CN207122559U - Constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device - Google Patents
Constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device Download PDFInfo
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- CN207122559U CN207122559U CN201720933979.7U CN201720933979U CN207122559U CN 207122559 U CN207122559 U CN 207122559U CN 201720933979 U CN201720933979 U CN 201720933979U CN 207122559 U CN207122559 U CN 207122559U
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Abstract
It the utility model is related to a kind of constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device, concrete structure is, inlet shutoff valve, constant speed grease pump, outlet shutoff valve, check-valves I, overflow valve and check-valves II are sequentially connected, constant speed grease pump connection motor;Pass through stop valve I connection pressure gauges I before table between outlet shutoff valve and check-valves I;Pass through stop valve II connection pressure gauges II before table between overflow valve and check-valves II;Electric control valve is provided between check-valves I and overflow valve.Only increase compensates oil supply system to the utility model outside hydraulic coupler transmission device, under the conditions of all internal ducts of former speed-regulating hydraulic coupler transmission device, parts are not changed, it finally both can guarantee that all speed-regulating functions of the former hydraulic coupler transmission device under motor power frequency state were constant, and also met coupler transmission device speedup and the normal demand of transmission moment of torsion under motor frequency change speed governing operating mode.
Description
Technical field
A kind of speed-regulating hydraulic coupler transmission device is the utility model is related to, more particularly to one kind is used for speed-adjusting type hydraulic
The constant speed pump oil-supplementing system of coupler transmission device, it is mainly used in the startup electric pump group of heat pump or air-cooled unit.
Background technology
As country or even international community are for the raising of " energy-saving and emission-reduction ", the consciousness of " carbon emission amount " and attention rate, liquid
Power coupler transmission device because its regulator drive efficiency with rotating speed reduce and decline, overall efficiency is relatively low, plus fluid power
Coupling device belongs to slip loss type arrangements for speed regulation.For this problem, Frequency Conversion Modification is carried out to motor, utilizes variable-frequency motor
Speed governing is carried out, and only plays speedup in electric machine speed regulation operating mode hydraulic coupler transmission device and transmits moment of torsion, that is, is made
Obtain the operating mode that coupling device remains full of oil in motor variable-frequency speed-regulating（I.e.：Hydraulic coupler transmission device=step-up gear+peace
Holotype coupling device）, so as to reach energy-conservation purpose.
But in the motor power frequency state of the non-speed governing of motor, hydraulic coupler transmission device stills need to retain the one of original speed governing
Function is cut, for power plant to transforming demand as speed-regulating hydraulic coupler transmission device, can be found i.e. to former coupling device
It is motionless or few dynamic inside transmission device, it is extremely important how to find out cost-effective, simple and effective best solution.
Due to this speed-regulating hydraulic coupler transmission device lubricating oil system and working oil system complex, if transforming
In, do not change all internal ducts of former speed-regulating hydraulic coupler transmission device, parts, and do not change whole oil system and match somebody with somebody
Put and function and the security setting such as interlock protection, be the technical barrier that this area is thirsted for solving always.
Utility model content
The utility model is directed to above-mentioned problems of the prior art, there is provided one kind is used for variable speed fluid coupling and passed
The constant speed pump oil-supplementing system of dynamic device, both can guarantee that all speed governing of the former hydraulic coupler transmission device under motor power frequency state
Function is constant, also meets coupler transmission device speedup and the normal demand of transmission moment of torsion under motor frequency change speed governing operating mode.
The technical solution of the utility model is as follows：
For the constant speed pump oil-supplementing system of speed-regulating hydraulic coupler transmission device, it is made up of, has lubricating oil compensation oil circuit
Body structure is that inlet shutoff valve, constant speed grease pump, outlet shutoff valve, check-valves I, overflow valve and check-valves II are sequentially connected,
Constant speed grease pump connects motor;Pass through stop valve I connection pressure gauges I before table between outlet shutoff valve and check-valves I;Overflow
Pass through stop valve II connection pressure gauges II before table between stream valve and check-valves II;Electric adjustable is provided between check-valves I and overflow valve
Save valve.
Described constant speed grease pump is connected by inlet shutoff valve, suction line with coupling device fuel tank, overflow valve, electric adjustable
Section valve is connected by oil return pipe with coupling device fuel tank.
For the constant speed pump oil-supplementing system of speed-regulating hydraulic coupler transmission device, oil circuit and working oil are compensated by lubricating oil
Oil circuit composition is compensated, described lubricating oil compensation oil circuit is：Inlet shutoff valve, constant speed grease pump, outlet shutoff valve, check-valves
I, overflow valve and check-valves II are sequentially connected, constant speed grease pump connection motor;Lead between outlet shutoff valve and check-valves I
Cross stop valve I connection pressure gauges I before table；Pass through stop valve II connection pressure gauges II before table between overflow valve and check-valves II;Only
Return and electric control valve is provided between valve I and overflow valve；
Described working oil compensates oil circuit：Stop valve III, pressure gauge III connect successively before sequence valve, check-valves III, table
Connect, check-valves III is connected with two two electric change valves；
Described sequence valve is connected to before check-valves II and table between stop valve II.
Described constant speed grease pump is connected by inlet shutoff valve, suction line with coupling device fuel tank, overflow valve, electric adjustable
Section valve and two two electric change valves are connected by oil return pipe with coupling device fuel tank.
The utility model has the advantages of as follows：
Only increase compensates oil supply system to the utility model outside hydraulic coupler transmission device, is not changing former speed-regulating type
Under the conditions of all internal ducts of hydraulic coupler transmission device, parts, the stoste under motor power frequency state finally both can guarantee that
All speed-regulating functions of power coupler transmission device are constant, also meet that coupler transmission device increases under motor frequency change speed governing operating mode
Speed and the normal demand for transmitting moment of torsion.And it is applied in the actual transformation of heat power station feedwater pump frequency converting speed regulating.
The inlet and outlet speed-regulating hydraulic coupler transmission device of frequency control motor is transform as transformation object using driving machine,
Modification scheme does not change whole in line with not changing all internal ducts of former speed-regulating hydraulic coupler transmission device, parts
Function and the security setting such as individual oil system configuration and interlock protection, ensure the fine quality of original equipment, save improvement cost, it is ensured that
This high-speed drive equipment operation stationarity of coupler transmission device, the principle of safety and reliability, that is, being satisfied with can be
Torque output in the case of frequency control, while retain its original function that can maintain coupler transmission device.
Brief description of the drawings
Fig. 1 is that the utility model constant speed pump compensates oil supply system structural representation.
Fig. 2-4 is the utility model constant speed pump compensation oil supply system example structure schematic diagram.
Fig. 5 is the utility model water supply pump motor frequency and compensation Oil pump electrical machinery frequency curve chart.
Embodiment
Embodiment 1
As shown in figure 3, the hydraulic coupler transmission device applied to outlet regulating, described constant speed pump compensation oil supply system
It is made up of lubricating oil compensation oil circuit, concrete structure is inlet shutoff valve 2, constant speed grease pump 3, outlet shutoff valve 5, check-valves
I601, overflow valve 9 and check-valves II602 are sequentially connected, and constant speed grease pump 3 connects motor 4;Outlet shutoff valve 5 and only
Return valve I between pass through stop valve I701 connection pressure gauges I801 before table;Pass through stop valve before table between overflow valve 9 and check-valves II
II702 connection pressure gauges II802;Electric control valve 10 is provided between check-valves I and overflow valve.
Described constant speed grease pump 3 is connected by inlet shutoff valve 2, suction line with coupling device fuel tank 1, overflow valve 9, electricity
Dynamic regulating valve 10 is connected by oil return pipe with coupling device fuel tank 1；Described check-valves II602 and the lube oil cooler of coupling device
Connection.
Embodiment 2
As shown in Figure 1, 2, the hydraulic coupler transmission device applied to inlet and outlet regulation, described constant speed pump compensation fuel feeding
System compensates oil circuit by lubricating oil and working oil compensation oil circuit forms, and described lubricating oil compensation oil circuit is：Inlet shutoff valve 2,
Constant speed grease pump 3, outlet shutoff valve 5, check-valves I601, overflow valve 9 and check-valves II602 are sequentially connected, constant speed lubricating oil
Pump 3 connects motor 4;Pass through stop valve I701 connection pressure gauges I801 before table between outlet shutoff valve 5 and check-valves I;Overflow
Pass through stop valve II702 connection pressure gauges II802 before table between stream valve 9 and check-valves II;Set between check-valves I and overflow valve
There is electric control valve 10；Described working oil compensates oil circuit：Stop valve III14, pressure before sequence valve 11, check-valves III12, table
Power Table III 15 is sequentially connected, and check-valves III is connected with two two electric change valves 13；Described sequence valve is connected to non-return
Before valve II and table between stop valve II.
Described constant speed grease pump 3 is connected by inlet shutoff valve 2, suction line with coupling device fuel tank 1, overflow valve 9, electricity
Dynamic regulating valve 10 and two two electric change valves 13 are connected by oil return pipe with coupling device fuel tank；Described check-valves II602
It is connected with the lube oil cooler 18 of coupling device；Described check-valves III and the Working oil cooler 17 of coupling device connect.
Embodiment 3
As shown in figure 4, for needing compensation oil system need to increase a set of standby import by the using and the reserved mode fuel feeding
Stop valve, constant speed grease pump and outlet shutoff valve, and lubricating oil is compensated into fuel feeding R and accesses former coupling device lubricating oil system, will
Working oil compensation fuel feeding W accesses former coupler rotor oil system, and other structures are the same as embodiment 2.
Addition constant speed pump compensates oil supply system：
Compensation principle：When unit is in motor variable-frequency speed-regulating operating mode, the oil feed pump inside former coupler transmission device（Profit
Lubricating oil, working oil oil feed pump）Change with the rotation speed change of motor, when rotating speed is in low regime, the oil feed pump inside original is difficult
To meet the needs of system is to pressure and flow, now by compensate oil supply system keep coupler transmission device working oil and
The stabilization of lubricating oil system pressure and flow, and it is consistent so as to keeping with the pressure parameter of original coupler transmission device setting
The performance of former coupler transmission device, when the gradual speedup of main motor rotating speed（In high velocity）, inside former coupler transmission device
Oil feed pump（Lubricating oil, work oil feed pump）Make it that flow, pressure are continuously increased in system as the rotating speed of motor increases, so that not
Compensation system fuel feeding is needed, oil pump unnecessary fuel feeding is now compensated and fuel tank is returned to by overflow valve and electric control valve.
When the flow with main motor rotation speed change original oil inside offering pump, pressure change, system pressure can also become
Change, the pressure of initialization system keeps former coupler transmission device rated value, and is lubricated by live coupling device by main-piping pressure control
System switch DCS system monitors in real time, when system pressure is more than setting value, controls electric control valve to make by pressure switch signal
The aperture increase of its valve, increase vent flow make system pressure be down to rated pressure；When system pressure is less than setting value, pass through pressure
Power switching signal control electric control valve reduces the aperture of its valve, and reducing vent flow makes system pressure rise to rated value, so as to
Keep the dynamic equilibrium of system pressure.
Working oil compensation oil circuit is the coupler transmission device for inlet and outlet regulation,（Outlet regulating coupling device transmission dress
Put and do not need, so omitting this oil supply loop）, pass through sequence valve（Flow divider valve）Charge oil pressure is set to force down to coupling device fuel feeding
Nominal parameter, when main motor is in slow-speed of revolution operating mode, work oil pump causes pressure flow to be difficult to meet coupling device because rotating speed is low
Demand, now by working oil compensate oil circuit fuel feeding so as to ensure coupler rotor oil oil inlet quantity, due to motor variable-frequency speed-regulating
Operating mode coupling device should be at working oil and is full of operating mode all the time（I.e. scoop tube is in 100% position）, when main motor is in high speed conditions,
Original work oil pump feed had met the fuel feeding of working oil already, and now back work oil system continues fuel feeding, will certainly make coupling
The axial force and Cover For A Turbine stress of pressure rise increase pump, turbine rotor in device working chamber are transported so as to influence the safety of coupling device
OK, so when system pressure is higher than setting value, magnetic valve is controlled to open emptying by pressure switch, in order to avoid coupling device fuel feeding pressure
It is too high.
Constant speed grease pump installation site ensures the suction inlet of pump below coupling device oil tank liquid level as far as possible.
The transformation of speed governing hydraulic coupler transmission device is using the excellent of compensation oil supply system in motor-driven feed-water pump set Frequency Conversion Modification
Point：
From structure, any destruction is not carried out to original coupling device parts, and keep inner components, pipeline etc. not to do
Any change, only addition compensates oil supply system in vitro.To original working oil, lubricating oil system function and its integrality after transformation
There is no any negative effect, while the original interlock protection of coupling device and setting do not reduce.
Keep the function of the external fuel feeding of former coupling device：
In addition to addition compensation oil supply system in vitro, other lubricating systems keep constant, continue to by original system to electricity
Machine, feed pump, fore pump and coupling device step-up drive equipment fuel feeding itself, and keep the starting and stopping machine of former auxiliary lubrication pump to supply
Standby functions when oil and main oil pump accident.
Claims (4)
1. the constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device, it is characterised in that oil circuit is compensated by lubricating oil
Form, concrete structure is, inlet shutoff valve, constant speed grease pump, outlet shutoff valve, check-valves I, overflow valve and check-valves II according to
Secondary connection, constant speed grease pump connection motor;Pressed between outlet shutoff valve and check-valves I by stop valve I connections before table
Power Table I;Pass through stop valve II connection pressure gauges II before table between overflow valve and check-valves II;Set between check-valves I and overflow valve
There is electric control valve.
2. the constant speed pump oil-supplementing system according to claim 1 for speed-regulating hydraulic coupler transmission device, its feature
It is that described constant speed grease pump is connected by inlet shutoff valve, suction line with coupling device fuel tank, overflow valve, electric control valve
Connected by oil return pipe with coupling device fuel tank.
3. the constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device, it is characterised in that oil circuit is compensated by lubricating oil
And working oil compensation oil circuit composition, described lubricating oil compensation oil circuit are：Inlet shutoff valve, constant speed grease pump, outlet cut-off
Valve, check-valves I, overflow valve and check-valves II are sequentially connected, constant speed grease pump connection motor;Outlet shutoff valve and non-return
Pass through stop valve I connection pressure gauges I before table between valve I;Pressed between overflow valve and check-valves II by stop valve II connections before table
Power Table II;Electric control valve is provided between check-valves I and overflow valve；
Described working oil compensates oil circuit：Stop valve III, pressure gauge III are sequentially connected before sequence valve, check-valves III, table,
Check-valves III is connected with two two electric change valves；
Described sequence valve is connected to before check-valves II and table between stop valve II.
4. the constant speed pump oil-supplementing system according to claim 3 for speed-regulating hydraulic coupler transmission device, its feature
It is that described constant speed grease pump is connected by inlet shutoff valve, suction line with coupling device fuel tank, overflow valve, electric control valve
And two two electric change valves are connected by oil return pipe with coupling device fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720933979.7U CN207122559U (en) | 2017-07-30 | 2017-07-30 | Constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720933979.7U CN207122559U (en) | 2017-07-30 | 2017-07-30 | Constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207122559U true CN207122559U (en) | 2018-03-20 |
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ID=61613270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720933979.7U Active CN207122559U (en) | 2017-07-30 | 2017-07-30 | Constant speed pump oil-supplementing system for speed-regulating hydraulic coupler transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207122559U (en) |
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2017
- 2017-07-30 CN CN201720933979.7U patent/CN207122559U/en active Active
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