A compressor nitrogen detection device

Abstract

The utility model relates to gas detection equipment technical field, concretely relates to a compressor nitrogen detection equipment, including detector main part, is equipped with gas path passageway, nitrogen sensor and control display module in the detector main part, the one side detachably connected of detector main part has integrated sampling probe, and the inside of detector main part is equipped with pretreatment bin, the integrated sampling probe is connected with the entrance of pretreatment bin through the connecting plug, the end of integrated sampling probe is the spherical probe that is equipped with a plurality of radial sampling holes, and the inside of integrated sampling probe is equipped with coarse -effect filter screen, the pretreatment bin fixed mounting on the lateral wall in the detector main part, its inside is equipped with cyclone separator, precision filter and heating module in proper order, the outlet of pretreatment bin is connected to the gas inlet end of nitrogen sensor through pipeline, the front of detector main part is equipped with a maintenance door that can turn over and open.

Description

Technical Field

[0001] This utility model relates to the field of gas detection equipment technology, specifically to a compressor nitrogen detection device. Background Technology

[0002] Compressor nitrogen detection equipment is a key instrument in industrial compressor systems used to monitor the nitrogen content in lubricating oil or process gases. Its core function is to collect gas samples, pre-process them, and then use sensors to detect the nitrogen concentration, providing data support for compressor operating status assessment, fault early warning, and process parameter adjustment. This type of equipment is widely used in petrochemical, power, and machinery manufacturing industries, and is of great significance for ensuring the safe and stable operation of compressors.

[0003] However, existing compressor nitrogen detection equipment suffers from the following prominent problems: First, the sampling probes are mostly single-hole straight tube structures, resulting in low sampling efficiency and susceptibility to blockage by particulate impurities in the gas, leading to delayed or inaccurate detection data. Second, the pretreatment system only includes a single filtration stage, which cannot effectively separate liquid oil and large dust particles from the gas, affecting sensor lifespan and detection accuracy. Third, equipment maintenance requires disassembling multiple outer casing components to access internal core components (such as the pretreatment chamber and sensors), making the operation cumbersome and prone to secondary contamination. Fourth, the equipment has a single installation method and lacks a universal design adaptable to different installation scenarios. These problems severely restrict the reliability and practicality of nitrogen detection equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a compressor nitrogen detection device that is compact in structure, highly efficient in sampling, has complete preprocessing, and is easy to maintain.

[0005] The present invention provides a compressor nitrogen detection device, comprising a detector body, wherein the detector body contains a gas path channel, a nitrogen sensor, and a control display module. An integrated sampling probe is detachably connected to one side of the detector body, and a pretreatment chamber is provided inside the detector body. The integrated sampling probe is connected to the inlet of the pretreatment chamber via a connector plug. The end of the integrated sampling probe is a spherical probe with multiple radial sampling holes, and a coarse filter is provided inside the integrated sampling probe. The pretreatment chamber is fixedly installed on the side wall inside the detector body, and a cyclone separator, a precision filter, and a heating module are arranged sequentially inside it. The outlet of the pretreatment chamber is connected to the inlet of the nitrogen sensor via a pipeline. A flip-open maintenance door is provided on the front of the detector body, and the control display module is located on the maintenance door. An operation panel electrically connected to the control display module is provided on the inside of the maintenance door.

[0006] As a preferred embodiment of this utility model, the spherical probe is made of 316 stainless steel, the aperture of the plurality of radial sampling holes is 1-2mm, and the plurality of radial sampling holes are symmetrically and uniformly distributed.

[0007] As a preferred technical solution of this utility model, the connector is a threaded connector, and a sealing ring is provided at the connection between the connector and the integrated sampling probe and the pretreatment chamber inlet.

[0008] As a preferred technical solution of this utility model, the pretreatment chamber is made of transparent polycarbonate material, and its bottom is provided with a rotatable drain valve connected to the bottom of the cyclone separator.

[0009] As a preferred technical solution of this utility model, the heating module is a heating cable wrapped around the outside of the pipeline of the pretreatment chamber, and its working temperature is controlled at 40℃±5℃. A temperature sensor is provided inside the pretreatment chamber.

[0010] As a preferred embodiment of this utility model, the maintenance door is connected to the main body of the detector via a hinge, and is sealed and locked by a magnetic suction strip when closed.

[0011] As a preferred technical solution of this utility model, the main body of the detector is provided with waist-shaped holes on both sides for wall mounting, and a waterproof connector for wire threading is provided on one side of the detector.

[0012] The advantages of this utility model compared with the prior art are as follows: 1. High-efficiency sampling and anti-clogging: The spherical structure of the integrated sampling probe, combined with symmetrically distributed 1-2mm radial sampling holes, increases the sampling area and reduces the gas flow rate. Combined with the corrosion resistance of 316 stainless steel and the preliminary filtration of the coarse filter, it effectively reduces the risk of particulate impurities clogging and improves sampling stability and continuity.

[0013] 2. Multi-stage pretreatment ensures accuracy: The pretreatment chamber is equipped with a cyclone separator (to separate large particles of liquid oil), a precision filter (to remove fine dust), and a heating module with a heat tracing cable (to maintain a constant temperature of 40℃±5℃ to prevent condensation). The three-stage pretreatment process significantly improves gas purity, avoids impurities from contaminating the sensor, extends its service life, and ensures detection accuracy.

[0014] 3. Convenient maintenance design: The maintenance door is double-secured by hinges and magnetic strips. After flipping it open, the pretreatment chamber and nitrogen sensor are directly exposed without disassembling other outer shell parts, which greatly simplifies the maintenance process. The transparent polycarbonate pretreatment chamber makes it easy to observe the internal dirt accumulation. With the bottom drain valve that can be turned open, it can quickly drain and clean the dirt.

[0015] 4. Flexible installation and adaptability: The waist-shaped holes on both sides of the main body of the detector support wall mounting, and the waterproof connector on one side meets the requirements of circuit protection, adapting to the complex installation environment of industrial sites and improving the versatility of the equipment. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a compressor nitrogen detection device according to the present invention.

[0017] Figure 2 This is a structural diagram of a compressor nitrogen detection device according to the present invention.

[0018] Figure 3 This is a three-dimensional cross-sectional view of the integrated sampling probe of a compressor nitrogen detection device according to this utility model.

[0019] Figure 4 This is a structural diagram of the pretreatment chamber of a compressor nitrogen detection device according to this utility model.

[0020] As shown in the figure: 1. Main body of the detector; 2. Nitrogen sensor; 3. Control and display module; 4. Integrated sampling probe; 5. Pretreatment chamber; 6. Connecting plug; 7. Radial sampling hole; 8. Spherical probe; 9. Coarse filter; 10. Cyclone separator; 11. Precision filter; 12. Heating module; 13. Maintenance door; 14. Operation panel; 15. Drain valve; 16. Temperature sensor; 17. Hinge; 18. Magnetic suction strip; 19. Waist-shaped hole; 20. Waterproof connector. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention provides a compressor nitrogen detection device, including a detector body 1, which contains a gas passage, a nitrogen sensor 2 and a control and display module 3.

[0024] As per the instruction manual Figure 1-4 As shown, an integrated sampling probe 4 is detachably connected to one side of the main body 1 of the detector, and a pre-treatment chamber 5 is provided inside the main body 1 of the detector. Waist-shaped holes 19 for wall mounting are provided on both sides of the main body 1 of the detector, and a waterproof connector 20 for wire threading is provided on one side of the detector.

[0025] In this invention, the integrated sampling probe 4 is connected to the inlet of the pretreatment chamber 5 via a connector 6. The connector 6 is a threaded connector, and sealing rings are provided at the connection points between the connector 6 and the integrated sampling probe 4 and the inlet of the pretreatment chamber 5, facilitating quick disassembly and assembly of the sampling probe and making cleaning or replacement convenient without tools. The end of the integrated sampling probe 4 is a spherical probe 8 with multiple radial sampling holes 7. The spherical probe 8 is made of 316 stainless steel, and the diameter of the multiple radial sampling holes 7 is 1.5mm. The multiple radial sampling holes 7 are symmetrically and evenly distributed to ensure 360° all-round sampling, which can obtain more representative gas samples and is not easily completely blocked by impurities in one direction. The integrated sampling probe 4 has a coarse filter 9 inside, which provides the first level of protection, intercepting large particulate impurities and extending the life of the downstream precision filter element.

[0026] In this invention, the pretreatment chamber 5 is fixedly installed on the side wall inside the main body 1 of the detector. The pretreatment chamber 5 is made of transparent polycarbonate and contains a cyclone separator 10, a precision filter 11, and a heating module 12 arranged sequentially inside. The heating module 12 is a heating cable wrapped around the outside of the pipeline of the pretreatment chamber 5, and its working temperature is controlled at 40℃±5℃. A temperature sensor 16 is installed inside the pretreatment chamber 5 to accurately control the temperature of the sample gas and prevent condensation of the sample gas in cold environments, which could cause damage or inaccurate readings due to moisture entering the sensor. The constant temperature of 40℃ can evaporate a small amount of liquid water without being too high and affecting the sensor performance. The outlet of the pretreatment chamber 5 is connected to the inlet of the nitrogen sensor 2 through a pipeline, and its bottom is equipped with a rotatable drain valve 15 connected to the bottom of the cyclone separator 10.

[0027] In this utility model, the front of the main body 1 of the detector is provided with a flip-open maintenance door 13. The maintenance door 13 is connected to the main body 1 of the detector by a hinge 17, and is sealed and locked by a magnetic suction strip 18 when closed. The control display module 3 is set on the maintenance door 13, and the inner side of the maintenance door 13 is provided with an operation panel 14 electrically connected to the control display module 3. After opening the maintenance door 13, the pretreatment chamber 5 and the nitrogen sensor 2 are completely exposed to the outside, which is convenient for disassembly and maintenance. This solves the pain point of traditional equipment requiring the opening of the entire chassis, operating screws in a narrow space, and finding parts, and greatly improves maintenance efficiency and convenience.

[0028] 1. Sampling stage: Under the pressure of the compressor, the gas to be measured enters the interior of the spherical probe 8 through the radial sampling hole 7 of the integrated sampling probe 4. After being intercepted by the coarse filter screen 9, large particulate impurities are blocked, and the gas enters the pretreatment chamber 5 through the connecting plug 6.

[0029] 2. Pretreatment stage: The gas first enters the cyclone separator 10, where liquid oil and solid particles with a diameter ≥5μm are separated under centrifugal force. The separated material is deposited at the bottom of the pretreatment chamber 5. Then the gas enters the precision filter 11 to further filter fine dust with a diameter ≥0.3μm. The heating tape is started simultaneously to maintain the gas temperature at 40℃±5℃ to avoid the formation of condensate in a low-temperature environment and ensure that the gas is dry.

[0030] 3. Detection stage: The pretreated pure gas enters the nitrogen sensor 2 through the pipeline. The sensor converts the nitrogen concentration into an electrical signal, which is processed by the control and display module 3 and displayed as a real-time concentration value. It can also be transmitted to the host computer for storage and analysis through the waterproof connector 20.

[0031] 4. Maintenance stage: When cleaning or replacement of parts is required, open the maintenance door 13 (release the magnetic suction strip 18 and flip it over), directly remove the drain valve 15 at the bottom of the pretreatment chamber 5 to drain the accumulated dirt, or replace the precision filter 11 and nitrogen sensor 2. After the operation is completed, close the maintenance door 13 to resume operation.

[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A compressor nitrogen detection device, comprising a detector body (1), wherein the detector body (1) is provided with a gas path channel, a nitrogen sensor (2) and a control and display module (3), characterized in that: An integrated sampling probe (4) is detachably connected to one side of the main body (1) of the detector, and a pre-processing chamber (5) is provided inside the main body (1). The integrated sampling probe (4) is connected to the inlet of the pretreatment chamber (5) via a connector (6). The end of the integrated sampling probe (4) is a spherical probe (8) with multiple radial sampling holes (7). The interior of the integrated sampling probe (4) is equipped with a coarse filter (9). The pretreatment chamber (5) is fixedly installed on the side wall inside the main body (1) of the detector. Inside it are arranged a cyclone separator (10), a precision filter (11) and a heating module (12) in sequence. The outlet of the pretreatment chamber (5) is connected to the inlet of the nitrogen sensor (2) through a pipeline. The front of the main body (1) of the detector is provided with a maintenance door (13) that can be flipped open. The control display module (3) is located on the maintenance door (13), and the inner side of the maintenance door (13) is provided with an operation panel (14) that is electrically connected to the control display module (3).

2. The compressor nitrogen detection device according to claim 1, characterized in that: The spherical probe (8) is made of 316 stainless steel, and the aperture of the plurality of radial sampling holes (7) is 1-2 mm, and the plurality of radial sampling holes (7) are symmetrically and uniformly distributed.

3. The compressor nitrogen detection device according to claim 1, characterized in that: The connector (6) is a threaded connector, and a sealing ring is provided at the connection between it and the integrated sampling probe (4) and the inlet of the pretreatment chamber (5).

4. The compressor nitrogen detection device according to claim 1, characterized in that: The pretreatment chamber (5) is made of transparent polycarbonate and has a swivelable drain valve (15) at the bottom that is connected to the bottom of the cyclone separator (10).

5. A compressor nitrogen detection device according to claim 1, characterized in that: The heating module (12) is a heat tracing cable wrapped around the outside of the pretreatment chamber (5) and its working temperature is controlled at 40℃±5℃. The pretreatment chamber (5) is equipped with a temperature sensor (16).

6. A compressor nitrogen detection device according to claim 1, characterized in that: The maintenance door (13) is connected to the main body (1) of the detector by a hinge (17), and is sealed and locked by a magnetic suction strip (18) when closed.

7. A compressor nitrogen detection device according to claim 1, characterized in that: The detector body (1) has waist-shaped holes (19) on both sides for wall mounting, and a waterproof connector (20) for wire threading on one side of the detector.

Images