CN219442847U - Fresh air device and cleaning equipment - Google Patents

Abstract

The utility model belongs to the technical field of optical lens processing, and discloses a fresh air device and cleaning equipment. The new trend device is used for the exhaust gas in the equipment to discharge the workshop, includes: an air inlet assembly, a circulating assembly and an air exhaust assembly. The air inlet assembly is communicated with the equipment to continuously blow air into the equipment; the circulating assembly is respectively communicated with the equipment and the air inlet assembly so as to circularly guide part of waste gas in the equipment into the equipment through the air inlet assembly, so that the concentration of the waste gas in the equipment is increased; the exhaust assembly is respectively communicated with the circulation assembly and the workshop, and the exhaust assembly is used for exhausting the other part of waste gas in the circulation assembly out of the workshop. With this new trend device with the higher concentration exhaust gas discharge workshop in the equipment, realize discharging more waste gas in the short time to improve the utilization ratio of energy when new trend device operates, also can improve the recovery efficiency to waste gas simultaneously, and then reduce exhaust treatment's cost.

Description

Fresh air device and cleaning equipment

Technical Field

The utility model relates to the technical field of optical lens processing, in particular to a fresh air device and cleaning equipment.

Background

A polarizer is a constituent element of a liquid crystal display. The cleaning of the polarizer during the production process is a crucial processing step. The cleaning process is generally to spray out the solvent in the solvent tank, and clean the surface of the polaroid by using the solvent. The organic solvent is generally volatile as a cleaning agent, and when the organic solvent volatilizes outside the cleaning device, potential safety hazards are caused to operators, and cancers, fetal deformity and the like can be caused when the organic solvent is serious. Therefore, the cleaning device is required to be provided with an exhaust device when in use so as to discharge the waste gas into recovery equipment outside the workshop.

In the prior art, the cleaning device for cleaning the polaroid comprises a machine shell, wherein a wiping component formed by dust-free cloth and a spraying component used for spraying solvent are arranged in the machine shell. And spraying an organic solvent by using the spraying component, and wiping by using the wiping component to clean the polaroid. The exhaust equipment is arranged on the traditional cleaning equipment, and is mainly characterized in that a fan is arranged above a shell to send air in a workshop into the equipment, and exhaust gas is led out of the workshop by utilizing an exhaust pipe arranged on the equipment to finish exhaust of the exhaust gas.

The exhaust process directly leads out the waste gas in the equipment, and the concentration of the waste gas in the equipment is lower under the condition of continuous lead-out, so that more time and energy are consumed for completing the exhaust of the waste gas, the recovery efficiency of the waste gas is lower, and the treatment cost of the waste gas is too high. Meanwhile, a large amount of air in the workshop is consumed, so that the temperature and humidity in the workshop are changed, and the operation environment is unstable.

Disclosure of Invention

The utility model aims to provide a fresh air device and cleaning equipment, which solve the problems that the waste gas treatment cost is too high and a large amount of air in a workshop is required to be consumed, so that the workshop operation environment is unstable because the waste gas concentration is low, the waste gas discharged consumes more energy, and the waste gas recovery efficiency is low in the prior art when an organic solvent is used as a cleaning agent.

To achieve the purpose, the utility model adopts the following technical scheme:

in a first aspect, a fresh air device for exhausting waste gas in a plant out of a plant includes: an air inlet assembly, a circulating assembly and an air exhaust assembly. The air inlet assembly is communicated with the equipment to continuously blow air into the equipment; the circulating assembly is respectively communicated with the equipment and the air inlet assembly so as to circularly guide a part of waste gas in the equipment into the equipment through the air inlet assembly, so that the concentration of the waste gas in the equipment is increased; the exhaust assembly is respectively communicated with the circulation assembly and the workshop, and the exhaust assembly is used for exhausting the other part of waste gas in the circulation assembly out of the workshop.

Optionally, the air intake assembly includes: the air outlet of the air inlet machine is communicated with the inside of the equipment; and the air inlet pipe is respectively communicated with the air suction opening of the air inlet machine and the circulating assembly, and the air inlet machine sends part of partial waste gas in the circulating assembly into the equipment through the air inlet pipe.

Optionally, the air intake assembly includes: the filter layer is arranged at the air outlet of the air inlet machine so as to retain dust in the waste gas.

Optionally, the circulation assembly includes: a circulation pipe and a circulation fan; the circulating pipe is provided with a first end and a second end, the first end is communicated with the equipment, the second end is respectively communicated with the air inlet assembly and the air exhaust assembly, the circulating fan is arranged in the circulating pipe, and the circulating fan is used for extracting waste gas in the equipment; and/or the exhaust assembly comprises: exhaust pipe and exhaust fan, exhaust pipe one end with the air inlet subassembly reaches circulating assembly is connected, and the other end stretches out the workshop, the exhaust fan set up in order to discharge waste gas in the exhaust pipe the workshop.

Optionally, the power of the circulating fan is greater than the power of the air inlet assembly so as to maintain negative pressure in the equipment; and/or one end of the exhaust pipe extending out of the workshop is used for communicating with recovery equipment.

Optionally, the fresh air device further includes: the first regulating valve is arranged on the air inlet assembly to selectively conduct the air inlet assembly and the workshop; and/or a concentration detection member disposed within the apparatus to detect a concentration of exhaust gas within the apparatus; and/or a differential pressure gauge is arranged on the equipment and used for detecting the air pressure difference inside and outside the equipment.

Optionally, the fresh air device further includes: and the controller is respectively in communication connection with the differential pressure meter, the concentration detection piece, the air inlet assembly, the circulating assembly and the air exhaust assembly, and is configured to adjust the power of the air inlet assembly, the circulating assembly and the air exhaust assembly according to the concentration of the waste gas and/or the air pressure difference.

In a second aspect, a cleaning apparatus includes: a housing; the cleaning device is arranged in the shell and is used for cleaning the product; the feeding table is arranged in the shell to put products; and the fresh air device according to any one of the first aspects, an air inlet component of the fresh air device is communicated with the upper side of the machine shell, and a circulating component of the fresh air device is communicated with the lower side of the machine shell.

Optionally, an air duct which is respectively communicated with the circulating assembly and the casing is arranged in the feeding table; and/or the cleaning device further comprises: the branch pipe is positioned below the feeding table, one end of the branch pipe is communicated with the shell, and the other end of the branch pipe is communicated with the circulating assembly; and a second regulating valve provided to the branch pipe to selectively conduct the branch pipe.

Optionally, the cleaning device further comprises: the sealing cover is covered on the cleaning device and the feeding table and is respectively communicated with the air inlet assembly and the circulating assembly.

The utility model has the beneficial effects that:

according to the first aspect, the air inlet assembly and the circulation assembly are utilized, waste gas generated by the equipment in operation is partially circulated into the equipment so as to increase the concentration of the waste gas in the equipment, the other part of the waste gas is discharged out of the workshop through the air exhaust assembly, and the concentration of the waste gas discharged out of the workshop through the air exhaust assembly is gradually increased in the continuous operation process of the equipment. With this new trend device with the higher concentration exhaust gas discharge workshop in the equipment, realize discharging more waste gas in the short time to improve the utilization ratio of energy when new trend device operates, also can improve the recovery efficiency to waste gas simultaneously, and then reduce exhaust treatment's cost.

In the second aspect, the cleaning device can clean the product on the feeding table and simultaneously generate waste gas in the operation process, and the concentration of the waste gas in the machine shell is adjusted through the fresh air device, so that more waste gas can be discharged in unit time, the exhaust efficiency of the waste gas is improved, the recovery efficiency of the waste gas can be improved, and the treatment cost of the waste gas in the operation process of the cleaning device is effectively reduced.

Drawings

FIG. 1 is a schematic view of a cleaning apparatus and a fresh air device according to some embodiments of the present utility model;

FIG. 2 is a schematic flow chart of an exhaust method according to some embodiments of the utility model.

In the figure:

1. an air inlet assembly; 10. a wind inlet machine; 11. an air inlet pipe; 12. a fan housing; 13. a filter layer; 14. a first regulating valve; 2. a circulation assembly; 20. a circulation pipe; 21. a circulating fan; 3. an exhaust assembly; 30. an exhaust pipe; 31. an exhaust fan; 4. an apparatus; 40. a housing; 41. a cleaning device; 411. a cloth rolling mechanism; 412. dust-free cloth; 413. a cleaning head; 42. a feeding table; 421. a wind hole; 422. an air duct; 43. a branch pipe; 44. a second regulating valve; 5. a concentration detecting member.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The utility model provides a fresh air device and cleaning equipment. The cleaning device is used for cleaning the polaroid, and when the cleaning device uses an organic solvent as a cleaning liquid, more harmful gas, namely waste gas, is generated in the cleaning process. The fresh air device arranged on the cleaning equipment can adjust the concentration of the waste gas in the cleaning equipment by using the exhaust method, so that the exhaust concentration of the waste gas is changed, the exhaust amount of the waste gas in unit time can be increased, the recovery efficiency of the waste gas can be improved, and the treatment cost of the waste gas is effectively reduced. Simultaneously, the fresh air device can also form negative pressure in the cleaning equipment so as to reduce the possibility that waste gas enters a workshop.

Fresh air device

Referring to fig. 1, the fresh air device is used for exhausting waste gas in equipment 4 out of a workshop, and comprises an air inlet assembly 1, a circulating assembly 2 and an air exhaust assembly 3. The air inlet assembly 1 is communicated with the equipment 4 to continuously blow air into the equipment 4; the circulating assembly 2 is respectively communicated with the equipment 4 and the air inlet assembly 1 so as to circularly guide part of waste gas in the equipment 4 into the equipment 4 through the air inlet assembly 1, so that the concentration of the waste gas in the equipment 4 is increased; the exhaust assembly 3 is respectively communicated with the circulation assembly 2 and the outside of the workshop, and the exhaust assembly 3 is used for exhausting the other part of waste gas in the circulation assembly 2 out of the workshop.

Specifically, the air inlet assembly 1 can be arranged above the equipment 4, an opening is formed in the top of the equipment 4, the air inlet is communicated with the air outlet of the air inlet assembly 1, the air suction opening of the air inlet assembly 1 can be respectively communicated with the workshop and the circulating assembly 2, and a valve can be further arranged at the air suction opening of the air inlet assembly 1 to selectively conduct the air inlet assembly 1 and the workshop. The circulation assembly 2 can be arranged on the side surface of the equipment 4, one end of the circulation assembly is communicated with the bottom of the equipment 4 through a pipeline, and the other end of the circulation assembly is respectively communicated with the air inlet assembly 1 and the air exhaust assembly 3 through pipelines. The exhaust assembly 3 extends out of the workshop away from one end of the circulation assembly 2 and is in communication with a recovery device which is capable of treating the exhaust gas, for example, by burning the exhaust gas to generate heat, and further utilizing the heat.

When the fresh air device operates, part of waste gas generated by the equipment 4 during operation is circulated into the equipment 4 by the air inlet assembly 1 and the circulation assembly 2 so as to increase the concentration of the waste gas in the equipment 4, the other part of the waste gas is discharged out of the workshop through the air exhaust assembly 3, and the concentration of the waste gas discharged out of the workshop through the air exhaust assembly 3 is gradually increased in the continuous operation process of the equipment 4. With this new trend device with the higher concentration waste gas discharge workshop in the equipment 4, realize discharging more waste gas in the short time to improve the utilization ratio of energy when new trend device operates, also can improve the recovery efficiency to waste gas simultaneously, and then reduce exhaust treatment's cost. And the air inlet assembly 1 can reintroduce partial waste gas into the equipment 4, so that the air consumption of the air inlet assembly 1 in a workshop is reduced, and the influence of the fresh air device on the working environment in the workshop can be reduced.

In some embodiments of the present utility model, the air intake assembly 1 includes an air intake 10 and an air intake duct 11. The air outlet of the air inlet fan 10 is communicated with the inside of the equipment 4. The air inlet pipe 11 is respectively communicated with the air suction opening of the air inlet machine 10 and the circulating assembly 2, and the air inlet machine 10 sends part of waste gas in the circulating assembly 2 into the equipment 4 through the air inlet pipe 11.

Specifically, a fan housing 12 may be disposed on the upper portion of the device 4, where the fan housing 12 covers the opening on the top of the device 4, and the bottom wall of the fan housing 12 is open, and the side wall of the fan housing may be fixed to the top wall of the device 4 by welding or bonding. The air inlet Fan 10 is disposed in the Fan housing 12, and the air outlet of the air inlet Fan 10 faces the opening of the device 4, and the air inlet Fan 10 may adopt a Fan Filter Unit (FFU), which is specifically configured in the prior art, and will not be described herein. The air inlet pipe 11 extends along the horizontal direction and is arranged on the upper side of the fan housing 12, and the air inlet pipe and the fan housing are communicated through the air guide pipe. One end of the air inlet pipe 11 is communicated with the circulating assembly 2, and the other end of the air inlet pipe can be closed or communicated with the workshop.

When the air inlet assembly 1 is in operation, the air inlet machine 10 can continuously blow air into the equipment 4, so that waste gas in the equipment 4 gradually enters the circulating assembly 2, and part of the waste gas entering the circulating assembly 2 is pumped into the equipment 4 again by the air inlet machine 10 through the air inlet pipe 11, so that the concentration of the waste gas in the equipment 4 can be effectively increased. The air inlet machine 10 adopts a fan filtering group, which can perform a preliminary filtering effect on the sucked air, and reduce the possibility that impurities in the air enter the equipment 4.

In some embodiments of the utility model, the air intake assembly 1 includes a filter layer 13. The filter layer 13 is disposed at an air outlet of the air intake fan 10 to retain dust in the exhaust gas.

Specifically, a filter layer 13 is disposed at the position of the lower opening of the fan housing 12, which is opposite to the air outlet of the air intake 10, and the filtering precision thereof may be higher than that of the air intake 10 itself. By providing the filter layer 13, the exhaust gas entering the apparatus 4 is further filtered, thereby further reducing the possibility of impurities entering the apparatus 4.

In some embodiments of the present utility model, the circulation assembly 2 includes a circulation pipe 20 and a circulation fan 21. The circulation pipe 20 has a first end and a second end, the first end is communicated with the equipment 4, and the second end is respectively communicated with the air inlet assembly 1 and the air exhaust assembly 3. A circulation fan 21 is provided in the circulation pipe 20, the circulation fan 21 being for drawing off the exhaust gas in the apparatus 4.

Specifically, the circulation pipe 20 is provided at a side of the apparatus 4 and extends in a vertical direction, a lower end of the circulation pipe 20 is a first end which communicates with a lower side of the apparatus 4, and an upper end of the circulation pipe 20 is a second end which communicates with the air inlet pipe 11 and the air discharge assembly 3, respectively, through three-way valves. The circulating fan 21 is disposed in the circulating pipe 20, the air suction opening of the circulating fan 21 faces the first end, and the air discharge opening faces the second end.

When the circulation assembly 2 operates, the circulation fan 21 can pump out the waste gas in the equipment 4 through the circulation pipe 20 and respectively send the waste gas into the air inlet pipe 11 and the exhaust assembly 3 through the second end of the circulation pipe 20, so that a part of the waste gas can enter the fan housing 12 through the air inlet pipe 11 and be sent into the equipment 4 again through the air inlet fan 10, at the moment, the equipment 4 continuously operates, and waste gas can be continuously generated, and when the air inlet fan 10 sends part of the waste gas again, the concentration of the waste gas in the equipment 4 can be increased. While another part of the exhaust gas can be directly discharged out of the workshop through the exhaust assembly 3. With this continuous circulation, the concentration of the exhaust gas discharged from the exhaust assembly 3 increases.

In some embodiments of the present utility model, the exhaust assembly 3 includes an exhaust duct 30 and an exhaust fan 31. One end of the exhaust pipe 30 is connected with the air inlet assembly 1 and the circulating assembly 2, the other end of the exhaust pipe extends out of the workshop, and one end of the exhaust pipe 30 extending out of the workshop is used for being communicated with recovery equipment. The exhaust fan 31 is disposed in the exhaust duct 30 to exhaust the exhaust gas out of the workshop.

Specifically, one end of the exhaust pipe 30 is communicated with the circulation pipe 20 of the circulation assembly 2, the other end extends out of the workshop, a recovery device is arranged outside the workshop, and the recovery device can collect and store the exhaust gas exhausted by the exhaust pipe 30, and a combustion device can be arranged to burn the exhaust gas so as to utilize the heat generated by the combustion device. The type and function of the recovery device can be correspondingly adjusted according to different types of the waste gas, and the utility model is not limited to the type and function. The exhaust port of the exhaust fan 31 faces the circulation pipe 20, and the exhaust port faces the outside of the workshop, so that part of the exhaust gas in the circulation pipe 20 is smoothly exhausted out of the workshop.

When the exhaust assembly 3 is operated, the exhaust fan 31 can pump the exhaust gas flowing in the circulating pipe 20 into the exhaust pipe 30, and the exhaust pipe 30 is utilized to guide the exhaust gas into recovery equipment outside a workshop, so that the exhaust gas can be timely recovered and treated, the exhaust gas can be utilized for a second time, and the possibility of the exhaust gas discharging to the environment to pollute the environment can be reduced.

In some embodiments of the utility model, the power of the circulation fan 21 is greater than the power of the air intake assembly 1 so that a negative pressure is maintained within the apparatus 4. Specifically, if the draft of the circulation fan 21 is greater than that of the air intake 10, more air is drawn out of the apparatus 4 per unit time, so that the apparatus 4 is in a negative pressure state. At the same time, the amount of exhaust gas extracted by the circulating fan 21 in a unit time is smaller than the sum of the amount of exhaust gas generated in the equipment 4 and the amount of exhaust gas entering the equipment 4 through the air inlet fan 10, so that the concentration of the exhaust gas in the equipment 4 can be effectively increased. Under the condition that the equipment 4 cannot leak, the concentration of the waste gas is gradually increased, so that the safety of the equipment 4 is ensured, and the exhaust efficiency of the fresh air device is improved.

In some embodiments of the present utility model, the fresh air device further includes a first regulator valve 14. The first regulating valve 14 is disposed on the air intake assembly 1 to selectively connect the air intake assembly 1 with the workshop. The first regulating valve 14 is arranged at one end of the air inlet pipe 11 far away from the circulating assembly 2, and can adopt an electromagnetic valve, so that the communication degree between the air inlet machine 10 and a workshop is regulated when the air inlet assembly 1 operates, the air quantity in the workshop is conveniently regulated, the air quality in the workshop is reduced, and the possibility that the air inlet machine 10 interferes with the air quality in the workshop in the operation process is reduced.

In some embodiments of the utility model, the fresh air device further comprises a concentration detection member 5. A concentration detection member 5 is provided in the apparatus 4 to detect the concentration of exhaust gas in the apparatus 4. The concentration detection piece 5 can be located in the equipment 4 and is close to one side of circulating assembly 2, through detecting the exhaust gas concentration that gets into in the circulating assembly 2, just can confirm whether the exhaust gas concentration in the equipment 4 satisfies the demand, avoids appearing that exhaust gas concentration is too high to lead to equipment itself operation safety to go wrong, also can avoid exhaust gas concentration too low, leads to the condition that fresh air device's running cost risees.

In some embodiments of the utility model, the fresh air device further comprises a differential pressure gauge. A differential pressure gauge is provided at the device 4 for detecting the differential pressure of air inside and outside the device 4. One end of the differential pressure gauge is arranged in the equipment 4, and the other end of the differential pressure gauge is arranged outside the equipment 4 so as to detect the differential pressure conditions inside and outside the equipment 4 and ensure that the differential pressure inside and outside the equipment 4 is maintained in a certain range, so that waste gas in the equipment 4 can not diffuse outside the equipment 4, and the pressure in the equipment 4 can meet the requirement of cleaning products.

In some embodiments of the utility model, the fresh air device further comprises a controller. The controller is respectively in communication connection with the differential pressure meter, the concentration detection piece 5, the air inlet assembly 1, the circulating assembly 2 and the air exhaust assembly 3, and is configured to adjust the power of the air inlet assembly 1, the circulating assembly 2 and the air exhaust assembly 3 according to the concentration of waste gas and/or the air pressure difference.

Specifically, the differential pressure gauge and the concentration detecting member 5 may be in communication connection with the controller to transmit the detected concentration of the exhaust gas and the differential pressure of the air to the controller in real time, and the program and the structure set in the controller may correspondingly adjust the air intake assembly 1, the circulation assembly 2 and the air exhaust assembly 3 according to the transmitted data.

In one embodiment, in unit time, the air quantity which can be fed into the equipment 4 when the air inlet assembly 1 operates is set as A, and the concentration of the contained waste gas is set as A1; the air volume extracted from the equipment 4 by the circulating assembly 2 is B, and the concentration of the contained waste gas is B1; the air volume discharged by the air exhaust assembly 3 is C, the concentration of the contained waste gas is C1, the amount of the waste gas generated in the equipment 4 is D, and the pressure is P.

When the equipment 4 runs, exhaust gas is continuously generated, the air inlet assembly 1 injects air into the equipment 4 at the air quantity A, and the circulating assembly 2 pumps out the gas in the equipment 4 at the air quantity B, wherein the gas contains the exhaust gas with the concentration of B1. Part of the gas pumped out of the circulating assembly 2 enters the air inlet assembly 1 and then enters the equipment 4, and the other part of the gas enters the air exhaust assembly 3 and is discharged out of the workshop, namely, part of the waste gas pumped out of the circulating assembly 2 enters the air inlet assembly 1, and the other part of the waste gas enters the air exhaust assembly 3, namely, B1×B=A×A1+C×C1.

When the controller regulates and controls the power of the air inlet assembly 1, the circulating assembly 2 and the air exhaust assembly 3, the air inlet machine 10 of the air inlet assembly 1, the circulating fan 21 of the circulating assembly 2 and the air exhaust fan 31 of the air exhaust assembly 3 are all variable-frequency adjustable fans. When the circulating fan 21 and the air inlet machine 10 are started simultaneously, the air draft amount of the circulating fan 21 is larger than the air inlet amount of the air inlet machine 10, namely, A is ensured to be smaller than B, negative pressure can be formed in the equipment 4, and at the moment, P can be maintained between-1 Pa and-5 Pa.

When the amount of exhaust gas fed into the apparatus 4 by the air intake assembly 1 per unit time plus the amount of exhaust gas generated by the apparatus 4 itself is greater than the amount of exhaust gas extracted by the circulation assembly 2, i.e., axa1+d > B x B1, the concentration of exhaust gas in the apparatus 4 increases. Increasing the concentration in the apparatus 4 can thus be achieved by the controller increasing the power of the air intake 10 or decreasing the power of the circulation fan 21.

When the exhaust gas concentration in the device 4 needs to be reduced, the controller increases the power of the exhaust fan 31, so that the C1 is increased, the corresponding A1 is reduced to reduce the exhaust gas entering the device 4 through the air inlet fan 10, and meanwhile, the air quantity of the circulating fan 21 can be increased, so that B is further greater than a, and when b×b1 > a×a1+d, the exhaust gas concentration in the device 4 can be reduced. Or the first regulating valve 14 can be increased, so that the air entering the equipment through the air inlet fan 10 is increased, and the waste gas is correspondingly reduced, so that the concentration of the waste gas in the equipment 4 can be reduced, and the concentration in the equipment 4 is ensured to meet the operation requirement.

Exhaust method

Referring to fig. 2, the air exhausting method is to exhaust the apparatus 4 by the fresh air device in any of the above embodiments, and the air exhausting method includes:

step S1: while the apparatus 4 is running, the air intake assembly 1, the circulation assembly 2 and the air exhaust assembly 3 are started.

The operation of the device 4 means that the polaroid enters the device 4, and the organic solvent is used for cleaning the product. While the device 4 is in operation, exhaust gas is continuously generated within the device 4. While the equipment 4 is running, the air inlet assembly 1, the circulating assembly 2 and the air exhaust assembly 3 run synchronously, and exhaust gas in the equipment 4 is discharged out of the workshop in time.

Step S2: and acquiring the concentration of the exhaust gas in the equipment 4, when the concentration of the exhaust gas meets the preset condition, keeping the power of the air inlet assembly 1, the circulating assembly 2 and the exhaust assembly 3 constant, otherwise, adjusting the power of the air inlet assembly 1, the circulating assembly 2 and the exhaust assembly 3 to adjust the concentration of the exhaust gas in the equipment 4.

The preset conditions are set comprehensively by people after the cleaning requirements of products, the running efficiency of the fresh air device and the recovery efficiency of the waste gas are referred. The preset condition is mainly to judge the concentration of the waste gas in the equipment 4, the concentration of the waste gas cannot interfere with or even damage the cleaning operation of the polaroid, and meanwhile, in order to ensure the efficient operation of the fresh air device and the efficient recovery of the waste gas, the concentration of the waste gas in the equipment 4 is required to be at a relatively high level, at the moment, the maximum amount of the waste gas can be discharged by the fresh air device in unit time, and the recovery efficiency is also the highest. When the preset condition is not met, the air quantity of the air inlet assembly 1, the circulating assembly 2 and the air exhaust assembly 3 can be correspondingly adjusted by adjusting the power among the three, so that the concentration of the waste gas in the equipment 4 is changed.

Through above-mentioned step S1 and step S2, can correspond the waste gas concentration in the adjustment equipment 4 to discharge the waste gas that accords with the concentration requirement, thereby improve the discharge of waste gas in the unit time, both be favorable to improving the discharge efficiency of waste gas, also can improve the recovery efficiency to waste gas, so as to reduce the treatment cost to waste gas.

In some embodiments of the present utility model, when the exhaust gas concentration is less than the first concentration threshold and greater than the second concentration threshold, the exhaust gas concentration is determined to satisfy the preset condition.

The first concentration threshold value and the second concentration threshold value are both artificially set exhaust gas concentration reference values, and when the exhaust gas concentration is located at the first concentration threshold value and the second concentration threshold value, the operation efficiency of the fresh air device and the recovery efficiency of the exhaust gas are both optimal.

When the concentration of the waste gas is greater than the first concentration threshold, the concentration of the waste gas in the equipment 4 is higher, the cleaning operation of the polaroid is influenced, and the power of the exhaust assembly 3 is increased through the controller, so that the discharge amount of the waste gas is increased, the waste gas entering the equipment 4 through the air inlet fan 10 is reduced, the air quantity of the circulating fan 21 is increased, and the concentration in the equipment 4 can be reduced to ensure that the concentration in the equipment 4 meets the operation requirement.

When the concentration of the exhaust gas is smaller than the second concentration threshold, the concentration of the exhaust gas in the equipment 4 is lower, the operation efficiency of the fresh air device is lower, and the recovery efficiency of the exhaust gas is also lower, at this time, the power of the air inlet fan 10 is increased or the power of the circulating fan 21 is reduced by the controller, so that the concentration in the equipment 4 can be increased by adding the amount of the exhaust gas fed into the equipment 4 by the air inlet assembly 1 in unit time to the amount of the exhaust gas generated by the equipment 4 and being larger than the amount of the exhaust gas extracted by the circulating assembly 2.

Cleaning equipment

Referring to fig. 1, the cleaning apparatus includes a housing 40, a cleaning device 41, a loading table 42, and a fresh air device as in any of the above embodiments. A cleaning device 41 is provided in the housing 40 for cleaning the product. The loading platform 42 is disposed in the housing 40 for placing products. The air inlet component 1 of the fresh air device is communicated with the upper side of the machine shell 40, and the circulating component 2 of the fresh air device is communicated with the lower side of the machine shell 40.

Specifically, the top wall of the casing 40 is provided with an opening, and the air inlet component 1 of the fresh air device is correspondingly arranged on the top wall and covers the opening. The circulation assembly 2 is located at the side of the casing 40 and communicates with the bottom of the casing 40. The loading table 42 is disposed near the bottom of the casing 40, and the cleaning device 41 is disposed above the loading table 42. The cleaning apparatus includes a cloth rolling mechanism 411, a dust-free cloth 412, and a cleaning head 413. The dust-free cloth 412 is wound around the cloth winding mechanism 411 and the cleaning head 413. The cleaning head 413 is disposed opposite to the loading table 42. A plurality of polarizers may be simultaneously placed on the loading table 42, and a plurality of corresponding cleaning devices 41 may be also provided, and the specific number may be set according to the size of the casing 40, which is not limited by the present utility model. In one embodiment, two cleaning devices 41 are provided.

During operation of the cleaning device, the cleaning means 41 will clean the product on the loading table 42 and at the same time produce exhaust gases. The concentration of the waste gas in the casing 40 is regulated through the fresh air device, so that more waste gas is discharged in unit time, the exhaust efficiency of the waste gas is improved, the recovery efficiency of the waste gas can be improved, and the treatment cost of the waste gas in the operation process of the cleaning equipment is effectively reduced. It will be appreciated that the cleaning apparatus is one of the apparatuses 4 capable of mounting the fresh air device described above, which can also be used for gas venting when it is desired to process optical lenses with other types of cleaning apparatus or other processing equipment.

In some embodiments of the present utility model, an air duct 422 is disposed in the loading platform 42 and communicates with the circulation assembly 2 and the housing 40, respectively.

Specifically, the loading table 42 is provided with a plurality of air holes 421 on the top wall of the loading table 42, the air duct 422 is disposed inside the loading table 42 and is communicated with the plurality of air holes 421, and one end of the circulating air duct is communicated with the air duct 422. The diameter of the air holes 421 may be between 30 and 50cm, the number may be between 8 and 15, and the plurality of air holes 421 may be uniformly distributed on the loading table 42. When the product is cleaned, the waste gas can enter the air duct 422 through the air hole 421 and then enter the circulating pipe 20 through the air duct 422 so as to circulate or be discharged out of the workshop.

In some embodiments of the utility model, the cleaning device further comprises a branch 43 and a second regulating valve 44. The branch pipe 43 is located below the loading table 42, and one end of the branch pipe 43 is communicated with the casing 40, and the other end is communicated with the circulating assembly 2. A second regulating valve 44 is provided to the branch pipe 43 to selectively communicate the branch pipe 43.

Specifically, there is a gap between the loading table 42 and the inner wall of the casing 40, so that the exhaust gas is easily accumulated at the inner bottom of the casing 40 after being generated. Air holes are formed in the side face of the shell 40, and the diameter of the air holes can be between 100 cm and 200 cm. One end of the branch pipe 43 communicates with the air hole, and the other end communicates with the circulation pipe 20. The second regulating valve 44 can control the on or off of the branch pipe 43.

When the apparatus 4 is operated for a long period of time, the exhaust gas may accumulate at the bottom wall of the casing 40 while the exhaust gas is located under the loading table 42, so that it is difficult for the circulation assembly 2 to suck the exhaust gas at this location through the air holes 421 and the air passages 422 of the loading table 42. By providing the air holes and the branch pipes 43, the circulation assembly 2 can draw the exhaust gas at the position out of the casing 40 by using the second regulating valve 44 to conduct the branch pipes 43, so as to reduce the possibility of residual exhaust gas in the equipment 4.

Second embodiment

On the basis of the first embodiment, the difference between the present embodiment and the first embodiment is that the conduction mode of the cleaning device 41, the feeding table 42, the air intake assembly 1 and the circulation assembly 2 is different.

In some embodiments of the utility model, the cleaning apparatus further comprises a sealed enclosure. The sealing cover is covered on the cleaning device 41 and the feeding table 42, and is respectively communicated with the air inlet assembly 1 and the circulating assembly 2.

Specifically, a sealing cover is separately provided in the casing 40, and the cleaning device 41 and the loading table 42 are directly provided in the sealing cover, so that the sealing cover is opened when the blanking or the loading is required, and the sealing cover is maintained in a sealing state when the cleaning operation is started. An air inlet is arranged at the upper end of the sealing cover and is communicated with the air inlet device, an air outlet is arranged at the lower side of the sealing cover, and the circulating assembly 2 is communicated with the air outlet.

Therefore, when the cleaning operation is performed, only the exhaust gas is generated in the sealing cover, the exhaust gas cannot diffuse into the shell 40, and the possibility of exhaust gas leakage is effectively reduced. When the air inlet assembly 1 and the circulating assembly 2 are started, the air inlet assembly 1 directly blows air into the sealing cover, and the air in the sealing cover can be discharged out of the sealing cover and the machine shell 40 through the circulating assembly 2, so that the waste gas can be smoothly discharged out of the workshop.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a new trend device, its characterized in that, new trend device is used for discharging the waste gas in equipment (4) to the workshop, includes:

an air inlet assembly (1) communicated with the equipment (4) for continuously blowing air into the equipment (4);

the circulating assembly (2) is respectively communicated with the equipment (4) and the air inlet assembly (1) so as to circularly guide a part of waste gas in the equipment (4) into the equipment (4) through the air inlet assembly (1) to increase the concentration of the waste gas in the equipment (4); and

and the exhaust assembly (3) is respectively communicated with the circulation assembly (2) and the workshop, and the exhaust assembly (3) is used for exhausting the other part of waste gas in the circulation assembly (2) out of the workshop.

2. Fresh air device according to claim 1, characterized in that the air intake assembly (1) comprises:

the air inlet machine (10), the air outlet of the air inlet machine (10) is communicated with the inside of the equipment (4);

the air inlet pipe (11) is respectively communicated with an air suction opening of the air inlet machine (10) and the circulating assembly (2), and the air inlet machine (10) sends part of waste gas in the circulating assembly (2) into the equipment (4) through the air inlet pipe (11).

3. Fresh air device according to claim 2, characterized in that the air intake assembly (1) comprises:

the filter layer (13) is arranged at the air outlet of the air inlet fan (10) so as to retain dust in the waste gas.

4. Fresh air device according to claim 1, characterized in that the circulation assembly (2) comprises: a circulation pipe (20) and a circulation fan (21); the circulating pipe (20) is provided with a first end and a second end, the first end is communicated with the equipment (4), the second end is respectively communicated with the air inlet assembly (1) and the air exhaust assembly (3), the circulating fan (21) is arranged in the circulating pipe (20), and the circulating fan (21) is used for extracting waste gas in the equipment (4); and/or

The exhaust assembly (3) comprises: an exhaust pipe (30) and an exhaust fan (31); one end of the exhaust pipe (30) is connected with the air inlet assembly (1) and the circulating assembly (2), the other end of the exhaust pipe extends out of the workshop, and the exhaust fan (31) is arranged in the exhaust pipe (30) to exhaust waste gas out of the workshop.

5. Fresh air device according to claim 4, characterized in that the power of the circulation fan (21) is greater than the power of the air intake assembly (1) so that a negative pressure is maintained inside the apparatus (4); and/or

One end of the exhaust pipe (30) extends out of the workshop to be communicated with recovery equipment.

6. The fresh air device of any one of claims 1 to 5, further comprising:

the first regulating valve (14) is arranged on the air inlet assembly (1) to selectively conduct the air inlet assembly (1) and the workshop; and/or

A concentration detection member (5) provided in the apparatus (4) to detect the concentration of exhaust gas in the apparatus (4); and/or

And the differential pressure meter is arranged on the equipment (4) and used for detecting the air pressure difference inside and outside the equipment (4).

7. The fresh air device of claim 6, further comprising:

the controller is in communication connection with the differential pressure meter, the concentration detection piece (5), the air inlet assembly (1), the circulating assembly (2) and the air exhaust assembly (3) respectively, and the controller is configured to adjust the power of the air inlet assembly (1), the circulating assembly (2) and the air exhaust assembly (3) according to the concentration of waste gas and/or the air pressure difference.

8. A cleaning apparatus, comprising:

a housing (40);

a cleaning device (41) arranged in the casing (40) for cleaning the product;

the feeding table (42) is arranged in the shell (40) to put products; and

the fresh air device according to any one of claims 1 to 7, wherein the air intake assembly (1) of the fresh air device is in communication with an upper side of the housing (40), and the circulation assembly (2) of the fresh air device is in communication with a lower side of the housing (40).

9. The cleaning device according to claim 8, characterized in that an air duct (422) which is respectively communicated with the circulating assembly (2) and the inside of the casing (40) is arranged in the feeding table (42); and/or

The cleaning apparatus further comprises:

a branch pipe (43) positioned below the feeding table (42), wherein one end of the branch pipe (43) is communicated with the shell (40), and the other end of the branch pipe is communicated with the circulating assembly (2); and

and a second regulating valve (44) provided to the branch pipe (43) to selectively communicate the branch pipe (43).

10. The cleaning apparatus of claim 8, further comprising:

the sealing cover is arranged on the cleaning device (41) and the feeding table (42) in a covering mode and is respectively communicated with the air inlet assembly (1) and the circulating assembly (2).