Layered porous medium regenerative chamber

Abstract

The utility model discloses a layered porous medium regenerative chamber which comprises a wall body, burner connectors are arranged on the two sides of the lower portion of the interior of the wall body, premixed gas inlets are formed in the two sides of the lower portions of the burner connectors, cement roadway walls are arranged on the lower portion of the interior of the wall body at equal intervals, and the cement roadway walls are connected with the burner connectors. Honeycomb ceramic plates are connected to the top of the cement roadway wall at equal intervals in a matched mode, stepped honeycomb holes are formed in the honeycomb ceramic plates at equal intervals, and nickel alloy hollow spiral rods are connected to the upper portions of the inner walls of the stepped honeycomb holes in a matched mode. The utility model relates to the technical field of industrial energy utilization, and solves the problems that in the prior art, when premixed gas is combusted in a combustion area formed by ceramic balls, the efficiency of heat conduction to honeycomb ceramics is low, so that the efficiency of heat energy storage and release is not high, and the premixed gas is not fully heated when flowing through the honeycomb ceramics, so that the energy consumption is low. And the heat energy utilization rate of the heat storage system is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial energy utilization technical field, concretely is a kind of layered porous medium heat storage room. BACKGROUND

[0002] Porous medium heat storage room is a kind of high-efficiency heat storage system, the large surface area and heat capacity characteristics of porous material (such as ceramic, metal foam or packed bed) are used to store and release heat energy, when working fluid (usually air or other gas) flows through porous medium, heat is transferred between fluid and solid matrix, in the heat charging stage, hot fluid heats porous medium;In the heat releasing stage, cold fluid is heated by porous medium, in the prior art, when premixed gas burns in the combustion zone formed by ceramic balls, the efficiency of heat conduction to honeycomb ceramic is low, resulting in low efficiency of heat storage and release, and the premixed gas flowing through honeycomb ceramic is not fully heated, which affects the utilization rate of heat energy of the heat storage system. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a layered porous medium heat storage room, which solves the problems of low efficiency of heat conduction to honeycomb ceramic when premixed gas burns in the combustion zone formed by ceramic balls in the prior art, low efficiency of heat storage and release, and insufficient heating of premixed gas flowing through honeycomb ceramic, which affects the utilization rate of heat energy of the heat storage system.

[0004] To achieve the above-mentioned purpose, the utility model realizes through the following technical scheme: a layered porous medium heat storage room, comprising a wall, the lower inside of the wall is provided with a burner interface on both sides, the lower inside of the wall is provided with a premixed gas inlet on both sides, the lower inside of the wall is provided with a cement tunnel wall at equal intervals, the top of the cement tunnel wall is connected with a honeycomb ceramic plate at equal intervals, the inside of the honeycomb ceramic plate is provided with a stepped honeycomb hole at equal intervals, the inner wall of the stepped honeycomb hole is connected with a nickel alloy hollow spiral rod on the upper side, the top of the honeycomb ceramic plate is embedded with a nickel alloy heat conducting rod at equal intervals, the nickel alloy heat conducting rod is arranged at intervals between the stepped honeycomb hole, the top of the honeycomb ceramic plate is provided with a ceramic partition plate at equal intervals, the side of the ceramic partition plate close to each other is provided with a ceramic grid plate, the upper and lower sides of the ceramic grid plate are provided with ceramic balls at equal intervals on the side of the ceramic partition plate close to each other, and the upper side of the ceramic ball is provided with an exhaust port.

[0005] Preferably, the two sides of the wall are provided with a detection reserved port above the ceramic balls, the two sides of the wall are provided with an armored thermocouple at equal intervals, and the top of the wall is provided with a pressure gauge on one side.

[0006] Preferably, the inner side of the wall body is fixedly connected with the porous ceramic plate at equal intervals, and the side close to each other of the wall body and the porous ceramic plate is provided with aerogel blanket, and the outer wall of the wall body is provided with a thermal insulation outer layer.

[0007] Preferably, the top of the honeycomb ceramic plate is provided with a triangular supporting rib at equal intervals, and the outer wall of the nickel alloy heat conducting rod is provided with an annular groove at equal intervals.

[0008] Preferably, the inner side of the wall body is fixedly connected with the porous ceramic plate at equal intervals, and the side close to each other of the wall body and the porous ceramic plate is provided with aerogel blanket, and the outer wall of the wall body is provided with a thermal insulation outer layer.

[0009] The layered porous medium regenerator has the following beneficial effects: through the cooperation between the wall body, the burner interface, the premixed gas inlet, the cement tunnel wall, the honeycomb ceramic plate, the stepped honeycomb hole, the nickel alloy hollow spiral rod, the nickel alloy heat conducting rod, the ceramic partition plate, the ceramic ball and the ceramic grid plate, the structure of the honeycomb ceramic plate of the porous medium regenerator is optimized, the heat generated by combustion and the heat stored by the ceramic ball can be quickly conducted to the inside of the honeycomb ceramic plate, the spiral channel is formed in the stepped honeycomb hole, the contact area and time of the premixed gas and the inner wall of the stepped honeycomb hole are increased, the premixed gas can be more fully preheated before entering the ceramic base heat storage layer, and then the combustion efficiency and the heat storage effect of the premixed gas in the ceramic base heat storage layer can be improved, so that the overall heat utilization rate and the combustion efficiency of the porous medium regenerator are improved.

[0010] Through the cooperation between the wall body, the detection reserved port, the armored thermocouple and the pressure gauge, the temperature at different positions in the regenerator and the pressure in the regenerator can be detected, the flue gas in the regenerator can be sampled and detected through the detection reserved port, the temperature distribution, the indoor pressure and the flue gas composition in the regenerator can be monitored by the regenerator control system, the storage and release process of heat energy in the regenerator is stable and reliable, and the mixing ratio and flow of the mixed gas can be dynamically adjusted according to the monitoring data of the temperature, the pressure and the flue gas composition, so that the combustion efficiency and the heat storage effect can be automatically optimized by the control system. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the utility model;

[0012] Figure 2 It is an appearance sectional view of the honeycomb ceramic plate, the stepped honeycomb hole and the nickel alloy hollow spiral rod in the utility model;

[0013] Figure 3 It is Figure 1 It is a local enlarged view of the A area in the utility model;

[0014] Figure 4 It is Figure 2 It is a local enlarged view of the B area in the utility model;

[0015] Figure 5 For Figure 2 Local enlarged view of the middle C region.

[0016] In the figure: 1, wall body; 2, burner interface; 3, premixed gas inlet; 4, cement tunnel wall; 5, honeycomb ceramic plate; 6, stepped honeycomb hole; 7, nickel alloy hollow spiral rod; 8, nickel alloy heat conduction rod; 9, ceramic partition plate; 10, ceramic ball; 11, ceramic grid plate; 12, exhaust port; 13, detection reserved port; 14, armored thermocouple; 15, pressure gauge; 16, porous ceramic plate; 17, aerogel felt; 18, heat insulation outer layer; 19, triangular support rib; 20, annular groove; 21, conical shunt plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] In the prior art, when the premixed gas is burned in the combustion zone composed of ceramic balls, the efficiency of heat conduction from the heat to the honeycomb ceramic is low, resulting in low efficiency of heat energy storage and release, and the premixed gas cannot be fully heated when flowing through the honeycomb ceramic, affecting the utilization rate of heat energy by the heat storage system.

[0019] Therefore, the present application provides a layered porous medium heat storage chamber, which is matched among a wall body, a burner interface, a premixed gas inlet, a cement tunnel wall, a honeycomb ceramic plate, a stepped honeycomb hole, a nickel alloy hollow spiral rod, a nickel alloy heat conduction rod, a ceramic partition plate, ceramic balls and a ceramic grid plate. The structure of the honeycomb ceramic plate of the porous medium heat storage chamber is optimized, so that the heat generated by combustion and the heat stored by the ceramic balls can be quickly conducted to the inside of the honeycomb ceramic plate through the nickel alloy heat conduction rod, and a spiral channel is formed in the inside of the stepped honeycomb hole, the contact area and time of the premixed gas with the inner wall of the stepped honeycomb hole are increased, so that the premixed gas can be more fully preheated before entering the ceramic-based heat storage layer, and then the combustion efficiency and heat energy storage effect of the premixed gas in the ceramic-based heat storage layer are improved, and the overall heat energy utilization rate and combustion efficiency of the porous medium heat storage chamber are improved.

[0020] Through the person skilled in the art, all electrical components in the case are connected to their adapted power supply through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the working principle of the following working principle, and the working order of each electrical component is completed. The detailed connection means is the prior art, and the working principle and process are mainly introduced below, and the electrical control is not described.

[0021] By Figures 1-5 It can be known that a layered porous medium heat storage chamber comprises a wall body 1, which is the main structure of the layered porous medium heat storage chamber and is used for supporting and containing various components in the heat storage chamber. The lower inside of the wall body 1 is provided with a burner interface 2 on both sides, the lower side of the burner interface 2 is provided with a premixed gas inlet 3 on both sides, the lower inside of the wall body 1 is provided with a cement tunnel wall 4 at equal intervals, the top of the cement tunnel wall 4 is connected with a honeycomb ceramic plate 5 at equal intervals, the inside of the honeycomb ceramic plate 5 is provided with a stepped honeycomb hole 6 at equal intervals, the inner wall of the stepped honeycomb hole 6 is connected with a nickel alloy hollow spiral rod 7 on the upper side, the top of the honeycomb ceramic plate 5 is embedded with a nickel alloy heat conducting rod 8 at equal intervals, the nickel alloy heat conducting rod 8 is arranged at intervals with the stepped honeycomb hole 6, the top of the honeycomb ceramic plate 5 is provided with a ceramic partition plate 9 at equal intervals, the side of the ceramic partition plate 9 close to each other is provided with a ceramic grid plate 11, the side of the ceramic partition plate 9 close to each other is provided with a ceramic ball 10 at equal intervals above and below the ceramic grid plate 11, and the upper side of the ceramic ball 10 is provided with an exhaust port 12.

[0022] In the implementation process, it is particularly worth pointing out that the wall 1 is the main structure of the layered porous medium regenerator, used to support and accommodate various components in the regenerator. Through the cooperation between the wall 1, the burner interface 2, the premixed gas inlet 3 and the cement roadway wall 4, the bottom of the regenerator is a premixed gas input chamber, which is divided into two gas inlets by the cement roadway wall 4. Each gas inlet is provided with a burner interface 2 and two premixed gas inlets 3 on both sides. The burner interface 2 is responsible for preheating in the preheating start-up stage. The premixed gas inlet 3 introduces low-concentration gas mixture into the regenerator after the preheating start-up stage, realizes uniform gas supply in the stable combustion stage, and the premixed gas inlet 3 introduces low-concentration gas mixture into the regenerator after the preheating start-up stage, realizes uniform gas supply in the stable combustion stage. Through the cooperation between the wall 1, the cement roadway wall 4, the honeycomb ceramic plate 5 and the stepped honeycomb hole 6, the honeycomb ceramic plate 5 is supported and fixed at the top of the cement roadway wall 4 to form a honeycomb ceramic layer of the regenerator, and the premixed gas input chamber is connected with the chamber above the honeycomb ceramic layer through the internal stepped honeycomb hole 6. Under the action of negative pressure, the premixed gas flows from the premixed gas input chamber to the chamber above the honeycomb ceramic layer. Through the cooperation between the wall 1, the honeycomb ceramic plate 5, the ceramic partition plate 9, the ceramic ball 10 and the ceramic grid plate 11, a ceramic-based heat storage layer with multi-layer structure is formed at the top of the honeycomb ceramic plate 5. Among them, the ceramic ball 10 close to the honeycomb ceramic plate 5 has a larger diameter, forming a stacked ceramic layer. The ceramic grid plate 11 is laid on the top of the stacked ceramic layer to form a ceramic isolation layer, which supports and isolates the ceramic ball 10 with a smaller diameter. The ceramic ball 10 with a smaller diameter is stacked on the top of the ceramic foam layer to form a small ball ceramic layer. The multi-layer structure of the ceramic-based heat storage layer bears the functions of low-concentration gas preheating and oxidation heat release, and separates the ceramic-based heat storage layer into multiple areas through the ceramic partition plate 9 to improve the stability of the overall structure. Through the cooperation between the wall 1, the burner interface 2, the premixed gas inlet 3, the cement roadway wall 4, the honeycomb ceramic plate 5, the stepped honeycomb hole 6, the ceramic partition plate 9, the ceramic ball 10, the ceramic grid plate 11 and the exhaust port 12, in the stable combustion stage, the premixed gas flows from the bottom of the honeycomb ceramic layer to the ceramic-based heat storage layer through the stepped honeycomb hole 6 under the action of negative pressure. The low-concentration gas premixed gas burns stably and sufficiently in the ceramic-based heat storage layer, and the combustion flame acts on the ceramic ball 10 stacked in the ceramic-based heat storage layer, so that the ceramic ball 10 is fully heated and stores heat. At the same time, the high-temperature flue gas continues to flow upward into the empty hearth in the upper layer of the regenerator and is discharged from the exhaust port 12. The high-temperature flue gas is output and utilized. The porous medium regenerator feedbacks the heat generated by combustion to the unburned gas based on the super-enthalpy effect, maintains stable combustion at very low oxygen concentration, oxidizes low-concentration gas to non-polluting water and carbon dioxide, inhibits the generation of NOx and other polluting gases, and realizes the stable combustion of low-concentration gas. Through the cooperation between the honeycomb ceramic plate 5, the stepped honeycomb hole 6, the nickel alloy heat conducting rod 8, the ceramic partition plate 9, the ceramic ball 10 and the ceramic grid plate 11, when the premixed gas burns in the ceramic-based heat storage layer,The heat generated by combustion is conducted to the ceramic balls 10, so that the ceramic balls 10 are heated sufficiently and store heat, and the heat is also conducted to the honeycomb ceramic plate 5, and through the nickel alloy heat-conducting rods 8 embedded in the top of the honeycomb ceramic plate 5 and inserted into the inside of the ceramic heat storage layer, the heat generated by combustion and the heat stored by the ceramic balls 10 can be quickly conducted to the inside of the honeycomb ceramic plate 5 through the nickel alloy heat-conducting rods 8, so that the heat conduction efficiency is improved, and through the cooperation between the honeycomb ceramic plate 5, the stepped honeycomb holes 6 and the nickel alloy hollow spiral rods 7, the nickel alloy hollow spiral rods 7 form spiral channels in the inside of the stepped honeycomb holes 6, and the special spiral structure can increase the contact area and time of the premixed gas with the inner wall of the stepped honeycomb holes 6 when the premixed gas passes through the stepped honeycomb holes 6, so that the heat exchange efficiency of the premixed gas in the stepped honeycomb holes 6 is improved, and the premixed gas can be preheated more sufficiently before entering the ceramic-based heat storage layer, and through the cooperation between the wall 1, the burner interface 2, the premixed gas inlet 3, the cement roadway wall 4, the honeycomb ceramic plate 5, the stepped honeycomb holes 6, the nickel alloy hollow spiral rods 7, the nickel alloy heat-conducting rods 8, the ceramic partition plate 9, the ceramic balls 10 and the ceramic grid plate 11, the structure of the honeycomb ceramic plate 5 of the porous medium heat storage chamber is optimized, so that the heat generated by combustion and the heat stored by the ceramic balls 10 can be quickly conducted to the inside of the honeycomb ceramic plate 5 through the nickel alloy heat-conducting rods 8, and the spiral channels are formed in the inside of the stepped honeycomb holes 6, the contact area and time of the premixed gas with the inner wall of the stepped honeycomb holes 6 are increased, so that the premixed gas can be preheated more sufficiently before entering the ceramic-based heat storage layer, and the combustion efficiency and heat storage effect of the premixed gas in the ceramic-based heat storage layer are improved, and the overall heat utilization rate and combustion efficiency of the porous medium heat storage chamber are improved.

[0023] Further, detection reserved openings 13 are arranged above the ceramic balls 10 on both sides of the wall 1, and armored thermocouples 14 are installed equidistantly on both sides of the wall 1, and a pressure gauge 15 is installed on one side of the top of the wall 1.

[0024] In the specific implementation process, it is particularly worth pointing out that through the cooperation between the wall 1, the detection reserved openings 13, the armored thermocouples 14 and the pressure gauge 15, the temperature at different positions in the heat storage chamber and the pressure in the heat storage chamber are detected, so that the control system can monitor the temperature distribution and overall pressure state of each part in the heat storage chamber in real time, to ensure the safety and efficiency of the heat storage process, and the flue gas in the heat storage chamber is sampled and detected through the detection reserved openings 13, so that the control system of the heat storage chamber can monitor the composition of the flue gas, to ensure the stability and reliability of the heat storage and release process of heat energy in the heat storage chamber, and the mixing ratio and flow of the mixed gas can be dynamically adjusted according to the monitoring data of the temperature, pressure and flue gas composition, to optimize the combustion efficiency and heat storage effect, and improve the heat utilization rate and combustion efficiency, wherein the specific models of the armored thermocouples 14 and the pressure gauge 15 are not limited, as long as the use requirements are met.

[0025] Further, the inner side of the wall body 1 is fixedly connected with the porous ceramic plate 16, and the wall body 1 and the porous ceramic plate 16 are provided with the aerogel blanket 17 on the side close to each other, and the outer wall of the wall body 1 is provided with the thermal insulation outer layer 18;

[0026] In the specific implementation process, it is worth pointing out that, through the cooperation between the wall body 1, the porous ceramic plate 16, the aerogel blanket 17 and the thermal insulation outer layer 18, by arranging the porous ceramic plate 16 and the aerogel blanket 17 on the inner side of the wall body 1 of the heat storage chamber, the heat conduction to the wall body 1 is reduced, the heat insulation performance of the heat storage chamber is effectively improved, the heat loss is reduced, and the heat energy utilization rate is improved;

[0027] Further, the top of the honeycomb ceramic plate 5 is provided with the triangular supporting rib 19 at equal intervals, and the outer wall of the nickel alloy heat conduction rod 8 is provided with the annular groove 20 at equal intervals;

[0028] In the specific implementation process, it is worth pointing out that, through the cooperation between the honeycomb ceramic plate 5 and the triangular supporting rib 19, the heating area of the top of the honeycomb ceramic plate 5 is increased, the efficiency of heat energy conduction to the honeycomb ceramic plate 5 is improved, through the cooperation between the nickel alloy heat conduction rod 8 and the annular groove 20, the surface area of the nickel alloy heat conduction rod 8 is increased, the heat conduction efficiency of the nickel alloy heat conduction rod 8 is improved, and the heat energy storage and release are more efficient;

[0029] Further, the inner side of the wall body 1 is fixedly connected with the porous ceramic plate 16, and the wall body 1 and the porous ceramic plate 16 are provided with the aerogel blanket 17 on the side close to each other, and the outer wall of the wall body 1 is provided with the thermal insulation outer layer 18;

[0030] In the specific implementation process, it is worth pointing out that, through the cooperation between the honeycomb ceramic plate 5 and the triangular supporting rib 19, the heating area of the top of the honeycomb ceramic plate 5 is increased, the efficiency of heat energy conduction to the honeycomb ceramic plate 5 is improved, through the cooperation between the nickel alloy heat conduction rod 8 and the annular groove 20, the surface area of the nickel alloy heat conduction rod 8 is increased, the heat conduction efficiency of the nickel alloy heat conduction rod 8 is improved, and the heat energy storage and release are more efficient;

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A regenerator of layered porous media comprising a wall (1), characterized in that: The wall (1) is provided with a burner interface (2) on both sides of the lower part of the interior, the lower part of the burner interface (2) is provided with a premixed gas inlet (3) on both sides, the lower part of the interior of the wall (1) is provided with a cement tunnel wall (4) at equal intervals, the top of the cement tunnel wall (4) is connected with a honeycomb ceramic plate (5) at equal intervals, the interior of the honeycomb ceramic plate (5) is provided with a stepped honeycomb hole (6) at equal intervals, the inner wall of the stepped honeycomb hole (6) is connected with a nickel alloy hollow spiral rod (7) on the upper part, the top of the honeycomb ceramic plate (5) is embedded with a nickel alloy heat conducting rod (8) at equal intervals, the nickel alloy heat conducting rod (8) is arranged at intervals between the stepped honeycomb hole (6), the top of the honeycomb ceramic plate (5) is provided with a ceramic partition plate (9) at equal intervals, the side of the ceramic partition plate (9) close to each other is provided with a ceramic grid plate (11), the upper and lower sides of the ceramic partition plate (9) close to each other are provided with ceramic balls (10) at equal intervals, the upper part of the ceramic ball (10) is provided with an exhaust port (12).

2. The regenerator of claim 1, wherein: The two sides of the wall (1) are provided with a detection reserved port (13) above the ceramic ball (10), the two sides of the wall (1) are provided with an armored thermocouple (14) at equal intervals, and the top side of the wall (1) is provided with a pressure gauge (15).

3. The regenerator of claim 1 wherein: The inner side of the wall (1) is fixedly connected with a porous ceramic plate (16) at equal intervals, the side close to each other of the wall (1) and the porous ceramic plate (16) is provided with an aerogel blanket (17), and the outer wall of the wall (1) is provided with a heat insulation outer layer (18).

4. The regenerator of claim 1 wherein: The top of the honeycomb ceramic plate (5) is provided with a triangular supporting rib (19) at equal intervals, and the outer wall of the nickel alloy heat conducting rod (8) is provided with an annular groove (20) at equal intervals.

5. The regenerator of claim 1 wherein: The inner side of the wall (1) is fixedly connected with a conical shunt plate (21) at equal intervals on the side close to each other of the burner interface (2) and the honeycomb ceramic plate (5).

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