Gas sampling port filtering device with dust removal function

Abstract

The utility model provides a gas sampling port filtering device with a dust removal function. The gas sampling port filtering device comprises a sampling pump, a dust remover, a filter and a plurality of connecting pipelines for connecting the equipment, the gas inlet end of the filter is connected with an external sample injection pipe, and a dust remover is additionally arranged between the sampling pump and the filter and is used for secondarily filtering gas conveyed to the sampling pump by the filter; a filtering adjusting assembly is arranged at the upper end of the dust remover and is used for replacing a filtering piece in the process of not stopping the operation of the sampling pump. According to the utility model, secondary filtration is carried out on the basis of original filtration, so that the dust content in a sample is removed, the service life of the sampling pump is prolonged, the reliability of sample analysis data is improved, and analysis errors generated in the sampling process are reduced.

Description

Technical Field

[0001] This utility model relates to the field of chlor-alkali gas sampling technology, and in particular to a gas sampling port filter device with dust removal function. Background Technology

[0002] In the chlor-alkali industry, pretreatment of sample gas to ensure its purity is crucial during calcium carbide silo sampling. Current industry practice dictates that dust removal equipment be installed before the gas sampling pump, with filters being the core method for effective dust removal. Specifically, the conventional approach involves adding a filter cotton layer to the exhaust end of the ash storage container to intercept and remove dust particles carried by the sample gas. However, this traditional solution has several limitations in practice: given that the gas being tested often contains a high concentration of dust, and the filter cotton has a relatively limited dust-holding capacity, long-term use can easily lead to blockage of the inlet pipe, causing sample deviations and affecting the analytical accuracy and lifespan of the gas chromatograph. Furthermore, since the sampling pump needs to operate continuously for 24 hours, failure to replace the filter cotton in a timely manner will inevitably lead to blockage of the gas inlet pipe, resulting in increasingly severe dust accumulation inside the pump body, and in extreme cases, causing the pump to completely lose its normal operating capability.

[0003] To address this issue, we propose a gas sampling port filter device with dust removal function to solve the problem of low dust removal efficiency of filter cotton in existing technologies, which affects the accuracy of sample gas detection results and may cause potential damage to the pump equipment. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a gas sampling port filter device with dust removal function, which solves the problem of low dust removal efficiency of filter cotton in the prior art, which affects the accuracy of sample gas detection results and causes potential damage to pump equipment.

[0005] To achieve the above and other related objectives, this utility model provides a gas sampling port filter device with dust removal function, comprising: a sampling pump, a dust collector, a filter, and several connecting pipes for connecting the above devices;

[0006] The air inlet of the filter is connected to an external sampling pipe, and a dust collector is installed between the sampling pump and the filter. The dust collector performs secondary filtration on the gas delivered from the filter to the sampling pump.

[0007] The dust collector is equipped with a filter adjustment component at its upper end, which is used to replace the filter element without stopping the sampling pump.

[0008] Preferably, the filter includes an ash storage bin, the lower end of which is provided with a discharge port, a sealing cover plate is connected to the discharge port, an air inlet is connected to the side wall of the ash storage bin, an air outlet is provided at the upper end of the ash storage bin, filter cotton is provided inside the air outlet, and the air outlet is connected to a filter adjustment component.

[0009] Preferably, the filter adjustment assembly includes a multi-port valve located above the ash storage bin. All interfaces at the lower end of the multi-port valve are fitted with annular caps. The ash storage bin has multiple air outlets, each of which matches one interface at the lower end of the multi-port valve. Each air outlet extends upward to form a fastening ring that matches the annular cap. A knob is located at the middle of the upper end of the ash storage bin. A baffle is connected to the lower end of the knob. The baffle has a through hole with the same inner diameter as the air outlet.

[0010] Preferably, the bottom of the air outlet is provided with a pad, and the pad is hollow.

[0011] Preferably, the multi-port valve has at least three ports, and the upper end of the fastening ring has two symmetrical notches.

[0012] Preferably, a three-way valve is provided above the multi-way valve, and one port of the three-way valve is connected to an external nitrogen pipeline.

[0013] Preferably, the lower end of the ash storage bin is provided with a support, which is used to raise the ash storage bin so that the discharge port is separated from the ground.

[0014] As described above, the gas sampling port filter device with dust removal function disclosed in this utility model has the following beneficial effects:

[0015] 1. This utility model performs secondary filtration on the basis of the original filtration, which removes dust content in the sample, extends the service life of the sampling pump, increases the reliability of sample analysis data, and reduces analytical errors generated during the sampling process.

[0016] 2. This utility model, by setting a multi-way valve between the dust collector and the filter, adopts a multi-channel circulating dust collection method, which facilitates the replacement of overused filter cotton. Attached Figure Description

[0017] Figure 1 The image shown is a perspective view of a gas sampling port filter device with dust removal function according to this utility model.

[0018] Figure 2 The diagram shows the filter adjustment components and filter structure of a gas sampling port filter device with dust removal function according to this utility model.

[0019] Figure 3The image shown is a perspective view of the annular cover of a gas sampling port filter device with dust removal function according to this utility model.

[0020] Figure 4 The image shown is a three-dimensional view of the outlet of a gas sampling and filtering device with dust removal function according to this utility model.

[0021] Figure 5 The image shown is a bottom-view perspective view of the ash storage bin of a gas sampling port filter device with dust removal function according to this utility model.

[0022] Figure 6 The image shown is a top-view perspective view of the outlet of a gas sampling and filtering device with dust removal function according to this utility model.

[0023] Component designation explanation

[0024] 1. Sampling pump; 2. Dust collector; 3. Filter; 4. Filter adjustment assembly;

[0025] 30. Ash storage bin; 32. Air inlet; 33. Air outlet; 34. Filter cotton;

[0026] 40. Multi-way valve; 41. Ring cover;

[0027] 35. Fastening ring; 36. Washer plate; 37. Notch; 38. Knob; 39. Baffle;

[0028] 5. Three-way valve. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0030] Please see Figures 1 to 6 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0031] like Figure 1-6As shown, this utility model provides a gas sampling port filtration device with dust removal function, including: a sampling pump 1, a dust collector 2, a filter 3, and several connecting pipes for connecting the above devices; the air inlet of the filter 3 is connected to an external sample inlet pipe, and a dust collector 2 is installed between the sampling pump 1 and the filter 3, which performs secondary filtration on the gas delivered from the filter 3 to the sampling pump 1. This device performs secondary filtration on the basis of the original filtration, thereby removing dust content from the sample, extending the service life of the sampling pump 1, increasing the reliability of sample analysis data, and reducing analytical errors generated during the sampling process.

[0032] The upper end of the dust collector 2 is equipped with a filter adjustment component 4, which is used to replace the filter without stopping the operation of the sampling pump 1.

[0033] In one embodiment, the filter 3 includes a dust storage bin 30. The lower end of the dust storage bin 30 has a discharge port connected to a sealing cover. An air inlet 32 ​​is connected to the side wall of the dust storage bin 30, and an air outlet 33 is located at the upper end of the dust storage bin 30. Filter cotton 34 is installed inside the air outlet 33, and the air outlet 33 is connected to the filter adjustment assembly 4. This structure adds a discharge port to the original dust storage bottle and seals it with a sealing cover. A distance sensor is installed inside the dust storage bin 30 to monitor the height of dust accumulation in real time. When the dust accumulation height approaches the air inlet 32, an alert signal is issued, prompting the operator to clean and remove the dust inside the dust storage bin 30, thus improving discharge efficiency.

[0034] In one embodiment, the filter adjustment assembly 4 includes a multi-way valve 40 located above the ash storage bin 30. All interfaces at the lower end of the multi-way valve 40 are fitted with annular caps 41. The ash storage bin 30 has multiple air outlets 33, each matching one interface at the lower end of the multi-way valve 40. Each air outlet 33 extends upwards to form a fastening ring 35 that matches the annular cap 41. A knob 38 is located at the upper center of the ash storage bin 30. A baffle 39 is connected to the lower end of the knob 38, and the baffle 39 has a through hole with the same inner diameter as the air outlet 33. In use, the annular cap 41 is threadedly connected to the fastening ring 35, connecting the interfaces of the multi-way valve 40 to the air outlets 33. All interfaces at the lower end of the multi-way valve 40 are connected to one air outlet 33, but only one interface allows passage; the multi-way valve 40 is configured with one inlet and one outlet. When the filter cotton 34 in one of the air outlets 33 is overused, change the passage of the multi-way valve 40 and switch to another filter cotton 34. During the switch, turn the knob 38, which rotates the baffle 39, connecting the perforation to the air outlet 33 in the open state. The operator then opens the annular cover 41 to expose the filter cotton 34 for replacement. It should be noted that the multi-way valve 40 and the air outlet 33 are connected by a flexible hose, facilitating the replacement of the filter cotton 34 during disassembly and assembly.

[0035] In one embodiment, a pad 36 is provided at the bottom of the air outlet 33. The pad 36 is perforated. The pad 36 is used to support the filter cotton 34 and prevent the filter cotton 34 from falling into the ash storage bin 30. The perforated design of the pad 36 facilitates airflow and reduces the impact on the gas flow rate during gas sampling.

[0036] In one embodiment, the multi-way valve 40 has at least three ports, ensuring that at least two air outlets 33 can perform gas switching operations. The accompanying drawings in this specification use a four-way valve structure. The upper end of the fastening ring 35 has two symmetrical notches 37, through which the filter cotton 34 is exposed for easy removal.

[0037] In one embodiment, a three-way valve 5 is provided above the multi-way valve 40, and one port of the three-way valve 5 is connected to an external nitrogen pipeline. By providing the three-way valve 5, it is convenient to connect the nitrogen pipeline and to blow air in reverse to clean dust residue in the corresponding pipeline.

[0038] In one embodiment, a support is provided at the lower end of the ash storage bin 30. The support is used to raise the ash storage bin 30 so that the discharge port is separated from the ground, thereby facilitating the placement of the collection box at the lower end of the ash storage bin 30 to transfer the accumulated dust.

[0039] The specific usage process of this utility model is as follows: the sampling pump 1 is used to sample gas. The gas enters the ash storage tank 30 through the air inlet 32 ​​and is discharged through an air outlet 33. The filter cotton 34 in the air outlet 33 performs preliminary filtration. After passing through the multi-way valve 40 and the three-way valve 5, it enters the dust collector 2 for secondary filtration. Finally, the purified sample gas enters the sampling pump 1 for testing.

[0040] After the equipment has been running for a long time, the passage path of the multi-way valve 40 is changed, and the sealing cover plate at the original air outlet 33 is separated from the fastening ring 35, thereby exposing the filter cotton 34 inside the air outlet 33, which is then replaced and reset.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A gas sampling port filter device with dust removal function, characterized in that, include: Sampling pump (1), dust collector (2), filter (3), and several connecting pipes for connecting the above equipment; The air inlet of the filter (3) is connected to an external sampling tube. A dust collector (2) is installed between the sampling pump (1) and the filter (3). The dust collector (2) performs secondary filtration on the gas delivered from the filter (3) to the sampling pump (1). The dust collector (2) is equipped with a filter adjustment component (4) at its upper end, which is used to replace the filter element without stopping the sampling pump (1).

2. The gas sampling port filter device with dust removal function according to claim 1, characterized in that: The filter (3) includes a ash storage bin (30), the lower end of which is provided with a discharge port, and a sealing cover is connected to the discharge port. An air inlet (32) is connected to the side wall of the ash storage bin (30), and an air outlet (33) is provided at the upper end of the ash storage bin (30). Filter cotton (34) is provided inside the air outlet (33), and the air outlet (33) is connected to the filter adjustment assembly (4).

3. A gas sampling port filter device with dust removal function according to claim 2, characterized in that: The filter adjustment assembly (4) includes a multi-way valve (40) located above the ash storage bin (30). All interfaces at the lower end of the multi-way valve (40) are fitted with annular caps (41). The ash storage bin (30) has multiple air outlets (33). Each air outlet (33) is matched with one interface at the lower end of the multi-way valve (40), and each air outlet (33) extends upward to form a fastening ring (35) that matches the annular cap (41). A knob (38) is located in the middle of the upper end of the ash storage bin (30). A baffle (39) is connected to the lower end of the knob (38). The baffle (39) has a perforation with the same inner diameter as the air outlet (33).

4. A gas sampling port filter device with dust removal function according to claim 2 or 3, characterized in that: The bottom of the air outlet (33) is provided with a pad (36), which is hollow.

5. A gas sampling port filter device with dust removal function according to claim 3, characterized in that: The multi-way valve (40) has at least three ports, and the upper end of the fastening ring (35) is provided with two symmetrical notches (37).

6. A gas sampling port filter device with dust removal function according to claim 3, characterized in that: A three-way valve (5) is provided above the multi-way valve (40), and one port of the three-way valve (5) is connected to an external nitrogen pipeline.

7. A gas sampling port filter device with dust removal function according to claim 2, characterized in that: The lower end of the ash storage bin (30) is provided with a support, which is used to raise the ash storage bin (30) so that the discharge port is separated from the ground.

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