CN2477870Y

CN2477870Y - Anti-fouling electrothermal pump

Info

Publication number: CN2477870Y
Application number: CN 01240917
Authority: CN
Inventors: 张歌今
Original assignee: QIAOPAI INDUSTRY Co Ltd JINZHOU
Current assignee: QIAOPAI INDUSTRY Co Ltd JINZHOU
Priority date: 2001-03-27
Filing date: 2001-03-27
Publication date: 2002-02-20
Anticipated expiration: 2011-03-27

Abstract

The utility model discloses a scaling-resistant electric heating pump comprising a base. The base is provided with an electric motor, the electric motor is connected with the pump shaft, the pump shaft is mounted in the pump shaft bearing bracket, the pump shaft bearing bracket is equipped with a pump shell, the pump shaft is also provided with a vane wheel, and the vane wheel is mounted in the pump shell. The utility model is characterized in that the vane wheel consists of an insulating internal cover and an insulating external cover; a plurality of blades are arranged between the insulating internal cover and the insulating external cover, and used as the heating electrode; the blades are respectively connected with a three-phase or single-phase power line; the pump shaft is a hollow type, and the power line run through the pump shaft and is connected with a conducting slip-ring; the conducting slip-ring is mounted on the pump shaft via an insulation covering; and the blades of the vane wheel are used as the heating electrode to heat the medium transmitted by the pump.

Description

The good antiscale property electric heating pump

The utility model belongs to a kind of Electric heating appliance, the good antiscale property electric heating pump that particularly a kind of impeller with water pump heats as heating electrode, to the medium of carrying.

In the prior art, very extensive with the heater and the water heater application of the direct heat medium of electrode, the specification of product is of a great variety, but its basic structure is similar, all is pair of electrodes is installed in container, directly medium is heated by electrode.The medium of this heater heats mainly is a water, the subject matter that it exists is: 1, directly contact with water owing to electrode, in the process of heating, calcium ions and magnesium ions in the water can form incrustation scale and attached to the surface of electrode, along with the passing of heating time, the fouling meeting on the electrode surface is more and more, and this not only can make the efficiency of heating surface reduce, when fouling is serious, heater even cisco unity malfunction.2, heated medium can only slowly move under the effect of temperature contrast, i.e. the transmission of heat is by self conduction, and therefore, heat is transmitted slowly, the non-uniform temperature in the territory.When 3, the operating voltage between the electrode was high, electrode can not be installed too closely, influences heating power and efficient.

Water pump is a kind of device of carrying liquid medium, and it mainly is made up of base, motor, pump shaft, impeller, pump case and pump shaft supporting base etc.Base wherein, pump shaft supporting base and pump case are many to be made of metallic material.Be connected with coupling or belt drive unit between motor and the pump shaft.

The purpose of this utility model is to overcome the deficiency that above-mentioned existing heating technology exists, and on the basis of existing water pump, it is improved, and a kind of automated cleaning electrode, efficiency of heating surface height, safe and reliable good antiscale property electric heating pump are provided.

The utility model is achieved in that

It has a base, motor is housed on base, motor is connected with pump shaft, pump shaft is installed in the pump shaft supporting base, on the pump shaft supporting base, pump case is housed, impeller is housed on pump shaft, impeller is installed in the pump case, its special way is, described impeller is made up of insulation inner cap and insulation enclosing cover, between insulation inner cap and insulation enclosing cover several blades as heating electrode is housed, and is connected to three-phase or single phase poaer supply line on the blade respectively, described pump shaft is a hollow shaft, power line passes through from pump shaft, and joins with conducting slip ring respectively, between conducting slip ring and pump shaft insulating bush is housed, utilize impeller blade as heating electrode, to the medium heating of carrying in the pump.

Advantage of the present utility model is:

1, with the blade of impeller as heating electrode, in fed sheet of a media, it is heated, and the friction of blade and current keeps clean when utilizing wheel rotation, simultaneously, under the souring of current, the electrode surface non flouling behaviour, and constantly be cleaned, solved the problem of electrode fouling, make electrode remain good electrical conductivity, the specific conductance of electrode can not reduce, thereby makes electric heating pump keep uniform heats.

2, in electric heating pump when running,, water constantly flows, and the heat of acquisition constantly is pulled away, and has accelerated hot transmission, has improved the efficiency of heating surface, and is big in heat demand, when consumed power is big, can adopt three heat phase, helps each alternate maintenance balance of electrical network.

3, the thickness that is heated water layer is the gap between the impeller blade, because water layer is thinner, the resistance of water is little, so, can high-powerly import.

4, pump case, the equal connecting to neutral of base, and, pump the inlet with the pipeline joint insulating part is housed, therefore, not entail dangers to operator's personal safety in use.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model impeller;

Fig. 3 is the A-A sectional view of Fig. 2.

Provide embodiment of the present utility model below in conjunction with accompanying drawing:

As shown in drawings, the utility model has a base 10, and base 10 is an ironcasting, has enough strength and stiffness; Motor 12 is housed on base 10, and motor 12 is connected with pump shaft 7, and insulating between described pump shaft 7 and the motor 12 is connected, and promptly by insulating coupling 11 both is linked together, and guarantees motor 12 and pump shaft 7 mutually insulateds; Also can adopt belt to be connected between motor 12 and the pump shaft 7, can make motor 12 and pump shaft 7 insulation equally; Pump shaft 7 in pump shaft supporting base 5, is equipped with Sealing 4 by Bearing Installation between pump shaft supporting base 5 and pump shaft 7, prevent to leak between the two; Described pump shaft supporting base 5 is fixed on the base 10 by support 6, between support 6 and base 10 felt pad 13 is housed, and makes to keep insulation between base 10 and the pump shaft supporting base 5, guarantees safe in utilization; Pump case 1 is housed on pump shaft supporting base 5, between pump case 1 and base 10, felt pad 14 is housed, guarantee safe in utilization; On pump shaft 7 impeller is housed, impeller is installed in the pump case 1; Described impeller is made up of insulation inner cap 3 and insulation enclosing cover 2, between insulation inner cap 3 and insulation enclosing cover 2, six blades 15 as heating electrode are housed, the quantity of blade 15 is not limited to six, also can be nine, 12 or more a plurality of, be bolted together between described blade 15 and insulation inner cap 3 and the insulation enclosing cover 2, constitute an integral body, insulation inner cap 3 is fixed on the pump shaft 7, and whole impeller can be in company with pump shaft 7 rotations; On blade 15, be connected to three-phase power line respectively, make each alternate maintenance balance of electrical network, also can be mutually on blade 15 power supply phase line and zero line indirectly, use as single-phase heating equipment; Described pump shaft 7 is a hollow shaft, and power line passes through from pump shaft 7, and joins with conducting slip ring 9 respectively, and conducting slip ring 9 joins by brush and power supply, and described conducting slip ring 9 is installed on the pump shaft 7 by insulating bush 8, with pump shaft 7 insulation.

During use, the water outlet of pump case 1 and water inlet all are equipped with insulation pipe fitting and heating, heat supplying pipeline keeps insulating, and on parts such as pump case 1, motor 12, base 10 ground wire, guarantee the safe in utilization of whole system.

Claims

1, a kind of good antiscale property electric heating pump that fed sheet of a media is heated, it has a base, motor is housed on base, motor is connected with pump shaft, pump shaft is installed in the pump shaft supporting base, on the pump shaft supporting base pump case is housed, impeller is housed on pump shaft, impeller is installed in the pump case, it is characterized in that, described impeller is made up of insulation inner cap and insulation enclosing cover, between insulation inner cap and insulation enclosing cover several blades as heating electrode is housed, and is connected to three-phase or single phase poaer supply line on the blade respectively, described pump shaft is a hollow shaft, power line passes through from pump shaft, and joins with conducting slip ring respectively, and conducting slip ring is installed on the pump shaft by insulating bush.