Vacuum air pump power device

Abstract

The utility model provides a vacuum air pump power device which comprises a pump body and a pump core. A first channel and a second channel are respectively arranged at the axis positions of the pump body and the pump core; a sample gas outlet is formed in the front end of the first channel, and the front end of the pump core is in butt joint with the first channel; a first opening communicated with the first channel is formed in the side wall of the pump body and used for negative pressure gas to enter. A second opening communicated with the second channel is formed in the side wall of the pump core and used for inputting compressed air. The first opening is formed in the butt joint position of the pump body and the front end of the pump core. According to the utility model, the defects of traditional air exhaust equipment under severe conditions of high temperature, high humidity and the like are overcome, and a solution which is more reliable, durable, energy-saving and easy to maintain is provided; the method is particularly important for a CEMS (Continuous Emission Monitoring System) which needs to continuously work for a long time, and the accuracy of monitoring data and the overall performance of the system can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring equipment, in particular to a vacuum air pump power device. Background Art

[0002] Flue gas measurement is a critical step in continuous emissions monitoring systems (CEMS). To accurately analyze the gas composition in the chimney, the gas to be measured must be extracted from the chimney and fed into analytical instruments for testing. This process requires the extraction equipment to operate stably and reliably, and to be able to operate for long periods in harsh environments. Existing extraction solutions primarily use traditional methods such as fans, diaphragm pumps, or air pumps. However, these traditional devices often face a series of challenges in high temperatures (e.g., above 150°C), high humidity, or other extreme conditions.

[0003] Deficiencies of existing technology:

[0004] 1. Complex structure: Most existing vacuum equipment has a complex structure, containing multiple moving parts and electrical components, which not only increases the manufacturing cost but also makes subsequent maintenance more cumbersome.

[0005] 2. Limited adaptability: When faced with high temperature, high humidity or highly corrosive working conditions, conventionally designed exhaust equipment performs poorly and cannot meet the needs of long-term stable operation.

[0006] 3. Low reliability: The complex mechanical structure coupled with temperature-sensitive electronic components reduces the reliability of the overall system and increases the possibility of failure.

[0007] 4. Difficult to clean and maintain: When dust or other impurities enter, it is relatively troublesome to clean up, which is not conducive to quickly restoring normal use.

[0008] Therefore, the existing technology has deficiencies and needs further improvement. Utility Model Content

[0009] In view of the problems existing in the prior art, the utility model provides a vacuum air pump power device.

[0010] To achieve the above purpose, the specific solutions of the present utility model are as follows:

[0011] The utility model provides a vacuum air pump power device, comprising:

[0012] Pump body and pump core;

[0013] The pump body and the pump core are respectively provided with a first channel and a second channel at the axial center positions;

[0014] A sample gas outlet is provided at the front end of the first channel, and the front end of the pump core is connected to the first channel;

[0015] A first opening communicating with the first channel is provided on the side wall of the pump body for compressed air to enter;

[0016] A second opening communicating with the second channel is provided on the side wall of the pump core for the negative pressure gas to enter;

[0017] The first opening is provided at the joint between the pump body and the front end of the pump core;

[0018] The first opening is used to input compressed air, and the second channel is connected to the first channel to guide the compressed gas to the second channel. The compressed gas is used to generate negative pressure at the second opening, thereby guiding the gas to be sampled to enter and be discharged from the sample gas outlet along with the compressed gas.

[0019] Furthermore, a first sealing ring is provided at the joint between the tail of the pump body and the front end of the pump core to ensure air tightness under high temperature conditions.

[0020] Furthermore, the inner diameter of the first channel is provided with a narrow portion, and both sides of the narrow portion gradually become larger to squeeze the gas.

[0021] Furthermore, a first fixing ring and a second fixing ring are sequentially provided on the outer wall of the pump body from left to right.

[0022] Furthermore, a third fixing ring and a fourth fixing ring are sequentially provided on the outer wall of the pump core from left to right.

[0023] Furthermore, the device also includes a mounting base;

[0024] The pump body and the pump core are embedded in the mounting seat, and the axial movement of the pump body and the pump core is limited by the first fixing ring, the second fixing ring, the third fixing ring, and the fourth fixing ring;

[0025] A second sealing ring and a third sealing ring are respectively provided between the left side of the first fixing ring and the left side of the second fixing ring and the mounting seat;

[0026] The first sealing ring is arranged between the right side of the second fixing ring and the left side of the third fixing ring;

[0027] A fourth sealing ring is provided between the outer wall of the fourth fixing ring and the mounting seat.

[0028] Furthermore, a third opening and a fourth opening are provided on the side wall of the mounting seat;

[0029] The third opening and the fourth opening correspond to the first opening and the second opening respectively and are used for docking.

[0030] Furthermore, both the pump body and the pump core are in a shape similar to a Chinese character 'tu' (土).

[0031] Furthermore, the materials of the first sealing ring, the second sealing ring, the third sealing ring, and the fourth sealing ring are all fluororubber, which is corrosion-resistant and high-temperature resistant.

[0032] Furthermore, the pump body and the pump core are connected by a cold-press sealing and assembling method.

[0033] Adopting the technical solution of the present utility model has the following beneficial effects:

[0034] 1. Simple structure:

[0035] The device is only composed of two main components, namely the pump body and the pump core, reducing the failure points and simplifying the manufacturing and maintenance processes.

[0036] The design of cold-press sealing and assembling results in a high degree of integration, reducing the risk of potential leakage.

[0037] 2. High-temperature adaptability:

[0038] The first sealing ring arranged at the docking position of the pump body and the pump core adopts a fluororubber material that is corrosion-resistant and high-temperature resistant, ensuring good airtightness under high-temperature conditions.

[0039] The entire device has no electrical components or moving parts, so it can be unaffected by high-temperature environments.

[0040] 3. Stable and reliable negative pressure flow:

[0041] Using compressed air as the power source, a stable negative pressure is generated at the second opening, thereby reliably extracting the gas to be measured.

[0042] The inner diameter of the first channel is provided with a narrow part, which helps to squeeze the gas and further ensures the stability of the flow.

[0043] 4. Low maintenance cost:

[0044] Since there are no easily worn moving parts, the service life of the device is greatly extended, reducing the maintenance frequency and cost.

[0045] The simple design also means that it is easier to clean and inspect, reducing the downtime.

[0046] 5. Convenient installation:

[0047] The pump body and the pump core are embedded in the mounting seat through a fixing ring, restricting the axial movement and ensuring the stability of the installation.

[0048] The third and fourth openings on the mounting base correspond to the openings on the pump body and the pump core, facilitating quick and accurate connection.

[0049] 6. Corrosion resistance:

[0050] The sealing ring made of fluororubber material is not only high-temperature resistant but also has excellent corrosion resistance characteristics, suitable for a variety of harsh working environments.

[0051] 7. Flow rate controllable:

[0052] By adjusting the input compressed air flow rate, the magnitude of the generated negative pressure can be conveniently adjusted to achieve precise control of the air extraction speed.

[0053] 8. Compact design:

[0054] Both the pump body and the pump core are designed in a shape similar to a "soil" character, optimizing the space utilization rate and suitable for installation and use in a limited space. Brief description of the drawings

[0055] Figure 1 is a cross-sectional view of the present utility model;

[0056] Figure 2 is a cross-sectional view of the present utility model installed on the mounting base.

[0057] In the figure:

[0058] 1. Pump body; 2. Pump core; 3. First channel; 4. Second channel; 5. Sample gas outlet; 6. First opening; 7. Compressed air; 8. Second opening; 9. Negative pressure gas; 10. Narrow part; 11. First fixing ring; 12. Second fixing ring; 13. Third fixing ring; 14. Fourth fixing ring; 15. Mounting base; 16. First sealing ring; 17. Second sealing ring; 18. Third sealing ring; 19. Fourth sealing ring; 20. Third opening; 21. Fourth opening. Detailed implementation manners

[0059] The following further elaborates on the present utility model in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model and not to limit the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0060] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0061] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0062] In the description of this embodiment, terms such as "upper," "lower," "front," "rear," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0063] Combine Figure 1-Figure 2 As shown, the utility model provides a vacuum air pump power device, comprising:

[0064] Pump body 1, pump core 2;

[0065] The pump body 1 and the pump core 2 are respectively provided with a first channel 3 and a second channel 4 at the axial center positions;

[0066] The front end of the first channel 3 is provided with a sample gas outlet 5, and the front end of the pump core 2 is connected to the first channel 3;

[0067] The side wall of the pump body 1 is provided with a first opening 6 communicating with the first channel 3 for compressed air 7 to enter;

[0068] The side wall of the pump core 2 is provided with a second opening 8 communicating with the second channel 4 for inputting compressed air 9;

[0069] The first opening 6 is provided at the docking position between the pump body 1 and the front end of the pump core 2;

[0070] The second opening 8 is for negative pressure gas 9. The second channel 4 is docked with the first channel 3 for guiding compressed gas to the first channel 3. The compressed gas is used to generate negative pressure at the second opening 8, so as to guide the gas to be sampled to enter and be discharged from the sample gas outlet 5 together with the compressed gas.

[0071] A first sealing ring 16 is provided at the docking position between the tail of the pump body 1 and the front end of the pump core 2 to ensure airtightness under high temperature conditions.

[0072] The inner diameter of the first channel 3 is provided with a narrow part 10, and both sides of the narrow part 10 gradually become larger for squeezing the gas.

[0073] A first fixing ring 11 and a second fixing ring 12 are sequentially arranged on the outer wall of the pump body 1 from left to right.

[0074] A third fixing ring 13 and a fourth fixing ring 14 are sequentially arranged on the outer wall of the pump core 2 from left to right.

[0075] The device further includes a mounting base 15;

[0076] The pump body 1 and the pump core 2 are embedded in the mounting base 15, and the axial movement of the pump body 1 and the pump core 2 is restricted by the first fixing ring 11, the second fixing ring 12, the third fixing ring 13 and the fourth fixing ring 14;

[0077] A second sealing ring 17 and a third sealing ring 18 are respectively arranged between the left side of the first fixing ring 11, the left side of the second fixing ring 12 and the mounting base 15;

[0078] The first sealing ring 16 is arranged between the right side of the second fixing ring 12 and the left side of the third fixing ring 13;

[0079] A fourth sealing ring 19 is arranged between the outer wall of the fourth fixing ring 14 and the mounting base 15.

[0080] A third opening 20 and a fourth opening 21 are further arranged on the side wall of the mounting base 15;

[0081] The third opening 20 and the fourth opening 21 respectively correspond to the positions of the first opening 6 and the second opening 8 for docking.

[0082] Both the pump body 1 and the pump core 2 are in a shape similar to a soil character.

[0083] The materials of the first sealing ring 16, the second sealing ring 17, the third sealing ring 18 and the fourth sealing ring 19 are all fluororubber, which is corrosion-resistant and high-temperature resistant.

[0084] The pump body 1 and the pump core 2 are connected by cold-pressing sealing assembly.

[0085] The principle of this utility model is as follows:

[0086] Compressed air 7 in:

[0087] The compressed air 7 enters the second channel 4 inside the pump core 2 through the second opening 8 on the side wall of the pump core 2 .

[0088] The compressed air 7 flows forward along the second channel 4 and is ejected from the front end of the pump core 2 .

[0089] Negative pressure generation:

[0090] When the compressed air 7 is ejected from the front end of the pump core 2 , it passes through the first opening 6 at the joint between the pump body 1 and the pump core 2 .

[0091] Since the high-speed flowing compressed air 7 forms a local low-pressure area at the second opening 8 (ie, the Venturi effect), a negative pressure is generated at the second opening 8 .

[0092] Gas extraction:

[0093] The generated negative pressure causes the external gas to be measured (such as the flue gas in the chimney) to be sucked in through the second opening 8 on the side wall of the pump core 2 .

[0094] The sucked gas then enters the second channel 4 in the pump core 2 .

[0095] Gas discharge:

[0096] In the second channel 4 , the sucked gas flows along with the compressed air 7 .

[0097] The mixed gas continues to move along the first channel 3 and is eventually discharged from the sample gas outlet 5 at the front end of the pump body 1 .

[0098] Sealing and fixing:

[0099] The connections between the pump body 1 and the pump core 2 as well as between them and the mounting seat 15 are all made of sealing rings made of fluororubber, which ensures good air tightness under high temperature conditions.

[0100] The first fixing ring 11 , the second fixing ring 12 , the third fixing ring 13 and the fourth fixing ring 14 are used to limit the axial movement of the pump body 1 and the pump core 2 , thereby ensuring the overall stability and sealing performance of the device.

[0101] Optimized design:

[0102] The first channel 3 is provided with a narrow portion 10 on its inner diameter, which helps to further improve the efficiency of the gas flow process and enables the gas to be more evenly mixed and discharged after being squeezed.

[0103] The pump body 1 and the pump core 2 adopt a design similar to the shape of Chinese character "tu", which not only improves the structural strength but also facilitates the assembly with other components.

[0104] Installation and maintenance:

[0105] The whole device is embedded in a mounting seat 15, and the first opening 6 on the pump body 1 and the second opening 8 on the pump core 2 are respectively corresponding to the external third opening 20 and fourth opening 21, which is convenient for quick and accurate connection.

[0106] Since there are no moving parts or electrical components, the device has a long service life and hardly requires maintenance.

[0107] In summary, this vacuum air pump power device utilizes a simple mechanical structure and the principle of fluid mechanics to achieve an efficient, reliable and easy-to-maintain gas extraction function, and is particularly suitable for application scenarios such as CEMS systems that require long-term stable operation.

[0108] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields shall be included within the protection scope of the present utility model.

Claims

1. A vacuum air pump power device, characterized in that: Comprising: A pump body and a pump core; A first channel and a second channel are respectively provided at the axial center positions of the pump body and the pump core; A sample gas outlet is provided at the front end of the first channel, and the front end of the pump core is docked with the first channel; A first opening communicating with the first channel is provided on the side wall of the pump body; A second opening communicating with the second channel is provided on the side wall of the pump core; The first opening is provided at the docking position of the front ends of the pump body and the pump core; The first opening is used for inputting compressed air, the second channel is docked with the first channel and is used for guiding the compressed gas to the second channel, and the compressed gas is used for generating negative pressure at the second opening, so as to guide the gas to be sampled to enter and be discharged from the sample gas outlet together with the compressed gas.

2. The vacuum air pump power device according to claim 1, wherein A first sealing ring is provided at the docking position of the tail of the pump body and the front end of the pump core to ensure airtightness under high temperature conditions.

3. The vacuum air pump power device according to claim 1, wherein A narrow part is provided in the inner diameter of the first channel, and both sides of the narrow part gradually become larger for squeezing the gas.

4. The vacuum air pump power device according to claim 2, wherein A first fixing ring and a second fixing ring are successively provided on the outer wall of the pump body from left to right.

5. The vacuum air pump power device according to claim 4, wherein A third fixing ring and a fourth fixing ring are successively provided on the outer wall of the pump core from left to right.

6. The vacuum air pump power device according to claim 5, wherein The device further includes a mounting seat; The pump body and the pump core are embedded in the mounting seat, and the axial movement of the pump body and the pump core is restricted by the first fixing ring, the second fixing ring, the third fixing ring and the fourth fixing ring; A second sealing ring and a third sealing ring are respectively provided between the left sides of the first fixing ring and the second fixing ring and the mounting seat; The first sealing ring is provided between the right side of the second fixing ring and the left side of the third fixing ring; A fourth sealing ring is provided between the outer wall of the fourth fixing ring and the mounting seat.

7. The vacuum air pump power device according to claim 6, wherein A third opening and a fourth opening are further provided on the side wall of the mounting seat; The third opening and the fourth opening respectively correspond to the positions of the first opening and the second opening for docking.

8. The vacuum air pump power device according to claim 1, wherein Both the pump body and the pump core are in a shape similar to a Chinese character 'tu'.

9. The vacuum air pump power device according to claim 4, wherein The materials of the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are all fluororubber, which is corrosion-resistant and high-temperature resistant.

10. The vacuum air pump power device according to claim 1, wherein The pump body and the pump core are connected by a cold press sealing assembly method.

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