Waste heat recovery heat pump with heat storage device

Abstract

The invention discloses a waste heat recovery heat pump with a heat storage device, and relates to the technical field of heat pumps, the waste heat recovery heat pump comprises a case, a waste heat recoverer is mounted in the case, a heat accumulator is arranged on the side surface of the waste heat recoverer, and a scrap scraper is mounted in the heat accumulator. According to the waste heat recovery heat pump with the heat storage device, the purposes of cleaning scale in real time and guiding water flow to increase the heat storage efficiency during use are achieved, the scrap scraper and the flow guiding component work cooperatively, the surfaces of related heat exchange components can be cleaned actively, scale attachment is reduced, the propeller can stir water flow, local water flow retention is avoided, and a scale layer is formed; the angle of the flow guide component can be flexibly adjusted, the flow guide component is matched with the flow dividing component to accurately adjust the flow direction and flow of a working medium, it is ensured that the working medium is evenly distributed in the heat exchange component, local overload or retention is avoided, and the non-return component avoids damage to circulation balance due to backflow of the working medium.

Description

Technical Field

[0001] This invention relates to the field of heat pump technology, specifically to a waste heat recovery heat pump with a heat storage device. Background Technology

[0002] A heat pump is a highly efficient and energy-saving device that transfers heat through a reverse thermodynamic cycle. Its core principle is to absorb heat from a low-temperature heat source (such as air, groundwater, soil, or industrial waste heat), and then transfer it to a high-temperature end after energy enhancement to meet the needs of heating, hot water, or industrial heat. Heat pumps are a key technology hub for global energy transition, the achievement of carbon neutrality goals, and the protection of people's livelihoods. Their role is particularly prominent in the current context of high dependence on fossil fuels and an escalating climate crisis.

[0003] Heat pump equipment capable of waste heat recovery requires periodic descaling through acid washing, high-pressure water flushing, or mechanical brushing. This not only consumes time and causes downtime but may also damage the equipment structure. It cannot cope with the scale layer generated in real time during operation and lacks a real-time interception mechanism for scale. The scale layer will gradually adhere and easily accumulate in the pipe. There are no active cleaning components, and the scale layer will still accumulate after long-term operation. Moreover, the water flow can only guide the medium along a fixed path and cannot adjust the guiding angle according to changes in water flow velocity and working fluid flow rate, resulting in local medium stagnation and excessively low flow velocity, which in turn creates conditions for scale layer adhesion. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a waste heat recovery heat pump with a heat storage device, comprising a chassis, a waste heat recovery unit installed inside the chassis, a heat accumulator disposed on the side of the waste heat recovery unit, a scraper installed inside the heat accumulator, the heat accumulator including a housing component, the surface of the housing component contacting the inner wall of the chassis, a finned component disposed inside the housing component, a flow diversion component installed inside the finned component, and the scraper including a feeding component. The surface of the feed component contacts the inner wall of the housing component. A flow guiding component is installed inside the feed component. The flow guiding component includes a flow guiding plate. A connecting shaft and a limiting key are fixedly connected to the side of the flow guiding plate. An arc groove is formed on the surface of the flow guiding plate. A propeller is rotatably connected to the inner wall of the arc groove. The propeller includes a pin. The outer surface of the pin rotates with the inner wall of the arc groove. A circular block is fixedly connected to the outer surface of the pin. An arc plate is fixedly connected to the outer surface of the circular block. The compression component inside the exhaust gas transducer is responsible for compressing the working fluid.

[0005] Preferably, the waste heat recovery unit includes a waste gas energy exchange component, the surface of which is in contact with the inner wall of the casing, a compression component is installed inside the waste gas energy exchange component, and a check valve is provided inside the compression component.

[0006] Preferably, the exhaust gas energy exchange component includes a flue gas duct, an air collecting ring fixedly connected to the end of the flue gas duct, a heat dissipation pipe fixedly connected to the inner side of the air collecting ring, an insulation cover sleeved on the outer surface of the air collecting ring, a support frame detachably connected to the outer surface of the insulation cover, an end of the support frame fixed to the inner wall of the casing, and the end of the flue gas duct away from the air collecting ring fixed to the inner wall of the casing. The pressure plate reciprocates along the axial direction of the compression cylinder to mechanically compress the low-temperature, low-pressure gaseous working fluid inside the cylinder.

[0007] Preferably, the compression component includes a compression push rod, a compression cylinder is fixedly connected to the outer surface of the compression push rod, a pressure plate is fixedly connected to the end of the compression push rod, the outer surface of the pressure plate slides against the inner wall of the compression cylinder, a cooling pipe is fixedly connected to the end of the compression cylinder, and an electronic control valve is fixedly connected to the surface of the cooling pipe. The electronic control valve fixed to the surface of the cooling pipe can adjust the working fluid flow rate in real time according to the working fluid pressure and subsequent heat storage requirements.

[0008] Preferably, the check valve component includes a liquid pipe, the end of which is fixed to the inner wall of the compression cylinder. A ring frame and a filler ring are fixedly connected to the inner wall of the liquid pipe. A tension spring is fixedly connected to the surface of the ring frame. A sleeve is fitted onto the outer surface of the tension spring. A locking ball is fixedly connected to the end of the ring frame away from the ring frame. The outer surface of the locking ball slides against the inner wall of the sleeve. The end of the sleeve is fixed to the outer surface of the ring frame, pushing the locking ball to fit tightly against the filler ring to achieve a seal and block the reverse flow path.

[0009] Preferably, the housing component includes an insulated water tank, the outer surface of which is fixed to the inner wall of the housing, a support rod fixedly connected to the bottom of the insulated water tank, the end of which is fixed to the inner wall of the housing, a drain pipe, an inlet pipe, and a outlet pipe fixedly connected to the surface of the insulated water tank, an electronic expansion valve fixedly connected to the end of the liquid pipe, the end of which is fixed to the inner wall of the insulated water tank, and the inner wall of the insulated water tank is fixed to the outer surface of the cooling pipe. The expansion valve, through its throttling effect, reduces the pressure to a low-temperature, low-pressure gas-liquid mixture, preparing for subsequent heat exchange.

[0010] Preferably, the fin component includes a fin shell, a heat dissipation conduit is fixedly connected to the inner wall of the fin shell, a distribution pipe and a converging pipe are fixedly connected to the inner wall of the fin shell, the ends of the distribution pipe and the converging pipe are fixed to the inner wall of the insulated water tank, the surface of the distribution pipe is fixed to the end of the compression spring, and the distribution pipe evenly distributes the gas-liquid mixture working fluid output by the electronic expansion valve to the fin shell.

[0011] Preferably, the flow-dividing component includes a connecting ring, the outer surface of which is fixed to the inner wall of the cooling pipe, a rotating shaft is fixedly connected to the inner wall of the connecting ring, and a flow-dividing plate is rotatably connected to the outer surface of the rotating shaft. The flow-dividing plate can rotate flexibly around the rotating shaft and automatically adjust the flow-guiding angle according to the working fluid flow rate.

[0012] Preferably, the feeding component includes a feeding motor, the outer surface of which is fitted with a cover, the outer surface of which is fixed to the outer surface of the insulated water tank and the inner wall of the casing, the end of which is fixedly connected to a screw, the end of which is rotatably connected to the inner wall of the insulated water tank, the outer surface of which is threadedly connected to a scraper, the outer surface of which is fixedly connected to a key, the outer surface of which slides against the inner wall of the insulated water tank, and the scraper is close to the heat exchange component inside the insulated water tank, thereby mechanically scraping off the initial scale layer on the surface of the heat exchange component through linear movement.

[0013] Preferably, the outer surface of the connecting shaft rotates with the inner wall of the scraper, the outer surface of the limiting key slides with the inner wall of the scraper, a plurality of guide plates are provided and evenly distributed along the inner wall of the scraper, the maximum angle between the guide plates and the scraper that can rotate is 45°, and the disturbance effect generated by the propeller rotating with the water flow further reduces the water flow stagnation area.

[0014] This invention provides a waste heat recovery heat pump with a heat storage device. It has the following beneficial effects: (i) This waste heat recovery heat pump with a heat storage device can efficiently capture low-temperature waste heat from industrial waste gas through the waste heat recovery structure. With the help of flue gas conveying and heat transfer components, the waste heat is accurately transferred to the heat pump working fluid. The working fluid releases heat after compression and is evenly distributed to the hot water storage tank through finned components. The heat storage tank's insulation design can significantly reduce heat loss. With the flow control components, the flow and throttling state of the working fluid can be adjusted in real time to ensure that the heat storage medium (water) is maintained in the target temperature range for a long time. This process not only realizes the resource utilization of industrial waste heat and avoids energy waste, but also provides continuous and stable heat for heating, hot water supply and other scenarios, which meets the needs of energy conservation and carbon neutrality and effectively reduces the overall energy cost.

[0015] (II) The waste heat recovery heat pump with heat storage device can drive the scraper to slide along the inner wall of the heat storage tank through the scraper-related components to mechanically clean the surface of the heat exchange components and remove the initial scale layer in time. The flow guiding component can guide the water flow direction by adjusting the angle. Combined with the stirring effect generated by the surface propeller rotating with the water flow, it avoids local water flow stagnation and reduces the conditions for scale formation from the source. This proactive prevention and control method does not rely on traditional maintenance methods such as frequent acid washing and high-pressure flushing. It avoids the corrosion of metal parts by chemical cleaning, reduces downtime maintenance time, effectively prevents the heat exchange efficiency decay caused by scale accumulation, significantly extends the life of the core components of the equipment, and ensures long-term operating efficiency.

[0016] (III) This waste heat recovery heat pump with heat storage device achieves precise control of the working fluid and water flow through multiple structures. The check valve can prevent the working fluid from flowing backward with the help of elastic components and sealing structure, thus avoiding disruption of the heat pump cycle balance. The flow distribution component can flexibly adjust the distribution of the working fluid in the heat exchange component through a rotatable flow distribution plate. Combined with the angle limit of the flow guide component and the water flow guidance, it ensures that the working fluid flows evenly through each heat exchange area, avoiding local overload or medium short circuit. The flow control and throttling components can adjust parameters in real time according to the working fluid pressure, water tank temperature and other operating conditions, so that the equipment can adapt to different operating conditions, reduce the risk of failure caused by uneven medium flow or circulation disorder, ensure the long-term efficient and stable operation of the heat pump cycle, and improve the overall reliability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a cross-sectional structural diagram of the waste heat recovery device, heat accumulator, and scraper of the present invention. Figure 4 This is a cross-sectional structural diagram of the waste heat recovery device of the present invention; Figure 5 This is a partially enlarged structural schematic diagram of the check valve component of the present invention; Figure 6 This is a partial cross-sectional structural diagram of the box component of the present invention; Figure 7 This is a cross-sectional structural diagram of the fin component of the present invention; Figure 8 This is a cross-sectional structural diagram of the flow diversion component of the present invention; Figure 9 This is a cross-sectional structural diagram of the feed component of the present invention; Figure 10 This is a schematic diagram showing the assembly position of the scraper frame of the present invention; Figure 11 This is a partially enlarged structural schematic diagram of the flow guiding component of the present invention; Figure 12 This is a schematic diagram of the flow guiding component of the present invention.

[0018] In the diagram: 1. Chassis; 2. Waste heat recovery unit; 21. Exhaust gas energy exchange component; 211. Flue gas duct; 212. Gas collecting ring; 213. Heat dissipation pipe; 22. Compression component; 221. Compression push rod; 222. Compression cylinder; 223. Cooling pipe; 224. Electronic control valve; 23. Check valve component; 231. Liquid pipe; 232. Ring frame; 233. Tension spring; 234. Housing; 235. Locking ball; 236. Filler ring; 3. Heat accumulator; 31. Housing component; 311. Insulated water tank; 312. Frame; 313. Drain pipe; 3 14. Inlet pipe; 315. Drain pipe; 316. Electronic expansion valve; 32. Fin assembly; 321. Fin shell; 322. Distribution pipe; 323. Heat dissipation duct; 324. Converging pipe; 33. Flow divider assembly; 331. Connecting ring; 332. Rotating shaft; 333. Flow divider plate; 4. Scraper; 41. Feed assembly; 411. Feed motor; 412. Screw; 413. Scraper frame; 414. Protruding key; 42. Flow guide assembly; 421. Flow guide plate; 422. Connecting shaft; 423. Limit key; 424. Arc groove; 425. Propeller. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1, please refer to Figure 1 , Figure 2This invention provides a waste heat recovery heat pump with a heat storage device, including a casing 1. A waste heat recovery unit 2 is installed inside the casing 1. A heat storage unit 3 is arranged on the side of the waste heat recovery unit 2. A scraper 4 is installed inside the heat storage unit 3. The heat storage unit 3 includes a housing component 31, the surface of which contacts the inner wall of the casing 1. A finned component 32 is arranged inside the housing component 31, and a flow-diverting component 33 is installed inside the finned component 32. The scraper 4 includes a feeding component 41, the surface of which contacts the inner wall of the housing component 31. A flow-guiding component 42 is installed inside the feeding component 41. The flow-guiding component 42 includes a guide plate 421. A connecting shaft 422 and a limiting key 423 are fixedly connected to the side of the guide plate 421. An arc groove 424 is formed on the surface of the guide plate 421. A propeller 425 is rotatably connected to the inner wall of the arc groove 424. The propeller 425 includes a pin, the outer surface of which is connected to... The inner wall of the arc groove 424 rotates, and a circular block is fixedly connected to the outer surface of the pin. An arc plate is fixedly connected to the outer surface of the circular block. Because the surface of the housing component 31 is in contact with the inner wall of the casing 1, it obtains stable support through the casing 1 and can also accommodate the heat exchange medium water through its own structure. The fin component 32 inside the housing component 31 serves as the core heat exchange component, which can increase the contact area between the medium and the waste heat and improve the heat absorption efficiency. The flow distribution component 33 inside the fin component 32 can evenly distribute the medium, such as heat pump working fluid or water flow, entering the fin component 32, avoiding uneven heat exchange caused by local medium retention and ensuring stable heat storage effect. Because the surface of the feeding component 41 is in contact with the inner wall of the housing component 31, it can be positioned by relying on the structure of the housing component 31 to provide power support for subsequent flow guidance and cleaning actions. The flow guiding component 42 inside the feeding component 41 is the core function. The flow guiding plate 421 is connected by the connecting shaft 422 fixed on the side. The guide plate 421 can rotate around the axis, and the limit key 423 can limit the rotation range of the guide plate 421, so that the guide plate 421 can adjust the angle according to the medium flow requirements, accurately guide the medium in the box component 31 to the fin component 32, and improve the heat exchange contact efficiency. The arc groove 424 opened on the surface of the guide plate 421 provides installation and movement space for the propeller 425. The pin of the propeller 425 is rotatably connected to the inner wall of the arc groove 424. When the medium flows through the guide plate 421, it will drive the circular block and arc plate of the propeller 425 to rotate around the pin. This rotation can enhance the disturbance effect of the medium, prevent the medium from stagnating on the surface of the fin component 32, and also help clean the initial impurities or scale on the surface of the fin component 32.

[0021] Example 2, please refer to Figures 3 to 8Based on Embodiment 1, the present invention provides a technical solution: the waste heat recovery unit 2 includes a waste gas energy exchange component 21, the surface of which is in contact with the inner wall of the casing 1. A compression component 22 is installed inside the waste gas energy exchange component 21, and a check valve component 23 is provided inside the compression component 22. The waste gas energy exchange component 21 includes a flue gas duct 211, a gas collecting ring 212 is fixedly connected to the end of the flue gas duct 211, a heat dissipation pipe 213 is fixedly connected to the inner side of the gas collecting ring 212, an insulation cover is fitted on the outer surface of the gas collecting ring 212, a support frame is detachably connected to the outer surface of the insulation cover, the end of the support frame is fixed to the inner wall of the casing 1, and the end of the flue gas duct 211 away from the gas collecting ring 212 is fixed to the inner wall of the casing 1. The compression component 211... The system includes a compression push rod 221, a compression cylinder 222 fixedly connected to the outer surface of the compression push rod 221, a pressure plate fixedly connected to the end of the compression push rod 221, the outer surface of the pressure plate sliding against the inner wall of the compression cylinder 222, a cooling pipe 223 fixedly connected to the end of the compression cylinder 222, an electronic control valve 224 fixedly connected to the surface of the cooling pipe 223, and a check valve 23 including a liquid pipe 231, the end of the liquid pipe 231 fixedly connected to the inner wall of the compression cylinder 222, a ring frame 232 and a filler ring 236 fixedly connected to the inner wall of the liquid pipe 231, a tension spring 233 fixedly connected to the surface of the ring frame 232, a sleeve 234 fitted onto the outer surface of the tension spring 233, and a locking ball 235 fixedly connected to the end of the ring frame 232 away from the ring frame 232. The outer surface of component 5 slides against the inner wall of casing 234, and the end of casing 234 is fixed to the outer surface of ring frame 232. Box component 31 includes an insulated water tank 311, the outer surface of which is fixed to the inner wall of casing 1. A support rod 312 is fixedly connected to the bottom of the insulated water tank 311, and the end of the support rod 312 is fixed to the inner wall of casing 1. A drain pipe 313, an inlet pipe 314, and a drain pipe 315 are fixedly connected to the surface of the insulated water tank 311. An electronic expansion valve 316 is fixedly connected to the end of liquid pipe 231, and the end of the electronic expansion valve 316 is fixed to the inner wall of the insulated water tank 311. The inner wall of the insulated water tank 311 is fixed to the outer surface of cooling pipe 223. Fin component 32 includes a fin shell 321, the inner wall of which is fixed... A heat dissipation duct 323 is fixedly connected to the inner wall of the shell 321. A distribution pipe 322 and a converging pipe 324 are fixedly connected to the inner wall of the insulated water tank 311. The surface of the distribution pipe 322 is fixed to the end of the compression spring 233. The diversion component 33 includes a connecting ring 331. The outer surface of the connecting ring 331 is fixed to the inner wall of the cooling pipe 223. A rotating shaft 332 is fixedly connected to the inner wall of the connecting ring 331. A diversion plate 333 is rotatably connected to the outer surface of the rotating shaft 332. The waste heat recovery unit 2 serves as the core for waste heat capture and working fluid treatment. The surface of the waste gas energy exchange component 21 it contains is in contact with the inner wall of the casing 1. The overall structure is positioned by relying on the casing 1. The low-temperature heat source of industrial waste gas is introduced through the flue gas duct 211.Because the end of the flue gas duct 211 furthest from the gas collecting ring 212 is fixed to the inner wall of the casing 1, the exhaust gas can be stably delivered to the gas collecting ring 212. The gas collecting ring 212 evenly distributes the exhaust gas to the heat dissipation pipe 213 fixed on the inner side, so that the heat of the exhaust gas is transferred to the subsequent working medium through the pipe wall of the heat dissipation pipe 213. At the same time, the heat insulation cover sleeved on the outer surface of the gas collecting ring 212 reduces the loss of waste heat during the transfer process. The end of the support frame that can be detachably connected to the outer surface of the heat insulation cover is fixed to the inner wall of the casing 1, further reinforcing the installation stability of the exhaust gas energy exchange component 21 and ensuring efficient transfer of waste heat. The box component 31 of the heat accumulator 3 undertakes the functions of heat storage and medium management. The outer surface of the insulated water tank 311 is fixed to the inner wall of the casing 1. The inner wall of the casing 1 is fixed, and the end of the bottom-fixed support rod 312 is fixed to the inner wall of the casing 1. This double fixation ensures that the insulated water tank 311 does not shift during equipment operation. The inlet pipe 314 fixed to the surface of the insulated water tank 311 is used to replenish the heat storage medium water, and the drain pipe 315 is used to output the heated hot water to meet external heat demand. The drain pipe 313 periodically discharges the impurities deposited in the water tank to prevent impurities from affecting the heat exchange efficiency. The end of the electronic expansion valve 316 fixed to the end of the liquid pipe 231 is fixed to the inner wall of the insulated water tank 311. The high-pressure liquid working fluid transported by the check valve 23 flows into the electronic expansion valve 316, and the pressure is reduced to low-temperature, low-pressure gas-liquid through the valve's throttling effect. The mixture is in a mixed state, preparing for subsequent heat exchange. The inner wall of the insulated water tank 311 is fixed to the outer surface of the cooling pipe 223. The high-temperature working fluid in the cooling pipe 223 can first exchange heat with the water in the tank, releasing some heat in advance. The ends of the distribution pipe 322 and the convergence pipe 324 fixed to the inner wall of the shell 321 of the fin component 32 are both fixed to the inner wall of the insulated water tank 311. The surface of the distribution pipe 322 is also fixed to the end of the compression spring 233, which not only strengthens the installation of the distribution pipe 322, but also helps to stabilize the structure of the check valve component 23. The distribution pipe 322 evenly distributes the gas-liquid mixed working fluid output by the electronic expansion valve 316 to the heat dissipation duct 323 fixed to the inner wall of the shell 321 for heat dissipation. The conduit 323 increases the contact area between the working fluid and the water in the tank, allowing the working fluid to fully release heat to heat the water and complete heat storage. The heat-exchanged working fluid then flows into the converging pipe 324, preparing for the next cycle. The outer surface of the connecting ring 331 of the diverting component 33 is fixed to the inner wall of the cooling pipe 223. A diverting plate 333 is rotatably connected to the outer surface of the rotating shaft 332 fixed to the inner wall of the connecting ring 331. When the working fluid flows in the cooling pipe 223, the diverting plate 333 can rotate flexibly around the rotating shaft 332, automatically adjusting the guiding angle according to the working fluid flow rate. This prevents localized stagnation of the working fluid in the cooling pipe 223, ensuring a uniform flow of the working fluid to subsequent components and further improving overall heat exchange and circulation efficiency.

[0022] Example 3, please refer to Figures 9 to 12Based on embodiments 1-2, the present invention provides a technical solution: the feeding component 41 includes a feeding motor 411, the outer surface of the feeding motor 411 is fitted with a cover, the outer surface of the cover is fixed to the outer surface of the insulated water tank 311 and the inner wall of the casing 1, the end of the feeding motor 411 is fixedly connected to a screw 412, the end of the screw 412 is rotatably connected to the inner wall of the insulated water tank 311, and the outer surface of the screw 412 is threadedly connected to a scraper 413, the outer surface of the scraper 413 is fixedly connected to a scraper 413. A key 414 is fixedly connected, and the outer surface of the key 414 slides against the inner wall of the insulated water tank 311. The outer surface of the connecting shaft 422 rotates against the inner wall of the scraper 413. The outer surface of the limiting key 423 slides against the inner wall of the scraper 413. Several guide plates 421 are provided and evenly distributed along the inner wall of the scraper 413. The maximum angle between the guide plates 421 and the scraper 413 that can rotate is 45°. The scraper 413 is close to the heat exchange components inside the insulated water tank 311 and moves linearly. The system mechanically removes initial scale buildup from the surface of the heat exchange components, preventing scale accumulation from affecting heat exchange efficiency. The outer surface of the connecting shaft 422 of the flow guide component 42 rotates relative to the inner wall of the scraper 413, allowing the flow guide plate 421 to rotate flexibly around the connecting shaft 422. Simultaneously, the outer surface of the limiting key 423 slides relative to the inner wall of the scraper 413, limiting the rotation range of the flow guide plate 421 and ensuring that the maximum included angle between the flow guide plate 421 and the scraper 413 is 45°, preventing excessive rotation of the flow guide plate 421. To prevent water flow turbulence, several guide plates 421 are provided and evenly distributed along the inner wall of the scraper 413. When the scraper 413 moves along the inner wall of the insulated water tank 311, the guide plates 421 can simultaneously guide the heat storage medium water in the insulated water tank 311, so that the water flows evenly to the heat exchange components, increasing the contact area between the medium and the heat exchange components. The turbulence effect generated by the propeller 425 in the arc groove 424 on the surface of the guide plate 421 as it rotates with the water flow further reduces the water flow stagnation area, reducing the probability of scale formation from the source.

[0023] The working principle of this waste heat recovery heat pump with a heat storage device is described in detail below: In operation, the compression component 22 is first activated. The pressure plate at the end of the compression push rod 221 slides against the inner wall of the compression cylinder 222, initially acting on the heat pump working fluid within the compression cylinder 222. The working fluid, in a high-temperature, high-pressure gaseous state, then enters the cooling pipe 223 fixed at the end of the compression cylinder 222. The electronic control valve 224 on the surface of the cooling pipe 223 adjusts the working fluid flow rate in real time according to the working fluid pressure and subsequent heat storage requirements, ensuring stable delivery of the working fluid. Subsequently, the high-temperature, high-pressure gaseous working fluid flows along the cooling pipe 223 to the distribution pipe 322 of the finned component 32 in the heat accumulator 3. The distribution pipe 322 evenly distributes the working fluid to multiple sets of heat dissipation ducts 323 fixed to the inner wall of the shell 321. During this process... The waste gas energy exchange component 21 of the waste heat recovery unit 2 works synchronously. Industrial waste gas enters the gas collection ring 212 through the flue gas duct 211, and releases waste heat through the heat dissipation pipe 213 inside the gas collection ring 212. The insulated water tank 311 is fixed to the inner wall of the casing 1 by the support rod 312. The water inlet pipe 314 on its surface is used for water replenishment, the drain pipe 315 outputs hot water, and the sewage pipe 313 discharges impurities. The heat insulation cover outside the gas collection ring 212 reduces waste heat loss, and the support frame ensures its structural stability. The high-temperature and high-pressure gaseous working fluid in the heat dissipation duct 323 releases heat to heat the water in the insulated water tank 311 to achieve heat storage. It condenses into a high-pressure liquid working fluid due to heat release, and then the working fluid flows into the fin component. The converging tube 324 of component 32 completes the collection, and the high-pressure liquid working fluid flows out from the converging tube 324 and enters the electronic expansion valve 316 connected to the end of the liquid pipe 231 in the housing component 31. Through the throttling and pressure reduction effect of the electronic expansion valve 316, the working fluid is converted into a low-temperature and low-pressure gas-liquid mixture, and then flows along the liquid pipe 231 to the check valve component 23. After entering the check valve component 23, the positive pressure of the working fluid pushes the locking ball 235 to compress the tension spring 233 fixed on the surface of the compression ring frame 232, causing the locking ball 235 to disengage from the filler ring 236 fixed on the inner wall of the liquid pipe 231. The working fluid passes through the check valve component 23 in one direction and finally flows into the compression cylinder 222, completing one cycle of working fluid circulation. The scraper 4 continues to work. To ensure heat exchange efficiency, the cover of the feed motor 411 is fixed to the outer surface of the insulated water tank 311 and the inner wall of the casing 1. The feed motor 411 drives the screw 412 to rotate. The scraper 413, which is threaded to the outer surface of the screw 412, slides along the inner wall of the insulated water tank 311 through the protruding key 414 fixed to the outer surface. In the flow guiding component 42 installed on the inner wall of the scraper 413, the flow guide plate 421 rotates around the connecting shaft 422 to guide the water flow in the insulated water tank 311. The propeller 425, which is rotatably connected to the inner wall of the arc groove 424 on the surface of the flow guide plate 421, rotates synchronously with the water flow to further assist in the flow guidance and prevent scale from accumulating on the surface of the heat dissipation pipe 323, ensuring the continuous and stable operation of the equipment.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery heat pump with a heat storage device, comprising a casing (1), characterized in that: The chassis (1) is equipped with a waste heat recovery unit (2). A heat accumulator (3) is provided on the side of the waste heat recovery unit (2). A scraper (4) is installed inside the heat accumulator (3). The heat accumulator (3) includes a housing component (31). The surface of the housing component (31) is in contact with the inner wall of the chassis (1). A finned component (32) is provided inside the housing component (31). A flow divider (33) is installed inside the finned component (32). The scraper (4) includes a feeding component (41). The surface of the feeding component (41) is in contact with the inner wall of the housing component (31). The feed component (41) is in wall contact with the feed wall. The feed component (41) is equipped with a flow guide component (42). The flow guide component (42) includes a flow guide plate (421). A connecting shaft (422) and a limit key (423) are fixedly connected to the side of the flow guide plate (421). An arc groove (424) is opened on the surface of the flow guide plate (421). A propeller (425) is rotatably connected to the inner wall of the arc groove (424). The propeller (425) includes a pin. The outer surface of the pin rotates with the inner wall of the arc groove (424). A round block is fixedly connected to the outer surface of the pin. An arc plate is fixedly connected to the outer surface of the round block.

2. A waste heat recovery heat pump with a heat storage device according to claim 1, characterized in that: The waste heat recovery unit (2) includes a waste gas energy exchange component (21), the surface of which is in contact with the inner wall of the casing (1), and a compression component (22) is installed inside the waste gas energy exchange component (21), and a check component (23) is provided inside the compression component (22).

3. A waste heat recovery heat pump with a heat storage device according to claim 2, characterized in that: The exhaust gas energy exchange component (21) includes a flue gas duct (211), with a gas collecting ring (212) fixedly connected to the end of the flue gas duct (211). A heat dissipation pipe (213) is fixedly connected to the inner side of the gas collecting ring (212). An insulation cover is fitted on the outer surface of the gas collecting ring (212). A support frame is detachably connected to the outer surface of the insulation cover. The end of the support frame is fixed to the inner wall of the chassis (1). The end of the flue gas duct (211) away from the gas collecting ring (212) is fixed to the inner wall of the chassis (1).

4. A waste heat recovery heat pump with a heat storage device according to claim 3, characterized in that: The compression component (22) includes a compression push rod (221), a compression cylinder (222) is fixedly connected to the outer surface of the compression push rod (221), a pressure plate is fixedly connected to the end of the compression push rod (221), the outer surface of the pressure plate slides against the inner wall of the compression cylinder (222), a cooling pipe (223) is fixedly connected to the end of the compression cylinder (222), and an electronic control valve (224) is fixedly connected to the surface of the cooling pipe (223).

5. A waste heat recovery heat pump with a heat storage device according to claim 4, characterized in that: The check valve component (23) includes a liquid pipe (231), the end of which is fixed to the inner wall of the compression cylinder (222). A ring frame (232) and a filler ring (236) are fixedly connected to the inner wall of the liquid pipe (231). A compression spring (233) is fixedly connected to the surface of the ring frame (232). A sleeve (234) is fitted on the outer surface of the compression spring (233). A locking ball (235) is fixedly connected to the end of the ring frame (232) away from the ring frame (232). The outer surface of the locking ball (235) slides against the inner wall of the sleeve (234). The end of the sleeve (234) is fixed to the outer surface of the ring frame (232).

6. A waste heat recovery heat pump with a heat storage device according to claim 5, characterized in that: The housing component (31) includes an insulated water tank (311), the outer surface of which is fixed to the inner wall of the housing (1), a support rod (312) is fixedly connected to the bottom of the insulated water tank (311), the end of which is fixed to the inner wall of the housing (1), a drain pipe (313), a water inlet pipe (314) and a drain pipe (315) are fixedly connected to the surface of the insulated water tank (311), an electronic expansion valve (316) is fixedly connected to the end of the liquid pipe (231), the end of which is fixed to the inner wall of the insulated water tank (311), and the inner wall of the insulated water tank (311) is fixed to the outer surface of the cooling pipe (223).

7. A waste heat recovery heat pump with a heat storage device according to claim 6, characterized in that: The fin component (32) includes a fin shell (321), the inner wall of which is fixedly connected to a heat dissipation conduit (323), the inner wall of which is fixedly connected to a distribution pipe (322) and a converging pipe (324), the ends of the distribution pipe (322) and the converging pipe (324) are fixed to the inner wall of the insulated water tank (311), and the surface of the distribution pipe (322) is fixed to the end of the compression spring (233).

8. A waste heat recovery heat pump with a heat storage device according to claim 7, characterized in that: The flow divider (33) includes a connecting ring (331), the outer surface of which is fixed to the inner wall of the cooling pipe (223), and a rotating shaft (332) is fixedly connected to the inner wall of the connecting ring (331). A flow divider plate (333) is rotatably connected to the outer surface of the rotating shaft (332).

9. A waste heat recovery heat pump with a heat storage device according to claim 8, characterized in that: The feeding component (41) includes a feeding motor (411). The outer surface of the feeding motor (411) is fitted with a cover. The outer surface of the cover is fixed to the outer surface of the insulated water tank (311) and the inner wall of the casing (1). The end of the feeding motor (411) is fixedly connected to a screw (412). The end of the screw (412) is rotatably connected to the inner wall of the insulated water tank (311). The outer surface of the screw (412) is threadedly connected to a scraper (413). The outer surface of the scraper (413) is fixedly connected to a protruding key (414). The outer surface of the protruding key (414) slides against the inner wall of the insulated water tank (311).

10. A waste heat recovery heat pump with a heat storage device according to claim 9, characterized in that: The outer surface of the connecting shaft (422) rotates with the inner wall of the scraper (413), the outer surface of the limiting key (423) slides with the inner wall of the scraper (413), and a plurality of guide plates (421) are provided and are evenly distributed along the inner wall of the scraper (413).

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