阅读说明：本技术 一种voc在线监测仪 (VOC on-line monitoring appearance ) 是由 不公告发明人 于 2019-10-18 设计创作，主要内容包括：本发明涉及环境监测领域,具体的说是一种VOC在线监测仪,包括收集箱,收集箱顶部的一侧固定连接有吸气组件,吸气组件的顶部通过连接折管固定连接有第一单向阀,收集箱的一侧固定连接有出气组件,出气组件包括第二单向阀,第一单向阀和第二单向阀的输出侧固定连接有调节管,收集箱内固定连接有感应组件,收集箱底部的两侧均固定连接有出气阀。通过设置第一单向阀,结合第二单向阀,便于将收集来的气体密封在收集箱内,便于有机挥发气体停留在收集箱内充分逗留以充分接触提高监测效果,通过将出气阀打开,使第一风扇转动,此时第一单向阀通气,第二单向阀闭合,便于在监测操作完成后,将装置内部的非空气气体排出,提高装置的清理能力。(The invention relates to the field of environmental monitoring, in particular to a VOC (volatile organic compound) online monitor which comprises a collecting box, wherein an air suction assembly is fixedly connected to one side of the top of the collecting box, the top of the air suction assembly is fixedly connected with a first one-way valve through a connecting folding pipe, an air outlet assembly is fixedly connected to one side of the collecting box, the air outlet assembly comprises a second one-way valve, adjusting pipes are fixedly connected to the output sides of the first one-way valve and the second one-way valve, an induction assembly is fixedly connected to the inside of the collecting box, and air outlet valves are fixedly connected to the. Through setting up first check valve, combine the second check valve, be convenient for with the gas seal who collects in the collecting box, be convenient for organic volatile gas stops in the collecting box and fully lingers in order fully to contact improvement monitoring effect, through opening the air outlet valve, makes first fan rotate, first check valve ventilates this moment, and the second check valve is closed, is convenient for accomplish the back at the monitoring operation, with the inside non-air gas outgoing of device, improves the cleaning capacity of device.)

1. The utility model provides a VOC on-line monitoring appearance, includes collecting box (1), its characterized in that: the air suction device is characterized in that an air suction assembly (2) is fixedly connected to one side of the top of the collecting box (1), a first one-way valve (21) is fixedly connected to the top of the air suction assembly (2) through a connecting folding pipe (24), an air outlet assembly (3) is fixedly connected to one side of the collecting box (1), the air outlet assembly (3) comprises a second one-way valve (31), an output side fixedly connected with adjusting pipe (6) of the first one-way valve (21) and the second one-way valve (31), an induction assembly (5) is fixedly connected to the inside of the collecting box (1), and air outlet valves (4) are fixedly connected to the two sides of the bottom of the collecting box (1).

2. The VOC on-line monitor according to claim 1, wherein: the inner wall of the collection box (1) is fixedly connected with a first connecting rod (11), and the first connecting rod (11) is fixedly connected with a first fan (12) located at the lower part of the induction component (5).

3. the VOC on-line monitor according to claim 1, wherein: the air suction assembly (2) comprises an air suction box (22), a second fan (221) is fixedly connected to the top of the inner wall of the air suction box (22), a first shunting block (23) is fixedly connected to the front portion and the rear portion of the inner wall of the air suction box (22), and buffering grooves (231) are formed in the two sides of the first shunting block (23).

4. The VOC on-line monitor according to claim 1, wherein: the utility model discloses a valve structure, including first check valve (21) and second check valve (31), the valve pipe (211) top of first check valve (21) and second check valve (31) has apron (212) through bolt-up connection, the inner wall fixedly connected with check pipe (213) of valve pipe (211), the top fixedly connected with movable shaft seat of one side of check pipe (213), one side of check pipe (213) has stifled dish (214) through movable shaft swing joint, one side fixedly connected with balancing weight (215) of stifled dish (214), valve pipe (211) of stifled dish (214) opposite side form air inlet (216), valve pipe (211) of stifled dish (214) one side forms gas outlet (217).

5. The VOC on-line monitor according to claim 1, wherein: an air outlet (217) of the first one-way valve (21) is fixedly connected with one side of the connecting folding pipe (24), and an air inlet (216) of the second one-way valve (31) is fixedly connected with one side of the box body of the collecting box (1).

6. The VOC on-line monitor according to claim 1, wherein: one side of the adjusting pipe (6) is in threaded connection with a ventilation cover (61), a ventilation hole is formed in the ventilation cover (61), a second connecting rod (62) is fixedly connected to the inner wall of the adjusting pipe (6), a spring seat (63) is fixedly connected to one side of the second connecting rod (62), a soft plugging cap (64) is fixedly connected to one end, far away from the second connecting rod (62), of the spring seat (63), and the plugging cap (64) and the non-ventilation hole portion of the ventilation cover (61) are pressed against each other.

7. The VOC on-line monitor according to claim 1, wherein: the front and back of the inner wall of the adjusting pipe (6) are fixedly connected with a second shunting block (65) located on one side of a second connecting rod (62), the top and the bottom of the inner wall of the adjusting pipe (6) are fixedly connected with side adjusting blocks (66), the side adjusting blocks (66) are connected with adjusting plugs (661) in a threaded mode, the top and the bottom of the second shunting block (65) are provided with female grooves (651) matched with the sections of the adjusting plugs (661), structural blocks are fixedly connected between the second shunting block (65) and the side adjusting blocks (66), parallel airflow grooves are formed between the structural blocks, and the side portions of the second shunting block (65) and the side adjusting blocks (66) are fixedly connected with a side buffer plate (662) and a middle buffer plate (652) respectively.

Technical Field

The invention relates to the field of environmental monitoring, in particular to a VOC (volatile organic compound) online monitor.

Background

VOC is an abbreviation for Volatile Organic Compounds, i.e., Organic volatiles. The VOC detector is used for continuously measuring toxic and harmful organic gases in dangerous or industrial environment, is particularly suitable for personal safety protection and on-site VOC detection, and is applied to industrial oil refining and petrifaction, chemical raw material and chemical product manufacturing, chemical drug raw material manufacturing, synthetic fiber manufacturing, surface coating, printing, shoe manufacturing, furniture manufacturing, artificial board manufacturing, electronic component manufacturing, textile printing and dyeing, plastic manufacturing, plastic products, living service industry and the like, but the existing VOC monitoring device has the following defects in the aspect of gas collection and induction:

Adopt the response of non-closed gaseous collection, make response unit and the inside original remaining gas of device have certain contact effect, cause the gaseous impure of institute response, and under the lighter condition of organic volatile matter concentration, the response of non-closed gaseous collection causes by monitoring gaseous and response unit contact time short excessively, influence monitoring effect, simultaneously in the sealed aspect of monitoring portion, adopt the sealed lid mode of traditional threaded connection, there is the gap to cause sealed incomplete between the screw thread, the collection velocity of flow of gathering gas is unfavorable for adjusting and adjust the sealed effect when and receive adjusting part's influence great.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a VOC on-line monitor.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a VOC on-line monitoring appearance, includes the collecting box, one side fixedly connected with subassembly of breathing in at collecting box top, the top of subassembly of breathing in is through connecting the first check valve of a tub fixedly connected with, one side fixedly connected with subassembly of giving vent to anger of collecting box, the subassembly of giving vent to anger includes the second check valve, the output side fixedly connected with regulating tube of first check valve and second check valve, fixedly connected with response subassembly in the collecting box, the equal fixedly connected with air outlet valve in both sides of collecting box bottom.

Specifically, the inner wall of the collection box is fixedly connected with a first connecting rod, and a first fan located at the lower part of the induction component is fixedly connected to the first connecting rod.

Specifically, the air suction assembly comprises an air suction box, a second fan is fixedly connected to the top of the inner wall of the air suction box, first shunting blocks are fixedly connected to the front portion and the rear portion of the inner wall of the air suction box, and buffering grooves are formed in the two sides of each first shunting block.

Specifically, the top of the valve pipe of first check valve and second check valve has the apron through bolt-up connection, the inner wall fixedly connected with check pipe of valve pipe, the top fixedly connected with activity axle bed of check pipe one side, one side of check pipe has the closure disc through loose axle swing joint, one side fixedly connected with balancing weight of closure disc, the valve pipe of closure disc opposite side forms the air inlet, the valve pipe of closure disc one side forms the gas outlet.

specifically, the air outlet of the first one-way valve is fixedly connected with one side of the connecting folding pipe, and the air inlet of the second one-way valve is fixedly connected with one side of the collecting box body.

Specifically, one side threaded connection of the regulating tube has ventilative lid, ventilative covering has seted up the bleeder vent, the inner wall fixedly connected with second connecting rod of regulating tube, one side fixedly connected with spring holder of second connecting rod, the one end fixedly connected with soft stifled cap of second connecting rod is kept away from to the spring holder, the non-ventilative hole portion of stifled cap and ventilative lid supports and presses.

Specifically, the equal fixedly connected with in the front and back of adjusting tube inner wall is located the second reposition of redundant personnel piece of second connecting rod one side, the equal fixedly connected with side regulating block in top and the bottom of adjusting tube inner wall, threaded connection has the regulating plug on the side regulating block, the top and the bottom of second reposition of redundant personnel piece all opened with the female groove of regulating plug section portion adaptation, fixedly connected with structure piece between second reposition of redundant personnel piece and the side regulating block, and form parallel air current groove between the structure piece, the lateral part difference fixedly connected with side buffer board and well buffer board of second reposition of redundant personnel piece and side regulating block.

The invention has the beneficial effects that:

(1) According to the VOC on-line monitor, the first one-way valve is arranged and combined with the second one-way valve, so that collected gas can be conveniently sealed in the collection box, organic volatile gas can be conveniently stayed in the collection box to be fully contacted, the monitoring effect is improved, the gas outlet valve is opened, the first fan is rotated, the first one-way valve is ventilated, the second one-way valve is closed, non-air gas in the device can be conveniently discharged after the monitoring operation is finished, and the cleaning capacity of the device is improved.

(2) according to the VOC on-line monitor, due to the arrangement of the blocking cap, when the VOC on-line monitor does not need to work, the blocking cap is conveniently lapped, the sealing effect of the device is improved, air leakage between threads is avoided, and the flow speed and the flow of fluid flowing through the adjusting pipe can be conveniently and conveniently adjusted by arranging the adjusting plug, combining the structure block and rotating the adjusting plug.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an online VOC monitor according to the present invention;

FIG. 2 is a schematic view of a gas collection state of an online VOC monitor provided by the present invention;

FIG. 3 is a first check valve of an online VOC monitoring system according to the present invention;

FIG. 4 is a schematic view of the gas flow direction of the regulating tube of the VOC on-line monitoring instrument provided by the present invention;

Fig. 5 is a schematic view of a regulating tube structure of the VOC on-line monitor according to the present invention.

In the figure: 1. a collection box; 11. a first connecting rod; 12. a first fan; 2. a getter assembly; 21. a first check valve; 211. a valve tube; 212. a cover plate; 213. a one-way tube; 214. blocking the disc; 215. a balancing weight; 216. an air inlet; 217. an air outlet; 22. an air suction box; 221. a second fan; 23. a first shunting block; 231. a buffer groove; 24. connecting the folding pipe; 3. an air outlet assembly; 31. a second one-way valve; 4. an air outlet valve; 5. an inductive component; 6. an adjusting tube; 61. a ventilation cover; 62. a second connecting rod; 63. a spring seat; 64. a plugging cap; 65. a second shunting block; 651. a mother tank; 652. a middle buffer plate; 66. a side adjusting block; 661. an adjusting plug; 662. and a side buffer plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

as shown in fig. 1-5, the VOC on-line monitor of the present invention comprises a collection box 1, wherein one side of the top of the collection box 1 is fixedly connected with an air suction assembly 2, the top of the air suction assembly 2 is fixedly connected with a first one-way valve 21 through a connecting folding pipe 24, one side of the collection box 1 is fixedly connected with an air outlet assembly 3, the air outlet assembly 3 comprises a second one-way valve 31, output sides of the first one-way valve 21 and the second one-way valve 31 are fixedly connected with an adjusting pipe 6, an induction assembly 5 is fixedly connected in the collection box 1, and both sides of the bottom of the collection box 1 are fixedly connected with air outlet valves 4.

Specifically, the inner wall of the collection box 1 is fixedly connected with a first connecting rod 11, the first connecting rod 11 is fixedly connected with a first fan 12 located at the lower part of the induction component 5, prepared exhaust is performed before monitoring, the air outlet valve 4 is opened under a normal environment, the first fan 12 is arranged, the first fan 12 and the second fan 221 are of the type of YE21238HBL, at the moment, the first check valve 21 is used for ventilating, and the second check valve 31 is closed, so that residual redundant air in the device is exhausted.

Specifically, the air suction assembly 2 comprises an air suction box 22, a second fan 221 is fixedly connected to the top of the inner wall of the air suction box 22, a first shunting block 23 is fixedly connected to the front and rear portions of the inner wall of the air suction box 22, and buffer grooves 231 are formed in two sides of the first shunting block 23.

Specifically, the tops of valve tubes 211 of the first one-way valve 21 and the second one-way valve 31 are fixedly connected with a cover plate 212 through bolts, the inner wall of the valve tube 211 is fixedly connected with a one-way tube 213, the top of one side of the one-way tube 213 is fixedly connected with a movable shaft seat, one side of the one-way tube 213 is movably connected with a blocking disc 214 through a movable shaft, one side of the blocking disc 214 is fixedly connected with a counterweight 215, the valve tube 211 of the other side of the blocking disc 214 forms an air inlet 216, the valve tube 211 of one side of the blocking disc 214 forms an air outlet 217, the air outlet 217 of the first one-way valve 21 is fixedly connected with one side of a connecting folding tube 24, the air inlet 216 of the second one-way valve 31 is fixedly connected with one side of a box body of the collection box 1, the collected air is conveniently sealed in the collection box 1 by arranging the first one-way valve 21 in combination with the second one-way valve 31, the organic volatile gas, by opening the air outlet valve 4, the first fan 12 is rotated, at this time, the first check valve 21 is ventilated, and the second check valve 31 is closed, so that the non-air gas inside the device can be discharged after the monitoring operation is completed.

Specifically, a ventilation cover 61 is connected to one side of the adjusting tube 6 through a screw thread, a ventilation hole is formed in the ventilation cover 61, a second connecting rod 62 is fixedly connected to the inner wall of the adjusting tube 6, a spring seat 63 is fixedly connected to one side of the second connecting rod 62, a soft plugging cap 64 is fixedly connected to one end, away from the second connecting rod 62, of the spring seat 63, the plugging cap 64 abuts against the non-ventilation hole portion of the ventilation cover 61, second shunting blocks 65 located on one side of the second connecting rod 62 are fixedly connected to the front and rear portions of the inner wall of the adjusting tube 6, side adjusting blocks 66 are fixedly connected to the top and bottom portions of the inner wall of the adjusting tube 6, adjusting plugs 661 are connected to the side adjusting blocks 66 through a screw thread, female grooves 651 matched with the adjusting plug sections are formed in the top and bottom portions of the second shunting blocks 65, and structural blocks are fixedly connected between the second shunting blocks 65 and the side adjusting blocks 66, and parallel airflow grooves are formed between the structural blocks, and the side parts of the second flow dividing block 65 and the side adjusting block 66 are fixedly connected with a side buffer plate 662 and a middle buffer plate 652 respectively.

when in use, the preparation exhaust is carried out before monitoring, the air outlet valve 4 is opened under the normal environment, the first fan 12 is arranged, the models of the first fan 12 and the second fan 221 are YE21238HBL, at the moment, the first check valve 21 is ventilated, the second check valve 31 is closed, then the device is placed in the monitored environment, the air outlet valve 4 is closed, the ventilation cover 61 is rotatably arranged on the adjusting pipe 6, the second fan 221 is arranged, under the action of air flow, the air flow sequentially flows between the second shunting block 65 and the side adjusting block 66 and between the side buffer plate 662 and the middle buffer plate 652, when the flow rate of the air flow needs to be adjusted, the adjusting plug 661 is rotated to block the air flow between the second shunting block 65 and the side adjusting block 66, at the moment, the first check valve 21 is in a ventilation state, after the air flow passes through the second fan 221, the air flow is shunted under the action of the buffer groove 231 of the first shunting block 23, and flows through the lower left side and the lower side of the air suction, after passing through the sensing assembly 5, the air flow is discharged from the second check valve 31, and when the monitored air in the device reaches an ideal state, the second fan 221 is turned off, so that the device performs monitoring operation.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.