CN209458210U - The hydraulic commutation denoising device of natural gas compression equipment - Google Patents
The hydraulic commutation denoising device of natural gas compression equipment Download PDFInfo
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- CN209458210U CN209458210U CN201822259121.4U CN201822259121U CN209458210U CN 209458210 U CN209458210 U CN 209458210U CN 201822259121 U CN201822259121 U CN 201822259121U CN 209458210 U CN209458210 U CN 209458210U
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Abstract
A kind of hydraulic commutation denoising device of natural gas compression equipment, including one stage of compression cylinder, two-stage compression cylinder, three position four-way directional control valve, pair vane pump, pair vane pump includes No.1 pump, No. two pumps, and by same motor driven, one stage of compression cylinder, the logical hydraulic fluid port of two-stage compression cylinder passes through the first oil circuit, second oil circuit is connected with the working hole of three position four-way directional control valve, the upstream end of pair vane pump connects fuel tank, downstream is in parallel with three position four-way directional control valve oil inlet by main oil feed line, three position four-way directional control valve oil return opening connects fuel tank by oil return pipe, main oil feed line connects fuel tank by the first overflow valve, guide's hydraulic fluid port of first overflow valve is connected by third oil circuit with the oil inlet of automatic reciprocating valve, two working holes of automatic reciprocating valve pass through the first control oil circuit, second control oil circuit is controlled with two of three position four-way directional control valve respectively Liquefaction mouth is connected, and the oil return opening of automatic reciprocating valve connects oil return pipe by oil return circuit, and No. two pumps are connected by unloading overflow valve with fuel tank.
Description
Technical field
The utility model relates to a kind of commutation denoising device, in particular to the hydraulic commutation of a kind of natural gas compression equipment is dropped
It makes an uproar device.
Background technique
In the prior art, the hydraulic system of natural gas compression equipment is in commutation, since the hydraulic fluid port of reversing arrangement can moment
It opens and closes, the kinetic energy moment for causing the oil liquid in pipeline to flow is converted to extruding energy, increases pressure sharply, to generate
Hydraulic shock, hydraulic shock can make the equipment of hydraulic system that high vibration occur and generate huge noise, and equipment is long-term
High vibration can make the precision of connector loosening oil leak and instrument be affected, to influence the reliability of hydraulic system
And stability, it can be seen that, hydraulic shock can generate very big damage to hydraulic system.
Summary of the invention
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of hydraulic commutation of natural gas compression equipment
Denoising device can greatly reduce hydraulic shock, to reduce the vibration of equipment, reduce noise.
The technical solution of the utility model is: a kind of hydraulic commutation denoising device of natural gas compression equipment, including level-one
Compression cylinder, two-stage compression cylinder, three position four-way directional control valve, pair vane pump, the pair vane pump include No.1 pump, No. two pump,
No.1 pump, No. two pumps by same motor driven, the one stage of compression cylinder, two-stage compression cylinder a logical hydraulic fluid port pass through the first oil
Road is connected with the first working hole of three position four-way directional control valve, and the one stage of compression cylinder, another logical hydraulic fluid port of two-stage compression cylinder are logical
It crosses the second oil circuit to be connected with the second working hole of three position four-way directional control valve, the oil inlet of the three position four-way directional control valve passes through main fuel feeding
Pipeline is in parallel with the No.1 of pair vane pump pump, No. two pump downstreams, and the oil return opening of three position four-way directional control valve is connected by oil return pipe
Connected tank, No.1 pump, No. two upstream ends pumped connect fuel tank, and the main oil feed line passes through the first overflow valve of setting and fuel tank phase
Even, guide's hydraulic fluid port of first overflow valve is connected by third oil circuit with the oil inlet of an automatic reciprocating valve, described automatic past
First working hole of multiple valve is connected by the first control oil circuit with the first control port of three position four-way directional control valve, automatic reciprocating valve
The second working hole by second control oil circuit be connected with the second control port of three position four-way directional control valve, automatic reciprocating valve time
Hydraulic fluid port is connected by oil return circuit with oil return pipe, and the downstream of No. two pumps is connected by unloading overflow valve with fuel tank.
The main oil feed line is connected by a compensation oil circuit with the oil inlet of automatic reciprocating valve.
The compensation oil circuit is equipped with throttle valve.
The downstream of No.1 pump is equipped with the first check valve, the downstreams of No. two pumps by threeway respectively with main confession
Oil pipe line is connected with unloading overflow valve, and second one-way valve is arranged on the pipeline that the threeway is connected with main oil feed line.
The upstream end of first overflow valve is equipped with the first oil pressure gauge.
The upstream end of the unloading overflow valve is equipped with the second oil pressure gauge.
By adopting the above technical scheme: the No.1 pump, No. two upstream end connection fuel tanks pumped are by same motor driven, No.1
Pump, the downstream of No. two pumps are in parallel with the oil inlet of three position four-way directional control valve by main oil feed line, and three position four-way directional control valve is logical
The first working hole, the second working hole is crossed to be connected with two logical hydraulic fluid ports of one stage of compression cylinder, two-stage compression pipe respectively, pump No.1,
Simultaneously to one stage of compression cylinder, two-stage compression oil supply cylinder, the main oil feed line is arranged the first overflow valve and is connected with fuel tank No. two pumps,
Moreover, guide's hydraulic fluid port of the first overflow valve is connected with the oil inlet of automatic reciprocating valve, while the first working hole of automatic reciprocating valve
It is connected with the first control mouth of three position four-way directional control valve, makes control oil of the guide oil of the first overflow valve as automatic reciprocating valve,
When the pressure of guide oil reaches the commutation pressure of automatic reciprocating valve, three position four-way directional control valve is set to commutate, to push compression cylinder
Piston move reciprocatingly, gas is compressed；When three position four-way directional control valve commutation, the guide oil of the first overflow valve can wink
Between there is pressure drop, make the first overflow valve release, to control three position four-way directional control valve commutation, therefore avoid whole system
Hydraulic shock caused by being steeply risen in commutation process because of pressure, to avoid equipment that vibration and noise occurs.Under No. two pumps
You Duanyu unloading overflow valve is connected, and the outlet oil pressure power of downstream that the off-loads of No. two pumps are pumped by No.1 controls, and works as No.1
When the outlet oil pressure power of pump reaches the setting value of unloading overflow valve, the oil liquid of No. two pumps flows back to fuel tank by unloading overflow valve, real
Existing unloaded interior circulation makes No. two pumps not to compression oil supply cylinder, when the outlet oil pressure power of No.1 pump downstream is not up to off-load overflow
When the setting value of valve, not to No. two pump off-loads, fuel feeding is carried out to compression cylinder simultaneously by No.1 pump, No. two pumps.
Since the guide oil oil mass of the first overflow valve is very small, after the raising of system oil temperature, since hydraulic oil viscosity reduces,
Mobility enhancing, will lead to guide oil and leaks between spool and the gap of valve body, to avoid oil liquid leakage that four-way is caused to commutate
Valve is unable to normal commutation, therefore main oil feed line on compensation oil circuit by taking one compensation oil to be incorporated to the guide of the first overflow valve
In oil, the flow for staying the oil inlet to automatic reciprocating valve is increased, the hydraulic shock of system can be substantially reduced, reduces noise, again
It ensure that the reliability and stability of three position four-way directional control valve commutation.
Throttle valve is set on compensation oil circuit, it can the uninterrupted for manually adjusting compensation oil, it can be according to the reality of system
Border oil pressure condition controls compensation oil.
The first check valve is set in the downstream of No.1 pump, check valve is constantly in main oil feed line direction and shape is connected
State, can make No.1 pump it is stable by main oil feed line to No.1 compression cylinder, No. two compression oil supply cylinders；No. two pump downstream
The second one-way valve being arranged between threeway and main oil feed line makes the outlet oil pressure power of No.1 pump downstream be not up to off-load overflow
When the setting value of valve, second one-way valve is connected to main oil feed line, makes No. two pumps that can continue to be main oil feed line fuel feeding, when
When the outlet oil pressure power of No.1 pump downstream reaches the setting value of unloading overflow valve, the truncation of the first check valve makes No. two pumps can only
Pass through unloading overflow valve off-load.
First oil pressure gauge of the upstream end of the first overflow valve can monitor the pressure of guide oil, thus according to guide at any time
The pressure size of oil adjusts the oil mass size of compensation oil by adjusting the throttle valve of compensation oil circuit.
Second oil pressure gauge of the upstream end of unloading overflow valve can monitor the off-load situation of No. two pumps, to monitor No.1
Pump, No. two fuel feeding situations pumped to main oil feed line.
The utility model is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of the utility model.
In attached drawing, 1 is one stage of compression cylinder, and 2 be two-stage compression cylinder, and 3 be three position four-way directional control valve, and 4 pump for No.1, and 5 be two
Number pump, 6 be fuel tank, and 7 be automatic reciprocating valve, and 8 be unloading overflow valve, and 9 be throttle valve, and 11 be the first check valve, and 21 is single for second
To valve, 81 be the second oil pressure gauge, and a is the first oil circuit, and b is the second oil circuit, and c is main oil feed line, and c1 is the first overflow valve, and c2 is
Guide's hydraulic fluid port, c3 are the second oil pressure gauge, and d is oil return pipe, and e is third oil circuit, and f is the first control oil circuit, and g is the second control oil
Road, h are oil return circuit, and k is compensation oil circuit.
Specific embodiment
Referring to Fig. 1, a kind of embodiment of the hydraulic commutation denoising device of natural gas compression equipment, including one stage of compression cylinder 1,
Two-stage compression cylinder 2, three position four-way directional control valve 3, pair vane pump, the pair vane pump include that No.1 pumps 4, No. two pumps 5, No.1
For 4, No. two pumps 5 of pump by same motor driven, the upstream end that the No.1 pumps 4, No. two pumps 5 connects fuel tank 6, and No.1 pumps 4, No. two pumps
5 downstream is in parallel with the oil inlet of three position four-way directional control valve 3 by main oil feed line c, the first work of three position four-way directional control valve 3
Make mouth to be connected by the first oil circuit a with a logical hydraulic fluid port of one stage of compression cylinder 1, two-stage compression cylinder 2, the one stage of compression cylinder 1, two
Another logical hydraulic fluid port of grade compression cylinder 2 is connected by the second oil circuit b with the second working hole of three position four-way directional control valve 3, and No.1 is made
Pump 4, two pump 5 to one stage of compression cylinder 1,2 fuel feeding of two-stage compression cylinder.The main oil feed line c passes through the first overflow valve c1 of setting
It is connected with fuel tank 6, guide's hydraulic fluid port c2 of the first overflow valve c1 passes through the oil inlet phase of third oil circuit e and automatic reciprocating valve 7
Even, the first control oil that the first working hole of the automatic reciprocating valve 7 passes through the first control oil circuit f and three position four-way directional control valve 3
Mouth is connected, the second control port that the second working hole of automatic reciprocating valve 7 passes through the second control oil circuit g and three position four-way directional control valve
It is connected, when the pressure of guide oil reaches the commutation pressure that automatic reciprocating valve 7 is set, the commutation of automatic reciprocating valve 7 is made to push three
Position and four-way reversing valve 3 commutates, and reaches through the guide oil of the first overflow valve c1 and controls the mesh of the commutation of three position four-way directional control valve 3
, so that the piston of one stage of compression cylinder 1, two-stage compression cylinder 2 be pushed to move reciprocatingly, natural gas is compressed, 3-position 4-way
The oil return opening of reversal valve 3 is connected to fuel tank 6 further through oil return pipe d, and the oil return opening of automatic reciprocating valve 7 by oil return circuit h and returns
Oil pipe d is connected, and forms the circuit of hydraulic commutation.Main oil feed line c also pass through a compensation oil circuit k take out one compensation oil with it is automatic
The oil inlet of reciprocable valve 7 is connected, and merges compensation oil with the guide oil of the first overflow valve c1, increases its oil mass, make 3-position 4-way
The commutation of reversal valve 3 is more stable, compensates and is additionally provided with a throttle valve 9 on oil circuit k, is equipped with by the upstream end of the first overflow valve c1
First oil pressure gauge c3, can monitor the pressure of guide oil, according to the pressure size of guide oil, can manually adjust compensation oil circuit k
On throttle valve 9 adjust the size for compensating oily oil mass.The downstream of the No.1 pump 4 is equipped with the first check valve 11, makes No.1
Pump 4 lasting can carry out fuel feeding by main oil feed line；It is described No. two pump downstreams by threeway respectively with main oil feed line c
It is connected with unloading overflow valve 8, second one-way valve 21 is set on the pipeline that the threeway is connected with main oil feed line c, when No.1 pumps 4
Outlet oil pressure power when reaching the setting value of unloading overflow valve 8, second one-way valve 21 is truncated, and the oil liquid of No. two pumps 5 passes through off-load
Overflow valve 8 flows back to fuel tank 6, realizes circulation in unloaded, makes No. two pumps 5 not to compression oil supply cylinder, when No.1 pumps the outlet of 4 downstreams
When oil pressure is not up to the setting value of unloading overflow valve 8, second one-way valve 21 is connected to main oil feed line c, by No.1 pump 4, two
Number pump 5 simultaneously to compression cylinder carry out fuel feeding.Second oil pressure gauge 81 of the upstream end of unloading overflow valve 8 can monitor No. two pumps 5
Off-load situation, to monitor the fuel feeding situation that No.1 pumps 4, No. two pumps, 5 couples of main oil feed line c.
By above structure it is found that in the utility model, when three position four-way directional control valve 3 commutates, the elder generation of the first overflow valve c1
Moment can occur pressure drop in Oil Guide, make the first overflow valve c1 release, to control the commutation of three position four-way directional control valve 3, therefore just keep away
Hydraulic shock caused by whole system steeply rises in commutation process because of pressure is exempted from, to avoid equipment that vibration occurs and makes an uproar
Sound.Since the guide oil oil mass of the first overflow valve c1 is very small, after the raising of system oil temperature, since hydraulic oil viscosity reduces, stream
Dynamic property enhancing, will lead to guide oil and leaks between spool and the gap of valve body, to avoid oil liquid leakage that 3-position 4-way is caused to change
It is unable to normal commutation to valve 3, therefore by taking one compensation oil to be incorporated to the first overflow valve on the compensation oil circuit of main oil feed line c
In the guide oil of c1, the flow for staying the oil inlet to automatic reciprocating valve 7 is increased, the hydraulic shock of system can be substantially reduced, dropped
Low noise in turn ensures the reliability and stability of three position four-way directional control valve commutation, also has certain energy-efficient effect.
In compressor assembly, since pressure can be gradually risen by low during natural gas compressing, corresponding system oil pressure
Also high flow rate oil supply can be needed when compression initial stage, that is, low-pressure from low to high, in order to improve the capacity of compression cylinder, and
With pressure rise, fuel supply flow rate needs to reduce, in case therefore motor overload is equipped with unloading overflow valve in the utility model
8, it can be by the pressure unloading of adjusting unloading overflow valve 8, to realize the adjusting to the fuel delivery of compression cylinder, to realize to whole
The adjusting of a compressor air-discharging amount.
Claims (6)
1. a kind of hydraulic commutation denoising device of natural gas compression equipment, including one stage of compression cylinder (1), two-stage compression cylinder (2), three
Position and four-way reversing valve (3), pair vane pump, the pair vane pump include No.1 pump (4), No. two pumps (5), and No.1 pumps (4), two
Number pump (5) by same motor driven, the one stage of compression cylinder (1), two-stage compression cylinder (2) a logical hydraulic fluid port pass through the first oil
Road (a) is connected with (3) first working hole of three position four-way directional control valve, the one stage of compression cylinder (1), two-stage compression cylinder (2) it is another
A logical hydraulic fluid port passes through the second oil circuit (b) and is connected with (3) second working hole of three position four-way directional control valve, the three position four-way directional control valve
(3) oil inlet is in parallel with the No.1 of pair vane pump pump (1), No. two pump (2) downstreams by main oil feed line (c), and three
The oil return opening of four-way reversing valve (3) is by oil return pipe (d) connection fuel tank (6), and No.1 pumps (1), the upstream end of No. two pumps (2) connects
Fuel tank (6), it is characterised in that: the main oil feed line (c) is connected by the way that the first overflow valve (c1) is arranged with fuel tank (6), described
Guide's hydraulic fluid port (c2) of first overflow valve (c1) is connected by third oil circuit (e) with the oil inlet of an automatic reciprocating valve (7), described
The first control port that first working hole of automatic reciprocating valve (7) passes through the first control oil circuit (f) and three position four-way directional control valve (3)
It is connected, the second control that the second working hole of automatic reciprocating valve (7) passes through the second control oil circuit (g) and three position four-way directional control valve (3)
Liquefaction mouth is connected, and the oil return opening of automatic reciprocating valve (7) is connected by oil return circuit (h) with oil return pipe (d), No. two pumps (2)
Downstream be connected with fuel tank (6) by unloading overflow valve (8).
2. the hydraulic commutation denoising device of natural gas compression equipment according to claim 1, it is characterised in that: the main confession
Oil pipe line (a) is connected by compensation oil circuit (k) with the oil inlet of automatic reciprocating valve (7).
3. the hydraulic commutation denoising device of natural gas compression equipment according to claim 2, it is characterised in that: the compensation
Oil circuit (k) is equipped with throttle valve (9).
4. the hydraulic commutation denoising device of natural gas compression equipment according to claim 1, it is characterised in that: the No.1
Pump (1) downstream be equipped with the first check valve (11), it is described No. two pump (2) downstreams by threeway respectively with main oil feed line
(a) it is connected with unloading overflow valve (8), second one-way valve (21) is set on the pipeline that the threeway is connected with main oil feed line (a).
5. the hydraulic commutation denoising device of natural gas compression equipment according to claim 1, it is characterised in that: described first
The upstream end of overflow valve (c1) is equipped with the first oil pressure gauge (c3).
6. the hydraulic commutation denoising device of natural gas compression equipment according to claim 1, it is characterised in that: the off-load
The upstream end of overflow valve (8) is equipped with the second oil pressure gauge (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259121.4U CN209458210U (en) | 2018-12-30 | 2018-12-30 | The hydraulic commutation denoising device of natural gas compression equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259121.4U CN209458210U (en) | 2018-12-30 | 2018-12-30 | The hydraulic commutation denoising device of natural gas compression equipment |
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| CN209458210U true CN209458210U (en) | 2019-10-01 |
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| CN201822259121.4U Active CN209458210U (en) | 2018-12-30 | 2018-12-30 | The hydraulic commutation denoising device of natural gas compression equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873093A (en) * | 2019-11-21 | 2020-03-10 | 杰瑞石油天然气工程有限公司 | Integral hydraulic pressure station |
-
2018
- 2018-12-30 CN CN201822259121.4U patent/CN209458210U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873093A (en) * | 2019-11-21 | 2020-03-10 | 杰瑞石油天然气工程有限公司 | Integral hydraulic pressure station |
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