Special Design for TU-1H02 thermal wax actuator for thermostatic radiator valve Export to Bulgaria
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Special Design for TU-1H02 thermal wax actuator for thermostatic radiator valve Export to Bulgaria Detail:
1. Operation Principle
The Thermostatic Wax that has been sealed in shell body induces expansion by a given temperature, and inner rubber seal part drives its handspike to move under expansion pressure to realize a transition from thermal energy into mechanical energy. The Thermostatic Wax brings an upward movement to its handspike, and automatic control of various function are realized by use of upward movement of handspike. The return of handspike is accomplished by negative load in a given returned temperature.
2. Characteristic
(1)Small body size, occupied limited space, and its size and structure may be designed in according to the location where needs to work.
(2)Temperature control is reliable and nicety
(3)No shaking and tranquilization in working condition.
(4)The element doesn’t need special maintenance.
(5)Working life is long.
3.Main Technical Parameters
(1)Handspike’s height may be confirmed by drawing and technical parameters
(2)Handspike movement is relatives to the temperature range of the element, and the effective distance range is from 1.5mm to 20 mm.
(3)Temperature control range of thermal wax actuator is between –20 ~ 230℃.
(4)Lag phenomenon is generally 1 ~ 2℃. Friction of each component part and lag of the component part temperature cause a lag phenomenon. Because there is a difference between up and down curve of traveling distance.
(5)Loading force of thermal wax actuator is difference, it depends on its’ shell size.
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Abstract:
Agriculture is a source of livelihood of majority Indians and has great impact on the economy of the country. In dry areas or in case of inadequate rainfall, irrigation becomes difficult. So, it needs to be automated for proper yield and handled remotely for farmer safety. In this paper we suggest a Wireless sensor network and Embedded based technique to control water flow for sectored, sprinkler or drip section irrigation. This system will be very economical in terms of the hardware cost, power consumption and call charges.
In places such as agriculture lands, there is a continuous need for monitoring the water level at particular places. In places such as drip irrigation for coconuts and bananas, the water is let out through pipes directly to each field. A person has to carefully monitor the water level at regular intervals. His job becomes tedious during night times and for frequent power cuts. Sometimes there is wastage of water and electricity due to negligence and other times there is a hard job for the user. The project helps in automating this job.
This is highly helpful in places such as drip irrigation system where there are many flow pipes but does not require any change in the agricultural fields. Further there is a wireless communication device consisting of very high frequency transceiver. It helps to coordinate any action between the controlling authority and the fields. So each field can be placed as a separate wireless node and these field transceivers act as a high speed wireless network.
The project proposes a water level sensor at each place where the water has to be monitored. When the motor is switched on the sensors are activated and the fields are irrigated automatically. Once the water reaches a particular level which may even take hours, the system takes appropriate steps to regulate or even stop the water flow.
The farmers’ job gets over immediately after switching the power supply. The circuit also monitors the water in the well/bore well so that if the water level goes very low it switches off the main motor to prevent dry run and also to prevent damage to the motor.
This story took me out into the Santa Cruz Harbor as a group of energy entrepreneurs were showcasing their work for the first time. Even though I thought it was fascinating stuff, I still found myself leaning over the side of the boat to lose my lunch.
