公开(公告)号：JPH06272939A

公开(公告)日：1994-09-27

申请号：JP8108393

申请日：1993-03-17

Applicant: EBARA CORP

Inventor： IRIE KIICHI ,  FUJIMOTO MASAKAZU ,  TANAKA YOSHIHARU ,  KATO KYOICHI

IPC: F24F1/00 ,  F24F11/02

Abstract: PURPOSE:To provide a control method of an air conditioning apparatus for maintaining comfortable environment in a room by accomplishing accurate judgment on the cooling or heating of outside air. CONSTITUTION:This control method of an air conditioning apparatus is so arranged to provide an air conditioner 2 having a cold/hot water coil 4, a cold/hot water valve 5 and a supply air fan 6, an exhaust fan 8, an outside air gas 7 for introducing outside air and a total heat exchanger 3 to perform heat exchange between an exhaust and outside air introduced and a bypassing path 20 is provided for the total heat exchanger 3 of the exhaust or the outside air. Dampers 12, 13 and 14 are provided in the respective paths for the exhaust 18, the outside air and the bypassing 20. A room temperature setting device 17 is arranged in a room 1 and temperature sensors 23, 15 and 16 are arranged herein to measure a room temperature, the temperature of the air circulated and the temperature of the outside air and controllers 10 and 11 are provided to perform a control based on outputs thereof. A command is outputted to close the cold/hot water valve fully while the total heat exchanger will not perform heat exchange using the bypass when a weighted mean of the temperature is lower than the set temperature in the cooling operation and higher in the heating operation and when the room temperature is higher than the set temperature in the cooling operation and lower in the heating operation.

公开(公告)号：JPH06272937A

公开(公告)日：1994-09-27

申请号：JP8108193

申请日：1993-03-17

Applicant: EBARA CORP

Inventor： IRIE KIICHI ,  FUJIMOTO MASAKAZU ,  TANAKA YOSHIHARU ,  KATO KYOICHI

IPC: F24F1/00 ,  F24F11/02

Abstract: PURPOSE:To provide a control method of an air conditioning apparatus for maintaining comfortable environment in a room by preventing excessive drop in the room temperature. CONSTITUTION:This control method of an air conditioning apparatus is so arranged to provide an air conditioner 2 having a cold/hot water coil 4, a cold/hot water valve 5 and a supply air fan 6, an exhaust fan 8, an outside air fan 7 for introducing outside air and a total heat exchanger 3 for heat exchange between an exhaust and the outside air introduced. A bypass path 20 is provided for the total heat exchanger 3 of the exhaust or the outside air. Dampers 12, 13 and 14 are arranged separately in paths for the exhaust 18, the outside air 19 and bypassing 20. A room temperature setting device 17 is arranged in a room 1 and temperature sensors 23, 15 and 16 are arranged therein to measure the temperature in the room, the temperature of air circulated from inside the room and the temperature of the outside air. Controllers 10 and 11 are provided to perform a control based on outputs thereof. A command is outputted to output a fully closing signal to the cold/hot water valve when the temperature of the air circulated is lower than the set room temperature and the temperature of the outside air is high in the cooling operation and when the temperature thereof is higher than the set room temperature and the temperature of the outside air is low in the heating operation and to let the total heat exchanger perform a total heat exchange between the outside air and the exhaust simultaneously.

公开(公告)号：JPH06235546A

公开(公告)日：1994-08-23

申请号：JP4174893

申请日：1993-02-08

Applicant: EBARA CORP

Inventor： FUJIMOTO MASAKAZU ,  IRIE KIICHI ,  TANAKA YOSHIHARU ,  KATO KYOICHI

IPC: F24F11/02

Abstract: PURPOSE:To stably operate an air conditioner even at a low load by controlling an air quantity control device and a cold and hot water valve in accordance with a magnitude of load. CONSTITUTION:A control device 5 receives a signal from a temperature sensor 13, which detects a temperature in a room which is a space being subjected to air conditioning, and detects and controls a load. When the load detected by the control device 5 is 'great', a cold and hot water valve 4 is controlled so as to have a supply air temperature corresponding to a predetermined temperature and an air quantity control device 8 controls an air quantity so as to have a room temperature corresponding to a indoor target value. When the load detected by the control device 5 is 'small', the cold and hot water valve 4 is controlled so as to have a room temperature corresponding to the indoor target value, and the air quantity control device is controlled to maintain a predetermined opening degree. Therefore, it is possible to stably operate an air conditioner 1 even at a low load.

公开(公告)号：JPH06235544A

公开(公告)日：1994-08-23

申请号：JP4174993

申请日：1993-02-08

Applicant: EBARA CORP

Inventor： FUJIMOTO MASAKAZU ,  IRIE KIICHI ,  TANAKA YOSHIHARU ,  KATO KYOICHI

IPC: F24F11/02

Abstract: PURPOSE:To control a flow rate of cold and hot water by means of a simple air conditioning equipment without the provision of any bypass piping. CONSTITUTION:An air conditioning system comprises two or more air conditioners 3 having a cold and hot water coil 5 and a cold and hot water valve 6 for adjusting a flow rate of cold and hot water supplied to the cold and hot water coil, heat source machines 1 for supplying cold and hot water to the air conditioners 3, controls 2, 7 for controlling the respective instruments, a central control panel 10 for performing supervisory control on the controls, and transmission lines 9 for connecting the central control panel to the respective controls. When a sum of opening degrees of the cold and hot water valves of the respective air conditioners is equal to or less than a predetermined value during operation of the heat source machines, an opening signal is output to cold and hot water valves of those air conditioners, which are stopped, so that control is effected so as not to make the sum of the opening degrees equal to or less than the predetermined value. It is preferable that those air conditioners, to which an opening signal is to be output, are an air conditioner disposed on a distal end of a cold and hot water piping from the heat source machines and succeeding air conditioners.

公开(公告)号：JPH06137642A

公开(公告)日：1994-05-20

申请号：JP30976192

申请日：1992-10-26

Applicant: EBARA CORP

Inventor： FUJIMOTO MASAKAZU ,  IRIE KIICHI ,  TANAKA YOSHIHARU ,  KATO KYOICHI

IPC: F24F11/02 ,  F24F11/76 ,  G01F15/075

Abstract: PURPOSE:To provide a using amount detecting device for an air-conditioning system, capable of charing the expense for air conditioning fairly in accordance with the using condition of the same by grasping the operating condition of air conditioning correctly. CONSTITUTION:A detecting device for the using amount of air condition of an air-conditioning system is provided with an air volume control device 6, installed individually in an air-conditioning space to control the flow rate of air by the setting of a temperature setter, a detecting mechanism 7 for detecting the operating condition of the air volume control device 6 and an integrator 9 for integrating detected operating time and/or the flow rate of air. A set operation dividing time 10 is inputted into the integrator 9 whereby the operating time and/or the volume of air can be integrated in every operating divisions.

公开(公告)号：JPH05118619A

公开(公告)日：1993-05-14

申请号：JP27008391

申请日：1991-09-21

Applicant: EBARA CORP

Inventor： MAEDA KENSAKU ,  IRIE KIICHI ,  KOUDA KIMIO

IPC: F24F11/02

Abstract: PURPOSE:To keep the difference of the pressures in a space constant where is air-conditioned and a space where is not air-conditioned by detecting the pressure difference between the pressure in the air-conditioned space and the pressure in the air-unconditioned space and controlling the rotational speed of an exhaust fan and the rotational speed of an outdoor air introduction fan so as to bring the pressure difference to a specified value. CONSTITUTION:The pressure difference between the pressure in a space R that is air-conditioned and that in a space S where is not air-conditioned is measured by a pressure difference meter 26 and the difference is inputted to a controller 20. The controller 20 controls an inverter 21 so as to bring the pressure in the space R to a pressure higher than the pressure in the space S by a specified value, controls the rotational speed of an exhaust fan 3, and controls the exhaust blast volume to a specified volume. In this case an outdoor air fan 4 is not controlled so that an inverter 22 is not required. In the same way, it is possible to increase the pressure of the space R by a specified value than the pressure in the space S by controlling the inverter 22 of the outdoor air fan 4. In this case the inverter 21 of the exhaust fan 3 is not required.

公开(公告)号：JPH05113241A

公开(公告)日：1993-05-07

申请号：JP27008491

申请日：1991-09-21

Applicant: EBARA CORP

Inventor： IRIE KIICHI ,  KOUDA KIMIO

IPC: F24F11/02

Abstract: PURPOSE:To prevent occurrences of malfunction of sensor due to high temperature, dust, and high humidity by installing sensors for control of air conditioner on the downstream side of a prefilter for return air and on the upstream side of a mixing part of return air and fresh air. CONSTITUTION:An air conditioner includes a suction fan 1, an exhaust fan 3, and an outside air fan 4, each of which can be operated at variable speed by an inverter 2, a main filter 5, a low hot water coil 6, and a total heat exchanger 7. Return air from a room to be air-conditioned passes through a prefilter 8 for return air and is divided into two portions from a section 9, one portion of which is passed through an exhaust damper 10 and the total heat exchanger 7 to be discharged, while the other portion is mixed with outside air at the section 9 and then passed through a supply air passage and supplied into the room to be air-conditioned. Temperature sensors 21-23 for supply air, return air, and outside air, CO2 sensor 24, humidity sensor 25, supply air pressure sensor 26, and differential pressure sensors 27-29 are installed on the downstream side of the prefilter 8 and the upstream side of a mixing part of return air and outside air, thereby preventing high temperature, high humidity, and dust.

公开(公告)号：JPH04257649A

公开(公告)日：1992-09-11

申请号：JP3884991

申请日：1991-02-12

Applicant: EBARA CORP

Inventor： MAEDA KENSAKU ,  IRIE KIICHI ,  INOUE OSAYUKI

IPC: F24F11/02

Abstract: PURPOSE:To increase relatively an air supply quantity which is required to manage air conditioning load for a living room to make it possible to increase an outside air introduction quantity by decreasing a heat transfer capacity of an air heat exchanger in an air conditioner, in response to the increase of a contamination degree of air in the living room. CONSTITUTION:An air contamination sensor 30, which detects a contamination degree of air in an air conditioning devision in which an air conditioner 1 performs air conditioning, is provided, and at the same time, an effective heat transfer area of an air heat exchanger 3 is made variable, and the effective heat transfer area of the air heat exchanger 3 is changed base on a detection signal of the air contamination sensor 30. Air contamination in a living room is quickly removed, and at the same time, air contamination is prevented from generating, and the inside of the living room can be kept at a suitable temperature.

公开(公告)号：JP2008312330A

公开(公告)日：2008-12-25

申请号：JP2007156849

申请日：2007-06-13

Applicant: Ebara Corp ,  株式会社荏原製作所

Inventor： UCHIMURA TOMOYUKI ,  IRIE KIICHI ,  INOUE OSAYUKI

IPC: H02P9/04

CPC classification number: Y02E20/14

Abstract: PROBLEM TO BE SOLVED: To provide a waste heat power generating apparatus which prevents overspeeding in the expander and the generator, and an overload in the generator, by suppressing the capacity of the generator to the minimum, while keeping the speed of the turbine generator fixed, without having to depend on a governing valve, and to provide an operation method for the waste heat power generating apparatus. SOLUTION: The waste hear power generating device is constituted, in a manner such that a waste heat medium from a waste heat source 30 is introduced into a steam generator 11; the generated working medium steam is introduced into the expander (turbine 14); power is generated by driving the high-speed generator 15, by using the expander; the working medium steam discharged from the expander is introduced into a condenser 17; the working medium steam is cooled and condensed by a low-heat medium from a low-heat source (cooling tower 40); a condensed working medium liquid is fed to the steam generator 11; and so that the working medium circulates in the device. In the waste heat power generating device, an overspeed/overload preventing means is arranged which prevents overspeeding and overloading in the expander and generator, by suppressing a circulation volume of the working medium, when the output of the generator or the speed of the generator attempts to exceed a prescribed value. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种废热发电装置，通过将发电机的容量抑制在最小范围内，防止膨胀机和发电机的超速，以及发电机的过载，同时保持发电机的速度 涡轮发电机固定，而不必依赖于调节阀，并提供废热发电装置的操作方法。 解决方案：废弃物听力发电装置的构成是将来自废热源30的废热介质引入蒸汽发生器11中; 所产生的工作介质蒸汽被引入到膨胀机（涡轮机14）中; 通过使用扩展器驱动高速发生器15产生电力; 将从膨胀机排出的工作介质蒸气引入冷凝器17; 工作介质蒸汽由低热源（冷却塔40）由低热介质冷却和冷凝; 冷凝的工作介质液体被供给到蒸汽发生器11; 并使工作介质在设备中循环。 在废热发电装置中，设置超速/过载防止装置，通过抑制发电机的输出或发电机的转速尝试，通过抑制工作介质的循环量来防止膨胀机和发电机中的超速和过载 超过规定值。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008309046A

公开(公告)日：2008-12-25

申请号：JP2007156850

申请日：2007-06-13

Applicant: Ebara Corp ,  株式会社荏原製作所

Inventor： UCHIMURA TOMOYUKI ,  IRIE KIICHI ,  INOUE OSAYUKI

IPC: F01K23/06

CPC classification number: Y02P80/154

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust heat power generation device capable of materializing maximization of the quantity of recovery heat, maintenance of heat transmission efficiency of a steam generator, and inhibition of liquid dropping in working medium steam.
SOLUTION: In the exhaust heat power generation device provided with a plate type heat exchanger as the steam generator, introducing exhaust heat medium from an exhaust heat source 30 to the steam generator 11, leading generated working medium steam to a turbine generator 16, generating electric power by driving the turbine generator 16, leading discharged working medium steam to a condenser 17, cooling and condensing working medium steam by low heat medium from a low heat source (cooling tower 40), and supplying the steam generator 11 with the condensed working medium liquid, degree of superheating of the working medium steam at a steam discharge port or section corresponding to the same of the steam generator 11 is controlled to a predetermined target value by increasing and decreasing quantity of working medium liquid supplied to the steam generator 11.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供能够实现回收热量最大化，维持蒸汽发生器的传热效率以及抑制工作介质蒸汽中的液体滴落的废热发电装置。 解决方案：在具有作为蒸汽发生器的板式热交换器的排气热发电装置中，将排气热介质从排气热源30引入蒸汽发生器11，将产生的工作介质蒸汽引导到涡轮发电机16 通过驱动涡轮发电机16产生电力，将排出的工作介质蒸汽引导到冷凝器17，从低热源（冷却塔40）冷却和冷凝来自低热介质的工作介质蒸汽，以及向蒸汽发生器11供应 冷凝工作介质液体，通过增加和减少供给到蒸汽发生器的工作介质液体的量，将蒸汽排出口或对应于蒸汽发生器11的部分的工作介质蒸汽的过热度控制在预定目标值 11.版权所有（C）2009，JPO＆INPIT