A gas constant-rate split flow sampler

Abstract

The invention discloses a gas constant-speed shunt sampler, and the invention relates to the field of gas detection technology. The invention comprises a sampling tube, a side of the sampling tube close to the shunt tube is fixedly connected to the outer surface of a connecting plate, a side outer surface of a plurality of shunt tubes close to the sampling tube is fixedly connected to the inner wall of the connecting plate, an end of the shunt tube away from the connecting plate is fixedly connected to a de-impurity mechanism, an end of the de-impurity mechanism away from the shunt tube is fixedly connected to the input end of an air pump, an end of an inflation tube close to the de-impurity mechanism is fixedly connected to the output end of the air pump, and the outer surfaces of the de-impurity mechanism, the air pump and the inflation tube are all fixedly connected to the inner wall of an outer shell, a plurality of shunt tubes are provided, and multiple groups of samples can be obtained, thereby providing a control group, so that the detection and analysis results are more accurate, and the sampling tube with a conical design can capture air at a sampling position in a larger range, expand the sampling range, and make the sampling and analysis results more representative.

Description

Technical Field

[0001] The invention relates to the technical field of gas detection, and in particular to a gas constant-speed split flow sampler. Background Art

[0002] An atmospheric sampler is an instrument or device for collecting atmospheric pollutants or polluted atmosphere. There are many types of atmospheric samplers. According to the objects collected, they can be divided into two types: gas samplers and particulate samplers. According to the places of use, they can be divided into environmental samplers and indoor samplers, such as samplers used in factory workshops, and pollution source samplers, such as chimney samplers. In addition, there are special-purpose atmospheric samplers, such as samplers that collect gas and particulate matter at the same time, which can collect sulfur dioxide and particulate matter in the atmosphere, or hydrogen fluoride and particulate matter, etc., which is convenient for studying the relationship between sulfur or fluorine in gaseous and solid substances, and samplers for collecting bacteria in the air;

[0003] When using a gas sampler, it is necessary to eliminate the influence of unnecessary variables in the air, namely solid particles in the air, moisture in the air, etc., so as to obtain clean air for detection, and it is necessary to set up multiple sets of experiments to eliminate contingency, which means that multiple sets of samples need to be collected. Most of the existing samplers cannot collect multiple sets of samples at one time, so we proposed a gas constant-rate diversion sampler. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a gas constant-rate split flow sampler, comprising:

[0005] A housing, wherein a handle is disposed on the exterior of the housing;

[0006] A sampling device, the sampling device having three sets of independent sampling structures for obtaining multiple sets of samples;

[0007] The outer surface of the shell is fixedly connected to the end of the handle, the end of the handle away from the shell is fixedly connected to the outside of the sampling device, and the outer surface of the sampling device is fixedly connected to the inner wall of the shell;

[0008] Wherein, the sampling device comprises:

[0009] A sampling cylinder having a conical structure for sampling gases and particles in the air;

[0010] A shunt tube, a plurality of which are provided for collecting a plurality of groups of samples, and a connecting plate provided at the end of the shunt tube;

[0011] A de-powdering mechanism, the de-powdering mechanism having a de-powdering structure for processing particulate matter and moisture in the air, and a shock absorbing mechanism arranged outside the de-powdering mechanism;

[0012] An air filling tube, the air filling tube is used to be connected to the gas sampling bag, and an air pump is arranged at the end of the air filling tube;

[0013] The side of the sampling tube close to the shunt tube is fixedly connected to the outer surface of the connecting plate, the outer surfaces of the side of the plurality of shunt tubes close to the sampling tube are fixedly connected to the inner wall of the connecting plate, the end of the shunt tube away from the connecting plate is fixedly connected to the impurity removal mechanism, the end of the impurity removal mechanism away from the shunt tube is fixedly connected to the input end of the air pump, the end of the inflation tube close to the impurity removal mechanism is fixedly connected to the output end of the air pump, and the outer surfaces of the impurity removal mechanism, the air pump and the inflation tube are all fixedly connected to the inner wall of the outer shell, the outer surface of the shock absorbing mechanism is fixedly connected to the side of the handle away from the outer shell. When sampling, the gas sampling bag is fixed to the inside of the inflation tube, and the operator Hold the handle, align the sampling tube with the sampling position, start the air pump, and the gas enters the shunt tube through the sampling tube, and then passes through the impurity removal mechanism corresponding to the different shunt tubes, and then enters the inflation tube through the air pump to fill the sampling bag to complete the sampling. The impurity removal mechanism can remove particulate matter and moisture in the gas to obtain a clean gas sample, thereby improving the purity of the sample and avoiding the influence of impurities on the sampling results. Several shunt tubes are set to obtain multiple groups of samples, so as to set up a control group, so that the detection and analysis results are more accurate, and the conical design of the sampling tube can capture the air at the sampling position in a larger range, expand the sampling range, and make the sampling and analysis results more representative.

[0014] Furthermore, the impurity removal mechanism is provided with a number corresponding to the number of shunt tubes, the air pump is provided with a number corresponding to the number of impurity removal mechanisms, and the several air pumps are exactly the same, the number of inflation tubes is provided with a number corresponding to the number of air pumps, and the shunt tubes, impurity removal mechanisms, air pumps, and inflation tubes are provided correspondingly. The air enters different impurity removal mechanisms through the several shunt tubes for impurity removal, and then enters the inflation tube through the air pump, and is finally filled into the gas sampling bag. The shunt tubes, impurity removal mechanisms, air pumps, and inflation tubes are provided correspondingly, so that the sampled gases do not interfere with each other, and multiple independent samples are obtained to set up a control group to avoid irrelevant variables from affecting the test results. The same air pump means that the pumping effect of the air pump is the same, the sampling is the same constant speed sampling, and the inflation amount of the gas sampling bag is also the same within the same time, so as to obtain samples of the same volume and eliminate the influence of gas volume.

[0015] Furthermore, a clamping ring is provided on the side of the inflation tube away from the air pump, and the clamping ring is made of rubber material. The outer surface of the clamping ring is fixedly connected to the inner wall of the inflation tube, and the cross-section of the clamping ring is arranged in an inferior arc shape. When the gas sampling bag is installed, the gas sampler is inserted into the inflation tube, and the clamping ring is squeezed open. Since the clamping ring is arranged in a rubber material, it can be attached to the tube body of the sampling bag, and the elasticity of the rubber material can clamp the pipeline to avoid gas leakage. The inferior arc-shaped clamping ring can obtain a larger deformation within a limited space, and can fix pipelines of different diameters while providing a greater deformation recovery elastic force, so that the fixing and sealing effect is better, and gas leakage is further avoided.

[0016] Furthermore, a diversion groove is provided on the side of the sampling barrel away from the diversion tube, and the diversion groove runs through the sampling barrel. A plurality of diversion grooves are provided along the circumference of the sampling barrel, and the number of the diversion grooves corresponds to the number of diversion tubes. The opening of the diversion groove makes it possible to have no platform between the sampling barrel and the diversion tube, thereby preventing particulate matter in the air from being retained inside the sampling barrel, so that the particulate matter is completely collected by the impurity removal mechanism, so that the relationship between the particulate matter and the gas can be reflected.

[0017] Furthermore, the impurity removal mechanism includes an impurity removal pipe, which is threadedly connected to a side of the shunt pipe away from the connecting plate, a impurity removal component is arranged inside the impurity removal pipe, a dewatering pipe is threadedly connected to a side of the impurity removal pipe away from the shunt pipe, a side of the dewatering pipe away from the impurity removal pipe is fixedly connected to an input end of the air pump, a dewatering component is arranged inside the dewatering pipe, and air passes through the shunt pipe in sequence through the impurity removal pipe, the dewatering pipe, the air pump, and the inflation pipe, and is finally filled into the gas sampling bag by the inflation pipe, the impurity removal component inside the impurity removal pipe is used to remove and retain particulate impurities and to analyze the relationship between particulate matter and gas, and the dewatering component inside the dewatering pipe is used to remove moisture from the air, thereby obtaining clean air, eliminating the influence of redundant variables, and obtaining more accurate analysis results.

[0018] Furthermore, the impurity removal component includes conical plates, and two groups of conical plates are arranged inside the impurity removal pipe. The number of conical plates in each group is symmetrically arranged at two, and the two conical plates are arranged in a drum shape. The outer surface of the conical plate is slidably connected to the inner wall of the impurity removal pipe. A groove body is provided on the side where the two conical plates in each group are close to each other. A plurality of groove bodies are arranged along the circumference of the conical plates. The air enters the impurity removal pipe, and then passes through the two groups of conical plates in turn, and finally enters the water removal pipe. Since the two conical plates in each group are arranged in a drum shape, when the air passes through one conical plate and enters the next conical plate, it will hit the protruding side of the conical plate. Large impurity particles in the air collide with the conical plate, and their kinetic energy is consumed by the collision, so that they fall to the gap between the two conical plates, thereby achieving the purpose of processing large impurities. The air enters the larger cavity from the small holes in the conical plate, which causes the air speed to change. At the same time, the air hits the next conical plate, which causes the direction of the air speed to change, thereby generating turbulent airflow between the two conical plates, driving the impurities to continuously slide on the surface of the conical plate. The opened groove can increase the roughness of the conical plate, increase the kinetic energy loss of impurities when moving on the surface of the conical plate, thereby accelerating the falling of large impurities and further enhancing the impurity removal effect.

[0019] Furthermore, a filter plate is arranged at the interval between the two groups of the conical plates, the shape of the filter plate is arranged to be wavy, and the outer surface of the filter plate is slidably connected to the inner wall of the impurity removal pipe, and a plurality of fixing rods are arranged inside the impurity removal pipe, the fixing rods penetrate a plurality of conical plates and the filter plates, and the outer surface of the fixing rods is fixedly connected to the conical plates and the inner wall of the filter plates, the air contacts the filter plates, the filter plates adsorb small particles in the air, and finally the air without particulate impurities enters the next group of conical plates, and the conical plates perform impurity removal again to ensure that the particulate matter is completely removed In addition, when air circulates between the conical plates, due to the structure of the conical plates, the direction and size of the speed will change, causing vibration. The vibration is transmitted to the filter plate through the fixed rod, thereby shaking off the impurities adsorbed on the surface of the filter plate to avoid clogging of the filter plate. Setting two sets of conical plates can also enhance the vibration effect. The filter plate is set to a wave shape. The wave shape allows the filter plate to obtain a larger contact area with the particulate matter, which can improve the filtering effect of the filter plate and obtain the purest air. The conical plate removes large particles of impurities in advance, which can reduce the impurity removal burden of the filter plate and avoid clogging of the filter plate.

[0020] Furthermore, the dewatering assembly includes a dewatering plate, which is arranged in a zigzag shape inside the dewatering pipe, and the outer surface of the dewatering plate is fixedly connected to the inner wall of the dewatering pipe. Air circulates inside the dewatering pipe and continuously hits the dewatering plate, causing moisture in the air to condense, thereby removing moisture in the air and obtaining clean air. The dewatering plate is arranged in a folded shape, so that the moisture in the air obtains multiple non-parallel impact surfaces, thereby enhancing the dewatering effect.

[0021] Furthermore, dewatering holes are provided on the outer surface of the dewatering plate, and the dewatering holes are staggered along the shape of the dewatering plate. A water absorbing plate is fixedly connected to the recessed part of the dewatering plate, and the water absorbing plate is made of a water absorbing material. Air enters the dewatering holes and then hits the other surface of the dewatering plate. The water condenses and slides along the dewatering plate to the water absorbing plate. The water absorbing plate absorbs the water to prevent the water from being carried away by the air. Since the dewatering holes are staggered, the air will fully collide with the dewatering plate before passing through the dewatering holes, thereby enhancing the dewatering effect.

[0022] Furthermore, the shock-absorbing mechanism includes a shock-absorbing inner ring, the inner wall of the shock-absorbing inner ring is fixedly connected to the outer surfaces of several debris removal tubes, the outer sleeve of the shock-absorbing inner ring is provided with a shock-absorbing outer ring, and the shock-absorbing outer ring is fixedly connected to the side of the outer shell close to the sampling tube, and the end of the handle away from the outer shell is fixedly connected to the outer surface of the shock-absorbing outer ring, and a plurality of springs are arranged at the interval between the shock-absorbing inner ring and the shock-absorbing outer ring, and the two ends of the plurality of springs are respectively fixedly connected to the sides of the shock-absorbing inner ring and the shock-absorbing outer ring close to each other, the conical plate vibrates, driving the debris removal tube to vibrate, driving the shock-absorbing inner ring to vibrate, the vibration is transmitted to the spring, the spring shakes, thereby consuming the kinetic energy of the vibration, avoiding the operator's unstable grip caused by the vibration, avoiding the sampling tube from leaving the sampling range during small-range sampling, and at the same time avoiding the vibration that accelerates the operator's fatigue, making the sampler more labor-saving to use.

[0023] The present invention has the beneficial effects:

[0024] The present invention provides a sampling device, and a plurality of corresponding shunt tubes, impurity removal mechanisms, air pumps, and inflation tubes are provided so that the sampled gases do not interfere with each other, and multiple independent samples are obtained for setting a control group to avoid the influence of irrelevant variables on the test results. The same air pump means that the pumping effect of the air pump is the same, and the sampling is the same constant-speed sampling. In the same time, the inflation amount of the gas sampling bag is also the same, so that the same volume of samples is obtained, and the influence of the gas volume is eliminated. The conical design of the sampling barrel can capture the air at the sampling position in a larger range, expand the sampling range, and make the sampling analysis result more representative. The opening of the shunt slot makes there is no platform between the sampling barrel and the shunt tube, so as to avoid the particulate matter in the air being left inside the sampling barrel, so that the particulate matter is completely collected by the impurity removal mechanism, so that the relationship between the particulate matter and the gas can be reflected.

[0025] The present invention provides a clamping ring. When the gas sampling bag is installed, the gas sampler is inserted into the inflation tube, and the clamping ring is squeezed to open. Since the clamping ring is made of rubber material, it can adhere to the tube body of the sampling bag, and the elasticity of the rubber material can clamp the tube to avoid gas leakage. The inferior bow-shaped clamping ring can obtain a larger deformation within a limited space, and can fix tubes of different diameters while providing a larger deformation recovery elastic force, so that the fixing and sealing effect is better, and gas leakage is further avoided.

[0026] The present invention arranges conical plates. Since each group of two conical plates is arranged in a drum shape, when air passes through one conical plate and enters the next conical plate, it will hit the protruding side of the conical plate, so that large impurities in the air hit the conical plate, and the kinetic energy of the large impurities is consumed by the impact, so that they fall to the gap between the two conical plates, thereby achieving the purpose of processing large impurities. The air enters the larger cavity from the small hole of the conical plate, which will cause the air speed to change. At the same time, the air hits the next conical plate, which will cause the air speed direction to change, thereby generating turbulent airflow between the two conical plates, driving the impurities The grooves that continuously slide on the surface of the conical plate can increase the roughness of the conical plate and increase the kinetic energy loss of impurities when moving on the surface of the conical plate, thereby accelerating the falling of large particles of impurities and further enhancing the impurity removal effect. The conical plate performs impurity removal again to ensure that the particles are completely removed. When the air flows between the conical plates, the direction and size of the speed will change due to the structure of the conical plates, causing vibration. The vibration is transmitted to the filter plate through the fixed rod, thereby shaking off the impurities adsorbed on the surface of the filter plate to avoid clogging of the filter plate. Setting two sets of conical plates can also enhance the vibration effect.

[0027] The present invention sets a dewatering component, and air circulates inside the dewatering pipe and continuously hits the dewatering plate, so that the moisture in the air condenses, thereby removing the moisture in the air and obtaining clean air. The dewatering plate is set in a discounted shape, so that the moisture in the air obtains multiple non-parallel impact surfaces, thereby enhancing the dewatering effect. The water absorption plate absorbs the moisture to prevent the moisture from being carried away by the air. Since the dewatering holes are staggered, the air will fully collide with the dewatering plate before passing through the dewatering holes, thereby enhancing the dewatering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of a gas constant-rate split flow sampler according to the present invention;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of the housing of the present invention;

[0030] Figure 3 This is a schematic diagram of the cross-sectional structure of the inflation tube of the present invention;

[0031] Figure 4 It is a schematic diagram of the diverter trough structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of the impurity removal mechanism of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the impurity removal component of the present invention;

[0034] Figure 7 It is a schematic diagram of the filter plate structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the water removal component of the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the shock absorbing mechanism of the present invention.

[0037] In the figure: 1. shell; 2. handle; 3. sampling device; 31. sampling tube; 32. diversion trough; 33. diversion pipe; 34. connecting plate; 35. impurity removal mechanism; 351. impurity removal pipe; 352. water removal pipe; 353. impurity removal assembly; 3531. conical plate; 3532. trough body; 3533. filter plate; 3534. fixing rod; 354. water removal assembly; 3541. water removal plate; 3542. water removal hole; 3543. water absorption plate; 36. air pump; 37. inflation pipe; 38. clamping ring; 39. shock absorbing mechanism; 391. shock absorbing outer ring; 392. spring; 393. shock absorbing inner ring. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0039] Example 1, please refer to Figure 1-Figure 4 The present invention is a gas constant-rate split flow sampler, comprising:

[0040] A housing 1, wherein a handle 2 is disposed on the outside of the housing 1;

[0041] A sampling device 3, the sampling device 3 has three sets of independent sampling structures for obtaining multiple sets of samples;

[0042] The outer surface of the housing 1 is fixedly connected to the end of the handle 2, and the end of the handle 2 away from the housing 1 is fixedly connected to the outside of the sampling device 3, and the outer surface of the sampling device 3 is fixedly connected to the inner wall of the housing 1;

[0043] Wherein, the sampling device 3 comprises:

[0044] A sampling tube 31, which has a conical structure and is used to sample gases and particles in the air;

[0045] A shunt tube 33, which is provided in plurality for collecting multiple groups of samples, and a connecting plate 34 provided at the end of the shunt tube 33;

[0046] The impurity removal mechanism 35 has an impurity removal structure for processing particulate matter and moisture in the air, and a shock absorbing mechanism 39 disposed outside the impurity removal mechanism 35;

[0047] An air filling tube 37, the air filling tube 37 is used to connect with the gas sampling bag, and an air pump 36 is arranged at the end of the air filling tube 37;

[0048] The side of the sampling tube 31 close to the shunt tube 33 is fixedly connected to the outer surface of the connecting plate 34, the outer surfaces of the side of the plurality of shunt tubes 33 close to the sampling tube 31 are fixedly connected to the inner wall of the connecting plate 34, the end of the shunt tube 33 away from the connecting plate 34 is fixedly connected to the impurity removal mechanism 35, the end of the impurity removal mechanism 35 away from the shunt tube 33 is fixedly connected to the input end of the air pump 36, the end of the inflation tube 37 close to the impurity removal mechanism 35 is fixedly connected to the output end of the air pump 36, and the outer surfaces of the impurity removal mechanism 35, the air pump 36 and the inflation tube 37 are all fixedly connected to the inner wall of the outer shell 1, the outer surface of the shock absorbing mechanism 39 is fixedly connected to the side of the handle 2 away from the outer shell 1, when sampling, the gas sampling bag is fixed to the inside of the inflation tube 37, and the operation The operator holds the handle 2, aligns the sampling tube 31 with the sampling position, starts the air pump 36, and the gas enters the shunt tube 33 through the sampling tube 31, and then passes through the impurity removal mechanism 35 corresponding to the different shunt tubes 33, and then enters the filling tube 37 through the air pump 36 to fill the sampling bag to complete the sampling. The impurity removal mechanism 35 can remove particulate matter and moisture in the gas to obtain a clean gas sample, thereby improving the purity of the sample and preventing impurities from affecting the sampling results. Several shunt tubes 33 are provided to obtain multiple groups of samples, thereby setting up a control group, making the detection and analysis results more accurate, and the conical design of the sampling tube 31 can capture the air at the sampling position in a larger range, expand the sampling range, and make the sampling and analysis results more representative.

[0049] There are several impurity removal mechanisms 35 corresponding to the number of shunt tubes 33, several air pumps 36 corresponding to the number of impurity removal mechanisms 35, and several air pumps 36 are exactly the same. There are several inflation tubes 37 corresponding to the number of air pumps 36. Several shunt tubes 33, impurity removal mechanisms 35, air pumps 36, and inflation tubes 37 are correspondingly arranged. Air enters different impurity removal mechanisms 35 through several shunt tubes 33 for impurity removal, and then enters the inflation tube 37 through the air pump 36, and is finally filled into the gas sampling bag. There are several shunt tubes 33, impurity removal mechanisms 35, air pumps 36, and inflation tubes 37 correspondingly arranged, so that the sampled gases do not interfere with each other, and multiple independent samples are obtained to set up a control group to avoid irrelevant variables from affecting the test results. The same air pump 36 means that the pumping effect of the air pump 36 is the same, the sampling is the same constant speed sampling, and the inflation amount of the gas sampling bag is also the same within the same time, so as to obtain samples of the same volume and eliminate the influence of gas volume.

[0050] A clamping ring 38 is provided on the side of the inflation tube 37 away from the air pump 36. The clamping ring 38 is made of rubber material. The outer surface of the clamping ring 38 is fixedly connected to the inner wall of the inflation tube 37, and the cross-section of the clamping ring 38 is arranged in an inferior arc shape. When installing the gas sampling bag, the gas sampler is inserted into the inflation tube 37, and the clamping ring 38 is squeezed open. Since the clamping ring 38 is set to be made of rubber material, it can be attached to the tube body of the sampling bag, and the elasticity of the rubber material can clamp the pipeline to avoid gas leakage. The inferior arc-shaped clamping ring 38 can obtain a larger deformation within a limited space, and can fix pipelines of different diameters while providing a greater deformation recovery elastic force, so that the fixing and sealing effect is better, and gas leakage is further avoided.

[0051] A diverter groove 32 is provided on one side of the sampling barrel 31 away from the diverter tube 33. The diverter groove 32 runs through the sampling barrel 31. A plurality of diverter grooves 32 are provided along the circumference of the sampling barrel 31, and the number of diverter grooves 32 corresponds to the number of diverter tubes 33. The opening of the diverter grooves 32 makes it possible for there to be no platform between the sampling barrel 31 and the diverter tube 33, thereby preventing particulate matter in the air from being retained inside the sampling barrel 31, so that the particulate matter is completely collected by the impurity removal mechanism 35, so that the relationship between the particulate matter and the gas can be reflected.

[0052] Example 2, please refer to Figure 4-Figure 9The impurity removal mechanism 35 includes an impurity removal pipe 351, which is threadedly connected to the side of the shunt pipe 33 away from the connecting plate 34, and an impurity removal component 353 is arranged inside the impurity removal pipe 351. A dewatering pipe 352 is threadedly connected to the side of the impurity removal pipe 351 away from the shunt pipe 33, and the side of the dewatering pipe 352 away from the impurity removal pipe 351 is fixedly connected to the input end of the air pump 36, and a dewatering component 354 is arranged inside the dewatering pipe 352. The air passes through the shunt pipe 33 in turn through the impurity removal pipe 351, the dewatering pipe 352, the air pump 36, and the inflation pipe 37, and is finally filled into the gas sampling bag by the inflation pipe 37. The impurity removal component 353 inside the impurity removal pipe 351 is used to remove impurities and retain particulate impurities, so as to analyze the relationship between particulate matter and gas. The dewatering component 354 inside the dewatering pipe 352 is used to remove moisture in the air, so as to obtain clean air, eliminate the influence of unnecessary variables, and obtain more accurate analysis results.

[0053] The impurity removal component 353 includes a conical plate 3531. Two groups of conical plates 3531 are arranged inside the impurity removal pipe 351. Each group of conical plates 3531 is symmetrically provided with two conical plates 3531, and the two conical plates 3531 are arranged in a drum shape. The outer surface of the conical plate 3531 is slidably connected to the inner wall of the impurity removal pipe 351. A groove body 3532 is opened on the side close to each other of each group of two conical plates 3531. A plurality of groove bodies 3532 are arranged along the circumference of the conical plates 3531. When air enters the impurity removal pipe 351, it passes through the two groups of conical plates 3531 in sequence and finally enters the water removal pipe 352. Since each group of two conical plates 3531 is arranged in a drum shape, when air passes through one conical plate 3531 and enters the next conical plate 3531, it will hit the conical plate 35 The protruding side of 31 causes large impurity particles in the air to collide with the conical plate 3531. The kinetic energy of the large impurity particles is consumed by the collision, and the impurities fall to the gap between the two conical plates 3531, thereby achieving the purpose of processing large impurity particles. The air enters the larger cavity from the small hole of the conical plate 3531, which causes the air speed to change. At the same time, the air hits the next conical plate 3531, which causes the direction of the air speed to change, thereby generating turbulent airflow between the two conical plates 3531, driving the impurities to continuously slide on the surface of the conical plate 3531. The groove body 3532 can increase the roughness of the conical plate 3531, increase the kinetic energy loss of the impurities when moving on the surface of the conical plate 3531, thereby accelerating the falling of large impurities and further enhancing the impurity removal effect.

[0054] A filter plate 3533 is provided at the interval between the two groups of conical plates 3531. The shape of the filter plate 3533 is set to be wavy, and the outer surface of the filter plate 3533 is slidably connected to the inner wall of the impurity removal pipe 351. A plurality of fixing rods 3534 are provided inside the impurity removal pipe 351. The fixing rods 3534 penetrate the plurality of conical plates 3531 and the filter plates 3533, and the outer surface of the fixing rods 3534 is fixedly connected to the conical plates 3531 and the inner walls of the filter plates 3533. The air contacts the filter plates 3533, and the filter plates 3533 adsorb small particles in the air. Finally, the air without particulate impurities enters the next group of conical plates 3531, and the conical plates 3531 perform impurity removal again to ensure that the particulate matter is completely removed. When air circulates between the conical plates 3531, due to the structure of the conical plates 3531, the direction and magnitude of the speed will change, causing vibration. The vibration is transmitted to the filter plate 3533 through the fixing rod 3534, thereby shaking off the impurities adsorbed on the surface of the filter plate 3533 to avoid clogging of the filter plate 3533. The two groups of conical plates 3531 can also enhance the vibration effect. The filter plate 3533 is arranged in a wavy shape. The wavy shape enables the filter plate 3533 to obtain a larger contact area with the particulate matter, which can improve the filtering effect of the filter plate 3533 and obtain the purest air. The conical plate 3531 removes large particles of impurities in advance, which can reduce the impurity removal burden of the filter plate 3533 and avoid clogging of the filter plate 3533.

[0055] The dewatering assembly 354 includes a dewatering plate 3541, which is arranged in a zigzag shape inside the dewatering pipe 352, and the outer surface of the dewatering plate 3541 is fixedly connected to the inner wall of the dewatering pipe 352. Air circulates inside the dewatering pipe 352 and continuously hits the dewatering plate 3541, causing the moisture in the air to condense, thereby removing the moisture in the air and obtaining clean air. The dewatering plate 3541 is arranged in a folded shape, so that the moisture in the air obtains multiple non-parallel impact surfaces, thereby enhancing the dewatering effect.

[0056] The outer surface of the dewatering plate 3541 is provided with dewatering holes 3542, and the dewatering holes 3542 are staggered along the shape of the dewatering plate 3541. The depression of the dewatering plate 3541 is fixedly connected with a water absorbing plate 3543, and the water absorbing plate 3543 is made of a water absorbing material. Air enters the dewatering holes 3542 and then hits the other surface of the dewatering plate 3541. The water condenses and slides along the dewatering plate 3541 to the water absorbing plate 3543. The water absorbing plate 3543 absorbs the water to prevent the water from being carried away by the air. Since the dewatering holes 3542 are staggered, the air will fully hit the dewatering plate 3541 before passing through the dewatering holes 3542, thereby enhancing the dewatering effect.

[0057] The shock absorbing mechanism 39 includes a shock absorbing inner ring 393, the inner wall of the shock absorbing inner ring 393 is fixedly connected to the outer surface of the plurality of impurity removal tubes 351, the outer sleeve of the shock absorbing inner ring 393 is provided with a shock absorbing outer ring 391, and the shock absorbing outer ring 391 is fixedly connected to the side of the housing 1 close to the sampling tube 31, and the end of the handle 2 away from the housing 1 is fixedly connected to the outer surface of the shock absorbing outer ring 391, and a plurality of springs 392 are arranged at the interval between the shock absorbing inner ring 393 and the shock absorbing outer ring 391, and the two ends of the plurality of springs 392 are connected to the outer surface of the plurality of springs 392. The ends are respectively fixedly connected to the sides of the shock-absorbing inner ring 393 and the shock-absorbing outer ring 391 which are close to each other. The conical plate 3531 vibrates, which drives the debris removal pipe 351 to vibrate, and drives the shock-absorbing inner ring 393 to vibrate. The vibration is transmitted to the spring 392, and the spring 392 shakes, thereby consuming the kinetic energy of the vibration, avoiding the operator's unstable grip caused by the vibration, and avoiding the sampling tube 31 from leaving the sampling range when sampling in a small range. At the same time, the vibration can prevent the operator from being fatigued, making the use of the sampler more labor-saving.

[0058] When in use, the gas sampling bag is fixed to the inside of the inflation tube 37, the operator holds the handle 2, aligns the sampling tube 31 with the sampling position, starts the air pump 36, and the gas enters the shunt tube 33 through the sampling tube 31. The air passes through the shunt tube 33 in turn through the impurity removal tube 351, the water removal tube 352, the air pump 36, and the inflation tube 37, and is finally filled into the gas sampling bag by the inflation tube 37;

[0059] The air enters the impurity removal pipe 351, and then passes through a group of conical plates 3531. The air contacts the filter plate 3533. The filter plate 3533 adsorbs small particles in the air. Finally, the air without particulate impurities enters the next group of conical plates 3531. The conical plates 3531 perform impurity removal again to ensure that the particulate matter is completely removed, and finally enters the water removal pipe 352. Since each group of two conical plates 3531 is arranged in a drum shape, when the air passes through one conical plate 3531 and enters the next conical plate 3531, it will hit the protruding side of the conical plate 3531, so that large particles of impurities in the air hit the conical plate 3531. The kinetic energy of the large particles of impurities is consumed by the collision, and they fall into the gap between the two conical plates 3531, thereby achieving the purpose of processing large particles of impurities. Subsequently, the air circulates inside the water removal pipe 352, continuously hitting the water removal plate 3541, so that the moisture in the air condenses, thereby removing the moisture in the air and obtaining clean air.

[0060] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A gas constant flow split sampler, characterized in that: include: A housing (1), wherein a handle (2) is provided on the outside of the housing (1); A sampling device (3), the sampling device (3) having three sets of independent sampling structures for obtaining multiple sets of samples; The outer surface of the housing (1) is fixedly connected to the end of the handle (2), the end of the handle (2) away from the housing (1) is fixedly connected to the outside of the sampling device (3), and the outer surface of the sampling device (3) is fixedly connected to the inner wall of the housing (1); Wherein, the sampling device (3) comprises: A sampling cylinder (31), the sampling cylinder (31) having a conical structure, and used for sampling gases and particulate matter in the air; A shunt tube (33), wherein a plurality of shunt tubes (33) are provided for collecting a plurality of groups of samples, and a connecting plate (34) provided at an end of the shunt tube (33); An impurity removal mechanism (35), the impurity removal mechanism (35) having an impurity removal structure for processing particulate matter and moisture in the air, and a shock absorbing mechanism (39) arranged outside the impurity removal mechanism (35); An air filling tube (37) used to be connected to a gas sampling bag, and an air pump (36) arranged at the end of the air filling tube (37); The side of the sampling tube (31) close to the shunt tube (33) is fixedly connected to the outer surface of the connecting plate (34); the outer surfaces of a plurality of the shunt tubes (33) close to the sampling tube (31) are fixedly connected to the inner wall of the connecting plate (34); the end of the shunt tube (33) away from the connecting plate (34) is fixedly connected to the impurity removal mechanism (35); the end of the impurity removal mechanism (35) away from the shunt tube (33) is fixedly connected to the input end of the air pump (36); the end of the inflation tube (37) close to the impurity removal mechanism (35) is fixedly connected to the output end of the air pump (36); the outer surfaces of the impurity removal mechanism (35), the air pump (36) and the inflation tube (37) are all fixedly connected to the inner wall of the outer shell (1); and the outer surface of the shock absorbing mechanism (39) is fixedly connected to the side of the handle (2) away from the outer shell (1); The impurity removal mechanism (35) comprises an impurity removal pipe (351), the impurity removal pipe (351) being threadedly connected to a side of the flow dividing pipe (33) away from the connecting plate (34), an impurity removal assembly (353) being arranged inside the impurity removal pipe (351), a water removal pipe (352) being threadedly connected to a side of the impurity removal pipe (351) away from the flow dividing pipe (33), a side of the water removal pipe (352) away from the impurity removal pipe (351) being fixedly connected to an input end of an air pump (36), and a water removal assembly (354) being arranged inside the water removal pipe (352); The impurity removal component (353) comprises a conical plate (3531), wherein two groups of the conical plates (3531) are arranged inside the impurity removal tube (351), wherein each group of the conical plates (3531) is symmetrically provided with two conical plates (3531), and the two conical plates (3531) are arranged in a drum shape, wherein the outer surface of the conical plate (3531) is slidably connected to the inner wall of the impurity removal tube (351), and a groove body (3532) is provided on a side where the two conical plates (3531) in each group are close to each other, and a plurality of the groove bodies (3532) are arranged along the circumference of the conical plate (3531); A filter plate (3533) is arranged at the interval between the two groups of conical plates (3531); the shape of the filter plate (3533) is set to be wavy, and the outer surface of the filter plate (3533) is slidably connected to the inner wall of the impurity removal pipe (351); a plurality of fixing rods (3534) are arranged inside the impurity removal pipe (351); the fixing rods (3534) penetrate the plurality of conical plates (3531) and the filter plate (3533), and the outer surface of the fixing rod (3534) is fixedly connected to the conical plate (3531) and the inner wall of the filter plate (3533); The dewatering assembly (354) comprises a dewatering plate (3541), the dewatering plate (3541) being arranged in a broken line shape inside the dewatering pipe (352), and the outer surface of the dewatering plate (3541) being fixedly connected to the inner wall of the dewatering pipe (352).

2. A gas constant flow split sampler according to claim 1, characterized in that: The impurity removal mechanisms (35) are provided in a number corresponding to the number of the shunt pipes (33); the air pumps (36) are provided in a number corresponding to the number of the impurity removal mechanisms (35), and the air pumps (36) are completely identical; the number of the inflation pipes (37) is provided in a number corresponding to the number of the air pumps (36); and the shunt pipes (33), the impurity removal mechanisms (35), the air pumps (36), and the inflation pipes (37) are provided in a number corresponding to each other.

3. A gas constant flow split sampler according to claim 2, characterized in that: A clamping ring (38) is provided on the side of the inflation tube (37) away from the air pump (36); the clamping ring (38) is made of rubber material; the outer surface of the clamping ring (38) is fixedly connected to the inner wall of the inflation tube (37); and the cross section of the clamping ring (38) is arranged in an inferior arc shape.

4. A gas constant flow split sampler according to claim 3, characterized in that: A diversion groove (32) is provided on a side of the sampling barrel (31) away from the diversion tube (33), the diversion groove (32) runs through the sampling barrel (31), a plurality of the diversion grooves (32) are provided along the circumference of the sampling barrel (31), and the number of the diversion grooves (32) corresponds to the number of the diversion tubes (33).

5. A gas constant flow split sampler according to claim 1, characterized in that: The outer surface of the dewatering plate (3541) is provided with dewatering holes (3542), and the dewatering holes (3542) are staggered along the shape of the dewatering plate (3541). A water absorbing plate (3543) is fixedly connected to the concave portion of the dewatering plate (3541), and the water absorbing plate (3543) is made of a water absorbing material.

6. A gas constant flow split sampler according to claim 1, characterized in that: The shock absorbing mechanism (39) comprises a shock absorbing inner ring (393), the inner wall of which is fixedly connected to the outer surfaces of a plurality of impurity removal tubes (351), the outer sleeve of the shock absorbing inner ring (393) is provided with a shock absorbing outer ring (391), and the shock absorbing outer ring (391) is fixedly connected to a side of the outer shell (1) close to the sampling tube (31), and the end of the handle (2) away from the outer shell (1) is fixedly connected to the outer surface of the shock absorbing outer ring (391), and a plurality of springs (392) are arranged at the interval between the shock absorbing inner ring (393) and the shock absorbing outer ring (391), and the two ends of the plurality of springs (392) are respectively fixedly connected to the sides of the shock absorbing inner ring (393) and the shock absorbing outer ring (391) close to each other.

Images