CN221035247U - Ozone precursor on-line transmission device - Google Patents

Abstract

The utility model relates to the field of gas detection devices, and particularly discloses an ozone precursor on-line transmission device, which comprises: the case is internally provided with a water tank and a gas storage cabin, a gas suction pipe group connected with the gas storage cabin, a cooling pipe group sleeved on the periphery of the gas suction pipe group, a first water channel and a second water channel which are mutually communicated with the water tank are arranged on the cooling pipe group, a gas suction port, a gas outlet and a detection port are formed in the gas storage cabin, and a sealing assembly which is arranged on the case body and is mutually communicated with the detection port is arranged on the gas storage cabin. According to the utility model, the ozone precursor sample in the remote area is collected, transmitted and stored through the air suction pipe group and the air storage cabin, the cooling pipe group is sleeved on the periphery of the air suction pipe group, the air suction pipe group is cooled by pumping cooling liquid in the water tank into the cooling pipe group, and the light around the air suction pipe group can be shielded, so that the ozone precursor can be well prevented from being decomposed in the transmission process, and the detection precision is ensured.

Description

Ozone precursor on-line transmission device

Technical Field

The utility model belongs to the field of gas detection devices, and particularly relates to an ozone precursor on-line transmission device.

Background

Ozone precursors mainly contain nitrogen oxides and Volatile Organic Compounds (VOCs), can be discharged into the air through industrial waste gas, automobile exhaust and other ways, can be released in indoor buildings, decorative materials, paint and household appliances, have extremely unstable chemical properties, can volatilize and oxidize to form ozone when being subjected to high temperature or illumination, and generate great harm to the living health of the atmosphere and human beings. Sometimes the area releasing the ozone precursor is far away and the space is small, and test equipment and personnel can not go deep into the test area to test, so that remote sampling transmission is required to be carried out on the air in the areas, and the collected ozone precursor is easy to volatilize and decompose due to the fact that the property of the ozone precursor is very unstable and is often influenced by high temperature or illumination and other reasons when the ozone precursor is transmitted, so that the accuracy of remote online detection can be greatly influenced.

The patent literature with the application number of CN201721220148.1 discloses a VOC on-line detection device, which comprises a detector shell, a sampler, an alarm flashing lamp, a display, an internal power supply, a WIFI controller and a GPS (global positioning system) positioner, wherein the sampler is arranged on the upper surface of the detector shell, the detector shell and the sampler are fixedly connected through a nut, the alarm flashing lamp is arranged at the right end of the upper part of the front surface of the detector shell, the display is arranged below the alarm flashing lamp, the internal power supply is arranged inside the detector shell, and the internal power supply is fixedly connected with the detector shell through the nut; the VOC on-line detection device in the comparison document can accurately find a detection place to detect volatile organic compounds through the built-in GPS positioner, but cannot detect ozone precursors in a remote area, and cannot avoid damage to the stability of detection gas due to conditions such as high-temperature illumination and the like in the gas transmission process.

The foregoing background is only for the purpose of providing an understanding of the inventive concepts and technical aspects of the present utility model and is not necessarily prior art to the present application and is not intended to be used as an aid in the evaluation of the novelty and creativity of the present utility model in the event that no clear evidence indicates that such is already disclosed at the date of filing of the present application.

Disclosure of utility model

The utility model aims to provide an on-line ozone precursor conveying device, so that the defects that the existing on-line ozone precursor detecting device cannot carry out on-line conveying detection on the ozone precursor in a remote area, and the ozone precursor is easy to influence high temperature, illumination and the like during conveying so that detection data are inaccurate are overcome.

In order to achieve the above object, the present utility model provides an ozone precursor on-line delivery device, comprising: the device comprises a case, wherein a water tank and a gas storage cabin are arranged in the case, the water tank is provided with a water inlet, a water outlet and a water injection port, the gas storage cabin is provided with an air suction port, a gas outlet and a detection port, one side of the case is provided with a waste gas pipe, a fan is arranged between the waste gas pipe and the gas outlet, and a butterfly valve is arranged at the gas outlet; a suction tube group including a suction head and a suction tube, the suction tube interconnecting the suction head and the suction port; the cooling tube set is provided with an air tube sleeve, a first water channel and a second water channel, the first water channel and the second water channel are coated on the outer side of the air tube sleeve, one end of the first water channel is mutually communicated with one end of the second water channel, the other end of the first water channel is connected with the water inlet through a first water tube, the other end of the second water channel is connected with the water outlet through a second water tube, a water pump is arranged between the second water tube and the water outlet, and the suction tube penetrates through the air tube sleeve.

Preferably, in the above technical scheme, the suction head is provided with a middle pipe, an air passage is arranged in the middle pipe, the air passage extends outwards from one end of the middle pipe to form a pipe orifice, the pipe orifice is connected with the suction pipe, and a plurality of first air passing holes communicated with the air passage are formed in the side part of the middle pipe.

Preferably, in the above technical scheme, the suction head is provided with a buffer chamber, the buffer chamber is surrounded on the periphery of the middle pipe, the first air passing holes are used for communicating the buffer chamber with the air passage, and the side part of the suction head is provided with a second air passing hole which is mutually communicated with the buffer chamber.

Preferably, in the above technical solution, a filter screen is disposed on an inner side wall of the buffer chamber, and the filter screen can shield the second air passing hole.

Preferably, in the above technical solution, the cooling tube set includes a hose and a tube seat, one end of the hose is mounted on a side portion of the chassis through the tube seat, the tracheal cannula, the first water channel and the second water channel are disposed in the hose, and the hose can be bent along with the straw.

Preferably, in the above technical solution, the tube seat includes a seat hole, a first water cavity and a second water cavity, when the hose is connected with the tube seat, the seat hole is communicated with the tracheal cannula, the first water cavity is communicated with the first water channel, the second water cavity is communicated with the second water channel, the first water pipe is fixedly connected with the tube seat and is communicated with the first water cavity, and the second water pipe is fixedly connected with the tube seat and is communicated with the second water cavity.

Preferably, in the above technical solution, an outwardly extending plug portion is provided at the mouth of the first water chamber and the mouth of the second water chamber, and the plug portion may be inserted into the first water channel and the second water channel in a tight fit manner.

Preferably, in the above technical solution, a sealing assembly is further provided on the chassis, and the sealing assembly includes: the sealing seat is fixedly arranged at the side part of the case, a probe hole is formed in the sealing seat, the probe hole is aligned with the detection port and is connected with the detection port through a connecting sleeve, a detachable sealing cap is arranged on the sealing seat, and a cap hole is formed in the sealing cap; the number of the rubber blades is more than two, one end of each rubber blade is clamped between the sealing cap and the sealing seat, and the other end of each rubber blade and the edge of each rubber blade are mutually abutted so as to seal the probe hole.

Preferably, in the above technical solution, a detachable cover body is provided at the water filling port, and an openable protective cover is provided at the top of the casing, and the protective cover is opposite to the water filling port.

Preferably, in the above technical solution, the air conditioner further comprises an operation module, the operation module comprises a controller and an operation panel, the operation panel is arranged at the top of the case and is electrically connected with the controller, and the controller is electrically connected with the fan and the water pump.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the on-line ozone precursor conveying device, ozone precursor samples in a remote area are collected, conveyed and stored through the air suction pipe group and the air storage cabin, the cooling pipe group is sleeved on the periphery of the air suction pipe group, cooling liquid in the water tank is pumped into the cooling pipe group to cool the air suction pipe group, light rays around the air suction pipe group can be shielded, so that ozone precursor decomposition in the conveying process can be well prevented, and detection accuracy is ensured.

2. The middle pipe is arranged in the suction head, the plurality of first air passing holes are formed in the side part of the middle pipe, and compared with the arrangement that the first air passing holes are formed in the end part, the arrangement that the first air passing holes are formed in the side part of the middle pipe is beneficial to increasing the air passing amount; and be provided with the buffer chamber in the periphery of intermediate tube, can prevent the impact of foreign object to the intermediate tube, the filter screen on the second air passing hole on the buffer chamber can also filter outside dust.

3. The cooling tube group comprises a hose made of soft materials and a tube seat made of hard materials, a first water channel and a second water channel are arranged in the hose, one end of the first water channel is communicated with one end of the second water channel, a first water cavity and a second water cavity are arranged in the tube seat, the other end of the first water channel is communicated with the first water cavity, the other end of the second water channel is communicated with the second water cavity, the first water cavity is communicated with the water tank through a first water pipe, and the second water cavity is communicated with the water tank through a second water pipe, so that a closed-loop cooling water circulation system is formed between the whole cooling tube group and the water tank, heat around the suction tube can be taken away continuously, and a good cooling effect can be achieved on gas in the suction tube.

4. According to the sealing assembly, the plurality of rubber blades with the edges abutting against each other are arranged on the sealing seat, when the sealing assembly is used, the probe of the online detector is inserted into the probe hole, the rubber blades are propped open and then extend into the periphery of the detection opening, so that gas in the gas storage cabin is detected, when the probe is taken out after detection, the rubber blades can rebound and mutually close, the probe hole is sealed, and the environment pollution caused by the leakage of the detected gas is prevented.

Drawings

Fig. 1 is a partial cutaway view of an in-line delivery device for ozone precursor of the present utility model.

Fig. 2 is a block diagram of an ozone precursor on-line delivery device.

Fig. 3 is a structural view of the water tank.

Fig. 4 is a structural view of the air reservoir.

FIG. 5 is a partial cutaway view of a suction head.

Fig. 6 is a partial cut-away view of the hose.

Fig. 7 is a partial cutaway view of a header.

Fig. 8 is an exploded view of the seal assembly.

The main reference numerals illustrate:

100-chassis, 110-exhaust pipe, 120-protective cover;

200-a water tank, 210-a water inlet, 220-a water outlet, 230-a water injection port and 240-a cover body;

300-air storage cabin, 310-air suction port, 320-air outlet, 330-detection port and 340-fan;

400-of a suction pipe group, 410-of a suction head, 411-of an intermediate pipe, 412-of an air passage, 413-of a pipe orifice, 414-of a first air passing hole, 420-of a suction pipe, 430-of a buffer chamber, 431-of a second air passing hole, 432-of a filter screen;

500-cooling tube group, 510-tracheal tube, 520-first water channel, 530-second water channel, 540-first water tube, 550-second water tube, 560-water pump, 570-hose, 571-parting bead, 580-tube seat, 581-seat hole, 582-first water cavity, 583-second water cavity, 584-plug-in part;

600-sealing assembly, 610-sealing seat, 611-probe hole, 620-rubber blade, 630-connecting sleeve, 640-sealing cap, 641-cap hole;

700-operation module.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "transverse"

The references to "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The terms "first," "second," "third," and the like, if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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. Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

As shown in fig. 1 to 8, the ozone precursor on-line delivery device in this embodiment includes: the gas storage device comprises a case 100, a gas exhaust pipe 110, a protective cover 120, a water tank 200, a water inlet 210, a water outlet 220, a water injection port 230, a cover 240, a gas storage tank 300, a gas suction port 310, a gas outlet 320, a detection port 330, a fan 340, a gas suction pipe group 400, a suction head 410, an intermediate pipe 411, a gas passage 412, a pipe orifice 413, a first gas passing hole 414, a suction pipe 420, a buffer chamber 430, a second gas passing hole 431, a filter screen 432, a cooling pipe group 500, a gas pipe sleeve 510, a first water channel 520, a second water channel 530, a first water pipe 540, a second water pipe 550, a water pump 560, a hose 570, a partition 571, a pipe seat 580, a seat hole 581, a first water cavity 582, a second water cavity 583, a plug portion 584, a seal assembly 600, a seal seat 610, a probe hole 611, a rubber blade 620, a connection sleeve 630, a seal cap 640, a cap hole 641, and an operation module 700.

The water tank 200 and the gas storage cabin 300 are fixedly arranged in the case 100, a water inlet 210 and a water outlet 220 are arranged at the position, close to the front end of the case 100, of the water tank 200, the water outlet 220 is positioned below the water inlet 210, a water filling port 230 is arranged at the top of the water tank 200, the body of the water tank 200 is made of polyethylene materials, reinforcing ribs connected with the water filling port 230 are arranged at the top of the water tank 200, a detachable cover 240 is arranged at the water filling port 230, and the cover 240 is in threaded connection with the periphery of the water filling port 230; the gas storage cabin 300 is made of stainless steel materials, an air suction port 310 is arranged at a position, close to the front end of the chassis 100, of the gas storage cabin 300, an air outlet 320 is arranged at the side part of the gas storage cabin 300, a detection port 330 is arranged at a position, close to the rear end of the chassis 100, of the gas storage cabin 300, an exhaust pipe 110 is arranged at one side of the chassis 100, a fan 340 is arranged at the side part of the gas storage cabin 300, the suction end of the fan 340 is mutually butted with the air outlet 320, a butterfly valve is arranged at the air outlet 320 and can allow airflow to flow in one direction from the air outlet 320 to the inside of the fan 340, the exhaust pipe 110 is connected with the air outlet end of the fan 340, and the exhaust pipe 110 is used for being mutually connected with an ozone treatment device.

The suction tube group 400 comprises a suction head 410 and a suction tube 420, the suction tube 420 connects the suction head 410 and the suction port 310 with each other, the suction tube 420 is made of soft materials, the suction head 410 is cylindrical, a middle tube 411 is arranged in the suction head, an air passage 412 is arranged in the middle tube 411, the air passage 412 extends outwards from one end of the middle tube 411 to form a tube opening 413, the tube opening 413 is connected with the suction tube 420, two first air passing holes 414 communicated with the air passage 412 are formed in the side part of the middle tube 411, the hole shape of each air passing hole is long and waist-shaped, and the length direction of each air passing hole is parallel to the axis of the middle tube 411; the buffer chamber 430 is arranged in the suction head 410, the buffer chamber 430 is surrounded by a ring Zhou Judi of the middle pipe 411, the buffer chamber 430 is communicated with the air passage 412 through an air hole 414, a second air hole 431 communicated with the buffer chamber 430 is formed in the side part of the suction head 410, a filter screen 432 is arranged on the inner side wall of the buffer chamber 430, and the filter screen 432 can shield the second air hole 431.

The cooling tube set 500 includes a hose 570 and a tube holder 580, the tube holder 580 is fixedly installed at a front side of the cabinet 100, one end of the hose 570 is connected with the tube holder 580, an air tube sleeve 510 is provided at a middle portion of the hose 570, a partition bar 571 is connected between an outer side of the air tube sleeve 510 and an inner side wall of the hose 570, thereby partitioning a region between the air tube sleeve 510 and the hose 570 into a first water channel 520 and a second water channel 530, the first water channel 520 and the second water channel 530 are covered at an outer side of the air tube sleeve 510, the hose 570 is made of a flexible material capable of shielding light, the suction tube 420 is capable of passing through the air tube sleeve 510 and being bent synchronously with bending of the suction tube 420, one end of the first water channel 520 is connected with one end of the second water channel 530, an end corresponding to one end of the first water channel 520 and one end of the second water channel 530 is a sealing structure, the middle part of the tube holder 580 is provided with a seat hole 581, a first water cavity 582 and a second water cavity 583, the first water cavity 582 and the second water cavity 583 are positioned at two sides of the seat hole 581, the end, opposite to one end of the first water channel 520 and one end of the second water channel 530, of the hose 570 is mutually connected with the tube holder 580, the seat hole 581 is communicated with the tracheal cannula 510, the first water cavity 582 is communicated with the first water channel 520, the second water cavity 583 is communicated with the second water channel 530, the first water pipe 540 is fixedly connected with the tube holder 580 and is communicated with the first water cavity 582, the second water pipe 550 is fixedly connected with the tube holder 580 and is communicated with the second water cavity 583, the first water pipe 540 is connected with the water inlet 210, the second water pipe 550 is connected with the water outlet 220, and the water pump 560 is installed between the second water pipe 550 and the water outlet 220.

Further, an outwardly extending plug 584 is provided at the mouth of the first water chamber 582 and the mouth of the second water chamber 583, and the plug 584 can be inserted into the first water channel 520 and the second water channel 530 in a tight fit manner.

In addition, a sealing assembly 600 is further installed at the rear end of the cabinet 100, and the sealing assembly 600 includes a sealing seat 610, a rubber blade 620, and a sealing cap 640; the sealing seat 610 is fixedly arranged at the side part of the chassis 100, a probe hole 611 is formed in the sealing seat 610, the probe hole 611 is aligned with the detection port 330 and is connected with each other through a connecting sleeve 630, a detachable sealing cap 640 is arranged on the sealing seat 610, and a cap hole 641 is formed in the sealing cap 640; the number of the rubber blades 620 is 8, each rubber blade 620 is arranged in a center line annular array of the cap hole 641, one end of each rubber blade 620 is clamped between the sealing cap 640 and the sealing seat 610, the tip portions and the edges of the other ends of each rubber blade 620 are abutted against each other, the probe hole 611 can be covered in a stationary state, and when an external force acts on the other ends of the rubber blades 620, the other ends of the rubber blades 620 can be pushed open.

In addition, an operation module 700 is further installed on the top of the chassis 100, the operation module 700 includes a controller and an operation panel, the operation panel is installed on the top of the chassis 100, the bottom of the operation panel is electrically connected with the controller, the controller is located in the chassis 100, the controller is electrically connected with the fan 340 and the water pump 560, and the operation panel is a touch panel and can be used for controlling the start and stop of the fan 340, the running time of the fan 340, the start and stop of the water pump 560 and the running time of the water pump 560; the openable and closable protective cover 120 is further installed at the top of the cabinet 100, and the protective cover 120 is opposite to the water filling port 230 so as to cover the cover 240 at the water filling port 230 for cleaning and aesthetic purposes.

Next, a method for using the ozone precursor on-line delivery device in this embodiment will be described in detail, so that those skilled in the art will more understand the present utility model:

When in use, firstly, water is injected into the water tank 200, the suction head 410 is extended into a space to be tested, then the water pump 560 is controlled to be started through the operation panel, so that the water pump 560 sucks water in the water tank 200 into the first water channel 520 through the first water pipe 540, the water flows through the second water channel 530 and the second water pipe 550, and finally flows back into the water tank 200, thereby forming a flowing cooling water circulation system, and the heat of the suction pipe 420 sleeved in the tracheal cannula 510 can be continuously taken away, so that the effect of cooling the temperature in the suction pipe 420 can be achieved; then the probe of the ozone precursor on-line detector is pushed away from the rubber blade 620, so that the ozone precursor is inserted into the probe hole 611 of the sealing seat 610 and extends to the connecting sleeve 630 or the detecting port 330 to detect the gas in the gas storage cabin 300; finally, the exhaust pipe 110 and the ozone treatment device are communicated with each other, the fan 340 is turned on, negative pressure is generated at the suction head 410, air in the collection area is continuously sucked into the air storage cabin 300, after the air storage cabin 300 is operated for a set suction time (the time required for completely changing the air of the air storage cabin 300), the fan 340 is turned off, at the moment, the butterfly valve is naturally turned off, and on-line detection of a sample in the air storage cabin 300 is started through the on-line detector.

In summary, in the ozone precursor on-line transfer device in this embodiment, the ozone precursor sample in the remote area is collected, transferred and stored through the air suction pipe group 400 and the air storage cabin 300, and the cooling pipe group 500 is sleeved on the periphery of the air suction pipe group 400, and the cooling liquid in the water tank 200 is pumped into the cooling pipe group 500 to cool the air suction pipe group 400, and also can shield the light around the air suction pipe group 400, so that the ozone precursor can be well prevented from being decomposed in the transfer process, and the detection accuracy is ensured.

The foregoing description of specific exemplary embodiments of the utility model has been presented for the purpose of illustration and description, but it is not intended to limit the utility model to the precise form disclosed, and it is apparent that many changes and modifications may be made in accordance with the above teachings, and while embodiments of the utility model have been shown and described, this specific embodiment is merely illustrative of the utility model and not restrictive, the particular features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments being selected and described for the purpose of explaining the specific principles of the utility model and its practical application, so that modifications, substitutions, variations, and various other changes may be made to the embodiments without creatively departing from the principles and spirit of the utility model as desired by those skilled in the art without departing from the scope of the patent claims.

Claims (10)

1. An ozone precursor on-line delivery device, comprising:

The device comprises a case, wherein a water tank and a gas storage cabin are arranged in the case, the water tank is provided with a water inlet, a water outlet and a water injection port, the gas storage cabin is provided with an air suction port, a gas outlet and a detection port, one side of the case is provided with a waste gas pipe, a fan is arranged between the waste gas pipe and the gas outlet, and a butterfly valve is arranged at the gas outlet;

A suction tube group including a suction head and a suction tube, the suction tube interconnecting the suction head and the suction port;

The cooling tube set is provided with an air tube sleeve, a first water channel and a second water channel, the first water channel and the second water channel are coated on the outer side of the air tube sleeve, one end of the first water channel is mutually communicated with one end of the second water channel, the other end of the first water channel is connected with the water inlet through a first water tube, the other end of the second water channel is connected with the water outlet through a second water tube, a water pump is arranged between the second water tube and the water outlet, and the suction tube penetrates through the air tube sleeve.

2. The on-line ozone precursor conveying device according to claim 1, wherein the suction head is provided with a middle pipe, an air passage is arranged in the middle pipe, the air passage extends outwards from one end of the middle pipe to form a pipe orifice, the pipe orifice is connected with the suction pipe, and a plurality of first air passing holes communicated with the air passage are formed in the side part of the middle pipe.

3. The on-line ozone precursor delivery device according to claim 2, wherein the suction head is provided with a buffer chamber, the buffer chamber is surrounded on the periphery of the middle pipe, the buffer chamber and the air passage are mutually communicated by the first air passing hole, and a second air passing hole which is mutually communicated with the buffer chamber is formed in the side part of the suction head.

4. The ozone precursor on-line delivery device according to claim 3, wherein a filter screen is provided on an inner side wall of the buffer chamber, and the filter screen can shield the second gas passing hole.

5. The ozone precursor on-line delivery device according to claim 1, wherein the cooling tube set comprises a hose and a tube holder, one end of the hose is mounted on a side of the cabinet through the tube holder, the tracheal tube, the first water channel and the second water channel are provided in the hose, and the hose can be bent along with the straw.

6. The ozone precursor on-line delivery device of claim 5, wherein the stem comprises a socket, a first water chamber and a second water chamber, the socket is in communication with the tracheal tube when the hose is interconnected with the stem, the first water chamber is in communication with the first water channel, the second water chamber is in communication with the second water channel, the first water tube is fixedly connected with the stem and in communication with the first water chamber, and the second water tube is fixedly connected with the stem and in communication with the second water chamber.

7. The ozone precursor on-line delivery device according to claim 6, wherein an outwardly extending plug is provided at the mouth of the first water chamber and the mouth of the second water chamber, the plug being insertable into the first water channel and the second water channel in a tight fit.

8. The ozone precursor on-line delivery device of claim 1, further comprising a seal assembly on the housing, comprising:

The sealing seat is fixedly arranged at the side part of the case, a probe hole is formed in the sealing seat, the probe hole is aligned with the detection port and is connected with the detection port through a connecting sleeve, a detachable sealing cap is arranged on the sealing seat, and a cap hole is formed in the sealing cap;

The number of the rubber blades is more than two, one end of each rubber blade is clamped between the sealing cap and the sealing seat, and the other end of each rubber blade and the edge of each rubber blade are mutually abutted so as to seal the probe hole.

9. The ozone precursor on-line delivery device according to claim 1, wherein a detachable cover body is arranged at the water filling port, and an openable protective cover is arranged at the top of the case, wherein the protective cover is opposite to the water filling port.

10. The on-line ozone precursor delivery device according to claim 1, further comprising an operation module, wherein the operation module comprises a controller and an operation panel, the operation panel is arranged at the top of the case and is electrically connected with the controller, and the controller is electrically connected with the fan and the water pump.