45results about How to "Avoid cross flow" patented technology

A falling film evaporator is provided for use in a two-phase refrigeration system or process system. The evaporator includes a shell having an upper portion, a lower portion, and a tube bundle having tubes extending substantially horizontally in the shell. A hood is disposed over the tube bundle, the hood having an upper end adjacent the upper portion above the tube bundle, the upper end having opposed substantially parallel walls extending toward the lower portion, the walls terminating at an open end opposite the upper end. Once liquid refrigerant or liquid refrigerant and vapor refrigerant is deposited onto the tube bundle, the substantially parallel walls of the hood substantially prevent cross flow of refrigerant vapor or liquid and vapor between the tubes of the tube bundle.

A variety of methods for operating a chromatography system are presented. Specifically, methods for operating a pumping system within a chromatography system are presented. The methods presented are directed to pumping apparatus in which very small amounts of fluid are pumped through the system. A number of techniques for detecting and compensating for leaks are presented as well as a number of techniques for operating the pumping system.

A variety of methods for operating a chromatography system are presented. Specifically, methods for operating a pumping system within a chromatography system are presented. The methods presented are directed to pumping apparatus in which very small amounts of fluid are pumped through the system. A number of techniques for detecting and compensating for leaks are presented as well as a number of techniques for operating the pumping system.

A plurality of guide vanes (34) in a variable turbine geometry turbocharger (10) regulates a flow of exhaust gas. The guide vanes (34) are selectively adjustable between an open position to allow the flow of exhaust gas to drive a turbine wheel (24) and a closed position to block the flow of exhaust gas. A first flow feature (58) is disposed on first (44) and second (46) edges of the guide vanes (34) to disturb the flow of exhaust gas to prevent leakage of exhaust gas around the first (44) and second (46) edges. A second flow feature (64) is disposed on front (60) and rear (62) surfaces of the guide vanes (34) to channel the flow of exhaust gas between adjacent guide vanes (34) when the guide vanes (34) are in the open position to prevent swirling and / or cross flow of the exhaust gas.

The invention provides a basement comprehensive water discharge system, which belongs to a self flowing and forced water discharge combined measure of preventing the re-injection of outwards discharged sewage of a water consuming point with great outdoor pipe network buried depth and the indoor pipe network ground elevation lower than outdoor pipe network ground elevation through possible self flowing. The basement comprehensive water discharge system comprises a user pipe 1, a cutting pipe 2, an external sewage pipe 3, a check valve plate 4, a water collecting well 5, an outdoor drain well 6, a sewage lifting pump 7, a pressure pipe 8, an out-leading pipe design maximum water line 9, a low level pump stop water level contact 10, a high level pump starting water level contact 11 and a local control box 12, wherein the pipe top elevation of the external sewage pipe 3 is lower than the out-leading pipe design maximum water line 9; the cutting pipe 2 is cut from the intersection part of the cutting pipe 2 and the external sewage pipe 3 to the out-leading pipe design maximum water line 9; if the external sewage pipe 3 is fully filled through water bursting, sewage can overflow from the cutting pipe 2 to the water collecting well 5; when the water level in the water collecting well 5 reaches the high level pump starting water level contact 11, the sewage lifting pump 7 starts; when the water level is reduced to 10 through water pumping, the sewage lifting pump 7 stops working, so that the re-injection of the sewage lifting pump 7 and the indoor part is avoided; when the outdoor pipe network generates a water level raising phenomenon, the check valve plate 4 is closed; and when the condition is normal, the check valve plate 4 is opened, and the self flowing water discharge is performed.

The invention discloses construction waste processing equipment, comprising a horizontal plate, a crusher and a first blanking plate, a crusher is installed on the left side of the upper surface of the horizontal plate, and a discharge port of the crusher is fixedly connected with The first blanking plate, the lower left side of the first blanking plate is equipped with a material blocking device, the construction waste treatment multi-directional lap joint combination equipment, through the H-shaped plate, the first motor, threaded rod, gear and T-shaped The mutual cooperation between structures such as the tooth plate can make the first motor drive the gear to rotate through the threaded rod, and the gear drives the T-shaped tooth plate to move, thereby blocking the garbage. Through the first connecting rod, the third motor, The mutual cooperation between the cam, water spray pipe, water pump and water tank and other structures can make the third motor drive the second connecting rod to move through the cam, and the second connecting rod drives the water spray pipe to reciprocate. The water is used to reduce dust and protect the environment.

The invention discloses a paper width quantitative device of coarse tuning and micro-turning diluted water, which comprises the following parts: main pipe of diluted water, adjusting valve of diluted water, branch pipe of diluted water and diluted water mode, wherein the diluted water mode is set between paste inlet pipe of paste flowing box and distributing pipe beam; two cases of main pipe of diluted water, adjusting valve of diluted water and branch pipe of diluted water use one diluted water mode, which constitutes the coarse turning system and micro-turning system of diluted water. The invention adopts reasonable adding pattern to avoid diluted water from flowing transversely in the paste-flowing box, which improves width quantitative effect and control precision of diluted water.

The invention relates to a drill machine, in particular to a pile type integral soil taking device of a base pillar. The pile type integral soil taking device comprises a tube body connected at the lower end of a drill rod, and the pile type integral soil taking device further comprises a hydraulic cylinder, wherein a cylinder body end of the hydraulic cylinder is fixedly connected with the inside of the drill rod, a piston end of the hydraulic cylinder is led into the tube body, and a piston is slidingly connected in the tube body. The pile type integral soil taking device can fast finish pile hole construction of large-dimension pillars, and ensures the construction site to be dry and clean.