CN212390339U

CN212390339U - Boiler is to empty exhaust comprehensive recovery unit

Info

Publication number: CN212390339U
Application number: CN201922307745.3U
Authority: CN
Inventors: 王建彬; 王晓鹏; 成溢; 赵露; 祁美华
Original assignee: Shanghai Zhiyun Environmental Protection Technology Co ltd
Current assignee: Shanghai Zhiyun Environmental Protection Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2021-01-22
Anticipated expiration: 2029-12-19

Abstract

The utility model provides a recovery unit is synthesized to empty exhaust of boiler, which comprises a body, be equipped with relief valve, pressure tester, temperature tester, admission pipeline, inlet channel and return steam pipeline on the body, the inside mixing arrangement that is equipped with of body, the admission pipeline with the mixing arrangement is connected, be equipped with on the return steam pipeline and retrieve the steam control valve and send the vapour check valve, be equipped with the admission check valve on the admission pipeline, be equipped with the moisturizing governing valve on the inlet channel, the utility model provides a recovery unit is synthesized to empty exhaust of boiler not only can carry out the steam that opens the boiler and stop the safe high-efficient recovery that does not have the pollution completely, but also can indirectly retrieve the potential energy and the condensate water of exhaust steam.

Description

Boiler is to empty exhaust comprehensive recovery unit

Technical Field

The utility model relates to a steam recovery technical field specifically is a recovery unit is synthesized to empty steam extraction of boiler.

Background

In the cold starting process of the power station boiler, the temperature of a hearth needs to be gradually improved, the combustion intensity needs to be increased, and the temperature and the pressure of demineralized water in a boiler barrel need to be increased to meet the parallel quality requirement, particularly, the expansion rate and the direction of a boiler body need to be ensured to follow the operation flow specified by a boiler rule in the temperature and pressure increasing process, so that the cold boiler is a longer and slow process from ignition to parallel arrangement of new steam into a steam main pipe (or a sliding parameter starting steam turbine), the evaporation capacity of the boiler needs to be gradually increased to achieve the purpose of gradually increasing the temperature and the pressure of main steam, meanwhile, in order to protect a boiler superheater from being damaged by overtemperature, steam needs to flow through and be continuously cooled, when the steam temperature and the pressure slowly increase to a target value and meet the parallel requirement, a common small-sized power plant boiler needs to be 2-3 hours, the minimum evaporation capacity of the boiler is maintained at 5-, the large-scale boiler needs 4-5 hours, the minimum evaporation capacity is maintained at 8-25 tons/hour, except for a small part of steam used for heating pipes or draining water, the steam can be directly discharged to the atmosphere as waste gas, basically, the steam is not recycled, and noise pollution and waste of heat energy are caused to a certain extent.

And the power station boiler also relates to the flow of temperature reduction and steam exhaust in the process of fire suppression or furnace shutdown, steam can be discharged to the air without utilization in the operation flow of pressure relief, and according to the difference of furnace types (light furnace wall and heavy furnace wall), about 10-50 tons of waste heat and waste steam are discharged without utilization in the cooling process of one furnace shutdown, so that the same heat energy waste is caused to a certain extent.

SUMMERY OF THE UTILITY MODEL

To the problem pointed out in the background art, the utility model provides a recovery unit is synthesized to empty exhaust to boiler not only can carry out safe high-efficient pollution-free ground to the steam that opens the stop boiler and imitate the recovery entirely, but also can indirectly retrieve the potential energy and the condensate water of steam waste.

The technical scheme of the utility model is realized like this:

the utility model provides a recovery unit is synthesized to empty exhaust of boiler which characterized in that: the steam mixing device comprises a body, be equipped with relief valve, pressure tester, temperature tester, admission pipeline, inlet channel and return line on the body, the inside mixing arrangement that is equipped with of body, the admission pipeline with mixing arrangement connects, be equipped with on the return line and retrieve the steam control valve and send the vapour check valve, be equipped with the admission check valve on the admission pipeline, be equipped with the moisturizing governing valve on the inlet channel.

The utility model discloses further set up to: an observation port is arranged on the side wall of the body.

The utility model discloses further set up to: and the side wall of the body is also provided with an access hole.

The utility model discloses further set up to: the lower section of the body is provided with a blowdown control valve.

To sum up, the beneficial effects of the utility model are that: the utility model provides a recovery unit is synthesized to empty exhaust steam to boiler not only can carry out safe high-efficient pollution-free ground to the steam that opens the stop boiler and imitate the recovery entirely, but also can indirectly retrieve the potential energy and the condensate water of steam waste, and this system device simple structure, maintenance cost are low, the investment is little and retrieve the benefit height simultaneously, are the heat recovery unit of safe economic operation management.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other applications can be obtained by those skilled in the art without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

reference numerals: 1. a safety valve; 2. a pressure tester; 3. a temperature tester; 4. a recovery steam control valve; 5. a steam delivery check valve; 6. an observation port; 7. an inlet check valve; 8. a mixing device; 9. an access hole; 10. A water replenishing regulating valve; 11. a blowdown control valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention is explained below with reference to fig. 1:

the utility model provides a recovery unit is synthesized to empty exhaust of boiler which characterized in that: the steam turbine comprises a body, be equipped with safe 1 valve, pressure tester 2, temperature tester 3, admission pipeline, inlet channel and return steam pipeline on the body, the inside mixing arrangement 8 that is equipped with of body, the admission pipeline with mixing arrangement 8 is connected, be equipped with on the return steam pipeline and retrieve steam control valve 4 and send vapour check valve 5, be equipped with admission check valve 7 on the admission pipeline, be equipped with moisturizing governing valve 10 on the inlet channel.

Preferably, the side wall of the body is provided with an observation port 6.

Preferably, the side wall of the body is further provided with an access opening 9.

Preferably, the lower section of the body is provided with a blowdown control valve 11.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. 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 recovery unit is synthesized to empty exhaust of boiler which characterized in that: the steam mixing device comprises a body, be equipped with relief valve, pressure tester, temperature tester, admission pipeline, inlet channel and return line on the body, the inside mixing arrangement that is equipped with of body, the admission pipeline with mixing arrangement connects, be equipped with on the return line and retrieve the steam control valve and send the vapour check valve, be equipped with the admission check valve on the admission pipeline, be equipped with the moisturizing governing valve on the inlet channel.

2. The comprehensive recovery device of the boiler pair-air exhaust steam according to claim 1, characterized in that: an observation port is arranged on the side wall of the body.

3. The comprehensive recovery device of the boiler pair-air exhaust steam according to claim 1, characterized in that: and the side wall of the body is also provided with an access hole.

4. The comprehensive recovery device of the boiler pair-air exhaust steam according to claim 1, characterized in that: the lower section of the body is provided with a blowdown control valve.