Probe type variable-frequency continuous water replenishing device and control method

A water supply device and probe-type technology, which is applied in the direction of controlling water supply, preheating, steam generation, etc., can solve the problems of high user skills and high operation and maintenance costs, and achieve the effects of stable control system, convenient later maintenance, and simple process

Pending Publication Date: 2021-01-29
ANYANG FRSTD BOILER
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Problems solved by technology

[0004] However, the existing single-pulse variable-frequency water replenishment system is complicated, requires high operation and maintenance costs, and requires high-skilled users

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  • Probe type variable-frequency continuous water replenishing device and control method

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Such as figure 1 As shown, as a preferred embodiment of the present invention, a probe-type frequency conversion continuous water replenishment device includes a liquid level tube communicated with the water tank of the boiler, and also includes a controller. Four probes for measuring different liquid levels of the water tank, and the four probes are divided into the first probe, the second probe, the third probe and the fourth probe from top to ...

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Abstract

The invention belongs to the technical field of boiler equipment, and particularly discloses a probe type variable-frequency continuous water replenishing device and a control method. The probe type variable-frequency continuous water replenishing device comprises a liquid level cylinder communicated with a water tank of a boiler and a controller, and four probes which are respectively positionedat different heights to measure different liquid level heights of the water tank are arranged in the liquid level cylinder; and the probes are electrically connected with the controller, the controller is electrically connected with a water pump through a frequency converter, and continuous water replenishing is achieved through the simple liquid level cylinder and a digital-to-analog converter. According to the probe type variable-frequency continuous water replenishing device, a step analog quantity formed by the simple electrode probes is used for changing the liquid level and time in realtime through a control processing module to form a continuous output analog quantity so as to control the frequency converter to convey different frequencies, so that the purpose of continuous water replenishing is achieved by controlling the water yield of the water pump.

Description

technical field [0001] The invention relates to the technical field of boiler equipment, in particular to a probe type frequency conversion continuous water supply device and a control method. Background technique [0002] The automatic control system of the boiler includes an automatic water replenishment control system. Since the water in the boiler will eventually be output to the heating supply system in the form of steam, in order to ensure the normal operation of the system, it is necessary to ensure a certain water level in the boiler. [0003] When the water supply automatic control system is working normally, start the water supply pump, the water pump will work continuously, the water level sensor will detect the water level signal, and the control unit composed of intelligent water level adjustment instruments and other equipment will adjust and direct the electric control valve to adjust the opening, and perform automatic water supply flow Control and keep the bo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22D5/32
CPCF22D5/32
Inventor 王武学陈新军王伟刘秀君
Owner ANYANG FRSTD BOILER
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