JP2924998B2 - Hot air heater - Google Patents
Hot air heaterInfo
- Publication number
- JP2924998B2 JP2924998B2 JP7004457A JP445795A JP2924998B2 JP 2924998 B2 JP2924998 B2 JP 2924998B2 JP 7004457 A JP7004457 A JP 7004457A JP 445795 A JP445795 A JP 445795A JP 2924998 B2 JP2924998 B2 JP 2924998B2
- Authority
- JP
- Japan
- Prior art keywords
- room temperature
- temperature
- reference temperature
- heating source
- heating
- 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.)
- Expired - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 claims description 96
- 238000010926 purge Methods 0.000 claims description 54
- 238000002485 combustion reaction Methods 0.000 description 82
- 238000000034 method Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2085—Arrangement or mounting of control or safety devices for air heaters using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/022—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0073—Arrangement or mounting of means for forcing the circulation of air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/02—Casings; Cover lids; Ornamental panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1881—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Control Of Combustion (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は温風暖房機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air heater.
【０００２】[0002]
【従来の技術】従来より、加熱源としてガスバーナを収
容した燃焼室と、該燃焼室に連なる熱交換部と、熱交換
部を有し、吸込口及び吹出口を連絡する送風通路と、該
送風通路内に配される対流ファンとを本体ケース内に配
設したＦＦ式のガス温風暖房機が知られている。2. Description of the Related Art Conventionally, a combustion chamber accommodating a gas burner as a heating source, a heat exchange section connected to the combustion chamber, an air passage having a heat exchange section and communicating with a suction port and an air outlet, 2. Description of the Related Art There is known an FF type gas warm air heater in which a convection fan disposed in a passage is disposed in a main body case.
【０００３】このガス温風暖房機では、燃焼室の上流側
には本体ケースの外部に延設された吸気筒が接続され、
下流側には熱交換部を経て排気筒が接続されている。対
流ファンは、吸込口を介して室内空気を吸引するととも
に、熱交換部により昇温した室内空気を吹出口から室内
に送風する。室温センサは例えば吸込口の近くに配設さ
れ、室温設定器が本体ケースの操作部内に設けられてい
る。In this gas hot air heater, an intake cylinder extending outside the main body case is connected to the upstream side of the combustion chamber,
An exhaust pipe is connected to the downstream side via a heat exchange section. The convection fan sucks the room air through the suction port and sends the room air heated by the heat exchange section into the room from the outlet. The room temperature sensor is disposed, for example, near the suction port, and the room temperature setting device is provided in the operation unit of the main body case.
【０００４】燃焼制御器は、温度センサが検出する検出
温度が、室温設定器で設定した目標温度になる様に、ガ
ス供給路に設けられた比例弁の開度を、無段階又は複数
段階に制御している。しかし、最大燃焼量が大きい温風
暖房機の場合には、燃焼制御器がガスバーナの燃焼量を
最小にしても室温が設定温度を越える事がある｛室温が
比較的高く、設定室温を比較的低く設定した場合等｝。[0004] The combustion controller adjusts the opening of the proportional valve provided in the gas supply path in a stepless manner or in a plurality of steps so that the temperature detected by the temperature sensor becomes the target temperature set by the room temperature setting device. Controlling. However, in the case of a warm air heater with a large maximum combustion amount, even if the combustion controller minimizes the gas burner combustion amount, the room temperature may exceed the set temperature. For example, when setting low.
【０００５】この事態は、検出室温が所定温度を越えた
場合に、ガスバーナの燃焼を一旦停止する燃焼制御器を
設ければ解決する。具体的には、燃焼中に検出室温が、
設定室温に応じて決定された第一基準温度を越えると燃
焼制御器がガスバーナの燃焼を停止し、その後、検出室
温が第一基準温度より低い第二基準温度以下に低下する
と燃焼を再開する。[0005] This situation can be solved by providing a combustion controller for temporarily stopping the combustion of the gas burner when the detected room temperature exceeds a predetermined temperature. Specifically, the detected room temperature during combustion,
When the temperature exceeds the first reference temperature determined according to the set room temperature, the combustion controller stops the combustion of the gas burner. Thereafter, when the detected room temperature falls below the second reference temperature lower than the first reference temperature, the combustion restarts.
【０００６】[0006]
【発明が解決しようとする課題】しかるに、本願発明者
らは、上記燃焼制御器を設けた温風暖房機は、以下に示
す様な不具合がある事を見い出した。温風暖房機におい
ては、ガスバーナの燃焼が停止すると、所定時間が経過
するか、又は機内の温度が所定温度以下に低下するま
で、対流ファンの作動を継続して（所謂、ポストパー
ジ）、機内過熱の防止を図っている。However, the present inventors have found that the hot air heater provided with the above-mentioned combustion controller has the following disadvantages. In the hot air heater, when the combustion of the gas burner is stopped, the operation of the convection fan is continued until a predetermined time elapses or until the temperature in the machine falls below the predetermined temperature (so-called post-purge). We are trying to prevent overheating.
【０００７】このポストパージ中は、対流ファンが作動
する為、室温センサには室内の空気が流れるので室温を
正確に検出する事ができる。しかし、ポストパージが終
了すると、対流ファンが停止するので、室内の空気が室
温センサに流れなくなる。During the post-purge, the convection fan operates, and the room air flows through the room temperature sensor, so that the room temperature can be accurately detected. However, when the post-purge is completed, the convection fan stops, and the room air stops flowing to the room temperature sensor.
【０００８】この為、ポストパージ終了後に室温センサ
が検出する検出室温の変化は、通常、実際の室温の変化
に対してずれてくる｛図４の実線及び二点鎖線を参
照｝。従って、実際の室温が第二基準温度以下に低下し
て、燃焼を再開すべき時点に来ているのに室温センサに
よる検出室温が第二基準温度を越えて検出されるという
現象が起きる。この場合、燃焼が再開されないので使用
者は寒さを感じる。For this reason, the change in the detected room temperature detected by the room temperature sensor after the end of the post-purge usually deviates from the actual change in the room temperature (see the solid line and the two-dot chain line in FIG. 4). Accordingly, a phenomenon occurs in which the room temperature detected by the room temperature sensor exceeds the second reference temperature even though the actual room temperature falls below the second reference temperature and the time has come to restart combustion. In this case, the user feels cold because combustion is not resumed.
【０００９】尚、ポストパージ終了後も対流ファンを連
続的又は間欠的に作動させれば上記の現象は起こらなく
なるが、温風暖房機から冷風が吹き出され、使用者に不
快感を与える。尚、前述した従来の技術においては、加
熱源としてガスバーナを示したが、加熱源が電気ヒータ
等であっても同様の課題がある。If the convection fan is operated continuously or intermittently even after the end of the post-purge, the above phenomenon does not occur, but the cool air is blown out from the warm air heater to give a user discomfort. Note that, in the above-described conventional technology, a gas burner is shown as a heating source, but there is a similar problem even if the heating source is an electric heater or the like.
【００１０】本発明の目的は、検出室温が所定温度を越
えた場合に加熱源の作動を一旦停止させるとともに、所
定時間又は機内温度が所定温度以下に低下するまでの
間、対流ファンを継続作動させるポストパージを行う温
風暖房機において、使用者に不快感を与える事無く、室
温制御が適格に行われる様にする事にある。[0010] It is an object of the present invention to temporarily stop the operation of the heating source when the detected room temperature exceeds a predetermined temperature, and to continuously operate the convection fan for a predetermined time or until the inside temperature of the apparatus falls below the predetermined temperature. In a hot air heater that performs post-purging, room temperature control is appropriately performed without causing discomfort to a user.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決する為、
本発明は、以下の構成を採用した。 （１）吸込口及び吹出口を有するハウジングと、該ハウ
ジング内に配される加熱源と、前記吸込口から室内空気
を吸い込み、前記加熱源により昇温した室内空気を温風
として前記吹出口から吹き出させる対流ファンと、前記
吸込口の近傍に配される、室温を検出する室温センサ
と、室温を設定する室温設定器と、前記設定室温に基づ
いて、第一、第二基準温度を決定する基準温度決定部を
有し、前記検出室温が前記第一基準温度を越える場合に
は前記加熱源の作動を一旦停止させるとともに、所定時
間の間、前記対流ファンを継続作動させるポストパージ
を行い、この加熱停止中に前記検出室温が前記第一基準
温度より低い第二基準温度以下に低下すると、前記加熱
源の作動を再開する加熱制御手段とを具備する温風暖房
機において、前記加熱制御手段は、前記ポストパージが
終了すると、前記第二基準温度を、ポストパージ中の第
二基準温度より高い温度に変更する基準温度変更部を有
する事。In order to solve the above-mentioned problems,
The present invention employs the following configuration. (1) A housing having a suction port and an air outlet, a heating source disposed in the housing, and room air sucked from the air inlet, and the room air heated by the heating source is heated as hot air from the air outlet. A convection fan to be blown out, a room temperature sensor arranged near the suction port for detecting room temperature, a room temperature setting device for setting room temperature, and first and second reference temperatures are determined based on the set room temperature. Having a reference temperature determination unit, when the detected room temperature exceeds the first reference temperature, temporarily suspend the operation of the heating source, for a predetermined time, perform a post-purge to continue operating the convection fan, When the detected room temperature falls below a second reference temperature lower than the first reference temperature during the stop of the heating, a heating control means for restarting the operation of the heating source is provided. Control means, when the post-purge is completed, the second reference temperature, it has a reference temperature changing unit that changes a temperature higher than the second reference temperature during post-purge.
【００１２】（２）吸込口及び吹出口を有するハウジン
グと、該ハウジング内に配される加熱源と、前記吸込口
から室内空気を吸い込み、前記加熱源により昇温した室
内空気を温風として前記吹出口から吹き出させる対流フ
ァンと、前記吸込口の近傍に配される、室温を検出する
室温センサと、室温を設定する室温設定器と、前記設定
室温に基づいて、第一、第二基準温度を決定する基準温
度決定部を有し、前記検出室温が前記第一基準温度を越
える場合には前記加熱源の作動を一旦停止させるととも
に、機内温度が所定温度以下に低下するまでの間、前記
対流ファンを継続作動させるポストパージを行い、この
加熱停止中に前記検出室温が前記第一基準温度より低い
第二基準温度以下に低下すると、前記加熱源の作動を再
開する加熱制御手段とを具備する温風暖房機において、
前記加熱制御手段は、前記ポストパージが終了すると、
前記第二基準温度を、ポストパージ中の第二基準温度よ
り高い温度に変更する基準温度変更部を有する。(2) A housing having a suction port and an air outlet, a heating source disposed in the housing, and indoor air sucked from the suction port, and the room air heated by the heating source is converted into warm air. A convection fan that blows out from the outlet, a room temperature sensor that is disposed near the suction port and detects a room temperature, a room temperature setting device that sets a room temperature, and a first and second reference temperature based on the set room temperature. When the detected room temperature exceeds the first reference temperature, the operation of the heating source is temporarily stopped, and until the in-machine temperature decreases to a predetermined temperature or less, A post-purge for continuously operating the convection fan is performed, and when the detected room temperature falls to or below the second reference temperature lower than the first reference temperature during this heating stop, a heating control means for restarting the operation of the heating source. In the warm-air heating machine having a door,
When the post-purge is completed, the heating control means
A reference temperature changing unit configured to change the second reference temperature to a temperature higher than the second reference temperature during the post-purge.
【００１３】（３）上記(1) 又は(2) の構成を有し、前
記基準温度決定部が決定する前記第一基準温度は、前記
室温設定器で設定した設定室温より高く、前記基準温度
決定部が決定する前記第二基準温度は、前記室温設定器
で設定した設定室温に等しく、前記基準温度変更部が変
更する第二基準温度は、前記第一基準温度に等しい。(3) The first reference temperature having the configuration of the above (1) or (2), wherein the first reference temperature determined by the reference temperature determination section is higher than a set room temperature set by the room temperature setting device, and The second reference temperature determined by the determination unit is equal to the set room temperature set by the room temperature setting device, and the second reference temperature changed by the reference temperature change unit is equal to the first reference temperature.
【００１４】（４）吸込口及び吹出口を有するハウジン
グと、該ハウジング内に配される加熱源と、前記吸込口
から室内空気を吸い込み、前記加熱源により昇温した室
内空気を温風として前記吹出口から吹き出させる対流フ
ァンと、前記吸込口の近傍に配される、室温を検出する
室温センサと、室温を設定する室温設定器と、前記設定
室温に基づいて、第一、第二基準温度を決定する基準温
度決定部を有し、前記検出室温が前記第一基準温度を越
える場合には前記加熱源の作動を一旦停止させるととも
に、所定時間の間、前記対流ファンを継続作動させるポ
ストパージを行い、この加熱停止中に前記検出室温が前
記第一基準温度より低い第二基準温度以下に低下する
と、前記加熱源の作動を再開する加熱制御手段とを具備
する温風暖房機において、前記加熱制御手段は、前記ポ
ストパージが終了すると、前記室温センサで検出される
温度より低い温度に前記検出室温を補正して前記第二基
準温度と比較する。(4) A housing having a suction port and an air outlet, a heating source disposed in the housing, and room air sucked from the suction port, and the room air heated by the heating source is turned into hot air. A convection fan that blows out from the outlet, a room temperature sensor that is disposed near the suction port and detects a room temperature, a room temperature setting device that sets a room temperature, and a first and second reference temperature based on the set room temperature. A post-purge for temporarily stopping the operation of the heating source and continuously operating the convection fan for a predetermined time when the detected room temperature exceeds the first reference temperature. When the detected room temperature falls below the second reference temperature lower than the first reference temperature during the heating stop, a heating control means for restarting the operation of the heating source is provided. Te, the heating control means, when the post-purge is completed, the detecting room temperature correction to the said temperature lower than the temperature detected by the temperature sensor is compared with the second reference temperature.
【００１５】（５）吸込口及び吹出口を有するハウジン
グと、該ハウジング内に配される加熱源と、前記吸込口
から室内空気を吸い込み、前記加熱源により昇温した室
内空気を温風として前記吹出口から吹き出させる対流フ
ァンと、前記吸込口の近傍に配される、室温を検出する
室温センサと、室温を設定する室温設定器と、前記設定
室温に基づいて、第一、第二基準温度を決定する基準温
度決定部を有し、前記検出室温が前記第一基準温度を越
える場合には前記加熱源の作動を一旦停止させるととも
に、機内温度が所定温度以下に低下するまでの間、前記
対流ファンを継続作動させるポストパージを行い、この
加熱停止中に前記検出室温が前記第一基準温度より低い
第二基準温度以下に低下すると、前記加熱源の作動を再
開する加熱制御手段とを具備する温風暖房機において、
前記加熱制御手段は、前記ポストパージが終了すると、
前記室温センサで検出される温度より低い温度に前記検
出室温を補正して前記第二基準温度と比較する。(5) A housing having a suction port and an air outlet, a heating source disposed in the housing, and room air sucked from the suction port, and the room air heated by the heating source is converted into warm air. A convection fan that blows out from the outlet, a room temperature sensor that is disposed near the suction port and detects a room temperature, a room temperature setting device that sets a room temperature, and a first and second reference temperature based on the set room temperature. When the detected room temperature exceeds the first reference temperature, the operation of the heating source is temporarily stopped, and until the in-machine temperature decreases to a predetermined temperature or less, A post-purge for continuously operating the convection fan is performed, and when the detected room temperature falls to or below the second reference temperature lower than the first reference temperature during this heating stop, a heating control means for restarting the operation of the heating source. In the warm-air heating machine having a door,
When the post-purge is completed, the heating control means
The detected room temperature is corrected to a temperature lower than the temperature detected by the room temperature sensor and is compared with the second reference temperature.
【００１６】[0016]
〔請求項１、２について〕対流ファンは、吸込口から室
内空気を吸い込み、加熱源により昇温した室内空気が温
風として吹出口から吹き出される。加熱制御手段の基準
温度決定部は、室温設定器で設定した設定室温に基づい
て、第一基準温度、第二基準温度を決定する。加熱制御
手段は、検出室温が第一基準温度を越える場合には加熱
源の作動を一旦停止させるとともに、所定時間の間｛請
求項２の場合は、機内温度が所定温度以下に低下するま
での間｝、対流ファンを継続作動させるポストパージを
行う。[Concerning Claims 1 and 2] The convection fan draws indoor air from the inlet, and the room air heated by the heating source is blown out from the outlet as warm air. The reference temperature determining section of the heating control means determines a first reference temperature and a second reference temperature based on the set room temperature set by the room temperature setting device. The heating control means temporarily stops the operation of the heating source when the detected room temperature exceeds the first reference temperature, and for a predetermined period of time. Meanwhile, post-purge is performed to continuously operate the convection fan.
【００１７】ポストパージ中は、対流ファンが回転して
いるので、吸込口の近傍に配される室温センサに室内空
気が流れ、室温は正確に検出される。そして、ポストパ
ージ中に検出室温が第二基準温度以下に低下すると、加
熱制御手段が加熱源の作動を再開する。During the post-purge, since the convection fan is rotating, the room air flows to the room temperature sensor disposed near the suction port, and the room temperature is accurately detected. Then, when the detected room temperature falls below the second reference temperature during the post-purge, the heating control means restarts the operation of the heating source.
【００１８】又、検出室温が第二基準温度まで低下しな
いうちに所定時間｛請求項２の場合は、機内温度が所定
温度以下に低下するまでの間｝が経過すると、ポストパ
ージが終了して対流ファンの回転が停止するので室内の
空気が室温センサに流れなくなる。この為、室温センサ
が検出する検出室温は、実際の室温より高めに検出され
る。しかし、ポストパージが終了すると、基準温度変更
部が第二基準温度を、ポストパージ中の第二基準温度よ
り高い温度に変更するので、実際の室温が加熱源の作動
を再開すべき温度低下した状態に近い時点で加熱制御手
段が加熱源の作動を再開する。If a predetermined period of time before the detected room temperature does not drop to the second reference temperature (in the case of claim 2 until the internal temperature of the apparatus falls below the predetermined temperature) has elapsed, the post-purge is terminated. Since the rotation of the convection fan stops, the room air does not flow to the room temperature sensor. For this reason, the detected room temperature detected by the room temperature sensor is detected higher than the actual room temperature. However, when the post-purge is completed, the reference temperature change unit changes the second reference temperature to a temperature higher than the second reference temperature during the post-purge, so that the actual room temperature has dropped to the point where the operation of the heating source should be resumed. At a point near the state, the heating control means restarts the operation of the heating source.
【００１９】この様に、本構成を採用した温風暖房機で
は、室温制御が適格に行われるので、使用者に寒さを感
じさせない。又、冷風を吹き出さないので、使用者に不
快感を与えない。As described above, in the warm air heater adopting this configuration, since the room temperature control is performed appropriately, the user does not feel cold. Further, since no cool air is blown out, the user does not feel uncomfortable.
【００２０】〔請求項３について〕対流ファンは、吸込
口から室内空気を吸い込み、加熱源により昇温した室内
空気が温風として吹出口から吹き出される。加熱制御手
段の基準温度決定部は、室温設定器で設定した設定室温
に基づき、第一基準温度を設定室温より高く、又、第二
基準温度を設定室温と同じ温度に決定する。[Claim 3] The convection fan draws indoor air from the inlet, and the room air heated by the heating source is blown out from the outlet as warm air. The reference temperature determining unit of the heating control means determines the first reference temperature to be higher than the set room temperature and sets the second reference temperature to the same temperature as the set room temperature, based on the set room temperature set by the room temperature setter.
【００２１】加熱制御手段は、検出室温が第一基準温度
を越える場合には加熱源の作動を一旦停止させるととも
に、所定時間の間｛又は、機内温度が所定温度以下に低
下するまでの間｝、対流ファンを継続作動させるポスト
パージを行う。When the detected room temperature exceeds the first reference temperature, the heating control means temporarily stops the operation of the heating source and waits for a predetermined period of time (or until the temperature inside the device falls below the predetermined temperature). Then, post-purge is performed to continuously operate the convection fan.
【００２２】ポストパージ中は、対流ファンが回転して
いるので、吸込口の近傍に配される室温センサに室内空
気が流れ、室温は正確に検出される。そして、ポストパ
ージ中に検出室温が第二基準温度以下（＝設定室温以
下）に低下すると、加熱制御手段が加熱源の作動を再開
する。During the post-purge, since the convection fan is rotating, the room air flows to the room temperature sensor disposed near the suction port, and the room temperature is accurately detected. Then, when the detected room temperature falls below the second reference temperature (= below the set room temperature) during the post-purge, the heating control means restarts the operation of the heating source.
【００２３】又、検出室温が第二基準温度（＝設定室
温）まで低下しないうちに所定時間｛請求項２の場合
は、機内温度が所定温度以下に低下するまでの間｝が経
過すると、ポストパージが終了して対流ファンの回転が
停止するので室内の空気が室温センサに流れなくなる。
この為、室温センサが検出する検出室温は、実際の室温
より高めに検出される。When a predetermined period of time before the detected room temperature does not decrease to the second reference temperature (= set room temperature) (in the case of the second aspect, until the temperature inside the machine falls below the predetermined temperature), the post After the purge is completed, the rotation of the convection fan stops, so that the room air does not flow to the room temperature sensor.
For this reason, the detected room temperature detected by the room temperature sensor is detected higher than the actual room temperature.
【００２４】しかし、ポストパージが終了すると、基準
温度変更部が、第二基準温度を、ポストパージ中の第二
基準温度（＝設定室温）より高い第一基準温度に変更す
るので、実際の室温が加熱源の作動を再開すべき温度に
低下した時点で加熱制御手段が加熱源の作動を再開す
る。However, when the post-purge is completed, the reference temperature change unit changes the second reference temperature to the first reference temperature higher than the second reference temperature (= set room temperature) during the post-purge, so that the actual room temperature is changed. When the temperature drops to a temperature at which the operation of the heating source should be restarted, the heating control means restarts the operation of the heating source.
【００２５】この様に、本構成を採用した温風暖房機で
は、室温制御が適格に行われるので、使用者に寒さを感
じさせない。又、冷風を吹き出さないので、使用者に不
快感を与えない。As described above, in the warm air heater adopting this configuration, since the room temperature control is appropriately performed, the user does not feel cold. Further, since no cool air is blown out, the user does not feel uncomfortable.
【００２６】〔請求項４、５について〕対流ファンは、
吸込口から室内空気を吸い込み、加熱源により昇温した
室内空気が温風として吹出口から吹き出される。加熱制
御手段の基準温度決定部は、室温設定器で設定した設定
室温に基づいて、第一基準温度、第二基準温度を決定す
る。加熱制御手段は、検出室温が第一基準温度を越える
場合には加熱源の作動を一旦停止させるとともに、所定
時間の間、対流ファンを継続作動させるポストパージを
行う。[Claims 4 and 5] The convection fan is
Room air is drawn in from the inlet, and the room air heated by the heating source is blown out from the outlet as warm air. The reference temperature determining section of the heating control means determines a first reference temperature and a second reference temperature based on the set room temperature set by the room temperature setting device. When the detected room temperature exceeds the first reference temperature, the heating control means temporarily stops the operation of the heating source and performs post-purge for continuously operating the convection fan for a predetermined time.
【００２７】ポストパージ中は、対流ファンが回転して
いるので、吸込口の近傍に配される室温センサに室内空
気が流れ、室温は正確に検出される。そして、ポストパ
ージ中に検出室温が第二基準温度以下に低下すると、加
熱制御手段が加熱源の作動を再開する。During the post-purge, the convection fan is rotating, so that room air flows to the room temperature sensor disposed near the suction port, and the room temperature is accurately detected. Then, when the detected room temperature falls below the second reference temperature during the post-purge, the heating control means restarts the operation of the heating source.
【００２８】又、検出室温が第二基準温度まで低下しな
いうちに所定時間｛請求項４の場合は、機内温度が所定
温度以下に低下するまでの間｝が経過すると、ポストパ
ージが終了して対流ファンの回転が停止するので室内の
空気が室温センサに流れなくなる。この為、室温センサ
が検出する検出室温は、実際の室温より高めに検出され
る。しかし、ポストパージが終了すると、加熱制御手段
が、温度センサで検出される温度より低い温度に検出室
温を補正して、第二基準温度と比較するので、実際の室
温が加熱源の作動を再開すべき温度低下した状態に近い
時点で加熱源の作動が再開される。If a predetermined period of time before the detected room temperature does not decrease to the second reference temperature (in the case of claim 4 until the internal temperature of the apparatus falls below the predetermined temperature) has elapsed, post-purge is terminated. Since the rotation of the convection fan stops, the room air does not flow to the room temperature sensor. For this reason, the detected room temperature detected by the room temperature sensor is detected higher than the actual room temperature. However, when the post-purge is completed, the heating control unit corrects the detected room temperature to a temperature lower than the temperature detected by the temperature sensor and compares the corrected room temperature with the second reference temperature, so that the actual room temperature resumes the operation of the heating source. The operation of the heating source is restarted at a point near the state where the temperature to be lowered has been reached.
【００２９】この様に、本構成を採用した温風暖房機で
は、室温制御が適格に行われるので、使用者に寒さを感
じさせない。又、冷風を吹き出さないので、使用者に不
快感を与えない。As described above, in the warm air heater adopting this configuration, since the room temperature control is appropriately performed, the user does not feel cold. Further, since no cool air is blown out, the user does not feel uncomfortable.
【００３０】[0030]
【実施例】本発明の一実施例（請求項１、３に対応）を
図１〜図４に基づいて説明する。図に示す、ＦＦ式ガス
温風暖房機Ａは、吸込口１１及び吹出口１２を有するハ
ウジング１と、ガスが供給されて燃焼する燃焼器２と、
温風３０を吹出口１２から吹き出させる対流ファン３
と、室温を検出する室温センサ４と、室温を設定する室
温設定器５と、燃焼器２の燃焼量を指示する第一燃焼制
御手段６と、設定室温Ｔｓに基づいて第一基準温度Ｔ1
及び第二基準温度Ｔ2 を設定する基準温度決定部７１、
並びにポストパージが終了すると第二基準温度Ｔ2 を変
更する基準温度変更部７２を有し、燃焼器２の燃焼継続
や燃焼停止、対流ファン３の作動や停止を指示する第二
燃焼制御手段７（加熱制御手段）とを有する。又、８は
燃焼ファン、９は制御ユニット、１３は温風通路、１４
は燃焼空気通路である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention (corresponding to claims 1 and 3) will be described with reference to FIGS. The FF type gas hot air heater A shown in the figure has a housing 1 having an inlet 11 and an outlet 12, a combustor 2 to which gas is supplied and burns,
Convection fan 3 for blowing hot air 30 from outlet 12
A room temperature sensor 4 for detecting a room temperature, a room temperature setting device 5 for setting a room temperature, a first combustion control means 6 for instructing a combustion amount of the combustor 2, and a first reference temperature T 1 based on the set room temperature Ts.
And a reference temperature determining unit 71 for setting the second reference temperature T 2 ,
And a reference temperature change unit 72 for changing the second reference temperature T 2 when the post-purge is completed, and the second combustion control means 7 for instructing continuation or stop of combustion of the combustor 2 and operation or stop of the convection fan 3. (Heating control means). 8 is a combustion fan, 9 is a control unit, 13 is a hot air passage, 14
Is a combustion air passage.
【００３１】温風通路１３は、ハウジング１の背面上部
に開口して室内空気１０を吸入する吸込口１１と、ハウ
ジング１の前面下部に開口して室内に温風３０を吹き出
す吹出口１２との連通路である。又、吸込口１１には室
内の粉塵を除去する為のフィルタ１１１が着脱自在に配
され、又吹出口１２には温風３０の吹出方向を変える為
のガイド板３０１が組み付けられている。The hot air passage 13 has a suction opening 11 opened at the upper rear part of the housing 1 to suck the room air 10 and an outlet 12 opened at the lower front part of the housing 1 to blow the warm air 30 into the room. It is a communication passage. A filter 111 for removing dust in the room is detachably provided at the suction port 11, and a guide plate 301 for changing a blowing direction of the warm air 30 is attached to the outlet 12.
【００３２】燃焼空気通路１４は、上流端側及び下流端
側が、室外に延設される二重構造の吸・排気ダクトの取
込口、排気口に各々連絡する通路であり、燃焼器２を内
設する燃焼室２１、及び燃焼により発生した燃焼排ガス
２２の熱を空気流１５中に放出する熱交換部１４１を通
路中に形成している。尚、燃焼室２１及び熱交換部１４
１は温風通路１３内に位置している。The combustion air passage 14 is a passage whose upstream end and downstream end communicate with the intake and exhaust ports of a double-structured intake / exhaust duct extending outside, respectively. A heat exchange section 141 for releasing the heat of the combustion chamber 21 provided therein and the combustion exhaust gas 22 generated by the combustion into the airflow 15 is formed in the passage. The combustion chamber 21 and the heat exchange unit 14
1 is located in the hot air passage 13.
【００３３】燃焼器２は、混合気を吐出する炎口２３１
を先端に形成し、一次空気とガスとを吸入する混合気吸
込口２３２を基端に形成したガスバーナ２３、２３…
と、該ガスバーナ２３の混合気吸込口２３２にノズル２
４１、２４１…を臨ませたガス管２４とを有し、該ガス
管２４には電磁弁２５、２６、ガス比例弁２７を順次、
連設したガス管路ｇによりガスが供給されて強制燃焼す
る。又、スパーカ２８は、ガスバーナ２３に臨んで配さ
れ、点火動作の際にスパーカ駆動回路２８１により高電
圧が印加されると、ガスバーナ２３の点火を行う。The combustor 2 has a flame outlet 231 for discharging an air-fuel mixture.
Are formed at the front end, and gas burners 23, 23... Formed at the base end with a mixture inlet 232 for sucking primary air and gas.
And the nozzle 2 in the gas mixture inlet 232 of the gas burner 23.
41, 241,..., And a solenoid valve 25, 26 and a gas proportional valve 27 are sequentially provided in the gas pipe 24.
Gas is supplied by the gas line g connected continuously and is forcibly burned. The sparker 28 is arranged facing the gas burner 23, and ignites the gas burner 23 when a high voltage is applied by the sparker drive circuit 281 during the ignition operation.
【００３４】燃焼ファン８は、空気の流れに対して燃焼
器２より上流側で燃焼空気通路１４内に枢着される羽根
車８１と、該羽根車８１を駆動する燃焼ファンモータ８
２（直流モータ）とで構成され、取り込んだ室内空気１
０をガスバーナ２３に供給する。この燃焼ファン８は、
燃焼ファン駆動回路８２１を介して通電され、点火時に
は点火回転数で回転し、温調時には必要燃焼量に見合っ
た燃焼用空気が得られる温調回転数（１３００ｒｐｍ〜
３６００ｒｐｍ）で回転する。The combustion fan 8 includes an impeller 81 pivotally mounted in the combustion air passage 14 upstream of the combustor 2 with respect to the flow of air, and a combustion fan motor 8 for driving the impeller 81.
2 (DC motor) and the indoor air 1
0 is supplied to the gas burner 23. This combustion fan 8
Electricity is supplied through the combustion fan drive circuit 821, the engine rotates at the ignition speed during ignition, and the temperature control speed (1300 rpm or more) at which the combustion air corresponding to the required combustion amount is obtained during temperature control.
3600 rpm).
【００３５】ガス比例弁２７は、通電量に応じて開度が
制御される弁であり、通電量を増大させると燃焼器２へ
のガス供給量が増加する。又、電磁弁２５、２６に、電
磁弁駆動回路２５１を介して通電が行われると開弁状態
になってガスバーナ２３へガス供給を行う。The gas proportional valve 27 is a valve whose opening is controlled in accordance with the amount of energization. When the amount of energization increases, the amount of gas supplied to the combustor 2 increases. When the solenoid valves 25 and 26 are energized via the solenoid valve drive circuit 251, the valve is opened and gas is supplied to the gas burner 23.
【００３６】又、ガス比例弁２７には、比例弁駆動回路
２７１を介して、点火時に点火レベルの比例弁電流が流
され、温調時に燃焼ファン８の温調回転数に対応した温
調レベルの比例弁電流が流される。尚、２９は燃焼炎に
臨むフレームロッドであり、炎電流を検知する。Further, a proportional valve current of the ignition level is supplied to the gas proportional valve 27 via the proportional valve drive circuit 271 at the time of ignition, and the temperature control level corresponding to the temperature control rotation speed of the combustion fan 8 at the time of temperature control. Is flowed. A flame rod 29 faces the combustion flame and detects a flame current.
【００３７】対流ファン３は、吸込口１１付近の温風通
路１３内に枢着された羽根車３１と、羽根車３１を駆動
する対流ファンモータ３２（交流モータ）とで構成さ
れ、吸込口１１から吹出口１２へ向かう空気流１５を発
生させる。温調時に、この対流ファン３には、対流ファ
ン駆動回路３３を介して必要燃焼量に比例した風量が得
られるレベルの電流が流される。The convection fan 3 comprises an impeller 31 pivotally mounted in the hot air passage 13 near the suction port 11 and a convection fan motor 32 (AC motor) for driving the impeller 31. , An air flow 15 directed toward the outlet 12 is generated. At the time of temperature control, a current is supplied to the convection fan 3 via the convection fan drive circuit 33 at a level at which an air flow proportional to a required combustion amount is obtained.
【００３８】制御ユニット９は、図２に示す様に、ガス
比例弁２７を駆動する比例弁駆動回路２７１と、電磁弁
２５、２６の閉開弁を行う電磁弁駆動回路２５１と、対
流ファンモータ３２を駆動する対流ファン駆動回路３３
と、燃焼ファンモータ８２をフィードバック制御する燃
焼ファン駆動回路８２１と、スパーカ２８を駆動するス
パーカ駆動回路２８１と、第一燃焼制御手段６及び第二
燃焼制御手段７を有し、運転スイッチＳＷ、室温センサ
４、室温設定器５、及びフレームロッド２９等が送出す
る各電気信号に基づいて、上記各駆動回路を制御するマ
イクロコンピュータ５０とを有する。As shown in FIG. 2, the control unit 9 includes a proportional valve driving circuit 271 for driving the gas proportional valve 27, an electromagnetic valve driving circuit 251 for closing and opening the solenoid valves 25 and 26, and a convection fan motor. Convection fan drive circuit 33 for driving
A combustion fan drive circuit 821 for feedback controlling the combustion fan motor 82; a sparker drive circuit 281 for driving the sparker 28; a first combustion control means 6 and a second combustion control means 7; It has a microcomputer 50 for controlling each of the above driving circuits based on each electric signal transmitted by the sensor 4, the room temperature setting device 5, the frame rod 29 and the like.
【００３９】第一燃焼制御手段６は、温調時には、（室
温設定器５で設定した設定室温Ｔｓ）−（室温センサ４
が検出する検出室温Ｔ）とに基づいて必要燃焼量を算出
し、該必要燃焼量に見合った燃焼用空気が得られる温調
回転数（１３００ｒｐｍ〜３６００ｒｐｍ）で回転する
様に、燃焼ファン駆動回路８２１を介して燃焼ファン８
をフィードバック制御する。During the temperature control, the first combustion control means 6 sets (the set room temperature Ts set by the room temperature setting device 5)-(the room temperature sensor 4).
The combustion fan drive circuit calculates a required combustion amount based on the detected room temperature T detected by the controller and rotates at a temperature control rotation speed (1300 to 3600 rpm) at which combustion air corresponding to the required combustion amount is obtained. Combustion fan 8 via 821
Feedback control.
【００４０】又、第一燃焼制御手段６は、温調時におい
て、燃焼ファン８の回転数を検出し、この検出回転数に
基づいて必要燃焼量を逆算して求め、必要燃焼量が得ら
れる開度となる様に比例弁駆動回路２７１を介してガス
比例弁２７を通電制御する。Further, the first combustion control means 6 detects the number of revolutions of the combustion fan 8 at the time of temperature adjustment, and calculates the required amount of combustion by back calculation based on the detected number of revolutions, thereby obtaining the required amount of combustion. The energization of the gas proportional valve 27 is controlled via the proportional valve drive circuit 271 so that the opening degree is obtained.
【００４１】本実施例では、第二燃焼制御手段７の基準
温度決定部７１は、室温設定器５で設定した設定室温Ｔ
ｓに基づき、第一基準温度Ｔ1 を設定室温Ｔｓ＋０．３
３℃、第二基準温度Ｔ2 を設定室温ＴS に夫々、決定す
る。尚、第二燃焼制御手段７の基準温度変更部７２は、
後述するポストパージが終了すると、第二基準温度Ｔ 2
を設定室温Ｔｓから設定室温Ｔｓ＋０．３３℃に変更す
る。In this embodiment, the reference of the second combustion control means 7
The temperature determining unit 71 determines the set room temperature T set by the room temperature setting device 5.
s, the first reference temperature T1Set room temperature Ts + 0.3
3 ° C, second reference temperature TTwoSet room temperature TSEach decide
You. Note that the reference temperature changing unit 72 of the second combustion control means 7
When the post-purge described later is completed, the second reference temperature T Two
From the set room temperature Ts to the set room temperature Ts + 0.33 ° C
You.
【００４２】又、第二燃焼制御手段７は、温調時におい
て、検出室温Ｔが設定室温Ｔｓ＋０．３３℃を越える場
合には燃焼器２の燃焼を一旦停止さる指示を出すととも
に、１５０秒間、対流ファン３を継続作動させるポスト
パージを行う指示を出す。そして、この燃焼停止中に検
出室温Ｔが設定室温Ｔｓ以下に低下すると、第二燃焼制
御手段７は、燃焼器２の燃焼が再開する様に指示する。When the detected room temperature T exceeds the set room temperature Ts + 0.33 ° C. at the time of temperature control, the second combustion control means 7 gives an instruction to stop the combustion of the combustor 2 once, and for 150 seconds. An instruction to perform post-purge for continuously operating the convection fan 3 is issued. Then, when the detected room temperature T falls below the set room temperature Ts during this combustion stop, the second combustion control means 7 instructs the combustion of the combustor 2 to restart.
【００４３】つぎに、ＦＦ式ガス温風暖房機Ａの作動
を、図３に示すフローチャート、及び図４に示すグラフ
に基づいて述べる。制御ユニット９の第二燃焼制御手段
７の基準温度決定部７１が、室温設定器５で設定した設
定室温Ｔｓに基づいて、第一基準温度Ｔ1 を設定室温Ｔ
ｓ＋０．３３℃、第二基準温度Ｔ2 を設定室温ＴS に夫
々、決定する。Next, the operation of the FF type gas hot air heater A will be described based on the flowchart shown in FIG. 3 and the graph shown in FIG. The reference temperature determination unit 71 of the second combustion control means 7 of the control unit 9 sets the first reference temperature T 1 based on the set room temperature Ts set by the room temperature setter 5.
s + 0.33 ° C. and the second reference temperature T 2 are determined as the set room temperature T S , respectively.
【００４４】運転スイッチＳＷを投入（ステップｓ１）
すると、制御ユニット９は、燃焼ファン８を作動状態
（ステップｓ２）にする。プリパージが終了する（ステ
ップｓ３でＹＥＳ）と、制御ユニット９は、イグナイタ
を作動状態（ステップｓ４）にする。The operation switch SW is turned on (step s1).
Then, the control unit 9 puts the combustion fan 8 into an operating state (step s2). When the prepurge is completed (YES in step s3), the control unit 9 sets the igniter to the operating state (step s4).
【００４５】ステップｓ５において、制御ユニット９
は、電磁弁２５、２６を開弁状態、ガス比例弁２７を作
動状態にし、ステップｓ６に進む。ステップｓ６で、着
火を検知する（ＹＥＳ）と、ステップｓ７に進む。ステ
ップｓ７で、制御ユニット９は対流ファン３を作動状態
にし、ステップｓ８に進む。In step s5, the control unit 9
Sets the solenoid valves 25 and 26 to the open state and the gas proportional valve 27 to the operating state, and proceeds to step s6. If ignition is detected in step s6 (YES), the process proceeds to step s7. In step s7, the control unit 9 activates the convection fan 3 and proceeds to step s8.
【００４６】ステップｓ８で、制御ユニット９はイグナ
イタの作動を停止し、ステップｓ９に進む。ステップｓ
９で、制御ユニット９の第一燃焼制御手段６が、必要燃
焼量が得られる様に、燃焼ファン８及びガス比例弁２７
の、回転数及び開度を制御する比例制御を実施し、ステ
ップｓ１０に進む。At step s8, the control unit 9 stops the operation of the igniter, and proceeds to step s9. Steps
9, the first combustion control means 6 of the control unit 9 controls the combustion fan 8 and the gas proportional valve 27 so that the required amount of combustion is obtained.
Is performed, and the process proceeds to step s10.
【００４７】ステップｓ１０で、検出室温Ｔが設定室温
Ｔｓ＋０．３３℃以上になっている場合｛検出室温Ｔが
第一基準温度Ｔ1 以上になっている場合｝（ＹＥＳ）に
は、ステップｓ１１に進む｛経過時点９０１、９０２、
９０３、９０４｝。又、検出室温Ｔが設定室温Ｔｓ＋
０．３３℃未満（ＮＯ）の場合にはステップｓ９に戻っ
て比例制御を継続する。[0047] In step s10, the {if the detected room temperature T becomes the first reference temperature above T 1} If the detected room temperature T is in the set room temperature Ts + 0.33 ° C. or higher (YES), the step s11 Advance ｛Elapsed time 901, 902,
903, 904}. The detection room temperature T is equal to the set room temperature Ts +
If the temperature is less than 0.33 ° C. (NO), the process returns to step s9 to continue the proportional control.
【００４８】ステップｓ１１で、制御ユニット９の第二
燃焼制御手段７は、燃焼器２の燃焼を一旦停止させる為
の指示を出しステップｓ１２に進む。これにより、電磁
弁２５、２６が閉弁状態、ガス比例弁２７が作動停止状
態、燃焼ファン８が停止状態になる。尚、ポストパージ
（１５０秒間）が終了するまで、対流ファン３の作動は
継続される。At step s11, the second combustion control means 7 of the control unit 9 issues an instruction to temporarily stop the combustion of the combustor 2, and proceeds to step s12. As a result, the solenoid valves 25 and 26 are closed, the gas proportional valve 27 is stopped, and the combustion fan 8 is stopped. The operation of the convection fan 3 is continued until the end of the post purge (for 150 seconds).
【００４９】燃焼停止から１５０秒が経過しているか否
かステップｓ１２で判別し、経過していない場合（Ｎ
Ｏ）はステップｓ１３に進む。又、経過している場合
（ＹＥＳ）はステップｓ１４に進む｛経過時点９０６、
９０７｝。この場合、第二燃焼制御手段７の基準温度変
更部７２は、第二基準温度Ｔ2 を、設定室温Ｔｓから設
定室温Ｔｓ＋０．３３℃｛＝第一基準温度Ｔ1 ｝に変更
する。It is determined in step s12 whether 150 seconds have elapsed since the combustion was stopped.
O) proceeds to step s13. If the time has elapsed (YES), the process proceeds to step s14.
907｝. In this case, the reference temperature change unit 72 of the second combustion control means 7, the second reference temperature T 2, to change the setting room temperature Ts + 0.33 ° C. from the setting room temperature Ts {= first reference temperature T 1}.
【００５０】ステップｓ１３で、制御ユニット９の第二
燃焼制御手段７は、ポストパージ中に検出室温Ｔが設定
室温Ｔｓ以下｛＝第二基準温度Ｔ2 以下｝に低下してい
るか否か判別し、低下していない場合（ＮＯ）はステッ
プｓ１２に戻り、低下している場合（ＹＥＳ；経過時点
９０５）は、燃焼器２の燃焼を再開させる為、ステップ
ｓ２に戻る。[0050] In step s13, the second combustion control means 7 of the control unit 9, detects room temperature T is set at room temperature Ts or less during post-purge {= a second reference temperature T 2 less} discriminates whether or not has decreased to If it has not decreased (NO), the process returns to step s12, and if it has decreased (YES; elapsed time 905), the process returns to step s2 to restart the combustion of the combustor 2.
【００５１】ポストパージが終了したので｛経過時点９
０６、９０７｝、ステップｓ１４で、制御ユニット９は
対流ファン３の作動停止を指示し、ステップｓ１５に進
む。ステップｓ１５で、制御ユニット９の第二燃焼制御
手段７は、検出室温Ｔが設定室温Ｔｓ＋０．３３℃以下
｛＝第一基準温度Ｔ1 以下｝に低下しているか否か判別
し、低下している場合（ＹＥＳ；経過時点９０６）は燃
焼器２の燃焼を再開させる為、ステップｓ２に戻る。
又、低下していない場合（ＮＯ；経過時点９０７）は対
流ファン３を作動停止した状態での待機を指示する。Since the post-purge has been completed, {circle over (9)}
06, 907 °, in step s14, the control unit 9 instructs the stop of the operation of the convection fan 3, and proceeds to step s15. In step s15, the second combustion control means 7 of the control unit 9, detects room temperature T is set at room temperature Ts + 0.33 ° C. or less determined whether decreased to {= first reference temperature T 1 of less}, decreases If there is (YES; elapsed time point 906), the flow returns to step s2 to restart the combustion of the combustor 2.
If it has not decreased (NO; elapsed time point 907), an instruction is given to stand by while the convection fan 3 is stopped.
【００５２】つぎに、本実施例のＦＦ式ガス温風暖房機
Ａの利点を述べる。１５０秒のポストパージが終了して
対流ファン３が停止すると、室内空気１０が室温センサ
４に流れなくなるので、室温センサ４が検出する検出室
温Ｔ｛図４の実線に示す｝は、実際の室温｛図４の二点
鎖線｝より高めに検出される様になる。Next, advantages of the FF type gas hot air heater A of this embodiment will be described. When the convection fan 3 is stopped after the end of the 150-second post-purge, the room air 10 stops flowing to the room temperature sensor 4, so the detected room temperature T detected by the room temperature sensor 4 {shown by a solid line in FIG. It will be detected higher than {two-dot chain line in FIG. 4}.
【００５３】しかし、ポストパージの終了時点で、基準
温度変更部７２が第二基準温度Ｔ2｛＝設定室温Ｔｓ｝
を、ポストパージ中の第二基準温度Ｔ2 ｛＝設定室温Ｔ
ｓ｝より高い第一基準温度Ｔ1 ｛＝設定室温Ｔｓ＋０．
３３℃｝に変更する構成であるので、実際の室温が、燃
焼を再開すべき温度に低下した時点（経過時点９０８）
で燃焼器２の燃焼を再開する事ができる。この為、室温
制御が適格に行われるので、使用者に寒さを感じさせな
い。又、冷風を吹き出さないので、使用者に不快感を与
えない。However, at the end of the post-purge, the reference temperature changing section 72 sets the second reference temperature T 2 ｛= set room temperature Ts｝.
, The second reference temperature T 2 ｛during the post-purge = set room temperature T
s｝ first reference temperature T 1 = set room temperature Ts + 0.
Since the temperature is changed to 33 ° C., the time when the actual room temperature drops to the temperature at which combustion should be restarted (elapsed time 908)
Thus, the combustion of the combustor 2 can be restarted. For this reason, since room temperature control is performed appropriately, the user does not feel cold. Further, since no cool air is blown out, the user does not feel uncomfortable.
【００５４】本発明は、上記実施例以外に、つぎの実施
態様を含む。 ａ．対流ファン３を所定時間の間、継続作動させるポス
トパージを行う構成の代わりに、機内温度が所定温度以
下に低下するまでの間、ポストパージを行う構成であっ
ても良い（請求項２に対応）。The present invention includes the following embodiments in addition to the above embodiments. a. Instead of performing post-purging in which the convection fan 3 is continuously operated for a predetermined time, a configuration in which post-purging is performed until the in-machine temperature falls below a predetermined temperature may be employed. ).
【００５５】ｂ．上記実施例では、第二基準温度を変更
するものを示したが、室温センサ４で検出される温度を
低めに補正することにより、実際の室温を予測し、その
補正した温度と第二基準温度とを比較するようにしても
良い。これにより、実際の室温が燃焼を再開すべき温度
に低下した時点で燃焼を再開することができる｛請求項
４、５に対応｝。B. In the above embodiment, the case where the second reference temperature is changed has been described. However, by correcting the temperature detected by the room temperature sensor 4 to be lower, an actual room temperature is predicted, and the corrected temperature and the second reference temperature are used. May be compared. Thus, the combustion can be restarted when the actual room temperature falls to the temperature at which the combustion should be restarted {corresponding to claims 4 and 5}.
【００５６】ｃ．負荷に応じてガス流量を切り替える第
一燃焼制御手段は備えなくても良い。即ち、燃焼状態と
停止状態との切り替えを行う第二燃焼制御手段のみで温
度制御を行うようにしても良い。C. The first combustion control means for switching the gas flow according to the load may not be provided. That is, the temperature control may be performed only by the second combustion control unit that switches between the combustion state and the stop state.
【００５７】ｄ．吸込口から吸い込まれる室内空気と燃
焼空気とを混合し、それを温風として吹き出すタイプの
ファンヒータに本発明を適用しても良い。 ｅ．燃料はガス以外に灯油等であっても良く、加熱源と
しては電気ヒータ等であっても良い。尚、加熱源に、
“燃料が供給されて燃焼する燃焼器｛加熱量（燃焼量）
がゼロ近くまで絞るのが難しい｝”を採用した温風暖房
機に本発明を適用した場合に特に優れた効果を奏する。D. The present invention may be applied to a fan heater of a type in which room air and combustion air sucked from an air inlet are mixed and blown out as hot air. e. The fuel may be kerosene or the like other than gas, and the heating source may be an electric heater or the like. In addition, to the heating source,
“The combustor that is supplied with fuel and burns ｛heating amount (burning amount)
The effect is particularly excellent when the present invention is applied to a hot air heater that employs｝ ″, which is difficult to reduce to near zero.
【図１】本発明の一実施例に係るＦＦ式ガス温風暖房機
の構成図である。FIG. 1 is a configuration diagram of an FF gas hot air heater according to one embodiment of the present invention.
【図２】そのＦＦ式ガス温風暖房機のブロック図であ
る。FIG. 2 is a block diagram of the FF gas hot air heater.
【図３】そのＦＦ式ガス温風暖房機の作動を示すフロー
チャートである。FIG. 3 is a flowchart showing the operation of the FF gas hot air heater.
【図４】そのＦＦ式ガス温風暖房機において、経過時間
- 温度の関係を示すグラフである。FIG. 4 shows the elapsed time in the FF gas hot air heater.
-It is a graph which shows the relationship of a temperature.
Ａ ＦＦ式ガス温風暖房機（温風暖房機） １ ハウジング ２ 燃焼器（加熱源） ３ 対流ファン ４ 室温センサ ５ 室温設定器 ７ 第二燃焼制御手段（加熱制御手段） １０ 室内空気 １１ 吸込口 １２ 吹出口 ３０ 温風 ７１ 基準温度決定部 ７２ 基準温度変更部 Ｔ 検出室温 Ｔ1 第一基準温度 Ｔ2 第二基準温度 Ｔｓ 設定室温A FF type gas hot air heater (hot air heater) 1 Housing 2 Combustor (Heating source) 3 Convection fan 4 Room temperature sensor 5 Room temperature setting device 7 Second combustion control means (Heating control means) 10 Indoor air 11 Suction port 12 air outlet 30 hot air 71 reference temperature determining unit 72 reference temperature change unit T detected room temperature T 1 the first reference temperature T 2 the second reference temperature Ts set room temperature
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−341714（ＪＰ，Ａ) 特開 昭56−42047（ＪＰ，Ａ) 実開 平５−52541（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F24H 3/06 304 F23N 5/20 101 F24H 3/04 305 F23N 5/02 350 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-341714 (JP, A) JP-A-56-42047 (JP, A) JP-A-5-52541 (JP, U) (58) Field (Int.Cl. 6 , DB name) F24H 3/06 304 F23N 5/20 101 F24H 3/04 305 F23N 5/02 350
Claims (5)
と、 該ハウジング内に配される加熱源と、 前記吸込口から室内空気を吸い込み、前記加熱源により
昇温した室内空気を温風として前記吹出口から吹き出さ
せる対流ファンと、 前記吸込口の近傍に配される、室温を検出する室温セン
サと、 室温を設定する室温設定器と、 前記設定室温に基づいて、第一、第二基準温度を決定す
る基準温度決定部を有し、前記検出室温が前記第一基準
温度を越える場合には前記加熱源の作動を一旦停止させ
るとともに、所定時間の間、前記対流ファンを継続作動
させるポストパージを行い、この加熱停止中に前記検出
室温が前記第一基準温度より低い第二基準温度以下に低
下すると、前記加熱源の作動を再開する加熱制御手段と
を具備する温風暖房機において、 前記加熱制御手段は、前記ポストパージが終了すると、
前記第二基準温度を、ポストパージ中の第二基準温度よ
り高い温度に変更する基準温度変更部を有する事を特徴
とする温風暖房機。1. A housing having an inlet and an outlet, a heating source arranged in the housing, and indoor air sucked from the inlet, and the indoor air heated by the heating source is blown as warm air. A convection fan that blows out from an outlet, a room temperature sensor that is disposed near the suction port and detects room temperature, a room temperature setter that sets room temperature, and that based on the set room temperature, determines first and second reference temperatures. When the detected room temperature exceeds the first reference temperature, the operation of the heating source is temporarily stopped, and a post purge for continuously operating the convection fan for a predetermined time is provided. When the detected room temperature falls below the second reference temperature lower than the first reference temperature during the heating stop, a heating control means for restarting the operation of the heating source is provided. , Said heating control means, when the post-purge is completed,
A hot-air heater having a reference temperature change unit that changes the second reference temperature to a temperature higher than the second reference temperature during post-purge.
と、 該ハウジング内に配される加熱源と、 前記吸込口から室内空気を吸い込み、前記加熱源により
昇温した室内空気を温風として前記吹出口から吹き出さ
せる対流ファンと、 前記吸込口の近傍に配される、室温を検出する室温セン
サと、 室温を設定する室温設定器と、 前記設定室温に基づいて、第一、第二基準温度を決定す
る基準温度決定部を有し、前記検出室温が前記第一基準
温度を越える場合には前記加熱源の作動を一旦停止させ
るとともに、機内温度が所定温度以下に低下するまでの
間、前記対流ファンを継続作動させるポストパージを行
い、この加熱停止中に前記検出室温が前記第一基準温度
より低い第二基準温度以下に低下すると、前記加熱源の
作動を再開する加熱制御手段とを具備する温風暖房機に
おいて、 前記加熱制御手段は、前記ポストパージが終了すると、
前記第二基準温度を、ポストパージ中の第二基準温度よ
り高い温度に変更する基準温度変更部を有する事を特徴
とする温風暖房機。2. A housing having an inlet and an outlet, a heating source disposed in the housing, and indoor air sucked from the inlet, and the room air heated by the heating source is blown as warm air. A convection fan that blows out from an outlet, a room temperature sensor that is disposed near the suction port and detects room temperature, a room temperature setter that sets room temperature, and that based on the set room temperature, determines first and second reference temperatures. When the detected room temperature exceeds the first reference temperature, the operation of the heating source is temporarily stopped, and the convection is continued until the temperature in the machine falls below a predetermined temperature. A heating control means for performing post-purging for continuously operating the fan and restarting the operation of the heating source when the detected room temperature falls below a second reference temperature lower than the first reference temperature during the heating stop. In warm-air heating apparatus having a, the heating control means, when the post-purge is completed,
A hot-air heater having a reference temperature change unit that changes the second reference temperature to a temperature higher than the second reference temperature during post-purge.
基準温度は、前記室温設定器で設定した設定室温より高
く、 前記基準温度決定部が決定する前記第二基準温度は、前
記室温設定器で設定した設定室温に等しく、 前記基準温度変更部が変更する第二基準温度は、前記第
一基準温度に等しい請求項１又は請求項２記載の温風暖
房機。3. The first reference temperature determined by the reference temperature determination unit is higher than a set room temperature set by the room temperature setting device, and the second reference temperature determined by the reference temperature determination unit is set by the room temperature setting. 3. The hot air heater according to claim 1, wherein the second reference temperature changed by the reference temperature changing unit is equal to the set room temperature set by the heater, and the second reference temperature is equal to the first reference temperature. 4.
と、 該ハウジング内に配される加熱源と、 前記吸込口から室内空気を吸い込み、前記加熱源により
昇温した室内空気を温風として前記吹出口から吹き出さ
せる対流ファンと、 前記吸込口の近傍に配される、室温を検出する室温セン
サと、 室温を設定する室温設定器と、 前記設定室温に基づいて、第一、第二基準温度を決定す
る基準温度決定部を有し、前記検出室温が前記第一基準
温度を越える場合には前記加熱源の作動を一旦停止させ
るとともに、所定時間の間、前記対流ファンを継続作動
させるポストパージを行い、この加熱停止中に前記検出
室温が前記第一基準温度より低い第二基準温度以下に低
下すると、前記加熱源の作動を再開する加熱制御手段と
を具備する温風暖房機において、 前記加熱制御手段は、前記ポストパージが終了すると、
前記室温センサで検出される温度より低い温度に前記検
出室温を補正して前記第二基準温度と比較する事を特徴
とする温風暖房機。4. A housing having an inlet and an outlet, a heating source disposed in the housing, and indoor air sucked from the inlet, and the indoor air heated by the heating source is blown as warm air. A convection fan that blows out from an outlet, a room temperature sensor that is disposed near the suction port and detects room temperature, a room temperature setter that sets room temperature, and that based on the set room temperature, determines first and second reference temperatures. When the detected room temperature exceeds the first reference temperature, the operation of the heating source is temporarily stopped, and a post purge for continuously operating the convection fan for a predetermined time is provided. When the detected room temperature falls below the second reference temperature lower than the first reference temperature during the heating stop, a heating control means for restarting the operation of the heating source is provided. , Said heating control means, when the post-purge is completed,
A hot-air heater, wherein the detected room temperature is corrected to a temperature lower than the temperature detected by the room temperature sensor, and the corrected room temperature is compared with the second reference temperature.
と、 該ハウジング内に配される加熱源と、 前記吸込口から室内空気を吸い込み、前記加熱源により
昇温した室内空気を温風として前記吹出口から吹き出さ
せる対流ファンと、 前記吸込口の近傍に配される、室温を検出する室温セン
サと、 室温を設定する室温設定器と、 前記設定室温に基づいて、第一、第二基準温度を決定す
る基準温度決定部を有し、前記検出室温が前記第一基準
温度を越える場合には前記加熱源の作動を一旦停止させ
るとともに、機内温度が所定温度以下に低下するまでの
間、前記対流ファンを継続作動させるポストパージを行
い、この加熱停止中に前記検出室温が前記第一基準温度
より低い第二基準温度以下に低下すると、前記加熱源の
作動を再開する加熱制御手段とを具備する温風暖房機に
おいて、 前記加熱制御手段は、前記ポストパージが終了すると、
前記室温センサで検出される温度より低い温度に前記検
出室温を補正して前記第二基準温度と比較する事を特徴
とする温風暖房機。5. A housing having an inlet and an outlet, a heating source disposed in the housing, and indoor air sucked from the inlet, and the indoor air heated by the heating source is blown as warm air. A convection fan that blows out from an outlet, a room temperature sensor that is disposed near the suction port and detects room temperature, a room temperature setter that sets room temperature, and that based on the set room temperature, determines first and second reference temperatures. When the detected room temperature exceeds the first reference temperature, the operation of the heating source is temporarily stopped, and the convection is continued until the temperature in the machine falls below a predetermined temperature. A heating control means for performing post-purging for continuously operating the fan and restarting the operation of the heating source when the detected room temperature falls below a second reference temperature lower than the first reference temperature during the heating stop. In warm-air heating apparatus having a, the heating control means, when the post-purge is completed,
A hot-air heater, wherein the detected room temperature is corrected to a temperature lower than the temperature detected by the room temperature sensor, and the corrected room temperature is compared with the second reference temperature.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7004457A JP2924998B2 (en) | 1995-01-13 | 1995-01-13 | Hot air heater |
| KR1019960000359A KR0173829B1 (en) | 1995-01-13 | 1996-01-10 | Warm wind air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7004457A JP2924998B2 (en) | 1995-01-13 | 1995-01-13 | Hot air heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08193752A JPH08193752A (en) | 1996-07-30 |
| JP2924998B2 true JP2924998B2 (en) | 1999-07-26 |
Family
ID=11584686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7004457A Expired - Fee Related JP2924998B2 (en) | 1995-01-13 | 1995-01-13 | Hot air heater |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2924998B2 (en) |
| KR (1) | KR0173829B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765163A (en) * | 2017-01-13 | 2017-05-31 | 安徽未名鼎和环保有限公司 | A kind of incinerator air inlet and automatic feeding control system based on temperature detection |
| CN106813248A (en) * | 2017-01-13 | 2017-06-09 | 安徽未名鼎和环保有限公司 | A kind of incinerator gas circulation control system based on temperature detection |
| CN106838927A (en) * | 2017-01-13 | 2017-06-13 | 安徽未名鼎和环保有限公司 | A kind of incinerator circulation air inlet and blanking control system based on temperature detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4581006B2 (en) * | 2008-06-18 | 2010-11-17 | リンナイ株式会社 | Hot air heater |
| JP4581005B2 (en) * | 2008-06-18 | 2010-11-17 | リンナイ株式会社 | Hot air heater |
| JP5319594B2 (en) * | 2010-04-09 | 2013-10-16 | リンナイ株式会社 | Hot air heater |
| JP5851454B2 (en) * | 2013-07-03 | 2016-02-03 | リンナイ株式会社 | Hot water heating system |
| JP6545554B2 (en) * | 2015-07-17 | 2019-07-17 | リンナイ株式会社 | Combustion device |
| CN107062267A (en) * | 2017-01-13 | 2017-08-18 | 安徽未名鼎和环保有限公司 | A kind of intelligent incineration treatment of garbage air intake control system |
| CN108954481B (en) * | 2018-04-20 | 2020-11-10 | 深圳和而泰智能控制股份有限公司 | Method and device for accelerating starting of heating device |
| CN112361614B (en) * | 2020-11-20 | 2021-12-03 | 珠海格力电器股份有限公司 | Control method and device for outlet water temperature of water heater, water heater and storage medium |
-
1995
- 1995-01-13 JP JP7004457A patent/JP2924998B2/en not_active Expired - Fee Related
-
1996
- 1996-01-10 KR KR1019960000359A patent/KR0173829B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765163A (en) * | 2017-01-13 | 2017-05-31 | 安徽未名鼎和环保有限公司 | A kind of incinerator air inlet and automatic feeding control system based on temperature detection |
| CN106813248A (en) * | 2017-01-13 | 2017-06-09 | 安徽未名鼎和环保有限公司 | A kind of incinerator gas circulation control system based on temperature detection |
| CN106838927A (en) * | 2017-01-13 | 2017-06-13 | 安徽未名鼎和环保有限公司 | A kind of incinerator circulation air inlet and blanking control system based on temperature detection |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960029733A (en) | 1996-08-17 |
| JPH08193752A (en) | 1996-07-30 |
| KR0173829B1 (en) | 1999-03-20 |
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