CN103527447A - Drain discharge device and air compressor - Google Patents
Drain discharge device and air compressor Download PDFInfo
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- CN103527447A CN103527447A CN201310281995.9A CN201310281995A CN103527447A CN 103527447 A CN103527447 A CN 103527447A CN 201310281995 A CN201310281995 A CN 201310281995A CN 103527447 A CN103527447 A CN 103527447A
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Abstract
The invention provides a drain discharge device and an air compressor which can stably discharge drain even under the condition of low outer atmospheric temperature. The drain discharge device comprises: a drain discharge path (13) connected with a drain separator (7) for separating drain from compressed air; a drain automatic discharge valve (8) mounted in the drain discharge path; a heating element (11) for heating the drain automatic discharge valve and the drain discharge path; and a control panel (14) for performing open-close control on the drain automatic discharge valve and performing heating control on the heating element. During the open-close control of the drain automatic discharge valve, if a current value is not in a range of normal values, the heating element is rapidly heated while performing the open-close control of the drain automatic discharge valve. If the current value does not return to the range of normal values within a judging time, it is judged that a fault happens, and if the current value returns to the range of normal values within the judging time, it is judged that a freeze happens.
Description
Technical field
The present invention relates to draining discharger and air compressor.
Background technique
As freezing relevant open example to the draining that prevents of existing air compressor, as the mode of patent documentation 1 set temperature sensor in drainage outbound path, the temperature that starts to freeze lower than draining in the detected temperatures of temperature transducer makes the automatic expulsion valve action of draining 2 ℃ time, draining is forced to discharge in drainage outbound path, and, the valve of the automatic expulsion valve of draining is opened and closed to interval and change to than shorter interval conventionally, by making the temperature of draining be not less than 2 ℃, realize and prevent that draining from freezing.In addition, as the mode of patent documentation 2, disclose pressure transducer and temperature transducer are set on drainage outbound path, utilize temperature variation, the pressure of valve before and after opening and closing to change in the situation that the situation that draining is freezed and the difference do not freezed detect draining and discharge abnormal device.
Prior art document
Patent documentation 1: TOHKEMY 2005-42823 communique
Patent documentation 2: TOHKEMY 2009-56394 communique
Summary of the invention
The problem solving is wanted in invention
Conventionally, in air compressor, via the compressed owner's body compression of air of suction throttle valve suction, become the pressurized air of high temperature, therefore, aftercooler) etc. for example, by recoler (after cooler: cooler makes pressurized air and freezing mixture (ambient atmosphere, water) carry out heat exchange, thus, pressure-air cooling is arrived to ℃ left and right, outer atmospheric temperature+15.When pressurized air is cooled, the contained water vapour of air is condensing and draining occurs.Therefore, as required, draining segregating unit is set in the downstream side of cooler and carrys out separated occurred draining.
Separated draining for example in draining segregating unit after temporary transient storage, after certain hour or store a certain amount of after, be discharged from termly.The discharge of draining is generally used as draining expulsion valve that automatic expulsion valve is set, and according to draining growing amount, opens and closes valve, the method for automatically discharging thus.
If draining is freezed in the automatic expulsion valve of draining, drainage outbound path, draining becomes and can not automatically discharge and sneak into pressurized air, therefore, becomes and usings the reason of pressurized air as the fault of the machine of power source.Therefore, conventionally make the automatic expulsion valve of draining according to the action of the growing amount of draining, temperature, or action when running stops, in stopping, not residual draining etc. in drainage outbound path, by discharging before freezing in draining, realizes and prevents from freezing.
In patent documentation 1, narrated control by making the action of the automatic expulsion valve of draining force to discharge when running stops, for example, in the control that becomes pressure discharge when following of temperature (2 ℃) that draining starts to freeze, in drainage outbound path, before freezing, draining discharges, realization prevents the method for freezing thus, has narrated the abnormal method of discharge that the temperature variation, the pressure that utilize valve to open and close front and back change to detect draining in patent documentation 2.But, in above-mentioned prior art, the problem below air compressor exists under low temperature environment when discharging the draining being generated by draining separating mechanism.
When opening the automatic expulsion valve of draining, draining is discharged from and the pressurized air of trace is also discharged together.At this pressurized air during by the automatic expulsion valve of draining, pressurized air reduces because of heat insulation expansion temperature, therefore, air compressor is in the situation that repeat the automatic discharge of draining under low temperature environment, the temperature of the drainage outbound path in the automatic expulsion valve of draining, its downstream side is for example reduced to, below the freezing temperature (2 ℃) of draining because of compressed-air actuated heat insulation expansion, the problem that exists draining to freeze in drainage outbound path.
In addition, in draining during by the automatic expulsion valve of draining, because of compressed-air actuated volumetric expansion sharply from aqueous be changed to vaporific.Vaporific draining is very easy to freeze, and according to circumstances and instantaneously freezes.Therefore, in the temperature of the drainage outbound path in the automatic expulsion valve of draining, its downstream side, be reduced to the freezing temperature of draining when following, exist vaporific draining to freeze, the automatic expulsion valve akinesia of draining, the problem that can not carry out the discharge and so on of draining.
And then, in the situation that can not carry out the discharge of draining, do not judge simply that its reason is fault or the bad method of action because freezing to cause of the automatic expulsion valve of draining self, except decomposing drainage outbound path, the automatic expulsion valve of draining etc., directly confirmation, there is no method.
The present invention completes in view of above problem, and its object is, even if a kind of air compressor that also can stablize the draining automatic discharge device of the discharge of carrying out draining and be equipped with this device under the low operating condition of outer atmospheric temperature is provided.
For solving the technological scheme of problem
In order to reach above-mentioned purpose, draining automatic discharge device of the present invention adopts following structure.First aspect provides a kind of draining automatic discharge device, it is characterized in that possessing: drainage outbound path, and it links with the draining separator from the separated draining of pressurized air; The automatic expulsion valve of draining, it is installed on this drainage outbound path; Heater, it heats above-mentioned drainage outbound path and the automatic expulsion valve of above-mentioned draining; Control substrate, it carries out the heat control that adds of the open and close controlling of the automatic expulsion valve of above-mentioned draining and above-mentioned heater,
Current value when the open and close controlling of the automatic expulsion valve of above-mentioned draining is in the situation that outside the scope of predetermined normal value, carry out the above-mentioned heater of instant heating, and carry out the open and close controlling of the automatic expulsion valve of above-mentioned draining, in the situation that above-mentioned current value returns in the scope of above-mentioned normal value within the judgement time, be not judged to be and break down.
Second aspect is characterised in that, in the situation that above-mentioned current value returns in the scope of above-mentioned normal value and is judged to be and freezes in the judgement time.
In above-mentioned judgement, the identifying unit of the open and-shut mode of judging the automatic expulsion valve of draining is set as required, carry out fault verification and freeze judging.
In addition, air compressor of the present invention is characterised in that, possess above-mentioned draining automatic discharge device, be more preferably for example judged to be the running that maintains air compressor freeze in the situation that, be judged to be the running that stops air compressor breaking down in the situation that.
Invention effect
According to the present invention, even if a kind of air compressor that also can carry out the discharge of stable draining under the low operating condition of outer atmospheric temperature can be provided.
Problem outside above-mentioned, formation and effect describe by following mode of execution.
Accompanying drawing explanation
Fig. 1 is embodiment 1 the pie graph that possesses the air compressor of draining automatic discharge device.
Fig. 2 means the figure of the relation that running is controlled.
Fig. 3 is the flow chart that running is controlled.
Fig. 4 is embodiment 2 the pie graph that possesses the air compressor of draining automatic discharge device.
Description of reference numerals
1: compressor main body, 2: suction throttle valve, 3: filter by suction, 4: suction pipe, 5: discharged air path, 6: compressed air cooler, 7: draining separator, 8: the automatic expulsion valve of draining, 9: the manual expulsion valve of draining, 10: temperature transducer, 11: heater, 12: thermal-protective material, 13: drainage outbound path, 14: control substrate, 14a: temperature detection temperature is adjusted control circuit, 14b: valve opens and closes and detects valve open and close controlling circuit, 14c: the automatic decision circuit of valve events state, 15: abnormity notifying unit, 16: identifying unit.
Embodiment
Represent embodiments of the present invention, and specific embodiment is described.Embodiment shown below is draining discharger and air compressor, can not hold simply freezing or fault and freezing in the situation that there is problem during the discharge of draining because of the automatic expulsion valve of draining of the automatic expulsion valve of draining, also can not stop the running of air compressor, and the draining of can automatically thawing is remained in operation.
[embodiment 1]
Use Fig. 1 that the first embodiment of the present invention is described.Fig. 1 is embodiment 1 the hardware structure diagram that possesses the air compressor of draining automatic discharge device.
In air compressor, via filter by suction 3, suction pipe 4, suction throttle valve 2 and be inhaled into the air of compressor main body 1 by pipeline a interior compressed in above-mentioned compressor main body 1, become the pressurized air of high temperature.
For example in the situation that the air of 25 ℃ of outer atmospheric temperatures is compressed to 0.7MPa from barometric pressure, compressed-air actuated temperature rises to 80～100 ℃ in the situation that of oil-cooled air compressor.In addition, the in the situation that of oil-free air compressor, from higher 170 ℃, rise to 300 ℃.Afterwards, the pressurized air of high temperature that passes out to ejection air path 5 from compressor main body 1 is cooled to ℃ left and right, outer atmospheric temperature+15 by compressed air cooler 6.Now, due in the interior generation draining of compressed air cooler 6, so by draining separator 7 by draining after separating, pressurized air is sent outside machine, draining is discharged from via drainage outbound path 13.
The driving power supply of the automatic expulsion valve 8 of draining is ac power supply, and the operating state of the automatic expulsion valve 8 of draining by judging by controlling substrate 14 detection current values when to automatic expulsion valve 8 energising of draining.
Particularly, utilization is in the situation that the situation of the regular event characteristic different with the current value of malfunction during to 8 energising of the automatic expulsion valve of draining, the situation of current value during current value regular event when detecting to 8 energising of the automatic expulsion valve of draining is judged to be normally, and it is abnormal that the situation of the current value that current value when detecting from regular event is different is judged to be valve.
In addition, the position that preferably temperature reduces the soonest on drainage outbound path by the repetition of draining discharging operation, position of temperature transducer 10 detected temperatures, particularly, be compressed the automatic expulsion valve 8 of the impact draining that temperature reduces the soonest on drainage outbound path of heat insulation expansion of air or the discharge path in the downstream side of the automatic expulsion valve 8 of draining is strong.
And, the automatic expulsion valve 8 of draining freeze fault verification, current value when detecting to automatic expulsion valve 8 energising of draining, after the heated condition that also detects heater 11 switches to instant heating, whether passed through certain hour, by combining these testing results, carried out as follows.
That is,, in the situation that the current value during independently to automatic expulsion valve 8 energising of draining is normal value with the heated condition of heater 11, be judged to be regular event.In addition, in heater 11 heating stops, conventionally add hanker or starts instant heating after for example, in the situation that the current value while switching on to the automatic expulsion valve 8 of draining under the condition below certain hour (60 seconds) is exceptional value, be judged to be and freeze.In addition, even in the situation that heater 11 current value while for example starting after instant heatings, through certain hour (60 seconds) to automatic expulsion valve 8 energising of draining is also exceptional value, is judged to be and breaks down.
These judgements are undertaken by controlling substrate 14.Controlling substrate 14 has: the heating control circuit 14a of heater 11; The valve of the automatic expulsion valve 8 of draining opens and closes and detects valve open and close controlling circuit 14b; With the automatic decision circuit 14c of valve events state of the automatic expulsion valve 8 of draining, judge the operating state of the automatic expulsion valve 8 of draining, and based on its result of determination, control the switching of the heating of heater 11 and the valve of the automatic expulsion valve 8 of draining.
The fault verification that freezes based on the automatic expulsion valve 8 of above-mentioned draining, draining is discharged to thaw to control and is carried out as follows.
In the situation that result of determination is regular event, the heating of heater 11 is with being controlled to be set in the control lower limit temperature of substrate 14 and the mode of upper limiting temperature α holding temperature by common heating of previously having narrated, and valve opens and closes also and for example, undertaken by common draining discharge control (close for 40 seconds, open for 2 seconds).
In result of determination, for freeze in the situation that, use the abnormity notifying unit 15 of being located at air compressor to the freezing of the automatic expulsion valve 8 of external notification draining, draining is discharged to control and change to the draining control of thawing.; the heat control that adds of heater 11 is stopped switching to instant heating with the heat control that adds of heating conventionally from repeating common heating; carry out thawing of freezed draining; simultaneously; further the switching of valve is used to the mode switching controls of for example, carrying out than Geng Duan interval, common interval (close for 10 seconds, open for 1 second); for example, during certain hour (60 seconds), carry out draining and thaw and control until be judged to be regular event or be judged to be and break down.
Even by this draining, thaw control and after making air compressor long time running stop under low temperature environment again running in the situation that, on-stream draining occurs in the automatic expulsion valve 8 of draining and freeze in the situation that, also can not stop the running of air compressor and carry out thawing of draining, can return to the fast as far as possible stage the automatic discharge of draining.
In the situation that result of determination breaks down for judging, by the heating of heater 11 from instant heating switch to that Repeat-heating stops and conventionally heating common add heat control, realize drainage outbound path 13 integral body draining freeze prevent, stop the running of air compressor simultaneously, take to use and be located at the mode that the abnormity notifying unit 15 of air compressor is fault to the automatic expulsion valve 8 of external notification draining and control.
By comprise draining as aforesaid way, discharging the running of the control of thawing controls, as long as the automatic expulsion valve 8 of draining does not have fault, just can under low temperature environment, continue the running of air compressor, even in the situation that draining can not be discharged automatically just in case the automatic expulsion valve 8 of draining breaks down, investigating of failure cause also becomes easily, can take suitable correspondence fast.
The concrete example of above-mentioned control is described with reference to Fig. 2～Fig. 3.As already described mode, drainage outbound path 13, the automatic expulsion valve 8 of draining and the manual expulsion valve 9 of draining are covered by heater 11 and thermal-protective material 12, and are provided with temperature transducer 10 on the automatic expulsion valve 8 of draining.And the judgement of the operating state that adds heat control and valve of the switching detection of the automatic expulsion valve 8 of draining and open and close controlling, heater 11 is undertaken by controlling substrate 14.
About the heating of heater 11, as aforesaid way is set heating and 2 heated conditions of instant heating conventionally.Conventionally heating, based on the detected temperature of temperature transducer 10, is carried out when temperature is controlled using in being set in the control lower limit temperature of substrate 14 and the scope of upper limiting temperature a.Its objective is for the draining in the automatic expulsion valve 8 of draining, drainage outbound path 13 is not freezed.On the other hand, instant heating is in the situation that become the operating state of the automatic expulsion valve 8 of draining to judge that the freezed draining of thawing while freezing used by controlling substrate 14.Particularly, for example, in certain hour (between 60 seconds), to be heated to the mode of the second upper limiting temperature β higher than the first upper limiting temperature α, carry out when temperature is controlled using.In addition, when subsidiary theory becomes being related to of each setting temperature of benchmark, lower limit temperature < upper limiting temperature α < upper limiting temperature β.
Air compressor is controlled running according to consumed cabin air amount, and still, when the running of air compressor starts, draining is discharged to control and also carried out simultaneously.Below, suitably with reference to Fig. 2～Fig. 3, describe.
As shown in Figure 2, in the present embodiment, start to carry out initial draining with running simultaneously and discharge control.Now, detect the current value of the automatic expulsion valve 8 of draining, determine whether it is regular event (with reference to S101～S102 of Fig. 3).In the scope of " regular event judges 1 " shown in Fig. 2, current detection value is normal value, therefore, is judged to be normal (S102) in S101, carries out common draining and discharges control.In this embodiment, heater 11 heating stop, and the automatic expulsion valve 8 of draining is controlled (with reference to S103) in every mode of driving valve for 40 seconds.
In addition, current detection value be whether the normal value value of being not only this as consistent situation, but also predetermine the scope that can be judged as normal value, judge whether to converge within the scope of this and be suitable for preventing that erroneous judgement is disconnected.
In addition, the valve of the automatic expulsion valve 8 of draining opens and closes interval also can be changed according to draining growing amount, and as shown in the present embodiment explanation, also carry out (for example every 40 seconds) at certain intervals.
Heater 11 heats and stops after the running of air compressor starts, in the situation that heater 11 heating stop, the detected temperatures of temperature transducer 10, when lower limit temperature is above, continues to stop heating (with reference to S104 → S108), when lower limit temperature is following, start heating (with reference to S105).After heater 11 heating start, with temperature, be maintained at the mode between lower limit temperature and upper limiting temperature α, one side Repeat-heating starts and heating stops, Yi Bian carry out the open and close controlling (close for 40 seconds, open for 2 seconds) (with reference to S104～S105～S106～S107～S108) of the automatic expulsion valve 8 of draining.
But in the situation that repeat the automatic discharge of draining under low temperature environment, no matter above-mentioned control how, the detected temperatures of temperature transducer 10 all declines, and the automatic expulsion valve 8 of draining freezes to become because of draining the state that valve can not open and close.Now, because the energising generation of the automatic expulsion valve 8 of draining is abnormal, so start to freeze to judge (with reference to " draining freezes to judge 1 " and S101 → S109 or the S106 → S109 of Fig. 3 of Fig. 2).
In the situation that current detection value becomes exceptional value, not only suspect freezing of the automatic expulsion valve 8 of draining, also suspect and have fault, therefore, carry out following control.First, the alarm of freezing to external notification by abnormity notifying unit 15, still, the air compressor state (with reference to S110) that keeps on the go.And, the heat control that adds of heater 11 is switched to instant heating, the switching frequency of the automatic expulsion valve 8 of quickening draining was opened valve mode once with every 10 seconds and is controlled (with reference to S111).Under this state, standby current checkout value at 60 seconds with the interior normal value (S111 → S112 → S113 → S111) that whether returns to.
At 60 seconds, with interior, return to normal value in the situation that, be judged as freezed draining and dissolve, recover common draining and discharge and control (with reference to S113 → S102).When recovering common draining discharge control, more regularly carry out the switching (with reference to " regular event judges 2 " of Fig. 2) of the automatic expulsion valve 8 of draining.
That is, be judged to be the running that can be described as air compressor in situation about freezing and continue, but draining is discharged to control, change to the draining control of thawing.Therefore, the situation of using abnormity notifying unit 15 to freeze to the automatic expulsion valve 8 of external notification draining, and, for example, during thaw the necessary time (60 seconds), switch to instant heating, thus, do not stop the running of air compressor and attempt draining and thaw.
Now, the valve of the automatic expulsion valve 8 of draining opens and closes interval mode of shortening when judging than regular event and controls (for example within 10 seconds, close and open for 1 second), in draining, thaw in controlling and recover to be normally judged to be regular event as long as valve opens and closes testing result, as long as do not recover to be normally judged to be the automatic expulsion valve 8 of draining, do not have fault.With the example of Fig. 2～Fig. 3, at 60 seconds, with interior, do not recover normal value in the situation that, be judged as the automatic expulsion valve 8 of draining and have fault.Now, to external notification alarm and make air compressor automatically stop (with reference to S114 → S115 of Fig. 3 and " draining freezes to judge 2 " → " fault verification starts " → " fault verification " of Fig. 2).
In addition, in result of determination, be judged to be break down in the situation that, the heat control that adds of heater 11 needn't instant heating, but, consider drainage outbound path 13 integral body draining freeze prevent, wish that detected temperatures with temperature transducer 10 maintains heating beginning and the heating that mode between lower limit temperature and upper limiting temperature α repeats heater 11 and stops controlling.
As mentioned above, according to the present embodiment, for example even the running environment of air compressor is in the situation that the freezing temperature of draining when normal (for example 2 ℃) the following air compressor that turns round, according to the testing result of being located at the temperature transducer 10 of the automatic expulsion valve 8 of draining, control temperature based on being set in control substrate 14 adds heat control to heater 11, thus, the heating of heater 11 can be suppressed to necessary inferior limit, and maintain the temperature that drainage outbound path 13 and the automatic expulsion valve 8 of draining do not freeze.
In addition, after opening and closing testing result and heater 11 instant heatings, the valve of the current value testing result while having utilized automatic expulsion valve 8 energising of draining by combination whether passes through certain hour, whether whether normally whether can automatic discrimination draining automatic expulsion valve 8 action, freeze, fault.Thus, irrelevant with the operating condition of air compressor, in the situation that the automatic expulsion valve 8 of draining freezes, do not stop the running of air compressor and can automatically make draining thaw.
In addition, by whether being freezed or fault to the automatic expulsion valve 8 of external notification draining by abnormity notifying unit 15, can easily confirm the operating state of the automatic expulsion valve 8 of draining, according to the operating state of the automatic expulsion valve 8 of draining, can carry out suitably corresponding.
[embodiment 2]
Then, use Fig. 4 that embodiment 2 is described.In addition, avoid the repetition of explanation and omit record with the common part of already described embodiment 1.Fig. 4 is embodiment 2 the hardware structure diagram that possesses the air compressor of draining automatic discharge device, is identifying unit 16 to be installed on to the example of the automatic expulsion valve 8 of draining.
In embodiment 2, the valve of combination identifying unit 16 opens and closes testing result and to the energising result of the automatic expulsion valve 8 of draining, judges the operating state of the automatic expulsion valve 8 of draining.Particularly, the testing result of identifying unit 16 is judged to be normally with the consistent situation of energising result, inconsistent situation is judged to be extremely.Like this, even in the situation that the driving of the automatic expulsion valve 8 of draining is DC electrical source with power supply, as long as can carry out the judgement of the operating state of the automatic expulsion valve 8 of draining, just can carry out control similarly to Example 1, therefore, as shown in Figure 2 to 3, can carry out draining and freeze judgement, fault verification, can obtain same effect.
In addition, the present invention is not limited to the above embodiments, comprises various variation.For example, the above embodiments are to describe in order easily to understand the present invention, therefore at length describe, and are not defined as the meaning that possesses illustrated whole structure.In addition, also a part for certain embodiment's formation can be replaced into other embodiment's structure, in addition, can in certain embodiment's structure, add other embodiment's structure.In addition, for a part for each embodiment's formation, can carry out appending of other structure and eliminate displacement.
Claims (11)
1. a draining automatic discharge device, is characterized in that, possesses:
Drainage outbound path, it links with the draining separator from the separated draining of pressurized air;
The automatic expulsion valve of draining, it is installed on this drainage outbound path;
Heater, it heats the automatic expulsion valve of described draining; With
Control substrate, it carries out the heat control that adds of the open and close controlling of the automatic expulsion valve of described draining and described heater,
Current value when the open and close controlling of the automatic expulsion valve of described draining is in the situation that outside the scope of predetermined normal value, the heat control that adds of described heater is stopped, conventionally heats and switch to instant heating from heating, and carry out the open and close controlling of the automatic expulsion valve of described draining, in the situation that described current value returns in the scope of described normal value within the judgement time, be not judged to be and break down.
2. a draining automatic discharge device, is characterized in that, possesses:
Drainage outbound path, it links with the draining separator from the separated draining of pressurized air;
The automatic expulsion valve of draining, it is installed on this drainage outbound path;
Heater, it heats the automatic expulsion valve of described draining; With
Control substrate, it carries out the heat control that adds of the open and close controlling of the automatic expulsion valve of described draining and described heater,
Current value when the open and close controlling of the automatic expulsion valve of described draining is in the situation that outside the scope of predetermined normal value, the heat control that adds of described heater is stopped, conventionally heats and switch to instant heating from heating, and carry out the open and close controlling of the automatic expulsion valve of described draining, in the situation that described current value returns to be judged to be in the scope of described normal value within the judgement time, draining occurs freeze.
3. a draining automatic discharge device, is characterized in that, possesses:
Drainage outbound path, it links with the draining separator from the separated draining of pressurized air;
The automatic expulsion valve of draining, it is installed on this drainage outbound path;
Identifying unit, it judges the open and-shut mode of the automatic expulsion valve of draining;
Heater, it heats the automatic expulsion valve of described draining; With
Control substrate, it carries out the heat control that adds of the open and close controlling of the automatic expulsion valve of described draining and described heater,
In the situation that the instruction of the open and close controlling of the automatic expulsion valve of described draining is different to the judgement of open and-shut mode with described identifying unit, the heat control that adds of described heater is stopped, conventionally heats and switch to instant heating from heating, and carry out the open and close controlling of the automatic expulsion valve of described draining, in the situation that the instruction of the open and close controlling of the automatic expulsion valve of described draining and described identifying unit break down to the judgement of open and-shut mode identical being judged to be that do not become within the judgement time.
4. a draining automatic discharge device, is characterized in that, possesses:
Drainage outbound path, it links with the draining separator from the separated draining of pressurized air;
The automatic expulsion valve of draining, it is installed on this drainage outbound path;
Identifying unit, it judges the open and-shut mode of the automatic expulsion valve of draining;
Heater, it heats the automatic expulsion valve of described draining; With
Control substrate, it carries out the heat control that adds of the open and close controlling of the automatic expulsion valve of described draining and described heater,
In the situation that the instruction of the open and close controlling of the automatic expulsion valve of described draining is different to the judgement of open and-shut mode with described identifying unit, the heat control that adds of described heater is stopped, conventionally heats and switch to instant heating from heating, and carry out the open and close controlling of the automatic expulsion valve of described draining, in the situation that the instruction of the open and close controlling of the automatic expulsion valve of described draining and described identifying unit become within the judgement time to the judgement of open and-shut mode there is draining and freeze in identical being judged to be.
5. the draining automatic discharge device as described in claim 2 or 4, is characterized in that:
In the situation that described current value does not return in the scope of described normal value and is judged to be and breaks down in the judgement time.
6. the draining automatic discharge device as described in claim 1 or 3, is characterized in that:
Possesses the abnormity notifying unit of notifying alarm when fault verification.
7. the draining automatic discharge device as described in claim 2 or 4, is characterized in that:
Possesses the abnormity notifying unit of notifying alarm when draining is freezed to judge.
8. the draining automatic discharge device as described in any one in claim 1～4, is characterized in that:
The temperature transducer that possesses the temperature that detects the automatic expulsion valve of described draining, described control substrate be take and is carried out the heat control that adds of described heater than the higher upper limiting temperature β of the upper limiting temperature α of common heating as benchmark when instant heating.
9. the draining automatic discharge device as described in any one in claim 1～4, is characterized in that:
The automatic discharge path of described draining is covered by thermal-protective material, and described heater and described temperature transducer are installed on the inside being covered by described thermal-protective material.
10. an air compressor, is characterized in that, possesses:
Compressor main body;
Draining separator, its separated next freely compressed-air actuated draining of this compressor main body compression; With
Draining automatic discharge device in claim 1～9 described in any one.
11. 1 kinds of air compressors, is characterized in that possessing:
Compressor main body;
Draining separator, its separated next freely compressed-air actuated draining of this compressor main body compression; With
Draining automatic discharge device claimed in claim 5,
Be judged to be the running that air compressor occurs to maintain the in the situation that draining being freezed, be judged to be the running that stops air compressor breaking down in the situation that.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-152010 | 2012-07-06 | ||
| JP2012152010A JP6076628B2 (en) | 2012-07-06 | 2012-07-06 | Drain discharge device and air compressor |
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| Publication Number | Publication Date |
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| CN103527447A true CN103527447A (en) | 2014-01-22 |
| CN103527447B CN103527447B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310281995.9A Active CN103527447B (en) | 2012-07-06 | 2013-07-05 | Draining discharger and air compressor |
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| JP (1) | JP6076628B2 (en) |
| CN (1) | CN103527447B (en) |
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| CN110137532A (en) * | 2018-02-09 | 2019-08-16 | 本田技研工业株式会社 | Fuel cell system |
| CN112032035A (en) * | 2020-08-13 | 2020-12-04 | 四川虹美智能科技有限公司 | Method for determining damage of valve plate, compressor and electronic equipment |
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| JP6217421B2 (en) * | 2014-02-04 | 2017-10-25 | 日立工機株式会社 | Air compressor and air compressor control system |
| DE112015002184T5 (en) * | 2014-05-09 | 2017-02-02 | Nabtesco Automotive Corporation | Compressed air drying apparatus, method for controlling a compressed air drying apparatus, and vehicle |
| SE541415C2 (en) * | 2016-09-26 | 2019-09-24 | Scania Cv Ab | Method and system for prediction of a drainage valve malfunction probability |
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| CN112032035A (en) * | 2020-08-13 | 2020-12-04 | 四川虹美智能科技有限公司 | Method for determining damage of valve plate, compressor and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014015953A (en) | 2014-01-30 |
| CN103527447B (en) | 2016-08-24 |
| JP6076628B2 (en) | 2017-02-08 |
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