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51. 发明专利

JPS4825594A 失效
公开(公告)号：JPS4825594A
公开(公告)日：1973-04-03
申请号：JP7655072
申请日：1972-08-01
IPC分类号： G01N33/18 , F01K21/06 , F22D11/00 , F28D7/00 , F28D7/02 , F28F27/00 , G01N1/00 , G01N25/40
摘要： A modular water quality analysis system for steam electric power generating plants is disclosed which includes a novel single shell multicircuit heat exchanger having means to individually vary the rate of flow of cooling water through each of the multiple circuits therein so that the single heat exchanger can simultaneously cool a plurality of samples entering it at widely differing high inlet temperatures to the same lower range of outlet temperatures. The heat exchanger has a physical construction such that it can be mounted on top of the system rack which contains a plurality of modules of apparatus for accepting water or steam samples from various test points in the power generating system, reducing the pressure and temperature thereof, directing and metering the flow of samples, and performing analyses for such water characteristic as pH, specific or cation conductivity, dissolved oxygen, sodium content and the like. The fact that the single shell heat exchanger can be mounted on top of the system rack and thereby replace a plurality of individually manifolded and valved heat exchangers formerly mounted at the back of the rack makes possible a considerable saving in cost, space and weight, a greater flexibility in system layout design, together with greatly improved access to the system components for adjustment and maintenance purposes, and faster instrument response due to shorter sample tubing runs. This flexibility of design in the modular system also permits the same basic apparatus to be adapted to a large variety of different sizes and types of power generating plants having different analysis requirements thereby providing a custom installation for each plant which nonetheless retains all of the advantages of standardized design and equipment.

52. 发明专利

CA2177907A1 METHOD AND APPARATUS FOR GAS FLOW MODULATED DIFFERENTIAL SCANNING CALORIMETRY 未知
公开(公告)号：CA2177907A1
公开(公告)日：1996-12-03
申请号：CA2177907
申请日：1996-05-31
申请人： TA INSTR INC
发明人： READING MICHAEL
IPC分类号： G01K17/00 , G01N25/20 , G01N25/48 , G01N25/40
摘要： A modulated differential scanning calorimeter ("MDSC") wherein the temperature of the sample and/or the reference is modulated by modulating the characteristics of a gas in thermal contact with the sample and or a reference. In a first embodiment, the major heat flow path between the sample/reference and the furnace is the purge gas in the furnace chamber. The composition of the purge gas in the furnace chamber of the DSC cell is modulated by alternately purging the DSC cell with a high thermal conductivity gas (e.g., helium) and with a low thermal conductivity gas (e.g., nitrogen), thus modulating the flow of heat to and from the cell. In a second embodiment, the sample and reference are heated (or cooled) by a temperature-controlling gas flowing around the sample and reference holders. The gas is heated by being passed through a furnace before it flows around the sample and the reference. The flow-rate of the temperaturecontrolling gas is modulated, thus modulating the temperature of the sample and the reference. The third embodiment is similar to the second embodiment, but in the third embodiment, the temperature (not the flow-rate) of the temperaturecontrolling gas is modulated. The third embodiment preferably uses modulation furnaces which have a relatively low thermal mass, such that the sample/reference temperature can be modulated at relatively high modulation rates.

53. 发明专利

FR2690249A1 Heat output measurement appts. for sample in combustion - comprises sample chamber with radiant ignition system and combustion products collection system 未知
公开(公告)号：FR2690249A1
公开(公告)日：1993-10-22
申请号：FR9204747
申请日：1992-04-17
申请人： ELECTRICITE DE FRANCE
发明人： MICHEL RACINE , JACQUES ROUSSEL
IPC分类号： G01N25/40 , G01N25/50 , G01N25/20 , G01J17/00
摘要： The appts. includes a cylindrical enclosure (12 ) containing a sample holder (17) with means for weighing the sample and for supplying and measuring the flow of combustion gases. The enclosure forms a chimney above the sample allowing the products of combustion to be collected and analysed for CO and CO2 content. The enclosure forms an insulated tube (12,14,16) which can be removed when necessary, with a window (26) allowing the entry of radiant energy to ignite the sample. USE/ADVANTAGE - Calorimetry of combustible samples. Allows direct measurement of radiant energy emitted.

54. 发明专利

DD155210A1 未知
公开(公告)号：DD155210A1
公开(公告)日：1982-05-19
申请号：DD22601480
申请日：1980-12-12
申请人： REICHEL HELMUT , HANISCH HELMUT , WOLF HELMUT
发明人： REICHEL HELMUT , HANISCH HELMUT , WOLF HELMUT
IPC分类号： G01N25/40

55. 发明专利

CH556028A DISPOSITIF D'ANALYSE QUALITATIVE DE L'EAU DANS UNE CENTRALE THERMOELECTRIQUE COMPORTANT UN ECHANGEUR DE CHALEUR MULTICIRCUIT A ENCEINTE UNIQUE. 未知
公开(公告)号：CH556028A
公开(公告)日：1974-11-15
申请号：CH572672
申请日：1972-04-18
申请人： BECKMAN INSTRUMENTS INC
IPC分类号： G01N33/18 , F01K21/06 , F22D11/00 , F28D7/00 , F28D7/02 , F28F27/00 , G01N1/00 , G01N25/40

56. 发明专利

FR2149797A5 未知
公开(公告)号：FR2149797A5
公开(公告)日：1973-03-30
申请号：FR7227383
申请日：1972-07-28
申请人： BECKMAN INSTRUMENTS INC
IPC分类号： G01N33/18 , F01K21/06 , F22D11/00 , F28D7/00 , F28D7/02 , F28F27/00 , G01N1/00 , G01N25/40 , G01N33/00 , G05D7/00
摘要： A modular water quality analysis system for steam electric power generating plants is disclosed which includes a novel single shell multicircuit heat exchanger having means to individually vary the rate of flow of cooling water through each of the multiple circuits therein so that the single heat exchanger can simultaneously cool a plurality of samples entering it at widely differing high inlet temperatures to the same lower range of outlet temperatures. The heat exchanger has a physical construction such that it can be mounted on top of the system rack which contains a plurality of modules of apparatus for accepting water or steam samples from various test points in the power generating system, reducing the pressure and temperature thereof, directing and metering the flow of samples, and performing analyses for such water characteristic as pH, specific or cation conductivity, dissolved oxygen, sodium content and the like. The fact that the single shell heat exchanger can be mounted on top of the system rack and thereby replace a plurality of individually manifolded and valved heat exchangers formerly mounted at the back of the rack makes possible a considerable saving in cost, space and weight, a greater flexibility in system layout design, together with greatly improved access to the system components for adjustment and maintenance purposes, and faster instrument response due to shorter sample tubing runs. This flexibility of design in the modular system also permits the same basic apparatus to be adapted to a large variety of different sizes and types of power generating plants having different analysis requirements thereby providing a custom installation for each plant which nonetheless retains all of the advantages of standardized design and equipment.

57. 发明专利

GB1165634A Improvements in Gas Calorimetry. 未知
公开(公告)号：GB1165634A
公开(公告)日：1969-10-01
申请号：GB3002567
申请日：1967-06-29
申请人： GAS COUNCIL
发明人： MACCORMAC MICHAEL , PULLEY ALBERT GEORGE
IPC分类号： G01N25/40
摘要： 1,165,634. Gas calorimetry. GAS COUNCIL. June 19, 1968 [June 29, 1967], No.30025/67. Heading G1D. A method of measuring the calorific value of a fuel gas comprises supplying to a continuous flow calorimeter Fig. 4 metered amounts of a calorimeter heat exchange liquid e.g. mercury and of the fuel gas under predetermined conditions from a proportioning device Fig. 2 having a rotary member 27 with metering chambers 33 which are altenately filled with equal volumes of the heat-exchange liquid and the fuel gas, the liquid displacing the gas from each chamber and the subsequent outflow of liquid allowing more gas to flow in, so that the volume ratio of liquid to gas at the predetermined conditions is constant, the fuel gas being burnt at a burner 69 with air saturated with water vapour, the burnt gases passing along a flue 64 and into a heat exchanger 62, through which the heat exchange liquid flows, and measuring the temperature difference between the liquid leaving the heat exchanger 62, this temperature difference being a direct measure of the calorific value of the fuel gas. The whole apparatus is contained in a water bath at 0‹ C. The proportioning device comprises a body formed with three chambers 24, 25, 26, the middle one of which 26 contains the rotary member 27 driven by a motor (not shown). Mercury from the calorimeter is cooled by passage through a coil in the water bath and is fed to the upper chamber 24 through a pipe 16 a weir (not shown) maintaining the mercury level constant. The pipe 16 leads into a duct 17 communicating with the chamber 24, the incoming fuel gas being used to drive the mercury along the coil to the duct 17 where the separation occurs the gas passing to the lower chamber 25 through a pipe 18. The chamber 25 contains a float 43 with a ball valve 39, 40 to maintain the gas pressure in this chamber constant. The gas-from the chamber 25 is fed via a duct 50 to a chamber 53 where it enters and fills successive of the metering chambers 33 via a duct 54 as the member 27 rotates. The mercury leaving the chamber 33 is passed to the inlet of the calorimeter heat exchanger. The gas trapped in the chambers 33 leaves via a pipe 59 as the chambers register with a duct 55 leading to the chamber 24, and so fill with mercury. The head exchanger 62 is supported on insulating legs 61 in a Dewar flask 60, the burner 69 being fed with air through a pipe 65. The burner flue 64 loads to the heat exchanger 62, the gases leaving via an exhaust pipe 81, the incoming mercury from the proportioning device being supplied to a jacket 72 round the flue 64 after its passage through the heat exchanger 62 from an inlet pipe 57. Platinum resistance thermometers may be used to measure the temperature difference between the ingoing and outcoming mercury from the calorimeter. In the above described arrangement the gas pressure, and temperature are maintained constant and this gives the calorific value of the gas in relation to its volume. If desired calorific value per unit mass of gas can be measured if the float in the chamber 25 is replaced by a density balance arrangement to maintain the density of the gas metered by the proportioning device constant. If desired dibutyl phthalate may be used in place of mercury as the heat exchange liquid.

58. 发明专利

NL6808986A 未知
公开(公告)号：NL6808986A
公开(公告)日：1968-12-30
申请号：NL6808986
申请日：1968-06-26
IPC分类号： G01N25/40 , G01K

59. 发明专利

DE818127C 未知
公开(公告)号：DE818127C
公开(公告)日：1951-10-22
申请号：DEP0024815
申请日：1948-12-14
申请人： COMMENTRY FOURCHAMBAULT ET DEC
发明人： SCHULLER PIERRE
IPC分类号： G01N25/40

60. 发明专利

GB222839A Improved method and apparatus for determining the calorific value of gases 未知
公开(公告)号：GB222839A
公开(公告)日：1925-05-28
申请号：GB1989624
申请日：1924-08-22
申请人： JOHANNES IDARUS DORGELO
IPC分类号： G01N25/40
摘要： 222,839. Dorgelo, J. I. Oct. 1, 1923, [Convention date]. Fluid-actuated valves.-A gas calorimeter is automatically operated in a succession of steps in each of which a constant volume of gas is burned. The gas enters by a pipe E and down a pipe F into a container B, excess gas being burned at the open upper end of the pipe F. Below the container B and communicating therewith is a tube Q the reduced lower end of which passes into a vessel A. Water is introduced into the vessel A from a pipe D down a tube J which surrounds a tube H open to the atmosphere at its upper end. When the water rises in the vessel A to the level of the lower end of the tube H the air in the vessel is trapped and its pressure rises as the water continues to enter, thus causing the water to rise in the tube Q until the lower end of the pipe F is covered. Gas is thereafter expelled from the container B through a pipe K to a burner M where it is ignited by a by-pass burner N. The water rises in the tube H until it siphons over down the tube C and enters a vessel U from which it passes into the calorimeter, displacing the heated water therein. At the same time the liquid seals are broken, and a fresh charge of gas enters the container B. To prevent entry of air to the container during the siphoning operation the tube K has a U-shaped part L within the vessel U, this part L having an open lower end so that as the water rises in the vessel U it forms a seal within the tube L.

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