CN202852030U - Dual-regulating control valve - Google Patents
Dual-regulating control valve Download PDFInfo
- Publication number
- CN202852030U CN202852030U CN 201220476432 CN201220476432U CN202852030U CN 202852030 U CN202852030 U CN 202852030U CN 201220476432 CN201220476432 CN 201220476432 CN 201220476432 U CN201220476432 U CN 201220476432U CN 202852030 U CN202852030 U CN 202852030U
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- Prior art keywords
- liquid outlet
- valve body
- control valve
- control
- entering hole
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Abstract
The utility model discloses a dual-regulating control valve which comprises a control valve main body, wherein a liquid inlet channel and a liquid outlet channel used for flowing in or flowing out of fluids in a system are arranged on the control valve main body. The control valve main body is further provided with a control valve core containing cavity used for containing a control valve core, the cavity body wall of the control valve core containing cavity is provided with a first liquid inlet, a second liquid inlet and a liquid outlet, a large valve body used for sealing the first liquid inlet and the liquid outlet is arranged in the control valve core containing cavity, the bottom wall of the large valve body is further provided with a vice liquid outlet, a small valve body is arranged on the bottom wall of the large valve body, the small valve body covers the vice liquid outlet, the side wall of the small valve body is provided with a vice liquid inlet used for being communicated with the control valve core containing cavity and the vice liquid outlet, and the control valve core is connected with the vice liquid outlet in an abutted mode. According to the dual-regulating control valve, by means of large valve body control and small valve body control, the flow control range of a control valve can be expanded, and therefore the dual-regulating control valve has a large adjustable ratio.
Description
Technical field
The utility model relates to fluid throttle device technical field, particularly a kind of pair of adjusting control valve.
Background technique
In fluid piping system, tend to run into such a case, namely need the flow of convection cell to control, and the minimum difference of the flow of the maximum value of the flow of controlling and control is larger.In the throttle device technical field, the throttle part that can be used in above-mentioned situation is referred to as the throttle part with larger regulating ratio.
Generally speaking, this situation is multiple for example is born in: boiler main feedwater and secondary water supply system; The system that round the clock flow supply is differed greatly.
At present, in the market like product such as ZAZM, ZXM, ZDLM jacket cylinder modulating valve, HCB type cage regulating valve of two-seater, 501G, 501B series cage guiding type modulating valve, because its regulative mode is single adjusting, namely be merely able to solely the opening degree of communication port be regulated, thereby realize the adjusting of fluid flow, it is all smaller that so the regulating ratio of the control valve that provides in the prior art is provided in design.
In sum, how to provide a kind of control valve with larger regulating ratio, become those skilled in the art's problem demanding prompt solution.
The model utility content
The technical problems to be solved in the utility model is for providing a kind of pair of adjusting control valve, and this pair adjusting control valve can be so that the control valve that the utility model provides has larger regulating ratio by its structural design.
For solving the problems of the technologies described above, the utility model provides a kind of pair of adjusting control valve, is installed on the adjusting that is used for the fluid medium flow in the fluid piping system, comprises the control valve main body, offers feed pathway and liquid outlet channel on the described control valve main body,
Also offer control spool holding cavity on the described control valve main body, offer the first liquid entering hole, the second liquid entering hole and liquid outlet on the cavity wall of described control spool holding cavity, described the first liquid entering hole is connected with described feed pathway, described liquid outlet is connected with described liquid outlet channel, and described the second liquid entering hole is communicated with described feed pathway;
Be provided be used to the large valve body that seals described the first liquid entering hole and described liquid outlet in the described control spool holding cavity, also be provided with secondary liquid outlet on the diapire of described large valve body, be provided with little valve body on the diapire of described large valve body, secondary liquid outlet is stated in described little valve cover residence, and offers the secondary liquid entering hole that is connected with described control spool holding cavity and described secondary liquid outlet on the sidewall of described little valve body;
Be used for sealing described secondary liquid outlet and can driving the control spool that described large valve body moves, described control spool can move along its axis, and described control spool and described secondary liquid outlet connect.
Preferably, described large valve body is the large valve body of slot type structure, and the circumferential side wall of described large valve body is sealed described the first liquid entering hole, and the diapire of described large valve body seals described liquid outlet.
Preferably, an end of described control spool and described secondary liquid outlet butt is tapered end.
The utility model provides a kind of pair of adjusting control valve, is installed on the adjusting that is used for the fluid medium flow in the fluid piping system, comprises the control valve main body, offers the feed pathway and the liquid outlet channel that flow into or flow out for system's fluid on the control valve main body.Also offer the control spool holding cavity for accommodating control spool on the control valve main body, offer the first liquid entering hole, the second liquid entering hole and liquid outlet on the cavity wall of control spool holding cavity, the first liquid entering hole is connected with feed pathway, liquid outlet is connected with liquid outlet channel, and the second liquid entering hole is communicated with feed pathway.By said structure design, the fluid that circulates in the system can enter into control spool holding cavity through the first liquid entering hole and/or the second liquid entering hole again from the feed pathway inflow control valve, at last from liquid outlet through the liquid outlet channel outflow control valve.
In order to realize the control of fluid flow, the utility model carries out following structural design to two adjusting control valves: be provided with the large valve body for sealing the first liquid entering hole and liquid outlet in the control spool holding cavity, also be provided with secondary liquid outlet on the diapire of large valve body, be provided with little valve body on the diapire of large valve body, little valve body covers secondary liquid outlet, and offers on the sidewall of little valve body and the secondary liquid entering hole of controlling spool holding cavity and secondary liquid outlet and being connected; Be used for sealing secondary liquid outlet and can driving the control spool that large valve body moves, the control spool can move along its axis, and control spool and secondary liquid outlet connect.
By the said structure design as can be known, move when controlling spool, secondary liquid outlet will be opened, and will flow out by secondary liquid outlet at the process medium fluid of opening, and this moment, the flow adjustment range of secondary liquid outlet was limited.In order to enlarge the flow control scope of control valve, when will driving large valve body, control spool continuation unlatching moves, so that the first liquid entering hole is opened gradually, this moment, liquid outlet was open mode, realized flow control to the fluid of the present utility model of flowing through by the opening degree that increases gradually by the first liquid entering hole.
Provided by the utility model pair of adjusting control valve, owing to adopted two groups of systems that fluid flow is controlled, it is respectively large valve body control and the control of little valve body, can expand the flow control scope of control valve, so that the utlity model has larger regulating ratio.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
The structural representation of two adjusting control valves among a kind of embodiment of Fig. 1 the utility model;
The corresponding relation of component names and reference character is among Fig. 1:
Control valve main body 1;
Large valve body 2;
Control spool 4;
Feed pathway a; Liquid outlet channel b; The first liquid entering hole c; The second liquid entering hole d; Liquid outlet e; Secondary liquid entering hole f; Secondary liquid outlet j.
Embodiment
Core of the present utility model is for providing a kind of pair of adjusting control valve, and this pair adjusting control valve can be so that the control valve that the utility model provides has larger regulating ratio by its structural design.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, the structural representation of two adjusting control valves among a kind of embodiment of Fig. 1 the utility model.
The utility model provides a kind of pair of adjusting control valve, be installed on the adjusting that is used for the fluid medium flow in the fluid piping system, comprise control valve main body 1, offer the feed pathway a and the liquid outlet channel b that flow into or flow out for system's fluid on the control valve main body 1.Also offer control spool 4 holding cavities for accommodating control spool 4 on the control valve main body 1, offer the first liquid entering hole c, the second liquid entering hole d and liquid outlet e on the cavity wall of control spool 4 holding cavities, the first liquid entering hole c is connected with feed pathway a, liquid outlet e is connected with liquid outlet channel b, and the second liquid entering hole d is communicated with feed pathway a.By said structure design, the fluid that circulates in the system can enter into control spool 4 holding cavities through the first liquid entering hole c and/or the second liquid entering hole d again from feed pathway a inflow control valve, at last from liquid outlet e through liquid outlet channel b outflow control valve.
In order to realize the control of fluid flow, the utility model carries out following structural design to two adjusting control valves: be provided with the large valve body 2 for sealing the first liquid entering hole c and liquid outlet e in control spool 4 holding cavities, also be provided with secondary liquid outlet j on the diapire of large valve body 2, be provided with little valve body 3 on the diapire of large valve body 2, little valve body 3 covers secondary liquid outlet j, and offers on the sidewall of little valve body 3 and the secondary liquid entering hole f that controls spool 4 holding cavities and secondary liquid outlet j and be connected; Be used for sealing secondary liquid outlet j and can driving the control spool 4 that large valve body 2 moves, control spool 4 can move along its axis, and control spool 4 connects with secondary liquid outlet j.
By the said structure design as can be known, move when controlling spool 4, secondary liquid outlet j will open, and will flow out by secondary liquid outlet j at the process medium fluid of opening, and this moment, the flow adjustment range of secondary liquid outlet j was limited.In order to enlarge the flow control scope of control valve, when will driving large valve body 2, the 4 continuation unlatchings of control spool move, so that the first liquid entering hole c opens gradually, this moment, liquid outlet e was open mode, realized flow control to the fluid of the present utility model of flowing through by the opening degree that increases gradually by the first liquid entering hole c.
Provided by the utility model pair of adjusting control valve, owing to adopted two groups of systems that fluid flow is controlled, it is respectively large valve body 2 controls and 3 controls of little valve body, can expand the flow control scope of control valve, so that the utlity model has larger regulating ratio.
Particularly, in a kind of embodiment of the utility model, large valve body 2 is the large valve body 2 of slot type structure, and the circumferential side wall of large valve body 2 is sealed the first liquid entering hole c, the diapire sealing liquid outlet e of large valve body 2.The employing slot type structure can reduce the manufactured materials of large valve body 2, not only can reduce the manufacture cost of control valve, can also reduce the weight of large valve body 2, is convenient to regulate control.
Particularly, in specific embodiment, control spool 4 is tapered end with an end of secondary liquid outlet j butt in of the present utility model.
As a kind of general knowledge, when a port of conical part shutoff, in the process that conical part is opened gradually, the opening degree of port will be increasing until open fully.Therefore, in said structure, control spool 4 can be regulated in the process that control spool 4 is opened gradually by adopting tapered end in the gradual change of realization fluid flow.
Claims (3)
1. two adjusting control valve, be installed on the adjusting that is used for the fluid medium flow in the fluid piping system, comprise control valve main body (1), offer feed pathway (a) and liquid outlet channel (b) on the described control valve main body (1), it is characterized in that
Also offer control spool (4) holding cavity on the described control valve main body (1), offer the first liquid entering hole (c), the second liquid entering hole (d) and liquid outlet (e) on the cavity wall of described control spool (4) holding cavity, described the first liquid entering hole (c) is connected with described feed pathway (a), described liquid outlet (e) is connected with described liquid outlet channel (b), and described the second liquid entering hole (d) is communicated with described feed pathway (a);
Be provided with in described control spool (4) holding cavity be used to the large valve body (2) that seals described the first liquid entering hole (c) and described liquid outlet (e), also be provided with secondary liquid outlet (j) on the diapire of described large valve body (2), be provided with little valve body (3) on the diapire of described large valve body (2), described little valve body (3) covers described secondary liquid outlet (j), and offers the secondary liquid entering hole (f) that is connected with described control spool (4) holding cavity and described secondary liquid outlet (j) on the sidewall of described little valve body (3);
Be used for sealing described secondary liquid outlet (j) and can drive the mobile control spool (4) of described large valve body (2), described control spool (4) can move along its axis, and described control spool (4) connects with described secondary liquid outlet (j).
2. according to claim 1 pair of adjusting control valve, it is characterized in that, described large valve body (2) is the large valve body (2) of slot type structure, the circumferential side wall of described large valve body (2) is sealed described the first liquid entering hole (c), and the diapire of described large valve body (2) seals described liquid outlet (e).
3. according to claim 1 pair of adjusting control valve is characterized in that, described control spool (4) is tapered end with an end of described secondary liquid outlet (j) butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476432 CN202852030U (en) | 2012-09-14 | 2012-09-14 | Dual-regulating control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476432 CN202852030U (en) | 2012-09-14 | 2012-09-14 | Dual-regulating control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202852030U true CN202852030U (en) | 2013-04-03 |
Family
ID=47983235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220476432 Expired - Fee Related CN202852030U (en) | 2012-09-14 | 2012-09-14 | Dual-regulating control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202852030U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114271A (en) * | 2018-09-11 | 2019-01-01 | 浙江盾安智控科技股份有限公司 | dynamic flow control valve |
-
2012
- 2012-09-14 CN CN 201220476432 patent/CN202852030U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114271A (en) * | 2018-09-11 | 2019-01-01 | 浙江盾安智控科技股份有限公司 | dynamic flow control valve |
| CN109114271B (en) * | 2018-09-11 | 2023-12-22 | 浙江迪艾智控科技股份有限公司 | Dynamic flow control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20160914 |