The external optical wave heating metal water tank electric heater of the water flow switch of band decompression is housed
Technical field
The present invention relates to the external optical wave heating metal blowing water-tank electric water heater of the water flow switch that band decompression is housed.
Background technology
Domestic, electric water heater all in the world at present, inlet pipeline is connected with water source, from water inlet to water tank, other assemblies are not installed, all can not pressure in self-regulating water tank, water tank is all adopt pressure-bearing type structure, rated pressure is generally 0.6Mpa, and test pressure is 1.2Mpa; This pressure there will be many insoluble problems; The water tank that such as expands with heat and contract with cold can crackle, leak, pressure conference blast, be world-famous puzzle.
Summary of the invention
The present invention improves the electric heater that existing metal material makes water tank, for being equipped with the optical wave heating metal water tank electric heater of the water flow switch of band decompression after improvement, by shell 1, water inlet pipe 2, outlet pipe 3, the water flow switch 4 with decompression, optical wave heating electrothermal tube 6, water tank 8, water nozzle 9, flange 11, relief valve 14; At the outlet pipeline of water tank 8, fast heating device 16 is housed to form.
The described water flow switch 4 with decompression, is made up of A, B bis-functional parts:
Part A, in main body 4-1, the passage of water inlet and water outlet is not directly communicate, but separated by cover plate 4-2, when there being water flow, water can be forced promotion cover plate 4-2, simultaneously promotion seal 4-3 with impeller 4-4 and movable contact 4-9 contacted with stationary contact 4-8 or microswitch 4-7 is connected, circuit turn-on: when current are closed, water inlet is closed, and circuit also disconnects.(in figure spring 4-5, installation cover plate 4-6, binding post 4-10)
Part B, piston 4-12 small end has a cross through hole, and centre is also porose, during water inlet, water, by transverse holes, enters in water tank from piston 4-12 interstitial hole, during water inlet, not the entering, when the in-built full water of water tank or inflow are greater than water yield, in water tank during pressure increase of block water, piston 4-12, large end produces back pressure, and piston 4-12 is subjected to displacement, and turns down and even closes water inlet 4-14; When discharging water, water inlet repeats to open; Thus can pressure in self-regulating water tank, this function guarantees that pressure in water tank is within 0.15mpa.
Described water tank 8 adopts metal material to make, comprise enamel cistern or stainless steel water tank, and on water tank water intake pipeline the water flow switch 4 of mounting strap decompression, at the outlet pipeline of water tank 8, fast heating device 16 is housed, in water tank, is equipped with corresponding relief valve simultaneously.
Described external optical wave heating, electrothermal tube 6 nonmetallic halogen or carbon fiber electric heating tube is contained in the air 18 in metal or non-metallic casing 17, and metal or non-metallic casing are firmly connected with water tank 8, guarantees that electrothermal tube and water separate completely; Heating wire and nonmetal tube wall spacing > 2mm simultaneously; Electrothermal tube 6 and sleeve pipe 17 spacing > 0.5mm, reach the requirement of reinforced insulation, realize water heater and connect without ground wire, become two electric appliances.
Beneficial effect of the present invention and novelty are:
1. water inlet tube of electric water heater road, is provided with the water flow switch 4 of decompression, within making the pressure in existing metal blowing water tank reduce 0.07-0.15Mpa by 0.6Mpa, can reduce water tank thickness, save material, can not leak by crackle meanwhile; Also can not explode;
2. this electric heater, the halogen generate heat light wave or carbon fiber electric heating tube are contained in the air in stainless steel sleeve pipe, realize water proof heating, are perfectly safe.
Accompanying drawing explanation
Fig. 1, Fig. 3 to Fig. 5 are the Water flow switch structure figure of band decompression;
Fig. 2 is microswitch schematic diagram;
Fig. 6 to Figure 10 is the external optical wave heating electric heater schematic diagram of the water flow switch that band decompression is housed;
Detailed description of the invention
Embodiment below in conjunction with accompanying drawing 1 to 10 is described, in accompanying drawing: the halide torch of shell 1, cold water inlet 2, hot water outlet pipe 3, water flow switch 4 with decompression, controller 5, optical wave heating or carbon fiber pipe electrothermal tube 6 (upper electrothermal tube 6-1, lower electrothermal tube 6-2), fixing point 7, water tank 8, water nozzle 9, thermometric or temperature limit switch mounting pipe 10, flange 11, relief valve 14, sewage draining exit 15, water flow through water-heating device 16, metal or non-metallic casing 17, air 18, water 19.
Fig. 1, Fig. 3 to Fig. 5 are the water flow switches 4 with decompression, are made up of A, B bis-functional parts:
Part A, in main body 4-1, the passage of water inlet and water outlet is not directly communicate, but separated by cover plate 4-2, when there being water flow, water can be forced promotion cover plate 4-2, simultaneously promotion seal 4-3 with impeller 4-4 and movable contact 4-9 contacted with stationary contact 4-8 or microswitch 4-7 is connected, circuit turn-on: when current are closed, water inlet is closed, and circuit also disconnects.
Part B, piston 4-12 small end has a cross through hole, and centre is also porose, during water inlet, water, by transverse holes, enters in water tank from piston 4-12 interstitial hole, during water inlet, not the entering, when the in-built full water of water tank or inflow are greater than water yield, in water tank during pressure increase of block water, piston 4-12, large end produces back pressure, and piston 4-12 is subjected to displacement, and turns down and even closes water inlet 4-14; When discharging water, water inlet repeats to open; Thus can pressure in self-regulating water tank, this function guarantees that pressure in water tank is within 0.15mpa.(rubber parts 4-15 porose in Fig. 5, dividing plate 4-16)
Fig. 6 to Figure 10 is the external optical wave heating electric heater structural representation that water flow switch is housed; Water tank water intake, by with the water flow switch 4 of decompression, is equipped with fast heating device 16 at the outlet pipeline of water tank 8, no matter pipe-line system pressure size, can water tank be made fast to fill water, and make it be limited in setting range.
In accompanying drawing, water tank adopts metal to be base material liner enamel or to manufacture with stainless steel, as Fig. 6 to Figure 10, if metal water tank (containing enamel and stainless steel water tank), pressure is limited in 0.2Mpa, this just thoroughly overcomes water tank makes water tank enamel split because expanding with heat and contract with cold, the problem of bead crack.
In accompanying drawing, electric heater has horizontal type structure, also has vertical structure, can be general, is that single water tank or many water tanks are all general.
In accompanying drawing, the water inlet pipe of water tank and outlet pipe are all the flexible nonmetallic tubings adopting length > 500mm, form physics water resistance, guarantee safety.
Described optical wave heating electrothermal tube 6, nonmetallic halogen or carbon fiber electric heating tube are contained in the air 18 of metal or non-metallic casing (17), and metal or non-metallic casing 17 are firmly connected with water tank 8, guarantee that optical wave heating electrothermal tube and water separate completely.
If by the water flow switch of band decompression, A and B is divided into two assemblies, is arranged in water tank, also within this patent protection; Arrow is water (flow) direction.