阅读说明：本技术 一种煮沸锅二次蒸汽尾气处理系统及方法 (System and method for treating secondary steam tail gas of boiling boiler ) 是由 曹珠东 王航军 赵爱军 于 2020-12-04 设计创作，主要内容包括：本发明公开了一种煮沸锅二次蒸汽尾气处理系统,其技术方案要点是包括有煮沸锅和排气管,煮沸锅通过排气管依次连接有二次蒸汽换热器和水封罐,排气管上设置有排气阀,排气阀设置于二次蒸汽换热器与水封罐之间,二次蒸汽换热器上连接有蒸汽出管,蒸汽出管上设置有蒸汽阀,水封罐连接有进水装置和排水管和溢流管,排水管上设置有排水阀,溢流管内设置有溢流阀,水封罐内设置有高液位感应器,高液位感应器预设有高料位液位,高液位感应器与进水装置电连接设置,该尾气处理系统能够有效处理尾气产生的麦芽味道,减少对周围群众的伤害,以及合理利用尾气中的热量,提高能源利用率。(The invention discloses a boiling pan secondary steam tail gas treatment system, which is characterized by comprising a boiling pan and an exhaust pipe, wherein the boiling pan is sequentially connected with a secondary steam heat exchanger and a water-sealed tank through the exhaust pipe, the exhaust pipe is provided with an exhaust valve, the exhaust valve is arranged between the secondary steam heat exchanger and the water-sealed tank, the secondary steam heat exchanger is connected with a steam outlet pipe, the steam outlet pipe is provided with a steam valve, the water-sealed tank is connected with a water inlet device, a water outlet pipe and an overflow pipe, the drain pipe is provided with a drain valve, the overflow pipe is internally provided with an overflow valve, the water-sealed tank is internally provided with a high liquid level sensor, the high liquid level sensor is preset with a high liquid level, the high liquid level sensor is electrically connected with the water inlet device, the tail gas treatment system can effectively treat malt taste generated by tail gas, reduce the, the energy utilization rate is improved.)

1. The utility model provides a boil pot secondary steam tail gas processing system, including boiling pot (1) and blast pipe (11), characterized by: the boiling pot (1) is sequentially connected with a secondary steam heat exchanger (2) and a water-sealed tank (3) through an exhaust pipe (11), an exhaust valve (12) is arranged on the exhaust pipe (11), the exhaust valve (12) is arranged between the secondary steam heat exchanger (2) and the water-sealed tank (3), a steam outlet pipe (21) is connected onto the secondary steam heat exchanger (2), and a steam valve (22) is arranged on the steam outlet pipe (21);

water seal tank (3) are connected with water installations (31) that are used for water injection in to water seal tank (3) and are used for outside exhaust drain pipe (32) of water in water seal tank (3) and the overflow pipe that is used for protecting water seal tank (3) internal pressure, be provided with drain valve (33) on drain pipe (32), be provided with the overflow valve in the overflow pipe, be provided with high level inductor (34) in water seal tank (3), high level inductor (34) have preset high material level liquid level, high level inductor (34) are connected the setting with water installations (31) electricity, and water installations (31) stop to water seal tank (3) internal water conveying when water seal tank (3) interior liquid is less than high material level liquid level water installations (31) when liquid reaches high material level liquid level in water seal tank (3).

2. The system for treating the secondary steam tail gas of the boiling pot as claimed in claim 1, which is characterized in that: the water inlet device (31) comprises a water inlet pipe (311), a water supplementing pipe (312), a water inlet valve (313) arranged on the water inlet pipe (311) and a water supplementing valve (314) arranged on the water supplementing pipe (312), and the high liquid level sensor (34) is electrically connected with the water supplementing valve (314).

3. The system for treating the secondary steam tail gas of the boiling pot as claimed in claim 2, which is characterized in that: the inside top of water sealed tank (3) is provided with washes ball (35), wash ball (35) and moisturizing pipe (312) intercommunication setting for carry out the moisturizing and spray.

4. The system for treating the secondary steam tail gas of the boiling pot as claimed in claim 1, which is characterized in that: the one end that water seal tank (3) were kept away from in drain pipe (32) is connected with recovery water tank (4), recovery water tank (4) utilize the end including recovery water entrance point and recovery water drainage end and recovery water, the recovery water utilizes the end to be connected with water seal tank (3) through recovery water pipe (41), be provided with moisturizing motor (42) on recovery water pipe (41).

5. The system for treating the secondary steam tail gas of the boiling pot as claimed in claim 2, which is characterized in that: still including central control end (5), set up low liquid level inductor (51) in water sealed tank (3), low liquid level inductor (51) are connected with central control end (5) communication, and central control end (5) goes up to show standby suggestion when low liquid level inductor (51) detect no liquid level in water sealed tank (3).

6. The system for treating the secondary steam tail gas of the boiling pot as claimed in claim 5, which is characterized in that: the central control end (5) is connected with a timer (52), the timer (52) is respectively connected with the water replenishing valve (314) and the high liquid level sensor (34), a time range is preset in the timer (52), and when the timer (52) reaches the time range, the water replenishing valve (314) is opened and the high liquid level sensor (34) is closed.

7. A method for treating secondary steam tail gas of a boiling pot is characterized by comprising the following steps:

s1, opening the water inlet valve (313), injecting water into the water-sealed tank (3) through the water inlet pipe (311), and closing the water inlet valve (313) when the requirement of high material level liquid level is met;

s2, the central control end (5) receives a boiling signal of the boiling pot (1), the boiling pot (1) enters a low-pressure dynamic boiling process, the steam valve (22) is closed, the exhaust valve (12) is opened, and the secondary steam heat exchanger (2) is started;

s3, the central control end (5) starts the high liquid level sensor (34);

s4, the boiling pot (1) enters a normal pressure boiling state, the high liquid level sensor (34) is closed, and the water replenishing valve (314) is opened;

s5, the central control end (5) receives a signal that the boiling pot (1) is completely boiled, the water replenishing valve (314) is closed, the low liquid level sensor (51) is opened, and the drain valve (33) is opened.

8. The method for treating the secondary steam tail gas of the boiling pot as claimed in claim 7, which is characterized in that: the step S3 specifically includes:

s31, the high liquid level sensor (34) senses the liquid height in the water seal tank (3) and feeds back a liquid height signal to the central control end (5);

s32, when the liquid height is lower than the high material level liquid level, the central control end (5) controls the water replenishing valve (314) to be opened, and water is injected into the water seal tank (3) through the water replenishing pipe (312);

and S33, when the liquid height reaches the high-material-level liquid level, the central control end (5) controls the water replenishing valve (314) to be closed.

9. The method for treating the secondary steam tail gas of the boiling pot as claimed in claim 7, which is characterized in that: the step S4 specifically includes the following steps:

s41, entering a low-pressure dynamic boiling state to start timing;

s42, timing to 40 minutes, closing the high liquid level sensor (34) and opening the water replenishing valve (314);

and S43, timing to 45 minutes, and closing the water replenishing valve (314).

10. The method for treating the secondary steam tail gas of the boiling pot as claimed in claim 7, which is characterized in that: also comprises S6, the drain pipe (32) discharges the liquid into the recovery water tank (4);

s60, the central control end (5) judges the use times of the liquid;

s61, when the liquid is used more than or equal to twice, the liquid is discharged from the water discharge end of the recovered water;

and S62, when the liquid is used less than twice, reserving the liquid in the recovery water tank (4) for waiting for the next use.

Technical Field

The invention relates to the field of tail gas treatment, in particular to a system and a method for treating secondary steam tail gas of a boiling pot.

Background

In the normal production process of beer, the wort boiling process is a very important link, a boiler generates a large amount of steam in the boiling process and directly discharges the steam into the atmosphere, the steam is accompanied by malt fragrance and the like, and the taste is considered by people around the periphery as peculiar smell and a polluted taste, and the steam is accompanied by a large amount of heat and belongs to thermal pollution.

In response to the national environmental requirements, how to effectively solve the odor pollution and the thermal pollution is the most important thing at present.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a boiler secondary steam tail gas treatment system and a boiler secondary steam tail gas treatment method.

In order to achieve the purpose, the invention provides the following technical scheme: a boiling pan secondary steam tail gas treatment system comprises a boiling pan and an exhaust pipe, wherein the boiling pan is sequentially connected with a secondary steam heat exchanger and a water-sealed tank through the exhaust pipe, the exhaust pipe is provided with an exhaust valve, the exhaust valve is arranged between the secondary steam heat exchanger and the water-sealed tank, the secondary steam heat exchanger is connected with a steam outlet pipe, and the steam outlet pipe is provided with a steam valve;

the water seal tank is connected with the water installations who is used for to water seal tank water injection and is used for with the outside exhaust drain pipe of water in the water seal tank and the overflow pipe that is used for protecting water seal tank internal pressure, be provided with the drain valve on the drain pipe, be provided with the overflow valve in the overflow pipe, be provided with high liquid level inductor in the water seal tank, high liquid level inductor has preset high material level liquid level, high liquid level inductor is connected the setting with the water installations electricity, and water installations is to water seal tank water delivery when water in the water seal tank is less than high material level liquid level, and water installations stops to water seal tank water delivery when water in the water seal tank liquid reaches high material level liquid level.

The invention is further configured to: the water inlet device comprises a water inlet pipe, a water replenishing pipe, a water inlet valve arranged on the water inlet pipe and a water replenishing valve arranged on the water replenishing pipe, and the high liquid level sensor is electrically connected with the water replenishing valve.

The invention is further configured to: the top of water seal tank inside is provided with washes the ball, wash the ball and communicate the setting with the moisturizing pipe for the moisturizing sprays.

The invention is further configured to: the one end that the drain pipe kept away from the water seal tank is connected with recovery water tank, recovery water tank utilizes the end including recovery water entrance point and recovery water drainage end and recovery water, the recovery water utilizes the end to be connected with the water seal tank through recovery water pipe, be provided with the moisturizing motor on the recovery water pipe.

The invention is further configured to: still including central control end, be provided with low liquid level inductor in the water seal tank, low liquid level inductor and central control end communication are connected, and central control end goes up to show standby suggestion when low liquid level inductor detects no liquid level in the water seal tank.

The invention is further configured to: the central control end is connected with a timer, the timer is respectively connected with the water replenishing valve and the high liquid level sensor, a time range is preset in the timer, and when the timer reaches the time range, the water replenishing valve is opened and the high liquid level sensor is closed.

The invention is further configured to: a method for treating secondary steam tail gas of a boiling pot comprises the following steps:

s1, opening the water inlet valve to inject water into the water seal tank through the water inlet pipe, and closing the water inlet valve when the high material level liquid level requirement is met;

s2, the central control end receives a boiling signal of the boiler, the boiler enters a low-pressure dynamic boiling process, the steam valve is closed, the exhaust valve is opened, and the secondary steam heat exchanger is started;

s3, starting a high liquid level sensor by the central control end;

s4, the boiling pot enters a normal pressure boiling state, the high liquid level sensor is closed, and the water replenishing valve is opened;

and S5, the central control end receives a signal of the boiling pot finishing boiling completely, the water replenishing valve is closed, the low liquid level sensor is opened, and the drain valve is opened.

The invention is further configured to: the step S3 specifically includes:

s31, the high liquid level sensor senses the liquid height in the water seal tank and feeds back the liquid height signal to the central control end;

s32, when the liquid height is lower than the high material level liquid level, the central control end controls the water replenishing valve to open, and water is injected into the water seal tank through the water replenishing pipe;

and S33, when the liquid height reaches the high material level liquid level, the central control end controls the water replenishing valve to close.

The invention is further configured to: the step S4 specifically includes the following steps:

s41, entering a low-pressure dynamic boiling state to start timing;

s42, timing to 40 minutes, closing the high liquid level sensor, and opening the water replenishing valve;

and S43, timing to 45 minutes, and closing the water replenishing valve.

The invention is further configured to: also comprises S6, the drain pipe discharges the liquid into the recovery water tank;

s60, the central control end judges the use times of the liquid;

s61, when the liquid is used more than or equal to twice, the liquid is discharged from the water discharge end of the recovered water;

and S62, when the liquid is used less than twice, reserving the liquid in the recovery water tank for waiting for the next use.

In conclusion, the invention has the following beneficial effects: on one hand, the flash steam of 101-103 ℃ generated in the boiling process is treated, and simultaneously the heat is converted. On the other hand, malt flavor generated by tail gas is treated in a water sealing mode by utilizing the process of the prison, the tail gas treated by the system is discharged into the atmosphere, complaints of surrounding people can be reduced, hot water at 75-80 ℃ after heat exchange returns to a hot water tank for brewing and feeding, heat energy utilization is saved, and the hot water is a heat energy collection point and can be popularized, installed and used.

Drawings

FIG. 1 is a process flow diagram of a tail gas treatment system;

FIG. 2 is a logic block diagram of a central control end;

FIG. 3 is a schematic diagram of the exhaust gas treatment process.

Reference numerals: 1. a boiling pot; 11. an exhaust pipe; 12. an exhaust valve; 2. a secondary steam heat exchanger; 21. a vapor outlet pipe; 22. a steam valve; 3. sealing the tank with water; 31. a water inlet device; 311. a water inlet pipe; 312. a water replenishing pipe; 313. a water inlet valve; 314. a water replenishing valve; 32. a drain pipe; 33. a drain valve; 34. a high liquid level sensor; 35. washing the balls; 4. a recovery water tank; 41. a water recovery pipe; 42. a water replenishing motor; 5. a central control end; 51. a low level sensor; 52. a timer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 3, in order to achieve the above object, the present invention provides the following technical solutions: a boiling pan secondary steam tail gas treatment system comprises a boiling pan 1 and an exhaust pipe 11, wherein the boiling pan 1 is sequentially connected with a secondary steam heat exchanger 2 and a water-sealed tank 3 through the exhaust pipe 11, the exhaust pipe 11 is provided with an exhaust valve 12, the exhaust valve 12 is arranged between the secondary steam heat exchanger 2 and the water-sealed tank 3, the secondary steam heat exchanger 2 is connected with a steam outlet pipe 21, and the steam outlet pipe 21 is provided with a steam valve 22;

the water seal tank 3 is connected with the water installations 31 that are used for water injection in to the water seal tank 3, and be used for the outside exhaust drain pipe 32 of water in the water seal tank 3, and be used for protecting the overflow pipe of 3 internal pressures of water seal tank, be provided with drain valve 33 on the drain pipe 32, be provided with the overflow valve in the overflow pipe, be provided with high liquid level inductor 34 in the water seal tank 3, high liquid level inductor 34 has preset high material level liquid level, high liquid level inductor 34 is connected the setting with 31 electricity of water installations, water installations 31 is to the water seal tank 3 internal water conveying when liquid is less than high material level liquid level in the water seal tank 3, water installations 31 stops to the water seal tank 3 internal water conveying when liquid reaches high material level liquid level in the water seal tank 3.

The water inlet device 31 comprises a water inlet pipe 311, a water replenishing pipe 312, a water inlet valve 313 arranged on the water inlet pipe 311 and a water replenishing valve 314 arranged on the water replenishing pipe 312, and the high liquid level sensor 34 is electrically connected with the water replenishing valve 314. The design of the double-pipe system is independent and orderly, and the system is independently controlled.

The design of the invention, the secondary steam heat exchanger 2 and the water seal tank 3 can be carried out singly or together, and the embodiment of starting together is specifically indicated as follows:

firstly, before purifying tail gas, a certain amount of water (meeting the liquid level requirement) is injected into a water seal tank 3 through a water inlet device 31, after a boiling signal of a boiling pot 1 is received, the boiling pot 1 enters a low-pressure dynamic boiling process, an exhaust valve 12 is opened, the tail gas enters the water seal tank 3 through a secondary steam heat exchanger 2 along with an exhaust pipe 11, at the moment, the secondary steam heat exchanger 2 uses brewed 25 ℃ condensed water to exchange heat with flash steam at 101-103 ℃, hot water at 75-80 ℃ returns to a hot water tank for brewing and feeding, and the utilization of heat energy is saved;

tail gas after the primary cooling enters into water seal tank 3, (this secondary steam heat exchanger 2's design also can the diversion protect the safety in the water seal tank 3, avoids in the tail gas of too high temperature gets into water seal tank 3, causes liquid temperature in the water seal tank 3 to rise very fast, and the liquid contains the tolerance and reduces, and the water seal effect weakens) this moment water seal tail gas, the subsidiary taste of tail gas will produce the exchange with the water seal. When the tail gas pressure of the water inlet sealed tank 3 is less than or equal to 200mmbar, the tail gas is exchanged with the water seal, when the tail gas pressure of the water inlet sealed tank 3 is greater than 200mmbar, the tail gas can discharge liquid from the overflow pipe, the safety in the water sealed tank 3 is ensured, the high liquid level sensor 34 triggers the water replenishing valve 314 to open, the water replenishing pipe 312 performs water replenishing operation to the water sealed tank 3 until the liquid in the water sealed tank 3 returns to the high material level liquid level, and the water replenishing valve 314 is closed, so that the water seal effect in the water sealed tank 3 is ensured to be lasting and efficient, when the boiling pot 1 is completely boiled, the water and the treated tail gas are discharged together through the drain pipe 32, the visible smoke can be greatly reduced through the tail gas discharged after the water seal equipment is treated, the taste in the tail gas can be removed, the air pollution is reduced, and the influence on.

It is more worth mentioning that the overflow valve belongs to an automatic valve, when the pressure in the water-sealed tank is higher than a set value, the overflow valve is opened, and when the pressure is reduced to be lower than the set value, the overflow valve is closed.

In conclusion, the invention has the advantages that: on one hand, the flash steam of 101-103 ℃ generated in the boiling process is treated, and simultaneously the heat is converted. On the other hand, malt flavor generated by tail gas is treated in a water sealing mode by utilizing the process of the prison, the tail gas treated by the system is discharged into the atmosphere, complaints of surrounding people can be reduced, hot water at 75-80 ℃ after heat exchange returns to a hot water tank for brewing and feeding, heat energy utilization is saved, and the hot water is a heat energy collection point and can be popularized, installed and used.

The inside top of water-sealed tank 3 is provided with washes ball 35, washes ball 35 and moisturizing pipe 312 intercommunication setting for the moisturizing sprays. The design of the wash bowl 35 has the advantage of a wide spray range, allowing both the cooling of the exhaust gas entering the water-sealed tank 3 and the removal of the odor associated with the shower exhaust gas.

The one end that drain pipe 32 kept away from water seal tank 3 is connected with recovery water tank 4, and recovery water tank 4 utilizes the end including recovery water entrance point and recovery water drainage end and recovery water, and the recovery water utilizes the end to be connected with water seal tank 3 through recovery water pipe 41, is provided with moisturizing motor 42 on the recovery water pipe 41.

When the boiler 1 is completely boiled, the drain valve 33 at the lower end of the water sealed tank 3 is opened, the liquid flows to the recovery water tank 4, and if the liquid is used for the first time, the liquid can be injected into the water sealed tank 3 again through the water replenishing motor 42 for secondary utilization, so that the resource utilization rate is improved, the production cost is reduced, and if the liquid is used for multiple times, the liquid can be directly discharged through the water recovery discharge end.

Still including central control end 5, be provided with low liquid level inductor 51 in the water sealed tank 3, low liquid level inductor 51 is connected with central control end 5 communication, shows the standby suggestion on the central control end 5 when low liquid level inductor 51 detects no liquid level in the water sealed tank 3.

The central control end 5 is connected with a timer 52, the timer 52 is respectively connected with the water replenishing valve 314 and the high liquid level sensor 34, the timer 52 presets a time range, and when the timer 52 reaches the time range, the water replenishing valve 314 is opened and the high liquid level sensor 34 is closed.

The general boiling process of the boiling pot 1 is 45 minutes, after the low pressure dynamic boiling of 40 minutes in the preceding period, in last 5 minutes, the boiling pot 1 enters the ordinary pressure boiling state, the tail gas pressure is great at this moment, wash ball 35 sprays and is in the open mode always in this stage time of acquiescence in the PID procedure, carry out continuous moisturizing to water seal tank 3, needn't worry at this moment that the water seal that the moisturizing leads to ceaselessly increases, when the liquid level of water seal tank 3 inside reachs and surpasss the overflow pipe height, unnecessary water level will be discharged through the system overflow pipe, guarantee the safe operation of boiling pot 1 with this.

This time the design of timer 52 can carry out above-mentioned switching automatically to close high level inductor 34, reduce the operating pressure of high level inductor 34, avoid high level inductor 34 to continue to trigger, cause the life-span to shorten.

A secondary steam tail gas treatment method for a boiling pan 1 comprises the following steps:

s1, opening the water inlet valve 313, injecting water into the water-sealed tank 3 through the water inlet pipe 311, and closing the water inlet valve 313 when the requirement of high material level liquid level is met;

s2, the central control end 5 receives a boiling signal of the boiler 1, the boiler 1 enters a low-pressure dynamic boiling process, the steam valve 22 is closed, the exhaust valve 12 is opened, and the secondary steam heat exchanger 2 is started;

s3, the central control end 5 starts the high liquid level sensor 34;

s4, when the boiling pot 1 enters a normal-pressure boiling state, the high liquid level sensor 34 is closed, and the water replenishing valve 314 is opened;

s5, the central control end 5 receives the signal that the boiling pot 1 is completely boiled, the water replenishing valve 314 is closed, the low liquid level sensor 51 is opened, and the drain valve 33 is opened.

Boil pot 1 and boil through having two processes, the low pressure developments of anterior segment are boiled, the ordinary pressure of back end is boiled, the atmospheric pressure that the ordinary pressure was boiled will be greater than the atmospheric pressure that the low pressure developments were boiled, in boiling the in-process, can be with discharge in the overflow pipe in the water sealed tank 3 when atmospheric pressure is too big, thereby guarantee holistic steady in the water sealed tank 3, after liquid level descends in the water sealed tank 3, for guaranteeing the water seal effect, carry out the moisturizing through moisturizing pipe 312, and boil the in-process at the ordinary pressure, water sealed tank 3 internal pressure lasts very greatly, it discharges from the overflow pipe to have liquid constantly, for guaranteeing inside water level stability, moisturizing valve 314 normally opens, last moisturizing, form the condition of moisturizing while drainage, and close high liquid level inductor 34, avoid high liquid level inductor 34 to continuously trigger the phenomenon that causes the life-span to shorten.

Step S3 specifically includes:

s31, the high liquid level sensor 34 senses the liquid height in the water-sealed tank 3 and feeds back the liquid height signal to the central control end 5;

s32, when the liquid height is lower than the high material level liquid level, the central control end 5 controls the water replenishing valve 314 to be opened, and water is injected into the water seal tank 3 through the water replenishing pipe 312;

and S33, when the liquid level reaches the high-level liquid level, the central control end 5 controls the water replenishing valve 314 to close.

Step S4 specifically includes the following steps:

s41, entering a low-pressure dynamic boiling state to start timing;

s42, timing to 40 minutes, closing the high liquid level sensor 34, and opening the water replenishing valve 314;

and S43, timing to 45 minutes, and closing the water replenishing valve 314. The boiling process of the boiler 1 is generally 45 minutes, and after the first 40 minutes of low-pressure dynamic boiling, the boiler 1 enters the normal-pressure boiling state in the last 5 minutes.

S6, the drainage pipe 32 discharges the liquid into the recovery water tank 4;

s60, the central control end 5 judges the liquid use times;

s61, when the liquid is used more than or equal to twice, the liquid is discharged from the water discharge end of the recovered water;

and S62, when the liquid is used less than twice, reserving the liquid in the recovery water tank 4 for waiting for the next use.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.