CN201896732U - Load increasing and reducing device of air compressor - Google Patents
Load increasing and reducing device of air compressor Download PDFInfo
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- CN201896732U CN201896732U CN2010206148391U CN201020614839U CN201896732U CN 201896732 U CN201896732 U CN 201896732U CN 2010206148391 U CN2010206148391 U CN 2010206148391U CN 201020614839 U CN201020614839 U CN 201020614839U CN 201896732 U CN201896732 U CN 201896732U
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Abstract
The utility model provides a load increasing and reducing device of an air compressor, which comprises a port, a gas storage tank, a first electromagnetic valve, a second electromagnetic valve and a control unit. The port is used for being connected with an outlet of the air compressor, the gas storage tank is connected with the port by a pipeline, one end of the first electromagnetic valve is connected to the pipeline while the other end of the first electromagnetic valve is communicated with the atmosphere, one end of the second electromagnetic valve is connected to the gas storage tank, and the control unit is connected with a control end of the first electromagnetic valve and a control end of the second electromagnetic valve and used for controlling a pressure threshold value of the first electromagnetic valve and a pressure threshold value of the second electromagnetic value. The load increasing and reducing device can automatically, flexibly and accurately realize load increase and reduction for the air compressor during durability test of the air compressor.
Description
Technical field
The utility model relates to the testing property field that is used for air compressor and relates to particularly but be not limited to a kind of device that uses in air compressor duty cycle test.
Background technique
Air compressor is the main body in the compressed air source unit, and it is the device that the mechanical energy of prime mover (normally motor) is converted to the gas pressure energy, is compressed-air actuated air pressure generating means.Air compressor can be divided into positive displacement compressor, reciprocal compressor, centrifugal compressor by working principle.The working principle of positive displacement compressor is the volume of pressurized gas, and the density of gas molecule in the per unit volume is increased to improve compressed-air actuated pressure; The working principle of centrifugal compressor is to improve the movement velocity of gas molecule, and the kinetic energy that gas molecule is had is converted into the pressure energy of gas, thereby improves compressed-air actuated pressure.The working principle of reciprocal compressor (also claiming piston compressor) is direct pressurized gas, discharges after gas reaches certain pressure.
Air compressor is widely used in a lot of fields, the starting of for example traditional aerodynamic force, instrument control and automation equipment, car brakeing, air-jet loom, food, pharmaceuticals industry, big marine diesel engine, tunnel test, underpass ventilation, metal smelt, wellfracturing, high-pressure air blasting coal mining, armament systems, submarine sink-float, raising of a wreck, submarine oil exploration, Hovercraft, tyre inflation, spray paint, bottle blowing machine or the like.
Air compressor all will carry out strict testing property to guarantee the reliability of air compressor before product export.These testing propertys are divided into the experiment of dispatching from the factory, sampling experiment and type experiment.The experiment of dispatching from the factory is meant that the experiment of doing at the product of every production, sampling experiment are to be meant the experiment of doing at product newly developed at experiment, type experiment that mass-producted product is done.
Only with regard to the positive displacement air compressor, standard GB/T 3853-1998 " positive displacement compressor acceptance trial ", GB/T 4980-2003 " mensuration of positive displacement Noise of Air Compressor ", GB/T 7777-2003 " the positive displacement compressor mechanical vibration are measured and estimated ", GB/T154877-1995 " positive displacement compressor flow-measuring method " have stipulated the examination experimental technique of positive displacement compressor volume flow, power, noise, vibration, flow.For the air compressor of other types, also there is corresponding national standards to stipulate concrete examination experimental technique.
Especially, air compressor is widely used in the automobile, standard GB/T18297 " motor car engine method for testing performance " has stipulated corresponding test method, and People's Republic of China's automobile industry standard QC/T 29078-92 " automotive air compressor technical specifications " has stipulated term, technical requirements, test method and the inspection rule etc. of automotive air compressor.
Comprise in the performance test that air compressor is carried out the endurance quality of air compressor is tested, for example air compressor is carried out 500 hours endurance test and the performance index before and after the comparative test.In this endurance test process, need air compressor is added load shedding, examine the functional reliability of air compressor.
In the prior art, for the control gear that load shedding does not have automation that adds on the air compressor, but generally adopt uncontrolled device.For example directly air compressor to be measured is connected to gas holder via unloading valve, thereby this air compressor is added load shedding at the nominal pressure place of corresponding unloading valve.Below at itself having unloading valve and itself not having two kinds of air compressors of unloading valve the device that air compressor is added load shedding of the prior art is carried out specifically describing for example.
At first specific explanations itself has the air compressor of unloading valve and does not have two kinds of air compressors of unloading valve.In a single day the air compressor of no unloading valve starts, and air compressor is just ceaselessly operated at full capacity.Contrast with it, when having an air compressor of unloading valve air reaching nominal pressure in gas holder, thereby unloading valve is just opened and is made air compressor enter the no-load run state.
Air compressor for no unloading valve, the loadshedding equipment that adds of prior art directly links to each other with gas holder via the outlet of a unloading valve with nominal pressure threshold value with this air compressor, referring to accompanying drawing 1, the air compressor of the no unloading valve of label 1 representative itself wherein; Label 4 is represented unloading valve, and it has the pressure threshold of demarcation; Label 15 is represented gas holder.In process of the test, when making the air compressor loaded-up, unloading valve (4) cuts out, and the pressure of air compressor outputs to gas holder, has reached the purpose of giving the air compressor application of load; Make not loaded-up of air compressor, have only when the pressure of gas holder reaches the nominal voltage of unloading valve 4, unloading valve 4 is opened, thereby air compressor becomes no-load run.
For the air compressor that unloading valve is installed, the loadshedding equipment that adds of prior art links to each other the outlet of this air compressor with gas holder, and the unloading valve of this air compressor itself is connected with gas holder, referring to accompanying drawing 2, wherein label 1 representative itself has the air compressor of unloading valve, and its unloading valve has the pressure threshold of demarcation; Label 15 is represented gas holder; Wherein the unloading valve of air compressor is connected with gas holder.In process of the test, when making the air compressor loaded-up, the unloading valve of air compressor itself cuts out, and the pressure of air compressor outputs to gas holder, has reached the purpose of giving the air compressor application of load; Make not loaded-up of air compressor, when having only pressure when gas holder to reach the nominal voltage of unloading valve of air compressor itself, unloading valve is opened, thereby air compressor becomes no-load run.
By above-mentioned description for prior art as seen, in the prior art, once the test system of Lian Jieing can only be tested air compressor at the nominal pressure place, thereby executable test pressure is fixing uncontrollable, very dumb, do not have suitability widely.Especially, air compressor for no unloading valve, want at the different pressures place performance of air compressor just tested and to change unloading valve 4 with different nominal pressures, and this is inconvenient, and can't obtain good air-tightness owing to often need to change component, thereby influence the validity of air compressor testing property.Corresponding with it is, for the air compressor that itself has unloading valve, the nominal pressure threshold value of this unloading valve is fixed during owing to produce, thereby can only add load shedding with this fixed pressure, and can't be implemented in other pressure places add the load shedding experiment.In addition, adopt the said method of prior art, whether the performance that tester can't be known each parts is normal, and as the working state of each valve, whether it is aging malfunctioning etc., and these reasons also can cause test result inaccurate even bring serious potential safety hazard.
The model utility content
In order to overcome the above-mentioned problems in the prior art, the utility model provides a kind of air compressor to add loadshedding equipment.
According to an embodiment of the present utility model, provide a kind of air compressor to add loadshedding equipment, it is characterized in that, comprising: be used for the interface that is connected with the outlet of air compressor; Gas holder, it links to each other by pipeline with above-mentioned interface; First solenoid valve, the one end is connected to this pipeline, and its other end leads to atmosphere; And control unit, link to each other with the control end of this first solenoid valve, thereby be used for the pressure threshold that the pressure threshold of this first solenoid valve is controlled with control is added load shedding to this air compressor.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, this air compressor is the air compressor of no unloading valve own.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with pressure transducer and temperature transducer in this pipeline, and this pressure transducer and temperature transducer are connected respectively to control unit.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this gas holder, and this temperature transducer and pressure transducer are connected respectively to control unit.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, contiguous this interface is connected with exsiccator in this pipeline.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, is connected with safe unloading valve and one-way valve in this pipeline, and wherein has blowdown valve, safety valve and pressure gauge at this gas holder.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with in flowmeter, sound level meter, vibration transducer, the level meter at least one in this pipeline.
According to another embodiment of the present utility model, provide a kind of air compressor to add loadshedding equipment, it is characterized in that, comprising: be used for the interface that is connected with the outlet of air compressor; Gas holder, it links to each other by pipeline with above-mentioned interface; Second solenoid valve, one end are connected to the unloading valve that this gas holder and its other end be used for air compressor itself and link to each other; And control unit, link to each other with the control end of this second solenoid valve, thereby be used for the pressure threshold that the pressure threshold of this second solenoid valve is controlled with control is added load shedding to this air compressor.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that this air compressor is for itself having the air compressor of unloading valve.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this pipeline, and this temperature transducer and pressure transducer are connected respectively to control unit.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this gas holder, and this temperature transducer and pressure transducer are connected respectively to control unit.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, contiguous this interface is connected with exsiccator in this pipeline.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, is connected with safe unloading valve and one-way valve in this pipeline.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, has blowdown valve, safety valve and pressure gauge at this gas holder.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, wherein also is connected with in flowmeter, sound level meter, vibration transducer, the level meter at least one in this pipeline.
According to another embodiment of the present utility model, provide a kind of air compressor to add loadshedding equipment, it is characterized in that, comprising: be used for the interface that is connected with the outlet of air compressor; Gas holder, it links to each other by pipeline with above-mentioned interface; First solenoid valve, the one end is connected to this pipeline, and its other end leads to atmosphere; Second solenoid valve, the one end is connected to this gas holder; And control unit, link to each other with the control end of this first solenoid valve and the control end of this second solenoid valve, be used for the pressure threshold of this first solenoid valve and the pressure threshold of this second solenoid valve are controlled.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, if this air compressor is the air compressor of no unloading valve own, then the pressure threshold with first solenoid valve adds load shedding to this air compressor.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, if this air compressor is for itself having the air compressor of unloading valve, then the unloading valve with this air compressor itself links to each other with the other end of this second unloading valve, and with the pressure threshold of second solenoid valve this air compressor is added load shedding.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this pipeline, and this temperature transducer and pressure transducer are connected respectively to control unit.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this gas holder, and this temperature transducer and pressure transducer are connected respectively to control unit.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, contiguous this interface is connected with exsiccator in this pipeline.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, is connected with safe unloading valve and one-way valve in this pipeline.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, has blowdown valve, safety valve and pressure gauge at this gas holder.
Air compressor according to a preferred embodiment of the present utility model adds loadshedding equipment, it is characterized in that, also is connected with in flowmeter, sound level meter, vibration transducer, the level meter at least one in this pipeline.
Add loadshedding equipment according to air compressor of the present utility model and can in endurance test, accurately add load shedding flexibly automatically air compressor to air compressor, examine the functional reliability of air compressor, finish reliability trial air compressor.The use of this device by the reliability of air compressor real work is verified, has improved the rationality of complete machine coupling.
Description of drawings
Only provide description referring now to the following drawings by example:
Fig. 1 illustrates the simplified structure schematic representation that adds loadshedding equipment in the prior art for the air compressor of no unloading valve;
Fig. 2 illustrates the simplified structure schematic representation that adds loadshedding equipment in the prior art for the air compressor with unloading valve;
Fig. 3 illustrates the structural representation that adds the device of load shedding according to an embodiment's of the present utility model air compressor to no unloading valve;
Fig. 4 illustrates the structural representation that adds the device of load shedding according to another embodiment's of the present utility model air compressor to having unloading valve;
Fig. 5 illustrates according to another embodiment of the present utility model no unloading valve or air compressor with unloading valve to be added the structural representation of the device of load shedding.
Embodiment
Below in conjunction with embodiment structure and working principle that air compressor of the present utility model adds loadshedding equipment are carried out concrete description.The utility model is applicable to various air compressors, is specially adapted to the motor air compressor.
First embodiment
Fig. 3 is the structural representation that automatically air compressor of no unloading valve is added the device of load shedding that illustrates according to embodiment of the present utility model.At first the gas through air compressor 1 compression of no unloading valve carries out drying by drying device 2, enter pipeline with effectively anti-sealing wet goods, problems such as the minimizing pipeline blockage is obstructed, and this exsiccator also has the pressure regulatory function so that the gas that passes through remains in a pressure stable; Then gather the pressure and temperature tolerance of gas in the pipeline respectively by pressure transducer 10, temperature transducer 11; Then, pipeline divides to threeway, gas medium is divided into two-way here, one the road is connected to an end of solenoid valve 3, the other end of this solenoid valve 3 leads to atmosphere, and the control end of this solenoid valve 3 links to each other with control unit 14, in order to set the pressure threshold of solenoid valve 3, at this pressure place air compressor is added load shedding automatically; Another road is connected to unloading valve 4, and unloading valve 4 is a pressure protective device, when loine pressure surpasses secure threshold pipeline is reduced pressure; Connect one-way valve 5 behind the unloading valve 4, it is used to prevent gas backstreaming, thereby guarantees the complete machine state; Last one-way valve 5 connects gas holder 15; Setting pressure table 9 on the gas holder is with pressure real-time measuring and the demonstration to gas holder; Safety valve 8 is used for timely discharge pressure when gas holder surpasses safety pressure, guarantees security of system; Blowdown valve 6 is used for discharging water, the wet goods material of gas holder, the unobstructed safe operation of assurance system; Pressure transducer 12, temperature transducer 13 etc. also are installed on the gas holder gather the pressure and temperature tolerance of gas holder respectively, be convenient to the control personnel and grasp state in the gas holder; Control unit 14 can with above-mentioned pressure transducer 10 with 12 and temperature transducer 11 link to each other with 13, monitor in real time pipeline and jar in pressure and temperature.Can control solenoid valve (3) by control unit, adjust the pressure threshold of this this solenoid valve neatly.
Below carry out the specific operation explanation at the situation of the inner no unloading valve of air compressor itself.Usually, when adding and subtracting Road test, can control the off-load operating mode of air compressor by solenoid valve 3.Particularly, in normal process of the test, when making the air compressor loaded-up, solenoid valve 3 cuts out, air compressor pressure outputs to gas holder, determines constant compression force value in the gas holder by the safety valve on unloading valve and the gas holder, has reached the purpose of giving the air compressor application of load; In order to make not loaded-up of air compressor, in normal conditions, rely on the nominal pressure of unloading valve 4.For example, the nominal pressure that this air compressor adds the unloading valve 4 of loadshedding equipment is 8 kilograms, and when promptly the pressure at the unloading valve place is 8 kilograms, this valve just will be opened, and air compressor is just with the not work of on-load.In the present embodiment, this air compressor links to each other via solenoid valve 3 with gas holder, so just can set flexibly by the pressure threshold of 14 pairs of solenoid valves 3 of control unit, such as at above-mentioned air compressor, the pressure threshold of solenoid valve 3 can be made as 7.5 kilograms, air pressure in gas holder is below 7.5 kilograms the time thus, and solenoid valve 3 is for what cut out, and air compressor continues loaded-up.And when pressure reached 7.5 kilograms, solenoid valve 3 was opened, not on-load ground work of air compressor.Then, can also the pressure threshold of solenoid valve 3 be adjusted to 7 kilograms, 6.5 kilograms etc., realize air compressor is added the flexible control of load shedding thus by control unit 14.
Second embodiment
Fig. 4 is the structural representation that automatically air compressor that has unloading valve is added the device of load shedding that illustrates according to embodiment of the present utility model.Compare with Fig. 3, same or analogous parts are denoted by the same reference numerals and omit being repeated in this description of its correspondence.Second embodiment and first embodiment's difference be following some:
One, the air compressor 1 in the device of Fig. 4 is the air compressor that has unloading valve, and during pressure below this unloading valve is in the nominal pressure threshold value, unloading valve cuts out, the air compressor loaded-up; And when this unloading valve was in nominal pressure threshold value or above pressure, this unloading valve was opened, and air compressor is loaded-up not.
Two, do not have in the device of Fig. 4 solenoid valve 3 from rather than by add load shedding control automatically at 3 pairs of air compressors of solenoid valve.
Three, the solenoid valve 7 that has gas holder in the device of Fig. 4, one end of this solenoid valve is connected to gas holder, the other end links to each other with the unloading valve of air compressor itself, and the control end of this solenoid valve is connected to control unit, and control unit can carry out convenient and flexible control to the pressure threshold of solenoid valve 7.
Below have a unloading valve at air compressor itself situation carry out the specific operation explanation.Usually, when adding and subtracting Road test,, so just can control the off-load operating mode of air compressor by solenoid valve 7 owing to the unloading valve that one of solenoid valve 7 is terminated to air compressor itself.Particularly, in normal process of the test, when making the air compressor loaded-up, the unloading valve of solenoid valve 7 and air compressor itself cuts out, air compressor pressure outputs to gas holder, determine constant compression force value in the gas holder by the safety valve on unloading valve and the jar, reached the purpose of giving the air compressor application of load; Make not loaded-up of air compressor, will be in normal conditions according to the pressure threshold of the unloading valve of air compressor itself.For example, the unloading valve of air compressor itself is directly connected to gas holder, and the nominal pressure of unloading valve of this air compressor itself is 7 kilograms, also is that the pressure at unloading valve place is when being 7 kilograms at the pressure of gas holder promptly, this valve just will be opened, and air compressor is just with the not work of on-load.In the present embodiment, the unloading valve of this air compressor itself links to each other with solenoid valve 7 on the gas holder, so just can set flexibly by the pressure threshold of 14 pairs of solenoid valves 7 of control unit, such as at above-mentioned air compressor, the pressure threshold of solenoid valve 7 can be made as 7.5 kilograms, air pressure in gas holder is below 7.5 kilograms the time thus, solenoid valve 7 is what cut out, the unloading valve of air compressor itself can not be under the pressure of gas holder, thereby being still closedly, air compressor continues loaded-up.And when the pressure of gas holder reaches 7.5 kilograms, solenoid valve 7 is opened, thereby makes the unloading valve of air compressor itself be in the pressure of gas holder, promptly under 7.5 kilograms the pressure, the unloading valve of air compressor itself is opened, not on-load ground work of air compressor.Then, can also the pressure threshold of solenoid valve 7 be adjusted to 8 kilograms, 8.5 kilograms etc., realize air compressor is added the flexible control of load shedding thus by control unit 14.
The 3rd embodiment
The air compressor that Fig. 5 shows the 3rd embodiment of the present utility model adds loadshedding equipment, and its air compressor that both can be used to not have unloading valve also can be used to have the air compressor of unloading valve.Please note with above-mentioned in conjunction with the accompanying drawings 3 and first embodiment shown in Figure 4 and second embodiment corresponding, identical or corresponding techniques feature is represented with identical label, and omits being repeated in this description for them.Therefore this shows that air compressor shown in Figure 5 adds loadshedding equipment and not only comprises solenoid valve 3 but also comprise solenoid valve 7, can realize adding neatly automatically load shedding at the air compressor of no unloading valve and air compressor with unloading valve.
In normal process of the test, when making the air compressor loaded-up, solenoid valve 3 cuts out, and air compressor pressure outputs to gas holder, determine constant compression force value in the gas holder by the safety valve on unloading valve and the jar, reached the purpose of giving the air compressor application of load; Make not loaded-up of air compressor, see the structure of air compressor determines how to control; A. the inside of air compressor own has unloading valve, the outlet of solenoid valve 7 be received air compressor unloading valve ingress, so just can control air compressor off-load operating mode by solenoid valve 7; B. air compressor itself will be controlled the off-load operating mode of air compressor by solenoid valve 3 not with unloading valve.
In addition pressure transducer in the utility model and temperature transducer can signal piping and gas holder in the temperature and pressure situation, and on control unit, show, with information to tester's generator working state, make the tester effectively air pressure and the temperature of detection device inside, thereby normally whether the function of decision means early, the proper operation of assurance device.
Further, actual demand according to different device, can also add other sensor, for example flowmeter, sound level meter, vibration transducer, level meter or the like, with further monitoring system working condition accurately, and measure when realizing other parameter indexs of air compressor testing property.
The claimant discloses any combination of each individual characteristics described herein and two or how such feature in view of the above individually, thus no matter such feature or whether characteristics combination solves any problem disclosed herein and can realize such feature or combination based on this specification as a whole according to those skilled in the art's common practise under the situation that does not limit the claim scope.The claimant represents that many aspects of the present utility model can comprise any such feature or combination of features.Describe in view of preamble, those skilled in the art will know can carry out various modifications in scope of the present utility model.
Although illustrated and described and pointed out of the present utility model as be applied to the essence novel feature of its preferred embodiment, will understand those skilled in the art and can carry out various omissions and replacement and the change and do not break away from spirit of the present utility model in form and details of described apparatus and method.For example be intended to clearly to allow with same way as in fact carry out identical function in fact with all combinations of those unit of realizing identical result and/or method step all in scope of the present utility model.Will be appreciated that in addition the structure that illustrates and/or describe in conjunction with any open form of the present utility model or embodiment and/or unit and/or method step as general design alternative item can be incorporated into any other open or describe or the form or embodiment of suggestion in.Therefore the utility model only is subjected to as the indicated restriction of the scope of claims.
Claims (24)
1. an air compressor adds loadshedding equipment, it is characterized in that, comprising:
Be used for the interface that is connected with the outlet of air compressor;
Gas holder, it links to each other by pipeline with above-mentioned interface;
First solenoid valve, the one end is connected to this pipeline, and its other end leads to atmosphere; And
Control unit links to each other with the control end of this first solenoid valve, thereby is used for the pressure threshold that the pressure threshold of this first solenoid valve is controlled with control is added load shedding to this air compressor.
2. air compressor according to claim 1 adds loadshedding equipment, it is characterized in that, this air compressor is the air compressor of no unloading valve own.
3. air compressor according to claim 1 adds loadshedding equipment, it is characterized in that, also is connected with pressure transducer and temperature transducer in this pipeline, and this pressure transducer and temperature transducer are connected respectively to control unit.
4. air compressor according to claim 1 adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this gas holder, and this temperature transducer and pressure transducer are connected respectively to control unit.
5. air compressor according to claim 1 adds loadshedding equipment, it is characterized in that, contiguous this interface is connected with exsiccator in this pipeline.
6. air compressor according to claim 1 adds loadshedding equipment, it is characterized in that, is connected with safe unloading valve and one-way valve in this pipeline, and wherein has blowdown valve, safety valve and pressure gauge at this gas holder.
7. add loadshedding equipment according to any one described air compressor of claim 1 to 6, it is characterized in that, in this pipeline, also be connected with in flowmeter, sound level meter, vibration transducer, the level meter at least one.
8. an air compressor adds loadshedding equipment, it is characterized in that, comprising:
Be used for the interface that is connected with the outlet of air compressor;
Gas holder, it links to each other by pipeline with above-mentioned interface;
Second solenoid valve, one end are connected to the unloading valve that this gas holder and its other end be used for air compressor itself and link to each other; And
Control unit links to each other with the control end of this second solenoid valve, thereby is used for the pressure threshold that the pressure threshold of this second solenoid valve is controlled with control is added load shedding to this air compressor.
9. air compressor according to claim 8 adds loadshedding equipment, it is characterized in that, this air compressor is for itself having the air compressor of unloading valve.
10. air compressor according to claim 8 adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this pipeline, and this temperature transducer and pressure transducer are connected respectively to control unit.
11. air compressor according to claim 8 adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this gas holder, this temperature transducer and pressure transducer are connected respectively to control unit.
12. air compressor according to claim 8 adds loadshedding equipment, it is characterized in that, contiguous this interface is connected with exsiccator in this pipeline.
13. air compressor according to claim 8 adds loadshedding equipment, it is characterized in that, is connected with safe unloading valve and one-way valve in this pipeline.
14. air compressor according to claim 8 adds loadshedding equipment, it is characterized in that, has blowdown valve, safety valve and pressure gauge at this gas holder.
15. any one described air compressor adds loadshedding equipment according to Claim 8-14, wherein also is connected with in flowmeter, sound level meter, vibration transducer, the level meter at least one in this pipeline.
16. an air compressor adds loadshedding equipment, it is characterized in that, comprising:
Be used for the interface that is connected with the outlet of air compressor;
Gas holder, it links to each other by pipeline with above-mentioned interface;
First solenoid valve, the one end is connected to this pipeline, and its other end leads to atmosphere;
Second solenoid valve, the one end is connected to this gas holder; And
Control unit links to each other with the control end of this first solenoid valve and the control end of this second solenoid valve, is used for the pressure threshold of this first solenoid valve and the pressure threshold of this second solenoid valve are controlled.
17. air compressor according to claim 16 adds loadshedding equipment, it is characterized in that, if this air compressor is the air compressor of no unloading valve own, then the pressure threshold with first solenoid valve adds load shedding to this air compressor.
18. air compressor according to claim 16 adds loadshedding equipment, it is characterized in that, if this air compressor is for itself having the air compressor of unloading valve, then the unloading valve with this air compressor itself links to each other with the other end of this second unloading valve, and with the pressure threshold of second solenoid valve this air compressor is added load shedding.
19. air compressor according to claim 16 adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this pipeline, this temperature transducer and pressure transducer are connected respectively to control unit.
20. air compressor according to claim 16 adds loadshedding equipment, it is characterized in that, also is connected with temperature transducer and pressure transducer in this gas holder, this temperature transducer and pressure transducer are connected respectively to control unit.
21. air compressor according to claim 16 adds loadshedding equipment, it is characterized in that, contiguous this interface is connected with exsiccator in this pipeline.
22. air compressor according to claim 16 adds loadshedding equipment, it is characterized in that, is connected with safe unloading valve and one-way valve in this pipeline.
23. air compressor according to claim 16 adds loadshedding equipment, it is characterized in that, has blowdown valve, safety valve and pressure gauge at this gas holder.
24. add loadshedding equipment according to any one described air compressor of claim 16-23, it is characterized in that, in this pipeline, also be connected with in flowmeter, sound level meter, vibration transducer, the level meter at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206148391U CN201896732U (en) | 2010-11-16 | 2010-11-16 | Load increasing and reducing device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206148391U CN201896732U (en) | 2010-11-16 | 2010-11-16 | Load increasing and reducing device of air compressor |
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| CN201896732U true CN201896732U (en) | 2011-07-13 |
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| CN2010206148391U Expired - Lifetime CN201896732U (en) | 2010-11-16 | 2010-11-16 | Load increasing and reducing device of air compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984256A (en) * | 2010-11-16 | 2011-03-09 | 潍柴动力股份有限公司 | Load increasing and reducing device of air compressor |
| CN102777371A (en) * | 2012-07-19 | 2012-11-14 | 奇瑞汽车股份有限公司 | Durability test mechanism and durability test method for vehicle vacuum pump |
| CN104760501A (en) * | 2015-03-20 | 2015-07-08 | 十堰正远工贸有限公司 | Vehicle-mounted gas-electricity output system |
| CN104806497A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Control method and control device of compressor |
-
2010
- 2010-11-16 CN CN2010206148391U patent/CN201896732U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984256A (en) * | 2010-11-16 | 2011-03-09 | 潍柴动力股份有限公司 | Load increasing and reducing device of air compressor |
| CN102777371A (en) * | 2012-07-19 | 2012-11-14 | 奇瑞汽车股份有限公司 | Durability test mechanism and durability test method for vehicle vacuum pump |
| CN102777371B (en) * | 2012-07-19 | 2015-11-25 | 奇瑞汽车股份有限公司 | A kind of endurance test mechanism of vehicle vacuum pump and durability test method thereof |
| CN104806497A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Control method and control device of compressor |
| CN104760501A (en) * | 2015-03-20 | 2015-07-08 | 十堰正远工贸有限公司 | Vehicle-mounted gas-electricity output system |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20110713 Effective date of abandoning: 20121003 |