Regenerative thermal oxidizer (RTO) heat energy recycling equipment for heat accumulating type incinerator

Abstract

The invention discloses regenerative thermal oxidizer (RTO) heat energy recycling equipment for a heat accumulating type incinerator, and particularly relates to the technical field of organic waste gas treatment.The regenerative thermal oxidizer (RTO) heat energy recycling equipment for the heat accumulating type incinerator comprises a heat exchange chamber, a waste gas heat exchange pipe is arranged in the heat exchange chamber, a pressure relief assembly is installed at the top of the heat exchange chamber, and a water inlet pipe is installed at the bottom end of the side face of the heat exchange chamber; the other side of the heat exchange chamber is provided with a water outlet pipe; an air outlet of the pressure relief assembly is connected with a vaporization recovery pipe, and the vaporization recovery pipe penetrates out of the heat exchange chamber and is connected with a water inlet pipe; the parts, located in the heat exchange chamber, of the vaporization recovery pipe and the waste gas heat exchange pipe have the folding function, and an overheating heat exchange part with the inwards-sunken cross section is formed at the folding position of the vaporization recovery pipe and the waste gas heat exchange pipe. A thermal expansion device is mounted at an opening of the overheating heat exchange part and has an extension state and a retraction state; and the opening of the overheating heat exchange part is connected with a first spring capable of enabling the telescopic device to retract. And through the pressure relief assembly and the first corrugated pipe, the heat energy utilization rate can be increased.

Description

Technical Field

[0001] The present invention relates to the technical field of organic waste gas treatment, in particular to a regenerative thermal incinerator (RTO) heat energy recovery device. Background Art

[0002] The RTO regenerative combustion furnace is used to treat waste gas containing organic volatile substances. It burns the organic substances in the waste gas at high temperature and converts them into carbon dioxide and water vapor, thereby purifying the waste gas. The RTO regenerative combustion furnace recycles heat energy through the design of a thermal energy storage device, thereby achieving high thermal efficiency and low energy consumption waste gas treatment capabilities.

[0003] The invention patent application with publication number "CN117404671A" discloses an RTO thermal storage incinerator capable of recovering and storing waste heat and a method for using the same. The RTO thermal storage incinerator capable of recovering and storing waste heat comprises a furnace body, a filter chamber and a heat exchange chamber; a uniform purge mechanism is installed in the furnace body, a filter mechanism is installed in the filter chamber, a waste heat recovery mechanism is installed in the heat exchange chamber, a first connecting pipe is fixedly installed between the furnace body and the filter chamber, a second connecting pipe is fixedly installed between the furnace body and the heat exchange chamber, and a three-way valve is provided on the second connecting pipe; the filter mechanism comprises a water filter assembly and a water vapor removal assembly, both of which are installed in the filter chamber, an air blowing device is fixedly installed on the uniform purge mechanism, the waste heat recovery mechanism comprises a waste heat recovery assembly and an adjustable pressure relief assembly, the waste heat recovery assembly is installed in the heat exchange chamber, and the adjustable pressure relief assembly is installed on the top of the heat exchange chamber;

[0004] It assists the heat exchange chamber in pressure relief through an adjustable pressure relief component to avoid the risk of excessive pressure in the heat exchange chamber. However, the vaporized heat exchange medium directly discharged leads to heat loss, affecting the recovery rate of its heat energy. In addition, its separately provided electric-driven turbulence device also increases the energy consumption of its heat recovery. For this reason, we propose a heat recovery device and method for a thermal storage incinerator RTO to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a regenerative thermal incinerator (RTO) heat energy recovery device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a regenerative thermal incinerator (RTO) heat energy recovery device, comprising a heat exchange chamber, an exhaust gas heat exchange pipe being provided inside the heat exchange chamber, a pressure relief assembly being installed on the top of the heat exchange chamber, a water inlet pipe being installed on the bottom end of a side of the heat exchange chamber, and a water outlet pipe being installed on the top end of the other side of the heat exchange chamber;

[0007] The gas outlet of the pressure relief assembly is connected to a vaporization recovery pipe, which passes through the interior of the heat exchange chamber and is connected to the water inlet pipe;

[0008] The vaporization recovery pipe and the exhaust gas heat exchange pipe are located inside the heat exchange chamber and have a folding function, and the folded portion forms a superheat heat exchange portion with an inwardly concave cross section;

[0009] A thermally expandable telescopic device is installed at the opening of the superheat heat exchange portion, and the telescopic device has an extended state and a retracted state;

[0010] When the telescopic device is in the extended state, it can be connected with the heat exchange chamber to allow the liquid in the heat exchange chamber to enter the telescopic device;

[0011] When the telescopic device is in the retracted state, the liquid in the telescopic device is isolated from the heat exchange chamber;

[0012] The opening of the overheat heat exchange portion is connected to a first spring which can return the telescopic device to a retracted state.

[0013] Preferably, the exhaust gas heat exchange pipe includes an exhaust gas outlet pipe, a second corrugated pipe, and an exhaust gas inlet pipe;

[0014] The exhaust gas outlet pipe is installed at the bottom end of the side of the heat exchange chamber, the exhaust gas inlet pipe is installed at the top of the heat exchange chamber, and the second corrugated pipe is inside the heat exchange chamber;

[0015] The exhaust gas outlet pipe and the exhaust gas inlet pipe extend into the interior of the heat exchange chamber and are divided into two second corrugated pipes. The second corrugated pipes are spiral and arranged inside and outside.

[0016] Preferably, the vaporization recovery pipe includes a first bellows and a connecting valve pipe;

[0017] The connecting valve pipe is installed on the top of the heat exchange chamber. The upper and lower ends of the first corrugated pipe pass through the interior of the heat exchange chamber and extend out to be connected with the connecting valve pipe and the water inlet pipe respectively.

[0018] Preferably, the telescopic device includes a heat-conducting pipe sleeve, a heat-conducting piston tube, and an opening and closing assembly;

[0019] The interior of the heat-conducting sleeve is hollow, and heat-conducting piston tubes are slidably connected to both ends of the heat-conducting sleeve, and the end of the heat-conducting piston tube outside the heat-conducting sleeve is connected to the inner wall of the opening of the superheating heat exchange part;

[0020] The middle section of the heat-conducting pipe sleeve is provided with a plurality of solid-steam exchange ports connected to the interior thereof;

[0021] The opening and closing component is movably connected to the inner wall of the heat-conducting pipe sleeve and extends from the end of the heat-conducting pipe sleeve. The opening and closing component can close the solid-steam exchange port, and the end of the heat-conducting piston tube in the heat-conducting pipe sleeve can drive the opening and closing component to move when it moves outward.

[0022] Preferably, a chute is provided on the inner wall of the heat-conducting pipe sleeve at the solid-steam exchange port, and the solid-steam exchange port passes through the middle of the chute and is communicated with the inner wall of the heat-conducting pipe sleeve.

[0023] Preferably, the heat-conducting piston tube includes a heat-conducting plug rod and a heat-conducting plug head;

[0024] The end of the heat-conducting plug rod extends into the interior of the heat-conducting pipe sleeve and is installed with a heat-conducting plug head. The diameter of the heat-conducting plug head is adapted to the inner diameter of the heat-conducting pipe sleeve, and the diameter of the heat-conducting plug rod is smaller than that of the heat-conducting plug head.

[0025] Preferably, the opening and closing assembly includes an outer pull ring, a pulling rope, a second spring, and an opening and closing sealing door;

[0026] The outer pull ring is located at the end of the heat-conducting sleeve and contacts the end of the heat-conducting sleeve, and the inner diameter of the outer pull ring is adapted to the heat-conducting plug rod;

[0027] The pulling rope is installed on the inner side of the outer pull ring and extends into the slide groove from the inner wall of the heat conducting pipe sleeve;

[0028] The opening and closing sealing door is slidably connected in the slide groove, and a connecting groove that can overlap with the solid-steam exchange port is opened through the opening and closing sealing door, and the length of the connecting groove is greater than the diameter of the solid-steam exchange port;

[0029] The end of the pulling rope extending into the chute is connected to the communicating slot, and a second spring is installed on the connecting surface of the communicating slot and the pulling rope, and the end of the second spring is connected to the inner wall of the chute.

[0030] Preferably, the pressure relief assembly includes an opening and closing valve plate, an opening and closing valve stem, and a third spring;

[0031] The first bellows is connected to the connecting valve pipe in a downwardly inclined shape, and the bottom end of the connecting valve pipe is connected to the interior of the heat exchange chamber;

[0032] The bottom end of the opening and closing valve plate is in a tapered structure that gradually becomes larger upward, and the top of the opening and closing valve plate is in an inclined shape that gradually approaches the first bellows downward. The opening and closing valve plate is vertically slidably connected to the connecting valve pipe.

[0033] An opening and closing valve stem is installed in the middle of the top of the opening and closing valve plate, and the top end of the opening and closing valve stem extends from the top of the connecting valve pipe;

[0034] A third spring is sleeved on the outer periphery of the opening and closing valve stem, and the upper and lower ends of the third spring are respectively connected to the fixed portion in the valve pipe and the top of the opening and closing valve plate.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. The regenerative incinerator RTO heat energy recovery equipment, through the setting of the superheat heat exchange part and the setting of the telescopic device, can make the superheat heat exchange part extend and retract, and then can turbulent the heat exchange value inside the heat exchange chamber and the exhaust gas, avoiding the need to drive external components, thereby saving energy while achieving the turbulence effect, thereby making the heat exchange effect better.

[0037] 2. The RTO heat energy recovery equipment of the regenerative incinerator is connected to the water inlet pipe through the setting of the pressure relief component and the first bellows, so that the vaporized heat exchange medium with pressure relief can first pass through the interior of the heat exchange chamber for heat exchange, and the final condensed liquid can flow into the water inlet pipe again, which can improve the conversion efficiency of heat energy and the utilization rate of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 It is a schematic diagram of the structure of the present invention;

[0040] Figure 2 This is a structural diagram of a cross-sectional view of the first bellows connection in the present invention;

[0041] Figure 3 Schematic diagram of the structure of the exhaust gas heat exchange tube in the present invention;

[0042] Figure 4 This is a schematic structural diagram of a cross-sectional view of a bellows connection in the present invention;

[0043] Figure 5 It is a structural schematic diagram of the telescopic device in the present invention;

[0044] Figure 6 It is a schematic structural diagram of a cross-section of the telescopic device in the present invention;

[0045] Figure 7 This is a schematic structural diagram of the connection between the heat-conducting plug and the opening and closing assembly in the present invention;

[0046] Figure 8 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0047] Figure 9 For the present invention Figure 4 Schematic diagram of the structure at B in the middle;

[0048] Figure 10 For the present invention Figure 6 Schematic diagram of the structure at C in the middle;

[0049] Figure 11 For the present invention Figure 7 Schematic diagram of the structure at point D in the middle.

[0050] In the figure: 1. Heat exchange chamber; 2. Water inlet pipe; 3. Water outlet pipe; 4. Vaporization recovery pipe; 401. First bellows; 402. Connecting valve pipe; 5. Exhaust gas heat exchange pipe; 501. Exhaust gas outlet pipe; 502. Second bellows; 503. Exhaust gas inlet pipe; 601. Heat conduction pipe sleeve; 602. Solid-steam exchange port; 603. Heat conduction piston pipe; 6031. Heat conduction plug rod; 6032. Heat conduction plug head; 604. Opening and closing assembly; 6041. External pull ring; 6042. Pull rope; 6043. Second spring; 6044. Opening and closing sealing door; 6045. Connecting slot; 605. First spring; 606. Superheat heat exchange part; 701. Opening and closing valve plate; 702. Opening and closing valve stem; 703. Third spring. DETAILED DESCRIPTION

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] On the one hand, such as Figure 1-4 and Figure 8 As shown, the present invention provides a regenerative incinerator (RTO) heat energy recovery device, comprising a heat exchange chamber 1, an exhaust gas heat exchange pipe 5 is provided inside the heat exchange chamber 1, a pressure relief assembly is installed on the top of the heat exchange chamber 1, a water inlet pipe 2 is installed at the bottom end of the side of the heat exchange chamber 1, and a water outlet pipe 3 is installed at the top end of the other side of the heat exchange chamber 1;

[0053] The gas outlet of the pressure relief assembly is connected to a vaporization recovery pipe 4, which passes through the interior of the heat exchange chamber 1 and is connected to the water inlet pipe 2;

[0054] The vaporization recovery pipe 4 and the exhaust gas heat exchange pipe 5 are located inside the heat exchange chamber 1 and have a folding function, and the folded portion forms a superheat heat exchange portion 606 with an inwardly concave cross section;

[0055] A thermally expandable telescopic device is installed at the opening of the superheat exchange portion 606, and the telescopic device has an extended state and a retracted state;

[0056] When the telescopic device is in the extended state, it can communicate with the heat exchange chamber 1 so that the liquid in the heat exchange chamber 1 can enter it;

[0057] When the telescopic device is in the retracted state, the liquid in the telescopic device is isolated from the heat exchange chamber 1;

[0058] The opening of the overheat exchange portion 606 is connected to a first spring 605 that can return the telescopic device to a retracted state.

[0059] It should be noted that the vaporization recovery pipe 4 and the exhaust gas heat exchange pipe 5 are located in the interior of the heat exchange chamber 1 and are formed to be expandable. The expansion can increase the diameter of the pipe that can flow through the vaporization recovery pipe 4 and the exhaust gas heat exchange pipe 5. When they are retracted, the diameter of the pipe that can flow through the vaporization recovery pipe 4 and the exhaust gas heat exchange pipe 5 becomes locally smaller, and the superheat exchange portion 606 is in a concave and folded form, which can increase the contact surface with the heat exchange medium inside the heat exchange chamber 1, thereby improving the heat exchange efficiency. When retracted, the superheat exchange portion 606 is concave inward, causing the concave portion formed by the superheat exchange portion 606 to produce a heat gathering effect, and when the superheat exchange portion 606 is concave inward, the exhaust gas passing through it is intercepted, which can increase the contact time with the superheat exchange portion 606, thereby forming a local overheating effect at the concave portion of the superheat exchange portion 606, so as to achieve the effect of limited heating of the telescopic device, and the heat exchange medium inside the telescopic device is heated. After vaporization, the superheated heat exchange part 606 can be pushed to extend. During the extension process, the heat exchange medium inside the heat exchange chamber 1 at the superheated heat exchange part 606 can be pushed, so that the superheated heat exchange medium at this time can exchange flow with the heat exchange medium with lower temperature in the rest of the part, and the high-temperature heat exchange medium around the vaporization recovery pipe 4 and the exhaust gas heat exchange pipe 5 can be automatically replaced, thereby accelerating the heat exchange speed, and the replaced heat exchange medium can enter the telescopic device, and the vaporized heat exchange medium in the telescopic device is discharged to perform a program of expansion and contraction. Under the pulling action of the first spring 605, the superheated heat exchange part 606 can return to its original state again, and the cycle is repeated. In this process, due to the transformation at the superheated heat exchange part 606, the airflow inside the vaporization recovery pipe 4 and the exhaust gas heat exchange pipe 5 can be disturbed, effectively avoiding the straight-through circulation of the airflow, thereby making the heat exchange effect better.

[0060] On the other hand, Figure 1-4 and Figure 8 As shown, the exhaust gas heat exchange pipe 5 includes an exhaust gas outlet pipe 501, a second corrugated pipe 502, and an exhaust gas inlet pipe 503;

[0061] The exhaust gas outlet pipe 501 is installed at the bottom end of the side of the heat exchange chamber 1, the exhaust gas inlet pipe 503 is installed at the top of the heat exchange chamber 1, and the second corrugated pipe 502 is inside the heat exchange chamber 1;

[0062] The exhaust gas outlet pipe 501 and the exhaust gas inlet pipe 503 extend into the interior of the heat exchange chamber 1 and are divided into two second corrugated pipes 502. The second corrugated pipes 502 are spiral and arranged inside and outside.

[0063] Furthermore, the vaporization recovery pipe 4 includes a first bellows 401 and a connecting valve pipe 402;

[0064] The connecting valve pipe 402 is installed on the top of the heat exchange chamber 1 , and the upper and lower ends of the first corrugated pipe 401 pass through the interior of the heat exchange chamber 1 and extend out to be connected to the connecting valve pipe 402 and the water inlet pipe 2 respectively.

[0065] It should be noted that, through the spiral design, the extension length of the second bellows 502 inside the heat exchange chamber 1 can be increased, thereby causing the exhaust gas to stay inside the heat exchange chamber 1 for a longer time, thereby improving the effect of exhaust gas heat energy recovery, and adopting a double-layer design, so that the heat exchange medium at the superheat heat exchange portion 606 can exchange when flowing, thereby making the disturbance of the liquid inside the heat exchange chamber 1 more chaotic, thereby improving the flow effect of the heat exchange medium, thereby making the heat exchange of the heat exchange medium more uniform, and making the heat exchange more efficient, and the exhaust gas enters the second bellows 502 through the exhaust gas outlet pipe 501, and then is discharged from the exhaust gas inlet pipe 503, and heat exchange is carried out inside the heat exchange chamber 1 when passing through the second bellows 502;

[0066] The heat exchange medium enters the interior of the heat exchange chamber 1 through the water inlet pipe 2 and is discharged from the water outlet pipe 3. The water outlet pipe 3 and the exhaust gas inlet pipe 503 are located at the top of the heat exchange chamber 1, and the exhaust gas outlet pipe 501 and the water inlet pipe 2 are located at the bottom of the heat exchange chamber 1. Therefore, the direction of flue gas flow is opposite to the direction of heat exchange medium flow, so as to produce a convection effect, thereby achieving a better purification effect of the exhaust gas.

[0067] In addition, such as Figure 1-11 As shown, the telescopic device includes a heat-conducting pipe sleeve 601, a heat-conducting piston tube 603, and an opening and closing component 604;

[0068] The interior of the heat-conducting sleeve 601 is hollow, and heat-conducting piston tubes 603 are slidably connected to both ends of the heat-conducting sleeve 601. The end of the heat-conducting piston tube 603 outside the heat-conducting sleeve 601 is connected to the inner wall of the opening of the superheating heat exchange part 606.

[0069] The middle section of the heat conducting pipe sleeve 601 is provided with a plurality of solid-steam exchange ports 602 communicating with the interior thereof;

[0070] The opening and closing component 604 is movably connected to the inner wall of the heat-conducting pipe sleeve 601 and extends from the end of the heat-conducting pipe sleeve 601. The opening and closing component 604 can close the solid-gas exchange port 602. The end of the heat-conducting piston tube 603 inside the heat-conducting pipe sleeve 601 can drive the opening and closing component 604 to move when it moves outward.

[0071] It should be noted that the heat-conducting piston tube 603 can slide relative to the heat-conducting pipe sleeve 601, and the heat exchange medium stored in the heat-conducting pipe sleeve 601 is between the heat-conducting piston tubes 603. Through the expansion and contraction of the heat-conducting piston tube 603, a pushing effect can be generated on the superheat heat exchange part 606. The solid-steam exchange port 602 can be connected with the heat exchange medium in the heat exchange chamber 1, so that the heat exchange medium in the heat-conducting pipe sleeve 601 can be replaced, thereby achieving a cyclic expansion and contraction effect.

[0072] Furthermore, a sliding groove is provided on the inner wall of the heat-conducting pipe sleeve 601 at the solid-steam exchange port 602 , and the solid-steam exchange port 602 passes through the middle of the sliding groove and is communicated with the inner wall of the heat-conducting pipe sleeve 601 .

[0073] Furthermore, the heat-conducting piston tube 603 includes a heat-conducting plug rod 6031 and a heat-conducting plug head 6032;

[0074] The end of the heat-conducting plug rod 6031 extends into the interior of the heat-conducting pipe sleeve 601 and is installed with a heat-conducting plug head 6032 . The diameter of the heat-conducting plug head 6032 matches the inner diameter of the heat-conducting pipe sleeve 601 , and the diameter of the heat-conducting plug rod 6031 is smaller than that of the heat-conducting plug head 6032 .

[0075] Furthermore, the opening and closing assembly 604 includes an outer pull ring 6041, a pulling rope 6042, a second spring 6043, and an opening and closing sealing door 6044;

[0076] The outer pull ring 6041 is located at the end of the heat-conducting sleeve 601 and contacts the end of the heat-conducting sleeve 601. The inner diameter of the outer pull ring 6041 is adapted to the heat-conducting plug rod 6031.

[0077] The pulling rope 6042 is installed on the inner side of the outer pull ring 6041 and extends from the inner wall of the heat conducting pipe sleeve 601 into the sliding groove;

[0078] The opening and closing sealing door 6044 is slidably connected in the slide groove, and a connecting groove 6045 is formed on the opening and closing sealing door 6044 so as to overlap with the solid-steam exchange port 602. The length of the connecting groove 6045 is greater than the diameter of the solid-steam exchange port 602.

[0079] The end of the pulling rope 6042 extending into the slide groove is connected to the connecting groove 6045, and a second spring 6043 is installed on the connecting surface of the connecting groove 6045 and the pulling rope 6042, and the end of the second spring 6043 is connected to the inner wall of the slide groove.

[0080] It should be noted that when the heat-conducting plug 6032 moves outward, it can contact the outer pull ring 6041, so that the heat-conducting plug 6032 can drive the outer pull ring 6041 to move, and the opening and closing sealing door 6044 can move, so that the connecting groove 6045 can coincide with the solid-steam exchange port 602, so that the heat exchange medium in the heat exchange chamber 1 can enter the interior of the heat-conducting pipe sleeve 601, and in the process of the outer pull ring 6041 moving outward, the solid-steam exchange port 602 can always coincide with the heat-conducting plug 6032 and open, so that the heat exchange medium can continuously enter the interior of the heat-conducting pipe sleeve 601, and when the heat-conducting plug 6032 retracts and squeezes, the excess heat exchange medium can be squeezed out, so that the heat exchange medium replaced in the heat-conducting pipe sleeve 601 always remains quantitative, thereby ensuring that the heat exchange medium inside it can be smoothly vaporized.

[0081] Specifically, the pressure relief assembly includes an opening and closing valve plate 701, an opening and closing valve stem 702, and a third spring 703;

[0082] The first bellows 401 is connected to the connecting valve pipe 402 in a downwardly inclined shape, and the bottom end of the connecting valve pipe 402 is connected to the interior of the heat exchange chamber 1;

[0083] The bottom end of the opening and closing valve plate 701 is in a tapered structure that gradually expands upward, and the top of the opening and closing valve plate 701 is in an inclined shape that gradually approaches the first bellows 401 downward. The opening and closing valve plate 701 is vertically slidably connected to the connecting valve pipe 402.

[0084] An opening and closing valve stem 702 is installed in the middle of the top of the opening and closing valve plate 701, and the top end of the opening and closing valve stem 702 extends from the top of the connecting valve pipe 402;

[0085] A third spring 703 is sleeved on the outer periphery of the opening and closing valve stem 702 , and the upper and lower ends of the third spring 703 are respectively connected to the inner fixed portion of the connecting valve tube 402 and the top of the opening and closing valve plate 701 .

[0086] It should be noted that when the air pressure in the heat exchange chamber 1 rises, the opening and closing valve plate 701 rises and opens, allowing the vaporized heat exchange medium to enter the connecting valve tube 402 and enter the first bellows 401. Through the design of the top of the opening and closing valve plate 701, when the opening and closing valve plate 701 moves upward and opens, the liquid heat exchange medium that may be retained on the top of the opening and closing valve plate 701 can enter the first bellows 401 under its inclined guidance, and under the action of the rebound of the third spring 703, the opening and closing valve plate 701 can close the heat exchange chamber 1.

[0087] In summary, when the regenerative incinerator RTO heat energy recovery device is in use, the exhaust gas exhaust outlet pipe 501 enters the second corrugated pipe 502 and then is discharged from the exhaust gas inlet pipe 503. When passing through the second corrugated pipe 502, heat exchange is carried out inside the heat exchange chamber 1.

[0088] The heat exchange medium enters the heat exchange chamber 1 through the water inlet pipe 2 and is discharged through the water outlet pipe 3. The water outlet pipe 3 and the exhaust gas inlet pipe 503 are located at the top of the heat exchange chamber 1, while the exhaust gas outlet pipe 501 and the water inlet pipe 2 are located at the bottom of the heat exchange chamber 1. Therefore, the direction of flue gas flow is opposite to the direction of heat exchange medium flow, thereby generating a convection effect, thereby achieving a better exhaust gas purification effect.

[0089] When the exhaust gas passes through the second bellows 502, it first enters the high-temperature area around the second bellows 502. Therefore, the heat exchange medium in the heat pipe sleeve 601 can be heated and vaporized, which then pushes the heat plug 6032 to move. The heat plug rod 6031 can push the superheat exchange part 606, causing the superheat exchange part 606 to open, expanding the exhaust gas flow area of ​​the superheat exchange part 606 and pushing out the high-temperature cooling medium in the superheat exchange part 606.

[0090] When the heat-conducting plug 6032 contacts the outer pull ring 6041 and pushes the outer pull ring 6041 to move, the outer pull ring 6041 can drive the pulling rope 6042 to extend outward, thereby causing the opening and closing sealing door 6044 to move, so that the connecting groove 6045 can overlap with the solid-gas exchange port 602, so that the heat exchange medium inside the heat-conducting pipe sleeve 601 can be discharged, and the liquid heat exchange medium inside the heat exchange chamber 1 can enter the interior of the heat-conducting pipe sleeve 601;

[0091] After the vaporized heat exchange medium is discharged, the first spring 605 pulls back, so that the superheat heat exchange part 606 is restored. Under the action of the elastic force of the second spring 6043, the opening and closing sealing door 6044 can be reset, and the opening and closing sealing door 6044 can close the solid-steam exchange port 602, so that the heat exchange medium entering the heat conducting pipe sleeve 601 can be replaced. In the process of the superheat heat exchange part 606 recovering, the area available for the exhaust gas to circulate at the superheat heat exchange part 606 is reduced when the superheat heat exchange part 606 is recovered. The transformation generated when the superheat heat exchange part 606 is recovered can produce a pushing effect on the circulating exhaust gas, so that the flow of the exhaust gas is circulated, effectively avoiding the direct circulation of the exhaust gas.

[0092] When the air pressure inside the heat exchange chamber 1 is relatively high, the opening and closing valve plate 701 is pushed upward, so that the first bellows 401 can be connected to the connecting valve pipe 402, so that the vaporized heat exchange medium can pass through the interior of the heat exchange chamber 1 through the first bellows 401, and under the cooling of the heat exchange medium inside the heat exchange chamber 1, the heat of the vaporized heat exchange medium can be recovered again, and due to the heat release of the vaporized heat exchange medium, the superheat heat exchange part 606 and the telescopic component on the first bellows 401 can move, so that the heat exchange effect of the vaporized heat exchange medium is better, and the liquefied heat exchange medium in the first bellows 401 can flow into the water inlet pipe 2 again, so that it can be recycled.

[0093] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A regenerative incinerator (RTO) heat energy recovery device, comprising a heat exchange chamber (1), an exhaust gas heat exchange pipe (5) being provided inside the heat exchange chamber (1), and a pressure relief assembly being installed on the top of the heat exchange chamber (1), characterized in that: A water inlet pipe (2) is installed at the bottom end of the side of the heat exchange chamber (1), and a water outlet pipe (3) is installed at the top end of the other side of the heat exchange chamber (1); The gas outlet of the pressure relief assembly is connected to a vaporization recovery pipe (4), and the vaporization recovery pipe (4) passes through the interior of the heat exchange chamber (1) and is connected to the water inlet pipe (2); The vaporization recovery pipe (4) and the exhaust gas heat exchange pipe (5) are located inside the heat exchange chamber (1) and have a folding function, and the folded portion forms a superheat heat exchange portion (606) with an inwardly concave cross section; A thermally expandable telescopic device is installed at the opening of the superheat exchange portion (606), and the telescopic device has an extended state and a retracted state; When the telescopic device is in the extended state, it can communicate with the heat exchange chamber (1) to allow liquid in the heat exchange chamber (1) to enter the telescopic device; When the telescopic device is in a retracted state, the liquid in the telescopic device is isolated from the heat exchange chamber (1); The opening of the superheat exchange portion (606) is connected to a first spring (605) that can return the telescopic device to a retracted state.

2. The regenerative thermal incinerator RTO heat energy recovery equipment according to claim 1 is characterized in that: The exhaust gas heat exchange pipe (5) comprises an exhaust gas outlet pipe (501), a second corrugated pipe (502), and an exhaust gas inlet pipe (503); The exhaust gas outlet pipe (501) is installed at the bottom end of the side of the heat exchange chamber (1), the exhaust gas inlet pipe (503) is installed at the top of the heat exchange chamber (1), and the second corrugated pipe (502) is located inside the heat exchange chamber (1); The exhaust gas outlet pipe (501) and the exhaust gas inlet pipe (503) extend into the interior of the heat exchange chamber (1) and are divided into two second corrugated pipes (502). The second corrugated pipes (502) are spiral-shaped and are arranged inside and outside.

3. The regenerative thermal incinerator RTO heat energy recovery equipment according to claim 2 is characterized in that: The vaporization recovery pipe (4) includes a first bellows (401) and a connecting valve pipe (402); The connecting valve pipe (402) is installed on the top of the heat exchange chamber (1), and the upper and lower ends of the first corrugated pipe (401) pass through the interior of the heat exchange chamber (1) and extend out to be connected to the connecting valve pipe (402) and the water inlet pipe (2) respectively.

4. The regenerative thermal incinerator RTO heat energy recovery equipment according to claim 3 is characterized in that: The telescopic device comprises a heat-conducting pipe sleeve (601), a heat-conducting piston tube (603), and an opening and closing component (604); The interior of the heat-conducting pipe sleeve (601) is hollow, and heat-conducting piston tubes (603) are slidably connected to both ends of the heat-conducting pipe sleeve (601), and the end of the heat-conducting piston tube (603) outside the heat-conducting pipe sleeve (601) is connected to the inner wall of the opening of the superheating heat exchange part (606); The middle section of the heat-conducting pipe sleeve (601) is provided with a plurality of solid-steam exchange ports (602) communicating with the interior thereof; The opening and closing component (604) is movably connected to the inner wall of the heat-conducting pipe sleeve (601) and extends from the end of the heat-conducting pipe sleeve (601). The opening and closing component (604) can close the solid-steam exchange port (602), and the end of the heat-conducting piston tube (603) located in the heat-conducting pipe sleeve (601) can drive the opening and closing component (604) to move when moving outward.

5. The regenerative thermal incinerator RTO heat energy recovery equipment according to claim 4 is characterized in that: A sliding groove is provided on the inner wall of the heat-conducting pipe sleeve (601) at the solid-steam exchange port (602), and the solid-steam exchange port (602) passes through the middle of the sliding groove and is communicated with the inner wall of the heat-conducting pipe sleeve (601).

6. The regenerative thermal incinerator RTO heat energy recovery equipment according to claim 5, characterized in that: The heat-conducting piston tube (603) comprises a heat-conducting plug rod (6031) and a heat-conducting plug head (6032); The end of the heat-conducting plug rod (6031) extends into the interior of the heat-conducting pipe sleeve (601) and is installed with a heat-conducting plug head (6032). The diameter of the heat-conducting plug head (6032) is adapted to the inner diameter of the heat-conducting pipe sleeve (601), and the diameter of the heat-conducting plug rod (6031) is smaller than that of the heat-conducting plug head (6032).

7. The regenerative thermal incinerator RTO heat energy recovery equipment according to claim 6, characterized in that: The opening and closing assembly (604) includes an outer pull ring (6041), a pulling rope (6042), a second spring (6043), and an opening and closing sealing door (6044); The outer pull ring (6041) is located at the end of the heat-conducting sleeve (601) and is in contact with the end of the heat-conducting sleeve (601), and the inner diameter of the outer pull ring (6041) is adapted to the heat-conducting plug rod (6031); The pulling rope (6042) is installed on the inner side of the outer pull ring (6041) and extends from the inner wall of the heat conducting pipe sleeve (601) into the sliding groove; The opening and closing sealing door (6044) is slidably connected in the slide groove, and a connecting groove (6045) is provided through the opening and closing sealing door (6044) and can overlap with the solid-steam exchange port (602). The length of the connecting groove (6045) is greater than the diameter of the solid-steam exchange port (602). The end of the pulling rope (6042) extending into the slide is connected to the connecting groove (6045), and a second spring (6043) is installed on the connecting surface between the connecting groove (6045) and the pulling rope (6042), and the end of the second spring (6043) is connected to the inner wall of the slide.

8. The regenerative thermal incinerator RTO heat energy recovery equipment according to claim 7, characterized in that: The pressure relief assembly comprises an opening and closing valve plate (701), an opening and closing valve stem (702), and a third spring (703); The first bellows (401) is connected to the connecting valve pipe (402) in a downwardly inclined shape, and the bottom end of the connecting valve pipe (402) is connected to the interior of the heat exchange chamber (1); The bottom end of the opening and closing valve plate (701) is in a tapered structure that gradually becomes larger upwards, and the top of the opening and closing valve plate (701) is in an inclined shape that gradually approaches the first bellows (401) downwards. The opening and closing valve plate (701) is vertically slidably connected to the connecting valve pipe (402); An opening and closing valve stem (702) is installed in the middle of the top of the opening and closing valve plate (701), and the top end of the opening and closing valve stem (702) extends from the top of the connecting valve pipe (402); The outer periphery of the opening and closing valve stem (702) is provided with a third spring (703), and the upper and lower ends of the third spring (703) are respectively connected to the inner fixed portion of the connecting valve tube (402) and the top of the opening and closing valve plate (701).

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