CN214278100U

CN214278100U - VOC volatile matter on-line monitoring system for PVC color film production

Info

Publication number: CN214278100U
Application number: CN202120235893.3U
Authority: CN
Inventors: 钱浩; 童飞; 田沉沉
Original assignee: Hangzhou Dyson New Material Co ltd
Current assignee: Hangzhou Dyson New Material Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-24
Anticipated expiration: 2031-01-28

Abstract

The utility model relates to a various membrane production of PVC is with VOC volatile substance on-line monitoring system, it includes the collection subassembly, collection subassembly intercommunication has detection subassembly, and the collection subassembly includes the acquisition head, gas-supply pipe and fan, and acquisition head one end and gas-supply pipe intercommunication, the one end and the fan intercommunication of acquisition head are kept away from to the gas-supply pipe, and the monitoring subassembly is located between acquisition head and the fan, and this application has the effect that improves the accuracy of detecting data.

Description

VOC volatile matter on-line monitoring system for PVC color film production

Technical Field

The application relates to the technical field of PVC color film production, in particular to a VOC volatile matter online monitoring system for PVC color film production.

Background

The PVC color film is a PVC film made of polyvinyl chloride serving as a raw material, and is formed by printing pictures and texts through a printing machine, the PVC color film can be used for decoration of walls, furniture, electric appliances and the like, has the effects of environmental protection, pollution prevention and color fixation and light texture, can generate certain volatile organic compounds in the production process of the PVC film, and can cause certain harm to human bodies and the environment when organic volatile matters reach certain concentration, so that VOC (volatile organic compounds) is necessary to be detected in the production process.

Most of the existing VOC detection is to bring the product after the production is finished to a laboratory for detection.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the test is carried out after the production is finished, a part of VOC is volatilized, and the finished product is detected, so that the detection result is inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to improve the accuracy of detected data, this application provides a various membrane production of PVC is with VOC volatile matter on-line monitoring system.

The application provides a various membrane production of PVC is with VOC volatile matter on-line monitoring system adopts following technical scheme: including gathering the subassembly, gather the subassembly intercommunication and have detection subassembly, gather the subassembly and include gathering head, gas-supply pipe and fan, gather head one end and gas-supply pipe intercommunication, the one end and the fan intercommunication of gathering head are kept away from to the gas-supply pipe, and the monitoring subassembly is located between gathering head and the fan.

Through adopting above-mentioned technical scheme, when monitoring the VOC volatile substance, start the fan, the fan will be through in the VOC conveying gas-supply pipe that the collection head was gathered, the monitoring subassembly in the gas-supply pipe detects the VOC content in the product, realizes the timely detection in the production process, has improved the accuracy that detects data.

Preferably, the detection assembly comprises a detection probe and an analysis display, the detection probe penetrates through the side wall of the gas conveying pipe and is fixedly connected with the gas conveying pipe, and one end, located outside the gas conveying pipe, of the detection probe is connected with the analysis display.

Through adopting above-mentioned technical scheme, when the detection subassembly monitored VOC content in to the product, test probe gathered the gas in the gas transmission pipe, reachs final data through analysis display, and the setting up of fan has realized the circulation of gas in the gas transmission pipe simultaneously, has guaranteed data acquisition's ageing, and then has improved the testing result.

Preferably, the analysis display is communicated with an alarm assembly which is fixedly connected to the circumferential outer wall of the gas conveying pipe.

Through adopting above-mentioned technical scheme, it is that when the analysis display detects out that the interior VOC content of gas transmission pipe exceeds the setting value, the alarm assembly with information transfer to the alarm assembly, the setting of alarm assembly can remind people VOC to exceed standard, and then makes things convenient for people to handle it.

Preferably, the collecting head comprises a collecting pipe and a sealing plate, the sealing plate is fixedly connected with one end face of the collecting pipe, the collecting pipe is gradually in a necking shape from one end close to the sealing plate to one end far away from the sealing plate, and the collecting pipe is communicated with the detecting pipe; the one end that gathers the pipe and is close to the closing plate has been seted up and has been put the thing groove, puts the thing groove and runs through and gathers pipe lateral wall and closing plate.

Through adopting above-mentioned technical scheme, will print the film and pass and put the thing groove during the use, when the printing film removed, relative displacement appears in printing film and collection pipe, uses with the fan cooperation and can realize in time the gaseous VOC content of realizing real-time supervision product of gathering.

Preferably, the one end intercommunication that the collection head was kept away from to the gas-supply pipe has filtering component, and filtering component includes cartridge filter, filter core and filter plate, and the filter plate is many empty board column structures, and the filter plate is provided with two, and the filter core clamp connects between two filter plates, and perpendicular and fixed connection of filter plate and cartridge filter circumference inner wall is provided with coupling assembling between cartridge filter and the gas-supply pipe.

Through adopting above-mentioned technical scheme, after detecting the completion, the gas flow in the air pipe flows to the cartridge filter, and the content of VOC in the air has been reduced to the filtration discharge through the filter core.

Preferably, the connecting assembly comprises a first flange plate, a second flange plate and connecting bolts, the first flange plate is fixedly connected with the end face of the gas conveying pipe, the second flange plate is fixedly connected with the filter cartridge, and the connecting bolts penetrate through the first flange plate and the second flange plate and are in threaded connection with the first flange plate and the second flange plate.

Through adopting above-mentioned technical scheme, when using coupling assembling to be connected cartridge filter and gas-supply pipe, with first ring flange and second ring flange to it, guarantee the perpendicular bisector collineation of the perpendicular bisector of first ring flange and second ring flange, using connecting bolt to connect first ring flange and second ring flange, coupling assembling's setting is convenient for the staff to pull down the cartridge filter and washs it.

Preferably, a sealing gasket is arranged between the first flange plate and the second flange plate.

Through adopting above-mentioned technical scheme, sealed setting up of filling up has improved the gas tightness between first ring flange and the second ring flange.

Preferably, the filter element comprises a primary core and a final core, and the primary core is positioned on the side of the final core far away from the air conveying pipe.

By adopting the technical scheme, the primary core is made of the activated carbon, the final core is made of the silica gel, and the arrangement of the final core and the final core can realize the absorption of VOC in the detected gas and reduce the emission.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the acquisition assembly and the detection assembly are matched for use, so that the VOC content in the product can be detected in the production process, and the accuracy of detection data is improved;

2. when the VOC content exceeds the standard, the alarm assembly can remind a worker to adjust the printing ink, so that the qualification rate of the product is ensured;

3. the filtering component can filter VOC in the detected gas, and harm of VOC to people is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

fig. 2 is a sectional view showing a filter assembly.

In the figure, 1, an acquisition assembly; 11. a pick head; 111. a collection tube; 112. a sealing plate; 12. a gas delivery pipe; 13. a fan; 2. a detection component; 21. detecting a probe; 22. analyzing the display; 3. an alarm component; 4. a storage groove; 5. a filter assembly; 51. a filter cartridge; 52. a filter element; 521. a primary core; 522. a final core; 53. filtering the plate; 6. a connecting assembly; 61. a first flange plate; 62. a second flange plate; 63. a connecting bolt; 7. and a gasket.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses VOC volatile matter on-line monitoring system for PVC color film production.

Referring to fig. 1 and 2, the online detection system for the volatile compound in the production of the PVC color film comprises a collection assembly 1 for collecting the volatile compound in the volatile compound, wherein the collection assembly 1 is communicated with a detection assembly 2, the collection assembly 1 comprises a collection head 11, a gas pipe 12 and a fan 13, one end of the collection head 11 is communicated with the gas pipe 12, the other end of the collection head is communicated with the fan 13, the detection assembly 2 is positioned between the fan 13 and the collection head 11, and a filter assembly 5 for filtering the detected gas is communicated with the end face of the gas pipe 12 far away from the collection head 11. When in use, the collecting head 11 absorbs the VOC gas with the volatilization of the printing film, the gas flows to the gas pipe 12 under the action of the fan 13, the detection of the detection component 2 in the gas pipe 12 is used for obtaining detection data, the gas after the detection is discharged after being filtered by the filtering component 5, the whole process does not need a worker to send the product to a laboratory for inspection, the accurate value of the VOC contained in the printing film can be detected simultaneously, and the effect of improving the accuracy of data detection is further achieved.

Referring to fig. 2, the collecting head 11 includes a collecting tube 111 and a sealing plate 112, the sealing plate 112 is fixedly connected to the collecting tube 111, the end surface of the collecting tube 111 far from the sealing plate 112 is communicated with the gas pipe 12, and the collecting tube 111 is in a necking shape from the end close to the sealing plate 112 to the end far from the sealing plate 112, the end of the collecting tube 111 close to the sealing plate 112 is provided with a storage groove 4, the storage groove 4 penetrates through the side wall of the collecting tube 111 and the sealing plate 112, when detecting a printed film, the printed film is placed in the storage groove 4, VOC volatiles carried by the storage groove 4 flow into the collecting tube 111, flow into the gas pipe 12 under the action of the fan 13, and further, the timeliness of the detection data and the accuracy of the detection data are ensured.

Referring to fig. 1 and 2, the detecting component 2 includes a detecting probe 21 and an analyzing display 22, one end of the detecting probe 21 penetrates through the gas pipe 12 and is fixedly connected with the gas pipe 12, one end of the detecting probe outside the gas pipe 12 is connected with the analyzing display 22, the analyzing display 22 is fixedly connected with the gas pipe 12, the analyzing display 22 is connected with an alarm component 3, the alarm component 3 is fixedly connected with the gas pipe 12, along with the continuous movement of the printing film and the continuous work of the fan 13, the gas with the volatile gas is pumped to the gas, the detecting probe 21 detects the volatile gas in real time, when the volatile gas, when the volatile gas, the volatile gas, the volatile gas, the volatile gas, the volatile.

Referring to fig. 1 and 2, a connecting assembly 6 is arranged between the filter assembly 5 and the gas pipe 12, the filter assembly 5 includes a filter cartridge 51, a filter element 52 and filter plates 53, the connecting assembly 6 includes a first flange 61, a second flange 62 and connecting bolts 63, the first flange 61 is fixedly connected with the end surface of the gas pipe 12 far away from the collecting head 11, the second flange 62 is fixedly connected with the end surface of the filter cartridge 51 near the gas pipe 12, the connecting bolts 63 penetrate through the first flange 61 and the second flange 62 and are in threaded connection with the first flange 61 and the second flange 62, two filter plates 53 are arranged, the filter plates 53 are in a porous plate structure, the filter element 52 is clamped between the two filter plates 53, the filter plates 53 are positioned in the filter cartridge 51 and are fixedly connected with the inner wall of the filter cartridge 51, the circumferential side wall of the filter element 52 abuts against the circumferential inner wall of the filter cartridge 51, the filter element 52 includes a primary core, the final core 522 is made of silica gel, the primary core 521 is located on the side, far away from the gas pipe 12, of the final core 522, after the detection of the content of the VOC in the gas by the detection assembly 2 is completed, the VOC volatile matter in the gas is adsorbed by the filtering of the primary core 521 and the final core 522 after being transmitted to the filter cylinder 51 by the gas pipe 12 under the action of the fan 13, and therefore harm to workers is prevented.

The implementation principle of the VOC volatile matter on-line monitoring system for PVC color film production in the embodiment of the application is as follows: the VOC volatile matter that printed film volatilizees is gathered to collection head 11, under fan 13's effect, gaseous entering gas-supply pipe 12 in, the determine module 2 through the gas-supply pipe 12 detects, if VOC content exceeds standard in the gas alarm module 3 sends the police dispatch newspaper, gaseous after the detection, flow to cartridge filter 51 under fan 13's effect, adsorb the VOC volatile matter in the gas under the effect of filter core 52, the accuracy of testing data has been guaranteed when reducing the harm that the staff receives.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a various membrane production of PVC is with VOC volatile substance on-line monitoring system which characterized in that: including collection subassembly (1), collection subassembly (1) intercommunication has detection subassembly (2), and collection subassembly (1) is including collection head (11), gas-supply pipe (12) and fan (13), and collection head (11) one end and gas-supply pipe (12) intercommunication, and the one end and fan (13) intercommunication of collection head (11) are kept away from in gas-supply pipe (12), and the monitoring subassembly is located between collection head (11) and fan (13).

2. The online monitoring system for the VOC volatile matter used for the production of the PVC color film of claim 1 is characterized in that: the detection assembly (2) comprises a detection probe (21) and an analysis display (22), the detection probe (21) penetrates through the side wall of the gas conveying pipe (12) and is fixedly connected with the gas conveying pipe (12), and one end, located outside the gas conveying pipe (12), of the detection probe (21) is connected with the analysis display (22).

3. The online monitoring system for the VOC volatile matter used for the production of the PVC color film of claim 2 is characterized in that: the analysis display (22) is communicated with an alarm component (3), and the alarm component (3) is fixedly connected to the circumferential outer wall of the gas conveying pipe (12).

4. The online monitoring system for the VOC volatile matter used for the production of the PVC color film of claim 1 is characterized in that: the collecting head (11) comprises a collecting pipe (111) and a sealing plate (112), the sealing plate (112) is fixedly connected with one end face of the collecting pipe (111), the collecting pipe (111) is gradually in a necking shape from one end close to the sealing plate (112) to one end far away from the sealing plate (112), and the collecting pipe (111) is communicated with the detection pipe; one end of the collecting pipe (111) close to the sealing plate (112) is provided with a storage groove (4), and the storage groove (4) penetrates through the side wall of the collecting pipe (111) and the sealing plate (112).

5. The online monitoring system for the VOC volatile matter used for the production of the PVC color film of claim 1 is characterized in that: one end intercommunication that collection head (11) was kept away from in gas-supply pipe (12) has filtering component (5), filtering component (5) are including cartridge filter (51), filter core (52) and filter plate (53), and filter plate (53) are many empty platelike structure, and filter plate (53) are provided with two, and filter core (52) clamp connects between two filter plates (53), and perpendicular and fixed connection of filter plate (53) and cartridge filter (51) circumference inner wall is provided with coupling assembling (6) between cartridge filter (51) and gas-supply pipe (12).

6. The VOC volatile matter on-line monitoring system for PVC color film production according to claim 5, characterized in that: the connecting assembly (6) comprises a first flange plate (61), a second flange plate (62) and connecting bolts (63), the first flange plate (61) is fixedly connected with the end face of the gas conveying pipe (12), the second flange plate (62) is fixedly connected with the filter cylinder (51), and the connecting bolts (63) penetrate through the first flange plate (61) and the second flange plate (62) and are in threaded connection with the first flange plate and the second flange plate.

7. The online monitoring system for the VOC volatile matter used for the production of the PVC color film of claim 6 is characterized in that: and a sealing gasket (7) is arranged between the first flange plate (61) and the second flange plate (62).

8. The VOC volatile matter on-line monitoring system for PVC color film production according to claim 5, characterized in that: the filter element (52) comprises a primary core (521) and a final core (522), and the primary core (521) is positioned on one side of the final core (522) far away from the air conveying pipe (12).