CN214667994U

CN214667994U - Be used for fluoride waste gas detection sampling device

Info

Publication number: CN214667994U
Application number: CN202120535778.8U
Authority: CN
Inventors: 张洪磊; 果旺
Original assignee: Tongliao Environmental Protection Investment Co Ltd
Current assignee: Tongliao Environmental Protection Investment Co Ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-11-09
Anticipated expiration: 2031-03-12

Abstract

The utility model discloses a be used for fluoride waste gas to detect sampling device, including the A-frame, A-frame upper end fixedly connected with sample thief, sample thief right-hand member fixedly connected with battery, fixedly connected with air inlet connecting pipe in the middle of the sample thief left end, air inlet connecting pipe left end fixedly connected with sampling gun device, sampling gun device includes ultralow filter membrane, polytetrafluoroethylene inside lining and heat tracing pipe, heat tracing pipe inner wall fixedly connected with polytetrafluoroethylene inside lining, be equipped with a plurality of ultralow filter membranes inside the polytetrafluoroethylene inside lining, sampling gun device left end fixedly connected with external connection pipe, sampling gun device use heat tracing pipe when using ultralow filter membrane sampling, avoid unnecessary loss to make data increase the accuracy; the polytetrafluoroethylene lining is added in the heat tracing smoke pipe in the sampling gun device, so that the adsorption effect on low-concentration fluoride is prevented, and the influence on the detection true value is avoided.

Description

Be used for fluoride waste gas detection sampling device

Technical Field

The utility model belongs to the technical field of the exhaust-gas detection sampling device is relevant, concretely relates to be used for fluoride waste-gas detection sampling device.

Background

The current national standard is a modification bill of aluminum industry pollutant emission standard (GB25465-2010), wherein the limit value of the fluoride emitted by the atmospheric pollutants of an electrolytic aluminum plant is 3.0mg/m3, most of the enterprises and enterprises carry out demonstration engineering transformation, and the modified aluminum plant has the limit value of the fluoride emission of 0.3mg/m3 which is far lower than the requirement of the national standard fluoride emission concentration limit value according to the national aluminum industry environmental standard design standard; therefore, the ion selective electrode method for measuring the atmospheric fixed pollution source fluoride is not suitable for measuring the low-concentration fluoride, the method is not in accordance with the requirement of ultralow emission in many aspects, and the artificial error is inevitably introduced; therefore, a monitoring method with less error and higher accuracy is urgently needed to be established.

The prior art of the waste gas detection sampling device has the following problems: at present, waste gas will use waste gas detection sampling device when carrying out the detection achievement, and waste gas detection sampling device is when using glass fiber to strain a section of thick bamboo to carry out the sampling achievement, because present operating mode is high wet low temperature, so strain a section of thick bamboo and can absorb the aqueous vapor and easily break, ordinary opium pipe does not have the companion's heat function, it is inside along with the vapor condensation at the opium pipe to appear partial fluoride, cause the data error, simultaneously because the sampling rifle has the adsorption to low concentration fluoride, so to detect the true value and exert an influence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for containing fluoride exhaust-gas detection sampling device to solve the easy data error that causes that puts forward in the above-mentioned background art and produce the influence problem to detecting the true value.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for fluoride bearing waste gas detection sampling device, includes the A-frame, A-frame upper end fixedly connected with sample thief, sample thief right-hand member fixedly connected with battery, fixedly connected with air inlet connection pipe in the middle of the sample thief left end, air inlet connection pipe left end fixedly connected with sampling gun device, sampling gun device includes ultralow filter membrane, polytetrafluoroethylene inside lining and accompanies the heat pipe, accompany heat pipe inner wall fixedly connected with polytetrafluoroethylene inside lining, the inside a plurality of ultralow filter membranes that are equipped with of polytetrafluoroethylene inside lining, sampling gun device left end fixedly connected with external connecting pipe, external connecting pipe outer wall has cup jointed the supporting seat.

Preferably, the threaded column is fixed in the middle of the upper end of the triangular support, and the outer wall of the triangular support is coated with an insulating oxidation-resistant paint layer structure.

Preferably, the internal thread hole has been seted up in the middle of the sample thief lower extreme, the sample thief passes through the electric wire and follows heat pipe electric connection among the sampling gun device, the sample thief outer wall scribbles insulating anti-oxidation paint layer structure.

Preferably, the battery passes through power cord and sample thief electric connection, the battery outer wall scribbles insulating anti-oxidation paint layer structure.

Preferably, the sampling gun device is one meter long, and the outer wall of a heat tracing smoke gun in the sampling gun device is coated with a heat insulation paint layer structure.

Preferably, the thickness of the external connecting pipe is five millimeters, and the inner wall and the outer wall of the external connecting pipe are coated with an anti-oxidation paint layer structure.

Preferably, fixed trepanning has been seted up to the supporting seat upside, and fixed trepanning inner wall fixedly connected with protection circular cushion, fixed round hole has been seted up at supporting seat downside four corners.

Compared with the prior art, the utility model provides a be used for fluoride waste gas detection sampling device, possess following beneficial effect:

1. the utility model discloses the sampling rifle device uses the heat tracing smoke pipe while using the ultralow filter membrane to sample, avoids unnecessary loss to make data increase the accuracy;

2. the utility model discloses the inside polytetrafluoroethylene inside lining that adds of heat tracing pipe among the sampling rifle device prevents to the adsorption of low concentration fluoride, produces the influence to detecting the true value.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic structural view of a sampling device for detecting waste gas containing fluoride according to the present invention;

fig. 2 is the utility model provides a sampling gun device anatomical structure sketch map.

In the figure: 1. a sampling gun device; 11. ultra-low filtration membranes; 12. a polytetrafluoroethylene inner liner; 13. a heat tracing smoke pipe; 2. connecting pipes are externally connected; 3. a supporting seat; 4. a triangular bracket; 5. a storage battery; 6. a sampler; 7. an air inlet connecting pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a be used for fluoride bearing waste gas detection sampling device, including

A-frame

4, 4 upper end fixedly connected with sample thief 6 of A-frame, 6 right-hand member fixedly connected with batteries 5 of sample thief, fixedly connected with air inlet connection pipe 7 in the middle of the 6 left ends of sample thief, 7 left end fixedly connected with sampling gun device 1 of air inlet connection pipe, sampling gun device 1 includes ultralow filter membrane 11, polytetrafluoroethylene inside lining 12 and heat tracing pipe 13, heat tracing pipe 13 inner wall fixedly connected with polytetrafluoroethylene inside lining 12, inside a plurality of ultralow filter membranes 11 that are equipped with of polytetrafluoroethylene inside

lining

12, 1 left end fixedly connected with external connection pipe 2 of sampling gun device, supporting seat 3 has been cup jointed to external connection pipe 2 outer wall.

The sampling gun device 1 uses the ultralow filter membrane 11 for sampling and simultaneously uses the heat tracing smoke gun 13, so that unnecessary loss is avoided, and the accuracy of data is improved; the polytetrafluoroethylene lining 12 is added in the heat tracing smoke pipe 13 in the sampling gun device 1, so that the adsorption effect on low-concentration fluoride is prevented, and the influence on the detection true value is avoided.

In order to better support, a threaded column is fixed in the middle of the upper end of the triangular support 4, the outer wall of the triangular support 4 is coated with an insulating oxidation-resistant paint layer structure, and the triangular support 4 can better support and simultaneously adjust the height.

In order to carry out sampling analysis work, the internal thread hole has been seted up in the middle of the 6 lower extremes of sample thief, and sample thief 6 passes through the electric wire and follows heat pipe 13 electric connection among the

sampling gun device

1, and 6 outer walls of sample thief scribble insulating anti-oxidation paint layer structure, through sample thief 6, can carry out sampling analysis work better.

In order to provide a ground power supply, the storage battery 5 is electrically connected with the sampler 6 through a power line, the outer wall of the storage battery 5 is coated with an insulating oxidation-resistant paint layer structure, and the power supply can be better provided through the storage battery 5.

For data increase accuracy, the length of the sampling gun device 1 is one meter, the outer wall of a heat tracing smoke pipe 13 in the sampling gun device 1 is coated with a heat insulation paint layer structure, and through the sampling gun device 1, the data accuracy can be increased, the adsorption effect on low-concentration fluoride is prevented, and the influence on the detection true value is avoided.

In order to better perform the connection work, the thickness of the external connection pipe 2 is five millimeters, the inner wall and the outer wall of the external connection pipe 2 are coated with an anti-oxidation paint layer structure, and the connection work can be better performed through the external connection pipe 2.

In order to carry out the supporting work, fixed trepanning has been seted up to 3 upsides of supporting seat, and fixed trepanning inner wall fixedly connected with protection circular pad, and fixed round hole has been seted up in 3 downside four corners of supporting seat, through supporting seat 3, can carry out the supporting work better, also be in order to carry out the protection work better simultaneously.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the worker firstly operates the sampler 6 to ensure that the storage battery 5 performs the discharging work, thereby ensuring that the sampler 6 performs the constant-speed sampling work, and simultaneously leading the heat tracing smoke gun 13 in the sampling gun device 1 to perform the work, and then fixedly connecting the external connecting pipe 2 with the external exhaust pipe by the worker, after the work is completed, the whole device can be put into use, when in use, the sampling gun device 1 uses the heat tracing smoke gun 13 while using the ultra-low filter membrane 11 for sampling, thereby avoiding the unnecessary loss, and further increasing the accuracy of the data; in addition, a polytetrafluoroethylene lining 12 is added inside a heat tracing smoke gun 13 in the sampling gun device 1 to prevent the adsorption effect on low-concentration fluoride and influence the detection true value, when waste gas enters the sampler 6, the sampler 6 performs sampling analysis work (when the sampling volume of particulate matters in the HJ/T836-2017 standard is not less than 1000L, the trapping rate of the particulate matters is optimal, the measurement result is closest to the true value, therefore, the trapping rate of the fluoride is verified when the sampling volume of the fluoride is the same as the sampling volume of the particulate matters, when the sampling volume of the fluoride is increased, the measurement range is correspondingly changed, so that the measurement range and the detection limit of the fluoride are verified through subsequent analysis, and in addition, according to the fact that the volume of the fluoride absorption liquid is 75mL, whether the volume of the absorption liquid is correspondingly increased or not is determined, whether the solution concentration reaches saturation or not; to complete the experimental analysis), after the sampler 6 performs the isokinetic analysis, the isokinetic analysis can be displayed through a display screen in the sampler 6, so that the data recording work of workers is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A be used for fluoride waste gas detection sampling device, includes A-frame (4), its characterized in that: a triangular support (4) upper end fixedly connected with sample thief (6), sample thief (6) right-hand member fixedly connected with battery (5), fixedly connected with air inlet connection pipe (7) in the middle of sample thief (6) left end, air inlet connection pipe (7) left end fixedly connected with sampling gun device (1), sampling gun device (1) is including ultralow filter membrane (11), polytetrafluoroethylene inside lining (12) and heat tracing smoke gun (13), heat tracing smoke gun (13) inner wall fixedly connected with polytetrafluoroethylene inside lining (12), polytetrafluoroethylene inside lining (12) is inside to be equipped with a plurality of ultralow filter membranes (11), sampling gun device (1) left end fixedly connected with external connection pipe (2), supporting seat (3) have been cup jointed to external connection pipe (2) outer wall.

2. The fluoride-containing exhaust gas detection sampling device according to claim 1, wherein: the screw thread post is fixed in the middle of A-frame (4) upper end, A-frame (4) outer wall scribbles insulating oxidation resistant paint layer structure.

3. The fluoride-containing exhaust gas detection sampling device according to claim 1, wherein: the internal thread hole has been seted up in the middle of sample thief (6) lower extreme, sample thief (6) pass through electric wire and heat tracing smoke pipe (13) electric connection in sampling rifle device (1), sample thief (6) outer wall scribbles insulating anti oxidation paint layer structure.

4. The fluoride-containing exhaust gas detection sampling device according to claim 1, wherein: battery (5) are through power cord and sample thief (6) electric connection, battery (5) outer wall scribbles insulating anti-oxidation paint layer structure.

5. The fluoride-containing exhaust gas detection sampling device according to claim 1, wherein: the sampling gun device (1) is one meter in length, and the outer wall of a heat tracing smoke pipe (13) in the sampling gun device (1) is coated with a heat insulation paint layer structure.

6. The fluoride-containing exhaust gas detection sampling device according to claim 1, wherein: the thickness of the external connecting pipe (2) is five millimeters, and the inner wall and the outer wall of the external connecting pipe (2) are coated with an anti-oxidation paint layer structure.

7. The fluoride-containing exhaust gas detection sampling device according to claim 1, wherein: fixed trepanning has been seted up to supporting seat (3) upside, and fixed trepanning inner wall fixedly connected with protection circular cushion, fixed round hole has been seted up in supporting seat (3) downside four corners.