CN1023344C - Fluid feeding system - Google Patents
Fluid feeding system Download PDFInfo
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- CN1023344C CN1023344C CN 87106412 CN87106412A CN1023344C CN 1023344 C CN1023344 C CN 1023344C CN 87106412 CN87106412 CN 87106412 CN 87106412 A CN87106412 A CN 87106412A CN 1023344 C CN1023344 C CN 1023344C
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- flow
- valve
- limiting valve
- disk
- control valve
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Abstract
The present invention relates to a system for controlling fluid flow by a flow limiting valve, wherein the flow limiting valve is installed near liquid discharge holes in a liquid feed system so as to regulate and control the liquid pressure and the liquid discharge quantity in each liquid discharge hole, voltage is caused to be uniformly distributed in each liquid discharge hole in the liquid feed system, and the pressure gradient is basically eliminated so as to reduce the liquid and energy consumption.
Description
The present invention relates to a kind of flow-limiting valve that utilizes and control a kind of liquid-supplying system, this flow-limiting valve is suitable for being installed in one on the close position of one or more outages in the drift net, thereby controls the lifting rate in these outages.
In the past in water supply network, there are in the system many problems such as outage place water flow is unstable and inhomogeneous.These problems not only obviously are in the small-sized domestic water supply net system in interest up to now, and are present in the large scale system.Be connected in series a series of outages in large scale system, one of them outage is near the water source, and the distance at remaining outage and water source increases successively gradually.In the outage of series connection structure, there is a pressure gradient usually.
The uneven phenomenon of pressure often appears in the place that is vertically separated with respect to the one group of outage in water source, for example in relying on the overhead water tank of gravity water supply or outage be basically flatly from as always the water source the pipe pressure water storage box under the separated situation.
The reason of pressure transient has many aspects (not considering earlier the influence of phase mutual friction between pipeline distributed dimension and water and the tube wall).
At first, when no matter water is under action of gravity, still under the pressure effect that produces mechanically as total pipe pressure, no matter when one has the water source of pressure to flow out or must supply with water many when being serial connection or outage arranged side by side for same source pressure, when all or part of work of these outages, because water is attempted between the outage of downstream to walk by upstream discharge opeing orifice flow arriving at, so the pressure of water supply network tail end outage will reduce significantly.The variation in pressure at each outage place occurs in the whole drain line that connects outage.
Outage is horizontally basically with respect to the water source or vertical arrangement all will produce same phenomenon.
Pressure significantly reduces to occur in total pipe pressure and must arrive roughly under the situation of the height more than the ground.When every floor all was equipped with outage, this phenomenon may occur in apartment or the multiple dwelling.The outage of low layer will seize the water in the high-rise outage, the instability that build-up of pressure distributes.
To a certain extent, particularly for the shower system, by the metering function of common shower nozzle, problem can be resolved, but can not reach in satisfied level.
Have a water supply network system under the situation of some showers that have a water mixing device, the pressure between cold water source and thermal water source often changes.For example, if cold water transmit be by total pipe pressure and hot water to transmit be to utilize this phenomenon of gravity just may produce.When in house steward's pressure hot water supply system seepage being arranged, this phenomenon also can produce.
This causes needing to set up backpressure mixing watering machine at the pressure piping place of maximum.
When current are restricted at the shower head place, the mixed flow from shower head is difficult to normally control to such an extent as to high pressure is preponderated.When the hot water drops, cold water pressure may force the hot water bibcock to jump valve (jumper valve), closes or produces a recoil and make cold water enter hot-water line.Situation is just in time opposite if the heat hydraulic pressure becomes greatly.
In the water supply network system, another problem of existence is will cause the pressure surge at other outage place in the system when the bibcock in the water supply network system opens and closes.This phenomenon can be noted that in domestic water supply net system the people in shower can know temperature or pressure or their both decline, and this is owing to be in the result of another bibcock effect in this house in the same hot water net system.
Documents CN86261190U utility model patent discloses a kind of transformation constant current valve in the water system, and its leading portion is the same with common valve, and its back segment is spring cone with holes and goes out the underpressure chamber that the chamber constitutes behind the head piece.When hydraulic pressure surpassed specified value, cone with holes was inserted to going out head piece, thus the flow of controlled water flow.It also can control the discharge pressure of each liquid outlet, and the control drain discharge makes it stable, but the transformation constant current valve that its goal of the invention provides a kind of " making rate of discharge and pressure independent ".
And the present invention is intended to by utilizing a fluid flow regulating system to overcome these or some other problem.This system reaches metastable flow-limiting valve with a discharge opeing pressure that is used for making each the outage place in system and combines.So the objective of the invention is to make the discharge opeing pressure at each outage place in the water supply network system to reach relatively stable, control the lifting rate in the outage, regulate the drain age velocity in the outage.
An outstanding advantage of the present invention is to be installed in the outage in the water supply network system or during near it the consumption of conserve water and energy spending significantly when flow-limiting valve.
The present invention that puts it briefly most comprises the system of a flow quantity in the one or more outages that are used for being adjusted in a pipeline or the grid, and said system comprises:
Hydraulic power;
Control valve, this control valve comprises outlet, import, valve seat and the passage between import and valve seat between importing and exporting;
Control valve is exported the tube equipment that is communicated with hydraulic power; And
Be seated in the flow-limiting valve in the control valve internal channel, described flow-limiting valve also comprises the disk that is fixed between the passage, the through hole that has at least one feed flow stream to pass through on this disk;
One is connected with described disk or is linked as holistic conical part with described disk, the central shaft of this conical part and the central shaft of disk are in a straight line, it is characterized in that: the maximum diameter of described conical part is less than the diameter of this disk, and this maximum diameter is partly away from this disk, this conical part can be used to make liquid stream to flow through along its outer surface and between the inwall of its outer surface and control valve passage, the liquid stream emission index of this flow-limiting valve is crossed in the adjustable rectification of this flow-limiting valve, make emission index be no more than a predetermined maximum value, all open when control valve and to close and flow-limiting valve when breaking away from, the liquid by this flow-limiting valve flows emission index will be lower than at that time maximum emission rate by control valve.
Flow-limiting valve in control valve that is suitable for being installed in feed flow pipeline or the pipe network, it is used for limiting the flow quantity at the one or more outages place in feed flow pipeline or the pipe network, and said flow-limiting valve comprises:
One is that wherein first parts are run through in the hole that has at least of plane basically; And
One and interconnected second parts of above-mentioned first parts;
Wherein, when flow-limiting valve was installed in the feed flow pipeline, the discharge opeing speed in the structure can regulate outage of flow-limiting valve made said discharge opeing speed be no more than a predetermined maximum value.
An interchangeable form of the present invention comprises a flow-limiting valve that is suitable for being installed in the valve seat part of a bibcock; This flow-limiting valve comprises one first parts and one second parts, and both are coupled to each other together; Said first parts have one, and to be fixed on be stem stem on the disk of plane basically, and disk is provided with a sealed member and is used for engaging with valve seat in bibcock; Disk has a boss post from wherein extending basically; Said second parts comprise a valve body that is fixed on the above-mentioned boss post, and described valve body has a cylindricality projection, and it is suitable for being installed in the liquid chunnel of bibcock; When open above-mentioned bibcock allow liquid stream therefrom by the time, liquid stream acts on the flow-limiting valve, and flow-limiting valve is moved in liquid chunnel, controls through the flow of valve body thereby has limited flow quantity by the cylindricality projection of valve body, has reduced the backpressure of liquid thus.
In the most preferred embodiment of this form of the present invention, flow-limiting valve is a raw material manufacturing by brass or plastics, and first parts of flow-limiting valve are made of a common jumping valve.Jump valve like this and be performed such improvedly, valve body is fixedly mounted on the boss post of jumping valve.More preferably, the valve body of jumping valve has comprised two parts of flow-limiting valve and has been cast or is cast into one well imagines, if these two parts of words that need can removably be coupled to each other.
It is columniform projection basically that valve body preferably comprises one, and it is suitable for being installed in the liquid chunnel of a common valve rod.In this case, this liquid chunnel is in the improved valve seat that is in the valve rod.
Another form of the present invention comprises:
A valve member that is used for limiting and being controlled at a liquid chunnel in the feed flow pipeline; Described valve member comprises:
One be suitable for the valve seat fluid-tight engagement the axle;
One is installed in a flow-limiting valve in the valve base channel;
Wherein, in the time of in above-mentioned flow-limiting valve is packed above-mentioned valve seat into, said flow-limiting valve is regulated the discharge opeing speed in the above-mentioned feed flow pipeline outage, makes it be no more than a predetermined maximum value.
Describe the present invention with reference to a most preferred embodiment (but being not limited thereto embodiment) below, wherein:
Fig. 1 represents the current-limiting apparatus by most preferred embodiment;
Fig. 2 represents a sectional view that is installed in a flow-limiting valve in the bibcock seat as shown in Figure 1;
Fig. 3 represents the flow-limiting valve by an interchangeable structure, and it is suitable for being threaded with a bibcock seat;
Fig. 4 represents the flow-limiting valve in the bibcock seat of being installed in as shown in Figure 2, and it is installed in the bibcock parts threadably;
Fig. 5 has represented the test result that obtains in the flow-limiting valve device from single shower net with diagramatic way.
Referring to flow-limiting valve 1 according to a most preferred embodiment of its expression of Fig. 1, it is suitable for being installed in the one or more bibcocks that are arranged in a liquid drift net.
This flow-limiting valve 1 comprise a disk 2 and one be fixed on the disk 2 and diameter than round shallow bid truncated cone shape parts 3.Four holes 4 that diameter is identical are preferably arranged on the disk 2, and the good wheelbase in flow-limiting valve of these four Kongzuis is from equating.Fig. 1 from different several direction indications this flow-limiting valve so that the people can understand its shape and structure fully.
Field experiment has shown that on the shape of the flow-limiting valve of describing as Fig. 1 and the conformation function be effective.
What Fig. 2 represented is the flow-limiting valve in the bibcock seat 5 that is installed in shown in Figure 1.The disk 2 of flow-limiting valve 1 imbeds in the annular groove 6 of valve seat 5 bottoms.During work, valve seat 5 is installed in the common bibcock, and bibcock is installed in the grid successively, preferably is installed near the outage.
By screw thread 8 valve seat 5 is assemblied on common hydrant or other the similar control valve unit (not shown).
Fluid from feed liquid pipeline in the use axially passes through passage 7 by way of the hole 4 on the flow-limiting valve 1.The appearance of valve 1 has limited flow quantity so that no matter the liquid supply pressure of flow-limiting valve upstream is much, the pressure in flow-limiting valve downstream will be constrained to and be no more than a predetermined maximum value.No matter have what additional outages in the feed flow net, this influence all can repeat on each outage.According to the type that is installed near the flow-limiting valve the outage, the pressure at each outage place can keep equating.By changing the structure of the valve on the different liquid hole, pressure also can change as required.
Fig. 3 represents the flow-limiting valve by an interchangeable embodiment, and wherein disk 2 is suitable for being installed in the valve seat shown in Figure 4 10 by screw thread 9.In the embodiment of Fig. 4, valve seat 10 is installed on the common bibcock threadably.
This flow-limiting valve can be screwed into the bottom of screwed valve seat 10 at work.Liquid stream passes through passage 14 through the space between cone 13 and valve seat 10 inwalls then by the hole on the disk on the flow-limiting valve 12 11.Hole 11 is played limited flow and the pressure in flow-limiting valve downstream is descended.
Give regularly in flow rate, the pressure between hole 11 and the liquid chunnel parts represented with label 15 will reduce.
15 liquid degree of hastening will reduce in the position.
Fig. 5 depicts with diagramatic way a flow-limiting valve is packed in the shower compounder systems that contains an outage and the experimental result that draws.
The increase backpressure that this figure demonstrates with flow obviously descends.
Can see that from this width of cloth figure flow-limiting valve device of the present invention almost can be eliminated the backpressure in mixing watering machine fully, and the backpressure in the hydrophone just may produce in other cases.
Another advantage of this flow-limiting valve is that the mixing water of one group of maximum flow is flowed by outage.
For example those are known is contained in current-limiting apparatus on the shower outage, does not allow flow to carry out controllable adjustment, particularly when the bibcock that nestles up the feed flow source is opened fully.
The part of figure acceptance of the bid A has been represented the metering function that caused by shower nozzle.
The part of figure acceptance of the bid B is represented to make backpressure obviously reduce by using the flow-limiting valve device on the control bibcock body of the present invention.
Flow-limiting valve is experimentized in the shower bath of many serial connections, and the result is: the backpressure on each mixer apparatus all decreases.
Equally, the pressure gradient between the serial connection shower nozzle also obviously reduces.
When flow-limiting valve was contained in the hot water bibcock, the result was that hot water flow can be stabilized on the predetermined value, thereby has saved considerable energy consumption.This is to utilize through variable cold water flow in the bibcock to reach balanced.
Therefore in practicality, flow-limiting valve has been controlled the use of hot water effectively, shown in test, thereby has saved considerable energy consumption.
Field experiment shows: when one group of flow-limiting valve is installed in the water supply network system, economize on water 22% at least, if the variable as the number of using this water reticulation system in water temperature and a certain special time is taken into account energy-conservation at least 28%.
In having the liquid control system that is installed near the flow-limiting valve the various outages, can save the liquid and the energy, each outage all is constrained to the pressure and the flow rate of a maximum, and this pressure is lower than the pressure of supply water in the pipeline of supplying with various outages.
When other tap was opened, a metastable pressure and temperature was maintained at each outage place.And then owing to controlled the liquid capacity in the mixing arrangement, the backpressure at tap or bibcock place will be eliminated.
It is found that the characteristic of flow-limiting valve is installed in control the given shape and the structural change of the flow-limiting valve in the water supply network.
Following data obtain on three mutually different flow-limiting valves of diameter.
The pressure in static pressure KPa flow rate flow-limiting valve zone
1 600 3L/M 530
2 600 4.25L/M 420
3 600 6.5L/M 180
Claims (2)
1, a kind of liquid stream supply system comprises: hydraulic power;
Control valve, this control valve comprises outlet, import, valve seat and the passage between import and valve seat between importing and exporting;
Control valve is exported the tube equipment that is communicated with hydraulic power; And
Be seated in the flow-limiting valve in the control valve internal channel, described flow-limiting valve also comprises the disk that is fixed among the passage, the through hole that has at least one feed flow stream to pass through on this disk;
One is connected with described disk or is linked as holistic conical part with described disk, the central shaft of this conical part and the central shaft of disk are in a straight line, it is characterized in that: the maximum diameter of described conical part is less than the diameter of this disk, and this maximum diameter is partly away from this disk, this conical part can be used to make liquid stream to flow through along its outer surface and between the inwall of its outer surface and control valve passage, the liquid stream emission index of this flow-limiting valve is crossed in the adjustable rectification of this flow-limiting valve, make emission index be no more than a predetermined maximum value, when control valve all open and and flow-limiting valve when breaking away from, the liquid stream emission index by this flow-limiting valve will be lower than ought be by the maximum emission rate of control valve.
2, a kind of according to the described liquid flow control system of claim 1, it is characterized in that: on the described conical part tapered blind hole is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106412 CN1023344C (en) | 1987-08-09 | 1987-08-09 | Fluid feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87106412 CN1023344C (en) | 1987-08-09 | 1987-08-09 | Fluid feeding system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1031274A CN1031274A (en) | 1989-02-22 |
| CN1023344C true CN1023344C (en) | 1993-12-29 |
Family
ID=4815693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87106412 Expired - Lifetime CN1023344C (en) | 1987-08-09 | 1987-08-09 | Fluid feeding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1023344C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230037B (en) * | 2011-06-13 | 2014-11-12 | 武汉钢铁(集团)公司 | Method for controlling sand content of water body of blast furnace INBA circulating system and flow-limiting device thereof |
| TWI601694B (en) * | 2016-06-06 | 2017-10-11 | 拜普生醫科技股份有限公司 | Plasma liquid generating device |
-
1987
- 1987-08-09 CN CN 87106412 patent/CN1023344C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1031274A (en) | 1989-02-22 |
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