CN205207809U - Guide controls pipeline stationary flow adjusting device of branch - Google Patents
Guide controls pipeline stationary flow adjusting device of branch Download PDFInfo
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- CN205207809U CN205207809U CN201520876974.6U CN201520876974U CN205207809U CN 205207809 U CN205207809 U CN 205207809U CN 201520876974 U CN201520876974 U CN 201520876974U CN 205207809 U CN205207809 U CN 205207809U
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- main valve
- pilot
- valve plug
- main
- pressure
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Abstract
The utility model discloses a guide controls pipeline stationary flow adjusting device of branch, including main valve and pilot valve, the main valve includes the main valve body, be located main valve body lower part the main valve import and with the main valve core cavity of resorption, main valve body internally mounted has main valve core, main valve core is linked together through main valve core damping hole and main valve core cavity of resorption, and main valve core links to each other with the main valve core epicoele the intermediate position department of main valve core epicoele is provided with the main valve spring, and the one end of main valve spring is fixed on main valve core, and the other end is on the upper portion of main valve core epicoele, the pilot valve includes the pilot valve valve body and sets up the adjustment handle in the pilot valve valve body, adjustment handle is provided with the pilot valve spring along axial end, is provided with guide's case in the pilot valve valve body, and the inner chamber of pilot valve valve body is linked together with the main valve core cavity of resorption through the buffering hole, and guide's case passes through the pressure medium that piston and the pressure collecting who introduces through pressure leading -out hole order and acts on mutually, and the the device balance adjustment is with oil pipe way internal pressure.
Description
Technical field
The utility model relates to pressure piping device in mechanical field, is specifically related to a kind of pipeline current stabilization controlling device.
Background technique
In existing pipeline, oil filling equipment needs to keep pressure, flow isoparametric stable or controlled in a certain scope, to ensure the safety of equipment and normal work under many circumstances.But the pressure of a lot of equipment easily causes pipeline impaired very greatly, thus causes the security incidents such as pipeline breaking, the pressure of pipeline is not carried out to the device of balance adjustment in prior art.Therefore in the urgent need to designing a kind of equipment that can carry out balance adjustment to pipeline pressure.
Because the working pressure of fuel loading system is unstable, usually there is pipeline overvoltage decompression in oil filling equipment, and pipeline pressure sharply raises the water hammer reducing and cause.These phenomenons and be unfavorable for annotate equipment maintenance, easily cause equipment failure.
The utility model leading type pressure regulator valve is exactly for keeping oiling pipeline internal pressure ensure the safety of equipment and normally work and develop.
Summary of the invention
For the deficiencies in the prior art, propose a kind of pilot control branch line current stabilization controlling device keeping oiling pipeline internal pressure to ensure the safety of equipment.The technical solution of the utility model is as follows: a kind of pilot control branch line current stabilization controlling device, comprise main valve and pilot valve, described main valve comprises main valve body, the main valve inlet being positioned at main valve body bottom and the main valve plug cavity of resorption be coaxially connected with main valve inlet, described main valve body inside is provided with main valve plug, described main valve plug is connected with main valve plug cavity of resorption by main valve plug damping hole, main valve plug is connected with main valve plug epicoele, main spool spring is provided with along the longitudinal in the middle position of described main valve plug epicoele, one end of main spool spring is fixed on main valve plug, the other end is on the top of main valve plug epicoele, main valve plug epicoele and main valve plug are connected with Main valve outlet, and described Main valve outlet is connected with the return tube section in pipe-line system,
Described pilot valve comprises pilot valve body and is arranged at the regulating handle in pilot valve body, described regulating handle is axially held and is provided with pilot valve spring, pilot valve is provided with in pilot valve body, the inner chamber of pilot valve body is connected with main valve plug cavity of resorption by cushion hole, pilot valve is acted on mutually by the pressure medium of piston with the pressure acquisition point introduced by tracting pressuring hole, and described tracting pressuring hole is connected with the oil filling pipe section in pipe-line system.
Further, described pilot valve have employed slide-valve structure.
Further, the closedown main spool spring power of described main valve plug damping hole (4) adds that the pressure that main valve plug epicoele produces realizes, and opens by regulating the pressure reduction before and after main valve plug to realize.
Further, the pressure pilot valve spring (10) that the closedown of described tracting pressuring hole (14) produces by pilot valve spring realizes, it is realize after leaning on the pressure medium of tracting pressuring hole (14) to overcome the spring force of pilot valve spring that tracting pressuring hole (14) is opened, and regulating handle is for adjusting the spring force of pilot valve spring.
Further, when pressure regulator valve is stable release time, the power acted on main valve plug meets relation;
p
1F
1＝p
bF
b+F
H
P
1-main valve plug cavity of resorption oil pressure, F
1-p
1to the active area of main valve plug, p
b-main valve plug epicoele oil pressure
F
b-p
bto the active area of main valve plug, F
h-main spool spring power.
Advantage of the present utility model and beneficial effect as follows:
(the pressure self-balancing formula main valve plug structure that (1) is designed, makes pressure regulator valve open and shut characteristic good, namely pressure regulator valve from be opened to standard-sized sheet and from standard-sized sheet to close process, system pressure change little.
(2) adopt the structure of pilot valve control bound, by telecontrol impulse mouth, can realize long-range pressure regulation, its flow wide accommodation, pressure controling precision is high, uses easy to operate
Accompanying drawing explanation
Fig. 1 is the utility model leading type pressure regulator valve structural upright schematic diagram;
Fig. 2 is the utility model leading type pressure regulator valve structure sectional view;
Fig. 3 is the wiring diagram of the utility model leading type pressure regulator valve technology.
1-main valve inlet, 2-main valve body, 3-main valve plug cavity of resorption, 4-main valve plug damping hole, 5-main valve plug, 6-main spool spring, 7-main valve plug epicoele, 8-regulating handle, 9-pilot valve body, 10-pilot valve spring, 11-pod apertures, 12-pilot valve, 13-cushion hole, 14-tracting pressuring hole, 15-Main valve outlet;
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1,1. structure composition and working principle
Leading type pressure regulator valve comprises by main valve and pilot valve two large divisions, as shown in Figure 1.Be made up of main valve body, main valve plug, main spool spring, main valve plug damping hole, guide valve blocks, pilot valve, pilot valve spring, regulating handle, cushion hole, tracting pressuring hole and pod apertures etc., as shown in Figure 2.
Leading type pressure regulator valve structure:
Main valve have employed slide-valve structure, mainly comprise main valve body, main valve plug, main spool spring and main valve plug damping hole etc., main valve plug is designed with damping hole, primary spools cavity of resorption is communicated with main valve plug epicoele, mineralization pressure self-balance structure, makes the impact of the stressed pressure medium change of not carried of spool.Its closedown mainly realizes by main spool spring, opens by regulating the pressure reduction before and after main valve plug to realize.
Pilot valve also uses slide-valve structure, mainly comprises guide valve blocks, pilot valve, pilot valve spring, regulating handle, cushion hole, tracting pressuring hole and pod apertures etc.Pilot valve is connected with main valve plug epicoele by cushion hole, and the pressure medium of the pressure acquisition point that tracting pressuring hole is introduced acts on the piston of pilot valve.Its closedown mainly realizes by pilot valve spring, and unlatching realizes after leaning on the pressure medium of tracting pressuring hole to overcome the spring force of pilot valve spring, and regulating handle for adjusting the spring force of pilot valve spring, thus changes the cracking pressure of pilot valve.After pilot valve is opened, the pressure medium of main valve plug epicoele flows out from pod apertures through cushion hole, thus changes the pressure of main valve plug epicoele, reaches the pressure reduction changing main valve plug upper and lower cavity.
Working principle:
The feature of leading type pressure regulator valve utilizes the medium differential pressure at main valve plug upper and lower two ends that main valve plug is moved, and its working principle is as follows:
A. close
During work, pressure medium enters main valve plug cavity of resorption from main valve inlet, damping hole on main valve plug enters main valve plug epicoele, then pilot valve ante-chamber is entered by cushion hole, main valve plug cavity of resorption active area is slightly less than main valve plug epicoele active area, the power that spool is closed is that main spool spring power adds that the active force that main valve plug upper cavity pressure produces, the power that spool is opened are the active forces that under main valve plug, cavity pressure produces.When cracking pressure lower than pilot valve of the pressure of pressure acquisition point, pilot valve is in closed condition, and the medium of main valve plug upper and lower cavity does not flow, then main valve plug cavity of resorption is identical with the pressure medium of epicoele.Now, the power that main valve plug is closed is greater than the power making it open, and main valve plug is pressed on valve seat, and main valve is in closed condition, and the pressure medium in pipeline is not released.
p
1F
1＜p
bF
b+F
H
P
1-main valve plug cavity of resorption oil pressure
F
1-p
1to the active area of main valve plug
P
b-main valve plug epicoele oil pressure
F
b-p
bto the active area of main valve plug
F
h-main spool spring power
B. open
When cracking pressure higher than pilot valve of the pressure of pressure acquisition point, pilot valve is opened, and pressure medium is just flowed out by pod apertures from main valve plug epicoele through cushion hole.Simultaneously, the pressure medium of main valve plug cavity of resorption through damping hole in the process of epicoele, due to the effect of damping hole, produce the pressure loss, make the pressure of primary spools epicoele be less than the pressure of cavity of resorption, when upper cavity pressure drops to a certain degree, unlatching active force on main valve plug is greater than the power making it open, and main valve plug rises, and main valve is opened and is pressed on valve seat, main valve is in closed condition, and the pressure medium in pipeline is released.Thus the pressure medium in reduction pipeline.
When pressure regulator valve is stable release time, the power acted on main valve plug is balance;
p
1F
1＝p
bF
b+F
H
P
1-main valve plug cavity of resorption oil pressure
F
1-p
1to the active area of main valve plug
P
b-main valve plug epicoele oil pressure
F
b-p
bto the active area of main valve plug
F
h-main spool spring power
When system oil pressure reduces, first pilot valve turns down, and again makes p
1=p
b, thus main valve flow-off also turns down immediately.
When cracking pressure lower than pilot valve of the pressure of pressure acquisition point, pilot valve is closed, and the medium of main valve plug upper and lower cavity does not flow, then main valve plug cavity of resorption is identical with the pressure medium of epicoele, main valve closedown.
2. advanced development, test and use
Made model machine, model machine carries out function and reliability trial.Test use shows, model machine good operating stability, and reliable operation is simple to operate.The wiring diagram of this technology is illustrated in fig. 3 shown below:
Pilot valve body there is tracting pressuring hole D be connected with pressure acquisition point conduit; Conduction hole C is connected with oil pump inlet; Cushion hole is had to be connected with main valve plug before guide valve core.The flow of oiling pipeline can be regulated with this.
3. technological innovation
This technological innovation mainly contains:
(1) the pressure self-balancing formula main valve plug structure designed, makes pressure regulator valve open and shut characteristic good, namely pressure regulator valve from be opened to standard-sized sheet and from standard-sized sheet to close process, system pressure change little.
(2) adopt the structure of pilot valve control bound, by telecontrol impulse mouth, can realize long-range pressure regulation, its flow wide accommodation, pressure controling precision is high, uses easy to operate
These embodiments are interpreted as only being not used in restriction protection domain of the present utility model for illustration of the utility model above.After the content of reading record of the present utility model, technician can make various changes or modifications the utility model, and these equivalence changes and modification fall into the utility model claim limited range equally.
Claims (5)
1. a pilot control branch line current stabilization controlling device, comprise main valve and pilot valve, it is characterized in that: described main valve comprises main valve body (2), the main valve inlet (1) being positioned at main valve body (2) bottom and the main valve plug cavity of resorption (3) be coaxially connected with main valve inlet (1), described main valve body (2) inside is provided with main valve plug (5), described main valve plug (5) is connected with main valve plug cavity of resorption (3) by main valve plug damping hole (4), main valve plug (5) is connected with main valve plug epicoele (7), main spool spring (6) is provided with along the longitudinal in the middle position of described main valve plug epicoele (7), one end of main spool spring (6) is fixed on main valve plug (5), the other end is on the top of main valve plug epicoele (7), main valve plug epicoele (7) and main valve plug (5) are connected with Main valve outlet (15), and described Main valve outlet (15) is connected with the return tube section in pipe-line system,
Described pilot valve comprises pilot valve body (9) and is arranged at the regulating handle (8) in pilot valve body (9), described regulating handle (8) is axially held and is provided with pilot valve spring (10), pilot valve (11) is provided with in pilot valve body (9), the inner chamber of pilot valve body (9) is connected with main valve plug cavity of resorption (3) by cushion hole (13), pilot valve (11) is acted on mutually by the pressure medium of piston with the pressure acquisition point introduced by tracting pressuring hole (14), described tracting pressuring hole (14) is connected with the oil filling pipe section in pipe-line system.
2. a kind of pilot control branch line current stabilization controlling device according to claim 1, is characterized in that: described pilot valve have employed slide-valve structure.
3. a kind of pilot control branch line current stabilization controlling device according to claim 1 and 2, it is characterized in that: the closedown main spool spring power of described main valve plug damping hole (4) adds that the pressure that main valve plug epicoele produces realizes, opening by regulating the pressure reduction before and after main valve plug to realize.
4. a kind of pilot control branch line current stabilization controlling device according to claim 1, it is characterized in that: the pressure that the closedown of described tracting pressuring hole (14) produces by pilot valve spring realizes, it is realize after leaning on the pressure medium of tracting pressuring hole (14) to overcome the spring force of pilot valve spring that tracting pressuring hole (14) is opened, and regulating handle is for adjusting the spring force of pilot valve spring.
5. a kind of pilot control branch line current stabilization controlling device according to claim 1, is characterized in that: when pressure regulator valve is stable release time, the power acted on main valve plug meets relation;
P
1f
1=p
bf
b+ F
h, p
1-main valve plug cavity of resorption oil pressure, F
1-p
1to the active area of main valve plug, p
b-main valve plug epicoele oil pressure, F
b-p
bto the active area of main valve plug, F
h-main spool spring power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876974.6U CN205207809U (en) | 2015-11-04 | 2015-11-04 | Guide controls pipeline stationary flow adjusting device of branch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876974.6U CN205207809U (en) | 2015-11-04 | 2015-11-04 | Guide controls pipeline stationary flow adjusting device of branch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207809U true CN205207809U (en) | 2016-05-04 |
Family
ID=55845527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520876974.6U Expired - Fee Related CN205207809U (en) | 2015-11-04 | 2015-11-04 | Guide controls pipeline stationary flow adjusting device of branch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207809U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605263A (en) * | 2015-11-04 | 2016-05-25 | 中国人民解放军后勤工程学院 | Pilot control branch pipeline flow stabilization regulation apparatus |
| CN111315991A (en) * | 2019-03-28 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
-
2015
- 2015-11-04 CN CN201520876974.6U patent/CN205207809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605263A (en) * | 2015-11-04 | 2016-05-25 | 中国人民解放军后勤工程学院 | Pilot control branch pipeline flow stabilization regulation apparatus |
| CN111315991A (en) * | 2019-03-28 | 2020-06-19 | 深圳市大疆创新科技有限公司 | Pump device and agricultural plant protection machine |
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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: 20160504 Termination date: 20171104 |