CN101165347A - Water-injected compressor - Google Patents
Water-injected compressor Download PDFInfo
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- CN101165347A CN101165347A CNA2007101424063A CN200710142406A CN101165347A CN 101165347 A CN101165347 A CN 101165347A CN A2007101424063 A CNA2007101424063 A CN A2007101424063A CN 200710142406 A CN200710142406 A CN 200710142406A CN 101165347 A CN101165347 A CN 101165347A
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Abstract
The invention relates to a water-injected compressor. While the compressor portion stays at a stop, the duration causes the water inside the separator for separating air from water and inside the lines to near the temperature of the atmosphere, resulting in the possibility of ambient bacteria/germs growing in the remaining water in the separator and lines. A water-injected compressor, which injects the water inside the separator 3 into the compressor and discharges the water along with compressed air into the separator and then gains condensed and separated water, has the compressor stopping and then, if staying at a stop for a predetermined duration of time without activating, becoming activated and operating for a set duration of time.
Description
Technical field
The present invention relates to compressor internal spray water, and with the pressurized air water-injected compressor of discharge water together.
Background technique
The water that the water-injected compressor utilization is ejected in the compressor section is lubricated and seals.In order together to be ejected into compressor inside once more from the water that compressor is discharged with pressurized air, water-injected compressor has the water circulation system that the water cycle of making is used.
In the past, for example patent documentation 1 records: in order to reduce the impurity concentration of circulating water, long-time continuous running under the situation of make-up water not, supply with pressurized air to tank, the pressurized air that leaves tank is cooled off, in compressor, supply with the moisture after separating, discharge cycles left water from tank.
Patent documentation 1: TOHKEMY 2000-45948 communique
In above-mentioned prior art, the water of compressor section duration of work supply all the time condensation from pressurized air, owing to become High Temperature High Pressure in the compressor section, so the breeding of germ is inhibited.But if the overlong time that compressor section stops, then the water in the separator of separation of air and water and the pipe arrangement might be bred in the water of airborne germ in residuing in separator or pipe arrangement near atmospheric temperature.
Particularly the environment of atmospheric temperature in spring to autumn about 30 ℃ is suitable for the breeding of germ, thus under the long situation of the stop time of compressor section in order to suppress the breeding of germ, need frequent replacing water and then need carry out the cleaning of device and pipe arrangement.
Summary of the invention
The objective of the invention is to,, during working, do not needing to change timing-consuming activities such as water next time, prevent breeding based on germ in water quality management running, separator and the compressor section of timer and in the pipe arrangement even compressor section stops for a long time.
To achieve these goals, the invention provides a kind of water-injected compressor, it is the water in the injection of separation device in compressor section, and water and pressurized air together are ejected in the described separator, separates, wherein, after described compressor stops, even through the predefined time, when the startup that does not have described compressor section requires, also make described compressor start, and make its work stipulated time.
The invention effect
According to the present invention, can prevent in the compressor section and pipe arrangement in the breeding of germ.
Description of drawings
Fig. 1 is the block diagram of expression an embodiment of the present invention;
Fig. 2 is the chart of the relation of stopping of expression one mode of execution and operating time and discharged air temperature;
Fig. 3 be expression one mode of execution atmospheric temperature with stop and the figure of the relation of operating time;
Fig. 4 is the flow chart of the running action of expression one mode of execution;
Fig. 5 is that expression stops and the chart of the relation of operating time and discharged air temperature;
Fig. 6 is the block diagram that the system of other mode of executions of expression constitutes;
Fig. 7 is the block diagram that the system of the other mode of execution of expression constitutes;
Fig. 8 is the block diagram of other water quality management modes of expression;
Fig. 9 is the block diagram of the other water quality management mode of expression.
Embodiment
Fig. 1 represents that the system of the water-injected compressor of a mode of execution constitutes, and compressor section 1 is a volume shape compressor, is that example describes with the screw compressor.
The water of separator 3 supplies to compressor 1 from the water supplying tubing 20 that is connected with separator 3 under the interior pressure effect of separator 3.Spraying pipe arrangement 22 by the air cooling water cooler 4 cooled water that are connected with water supplying tubing 20 from water supplies with to the working rotor chamber of compressor section 1.Bearing at compressor is under the situation of water lubriucated bearing, owing to when the startup of compressor section 1, do not send the pressure of water in the separator 3, so the pump 29 that is provided with between water supplying tubing 20 and air cooling water cooler 4 starts, water from separator 3 is boosted, supply with water to the bearing of compressor section 1.
Compressor section 1 will be discharged to separator 3 via discharging pipe arrangement 15 with the together never illustrated exhaust port of the water that sprays in the compression process from the suction port 14 inhaled airs compression that possesses filter by suction.In separator 3, separate pressurized air and water.After water is stored in the bottom of separator 3, supply with to compressor section 1 by water supplying tubing 20 once more.
After the separated device 3 of pressurized air separates, the exhausting air pipe arrangement 16 that is connected by the top with separator 3 is cooled off by aftercooler (after cooler) 5, remove the discharge water of condensation then by drain separator (drainseparator) 19, discharge to being used to supply with compressed-air actuated interior conduit 18.
Compressor section 1 at night, the long period such as day off is when stopping, in other words, be not activated from the outside for compressor section 1 when requiring, as shown in Figure 2, if surpass predefined stop time toff23 in stop time, then start compressor section 1 automatically, running set time ton24 for water quality management.Then, repeat to suspend and work starts once more up to water-injected compressor.For the work of compressor, stop, describing in detail again in conjunction with Fig. 1.
Water-injected compressor possesses the control panel 9 that integral unit is turned round and controls, and the drive motor 2 of 9 pairs of water-injected compressors 1 of control panel, cooling fan drive with the motor of motor 6 and pump 29.In addition, control panel 9 drives bypass pipe arrangement solenoid valve 45 and tripartite solenoid valve 21, described bypass pipe arrangement is matched with solenoid valve 45 and is used to make the running of the pump 29 that water boosts to open and close when starting, 21 pairs of following two pipe arrangements of described tripartite solenoid valve switch, pipe arrangement is the pipe arrangement that the water of supplying with to compressor 1 by air cooling water cooler 4 is cooled off, another pipe arrangement with can't help 4 coolings of air cooling water cooler, remain in water temperature under the state of high temperature and be directly used in pipe arrangement from water to compressor 1 that supply with.
In addition, the atmospheric temperature (inlet temperature) that is provided with at suction port 14 of utilizing control panel 9 detects coolant-temperature gage with sensor 13, separator and detects with sensor 11, to the discharge temperature detection sensor 12 that the temperature of the air of discharging from compressor 1 detects, and detects the temperature of each one.And then control panel 9 utilizes operating time, the stop time of timer 10 instrumentation compressor sections 1.Control panel 9 has storage device, and this storage device stores as shown in Figure 3 according to detected atmosphere (suction) temperature and set the operating time of compressor section 1, the data of stop time.
Secondly, the sequence of movement of water-injected compressor is described in conjunction with Fig. 4.
In order to carry out common running, compressor section 1 starts (step 31) under the even in everyday situations.Then, when the darg time finished, compressor section 1 stopped (step 32).Afterwards, compressor section 1 stores in the not shown storage device after utilizing timer 10 to detect stop time to (step 33).And then, detect the water temperature T w (step 34) of atmospheric temperature (inlet temperature) Ta, separator, similarly storage.Therefore, based on detected atmospheric temperature Ta or water temperature T w, according to the data setting in the storage device with respect to atmospheric temperature Ta or with respect to the time out toff and the operating time ton (step 35) of the compressor section 1 of water temperature T w.Then, detect transit time t1 (step 36), calculate time out (step 37), when surpassing set time (step 38), make water-injected compressor work (step 39) as if time out by timer 10.
Do not surpass under the situation of set time at time out, the detection that repeats atmosphere (suction) temperature, water temperature is the later circulation of step 34.During compressor section 1 work, the time t2 (step 40) of testing and storage.Then, detect transit time t3 (step 41), calculate running time (step 47).Therefore, the running time of calculating and ton running time of setting are made comparisons (step 42), surpass under the situation of set time ton between in the running, stop water-injected compressor (step 43).
Afterwards,, judge whether to have pushed the enable switch (step 44) that requires as common startup, then, under the situation of having pushed common enable switch, carry out common continuous running (step 31) for water-injected compressor.If, under the situation of not pushing common enable switch, be recycled and reused for water quality management work, stop (returning step 33).
In addition, after compressor 1 stops, when making compressor section 1 work for water quality management, for the bactericidal effect that increases water can make discharged air temperature be higher than common running and turns round.That is, the water that is used to supply with air cooling water cooler shown in Figure 14 cooling and supplying with usually, but also can for example switch tripartite solenoid valve 21, by water cooler 4, and directly to compressor section 1 feedwater.Thus, the temperature of water also rises, and becomes high temperature, thereby the bactericidal effect of water increases.And then, if discharged air temperature (water temperature of discharge also becomes close temperature) is made as more than 85 ℃, the operating time under this temperature was made as more than 15 minutes, then can obtain the bactericidal effect of water reliably.
Have again, afterwards can exceedingly not become high temperature in order to make discharged air temperature reach setting temperature, preferably make tripartite solenoid valve 21 work, to water cooler 4 pass through control with bypass, discharged air temperature (coolant-temperature gage) is adjusted to setting temperature, or control by the rotating speed to the motor 6 of the cooling fan 7 that drives air cooling water cooler 4, change air quantity, regulate the cooling of water thus.
Fig. 6 is that water chilled water cooler 27 carries out water-cooled situation, and the water of separator 3 is supplied with from water supplying tubing 20 under the interior pressure effect of separator 3, after 27 coolings of water-cooled water cooler, sprays pipe arrangement 22 by water and supplies with to the working rotor chamber of compressor 1.
Bearing at compressor 1 uses under the situation of water lubriucated bearing, owing to do not have pressure in the separator when being used for the startup of water quality management of compressor 1, so the pump 29 that is provided with boosts, supply with water to the bearing of compressor 1 between water supplying tubing 20 and water-cooled water cooler 27.Compressor 1 will together be discharged to separator 3 via discharging pipe arrangement 15 from exhaust port with the water that sprays in the compression process from the suction port 14 inhaled airs compression that possesses filter by suction.In separator 3, separate pressurized air and water.After water is stored in the bottom of separator 3, supply with to compressor 1 by water supplying tubing 20 once more.
After the separated device of pressurized air 3 separated, the exhausting air pipe arrangement 16 that is connected by the top with separator 3 was by aftercooler 28 coolings, remove the discharge water of condensation by drain separator 19 then after, to 18 discharges of field interior conduit.
At water-injected compressor 1 at night or long period such as day off when stopping, as shown in Figure 2, when stop time surpasses predefined stop time toff23, make water-injected compressor 1 work automatically for water quality management, running set time ton24.Then, repeat to suspend and work starts once more up to water-injected compressor 1.
For the work of compressor 1, stop, describing in detail again in conjunction with Fig. 6.Water-injected compressor possesses the control panel 9 that integral unit is turned round and controls, and the drive motor 2 of water-injected compressor and the motor of pump 29 are driven.In addition, control panel 9 drives bypass pipe arrangement solenoid valve 45 and tripartite solenoid valve 21, described bypass pipe arrangement is matched with solenoid valve 45 and is used to make the running of the pump 29 that water boosts to open and close when starting, 21 pairs of following two pipe arrangements of described tripartite solenoid valve switch, a pipe arrangement is the pipe arrangement that the water of supplying with to compressor 1 by water-cooled water cooler 27 is cooled off, and another pipe arrangement is directly to supply with the water injection pipe arrangement 22 of water to compressor 1 without 27 coolings of water-cooled water cooler.
In addition, atmosphere (suctions) temperature detection that utilization is provided with at suction port 14 detects with sensor 11, to the discharge temperature detection sensor 12 that the temperature from the air of compressor 1 discharge detects with the coolant-temperature gage of sensor 13, separator, detects each temperature.And then control panel 9 utilizes operating time, the stop time of timer 10 instrumentation compressors 1.
And then control panel 9 has storage device, and this storage device stores the data of having set operating time, stop time according to detected inlet temperature as shown in Figure 3.In conjunction with, the sequence of movement of water-injected compressor 1 is described in conjunction with Fig. 4.
In order to carry out common running, compressor 1 starts (step 31) under the even in everyday situations.Then, the darg time finishes, and stops when pipeline is supplied with pressurized air, and compressor stops (step 32).Afterwards, the control panel 9 with not shown storage device utilizes timer 10 storage stop time to (step 33), and then, detect the water temperature T w (step 34) of atmospheric temperature (intake air temperature) Ta, separator 3 inside, and store.Therefore, based on detected atmospheric temperature Ta or water temperature, according to the data setting in the storage device with respect to atmospheric temperature Ta or with respect to the time out toff and the operating time ton (step 35) of the compressor 1 of water temperature T w.Then, detect the transit time (step 36), when time out surpasses set time (step 38), make water-injected compressor 1 work (step 39) by timer 10.
And then, the time (step 40) during testing, regularly detect the transit time afterwards, when surpassing set time ton, stop compressor as if the operating time.At this moment, judge that whether compressor 1 has begun startup (step 44) according to common enable switch, under the situation of having pushed common enable switch, carries out common continuous running (step 31) afterwards.If, under the situation of not pushing common enable switch, be recycled and reused for water quality management work, stop (returning step 33).Have, the adjusting of discharged air temperature is controlled by being regulated by the cooling water inflow of 46 pairs of water-cooled water coolers 27 of solenoid valve again.
Shell, rotor, bearing and gland seal device have and can set the heat resistance that use under the discharge temperature, also do not have obstacle even make compressor 1 become in discharge temperature under the situation of high temperature.In addition, guaranteeing between rotor, between rotor/shell and the gap between the Internal and external cycle of bearing, is the value that can not cause damage under the discharge temperature of setting when working.In addition, pipe arrangement and separator, liner (packing) class, solenoid valve or temperature detection sensor are also guaranteed heat resistance, also do not have obstacle even make to work under the discharge temperature of setting.
More than, behind the stopping of water-injected compressor, even through the predefined time, be the time that the breeding of germ begins to enliven, when compressor section 1 is not activated, periodically make water-injected compressor work, stop, so water can not be trapped in separator 3, water pipe arrangement, the compressor section 1 for a long time, because water temperature can further raise, so can prevent the breeding of germ in water in separator or the device.
In addition, owing to detect the water temperature of atmospheric temperature or separator 3, set time and the interval that makes water-injected compressor work, so even, also can prevent the breeding of germ reliably in the period of the easy breeding of germ in summer according to atmospheric temperature or water temperature.
And then, wait in the winter time that atmospheric temperature is low, the breeding of germ sluggish period, make the interval of water-injected compressor work by prolongation, can save the driving energy of the compressor that water quality administrative institute needs.
And then, be purpose when making its work in water quality management with water-injected compressor, the setting temperature when being higher than common work by the discharged air temperature that makes compressor section 1, water temperature also becomes near discharge temperature, so can further increase the bactericidal effect of water.Have, for water quality management, will the discharged air temperature in water-injected compressor when work is made as more than 85 ℃, work can realize the bactericidal effect of water more than 15 minutes thus reliably.
And then, compressor section 1, separator 3, the pipe arrangement of water-injected compressor are become the heat resistant structure that can turn round under the setting discharged air temperature of high temperature, correctly set the gap in addition, can prevent from thus to produce compressor sections 1 such as bearing, rotor, shell critical piece thermal expansion or cause rotten, distortion, contact equivalent damage, and function reduction such as compression performance decline, leakage.
And then, other embodiments shown in Figure 7 are described.Water-injected compressor 1 shown in Figure 7 and comprise the system of its peripheral structure, main structure is identical with structure shown in Figure 1.In the present embodiment, the capacity control mechanism that is provided with by compressor 1 or its periphery carries out volume controlled.By making compressor section 1 work, energy-conservationization in the time of can realizing carrying out water quality management.For example, air-breathing discharge mechanism (suction unloader) 48 (throttle mechanisms) the restraining air mass flow that is provided with by suction port at compressor section 1.By reducing the suction air that compressor 1 sucks, can reduce the running power of compressor section 1.
In addition, utilize transducer 49 from Ac to the motor 2 of Driven Compressor portion 1 that supply with, by being arranged to carry out rotating speed control, when being used for the running that water quality saves from damage, reduce the rotating speed of motor 2, Driven Compressor portion 1 can further reduce the running power of compressor section 1 thus.
And then, in conjunction with Fig. 8 the related structure of water quality management is described.Used the contrary crystal's system device 50 that soaks into film to be connected with separator 3 by make-up water pipe arrangement 52.The crystal makes manufacturing installation 50 and is not connected by the contrary waste pipe 53 that soaks into the water that contains salt of film (not shown) with discharging with the feedwater pipe arrangement 51 of supplying with water.For sterilization makes compressor 1 running, and from draining with the water in the pipe arrangement 54 discarded separators 3, by 52 supplies of make-up water pipe arrangement by the refining water of crystal's system device 50, thereby can reduce the water of water-quality deterioration.Thus, running time that can save compressed machine 1, and can reduce the running power of compressor section 1, so can obtain energy-saving effect.
And then, in conjunction with Fig. 9 other related structures of water quality management are described.In the way of the water supplying tubing 20 that is connected with separator 3, be provided with ultraviolet sterilization apparatus 55.Ultraviolet sterilization apparatus 55 has the stream that connects water supplying tubing 20 and is provided with and produces ultraviolet luminescence-utraviolet lamp 57 with being connected with this stream.Luminescence-utraviolet lamp 57 is given electric and luminous by power supply 56.Ultraviolet ray sees through portion by the not shown ultraviolet ray that is provided with on the stream, the water that circulates in the irradiation stream.By water being carried out sterilization, running time that thus can save compressed machine portion 1, obtain energy-saving effect by ultraviolet ray.
Claims (11)
1. water-injected compressor, it has to the compressor section of inner water-spraying and the separator that the air of discharging from this compressor section is separated with water to the internal spray of described compressor section, it is characterized in that,
After described compressor section stops,, described compressor section is started, and make its work stipulated time even when the startup that does not have described compressor section through the predefined time requires.
2. water-injected compressor according to claim 1 is characterized in that,
Be provided with the sensor that the atmospheric temperature that sucks described compressor section is detected,, change described predefined time and stipulated time according to detected atmospheric temperature.
3. water-injected compressor according to claim 1 is characterized in that,
Be provided with the sensor that the coolant-temperature gage in the described separator is detected, change described predefined time and stipulated time according to described coolant-temperature gage.
4. water-injected compressor according to claim 1 is characterized in that,
Also have: the water of the water in described compressor is supplied with described separator sprays pipe arrangement and sprays the water cooler that cools off the water in the described separator between pipe arrangement and the described separator at this water,
Make described compressor section work during the stipulated time, the amount of cooling water of described water cooler is reduced.
5. water-injected compressor according to claim 1 is characterized in that,
Also have the temperature transducer that the air temperature of discharging from described compressor section is detected,
Make described compressor section work during the stipulated time, the discharged air temperature of discharging from described compressor section is more than 85 ℃, and work is more than 15 minutes.
6. water-injected compressor according to claim 1 is characterized in that,
Also have: the water of the water in described compressor is supplied with described separator sprays pipe arrangement and sprays the water cooler that cools off the water in the described separator between pipe arrangement and the described separator at this water,
Be to use at described water cooler under the situation of water cooler of the water-cooled that outside water cools off the water from described separator, the water yield of leading to this water-cooled water cooler is regulated, control is from the temperature of the water of described separator.
7. water-injected compressor according to claim 1 is characterized in that,
Behind the stopping of described compressor, even when the startup that does not have described compressor through the predefined time requires, described compressor section is started, in the compression volume of the described compressor section of control, make its work.
8. water-injected compressor according to claim 7 is characterized in that,
Suction port at described compressor section also is provided with throttle mechanism, and the suction air quantity that described compressor section is sucked is variable.
9. water-injected compressor according to claim 1 is characterized in that,
Be provided with to the drive motor that drives described compressor section and supply with the transducer that exchanges, control the rotating speed of described drive motor.
10. water-injected compressor according to claim 1 is characterized in that,
Also have: have the contrary crystal's system device that soaks into film, connect the make-up water pipe arrangement of this crystal's system device and described separator,
Behind the stopping of described compressor section, even when the startup that does not have described compressor section through the predefined time requires, also discharge the water in the described separator, make water enter described separator by described make-up water pipe arrangement from described crystal's system device, start described compressor section simultaneously, make its work stipulated time.
11. water-injected compressor according to claim 1 is characterized in that,
On the pipe arrangement between described separator and the described compressor section, be provided with ultraviolet sterilization apparatus.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006280869 | 2006-10-16 | ||
| JP2006280869A JP4774351B2 (en) | 2006-10-16 | 2006-10-16 | Water jet compressor |
| JP2006-280869 | 2006-10-16 | ||
| JP2007090131 | 2007-03-30 | ||
| JP2007-090131 | 2007-03-30 | ||
| JP2007090131A JP4350136B2 (en) | 2007-03-30 | 2007-03-30 | Water jet compressor |
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| Publication Number | Publication Date |
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| CN101165347A true CN101165347A (en) | 2008-04-23 |
| CN101165347B CN101165347B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101424063A Active CN101165347B (en) | 2006-10-16 | 2007-08-22 | Water-injected compressor |
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| JP (1) | JP4774351B2 (en) |
| CN (1) | CN101165347B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080654A (en) * | 2009-11-30 | 2011-06-01 | 株式会社日立产机系统 | Water-injection type scroll air compressor |
| CN103909804A (en) * | 2013-01-09 | 2014-07-09 | 杨铭域 | Air-conditioning protecting system |
| CN104100529A (en) * | 2013-04-12 | 2014-10-15 | 株式会社日立产机系统 | Water Lubricated Screw Compressor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5248373B2 (en) * | 2009-03-11 | 2013-07-31 | 株式会社日立産機システム | Water jet air compressor |
| JP5542468B2 (en) | 2010-02-10 | 2014-07-09 | 株式会社日立産機システム | Water-injected scroll air compressor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2651846B2 (en) * | 1988-08-04 | 1997-09-10 | 北越工業株式会社 | Power reduction device for water injection compressor |
| US6174148B1 (en) * | 1998-07-23 | 2001-01-16 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Water jet type air compressor system, its starting method, and water quality control method thereof |
| JP2000240573A (en) * | 1999-02-16 | 2000-09-05 | Hokuetsu Kogyo Co Ltd | Circulation water circulating circuit for water injection compressor |
| SE516284C2 (en) * | 2000-03-30 | 2001-12-10 | Svenska Rotor Maskiner Ab | Methods for maintaining low bacterial content in a circulation system, which includes a compressor and a device for carrying out the method. |
| JP2002332967A (en) * | 2001-05-01 | 2002-11-22 | Mitsui Seiki Kogyo Co Ltd | Disinfection device in water circulating compressor line |
| JP4680760B2 (en) * | 2005-12-09 | 2011-05-11 | 株式会社神戸製鋼所 | Water lubricated air compressor and operation method of water lubricated air compressor |
| JP4350136B2 (en) * | 2007-03-30 | 2009-10-21 | 株式会社日立産機システム | Water jet compressor |
-
2006
- 2006-10-16 JP JP2006280869A patent/JP4774351B2/en active Active
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2007
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080654A (en) * | 2009-11-30 | 2011-06-01 | 株式会社日立产机系统 | Water-injection type scroll air compressor |
| CN102080654B (en) * | 2009-11-30 | 2014-01-08 | 株式会社日立产机系统 | Water-injection type scroll air compressor |
| CN103909804A (en) * | 2013-01-09 | 2014-07-09 | 杨铭域 | Air-conditioning protecting system |
| CN104100529A (en) * | 2013-04-12 | 2014-10-15 | 株式会社日立产机系统 | Water Lubricated Screw Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101165347B (en) | 2010-07-21 |
| JP4774351B2 (en) | 2011-09-14 |
| JP2008095643A (en) | 2008-04-24 |
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