CN205137944U - Central authorities' water heater with pressure adjustment function and heating of non -metal casing electrothermal tube - Google Patents

Abstract

Central authorities' water heater with pressure adjustment function and heating of non -metal casing electrothermal tube, water tank (8) are by non -metallic material blowing or mould plastics or the rotational moulding manufacturing, or make with metal material to pressure regulator (12) are equipped with on the water intake pipe of water tank, pressure regulator comprises casing (12 -1), piston (12 -2), lid (12 -3), rubber spare (12 -4), piston (12 -2) can produce the displacement along with the pressure variation in the water tank in casing (12 -1), close for a short time or even close the water inlet, electric heater unit (6) shell is the non -metallic material preparation, its built -in electrothermal tube, the electrothermal tube is carbon fiber tube or halogen tube or non -metal casing electrothermal tube or metal dry combustion method pipe, perhaps directly adorn the heating wire in non -metal casing, the heating wire is dry combustion method in the air in non -metal casing.

Description

There is the central heater that pressure adjusting function and non-metal shell electrothermal tube heat

Technical field

The present invention relates to the central heater that there is pressure adjusting function and non-metal shell electrothermal tube and heat.

Background technology

Existing central heater is the equipment concentrated whole family or unit supplying hot water, at the inlet pipeline of water tank, is directly connected with water source, and water is sent into water tank, be called inlet pipeline, this pipeline does not arrange miscellaneous part, water tank take metal as the liner enamel cistern of base material, 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, leak and explode, the life-span is short.

Summary of the invention

The present invention improves existing central heater water tank.Technical measures of the present invention are: water tank has pressure adjusting function, mode of heating adopts non-metal shell electrothermal tube, and central heater is made up of shell 1, water inlet pipe 2, outlet pipe 3, electric heater unit 6, water tank 8, water nozzle 9, flange 11, pressure regulator 12, relief valve 14; The described central heater that there is pressure adjusting function and non-metal shell electrothermal tube and heat, water tank 8 has various ways, and on the inlet pipeline 2 of water tank setting pressure adjuster 12, the pressure in water tank is changed all the time between 0.05Mpa to 0.15Mpa.

Electric heater unit 6, shell is that nonmetallic materials make, version, is that through type and two ends are externally opened wide or one end is that the blind hole other end opens wide; Its in-built electrothermal tube, described electrothermal tube is carbon fiber pipe or halide torch or non-metal shell electrothermal tube or metal dry combustion method electrothermal tube; Or directly fill heating wire in it, and heating wire is in the air in non-metal shell, dry combustion method; No matter be the in-built electrothermal tube of non-metal shell or dress heating wire, two layers can be made, realize double insulation.

Water tank primary structure has:

One, water tank adopt metal material make, comprise water tank or the stainless steel water tank of metal base liner enamel, and on water tank water intake pipeline setting pressure adjuster 12.

Two, water tank adopts nonmetallic materials blowing to make, namely multilayer blow moulding manufacture technics inner bag is adopted, be made up of one deck or more different materials when described multilayer blow moulding refers to wall of inner container blowing, be send into the different raw material of several performance, disposal molding with multiple hopper simultaneously; And on water tank water intake pipeline setting pressure adjuster 12.

Three, water tank adopts nonmetallic materials injection moulding to make, and be separated with shell by tank body, water tank is injection molded into single layer structure; Water tank is made up of the first product 8-1 and the second product 8-2 two nonsymmetrical component; 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, and between, both ends of the surface binding site, installing seal 8-3, is double sealing structure.

Four, water tank adopts rotational moulding manufacture, injecting in horizontal tool by powdery or plastic paste raw material, by rotating mold heated and longitudinal and horizontal rolling, making material borrow self gravitation effect and centrifugal action, evenly be covered with inner chamber and melting, after cooling, the demoulding obtains hollow product;

Five, the method manufacture of welding or splicing after water tank employing 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 porose; Shell one end has inlet opening, one end of lid have apopore; When discharging water, open water nozzle 9, water enters from the hole of piston small end both sides, by the hole of piston centre, enter water tank 8, when the in-built full water of water tank from the apopore of lid, pressure is produced at the large end of piston, piston is moved, and stop water to enter, in the pressure limit making the pressure in water tank be limited to 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 large, such as, uses booster pump to supply water, enters the pressure of water tank, also in the scope of setting; If system pressure is very low, low-pressure water but can not be stoped to enter water tank; The feature of this structure is that piston 12-2 along with the pressure change in water tank, and can produce displacement in housing 12-1, turns down and even closes water inlet; But automatically open when discharging water.

Beneficial effect of the present invention and novelty are:

1. central heater water tank is built with pressure regulator 12, within making the Pressure Drop in existing metal water tank be low to moderate 0.05-0.15Mpa, can reduce water tank thickness, saves material, can not leak by crackle meanwhile; Also can not explode;

2. particularly nonmetal water tank, Stress control is within 0.05 to 0.15Mpa, 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.

3. adopt non-metal shell electric heater unit 6-1 to realize water proof heating, be perfectly safe.

Accompanying drawing explanation

Fig. 1 to Figure 10 is the structure chart of pressure regulator;

Figure 11 to Figure 14 has the central heater schematic diagram that pressure adjusting function and non-metal shell electrothermal tube heat;

Detailed description of the invention

In accompanying drawing: shell 1, cold water inlet 2, hot water outlet pipe 3, controller 5, electric heater unit 6, sealing and fixing point 7, water tank 8, water nozzle 9, thermometric or temperature limit switch mounting pipe 10, flange 11, pressure regulator 12, relief valve 14, sewage draining exit 15, metal or non-metallic casing 17;

Fig. 1 to Figure 10 is pressure regulator, similar, and function is close; Just connected mode is different; In some figure, add spring 12-5, the pressure in water tank can arrange slightly higher, and be applicable to the water tank that various material makes, piston-shaped difference in figure, function is identical.

Figure 11 to Figure 14 has the central heater schematic diagram that pressure adjusting function and non-metal shell electrothermal tube heat; Water tank water intake is by pressure regulator 12, and no matter pipe-line system pressure size, can make water tank fill water fast, and make it be limited in setting range.

In accompanying drawing, water tank can make by techniques such as nonmetal blowing, injection moulding, rotational moulding, if nonmetal water tank, pressure is limited to about 0.05-0.15Mpa, because nonmetal water tank has dilatancy hot, can absorb heat expansion pressure, and back pressure is produced to piston 12-2, and the Shi Zehui that discharges water allows the pressure of pipe-line system pass through; Water tank also can adopt metal to be base material liner enamel or manufacture with stainless steel, if metal water tank (containing enamel and stainless steel water tank), pressure is limited 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.

In described central heater accompanying drawing, water tank is vertical, horizontal also passable.

Claims (4)

1. there is the central heater that pressure adjusting function and non-metal shell electrothermal tube heat, it is characterized in that:

Water tank (8) adopts metal material to make;

Water tank water intake pipeline is provided with pressure regulator (12), and described pressure regulator (12) 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);

The shell of electric heater unit (6) is that nonmetallic materials make, its in-built electrothermal tube, and described electrothermal tube is carbon fiber pipe or halide torch or non-metal shell electrothermal tube or metal dry combustion method electrothermal tube; Or directly fill heating wire in non-metal shell, described heating wire is in the air in non-metal shell, dry combustion method.

2. there is the central heater that pressure adjusting function and non-metal shell electrothermal tube heat, it is characterized in that:

Water tank (8) adopts nonmetallic materials blowing to make, and namely adopts multilayer blow moulding manufacture technics, is made up when described multilayer blow moulding refers to wall of inner container blowing of one deck or more different materials;

Setting pressure adjuster (12) on water tank (8) inlet pipeline, described pressure regulator (12) 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);

The shell of electric heater unit (6) is that nonmetallic materials make, its in-built electrothermal tube, and described electrothermal tube is carbon fiber pipe or halide torch or non-metal shell electrothermal tube or metal dry combustion method electrothermal tube; Or directly fill heating wire in non-metal shell, described heating wire is in the air in non-metal shell, dry combustion method.

3. there is the central heater that pressure adjusting function and non-metal shell electrothermal tube heat, it is characterized in that:

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 the second product (8-2) two nonsymmetrical component; 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, and between and both ends of the surface binding site, respectively installing seal (8-3), is double sealing structure;

The inlet pipeline of water tank (8) is provided with pressure regulator (12), and described pressure regulator (12) 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);

The shell of electric heater unit (6) is that nonmetallic materials make, its in-built electrothermal tube, and described electrothermal tube is carbon fiber pipe or halide torch or non-metal shell electrothermal tube or metal dry combustion method electrothermal tube; Or directly fill heating wire in non-metal shell, described heating wire is in the air in non-metal shell, dry combustion method.

4. there is the central heater that pressure adjusting function and non-metal shell electrothermal tube heat, it is characterized in that:

Water tank (8) adopts rotational molding technique or extrusion molding to add welding manufacture technics;

Water tank water intake pipeline is provided with pressure regulator (12), and described pressure regulator (12) 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);

The shell of electric heater unit (6) is that nonmetallic materials make, its in-built electrothermal tube, and described electrothermal tube is carbon fiber pipe or halide torch or non-metal shell electrothermal tube or metal dry combustion method electrothermal tube; Or directly fill heating wire in non-metal shell, described heating wire is in the air in non-metal shell, dry combustion method.