CN101772680A - Engine-driven heat pump - Google Patents
Engine-driven heat pump Download PDFInfo
- Publication number
- CN101772680A CN101772680A CN200880100115A CN200880100115A CN101772680A CN 101772680 A CN101772680 A CN 101772680A CN 200880100115 A CN200880100115 A CN 200880100115A CN 200880100115 A CN200880100115 A CN 200880100115A CN 101772680 A CN101772680 A CN 101772680A
- Authority
- CN
- China
- Prior art keywords
- compressor
- engine
- heat pump
- driven heat
- lock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 239000007858 starting material Substances 0.000 description 8
- 230000005856 abnormality Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 206010001541 Akinesia Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/002—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/01—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/06—Several compression cycles arranged in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
An engine-driven heat pump having compressors, in which locking detection means can reliably detect locking of a single compressor in the start-up of air conditioning operation. The engine-driven heat pump (1) has the compressors (10) connected via electromagnetic clutches (20). Slip torque of the electromagnetic clutches (20) is set to be greater than start-up torque of an engine (2), and in the start-up of the heat pump (1), all the electromagnetic clutches (20) are engaged.
Description
Technical field
The present invention relates to a kind of engine-driven heat pump.
Background technology
Always, the known engine-driven heat pump of using the structure of motor driven compressor.In engine-driven heat pump, compressor is connected with engine through clutch.Also promptly, by the ON/OFF of clutch, compressor can transmit the power of engine/removes.
The technology of compressor lock-in detection member also is known.The locking of so-called compressor is meant owing to liquid compression, oil come-up or foreign matter take place sneak into, and makes the compressing mechanism of compressor become the abnormality of akinesia.When the compressor locking takes place, be necessary the device of complete shutting engine down driven heat pump, and carry out the repairing replacing operation of compressor.Also promptly, with the abnormality difference of other (for example, engine fire etc.), the compressor locking is the very high abnormality of a kind of necessity of repairing (urgent unusual).
In Japanese kokai publication hei 6-213171 communique, disclose a kind of according to after the starting through the pressure state after the stipulated time, to the control technology that detects that has or not of compressor locking.But jumbo engine-driven heat pump is connecting multiple compressors on 1 engine.When disclosed control technology is used in the engine-driven heat pump with multiple compressors in Japanese kokai publication hei 6-213171 communique, if initial driven compressor is not a lock-out state when the starting of engine-driven heat pump, then can normally become authorized pressure, so there is such shortcoming: might be able to not detect having or not of the compressor that when the beginning of operation of air conditioner, is in the lock state.Also promptly, engine-driven heat pump remains in operation under the situation of a compressor lock-out state.Consequently, for transmission of power to the compressor that is in lock-out state, when clutch being made as ON (connection), also can be owing to clutch slip produces spark.
Engine-driven heat pump with multiple compressors is as the structure of the multiple compressors that lacks with transmission of power to 1 or than lift-launch platform number when the starting, when the beginning of operation of air conditioner, can not positively avoid having the beginning of the operation of air conditioner under the situation of the compressor that is in the lock state.
Summary of the invention
Problem of the present invention is to provide a kind of engine-driven heat pump with multiple compressors, and it can avoid having the beginning of the operation of air conditioner under the situation of the compressor that is in the lock state.
Engine-driven heat pump of the present invention has multiple compressors via compressor with clutch, use the slip generation torque settings of clutch more than the starting torque of above-mentioned engine above-mentioned compressor, when the starting of above-mentioned engine-driven heat pump, connect all above-mentioned compressor clutches.
Preferably after above-mentioned engine start is finished, remove at least one above-mentioned compressor clutch for engine-driven heat pump of the present invention.
According to engine-driven heat pump of the present invention,, can positively detect having or not of the compressor that when operation of air conditioner begins, is in the lock state for engine-driven heat pump with multiple compressors.Also be, when starting, though because driving force is delivered on all compressors, so also driving force is delivered on the compressor that is in the lock state, but,, become starting and stagnate so clutch slip can not take place because starting torque is in below the slip generation torque of clutch, under the situation with the compressor that is in the lock state, engine-driven heat pump can not turn round.And, be limited to owing to produce the main cause of starting stagnation: the locking of (1) compressor, (2) starter motor is unusual ... or the like, so if the compressor locking takes place, the operating personnel can easily carry out definite especially to this.
According to engine-driven heat pump of the present invention,, can realize and the corresponding compressor capacity control of air conditioner load running by removing at least one above-mentioned compressor clutch.
Description of drawings
Fig. 1 shows the side pie graph of the driving formation of its compressor in embodiments of the present invention.
Fig. 2 is the section pie graph of the AA ' section among Fig. 1 of compressor.
Fig. 3 is for showing the flow chart of the flow process that the compressor lock-in detection is controlled.
Fig. 4 is for showing the chart of the order when being judged as the compressor lock-out state.
Fig. 5 is for showing the chart of the order when compressor is normally judged.
The specific embodiment
Below embodiments of the present invention are described.
Fig. 1 shows the side pie graph of the driving formation of its compressor in embodiments of the present invention.Fig. 2 is the section pie graph of the AA ' section among Fig. 1 of compressor.Fig. 3 is for showing the flow chart of the flow process that the compressor lock-in detection is controlled.Fig. 4 is for showing the chart of the order when being judged as the compressor lock-out state.Fig. 5 is for showing the chart of the order when compressor is normally judged.
At first, use Fig. 1, the driving of the compressor 10 of engine-driven heat pump 1 is constituted illustrate simply.
As shown in Figure 1, engine 2 is connected via driving belt 5 with compressor 10.Engine 2 via being positioned on the mounting table 3 with vibrationproof, soundproof elastomeric element that is purpose etc., and is housed in the housing of engine-driven heat pump 1.And engine 2 has the starter motor 6 of ato unit.Further, on the output shaft of engine 2, has engine belt pulley 4.
As the compressor clutch, electromagnetic clutch 20 is installed between power shaft 14 and the compressor pulley 11.And the formation of electromagnetic clutch 20 comprises: be integral with compressor pulley 11 and the coil 17 of (being mounted in the present embodiment, inside) is set; With the armature 12 (do not rotate with respect to power shaft 14, but can on the direction of principal axis of power shaft 14, be free to slide) on the end that is combined in above-mentioned power shaft 14.
Electronic control unit 7 (Electronic Control Unit, hereinafter referred to as ECU7) be connected with detection means (electric expansion valve, magnetic valve, temperature detection member, pressure detecting member) and electromagnetic clutch 20 with each device of detection means (igniter, temperature detection member and rotating speed detection means 18 etc.), engine-driven heat pump 1 with each device of this engine 2, and carry out the running control of engine-driven heat pump 1
Further, with reference to Fig. 2, the formation that has the engine-driven heat pump 1 of 2 compressors 10 on 1 engine 2 is illustrated simply.
As shown in Figure 2, the engine-driven heat pump 1 of present embodiment has 10: the first compressor 10a of 2 compressors and the second compressor 10b.And for above-mentioned belt pulley 4 and above-mentioned compressor belt pulley 11a, 11b, driving belt 5 is opened in the mode that forms general triangular and is established.
ON/OFF effect to the electromagnetic clutch 20 in the driving of the compressor 10 of such formation describes.
When electromagnetic clutch 20 was in ON, ECU7 flow through electric current to be arranged on the coil 17 of the inside of compressor pulley 11, produced excitation.By the magnetic flux that is produced in the coil 17 of compressor pulley 11, armature 12 slides and absorption to compressor pulley 11 sides.Then, armature 12 and compressor pulley 11 are integrated by frictional engagement.Also promptly, when electromagnetic clutch 20 was ON, the power shaft 14 of compressor 10 was driven in rotation, and compressor 10 is in operating condition.
On the other hand, when electromagnetic clutch 20 is in OFF, also promptly work as coil 17 not by under the state of excitation, armature 12 separates with compressor pulley 11 devices spaced apart ground, has only compressor pulley 11 to dally.Promptly, when electromagnetic clutch 20 was OFF, the driving force of engine 2 can not be delivered to the power shaft 14 of compressor 10 yet, and compressor 10 is in halted state.
Here, the electromagnetic clutch 20 in compressor locking and the compressor lock-out state is described.
The locking of so-called compressor is meant because liquid compression, oil come-up or foreign matter are sneaked into, and makes the spiral vortex type compressing mechanism 13 of compressor 10 become the state of akinesia.Under this state, if 5 pairs of compressor pulley 11 transferring power of driving belt, when having surpassed regulation torque (slide torque takes place), driving belt 5 produces with respect to compressor pulley 11 and slides.
In the present embodiment, the slip generation torque with electromagnetic clutch 20 is set in more than the starting torque of engine 2 (starter motor).In other words, if when the starting of compressor lock-out state, 20 places can not produce slip at electromagnetic clutch, even when electromagnetic clutch 20 is arranged on ON, can not make engine 2 and compressor 10 produce rotation, thus become can not ato unit 2 starting stagnate.
Here, with reference to Fig. 3, the control of avoiding that the engine-driven heat pump under the situation with the compressor that is in lock-out state of the present invention is turned round is elaborated.
ECU7 receives the ON instruction be used for ato unit driven heat pump 1, or receives the hot ON instruction (S100) when having surpassed design temperature behind the operation of heat pump, ato unit 2 (S110).
At this moment, no matter the size of air conditioner load how, ECU7 can be made as ON with 2 electromagnetic clutch of electromagnetic clutch 20a, 20b.Further, driving starter motor 6, the rotation of power shaft 14 does not reach when setting rotating speed, ECU7 output abnormality code E0, the driving of the motor 6 that stops.At the appointed time in the t1, when the caused engine 2 by E0 stop not to be continuous more than 3 times the time (S130), when being engine 2 normal startings, the side among electromagnetic clutch 20a or the 20b is made as OFF (S140), begins to carry out the running (S150) of the volume controlled of compressor 10.
In addition, E0 is meant that at least one compressor 10 locks or the abnormality code when starter motor 6 because abnormal conditions etc. and fail to start.
On the other hand, in official hour t1, if by the caused engine 2 of E0 stop continuously more than 3 times (S130), ECU7 is judged as at least one compressor 10 unusually and is in the lock state (perhaps starter motor is unusual) (S200).At this moment, stagnate as starting, ECU7 makes engine-driven heat pump 1 stop (S210) fully, and is given the alarm by alarm device, informs unusually to the operating personnel.And so-called starting is stagnated, and is meant that after beginning starting order by ECU7 in official hour t1, engine or compressor rotary speed do not reach the state of regulation rotating speed.
Further, with reference to Fig. 4 and Fig. 5, illustrate with the situation with the compressor that is in above-mentioned lock-out state under each order of avoiding controlling relevant engine 2 and compressor 10a, 10b of engine-driven heat pump running.
Fig. 4 and Fig. 5 are expressed as time series with transverse axis, and the longitudinal axis is expressed as the ON/OFF of first compressor (Comp 1), the ON/OFF of second compressor (Comp 2) and the engine speed (Nrpm) of engine (Engine).
At first, with reference to Fig. 4, each order of the above-mentioned compressor lock-in detection control when the second compressor 10b is in the lock state (Lock) is elaborated.
As shown in Figure 4, engine 2 is after the starting order of receiving engine-driven heat pump 1, owing to the second compressor 10b is in the lock state, so engine 2 (starter motor) fail to start is stopped by E0.Because during official hour t1, causedly stop, restarting and continued 3 times by E0, so engine-driven heat pump 1 stops fully.
Like this, when air-conditioning begins, can positively avoid under the situation of compressor 10b lock-out state engine-driven heat pump 1 running.Also promptly,, constitute transmission of drive force all, thus, stagnate, engine-driven heat pump 1 is stopped by starting is taken place the compressor 10b that is in the lock state also transmission of drive force ground to all compressor 10a, 10b in when starting.Consequently, can avoid under the situation of compressor 10b lock-out state by compressor 10a engine-driven heat pump 1 running.Also promptly, in engine-driven heat pump 1,, just can avoid the beginning of operation of air conditioner as long as there is 1 to be the compressor that is in the lock state with 2 compressor 10a, 10b.
In addition, with reference to Fig. 5, each order that the above-mentioned compressor locking when all being in normally (Normal) as the first compressor 10a and the second compressor 10b detects control is elaborated.
As shown in Figure 5, at this moment, after the starting order of receiving engine-driven heat pump 1, because the first compressor 10a and the second compressor 10b be in normally, so engine 2 (starter motor) normal starting.Then, because a side electromagnetic clutch 20b is removed, engine-driven heat pump 1 is only turned round by the first compressor 10a.And corresponding to the size of air conditioner load, engine-driven heat pump 1 also can start the second compressor 10b, and 2 compressors are all turned round.
Like this, behind the proceed-to-send of engine 2, by removing electromagnetic clutch 20b (20a), can be by 1 compressor 10a (10b) entry into service.Also promptly, can realize carrying out running corresponding to the volume controlled of the compressor of air conditioner load.
Utilizability on the industry
The present invention can be used to engine-driven heat pump.
Claims (2)
1. engine-driven heat pump, this engine-driven heat pump has multiple compressors via compressor with clutch, it is characterized in that: use the slip generation torque settings of clutch more than the starting torque of above-mentioned engine above-mentioned compressor, when the starting of above-mentioned engine-driven heat pump, connect all above-mentioned compressor clutches.
2. engine-driven heat pump according to claim 1 is characterized in that: after above-mentioned engine start finishes, remove at least one above-mentioned compressor clutch.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007195217A JP2009030876A (en) | 2007-07-26 | 2007-07-26 | Engine-driven heat pump |
| JP2007-195217 | 2007-07-26 | ||
| PCT/JP2008/063390 WO2009014210A1 (en) | 2007-07-26 | 2008-07-25 | Engine-driven heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101772680A true CN101772680A (en) | 2010-07-07 |
Family
ID=40281457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880100115A Pending CN101772680A (en) | 2007-07-26 | 2008-07-25 | Engine-driven heat pump |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2184562A1 (en) |
| JP (1) | JP2009030876A (en) |
| KR (1) | KR20100038444A (en) |
| CN (1) | CN101772680A (en) |
| WO (1) | WO2009014210A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102225856B1 (en) * | 2020-05-06 | 2021-03-09 | 서현석 | Gas engine driven heat pump system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0413059A (en) * | 1990-04-28 | 1992-01-17 | Yamaha Motor Co Ltd | Operation system for heat pump type multi-system air conditioner |
| JPH06213171A (en) | 1992-11-25 | 1994-08-02 | Daikin Ind Ltd | Lock detecting device for compressor of inverter-driven air-conditioner |
| JP2000274455A (en) * | 1999-03-23 | 2000-10-03 | Toyota Autom Loom Works Ltd | Method for controlling electromagnetic clutch |
| JP2005351307A (en) * | 2004-06-08 | 2005-12-22 | Sanden Corp | Coupling unit of compressor |
-
2007
- 2007-07-26 JP JP2007195217A patent/JP2009030876A/en active Pending
-
2008
- 2008-07-25 WO PCT/JP2008/063390 patent/WO2009014210A1/en active Application Filing
- 2008-07-25 CN CN200880100115A patent/CN101772680A/en active Pending
- 2008-07-25 KR KR1020107003025A patent/KR20100038444A/en not_active Application Discontinuation
- 2008-07-25 EP EP08791634A patent/EP2184562A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009030876A (en) | 2009-02-12 |
| WO2009014210A1 (en) | 2009-01-29 |
| EP2184562A1 (en) | 2010-05-12 |
| KR20100038444A (en) | 2010-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100707 |