Fume monitoring sampling device

Abstract

The present application discloses a fume monitoring sampling device, comprising a fixed plate, a sampling tube with closed ends, a sampling assembly, a retractable mechanism and a plurality of limiting mechanisms, wherein the sampling tube is arranged on the fixed plate, and two side-by-side sampling holes are provided on the sampling tube near the fixed plate, one end of the sampling tube is provided with a first flow guide tube connected to the sampling tube, and the other side of the sampling tube near the fixed plate is provided with a second flow guide tube; the sampling assembly is movably arranged in the sampling tube; the retractable mechanism is detachably arranged on the other end face of the sampling tube, and the output end of the retractable mechanism penetrates into the sampling tube and is fixedly connected to the sampling assembly; a plurality of limiting mechanisms are arranged on the sampling tube near the first flow guide tube and distributed in a circular array, and the plurality of limiting mechanisms are respectively matched with the sampling assembly. Thus, the sampling range can be expanded, the diversity of samples can be improved, and the accuracy and reliability of monitoring data can be effectively ensured.

Description

Technical Field

[0001] The present application relates to the technical field of oil fume monitoring, and in particular to an oil fume monitoring sampling device. Background Art

[0002] In the catering industry, in order to ensure that oil fume emissions meet environmental standards, oil fume concentration monitors are widely used to accurately sample and monitor oil fume in the oil fume emission pipe. The current sampling method generally involves inserting a sampling tube into the oil fume emission pipe, using the sampling hole at the end of the sampling tube to capture the oil fume, and then guiding these oil fume samples through the sampling tube to the sensor of the oil fume concentration monitor for monitoring, analysis and evaluation.

[0003] However, in conventional sampling devices, such as the oil fume sampling device and oil fume concentration monitor disclosed in patent number CN219015777U, most sampling tubes are only equipped with a single sampling hole. Although this design can perform basic sampling tasks, its limitations are also obvious. For example, the sampling range is severely limited, and the collected oil fume samples may be too single and cannot fully reflect the actual situation of oil fume emissions, which may weaken the accuracy and reliability of monitoring data. Summary of the invention

[0004] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0005] To this end, one purpose of the present application is to provide an oil fume monitoring sampling device that can expand the sampling range, improve the diversity of samples, and effectively ensure the accuracy and reliability of monitoring data.

[0006] To achieve the above-mentioned purpose, the first aspect of the present application proposes an oil fume monitoring sampling device, comprising a fixed disk, a sampling tube with closed ends, a sampling assembly, a retractable mechanism and a plurality of limiting mechanisms, wherein the sampling tube is arranged on the fixed disk, and two side-by-side sampling holes are opened on the sampling tube on one side close to the fixed disk, a first guide tube connected to the sampling tube is provided at one end of the sampling tube, and a second guide tube is provided on the other side of the sampling tube close to the fixed disk; the sampling assembly is movably arranged in the sampling tube; the retractable mechanism is detachably arranged on the end face of the other end of the sampling tube, and the output end of the retractable mechanism penetrates into the sampling tube and is fixedly connected to the sampling assembly; a plurality of the limiting mechanisms are arranged on the sampling tube close to the first guide tube and in a circular array, and the plurality of the limiting mechanisms are respectively coordinated with the sampling assembly.

[0007] The oil fume monitoring sampling device of the embodiment of the present application can expand the sampling range, improve the diversity of samples, and effectively ensure the accuracy and reliability of monitoring data.

[0008] In addition, the oil fume monitoring sampling device proposed in the present application may also have the following additional technical features:

[0009] In one embodiment of the present application, the sampling assembly includes a limit plate, a magnet plate, a piston and a sealing head, wherein the limit plate, the magnet plate and the piston are movably arranged in the sampling tube in sequence, and one end of the magnet plate is adsorbed and connected to the limit plate, the other end of the magnet plate is fixedly connected to one end of the piston, and the other end of the piston is fixedly connected to the output end of the retractable mechanism, wherein a plurality of limit grooves are provided around the limit plate; the sealing head is fixedly arranged on the side wall of the limit plate away from the magnet plate, and the sealing head is opposite to the first flow guide tube.

[0010] In one embodiment of the present application, the sealing head is a rubber head.

[0011] In one embodiment of the present application, the limiting mechanism includes an installation box, a baffle, a guide rod, a driving handle and a spring, wherein the installation box is fixedly arranged on the outer wall of the sampling tube close to the first flow guide tube; the baffle is movably arranged in the installation box; the guide rod is fixedly arranged on the baffle, and one end of the guide rod passes through the installation box and is pivotally connected to the driving handle, and the other end of the guide rod passes through the sampling tube, wherein the other end face of the guide rod is an inclined surface and is clamped in the limiting groove; the spring is sleeved on the guide rod, and one end of the spring is fixedly connected to the baffle, and the other end of the spring is fixedly connected to the side wall of the installation box.

[0012] In one embodiment of the present application, the above-mentioned oil fume monitoring sampling device also includes two exhaust mechanisms, wherein the two exhaust mechanisms are respectively arranged in the corresponding sampling holes.

[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a front view of a smoke monitoring sampling device according to an embodiment of the present application;

[0016] Figure 2 It is a three-dimensional diagram of a smoke monitoring sampling device according to one embodiment of the present application;

[0017] Figure 3is a cross-sectional view of a smoke monitoring sampling device according to an embodiment of the present application;

[0018] Figure 4 for Figure 3 A magnified view of part A in FIG.

[0019] Figure 5 This is a diagram showing the use status of an oil fume monitoring sampling device according to an embodiment of the present application;

[0020] Figure 6 It is a cross-sectional view of an oil fume monitoring sampling device according to another embodiment of the present application.

[0021] As shown in the figure: 10, fixed plate; 20, sampling tube; 21, injection hole; 22, first flow guide tube; 23, second flow guide tube; 30, sampling assembly; 31, limit plate; 32, magnet plate; 33, piston; 34, sealing head; 301, limit groove; 40, retractable mechanism; 50, limit mechanism; 51, installation box; 52, baffle; 53, guide rod; 54, drive handle; 55, spring; 60, exhaust mechanism. DETAILED DESCRIPTION

[0022] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0023] The oil fume monitoring sampling device according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0024] like Figure 1-Figure 5 As shown, the oil fume monitoring sampling device of the embodiment of the present application may include a fixed plate 10, a sampling tube 20 with both ends closed, a sampling assembly 30, a retractable mechanism 40 and a plurality of limiting mechanisms 50.

[0025] The sampling tube 20 is disposed on the fixed disk 10, and two parallel injection holes 21 are provided on one side of the sampling tube 20 close to the fixed disk 10. It should be noted that there are at least two injection holes 21 described in this embodiment.

[0026] It should be noted that the fixing plate 10 described in this embodiment is provided with a mounting hole (not specifically marked in the figure). It is understandable that the staff can fix the fixing plate 10 on the oil fume exhaust pipe (not specifically marked in the figure) by means of threaded fasteners (screws, bolts or bolts, etc.), wherein the sampling tube 20 with two sampling holes 21 is partially extended into the oil fume exhaust pipe for collecting oil fume, such as Figure 5 shown.

[0027] A first flow guide tube 22 communicating with the sampling tube 20 is disposed at one end of the sampling tube 20 , and a second flow guide tube 23 is disposed at the other side of the sampling tube 20 close to the fixed plate 10 .

[0028] In the present application example, the outlet ends of the first guide pipe 22 and the second guide pipe 23 can be provided with a fume collection box (not shown in the figure) or a collection balloon (not shown in the figure) to collect the oil smoke discharged from the first guide pipe 22 and the second guide pipe 23 respectively, so that the oil smoke concentration monitor can detect them respectively, and finally obtain the average value to determine the monitoring result. Alternatively, the oil smoke discharged from the first guide pipe 22 and the second guide pipe 23 can be directly discharged into a detection box (not shown in the figure) with an oil smoke concentration monitor, and the two mixed oil smokes can be directly detected by the oil smoke concentration monitor to obtain the monitoring result.

[0029] The sampling assembly 30 is movably arranged in the sampling tube 20, and the retractable mechanism 40 is detachably arranged on the other end surface of the sampling tube 20. The output end of the retractable mechanism 40 penetrates into the sampling tube 20 and is fixedly connected to the sampling assembly 30. It can be understood that the retractable mechanism 40 described in this embodiment is detachably arranged on the other end surface of the sampling tube 20, which is convenient for the installation and replacement of the retractable mechanism 40. For example, the retractable mechanism 40 can be connected to the other end surface of the sampling tube 20 through a threaded fastener.

[0030] It should be noted that the retractable mechanism 40 described in this embodiment can be a multi-stage telescopic cylinder, a hydraulic cylinder or an electric telescopic rod, wherein the multi-stage can be two stages. It should be particularly noted that the initial state of the output end of the retractable mechanism 40 is a state of one stage being extended, and the initial position of the sampling assembly 30 is located between the two injection holes 21.

[0031] Multiple limiting mechanisms 50 are arranged on the sampling tube 20 close to the first guide tube 22 and distributed in a circular array. For example, the multiple limiting mechanisms 50 can be 2, 3, 4, 5, 6 limiting mechanisms 50, etc. The specific number of settings can be selected according to actual conditions and is not limited here. The multiple limiting mechanisms 50 are respectively coordinated with the sampling components 30.

[0032] Specifically, when it is necessary to sample and monitor the oil smoke in the oil smoke exhaust pipe, the relevant staff first needs to open a sampling port (not specifically marked in the figure) on the side wall of the oil smoke exhaust pipe, and then the staff inserts the part of the sampling tube 20 with the sampling hole 21 into the oil smoke exhaust pipe through the sampling port, and makes the sampling hole 21 opposite to the flow direction of the oil smoke. Then the staff fixes the fixing plate 10 on the oil smoke exhaust pipe by means of threaded fasteners, and seals the sampling port by means of the fixing plate 10.

[0033] At this time, the oil smoke discharged through the oil smoke exhaust pipe will flow into the sampling tube 20 through the sampling hole 21. Then, the staff controls the output end of the retractable mechanism 40 to extend in the second stage, and pushes the sampling assembly 30 to push the oil smoke collected from one of the sampling holes 21 into the first guide tube 22, and discharge and collect through the first guide tube 22. Then, the output end of the retractable mechanism 40 is controlled to retract, and the oil smoke collected through the other sampling hole 21 is pushed into the second guide tube 23, and the collected oil smoke is discharged and collected through the second guide tube 23. Then, the oil smoke collected from the two sampling holes 21 set in different ranges is monitored, which can effectively ensure the accuracy and reliability of the monitoring data.

[0034] In one embodiment of the present application, Figure 3 As shown, the sampling assembly 30 may include a limiting plate 31 , a magnet plate 32 , a piston 33 and a sealing head 34 .

[0035] The limiting plate 31, the magnet plate 32 and the piston 33 are sequentially arranged in the sampling tube 20, and one end of the magnet plate 32 is adsorbed and connected to the limiting plate 31, the other end of the magnet plate 32 is fixedly connected to one end of the piston 33, and the other end of the piston 33 is fixedly connected to the output end of the retractable mechanism 40, wherein a plurality of limiting grooves 301 are provided around the limiting plate 31. It should be noted that the limiting plate 31 described in this embodiment is a plate that can be adsorbed by the magnet plate, for example, an iron plate.

[0036] The sealing head 34 is fixedly arranged on the side wall of the limiting plate 31 away from the magnet plate 32, and the sealing head 34 is opposite to the first flow guide tube 22, and is used to seal the smoke inlet port of the first flow guide tube 22. The sealing head 34 can be a rubber head.

[0037] Further, in one embodiment of the present application, Figure 2-Figure 4 As shown, the limiting mechanism 50 may include a mounting box 51 , a baffle 52 , a guide rod 53 , a driving handle 54 and a spring 55 .

[0038] The installation box 51 is fixedly arranged on the outer wall of the sampling tube 20 near the first flow guide tube 22. The baffle plate 52 is movably arranged in the installation box 51. The guide rod 53 is fixedly arranged on the baffle plate 52, and one end of the guide rod 53 passes through the installation box 51 and is pivotally connected to the driving handle 54, and the other end of the guide rod 53 passes through the sampling tube 20, wherein the other end face of the guide rod 53 is an inclined surface and is clamped in the limit groove 301. It should be noted that the driving handle 54 described in this embodiment is pivotally connected to one end of the guide rod 53 through a rotating shaft near one end thereof.

[0039] It is understandable that the staff can manually bend the other end of the driving handle 54 to rotate the driving handle 54 until the other end of the driving handle 54 abuts against the mounting box 51 , thereby pulling the guide rod 53 away from the inner cavity of the sampling tube 20 .

[0040] The spring 55 is sleeved on the guide rod 53 , and one end of the spring 55 is fixedly connected to the baffle 52 , and the other end of the spring 55 is fixedly connected to the side wall of the installation box 51 .

[0041] Specifically, when it is necessary to collect the oil fume discharged from the oil fume exhaust pipe, the staff can control the output end of the retractable mechanism 40 to extend twice, and push the sampling assembly 30 to move toward the first guide tube 22, and push the oil fume collected by the sampling hole 21 near the first guide tube 22 into the first guide tube 22.

[0042] When the sealing head 34 in the sampling assembly 30 seals the smoke inlet port of the first flow guide tube 22, the limiting plate 31 in the sampling assembly 30 applies pressure to the guide rod 53 through movement, and pushes the guide rod 53 away from the inner cavity of the sampling tube 20 for a certain distance. When the limiting groove 301 on the limiting plate 31 moves to be opposite to the guide rod 53, the guide rod 53 loses pressure and resets under the tension of the spring 55, and the guide rod 53 is inserted into the limiting groove 301, and the limiting plate 31 is limited and fixed. Then, the sealing head 34 is pressed by the limiting plate 31 to press on the smoke inlet port of the first flow guide tube 22, thereby sealing the smoke inlet port of the first flow guide tube 22 to prevent the collected oil smoke from overflowing. At the same time, the piston 33 in the sampling assembly 30 seals the sample inlet 21 close to the first flow guide tube 22.

[0043] Then, the staff controls the output end of the retractable mechanism 40 to retract, and pulls the magnet plate 32 and the piston 33 away from the limit plate 31. As the magnet plate 32 and the piston 33 move back, the piston 33 pushes the oil fume collected by the other sampling hole 21 into the second guide tube 23, and is discharged and collected through the second guide tube 23, thereby sampling the oil fume in different ranges to ensure the accuracy and reliability of the monitoring data.

[0044] Optionally, in one embodiment of the present application, Figure 6 As shown, the above-mentioned oil fume monitoring sampling device may further include two exhaust mechanisms 60, wherein the two exhaust mechanisms 60 are respectively arranged in the corresponding sampling holes 21. It should be noted that the exhaust mechanism 60 described in this embodiment may be a small exhaust fan.

[0045] It is understandable that by providing the exhaust mechanism 60 in the sampling hole 21, the oil smoke discharged from the oil smoke exhaust pipe can be actively sucked into the sampling tube 20, so as to realize active collection and improve the collection efficiency. At the same time, the amount of oil smoke entering the sampling tube 20 and flowing back out from the sampling hole 21 can be reduced, thereby increasing the amount of oil smoke collected and ensuring the accuracy and reliability of the monitoring data.

[0046] In summary, the oil fume monitoring sampling device of the embodiment of the present application can expand the sampling range, improve the diversity of samples, and effectively ensure the accuracy and reliability of monitoring data.

[0047] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A fume monitoring sampling device, characterized in that: It includes a fixed plate, a sampling tube with closed ends, a sampling assembly, a retractable mechanism and a plurality of limiting mechanisms, wherein: The sampling tube is arranged on the fixed disk, and two parallel sampling holes are provided on one side of the sampling tube close to the fixed disk, a first flow guide tube connected to the sampling tube is provided at one end of the sampling tube, and a second flow guide tube is provided on the other side of the sampling tube close to the fixed disk; The sampling component is movably arranged in the sampling tube; The retractable mechanism is detachably arranged on the other end surface of the sampling tube, and the output end of the retractable mechanism penetrates into the sampling tube and is fixedly connected to the sampling assembly; A plurality of the limiting mechanisms are arranged on the sampling tube in a circumferential array close to the first flow guide tube, and the plurality of the limiting mechanisms are respectively matched with the sampling components; The sampling assembly includes a limit plate, a magnet plate, a piston and a sealing head, wherein: The limit plate, the magnet plate and the piston are sequentially arranged in the sampling tube, and one end of the magnet plate is adsorbed and connected to the limit plate, the other end of the magnet plate is fixedly connected to one end of the piston, and the other end of the piston is fixedly connected to the output end of the retractable mechanism, wherein a plurality of limit grooves are provided around the limit plate; The sealing head is fixedly arranged on a side wall of the limiting plate away from the magnet plate, and the sealing head is opposite to the first flow guide pipe.

2. The oil fume monitoring sampling device according to claim 1 is characterized in that: The sealing head is a rubber head.

3. The oil fume monitoring sampling device according to claim 1 is characterized in that: The limiting mechanism includes a mounting box, a baffle, a guide rod, a driving handle and a spring, wherein: The installation box is fixedly arranged on the outer wall of the sampling tube close to the first flow guide tube; The baffle is movably arranged in the installation box; The guide rod is fixedly arranged on the baffle, and one end of the guide rod passes through the installation box and is pivotally connected to the driving handle, and the other end of the guide rod passes through the sampling tube, wherein the other end face of the guide rod is an inclined surface and is clamped in the limit groove; The spring is sleeved on the guide rod, one end of the spring is fixedly connected to the baffle, and the other end of the spring is fixedly connected to the side wall of the installation box.

4. The oil fume monitoring sampling device according to claim 1 is characterized in that: It also includes two air suction mechanisms, wherein the two air suction mechanisms are respectively arranged in the corresponding injection holes.

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