CN2777514Y

CN2777514Y - Water level tester for solar water heater

Info

Publication number: CN2777514Y
Application number: CNU2005200798874U
Authority: CN
Inventors: 韩宝苓; 方庆香
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-10
Filing date: 2005-01-10
Publication date: 2006-05-03
Anticipated expiration: 2015-01-10

Abstract

The utility model discloses a water level tester for a solar water heater. The utility model is characterized in that a floater is fixed on a vertically arranged pipe through a soft conducting wire, and is entirely arranged in water; the conducting wire is connected with a water level alarm controller through the pipe; the floater is formed by a mercury switch or a ball switch externally coated with foam material. As the water level tester for a solar water heater provided by the utility model does not use water as a conducting medium, the utility model avoids the problem of the past sensors that the sensors are failure due to water scale, etc. The utility model has practical significance on raising the reliability of the solar water heater and reducing the maintenance cost.

Description

A kind of solar water heater condensate tank of dehumidifier

Technical field: the utility model belongs to condensate tank of dehumidifier, specifically about a kind of condensate tank of dehumidifier that is used for solar water heater.

Background technology: solar water heater is widely used, and has made huge contribution for energy savings, protection environment.But in the solar water heater industry, the condensate tank of dehumidifier of water tank exists the failure rate height always, detects inaccurate problem.Its main cause is that most pick-up unit is that a series of detecting electrode is set on the water level detecting position, these electrodes are immersed in the water or are exposed in the air, utilize detected water as conducting medium,, can detect the height of water level as long as detect electrode and water conducting.This detection method exists many defectives, and the one, after long-time the use, the compound of the calcium that dissolves in the water covers on the electrode gradually, forms the incrustation scale of one deck densification, has completely cut off the conductive characteristic between electrode and the water, and condensate tank of dehumidifier was lost efficacy; The 2nd, owing to be immersed in the water for a long time, electrode easily seeps water, and causes short circuit between check point and the electrode, and condensate tank of dehumidifier was lost efficacy.

Summary of the invention: the purpose of this utility model is to adopt the float of sealing to come sensed water level, and overcoming with water is the electrolyte sensed water level, the problem that electrode easily lost efficacy.The technical solution of the utility model is achieved in that differing heights is provided with a plurality of floats on demand in solar water heater water tank, float is connected with water level detection gauge by soft lead, and float when water level does not arrive the detection position is because action of gravity is in the state of hanging low; Float is in float state when water level arrives the detection position.

The float inner sealing a mercury cut-off or ball switch, and when float was in float state, mercury or ball in the float were connected electrode, can detect the conducting state of switch by the soft lead that links to each other with switch.When water level did not arrive the detection position, float was in the state of hanging low owing to action of gravity, the other end that mercury in the float or ball will be in switch, and electrode disconnects, and can detect the off-state of switch by the soft lead that links to each other with switch.

A series of float is made one, just become a level sensor, the water level that adopts this method can grasp at any time in the water tank just changes.

The float of description of drawings: Fig. 1, sealing and water action principle figure Fig. 2, the mercury cut-off that floats, mercury is with electrode conduction Fig. 3, sagging mercury cut-off Fig. 4, sagging ball switch Fig. 5, the ball switch that floats, and ball is with electrode conduction

Among the figure: the lead 5-expanded material shell 6-mercury 7-metal balls 8-electrode of 1-float switch 2---mercury cut-off capsul 3--ball switch capsul 4-connection electrode

Embodiment: as shown in drawings, mercury cut-off and ball switch all have sale on market, buy outer bread layer of polyethylene in back or polyurethane expanded material, make it in water, produce buoyancy, the fixed distance that this float is certain at interval is on a vertical pipe of placing, integral body places water, and lead connects with the water-level alarm controller by pipe, has constituted the solar water heater condensate tank of dehumidifier.

Solar water heater condensate tank of dehumidifier of the present utility model, because water is not as conducting medium, thereby avoided used in the past sensor because incrustation scale etc., and the faulty sensor problem that produces is to the reliability that improves solar water heater, reduce maintenance cost and have practical significance.

Claims

1, a kind of solar water heater condensate tank of dehumidifier, it is characterized in that: differing heights is provided with a plurality of floats (1) on demand in solar water heater water tank, float (1) is connected with water level detection gauge by soft lead (4), float when water level does not arrive the detection position is because action of gravity is in the state of hanging low, and electrode (8) disconnects; Float (1) is in float state when water level arrives the detection position, and electrode (8) is connected.

2, a kind of solar water heater condensate tank of dehumidifier according to claim 1, it is characterized in that: described float is a mercury cut-off in (1).

3, a kind of solar water heater condensate tank of dehumidifier according to claim 1, it is characterized in that: described float is a ball switch in (1).