CN209386347U - Liquid circulation regulating device and system - Google Patents
Liquid circulation regulating device and system Download PDFInfo
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- CN209386347U CN209386347U CN201822201343.0U CN201822201343U CN209386347U CN 209386347 U CN209386347 U CN 209386347U CN 201822201343 U CN201822201343 U CN 201822201343U CN 209386347 U CN209386347 U CN 209386347U
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Abstract
This application involves a kind of liquid circulation regulating device and systems.Wherein, liquid circulation regulating device includes the first main road shut-off valve and electric control valve；The inlet of first main road shut-off valve is used to connect the outlet of liquid pump, the inlet of the liquid outlet connection electric control valve of the first main road shut-off valve by feed liquid pipeline.It further include the pressure-control valve for controlling the pressure of feed liquid pipeline；The liquid outlet of the inlet connection electric control valve of pressure-control valve, the liquid outlet of pressure-control valve are used to connect the entrance of liquid tank.Increase pressure-control valve after electric control valve, combine with the electric control valve of its upstream and adjust the accurate adjusting, it can be achieved that fluid pressure and flow to feed liquid pipeline, can overcome the disadvantages that former circulation line leans on merely the deficiency of electric control valve, improve debugging efficiency.
Description
Technical field
This application involves fuel system technical fields, more particularly to a kind of liquid circulation regulating device and system.
Background technique
During fuel system debugging, stokehold fuel system not yet puts into operation, and circulation return tubing road need to be arranged, and meets oil pump fortune
Capable minimum discharge requirement.When stokehold fuel system is debugged using fuel oil feed regulation and starting trouble, generally require by being recycled back to
Electric control valve on oil-piping realizes the oil pressure cntrol to fuel feeding main pipe, to guarantee the oil pressure requirement of respective system entry.
During Practical Project uses, inventor has found that at least there are the following problems in traditional technology: only by single
Electric control valve operation is difficult to realize accurate adjusting, and the pressure and flow of liquid often can not be up to standard simultaneously, gives field adjustable work
Make increase difficulty.
Utility model content
Based on this, it is necessary to aiming at the problem that traditional technology is difficult to accurately adjust the pressure and flow of liquid, provide one kind
Liquid circulation regulating device and system.
To achieve the goals above, on the one hand, the embodiment of the present application provides a kind of liquid circulation regulating device, including
One main road shut-off valve and electric control valve；The inlet of first main road shut-off valve is used to connect going out for liquid pump by feed liquid pipeline
Mouthful, the inlet of the liquid outlet connection electric control valve of the first main road shut-off valve；It further include the pressure for controlling feed liquid pipeline
Pressure-control valve.
The liquid outlet of the inlet connection electric control valve of pressure-control valve, the liquid outlet of pressure-control valve is for connecting liquid
The entrance of body tank.
It in one of the embodiments, further include bypass shut-off valve；The inlet for bypassing shut-off valve connects the first main road and closes
The inlet of disconnected valve, and liquid pump is connected by feed liquid pipeline；The liquid outlet of bypass shut-off valve is separately connected electric control valve
The inlet of liquid outlet and pressure-control valve.
It in one of the embodiments, further include the second main road shut-off valve；The liquid outlet of electric control valve is main by second
Road shut-off valve is separately connected the liquid outlet of bypass shut-off valve and the inlet of pressure-control valve.
It in one of the embodiments, further include third main road shut-off valve；The inlet of pressure-control valve passes through third master
Road shut-off valve is separately connected the liquid outlet of bypass shut-off valve and the liquid outlet of electric control valve.
Third main road shut-off valve is electronic shut-off valve in one of the embodiments,.
It in one of the embodiments, further include the 4th main road shut-off valve；The liquid outlet of pressure-control valve is main by the 4th
Road shut-off valve connects liquid tank.
Pressure-control valve is throttle valve or shut-off valve in one of the embodiments,.
On the other hand, the embodiment of the present application also provides a kind of liquid circulation regulating systems, comprising: liquid pump, liquid supply pipe
Road, liquid tank and such as above-mentioned liquid circulation regulating device；The outlet of the entrance connection liquid tank of liquid pump.
Liquid pump is oil pump in one of the embodiments,；Feed liquid pipeline is fuel feeding main pipe；Liquid tank is oil tank；Fuel feeding
The outlet of the oil inlet connection oil pump of main pipe；The oil outlet of fuel feeding main pipe is for being separately connected fuel system and boiler.
It in one of the embodiments, further include oil inlet shut-off valve；The oil outlet of fuel feeding main pipe is connected by oil inlet shut-off valve
Connect boiler.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
Liquid circulation regulating device includes the first main road shut-off valve and electric control valve；The inlet of first main road shut-off valve
For connecting the outlet of liquid pump, the feed liquor of the liquid outlet connection electric control valve of the first main road shut-off valve by feed liquid pipeline
Mouthful.It further include the pressure-control valve for controlling the pressure of feed liquid pipeline；The inlet of pressure-control valve connects electric control valve
Liquid outlet, the liquid outlet of pressure-control valve is used to connect the entrance of liquid tank.Increase pressure-control valve after electric control valve,
Combine with the electric control valve of its upstream and adjusts the accurate adjusting, it can be achieved that fluid pressure and flow to feed liquid pipeline, it can be more
The deficiency that former circulation line leans on merely electric control valve is mended, debugging efficiency is improved.
Detailed description of the invention
By being more particularly described for preferred embodiment of the present application shown in the drawings, the above and other mesh of the application
, feature and advantage will become more fully apparent.Identical appended drawing reference indicates identical part in all the attached drawings, and does not carve
Meaning draws attached drawing by actual size equal proportion scaling, it is preferred that emphasis is shows the purport of the application.
Fig. 1 is the structural schematic diagram of conventional recycle oil return line；
Fig. 2 is the first schematic diagram of liquid circulation regulating device in one embodiment；
Fig. 3 is the second schematic diagram of liquid circulation regulating device in one embodiment；
Fig. 4 is the third schematic diagram of liquid circulation regulating device in one embodiment；
Fig. 5 is the 4th schematic diagram of liquid circulation regulating device in one embodiment；
Fig. 6 is the 5th schematic diagram of liquid circulation regulating device in one embodiment；
Fig. 7 is the first schematic diagram of liquid circulation regulating system in one embodiment；
Fig. 8 is the second schematic diagram of liquid circulation regulating system in one embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to disclosure of this application.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " inlet ",
" liquid outlet ", " entrance " and " outlet " similar statement is for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
Thermal power plant fuel system is during oil pump is debugged, and because main boiler not yet starts, system need to be set without fuel oil user
Circulation return tubing road all the way is set, the minimum discharge requirement of oil pump operation is met.Fuel oil by circulation return tubing road, from fuel pump outlet
Fuel feeding main pipe flow back into inside oil tank, then oil pump is entered by oil tank oil outlet pipe, realizes the circulation of fuel medium.Such as Fig. 1
Shown, Fig. 1 is the structural schematic diagram of conventional recycle oil return line, and wherein device 1 is main road shut-off valve, and device 2 is motorized adjustment
Valve, device 3 are bypass shut-off valve, and device 6 is the oil pump outside circulation return tubing road, and device 7 is outside circulation return tubing road
Oil inlet shut-off valve.Circulation return tubing road is by one electric control valve of setting, to the pressure of flow and fuel feeding main pipe in pipe
It is controlled.Circulation return tubing road is set, solves the problems, such as that fuel system initial start stage oil pump recycles oil return.Do not considering machine
Under the premise of group and starting trouble oil, the control of motorized adjustment valve opening is depended merely on, can satisfy oil return stream during oil pump debugging
The control of amount.
Although electric control valve is able to satisfy the adjusting of the return flow on entire circulation return tubing road, used in Practical Project
In, other than controlling return flow, also need to control the pressure of pipeline sometimes.For example, when stokehold fuel system is
When fuel oil feed regulation, fuel feeding main-piping pressure fluctuates the influence to stokehold regulating valve in order to prevent, it usually needs by stokehold fuel system
Inlet pressure (i.e. fuel feeding main-piping pressure) is stablized near rated pressure, to realize the linear regulation of stokehold fuel regulator valve；
, can only be by the circulation oil return electric control valve because stokehold fuel system not yet puts into operation when being debugged to starting trouble, next pair
Fuel feeding main-piping pressure is controlled, and is allowed to meet the input pressure requirement of starting trouble.Facts proved that only leaning on single electric adjustable
Valve operation is saved, the accurate adjusting of oil mass and oil pressure is difficult to realize.For this purpose, the application provides a kind of liquid circulation regulating device, lead to
The pressure-control valve in the pressure of electric control valve added downstream control feed liquid pipeline is crossed, former electric control valve is effectively assisted, mentions
The high integrally-regulated precision of piping guarantees stokehold fuel system and starting trouble tune, it can be achieved that oil pressure in fuel feeding main pipe is stablized
Oil pressure requirement during examination.
In one embodiment, a kind of liquid circulation regulating device is provided, as shown in Fig. 2, Fig. 2 is liquid in one embodiment
First schematic diagram of body circulation regulating device, including the first main road shut-off valve and electric control valve；The shutdown of first main road
The inlet of valve is used to connect the outlet of liquid pump by feed liquid pipeline, and the liquid outlet of the first main road shut-off valve connects motorized adjustment
The inlet of valve；It further include the pressure-control valve for controlling the pressure of feed liquid pipeline.
The liquid outlet of the inlet connection electric control valve of pressure-control valve, the liquid outlet of pressure-control valve is for connecting liquid
The entrance of body tank.
Specifically, it includes being connected to following between the outlet of liquid pump and the entrance of liquid tank that liquid circulation, which adjusts equipment,
Endless tube road.The first main road shut-off valve, electric control valve and pressure-control valve are successively arranged on circulating line.First main road shut-off valve
Set on the upstream of circulating line, the outlet of liquid pump is connected by feed liquid pipeline, can be used for the conducting of control loop pipeline and is cut
It is disconnected, and then control liquid circulation.The inlet of electric control valve connects the liquid outlet of the first main road shut-off valve, liquid outlet connection pressure
The inlet of force control valve can be used for adjusting the inlet hydraulic in circulating line, maintain the pressure of feed liquid pipeline.Pressure-control valve
Set on the downstream of circulating line, liquid outlet connects the entrance of liquid tank, can be used for controlling the pressure of feed liquid pipeline；It should pay attention to
, pressure-control valve can be realized by a plurality of types of valves such as throttle valve or shut-off valve, be not particularly limited herein.Liquid
Cyclic process can include: liquid in liquid pump successively enters circulating line through outlet, feed liquid pipeline；First main road shut-off valve
It opens, liquid successively enters liquid tank through electric control valve, pressure-control valve；The outlet of liquid tank can connect entering for liquid pump
Mouthful, to realize the liquid circulation between liquid pump, liquid tank and liquid circulation regulating device.Meanwhile passing through motorized adjustment
The cooperation of valve and pressure-control valve can accurately adjust the pressure and flow of liquid in feed liquid pipeline.
It should be noted that the combined regulation of pressure-control valve and electric control valve, can overcome the disadvantages that former circulation line is simple
The deficiency being adjusted by electric control valve realizes the accurate pressure and flow for adjusting pipeline, improves working efficiency.Work as liquid pump
When debugging, electric control valve is half-open or partially opens.By adjusting the aperture of pressure-control valve, the pressure of feed liquid pipeline is controlled,
It is close to hydraulic needed for feed flow main pipe.Then electric control valve is adjusted again, so that hydraulic move closer to liquid supply pipe
Inlet hydraulic needed for road.After inlet hydraulic is met the requirements, the inlet valve of related system is opened, then by adjusting electric adjustable
Valve is saved, guarantees to maintain the pressure of feed liquid pipeline constant in the changes in flow rate of liquid circulation, to realize that satisfaction adjusts liquid pressure
The requirement of power and flow.
Regulating valve can be to go to change the control member of the technological parameters such as rate-of flow, pressure, temperature, liquid level by power operation
Part can be specifically electric control valve or manual modulation valve.Pressure-control valve can be for by changing throttling section or chock length
To control the control element of fluid flow.Liquid pump can be trandfer fluid or the machinery for making fluid pressurized；Specifically, can be used for defeated
The liquid such as water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal are sent, are not specifically limited herein.Liquid tank can be used for depositing
Fluid is stored up, specifically, such as the liquid such as water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal, do not do specific limit herein
System.
The embodiment of the present application may be applicable to while the accurate pipeline for adjusting fluid pressure and flow；Due to liquid medium
After pressure-control valve, pressure can be greatly reduced, and the pressure in pressure-control valve downstream is considered as when using the embodiment of the present application
It is required that.The downstream of electric control valve is arranged in pressure-control valve, since the front and back pressure reduction of pressure-control valve is more, to guarantee
Medium remaining energy overcomes downstream resistance after adjusting, and preferably pressure-control valve is arranged from the closer position of liquid tank.
The embodiment of the present application realizes that it combines adjusting, energy with the electric control valve of upstream by increasing pressure-control valve newly
The enough accurate pressure and flow for adjusting feed liquid pipeline facilitates scene operation debugging.Meanwhile in the pressure for being not required to control feed liquid pipeline
When, the back to the pressure of liquid medium can be adjusted by adjusting the aperture of pressure-control valve, it is ensured that into the pressure of liquid tank
In suitable range, inlet hydraulic can be effectively prevent excessive, caused pot liquid seethes.
In one embodiment, as shown in figure 3, Fig. 3 is the second signal of liquid circulation regulating device in one embodiment
Property structure chart, further include bypass shut-off valve；The inlet for bypassing shut-off valve connects the inlet of the first main road shut-off valve, and passes through
Feed liquid pipeline connects liquid pump；The liquid outlet of bypass shut-off valve is separately connected the liquid outlet and pressure-control valve of electric control valve
Inlet.
Specifically, in liquid circulation regulating device, it may include bypass shut-off valve.First main road shut-off valve and motorized adjustment
After valve series connection, bypass shut-off valve can be connected in parallel on the both ends of above-mentioned series pipe.That is, the inlet of bypass shut-off valve is also by feed flow
Pipeline connects the outlet of liquid pump, and liquid outlet connects the inlet of pressure-control valve.
It should be noted that electric control valve is set on the main road pipeline of circulating line, and circulating line can also be electronic
The both ends of regulating valve are provided with the bypass duct of bypass shut-off valve.The bypass shut-off valve at electric control valve both ends is set, it can
Condition is provided for the maintenance of electric control valve, improves the safety of liquid circulation regulating device.
In one embodiment, as shown in figure 4, Fig. 4 is the third signal of liquid circulation regulating device in one embodiment
Property structure chart, further includes the second main road shut-off valve；The liquid outlet of electric control valve is separately connected side by the second main road shut-off valve
The liquid outlet of road shut-off valve and the inlet of pressure-control valve.
Specifically, liquid circulation regulating device may also include be arranged between electric control valve and pressure-control valve
Two main road shut-off valves.That is, the first main road shut-off valve and the second main road shut-off valve are separately positioned on motorized adjustment on circulating line
The both ends of valve form concatenated main road pipeline；The feed liquor port of main road pipeline is used to connect the outlet of liquid pump, obtains liquid pump
The liquid of output, downstream pass sequentially through the entrance of pressure control pump, outlet end mouth connection liquid tank, the liquid that liquid pump is exported
It exports to liquid tank；Bypass shut-off valve is then connected in parallel on main road pipe ends.
It should be noted that main road shut-off valve is respectively set before and after electric control valve, event can occur in electric control valve
When barrier, isolation maintenance is realized.The type of first main road shut-off valve and the second main road shut-off valve can be to manually switch off valve or electronic pass
Disconnected valve.
In one embodiment, as shown in figure 5, Fig. 5 is the 4th signal of liquid circulation regulating device in one embodiment
Property structure chart, further includes third main road shut-off valve；The inlet of pressure-control valve is separately connected side by third main road shut-off valve
The liquid outlet of road shut-off valve and the liquid outlet of electric control valve.
Specifically, liquid circulation regulating device, before the inlet of pressure-control valve, also settable third main road closes
Disconnected valve.Third main road shut-off valve can be used for flowing of the stopping liquid between liquid tank and circulating line.Setting is controlled in pressure
Third main road shut-off valve before the inlet of valve, can be when overhauling or replacing pressure-control valve, and realization follows liquid
The truncation of the upstream of ring regulating device.
In one embodiment, as shown in figure 5, third main road shut-off valve is electronic shut-off valve.
Specifically, third main road shut-off valve can be to manually switch off valve or electronic shut-off valve.Using electronic shut-off valve conduct
Third main road shut-off valve, can ability liquid tank when being in an emergency, automatically cut off between liquid circulation regulating device and liquid tank
Liquid transmission, improve liquid circulation regulating device safety.
In one embodiment, as shown in fig. 6, Fig. 6 is the 5th signal of liquid circulation regulating device in one embodiment
Property structure chart, further includes the 4th main road shut-off valve；The liquid outlet of pressure-control valve connects liquid tank by the 4th main road shut-off valve.
Specifically, liquid circulation regulating device can also be set between the liquid outlet of pressure-control valve and the entrance of liquid tank
Set the 4th main road shut-off valve.4th main road shut-off valve can be used for flowing of the stopping liquid between liquid tank and circulating line,
When emergency occurs for liquid tank, the liquid cut off between liquid tank and liquid circulation regulating device in time flows, and improves safety
Property.Meanwhile the 4th main road shut-off valve can cooperate with third main road shut-off valve, realize isolation to pressure-control valve, be convenient for pressure
The maintenance or replacement of control valve.4th main road shut-off valve can be to manually switch off valve, can also be electronic shut-off valve.
In one embodiment, pressure-control valve is throttle valve or shut-off valve.
Specifically, throttle valve or shut-off valve can be selected in pressure-control valve；It should be noted that shut-off valve wants sealing
Ask higher, long-term throttling, which is washed away, can make shutdown valve seal impaired, influence the leakproofness of shut-off valve.
In one embodiment, pressure-control valve is throttle valve, and liquid pump is oil pump；Feed liquid pipeline is fuel feeding main pipe；Liquid
Body tank is oil tank.Liquid circulation regulating device includes circulation return tubing road；Circulation return tubing road passes through one motorized adjustment of setting
Valve, flow and fuel feeding main-piping pressure to piping control.Main road shut-off valve may include the first main road shut-off valve, the second master
Road shut-off valve, third main road shut-off valve and the 4th main road shut-off valve.
Isolation maintenance when to realize to electric control valve failure, the first main road being separately positioned on before and after electric control valve
Shut-off valve and the second main road shut-off valve can be to manually switch off valve；Meanwhile also settable bypass shut-off valve.At circulation return tubing road end
End (close to tank farm), respectively in fire wall, the 4th main road shut-off valve may be configured as manually switching off valve, outside fire wall, the
Three main road shut-off valves may be configured as electronic shut-off valve, realize the cutting of fuel oil when catching fire to tank farm.
Increase a throttle valve after electric control valve, adjusting is combined with the electric control valve of its upstream, guarantees to oil pressure
With the accurate adjusting of oil mass.When oil pump debugging, bypass shut-off valve, each main road shut-off valve of standard-sized sheet are closed.Electric control valve is half-open
Or it partially opens.By adjusting the aperture of throttle valve, the pressure of fuel feeding main pipe is controlled, stokehold fuel system or starting are close to
Oil pressure needed for boiler system entrance.Then the electric control valve of circulation oil return is adjusted again, so that oil pressure moves closer to
Input pressure needed for stokehold fuel system or starting trouble.After input pressure is met the requirements, stokehold fuel system is opened
The oil inlet shut-off valve of regulating valve or starting trouble, then by adjusting electric control valve, guarantee when recycling return flow variation, dimension
The pressure for holding fuel feeding main pipe is constant.To realize the requirement of oil pressure in control fuel feeding main pipe.
Throttle valve is arranged in the downstream of electric control valve, because before and after throttle valve, pressure reduction is more, to guarantee to be situated between after throttling
Matter remaining energy overcomes downstream resistance, and preferably throttle valve is arranged in from the closer position of oil tank.Specifically, it may be arranged at oil tank fire prevention
It electronic shut-off valve near dike and manually switches off between valve, on the one hand can be closer apart from oil tank, resistance is small；On the other hand when section
When flowing valve failure, maintenance replacement can be realized by closing the shut-off valve that it closes on upstream and downstream.
The embodiment of the present application realizes that joint is adjusted by newly-increased throttle valve and the electric control valve of its upstream, can not only
Play the role of stable stokehold fuel system entrance charge oil pressure, and can be when starting trouble is debugged, Precise Control of Oil pressure
And oil mass, the efficiency of live starting trouble debugging efforts is improved, scene operation debugging is facilitated.Meanwhile it is female being not required to control fuel feeding
When pipe pressure, by adjusting the aperture of throttle valve, the return pressure of fuel medium can adjust, it is ensured that the oil pressure into oil tank is closing
Suitable range effectively prevent fuel oil in the excessive caused tank of input pressure to seethe.
In one embodiment, a kind of liquid circulation regulating system is provided, as shown in fig. 7, Fig. 7 is liquid in one embodiment
First schematic diagram of body circulation regulating system, comprising: liquid pump, feed liquid pipeline, liquid tank and such as above-mentioned liquid
Recycle regulating device；The outlet of the entrance connection liquid tank of liquid pump.
Specifically, liquid circulation regulating system may include sequentially connected liquid pump, feed liquid pipeline, liquid circulation adjusting
Device and liquid tank；Also, the entrance of the outlet connection liquid pump of liquid tank, forms fluid circulation system.Liquid circulation tune
Regulating device can adjust the pressure and flow of liquid in piping within the system, and then realize the accurate tune to the liquid circulation of system
Section.Liquid circulation regulating system can be used for the circulation of the liquid such as water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal,
This does not do specific limitation.
In one embodiment, as shown in figure 8, Fig. 8 is the second signal of liquid circulation regulating system in one embodiment
Property structure chart, liquid pump is oil pump；Feed liquid pipeline is fuel feeding main pipe；Liquid tank is oil tank；The oil inlet of fuel feeding main pipe connects oil
The outlet of pump；The oil outlet of fuel feeding main pipe is for being separately connected fuel system and boiler.
Specifically, liquid circulation regulating system can recycle regulating system for fuel oil, it can be used for fuel system and boiler open
It is dynamic.Wherein, the quantity of oil pump can be configured according to actual motion demand, such as 2,3,5,6 etc., do not do have herein
Body limitation.Specifically, the first main road shut-off valve and the second main road shut-off valve can be device 1；Electric control valve is device 2, bypass
Shut-off valve is device 3；Third main road shut-off valve is electronic shut-off valve, such as device 4；4th main road shut-off valve is to manually switch off valve,
Such as device 5；Oil pump is device 6；Oil inlet shut-off valve for starting trouble is device 7；Section positioned at the downstream of electric control valve
Stream valve is device 8.
In one embodiment, as shown in figure 8, further including oil inlet shut-off valve；The oil outlet of fuel feeding main pipe is closed by oil inlet
Disconnected valve connects boiler.
Specifically, fuel oil circulation regulating system may also include be connected between the oil outlet and boiler of fuel feeding main pipe into
Oily shut-off valve.Oil inlet shut-off valve can be used for controlling the conducting or truncation for the fuel oil for leading to boiler.
The embodiment of the present application passes through the combined regulation of pressure-control valve and electric control valve, can overcome the disadvantages that primary liquid cyclic system
System leans on merely the deficiency of electric control valve, realizes the accurate pressure and flow for adjusting circulating liquid.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to the application range therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection model of the application
It encloses.Therefore, the scope of protection shall be subject to the appended claims by the application.
Claims (10)
1. a kind of liquid circulation regulating device, which is characterized in that including the first main road shut-off valve and electric control valve；
The inlet of the first main road shut-off valve is used to connect the outlet of liquid pump by feed liquid pipeline, and first main road closes
The liquid outlet of disconnected valve connects the inlet of the electric control valve；
It further include the pressure-control valve for controlling the pressure of the feed liquid pipeline；
The inlet of the pressure-control valve connects the liquid outlet of the electric control valve, and the liquid outlet of the pressure-control valve is used
In the entrance of connection liquid tank.
2. liquid circulation regulating device according to claim 1, which is characterized in that further include bypass shut-off valve；
The inlet of the bypass shut-off valve connects the inlet of the first main road shut-off valve, and is connected by the feed liquid pipeline
Connect the liquid pump；It is described bypass shut-off valve liquid outlet be separately connected the electric control valve liquid outlet and the pressure control
The inlet of valve processed.
3. liquid circulation regulating device according to claim 2, which is characterized in that further include the second main road shut-off valve；
The liquid outlet of the electric control valve is separately connected the liquid out of the bypass shut-off valve by the second main road shut-off valve
The inlet of mouth and the pressure-control valve.
4. liquid circulation regulating device according to claim 2, which is characterized in that further include third main road shut-off valve；
The inlet of the pressure-control valve is separately connected the liquid out of the bypass shut-off valve by the third main road shut-off valve
The liquid outlet of mouth and the electric control valve.
5. liquid circulation regulating device according to claim 4, which is characterized in that the third main road shut-off valve is electronic
Shut-off valve.
6. according to claim 1 to liquid circulation regulating device described in 5 any one, which is characterized in that further include the 4th main
Road shut-off valve；
The liquid outlet of the pressure-control valve connects the liquid tank by the 4th main road shut-off valve.
7. according to claim 1 to liquid circulation regulating device described in 5 any one, which is characterized in that the pressure control
Valve is throttle valve or shut-off valve.
8. a kind of liquid circulation regulating system characterized by comprising liquid pump, feed liquid pipeline, liquid tank and as right is wanted
Seek liquid circulation regulating device described in 1 to 7 any one；
The entrance of the liquid pump connects the outlet of the liquid tank.
9. liquid circulation regulating system according to claim 8, which is characterized in that the liquid pump is oil pump；The confession
Liquid pipe road is fuel feeding main pipe；The liquid tank is oil tank；
The oil inlet of the fuel feeding main pipe connects the outlet of the oil pump；
The oil outlet of the fuel feeding main pipe is for being separately connected fuel system and boiler.
10. liquid circulation regulating system according to claim 9, which is characterized in that further include oil inlet shut-off valve；
The oil outlet of the fuel feeding main pipe connects the boiler by the oil inlet shut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201343.0U CN209386347U (en) | 2018-12-26 | 2018-12-26 | Liquid circulation regulating device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201343.0U CN209386347U (en) | 2018-12-26 | 2018-12-26 | Liquid circulation regulating device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209386347U true CN209386347U (en) | 2019-09-13 |
Family
ID=67873952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822201343.0U Active CN209386347U (en) | 2018-12-26 | 2018-12-26 | Liquid circulation regulating device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209386347U (en) |
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2018
- 2018-12-26 CN CN201822201343.0U patent/CN209386347U/en active Active
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