CN216320933U

CN216320933U - Exhaust gas treatment unit and coating machine exhaust gas treatment system using same

Info

Publication number: CN216320933U
Application number: CN202121768390.9U
Authority: CN
Inventors: 姚伟德; 陈玉龙; 汪龙明
Original assignee: Suzhou Zhaohe Huanneng Technology Co ltd
Current assignee: Suzhou Zhaohe Huanneng Technology Co ltd
Priority date: 2021-07-31
Filing date: 2021-07-31
Publication date: 2022-04-19
Anticipated expiration: 2031-07-31

Abstract

The utility model provides an exhaust gas treatment unit, which comprises a first module, a second module, a heat exchange part and a condensation part, wherein the first module and the second module are detachably assembled, the heat exchange part is arranged in the first module, and the condensation part is arranged in the second module.

Description

Exhaust gas treatment unit and coating machine exhaust gas treatment system using same

Technical Field

The utility model relates to the technical field of lithium battery manufacturing, in particular to a waste gas treatment unit and a coating machine waste gas treatment system.

Background

In the production process of the lithium battery, coating is a very important step, the device mainly applied in the step is a coating machine, an oven is taken as the most important part in the coating machine and comprises a plurality of oven units, each oven unit is communicated with one another into a whole, a coated substrate moves forwards in the oven in the same direction, and is continuously baked by high temperature in each oven unit in the advancing process and is dried. At present, in the coating and drying process of the lithium battery pole piece, in order to save space and improve production efficiency, manufacturers often set a plurality of continuous oven units into a multilayer structure so as to save limited production workshops.

In addition, the production of high-temperature waste gas is accompanied in the process of coating and drying the lithium battery pole piece, toxic and harmful substances in the high-temperature waste gas not only harm the health of human beings, but also influence the production safety, and if the toxic and harmful substances are directly discharged, the environment is polluted, and the energy waste is also caused. Therefore, waste gas generated in the coating process needs to be treated in the production of the lithium battery, and standard emission is realized.

The existing multilayer waste gas treatment generally adopts a centralized treatment mode, namely waste gas exhausted by all oven sections of each layer of coating line is collected to an exhaust main pipe, and is sent back to the oven of each layer through an air return main pipe after centralized treatment.

The current mode of centralized treatment of exhaust gas has the following problems:

1. the system pipeline and the corollary equipment are too large, so that a series of problems of difficult production and installation, large operation noise, high energy consumption, high maintenance cost and the like of the equipment are caused.

2. The system versatility is poor. Because different battery manufacturers have different numbers of ovens according to the design of the production line, the waste gas treatment amount needs to be determined according to the number of the ovens, different systems are designed in a targeted manner, and the system is not easy to change and flexible and has no universality.

3. The system is difficult to adjust. Because the waste gas treatment standards that every oven section will reach are different, redistribute to each oven section after handling waste gas through the mode that centralized processing system adjusted, be difficult to realize accurate control, cause unnecessary energy waste, also do not accord with the requirement of environmental protection production.

Further, CN210613276 discloses an energy-saving recycling device for NMP solvent, in the technical scheme of the patent, a heat exchanger, a condenser, a liquid blocking plate, a rotating wheel and the like are all arranged in a box body, in the actual production, the whole recycling device accommodating the components is as long as 4-5 m, the size is large, the weight of the recycling device reaches several tons, certain difficulty is brought to production and transportation, and after long-term use, the structure also has great obstruction in equipment maintenance and component replacement, and the requirement of high-quality and efficient production is not facilitated.

Meanwhile, as the air outlet flow and the air inlet flow are formed in the recovery device disclosed by the patent, the sealing and isolating performance of the whole space is greatly required, the requirement on the manufacturing process of the product is higher, and the cost is not favorably controlled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an exhaust gas treatment unit and a coating machine exhaust gas treatment system using the same.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides an exhaust gas treatment unit, which comprises a first module and a second module which are detachably assembled, wherein the first module comprises:

the first shell is provided with an air inlet, an air outlet and a first assembling port;

the heat exchange part is arranged in the first shell and comprises a high-temperature inlet and a low-temperature outlet which are communicated with each other, and a low-temperature inlet and a high-temperature outlet which are communicated with each other, the high-temperature inlet is communicated with the air inlet, and the high-temperature outlet is communicated with the air outlet;

the second module includes:

the first shell and the second shell are installed in a matched mode through the first assembling port and the second assembling port to achieve detachable connection;

the condensation portion, set up in the second casing, including condensation entry and condensation export, the condensation entry with low temperature export intercommunication, the condensation export with the low temperature entry is linked together, and waste gas certainly the low temperature export flows out and passes through the condensation entry flows in follow behind the condensation portion condensation the condensation export flows to the low temperature entry.

As a further improvement of the present invention, the condensing portion includes a condensing component and a fan component matched with the condensing component, the condensing component is disposed near the condensing inlet, and the fan component is disposed near the condensing outlet.

As a further improvement of the present invention, the fan assembly is a variable frequency fan, the variable frequency fan includes a volute, and the volute and the second housing are integrally formed.

As a further improvement of the present invention, the condensing assembly includes at least one condensing area, a coil pipe is wound in each condensing area, and a refrigerant filled in the coil pipe is a liquid refrigerant or a gas refrigerant or a combination of the liquid refrigerant and the gas refrigerant.

As a further improvement of the utility model, the condensation assembly further comprises a liquid storage part arranged on the lower side of the condensation area, and the second shell is provided with a liquid outlet communicated with the liquid storage part.

As a further improvement of the present invention, the exhaust gas treatment unit further includes a gas treatment portion disposed in the second housing, the condensation outlet and the low-temperature inlet are respectively connected to two ends of the gas treatment portion, and the exhaust gas flows out of the condensation outlet, is treated by the gas treatment portion, and then flows into the low-temperature inlet.

As a further improvement of the utility model, the gas processing part comprises a wind box and at least one wind distribution plate nested in the wind box.

As a further improvement of the utility model, the gas treatment section comprises a bellows and a filter nested within the bellows, the filter being disposed proximate the cryogenic inlet.

As a further improvement of the utility model, the second shell is also provided with an access opening matched with the gas treatment part.

As a further improvement of the present invention, the first housing is further provided with a waste gas outlet and a regeneration gas inlet, the waste gas outlet is communicated with the low temperature inlet, and the regeneration gas inlet is communicated with the high temperature inlet.

As a further improvement of the utility model, the first assembly opening and the second assembly opening are detachably connected through bolts, buckles, clamps or threads, and sealing structures are arranged at seams of the first assembly opening and the second assembly opening.

As a further improvement of the present invention, the unit further includes a third module, the third module is communicated with the condensation outlet and the low temperature inlet, and the third module is detachably connected to the first module and the second module, respectively.

As a further improvement of the utility model, a filter is arranged in the third module.

The utility model also provides an exhaust gas treatment unit, which comprises a shell, and a heat exchange part and a condensation part which are integrated in the shell and are communicated with each other, wherein the unit consists of a plurality of modules and forms detachable connection.

The utility model also provides a system for treating the waste gas of the coating machine, wherein the coating machine comprises one layer or at least two layers of coating ovens, each layer of coating ovens is provided with a plurality of oven units, each oven unit is provided with a waste gas outlet and a waste gas inlet, and the waste gas outlet and the waste gas inlet of each oven unit or at least every two adjacent oven units are respectively communicated with the gas inlet and the gas outlet of the waste gas treatment unit as claimed in any one of claims 1 to 9.

The utility model has the beneficial effects that: the waste gas treatment unit provided by the utility model adopts a modular structure, the whole unit comprises the first module and the second module which are detachably assembled, and the two modules are independently manufactured, so that the manufacturing process is simplified, the production and the installation are facilitated, the maintenance and the transportation are convenient, and the sealing performance is higher; meanwhile, the whole exhaust gas treatment circulation process realizes the purification, filtration and heat recovery and reutilization of the exhaust gas, and the recovery and reutilization of the waste liquid.

The coating machine waste gas treatment system provided by the utility model can realize modular control on the multilayer coating boxes at the same time, control the waste gas treatment amount according to needs, reduce the installation difficulty, shorten the construction period, facilitate maintenance, realize accurate control on each group of drying oven units and reduce the energy consumption of equipment operation.

Drawings

FIG. 1 is an assembly view of an exhaust treatment assembly according to an embodiment of the present invention;

FIG. 2 is a plan view of an exhaust gas treatment unit according to an embodiment of the present invention;

FIG. 3 is a detailed structural diagram of a condensing part in an exhaust gas treatment unit according to an embodiment of the present invention;

FIG. 4 is a schematic view of another embodiment of the exhaust treatment assembly of the present invention;

FIG. 5 is a block diagram of an exhaust gas treatment system of a coater according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments shown in the drawings. It should be noted that these embodiments are not intended to limit the present invention, and those skilled in the art should be able to make functional, methodical, or structural equivalents or substitutions according to these embodiments without departing from the scope of the present invention.

Meanwhile, in the present specification, descriptions related to orientations such as up, down, left, right, front, rear, inner, outer, longitudinal, lateral, vertical, horizontal, etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present specification, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "connected" are used broadly and may be, for example, fixedly, detachably, or integrally connected, mechanically or electrically connected, directly or indirectly connected through an intermediate medium, or communicated between two elements. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations, and the present invention should not be construed as being limited thereto.

Fig. 1 shows a preferred embodiment of the present invention, and the present invention provides an exhaust gas treatment assembly 1, wherein the exhaust gas treatment assembly 1 comprises a first module 10 and a second module 20 which are detachably assembled.

Specifically, the first module 10 includes a first casing 100 and a heat exchange portion 200 disposed in the first casing 100, the first casing 100 has an air inlet 110, an air outlet 120 and a first assembling port 130, in this embodiment, the first casing 100 is a rectangular parallelepiped structure, the air inlet 110 and the air outlet 120 are disposed on a left side wall, and the first assembling port 130 is disposed on a right side wall.

Referring to fig. 2, further, the heat exchange portion 200 includes a heat exchanger, the heat exchanger is cubic and is inclined at an angle of 45 degrees with the bottom surface of the first casing 100, and four sides corresponding to each two of the heat exchanger are respectively provided with a high temperature inlet 210, a low temperature inlet 220, a low temperature outlet 230 and a high temperature outlet 240, and each side is inclined with the inner surface of the first casing 100 connected thereto, wherein the high temperature inlet 210 and the low temperature outlet 230 are communicated with each other, the low temperature inlet 220 and the high temperature outlet 240 are communicated with each other, and the high temperature inlet 210 is communicated with the air inlet 110, and the high temperature outlet 240 is communicated with the air outlet 120; in the exhaust gas treatment process, after entering the high temperature inlet 210 from the inlet 110, the high temperature exhaust gas exchanges heat with the low temperature exhaust gas flowing in from the low temperature inlet 220, the low temperature exhaust gas generated after the heat exchange is discharged from the low temperature outlet 230, and the high temperature exhaust gas is communicated to the exhaust outlet 120 from the high temperature outlet 240. This design has practiced thrift the inner space of first casing 100 greatly, makes simultaneously that high temperature inlet 210, low temperature inlet 220, low temperature export 230 and high temperature export 240 correspond four sides and the internal surface of first casing 100 between form the gas accommodation space, provides the buffer for the waste gas that carries out the heat transfer. It should be understood that the heat exchanger and the arrangement thereof in the present embodiment are only preferred examples, and any conventional heat exchanger in the prior art, such as a plate heat exchanger, a shell-and-tube heat exchanger, a double-tube plate heat exchanger, a ceramic heat exchanger, a regenerative heat exchanger, etc., should be included in the protection scope of the claims.

The second module 20 includes a second housing 300 and a condensing portion 400 disposed in the second housing 300, the second housing 300 includes a second assembling port 310, in this embodiment, the second housing 300 is also configured as a rectangular parallelepiped structure, the second assembling port 310 is opened on a left side wall of the second housing 300, and other side walls of the second housing 300 are all hermetically connected to each other to ensure the tightness and stability of the flow of the exhaust gas therein. Meanwhile, the first assembling port 130 and the second assembling port 310 in this embodiment may be fixedly connected by any detachable manner, such as bolts, buckles, clips, or threads, which is conventional in the art, so as to achieve detachable connection between the first casing 100 and the second casing 300, and in order to meet the requirement of air tightness, a seam formed after the first assembling port 130 and the second assembling port 310 are connected is sealed by a sealing structure, which may be a sealing ring or a sealing gasket, or any other sealing structure in the art. In the utility model, the first shell 100 and the second shell 300 are independently manufactured and are arranged into a detachable and assembled modular structure, compared with the prior art, the manufacturing process is simplified, the production and the installation are facilitated, the maintenance and the transportation are facilitated, and the sealing performance is higher.

Further, as shown in fig. 2 and fig. 3, in the embodiment, the condensation portion 400 includes a condensation inlet 410 and a condensation outlet 420, the condensation inlet 410 is communicated with the low-temperature outlet 230, and the condensation portion 400 includes a condensation assembly 430 and a fan assembly 440 matched with the condensation assembly 430. Meanwhile, the condensing assembly 430 in this embodiment includes a first condensing area 431 and a second condensing area 432, which are adjacently disposed and are communicated with each other, wherein the first condensing area 431 is disposed near the condensing inlet 410 and is communicated with the condensing inlet 410, the second condensing area 432 is communicated with a fan assembly 440, and the fan assembly 440 guides the exhaust gas passing through the condensing assembly 430 out of the condensing outlet 420.

Specifically, in this embodiment, a first coil 433 is coiled in the first condensation area 431, cooling water is filled in the first coil 433, a second coil 434 is coiled in the second condensation area 432, chilled water is filled in the second coil 434, the first coil 433 and the second coil 434 are reasonably selected according to technological parameter requirements, and the temperature of the cooling water is higher than that of the chilled water. After the waste gas enters the first condensation area 431 from the condensation inlet 410, the waste gas is primarily condensed after contacting with the first coil 433 and then enters the second condensation area 432, after contacting with the second coil 434, the waste gas is condensed to be below a dew point, waste liquid in the waste gas is condensed and separated out, and the waste liquid is collected in a liquid collecting tank and then is discharged from a liquid discharging port; the condensed exhaust gas is discharged from the condensation outlet 420 under the guidance of the fan assembly 440.

Of course, in other embodiments of the present invention, the condensing assembly 430 may also have one or more condensing regions, such as a condensing region where the gas is condensed by directly expanding refrigerant into the coil; or the waste gas is condensed by the way that cooling water is matched with a direct expansion way to convey a refrigerant into the coil pipe for condensation. The refrigerant may be a liquid refrigerant or a gas refrigerant or a combination of the two, and it should be understood that, as a preferred embodiment of the present invention, the embodiment is only to perform condensation by using cooling water and chilled water in two condensation areas, and is not intended to limit the protection scope of the present invention in the condensation manner.

Further, the condensing assembly 430 further includes a liquid storage portion 435 disposed on the lower side of the condensing area for storing the liquid generated by condensing the exhaust gas, and the second housing 300 is provided with a liquid discharge port 320 communicated with the liquid storage portion 435, so that the condensate can be conveniently recycled.

Meanwhile, the fan assembly 440 in this embodiment is configured as a variable frequency fan, and the fan frequency can be changed according to the intake air volume of the waste gas treatment unit 1. And for the installation convenience of furthest reduce cost and promotion exhaust-gas treatment unit 1, set up the spiral case of fan and second casing 300 integrated into one piece in this embodiment, when having reduced whole equipment size, weight and cost, also improved the operating efficiency of fan to make fan noise obtain fine control, optimized the operational environment in workshop.

Further, in this embodiment, a gas processing portion 500 is further disposed in the second housing 300, the gas processing portion 500 is disposed above the condensing portion 400, the condensing outlet 420 and the low-temperature inlet 220 are respectively connected to two ends of the gas processing portion 500, and the condensed exhaust gas enters the gas processing portion 500 from the condensing outlet 420 through the flow guide plate 513 under the guidance of the blower. Specifically, the gas processing unit 500 includes a wind box 510, and at least one wind distribution plate 511 is nested in the wind box 510 in the present embodiment in consideration of the disordered wind direction of the exhaust gas flow guided by the fan, so that the exhaust gas flow passing through the wind distribution plate 511 flows through the filter at a uniform flow velocity with stable velocity distribution, thereby ensuring the filtering effect of the exhaust gas. .

Meanwhile, in order to reduce impurities in the gas introduced into the low-temperature inlet 220, a filter 512 is nested in the wind box 510, and the filter 512 is disposed near the low-temperature inlet 220 and can be used for filtering the gas rectified by the wind distribution plate 511. In addition, since the filter 512 is a consumable part and needs to be replaced frequently, the second housing 300 is further provided with an access opening 330 adapted to the position and size of the filter 512. It should be understood that the gas processing portion 500 should not be limited to the air distribution plate 511, the filter 512 or the combination thereof, and any component and combination thereof for rectifying and filtering the gas flow are also included in the scope of the present invention; in addition, the access opening 330 of the second housing 300 should not be understood as the access opening 330 dedicated to the filter 512, and any gas processing unit 500 disposed in the second housing 300 and requiring replacement may be correspondingly configured with the corresponding access opening 330.

In order to improve the reliability of the whole exhaust gas treatment unit 1, in this embodiment, an exhaust gas outlet 140 and a regeneration air inlet 150 are further formed on the first casing 100, the exhaust gas outlet 140 is communicated with the low temperature inlet 220, and the regeneration air inlet 150 is communicated with the high temperature inlet 210. When the air pressure in the waste gas treatment unit 1 needs to be maintained, the waste gas outlet 140 is opened, a part of the waste gas treated by the gas treatment part 500 is connected into the external rotating wheel device from the waste gas outlet 140 for further treatment, the treated waste gas reaching the emission standard can be discharged, and the waste gas which does not reach the emission standard enters the waste gas treatment unit 1 again through the regeneration air inlet 150 for treatment, so that the waste gas treatment capacity is further improved, the content of toxic and harmful gases is reduced, the standard emission of the waste gas is realized, and the requirement of safe production is met.

In the embodiment, the first module and the second module can be independently manufactured, and the two modules can be detachably mounted, so that modular production and assembly are realized, production and manufacturing are facilitated, maintenance and transportation are facilitated, and the sealing performance of the interior of a single module is facilitated through modular production.

Fig. 4 shows another embodiment of the present invention, which is substantially similar to the first embodiment, except that the second module in the first embodiment is further modularized, and the upper module and the lower module are separated into a third module 60, and the upper module and the lower module are formed as independent modules (it can be understood that the gas processing part in the first embodiment is separately formed into a detachable module), wherein the condensing assembly 430 and the fan assembly (not shown in fig. 4) are still arranged in the lower second module 20, the upper third module 60 comprises a third housing 61, the filter 512 and the wind distribution plate 511 are arranged in the third housing 61, and the third housing 61 is provided with an access opening 330 near the filter 512, in this embodiment, the fan assembly can also be arranged in the third housing 61; one end of the third module 60 close to the filter 512 is communicated with the low temperature inlet 220 of the heat exchange part 200 and is installed in cooperation with the upper part of the first assembling hole 130 of the first module 10 to form an air outlet channel; the other end of the third module 60 communicates with the condensation outlet 420 of the second module 20 at the lower side.

In this embodiment, one end (the second assembling port 310) of the second module 20 close to the condensation inlet 410 is installed to match with the lower portion of the first assembling port 130 of the first module 10, so as to form an air inlet channel. The second module 20 and the third module 60 are communicated through the opening 62, and the lower part of the first assembling port 130 of the first module 10 and the upper part of the second module 20 are both formed with fasteners or connecting bayonets, so that during assembly, the third module 60 and the second module 20 can be assembled first, and then the assembled whole and the first assembling port 130 of the first module 10 are subjected to butt assembly.

The modular structure provided by the utility model is not limited to the embodiment, the implementation mode of the utility model can be composed of two or three modules in the embodiment, or four or more modules, the utility model also does not limit the integration mode of each integrated component (such as a heat exchanger, a condensing device, a filter and the like), each component can be integrated independently, or can be integrated with other components to form a sub-module, each component forms an effective air inlet channel and an effective air outlet channel in the unit, the functions of heat exchange, condensation, filtration, exhaust and the like are achieved, the functions of waste gas purification, heat recovery and the like are achieved, the connection mode of multiple modules is detachable, and the sealing connection is formed through a sealing piece, so that the convenience of the whole industrial chain of product design, production, assembly, transportation and maintenance is achieved.

Further, in order to enable the waste gas treatment unit 1 to be more suitable for production, the utility model further provides a waste gas treatment system of the coating machine, the coating machine comprises one layer or at least two layers of coating ovens, each layer of coating oven is provided with a plurality of oven units, and each oven unit is provided with a waste gas outlet and a waste gas inlet.

Specifically, referring to fig. 5, the coating machine in this embodiment includes upper and lower two-layer coating ovens, one upper oven unit 30 in the upper oven and one lower oven unit 40 in the adjacent lower oven form an oven group and share one exhaust gas treatment unit 1, an exhaust gas outlet 31 of the upper oven unit 30 and an exhaust gas outlet 41 of the lower oven unit 40 are communicated to an air inlet 110 of the exhaust gas treatment unit 1, and an exhaust gas inlet 32 of the upper oven unit 30 and an exhaust gas inlet 42 of the lower oven unit 40 are communicated to an air outlet 120 of the exhaust gas treatment unit 1.

The specific treatment process of the waste gas treatment in this example is as follows:

s1, the high-temperature waste gas of the upper layer oven unit 30 and the high-temperature waste gas of the lower layer oven unit 40 enter the heat exchanger through the

waste gas outlets

31 and 32 from the gas inlet 110 respectively;

s2, discharging the waste gas cooled by the heat exchanger from the low-temperature outlet 230 to the condensation inlet 410, and allowing the waste gas to enter the condensation component 430 for further cooling;

s3, the waste gas sequentially passes through the first condensation area 431 and the second condensation area 432, the fan guides the condensed waste gas with the temperature lower than the dew point temperature to the gas treatment part 500 from the condensation outlet 420, and meanwhile, toxic and harmful substances in the waste gas are separated out in the first condensation area 431 and the second condensation area 432 in the form of condensate, stored in the liquid storage part 435 and discharged through the liquid discharge port 320;

s4, the waste gas of the gas processing part 500 is evenly conveyed to the filter 512 for filtering under the rectification of the air distribution plate 511;

and S5, the filtered exhaust gas enters the low-temperature inlet 220 of the heat exchanger, is output from the high-temperature outlet 240 after heat exchange is completed, and is sent back to the upper-layer oven unit 30 and the lower-layer oven unit 40 through the

exhaust gas inlets

32 and 42 respectively.

It is understood that the exhaust gas treatment system of the present invention is also applicable to a coater with a single-layer or three-layer or more ovens, and in other embodiments of the present invention, if the coater is provided with only a single-layer oven, a single oven unit or a plurality of adjacent oven units (for example, every two oven units or every three oven units) in the layer of ovens may be connected to the exhaust gas treatment unit 1 of the present invention for exhaust gas treatment according to actual production needs. If the coating machine is provided with three or more than three layers of drying ovens, the drying oven units of different levels can be combined and then connected with the waste gas treatment unit 1 provided by the utility model for waste gas treatment according to the actual production requirement.

For the exhaust gas treatment system proposed by the present invention, those skilled in the art can freely combine the ovens at different positions in the coater to cooperate with the exhaust gas treatment unit 1 proposed by the present invention according to the actual production needs, so as to meet different production requirements.

According to the coating machine waste gas treatment system provided by the utility model, the plurality of waste gas treatment units 1 are correspondingly connected to the oven units at different levels on the coating machine, so that the whole waste gas treatment circulation process realizes waste gas purification, filtration, heat recovery and reutilization and waste liquid recovery and reutilization, meanwhile, the multi-layer coating box is subjected to modular control, the waste gas treatment capacity can be controlled according to needs, the waste gas pipeline and matched equipment are miniaturized due to the modular design, in the installation process, the unit precision is improved, the installation difficulty is reduced, the construction period is shortened, in the operation and maintenance process, the single equipment is reduced, the noise is reduced, the equipment is convenient to maintain, the accurate control of each group of oven units can be realized, and the equipment operation energy consumption is reduced. Meanwhile, the whole waste gas treatment system is flexibly adjusted, production requirements can be met only by adjusting the treatment units corresponding to the oven sections, the scheme is strong in universality, the waste gas treatment units 1 with corresponding specifications and numbers are prepared according to the technological parameters of each oven section, and the influence caused by the number of the ovens does not need to be considered.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. An exhaust treatment assembly comprising first and second removably mounted modules, the first module comprising:

the second module includes:

2. The exhaust treatment assembly of claim 1, wherein the condensing portion includes a condensing element and a fan element coupled thereto, the condensing element being disposed proximate to the condensing inlet and the fan element being disposed proximate to the condensing outlet.

3. The exhaust treatment assembly of claim 2, wherein the fan assembly is a variable frequency fan, the variable frequency fan including a volute that is integrally formed with the second housing.

4. The exhaust treatment assembly of claim 2, wherein the fan assembly is a variable frequency fan, the variable frequency fan including a volute that is integrally formed with the second housing.

5. The exhaust treatment unit according to claim 4, wherein the condensing assembly further includes a liquid storage portion disposed at a lower side of the condensing region, and the second housing is provided with a liquid outlet communicated with the liquid storage portion.

6. The exhaust gas treatment unit of claim 1, further comprising a gas treatment unit disposed in the second housing, wherein the condensation outlet and the low-temperature inlet are connected to two ends of the gas treatment unit, respectively, and the exhaust gas flows out of the condensation outlet, is treated by the gas treatment unit, and then flows into the low-temperature inlet.

7. The exhaust treatment assembly of claim 6, wherein the gas treatment section comprises a bellows and at least one grid plate nested within the bellows.

8. The exhaust treatment assembly according to claim 6 or 7, wherein the gas treatment section comprises a bellows and a filter nested within the bellows, the filter being disposed proximate the cryogenic inlet.

9. The exhaust gas treatment unit of claim 6, wherein the second housing further defines an access opening for engaging the gas treatment section.

10. The exhaust gas treatment unit according to claim 1, wherein the first housing further defines an exhaust gas outlet and a regeneration inlet, the exhaust gas outlet is communicated with the low temperature inlet, and the regeneration inlet is communicated with the high temperature inlet.

11. The exhaust treatment unit of claim 1, wherein the first assembly port and the second assembly port are detachably connected by bolts, snaps, clamps or threads, and sealing structures are arranged at joints of the first assembly port and the second assembly port.

12. The exhaust gas treatment unit of claim 1, further comprising a third module, wherein the third module is in communication with the condensation outlet and the low temperature inlet, and the third module is detachably connected to the first module and the second module, respectively.

13. The exhaust treatment assembly of claim 12, wherein a filter is disposed within the third module.

14. The utility model provides an exhaust-gas treatment unit, its characterized in that, the unit includes the casing and is integrated in heat exchange portion and the condensation portion that communicate each other in the casing, wherein, the unit comprises a plurality of modules, forms detachable connection.

15. An exhaust gas treatment system of a coating machine, which is characterized in that the coating machine comprises one layer or at least two layers of coating ovens, each layer of coating ovens is provided with a plurality of oven units, each oven unit is provided with an exhaust gas outlet and an exhaust gas inlet, and the exhaust gas outlet and the exhaust gas inlet of each oven unit or at least every two adjacent oven units are respectively communicated with the air inlet and the air outlet of the exhaust gas treatment unit as claimed in any one of claims 1 to 14.