CN105422453B - A kind of oil free screw formula two-stage air compressor - Google Patents
A kind of oil free screw formula two-stage air compressor Download PDFInfo
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- CN105422453B CN105422453B CN201510917741.0A CN201510917741A CN105422453B CN 105422453 B CN105422453 B CN 105422453B CN 201510917741 A CN201510917741 A CN 201510917741A CN 105422453 B CN105422453 B CN 105422453B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0092—Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a kind of oil free screw formula two-stage air compressor, belong to Compressor Technology field.It solves the problems, such as existing oil free screw formula two-stage air compressor poor work stability.This oil free screw formula two-stage air compressor, including motor, one stage of compression machine host, two-stage compression machine host, one-level aqueous vapor bucket and two level aqueous vapor bucket, the one-level aqueous vapor bucket is connected with the exhaust outlet of one stage of compression machine host, one-level water filter and one-level cooler are connected with turn between the delivery port of one-level aqueous vapor bucket and the water inlet of one stage of compression machine host, the gas outlet of one-level aqueous vapor bucket is connected with the air inlet of two-stage compression machine host, two level aqueous vapor bucket is connected with the exhaust outlet of two-stage compression machine host, two level moisturizing magnetic valve is provided between the delivery port of one-level aqueous vapor bucket and the air inlet of two-stage compression machine host.It carries out water lubrication using recirculated water to two stages of compression machine host, can export the air of big compression ratio, and the good operating stability of compressor.
Description
Technical field
The invention belongs to Compressor Technology field, is related to a kind of air compressor, particularly a kind of oil free screw formula two-stage
Air compressor.
Background technology
At present, China's oil-free screw compressor is quite varied in the application of the industries such as electronics, medicine, tobacco, and it is logical
The seal that anti-oil leakage is set in main frame is crossed, has both avoided the impurity in lubricating oil from entering rotor, and gas leakage can be prevented, is ensured
The continuously compressed air of output cleaning oil-free.Chinese patent【Application publication number：CN103925215A】Disclose one kind
Intelligent water automatic cycle movable type single screw rod oil-free air compressor unit, including main frame transmission mechanism, water cooling system, water
Level controlling system, integrated gas tank component, water storage box assembly, gas-water separation-filtering-gas storage integrated apparatus and electric cabinet；It is described
One end is provided with main frame transmission mechanism above integrated gas tank, and the other end is provided with water cooling system.Although it can provide cleaning oil-free
Compressed air, but the compressor is only single-stage compressor, and its air compression ratio is relatively low, if only with increase compression master
The series of machine, but due to there is relevance between the compression main frames at different levels of compound compressor, if compression main frame at different levels
Between water circulation pipe set it is not perfect enough, can not only play a part of water lubrication, also affect the work of compressor
Make stability.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that a kind of oil free screw formula two-stage air
Compressor, it carries out water lubrication using recirculated water to two stages of compression machine host, can export the air of big compression ratio, and compressor
Good operating stability.
The purpose of the present invention can be realized by following technical proposal：A kind of oil free screw formula two-stage air compressor, bag
Motor, one stage of compression machine host and two-stage compression machine host are included, the one stage of compression machine host is connected with motor, and described two
Level compressor host is connected with one stage of compression machine host, it is characterised in that the oil free screw formula two-stage air compressor also wraps
One-level aqueous vapor bucket and two level aqueous vapor bucket are included, the one-level aqueous vapor bucket is connected with the exhaust outlet of one stage of compression machine host, the one-level
One-level water filter and one-level cooler are connected with turn between the delivery port of aqueous vapor bucket and the water inlet of one stage of compression machine host,
The gas outlet of the one-level aqueous vapor bucket is connected with the air inlet of two-stage compression machine host, the two level aqueous vapor bucket and split-compressor
The exhaust outlet of main frame is connected, and is connected with turn between the delivery port of the two level aqueous vapor bucket and the water inlet of two-stage compression machine host
Two-stage water filtering device and secondary coolers, set between the delivery port of the one-level aqueous vapor bucket and the air inlet of two-stage compression machine host
It is equipped with two level moisturizing magnetic valve.
In the technical program, air is pressurizeed twice by one stage of compression machine host and two-stage compression machine host successively,
Can be with higher pressure output, the recirculated water for being lubricated to compressor can be in one stage of compression machine host, one-level water
Between gas bucket, one-level water filter and one-level cooler, and two-stage compression machine host, two level aqueous vapor bucket, two-stage water filtering device
Two partial circulatings are formed between secondary coolers, so as to be followed respectively to one stage of compression machine host and two-stage compression machine host
Ring lubricates, because this air compressor is two-stage compressor, after the long period that works, due to the sky in two-stage compression machine host
Atmospheric pressure is more than the air pressure in one stage of compression machine host, and recirculated water can be gradual by two-stage compression machine host and two level aqueous vapor bucket
One stage of compression machine host and one-level aqueous vapor bucket are transitioned into, so as to cause the water level decreasing in two level aqueous vapor bucket and two-stage compression owner
The situation of machine lack of lubrication, the technical program between one-level aqueous vapor bucket and two-stage compression machine host by setting two level moisturizing electricity
Magnet valve, extra recirculated water can be provided from one-level aqueous vapor bucket to two-stage compression machine host, so as to ensure whole air compressor
Working stability.
In above-mentioned oil free screw formula two-stage air compressor, the air inlet and outer water receiving of the one stage of compression machine host
It is connected with one-level moisturizing magnetic valve and one-level moisturizing water pump between source in turn.When one-level aqueous vapor bucket is to two-stage compression machine host and two
After level aqueous vapor bucket moisturizing, the water of one-level aqueous vapor bucket and one stage of compression machine host can be reduced accordingly, now, pass through one-level moisturizing electricity
Magnet valve and one-level moisturizing water pump can carry out moisturizing from source, avoid due to one-level aqueous vapor bucket and one from external water source moisturizing
Level compressor host water shortage and cause this air compressor job insecurity.
In above-mentioned oil free screw formula two-stage air compressor, it is provided between the one-level aqueous vapor bucket and external water source
One-level aqueous vapor bucket water intaking valve, two level aqueous vapor bucket water intaking valve, and one-level water are provided between the two level aqueous vapor bucket and external water source
It is in parallel between gas bucket water intaking valve and two level aqueous vapor bucket water intaking valve.One-level aqueous vapor bucket and two level aqueous vapor bucket can be by same external water sources
Supplied water, water lines layout is simpler, and moisturizing is quicker, can preferably ensure the working stability of this air compressor
Property.
In above-mentioned oil free screw formula two-stage air compressor, one-level aqueous vapor bucket row is connected with the one-level aqueous vapor bucket
Water valve, two level aqueous vapor bucket draining valve is connected with the two level aqueous vapor bucket.One-level aqueous vapor bucket draining valve is used for one-level aqueous vapor bucket
Interior recycling waste water discharge, and two level aqueous vapor bucket draining valve are respectively used to discharge recycling waste water in two level aqueous vapor bucket, so as to keep
The quality of the cleannes of recirculated water in this air compressor and the compressed air of output.
In above-mentioned oil free screw formula two-stage air compressor, the one-level aqueous vapor bucket draining valve includes one-level draining electricity
Magnet valve, one-level drain filter and one-level manual drainage valve, the one-level drain solenoid valve are connected with one-level drain filter
It is in parallel again with one-level manual drainage valve after connecing, the two level aqueous vapor bucket draining valve includes Municipal secondary effluent magnetic valve, two level is arranged
Water filter and two-stage hand water discharging valve, the Municipal secondary effluent magnetic valve and Municipal secondary effluent filter be connected after again with two level
Manual drainage valve is in parallel.The aqueous vapor bucket of this air compressor is respectively provided with two waste discharge water lines, is all the way Manual draining valve
Door, for being expelled directly out waste water, another way includes drain solenoid valve and drain filter, and waste water is after drain filter filters
It can be automatically drained out by drain solenoid valve.
In above-mentioned oil free screw formula two-stage air compressor, the air inlet and one-level water of the two-stage compression machine host
Two-stage compression main frame pressure release electromagnetic valve is additionally provided between gas bucket.When air pressure inside two-stage compression machine host is excessive,
Two-stage compression main frame pressure release electromagnetic valve open so that the air return inside two-stage compression machine host into one-level aqueous vapor bucket, from
And the internal pressure of two-stage compression main frame is reduced, ensure the job stability of this air compressor.
In above-mentioned oil free screw formula two-stage air compressor, the oil free screw formula two-stage air compressor also includes
Air cleaner, the air cleaner are connected with the air inlet of one stage of compression machine host, the two level aqueous vapor bucket and air mistake
Filter is connected, and level two emptying magnetic valve and high pressure flow regulation are provided between two level aqueous vapor bucket and air cleaner
Valve.The air that air cleaner is used to compress is filtered, and ensures the quality of compressed air, while avoid miscellaneous in air
This air compressor of verifying causes to damage, and influences job stability and service life, sets high pressure flow to adjust on two level aqueous vapor bucket
Valve is saved, the compressed air in two level aqueous vapor bucket can be released, unloading machine internal pressure, while it is vented electricity by setting
Magnet valve, the pressure of foundation inside aqueous vapor bucket can be facilitated restarting to draining when delay is shut down.
In above-mentioned oil free screw formula two-stage air compressor, the one-level cooler and secondary coolers are board-like
Water-cooling cooler.Recirculated water is cooled down in board-like water-cooling cooler using convection current form, good cooling results, simultaneously because with
It is water in cooling and for the medium of lubrication, same external water source can be used to intake, it is simple in construction, be advantageous to improve this air
The job stability of compressor.
In above-mentioned oil free screw formula two-stage air compressor, one-level water level control is connected with the one-level aqueous vapor bucket
Device, two level water level controller is connected with the two level aqueous vapor bucket.One-level water level controller and two level water level controller with this
The electric appliance box electrical connection of air compressor, one-level water level controller can detect the water level inside one-level aqueous vapor bucket, and can basis
The folding for the magnetic valve on each pipeline that water level control inside one-level aqueous vapor bucket is connected with one-level aqueous vapor bucket, is realized to one-level
The regulation and control of water level in aqueous vapor bucket, two level water level controller can detect the water level inside two level aqueous vapor bucket, and can be according to two level
The folding for the magnetic valve on each pipeline that water level control inside aqueous vapor bucket is connected with two level aqueous vapor bucket, is realized to two level aqueous vapor
The regulation and control of water level in bucket, this air compressor by one-level water level controller is set and two level water level controller can ensure it is whole
Individual water circulation pipe it is unimpeded so that this air compressor has good job stability.
In above-mentioned oil free screw formula two-stage air compressor, the one-level water level controller and two level water level controller
Structure is identical, and one-level water level controller and two level water level controller include housing and several Fork LIquid Level Switch, the sound
Fork liquid-level switch is vertically arranged in the inner chamber of housing, and Fork LIquid Level Switch has setting down and for the fork of sensed water level
Body, each bottom height for pitching body differ.Fork LIquid Level Switch is vertically arranged, and the fork body bottom of each Fork LIquid Level Switch is equal
Positioned at different high points, the liquid level in the aqueous vapor bucket that is connected with level switch can be detected exactly, so as to more
Ensure the job stability of aqueous vapor bucket well.
Compared with prior art, the present invention has the following advantages that：
1st, the compressed air of this oil free screw formula two-stage air compressor passes through one stage of compression machine host and two level pressure successively
Contracting machine host is pressurizeed twice, can be with higher pressure output, and the recirculated water for being lubricated to compressor can
Between one stage of compression machine host, one-level aqueous vapor bucket, one-level water filter and one-level cooler, and two-stage compression machine host,
Two partial circulatings are formed between two level aqueous vapor bucket, two-stage water filtering device and secondary coolers, so as to respectively to one stage of compression owner
Machine and two-stage compression machine host are circulated lubrication respectively, and the compressed air quality of output is more preferable；
2nd, this oil free screw formula two-stage air compressor can be entered by water level controller to the height of water level in aqueous vapor bucket
Row detection, and the related magnetic valve folding of aqueous vapor bucket is automatically controlled, realize the automatic water supplement and draining of aqueous vapor bucket, this oil free screw
The job stability of formula two-stage air compressor is more preferable；
3rd, it is provided with and lets out between the two-stage compression machine host of this oil free screw formula two-stage air compressor and one-level aqueous vapor bucket
Pressure electromagnetic valve, safety in utilization are more preferable.
Brief description of the drawings
Fig. 1 is the structural representation of this air compressor.
Fig. 2 is the system flow chart of this air compressor.
Fig. 3 is the attachment structure sectional view of the housing of water level controller and upper cover plate in this air compressor.
Fig. 4 is the attachment structure schematic diagram of the upper cover plate of water level controller and Fork LIquid Level Switch in this air compressor.
Fig. 5 is the upward view of the upper cover plate with Tuning Fork Switch of water level controller in this air compressor.
In figure, 1, motor；2nd, one stage of compression machine host；3rd, two-stage compression machine host；4th, electric appliance box；5th, air filtration
Device；6th, one-level aqueous vapor bucket；7th, two level aqueous vapor bucket；8th, one-level cooler；9th, secondary coolers；10th, one-level water filter；11st, two
Level water filter；12nd, air outlet slit；13rd, external water source；14th, one-level moisturizing magnetic valve；15th, one-level moisturizing water pump；16th, one-level
Aqueous vapor bucket water intaking valve；17th, two level aqueous vapor bucket water intaking valve；18th, one-level aqueous vapor bucket draining valve；181st, one-level drain solenoid valve；182、
One-level drain filter；183rd, one-level manual drainage valve；19th, two level aqueous vapor bucket draining valve；191st, Municipal secondary effluent magnetic valve；
192nd, Municipal secondary effluent filter；193rd, two-stage hand water discharging valve；20th, two-stage compression main frame pressure release electromagnetic valve；21st, level two
Emptying magnetic valve；22nd, high-pressure flow regulating valve；23rd, one-level water level controller；231st, housing；232nd, Fork LIquid Level Switch；233、
Pitch body；234th, upper cover plate；24th, two level water level controller；25th, two level moisturizing magnetic valve.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Reference picture 1, the present embodiment are a kind of oil free screw formula two-stage air compressor, including motor 1, stage compressor
Main frame 2, two-stage compression machine host 3, electric appliance box 4, air cleaner 5, one-level aqueous vapor bucket 6, two level aqueous vapor bucket 7 and air outlet slit
12, electric appliance box 4 is used for the folding for controlling each valve in this compressor host 2, and one stage of compression machine host 2 is connected with motor 1,
Two-stage compression machine host 3 is connected with one stage of compression machine host 2, the air inlet phase of air cleaner 5 and one stage of compression machine host 2
Even, one-level aqueous vapor bucket 6 is connected with the exhaust outlet of one stage of compression machine host 2, the delivery port of one-level aqueous vapor bucket 6 and one stage of compression owner
It is connected with one-level water filter 10 and one-level cooler 8, the gas outlet and two of one-level aqueous vapor bucket 6 between the water inlet of machine 2 in turn
The air inlet of level compressor host 3 is connected, and two level aqueous vapor bucket 7 is connected with the exhaust outlet of two-stage compression machine host 3, two level aqueous vapor bucket
Two-stage water filtering device 11 and secondary coolers 9 are connected with turn between 7 delivery port and the water inlet of two-stage compression machine host 3,
Two level moisturizing magnetic valve 25 is provided between the delivery port of one-level aqueous vapor bucket 6 and the air inlet of two-stage compression machine host 3, air goes out
Mouth 12 is connected with the gas outlet of two level aqueous vapor bucket 7.Air enters by one stage of compression machine host 2 and two-stage compression machine host 3 successively
Row pressurizes twice, can be with higher pressure output, and the recirculated water for being lubricated to compressor can be in stage compressor
Between main frame 2, one-level aqueous vapor bucket 6, one-level water filter 10 and one-level cooler 8, and two-stage compression machine host 3, two level water
Two partial circulatings are formed between gas bucket 7, two-stage water filtering device 11 and secondary coolers 9, so as to respectively to one stage of compression machine host 2
Circulation lubrication is carried out with two-stage compression machine host 3, because this air compressor is two-stage compressor, after the long period that works,
Because the air pressure in two-stage compression machine host 3 is more than the air pressure in one stage of compression machine host 2, recirculated water can be by two level
Compressor host 3 and two level aqueous vapor bucket 7 are gradually transitions one stage of compression machine host 2 and one-level aqueous vapor bucket 6, so as to cause two level water
The situation of 7 water level decreasing and the lack of lubrication of two-stage compression machine host 3 in gas bucket, the technical program pass through in one-level aqueous vapor bucket 6
Two level moisturizing magnetic valve is set between two-stage compression machine host 3, can be carried from one-level aqueous vapor bucket 6 to two-stage compression machine host 3
For extra recirculated water, so as to ensure the working stability of whole air compressor.
Concrete structure is as follows, with reference to Fig. 2, is sequentially connected between the air inlet and external water source 13 of one stage of compression machine host 2
There are one-level moisturizing magnetic valve 14 and one-level moisturizing water pump 15.When one-level aqueous vapor bucket 6 is to two-stage compression machine host 3 and two level aqueous vapor bucket
After 7 moisturizings, the water of one-level aqueous vapor bucket 6 and one stage of compression machine host 2 can be reduced accordingly, now, pass through one-level moisturizing magnetic valve
14 and one-level moisturizing water pump 15 from the moisturizing of external water source 13, moisturizing can be carried out from source, is avoided due to the He of one-level aqueous vapor bucket 6
The water shortage of one stage of compression machine host 2 and cause this air compressor job insecurity.
It is provided with one-level aqueous vapor bucket water intaking valve 16 between one-level aqueous vapor bucket 6 and external water source 13, two level aqueous vapor bucket 7 and external
Be provided with two level aqueous vapor bucket water intaking valve 17 between water source 13, and one-level aqueous vapor bucket water intaking valve 16 and two level aqueous vapor bucket water intaking valve 17 it
Between be in parallel.One-level aqueous vapor bucket draining valve 18 is connected with one-level aqueous vapor bucket 6, two level aqueous vapor bucket is connected with two level aqueous vapor bucket 7
Draining valve 19, it is manual that one-level aqueous vapor bucket draining valve 18 includes one-level drain solenoid valve 181, one-level drain filter 182 and one-level
Water discharging valve 183, one-level drain solenoid valve 181 and one-level drain filter 182 be connected after again with one-level manual drainage valve
183 are in parallel, and two level aqueous vapor bucket draining valve 19 includes Municipal secondary effluent magnetic valve 191, Municipal secondary effluent filter 192 and two-stage hand
Water discharging valve 193, Municipal secondary effluent magnetic valve 191 and Municipal secondary effluent filter 192 be connected after again with two-stage hand water discharging valve
193 are in parallel.Respectively there is moisturizing and drainpipe between one-level aqueous vapor bucket 6 and the external world and between two level aqueous vapor bucket 7 and the external world
Road, the cleannes of the lubrication water of this air compressor can be ensured, so as to ensure the working stability of this air compressor.Two level pressure
Two-stage compression main frame pressure release electromagnetic valve 20 is additionally provided between the air inlet and one-level aqueous vapor bucket 6 of contracting machine host 3.Work as two-stage compression
When air pressure inside machine host 3 is excessive, two-stage compression main frame pressure release electromagnetic valve 20 is opened so that two-stage compression machine host 3
Internal air return is into one-level aqueous vapor bucket 6, so as to reduce the internal pressure of two-stage compression main frame 3, ensures that this air compresses
The job stability of machine.Level two emptying magnetic valve 21 and high-pressure spray are provided between two level aqueous vapor bucket 7 and air cleaner 5
Adjustable valve 22.The air that air cleaner 5 is used to compress is filtered, and is ensured the quality of compressed air, is avoided simultaneously
Impurity in air causes to damage to this air compressor, influences job stability and service life, is set on two level aqueous vapor bucket 7
High-pressure flow regulating valve 22, the compressed air in two level aqueous vapor bucket 7 can be released, unloading machine internal pressure, while it
By setting level two emptying magnetic valve 21, inside two level aqueous vapor bucket 7 basis can be pressed when delay is shut down
Power facilitates restarting to draining.
One-level cooler 8 and secondary coolers 9 in the present embodiment are board-like water-cooling cooler, and they are using to manifold
Formula good cooling results, simultaneously because for cooling down and being water for the medium of lubrication, can use to being cooled down in lubrication water
Same external water source water inlet, it is simple in construction, be advantageous to improve the job stability of this air compressor.
With reference to Fig. 3, Fig. 4 and Fig. 5, one-level water level controller 23 is connected with one-level aqueous vapor bucket 6, is connected on two level aqueous vapor bucket 7
It is connected to two level water level controller 24.One-level water level controller 23 is identical with the structure of two level water level controller 24, one-level water level control
Device 23 and two level water level controller 24 include housing 231, several Fork LIquid Level Switch 232 and upper cover plate 234, housing 231
For circular cylinder, upper cover plate 234 is circular slab, passes through the fasteners such as bolt, screw, alignment pin between upper cover plate 234 and housing 231
Realization is detachably connected, and Fork LIquid Level Switch 232 is vertically arranged in the inner chamber of housing 231, the top of Fork LIquid Level Switch 232
It is connected on upper cover plate 234, and Fork LIquid Level Switch 232 has setting down and for the fork body 233 of sensed water level, respectively pitches body
233 bottom height differs.Fork LIquid Level Switch 232 in the present embodiment line centered on the axial line of housing 231 is in
Annular array arranges.The bottom of fork body 233 height of each Fork LIquid Level Switch 232 is in the clockwise direction helically in the present embodiment
Formula raises successively one by one.The detection high order of each Fork LIquid Level Switch 232 is set, and is easy to be adjusted water level controller
And maintenance, so as to ensure the job stability of aqueous vapor bucket.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (9)
1. a kind of oil free screw formula two-stage air compressor, including motor (1), one stage of compression machine host (2) and two-stage compression
Machine host (3), the one stage of compression machine host (2) are connected with motor (1), the two-stage compression machine host (3) and one-level pressure
Contracting machine host (2) be connected, it is characterised in that the oil free screw formula two-stage air compressor also include one-level aqueous vapor bucket (6) and
Two level aqueous vapor bucket (7), the one-level aqueous vapor bucket (6) are connected with the exhaust outlet of one stage of compression machine host (2), the one-level aqueous vapor bucket
(6) it is connected with one-level water filter (10) in turn between delivery port and the water inlet of one stage of compression machine host (2) and one-level is cold
But device (8), the gas outlet of the one-level aqueous vapor bucket (6) are connected with the air inlet of two-stage compression machine host (3), the two level aqueous vapor
Bucket (7) is connected with the exhaust outlet of two-stage compression machine host (3), the delivery port of the two level aqueous vapor bucket (7) and two-stage compression owner
It is connected with two-stage water filtering device (11) and secondary coolers (9), the one-level aqueous vapor bucket (6) between the water inlet of machine (3) in turn
Delivery port and two-stage compression machine host (3) air inlet between be provided with two level moisturizing magnetic valve (25)；The two-stage compression
Two-stage compression main frame pressure release electromagnetic valve (20) is additionally provided between the air inlet and one-level aqueous vapor bucket (6) of machine host (3).
2. oil free screw formula two-stage air compressor according to claim 1, it is characterised in that the one stage of compression owner
One-level moisturizing magnetic valve (14) and one-level moisturizing water pump are connected with turn between the air inlet and external water source (13) of machine (2)
(15)。
3. oil free screw formula two-stage air compressor according to claim 1 or 2, it is characterised in that the one-level aqueous vapor
One-level aqueous vapor bucket water intaking valve (16), the two level aqueous vapor bucket (7) and external water source are provided between bucket (6) and external water source (13)
(13) two level aqueous vapor bucket water intaking valve (17), and one-level aqueous vapor bucket water intaking valve (16) and two level aqueous vapor bucket water intaking valve are provided between
(17) it is in parallel between.
4. oil free screw formula two-stage air compressor according to claim 3, it is characterised in that the one-level aqueous vapor bucket
(6) one-level aqueous vapor bucket draining valve (18) is connected with, two level aqueous vapor bucket draining valve is connected with the two level aqueous vapor bucket (7)
(19)。
5. oil free screw formula two-stage air compressor according to claim 4, it is characterised in that the one-level aqueous vapor bucket row
Water valve (18) includes one-level drain solenoid valve (181), one-level drain filter (182) and one-level manual drainage valve (183), institute
State one-level drain solenoid valve (181) and one-level drain filter (182) be connected after again with one-level manual drainage valve (183) phase
Parallel connection, the two level aqueous vapor bucket draining valve (19) include Municipal secondary effluent magnetic valve (191), Municipal secondary effluent filter (192) and two
Level manual drainage valve (193), the Municipal secondary effluent magnetic valve (191) and Municipal secondary effluent filter (192) be connected after again with
Two-stage hand water discharging valve (193) is in parallel.
6. oil free screw formula two-stage air compressor according to claim 1 or 2, it is characterised in that the oil free screw
Formula two-stage air compressor also includes air cleaner (5), and the air cleaner (5) is entered with one stage of compression machine host (2)
Gas port is connected, and the two level aqueous vapor bucket (7) is connected with air cleaner (5), and two level aqueous vapor bucket (7) and air cleaner
(5) level two emptying magnetic valve (21) and high-pressure flow regulating valve (22) are provided between.
7. oil free screw formula two-stage air compressor according to claim 1 or 2, it is characterised in that the one-level cooling
Device (8) and secondary coolers (9) are board-like water-cooling cooler.
8. oil free screw formula two-stage air compressor according to claim 1 or 2, it is characterised in that the one-level aqueous vapor
One-level water level controller (23) is connected with bucket (6), two level water level controller (24) is connected with the two level aqueous vapor bucket (7).
9. oil free screw formula two-stage air compressor according to claim 8, it is characterised in that the one-level water level control
Device (23) is identical with two level water level controller (24) structure, and one-level water level controller (23) and two level water level controller (24) wrap
Housing (231) and several Fork LIquid Level Switch (232) are included, the Fork LIquid Level Switch (232) is vertically arranged in housing (231)
Inner chamber in, and Fork LIquid Level Switch (232) have down set and for sensed water level fork body (233), respectively pitch body (233)
Bottom height differ.
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| CN201510917741.0A CN105422453B (en) | 2015-12-10 | 2015-12-10 | A kind of oil free screw formula two-stage air compressor |
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| CN201510917741.0A CN105422453B (en) | 2015-12-10 | 2015-12-10 | A kind of oil free screw formula two-stage air compressor |
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| CN105422453A CN105422453A (en) | 2016-03-23 |
| CN105422453B true CN105422453B (en) | 2017-11-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438364B (en) * | 2016-12-13 | 2018-05-08 | 萨震压缩机（上海）有限公司 | A kind of adjustable two-stage energy-saving air compressor of pressure ratio |
| CN109026685A (en) * | 2018-07-25 | 2018-12-18 | 西安交大思源科技股份有限公司 | Air compressor system is pressed in a kind of water-cooled |
| CN112761948A (en) * | 2021-01-30 | 2021-05-07 | 无锡索贝克精密机械有限公司 | Screw air compressor based on PLC control |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07217580A (en) * | 1994-02-01 | 1995-08-15 | Hitachi Ltd | Two-stage oilless screw compressor |
| JPH09158870A (en) * | 1995-12-07 | 1997-06-17 | Hitachi Ltd | Water-cooled two-stage oil-free screw compressor |
| CN2836068Y (en) * | 2005-10-24 | 2006-11-08 | 珠海市长陆工业自动控制系统有限公司 | Tuning-fork type level switch |
| CN202520561U (en) * | 2011-12-27 | 2012-11-07 | 上海埃尔特压缩空气系统工程有限公司 | Heat recovery system of water cooling oil-free screw air compressor |
| JP5568591B2 (en) * | 2012-05-11 | 2014-08-06 | 株式会社日立産機システム | Oil-free screw compressor |
| JP6078361B2 (en) * | 2013-01-30 | 2017-02-08 | 株式会社日立産機システム | air compressor |
| CN203384051U (en) * | 2013-07-22 | 2014-01-08 | 徐道敏 | Two-stage compression single-screw air compressor |
| CN204061174U (en) * | 2014-05-23 | 2014-12-31 | 英诺伟特（昆山）能源机械有限公司 | Air compressor is pressed in integral type screw rod |
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Effective date of registration: 20180622 Address after: 317106 port town, PUBA Town, three gate County, Taizhou, Zhejiang (industrial agglomeration area) Patentee after: Zhejiang Jieneng Compress Equipment Co., Ltd. Address before: 318000 Tung Chi Yang village, 33 Zhi Zhi street, Jiaojiang District, Taizhou, Zhejiang Patentee before: Xu Daomin |