CN105716283A

CN105716283A - Central water heater with pressure regulation function

Info

Publication number: CN105716283A
Application number: CN201410755580.5A
Authority: CN
Inventors: 刘运柳; 岑自健; 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 provides a central water heater with a pressure regulation function. A water tank 8 is made of non-metallic materials through blow molding or injection molding or rotational molding or is made of metallic materials, and a pressure regulator 12 is installed on a water inlet pipeline of the water tank; the pressure regulator is composed of a shell 12-1, a piston 12-2, a cover 12-3 and a rubber piece 12-4; and the piston 12-2 can move in the shell 12-1 along with the pressure change in the water tank, and the opening degree of a water inlet is decreased or even the water inlet is closed.

Description

There is the central heater of pressure adjusting function

Technical field

The present invention relates to the central heater with pressure adjusting function.

Background technology

Existing central heater is to concentrate the equipment to whole family or unit supplying hot water, at the inlet pipeline of water tank, is directly connected with water source, and feed the water into water tank, it is called inlet pipeline, this pipeline is not provided with miscellaneous part, the liner enamel cistern that water tank is is base material with metal, also has stainless steel water tank, rated pressure is 0.6mpa, and test press-in is 1.2mpa, and this water tank there will be crackle, leaking and explode, the life-span is short.

Summary of the invention

Existing central heater water tank is improved by the present invention, for having the central heater water tank of pressure adjusting function after improvement, it is made up of shell 1, water inlet pipe 2, outlet pipe 3, electrothermal tube 6, water tank 8, water nozzle 9, flange 11, pressure regulator 12, relief valve 14；The described central heater with pressure adjusting function, water tank 8 has various ways, and is provided with pressure regulator 12 on the inlet pipeline 2 of water tank, when pipe-line system pressure is little, will not stop the smooth and easy entrance water tank of water；When system pressure is significantly high or water filled by water tank, producing back pressure, stop the entrance of water, make the pressure in water tank along with water inlet or water outlet (put hot water use) pressure difference, the pressure in water tank changes all the time between 0.05Mpa to 0.15Mpa；Low bearing type central water heater during this present invention is customized for, water tank primary structure has:

One, water tank adopts metal material to make, and including enamel cistern or stainless steel water tank, and installs pressure regulator 12 on water tank water intake pipeline.

Two, water tank adopts nonmetallic materials blowing to make, namely multilayer blow moulding technique is adopted to manufacture inner bag, it is made up of one layer or above different materials when described multilayer blow moulding refers to wall of inner container blowing, is be simultaneously fed into the raw material that several performance is different, disposal molding with multiple hoppers；And pressure regulator 12 is installed on water tank water intake pipeline.

Three, water tank adopts nonmetallic materials injection moulding to make, and is separated with shell by tank body, and water tank is injection molded into single layer structure；Water tank is made up of the first product 8-1 and two nonsymmetrical component of the second product 8-2；First product and the second product open at one end, the other end is closed, and on the end face of unlimited one end, has some attachment screw installing holes, between, and both ends of the surface binding site, sealing member 8-3 is installed, for double sealing structure.

Four, water tank adopts rotational moulding manufacture, inject in horizontal tool by powdery or plastic paste raw material, by mould heating and longitudinal and horizontal rolling are rotated, make material borrow self gravitation effect and centrifugal action, uniformly being covered with inner chamber and melt, after cooling, the demoulding obtains hollow product；

Five, the method manufacture that water tank welds or glueds joint after adopting extrusion molding, namely first extrudes cylinder, then adds Di Hegai at two ends, and carry out glueing joint and welding；

Above-mentioned three to five, at inlet pipeline in water tank, pressure regulator 12 is installed.

Described pressure regulator 12 is piston cylinder operator, is made up of housing 12-1, piston 12-2, lid 12-3, rubber parts 12-4, spring 12-5；Piston centre and both sides, bottom are porose；Shell one end has inlet opening, one end of lid have apopore；When discharging water, opening water nozzle 9, water enters from the hole of piston small end both sides, by the hole of piston centre, enters water tank 8 from the apopore of lid, when the built-in full water of water tank；Big end at piston produces pressure, makes piston move, and stops water to enter, make the pressure limit in water tank fix in the pressure limit of setting (as: metal water tank is at 0.1-0.2Mpa；Nonmetal water tank is at 0.03-0.1Mpa)；This structure can directly be connected with water source, when pipe-line system pressure is very big, for instance uses booster pump to supply water, enters the pressure of water tank, also in the scope set；If system pressure is very low, enter water tank without stoping low setting-out；This structure is characterised by that piston 12-2 can change along with the pressure in water tank, and produces displacement in housing 12-1, turns down and is even switched off water inlet；But automatically open up when discharging water.

Beneficial effects of the present invention and novelty be:

1. central heater water tank is built with pressure regulator 12, within making the pressure in existing metal water tank be reduced to 0.1-0.2Mpa by 0.6Mpa, can reduce water tank thickness, save material, will not leak by crackle meanwhile；Without blast；

2. particularly nonmetal water tank, Stress control, within 0.03 to 0.1Mpa, thus water tank 8 can make by welding procedure after nonmetallic materials blowing or injection moulding or rotational moulding or extrusion molding, thoroughly changes the manufacturing process of Water tank for electrical water heater.

Accompanying drawing explanation

Fig. 1 to Fig. 6 is the structure chart of pressure regulator；

Fig. 7, Fig. 8 are equipped with the central heater water tank schematic diagram of pressure regulator；

Detailed description of the invention

Embodiment below in conjunction with accompanying drawing 1 to 8 illustrates, in accompanying drawing: shell 1, cold water inlet 2, hot water outlet pipe 3, controller 5, halide torch or carbon fiber pipe electrothermal tube or metal electric heat pipe 6 (upper electrothermal tube 6-1, lower electrothermal tube 6-2), sealing and fixing point 7, water tank 8, water nozzle 9, thermometric or temperature limit switch install pipe 10, flange 11, pressure regulator 12, relief valve 14, sewage draining exit 5.

Fig. 1 to Fig. 6 is pressure regulator, and structure is similar, and function is close；Simply connected mode is different；In Fig. 3 to Fig. 6, adding spring 12-5, the pressure in water tank can arrange more slightly higher, it is adaptable to the water tank that various materials make, the piston-shaped difference of Fig. 5, Fig. 6, function is identical.

Fig. 7, Fig. 8 are equipped with the central heater cisten mechanism schematic diagram of pressure regulator 12；Water tank water intake passes through pressure regulator 12, no matter pipe-line system pressure size, can quickly make water tank fill water, and make it be limited in set point.

In accompanying drawing, water tank can make by techniques such as nonmetal blowing, injection moulding, rotational moulding, if nonmetal water tank, pressure limit fixes on about 0.05-0.1Mpa, owing to nonmetal water tank has dilatancy hot, flatulence of heat type pressure can be absorbed, and piston 12-2 is produced back pressure, and the Shi Zehui that discharges water allows the pressure of pipe-line system pass through；Water tank may be used without metal and is base material liner enamel or manufactures with rustless steel, if metal water tank (containing enamel and stainless steel water tank), pressure limit fixes in 0.2Mpa, and this just thoroughly overcomes water tank makes water tank enamel split because expanding with heat and contract with cold, the problem of bead crack.

Claims

1. there is the central heater of pressure adjusting function, it is characterised in that: 1. water tank (8) adopts metal material to make；Pressure regulator (12) is 2. installed on water tank water intake pipeline.

2. there is the central heater of pressure adjusting function, it is characterised in that: 1. water tank (8) adopts nonmetallic materials blowing to make, and namely adopts multilayer blow moulding technique to manufacture, is made up of one layer or above different materials when described multilayer blow moulding refers to wall of inner container blowing；Pressure regulator (12) is 2. installed on water tank (8) inlet pipeline.

3. there is the central heater of pressure adjusting function, it is characterized in that: 1. water tank (8) adopts nonmetallic materials injection moulding to make, tank body is separated with shell, water tank is injection molded into single layer structure, and water tank (8) is made up of the first product (8-1) and two nonsymmetrical component of the second product (8-2)；First product and the second product open at one end, the other end is closed, and on the end face of unlimited one end, has some attachment screw installing holes, between and both ends of the surface binding site, respectively installs sealing member (8-3), for double sealing structure；Pressure regulator (12) is 2. installed on the inlet pipeline of water tank (8).

4. there is the central heater of pressure adjusting function, its feature: 1. water tank (8) adopts rotational molding technique or extrusion molding to add welding procedure manufacture；Pressure regulator (12) is 2. installed on water tank water intake pipeline.

5. according to claim 1,2,3 or 4, the described central electric water heater with pressure adjusting function and solar energy, air energy water heater water tank, it is characterised in that: pressure regulator is made up of housing (12-1), piston (12-2), lid (12-3), rubber parts (12-4)；Piston (12-2) along with the change of the pressure in water tank, can produce displacement in housing (12-1).