CN204824714U

CN204824714U - Coke oven crude gas waste heat recovery heat transfer device

Info

Publication number: CN204824714U
Application number: CN201520484828.9U
Authority: CN
Inventors: 武良辰; 武兆乾
Original assignee: NANJING HUYOU METALLURGY MACHINERY MANUFACTURING CO LTD
Current assignee: NANJING HUYOU METALLURGY MACHINERY MANUFACTURING CO LTD
Priority date: 2015-07-07
Filing date: 2015-07-07
Publication date: 2015-12-02
Anticipated expiration: 2025-07-07

Abstract

The utility model provides a pair of coke oven crude gas waste heat recovery heat transfer device, include urceolus (1), inner tube (2) and set up coil pipe (3) between urceolus (1) and inner tube (2), coil pipe (3) bottom is equipped with water inlet (4), the top is equipped with delivery port (5), be equipped with between inner tube (2) and coil pipe (3) heat conduction pad (6). The device simple structure, low cost are utilizing simultaneously coke oven high temperature raw coke oven gas waste heat recovery, and the elimination temperature variation prevents to heat exchange coil's harm that the coil pipe from leaking, avoid water to get into the coke oven and lead to the fact the coke oven damage.

Description

A kind of waste heat of coke oven crude gas reclaims heat-exchanger rig

Technical field

The utility model belongs to field of metallurgical equipment, particularly a kind of raw gas waste heat recovery heat-exchanger rig being applied to coke oven.

Background technology

Conventional coke oven has the upcast of deriving for raw gas, and high temperature raw gas exports in coke oven collecting main by upcast, and the heat that result in coke oven production technique raw gas is wasted in a large number.

When conventional heat exchanger structure is subject to alternating temperature-changing change in the course of the work, can expand with heat and contract with cold, cause structure deteriorate when stress is excessive, occur drainage, usual heat exchanger structure being applied to coke furnace carbonization chamber has very large infringement to furnace wall, affects the coke oven life-span.

In the coking cycles of coke oven, raw gas temperature change reaches more than 400 DEG C, and the structure of ordinary heat exchanger is difficult to stand the stress rupture that this temperature variation produces.The utility model is arranged between heat exchange coil and inner core has high heat conduction, high temperature resistant, the heat-conducting pad that has certain plasticity, play while heat transfer, absorb the ununiformity expansion that raw gas Periodic Temperature changes inner core and the coil pipe caused, prevent excessive coil pipe and the inner core of causing of stress from destroying.

Utility model content

Utility model object: in order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of waste heat of coke oven crude gas to reclaim heat-exchanger rig.

Technical scheme: a kind of waste heat of coke oven crude gas that the utility model provides reclaims heat-exchanger rig, the coil pipe comprising urceolus, inner core and be arranged between urceolus and inner core; Be provided with water-in bottom described coil pipe, top is provided with water outlet, between described inner core and coil pipe, be provided with heat conductive pad.

As improvement, bottom described urceolus, be provided with water shoot.

Improve as another kind, described heat conductive pad is plastic heat conductive pad.Heat conductive pad is high temperature resistant, high heat conduction, has the heat conductive pad of certain plastic material, thus can play the ununiformity expansion that absorption raw gas Periodic Temperature changes inner core and the coil pipe caused.

Improve as another kind, the vertical section of described inner core is circular.

Beneficial effect: it is simple, with low cost that the waste heat of coke oven crude gas that the utility model provides reclaims heat-exchanger rig structure, to the heat recovery of coke oven high temperature raw gas simultaneously, eliminate the infringement of temperature variation heat exchanging coil pipe, prevent coil pipe from leaking, avoid water to enter coke oven and cause coke oven to damage.

The upcast of coke oven is replaced by heat-exchanger rig of the present utility model, the hydrous water recycle system, the heat recovery of high temperature raw gas can be produced steam or hot water, the steam of production or hot water are applied to coke-oven plant again and produce or life, reach the object that heat recovery is energy-conservation.

Accompanying drawing explanation

Fig. 1 is the structural representation that the utility model waste heat of coke oven crude gas reclaims heat-exchanger rig.

Fig. 2 is the cross-sectional view that the utility model waste heat of coke oven crude gas reclaims heat-exchanger rig.

Embodiment

Below in conjunction with accompanying drawing the utility model made and further illustrating.

Waste heat of coke oven crude gas reclaims heat-exchanger rig, sees Fig. 1 to 2, the coil pipe 3 comprising urceolus 1, inner core 2 and be arranged between urceolus 1 and inner core 2; Be provided with water-in 4 bottom coil pipe 3, top is provided with water outlet 5, between inner core 2 and coil pipe 3, be provided with heat conductive pad 6.Water shoot 7 is provided with bottom urceolus 1.Heat conductive pad 6 is plastic heat conductive pad.The vertical section of inner core 2 is circular.

Principle of work is: high temperature raw gas flows into inner core from interchanger bottom, then from inner core outflow heat exchanger; Period, the heat of raw gas passed to interchanger inner core, and the heat of inner core is delivered to outside inner core, then passes to heat conductive pad, and heat conductive pad transfers heat to coil pipe again, and heat is delivered to the water in coil pipe by coil pipe; Water enters coil pipe from interchanger bottom, and from interchanger top outflow heat exchanger, the water absorbing raw gas heat isolates steam or direct outer supplying hot water again in gas-liquid separator.

Inner core is the inner core that the alloy material of high-temperature-resistant and anti-corrosion obtains, thus can play the effect isolated high temperature raw gas, prevent high temperature raw gas corrosion heat exchange coil.

Heat conductive pad is high temperature resistant, high heat conduction, has the heat conductive pad of certain plastic material, thus can play the ununiformity expansion that absorption raw gas Periodic Temperature changes inner core and the coil pipe caused.Arrange between heat exchange coil and inner core and there is high heat conduction, high temperature resistant, the heat conductive pad that has certain plasticity, play while heat transfer, absorb the ununiformity expansion that raw gas Periodic Temperature changes inner core and the coil pipe caused, prevent excessive coil pipe and the inner core of causing of stress from destroying, avoiding leaking enters coke oven and causes coke oven to damage.

Claims

1. waste heat of coke oven crude gas reclaims a heat-exchanger rig, it is characterized in that: the coil pipe (3) comprising urceolus (1), inner core (2) and be arranged between urceolus (1) and inner core (2); Described coil pipe (3) bottom is provided with water-in (4), top is provided with water outlet (5); Heat conductive pad (6) is provided with between described inner core (2) and coil pipe (3).

2. a kind of waste heat of coke oven crude gas according to claim 1 reclaims heat-exchanger rig, it is characterized in that: described urceolus (1) bottom is provided with water shoot (7).

3. a kind of waste heat of coke oven crude gas according to claim 1 reclaims heat-exchanger rig, it is characterized in that: described heat conductive pad (6) is plastic heat conductive pad.

4. a kind of waste heat of coke oven crude gas according to claim 1 reclaims heat-exchanger rig, it is characterized in that: the vertical section of described inner core (2) is for circular.