CN213481821U

CN213481821U - Portable gas leakage prevention particulate matter filtering gas sampling device

Info

Publication number: CN213481821U
Application number: CN202022254111.9U
Authority: CN
Inventors: 司景; 王汉言; 叶菲
Original assignee: Anhui Environmental Technology Institute Co ltd
Current assignee: Anhui Environmental Technology Institute Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-18
Anticipated expiration: 2030-10-12

Abstract

The invention discloses a portable gas leakage prevention particulate matter filtered gas sampling device which comprises an air exhaust cover, a sealing screw cap, a connecting pipe, an air exhaust pump, a conical bottle with a branch pipe, a rubber plug, a sampling bag assembly, an analytical balance weighing device and a support with a sucker. The gas side leakage detection device can suck and filter gas, prevents gas leakage at the filtering part, can weigh particles after suction filtration, is convenient to assemble and good in stability, has gas side leakage sensing alarm, and ensures accurate and safe sampling.

Description

Portable gas leakage prevention particulate matter filtering gas sampling device

Technical Field

The invention relates to the field of gas sampling devices, and particularly belongs to a portable gas leakage prevention particulate matter filtering gas sampling device.

Background

When the detection analysis research is carried out on the environmental gas or the gas containing the particulate matters in a specific area, a gas sample is required to be collected from time to time, and meanwhile, the content of the particulate matters in the gas is required to be measured. At this moment, some devices capable of sampling gas are designed and manufactured by people, such as: CN210347260U a novel atmosphere and particulate matter sample thief, CN209387359U a gaseous collection system and have its air particulate matter detection device to and CN106525520A fixed combustion source flue gas mixing channel dilutes multistage sampling device etc.. In the actual use of these devices, there are problems as follows: the device for sampling partial gas or particulate matters in gas is designed only by considering whether the device is convenient to carry or not, but does not consider the device and a gas collecting bag used by the device, and whether the device is convenient to mount or not in use, so that the devices are large in use limitation and inconvenient to integrally move; 2, when the device is not considered to be used, whether gas leakage or leakage occurs in the sampling process or not is not considered, so that secondary gas pollution is caused, or the weighing and measuring numerical value of the particulate matter is inaccurate; and 3, only the cost of the device is considered, and the cost of related using accessories is not considered in the using process of the device, so that the subsequent sampling using cost of people is higher. Therefore, a portable gas sampling device for preventing gas leakage and filtering particulate matters is developed.

Disclosure of Invention

The invention provides a portable gas-leakage-preventing particulate matter filtered gas sampling device, which solves the problems in the background technology by the overall research and development design of an air exhaust cover, a sealing screw cap, a connecting pipe, an air exhaust pump, a conical bottle with a branch pipe, a rubber plug, a sampling bag assembly, an analytical balance weighing device and a support with a sucker. Meanwhile, the gas side leakage detection device can suck and filter gas, prevents gas leakage at a filtering part, can weigh particles subjected to suction filtration, is convenient to assemble and good in stability, has gas side leakage sensing alarm, and ensures accurate and safe sampling.

The technical scheme adopted by the invention is as follows:

the utility model provides a portable leak protection gas particulate matter filters gaseous sampling device, its characterized in that is including the exhaust hood, sealed spiro union cap, the connecting pipe, the aspiration pump, take the branch pipe erlenmeyer flask, the rubber buffer, the sampling bag subassembly, analytical balance weighing device and take the sucking disc support, the exhaust hood is connected with the one end of connecting pipe through sealed spiro union cap, the connecting pipe other end is connected with the aspiration pump, the aspiration pump passes through the connecting pipe and is connected with the branch pipe department of taking the branch pipe erlenmeyer flask, the rubber buffer is installed in the bottleneck department of taking the branch pipe erlenmeyer flask, the sampling bag subassembly has the sampling bag, the needle inlet nozzle, the reducing rubber sleeve, the needle inlet nozzle passes the rubber buffer and is connected with the branch pipe erlenmeyer flask, take branch pipe erlenmeyer flask integral.

Preferably, there is the screw thread suction hood inboard, and the terminal fixed mounting of screw thread has rubber seal, and there is the joint at the upper end afterbody of suction hood, the one end suit of connecting pipe is in the joint department of suction hood upper end afterbody, and sealed spiro union cap is installed with the outside spiro union of connecting pipe junction in the joint department, the fixed cover of the other end of connecting pipe is in the air inlet department of aspiration pump, and sealed spiro union cap is installed with the outside spiro union of connecting pipe junction to the aspiration pump air inlet.

Preferably, the lower part of the rubber plug is a small-diameter plug, the middle part of the rubber plug is provided with a step, the step is provided with a groove, the upper part of the rubber plug is provided with a large-diameter plug, the small-diameter plug at the lower part of the rubber plug is embedded at the bottle mouth of the conical bottle with the branch pipe, and the bottle mouth of the conical bottle with the branch pipe is embedded in the groove at the step in the middle part of the rubber plug in an extending sealing manner.

Preferably, the sampling bag assembly comprises a sampling bag, a needle-shaped air inlet nozzle and a variable diameter rubber sleeve, wherein an air inlet port is arranged on the sampling bag, two layers of cambered diaphragms are arranged in the sampling bag, one side of each cambered diaphragm is bonded and fixed, the other side of each cambered diaphragm can be blown up, each cambered diaphragm is positioned in the joint of the tail end of the air inlet port on the sampling bag and the bag body, the needle-shaped air inlet nozzle is fixedly installed at the air inlet port of the sampling bag, when the sampling bag assembly is used, the interior of the bag body of the sampling bag is vacuumized, when gas is blown into the sampling bag from the needle-shaped air inlet nozzle through the air inlet port on the sampling bag, the cambered diaphragms in the joints of the tail end of the air inlet port on the sampling bag and the bag body are blown by the gas, the gas enters the interior of the sampling bag through the non-bonded fixed edge of the cambered diaphragms, when the blowing of the, this part gas can expand and press the cambered surface shape diaphragm, with the fixed limit that does not bond of cambered surface shape diaphragm, presses and pastes inside intake port end and the bag body junction, and the intake port is inside sealed on the sampling bag, and the gas of gathering is held and is had the internal portion of bag of sampling bag.

Preferably, the reducing rubber sleeve is provided with a small-diameter sleeve head and two ends of a large-diameter sleeve head, the small-diameter sleeve head of the reducing rubber sleeve can be sleeved on the needle-shaped air inlet nozzle, a fixed steel hoop can be additionally arranged on the outer side of the sleeved part of the small-diameter sleeve head and the needle-shaped air inlet nozzle, the large-diameter sleeve head of the reducing rubber sleeve can be sleeved on the large-diameter plug head on the upper part of the rubber plug at the tapered bottleneck of the branch pipe, and the fixed steel hoop can be additionally arranged on the outer side of the sleeved part of the large-diameter sleeve head and the large;

the side fixed mounting of reducing rubber sleeve has gas sensor, and gas sensor can sense whether gaseous leakage, gas sensor can be connected with electrified source alarm through the pencil, and when gas sensor sensing when specific gaseous leakage, the electrified source alarm of connecting through the pencil can report to the police.

Compared with the prior art, the invention has the following beneficial effects:

through to the whole research and development design of aspirating cover, sealed spiro union cap, connecting pipe, aspiration pump, taking branch pipe erlenmeyer flask, rubber buffer, sampling bag subassembly, analytical balance weighing device and taking the sucking disc support, we have developed a portable leak protection gas particulate matter and have filtered gaseous sampling device, have solved these current devices when in-service use, the problem that exists: the device for sampling partial gas or particulate matters in gas is designed only by considering whether the device is convenient to carry or not, but does not consider the device and a gas collecting bag used by the device, and whether the device is convenient to mount or not in use, so that the devices are large in use limitation and inconvenient to integrally move; 2, when the device is not considered to be used, whether gas leakage or leakage occurs in the sampling process or not is not considered, so that secondary gas pollution is caused, or the weighing and measuring numerical value of the particulate matter is inaccurate; and 3, only the cost of the device is considered, and the cost of related using accessories is not considered in the using process of the device, so that the subsequent sampling using cost of people is higher.

The gas side leakage detection and sampling device can suck and filter gas, prevent gas leakage at the filtering part, can weigh particles after suction filtration, is convenient to assemble, has good stability, has gas side leakage sensing and alarming functions, ensures accurate and safe sampling, and is suitable for being popularized and used in environmental gas detection and sampling research and particle filtering and weighing research of particles contained in the gas.

Drawings

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view showing the connection of a sampling bag assembly with a conical bottle with a branch tube and a rubber stopper according to the present invention;

fig. 3 is a schematic view of a rubber stopper in the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be described in further detail with reference to examples and specific embodiments.

Referring to the drawings: the utility model provides a portable leak protection gas particulate matter filters gaseous sampling device, its characterized in that includes the exhaust hood 8, sealed spiro union cap 7, the connecting pipe, aspiration pump 6, take branch pipe erlenmeyer flask 2, rubber buffer 3, sampling bag subassembly 4, analytical balance weighing device 1 and take sucking disc support 9, exhaust hood 8 is connected with the one end of connecting pipe through sealed spiro union cap 7, the connecting pipe other end is connected with aspiration pump 6, aspiration pump 6 is connected with the branch pipe department of taking branch pipe erlenmeyer flask 2 through the connecting pipe, rubber buffer 3 installs the bottleneck department at taking branch pipe erlenmeyer flask 2, sampling bag subassembly 4 has sampling bag 401, needle-like suction nozzle 403, reducing needle rubber sleeve 404, suction nozzle 403 passes rubber buffer 3 and is connected with taking branch pipe erlenmeyer flask 2, take branch pipe erlenmeyer flask 2 integral erection on analytical balance weighing device 1, aspiration pump 6 installs on taking sucking disc support 9.

Preferably, there is the screw thread suction hood 8 inboard, and the terminal fixed mounting of screw thread has rubber seal, and there is the joint at the upper end afterbody of suction hood 8, the one end suit of connecting pipe is in the joint department of suction hood 8 upper end afterbody, and sealed spiro union cap 7 is installed with the outside spiro union of connecting pipe junction in the joint department, the fixed cup joint in the air inlet department of aspiration pump 6 of the other end of connecting pipe, and sealed spiro union cap 7 is installed with the outside spiro union of connecting pipe junction in the air inlet of aspiration pump 6.

Preferably, the lower part of the rubber plug 3 is a small-diameter plug 301, the middle part of the rubber plug 3 is provided with a step, the step is provided with a groove 303, the upper part of the rubber plug 3 is provided with a large-diameter plug 301, the small-diameter plug 301 at the lower part of the rubber plug 3 is embedded at the bottle mouth of the conical bottle with branch pipe 2, and the bottle mouth of the conical bottle with branch pipe 2 is embedded in the groove 303 at the step in the middle part of the rubber plug 3 in an extending sealing manner.

Preferably, the sampling bag assembly 4 has a sampling bag 401, a needle-shaped air inlet nozzle 403, and a variable diameter rubber sleeve 404, the sampling bag 401 has an air inlet port, the sampling bag 401 has two layers of arc-shaped diaphragms 402 with one side adhered and fixed and the other side capable of being blown up, the arc-shaped diaphragms 402 are located inside the connection between the end of the air inlet port of the sampling bag 401 and the bag body, the needle-shaped air inlet nozzle 403 is fixedly installed at the air inlet port of the sampling bag 401, when the sampling bag assembly 4 is in use, the interior of the sampling bag 401 is vacuumized, when air is blown from the needle-shaped air inlet nozzle 403 and is ready to enter the sampling bag 401 through the air inlet port of the sampling bag 401, the arc-shaped diaphragms 402 inside the connection between the end of the air inlet port of the sampling bag 401 and the bag body are blown by the air, the air enters the sampling bag 401 through the non-adhered and fixed side of the arc-shaped diaphragms 402, and when the, because some gas has been accumulated in original sampling bag 401, this part of gas can expand and press cambered surface shape diaphragm 402, with the fixed limit that does not bond of cambered surface shape diaphragm 402, press the fixed limit of pasting in the end of inlet port and the inside of bag body junction, the inlet port is inside sealed on sampling bag 401, and the gas of gathering is held in the internal portion of bag of sampling bag 401.

Preferably, the reducing rubber sleeve 404 has a small diameter sleeve head and a large diameter sleeve head, the small diameter sleeve head of the reducing rubber sleeve 404 can be sleeved on the needle-shaped air inlet nozzle 403, a fixed steel hoop 405 can be additionally arranged on the outer side of the sleeved part of the small diameter sleeve head and the needle-shaped air inlet nozzle 403, the large diameter sleeve head of the reducing rubber sleeve 404 can be sleeved on the large diameter plug head 302 on the upper part of the rubber plug 3 at the position of the branch pipe conical flask 2, and the fixed steel hoop 405 can be additionally arranged on the outer side of the sleeved part of the large diameter sleeve head and the large diameter plug head 302 on the upper part of the rubber plug 3;

side fixed mounting of reducing rubber sleeve 404 has gas sensor 5, and whether gas sensor 5 can sense gas and leak, gas sensor 5 can be connected with electrified source alarm 10 through the pencil, and when gas sensor 5 sensing when specific gas leakage, electrified source alarm 10 through the pencil connection can report to the police.

When in use: the sampling device is horizontally placed in a region to be sampled, an air pump 6 is started, sampling gas enters a connecting pipe from an air exhaust cover 8 under the action of the air pump 6 and then enters a conical bottle 2 with a branch pipe through the air pump 6 and the connecting pipe, deionized water exceeding a branch pipe connector is contained in the conical bottle 2 with the branch pipe, and at the moment, particles and partial gas substances dissolved in water contained in the gas in the region to be sampled are filtered and retained in the conical bottle 2 with the branch pipe by liquid substances in the conical bottle 2 with the branch pipe; gas substances which are insoluble in water in the gas to be sampled are blown out from the air outlet end of the needle-shaped air inlet nozzle 403 through the needle-shaped air inlet nozzle 403, the gas to be sampled blows open the tail end of the air inlet port in the sampling bag 401 and the cambered surface-shaped diaphragm 402 in the connection part of the gas to be sampled and enters the sampling bag 401 through the non-bonded fixed edge of the cambered surface-shaped diaphragm 402; when the sampling bag 401 collects gas, the analytical balance weighing device 1 simultaneously weighs the particulate matters and the gas substances partially dissolved in water filtered in the branch pipe conical flask 2;

when the filtered particles reach the weight required by sampling, the air pump 6 is turned off, the air blowing into the sampling bag 401 is stopped, the sampling bag 401 expands and presses the cambered membrane 402 under the action of the collected air, the non-bonded fixed edge of the cambered membrane 402 is pressed and attached to the inner part of the joint of the tail end of the air inlet port and the bag body, the inner part of the air inlet port on the sampling bag 401 is sealed, and the collected air is stored in the bag body of the sampling bag 401; the needle-shaped air inlet nozzle 403 fixedly arranged at the air inlet port of the sampling bag 401 is pulled out from the rubber plug 3 at the bottleneck of the conical bottle 2 with the branch pipe together with the sampling bag 401, and the sampling bag in which sampling gas is stored is properly placed;

if the needle-shaped air inlet nozzle 403 and the conical flask with the branch pipe 2 are not tightly sealed during gas sampling, and the air leakage phenomenon occurs, the gas sensor 5 arranged on the side surface of the reducing rubber sleeve 404 can transmit signals to the alarm with the power supply 10, and the alarm with the power supply 10 can give an alarm for prompt; and stopping blowing air into the sampling bag 401, checking the connection tightness between the needle-shaped air inlet nozzle 403 and the conical bottle 2 with the branch pipe, ensuring that the needle-shaped air inlet nozzle 403 is connected with the conical bottle 2 with the branch pipe in a sealing way, and starting the air pump 6 to continuously blow air into the sampling bag 401 for sampling after air leakage does not occur.

The invention solves the problems existing in the prior devices in actual use: the device for sampling partial gas or particulate matters in gas is designed only by considering whether the device is convenient to carry or not, but does not consider the device and a gas collecting bag used by the device, and whether the device is convenient to mount or not in use, so that the devices are large in use limitation and inconvenient to integrally move; 2, when the device is not considered to be used, whether gas leakage or leakage occurs in the sampling process or not is not considered, so that secondary gas pollution is caused, or the weighing and measuring numerical value of the particulate matter is inaccurate; and 3, only the cost of the device is considered, and the cost of related using accessories is not considered in the using process of the device, so that the subsequent sampling using cost of people is higher.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. The utility model provides a portable leak protection gas particulate matter filters gaseous sampling device, its characterized in that is including the exhaust hood, sealed spiro union cap, the connecting pipe, the aspiration pump, take the branch pipe erlenmeyer flask, the rubber buffer, the sampling bag subassembly, analytical balance weighing device and take the sucking disc support, the exhaust hood is connected with the one end of connecting pipe through sealed spiro union cap, the connecting pipe other end is connected with the aspiration pump, the aspiration pump passes through the connecting pipe and is connected with the branch pipe department of taking the branch pipe erlenmeyer flask, the rubber buffer is installed in the bottleneck department of taking the branch pipe erlenmeyer flask, the sampling bag subassembly has the sampling bag, the needle inlet nozzle, the reducing rubber sleeve, the needle inlet nozzle passes the rubber buffer and is connected with the branch pipe erlenmeyer flask, take branch pipe erlenmeyer flask integral.

2. The portable sampling device for filtering gas of particulate matter with air leakage prevention according to claim 1, wherein the air exhaust cover has threads on an inner side thereof, a rubber sealing ring is fixedly mounted on an end of the threads, a joint is provided on an upper end tail portion of the air exhaust cover, one end of the connection pipe is sleeved on the joint on the upper end tail portion of the air exhaust cover, a sealing screw cap is threadedly mounted on an outer side of a joint of the joint and the connection pipe, the other end of the connection pipe is fixedly sleeved on an air inlet of the air exhaust pump, and a sealing screw cap is threadedly mounted on an outer side of a joint of the air inlet of the air exhaust.

3. The portable gas-leakage-preventing particulate matter filtering gas sampling device as claimed in claim 1, wherein the lower portion of the rubber plug is a small-diameter plug, the middle portion of the rubber plug is provided with a step, the step is provided with a groove, the upper portion of the rubber plug is provided with a large-diameter plug, the small-diameter plug at the lower portion of the rubber plug is embedded in the bottle mouth of the conical bottle with the branch pipe, and the bottle mouth of the conical bottle with the branch pipe is embedded in the groove at the step in the middle portion of the rubber plug in an extending sealing.

4. The portable sampling device for filtering gas from particles with air leakage prevention function as claimed in any one of claims 1 to 3, wherein the sampling bag assembly comprises a sampling bag, a needle-shaped air inlet nozzle and a variable diameter rubber sleeve, the sampling bag is provided with an air inlet port, two layers of cambered membranes are arranged inside the sampling bag, one side of each cambered membrane is bonded and fixed, the other side of each cambered membrane can be blown up, each cambered membrane is located inside the joint of the tail end of the air inlet port on the sampling bag and the bag body, the needle-shaped air inlet nozzle is fixedly arranged at the air inlet port of the sampling bag, when the sampling bag assembly is in use, the inside of the bag body of the sampling bag is vacuumized, when gas is blown into the sampling bag from the needle-shaped air inlet nozzle and is ready to enter the sampling bag through the air inlet port on the sampling bag, the cambered membranes inside the joint of the tail end of the air inlet port inside, enter into inside the sampling bag, when needle-like suction nozzle department stops blowing gas, because partial gas has been accumulated in original sampling bag, this partial gas can expand and press the cambered surface shape diaphragm, with the fixed limit of the non-bonding of cambered surface shape diaphragm, press paste in the terminal and bag body junction of inlet port inside, the inlet port is inside sealed on the sampling bag, the gas of gathering is held there the internal portion of bag of sampling bag.

5. The portable gas-leakage-preventing particulate matter filtering gas sampling device as claimed in claim 4, wherein the reducing rubber sleeve has two ends of a small-diameter sleeve head and a large-diameter sleeve head, the small-diameter sleeve head of the reducing rubber sleeve can be sleeved on the needle-shaped air inlet nozzle, a fixed steel hoop can be additionally arranged on the outer side of the sleeved part of the small-diameter sleeve head and the needle-shaped air inlet nozzle, the large-diameter sleeve head of the reducing rubber sleeve can be sleeved on a large-diameter plug head on the upper part of the rubber plug at the tapered bottleneck of the branch pipe, and the fixed steel hoop can be additionally arranged on the outer side of the sleeved part of the large-diameter sleeve head and the large-;