Waste heat utilization heat pump heat supply flow distribution equipment and distribution method

Abstract

The invention discloses waste heat utilization heat pump heat supply flow distribution equipment and a distribution method, and belongs to the technical field of heat pump heat supply. The equipment comprises a heat pump body and a main pipe, and a loss reduction mechanism is communicated between the heat pump body and the main pipe; the loss reduction mechanism comprises a transverse pipe and a spiral blade, the spiral blade is sleeved with the transverse pipe, and the spiral blade is located in the middle of the transverse pipe; a first conical ring is arranged at one end part of the transverse pipe; a diversion hole is formed in the inner wall of the transverse pipe, a diversion groove is formed in the transverse pipe in the length direction, and the diversion hole communicates with the diversion groove. In the discharging process, the spiral blades and the annular flow dividing grooves are adopted, heat energy forms outer side annular heat energy and spiral heat energy flow located in the main pipe, and the problems that during heat energy distribution, serious pressure loss occurs, and the heat energy temperature is seriously reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump heating, and in particular to a heat pump heating flow distribution device and a distribution method for waste heat utilization. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Energy consumed in industrial manufacturing processes is lost as waste heat, much of it released as low-grade waste heat at temperatures below 230°C. Recovering this waste heat can provide electricity, thermal energy, or mechanical energy, thereby improving energy efficiency. This is considered a significant technological opportunity, and its full development and utilization could make a significant contribution to energy conservation and emission reduction. When recycling heat energy, high-temperature heat pumps are required to distribute and transport the recovered heat.

[0004] The existing steam production process of high-temperature heat pumps is generally high-temperature liquid flash evaporation. To distribute the heat flow of the heat pump, the heat pump transmits heat energy to the heating pipe network and uses control valves at various points to achieve multi-region heat energy distribution. However, this method has the following defects in actual use:

[0005] During the heat energy distribution process, the heat energy in the flow path is prone to severe pressure loss and severe temperature drop, resulting in heat energy waste and poor heating effect. At the same time, during the heat energy distribution and transportation process, the heat pump compressor frequency needs to be adjusted accordingly for the required heat energy at different temperatures, which increases the user's labor workload and is prone to adjustment errors, increasing labor costs and poor practicality. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a heat pump heating flow distribution device and distribution method for waste heat utilization, so as to solve the problems of severe pressure loss and severe temperature drop that are prone to occur during heat energy distribution.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] In a first aspect, the present invention provides a heat pump heating flow distribution device for waste heat utilization;

[0009] A heat pump heat supply flow distribution device for waste heat utilization, comprising a heat pump body and a main pipe connected to the heat pump body, wherein the main pipe is connected to a loss reduction mechanism;

[0010] The loss reduction mechanism includes a transverse tube and a spiral blade, the transverse tube is sleeved on the spiral blade, and the spiral blade is located in the middle of the transverse tube; a first conical ring is provided at one end of the transverse tube; a guide hole is opened on the inner wall of the transverse tube, and a diversion groove is opened in the transverse tube along the length direction, and the guide hole is connected to the diversion groove.

[0011] In some embodiments, a cavity is defined in the first conical ring, an adjustment ring and a spring are disposed inside the diverter groove, the spring is disposed on the adjustment ring, and the adjustment ring is slidably connected to the diverter groove.

[0012] In some embodiments, a fixing ring is further included, the transverse tube is sleeved on the fixing ring, the fixing ring is sleeved on the spiral blade, and the spiral blade is rotatably connected to the fixing ring.

[0013] In some embodiments, a second conical ring is provided at one end of the fixing ring, and an outwardly expanded surface of the second conical ring faces the guide hole.

[0014] In some embodiments, a heat exhaust pipe is provided on the heat pump body, and one end of the heat exhaust pipe is spirally arranged and communicated with the main pipe.

[0015] In some embodiments, the heat exhaust pipe is connected to a branch pipe.

[0016] In some embodiments, an air-guiding tee is further included, wherein a first end of the air-guiding tee is connected to the diversion groove, a second end of the air-guiding tee is connected to the interior of the first conical ring, and a third end of the air-guiding tee is used to connect to the air pump.

[0017] In some embodiments, the gas-guiding tee is connected to an exhaust pipe.

[0018] In some embodiments, the first conical ring is made of perfluoroether rubber.

[0019] In a second aspect, the present invention provides a heat pump heating flow distribution method for waste heat utilization;

[0020] A heat pump heating flow distribution method for waste heat utilization, comprising:

[0021] The recovered heat energy is introduced into the corresponding heat pump body and mixed, and the mixed heat energy is discharged to the main pipe through the loss reduction mechanism for heat energy distribution;

[0022] Among them, in the loss reduction mechanism, the mixed heat energy impacts the spiral blades to make them rotate, forming spiral flow heat energy; part of the mixed heat energy flows into the diversion groove along the guide hole, forming an outer layer of annular heat energy.

[0023] The technical solution provided by the present invention has at least the following technical effects or advantages:

[0024] 1. The technical solution provided by the present invention adopts spiral blades and annular diversion grooves during the discharge process to form outer annular heat energy in the main pipe and spiral heat energy flow inside it. The outer annular heat energy can form a temperature isolation layer, reduce the heat loss of the pipe wall, reduce the pressure loss, and reduce the waste of heat energy and the occurrence of poor heating effect.

[0025] 2. The technical solution provided by the present invention can converge the exhaust heat temperatures in different heat pumps. During the convergence process, corresponding solenoid valves are used to regulate the emission ratio, so that the mixed heat energy reaches different temperatures, reducing the frequency adjustment operation of the built-in compressor of the heat pump body, making it more convenient, reducing the user's labor and adjustment errors, reducing labor costs, and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 This is a structural diagram of a heat pump heating flow distribution device for waste heat utilization provided by an embodiment of the present invention;

[0028] Figure 2 Schematic diagram of the structure of the loss reduction mechanism provided by an embodiment of the present invention;

[0029] Figure 3 1 is a schematic structural diagram of a spiral blade provided by an embodiment of the present invention;

[0030] Figure 4 The embodiment of the present invention provides Figure 3 A magnified schematic diagram of point A in the middle;

[0031] Figure 5 1 is a schematic diagram of a partial structure of a heat exhaust pipe provided in an embodiment of the present invention;

[0032] Figure 6 1 is a schematic structural diagram of a second conical ring and a fixed ring provided in an embodiment of the present invention;

[0033] Figure 7 is a schematic cross-sectional view of a transverse tube provided by an embodiment of the present invention;

[0034] In the figure: 100, heat pump body; 110, heat exhaust pipe; 111, branch pipe; 200, main pipe; 210, diverter tee; 300, loss reduction mechanism; 310, cross pipe; 311, diverter groove; 312, adjustment ring; 313, guide hole; 314, air guide tee; 315, spring; 320, first tapered ring; 321, cavity; 330, spiral blade; 331, fixing ring; 332, second tapered ring.

[0035] In order to show the positions of various parts, the distances or sizes between them are exaggerated. The schematic diagram is for reference only. DETAILED DESCRIPTION

[0036] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0037] As introduced in the background technology, the existing technology uses a high-temperature heat pump to distribute the heating flow. In order to solve the above technical problems, this embodiment proposes a heat pump heating flow distribution device that utilizes waste heat, and designs a loss reduction mechanism 300 to reduce pressure loss while reducing costs, reduce heat energy waste, and improve heating use effect.

[0038] Combine Figure 1-Figure 7 The heat pump heat flow distribution device for waste heat utilization includes two heat pump bodies 100 and a main pipe 200 arranged on the outside of the heat pump body. The main pipe 200 is connected to a loss reduction mechanism 300. Specifically, the main pipe 200 includes a first pipe body and a second pipe body, and the loss reduction mechanism 300 includes a cross pipe 310 and a spiral blade 330. The two heat pump bodies are respectively connected to one end of the first pipe body, the other end of the first pipe body is connected to one end of the cross pipe 310, the second end of the cross pipe 310 is connected to one end of the second pipe body, and the other end of the second pipe body is connected to a heat dissipation device for distributing the processed heat energy to the corresponding The diversion tee 210 of the area to be heated; the transverse tube 310 is sleeved on the spiral blade 330, and the spiral blade 330 is located in the middle of the transverse tube 310 and can rotate under the impact of thermal energy; a first conical ring 320 is installed at one end of the transverse tube 310, and a plurality of guide holes 313 are opened on the inner wall of the transverse tube 310, and the plurality of guide holes 313 are evenly distributed along the circumferential side of the transverse tube 310, and a diversion groove 311 is opened in the transverse tube 310 along the length direction. The diversion groove 311 is annular, and the guide holes 313 are connected to the diversion groove 311. The end of the diversion groove 311 away from the first conical ring 320 passes through the transverse tube 310.

[0039] Based on this, the recovered heat energy is introduced into the corresponding heat pump body 100. When distributing the heat energy, the heat energy is discharged along the first pipe body, the cross pipe 310 and the second pipe body. During the discharge process, the flowing heat energy will impact the spiral blade 330 to rotate. The rotation of the spiral blade 330 consumes a small part of the pressure brought by the heat energy flow, so as to reduce the pressure of the heat energy slightly while discharging it in a spiral shape into the main pipe 200. At the same time, a small amount of heat energy is introduced into the inside of the diverter groove 311 along the guide hole 313, and then discharged into the main pipe 200 along the diverter groove 311. It can form an annular heat energy layer in the loss reduction mechanism 300, and cooperate with the spiral heat energy inside it to inhibit vortex shedding and flow separation, reduce pressure pulsation, and the outer layer of annular heat energy can form a temperature isolation layer, reduce heat dissipation loss of the pipe wall, and reduce direct friction between the spiral flow and the pipe wall, reduce pressure loss, and reduce heat energy waste and poor heating effect.

[0040] Further, combined Figure 2-4 , also includes an air guiding tee 314, a cavity 321 is opened in the first conical ring 320, an adjusting ring 312 and a spring 315 are installed inside the diverter groove 311, one end of the spring 315 is fixed to one end of the cross tube 310 close to the first conical ring 320, and the other end of the spring 315 is fixed to the adjusting ring 312, and the adjusting ring 312 is slidingly connected to the diverter groove 311; the first end of the air guiding tee 314 is connected to the diverter groove 311, and the connection point between the first end of the air guiding tee 314 and the diverter groove 311 is located above the spring 315, the second end of the air guiding tee 314 is connected to the cavity 321, and the third end of the air guiding tee 314 is used to connect with the air pump.

[0041] In this embodiment, the first tapered ring 320 is made of perfluoroether rubber, which has good high-temperature resistance and can reduce the impact of heat energy on the first tapered ring 320 while having deformation capability.

[0042] Based on the above solution, when the heat energy emission is low, the user can also use an air pump to generate gas according to usage needs, and introduce the gas into the cavity 321 through the second end of the gas guide tee 314, so that the inner inclination of the first conical ring 320 changes in amplitude inward, thereby reducing the heat energy flow path transported to the inside of the cross pipe, thereby enhancing the subsequent heat energy emission flow rate.

[0043] When the ambient temperature affects the thermal insulation effect and it is necessary to increase the discharge speed of the spiral flow or to increase the thermal insulation effect to reduce the discharge volume of the spiral flow, the gas is introduced into the diversion groove 311 through the first end of the gas guide tee 314, and the gas is used to blow the adjustment ring 312 to make the adjustment ring 312 slide, thereby controlling the blocking range of the adjustment ring 312 on the guide hole 313, so that the thickness of the outer annular heat energy changes, reducing the thermal insulation effect to increase the discharge speed of the spiral flow or increasing the thermal insulation effect to reduce the discharge volume of the spiral flow, and performing a slight pressure relief buffer for the built-in heat energy.

[0044] With the arrangement of the spring 315 , the adjustment ring 312 is in a stretched state after being pushed by the gas. When the adjustment ring 312 needs to be reset, the spring 315 can use its own deformation force to drive the adjustment ring 312 to move and reset.

[0045] Furthermore, the outside of the gas guide tee 314 is connected to an exhaust pipe, and electric valves are installed at both ends of the gas guide tee 314 and the exhaust pipe; through the setting of the electric valve, the opening and closing of the exhaust pipe and the gas guide tee 314 can be controlled, which is convenient for controlling the amount of gas entering the cavity 321 and the diversion groove 311.

[0046] When it is necessary to reset and adjust the first conical ring 320 and the adjustment ring 312, the corresponding solenoid valve can be opened, and then the first conical ring 320 and the adjustment ring 312 can be reset and moved under the influence of the deformation of the first conical ring 320 itself and the deformation force of the spring 315. At the same time, the exhaust pipe is used to discharge the gas in the cavity 321 and the diversion groove 311.

[0047] In order to better install the spiral blade 330, in some embodiments, a fixing ring 331 is also included. The cross tube 310 is sleeved on the fixing ring 331. The fixing ring 331 is fixedly connected to the cross tube 310 and is located on one side of the guide hole 313; the fixing ring 331 is sleeved on the spiral blade 330. The spiral blade 330 is rotatably connected to the fixing ring 331 and can rotate inside the fixing ring 331.

[0048] Combine Figure 3 、 Figure 4 、 Figure 6 and Figure 7 A second conical ring 332 is installed at one end of the fixing ring 331 close to the first conical ring 320, and the outward expansion surface of the second conical ring 332 faces the guide hole 313; the arrangement of the second conical ring 332 can guide a small amount of heat energy into the guide hole 313 along its outward expansion surface.

[0049] In order to improve the heat energy flow rate and mixing effect, in some embodiments, the heat pump body is connected to a heat exhaust pipe 110, and one end of the heat exhaust pipe 110 is connected to one end of the first tube body. Specifically, one end of the heat exhaust pipe 110 extends into the first tube body and is arranged in a spiral shape, so that two streams of heat energy can be introduced into the main tube 200 along the spiral flow manner, thereby improving the heat energy flow rate and mixing effect.

[0050] The heat pump body is also connected to a branch pipe 111. Heat energy at preset temperatures within the two heat pump bodies 100 can be directly channeled along the corresponding branch pipe 111, distributing and supplying heat energy to the corresponding areas. Both branch pipes 111 and heat exhaust pipe 110 are equipped with corresponding solenoid valves, which can control the opening and closing of these branches and heat exhaust pipes 110, as well as the amount of heat discharged. This allows users to control the amount of heat discharged through the solenoid valves on the heat exhaust pipes 110, thereby discharging heat energy in different proportions and achieving different temperatures after mixing. This reduces the need for frequency adjustment of the compressor built into the heat pump body 100, making it more convenient and reducing energy consumption for users.

[0051] Further, combined Figure 1 The two ends of the cross tube 310 are connected to the corresponding first tube body and second tube body through flanges. The flanges are used to quickly connect the cross tube 310 with the main tube 200, and it is convenient for subsequent users to disassemble the cross tube 310 and inspect and maintain its internal components.

[0052] It should be noted that, when the heat supply temperature changes significantly, the user can adjust the compressor frequencies in the two heat pump bodies 100 accordingly according to usage requirements.

[0053] Based on the above waste heat utilization heat pump heating flow distribution device, an embodiment of the present invention further provides a waste heat utilization heat pump heating flow distribution method, comprising:

[0054] S1. Introduce the recovered heat energy into the corresponding heat pump body. Through the heat exhaust pipe 110, the heat energy of different temperatures in the two heat pump bodies 100100 is introduced into the first pipe body of the main pipe 200 to be fully mixed to form heat energy of corresponding temperature.

[0055] Here, the heat energy of the preset temperature in the two heat pump bodies 100 (heat energy before mixing) can be directly extracted through the corresponding branch pipes 111 to distribute and supply the heat energy to the corresponding areas.

[0056] S2. The mixed heat energy is discharged into the second pipe body of the main pipe 200 through the loss reduction mechanism 300, and the processed heat energy is distributed to the corresponding heating area using the diversion tee 210.

[0057] Among them, in the loss reduction mechanism 300, heat energy is discharged along the transverse pipe 310. During the discharge process, the flowing heat energy will impact the spiral blade 330, causing it to rotate inside the fixed ring 331, slightly reducing the pressure of the heat energy while causing it to be discharged in a spiral shape into the second pipe body of the main pipe 200. At the same time, the second conical ring 332 is set to guide a small amount of heat energy into the inside of the diversion groove 311 along the guide hole 313, and then discharge it into the second pipe body along the diversion groove 311.

[0058] In the loss reduction mechanism 300, thermal energy forms an annular thermal energy layer, which is matched with the spiral thermal energy inside it. In this distribution and discharge method, the outer annular thermal energy layer wraps the internal spiral turbulent core, inhibits vortex shedding and flow separation, reduces pressure pulsation, and the outer annular thermal energy can form a temperature isolation layer, reducing heat loss from the pipe wall, reducing pressure loss, and reducing heat energy waste and poor heating effect.

[0059] Furthermore, users can also use an external air pump to introduce gas into the gas guide tee 314 according to usage requirements, and introduce the gas into the interior of the cavity 321 and the diverter groove 311 respectively. When the heat energy emission is low, gas can be injected into the cavity 321 to change the inner inclination amplitude, shorten the heat energy flow path, and thus enhance the subsequent heat energy emission flow rate; when there are special usage requirements due to the influence of ambient temperature, gas can be introduced into the diverter groove 311 to control the blocking range of the adjustment ring 312 on the guide hole 313, so that the thickness of the outer annular heat energy changes, reducing the thermal insulation effect to increase the emission speed of the spiral flow or improving the thermal insulation effect to reduce the emission of the spiral flow, and perform a slight pressure relief buffer for the built-in heat energy.

[0060] Furthermore, the user can introduce heat energy of different temperatures from the two heat pump bodies 100 into the main pipe 200 through the heat exhaust pipe 110. Since the end of the heat exhaust pipe 110 close to the main pipe 200 is spirally arranged, the two streams of heat energy can be introduced into the main pipe 200 along a spiral flow manner, thereby improving the heat energy flow rate and mixing effect.

[0061] The heat energy of the preset temperature in the two heat pump bodies 100 can be directly exported along the corresponding branch pipes 111 to distribute and supply heat energy to the corresponding areas; the corresponding solenoid valves are set to control the opening and closing and discharge amount of the branch pipes 111 and the heat exhaust pipe 110, so that the user can control the discharge amount of heat energy through the solenoid valve on the heat exhaust pipe 110, thereby utilizing different proportions of heat energy discharge to make the mixed heat energy reach different temperatures, reducing the frequency adjustment operation of the built-in compressor of the heat pump body 100, making it more convenient and reducing the user's labor. The entire device can reduce excessive pressure loss and severe temperature drop in the process of heat energy distribution, reduce heat energy waste and poor heating effect, and at the same time, can perform mixed ratio regulation according to the heat energy of the required temperature, reduce the frequency adjustment of the heat pump compressor, reduce user labor and adjustment errors, reduce labor costs, and be more practical.

[0062] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. A heat pump heating flow distribution device for waste heat utilization, characterized in that: It comprises a heat pump body and a main pipe connected to the heat pump body, wherein the main pipe is connected to a loss reduction mechanism; The loss reduction mechanism includes a transverse tube and a spiral blade, the transverse tube is sleeved on the spiral blade, and the spiral blade is located in the middle of the transverse tube; a first conical ring is provided at one end of the transverse tube; a guide hole is opened on the inner wall of the transverse tube, and a diversion groove is opened in the transverse tube along the length direction, and the guide hole is connected to the diversion groove.

2. The heat pump heating flow distribution device for waste heat utilization according to claim 1, characterized in that: A cavity is provided in the first conical ring, an adjusting ring and a spring are provided in the diverter groove, the spring is provided on the adjusting ring, and the adjusting ring is slidably connected to the diverter groove.

3. The heat pump heating flow distribution device for waste heat utilization according to claim 1, characterized in that: It also includes a fixing ring, the transverse tube is sleeved on the fixing ring, the fixing ring is sleeved on the spiral blade, and the spiral blade is rotatably connected to the fixing ring.

4. The heat pump heating flow distribution device for waste heat utilization according to claim 3, characterized in that: A second conical ring is provided at one end of the fixing ring, and an outwardly expanded surface of the second conical ring faces the guide hole.

5. The heat pump heating flow distribution device for waste heat utilization according to claim 1, characterized in that: The heat pump body is provided with a heat exhaust pipe, one end of which is spirally arranged and communicated with the main pipe.

6. The heat pump heating flow distribution device for waste heat utilization according to claim 5, characterized in that: The heat exhaust pipe is connected with a branch pipe.

7. The heat pump heating flow distribution device for waste heat utilization according to claim 1, characterized in that: It also includes an air-guiding tee, a first end of which is connected to the diverter groove, a second end of which is connected to the interior of the first conical ring, and a third end of which is used to connect to the air pump.

8. The heat pump heating flow distribution device for waste heat utilization according to claim 1, characterized in that: The air guiding tee is connected with an exhaust pipe.

9. The heat pump heating flow distribution device for waste heat utilization according to claim 1, characterized in that: The first tapered ring is made of perfluoroether rubber.

10. A heat pump heating flow distribution method for waste heat utilization, characterized in that: include: The recovered heat energy is introduced into the corresponding heat pump body and mixed, and the mixed heat energy is discharged to the main pipe through the loss reduction mechanism for heat energy distribution; Among them, in the loss reduction mechanism, the mixed heat energy impacts the spiral blades to make them rotate, forming spiral flow heat energy; part of the mixed heat energy flows into the diversion groove along the guide hole, forming an outer layer of annular heat energy.

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