Exhaust gas emission sampling tube detection sampling mechanism and exhaust gas emission sampling device

Abstract

The present invention discloses a waste gas emission sampling tube detection sampling mechanism and a waste gas emission sampling device. The waste gas emission sampling tube detection sampling mechanism comprises: a first clamping component, a second clamping component and a clamping drive assembly. The first clamping component is provided with a first ventilation clamping port and a first ventilation connection port that are interpenetrating with each other; the second clamping component is provided with a second ventilation clamping port and a second ventilation connection port that are interpenetrating with each other, and the second ventilation clamping port and the first ventilation clamping port are arranged with a horizontal relative interval. The waste gas emission sampling device adopts the above-mentioned waste gas emission sampling tube detection sampling mechanism to clamp and fix the sampling tube, and the two ends of the sampling tube are respectively connected to the first ventilation clamping port and the second ventilation clamping port. The clamping drive assembly makes the first ventilation clamping port laterally away from the second ventilation connection port. At this time, the sampling tube can automatically fall, realizing automatic sampling of the sampling tube, reducing the labor intensity of workers, and being safe, reliable and accurate.

Description

Technical Field

[0001] The invention relates to the technical field of exhaust gas detection, and in particular to an exhaust gas emission sampling tube detection sampling mechanism and an exhaust gas emission sampling device. Background Art

[0002] When testing industrial waste gas, the existing technology generally extracts samples through a sampling tube and then conducts testing. The existing technology all adopts the method of manual sampling, and the sampling tube stays in the chimney for a set time, which requires the staff to stand on the chimney for a period of time. In actual operation, there are great safety hazards, time-consuming and labor-intensive, and some staff, in order to seek convenience, generally find it difficult to take out the sampling tube immediately when the specified sampling time comes, which leads to inaccurate detection afterwards. Summary of the invention

[0003] The purpose of the present invention is to provide an exhaust gas emission sampling tube detection sampling mechanism and an exhaust gas emission sampling device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] The present invention provides an exhaust gas emission sampling tube detection sampling mechanism, which comprises: at least one sampling tube detection sampling unit, the sampling tube detection sampling unit comprises: a first clamping component, a second clamping component and a clamping drive assembly, the first clamping component is provided with a first ventilation channel, the first ventilation channel is provided with a first ventilation clamping port and a first ventilation connecting port which are interconnected; the second clamping component is provided with a second ventilation channel, the second ventilation channel is provided with a second ventilation clamping port and a second ventilation connecting port which are interconnected, the second ventilation clamping port and the first ventilation clamping port are arranged at a relative interval, a sampling clamping gap is formed between the second ventilation clamping port and the first ventilation clamping port, and the direction of the second ventilation clamping port relative to the first ventilation clamping port is transverse; the clamping drive assembly is provided with a clamping drive end which is transmission-connected to the first clamping component and makes the first ventilation clamping port approach or move away from the second ventilation connecting port in the transverse direction.

[0006] The beneficial effect of the present invention is that when in use, the exhaust gas emission sampling port is connected with the first ventilation connection port or the second ventilation connection port in advance. When sampling, the sampling tube is placed horizontally in the sampling clamping gap formed between the second ventilation clamping port and the first ventilation clamping port, and the two ends of the sampling tube are respectively opposite to the first ventilation clamping port and the second ventilation clamping port. The clamping drive component drives the first clamping part to move horizontally, so that the first ventilation clamping port is close to the second ventilation connection port in the horizontal direction, and the sampling tube is clamped and fixed, and the two ends of the sampling tube are respectively connected to the first ventilation clamping port and the second ventilation clamping port. After that, when the exhaust gas passes through the sampling tube, the particulate dust in the exhaust gas can adhere to the inner wall of the sampling tube. After a period of time, after the sampling is completed, the clamping drive component drives the first clamping part to move in the opposite direction, so that the first ventilation clamping port is laterally away from the second ventilation connection port. At this time, the sampling tube can fall automatically, so as to realize automatic sampling of the sampling tube, reduce the labor intensity of workers, and be safe, reliable and accurate.

[0007] As a further improvement of the above technical solution, the first ventilation clamping port has at two ends of a lateral movement trajectory the clamping position close to the second ventilation connection port and a release position away from the second ventilation connection port, respectively; the second clamping component is freely slidable laterally relative to the first clamping component; the clamping drive assembly includes a linear one-way driving component and an elastic reset component; the linear one-way driving component is provided with a telescopic driving shaft transmission-connected to the first clamping component; the linear one-way driving component is used to drive the first clamping component to move laterally so that the first ventilation clamping port moves laterally from the clamping position to the release position; the elastic reset component is used to enable the first clamping component to drive the first ventilation clamping port to reset to the clamping position after the external force is eliminated.

[0008] In order to facilitate the insertion of the sampling tube, when the worker puts the sampling tube into the sampling clamping gap, he can manually push the first clamping component to move laterally outward, so that the two ends of the sampling tube are respectively opposite to the first ventilation clamping port and the second ventilation clamping port. At this time, under the action of the elastic reset component, the first clamping component drives the first ventilation clamping port to reset to the clamping position, so that the sampling tube is clamped between the first ventilation clamping port and the second ventilation clamping port. After sampling, the telescopic drive shaft on the linear unidirectional drive component drives the first clamping component to move, so that the first ventilation clamping port moves laterally from the clamping position to the release position and automatically releases. The telescopic drive shaft in this scheme can be freely retracted and retracted in a free state. When it is necessary to drive the first clamping component to move, the linear unidirectional drive component provides driving force to the telescopic drive shaft, and the linear unidirectional drive component generally adopts a unidirectional linear motor.

[0009] As a further improvement of the above technical solution, the elastic reset member is a reset spring, and the reset spring is sleeved on the outer circumference of the telescopic drive shaft, and the two ends of the reset spring are respectively in contact with the first clamping component and the linear unidirectional drive member.

[0010] The elastic reset component in this solution adopts a reset spring, and the reset spring is sleeved on the outer circumference of the telescopic drive shaft, which plays a role of limiting installation for the reset spring.

[0011] As a further improvement of the above technical solution, the exhaust gas emission sampling tube detection sampling mechanism also includes a fixed seat, the second clamping component is fixed on the fixed seat, and the first clamping component can be installed on the fixed seat in a transversely slidable manner.

[0012] In order to improve the stability of the movement of the first clamping component, the first clamping component is installed on the fixing seat in a transversely slidable manner.

[0013] As a further improvement of the above technical solution, the sampling tube detection sampling unit also includes an air intake control valve, and the air intake control valve is arranged at the second ventilation connection port.

[0014] The second ventilation connection port in this solution is connected to the exhaust gas sampling port, and the exhaust gas enters from the second ventilation connection port. This solution controls the on-off of the exhaust gas through the air intake control valve to prevent the staff from inhaling the exhaust gas when taking the sampling tube and affecting their physical and mental health. The outlet of the air intake control valve in this solution is connected to the second ventilation connection port through a hose, and the inlet of the air intake control valve is connected to the exhaust gas sampling port.

[0015] As a further improvement of the above technical solution, the sampling tube detection sampling unit also includes a one-way air outlet valve, and the one-way air outlet valve is arranged at the first ventilation connection port.

[0016] The one-way exhaust valve ensures that the exhaust gas will not flow in the reverse direction and affect the accuracy of sampling.

[0017] As a further improvement of the above technical solution, there are multiple sampling tube detection sampling units, and the multiple sampling tube detection sampling units are arranged in parallel at intervals.

[0018] This solution sets up multiple sampling tube detection sampling units, and multiple sampling tubes can be used for sampling at the same time.

[0019] As a further improvement of the above technical solution, the exhaust gas emission sampling tube detection sampling mechanism also includes an induced draft fan, and the induced draft fan is connected to the first ventilation connection port.

[0020] In this solution, the exhaust gas is extracted by an induced draft fan, and the exhaust gas in the exhaust gas discharge pipe passes through the sampling tube at a uniform speed. The induced draft fan in this solution is connected to the first ventilation connection port through a hose.

[0021] The present invention also provides an exhaust gas emission sampling device, which includes the above-mentioned exhaust gas emission sampling tube detection sampling mechanism, and also includes a sampling box, an air intake manifold and an air outlet manifold, a sampling chamber is arranged in the sampling box, the exhaust gas emission sampling tube detection sampling mechanism is installed in the sampling chamber, the air intake manifold extends into the sampling chamber and is connected to the second ventilation connection port, and the air outlet manifold extends into the sampling chamber and is connected to the first ventilation connection port.

[0022] In this solution, the exhaust gas emission sampling tube detection sampling mechanism is installed in the sampling chamber of the sampling box to play a role of isolation and protection. It is connected to the exhaust gas emission sampling port through the air intake main pipe. The air outlet main pipe discharges the sampled exhaust gas to the outside or introduces it into an external air purifier for purification before discharging it outside.

[0023] As a further improvement of the above technical solution, a sampling tube discharge trough is arranged at the bottom of the sampling chamber, a sampling tube discharge port connected with the sampling tube discharge trough is arranged at the lower part of the sampling box body, a sampling tube insertion port connected with the sampling chamber is arranged at the upper part of the sampling box body, and the sampling tube discharge port and the sampling tube insertion port are respectively provided with a material removal box door and a box insertion door.

[0024] When sampling is completed, the sampling tube will automatically fall into the sampling tube discharge trough. People open the material box door to take out the sampling tube from the sampling tube discharge port. When putting the sampling tube in, open the box door and put the sampling tube into the exhaust gas emission sampling tube detection sampling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the exhaust gas emission sampling tube detection sampling mechanism provided by the present invention;

[0027] Figure 2 yes Figure 1 An enlarged view of part A;

[0028] Figure 3 The figure is a schematic structural diagram of an embodiment of the exhaust gas emission sampling device provided by the present invention. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood as not including the number, and above, below, within, etc. are understood as including the number.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figure 1 to Figure 2 The exhaust gas emission sampling tube detection sampling mechanism of the present invention is implemented as follows:

[0034] The exhaust gas emission sampling tube detection sampling mechanism in this embodiment includes at least one sampling tube detection sampling unit. Specifically, the number of sampling tube detection sampling units in this embodiment is three. Multiple sampling tube detection sampling units can use multiple sampling tubes for sampling at the same time.

[0035] The sampling tube detection sampling unit includes: a first clamping component 100, a second clamping component 200 and a clamping drive assembly, the first clamping component 100 is provided with a first ventilation channel, the first ventilation channel is provided with a first ventilation clamping port 110 and a first ventilation connecting port 120 which are interconnected, the second clamping component 200 is provided with a second ventilation channel, the second ventilation channel is provided with a second ventilation clamping port 210 and a second ventilation connecting port 220 which are interconnected.

[0036] In this embodiment, the first clamping component 100 and the second clamping component 200 are both tubular structures. In other embodiments, they may also be other structures as long as a ventilation channel is provided.

[0037] The second ventilation clamping port 210 and the first ventilation clamping port 110 are arranged at a relative interval, and a sampling clamping gap is formed between the second ventilation clamping port 210 and the first ventilation clamping port 110. The direction of the second ventilation clamping port 210 relative to the first ventilation clamping port 110 is horizontal. The clamping drive assembly in this embodiment is used to make the first ventilation clamping port 110 approach or move away from the second ventilation connection port 220 in the horizontal direction.

[0038] Specifically: the first ventilation clamping opening 110 has the clamping position close to the second ventilation connection port 220 and the releasing position away from the second ventilation connection port 220 at both ends of the lateral movement trajectory, respectively; the second clamping part 200 is freely slidably arranged laterally relative to the first clamping part 100; the clamping drive assembly includes a linear one-way driving component 300 and an elastic reset component 400; the linear one-way driving component 300 is provided with a telescopic driving shaft 310 which is transmission-connected to the first clamping part 100; the linear one-way driving component 300 is used to drive the first clamping part 100 to move laterally so that the first ventilation clamping opening 110 moves laterally from the clamping position to the releasing position; the elastic reset component 400 is used to enable the first clamping part 100 to drive the first ventilation clamping opening 110 to reset to the clamping position after the external force is eliminated.

[0039] When in use, the exhaust gas sampling port is connected in advance to one of the first ventilation connection port 120 or the second ventilation connection port 220 . In this embodiment, the second ventilation connection port 220 is connected to the exhaust gas sampling port.

[0040] When sampling, the sampling tube is placed transversely in the sampling clamping gap formed between the second ventilation clamping port 210 and the first ventilation clamping port 110. When the sampling tube is placed in the sampling clamping gap, the first clamping member 100 can be manually pushed to move transversely outward so that the two ends of the sampling tube are respectively opposite to the first ventilation clamping port 110 and the second ventilation clamping port 210. At this time, under the action of the elastic reset member 400, the first clamping member 100 drives the first ventilation clamping port 110 to reset to the clamping position, so that the sampling tube is clamped between the first ventilation clamping port 110 and the second ventilation clamping port. Between the holding openings 210, the two ends of the sampling tube are connected to the first ventilation clamping opening 110 and the second ventilation clamping opening 210 respectively. After that, when the exhaust gas passes through the sampling tube, the particulate dust in the exhaust gas can adhere to the inner wall of the sampling tube. After a period of time, when the sampling is completed, the telescopic drive shaft 310 on the linear unidirectional drive component 300 drives the first clamping component 100 to move, so that the first ventilation clamping opening 110 moves horizontally from the clamping position to the release position and automatically releases. At this time, the sampling tube can fall automatically, realizing automatic sampling of the sampling tube, reducing the labor intensity of workers, and being safe, reliable and accurate.

[0041] The telescopic drive shaft 310 in this embodiment is freely retractable in a free state. When the first clamping component 100 needs to be driven to move, the linear unidirectional drive component 300 provides driving force to the telescopic drive shaft 310. The linear unidirectional drive component 300 generally adopts a unidirectional linear motor.

[0042] The elastic return member 400 is a return spring, which is sleeved on the outer circumference of the telescopic drive shaft 310. The two ends of the return spring are respectively in contact with the first clamping component 100 and the linear unidirectional drive member 300. The return spring is sleeved on the outer circumference of the telescopic drive shaft 310, which plays a role in limiting the installation of the return spring.

[0043] Furthermore, in order to improve the movement stability of the first clamping component 100, the exhaust gas emission sampling tube detection sampling mechanism also includes a fixed seat 500, the second clamping component 200 is fixed on the fixed seat 500, and the first clamping component 100 can be installed on the fixed seat 500 in a transversely slidable manner.

[0044] The sampling tube detection sampling unit also includes a one-way air outlet valve 700 and an air intake control valve 600. The one-way air outlet valve 700 is arranged at the first ventilation connection port 120, and the air intake control valve 600 is arranged at the second ventilation connection port 220. The exhaust gas is controlled by the air intake control valve 600 to prevent the staff from inhaling the exhaust gas and affecting their physical and mental health when taking the sampling tube. The outlet of the air intake control valve 600 in this embodiment is connected to the second ventilation connection port 220 through a hose, and the inlet of the air intake control valve 600 is connected to the exhaust gas emission sampling port, and the one-way air outlet valve 700 can ensure that the exhaust gas will not be diverted in reverse and affect the accuracy of sampling.

[0045] Furthermore, the exhaust gas emission sampling tube detection sampling mechanism also includes an induced draft fan 800, which is connected to each of the first ventilation connection ports 120. The exhaust gas is extracted by the induced draft fan 800, and the exhaust gas in the exhaust gas emission pipe passes through the sampling tube at a uniform speed. The induced draft fan 800 in this solution is connected to each of the first ventilation connection ports 120 through a hose, and a one-way air outlet valve 700 is arranged on the hose.

[0046] In some other embodiments, the clamping drive assembly may adopt other drive structures, such as an electric push rod.

[0047] In addition, if Figure 3As shown, the present embodiment also provides an exhaust gas emission sampling device, which includes the above-mentioned exhaust gas emission sampling tube detection sampling mechanism, and also includes a sampling box 900, an air intake manifold 910 and an air outlet manifold 920. A sampling chamber 930 is arranged in the sampling box 900, and the exhaust gas emission sampling tube detection sampling mechanism is installed in the sampling chamber 930. The air intake manifold 910 extends into the sampling chamber 930 and is connected to the second ventilation connection port 220. The air outlet manifold 920 extends into the sampling chamber 930 and is connected to the first ventilation connection port 120. The exhaust gas emission sampling tube detection sampling mechanism is installed in the sampling chamber 930 of the sampling box 900 to play a role of isolation and protection. During installation, it is connected to the exhaust gas emission sampling port through the air intake manifold 910, and the air outlet manifold 920 discharges the sampled exhaust gas to the outside or introduces it into an external air purifier for purification and then discharges it to the outside.

[0048] A sampling tube discharge trough 940 is arranged at the bottom of the sampling chamber 930, a sampling tube discharge port 941 connected to the sampling tube discharge trough 940 is arranged at the lower part of the sampling box 900, and a sampling tube inlet 931 connected to the sampling chamber 930 is arranged at the upper part of the sampling box 900. The sampling tube discharge port 941 and the sampling tube inlet 931 are respectively provided with a taking box door 942 and a putting box door 932. When the sampling is completed, the sampling tube will automatically fall into the sampling tube discharge trough 940. People open the taking box door 942 to take out the sampling tube from the sampling tube discharge port 941. When putting the sampling tube, open the putting box door 932 to put the sampling tube into the exhaust gas emission sampling tube detection sampling mechanism.

[0049] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An exhaust gas emission sampling tube detection sampling mechanism, characterized in that: It includes: At least one sampling tube detection sampling unit, the sampling tube detection sampling unit comprising: A first clamping component (100) provided with a first ventilation channel, wherein the first ventilation channel is provided with a first ventilation clamping port (110) and a first ventilation connecting port (120) which are interconnected; A second clamping component (200) is provided with a second ventilation channel, wherein the second ventilation channel is provided with a second ventilation clamping port (210) and a second ventilation connecting port (220) which are interconnected, the second ventilation clamping port (210) and the first ventilation clamping port (110) are arranged at a relative interval, a sampling clamping gap is formed between the second ventilation clamping port (210) and the first ventilation clamping port (110), and the direction of the second ventilation clamping port (210) relative to the first ventilation clamping port (110) is defined as the transverse direction; a clamping drive assembly, provided with a clamping drive end which is drivingly connected to the first clamping component (100) and causes the first ventilation clamping port (110) to be laterally moved closer to or farther from the second ventilation connection port (220); The sampling tube detection sampling unit further comprises an air intake control valve (600), wherein the air intake control valve (600) is arranged at the second ventilation connection port (220); The sampling tube detection sampling unit further comprises a one-way air outlet valve (700), wherein the one-way air outlet valve (700) is arranged at the first ventilation connection port (120).

2. The exhaust gas emission sampling tube detection sampling mechanism according to claim 1, characterized in that: The first ventilation clamping opening (110) has a clamping position close to the second ventilation connection opening (220) and a release position away from the second ventilation connection opening (220) at both ends of the transverse movement trajectory, respectively; the second clamping component (200) is freely slidably arranged transversely relative to the first clamping component (100); the clamping drive assembly comprises a linear one-way driving component (300) and an elastic reset component (400); the linear one-way driving component (300) is provided with a telescopic driving shaft (310) which is transmission-connected to the first clamping component (100); the linear one-way driving component (300) is used to drive the first clamping component (100) to move transversely so that the first ventilation clamping opening (110) moves transversely from the clamping position to the release position; the elastic reset component (400) is used to enable the first clamping component (100) to drive the first ventilation clamping opening (110) to reset to the clamping position after the external force is eliminated.

3. The exhaust gas emission sampling tube detection sampling mechanism according to claim 2 is characterized in that: The elastic return member (400) is a return spring, which is sleeved on the outer circumference of the telescopic drive shaft (310), and the two ends of the return spring are in contact with the first clamping component (100) and the linear one-way drive member (300) respectively.

4. The exhaust gas emission sampling tube detection sampling mechanism according to claim 2, characterized in that: The exhaust gas emission sampling tube detection sampling mechanism further comprises a fixing seat (500), the second clamping component (200) is fixed on the fixing seat (500), and the first clamping component (100) is installed on the fixing seat (500) in a transversely slidable manner.

5. The exhaust gas emission sampling tube detection sampling mechanism according to claim 1, characterized in that: The number of the sampling tube detection sampling units is multiple, and the multiple sampling tube detection sampling units are arranged in parallel at intervals.

6. The exhaust gas emission sampling tube detection sampling mechanism according to claim 1, characterized in that: The exhaust gas emission sampling pipe detection sampling mechanism further comprises an induced draft fan (800), and the induced draft fan (800) is in communication with the first ventilation connection port (120).

7. An exhaust gas sampling device, characterized in that: It comprises the exhaust gas emission sampling tube detection sampling mechanism as claimed in any one of claims 1 to 6, and also comprises a sampling box (900), an air intake manifold (910) and an air outlet manifold (920), wherein a sampling chamber (930) is arranged in the sampling box (900), the exhaust gas emission sampling tube detection sampling mechanism is installed in the sampling chamber (930), the air intake manifold (910) extends into the sampling chamber (930) and is connected to the second ventilation connection port (220), and the air outlet manifold (920) extends into the sampling chamber (930) and is connected to the first ventilation connection port (120).

8. The exhaust gas sampling device according to claim 7, characterized in that: A sampling tube discharge trough (940) is arranged at the bottom of the sampling chamber (930); a sampling tube discharge port (941) communicating with the sampling tube discharge trough (940) is arranged at the lower part of the sampling box (900); a sampling tube insertion port (931) communicating with the sampling chamber (930) is arranged at the upper part of the sampling box (900); and the sampling tube discharge port (941) and the sampling tube insertion port (931) are respectively provided with a material removal box door (942) and a box insertion door (932).

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