WO2016033947A1

WO2016033947A1 - High-voltage resistance heating oil furnace

Info

Publication number: WO2016033947A1
Application number: PCT/CN2015/072856
Authority: WO
Inventors: 朱建新
Original assignee: 朱建新
Priority date: 2014-09-01
Filing date: 2015-02-12
Publication date: 2016-03-10
Also published as: CN104154518A; CN104154518B

Abstract

A high-voltage resistance heating oil furnace, comprising a hot oil isolating layer (1), a heat-insulating casing, a resistance heating component (18), an interface flange group, a power source accessing component, a heat absorption pipe set (6), a communication water pipe (13) and a steam generation box; the heat absorption pipe set (6) consists of a plurality of vertically arranged layered heat absorption pipes immersed in insulating conduction oil; the upper end port of the heat absorption pipe set communicates with the steam generation box, and the lower end port of the heat absorption pipe set communicates with an annular water pipe; low-temperature water is delivered to the heat absorption pipe set (6) via the communication water pipe (13); the steam generation box is provided at the upper end port of a cylindrical tubular body; an upper spherical metal head (9) of the steam generation box is provided with a flange (3) interface for outputting steam, and a middle spherical metal head (15) is provided with a circulating water flange (5) interface; and the power inlet end of the high-voltage resistance heating oil furnace directly accesses a power grid via a high-voltage switch system, such that the working voltage of the high-voltage resistance heating oil furnace is equal to the voltage of the accessed power grid.

Description

High voltage resistance heating oil furnace

Technical field

The invention relates to a high voltage resistance heating oil furnace, in particular to a resistance heating oil furnace with an operating voltage level of 5 kV or more, which is assembled by a heat absorbing tube which is immersed in an upper port of an insulating heat transfer oil and connected to a round cake shaped steam box. Heat; the resistance heating component directly connected to the power grid through the high-voltage switch system is depressurized to 0.4kV without the power transformer, so that the high-voltage resistance heating furnace completes the conversion of electric energy to steam energy.

Background technique

At present, high-voltage and high-power resistance heating oil furnace products are generally applied to hot water output users, and their equipment structure is not suitable for steam users. Therefore, it is necessary to develop a new high-power high-voltage resistance heating oil furnace to meet the requirements of users for using steam. .

Summary of the invention

The present invention provides a high-voltage resistance heating oil furnace with an operating voltage level of 5 kV or more in view of the above problems in the prior art, and the heat absorption tube group is composed of a plurality of heat absorbing tubes vertically immersed in the insulating heat conduction oil. The upper port of the heat absorbing tube is respectively connected to the steam generating box, and the heat absorbing tube absorbs the heat of the heat conducting oil to heat the water in the tube, and obtains saturated steam in the steam producing box to realize conversion of electric energy to steam energy; high voltage resistance heating The power supply terminal of the oil furnace adopts different connection modes of series and parallel to realize single or multiple combination use.

The technical solution of the present invention is as follows: a high voltage resistance heating oil furnace comprising a hot oil isolation layer, a housing with heat preservation, a resistance heating component, an interface flange group, and a power supply access component, characterized in that: The heat absorption tube group, the communication water tube and the production steam box; the heat absorption tube group is composed of a plurality of heat absorbing tubes vertically immersed in the insulating heat conduction oil, and the upper port of the heat absorption tube group is connected with the production steam box, and sucks The lower port of the heat pipe group is connected with the annular water pipe; the low temperature water is transported to the heat absorbing pipe group through the communication water pipe; the steam producing box is a pressure bearing cavity composed of a spherical metal head, a transition section and an intermediate spherical metal head at the upper end, and is arranged. In the upper port of the cylindrical tubular body, the spherical metal head at the upper end of the steam box is provided with a flange interface for steam output, the middle spherical metal head is provided with a circulating water flange interface; the power supply of the high voltage resistance heating oil furnace is introduced Directly through the high voltage switch system Access to the power grid, so that the high voltage resistance heating furnace operating voltage is equal to the connected power grid voltage.

The production steam box is in the shape of a round cake. In order to make the steam preparation process smooth and improve the steam production capacity of the equipment, it is necessary to adjust the height of the transition section or change the diameter of the intermediate spherical metal head to increase the volume of the production tank, or change the production. a position where the steam box is connected to the upper port of the cylindrical tubular body, or a heat blocking layer is disposed on the outer surface of the connecting pipe between the intermediate spherical metal head and the circulating water flange interface and the outer surface of the intermediate spherical metal head contacting the heat conducting oil .

The communication water pipe is connected to the cold water input flange, and the low temperature water is transported to the passage of the heat absorption pipe group in the casing.

The power input component is composed of an insulating sleeve and an inlet electrode which are mounted on the lower spherical head housing and have a working voltage level greater than 5 kV.

The heat-insulating housing is made of a cylindrical metal structure with spherical heads at both ends and then covered with a heat insulating material.

The insulating heat transfer oil is composed of a liquid which satisfies the insulation requirement of the rated working voltage applied by the electric resistance heater and can stably transfer the heat energy generated on the electric resistance heating member to the heat absorbing tube group.

The electric resistance heating component is a lower end connecting an insulating sleeve as a wiring lead end, and is immersed in the insulating heat conductive medium by a single or multi-stranded metal wire capable of stably conducting heat in the insulating and heat conducting medium, and supporting and fixing the conductive heat. The metal wire is composed of a structural member having a resistance to a rated power frequency voltage between the unit casings.

The hot oil separating layer is a cylindrical tubular body which is hollowed up and down, and is disposed between the electric resistance heating member and the heat absorbing tube group, and is made of metal and high temperature resistant polymer material.

The interface flange group is a functional interface installed on a heat-insulating housing to meet working needs, including a measuring probe flange, an oil-filling flange, an oil-filled flange, a drain flange, a steam output flange, Circulating water flange and water input flange.

The advantages of the present invention are as follows: The resistance heating oil furnace of the present invention having an operating voltage level of 5 kV or more is an ideal equipment for hotels, hospitals, and enterprises to replace steam from a coal-fired steam boiler, and can reduce the pollution of coal by air.

DRAWINGS

1 is a schematic view showing the structure of a high voltage resistance heating oil furnace of the present invention.

In the figure, 1, hot oil insulation layer, 2, oil spill flange, 3, steam output flange, 4, measuring probe flange, 5, circulating water flange, 6, hot suction tube set, 7, lower end spherical head 8, oil drain flange, 9, upper spherical head, 10, cold water input flange, 11, oil flange, 12, housing flange, 13, connecting water pipe, 14, cylindrical tubular body, 15, Intermediate spherical head, 16, insulating sleeve, 17, lead electrode, 18, resistance heating parts, 19, transition section.

detailed description

The invention is described in detail below with reference to the accompanying drawings and embodiments.

Embodiment 1 As shown in FIG. 1, the high-voltage resistance heating oil furnace is composed of a thermal oil isolation layer 1, a housing with heat preservation, a resistance heating member 18, an interface flange group, a hot suction tube group 6, a power supply access component, and a communication. The water pipe 13 and the middle spherical head 15 are composed; the heat-insulating casing is composed of a cylindrical tubular body 14, a lower spherical head 7 and an upper spherical head 9; the interface flange group is composed of a steam output flange 3, a measuring probe flange 4. Circulating water flange 5, drain flange 8, oil filler flange 11, housing flange 12, cold water input flange 10; thermal oil isolation layer is disposed between the heat absorption tube group 6 and the resistance heating member 18. 1; the housing with heat preservation is made of a metal plate into a cylindrical tubular body 14, the lower end is fitted with a lower end spherical head 7 of the same material, and the upper end ball is mounted with an upper end spherical head 9 of the same material. The high voltage resistance heating the power supply introduction end of the oil furnace, without the power transformer, the high voltage of the power network is stepped down to 0.4kV, but directly connected to the power network through the high voltage switch system, so that the high voltage resistance heating oil furnace working voltage is equal to the connected Power grid voltage. The insulating heat-conducting oil is composed of a liquid which satisfies the insulation requirement of the rated working voltage applied by the resistance heating member, and can stably transfer the heat energy generated on the resistance heating member to the heat absorbing member. Such as vegetable oil, mineral oil, synthetic oil, sensitizing insulating liquid, etc.; the heat absorbing tube group 6 is composed of a plurality of immersed insulating heat conduction oils which are respectively connected to the round cake-shaped production steam box, and are vertically arranged. The materials used are metal plates, metal coils, polymer coils, etc.; the interface flange group is a functional interface installed on the casing to meet the working needs, including the measuring probe flange 4, the head hole flange 5, the oil spill method Lan 7, drain flange 13, hot water output flange 9 and cold water input flange 10, through the connection of each functional interface flange, the high voltage resistance heating oil furnace with voltage level of 5kv ~ 220kv, stable operation.

The high-voltage resistance heating oil furnace of the invention firstly connects the flange group to make the resistance heating oil furnace with the voltage level of 5kv~220kv have the working state; the resistance heating component 18 installed in the center of the heat-conducting oil housing is heated to heat the heat-conducting oil The high-temperature heat-conducting oil rises along the hot oil isolation layer 1 to the port and then gradually cools down from the upper to the lower side along the inner wall of the casing and the hot oil insulation layer 1, and is disposed on the inner wall of the casing and the hot oil. The outer wall of the heat absorbing tube group 6 between the isolating layers 1 is in contact with the high-temperature heat-conducting oil, so that the circulating water in the heat-absorbing tube group 6 is gradually heated from bottom to top to the round cake-shaped steam producing box to generate a saturated steam output.

Claims

The utility model relates to a high voltage resistance heating oil furnace, which comprises a thermal oil insulation layer, a heat-insulating casing, a resistance heating component, an interface flange group and a power supply access component, characterized in that: the heat absorption pipe group and the communication water pipe are further included The heat-generating tube set is composed of a plurality of heat-absorbing tubes vertically immersed in the insulating heat-conducting oil layer, and the upper port of the heat-absorbing tube group is connected with the steam producing box, and the lower port of the heat-absorbing tube group is The annular water pipe is connected; the low temperature water is transported to the heat absorbing pipe group through the communication water pipe; the steam producing box is a pressure bearing cavity composed of a spherical metal head, a transition section and an intermediate spherical metal head at the upper end, and is arranged in the cylindrical tubular body. On the upper port, the spherical metal head on the upper end of the steam box is provided with a flange interface for steam output, and the middle spherical metal head is provided with a circulating water flange interface; the power introduction end of the high voltage resistance heating oil furnace is directly connected through the high voltage switch system Into the power grid, so that the high voltage resistance heating furnace operating voltage is equal to the connected power grid voltage.
The high-voltage resistance heating oil furnace according to claim 1, wherein the steam producing box is in the shape of a round cake, and the height of the transition section needs to be adjusted in order to make the steam preparation process smooth and improve the steam production capacity of the equipment. Changing the diameter of the intermediate spherical metal head to increase the volume of the production tank, or changing the position of the connection between the production tank and the cylindrical tubular body, or the connection between the intermediate spherical metal head and the circulating water flange interface The outer surface and the intermediate spherical metal head are in contact with the outer surface of the heat transfer oil to provide a heat resistant layer.
The high voltage resistance heating oil furnace according to claim 1, wherein said communication water pipe is a passage communicating with the cold water input flange to deliver low temperature water to the heat absorbing tube group in the casing.