Zero gas generator catalyst reaction chamber heating device
By designing a catalyst reaction chamber heating device that combines metal blocks to form parallel cavity, the problems of temperature concentration and uneven heating in the existing heating mode are solved, the completeness of the catalyst reaction and the purity of zero gas are achieved, and the measurement results of the atmospheric monitoring system are improved.
Patent Information
- Application Number
- CN202421935729.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing catalyst reaction chamber heating methods have problems such as concentrated temperature, easy burnout of temperature lines, and uneven heating, resulting in incomplete catalyst reaction and impure zero gas, which affects the measurement results of the atmospheric monitoring system.
A catalytic reaction chamber heating device of zero gas generator is designed, and a parallel cavity is formed by combining two metal blocks, a catalytic reaction chamber is embedded, and a heating chamber and a heating rod are set up in the cavity. The third tube is used to extend the airflow heating time, and a temperature sensor and a bolt fixing structure are equipped to ensure uniform and stable heating.
The uniform heating of the catalyst reaction chamber is achieved, the time when the gas flow is heated is extended, the completeness of the catalyst reaction is improved, the purity of zero gas is ensured, and the measurement results of the atmospheric monitoring system are improved.
Smart Images
Figure CN223027080U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of catalyst reaction chamber heating, in particular to a heating device for a catalyst reaction chamber of a zero gas generator. Background Technique
[0002] A zero gas generator is an intelligent instrument used to generate pure gas for calibrating the zero points of various monitoring instruments in an atmospheric automatic monitoring system and dilution gas for standard gas. It can be used alone as the zero gas source of a calibrator. The zero gas generator is supplied with gas by an air compressor system. Compressed air is input into the zero gas generator. First, it passes through a molecular sieve drying filter to perform primary drying on the air and then enters the catalyst reaction chamber. Under the action of a catalyst and high temperature, CO is catalytically oxidized to CO2, and hydrocarbons are catalytically oxidized to CO2 and H2O. The air passes through cooling and removes water through a gas-water separator, and then successively passes through a molecular sieve drying filter and a discolored silica gel drying filter to deeply remove water and supply zero-grade air for relevant use. The step of air entering the catalyst reaction chamber for impurity removal is crucial. Therefore, the heating effect of the catalyst reaction chamber directly affects the entire impurity removal result. Regarding the catalyst reaction chamber, it is a stainless steel cylinder welded in two sections as a whole, filled with a certain amount of catalyst inside. The common heating method is to clamp two heating copper rings of a certain length on the two-section cylindrical reaction chambers respectively. When heating for a long time, this heating method has a high temperature and the temperature is concentrated. The temperature measurement wires that are too close are easily burned out, and a separate structural member is required to fix the temperature measurement sensor. In addition, there are also problems such as the insufficient length of the heating copper ring, the incomplete wrapping of the catalyst reaction chamber, and the uneven heating range. Both problems are likely to lead to poor heating effects, incomplete catalyst reaction, incomplete impurity removal, impure zero gas generated, and affect the measurement results of the atmospheric monitoring system. Content of the Utility Model
[0003] The purpose of the utility model is to provide a heating device for a catalyst reaction chamber of a zero gas generator to solve the above technical problems.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve:
[0005] A heating device for a catalyst reaction chamber of a zero gas generator includes a first block and a second block. Among them, the first block and the second block are combined. After combination, the first block and the second block form two parallel cavities;
[0006] A catalytic reaction chamber is embedded in the cavity, and the two catalytic reaction chambers are connected by a second pipe;
[0007] There are also two heating cavities between the two parallel cavities, and the two heating cavities are respectively arranged in the first block and the second block;
[0008] It also includes a heating rod which enters the heating chamber to heat the catalytic reaction chamber located in the cavity.
[0009] One end of one of the catalytic reaction chambers is equipped with a third pipe which is wound around the periphery of the combined first and second blocks to extend the heating time of the flowing gas.
[0010] Preferably, the first block is equipped with a temperature sensor which is located beside the heating rod.
[0011] Preferably, it also includes a plurality of bolts which enter the combined first and second blocks to keep the first and second blocks combined.
[0012] Preferably, one end of the other catalytic reaction chamber is equipped with a first pipe.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. In the present utility model, the first and second blocks are customized according to the outer diameter of the cylinder of the catalyst reaction chamber, with good fitting degree. After being powered on, the heating is uniform, the catalyst reaction is complete, and there are reserved holes on the first and second blocks. The temperature sensor and the heating rod only need to be put into the holes and fixed with set screws, which is convenient and fast.
[0015] 2. In the present utility model, the third pipe is directly wound around the combined first and second blocks to extend the heating time of the flowing gas in the device. Description of the Drawings
[0016] Figure 1 It is a schematic structural diagram of a heating device for the catalyst reaction chamber of a zero-gas generator;
[0017] Figure 2 It is Figure 1 an integrated diagram of the structure shown;
[0018] Figure 3 It is a schematic structural diagram of the first and second blocks;
[0019] Figure 4 It is Figure 1 a schematic structural diagram of the catalytic reaction chamber and the supporting pipelines in
[0020] Reference numerals: 1, first block; 2, second block; 3, first catalytic reaction chamber; 4, second catalytic reaction chamber; 5, first heating rod; 6, second heating rod; 7, temperature sensor; 8, first pipe; 9, second pipe; 10, third pipe; 11, bolt. Detailed Embodiments
[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following further elaborates the present utility model in conjunction with specific embodiments and drawings. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.
[0022] The following describes the specific embodiments of the present utility model with reference to the drawings.
[0023] Embodiment 1
[0024] In this embodiment, a heating device for the catalyst reaction chamber of a zero-air generator is proposed. Please refer to Figures 1-4 , the heating device for the catalyst reaction chamber of the zero-air generator includes a first block 1 and a second block 2. Among them, the first block 1 and the second block 2 are combined, and after combination, the first block 1 and the second block 2 form two parallel cavities.
[0025] Please refer to Figure 1 and Figure 2 , a first catalytic reaction chamber 3 and a second catalytic reaction chamber 4 are respectively arranged in the two cavities. Among them, the ends of the first catalytic reaction chamber 3 and the second catalytic reaction chamber 4 on the same side are connected by a second pipe 9. In this embodiment, two heating cavities are also arranged between the two parallel cavities, and the two heating cavities are respectively located in the first block 1 and the second block 2.
[0026] Further explanation, a first heating rod 5 is arranged in the heating cavity configured in the first block 1, and a second heating rod 6 is arranged in the heating cavity configured in the second block 2.
[0027] Furthermore, the first block 1 and the second block 2 are made of a metal material. In this embodiment, the metal material is preferably aluminum. The above first heating rod 5 and second heating rod 6 heat the first block 1 and the second block 2 where they are located respectively, and transfer the heat into the first catalytic reaction chamber 3 and the second catalytic reaction chamber 4.
[0028] It should be added that the first heating rod 5 and the second heating rod 6 are controlled by different temperature control units. Therefore, the first heating rod 5 and the second heating rod 6 can be combined according to requirements to make the first block 1 and the second block 2 reach different temperatures.
[0029] In this embodiment, the first block 1 is equipped with a temperature sensor 7, and the temperature sensor 7 is located beside the heating rod. It should be noted that the insertion depth of the temperature sensor 7 in the first block 1 can be adjusted.
[0030] In this embodiment, the end of the first catalytic reaction chamber 3 is equipped with a first pipe 8.
[0031] The end of the second catalytic reaction chamber 4 is equipped with a third tube 10 which is wound around the periphery of the combined first block 1 and second block 2 to extend the heating time of the flowing gas.
[0032] The installation process of the zero-air generator catalyst reaction chamber heating device proposed in this embodiment is as follows:
[0033] First, place the two catalyst reaction chambers into the grooves in the cavity formed in the first block 1;
[0034] Second, cover the second block 2 over the first block 1, and then use bolts 11 to lock and fix the first block 1 and the second block 2;
[0035] Third, place the first heating rod 5, the second heating rod 6 and the temperature sensor 7 into the corresponding chambers and tighten and fix them with setscrews;
[0036] Fourth, evenly wind the third tube 10 at one end of the second catalytic reaction chamber 4 around the periphery of the locked first block 1 and second block 2 to form the style as shown in Figure 2 shown.
[0037] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0038] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A zero gas generator catalyst reaction chamber heating device, characterized in that: Including the first block and the second block; The first block is merged with the second block, and after the merger, the first block and the second block form two parallel cavities; A catalytic reaction chamber is embedded in the cavity, and the two catalytic reaction chambers are connected by a second tube; There are two heating chambers between the two parallel cavities, and the two heating chambers are respectively arranged in the first block and the second block; It also includes a heating rod, which enters the heating cavity to heat the catalytic reaction chamber in the cavity; one end of the catalytic reaction chamber is equipped with a third tube, which is wrapped around the periphery of the first and second blocks after being combined to extend the heating time of the airflow.
2. A zero gas generator catalyst reaction chamber heating device according to claim 1, characterized in that: The first block is equipped with a temperature sensor, which is located next to the heating rod.
3. A zero gas generator catalyst reaction chamber heating device according to claim 1, characterized in that: It also includes a plurality of bolts, which enter into the combined first and second blocks to maintain the combined state of the first and second blocks.
4. A zero gas generator catalyst reaction chamber heating device according to claim 1, characterized in that: The end of the other catalytic reaction chamber is provided with a first tube.