CN211780987U

CN211780987U - Fuming furnace waste heat steam supply system

Info

Publication number: CN211780987U
Application number: CN202020389350.2U
Authority: CN
Inventors: 李少晨; 奚军; 刘志杰; 梁超琪; 马继辉; 岳旋
Original assignee: Shaanxi Wanfang Energy Saving Science & Technology Co ltd
Current assignee: Shaanxi Hanhai Hydrogen Energy Technology Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-10-27
Anticipated expiration: 2030-03-24

Abstract

The utility model discloses a fuming furnace exhaust-heat steam supplies vapour system, include fuming furnace exhaust-heat boiler, high-pressure steam-distributing cylinder, steam heat accumulator, low pressure steam-distributing cylinder and be used for connecting the pipeline of each equipment, still include the temperature and pressure reducer, the temperature and pressure reducer setting is between high-pressure steam-distributing cylinder and steam heat accumulator. The utility model discloses a fuming furnace exhaust-heat steam supplies vapour system to increase the temperature and pressure reducer between high temperature steam-distributing cylinder and steam heat accumulator, and the steam that fuming furnace exhaust-heat boiler produced reduces the pressure through the temperature and pressure reducer earlier, gets into the heat accumulation of steam heat accumulator again, reduces the performance requirement of steam heat accumulator, prolongs the change cycle of steam heat accumulator, reduces equipment cost, and this kind of steam supply mode can improve the initial parameter of fuming furnace exhaust-heat boiler steam simultaneously.

Description

Fuming furnace waste heat steam supply system

Technical Field

The utility model relates to a waste heat steam supplies vapour technical field, especially relates to a fuming furnace waste heat steam supplies vapour system.

Background

The fuming furnace in the non-ferrous metallurgy solid waste disposal process is operated periodically, and the operation period of the fuming furnace is as follows: 160 min/furnace, wherein the feeding is 20min, the blowing is 90-100min, the slag is discharged for 15min, and the feeding is 25 min. The smoke entering the waste heat boiler of the fuming furnace is in periodic change, so that the steam generated by the waste heat boiler also changes along with the operation period of the fuming furnace, the cyclic fluctuation is 7-8 times every day, the steam production is maximum in the blowing period, the steam production is reduced in the feeding period, and the steam production of the waste heat boiler is minimum and is almost 0 in the later period of slag discharging. The steam produced is non-continuous steam, so the steam utilization rate is low, the steam quantity has surplus during the steam production peak, the steam needs to be discharged or condensed, the heat load requirement cannot be met during the steam production valley, external heat source measures such as an industrial boiler and the like need to be arranged for solving, and the equipment investment and the energy consumption are increased.

At present, a steam heat accumulator is arranged in a waste heat steam supply process of a general fuming furnace, but high-temperature high-pressure steam directly enters the steam heat accumulator, so that the performance of the steam heat accumulator is indirectly required to be increased, and meanwhile, the high-temperature high-pressure steam impairs the service life of the steam heat accumulator, so that the replacement cycle of the steam heat accumulator is shortened, and the equipment investment is increased.

Therefore, how to reduce the equipment investment in the waste heat steam supply process of the fuming furnace and reduce the equipment cost is a new problem to be solved in the waste heat steam supply process of the fuming furnace.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fuming furnace waste heat steam supplies vapour system can effectively solve the problem that steam heat accumulator performance requires height, change cycle is short and equipment cost is high.

In order to achieve the above purpose, the technical scheme of the utility model is that:

the utility model provides a fuming furnace exhaust-heat steam supplies vapour system, includes fuming furnace exhaust-heat boiler, high-pressure steam-distributing cylinder, steam heat accumulator, low pressure steam-distributing cylinder and is used for connecting the pipeline of each equipment, and fuming furnace exhaust-heat boiler, high-pressure steam-distributing cylinder, steam heat accumulator and low pressure steam-distributing cylinder are series connection in proper order, still include the pressure reducer that reduces the temperature, the pressure reducer that reduces the temperature sets up between high-pressure steam-distributing cylinder and steam heat accumulator.

Preferably, still include first automatically regulated valve, first one-way check valve, second one-way check valve and second automatically regulated valve, first automatically regulated valve one end is passed through the pipeline and is linked to each other with the pressure reducer gas outlet that subtracts the temperature, and the other end passes through the pipeline and links to each other with the one end of first one-way check valve, the other end of first one-way check valve passes through the pipeline and links to each other with steam heat accumulator air inlet, the one end of second one-way check valve passes through the pipeline and links to each other with steam heat accumulator gas outlet, and the other end passes through the pipeline and links to each other with the one end of second automatically regulated valve, the other end.

Preferably, the system also comprises a steam flow meter, wherein one end of the steam flow meter is connected with the air outlet of the low-pressure gas distributing cylinder through a pipeline, and the other end of the steam flow meter is connected with the air inlet of the user pipe network through a pipeline.

Preferably, still include make-up water pump and oxygen-eliminating device, the make-up water pump passes through the pipeline and links to each other with the oxygen-eliminating device water inlet, the oxygen-eliminating device delivery port passes through the pipeline and links to each other with fuming furnace exhaust-heat boiler.

Preferably, the high-pressure gas cylinder, the steam accumulator and the low-pressure gas cylinder are provided with at least two spare nozzles on the side wall.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a fuming furnace exhaust-heat steam supplies vapour system to increase the temperature and pressure reducer between high temperature steam-distributing cylinder and steam heat accumulator, and the steam that fuming furnace exhaust-heat boiler produced reduces the pressure through the temperature and pressure reducer earlier, gets into the heat accumulation of steam heat accumulator again, reduces the performance requirement of steam heat accumulator, prolongs the change cycle of steam heat accumulator, reduces equipment cost, and this kind of steam supply mode can improve the initial parameter of fuming furnace exhaust-heat boiler steam simultaneously.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of a fuming furnace waste heat steam supply system of the present invention;

reference numbers in the figures: 1. a make-up water pump; 2. a deaerator; 3. a fuming furnace waste heat boiler; 4. a high-pressure steam distributing cylinder; 5. a temperature and pressure reducer; 6. a first self-regulating valve; 7. a first one-way check valve; 8. a steam heat accumulator; 9. a second one-way check valve; 10. a second self-regulating valve; 11. a low-pressure steam distributing cylinder; 12. a steam flow meter; 13. and (4) a user pipe network.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to the attached drawing 1, the fuming furnace waste heat steam supply system comprises a fuming furnace waste heat boiler 3, a high-pressure steam distributing cylinder 4, a steam heat accumulator 8, a low-pressure steam distributing cylinder 11 and pipelines for connecting the devices, wherein the fuming furnace waste heat boiler 3, the high-pressure steam distributing cylinder 4, the steam heat accumulator 8 and the low-pressure steam distributing cylinder 11 are sequentially connected in series, and the fuming furnace waste heat steam supply system further comprises a temperature and pressure reducing device 5, and the temperature and pressure reducing device 5 is arranged between the high-pressure steam distributing cylinder 4 and the steam heat accumulator.

Wherein, 6 one end of first automatically regulated valve links to each other with the 5 gas outlets of pressure reducer that subtracts the temperature through the pipeline, the other end passes through the pipeline and links to each other with the one end of first one-way check valve 7, the other end of first one-way check valve 7 passes through the pipeline and links to each other with 8 air inlets of steam heat accumulator, the one end of second one-way check valve 9 passes through the pipeline and links to each other with 8 gas outlets of steam heat accumulator, the other end passes through the pipeline and links to each other with the one end of second automatically regulated valve 10, the other end and the 11.

Wherein, steam flowmeter 12 one end passes through the pipeline and links to each other with low pressure gas-distributing cylinder 11 gas outlet, and the other end passes through the pipeline and links to each other with user pipe network 13 air inlet.

Wherein, make-up water pump 1 passes through the pipeline and links to each other with 2 water inlets of deaerator, and 2 delivery ports of deaerator pass through the pipeline and link to each other with fuming furnace exhaust-heat boiler 3.

The high-pressure steam distributing cylinder 4, the steam heat accumulator 8 and the low-pressure steam distributing cylinder 11 are provided with at least two standby pipe orifices on the side walls, so that equipment can be upgraded and modified at a later stage.

The utility model discloses a theory of operation is:

the fuming furnace waste heat boiler 3 generates steam, the steam enters the high-pressure steam distributing cylinder 4 through a pipeline and then enters the temperature and pressure reducing device 5, and the steam enters the steam heat accumulator 8 after being subjected to temperature and pressure reducing. When the gas production rate of the fuming furnace waste heat boiler 3 is greater than the demand of a user pipeline network 13, the first automatic regulating valve 6 and the first one-way check valve 7 work, and redundant steam enters the steam heat accumulator 8 for heat charging; when the gas production rate of the fuming furnace waste heat boiler 3 is less than the demand of the user pipe network 13, the second one-way check valve 9 and the second automatic regulating valve 10 work, and the steam heat accumulator 8 releases heat. Thus generating steam with stable load, entering the low-pressure steam-distributing cylinder 5, continuously supplying steam to the user pipe network 13, and the steam flow meter 12 is used for measuring the steam flow.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fuming furnace waste heat steam supplies vapour system, includes fuming furnace exhaust-heat boiler, high-pressure steam-distributing cylinder, steam heat accumulator, low pressure steam-distributing cylinder and is used for connecting the pipeline of each equipment, and fuming furnace exhaust-heat boiler, high-pressure steam-distributing cylinder, steam heat accumulator and low pressure steam-distributing cylinder are series connection in proper order, its characterized in that still includes the temperature reduction pressure reducer, the temperature reduction pressure reducer sets up between high-pressure steam-distributing cylinder and steam heat accumulator.

2. The fuming furnace waste heat steam supply system as recited in claim 1, further comprising a first automatic regulating valve, a first one-way check valve, a second one-way check valve and a second automatic regulating valve, wherein one end of the first automatic regulating valve is connected with the gas outlet of the temperature and pressure reduction reducer through a pipeline, the other end of the first automatic regulating valve is connected with one end of the first one-way check valve through a pipeline, the other end of the first one-way check valve is connected with the gas inlet of the steam heat accumulator through a pipeline, one end of the second one-way check valve is connected with the gas outlet of the steam heat accumulator through a pipeline, the other end of the second one-way check valve is connected with one end of the second automatic regulating valve through a pipeline.

3. The fuming furnace waste heat steam supply system as recited in claim 1, further comprising a steam flow meter, wherein one end of the steam flow meter is connected with the air outlet of the low-pressure steam distributing cylinder through a pipeline, and the other end of the steam flow meter is connected with the air inlet of the user pipe network through a pipeline.

4. The fuming furnace waste heat steam supply system as recited in claim 1, further comprising a make-up water pump and a deaerator, wherein the make-up water pump is connected with a water inlet of the deaerator through a pipeline, and a water outlet of the deaerator is connected with a waste heat boiler of the fuming furnace through a pipeline.

5. The fuming furnace waste heat steam supply system as recited in claim 1, wherein the high-pressure steam header, the steam heat accumulator and the low-pressure steam header are provided with at least two spare nozzles on the side wall.