pump (1), to measure the pressure in the said gas reservoir (5.2).
2. compressed water generation apparatus as claimed in claim 1; It is characterized in that; The controller of said water pump (1) has the processor that comprises program storage, and wherein, this processor unit is carried out at least one and left the logical program in the said program storage in when said compressed water generation apparatus moves.
3. compressed water generation apparatus as claimed in claim 2 is characterized in that, with at least one logic programming of leaving in the said program storage does, it carries out the inspection to the compactedness of said gas reservoir (5.2) when processor moves.
4. compressed water generation apparatus as claimed in claim 3; It is characterized in that; With said at least one be used to check that the logic programming of the compactedness of said gas reservoir (5.2) does, it is in operation carries out the measuring period of repetition, wherein; Measurement is the air pressure in the said gas reservoir (5.2) when said water receiver (1) emptying, and infer the functional of said compensation vessel (5) from measured air pressure.
5. like claim 3 or 4 described compressed water generation apparatus, it is characterized in that, with said at least one be used to check that the logic programming of the compactedness of said gas reservoir (5.2) is to make it can carry out following functional steps:
-ignore the situation when being lower than said cut-in pressure,
-wait for predefined very first time interval elapses, and check whether the air pressure in the said gas reservoir (5.2) is lower than the first preset minimum pressure in the said interim very first time,
-when being lower than the said first preset minimum pressure, began for second time interval, inspection during this period, whether air pressure is reduced to said second minimum pressure,
If-in said second time interval, reach said second minimum pressure, then trigger and report to the police.
6. compressed water generation apparatus as claimed in claim 5 is characterized in that, with said at least one logic programming does, makes its display alarm message on said pump.
7. like claim 5 or 6 described compressed water generation apparatus, it is characterized in that said warning message triggers audible ringing signal.
8. like each described compressed water generation apparatus in the claim 5 to 7, it is characterized in that, be arranged to the gas pressure supply of said gas reservoir (5.2), and the gas that said warning message starts in said gas reservoir (5.2) is carried.
9. compressed water generation apparatus as claimed in claim 8 is characterized in that, controlled air pump is set as the gas pressure supply, and it is connected with said gas reservoir (5.2).
10. like each described compressed water generation apparatus in the claim 3 to 9; It is characterized in that said logical program has counter, in order to write down the pump periodicity of said water pump (1); And after reaching preset number, start inspection to said gas reservoir (5.2) compactedness.
11. like each described compressed water generation apparatus in the claim 8 to 10; It is characterized in that; Said logical program also has another counter; In order to the periodicity that recharges of said gas reservoir (5.2) in the unit number in pump cycle of being recorded in said water pump (1) and/or in the unit interval, and after surpassing preset number, send warning.
12. like each described compressed water generation apparatus in the claim 1 to 11, it is characterized in that, be provided with flow transmitter (9).
13. like each described compressed water generation apparatus in the claim 3 to 12; It is characterized in that; In said program storage, deposit logical program, do, after said water pump (1) is connected this logic programming; And when surpassing that gas pressure does not change after the preset time, this logical program is closed said water pump (1).
14. like claim 12 or 13 described compressed water generation apparatus; It is characterized in that; In said program storage, deposit logical program, do, after said water pump (1) is connected this logic programming; Flow minimum with gas pressure not have the variation situation under, this logical program is closed said water pump (1).
15., it is characterized in that like each described compressed water generation apparatus in the claim 1 to 14, the opening pressure of two differing heights is set, can alternately select these pressure to control said water pump (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010044304.2A DE102010044304B4 (en) | 2010-09-03 | 2010-09-03 | Druckwasserwerk |
| DE102010044304.2 | 2010-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102433912A true CN102433912A (en) | 2012-05-02 |
Family
ID=45595378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110263319XA Pending CN102433912A (en) | 2010-09-03 | 2011-09-02 | Pressurized water supply device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102433912A (en) |
| DE (1) | DE102010044304B4 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401934A (en) * | 2016-12-16 | 2017-02-15 | 浙江美泰泵业科技有限公司 | Intelligent control structure of water pump |
| CN106481569A (en) * | 2016-12-16 | 2017-03-08 | 浙江美泰泵业科技有限公司 | A kind of intelligent water pump |
| CN112411683A (en) * | 2020-11-23 | 2021-02-26 | 王霞伟 | Diaphragm expansion tank for water network pressure compensation |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019128519B4 (en) * | 2019-10-22 | 2021-08-05 | Einhell Germany Ag | Water supply system |
| CN114809200B (en) * | 2022-06-14 | 2023-01-24 | 南京科技职业学院 | Non-negative pressure water supply equipment and water supply method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0437911A (en) * | 1990-06-01 | 1992-02-07 | Tsurumi Mfg Co Ltd | Water supply controller |
| CN2549510Y (en) * | 2002-06-21 | 2003-05-07 | 朱家顺 | Liquid pressure stabilizer |
| CN2587945Y (en) * | 2002-12-26 | 2003-11-26 | 张明亮 | Automatioc bulance type no-negative pressure water supply equipment without air pollution |
| CN2587944Y (en) * | 2002-12-26 | 2003-11-26 | 张明亮 | Prepressured no-negative pressure water supply equipment without air pollution |
| EP2208892A2 (en) * | 2009-01-16 | 2010-07-21 | Emil Lux GmbH & Co. KG | Water supply installation |
-
2010
- 2010-09-03 DE DE102010044304.2A patent/DE102010044304B4/en active Active
-
2011
- 2011-09-02 CN CN201110263319XA patent/CN102433912A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0437911A (en) * | 1990-06-01 | 1992-02-07 | Tsurumi Mfg Co Ltd | Water supply controller |
| CN2549510Y (en) * | 2002-06-21 | 2003-05-07 | 朱家顺 | Liquid pressure stabilizer |
| CN2587945Y (en) * | 2002-12-26 | 2003-11-26 | 张明亮 | Automatioc bulance type no-negative pressure water supply equipment without air pollution |
| CN2587944Y (en) * | 2002-12-26 | 2003-11-26 | 张明亮 | Prepressured no-negative pressure water supply equipment without air pollution |
| EP2208892A2 (en) * | 2009-01-16 | 2010-07-21 | Emil Lux GmbH & Co. KG | Water supply installation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401934A (en) * | 2016-12-16 | 2017-02-15 | 浙江美泰泵业科技有限公司 | Intelligent control structure of water pump |
| CN106481569A (en) * | 2016-12-16 | 2017-03-08 | 浙江美泰泵业科技有限公司 | A kind of intelligent water pump |
| CN106481569B (en) * | 2016-12-16 | 2024-03-22 | 浙江美泰泵业科技有限公司 | Intelligent water pump |
| CN112411683A (en) * | 2020-11-23 | 2021-02-26 | 王霞伟 | Diaphragm expansion tank for water network pressure compensation |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010044304B4 (en) | 2016-03-10 |
| DE102010044304A1 (en) | 2012-03-08 |
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| PB01 | Publication | ||
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Application publication date: 20120502 |