Topic
Gas heater
About: Gas heater is a research topic. Over the lifetime, 1799 publications have been published within this topic receiving 6169 citations.
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Patent•
23 Aug 2019
TL;DR: In this paper, a titanium alloy combustion test device and a test method for aviation engines is presented. But the test method is not suitable for the case of aircraft engines, since the test parameters such as the ignition time and the test precision are high.
Abstract: The invention belongs to the technical field of aviation engines, and relates to a titanium alloy combustion test device and a test method thereof. The test device includes a combustion chamber, a fiber laser, a gas supply pipe, an exhaust pipe, a gas cylinder set, a mass flow controller, a check valve, a gas heater, an intake valve, a pressure control valve, an exhaust valve, a camera, and an infrared temperature sensor, a pressure sensor, a thermocouples, a sample heating device, a sample holder, a computer and the like. The gas cylinder set is used as a gas source, the gas heater heats thegas, the mass flow controller and the pressure control valve control the pressure in the combustion chamber, the sample heating device heats a sample, the fiber laser ignites the sample, a titanium alloy material/component combustion test with simulation conditions of a gas temperature to be 500 to 600 DEG C, the pressure to be 1.0 to 1.5 MPa and the sample temperature to be 600 to 900 DEG C can be realized, a computer program is adopted to control the test parameters such as the ignition time, and the test precision is higher. The test device has a compact structure, the mounting is convenient, the test cost is low, the urgent needs for aircraft engine titanium alloy combustion characteristic evaluation at preset and in the future can be met, and the application prospect is wide.
2 citations
Patent•
24 Dec 2003
TL;DR: In this paper, a cold spray apparatus having a powder preheating device, capable of obtaining high deposition rate and excellent coating layer under the same spray processing conditions, was presented, where a powder feeder receives residual gas under the control of the gas controller and supplies a coating powder together with the residual gas, and a mixing chamber mixes the heated main gas with the preheated coating powder.
Abstract: A cold spray apparatus having a powder preheating device, capable of obtaining high deposition rate and excellent coating layer under the same spray processing conditions by preheating coating powder before a coating process. Also, a manufacturing method of nano-structured super-high hardness WC-Co coating having high abrasive wear resistance and fracture toughness obtained by spraying WC-Co powder using the cold spray apparatus. In the cold spray apparatus, a gas controller controls gas supply amount of main gas and residual gas (gas that is not supplied toward the main gas), and a gas heater heats the main gas supplied under the control of the gas controller. A powder feeder receives the residual gas under the control of the gas controller and supplies a coating powder together with the residual gas. A powder preheating device preheats the coating powder supplied from the powder feeder, and a mixing chamber mixes the heated main gas with the preheated coating powder. A temperature controller adjusts temperature by controlling the powder preheating device and the gas heater, and the coating powder mixed in the mixing chamber is sprayed through a nozzle.
2 citations
Patent•
17 Aug 2016
TL;DR: In this article, the utility model discloses a variably rise number gas heater, including: gas heater body, gas proportional valve, main control unit and operation display ware, the user can initiatively change the number that rises of water heater, and heat production outlet capacity promptly accomplishes really that a machine uses as the multiple number model that rises, has increased gas heater's usability, can satisfy different crowds' water demand, again can the energy saving, avoid the unnecessary wasting of resources
Abstract: The utility model discloses a variably rise number gas heater, include: gas heater body, gas proportional valve, main control unit and operation display ware, gas proportional valve and main control unit install on the gas heater body, signal connection between gas proportional valve and the main control unit, also signal connection between operation display ware and the main control unit, its characterized in that is equipped with the change that is used for gas proportional valve's maximum opening adjusts different gears and rises the button on the operation display ware During the in -service use, the user can initiatively change the number that rises of water heater, and heat production outlet capacity promptly accomplishes really that a machine uses as the multiple number model that rises, has increased gas heater's usability, can satisfy different crowds' water demand, again can the energy saving, avoid the unnecessary wasting of resources
2 citations
Patent•
31 May 2017
TL;DR: In this paper, a central gas heater of memory alloy check valve, including main control unit, heat exchanger on the water heater body, connect advancing the cold water pipe, go out the hot -water line on heat exchange, connect the water consuming point on a hot-water line to and connect at the consuming point and advance the cold-water branch pipe between the cold -water pipe.
Abstract: The utility model discloses a take central gas heater of memory alloy check valve, include: main control unit, heat exchanger on the water heater body are installed to the water heater body, connect advancing the cold water pipe, go out the hot -water line on heat exchanger, connect the water consuming point on a hot -water line to and connect at water consuming point and advance the cold water branch pipe between the cold water pipe, be equipped with the memory alloy check valve that communicates a hot -water line and cold water branch pipe in distal end water consuming point department, the memory alloy check valve risees and reduces valve opening along with the temperature, go out hot -water line, memory alloy check valve, cold water branch pipe and advance the cold water pipe to constitute circulation circuit, be equipped with the water flow sensor, the circulating water pump that are connected with main control unit on circulation circuit. The utility model discloses whether can determine according to circulating water flow's change to arrive the hot -water heating in the hot -water line sets for the temperature to guarantee that the water in the hot -water line is hot water, the water in the cold water pipe is cold water, also realizes opening promptly coldly promptly on reaching the basis of opening the instant heating promptly.
2 citations