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    • 41. 发明专利
    • Heat exchanger of laminate type
    • 层压型热交换器
    • JPS59170690A
    • 1984-09-26
    • JP4414283
    • 1983-03-18
    • Hitachi Ltd
    • YOSHIKAWA SEIICHIHARADA SUSUMUSAHO NORIHIDEKOUNO AKIOMITAKADA TADASHI
    • F28D9/00
    • F28D9/0075F28F2250/102
    • PURPOSE:To contrive to miniaturize a heat exchanger and to improve its performance, by unifying the distribution of flow velocity of each fluid in a heat exchanger part, in a heat exchanger of laminate type equipped with headers consisting of heat transfer plates made of porous plates and spacers, being laminated alternately. CONSTITUTION:A heat exchanger part consists of a laminated body 5 made of spacers 1 and heat transfer plates 4, being laminated alternately. Both headers 15 being connected to the upper and the lower edges of a laminated body 5 respectively are composed of an innermost laminated section 12 having fluid flow paths 13 and 14, a plurality of middle laminated sections 16 having each fluid flow path in order to smoothly connect the fluid flow paths 13 and 14 to 10 and 11 respectively, and an outermost laminated section 9 having fluid flow paths 10 and 11, being laminated from inside to outside in turn. Because each header 15 is composed of a laminated structure, it is easy to be manufactured, and is able to be miniaturized. The fluid flow paths 13 and 14 provided to the innermost laminated section 12 are corresponded to the flow paths provided in the spacers 1 in the laminated body 5 that is a heat exchanger, and are smoothly connected to the fluid flow paths 10 and 11 by the flow paths provided in the laminated section 16.
    • 目的:为了使热交换器小型化并提高其性能,通过统一热交换器部件中每种流体的流速分布,在具有由多孔板制成的传热板组成的集管式热交换器中 和间隔物交替层叠。 构成:热交换器部件由交替地层叠的由间隔件1和传热板4制成的层叠体5构成。 两个集管15分别连接到层叠体5的上边缘和下边缘,分别由具有流体流路13和14的最内层压部分12组成,多个中间层压部分16具有每个流体流动路径以平滑 将流体流路13,14分别连接到10和11,并且具有流体流动路径10和11的最外层压部分9依次从内到外层压。 由于每个集管15由层叠结构构成,所以易于制造,能够小型化。 设置在最内层叠部12的流体流路13,14对应于作为热交换器的层叠体5中的间隔件1中设置的流路,并且通过该流路10,11平滑地连接到流体流路10,11 设置在层压部分16中的流动路径。
    • 42. 发明专利
    • METHOD AND DEVICE FOR AUTOMATIC OPERATION OF UNIFORM PIPE EXPANDING APPARATUS
    • JPS5650734A
    • 1981-05-08
    • JP12540779
    • 1979-10-01
    • HITACHI LTD
    • MAKINO TOSHIAKIKANBARA HIDEAKIYOSHITOMI YUUJITAKADA TADASHI
    • B21D39/20B21D22/02B21D22/10
    • PURPOSE:To uniformly expand a pipe and automate the pipe expansion by detecting the extending and contracting positions of a cylinder rod, the external pressure of the rod and the temperature of pressure oil and controlling the flow rate and pressure of the pressure oil in correspondence to the detected values. CONSTITUTION:A pipe expanding apparatus is set and the SOL1 of a directional change-over valve 36 is energized to supply pressure oil to the rod side of a cylinder 8 and return the pressure oil on the head side to a tank 4. At this time, a computer 41 is inputted with the signals from the displacement sensor 29, force sensor 30 and temperature sensor 31 of the cylinder 8, and outputs the signals corresponding to the preset speed pattern 51 and pressure pattern 52 respectively to operate a proportional electromagnetic flow rate control valve 35 and a proportional electromagnetic pressure control valve 34, so that the cylinder 8 is extended and contracted. In the computer 41, the speed and pressure of the cylinder 8 are operated by the force signal from a uniform pipe expanding member 24 and the signals from the sensors 29, 31 and are compared with the patterns 51, 52, according to the difference whereof the cylinder 8 is driven, whereby the pipe expanding is performed uniformly.
    • 48. 发明专利
    • LOW TEMPERATURE COOLING DEVICE
    • JPH02157575A
    • 1990-06-18
    • JP31203588
    • 1988-12-12
    • HITACHI LTD
    • MATSUMOTO KOZOTAKADA TADASHI
    • F25D3/10F25D7/00
    • PURPOSE:To enable improvement of operability of operation for cooling a substance to be cooled by a method wherein a means to circulate a refrigerant between the substance to be cooled and a heat exchanger and a means to cool the heat exchanger by means of liquefied gas are contained in vacuum atmosphere, and at least vacuum atmosphere in which the substance to be cooled is present is brought into an independent state. CONSTITUTION:A vacuum holding means to form vacuum atmosphere is formed with a vacuum cold insulating tank 1 and a vacuum chamber 2, and the vacuum cold insulating tank 1 is divided from the vacuum chamber 2 by means of a sample table 22. A cooling flow passage 23 is formed in the sample table 22. The one of the cooling flow passage 23 is connected to the one of a heat exchanger 21, the other is connected to the other of the heat exchanger 21, in order, through a buffer tank 25, a circulating pump 20, and a buffer tank 24 to form a circulating line 26. A return line 17 connected to a heat exchanger 16 mounted to the cold part of a cold machine 10 of a freezer 10 through a return pump 15 is connected to the upper part of a heat exchanger 12. A feed line 14 running from a storage tank 11, containing a heat exchanger 16, to the heat exchange container 12 through a flow rate regulating valve 13 is provided.
    • 49. 发明专利
    • SEPARATOR
    • JPH01293115A
    • 1989-11-27
    • JP12178888
    • 1988-05-20
    • HITACHI LTD
    • SAHO NORIHIDETAKADA TADASHIHARADA SUSUMUSADO SHINTARO
    • B01D46/00B01D46/12B01D46/24B01D46/42F04B39/16
    • PURPOSE:To miniaturize the group of separators and to reduce the pressure loss and the gas leakage making the separator in such a structure that the main body is a pressure vessel having plural spaces partitioned with plural filter walls for removing liquid drops in the inner part of the separator. CONSTITUTION:The refrigerant, such as helium gas, used in a refrigerator 1, is compressed by a compressor 2 and introduced into the separator A after the compression heat is removed by a cooler 3. The gas is flowed into a 1st filter 6 in the separator A through an ejector 5, and the oil drops in the gas are separated and stored in a groove 9 and returned to the compressor 2 through an oil returning port 10 and a piping 11. As a 3rd and a 4th filters 12, 13 are concentrically disposed respectively, the gas is flowed from inner part to outer part through the filters, and the oil is caught and removed, and the remaining fine oil drops and the oil vapor contained in the gas having left the 4th filter 13 are introduced into an adsorber 4 to be adsorbed and removed by adsorbent 18, such as activated carbon.