JPS57144896A - Waste heat recovery device - Google Patents

Waste heat recovery device

Info

Publication number
JPS57144896A
JPS57144896A JP3073881A JP3073881A JPS57144896A JP S57144896 A JPS57144896 A JP S57144896A JP 3073881 A JP3073881 A JP 3073881A JP 3073881 A JP3073881 A JP 3073881A JP S57144896 A JPS57144896 A JP S57144896A
Authority
JP
Japan
Prior art keywords
temperature
duct
heat exchanger
waste heat
concentration
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
Application number
JP3073881A
Other languages
Japanese (ja)
Inventor
Hiroshi Hashimoto
Kazumasa Okada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP3073881A priority Critical patent/JPS57144896A/en
Publication of JPS57144896A publication Critical patent/JPS57144896A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To pevent the corrosion of a waste heat recovery heat exchanger by sulfuric acid liquid by controlling the flow rate of brine to the heat exchanger in such a way that temperature detected by a temperature detector provided inside a waste heat duct becomes higher than the dew point temperature corresponding to the concentration of sulfuric acid vapor in the gas inside the waste heat duct. CONSTITUTION:A SO3 concentration detector 10 is provided in a duct 1a on the upwind side of a waste heat recovery heat exchanger 3, and also a temperature detector 11 is provided in the duct 1b on the downwind side. A SO3 concentration signal a and a temperature signal b are put in an arithmetical controller 12 where calculation is made in such a way that the temperature inside the duct 1b becomes higher than the dew point temperature all the time, and a signal C to control a flow rate controller 7 is send out. By this, the flow rate of brine to the heat exchanger 3 is adjusted. For example, when the detector 10 detects a SO3 concentration of 10ppm, dewfall is likely to occur on the surface of the heat exchanger 3 when the temperature of waste gas is about 130 deg.C. Thus, the circulation amount of brine is reduced by throttling the valve 7 in such a way as to lower the temperature of waste gas to about 150 deg.C.
JP3073881A 1981-03-03 1981-03-03 Waste heat recovery device Pending JPS57144896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3073881A JPS57144896A (en) 1981-03-03 1981-03-03 Waste heat recovery device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3073881A JPS57144896A (en) 1981-03-03 1981-03-03 Waste heat recovery device

Publications (1)

Publication Number Publication Date
JPS57144896A true JPS57144896A (en) 1982-09-07

Family

ID=12312007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3073881A Pending JPS57144896A (en) 1981-03-03 1981-03-03 Waste heat recovery device

Country Status (1)

Country Link
JP (1) JPS57144896A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013091457A1 (en) * 2011-12-20 2013-06-27 上海伏波环保设备有限公司 Coal economizer with closed loop
CN104534918A (en) * 2014-12-26 2015-04-22 北京京诚凤凰工业炉工程技术有限公司 Waste heat recovery thermodynamic system
CN108861422A (en) * 2018-05-03 2018-11-23 合肥金谷粮食机械设备有限公司 A kind of care device and method of grain transporter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013091457A1 (en) * 2011-12-20 2013-06-27 上海伏波环保设备有限公司 Coal economizer with closed loop
CN104534918A (en) * 2014-12-26 2015-04-22 北京京诚凤凰工业炉工程技术有限公司 Waste heat recovery thermodynamic system
CN108861422A (en) * 2018-05-03 2018-11-23 合肥金谷粮食机械设备有限公司 A kind of care device and method of grain transporter
CN108861422B (en) * 2018-05-03 2020-05-12 合肥金谷粮食机械设备有限公司 Maintenance device and method for grain conveyor

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