CN215901241U - Blowdown indicating device in flue gas integrated treatment - Google Patents
Blowdown indicating device in flue gas integrated treatment Download PDFInfo
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- CN215901241U CN215901241U CN202121593586.9U CN202121593586U CN215901241U CN 215901241 U CN215901241 U CN 215901241U CN 202121593586 U CN202121593586 U CN 202121593586U CN 215901241 U CN215901241 U CN 215901241U
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Abstract
The utility model provides a blowdown indicating device in comprehensive flue gas treatment, which comprises a first flue gas cleaning device, wherein the first flue gas cleaning device is provided with a primary heat exchanger and is a first primary heat exchanger, a first primary switch valve is arranged on the water body output end of the first primary heat exchanger, and a first primary valve feedback device is arranged on the first primary switch valve; the utility model improves the quality of the flue gas discharged into the atmosphere, keeps the minimum influence on the original equipment process and technical parameters, and avoids the safety risk when an operator checks whether the blowoff valve is in place.
Description
Technical Field
The utility model relates to the technical field of flue gas treatment, in particular to a pollution discharge indicating device in flue gas comprehensive treatment.
Background
In order to improve the quality, safety and production environmental protection of cigarette products in China, cigarette production enterprises need to strictly control the release amount of main harmful ingredients in cigarette smoke while reducing the release amount of cigarette tar. Therefore, in order to meet the national requirements on environmental protection, improve the quality of the flue gas discharged into the atmosphere, keep the minimum influence on the original equipment process and technical parameters and achieve the purposes of energy conservation and environmental protection, a cigarette factory needs to be matched with a comprehensive flue gas treatment system.
The current flue gas comprehensive treatment system usually uses a water washing mode to treat flue gas, and the water washing mode is used for treating sewage in such a way that: before production, an operator needs to close the drain valve, opens the drain valve after production is finished, and inspects on a platform of the washing mode equipment every day to confirm whether the drain valve is in place, so that time and labor are wasted, and certain safety risks exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pollution discharge indicating device in comprehensive smoke treatment, which is used for solving the defects that in the prior art, smoke treatment equipment of a cigarette factory wastes time and labor during pollution discharge and has certain safety risk, and achieving the purpose of safe production.
The utility model provides a pollution discharge indicating device in comprehensive treatment of flue gas, which comprises:
the first flue gas cleaning device is used for cleaning flue gas discharged by the airflow type cut-tobacco drier and is provided with a primary heat exchanger which is a first primary heat exchanger, a first primary switch valve is arranged on the water body output end of the first primary heat exchanger, and a first primary valve feedback device is arranged on the first primary switch valve;
the second flue gas cleaning device is used for cleaning flue gas discharged by the combustion furnace, the second flue gas cleaning device is provided with two-stage heat exchangers which are arranged in the front and at the back, the two-stage heat exchangers are respectively a second one-stage heat exchanger and a second two-stage heat exchanger, the second one-stage heat exchanger and the water output end of the second two-stage heat exchanger are respectively provided with a second one-stage switch valve and a second two-stage switch valve, and the second one-stage switch valve and the second two-stage switch valve are respectively provided with a second one-stage valve feedback device and a second two-stage valve feedback device.
According to the pollution discharge indicating device in the comprehensive flue gas treatment provided by the utility model, a plurality of first primary switch valves arranged in parallel are arranged on the water output end of the first primary heat exchanger;
a plurality of second primary switch valves arranged in parallel are arranged on the water output end of the second primary heat exchanger;
and the water output end of the second secondary heat exchanger is provided with a plurality of second secondary switch valves which are arranged in parallel.
According to the pollution discharge indicating device in the comprehensive flue gas treatment provided by the utility model, a first primary valve feedback device is a mechanical valve limit switch or an induction valve limit switch;
the second-stage valve feedback device is a mechanical valve limit switch or an inductive valve limit switch;
the second-stage valve feedback device is a mechanical valve limit switch or an inductive valve limit switch.
According to the utility model, the blowdown indicating device in the comprehensive flue gas treatment further comprises:
the cooling tower is internally provided with a cooling mechanism, the output ends of the first flue gas cleaning device and the second flue gas cleaning device are communicated with the input end of the cooling tower, and the cooling tower is used for cooling a water body;
and the input end of the cooling water tank is communicated with the output end of the cooling tower, the input ends of the first flue gas cleaning device and the second flue gas cleaning device are communicated with the output end of the cooling water tank, and the cooling water tank is used for storing a water body.
According to the pollution discharge indicating device in the comprehensive flue gas treatment provided by the utility model, the cooling water tank is provided with a first pipeline, the first pipeline is communicated with the output end of the cooling tower, the first pipeline is provided with a water replenishing valve, the cooling water tank is provided with a first liquid level sensor and a second liquid level sensor, the first liquid level sensor and the second liquid level sensor are both positioned at the bottom of the first pipeline, the first liquid level sensor is positioned at the top of the second liquid level sensor, the detection position of the first liquid level sensor corresponds to the drainage level of the cooling water tank, and the detection position of the second liquid level sensor corresponds to the water replenishing level of the cooling water tank.
According to the utility model, the first flue gas cleaning device comprises:
the first smoke discharge mechanism is used for collecting smoke discharged by the airflow type cut tobacco dryer;
the gas input end of the first water washing tower is communicated with the output end of the first smoke discharge mechanism, and the water body input end of the first water washing tower is communicated with the output end of the cooling water tank and used for removing water-soluble impurities in smoke discharged by the airflow type cut-tobacco drier;
the input end of the first recirculating water pump is communicated with the water body output end of the first water washing tower and is used for pumping out the water body in the first water washing tower;
the water body input end of the first primary heat exchanger is communicated with the output end of the first recirculating water pump, and the water body output end of the first primary heat exchanger is communicated with the input end of the cooling tower and is used for transferring the heat of the water body pumped by the first recirculating water pump to other equipment;
a first fan, the input end of which is communicated with the byproduct output end of the first water scrubber and is used for discharging CO in the first water scrubber2A gas.
According to the utility model, the second flue gas cleaning device comprises:
the second flue gas discharge mechanism is used for collecting the flue gas discharged by the combustion furnace;
the gas input end of the first primary heat exchanger is communicated with the output end of the first smoke discharging mechanism and is used for transferring the heat of the smoke discharged by the first smoke discharging mechanism to other equipment;
the gas input end of the second water washing tower is communicated with the gas output end of the second primary heat exchanger, and the water body input end of the second water washing tower is communicated with the output end of the cooling water tank and used for removing water-soluble impurities in the flue gas discharged by the combustion furnace;
the input end of the second recirculating water pump is communicated with the water body output end of the second water washing tower and is used for pumping out the water body in the second water washing tower;
the water body input end of the second secondary heat exchanger is communicated with the output end of the second recirculating water pump, and the water body output end of the second secondary heat exchanger is communicated with the input end of the cooling tower and is used for transferring the heat of the water body pumped by the second recirculating water pump to other equipment;
a second fan, the input end of which is communicated with the byproduct output end of the second water scrubber and is used for discharging CO of the second water scrubber2A gas.
According to the pollution discharge indicating device in the comprehensive smoke treatment provided by the utility model, the second recirculating water pump comprises a first pump body and a second pump body which are connected in parallel.
According to the blowdown indicating device in the comprehensive flue gas treatment, the valve feedback devices are arranged on the corresponding blowdown valves arranged at the water output ends of the first flue gas cleaning device and the second flue gas cleaning device, namely the drainage pipeline, the valve feedback devices are used for feeding back the current opening and closing conditions of the drainage valve, the opening or closing position of the drainage valve is output as a signal of the opening and closing amount, and direct prompt is given to an operator, so that the operator does not need to check to confirm whether the blowdown valve is opened or closed in place, the time for the operator to check the drainage valve every day is saved, the working efficiency is improved, and the safety risk existing when the operator checks whether the blowdown valve is opened or closed in place is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for 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 some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view of a blowoff valve at a first flue gas cleaning device and a second flue gas cleaning device in a blowoff indicating device in the comprehensive flue gas treatment provided by the utility model;
FIG. 2 is a schematic structural diagram I of a pollution discharge indicating device in the comprehensive treatment of flue gas provided by the utility model;
FIG. 3 is a schematic structural diagram of a cooling water place in a pollution discharge indicating device in the comprehensive treatment of flue gas provided by the utility model;
FIG. 4 is a schematic structural diagram of a first flue gas cleaning device in a pollution discharge indicating device in the comprehensive treatment of flue gas provided by the utility model;
FIG. 5 is a schematic structural diagram of a second flue gas cleaning device in the integrated flue gas treatment pollution discharge indicating device provided by the utility model;
FIG. 6 is a schematic structural diagram II of a pollution discharge indicating device in the comprehensive treatment of flue gas provided by the utility model.
Reference numerals:
10: a cooling tower; 20: a cooling water tank; 21: a first pipeline; 22: a water replenishing valve;
27: a first liquid level sensor; 28: a second liquid level sensor; e 1: draining the water level;
e 2: supplementing water level; 30: a first flue gas cleaning device; 31: a first primary heat exchanger;
311: a first primary switching valve; 312: a first primary valve feedback device;
32: a first recirculation water pump; 33: a first water wash column; 34: a first fan;
35: a first flue gas discharge mechanism; 40: a second flue gas cleaning device;
41: a second secondary heat exchanger; 411: a second secondary switching valve;
412: a second stage valve feedback device; 42: a second recirculating water pump;
421: a first pump body; 422: a second pump body; 43: a second water wash column;
44: a second fan; 45: a second flue gas discharge mechanism; 46: a second primary heat exchanger;
461: a second primary switching valve; 462: and a second stage valve feedback device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The emission indicator in the integrated flue gas treatment according to the present invention will be described with reference to fig. 1, and the emission indicator in the integrated flue gas treatment includes:
the first flue gas cleaning device 30 is used for cleaning flue gas discharged by the airflow type cut-tobacco dryer, the first flue gas cleaning device 30 is provided with a first-stage heat exchanger which is a first-stage heat exchanger 31, a first-stage switch valve 311 is arranged on the water output end of the first-stage heat exchanger 31, and a first-stage valve feedback device 312 is arranged on the first-stage switch valve 311.
The second flue gas cleaning device 40 is used for cleaning flue gas discharged by the combustion furnace, the second flue gas cleaning device 40 is provided with two stages of heat exchangers arranged in front and back, namely a second first-stage heat exchanger 46 and a second-stage heat exchanger 41, the water output ends of the second first-stage heat exchanger 46 and the second-stage heat exchanger 41 are respectively provided with a second first-stage switch valve 461 and a second-stage switch valve 411, and the second first-stage switch valve 461 and the second-stage switch valve 411 are respectively provided with a second first-stage valve feedback device 462 and a second-stage valve feedback device 412.
Through the water output end for first flue gas cleaning device 30 and second flue gas cleaning device 40 be the corresponding valve feedback device on the blowoff valve that sets up on the drainage pipe, utilize valve feedback device to go the current switch condition of feedback drain valve, with the signal output of the volume of opening or closing position with the switch of drain valve, and give the direct suggestion of operative employee, the operative employee need not to inspect again and confirm whether the blowoff valve switch targets in place, the time of operative employee inspection drain valve every day has been saved, the work efficiency is improved, the safety risk who exists when the operative employee inspection blowoff valve targets in place has been avoided simultaneously.
In this embodiment, a plurality of first primary switch valves 311 arranged in parallel are disposed on the water output end of the first primary heat exchanger 31, a plurality of second primary switch valves 461 arranged in parallel are disposed on the water output end of the second primary heat exchanger 46, and a plurality of second secondary switch valves 411 arranged in parallel are disposed on the water output end of the second secondary heat exchanger 41. That is, the first primary switching valve 311, the second primary switching valve 461 and the second secondary switching valve 411 are all provided in plurality, so that the efficiency of sewage disposal is improved.
In this embodiment, the first primary valve feedback device 312 is a mechanical valve limit switch or an inductive valve limit switch, the second primary valve feedback device 462 is a mechanical valve limit switch or an inductive valve limit switch, and the second secondary valve feedback device 412 is a mechanical valve limit switch or an inductive valve limit switch.
The pollution discharge indicating device in the integrated flue gas treatment of the utility model is described below with reference to fig. 2, and the pollution discharge indicating device in the integrated flue gas treatment further comprises:
cooling tower 10 is equipped with cooling body in, and first flue gas belt cleaning device 30 and second flue gas belt cleaning device 40's output all communicates with cooling tower 10's input, and cooling tower 10 is used for cooling the water, and in this embodiment, the cooling body that sets up in cooling tower 10 is air-cooled mechanism.
And the input end of the cooling water tank 20 is communicated with the output end of the cooling tower 10, the input ends of the first flue gas cleaning device 30 and the second flue gas cleaning device 40 are both communicated with the output end of the cooling water tank 20, and the cooling water tank 20 is used for storing water.
In this embodiment, the installation position of the cooling tower 10 in the circulation cooling system is located at the top of the installation position of the cooling water tank 20, it should be noted that a corresponding valve body is arranged at the output end of the cooling tower 10, the valve body at the output end of the cooling tower 10 is opened, and water cooled in the cooling tower 10 and within a preset cooling threshold temperature flows into the cooling water tank 20 under the action of its own gravity, and is stored in the cooling water tank 20.
The output end of the first flue gas cleaning device 30 is communicated with the input end of the cooling tower 10, and the input end thereof is communicated with the output end of the cooling water tank 20, so as to clean the flue gas discharged by the airflow type cut-tobacco drier.
The air flow drying technology is a processing method for drying tobacco shreds widely adopted in China at present. The leaf shred drying equipment is generally hot air flow high-temperature tubular equipment processed by the German HAUNI company, namely an HDT airflow type shred drying machine. The waste gas discharged by the HDT airflow type cut tobacco dryer used in the current cigarette factory contains a large amount of organic volatile substances, the main components of the substances comprise hydrocarbon, alcohol, aldehyde, phenol, ketone, ester, amine, amino and aromatic derivatives, and the like, and the substances belong to the category of malodorous pollutants, bring great influence on the life, physical and mental health of surrounding residents and easily cause complaints of the surrounding residents.
And the output end of the second flue gas cleaning device 40 is communicated with the input end of the cooling tower 10, and the input end of the second flue gas cleaning device is communicated with the output end of the cooling water tank 20, and is used for cleaning the flue gas discharged by the combustion furnace.
The combustion furnace is one of expanded cut tobacco manufacturing equipment, high-temperature process gas is used for rapidly expanding dry ice cut tobacco, the expanded cut tobacco is separated from the process gas, smoke attached to the separated cut tobacco is pumped into the combustion furnace for burning, and smoke dust contained in the smoke gas generates waste gas after burning in the combustion furnace. Moreover, the combustion furnace is a main device for heating and flue gas treatment, dust and peculiar smell can be carried when the furnace gas of the combustion furnace is directly discharged, the temperature of the discharged furnace gas is high, and the atmosphere pollution can be caused when the furnace gas is directly discharged. Meanwhile, in the production process of the expanded cut tobacco, moisture-discharging gas can be generated, the moisture-discharging gas contains smoke and granular impurities, the moisture-discharging gas has peculiar smell, and if the moisture-discharging gas is directly discharged, the atmosphere pollution can be caused.
In the device for indicating pollution discharge in the comprehensive flue gas treatment, the cooling water tank 20 is used for supplying water to the water washing towers of the first flue gas cleaning device 30 and the second flue gas cleaning device 40, which are main devices for cleaning flue gas, and replenishing water to the water washing towers of the first flue gas cleaning device 30 and the second flue gas cleaning device 40, the water washing towers can be used for removing solid particulate matters such as dust in the flue gas, and simultaneously can dissolve and absorb tar and peculiar smell in the flue gas, water in the water washing towers reaches a saturated state after absorbing a certain amount of water-soluble impurities, saturated water in the water washing towers must be discharged and clean water is replaced to ensure that the impurities are further removed, or a circulating water supply system of the water washing towers is established, so that the water washing towers can complete the cleaning of the flue gas.
After the washing towers in the first flue gas cleaning device 30 and the second flue gas cleaning device 40 remove impurities in flue gas, in order to ensure a continuous cleaning effect, water bodies in the washing towers in the first flue gas cleaning device 30 and the second flue gas cleaning device 40 need to be replaced in time, after the water bodies in the washing towers are pumped out by the water pumps for recycling in the first flue gas cleaning device 30 and the second flue gas cleaning device 40 and conveyed to the heat exchangers corresponding to the first flue gas cleaning device 30 and the second flue gas cleaning device 40, the heat exchangers recover heat of the water bodies, and softened water is heated by utilizing the heat. And then the water flows back to the cooling tower 10, after the cooling tower 10 cools the water body, the temperature of the water body is reduced to the preset cooling threshold temperature, the water body in the cooling tower 10 flows back to the cooling water tank 20 and then is supplied to the first flue gas cleaning device 30 and the second flue gas cleaning device 40 again, and a water washing tower circulating water supply system and a circulating cooling system of the pollution discharge indicating device in the comprehensive flue gas treatment are formed.
The pollution discharge indicating device in the comprehensive flue gas treatment of the utility model respectively cleans and purifies the flue gas discharged by a combustion furnace and a pneumatic cut-tobacco drier through the first flue gas cleaning device 30 and the second flue gas cleaning device 40, the first flue gas cleaning device 30 and the second flue gas cleaning device 40 are two mutually independent systems, share one set of cooling system, reduce the discharge of solid particulate matter impurities such as dust in the flue gas in a water washing mode, and simultaneously dissolve and absorb tar and peculiar smell in the flue gas. In addition, the heat of the flue gas is recovered, and the heat is utilized to heat softened water, so that the method meets the requirements of the state on environmental protection, improves the quality of the flue gas discharged into the atmosphere, keeps the minimum influence on the process and technical parameters of the original equipment, and achieves the purposes of energy conservation and environmental protection.
The blowdown indicating device in the comprehensive flue gas treatment of the utility model is described below with reference to fig. 3, a first pipeline 21 is arranged on the cooling water tank 20, the first pipeline 21 is communicated with the output end of the cooling tower 10, a water replenishing valve 22 is arranged on the first pipeline 21, a first liquid level sensor 27 and a second liquid level sensor 28 are arranged on the cooling water tank 20, the first liquid level sensor 27 and the second liquid level sensor 28 are both located at the bottom of the first pipeline 21, the first liquid level sensor 27 is located at the top of the second liquid level sensor 28, the detection position of the first liquid level sensor 27 corresponds to the drain level e1 of the cooling water tank 20, and the detection position of the second liquid level sensor 28 corresponds to the water replenishing level e2 of the cooling water tank 20.
In the normal use state of the cooling water tank 20, when the liquid level in the cooling water tank 20 is below the liquid level of the water replenishment level e2, the water replenishing valve 22 on the first pipeline 21 is opened, the cooling tower 10 replenishes the cooling water tank 20, after the cooling tower 10 continuously supplies water to the cooling water tank 20, the liquid level in the cooling water tank 20 is continuously raised, when the liquid level in the cooling water tank 20 reaches the drain level e1, the water replenishing valve 22 on the first pipeline 21 is closed, the connection between the cooling tower 10 and the cooling water tank 20 is cut off, since the cooling water tank 20 also supplies water to the first flue gas cleaning device 30 and the second flue gas cleaning device 40, the liquid level in the cooling water tank 20 drops again, when the liquid level drops to the water supplementing level e2 and is lower than the water supplementing level e2, the water supplementing valve 22 on the first pipeline 21 is opened again, the cooling tower 10 supplements water for the cooling water tank 20, and the operation is repeated in a circulating mode, so that the accurate and automatic control of the liquid level in the cooling water tank 20 is realized.
It should be noted that, in order to prevent the water pressure of the relevant cooling water tank 20 from being affected when the water replenishment valve 22 is opened or closed, in this embodiment, the water replenishment valve 22 is opened and closed by using an electromagnetic valve with a step function, so that the influence of the water replenishment valve 22 on the water pressure of the relevant pipeline when in use is reduced.
Referring to fig. 4, the blowdown indicating device of the integrated flue gas treatment of the present invention is described, and the first flue gas cleaning device 30 includes:
the first smoke discharging mechanism 35 is used for collecting smoke discharged by the airflow type cut-tobacco drier, and the smoke of the airflow type cut-tobacco drier mainly contains moisture. In this embodiment, the first flue gas discharging mechanism 35 is provided with moisture exhausting covers at the feeding vibration groove and the discharging vibration groove of the air-flow type cut-tobacco drier, and is used for collecting the excess moisture of the steam in the process pipeline during the production of the air-flow type cut-tobacco drier.
And the gas input end of the first water washing tower 33 is communicated with the output end of the first smoke discharging mechanism 35, and the water body input end of the first water washing tower is communicated with the output end of the cooling water tank 20, so that water-soluble impurities in smoke discharged by the airflow type cut-tobacco drier can be removed.
And an input end of the first recirculating water pump 32 is communicated with the water body output end of the first water washing tower 33, and is used for pumping out the water body in the first water washing tower 33.
The water input end of the first primary heat exchanger 31 is communicated with the output end of the first recirculation water pump 32, the water output end of the first primary heat exchanger 31 is communicated with the input end of the cooling tower 10, the first primary heat exchanger is used for transferring the heat of the water pumped by the first recirculation water pump 32 to other equipment, and meanwhile, the water used by the first primary heat exchanger 31 flows back to the cooling tower 10 for cooling treatment after the heat is recovered.
A first fan 34, the input end of which is communicated with the byproduct output end of the first water scrubber 33, the byproduct being CO2Gas for discharging CO of the first water washing tower 332A gas.
Referring to fig. 5, the pollution discharge indicating device in the integrated flue gas treatment of the present invention is described, and the second flue gas cleaning device 40 includes:
and the second flue gas discharge mechanism 45 is used for collecting the flue gas discharged by the combustion furnace.
And the gas input end of the second primary heat exchanger 46 is communicated with the output end of the second flue gas discharge mechanism 45, and is used for transferring the heat of the flue gas discharged by the second flue gas discharge mechanism 45 to other equipment.
And a gas input end of the second water washing tower 43 is communicated with a gas output end of the second primary heat exchanger 46, and a water body input end of the second water washing tower is communicated with an output end of the cooling water tank 20, so that water-soluble impurities in the flue gas discharged by the combustion furnace can be removed.
And an input end of the second recirculating water pump 42 is communicated with the water body output end of the second water washing tower 43, and is used for pumping out the water body inside the second water washing tower 43.
And a water body input end of the second secondary heat exchanger 41 is communicated with an output end of the second recirculating water pump 42, and a water body output end of the second secondary heat exchanger is communicated with an input end of the cooling tower 10, so that heat of the water body pumped out by the second recirculating water pump 42 is transferred to other equipment, and meanwhile, the water body used by the second secondary heat exchanger 41 can flow back to the cooling tower 10 after heat recovery for cooling treatment.
A second fan 44, the input end of which is communicated with the byproduct output end of the second water scrubber 43, the byproduct is CO2Gas for discharging CO of the second water washing tower 432A gas.
The first flue gas cleaning device 30 and the second flue gas cleaning device 40 are two mutually independent systems and share one set of circulating cooling system, and the difference between the two systems is that the second flue gas cleaning device 40 can be provided with two heat exchangers to recover the heat of gas and water, so that the utilization rate of waste heat is improved.
It should be noted that the water introduced into the second primary heat exchanger 46 is softened water, and the water introduced into the first primary heat exchanger 31 and the second primary heat exchanger 41 is process water.
In another case, the second recirculating water pump 42 includes a first pump 421 and a second pump 422 connected in parallel, and the first pump 421 and the second pump 422 are used by one, so that a problem of a single water pump during flue gas treatment of a combustion furnace is avoided, and normal cleaning of flue gas of the combustion furnace cannot be realized.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A blowdown indicating device in flue gas integrated process, its characterized in that includes:
the first flue gas cleaning device (30) is used for cleaning flue gas discharged by the airflow type cut-tobacco drier, the first flue gas cleaning device (30) is provided with a first-stage heat exchanger which is a first primary-stage heat exchanger (31), a first primary-stage switch valve (311) is arranged at the water body output end of the first primary-stage heat exchanger (31), and a first primary-stage valve feedback device (312) is arranged on the first primary-stage switch valve (311);
second flue gas belt cleaning device (40) for carry out cleaning treatment to the flue gas that the burning furnace discharged, second flue gas belt cleaning device (40) have the two-stage heat exchanger that sets up around, be second one-level heat exchanger (46) and second grade heat exchanger (41) respectively, second one-level heat exchanger (46) with be equipped with second one-level ooff valve (461) and second grade ooff valve (411) on the water output of second grade heat exchanger (41) respectively, second one-level ooff valve (461) with be equipped with second one-level valve feedback device (462) and second grade valve feedback device (412) on second grade ooff valve (411) respectively.
2. The indicating device for indicating pollution discharge in comprehensive flue gas treatment according to claim 1, wherein a plurality of first primary switch valves (311) arranged in parallel are arranged on the water output end of the first primary heat exchanger (31);
a plurality of second primary switch valves (461) arranged in parallel are arranged on the water body output end of the second primary heat exchanger (46);
and a plurality of second-stage switch valves (411) which are arranged in parallel are arranged on the water body output end of the second-stage heat exchanger (41).
3. The blowdown indicating device of claim 1, wherein the first primary valve feedback device (312) is a mechanical valve limit switch or an inductive valve limit switch;
the second-stage valve feedback device (462) is a mechanical valve limit switch or an induction valve limit switch;
the second stage valve feedback device (412) is a mechanical valve limit switch or an inductive valve limit switch.
4. The indicating device for indicating blowdown in integrated flue gas treatment according to claim 1, wherein the indicating device for indicating blowdown in integrated flue gas treatment further comprises:
the cooling tower (10) is internally provided with a cooling mechanism, the output ends of the first flue gas cleaning device (30) and the second flue gas cleaning device (40) are communicated with the input end of the cooling tower (10), and the cooling tower (10) is used for cooling a water body;
the input end of the cooling water tank (20) is communicated with the output end of the cooling tower (10), the input ends of the first flue gas cleaning device (30) and the second flue gas cleaning device (40) are communicated with the output end of the cooling water tank (20), and the cooling water tank (20) is used for storing water.
5. The indicating device for indicating pollution discharge in integrated flue gas treatment according to claim 4, a first pipeline (21) is arranged on the cooling water tank (20), the first pipeline (21) is communicated with the output end of the cooling tower (10), a water supplementing valve (22) is arranged on the first pipeline (21), a first liquid level sensor (27) and a second liquid level sensor (28) are arranged on the cooling water tank (20), the first level sensor (27) and the second level sensor (28) are both located at the bottom of the first pipe (21), and the first liquid level sensor (27) is positioned at the top of the second liquid level sensor (28), the detection position of the first liquid level sensor (27) corresponds to the liquid level of the drainage level (e1) of the cooling water tank (20), and the detection position of the second liquid level sensor (28) corresponds to the liquid level of the water replenishing level (e2) of the cooling water tank (20).
6. The blowdown indicating device of claim 5, wherein the first flue gas cleaning device (30) comprises:
the first smoke discharge mechanism (35) is used for collecting smoke discharged by the airflow type cut-tobacco drier;
the gas input end of the first water washing tower (33) is communicated with the output end of the first smoke discharging mechanism (35), and the water body input end of the first water washing tower is communicated with the output end of the cooling water tank (20) and is used for removing water-soluble impurities in smoke discharged by the airflow type cut-tobacco drier;
the input end of the first recirculating water pump (32) is communicated with the water body output end of the first water washing tower (33) and is used for pumping out the water body in the first water washing tower (33);
a first primary heat exchanger (31) having a water input in communication with an output of the first recirculating water pump (32) and a water output in communication with an input of the cooling tower (10);
a first fan (34) with an input end communicated with the byproduct output end of the first water scrubber (33) for discharging CO of the first water scrubber (33)2A gas.
7. The blowdown indicating device of claim 5, wherein the second flue gas cleaning device (40) comprises:
the second flue gas discharge mechanism (45) is used for collecting the flue gas discharged by the combustion furnace;
the gas input end of the second primary heat exchanger (46) is communicated with the output end of the second flue gas discharge mechanism (45);
a second water washing tower (43), the gas input end of which is communicated with the gas output end of the second primary heat exchanger (46), and the water body input end of which is communicated with the output end of the cooling water tank (20), and is used for removing water-soluble impurities in the flue gas discharged by the combustion furnace;
the input end of the second recirculating water pump (42) is communicated with the water body output end of the second water washing tower (43) and is used for pumping out the water body in the second water washing tower (43);
a second secondary heat exchanger (41) having a water input in communication with the output of the second recirculating water pump (42) and a water output in communication with the input of the cooling tower (10);
a second fan (44) with an input end communicated with the byproduct output end of the second water scrubber (43) for discharging CO of the second water scrubber (43)2A gas.
8. The blowdown indicating device of claim 7, wherein the second recirculating water pump (42) comprises a first pump body (421) and a second pump body (422) connected in parallel with each other.
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| CN202121593586.9U CN215901241U (en) | 2021-07-13 | 2021-07-13 | Blowdown indicating device in flue gas integrated treatment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121593586.9U CN215901241U (en) | 2021-07-13 | 2021-07-13 | Blowdown indicating device in flue gas integrated treatment |
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