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1. 发明专利

JPH0942709A DESICCANT TYPE AIR CONDITIONER 失效
公开(公告)号：JPH0942709A
公开(公告)日：1997-02-14
申请号：JP21095795
申请日：1995-07-26
申请人： OSAKA GAS CO LTD , SHINKO KOGYO KK
发明人： YAMAGUCHI SHOJI , KASHIWABARA YOSHITAKA , YOSHIDA YASUTOSHI
IPC分类号： F24F3/00 , F24F3/14 , F24F3/147 , F24F11/02
摘要： PROBLEM TO BE SOLVED: To omit the wasteful operation and to obtain the energy conservation by controlling in a dehumidifying mode when the dew point of the atmosphere is a predetermined value or more at the time of cooling, controlling in a heat exchange mode when the draw point is the predetermined value or less and the temperature is a predetermined value or higher, and controlling in a ventilation mode when the dew point and the temperature are predetermined values or less. SOLUTION: When the dew point of the atmosphere is a predetermined value or more at the time of cooling, it is controlled in a dehumidifying mode for operating a moisture absorbing and discharging rotor 4, a heat exchanger rotor 5, a heater 6 for drying and a humidifier 7 to approach the dew point to a target value. When the dew point is a predetermined value or less and the temperature is a predetermined value or higher, it is controlled in a heat exchange mode for stopping the heater 6 and the rotor 4 to approach the temperature to a target value. When the temperature and the dew point are predetermined value or less, it is controlled in a ventilation mode for operating only fans 1 and 2. Thus, when the humidity of the atmosphere is low, the heater 6 is stopped, only the heat exchange is executed to prevent the wasteful use of energy.

2. 发明专利

JPH08313002A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH08313002A
公开(公告)日：1996-11-29
申请号：JP13858295
申请日：1995-05-13
申请人： OSAKA GAS CO LTD , TOKYO GAS CO LTD , TOHO GAS KK , YAZAKI CORP , SHINKO KOGYO KK , TAKENAKA KOMUTEN CO
发明人： KOBAYASHI NOBORU , OKUMURA TAKESHI , FUJIMAKI SEIICHIRO , SHIMIZU TOSHIHARU , TONMIYA SHINJI , YOSHIDA YASUTOSHI , KUSUMOTO NOZOMI
IPC分类号： F24F5/00
摘要： PURPOSE: To improve the responsiveness of a temperature control in a refrigerant circulation type air-conditioning system. CONSTITUTION: In an air-conditioning system wherein a refrigerant condensed in an outdoor machine 1 is sent to a plurality of indoor machines 2, evaporated in each indoor machine 2 and returned to the outdoor machine 1, while the degree of opening of an expansion valve 4 interposed in a branch refrigerant piping on the upstream side of each indoor machine 2 is controlled so that a temperature difference, (Tb-Ta) of the refrigerant between the outlet and the inlet of each indoor machine 2 be a prescribed value, a means for changing over a control target value of the temperature difference in a plurality of stages in accordance with a temperature or a pressure detected by a refrigerant temperature sensor 12 or a refrigerant pressure sensor provided at the outlet of the outdoor machine 1 is provided. Since the degree of overheat being a control target of the expansion valve 4 is changed over simultaneously when a load of the outdoor machine 1 changes suddenly, accordingly, the temperature difference of the refrigerant at that time point deviates to a large extent from the control target value (target degree of overheat). Accordingly, the degree of opening of the expansion valve 4 is modified immediately and sharply and thus it can cope with the sudden change of the load of the outdoor machine 1.

3. 发明专利

JPH08313001A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH08313001A
公开(公告)日：1996-11-29
申请号：JP13858195
申请日：1995-05-13
申请人： OSAKA GAS CO LTD , TOKYO GAS CO LTD , TOHO GAS KK , YAZAKI CORP , SHINKO KOGYO KK , TAKENAKA KOMUTEN CO
发明人： KOBAYASHI NOBORU , OKUMURA TAKESHI , FUJIMAKI SEIICHIRO , MATSUBARA MITSUHARU , TONMIYA SHINJI , YOSHIDA YASUTOSHI , KUSUMOTO NOZOMI
IPC分类号： F24F5/00
摘要： PURPOSE: To improve the responsiveness of a temperature control in a refrigerant circulation type air-conditioning system. CONSTITUTION: In this air-conditioning system wherein a refrigerant condensed in an outdoor machine 1 is sent to a plurality of indoor machines 2, evaporated in each indoor machine 2 and returned to the outdoor machine 1, while the degree of opening of an expansion valve 4 interposed in a branch refrigerant piping 3 on the upstream side of each indoor machine 2 is controlled so that a refrigerant temperature difference between the outlet and the inlet of the indoor machine 2 be a prescribed value, a means for changing a control target value of the temperature difference in accordance with the quantity of air of a fan 6 of the indoor machine 2 is provided. Accordingly, the refrigerant temperature difference (degree of overheat) between the outlet and the inlet to be a control target of the expansion valve 4 is changed over simultaneously with a changeover of the quantity of air of the fan which comes to be a sudden change of a load, and therefore the expansion valve 4 makes an immediate response without waiting for a change of a refrigerant temperature in an evaporation coil 8 and can cope with the sudden change of the load.

4. 发明专利

JP2535363B2 失效
公开(公告)号：JP2535363B2
公开(公告)日：1996-09-18
申请号：JP32209487
申请日：1987-12-17
申请人： TAKENAKA KOMUTEN KK , SHINKO KOGYO KK
发明人： INOE YOSHINORI , MIURA SHINJI , FUKUNAGA TADAHIRO , YOSHIDA YASUTOSHI , KANEDA SETSUO
IPC分类号： F25D17/00 , F25D13/04

5. 发明专利

JP2511081B2 失效
公开(公告)号：JP2511081B2
公开(公告)日：1996-06-26
申请号：JP31955787
申请日：1987-12-15
申请人： TAKENAKA KOMUTEN KK , SHINKO KOGYO KK
发明人： INOE YOSHINORI , MIURA SHINJI , FUKUNAGA TADAHIRO , YOSHIDA YASUTOSHI , KANEDA SETSUO
IPC分类号： F28D15/02 , F24D7/00 , F24F5/00

6. 发明专利

JPH07151359A REFRIGERANT CIRCULATION TYPE AIR CONDITIONING SYSTEM 失效
公开(公告)号：JPH07151359A
公开(公告)日：1995-06-13
申请号：JP32975993
申请日：1993-11-30
申请人： SHINKO KOGYO KK
发明人： YOSHIDA YASUTOSHI
IPC分类号： F24F5/00 , F25B1/00
摘要： PURPOSE:To simplify a system structure by gathering heat exchangers to one unit, commonly using a conveying tube for supplying refrigerant liquid as for returning the liquid, and commonly using a pump for returning the liquid at the time of heating as for forcibly circulating refrigerant at the time of heating. CONSTITUTION:A heat exchanger 1 is commonly used for both cooling and heating. A conveying tube 3 for supplying refrigerant liquid is commonly used for a conveying tube 4 for returning the liquid. At the time of cooling, a pump 5 is commonly used for the pump 5 for forcibly supplying liquefied refrigerant liquid to a fan coil unit 2. At the time of cooling, the liquid in the exchanger 1 is naturally circulated to the unit 2 by an operation of gravity and a pressure of vaporized refrigerant gas or forcibly circulated by the pump 5 to be used for returning liquefied refrigerant liquid to the exchanger 1 at the time of heating. Thus, rooms are cooled. At the time of heating, the liquefied liquid is returned to the exchanger 1 by utilizing the tube 3 for supplying the refrigerant at the time of cooling. In this manner, a system structure can be simplified.

7. 发明专利

JPH07103515A AIR-CONDITIONER SYSTEM FOR BUILDING 失效
公开(公告)号：JPH07103515A
公开(公告)日：1995-04-18
申请号：JP25412593
申请日：1993-10-12
申请人： SHINKO KOGYO KK
发明人： YOSHIDA YASUTOSHI
IPC分类号： F24F5/00
摘要： PURPOSE:To set all the appliances which require a maintenance excepting an air- conditioning unit of an air-conditioning system for a building, which naturally circulates a refrigerant by utilizing an absorption-refrigerator as a cold heat source and hot heat source, at one high place of a building such as a roof, etc., by gathering the appliances in the place. CONSTITUTION:On a roof-top of a building, an absorption-refrigerator 1 as a cold heat source for a cooling circuit and a hot heat source for a heating circuit is set, and an air conditioning unit 2 is set at a place which is lower than the roof-top. The cooling circuit is formed by connecting an evaporator 3 of the absorption- refrigerator and a first heat-exchanger 9 in the air conditioning unit by a-refrigerant liquid pipe 11 and refrigerant gas pipe 12. The heating circuit is constituted by connecting a heat-exchanger 14 for heating to which steam generated from a regenerator 5 of the absorption-refrigerator is introduced, and a second heat-exchanger 10 of the air conditioning unit by a hot water outgoing pipe 15 and hot water returning pipe 16. Then, a refrigerant in the cooling circuit naturally circulates, and hot water in the heating circuit is forcibly circulated by a pump which is set at a high place such as the roof-top of the building, etc. By this method, the maintainability of the system is improved.

8. 发明专利

JPH0539933A BUILDING AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH0539933A
公开(公告)日：1993-02-19
申请号：JP19418191
申请日：1991-08-02
申请人： SHINKO KOGYO KK
发明人： YOSHIDA YASUTOSHI , NABESHIMA YASUSHI
IPC分类号： F24F5/00 , F24D3/10
摘要： PURPOSE:To obtain a building air-conditioning system not to interrupt flow of refrigerant liquid which drops down by its own weight from a condenser in an air conditioning unit and smooth flow of refrigerant gas by providing a pressure uniforming pipe for communication between a liquid reservoir and a refrigerant gas pipe of a unit installed at the lowest place of all the air conditioning units. CONSTITUTION:To a refrigerant gas pipe 6 connected to a unit installed at the lowest place of all air conditioning units 2, a pressure uniforming pipe 10 from a first liquid reservoir 3 is connected. That is, refrigerant liquified in refrigrant gas pipes at higher places than this connecting position, not flowing into a condenser in the air conditioning units 2, passes through the pressure uniforming pipe 10 and enters directly the first liquid reservoir 3. Further, gas contained in refrigerant liquid in the first liquid reservoir 3 can be made to escape through the pressure uniforming pipe 10 into the refrigerant gas pipe 6. Thus, refrigerant gas is prevented from flowing backward into the refrigerant liquid pipe 7 between each of the air conditioning units 2 and the first liquid reservoir 3. Thus, the refrigerant liquid in the refrigerant liquid pipe and the refrigerant gas in the refrigerant gas pipe can flow smoothly.

9. 发明专利

JPH04210772A PHASE CONTROL CIRCUIT 失效
公开(公告)号：JPH04210772A
公开(公告)日：1992-07-31
申请号：JP40163990
申请日：1990-12-12
申请人： SHINKO KOGYO KK , SHINDENSHI KOUGIYOU KK
发明人： YOSHIDA YASUTOSHI , SATO HIDEYUKI , WAGAHARA MOTOHIRO , TSUBAKISHITA HIROSUKE
IPC分类号： H02M7/21 , G05F1/10 , G05F1/56 , H02M1/00
摘要： PURPOSE:To suppress peak at the time of phase control by interrupting a load during high voltage interval and feeding power to the load during low voltage interval at the time of phase control. CONSTITUTION:A voltage Vi at - input part of a comparator 3, divided through resistors R1 and R2, varies with time and the comparator 3 produces an 'H' level during time intervals t1-t2, t3-t4, t4-t5 when the voltage Vi is lower than a voltage V1 thus turning a switching transistors 4 ON and feeding power to a load 5. During time intervals t2-t3 and t5-... when the voltage Vi is higher than V1, the comparator 3 outputs an 'L' level thus turning the switching transistor 4 OFF and interrupting power supply to the load 5. The time points t2 and t3, at which the switching transistor 4 is turned OFF and ON respectively, can be varied freely by varying the resistance of a variable resistor R2 or the voltage V1 of a DC power supply B and thereby input to the load 5 can be varied continuously from 0 to 100%.

10. 发明专利

JPH0262786B2 失效
公开(公告)号：JPH0262786B2
公开(公告)日：1990-12-26
申请号：JP23829586
申请日：1986-10-07
申请人： SHINKO KOGYO KK
发明人： TADOKORO SHIGENOBU , YOSHIDA YASUTOSHI
IPC分类号： F24F5/00

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