Ship integrated variable-air-volume terminal device

Abstract

The invention relates to a ship integrated variable-air-volume terminal device. An adjusting air valve is arranged at the front end of a silencing box. The adjusting air valve is connected with an air valve actuator. The air valve actuator is controlled by a terminal controller. A reheater is installed behind the adjusting air valve. An air feeding collector and a diffuser are installed at the lower end of the silencing box. An air volume measuring device and a temperature measuring device are installed inside the silencing box. The signal ends of the reheater, the air volume measuring device and the temperature measuring device are connected with the terminal controller. Compared with the prior art of variable-air-volume terminal devices, the ship integrated variable-air-volume terminal device is advantageous in that an air distributor is omitted, and the requirement that a certain straight pipe section needs to be installed at the front end is canceled, so that the installation space is substantially improved; the adjusting air valve of the terminal device can be used for adjusting the primary air volume and the secondary air volume and has the two functions of air volume balance adjustment and variable air volume adjustment; no Pitot tube type air volume measuring device is used, air channel pressure difference is directly used for conducting air volume measurement, it is guaranteed that the air volume measuring precision is not affected by the factors of air pipe installation and dust clogging, and the terminal device is compact and miniaturized.

Description

technical field [0001] The invention relates to a ship air conditioner ventilation device, in particular to a ship variable air volume air conditioner terminal device. Background technique [0002] Although variable air volume air conditioners have been widely used in the field of building HVAC at present, and there are mature products to choose from, in ship engineering, due to the particularity of the hull structure, in addition to considering its performance requirements, it must first Select products suitable for on-board installation and layout (see literature: Feasibility analysis of VAV technology in the field of marine air-conditioning [J] Ships 2000. (1). 33-36). , and most of the equipment of the variable air volume air-conditioning system of the building is copied, which leads to the application and promotion of the ship's variable air volume air-conditioning technology. In addition to the need to adapt to special environmental requirements such as salt spray, mo...

AI Technical Summary

Problems solved by technology

The application schematic diagram of the variable air volume terminal device is shown in the attachment figure 1 As shown, in order to realize the accurate measurement of the air volume of the terminal device, a certain length of straight pipe section (generally 4 times the diameter of the air pipe) is required at the front (see the literature: Experimental research on the air volume sensing characteristics of the variable air volume terminal device [J] Fluid Machinery 2011.39 (1)), the air is sent to the air distributor 22 after being regulated by the variable air volume terminal device 21. This application method needs to install the variable air volume terminal device 21 and the air distributor 22 inside the cabin, and at the same time, it is necessary to ensure that the variable air volume terminal device There are enough straight pipe sections at the inlet to meet the requirements of accurate air volume measurement. The above space requirements are almost difficult to achieve for the compact ship cabins, which brings great difficulties to the application of variable air volume air conditioning technology on ships.

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