CN205315949U

CN205315949U - Direct -burried heat preservation reducing pipe

Info

Publication number: CN205315949U
Application number: CN201620015000.3U
Authority: CN
Inventors: 刘连平; 刘培刚
Original assignee: Hebei Juqing Pipeline Co Ltd
Current assignee: Hebei Juqing Pipeline Co Ltd
Priority date: 2016-01-08
Filing date: 2016-01-08
Publication date: 2016-06-15
Anticipated expiration: 2026-01-08

Abstract

The utility model relates to a direct -burried heat preservation reducing pipe, including steel pipe and sleeve pipe, outwards be equipped with thermoelectric net zone of heating between steel pipe and the sleeve pipe in proper order, the aluminium foil layer, the rigid polyurethane foam blanket is equipped with temperature sensor between electrical heating stratum reticulare and steel pipe, the external controlling means of temperature sensor, controlling means connects opening and closing of thermoelectric net zone of heating controlled heating function. The utility model discloses an advantage embodies: the temperature of insulating tube can be guaranteed through thermal electricity net zone of heating, the aluminium foil layer can be radiated the temperature of insulating tube, guarantees inside temperature to low temperature anti -radiation that can be external reduces external low temperature affected, reaches nearly 70% reflection effect, but temperature sensor real -time supervision temperature is passed through controlling means and is realized self -heating, has guaranteed the temperature of insulating tube.

Description

A kind of direct-burried insulation reducer pipe

Technical field

This utility model relates to transmission pipeline field, is specifically related to a kind of direct-burried insulation reducer pipe.

Background technology

Insulating tube is a kind of heat distribution pipeline device with good thermal insulation property, is mainly used in transmission high temperature air, steam, water, heat conduction wet goods fluid media (medium). Insulating tube is widely used, and has extensive application in industries such as chemical industry, petrochemical industry, heating power, solar thermal energies, and in the such as field such as deep-sea oil, solar energy thermal-power-generating, also outstanding aobvious key, produces a very large impact the Cost And Performance of whole system.

At present, main use insulation concentric reducer connects the insulating tube that aperture is different, but generally has the situation of heat loss owing to connecting defective tightness at insulation concentric reducer place.

Utility model content

The purpose of this utility model is for deficiency of the prior art, it is provided that a kind of high insulating effect also can monitor the direct-burried insulation reducer pipe that temperature heats automatically.

For achieving the above object, the utility model discloses following technical scheme:

A kind of direct-burried insulation reducer pipe, including steel pipe and sleeve pipe, successively to being externally provided with thermoelectricity net zone of heating between steel pipe and sleeve pipe, aluminium foil layer, hard polyurethane foams layer, between electrical heating stratum reticulare and steel pipe, it is provided with temperature sensor, temperature sensor external controller, controls device and connect the opening and closing of thermoelectricity net zone of heating control heating function.

Further, the density of described hard polyurethane foams layer is 60kg/m3-80kg/m3.

Further, described thermoelectricity net zone of heating and temperature sensor connect external power source each through the wire guide of the major part section tubular wall of insulation concentric reducer and realize electrified regulation and temperature sensing.

Further, described wire guide place is provided with sealing ring.

The disclosed a kind of direct-burried insulation reducer pipe of this utility model, has the advantages that

The temperature of insulating tube can be ensured by thermoelectricity net zone of heating; The temperature of insulating tube can be radiated by aluminium foil layer, it is ensured that internal temperature, and low temperature antiradiation that can be extraneous, reduces extraneous low temperature effect, reaches the reflecting effect of nearly 70%; Temperature sensor can be monitored temperature in real time and realize heating automatically by controlling device, it is ensured that the temperature of insulating tube.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model,

Fig. 2 is schematic cross-section of the present utility model,

Wherein:

1-wire guide, 2-steel pipe, 3-electric network zone of heating, 4-aluminium foil layer, 5-hard polyurethane foams, 6-sleeve pipe, 7-temperature sensor.

Detailed description of the invention

Also with reference to accompanying drawing, this utility model is further described below in conjunction with embodiment.

Refer to Fig. 1-Fig. 2.

A kind of direct-burried insulation reducer pipe, including steel pipe 2 and sleeve pipe 6, successively to being externally provided with thermoelectricity net zone of heating 3 between steel pipe 2 and sleeve pipe 6, aluminium foil layer 4, hard polyurethane foams layer 5, between electrical heating stratum reticulare 3 and steel pipe 2, it is provided with temperature sensor 7, temperature sensor 7 external controller, controls device connection thermoelectricity net zone of heating 3 and control the opening and closing of heating function.

In the present embodiment, the density of hard polyurethane foams layer 5 is 60kg/m3-80kg/m3.

In the present embodiment, described thermoelectricity net zone of heating 3 and temperature sensor 7 connect external power source each through the wire guide 1 of the major part section tubular wall of insulation concentric reducer and realize electrified regulation and temperature sensing.

In the present embodiment, for preventing heat to scatter and disappear along wire guide 1, described wire guide 1 place is provided with sealing ring.

The above is only preferred implementation of the present utility model; should be understood that; for those of ordinary skill in the art; without departing under premise of the present utility model; the some improvement that this utility model can also be made and supplementing; these improve and supplement, and also should be regarded as protection domain of the present utility model.

Claims

1. a direct-burried insulation reducer pipe, it is characterized in that, including steel pipe and sleeve pipe, successively to being externally provided with thermoelectricity net zone of heating between steel pipe and sleeve pipe, aluminium foil layer, hard polyurethane foams layer, between electrical heating stratum reticulare and steel pipe, it is provided with temperature sensor, temperature sensor external controller, controls device and connects the opening and closing of thermoelectricity net zone of heating control heating function.

2. a kind of direct-burried insulation reducer pipe according to claim 1, it is characterised in that the density of described hard polyurethane foams layer is 60kg/m3-80kg/m3.

3. a kind of direct-burried insulation reducer pipe according to claim 1, it is characterised in that described thermoelectricity net zone of heating and temperature sensor connect external power source each through the wire guide of the major part section tubular wall of insulation concentric reducer and realize electrified regulation and temperature sensing.

4. a kind of direct-burried insulation reducer pipe according to claim 3, it is characterised in that described wire guide place is provided with sealing ring.