Automatic constant-temperature gas distribution device

Abstract

The utility model discloses an automatic constant-temperature gas distribution device in the technical field of sulfur, nitrogen and chlorine content detection and analysis, and aims to solve the problems that in the prior art, a gas distribution device generally needs to be manually switched to input sample gas into a sulfur nitrogen instrument or a chlorine tester for detection; the problem that the property of the sample gas is changed due to the fact that water in the sample gas is easily condensed in a low-temperature environment and condensed water adsorbs water-soluble components in the sample gas in the prior art is solved. The air distribution seat comprises an air distribution seat body and an air distribution seat, an air distribution valve is arranged on one side of the outer wall of the air distribution seat, an air inlet cavity and two air outlet cavities are formed in the air distribution seat, and a constant-temperature heater is arranged on the inner wall of the air distribution seat body and below the air distribution seat; the temperature of the gas distribution seat and the temperature of the gas distribution valve are kept above 100 DEG C through the constant-temperature heater, so that moisture in sample gas is prevented from being condensed in the gas inlet cavity, the gas outlet cavity and the gas distribution valve, and the property of the sample gas is prevented from being changed.

Description

Technical Field

[0001] The utility model relates to an automatic constant-temperature gas distributing device, belonging to the technical field of sulfur, nitrogen and chlorine content detection and analysis. Background Art

[0002] In petroleum and chemical products, the content of sulfur, nitrogen and chlorine elements is an important detection item. The detection of sulfur content is crucial for ensuring product quality, preventing corrosion of metal equipment, and improving production efficiency and safety. Sulfur will generate sulfur dioxide and sulfur trioxide during the combustion process, and these compounds can react with the moisture in the oil to form acidic substances. In addition, the detection of sulfur content in soil and plants is of great significance for evaluating soil quality and plant growth conditions, and helps to improve agricultural production efficiency and product quality. Therefore, the detection of sulfur content in oil products is of great significance for reducing pollution and protecting the environment. The level of nitrogen content not only affects the quality of the product, but also causes catalyst poisoning during the production process, increasing production costs; in atmospheric environmental monitoring, the content of nitrogen compounds is an important indicator of air quality. Excessive chlorine content will damage the engine. Among them, combustion efficiency is an important consideration factor. During combustion, chlorine elements will not burn completely, resulting in the generation of substances such as furnace scale and carbon deposition, reducing the combustion efficiency, and at the same time increasing the wear and failure rate of the engine, causing damage to the surrounding environment and ecosystem. Secondly, the chlorides generated by combustion are released into the atmosphere, which will also irritate the eyes and respiratory system, posing a hazard to people's physical health. To sum up, the necessity of sulfur, nitrogen and chlorine content detection is reflected in multiple fields, from the quality control of oil products to environmental protection, and then to scientific research, all of which require accurate detection of sulfur, nitrogen and chlorine content. At present, most of the detection methods for sulfur and nitrogen content adopt optical methods. The sulfur content can be detected separately by a sulfur analyzer, or the sulfur and nitrogen contents can be detected simultaneously by a sulfur-nitrogen analyzer with a single injection; most of the detection methods for chlorine content adopt the coulomb method, and the chlorine content is detected separately by a chlorine analyzer. Generally, the composition of gas samples is relatively complex, containing both components to be analyzed and detected, and may also contain particulate matter or moisture. Water will adsorb the components in the sample gas that can dissolve in water, which is likely to affect the subsequent detection results.

[0003] In the prior art, when detecting the sulfur, nitrogen and chlorine content, it is usually necessary to manually switch the gas distributing device to input the sample gas into the sulfur-nitrogen analyzer or chlorine analyzer for detection. After the sample gas passes through the gas distributing device, the internal moisture is easily condensed in a low-temperature environment, and the condensed water will adsorb the components in the sample gas that can dissolve in water, resulting in a change in the properties of the sample gas and affecting the accuracy of the subsequent detection work. Summary of the Utility Model

[0004] The purpose of the present utility model is to overcome the deficiencies in the prior art and provide an automatic constant-temperature gas distribution device, so as to solve the problem in the prior art that when detecting the sulfur, nitrogen, and chlorine contents, it is usually necessary to manually switch the gas distribution device to input the sample gas into a sulfur-nitrogen analyzer or a chlorine analyzer for detection, and the properties of the sample gas are likely to change after passing through the gas distribution device.

[0005] To solve the above technical problems, the present utility model is implemented by adopting the following technical solutions:

[0006] The present utility model provides an automatic constant-temperature gas distribution device, which includes a gas distribution seat body and a gas distribution seat arranged at the bottom of the inner wall of the gas distribution seat body. One side of the outer wall of the gas distribution seat is provided with a gas distribution valve. An air inlet cavity and two air outlet cavities are formed inside the gas distribution seat. One end of the air inlet cavity and one end of the two air outlet cavities are both communicated with the gas distribution valve. A constant-temperature heater is arranged on the inner wall of the gas distribution seat body below the gas distribution seat.

[0007] Further, the other ends of the two air outlet cavities are respectively connected to a sulfur-nitrogen analyzer and a chlorine analyzer.

[0008] Further, the gas distribution valve is a two-position three-way solenoid valve.

[0009] Further, a mounting block is detachably connected to the side of the outer wall of the gas distribution seat away from the gas distribution valve. A cavity is formed inside the mounting block. A placement cavity communicated with the cavity is formed on one side of the outer wall of the mounting block. When the gas distribution seat is fixedly connected to the mounting block, the cavity is communicated with the air inlet cavity through the placement cavity, and a filter membrane is arranged in the placement cavity in a matching manner.

[0010] Further, a sealing ring is arranged in the placement cavity on one side of the filter membrane in a matching manner.

[0011] Further, an air inlet end interface is arranged at the top of the mounting block. An air inlet pipe is arranged on the inner wall of the air inlet end interface in a matching manner. The air inlet pipe is communicated with the cavity. A locking pipe fitting matching with the air inlet end interface is arranged on the outer wall of the air inlet pipe.

[0012] Further, an air inlet pipe sealing ring is arranged between the air inlet end interface and the locking pipe fitting.

[0013] Further, air outlet pipes are arranged on both sides of the outer wall of the gas distribution seat. The two air outlet pipes are respectively communicated with the two air outlet cavities.

[0014] Further, an air outlet pipe sealing ring is sleeved on the outer wall of one of the air outlet pipes.

[0015] Further, a heat preservation shell is arranged on the outer wall of the gas distribution seat body.

[0016] Compared with the prior art, the beneficial effects achieved by the present utility model:

[0017] 1. The automatic constant-temperature gas distribution device heats the gas distribution seat through the operation of the constant-temperature heater, and heats the gas distribution valve through the gas distribution seat, so that the gas distribution seat and the gas distribution valve are maintained at a temperature above 100 °C, thereby preventing the moisture in the sample gas from condensing in the intake cavity, the outlet cavity and the gas distribution valve, preventing the condensed water from adsorbing the water-soluble components in the sample gas, and avoiding the change of the properties of the sample gas after flowing through the gas distribution seat and the gas distribution valve, ensuring the stability of the subsequent detection work;

[0018] 2. The automatic constant-temperature gas distribution device filters the input sample gas through the filter membrane, thereby preventing the particulate matter in the sample gas from entering the subsequent sulfur-nitrogen analyzer or chlorine analyzer, avoiding affecting the detection results, and at the same time preventing the particulate matter from blocking the gas distribution valve and the outlet cavity, ensuring the stability of the device during operation. Description of the Drawings

[0019] Figure 1 is a top-sectional view of an automatic constant-temperature gas distribution device provided according to an embodiment of the present invention;

[0020] Figure 2 is a side-sectional view of an automatic constant-temperature gas distribution device provided according to an embodiment of the present invention.

[0021] In the figure: 1. Gas distribution seat body; 2. Gas distribution valve; 3. Gas distribution seat; 4. Intake end interface; 5. Filter membrane; 6. Intake pipe; 7. Constant-temperature heater; 8. Sealing ring; 9. Thermal insulation housing; 10. Locking pipe fitting; 11. Intake pipe sealing ring; 12. Outlet pipe; 13. Outlet pipe sealing ring; 14. Placing cavity; 15. Intake cavity; 16. Outlet cavity; 17. Installation block; 18. Cavity. Detailed Embodiments

[0022] The present invention will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and cannot be used to limit the protection scope of the present invention.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0025] As Figure 1-2 shown, the present utility model provides an automatic constant temperature gas distribution device, which includes a gas distribution seat body 1 and a gas distribution seat 3 provided at the bottom of the inner wall of the gas distribution seat body 1. One side of the outer wall of the gas distribution seat 3 is provided with a gas distribution valve 2. An air inlet cavity 15 and two air outlet cavities 16 are formed inside the gas distribution seat 3. One end of the air inlet cavity 15 and one end of the two air outlet cavities 16 are both communicated with the gas distribution valve 2. A constant temperature heater 7 is provided on the inner wall of the gas distribution seat body 1 below the gas distribution seat 3.

[0026] Specifically, during operation, the main body 1 of the gas distribution seat supports the gas distribution seat 3, inputs the sample gas into the intake cavity 15, and then the sample gas enters the gas distribution valve 2. According to the actual working requirements, the sample gas is started and switched to the required outlet cavity 16, so as to realize the automatic switching of the sample gas, and the sample gas is detected by the sulfur-nitrogen analyzer and the chlorine analyzer; when the sample gas flows inside the intake cavity 15 and the outlet cavity 16, through the operation of the constant temperature heater 7 in this application, the gas distribution seat 3 is heated, and the gas distribution valve 2 is heated through the gas distribution seat 3, so that the gas distribution seat 3 and the gas distribution valve 2 are maintained at a temperature above 100 °C, thereby preventing the moisture in the sample gas from condensing in the intake cavity 15, the outlet cavity 16 and the gas distribution valve 2, and preventing the condensed water from adsorbing the components in the sample gas that can dissolve in water, so as to prevent the properties of the sample gas from changing after flowing through the gas distribution seat 3 and the gas distribution valve 2, and ensuring the stability of the subsequent detection work.

[0027] When this device is in use, the sulfur-nitrogen analyzer and the chlorine analyzer can be integrated into one instrument, and then through the automatic switching of the sample gas in this application, the sample gas can automatically enter the sulfur-nitrogen analyzer or the chlorine analyzer according to the needs, while preventing the properties of the sample gas from changing. The staff can freely perform the detection work of different elements according to one instrument, improving the personnel utilization rate and meeting the requirements of modern laboratories for analysis and detection.

[0028] In an embodiment, the other ends of the two outlet cavities 16 are respectively connected to the sulfur-nitrogen analyzer and the chlorine analyzer. After the gas distribution valve 2 inputs the sample gas into the required outlet cavity 16, the subsequent detection work is completed by the sulfur-nitrogen analyzer and the chlorine analyzer; optionally, the gas distribution valve 2 is a two-position three-way solenoid valve, and the gas distribution valve 2 is corrosion-resistant and anti-adsorption.

[0029] As Figure 1-2 shown, in an embodiment, a mounting block 17 is detachably connected to the outer wall of the gas distribution seat 3 on the side away from the gas distribution valve 2. A cavity 18 is formed in the mounting block 17, and a placement cavity 14 communicating with the cavity 18 is formed on one side of the outer wall of the mounting block 17. When the gas distribution seat 3 is fixedly connected to the mounting block 17, the cavity 18 communicates with the intake cavity 15 through the placement cavity 14, and a filter membrane 5 is fitted in the placement cavity 14; a sealing ring 8 is fitted on one side of the filter membrane 5 in the placement cavity 14.

[0030] Specifically, the sample gas is input into the intake cavity 15 through the cavity 18. The filter membrane 5 is used to filter the input sample gas. When the sample gas is input into the cavity 18, it is filtered by the filter membrane 5 in the placement cavity 14 and then enters the intake cavity 15, thereby preventing the particulate matter in the sample gas from entering the subsequent sulfur-nitrogen analyzer or chlorine analyzer, avoiding affecting the detection results, and at the same time preventing the particulate matter from blocking the gas distribution valve 2 and the outlet cavity 16, ensuring the stability of the device during operation; optionally, the filter membrane 5 is a micron-level particulate filter membrane; the sealing ring 8 is used to seal the filter membrane 5 to ensure the filtering effect of the filter membrane 5 on the sample gas; when the filter membrane 5 is used for a long time, the mounting block 17 can be removed and the filter membrane 5 can be taken out for replacement.

[0031] In an embodiment, an intake end interface 4 is provided at the top of the mounting block 17. An intake pipe 6 is provided on the inner wall of the intake end interface 4 in a matching manner. The intake pipe 6 is communicated with the cavity 18. A locking pipe fitting 10 is provided on the outer wall of the intake pipe 6 and is matched with the intake end interface 4. An intake pipe sealing ring 11 is provided between the intake end interface 4 and the locking pipe fitting 10.

[0032] Specifically, the sample gas enters the cavity 18 through the intake pipe 6 in the intake end interface 4. The locking pipe fitting 10 is used to ensure the stability when the intake pipe 6 is connected to the intake end interface 4. The intake pipe sealing ring 11 is used to seal the intake pipe 6 and the intake end interface 4 to avoid leakage of the sample gas when it is input into the cavity 18, ensuring the safety of the device.

[0033] As Figure 1 shown, in an embodiment, outlet pipes 12 are provided on both sides of the outer wall of the gas distribution seat 3. The two outlet pipes 12 are respectively communicated with the two outlet cavities 16. An outlet pipe sealing ring 13 is sleeved on the outer wall of one of the outlet pipes 12; the constant temperature heater 7 heats the outlet pipes 12 through the gas distribution seat 3. Through the outlet pipes 12, the outlet cavities 16 can be better connected to the sulfur-nitrogen analyzer and the chlorine analyzer. The outlet pipe sealing ring 13 is used for sealing to avoid leakage of the sample gas, ensuring the safety of the device.

[0034] In an embodiment, a heat preservation shell 9 is provided on the outer wall of the gas distribution seat body 1. Generally, the heat preservation shell 9 plays a heat preservation role for the gas distribution seat 3, reducing energy consumption while keeping the temperature of the gas distribution seat 3 stable and avoiding affecting the properties of the sample gas.

[0035] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. An automatic constant-temperature gas distribution device, characterized in that, It includes a gas distribution seat body (1) and a gas distribution seat (3) provided at the bottom of the inner wall of the gas distribution seat body (1). A gas distribution valve (2) is provided on one side of the outer wall of the gas distribution seat (3). An intake cavity (15) and two outlet cavities (16) are formed inside the gas distribution seat (3). One end of the intake cavity (15) and one end of the two outlet cavities (16) are both communicated with the gas distribution valve (2). A constant temperature heater (7) is provided on the inner wall of the gas distribution seat body (1) below the gas distribution seat (3).

2. The automatic constant-temperature gas distribution device according to claim 1, characterized in that The other ends of the two outlet cavities (16) are respectively connected to a sulfur-nitrogen analyzer and a chlorine analyzer.

3. The automatic constant-temperature gas distributing device according to claim 1, characterized in that, The gas distribution valve (2) is a two-position three-way solenoid valve.

4. The automatic constant-temperature gas distribution device according to claim 1, wherein A mounting block (17) is detachably connected to the side of the outer wall of the gas distribution seat (3) away from the gas distribution valve (2). A cavity (18) is formed inside the mounting block (17). A placement cavity (14) communicated with the cavity (18) is formed on one side of the outer wall of the mounting block (17). When the gas distribution seat (3) is fixedly connected to the mounting block (17), the cavity (18) is communicated with the intake cavity (15) through the placement cavity (14), and a filter membrane (5) is fitted in the placement cavity (14).

5. The automatic constant-temperature gas distribution device according to claim 4, characterized in that, A sealing ring (8) is fitted on one side of the filter membrane (5) in the placement cavity (14).

6. The automatic constant-temperature gas distributing device according to claim 4, characterized in that, An intake end interface (4) is provided at the top of the mounting block (17). An intake pipe (6) is fitted on the inner wall of the intake end interface (4). The intake pipe (6) is communicated with the cavity (18). A locking pipe fitting (10) matching the intake end interface (4) is provided on the outer wall of the intake pipe (6).

7. The automatic constant-temperature gas distribution device according to claim 6, characterized in that, An intake pipe sealing ring (11) is provided between the intake end interface (4) and the locking pipe fitting (10).

8. The automatic constant-temperature gas distributing device according to claim 1, characterized in that, Outlet pipes (12) are provided on both sides of the outer wall of the gas distribution seat (3). The two outlet pipes (12) are respectively communicated with the two outlet cavities (16).

9. The automatic constant-temperature gas distribution device according to claim 8, characterized in that An outlet pipe sealing ring (13) is sleeved on the outer wall of one of the outlet pipes (12).

10. The automatic constant-temperature gas distribution device according to claim 1, characterized in that, A heat preservation shell (9) is provided on the outer wall of the gas distribution seat body (1).

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