CN208793232U - The fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor - Google Patents
The fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor Download PDFInfo
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- CN208793232U CN208793232U CN201821169495.0U CN201821169495U CN208793232U CN 208793232 U CN208793232 U CN 208793232U CN 201821169495 U CN201821169495 U CN 201821169495U CN 208793232 U CN208793232 U CN 208793232U
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- valve
- slide valve
- nozzle opening
- oilhole
- valve block
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Abstract
A kind of fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor, including a valve block, outside are body mating surface, inside is rotor engagement face；Further include a fuel-displaced access, oilhole is entered by an at least body nozzle opening, at least a slide valve and at least a slide valve oil outlet forms；Body nozzle opening is set to respective rotor setting on the inner wall of body；Slide valve enters oilhole and corresponds to the setting of body nozzle opening in valve block body mating surface；Body nozzle opening and slide valve enter oilhole and are arranged along the axial direction of rotor, and when valve block horizontal displacement, the two has contraposition connection and two states of closing that are staggered；Slide valve oil outlet is opened on valve block rotor engagement face, is entered oilhole with slide valve and is connected to, when sliding block, which enters oilhole, to be connected to the contraposition of body nozzle opening, fuel-displaced access conducting；Conversely, fuel-displaced access closing.The utility model can adjust the oil stream amount of compressor while adjusting compressor load, realize " on-demand fuel feeding ", to reduce the viscosity resistance of rotating member, promote the performance of compressor.
Description
Technical field
The utility model relates to screw compressors, and in particular to a kind of fuel supply flow rate self-regulation slide valve of helical-lobe compressor
Structure.
Background technique
With the continuous renewal of helical-lobe compressor technology, obtained extensively in fields such as air-conditioning, refrigeration, freezing and chemical industry
General application.The working principle of helical-lobe compressor is rotated by electric motor driven screw rotor, and screw rotor and star-wheel are passed through
Cooperation compression refrigeration working medium makes the boost in pressure of refrigeration working medium, and then is sent into condenser by the exhaust outlet of compressor.Screw rod
The refrigeration effect of compressor and the capacity of exhaust outlet are directly proportional, and when capacity is higher, refrigeration effect is stronger.
Wherein, for refrigeration effect in regulation room, need to adjust the capacity of compressor, usual screw compressor is logical
The movement of slide valve is crossed to adjust capacity, to adjust load.Loading onto one in the high-pressure side of rotor can move axially
Slide valve adjusts the load of compressor by the axial position of regulating slide valve.Its principle is that the axial direction using slide valve in screw rod is moved
It is dynamic, to change effective axial active length of screw rod, make load continuous stepless regulation between 100% and 10%.
Meanwhile screw compressor in the process of running, position of bearings and star-wheel engage position with screw rotor
It sets and has abrasion, and there are fever phenomenons, it is therefore desirable to these position fuel feeding, to play lubrication and cooling effect.
Currently available technology mainly realizes the confession to above-mentioned component by the nozzle opening on the oil circuit and body inner wall in compressor
Oil.
The prior art has the disadvantage that
Current nozzle opening design, the flow of oil spout are only related to Xis, exhaust pressure value.And theoretically, work as compressor
When in sub-load, the calorific value of bearing and screw rotor can be reduced with spider piece frictional dissipation, it is therefore desirable to lubrication
Oil stream amount also accordingly reduces.Since the flow of prior art compressor oil spout is only related with Xis, pressure at expulsion, in same work
Under condition when load variations, real-time control oil stream amount can not be played the role of, due to oil flow effect rotating member viscosity resistance,
Therefore this performance that will influence compressor to a certain extent.
Therefore, above-mentioned the shortcomings of the prior art how is solved, is become as the class to be researched and solved of the utility model
Topic.
Summary of the invention
The purpose of the utility model is to provide a kind of fuel supply flow rate of helical-lobe compressor self-regulation sliding valve structures.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor, in the body of the compressor；The cunning
Valve arrangement includes a valve block, which does horizontal reciprocating displacement by the axial direction of a driving mechanism drives edge compressor drum；It is described
The outer Slideslip of valve block fits in the inner wall of the body as body mating surface, and the inside of the valve block is an inner concave arc surface,
The periphery of the rotor is fitted in as rotor engagement face；
It further include a fuel-displaced access, which enters oilhole and extremely by an at least body nozzle opening, an at least slide valve
Few slide valve oil outlet composition；Wherein, at least one body nozzle opening is set on the inner wall of the body, and corresponding described turn
Son setting；At least one slide valve enters oilhole in the body mating surface of the valve block, is bonded the inner wall of the body, and right
The body nozzle opening is answered to be arranged；The body nozzle opening and the slide valve enter axial direction setting of the oilhole along the rotor, when
When the valve block horizontal displacement, the slide valve, which enters oilhole and the body nozzle opening there is contraposition be connected to and be staggered, closes two works
Make state；
At least one slide valve oil outlet is opened on the rotor engagement face of the valve block, the slide valve oil outlet with it is described
Slide valve enters oilhole connection setting, and when the sliding block, which enters oilhole, to be connected to body nozzle opening contraposition, the fuel-displaced access is led
It is logical；When the sliding block enters oilhole and the body nozzle opening is staggered when closing, at this time body nozzle opening by the valve block body
Mating surface stops, the fuel-displaced access closing.
Related content in above-mentioned technical proposal is explained as follows:
1. in above scheme, front and back being carried out in the horizontal direction to valve block by driving mechanism and adjusts realization to body
Oil may be implemented to the switch of the body nozzle opening in the case where other fuel feeding accesses on body are opened in the open and close of nozzle opening
The adjusting of amount；Simultaneously as the front and back of valve block adjusts the height Load Regulation of i.e. corresponding compressor itself, it thus can realize and " press
Need fuel feeding ", reduce the viscosity resistance of each rotating member.
2. in above scheme, the body nozzle opening and the slide valve enter oilhole and are equipped with one.
3. in above scheme, it is long hole, length side that the body nozzle opening and the slide valve, which enter at least one of oilhole,
To the axial direction of the correspondence rotor；When valve block translation, the body nozzle opening enters the mating surface of oilhole with the slide valve
With the synchronous variation of the displacement of valve block, the aperture regulation to the fuel-displaced access is constituted.
4. in above scheme, the body nozzle opening and the slide valve enter oilhole be equipped with it is multiple, and along the axis of rotor
It is arranged to equidistant intervals；When valve block translation, each body nozzle opening enters the cooperation number of oilhole with each slide valve
Amount constitutes the aperture regulation to the fuel-displaced access with the synchronous variation of displacement of valve block.
5. in above scheme, entering oilhole by the way that multiple body nozzle openings and slide valve are arranged, or the two is set as long hole
Design can be carried out in the horizontal direction front and back to valve block by driving mechanism and adjust the step-less adjustment realized to oil spout oil mass,
Simultaneously as the front and back of valve block adjusts the height Load Regulation of i.e. corresponding compressor itself, the height of oil spout oil mass thus can be realized
The high low adjustment of low adjustment and compressor load grade ratio carries out, to truly realize " on-demand fuel feeding ", utmostly subtracts
The viscosity resistance of small rotating member.
When compressor is in high loaded process, rotating member needs more oil masses at this time；At this point, when body nozzle opening and
Slide valve enters oilhole when being multiple, the uniform contraposition cooperation of the former and the latter；Alternatively, when body nozzle opening and slide valve enter oilhole for length
The mating surface of Kong Shi, the two are maximum.
Conversely, the oil mass that rotating member needs at this time is less when compressor is in low load operation；At this point, when body sprays
Oilhole and slide valve enter oilhole when being multiple, the former and the latter are in misaligned state, or only retain a pair of holes and be in contraposition cooperation
State；Alternatively, the mating surface of the two is minimum or without mating surface when it is long hole that body nozzle opening and slide valve, which enter oilhole,.Due to machine
It is additionally provided with other fuel feeding accesses on body, therefore not will cause the absolute no oil condition of rotating member.
6. in above scheme, the slide valve oil outlet is equipped with one, and it is fuel-displaced with the slide valve that each slide valve enters oilhole
Hole connection setting.
7. in above scheme, the slide valve oil outlet is equipped with multiple, and each slide valve enters oilhole and each slide valve is fuel-displaced
Hole corresponds connection setting.
8. in above scheme, the driving mechanism is a cylinder or hydraulic cylinder, and the piston of the cylinder or hydraulic cylinder passes through one
Guide rod drives the valve block to be displaced in the horizontal direction.
9. in above scheme, the driving mechanism is screw mandrel drive mechanism, the valve block and the wire rod thread cooperate；Institute
It is horizontally disposed to state screw rod, the valve block is limited by the body and rotated, and is constituted when screw rod rotation, the valve block is in screw rod
On move horizontally.
The working principle and advantage of the utility model are as follows:
The fuel supply flow rate of helical-lobe compressor of the utility model a kind of is self-regulated sliding valve structure, including a valve block, and outside is
Body mating surface, inside are rotor engagement face；Further include a fuel-displaced access, is entered by an at least body nozzle opening, an at least slide valve
Oilhole and at least slide valve oil outlet composition；Body nozzle opening is set to respective rotor setting on the inner wall of body；Slide valve enters oilhole
The setting of body nozzle opening is corresponded in valve block body mating surface；Body nozzle opening and slide valve enter oilhole and set along the axial direction of rotor
It sets, when valve block horizontal displacement, the two has contraposition connection and two states of closing that are staggered；Slide valve oil outlet is opened in valve block and turns
In sub- mating surface, enters oilhole with slide valve and be connected to, when sliding block, which enters oilhole, to be connected to the contraposition of body nozzle opening, fuel-displaced access conducting；
When sliding block enters oilhole and body nozzle opening is staggered when closing, body nozzle opening is stopped by the body mating surface of valve block at this time, fuel-displaced
Access closing.
Compared to existing technologies, the utility model can adjust the oil stream of compressor while adjusting compressor load
Amount, realizes " on-demand fuel feeding ", to reduce the viscosity resistance of rotating member, promotes the performance of compressor.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model embodiment valve block；
Attached drawing 2 be in Fig. 1 T-T to diagrammatic cross-section；
Attached drawing 3 is the stereoscopic schematic diagram of the utility model embodiment valve block；
Attached drawing 4 is the schematic diagram of the section structure when the utility model embodiment compressor is in high load capacity；
Attached drawing 5 is enlarged drawing at A in Fig. 4；
Attached drawing 6 is the schematic diagram of the section structure when the utility model embodiment compressor is in underload；
Attached drawing 7 is enlarged drawing at B in Fig. 6.
In the figures above: 1. bodies；2. valve block；3. rotor；4. body mating surface；5. rotor engagement face；6. body oil spout
Hole；7. slide valve enters oilhole；8. slide valve oil outlet.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment: referring to shown in attached drawing 1 ~ 7, a kind of fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor is set to institute
It states in the body 1 of compressor；The sliding valve structure includes a valve block 2, and the valve block 2 is by a driving mechanism drives edge compressor drum
3 axial direction does horizontal reciprocating displacement；The outer Slideslip of the valve block 2 fits in the inner wall of the body 1 as body mating surface
4, the inside of the valve block 2 is an inner concave arc surface, fits in the periphery of the rotor 3 as rotor engagement face 5.
It further include a fuel-displaced access, which enters oilhole 7 and 8 groups of slide valve oil outlet by body nozzle opening 6, slide valve
At；Wherein, the body nozzle opening 6 is set on the inner wall of the body 1, and the corresponding rotor 3 is arranged；The slide valve enters oil
Hole 7 is set in the body mating surface 4 of the valve block 2, is long hole form, and length direction corresponds to the axial direction of the rotor 3；It is described
Slide valve enters the inner wall that oilhole 7 is bonded the body 1, and the corresponding body nozzle opening 6 is arranged；The body nozzle opening 6 and
The slide valve enter oilhole 7 along the rotor 3 axial direction setting, when 2 horizontal displacement of valve block, the slide valve enter oilhole 7 with
The body nozzle opening 6 has contraposition connection and two states of closing that are staggered.
The slide valve oil outlet 8 is opened on the rotor engagement face 5 of the valve block 2, the slide valve oil outlet 8 and the cunning
Valve enters the connection setting of oilhole 7；As shown in Figure 4,5, when the sliding block, which enters oilhole 7, to be connected to the body nozzle opening 6 contraposition, institute
State fuel-displaced access conducting；As shown in Figure 6,7, when the sliding block, which enters oilhole 7, and the body nozzle opening 6 is staggered closes, at this time
Body nozzle opening 6 is stopped by the body mating surface 4 of the valve block 2, the fuel-displaced access closing.
It designs whereby, front and back can be carried out in the horizontal direction to valve block 2 by driving mechanism and adjust realization to body spray
Oil may be implemented to the switch of the body nozzle opening 6 in the case where other fuel feeding accesses on body are opened in the open and close of oilhole 6
The adjusting of amount；Simultaneously as the front and back of valve block 2 adjusts the height Load Regulation of i.e. corresponding compressor itself, it thus can realize and " press
Need fuel feeding ", reduce the viscosity resistance of each rotating member (such as rotor 3, star-wheel).
Specifically, as shown in Figure 4,5, when compressor is in high loaded process, rotating member needs more oil masses at this time；
The body nozzle opening 6 enters the contraposition completely of oilhole 7 with the slide valve and cooperates at this time.As shown in Figure 6,7, when compressor is in low negative
When lotus operates, the oil mass that rotating member needs at this time is less；The body nozzle opening 6 enters oilhole 7 in mistake with the slide valve at this time
Position state, the two is without mating surface.Due to being additionally provided with other fuel feeding accesses on body 1, the absolute nothing of rotating member not will cause
Oil condition.
Wherein, it is long hole form (non-attached drawing shows), length side that the body nozzle opening 6 and the slide valve, which enter oilhole 7,
To the axial direction for corresponding to the rotor 3；When the valve block 2 translation, the body nozzle opening 6 enters oilhole 7 with the slide valve
Mating surface is constituted to the aperture regulation of the fuel-displaced access with the synchronous variation of displacement of valve block 2, it can be achieved that the stepless-adjustment of oil mass
Section.
Wherein, the body nozzle opening 6 and the slide valve, which enter oilhole 7, can also be equipped with multiple (non-attached drawing shows), and edge turns
The equally spaced axially arrangement of son 3；When the valve block 2 translation, each body nozzle opening 6 enters oilhole with each slide valve
7 cooperation quantity constitutes the aperture regulation to the fuel-displaced access with the synchronous variation of displacement of valve block 2, same that oil can be achieved
The step-less adjustment of amount.
Wherein, the slide valve oil outlet 8 can also be equipped with multiple (non-attached drawing shows), each slide valve enter oilhole 7 with it is each described
Slide valve oil outlet 8 corresponds connection setting.
Wherein, the driving mechanism (not marking in figure) is a cylinder or hydraulic cylinder, and the piston of the cylinder or hydraulic cylinder is logical
Crossing a guide rod drives the valve block 2 to be displaced in the horizontal direction.Alternatively, the driving mechanism is screw mandrel drive mechanism, the valve block 2
Cooperate with the wire rod thread；The screw rod is horizontally disposed, and the valve block 2 is limited by the body 1 and rotated, and constitutes and works as the silk
When bar rotates, the valve block 2 moves horizontally on screw rod.
Compared to existing technologies, the utility model can adjust the oil stream of compressor while adjusting compressor load
Amount, realizes " on-demand fuel feeding ", to reduce the viscosity resistance of rotating member, promotes the performance of compressor.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (8)
- The sliding valve structure 1. a kind of fuel supply flow rate of helical-lobe compressor is self-regulated, in the body of the compressor；Its feature exists In:The sliding valve structure includes a valve block, which is done back and forth horizontally by the axial direction of a driving mechanism drives edge compressor drum Displacement；The outer Slideslip of the valve block fits in the inner wall of the body as body mating surface, and the inside of the valve block is one Inner concave arc surface fits in the periphery of the rotor as rotor engagement face；It further include a fuel-displaced access, which enters oilhole and at least one by an at least body nozzle opening, an at least slide valve Slide valve oil outlet composition；Wherein, at least one body nozzle opening is set on the inner wall of the body, and the corresponding rotor is set It sets；At least one slide valve enters oilhole in the body mating surface of the valve block, is bonded the inner wall of the body, and corresponding institute State the setting of body nozzle opening；The body nozzle opening and the slide valve enter axial direction setting of the oilhole along the rotor, when described When valve block horizontal displacement, the slide valve, which enters oilhole and the body nozzle opening there is contraposition be connected to and be staggered, closes two work shapes State；At least one slide valve oil outlet is opened on the rotor engagement face of the valve block, the slide valve oil outlet and the slide valve Enter oilhole connection setting, when the slide valve, which enters oilhole, to be connected to body nozzle opening contraposition, the fuel-displaced access conducting；When The slide valve enters oilhole and the body nozzle opening is staggered when closing, at this time body nozzle opening by the valve block body mating surface Stop, the fuel-displaced access closing.
- 2. sliding valve structure according to claim 1, it is characterised in that: it is equal that the body nozzle opening and the slide valve enter oilhole Equipped with one.
- 3. sliding valve structure according to claim 2, it is characterised in that: the body nozzle opening and the slide valve enter in oilhole At least one is long hole, and length direction corresponds to the axial direction of the rotor；When the valve block translation when, the body nozzle opening with The slide valve enters the mating surface of oilhole with the synchronous variation of displacement of valve block, constitutes the aperture regulation to the fuel-displaced access.
- 4. sliding valve structure according to claim 1, it is characterised in that: it is equal that the body nozzle opening and the slide valve enter oilhole Equipped with multiple, and along the equally spaced axially arrangement of rotor；When valve block translation, each body nozzle opening and each The slide valve enters the cooperation quantity of oilhole with the synchronous variation of displacement of valve block, constitutes the aperture regulation to the fuel-displaced access.
- 5. sliding valve structure according to claim 4, it is characterised in that: the slide valve oil outlet is equipped with one, each cunning Valve enters oilhole and is connected to setting with the slide valve oil outlet.
- 6. sliding valve structure according to claim 4, it is characterised in that: the slide valve oil outlet is equipped with multiple, each cunning Valve enters oilhole and is connected to setting with each slide valve oil outlet one-to-one correspondence.
- 7. sliding valve structure according to claim 1, it is characterised in that: the driving mechanism is a cylinder or hydraulic cylinder, is somebody's turn to do The piston of cylinder or hydraulic cylinder drives the valve block to be displaced in the horizontal direction by a guide rod.
- 8. sliding valve structure according to claim 1, it is characterised in that: the driving mechanism is screw mandrel drive mechanism, described Valve block and the wire rod thread cooperate；The screw rod is horizontally disposed, and the valve block is limited by the body and rotated, and constitutes when described When screw rod rotates, the valve block moves horizontally on screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169495.0U CN208793232U (en) | 2018-07-23 | 2018-07-23 | The fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169495.0U CN208793232U (en) | 2018-07-23 | 2018-07-23 | The fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor |
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| Publication Number | Publication Date |
|---|---|
| CN208793232U true CN208793232U (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821169495.0U Active CN208793232U (en) | 2018-07-23 | 2018-07-23 | The fuel supply flow rate self-regulation sliding valve structure of helical-lobe compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455022A (en) * | 2019-08-13 | 2019-11-15 | 深圳市云能科技有限公司 | A method of it improving COP and increases cold water main unit capability control range |
-
2018
- 2018-07-23 CN CN201821169495.0U patent/CN208793232U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455022A (en) * | 2019-08-13 | 2019-11-15 | 深圳市云能科技有限公司 | A method of it improving COP and increases cold water main unit capability control range |
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