公开(公告)号：US3850801A

公开(公告)日：1974-11-26

申请号：US36771673

申请日：1973-06-07

Applicant: MCQUAY PERFEX INC

Inventor： PEARSON P

IPC: B01D21/00 ,  C02F1/02 ,  C02F3/08 ,  C02F3/12 ,  C02F3/28 ,  C02F3/30 ,  C02B3/04 ,  C02C1/04

CPC classification number: C02F3/082 ,  B01D21/00 ,  B01D21/009 ,  B01D21/30 ,  B01D21/302 ,  B01D21/34 ,  C02F1/02 ,  C02F3/1242 ,  C02F3/28 ,  C02F3/301 ,  C02F2103/005 ,  Y02W10/15

Abstract: A highly efficient and compact biological waste treatment system for use in conjunction with an anaerobic holding tank to provide a high degree of purification for use in areas where municipal sewer systems are unavailable. A pump conveys anaerobically treated sewage from the septic tank to a biological oxidation tank which employs a plurality of partially submerged discs providing a surface for the growth of bacterial slimes. A motor rotates the discs so that the bacteria can oxidize the sewage thereby removing substantially all of the biochemical oxygen demand. After dropping to a settling tank, from the bottom of which sludge is returned to the septic tank, the clarified supernatant is passed through a filter to a high efficiency sterilizer which utilizes a heat exchanger. An artificial feed system is provided to supply nutrients to keep bacteria in the biological oxidation tank alive during extended periods of nonuse of the system.

Abstract translation: 一种高效紧凑的生物废物处理系统，与厌氧储罐结合使用，可提供高度纯化，用于市政下水道系统不可用的地区。 泵将厌氧处理的污水从化粪池输送到生物氧化池，其使用多个部分浸没的盘，其提供用于细菌滋生生长的表面。 电机旋转盘，使得细菌可以氧化污水，从而消除基本上所有的生化需氧量。 滴入沉淀槽后，从底部返回污泥池，将澄清的上清液通过过滤器，使用热交换器进行高效灭菌。 提供人造饲料系统以在不使用系统的较长时间内提供营养物质以保持生物氧化罐中的细菌活着。

公开(公告)号：US3846616A

公开(公告)日：1974-11-05

申请号：US34044773

申请日：1973-03-12

Applicant: MCQUAY PERFEX INC

Inventor： BECK J

IPC: F24H3/04 ,  F24H7/00 ,  H05B3/50 ,  H05B1/00 ,  F24H3/00

CPC classification number: F24H3/0405 ,  F24H7/002 ,  H05B3/50 ,  Y10T137/6606

Abstract: A portable electrically operated gas heater for heating gases for use in curing sand molds. An electrical heating element fits tightly inside a bore in a heat exchange tube having sufficient mass for providing a reservoir for storage of a substantial amount of heat. The heat exchange tube is provided with fins on its outside and an inner shell fits around the fins to define a gas heating passage. An insulative outer shell is secured to the outside of the inner shell. An inlet port to the passage is provided for receiving cold gas from a pressurized source through a control valve and an outlet port from the passage is provided for distributing the gas after contact with the heat exchange fins in the passage. An automatic reset timer is connected to the control valve and is operative to open the valve for a predetermined period of time to deliver a burst of gas. Heater control means including a thermostat is provided for controlling the energization of the heating element to maintain a predetermined tempertaure within the gas heating passage. The heater control means is operable independently of the timer for continual energization of the heating element, under control of the thermostat, to store heat in the reservoir prior to delivery of a burst of gas by the timer. This storage of heat permits the use of a lower wattage heating element than would otherwise be necessary in order to instantaneously heat the burst of gas.

Abstract translation: 一种用于加热用于固化砂模的气体的便携式电动气体加热器。 电加热元件紧密地配合在具有足够质量的热交换管的孔内，以提供用于储存大量热量的储存器。 热交换管在其外部设置有翅片，并且内壳围绕翅片配合以限定气体加热通道。 绝缘外壳固定在内壳的外部。 提供通道的入口用于从加压源通过控制阀接收冷气体，并且提供来自通道的出口，用于在与通道中的热交换翅片接触之后分配气体。 自动复位定时器连接到控制阀，并且操作以在预定的时间段内打开阀以输送气体。 提供包括恒温器的加热器控制装置，用于控制加热元件的通电，以保持气体加热通道内的预定温度。 加热器控制装置独立于定时器操作，用于在恒温器的控制下持续加热加热元件，以在由定时器传送气体之前储存热量。 这种热量的储存允许使用比为了瞬时加热气体爆发所需要的低功率加热元件。