CN101614290A

CN101614290A - Change two bit traffic modulating valve of rule based on integer

Info

Publication number: CN101614290A
Application number: CN200910012803A
Authority: CN
Inventors: 吴海鹰; 游陆
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-30
Filing date: 2009-07-30
Publication date: 2009-12-30

Abstract

Change two bit traffic modulating valve of rule based on integer, comprise and import stream end cap, valve chest and valve body controller assemblies and derive the stream end cap, import and to offer the chamber of confluxing, upstream on the stream end cap, on the sidewall that imports the stream end cap, the importing discharge orifice is arranged, derive and to offer the chamber of confluxing, downstream on the stream end cap, on the sidewall of deriving the stream end cap, the derivation discharge orifice is arranged; Offer a plurality of guide channels and a plurality of valve channel in the valve chest; Each valve channel is certain angle of cut with corresponding guide channel; On each guide channel, be equiped with controlled valve body; Import the stream end cap and be connected, derive the stream end cap and be connected with the back-end sealing of valve chest with valve chest front end seal; The valve body controller assemblies is fixed on the valve chest, a plurality of controlled valve bodies respectively with the valve body controller assemblies in the interface of corresponding valve body controller connect.The present invention not only can accurately control the variation of fluid flow, and the high linearity that can change from sensitivity, validity and the total travel of this variation of principle assurance.

Description

Change two bit traffic modulating valve of rule based on integer

Technical field

What the present invention relates to is life or industrial process, especially the fluid flow regulation equipment in the hydraulic control, the concrete accurate control that relates to liquid in life or the industry or gas (general designation fluid) logistics, be apparent that most to make fluid flow in the hydraulic control system, be the accurate controller of a kind of flow (device) that the arbitrary integer rule changes.

Background technique

We know, no matter still are that the control of fluid flow is a general and important job in the industrial and agricultural production in life.Especially when needs were accurately controlled flow, this work usually became the task of being difficult to finish.

Traditionally, this work we be used in the valve that can continuously change the fluid flow area that is provided with in the pipeline to regulate.Because the valve position of this valve is multistage or even stepless continuous changes, thereby realize the change and the control of fluid flow, so we can call the analog amount control mode to this state of a control, corresponding valve is called the analog amount modulating valve.

A significant drawback of analog amount modulating valve or analog amount control mode is that it can be the continuous state step-less adjustment in theory, but in the actual implementation process, but is difficult to be stabilized on the operation point that needs, and both flow control was accurate inadequately, and drift easily.

In addition, in the analog amount modulating valve, because the working principle decision, the linearity that changes in the sensitivity of its variation and the total travel all difficulty has breakthrough improvement, causes thus to use it, is difficult to carry out accurately system's control, the control of quality that is application system is limited, the cost height.

Summary of the invention

Purpose of the present invention is for solving shortcoming and the not enough a kind of two bit traffic modulating valve that change rule based on integer that propose that the traditional analog adjustable valve exists.This modulating valve based on brand-new control principle, not only can accurately control the variation of fluid flow, and the high linearity that can from sensitivity, validity and the total travel of this variation of principle assurance, change, can be the structure of breakthrough simplification application system and the control of quality of very big raising system prerequisite is provided.

The technological scheme that adopts is:

Change the two bit traffic modulating valve of restraining based on integer, comprise importing stream end cap, valve chest, controlled valve body and controller assemblies and derivation stream end cap.

Described importing stream end cap (see figure 2) is the fluid slot of a concave, and sunk part forms a cavity, is referred to as the chamber of confluxing; Diapire in the chamber of confluxing has a pod apertures to communicate with the chamber of confluxing, and is referred to as to import discharge orifice, the fluid caliber coupling that this aperture that imports discharge orifice should be connected with the outside; For the fluid circuit that is connected with the outside connects, in this importing discharge orifice screw thread should be arranged, but this imports also extension of discharge orifice, forms one and has externally threaded diversion column, to be connected with the external fluid pipeline; The opposite side that imports the stream end cap is connected with valve chest is airtight, imports the stream end cap for this reason and has some bolts hole; After importing stream end cap was connected with valve chest is airtight, the chamber of confluxing communicated with each guide channel of valve chest.

Described valve chest is cuboid, cylindrical body or a multiedge cylinder that has a plurality of guide channels, the sectional area of a plurality of guide channels have nothing in common with each other (as required, some also can be identical); Each guide channel can lead directly to, and also can misplace; For each straight-through guide channel, any position between its two ends, guide channel for each dislocation, jointing place at two guide channels that misplace, be provided with one and can allow the controlled valve body valve channel of motion freely therein, this controlled valve body is the parts that can control fluid flow in the passage of place or cutout; All guide channels can be arranged in plane configuration, also can be arranged in solid shape or ring type form (situation for example shown in Figure 4); The two ends of valve chest cuboid respectively with import the stream end cap and derive and flow end cap with bolt or alternate manner (for example welding, gluing etc.) the airtight connection; As connecting, also to be respectively equipped with some bolt connecting holes at the two ends of valve chest with bolt.The top of valve chest cuboid, promptly a side of valve channel and exterior also will be connected with valve body and controller, and its Placement is identical with preceding method.

Described valve body and controller are checking-valve body that is complementary with each water conservancy diversion path and the power plant that drive them; Valve body designs according to the difference and the different of driving mode of each water conservancy diversion path, can require design according to the valve body of stop valve aspect blocking characteristics; And drive their power plant, and can be mechanical, electromagnetism, dynamo-electric, also can be (situation for example shown in Figure 3) of pneumatic or hydraulic pressure.

The structure of described derivation stream end cap is with to import the stream end cap identical, just act on and installation direction in contrast, correspondingly the pod apertures here is referred to as to derive discharge orifice.

Change the working procedure and the Principles of Regulation of two bit traffic modulating valve of rule based on integer

At the importing discharge orifice of the two bit traffic modulating valve that change rule based on integer and derive after discharge orifice connects with fluid line, fluid is through importing discharge orifice and flow into and being full of the chamber of confluxing that imports the stream end, is full of thereupon and imports each guide channel that stream holds the chamber of confluxing to link to each other; Valve body on guide channel is in cut-off state, fluid just stops at guide channel and valve body jointing place, otherwise fluid flow to be derived the chamber and be full of each fluid passage that is attached thereto of confluxing of stream end by guide channel, after derive the downstream that discharge orifice flows to fluid line.Clearly, in the importing of this flow control valve, when leadout hole two ends pressure reduction is constant, the fluid flow of this process depends on the net sectional area sum of the fluid passage that all are in opening state.As described above, owing to the digital flow modulating valve, be provided with the different water conservancy diversion path of some flow areas by the industrial grade requirement, each path is provided with one to have " standard-sized sheet is logical " and the fluidised form control valve body of " complete shut-down is disconnected " two states.As required, fluidised form control valve body on the different water conservancy diversion paths, can be in different " open-minded " or " shutoff " state, various combination by these states, the two bit traffic modulating valve that change rule based on integer can form by 0 flow (complete shut-down is disconnected) to peak rate of flow (standard-sized sheet is logical), are that the one-tenth integer multiple of unit changes the flow regulator of (be natural number or be designed to the numeral variation of any rule of needs) with the minimum discharge variable quantity.This adjustment process can be transferred to automatic controller and finish automatically.

The invention has the advantages that:

This modulating valve based on brand-new control principle, not only can accurately control the variation of fluid flow, and the high linearity that can from sensitivity, validity and the total travel of this variation of principle assurance, change, can be the structure of breakthrough simplification application system and the control of quality of very big raising system prerequisite is provided.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the present invention.

Fig. 2 is conflux chamber, downstream conflux chamber and a plurality of guide channel and a controlled valve body assembling schematic representation of upstream.

Fig. 3 is the end cap three-view diagram.

Fig. 4 is that the guide channel arrangement is the solid shape schematic representation.

Fig. 5 is a valve body controller schematic representation.

Embodiment

Change the two bit traffic modulating valve of restraining based on integer, comprise importing stream end cap 3, valve chest 4, valve body controller assemblies 7 and deriving stream end cap 12.Import stream end cap 3 be provided with the upstream conflux chamber 2 and with the upstream importing discharge orifice 1 that chamber 2 is connected that confluxes.Derive stream end cap 12 and be provided with the derivation discharge orifice 13 that confluxes chamber 11 and communicate with the dirty chamber 11 of confluxing in the downstream.Offer a plurality of guide channels 15 and a plurality of valve channel 8 in valve chest, each valve channel 8 is certain angle of cut with corresponding guide channel, and communicates.The valve body controller assemblies is made of a plurality of valve body controllers 16 that are installed in the controller shell 17.The valve body controller assemblies is fixed on the valve chest 4.Be equiped with controlled valve body 9 on each guide channel 15, each controlled valve body 9 is positioned at corresponding valve channel 8.Each controlled valve body 9 is separated into upstream guide channel 5 and downstream guide channel 10 with the guide channel at place.The interface of corresponding valve body controller 16 connects in each controlled valve body 9 and the valve component.Import stream end cap 3 and derive stream end cap 12, use a plurality of bolts 14 and 4 airtight connections of valve chest respectively, the chamber 2 of confluxing that connects back importing stream end cap 3 all communicates with each upstream guide channel 5 of valve chest 4.In like manner, the chamber 11 of confluxing of connection back derivation stream end cap 12 also all communicates with each downstream guide channel 10 of valve chest 4.

The state of the controlled valve body 9 of this digital flow modulating valve, be subjected to the control of valve body controller assemblies 7, meanwhile use bolt 6 valve body controller assemblies 7 and 4 airtight connections of valve chest, change each guide channel of two bit traffic modulating valve of rule like this based on integer, its working state is subjected to the control of valve body controller assemblies 7 fully.

During use, the importing discharge orifice 1 that imports on the stream end cap 3 is connected with the upstream fluid pipeline, and the derivation discharge orifice 13 of deriving on the stream end cap 12 is connected with the downstream fluid pipeline.

The fluid that is come by the upstream fluid pipeline flows into, is full of the chamber 2 of confluxing, upstream through importing discharge orifice 1, and flows into each upstream guide channel 5 on the valve chest 4 that is attached thereto; Whether can flow into downstream guide channel 10 by the state decision upstream guide channel 5 that is arranged on the controlled valve body 9 on each guide channel; If fluid flows into downstream guide channel 10, the chamber 11 of then all inflow being confluxed, and conflux through it and to flow to downstream line through deriving discharge orifice 13 again.

Obviously, under the situation that ambient conditions does not change, the flow through total discharge of this flow control valve of fluid will depend on the net sectional area sum of the water conservancy diversion path that all are opened on this flow control valve.

In this example, we get water conservancy diversion number of vias n=8, and promptly this is provided with 8 guide channels based on the two bit traffic modulating valve that integer changes rule, and the radius of each guide channel is respectively 0.1 of importing (going out) discharge orifice radius R, 0.1414,0.1732,0.2,0.3162,0.4472,0.5477 and 0.6325 times.Configuration changes the two bit traffic modulating valve of restraining based on integer like this, can be as required, control the state of controlled valve body on each water conservancy diversion path, allow them be in different " open-minded " or " shutoff " state, various combination by these states, should just can form by 0 flow (complete shut-down is disconnected) to peak rate of flow (standard-sized sheet leads to) based on the two bit traffic modulating valve that integer changes rule, with minimum discharge (this example be standard-sized sheet logical 1%) be base unit, become its integer multiple to change the fluid dram flow regulator of (the numeral variation that this example is the natural number rule).This adjustment process can be transferred to automatic controller and finish automatically.

Claims

1, change two bit traffic modulating valve of rule based on integer, comprise importing stream end cap (3), valve chest (4) and valve body controller assemblies (7) and deriving stream end cap (12), it is characterized in that:

Offer the chamber (2) of confluxing, upstream on the described importing stream end cap (3), on the sidewall that imports stream end cap (3), importing discharge orifice (1) is arranged, derive and to offer the chamber (11) of confluxing, downstream on the stream end cap (12), on the sidewall of deriving stream end cap (12), derivation discharge orifice (13) is arranged; Offer a plurality of guide channels (15) and a plurality of valve channel (8) in the valve chest (4), and the guide channel number is identical with the valve channel number; Each valve channel (8) is certain angle of cut with corresponding guide channel (15), and is connected; Be equiped with controlled valve body (9) on each guide channel (15), controlled valve body (9) places in the valve channel (8) corresponding with guide channel (15); Import stream end cap (3) and be connected, derive stream end cap (12) and be connected with the back-end sealing of valve chest (4) with valve chest (4) front end seal; Valve body controller assemblies (7) is fixed on the valve chest (4), a plurality of controlled valve bodies (9) respectively with valve body controller assemblies (7) in the interface of corresponding valve body controller (16) connect; Described controlled valve body (9) is a checking-valve body that is complementary with corresponding guide channel, is the parts that can control fluid flow in the guide channel of place or cutout.

2, two bit traffic modulating valve based on integer variation rule according to claim 1 is characterized in that described importing discharge orifice (1) and derive discharge orifice (13) that internal thread is arranged respectively, are threaded with the external fluid pipeline respectively; Each guide channel (15) can lead directly to, and also can misplace.

3, two bit traffic modulating valve based on integer variation rule according to claim 1 is characterized in that described a plurality of guide channel (15) is arranged in plane configuration, is arranged in solid shape or ring type form.

4, two bit traffic modulating valve based on integer variation rule according to claim 1 is characterized in that described controlled valve body (9) is direct-passing mode or rotation mode when block fluid.

5, two bit traffic modulating valve based on integer variation rule according to claim 1 is characterized in that described valve chest (4) is cuboid, cylindrical body or multiedge cylinder.

6, the two bit traffic modulating valve that variation is restrained based on integer according to claim 1, it is characterized in that described importing stream end cap (3), deriving stream end cap (12) is cuboid, cylindrical body or the multiedge cylinder of being with the chamber of confluxing.

7, two bit traffic modulating valve based on integer variation rule according to claim 1 is characterized in that effective actual internal area of described a plurality of guide channel (15) is identical or inequality.