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Control method for air heater

A control method and hot air blower technology, applied to dryers, air heaters, fluid heaters, etc., can solve the problems of single control function of hot air blower, temperature control and air volume can not be controlled at the same time, so as to protect safety and save energy , the effect of low energy consumption

Inactive Publication Date: 2015-07-29
LIUZHOU KAITONG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for controlling the hot air blower, which can solve the problem that the existing hot air blower has a single control function and cannot control the air volume at the same time when controlling the temperature

Method used

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  • Control method for air heater

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0014] This hot air blower control method adopts such as figure 1 A hot air blower control system is shown, the system includes a temperature sensor 2 connected to the temperature control interface end a and the temperature control interface end b of the frequency converter 1; the air volume control interface end c and the air volume control interface end of the frequency converter 1 d is connected with the air volume sensor 3; the start interface end e and the start interface end f of the frequency converter 1 are connected with a switch 7; the signal output end of the frequency converter 1 is connected with the electric heating tube 4 and the time relay 6, and the contact of the time relay 6 The ends are connected in series with the motor 5; the electric heating tubes 4 are multiple connected in parallel.

[0015] Its control method is as follows:

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Abstract

The invention discloses a control method for an air heater and belongs to the technical field of fan equipment. The method adopts an air heater control system and comprises the following steps of pressing down a switch to enable an electric heating tube to heat, delaying a time relay for 15 minutes and then connecting; meanwhile, sensing a real-time temperature signal in a hot air chamber and transmitting the temperature signal to a frequency converter by a temperature sensor; comparing the temperature signal with a preset rated temperature range, controlling the voltage amplitude of the electric heating tube and further enabling the temperature to be positioned within the rated temperature range by the frequency converter; besides, sensing a real-time air quantity signal in the hot air chamber and transmitting the air quantity signal to the frequency converter by an air quantity sensor; comparing the air quantity signal with the preset rated air quantity range, controlling the voltage amplitude of a motor and further enabling the air quantity to be positioned within the rated air quantity range by the frequency converter. According to the control method disclosed by the invention, the problem that as an existing air heater is single in control function, the temperature and the air outlet volume cannot be simultaneously controlled can be solved.

Description

technical field [0001] The invention relates to the technical field of fan equipment, in particular to a temperature-controllable and temperature-controllable hot air blower. Background technique [0002] Hot air blower is a kind of drying equipment widely used. An existing hot air blower includes a heater and a blower connected to a power supply. A temperature sensor connected to the heater through a relay is arranged at the air outlet of the hot air blower. , turn on the power supply of the blower, the blower blows the air into the heater, so that the air passes through the inner and outer sides of the spiral heating wire evenly, and the heat generated by the heating wire exchanges heat with the cold air passing through, so that the air outlet When the air temperature rises, when the temperature at the air outlet rises to a predetermined value, the temperature sensor transmits a signal to the relay to disconnect the relay, thereby cutting off the connection between the hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H3/04F24H9/20F26B21/00
Inventor 朱东生韦瑞迁覃竹丘
Owner LIUZHOU KAITONG MACHINERY
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