CN101776109A - Oil-gas separation exhaust used for pneumatic control system of transformer substation - Google Patents
Oil-gas separation exhaust used for pneumatic control system of transformer substation Download PDFInfo
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- CN101776109A CN101776109A CN200910156690A CN200910156690A CN101776109A CN 101776109 A CN101776109 A CN 101776109A CN 200910156690 A CN200910156690 A CN 200910156690A CN 200910156690 A CN200910156690 A CN 200910156690A CN 101776109 A CN101776109 A CN 101776109A
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- valve body
- cavity
- oil
- piston rod
- hydraulic pump
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Abstract
The invention relates to an oil-gas separation exhaust used for a pneumatic control system of a transformer substation, which is characterized by comprising a valve body (1) in which a cavity body (3) is arranged, wherein the cavity body (3) is connected with the inlet end of a hydraulic pump by a pipeline, the upper part of the valve body (1) is provided with an opening (2) communicated with the cavity body (3), a valve ball (4) is arranged in the cavity body (3), and the density of the valve ball (4) is smaller than the oil-liquid density of the hydraulic pump; and a piston rod (5) which can move along the cavity body (3) up and down is also arranged in the valve body (1), the upper part of the piston rod (5) is connected with the opening (2) of the valve body (1) by a sealing retainer ring (6) in a sealing way, the lower part of the piston rod (5) is provided with a stop part (51), and a vent hole (52) is also arranged on the piston rod (5) and can communicate the cavity body (3) and the outside of the valve body only when the piston rod (5) moves downwards until the vent hole (52) is positioned inside the cavity body. Compared with the prior art, the invention can separate oil and gas apart automatically, prevents the gas from entering a booster cavity of the hydraulic pump, ensures the normal operation of the hydraulic pump and avoids the failure of the pneumatic control system of the transformer substation.
Description
Technical field
The present invention relates to electric substation pneumatic control field, particularly relate to a kind of oil-gas separation exhaust that is used for pneumatic control system of transformer substation.
Background technique
The circuit switch system that domestic large-scale substation adopts Siemens to provide usually because the voltage of electric substation is very high, is in security consideration, and its circuit is opened or closed and adopts atmospheric control to control.The required air pressure of atmospheric control is then provided by reciprocating hydraulic pump, so reciprocating hydraulic pump is the power source of large-scale substation atmospheric control, and the reciprocating hydraulic pump proper functioning is to guarantee the reliable key point of whole atmospheric control.
At present, oil hydraulic pump is when work in the atmospheric control, and little air enters the oil hydraulic pump entrance point or oil hydraulic pump moving element self produces gas, and gas can not in time be discharged, in case enter the oil hydraulic pump booster cavity, the pressure and the flow that will cause oil hydraulic pump to provide do not reach designing requirement.Then can't ensure the power requirement that the large-scale substation atmospheric control is required, cause the atmospheric control can't proper functioning.If then there is potential safety hazard in the artificial gas of discharging, it is very necessary therefore to design a kind of oil-gas separation exhaust that is applied to large-scale substation atmospheric control oil hydraulic pump entrance point.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of new oil-gas separation exhaust that can be used for pneumatic control system of transformer substation effectively, reliably at above-mentioned prior art, the gas that this oil-gas separation exhaust can enter pneumatic control system of transformer substation oil hydraulic pump entrance point is in time discharged, and can also reach oil gas simultaneously and separate purpose automatically.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: this is used for the oil-gas separation exhaust of pneumatic control system of transformer substation, it is characterized in that: comprise
Establish the valve body of cavity in one, this valve body top is provided with the opening that is communicated with cavity, is provided with valve ball in the cavity of this valve body, and the density of this valve ball is less than the fluid density of pneumatic control system of transformer substation oil hydraulic pump; Also be provided with a piston rod that can move up and down along described cavity in the described valve body, the top of this piston rod and the opening of valve body are tightly connected by Sealing shield ring, the bottom of this piston rod has a blocking part that is arranged in the described cavity, and also be provided with a vent on the described piston rod, this vent only can with described cavity and valve body is extraneous when described piston rod is displaced downwardly to this vent and is positioned at described inside cavity be communicated with;
One pipeline is connected between the oil hydraulic pump entrance point of the cavity of described body and pneumatic control system of transformer substation, be used for will logical described body cavity be communicated with the oil hydraulic pump entrance point of pneumatic control system of transformer substation.
In the middle of the top of described piston rod opening slotted eye up is set, this vent is arranged on the sidewall of this slotted eye.
Described piston rod is provided with the projection that can keep out in the valve body openings position at the downside position of described vent.
Described valve body is outside equipped with outer casing.
Described valve body lower portion is provided with valve seat.
Compared with prior art, the invention has the advantages that: adopt oil-gas separation exhaust of the present invention, when the pneumatic control system of transformer substation hydraulic pump works, after gas enters the oil hydraulic pump entrance point, import in the valve body, and in valve body, earlier oil gas is separated automatically through pipeline, prevent that gas from entering in the oil hydraulic pump booster cavity, guarantee the oil hydraulic pump proper functioning, avoided the inefficacy of pneumatic control system of transformer substation, have good economic benefit.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Structural representation when Fig. 2 is communicated with cavity and the valve body external world for vent of the present invention;
Structural representation when Fig. 3 closes for vent of the present invention;
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1～oil-gas separation exhaust that is used for pneumatic control system of transformer substation shown in Figure 3, it comprises the valve body 1 of establishing cavity 3 in one, this valve body 1 top is provided with the opening 2 that is communicated with cavity 3, be provided with valve ball 4 in the cavity 3 of this valve body 1, the density of this valve ball 4 is less than the fluid density of pneumatic control system of transformer substation oil hydraulic pump; Also be provided with a piston rod 5 that can move up and down along described cavity 3 in the described valve body 1, the opening 2 of the top of this piston rod 5 and valve body 1 is tightly connected by Sealing shield ring 6, the bottom of this piston rod 5 has a blocking part 51 that is arranged in the described cavity 3, and opening slotted eye 53 up is set in the middle of described piston rod 5 tops, have vent 52 on the sidewall of this slotted eye 53, this vent 52 only is displaced downwardly at described piston rod 5 and can the described cavity 3 and the valve body external world be communicated with by described slotted eye 53 when this vent 52 is positioned at described cavity 3 inside; Piston rod 5 is provided with the projection 54 that can keep out in valve body openings 2 positions at the downside position of described vent 52; Valve body 1 is outside equipped with outer casing 8; Valve body 1 bottom is provided with valve seat 9; Pipeline 7 is connected between the oil hydraulic pump entrance point 10 of the cavity 3 of described body 1 and pneumatic control system of transformer substation, be used for will logical described body 1 cavity 3 be communicated with the oil hydraulic pump entrance point 10 of pneumatic control system of transformer substation.Oil-gas separation exhaust integral arrangement of the present invention flushes with the fluid case of oil hydraulic pump in the top of oil hydraulic pump, thereby can guarantee the fluid case equipressure of oil-gas separation exhaust of the present invention and oil hydraulic pump.
When the oil hydraulic pump proper functioning of pneumatic control system of transformer substation, gas and hydraulic oil enter in the valve body by pipeline 7, gas is on the upper strata, hydraulic oil is in lower floor, referring to shown in Figure 2, when the hydraulic oil liquid level is positioned at the A point in the cavity 3 of valve body, valve ball 4 come-ups prop up the blocking part 51 of piston rod 5, and the vent 52 on the piston rod 5 also is in the inside of cavity, and at this moment, the air on upper strata can flow into slotted eye 53 by vent 52 in the cavity, and then expulsion valve is external enters in the outer casing 8, at this moment, whole valve body is in open mode, therefore can reach the effect that good oil gas separates and discharge gas automatically.
Hydraulic oil liquid level in cavity 3 continues to raise, referring to shown in Figure 3, valve ball 4 continues come-up promotion piston rod 5 and moves up, when hydraulic oil arrival B point, the vent 52 on the piston rod 5 is pushed to the opening of valve body 1, no longer is positioned at the inside of cavity 3, at this moment, vent 52 is fully closed, and whole valve body 1 is in closed condition, and valve body no longer externally carries out exhaust.
When gas continued to enter in the cavity 3 of valve body by pipeline 7, the hydraulic oil liquid level moved downward from the B point, and at this moment valve ball 4 sinks, piston rod 5 also slowly moves down, vent 52 on the piston rod 5 is slowly opened, and this moment, whole valve body was in open mode again, externally exhaust.
When above-mentioned oil-gas separation exhaust is installed, the residing B point of above-mentioned hydraulic oil liquid level best a little less than with the upper limit liquid level of the fluid case of oil hydraulic pump, and the bottom limit level of the best fluid case a little more than oil hydraulic pump of the residing A point of above-mentioned hydraulic oil liquid level.Like this, can guarantee better that the air pressure of body cavity body is identical with the fluid case of oil hydraulic pump.
Claims (5)
1. an oil-gas separation exhaust that is used for pneumatic control system of transformer substation is characterized in that: comprise
Establish the valve body (1) of cavity (3) in one, this valve body (1) top is provided with the opening (2) that is communicated with cavity (3), is provided with valve ball (4) in the cavity (3) of this valve body (1), and the density of this valve ball (4) is less than the fluid density of pneumatic control system of transformer substation oil hydraulic pump; Also be provided with a piston rod (5) that can move up and down along described cavity (3) in the described valve body (1), the opening (2) of top of this piston rod (5) and valve body (1) is tightly connected by Sealing shield ring (6), the bottom of this piston rod (5) has a blocking part (51) that is arranged in the described cavity (3), and also be provided with a vent (52) on the described piston rod (5), this vent (52) only is displaced downwardly to this vent (52) at described piston rod (5) and the described cavity (3) and the valve body external world can be communicated with when being positioned at described inside cavity;
One pipeline (7) is connected between the oil hydraulic pump entrance point of the cavity (3) of described body (1) and pneumatic control system of transformer substation, be used for will logical described body (1) cavity (3) be communicated with the oil hydraulic pump entrance point of pneumatic control system of transformer substation.
2. oil-gas separation exhaust according to claim 1 is characterized in that: in the middle of the top of described piston rod (5) opening slotted eye (53) up is set, this vent (52) is arranged on the sidewall of this slotted eye (53).
3. oil-gas separation exhaust according to claim 1 and 2 is characterized in that: described piston rod (5) is provided with the projection that can keep out in valve body openings (2) position at the downside position of described vent (52).
4. oil-gas separation exhaust according to claim 1 and 2 is characterized in that: described valve body (1) is outside equipped with outer casing (8).
5. oil-gas separation exhaust according to claim 1 and 2 is characterized in that: described valve body (1) bottom is provided with valve seat (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910156690A CN101776109A (en) | 2009-12-29 | 2009-12-29 | Oil-gas separation exhaust used for pneumatic control system of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910156690A CN101776109A (en) | 2009-12-29 | 2009-12-29 | Oil-gas separation exhaust used for pneumatic control system of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101776109A true CN101776109A (en) | 2010-07-14 |
Family
ID=42512661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910156690A Pending CN101776109A (en) | 2009-12-29 | 2009-12-29 | Oil-gas separation exhaust used for pneumatic control system of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101776109A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452401A (en) * | 2021-02-02 | 2021-03-09 | 季华实验室 | Crusher for glove box |
| CN112594166A (en) * | 2020-12-08 | 2021-04-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust assembly of compressor and compressor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051698U (en) * | 1989-05-22 | 1990-01-24 | 于洪远 | Automatic exhaust valve |
| CN2660110Y (en) * | 2003-12-05 | 2004-12-01 | 戴义明 | Automatic choke exhauster |
-
2009
- 2009-12-29 CN CN200910156690A patent/CN101776109A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051698U (en) * | 1989-05-22 | 1990-01-24 | 于洪远 | Automatic exhaust valve |
| CN2660110Y (en) * | 2003-12-05 | 2004-12-01 | 戴义明 | Automatic choke exhauster |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594166A (en) * | 2020-12-08 | 2021-04-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust assembly of compressor and compressor |
| CN112594166B (en) * | 2020-12-08 | 2022-08-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Exhaust assembly of compressor and compressor |
| CN112452401A (en) * | 2021-02-02 | 2021-03-09 | 季华实验室 | Crusher for glove box |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100714 |