A diesel generator set waste heat collection and tail gas treatment device and process flow

Abstract

The present invention relates to a waste heat collection and exhaust gas treatment device and a process flow for a diesel generator set in the field of generator sets. Each diesel generator set is provided with a heat dissipation device and an exhaust gas discharge device. A waste heat collection system and an exhaust gas treatment system are also provided next to the diesel generator set. The heat dissipation device is connected to the waste heat collection system, and the exhaust gas discharge device is connected to the exhaust gas treatment system. The waste heat collection system is installed in the next process of the exhaust gas treatment system and is communicated with the exhaust gas treatment system. The invention provides a system, which is used in conjunction with a large number of diesel generator sets, can simultaneously treat exhaust gas pollution and recover waste heat, reduce energy loss, and avoid environmental pollution. At the same time, a process is provided, through which the use efficiency of the equipment is improved, the overall cost is reduced, energy is saved, and the service life of the equipment is increased.

Description

Technical Field

[0001] The present invention relates to the field of power generation sets, and in particular to a waste heat collection and tail gas treatment device and a process flow. Background Art

[0002] During the daily use of diesel generator sets, the main emissions are PM particulate matter and NOx, while CO and HC emissions are relatively low. Controlling diesel engine exhaust emissions mainly controls the generation of particulate matter PM and NO, and reduces direct emissions of PM and NOx; compared with gasoline engines of the same power, diesel engines emit particulate matter and NOx as the two main pollutants; currently, countries around the world are committed to technical research on reducing diesel engine particulate emissions, and have made substantial progress; general diesel generator sets do not have exhaust treatment devices installed, or the installation does not play a big role; during the large-scale use of diesel generator sets, the exhaust needs to be treated, and this process requires an exhaust treatment device. At the same time, diesel generator sets also need to dissipate heat during operation, and the waste heat needs to be collected;

[0003] Waste heat refers to the sensible heat and latent heat that have not been reasonably utilized in the original design of energy-consuming devices of industrial enterprises that have been put into operation due to the limitations of historical, technological, and conceptual factors. It includes waste heat from high-temperature exhaust gas, waste heat from cooling media, waste heat from waste steam and waste water, waste heat from high-temperature products and slag, waste heat from chemical reactions, and waste heat from combustible exhaust gas, waste liquid, and waste materials. According to surveys, the total waste heat resources of various industries account for about 17% to 67% of their total fuel consumption, and recyclable waste heat resources account for about 60% of the total waste heat resources. In the operation of large quantities of generator sets, heat needs to be recovered and reused, which can save more energy. Summary of the invention

[0004] The purpose of the present invention is to provide a waste heat collection and exhaust gas treatment device for a diesel generator set. The present invention is used in conjunction with a large number of diesel generator sets, can simultaneously treat exhaust gas pollution and recover waste heat, reduce energy loss, and avoid environmental pollution.

[0005] When the present invention is applied, a waste heat collection and exhaust gas treatment device for a diesel generator set includes a plurality of groups of diesel generator sets, which are classified and arranged according to models; each group of diesel generator sets is equipped with a silent box, each group of diesel generator sets is equipped with a heat dissipation device and an exhaust gas emission device, and a waste heat collection system and an exhaust gas treatment system are also arranged next to the diesel generator set; the heat dissipation device is connected to the waste heat collection system, the exhaust gas emission device is connected to the exhaust gas treatment system, and the waste heat collection system is installed in the next process of the exhaust gas treatment system and communicated with the exhaust gas treatment system.

[0006] When the present invention is working, a plurality of diesel generator sets are started, the waste heat collection system and the exhaust gas treatment system are started, and the heat dissipation device and the exhaust gas discharge device are started; it is ensured that the exhaust gas enters the exhaust gas treatment system through the exhaust gas discharge device, and the hot air enters the waste heat collection system through the heat dissipation discharge device; the hot air enters the spoiler mechanism in the collection tank through the waste heat collection inlet pipe, and the spoiler plate arranged in a herringbone shape on the spoiler mechanism reduces the speed of the hot air flow and plays a role of spoiler; then cross-contacts with the heat exchanger in turn from the gap; a plurality of heat exchangers are arranged in sequence at intervals, and the heat in the hot air is fully contacted with each layer of heat exchanger after the spoiler, thereby improving the efficiency of heat exchange, and at the same time, heat exchange is carried out with the water in the circulating water tank through the heat exchanger, thereby heating the water in the circulating water tank, and finally transporting it to other places where it is needed; the hot air after waste heat recovery becomes normal temperature air, and the normal temperature air is drawn out from the waste heat collection outlet pipe. It has a certain flow rate, which is accelerated by the blowing of the exhaust gas inlet fan and finally mixed with the exhaust gas into the spray tower. At the same time, the normal temperature wind dilutes the harmful substances in the exhaust gas to improve the working efficiency of the spray tower; the normal temperature wind and the exhaust gas enter the interior of the spray tower together and are sprayed through several layers of spray mechanisms. Since the air intake direction and the atomization spray direction are relative, the contact area can be increased at this time to improve the efficiency of the contact treatment. The catalyst adding device also adds catalysts in real time to degrade more harmful substances; the sprayed exhaust gas enters the tower body of the adsorption tower through the intermediate exhaust gas connecting pipeline for drying and adsorption, and then passes through the lower medium adsorption layer, the middle electrostatic adsorption layer and the upper medium adsorption layer in turn; while drying the exhaust gas, electrostatic adsorption is performed to fully remove harmful substances; the exhaust gas finally discharged is accelerated by the exhaust gas outlet fan from the exhaust gas outlet pipeline at the end of the adsorption tower to avoid polluting the environment.

[0007] In a further embodiment, in order to ensure that each group of diesel generator sets can perform heat dissipation work; the heat dissipation device is provided with several groups, and each group of diesel generator sets is independently provided with a set of heat dissipation devices, and the waste heat collection system is cooperated with several groups of independently provided heat dissipation devices, and is provided with independent receiving pipes and collected into the total waste heat collection pipe.

[0008] In a further embodiment, in order to ensure that each group of diesel generator sets can normally perform waste heat collection work; the exhaust gas emission devices are also provided with several groups, and each group of diesel generator sets is independently provided with a set of exhaust gas emission devices. The exhaust gas treatment system is equipped with several groups of independently provided exhaust gas emission devices, and they are all provided with independent receiving pipes and collected into the total exhaust gas treatment pipe.

[0009] In a further embodiment, in order to ensure that the waste heat collection system can stably perform the waste heat collection work and quickly transfer the generated heat; the waste heat collection system includes a waste heat collection inlet pipe, a waste heat collection outlet pipe, a waste heat collection mechanism arranged between the waste heat collection inlet pipe and the waste heat collection outlet pipe, and a circulating water tank arranged under the waste heat collection mechanism; the waste heat collection mechanism is communicated with the circulating water tank.

[0010] In a further embodiment, in order to ensure that the heat exchanger in the collection tank body has high working efficiency and stable operation; the waste heat collection mechanism adopts a horizontal structure design, and the waste heat collection mechanism includes a collection tank body, and several groups of heat exchangers arranged in the collection tank body; the collection tank body is arranged in a circular shape, and the heat exchangers are arranged in three groups and are placed in the collection tank body in sequence; the width of the heat exchanger at the waste heat collection inlet pipe gradually widens to the width of the heat exchanger at the waste heat collection outlet pipe; the heat exchangers are all installed in a circulating water tank for heat exchange.

[0011] In a further embodiment, in order to ensure that the heat does not pass through the heat exchanger quickly and at the same time extend the residence time of the heat in the collection tank body; a spoiler mechanism is arranged between the waste heat collection inlet pipe in the collection tank body and the adjacent heat exchanger, and the spoiler mechanism includes a front hollow plate and a rear hollow plate, and a spoiler is arranged between the front hollow plate and the rear hollow plate. The spoilers are arranged in several groups and are staggered, and the spoilers between the front hollow plate and the rear hollow plate are arranged in a herringbone shape.

[0012] In a further embodiment, in order to ensure that the exhaust gas treatment system has high treatment efficiency and reliable and stable treatment, and to avoid the discharge of PM particulate matter and NOx in the exhaust gas; the exhaust gas treatment system includes a spray tower and an adsorption tower, an exhaust gas inlet pipeline arranged in conjunction with the spray tower, an exhaust gas outlet pipeline arranged at the end of the adsorption tower, and an intermediate exhaust gas connecting pipeline arranged between the spray tower and the adsorption tower; the exhaust gas inlet pipeline is provided with an exhaust gas inlet fan, and the exhaust gas outlet pipeline is provided with an exhaust gas outlet fan; an exhaust gas treatment water tank is also provided next to the spray tower, and the exhaust gas treatment water tank is provided with a catalyst adding device.

[0013] In a further embodiment, in order to ensure that the spray tower has high working efficiency and reliable operation, the spray tower is arranged longitudinally and is arranged as a top-in and bottom-out structure. Several layers of spray mechanisms are arranged inside the spray tower from top to bottom. The spray mechanism includes an upwardly arranged atomizing nozzle and a hollow plate arranged under the atomizing nozzle. Each layer of the spray mechanism is provided with an independent spray pipeline.

[0014] In a further embodiment, in order to ensure that the adsorption efficiency of the adsorption tower is high and the exhaust gas adsorption effect is reliable; the adsorption tower includes a longitudinally arranged tower body, the tower body adopts a bottom-in and top-out structure, and several adsorption layers are arranged inside the tower body, the adsorption layers include a lower medium adsorption layer, an upper medium adsorption layer and a middle electrostatic adsorption layer, and the length of the electrostatic adsorption layer is greater than that of the lower medium adsorption layer and the upper medium adsorption layer.

[0015] The beneficial effect of the present invention is that the present invention is used in conjunction with a large number of diesel generator sets, can simultaneously treat exhaust pollution and recover waste heat, reduce energy loss, and avoid environmental pollution.

[0016] Another object of the present invention is to provide a process, through which the use efficiency of equipment is improved, the overall cost is reduced, energy is saved, and the service life of the equipment is increased.

[0017] Another object of the present invention, when applied, comprises

[0018] Step 1: Start several diesel generator sets, start the waste heat collection system and exhaust gas treatment system, start the heat dissipation device and exhaust gas discharge device; ensure that the exhaust gas enters the exhaust gas treatment system through the exhaust gas discharge device, and the hot air enters the waste heat collection system through the heat dissipation device;

[0019] Step 2: The hot air enters the spoiler mechanism in the collection tank through the waste heat collection inlet pipe, and the spoiler plate arranged in a herringbone shape on the spoiler mechanism reduces the speed of the hot air flow and plays a spoiler role; and then cross-contacts with the heat exchanger from the gap in turn;

[0020] Step 3: Several heat exchangers are arranged in sequence, and the heat in the hot air is fully contacted with each layer of heat exchangers after turbulence, thereby improving the efficiency of heat exchange. At the same time, heat exchange is carried out with the water in the circulating water tank through the heat exchanger, thereby heating the water in the circulating water tank, and finally transporting it to other places where it is needed;

[0021] Step 4: After the waste heat is recovered, the hot air becomes normal temperature air, which is led out from the waste heat collection outlet pipe. Since it has a certain flow rate, it is blown by the exhaust gas inlet fan to speed up the flow rate and finally mix with the exhaust gas into the spray tower. At the same time, the normal temperature air dilutes the harmful substances in the exhaust gas, improving the working efficiency of the spray tower;

[0022] Step 5: Normal temperature air and tail gas enter the interior of the spray tower together and are sprayed through several layers of spray mechanisms. Since the air intake direction is opposite to the atomization spray direction, the contact area can be increased at this time, and the efficiency of the contact treatment can be improved. The catalyst adding device also adds in real time to degrade more harmful substances;

[0023] Step 6: The sprayed tail gas enters the tower body of the adsorption tower through the intermediate tail gas connecting pipeline for drying and adsorption, and then passes through the lower medium adsorption layer, the middle electrostatic adsorption layer and the upper medium adsorption layer in sequence; while drying the tail gas, electrostatic adsorption is performed to fully remove harmful substances;

[0024] Step 7: The exhaust gas is finally discharged from the exhaust gas outlet pipe at the end of the adsorption tower through the acceleration of the exhaust gas outlet fan to avoid polluting the environment.

[0025] Another purpose of the present invention is to start several diesel generator sets, start the waste heat collection system and the exhaust gas treatment system, start the heat dissipation device and the exhaust gas discharge device during operation; ensure that the exhaust gas enters the exhaust gas treatment system through the exhaust gas discharge device, and the hot air enters the waste heat collection system through the heat dissipation device; the hot air enters the spoiler mechanism in the collection tank through the waste heat collection inlet pipe, and the spoiler plate arranged in a herringbone shape on the spoiler mechanism reduces the speed of the hot air flow and plays a role in spoiler; then cross-contacts with the heat exchanger in turn from the gap; several heat exchangers are arranged in sequence at intervals, and the heat in the hot air is fully contacted with each layer of heat exchanger after spoiler flow, thereby improving the efficiency of heat exchange, and at the same time, heat exchange is carried out with the water in the circulating water tank through the heat exchanger, thereby heating the water in the circulating water tank, and finally transporting it to other places where it is needed; the hot air after waste heat recovery becomes normal temperature air, and the normal temperature air is led out from the waste heat collection outlet pipe , because it has a certain flow rate, the flow rate is accelerated by the blowing of the exhaust gas inlet fan and finally mixed with the exhaust gas into the spray tower. At the same time, the normal temperature wind dilutes the harmful substances in the exhaust gas, thereby improving the working efficiency of the spray tower; the normal temperature wind and the exhaust gas enter the interior of the spray tower together and are sprayed through several layers of spray mechanisms. Since the air intake direction is relative to the atomization spray direction, the contact area can be increased at this time, and the efficiency of the contact treatment can be improved. The catalyst adding device is also added in real time to degrade more harmful substances; the sprayed exhaust gas enters the tower body of the adsorption tower through the intermediate exhaust gas connecting pipeline for drying and adsorption, and then passes through the lower medium adsorption layer, the middle electrostatic adsorption layer and the upper medium adsorption layer in turn; while drying the exhaust gas, electrostatic adsorption is performed to fully remove harmful substances; the exhaust gas finally discharged is accelerated by the exhaust gas outlet fan from the exhaust gas outlet pipeline at the end of the adsorption tower to avoid polluting the environment.

[0026] Another beneficial effect of the present invention is that the process improves the utilization efficiency of equipment, reduces comprehensive costs, saves energy, and increases the service life of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings:

[0028] Figure 1 It is a system flow chart of the present invention.

[0029] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0030] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0031] Figure 4 for Figure 1 Enlarged view of center C.

[0032] Figure 5 for Figure 2 Enlarged view of point D in the middle.

[0033] Among them, 1 diesel generator set, 2 exhaust emission device, 3 heat dissipation emission device, 4 waste heat collection system, 5 exhaust treatment system, 6 total waste heat collection pipeline, 7 waste heat collection inlet pipeline, 8 collection tank, 9 heat exchanger, 10 circulating water tank, 11 waste heat collection outlet pipeline, 12 spoiler, 13 rear hollow plate, 14 exhaust gas inlet pipeline, 15 exhaust gas outlet pipeline, 16 intermediate exhaust gas connecting pipeline, 17 exhaust gas inlet fan, 18 exhaust gas treatment water tank, 19 catalyst adding device, 20 spray tower, 21 spray mechanism, 22 hollow plate, 23 upper medium adsorption layer, 24 intermediate electrostatic adsorption layer, 25 lower medium adsorption layer, 26 adsorption tower, 27 front hollow plate, 28 exhaust gas outlet fan. DETAILED DESCRIPTION Embodiment 1

[0034] like Figure 1-5As shown, when the present invention is applied, a waste heat collection and exhaust gas treatment device for a diesel generator set includes a plurality of groups of diesel generator sets 1, and the plurality of groups of diesel generator sets 1 are classified and arranged according to the model; each group of diesel generator sets 1 is equipped with a silent box, and each group of diesel generator sets 1 is equipped with a heat dissipation device 3 and an exhaust gas emission device 2, and a waste heat collection system 4 and an exhaust gas treatment system 5 are also arranged next to the diesel generator set 1; the heat dissipation device 3 is connected to the waste heat collection system 4, and the exhaust gas emission device 2 is connected to the exhaust gas treatment system 5, and the waste heat collection system 4 is installed in the next process of the exhaust gas treatment system 5 and communicated with the exhaust gas treatment system 5; the heat dissipation device 3 is provided with a plurality of groups, and each group of diesel generator sets 1 is independently provided with a set of heat dissipation device 3, the waste heat collection system 4 cooperates with several groups of independently provided heat dissipation devices 3 to be provided with independent receiving pipelines and collected into the total waste heat collection pipeline 6; the exhaust gas emission device 2 is also provided with several groups, each group of diesel generator sets 1 is independently provided with a set of exhaust gas emission device 2, the exhaust gas treatment system 5 cooperates with several groups of independently provided exhaust gas emission devices 2 to be provided with independent receiving pipelines and collected into the total exhaust gas treatment pipeline; the waste heat collection system 4 includes a waste heat collection inlet pipeline 7, a waste heat collection outlet pipeline 11, a waste heat collection mechanism arranged between the waste heat collection inlet pipeline 7 and the waste heat collection outlet pipeline 11, and cooperates with a circulating water tank 10 arranged below the waste heat collection mechanism; the waste heat collection The mechanism is communicated with the circulating water tank 10; the waste heat collection mechanism adopts a horizontal structure design, and the waste heat collection mechanism includes a collection tank body 8, and a plurality of groups of heat exchangers 9 arranged in the collection tank body 8; the collection tank body 8 is arranged in a circular shape, and the heat exchangers 9 are arranged in three groups and are placed in the collection tank body 8 in sequence; the width of the heat exchanger 9 at the waste heat collection inlet pipe 7 gradually widens to the width of the heat exchanger 9 at the waste heat collection outlet pipe 11; the heat exchangers 9 are all installed in the circulating water tank 10 for heat exchange; a spoiler mechanism is provided between the waste heat collection inlet pipe 7 in the collection tank body 8 and the adjacent heat exchanger 9, and the spoiler mechanism includes a front hollow plate 27 and a rear hollow plate 13, and the front hollow plate 27 and the rear hollow plate 13 are provided. A spoiler 12 is arranged between the hollow plates 13, and the spoiler 12 is arranged in several groups and staggered. The spoiler 12 between the front hollow plate 27 and the rear hollow plate 13 is arranged in a herringbone shape; the exhaust gas treatment system 5 includes a spray tower 20 and an adsorption tower 26, an exhaust gas inlet pipeline 14 arranged in conjunction with the spray tower 20, an exhaust gas outlet pipeline 15 arranged at the end of the adsorption tower 26, and an intermediate exhaust gas connecting pipeline 16 arranged between the spray tower 20 and the adsorption tower 26; the exhaust gas inlet pipeline 14 is provided with an exhaust gas inlet fan 17, and the exhaust gas outlet pipeline 15 is provided with an exhaust gas outlet fan 28; the spray tower 20 is also provided with an exhaust gas treatment water tank 18, and the exhaust gas treatment water tank 18 is provided with a catalyst adding device 19;The spray tower 20 is arranged longitudinally, and the spray tower 20 is arranged as a top-in and bottom-out structure. Several layers of spray mechanisms 21 are arranged from top to bottom inside the spray tower 20. The spray mechanisms 21 include an upwardly arranged atomizing nozzle and a hollow plate 22 arranged below the atomizing nozzle. Each layer of the spray mechanism 21 is provided with an independent spray pipeline; the adsorption tower 26 includes a longitudinally arranged tower body, and the tower body adopts a bottom-in and top-out structure. Several layers of adsorption layers are arranged inside the tower body, and the adsorption layers include a lower medium adsorption layer 25, an upper medium adsorption layer 23 and a middle electrostatic adsorption layer 24. The length of the electrostatic adsorption layer is greater than that of the lower medium adsorption layer 25 and the upper medium adsorption layer 23. ;

[0035] When the present invention is working, a plurality of diesel generator sets 1 are started, the waste heat collection system 4 and the exhaust gas treatment system 5 are started, and the heat dissipation device 3 and the exhaust gas discharge device 2 are started; it is ensured that the exhaust gas enters the exhaust gas treatment system 5 through the exhaust gas discharge device 2, and the hot air enters the waste heat collection system 4 through the heat dissipation discharge device 3; the hot air enters the spoiler mechanism in the collection tank 8 through the waste heat collection inlet pipe 7, and the spoiler plate 12 arranged in a herringbone shape on the spoiler mechanism reduces the speed of the hot air flow and plays a role of spoiler; and then cross-contacts with the heat exchanger 9 in turn from the gap; a plurality of heat exchangers 9 are arranged in sequence, and the heat in the hot air is fully contacted with each layer of the heat exchanger 9 after the spoiler, thereby improving the efficiency of the heat exchange, and at the same time, heat exchange is carried out with the water in the circulating water tank 10 through the heat exchanger 9, thereby heating the water in the circulating water tank 10, and finally transporting it to other places where it is needed; the hot air after the waste heat recovery becomes normal temperature air, and the normal temperature air is drawn out from the waste heat collection outlet pipe 11. There is a certain flow rate, and then the flow rate is accelerated by the blowing of the exhaust gas inlet fan 17, and finally mixed with the exhaust gas into the spray tower 20. At the same time, the room temperature wind dilutes the harmful substances in the exhaust gas, thereby improving the working efficiency of the spray tower 20; the room temperature wind and the exhaust gas enter the interior of the spray tower 20 together, and are sprayed through several layers of spray mechanisms 21. Since the air intake direction and the atomization spray direction are relative, the contact area can be increased at this time, and the efficiency of the contact treatment can be improved. The catalyst adding device 19 also performs real-time addition at the same time to degrade more harmful substances; the sprayed exhaust gas enters the tower body of the adsorption tower 26 through the intermediate exhaust gas connecting pipeline 16 for drying and adsorption, and then passes through the lower medium adsorption layer 25, the intermediate electrostatic adsorption layer 24 and the upper medium adsorption layer 23 in sequence; while drying the exhaust gas, electrostatic adsorption is performed to fully remove harmful substances; the exhaust gas finally discharged is accelerated by the exhaust gas outlet fan 28 from the exhaust gas outlet pipeline 15 at the end of the adsorption tower 26 to avoid polluting the environment.

[0036] Embodiment 2

[0037] Another object of the present invention, when applied, comprises

[0038] Step 1: Start a number of diesel generator sets 1, start the waste heat collection system 4 and the exhaust gas treatment system 5, start the heat dissipation device 3 and the exhaust gas discharge device 2; ensure that the exhaust gas enters the exhaust gas treatment system 5 through the exhaust gas discharge device 2, and the hot air enters the waste heat collection system 4 through the heat dissipation device 3;

[0039] Step 2: The hot air enters the spoiler mechanism in the collection tank 8 through the waste heat collection inlet pipe 7, and the spoiler plate 12 arranged in a herringbone shape on the spoiler mechanism reduces the speed of the hot air flow and plays a spoiler role; and then cross-contacts with the heat exchanger 9 in turn from the gap;

[0040] Step 3: Several heat exchangers 9 are arranged at intervals in sequence, and the heat in the hot air is fully contacted with each layer of heat exchangers 9 after turbulence, thereby improving the efficiency of heat exchange. At the same time, heat exchange is performed with the water in the circulating water tank 10 through the heat exchanger 9, thereby heating the water in the circulating water tank, and finally transporting it to other places where it is needed;

[0041] Step 4: The hot air after waste heat recovery becomes normal temperature air, which is drawn out from the waste heat collection outlet pipe 11. Since the normal temperature air has a certain flow rate, it is blown by the exhaust gas inlet fan 17 to accelerate the flow rate and finally mix with the exhaust gas into the spray tower 20. At the same time, the normal temperature air dilutes the harmful substances in the exhaust gas, thereby improving the working efficiency of the spray tower 20.

[0042] Step 5: Normal temperature wind and tail gas enter the interior of the spray tower 20 together, and are sprayed through several layers of spray mechanisms 21. Since the air intake direction and the atomization spray direction are opposite, the contact area can be increased at this time, and the efficiency of the contact treatment can be improved. The catalyst adding device 19 also adds in real time to degrade more harmful substances;

[0043] Step 6: The sprayed tail gas enters the tower body of the adsorption tower 26 through the intermediate tail gas connecting pipeline 16 for drying and adsorption, and then passes through the lower medium adsorption layer 25, the intermediate electrostatic adsorption layer 24 and the upper medium adsorption layer 23 in sequence; while the tail gas is being dried, electrostatic adsorption is performed to fully remove harmful substances;

[0044] Step 7: The exhaust gas finally discharged is accelerated by the exhaust gas outlet fan 28 and discharged from the exhaust gas outlet pipeline 15 at the end of the adsorption tower 26 to avoid polluting the environment.

[0045] Another object of the present invention is that when working, several diesel generator sets that need to work are started in sequence, the waste heat collection system 4 and the exhaust gas treatment system 5 are started, and the independent heat dissipation discharge device 3 and the exhaust gas discharge device 2 are started; ensure that the exhaust gas enters the exhaust gas treatment system 5 through the exhaust gas discharge device 2, and the hot air enters the waste heat collection system 4 through the heat dissipation discharge device 3; the hot air enters the spoiler mechanism in the collection tank 8 through the waste heat collection inlet pipe 7, and the spoiler 12 arranged in a herringbone shape on the spoiler mechanism reduces the speed of the hot air flow and plays a role of spoiler and speed reduction; the hot air then cross-contacts with the heat exchanger 9 in sequence from the gap; several heat exchangers 9 are arranged in sequence at intervals, and the heat in the hot air is fully contacted with each layer of heat exchanger 9 after the spoiler, thereby improving the efficiency of heat exchange, and at the same time, heat exchange is carried out with the water in the circulating water tank 10 through the heat exchanger 9, thereby heating the water in the circulating water tank, and finally transporting it to other places where it is needed; the hot air after waste heat recovery becomes normal temperature air, and the normal temperature air is discharged from the waste heat collection outlet pipe 1 1 is drawn out, and because it has a certain flow rate, it is further accelerated by the secondary blowing of the exhaust gas inlet fan 17 and finally mixed with the exhaust gas into the spray tower 20. At the same time, the normal temperature wind dilutes the harmful substances in the exhaust gas, thereby improving the working efficiency of the spray tower 20; the normal temperature wind and the exhaust gas enter the interior of the spray tower 20 together, and are sprayed through several layers of spray mechanisms 21. Since the air intake direction and the atomization spray direction are opposite, the contact area can be increased at this time, and the efficiency of the contact treatment can be improved. The catalyst adding device 19 also performs real-time addition at the same time to degrade more harmful substances; the sprayed exhaust gas enters the tower body of the adsorption tower 26 through the intermediate exhaust gas connecting pipeline 16 for drying and adsorption, and then passes through the lower medium adsorption layer 25, the intermediate electrostatic adsorption layer 24 and the upper medium adsorption layer 23 in sequence; while drying the exhaust gas, electrostatic adsorption is performed to fully remove harmful substances; the exhaust gas finally discharged is accelerated by the exhaust gas outlet fan 28 from the exhaust gas outlet pipeline 15 at the end of the adsorption tower 26 to avoid polluting the environment.

[0046] 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 embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A waste heat collection and exhaust gas treatment device for a diesel generator set, comprising a plurality of diesel generator sets, wherein the plurality of diesel generator sets are arranged according to the type; each diesel generator set is provided with a soundproof box, characterized in that: Each diesel generator set is equipped with a heat dissipation device and an exhaust gas discharge device. A waste heat collection system and an exhaust gas treatment system are also arranged next to the diesel generator set. The heat dissipation device is connected to the waste heat collection system, and the exhaust gas discharge device is connected to the exhaust gas treatment system. The waste heat collection system is installed in the previous process of the exhaust gas treatment system and communicates with the exhaust gas treatment system. The heat dissipation device is arranged in several groups, and each diesel generator set is independently equipped with a set of heat dissipation devices. The waste heat collection system is equipped with several groups of independently arranged heat dissipation devices, and each group is independently equipped with an independent receiving pipeline and collected into the total waste heat collection pipeline. The exhaust gas discharge device is also equipped with several Dry group, each diesel generator set is independently equipped with a set of exhaust gas emission devices, the exhaust gas treatment system is equipped with several groups of independently arranged exhaust gas emission devices, and each group is equipped with an independent receiving pipeline and collected into the total exhaust gas treatment pipeline; the waste heat collection system includes a waste heat collection inlet pipeline, a waste heat collection outlet pipeline, a waste heat collection mechanism arranged between the waste heat collection inlet pipeline and the waste heat collection outlet pipeline, and a circulating water tank arranged under the waste heat collection mechanism; the waste heat collection mechanism is connected with the circulating water tank; the waste heat collection mechanism adopts a horizontal structure design, and the waste heat collection mechanism includes a collection tank body, and several groups of heat exchangers arranged in the collection tank body; the collection tank body is arranged in a circular shape, The heat exchangers are provided in three groups and are placed in the collection tank body at intervals in sequence; the width of the heat exchanger at the waste heat collection inlet pipe gradually widens to the width of the heat exchanger at the waste heat collection outlet pipe; the heat exchangers are all installed in the circulating water tank for heat exchange; a spoiler mechanism is provided between the waste heat collection inlet pipe in the collection tank body and the adjacent heat exchanger, the spoiler mechanism includes a front hollow plate and a rear hollow plate, a spoiler is provided between the front hollow plate and the rear hollow plate, several groups of spoilers are provided and staggered, and the spoiler between the front hollow plate and the rear hollow plate is arranged in a herringbone shape; the exhaust gas treatment system includes a spray tower and an adsorption tower, which cooperates with the spray tower An exhaust gas inlet pipeline is provided, an exhaust gas outlet pipeline is provided at the end of the adsorption tower, and an intermediate exhaust gas connecting pipeline is provided between the spray tower and the adsorption tower; the exhaust gas inlet pipeline is provided with an exhaust gas inlet fan, and the exhaust gas outlet pipeline is provided with an exhaust gas outlet fan; an exhaust gas treatment water tank is also provided next to the spray tower, and the exhaust gas treatment water tank is provided with a catalyst adding device; the spray tower is provided longitudinally, and the spray tower is provided with an upper inlet and lower outlet structure, and several layers of spray mechanisms are provided inside the spray tower from top to bottom, and the spray mechanism includes an atomizing nozzle provided upward and a hollow plate provided below the atomizing nozzle, and each layer of the spray mechanism is provided with an independent spray pipeline;The adsorption tower comprises a tower body arranged longitudinally, the tower body adopts a bottom-in and top-out structure, and a plurality of adsorption layers are arranged inside the tower body, the adsorption layers comprise a lower medium adsorption layer, an upper medium adsorption layer and an intermediate electrostatic adsorption layer, and the length of the electrostatic adsorption layer is greater than that of the lower medium adsorption layer and the upper medium adsorption layer.

2. The process flow of a waste heat collection and tail gas treatment device for a diesel generator set according to claim 1 is characterized in that: include Step 1: Start several diesel generator sets, start the waste heat collection system and exhaust gas treatment system, start the heat dissipation device and exhaust gas discharge device; ensure that the exhaust gas enters the exhaust gas treatment system through the exhaust gas discharge device, and the hot air enters the waste heat collection system through the heat dissipation device; Step 2: The hot air enters the spoiler mechanism in the collection tank through the waste heat collection inlet pipe, and the spoiler plate arranged in a herringbone shape on the spoiler mechanism reduces the speed of the hot air flow and plays a spoiler role; and then cross-contacts with the heat exchanger from the gap in turn; Step 3: Several heat exchangers are arranged in sequence, and the heat in the hot air is fully contacted with each layer of heat exchangers after turbulence, thereby improving the efficiency of heat exchange. At the same time, heat exchange is carried out with the water in the circulating water tank through the heat exchanger, thereby heating the water in the circulating water tank, and finally transporting it to other places where it is needed; Step 4: After the waste heat is recovered, the hot air becomes normal temperature air, which is led out from the waste heat collection outlet pipe. Since it has a certain flow rate, it is blown by the exhaust gas inlet fan to speed up the flow rate and finally mix with the exhaust gas into the spray tower. At the same time, the normal temperature air dilutes the harmful substances in the exhaust gas, improving the working efficiency of the spray tower; Step 5: Normal temperature air and tail gas enter the interior of the spray tower together and are sprayed through several layers of spray mechanisms. Since the air intake direction is opposite to the atomization spray direction, the contact area can be increased at this time, and the efficiency of the contact treatment can be improved. The catalyst adding device also adds in real time to degrade more harmful substances; Step 6: The sprayed tail gas enters the tower body of the adsorption tower through the intermediate tail gas connecting pipeline for drying and adsorption, and then passes through the lower medium adsorption layer, the middle electrostatic adsorption layer and the upper medium adsorption layer in sequence; while drying the tail gas, electrostatic adsorption is performed to fully remove harmful substances; Step 7: The exhaust gas is finally discharged from the exhaust gas outlet pipe at the end of the adsorption tower through the acceleration of the exhaust gas outlet fan to avoid polluting the environment.

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