CN202082626U - Commanding device - Google Patents
Commanding device Download PDFInfo
- Publication number
- CN202082626U CN202082626U CN2011201965102U CN201120196510U CN202082626U CN 202082626 U CN202082626 U CN 202082626U CN 2011201965102 U CN2011201965102 U CN 2011201965102U CN 201120196510 U CN201120196510 U CN 201120196510U CN 202082626 U CN202082626 U CN 202082626U
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- China
- Prior art keywords
- pressure
- valve
- spring
- housing
- pressure housing
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- Expired - Fee Related
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Abstract
The utility model discloses a commanding device which comprises a first pressure housing, a second pressure housing and a spring sleeve which are sequentially arranged from bottom to top, wherein a first membrane is arranged between the first pressure housing and the second pressure housing, a second membrane is arranged between the second pressure housing and the spring sleeve, a pressure stabilizer and a first valve mechanism are arranged in the first pressure housing, a second valve mechanism is arranged in the second pressure housing, and a spring mechanism is arranged in the spring sleeve. The commanding device has a novel structure and strong practicability, and can be applied in pressure regulators at various models.
Description
Technical field
The utility model relates to the gas burning system field, particularly a kind of pilot valve that is used for large scale industry user's combustion gas voltage-regulating system.
Background technique
In the prior art, pressure governor is widespread usage in the combustion gas voltage-regulating system, and the major function of pilot valve is in order to increase the receptance of pressure governor.Generally there is following defective in existing pilot valve: operating noise is big, is unsuitable for being applied in to the strict especially operating mode of criteria for noise requirement.
Summary of the invention
The purpose of this utility model provides a kind of pilot valve, and novel structure is practical, can be used for the pressure governor of various models.
The technical solution of the utility model is: a kind of pilot valve, comprise first pressure housing, second pressure housing and the spring housing from bottom to top arranged successively, be provided with first epithelium between described first pressure housing and second pressure housing, be provided with second epithelium between second pressure housing and the spring housing; Be provided with the voltage stabilizer and first valve mechanism in described first pressure housing; Be provided with second valve mechanism in described second pressure housing; Be provided with spring mechanism in the described spring housing.
The utility model can be done following improvement, and described voltage stabilizer is positioned at the below of first valve mechanism, and, be provided with baffler between the two.
Spring mechanism described in the utility model top is provided with the locking mechanism that can adjust spring pressure.
The utility model can also be done following improvement, and described first valve mechanism comprises the one-level spool that is used for to the first epithelium application of force, first valve rod that is connected as a single entity with the one-level spool and the first valve guide pin bushing that is set in one-level spool outside; Be set with first pressure spring on first valve rod, the two all is located in the receiving cavity that is provided with in the described first valve guide pin bushing.
Second valve mechanism described in the utility model comprises secondary spool, second valve rod that links to each other with the secondary spool that is used for to the second epithelium application of force and the second valve guide pin bushing that is set in the second valve rod outside; Be respectively equipped with spool pressure spring and valve rod pressure spring in the described secondary spool and second valve rod.
The beneficial effects of the utility model are:
A kind of pilot valve described in the utility model can reduce pressure medium by the structure of himself, and novel structure is widely used, and can be used for the pressure governor of various models.In addition, the utility model also is provided with silencer specially, is specially adapted to for the strict especially operating mode of criteria for noise requirement.Fluid air flow is in passing through the process of valve body, thereby silencer utilizes the absorption of sonic reflection and soundproof material that noise is reduced greatly.
Description of drawings
Fig. 1 is the utility model embodiment's a pilot valve erection drawing;
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment of the present utility model as shown in Figure 1 and Figure 2, a kind of pilot valve, comprise first pressure housing 1, second pressure housing 2 and the spring housing 3 from bottom to top arranged successively, be provided with between first epithelium, 4, the second pressure housings 2 and the spring housing 3 between first pressure housing 1 and second pressure housing 2 and be provided with second epithelium 5; Be provided with the voltage stabilizer 6 and first valve mechanism in first pressure housing 1; Be provided with second valve mechanism in second pressure housing 2; Be provided with spring mechanism in the spring housing 3.
In the present embodiment, voltage stabilizer 6 is positioned at the below of first valve mechanism, and, be provided with baffler 7 between the two.Baffler 7 adopts foam metal.The spring mechanism top is provided with the locking mechanism that can adjust spring pressure.
First valve mechanism comprises the one-level spool 8 that is used for to first epithelium, 4 application of forces, first valve rod 9 that is connected as a single entity with one-level spool 8 and the first valve guide pin bushing 10 that is set in one-level spool 8 outsides; Be set with first pressure spring 11 on first valve rod 9, the two all is located in the receiving cavity that is provided with in the described first valve guide pin bushing 10.Second valve mechanism comprises the secondary spool 12 that is used for to second epithelium, 5 application of forces, second valve rod 13 that links to each other with secondary spool 12 and is set in the second valve guide pin bushing 14 of second valve rod, 13 outsides; Be respectively equipped with spool pressure spring 15 and valve rod pressure spring 16 in the described secondary spool 12 and second valve rod 13.
Spring mechanism comprises pressure spring 17, is located at the spring bearer plate 18 and the spring seat 19 at pressure spring two ends about in the of 17 respectively.The locking mechanism that spring mechanism top is provided with comprises the adjustment screw 20 that is used to hold out against spring bearer plate 18, is set in lock nut 21 and the locking nut 22 adjusted on the screw 20, and locking nut 22 is fixed on lock nut 21.The outside of adjusting screw 20 also is provided with protective cap 23.First epithelium 4 clamps by first pressing plate 24 and the one-level spool 8 that is positioned at its top; Second epithelium 5 clamps by second pressing plate 25 and second valve rod 13 that is positioned at its top, and the top that second epithelium, 5 bottoms are provided with bolt 26, the second valve rods 13 holds out against on this bolt 26.Valve rod pressure spring 16 holds out against on secondary spool 12, the two ends of spool pressure spring 15 hold out against respectively on the retaining plate 27 that is provided with in the inwall of secondary spool 12 and second pressure housing, 2 bottoms, the center of retaining plate 27 is provided with through hole, and retaining plate 27 is provided with check ring 28.First pressing plate 24 lock onto first epithelium, 4 tops by nut 29, is provided with the gap between this nut 29 and the retaining plate 27.
This pilot valve generally is to cooperate pressure governor to use together, constitutes voltage-regulating system.Set-point and some performance variable can be determined by pilot valve.It can directly sense downstream pressure, continuously changes the on-load pressure that is loaded on the pressure governor then, promptly changes the control chamber pressure of pressure governor, reaches balance up to system.The major function of pilot valve is in order to increase the receptance of pressure governor.If can sense the variation of downstream pressure, again it is changed into the bigger changing value of on-load pressure, use the pressure amplification quantity that pilot valve produced to be called " pressure net income increase ".Say that further pilot valve can amplify tens times to the influence of pressure governor master epithelium with variation in pressure, pressure governor will increase for the respective degrees (receptance) that traffic demand changes like this.In addition, pressure divergence also can reduce widely, thereby reduces its influence to pressure governor validity and flow.
The above embodiments only are preferred embodiment of the present utility model, can not limit interest field of the present utility model with this, and therefore, the equivalent variations according to the utility model claim is done still belongs to the scope that the utility model is contained.
Claims (5)
1. pilot valve, it is characterized in that comprising first pressure housing (1), second pressure housing (2) and the spring housing (3) from bottom to top arranged successively, be provided with first epithelium (4) between described first pressure housing (1) and second pressure housing (2), be provided with second epithelium (5) between second pressure housing (2) and the spring housing (3); Be provided with the voltage stabilizer (6) and first valve mechanism in described first pressure housing (1); Be provided with second valve mechanism in described second pressure housing (2); Described spring housing is provided with spring mechanism in (3).
2. a kind of pilot valve according to claim 1 is characterized in that described voltage stabilizer (6) is positioned at the below of first valve mechanism, and, be provided with baffler (7) between the two.
3. a kind of pilot valve according to claim 2 is characterized in that described spring mechanism top is provided with the locking mechanism that can adjust spring pressure.
4. a kind of pilot valve according to claim 3 is characterized in that described first valve mechanism comprises the one-level spool (8) that is used for to first epithelium (4) application of force, first valve rod (9) that is connected as a single entity with one-level spool (8) and be set in the first outside valve guide pin bushing (10) of one-level spool (8); Be set with first pressure spring (11) on first valve rod (9), the two all is located in the receiving cavity that is provided with in the described first valve guide pin bushing (10).
5. a kind of pilot valve according to claim 4 is characterized in that described second valve mechanism comprises secondary spool (12), second valve rod (13) that links to each other with secondary spool (12) that is used for to second epithelium (5) application of force and is set in the second outside valve guide pin bushing (14) of second valve rod (13); Be respectively equipped with spool pressure spring (15) and valve rod pressure spring (16) in described secondary spool (12) and second valve rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201965102U CN202082626U (en) | 2011-06-10 | 2011-06-10 | Commanding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201965102U CN202082626U (en) | 2011-06-10 | 2011-06-10 | Commanding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202082626U true CN202082626U (en) | 2011-12-21 |
Family
ID=45343254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201965102U Expired - Fee Related CN202082626U (en) | 2011-06-10 | 2011-06-10 | Commanding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202082626U (en) |
-
2011
- 2011-06-10 CN CN2011201965102U patent/CN202082626U/en not_active Expired - Fee Related
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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: 20111221 Termination date: 20200610 |