CN105716290A

CN105716290A - Water flow sensor with pressure reducing function

Info

Publication number: CN105716290A
Application number: CN201410763872.3A
Authority: CN
Inventors: 刘伶; 刘成
Original assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Current assignee: Guangdong Shunde Guangsheng Electrical Appliance Co Ltd
Priority date: 2014-12-03
Filing date: 2014-12-03
Publication date: 2016-06-29

Abstract

The invention discloses a water flow sensor with a pressure reducing function. The water flow sensor is composed of a main body, a cover plate, sealing parts, a spring, an installation cover plate, a sensing element, a connecting terminal, an impeller or a rotor or a Hall element, a piston, a connector and water inlets, and is divided into a functional assembly A and a functional assembly B. The functional assembly A outputs pulse signals or current signals or voltage signals by sensing the water flow rate when water flows, so that an intermediate relay is pulled in, circuits are turned on, and one or more sets of electric heating pipes are electrified to work; and when water is cut off, water stops flowing, the circuits are turned off, and the electric heating pipes stops heating. The functional assembly B can automatically regulate the pressure in a water tank and does not prevent the water from entering the water tank when water flows in; when the water tank is filled with the water or the water inlet amount is larger than the water outlet amount and the pressure in the water tank is increased, backpressure is generated at the big end of the piston 9, so that the piston is moved to turn down or even close the water inlets 11; and during water discharging, the water inlets are opened repeatedly. The effect that the pressure in the water tank is within 0.15 mpa is ensured through the function.

Description

There is the water flow sensing unit of decompression

Technical field

The present invention relates to the water flow sensing unit of decompression, relate generally to the water flow sensing unit having decompression for electric heater (containing central electric water heater) and solar energy, air-source water heater.

Background technology

The inlet pipeline of existing electric heater and solar energy, air-source water heater, directly it is connected with water source, and feed the water into water tank, being called inlet pipeline, this pipeline is not provided with miscellaneous part, therefore the rated pressure in water tank is 0.6mpa, test press-in is 1.2mpa, this water tank there will be crackle, leaks and explodes, more can not with nonmetal making water tank.

Summary of the invention

The present invention provides a kind of (for electric heater and solar energy, air-source water heater) with the water flow sensing unit of decompression, by main body 1, cover plate 2, sealing member 3, spring 4, cover plate 5, sensing element 6, binding post 7, impeller or rotor or Hall element 8 are installed, piston 9, interface 10, water inlet 11 are constituted.The described water flow sensing unit with decompression, is consisted of multifunctional module by two functional parts A and B.

Part A, when having water to flow, water jet propulsion impeller or rotor or Hall element 8 rotate, and by the sensing to discharge, the signal such as output pulse signal or electric current, voltage, makes auxiliary reclay adhesive, circuit turn-on, one or more groups electrothermal tube energising work；When closing water, water retention fluid stopping is moved, and circuit disconnects, and electrothermal tube stops heating；

Part B, piston 9 small end has a cross through hole, and also there is a through hole centre, during water inlet, water passes through transverse holes, enters in water tank from piston 9 interstitial hole, during water inlet, do not stop the entrance of water, when the built-in full water of water tank or inflow are more than water yield, when in water tank, pressure increases, the big end of piston 9 produces back pressure, make piston displacement, turn down and be even switched off water inlet 11；When discharging water, water inlet repeats to open；It is thus possible to the pressure in self-regulating water tank, this function guarantees that the pressure in water tank is within 0.15mpa；Having the water flow sensing unit of decompression, bis-functional parts of A, B, can be stand-alone assembly, part A be contained in inlet pipeline, and part B inlet and outlet pipe all can be installed.

Beneficial effects of the present invention and novelty are in that, after adopting multifunctional module in electric heater and solar energy, air-source water heater, the pressure of water tank is very low, and water tank makes material can be thinning, reduce manufacturing cost, simultaneously can with nonmetal making water tank.

Accompanying drawing explanation

Fig. 1, Fig. 2, Fig. 3 are the structure chart of the water flow sensing unit having decompression；

Detailed description of the invention

In accompanying drawing, with the main body 1 of water flow sensing unit of decompression, cover plate 2, sealing member 3, spring 4, cover plate 5, sensing element 6, binding post 7, impeller or rotor or Hall element 8, piston 9, interface 10, water inlet 11 are installed.

Fig. 1, Fig. 2, Fig. 3 provided by the present invention a kind of include central electric water heater and the water flow sensing unit having decompression of solar energy, air-source water heater for electric heater.

The described water flow sensing unit having decompression, is made up of two functional parts of A and B, for multifunctional module:

Part A, when having water to flow, water jet propulsion impeller or rotor or Hall element 8 rotate, by to the sensing of discharge by sensing element 6 output pulse signal or the signal such as electric current, voltage, make auxiliary reclay adhesive, circuit turn-on, one or more groups electrothermal tube energising work；When closing water, water retention fluid stopping is moved, and circuit disconnects, and electrothermal tube stops heating；

Part B, piston 9 small end has a cross through hole, and there is a through hole centre, during water inlet, water passes through transverse holes, empty in the middle of piston 9, in entrance water tank, during water inlet, do not stop the entrance of water, when the built-in full water of water tank or inflow are more than water yield, when in water tank, pressure increases, the big end of piston 9 produces back pressure, makes piston displacement, turns down and be even switched off water inlet 11；When discharging water, water inlet repeats to open；Thus the pressure in self-regulating water tank, this function guarantees that the pressure in water tank is within 0.15mpa；Having the water flow sensing unit of decompression, A and B can discrete be two stand-alone assemblies, and part A should be contained in inlet pipeline, and part B is arranged on inlet and outlet pipe.

Fig. 1 to Fig. 3, mounting means is different, has vertical and horizontal, and in figure, A and B is divided into two parts, in same water heater, namely begins to be divided into two parts, then connects also within this patent is protected with pipe.

Arrow is water (flow) direction.

Claims

1. there is the water flow sensing unit of decompression, by main body (1), cover plate (2), sealing member (3), spring (4), cover plate (5) is installed, sensing element (6), binding post (7), impeller or rotor or Hall element (8), piston (9), interface (10), water inlet (11) are constituted, it is characterized in that: described in have the water flow sensing unit of decompression, be made up of two functional parts A and B:

Part A, when having water to flow, water jet propulsion impeller or rotor or Hall element (8) rotate, the signal such as output pulse signal or electric current, voltage by the sensing to discharge；Making auxiliary reclay adhesive, circuit turn-on, Guan Shuishi, water retention fluid stopping is moved, and circuit disconnects:

Part B, piston (9) small end has a transverse holes, also there is a hole centre, and during water inlet, water enters water tank by transverse holes from piston (9) interstitial hole, when the built-in full water of water tank or inflow are more than water yield, when in water tank, pressure increases, the big end of piston (9), produce back pressure, make piston (9) displacement, turn down and be even switched off water inlet (11).