CN216347844U

CN216347844U - Horizontal pipe primary cooler circulating water utilization system and coke oven system

Info

Publication number: CN216347844U
Application number: CN202122073861.0U
Authority: CN
Inventors: 孙国宏; 王迪
Original assignee: Shandong Province Metallurgical Engineering Co Ltd
Current assignee: Shandong Province Metallurgical Engineering Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-04-19
Anticipated expiration: 2031-08-30

Abstract

The heat of low temperature hot water in the horizontal pipe primary cooler does not obtain fine utilization among the prior art to the syllogic, and only adopts the air cooler to cool down usually among the prior art, when the temperature is high in summer, need carry out manifold cycles, has improved the problem of processing cost. Violently manage primary cooler circulating water and utilize system including violently managing the primary cooler, violently manage the inside circulating water pipeline that includes of primary cooler, the circulating water pipeline is divided into the three routes in the export, and low temperature cooling water set is connected to first way, and air cooling device is connected to the second way, and heating hot water system is connected to the third way. The coke oven system comprises a coke oven, a transverse pipe primary cooler is mounted at a smoke outlet of the coke oven, and the transverse pipe primary cooler is provided with the transverse pipe primary cooler circulating water utilization system. The problem of among the prior art three-section type violently pipe primary cooler medium and low temperature hot water's heat does not obtain fine utilization, and low temperature hot water needs additionally to install the heat sink, has improved technology cost is solved.

Description

Horizontal pipe primary cooler circulating water utilization system and coke oven system

Technical Field

The utility model relates to the technical field of circulating water waste heat utilization, and particularly provides a horizontal pipe primary cooler circulating water utilization system and a coke oven system.

Background

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

In the prior art, when coke oven gas leaves a coke oven, the coke oven gas enters a gas collection main pipe through an ascending pipe at 650-750 ℃. Cooling the gas in the bridge pipe to 80-90 ℃ by circulating ammonia water, then feeding the gas into a gas primary cooler, cooling the gas to 21-23 ℃ or 25-30 ℃ by different cooling equipment according to different purification process requirements, and then feeding the gas into subsequent processes.

The main equipment of the coke oven gas cooling process is a gas primary cooler, which is the most commonly used horizontal pipe primary cooler at present and can be supplied with water in two or three sections. The two-stage water supply is low-temperature water and circulating water, and no waste heat is utilized. The inventor finds that in the prior art, the circulating water quantity of the three-section water supply horizontal pipe primary cooler low-temperature hot water section of the conventional mechanical coke oven is large, the temperature is not very high, the grade of water is low, the heat is not well utilized in the past, the low-temperature hot water after heat exchange of the horizontal pipe primary cooler needs to be cooled, in the prior art, only an air cooler is generally adopted for cooling, and when the temperature is high in summer, multiple times of circulation are needed, so that the process cost is increased.

SUMMERY OF THE UTILITY MODEL

The heat of low temperature hot water in the horizontal pipe primary cooler does not obtain fine utilization among the prior art to the syllogic, and only adopts the air cooler to cool down usually among the prior art, when the temperature is high in summer, need carry out manifold cycles, has improved the problem of processing cost.

In one or more embodiments of the utility model, the system for utilizing the circulating water of the transverse pipe primary cooler comprises a transverse pipe primary cooler, wherein a circulating water pipeline is arranged in the transverse pipe primary cooler, the circulating water pipeline is divided into three paths at an outlet, the first path is connected with a low-temperature water chilling unit, the second path is connected with an air cooling device, and the third path is connected with a heating hot water system.

In one or more embodiments of the utility model, a coke oven system is provided, which comprises a coke oven, wherein a transverse pipe primary cooler is installed at a smoke outlet of the coke oven, and the transverse pipe primary cooler is provided with the transverse pipe primary cooler circulating water utilization system.

One or some of the above technical solutions have the following advantages or beneficial effects:

1) the horizontal pipe primary cooler is combined with the refrigerating and heating equipment, no additional cooling device is needed, the process cost is saved, adjustment can be performed in combination with seasons, and effective cooling of circulating water in the horizontal pipe primary cooler is achieved.

2) The utility model realizes the annual closed cycle of the circulating cooling water of the high-temperature section of the coal gas of the transverse pipe primary cooler, ensures that the water quality of the circulating water is not polluted, and reduces the cleaning and maintenance cost of equipment. The circulating water of the transverse pipe primary cooler is used for heating a plant area and a residential area in winter, so that the coal consumption can be greatly reduced, and the emission of atmospheric pollutants is reduced. The aims of saving energy, protecting environment and saving operation cost are fulfilled.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

Fig. 1 is a schematic view of a system for utilizing circulating water of a horizontal pipe primary cooler in the embodiment of the utility model.

Wherein: 1. a low temperature chiller; 2. a circulation pump; 3. an air cooling device; 4. a heating hot water circulating pump; 5. a transverse pipe primary cooler; 6. a filtration device; 7. a water replenishing tank; 8. constant pressure water replenishing device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In one or more embodiments of the utility model, the system for utilizing the circulating water of the transverse pipe primary cooler comprises a transverse pipe primary cooler 5, wherein a circulating water pipeline is arranged in the transverse pipe primary cooler 5, the circulating water pipeline is divided into three paths at an outlet, the first path is connected with a low-temperature water chilling unit 1, the second path is connected with an air cooling device 3, and the third path is connected with a heating hot water system.

The horizontal pipe type primary cooler is a device used by gas company or other chemical companies for cooling hot gas, and is internally provided with a plurality of horizontal pipes in which cooling water circulates. The cooling water is divided into first-stage cooling water and second-stage cooling water, the temperature of the first-stage cooling water is generally 25-32 ℃, and the first-stage cooling water circulates in the upper half part of the primary cooler; the temperature of the secondary cooling water is generally 18-25 ℃, and the secondary cooling water circulates in the lower half part of the primary cooler. The hot gas gets into by the primary cooler top, goes out by the bottom again, and the hot gas meets the cooling water in the cross tube and cools down in the primary cooler, makes the gas temperature who goes out the primary cooler reach technical indicator.

In prior art, become low temperature hot water after violently managing primary cooler 5 well recirculated cooling water heating, for making violently manage primary cooler 5 well recirculated water and reuse, generally need cool off the circulating water of violently managing primary cooler 5, install air cooling device 3 among the prior art usually and cool down, but the inventor discovers, on the one hand, adopt air cooling device 3 to cool down, it is extravagant completely with the heat, on the other hand, air cooling device 3 regards as the cold source with the air, and temperature is high in summer, the air temperature is high, it is poor as cold source heat transfer effect, need carry out manifold cycles, and process cost greatly increased.

Therefore, the inventor provides above-mentioned horizontal pipe primary cooler circulating water utilizes system, divides into three routes with the circulating water, gets into in the air cooling device 3 in spring and autumn and carries out the heat transfer, gets into in the heating hot water system winter, realizes that low temperature hot water heat source utilizes, then gets into in the low temperature cooling water set 1 summer, and including the condensing agent in the low temperature cooling water set 1, can rapid cooling, do not receive season high temperature interference.

It should be understood that the low-temperature hot water usually cannot meet the heating requirement in winter, so a heating device is also needed in the heating system, but the low-temperature hot water has a certain initial temperature, so that the consumption of coal, fuel oil and the like of the heating system can be reduced.

The horizontal pipe primary cooler is combined with the refrigerating and heating equipment, no additional cooling device is needed, the process cost is saved, adjustment can be performed in combination with seasons, and effective cooling of circulating water in the horizontal pipe primary cooler is achieved.

Preferably, the refrigerator is a low-temperature hot water type lithium bromide absorption refrigerator, and cold water at 16/23 ℃ can be prepared for the use of a transverse pipe primary cooler and other users, or cold water at 7/12 ℃ can be prepared for the use of air-conditioning users.

Preferably, the low-temperature water chilling unit 1 is a water chilling unit in an air conditioning system. Because the air conditioners are arranged in most factory buildings at present, the water chilling unit in the air conditioning system is very convenient to use, and the cooling equipment does not need to be installed again.

Preferably, at least one outlet pipeline of the transverse pipe primary cooler 5 is connected with a water replenishing pipeline, and the water replenishing pipeline is supplied with water by a water replenishing tank 7. Because part of the circulating water evaporates into the atmosphere, the circulating water needs to be supplemented periodically to maintain the water pressure balance.

Preferably, the water replenishing pipeline is provided with a filtering device 6.

Preferably, the outlet of the water replenishing tank 7 comprises a constant-pressure water replenishing device 8. The constant pressure water replenishing device 8 is widely used in the prior art, and in a closed loop system, an expansion facility needs to be adjusted in order to ensure the stability of the system pressure. When the system pressure decreases, the pressure in the water chamber of the pressure tank connected to the system also decreases, the volume of the air chamber expands, and the pressure also decreases. When the control system sets the lower limit, the water pump is automatically turned on to replenish the system until the setting is reached. The upper pressure limit is set and the pump stops operating. When the water in the system is heated, the temperature rises, the volume expands, the air chamber is squeezed, and the pressure of the pressure system rises. When the limit is reached, water in the system enters the expander (or softened water tank) through a safety release. The system pressure also drops to the set point and pressure release stops. The effect of constant pressure water replenishing is achieved.

Preferably, valves are arranged on the three circulating water pipelines. The operator can adjust the valve according to the season and temperature change. The waste heat water consumption can be adjusted according to the heat demand all the year round, and the quantity of the waste heat water can be obtained according to the demand of users in the total quantity range.

Preferably, the low-temperature water chilling unit 1 is of a tubular structure, a condensing agent flows in the pipe, a jacket is arranged outside the pipe, and circulating water flows from the jacket.

Preferably, the air cooling device 3 comprises a plurality of series-connected air coolers. Specifically, the number of the air coolers can be adjusted according to the temperature condition, and part of the air coolers can be shut down frequently according to the process requirement.

Preferably, the circulating water pipeline comprises a water return pipeline, and a plurality of circulating pumps 2 connected in parallel are arranged on the water return pipeline. The circulating pump 2 is used for enabling circulating water to flow rapidly, and the process operation is influenced when a certain circulating pump 2 is damaged by the aid of the multiple parallel circulating pumps 2. The circulating pump 2 adopts frequency conversion speed regulation and carries out quantity regulation according to the requirements of heating users.

In one or some embodiments of the utility model, a method for utilizing circulating water of a transverse pipe primary cooler is provided, and the method is carried out in the circulating water utilization system of the transverse pipe primary cooler, and comprises the following steps:

after the heat transfer in violently managing primary cooler 5, the flue gas gets into different circulation branch roads according to the season, gets into low temperature cooling water set 1 promptly in summer, gets into heating hot water system winter, and then in getting into air cooling device 3 in spring and autumn, after the heat transfer, the circulating water temperature descends, returns and violently manages primary cooler 5 in.

The water is periodically supplemented to the circulating water utilization system of the transverse pipe primary cooler, namely, the constant-pressure water supplementing device 8 is started, circulating water is supplemented into the pipeline through the water supplementing tank 7, the circulating water pressure is ensured, and the stable operation of the process is realized.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. The utility model provides a violently manage primary cooler circulating water and utilize system which characterized in that, is including violently managing primary cooler (5), violently manage the inside circulating water pipeline that includes of primary cooler (5), the circulating water pipeline is divided into the three routes at the export, and low temperature cooling water set (1) is connected to the first way, and air cooling device (3) are connected to the second way, and heating hot water system is connected to the third way.

2. The cross-pipe primary cooler circulating water utilizing system as claimed in claim 1, wherein the low-temperature water chilling unit (1) is a water chilling unit in an air conditioning system.

3. The horizontal pipe primary cooler circulating water utilizing system as claimed in claim 1, wherein at least one outlet pipeline of the horizontal pipe primary cooler (5) is connected with a water replenishing pipeline, and the water replenishing pipeline is supplied with water by a water replenishing tank (7).

4. The cross-pipe primary cooler circulating water utilizing system as claimed in claim 3, wherein the water supply pipe is provided with a filtering device (6).

5. The horizontal tube primary cooler circulating water utilizing system as claimed in claim 3, wherein the outlet of the water replenishing tank (7) comprises a constant pressure water replenishing device (8).

6. The system for utilizing the circulating water of the transverse pipe primary cooler as claimed in claim 1, wherein valves are arranged on the three circulating water pipelines.

7. The horizontal pipe primary cooler circulating water utilizing system as claimed in claim 1, wherein the low temperature water chilling unit (1) is in a pipe type structure, a condensing agent flows in the pipe, a jacket is arranged outside the pipe, and circulating water flows from the jacket.

8. The cross-pipe primary cooler circulating water utilizing system as claimed in claim 1, wherein the air cooling device (3) comprises a plurality of air coolers connected in series.

9. The horizontal tube primary cooler circulating water utilizing system as claimed in claim 1, wherein the circulating water pipeline comprises a water return pipeline, and a plurality of circulating pumps (2) connected in parallel are arranged on the water return pipeline.

10. A coke oven system is characterized by comprising a coke oven, wherein a transverse pipe primary cooler is installed at a smoke outlet of the coke oven, and the transverse pipe primary cooler is provided with the circulating water utilization system of the transverse pipe primary cooler according to any one of claims 1 to 9.