CN219456077U - Sulfur capacity measurement system of fixed bed dry desulfurizing agent - Google Patents
Sulfur capacity measurement system of fixed bed dry desulfurizing agent Download PDFInfo
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- CN219456077U CN219456077U CN202223049320.5U CN202223049320U CN219456077U CN 219456077 U CN219456077 U CN 219456077U CN 202223049320 U CN202223049320 U CN 202223049320U CN 219456077 U CN219456077 U CN 219456077U
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Abstract
The utility model discloses a sulfur capacity measuring system of a fixed bed dry desulfurizing agent, which relates to the technical field of sulfur capacity measurement, solves the problem that the existing sulfur capacity measuring device is not suitable for sulfur capacity measurement of the fixed bed dry desulfurizing agent, improves the reliability of simulation data, and adopts the following specific scheme: the device comprises an air source device for supplying sulfur dioxide, a steam generator and a reactor, wherein the air source device and the steam generator are respectively connected with an air inlet pipe of the same electric heater through a rubber hose so as to be primarily mixed with air in the air inlet pipe, each rubber hose is provided with a flow measuring device and a flow regulating valve, an air outlet end of the electric heater is sequentially connected with a fan and an inlet pipe of the reactor, an outlet pipe of the reactor is sequentially connected with a tail gas treatment device and an exhaust pipe, and a desulfurizing agent is placed in the reactor.
Description
Technical Field
The utility model relates to the technical field of sulfur capacity measurement, in particular to a sulfur capacity measurement system of a fixed bed dry desulfurizing agent.
Background
At present, in the field of dry flue gas desulfurization, a fixed bed dry desulfurization process has wider application, and the desulfurizing agent of the process is mostly formed by stacking granular desulfurizing agents, and sulfur-containing flue gas passes through gaps among the desulfurizing agent particles under the action of pressure and is subjected to adsorption and desulfurization reaction with the desulfurizing agent particles. The process method is used for low-sulfur-content flue gas, in particular to a hot blast stove and a gas boiler, and has good applicability. The granular desulfurizing agent has larger difference of sulfur capacity performance in the reaction process because of different proportions of raw materials, different processing methods and different use conditions. In order to ensure that the granular desulfurizing agent can achieve the purpose of use and reduce the consumption in the actual use environment, the sulfur capacity value of the granular desulfurizing agent is required to be measured in advance to obtain reliable related parameters and curves, and the method is used for designing the dry desulfurization process.
The inventor finds that the current technology of various sulfur capacity measuring devices and methods has very strong pertinence, such as a sulfur capacity measuring device of Fe2O3 desulfurizing agent and a sulfur capacity measuring device of active carbon, and the sulfur capacity measuring devices are not suitable for measuring the sulfur capacity of granular desulfurizing agent in a fixed bed dry desulfurization process, and mainly have the following problems:
1. the gas distribution component for experiments has an excessive difference from the gas component under the actual operation condition of the fixed bed dry desulfurization process, especially the water vapor content;
2. after the gas distribution is finished, forced stirring and mixing are lacked, so that the mixing uniformity of the gas distribution is not high, and larger experimental deviation is caused;
3. the air distribution of the experimental device depends on the pressure of the air steel cylinder and does not configure external power, so that the air quantity for experiments is too small, and the reliability of experimental results is lower.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a sulfur capacity measuring system of a fixed bed dry desulfurizing agent, wherein a heater is respectively connected with an air source device and a steam generator, so that the content and the temperature of water vapor, air and sulfur dioxide in mixed gas can be adjusted according to the needs, the system is more in line with actual industrial data, and a fan can ensure the mixing uniformity of the gas and simultaneously improve the gas pressure so as to simulate the actual flue gas operation condition of a fixed bed desulfurization process, so that the measured data is real and reliable, and the problem that the conventional sulfur capacity measuring device is not suitable for sulfur capacity measurement of the fixed bed dry desulfurizing agent is solved.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a sulfur capacity measurement system for a fixed bed dry desulfurization agent, including an air source device for sulfur dioxide supply, a steam generator and a reactor, where the air source device and the steam generator are respectively connected with an air inlet pipe of the same electric heater through a rubber hose so as to be primarily mixed with air in the air inlet pipe, each rubber hose is provided with a flow measurement device and a flow control valve, an air outlet end of the electric heater is sequentially connected with a fan and an inlet pipe of the reactor, an outlet pipe of the reactor is sequentially connected with a tail gas treatment device and an exhaust pipe, and the desulfurization agent is placed in the reactor.
As a further implementation manner, the air source device and the steam generator are arranged in parallel.
As a further implementation mode, the air inlet pipe is of a glass fiber reinforced plastic pipeline structure, and a plurality of spoilers are arranged in the air inlet pipe along the axial direction of the air inlet pipe.
As a further implementation manner, a discharge port is arranged at the bottom of the air inlet pipe, and a discharge valve is arranged at the discharge port.
As a further implementation mode, a corrosion-resistant coating is arranged on the inner wall of the electric heater, and soft connecting pipes are arranged at the air inlet end and the air outlet end of the electric heater.
As a further implementation manner, the fan is connected with an inlet pipe at the bottom of the reactor through a rubber hose.
As a further implementation mode, the reactor is supported by a supporting frame, a first test port for measuring gas components and content is arranged at an inlet pipe at the bottom of the reactor, and a second test port is arranged at an outlet pipe at the top of the reactor.
As a further implementation mode, an insulation layer is arranged outside the reactor, a screen sheet which can be pulled and detached is arranged inside the reactor, and the desulfurizing agent is placed on the screen sheet.
As a further implementation mode, an outlet pipe of the reactor is connected with a tail gas treatment device through a rubber hose, the tail gas treatment device consists of a glass bottle and alkaline solution placed in the glass bottle, one end of an exhaust pipe is fixedly arranged in the glass bottle and is close to the bottle mouth of the glass bottle, and the other end of the exhaust pipe extends out of the glass bottle.
As a further implementation manner, a pair of flange covers is arranged at the top of the reactor, and the outlet pipe is fixedly arranged on the flange covers.
The beneficial effects of the utility model are as follows:
1) According to the utility model, the heater is respectively connected with the air source device and the steam generator, so that the contents of water vapor, air and sulfur dioxide in the mixed gas can be adjusted as required, actual industrial data are more met, the fan can ensure the mixing uniformity of the gas and improve the gas pressure at the same time, so that the actual flue gas operation working condition of the fixed bed desulfurization process is simulated, and the measured data are real and reliable.
2) The air inlet pipe is internally provided with the spoilers, so that the flow speed of the mixed gas in the air inlet pipe can be reduced, the mixed gas can be mixed for a more sufficient time, and meanwhile, the mixed gas can be mixed in an auxiliary manner to improve the mixing uniformity of the mixed gas.
3) The air inlet end and the air outlet end of the electric heater are flexibly connected, so that the vibration of equipment can be eliminated in a flexible connection mode, and the damage of the device is avoided.
4) The inside of the reactor is provided with the screen plate which can be pulled and detached, so that the dry desulfurizing agent granular material can be conveniently replaced after being used.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of the overall structure of a sulfur capacity determination system for a fixed bed dry desulfurization agent in accordance with one or more embodiments of the present utility model;
FIG. 2 is a schematic view of a partial perspective structure of a reactor according to one or more embodiments of the utility model;
in the figure: the mutual spacing or size is exaggerated for showing the positions of all parts, and the schematic drawings are used only for illustration;
1, an air source device; 2. a first flow rate measurement device; 3. a first hose; 4. a first flow regulating valve; 5. a steam generator; 6. a second hose; 7. a second flow rate measurement device; 8. a second flow regulating valve; 9. a discharge valve; 10. an air inlet pipe; 11. an electric heater; 12. a blower; 13. a third hose; 14. a first test port; 15. a screen mesh; 16. a reactor; 17. desulfurizing agent; 18. an outlet tube; 19. a second test port; 20. a fourth hose; 21. a tail gas treatment device; 22. and an exhaust pipe.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
As introduced by the background technology, the existing measuring device for various sulfur capacities has the defects that the gas composition difference between the experimental gas distribution composition and the gas composition under the actual operation condition of the fixed bed dry desulfurization process is too large; after the gas distribution is finished, forced stirring and mixing are lacked, so that the mixing uniformity of the gas distribution is not high, and larger experimental deviation is caused; the utility model provides a sulfur capacity measuring system of a fixed bed dry desulfurization agent, which is used for solving the problems that the air distribution of an experimental device depends on the pressure of a gas steel cylinder and external power is not configured, so that the air quantity for experiments is too small and the reliability of experimental results is low, and is not suitable for measuring the sulfur capacity of a granular desulfurization agent in a fixed bed dry desulfurization process.
Example 1
In an exemplary embodiment of the present utility model, as shown in fig. 1-2, a sulfur capacity measurement system of a fixed bed dry desulfurizing agent is provided, which comprises an air source device 1, a steam generator 5 and a reactor 16, wherein the air source device 1 and the steam generator 5 are arranged in parallel, and are connected with an air inlet pipe 10 of the same electric heater 11, an air outlet end of the electric heater 11 is connected with an inlet pipe of the reactor 16 sequentially through a fan 12 and a hose, and an outlet pipe of the reactor 16 is connected with an exhaust gas treatment device 21 and an exhaust pipe 22 sequentially.
Wherein the gas source device 1 is a gas steel cylinder group for storing SO 2 The gas source device 1 passes through the first hose 3 and the electric heater 11Is connected to the air inlet pipe 10 of the SO 2 The gas is fed into the electric heater 11 through the first hose 3.
The first hose 3 is provided with a first flow measuring device 2 and a first flow regulating valve 4 for respectively measuring SO in the first hose 3 2 The flow of gas is monitored and controlled to control SO in the reactor 16 2 Concentration of the gas.
The steam generator 5 is used for generating steam, and is of an existing structure, and the steam generator 5 is connected with an air inlet pipe 10 of the electric heater 11 through a second hose 6 to deliver steam into the electric heater 11 through the second hose 6.
The second hose 6 is provided with a second flow measuring device 7 and a second flow regulating valve 8 to monitor and control the flow of the water vapor in the second hose 6, respectively, and further to regulate and control the moisture content in the experimental gas in the reactor 16.
Wherein, in order to avoid SO 2 The first flow regulating valve 4 is corroded by the gas, the first flow regulating valve 4 is a plastic plug valve, the first hose 1 and the second hose 6 are rubber hoses, and the second flow regulating valve 7 is not excessively limited.
An air inlet pipe 10 is provided at an air inlet end of the electric heater 11 for receiving SO 2 Gas, steam, and intake air with received SO 2 The gas and steam are distributed to realize preliminary mixing, and the air inlet pipe 10 is made of FRP (fiber reinforced plastic) pipes so as to avoid corrosion of the mixed gas to the air inlet pipe 10.
The air inlet pipe 10 is provided with a plurality of spoilers along the axial direction thereof to reduce the flow velocity of the mixed gas in the air inlet pipe 10, so that the mixed gas has more sufficient time to be primarily mixed, and at the same time, the mixing of the mixed gas can be assisted.
The bottom of the air inlet pipe 10 is provided with a discharge port, and a discharge valve 9 is provided at the discharge port, through which residues or impurities in the air inlet pipe 10 can be discharged to the outside.
The mixed gas in the air inlet pipe 10 enters the electric heater 11, and the electric heater 11 can mix SO 2 Gas, steam toAnd heating the air and raising the temperature to a practical temperature range (80-220 ℃) for industrial application.
It will be appreciated that the electric heater 11 is of conventional construction with control buttons, an overfire protection system, etc.
In order to avoid damage of the mixed gas to the electric heater 11, a corrosion-resistant coating is provided on the inner wall of the electric heater 11 to avoid corrosion of the mixed gas to the inner wall of the electric heater 11.
Both ends (air inlet end and air outlet end) of the electric heater 11 are all provided with flexible connections, namely the air inlet end of the electric heater 11 is connected with the air inlet pipe 10 through a flexible connection pipe, the air outlet end of the electric heater 11 is connected with the fan 12 through a flexible connection pipe, and vibration of equipment can be eliminated through the flexible connection.
The fan 12 is connected with the air outlet end of the electric heater 11, and after the mixed gas in the electric heater 11 enters the fan 12, the pressure is boosted under the action of the fan 12 so as to overcome the resistance of the subsequent reactor 16, and meanwhile, the mixed gas can be assisted in the boosting process so as to enable the mixed gas to be more fully mixed.
In the embodiment, the fan 12 is a centrifugal fan structure, and the air volume is controlled to be 30-300m 3 In the range of/h, the boost pressure is controlled within the range of 1000-3000 Pa.
The fan 12 is connected with an inlet pipe at the bottom of the reactor 16 through a third hose 13, and the third hose 3 is a rubber hose, so that the corrosion of the mixed gas to the third hose 3 is avoided.
The reactor 16 is supported by a support frame, the reactor 16 is loaded with a certain amount of dry desulfurization reactant granules for reaction and sulfur capacity measurement, the diameter of the reactor 16 is in the range of 0.3-1.0m, the net cross-section wind speed is controlled in the range of 0.1-0.5m/s, the pressure drop is controlled in the range of 1000-2000Pa, and the reaction time is controlled in the range of 3-10 s.
The outside of the reactor 16 is provided with a heat-insulating measure, such as providing a heat-insulating layer (heat-insulating cotton) or the like outside the reactor 16, and the top of the reactor 16 is provided with a pair of flange covers, on which the outlet pipe 18 is fixedly provided, so as to facilitate the loading of fresh dry desulfurizing agent particulate material.
The inlet pipe at the bottom of the reactor 16 has a sufficient length, and a first test port 14 is provided at a middle position of the inlet pipe for measuring the content of each gas component in the mixed gas.
The inside of the reactor 16 is provided with a screen sheet 15 which can be pulled and detached and is used for placing a desulfurizing agent 17, as shown in fig. 2, the outer wall of the reactor 16 is fixedly provided with a clamping device for clamping and fixing the screen sheet 15 so as to facilitate the replacement of the dry desulfurizing agent particle materials after use.
The top of the reactor 16 is provided with an outlet pipe 18, and a second test port 19 is provided in the middle of the outlet pipe 18 for measuring the content of each gas component in the reacted gas.
The outlet pipe 18 at the top of the reactor 16 is connected with the tail gas treatment device 21 through a fourth hose 20, and the tail gas after the reaction can enter the tail gas treatment device 21 and be absorbed and treated by the tail gas treatment device 21.
The tail gas treatment device 21 is internally provided with an alkaline solution which can absorb SO in the tail gas discharged from the reactor 16 by a bubbling type absorption mode, namely, the fourth hose 20 is inserted into the alkaline solution 2 The gas is fully absorbed to protect the environment.
Wherein, tail gas processing apparatus 21 is the glass bottle structure, and alkaline solution is placed in the glass bottle, and fourth hose 20 inserts in the alkaline solution in the glass bottle, and fourth hose 20 is the rubber hose to avoid alkaline solution to the damage of fourth hose 20.
The exhaust gas treatment device 21 is further provided with an exhaust pipe 22, one end of the exhaust pipe 22 is fixedly arranged in the exhaust gas treatment device 21 and close to the bottle mouth of the exhaust gas treatment device 21, and the other end of the exhaust pipe 22 extends out of the exhaust gas treatment device 21 so as to be used for exhaust gas.
The exhaust pipe 22 adopts a high-level diffusing arrangement mode, namely, one end of the exhaust pipe 22 extending out of the tail gas treatment device 21 is required to be arranged at a high position so as to discharge the treated gas to the high position, and the gas discharged by the exhaust pipe 22 is prevented from being inhaled by a human body.
It should be noted that the height of the exhaust device is not limited, so long as the exhaust device can ensure that the exhaust gas is not directly inhaled by a human body.
The system can effectively control the steam content and SO in the mixed gas 2 The concentration, the mixing uniformity of the mixed gas and the pressure of the mixed gas are used for simulating the actual flue gas operation condition of the fixed bed desulfurization process, so that the measured data are real and reliable, the sulfur capacity is measured, the resistance of the dry desulfurizing agent layer can be measured, and the curve relationship between the bed resistance, the desulfurization efficiency and the sulfur capacity is obtained, so that the method can be used for the design of industrial devices.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a sulfur capacity survey system of fixed bed dry process desulfurizing agent, its characterized in that, including air supply device, steam generator and the reactor that is used for sulfur dioxide to supply, air supply device and steam generator are connected with the air inlet pipe of same electric heater through a rubber hose respectively to mix with the air in the air inlet pipe is preliminary, all are equipped with a flow measurement device and flow control valve on every rubber hose, the end of giving vent to anger of electric heater is connected with the entry pipe of fan, reactor in proper order, and the outlet pipe of reactor is connected with tail gas treatment device, blast pipe in proper order, has placed the desulfurizing agent in the reactor.
2. The sulfur capacity measurement system of a fixed bed dry desulfurizing agent according to claim 1, wherein said gas source device and said steam generator are arranged in parallel.
3. The sulfur capacity measurement system of a fixed bed dry desulfurizing agent according to claim 1, wherein the air inlet pipe is of a glass fiber reinforced plastic pipeline structure, and a plurality of spoilers are arranged in the air inlet pipe along the axial direction of the air inlet pipe.
4. The sulfur capacity measurement system of a fixed bed dry desulfurization agent according to claim 1, wherein the bottom of the air inlet pipe is provided with a discharge port, and a discharge valve is provided at the discharge port.
5. The sulfur capacity measurement system of a dry desulfurizing agent of a fixed bed according to claim 1, wherein the inner wall of the electric heater is provided with a corrosion-resistant coating, and the air inlet end and the air outlet end of the electric heater are respectively provided with a flexible connecting pipe.
6. The sulfur capacity measurement system of a fixed bed dry desulfurizing agent according to claim 1, wherein the blower is connected with an inlet pipe at the bottom of the reactor through a rubber hose.
7. The sulfur capacity measurement system of a fixed bed dry desulfurizing agent according to claim 1, wherein the reactor is supported by a supporting frame, a first test port for measuring gas components and content is arranged at an inlet pipe at the bottom of the reactor, and a second test port is arranged at an outlet pipe at the top of the reactor.
8. The sulfur capacity measurement system of a fixed bed dry desulfurizing agent according to claim 1, wherein the outside of the reactor is provided with a heat insulation layer, the inside of the reactor is provided with a screen sheet which can be pulled and detached, and the desulfurizing agent is placed on the screen sheet.
9. The sulfur capacity measurement system of a fixed bed dry desulfurizing agent according to claim 1, wherein the outlet pipe of the reactor is connected with a tail gas treatment device through a rubber hose, the tail gas treatment device consists of a glass bottle and an alkaline solution placed in the glass bottle, one end of the exhaust pipe is fixedly arranged in the glass bottle and is close to the bottle mouth of the glass bottle, and the other end of the exhaust pipe extends out of the glass bottle.
10. The sulfur capacity measurement system of a dry desulfurizing agent of a fixed bed according to claim 1, wherein the top of the reactor is provided with a pair of flange covers, and the outlet pipe is fixedly arranged on the flange covers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223049320.5U CN219456077U (en) | 2022-11-16 | 2022-11-16 | Sulfur capacity measurement system of fixed bed dry desulfurizing agent |
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| CN202223049320.5U CN219456077U (en) | 2022-11-16 | 2022-11-16 | Sulfur capacity measurement system of fixed bed dry desulfurizing agent |
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| CN202223049320.5U Active CN219456077U (en) | 2022-11-16 | 2022-11-16 | Sulfur capacity measurement system of fixed bed dry desulfurizing agent |
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