Heat pump and boiler mixed heating system based on temperature monitoring and regulation

Abstract

The invention discloses a heat pump and boiler mixed heating system based on temperature monitoring and regulation, and relates to the technical field of heating, the mixed heating system comprises a heat pump, a boiler, a control cabinet, a heating towel rack and a heating radiator, the heat pump and the boiler are communicated with the control cabinet, and a programmable controller is arranged in the control cabinet; the programmable controller is used for controlling opening and closing of the heat pump and the boiler, the control cabinet is communicated with the heating towel rack and the heating radiator and used for supplying hot water to the heating towel rack and the heating radiator, and a mixing mechanism is arranged in the control cabinet and used for mixing the hot water supplied by the heat pump and the boiler. Hot water is output from the heat pump and flows back to the heat pump after being subjected to heat release through the heating towel rack and the heating radiator, output and backflow in the process are sensed by the temperature sensor, and when the output temperature is lower than the set lowest temperature and the heat pump cannot meet requirements, the programmable controller in the control cabinet starts the boiler to convey heat. The mixing mechanism mixes hot water supplied by the heat pump and the boiler.

Description

Technical Field

[0001] The invention relates to the technical field of heating, and in particular to a heat pump and boiler hybrid heating system based on temperature monitoring and control. Background Art

[0002] At present, the vast majority of thermal systems use fossil fuels. The installed boilers include independent and centralized systems, most of which are old equipment with low efficiency, high energy consumption and high emissions. In order to reduce the energy efficiency of buildings, the heating and cooling systems in the buildings are often replaced or modified, and smart technologies are used to improve the energy efficiency potential of buildings and improve the living environment.

[0003] The hybrid heating system is a new hybrid solution for homes that currently have a boiler installed. An energy-saving heat pump can be installed without removing the existing combination boiler or adding a hot water storage tank. However, the existing hybrid system cannot mix the hot water from the heat pump and the boiler well due to the temperature difference between the two, resulting in unstable output hot water temperature. Summary of the invention

[0004] The object of the present invention is to provide a heat pump and boiler hybrid heating system based on temperature monitoring and control to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the hybrid heating system comprises a heat pump, a boiler, a control cabinet, a heated towel rack and a radiator, the heat pump and the boiler are connected to the control cabinet, the control cabinet has a built-in programmable controller, the programmable controller is used to control the opening and closing of the heat pump and the boiler, the control cabinet is connected to the heated towel rack and the radiator, the control cabinet is used to supply hot water to the heated towel rack and the radiator, the control cabinet has a built-in mixing mechanism, and the mixing mechanism is used to mix the hot water supplied by the heat pump and the boiler.

[0006] The present invention works based on the following steps: hot water is output from the heat pump, and then flows back to the heat pump after releasing heat through the heated towel rack and the radiator. In this process, both the output and the return are sensed by temperature sensors. When the output temperature is lower than the set minimum temperature and the heat pump cannot meet the demand, the programmable controller in the control cabinet starts the boiler to deliver heat, and the hot water supplied by the heat pump and the boiler is mixed by the mixing mechanism. The mixed heating system will only start the boiler to deliver hot water for supplementary regulation when the heat delivered by the heat pump is insufficient.

[0007] Furthermore, the mixing mechanism includes a shell, an adjusting component, a spiral guide vane, a detection component and a compensation component. The shell is tightly connected to the control cabinet, and is provided with a first inlet, a second inlet and an adjusting chamber. The water outlet side of the adjusting chamber is sequentially arranged with a mixing section, a detection section and a compensation section along the flow direction of the water flow. The first inlet is connected to the output end of the heat pump, the second inlet is connected to the output end of the boiler, the first inlet and the second inlet are respectively connected to both sides of the adjusting chamber, the adjusting component is located in the adjusting chamber, the adjusting component is used to distribute the water intake of the first inlet and the second inlet, the spiral guide vane is located in the mixing section, the detection component is located in the detection section, the detection component is used to detect the temperature of the mixed hot water, the compensation component is located in the compensation section, and the compensation component is used to perform temperature compensation on the mixed hot water.

[0008] When the heat output of the heat pump is insufficient and the boiler is started for heating, the hot water with a lower temperature output by the heat pump flows into the regulating chamber from the first inlet, and the hot water with a higher temperature output by the boiler flows into the regulating chamber from the second inlet. After being distributed by the regulating component, they flow into the mixing section together. After the two water flows pass through the spiral guide vane in the mixing section, they are mixed with each other under the action of the impact force to form hot water with the same temperature. The detection component in the detection section can detect the temperature of the mixed hot water, and use this to control the opening size of the regulating component, thereby controlling the water inlet of the first inlet and the second inlet, so as to adjust the temperature of the mixed hot water, so that the temperature of the mixed hot water remains stable; however, when the heat output of the heat pump is insufficient, because the hot water flows continuously in the mixing mechanism, even if the regulating speed of the regulating component is very fast, some hot water with substandard temperature will still flow over the detection section into the compensation section, and the hot water with a higher temperature at the second inlet is introduced into the compensation section through the compensation component to dynamically compensate for the hot water with substandard temperature, thereby maintaining the uniformity of the hot water temperature in the mixing mechanism.

[0009] Furthermore, the detection component includes a temperature sensing block, a connecting seat, a movable part, a first electromagnet, a repelling magnet, a pressure regulating piston and a connecting pipe. The temperature sensing block is tightly connected to the connecting seat, the connecting seat is tightly connected to the detection section, a connecting seat is provided with a connecting groove, a detection groove and a pressure regulating chamber, a temperature sensing chamber is provided in the temperature sensing block, the temperature sensing chamber is connected to the connecting groove, the movable part is located in the detection groove, the movable part is used to detect the temperature change in the temperature sensing chamber, the first electromagnet is tightly connected to the connecting seat, the first electromagnet is electrically connected to the movable part, the repelling magnet and the first electromagnet are arranged opposite to each other, the repelling magnet and the pressure regulating piston are tightly connected, the opposite ends of the repelling magnet and the first electromagnet are the same magnetic poles, hydraulic oil is filled in the pressure regulating chamber, and the pressure regulating chamber is connected to the adjustment component through the connecting pipe.

[0010] The connecting seat is fixed on the detection section to provide an installation basis for the detection component. When the heat output by the heat pump is insufficient, the temperature of the hot water flowing to the detection section will become lower, and the temperature sensing block is arranged in the detection section. The hot water will flow through the surface of the temperature sensing block. Under the action of heat transfer, the gas temperature in the temperature sensing chamber will decrease. Under the action of thermal expansion and contraction, the volume of the gas in the temperature sensing chamber will decrease, thereby driving the movable parts to move, and the action of the movable parts is used to control the current transmitted to the first electromagnet. When the temperature of the hot water decreases, the current transmitted to the first electromagnet by the movable parts increases, and the magnetic force of the first electromagnet becomes larger. Under the action of the magnetic force, the repelling magnet will be pushed upward, thereby driving the pressure regulating piston to move upward along the pressure regulating chamber, and the hydraulic oil in the pressure regulating chamber is pressed into the regulating component through the connecting pipe, thereby driving the regulating component to move.

[0011] Furthermore, the temperature sensing block is streamlined.

[0012] In order to reduce the resistance to water flow, the temperature sensing block is set to be streamlined.

[0013] Furthermore, the adjustment component includes a rotating shaft, a rotating plate, a half gear, a rack, a protective shell and a return spring. The rotating shaft is rotatably connected to the shell, the rotating plate is tightly connected to the rotating shaft, the half gear is tightly connected to the rotating shaft, the rack is meshed with the half gear, the protective shell is tightly connected to the shell, a movable groove is provided in the protective shell, the rack is slidably connected to the movable groove, one end of the movable groove is connected to the connecting pipe, the return spring is located in the movable groove at one end away from the connecting pipe, one end of the return spring is tightly connected to the inner wall of the movable groove, and the other end of the return spring is tightly connected to the rack.

[0014] When the heat output of the heat pump is insufficient, the hydraulic oil in the pressure regulating chamber will be pressed into the movable groove by the pressure regulating piston through the connecting pipe, thereby driving the rack to slide along the movable groove to the other side, and the return spring is compressed. Driven by the rack, the half gear will also deflect to one side, thereby driving the rotating shaft to rotate along the shell, and then driving the rotating plate on the rotating shaft to deflect toward the first inlet in the regulating chamber, that is, the opening of the first inlet in the regulating chamber is reduced, and the opening of the second inlet is increased, thereby increasing the amount of hot water input by the boiler, thereby increasing the temperature of the mixed hot water, that is, realizing automatic adjustment of the position of the rotating plate according to the temperature of the hot water, that is, realizing automatic adjustment of the amount of hot water output by the heat pump and the boiler, and improving the uniformity of the temperature of the mixed hot water.

[0015] Furthermore, the movable parts include a piston rod, a resistor rod and a conductive ring. The piston rod is slidably connected to the connecting groove, the resistor rod is firmly connected to the inner wall of the detection groove, one end of the conductive ring is firmly connected to the piston rod, the other end of the conductive ring is slidably connected to the resistor rod, the conductive ring is externally connected to a power supply, and the resistor rod is electrically connected to the first electromagnet.

[0016] When the heat output of the heat pump is insufficient, the gas temperature in the temperature sensing chamber will decrease. Under the action of thermal expansion and contraction, the gas volume in the temperature sensing chamber will decrease, thereby driving the piston rod in the connecting groove connected to the temperature sensing chamber to move downward, and also driving the conductive ring connected to the piston rod to move downward along the resistance rod, that is, the distance the current flows through the resistance rod will be shortened, the relative resistance will be reduced, and the current transmitted to the first electromagnet will be greater, that is, the lower the temperature of the hot water in the detection section, the greater the current transmitted to the first electromagnet by the movable component.

[0017] Furthermore, the compensation component includes a fixed seat, a slider, a support spring, a second electromagnet and a drainage tube. The fixed seat is tightly connected to the compensation section. A compensation chamber, a connecting port, an annular flow channel and a water outlet are provided in the fixed seat. The slider is slidably connected to the compensation chamber. The slider is made of ferromagnetic material. One end of the support spring is tightly connected to the slider, and the other end of the support spring is tightly connected to the second electromagnet. The second electromagnet is tightly connected to the inner wall of the compensation chamber. The second electromagnet is electrically connected to the resistance rod. One end of the compensation chamber away from the second electromagnet is connected to the drainage tube. The drainage tube is connected to the second inlet. The connecting port is connected to the annular flow channel. The water outlet is connected to the annular flow channel. Several water outlets are arranged along the circumference of the annular flow channel, and several water outlets face the inside of the compensation section.

[0018] During compensation: the connecting port is connected with the compensation cavity.

[0019] Because the second electromagnet is electrically connected to the resistor rod, and the lower the hot water temperature in the detection section, the lower the relative resistance of the resistor rod. Therefore, when the heat output of the heat pump is insufficient, the current transmitted to the second electromagnet by the resistor rod is greater, the magnetic force of the second electromagnet is greater, the attraction of the second electromagnet to the slider is greater, the distance the slider slides along the compensation cavity toward the second electromagnet is longer, the opening between the connecting port and the compensation cavity is greater, the amount of hot water flowing into the compensation section is greater, the supporting spring is compressed, and the hot water output from the boiler in the second inlet will flow into the compensation cavity through the drainage pipe, and then flow into the compensation section through the connecting port, the annular flow channel and the water outlet in turn, and dynamically compensate for the hot water in the compensation section that does not meet the temperature standard, that is, it realizes automatic adjustment of the amount of hot water compensated for the compensation section according to the temperature of the hot water, thereby ensuring the uniformity of the hot water temperature at various locations in the mixing mechanism.

[0020] Furthermore, a plurality of water outlets are arranged obliquely.

[0021] The inclined water outlet can promote the mixing speed of the compensating hot water and the hot water that does not meet the standards in the compensation section.

[0022] Furthermore, the control cabinet is provided with a plurality of interfaces, which are respectively connected to the heat pump, the boiler, the heated towel rack and the radiator, and a plurality of interfaces are used for water supply and return.

[0023] The arrangement of several interfaces on the control cabinet is prior art and will not be described in detail here. They are used to connect heat pumps, boilers, heated towel racks and radiators to achieve hot water circulation.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. When the heat output of the heat pump is insufficient, the hydraulic oil in the pressure regulating chamber will be pressed into the movable groove by the pressure regulating piston through the connecting pipe, thereby driving the rack to slide along the movable groove to the other side, and the return spring is compressed. Driven by the rack, the half gear will also deflect to one side, thereby driving the rotating shaft to rotate along the shell, and then driving the rotating plate on the rotating shaft to deflect toward the first inlet in the regulating chamber, that is, the opening of the first inlet in the regulating chamber is reduced, and the opening of the second inlet is increased, thereby increasing the amount of hot water input by the boiler, thereby increasing the temperature of the mixed hot water, that is, realizing the automatic adjustment of the position of the rotating plate according to the temperature of the hot water, that is, realizing the automatic adjustment of the amount of hot water output by the heat pump and the boiler, and improving the uniformity of the temperature of the mixed hot water.

[0026] 2. When the heat output of the heat pump is insufficient, the greater the current transmitted to the second electromagnet by the resistor rod, the greater the magnetic force of the second electromagnet, the greater the attraction of the second electromagnet to the slider, the longer the distance the slider slides along the compensation chamber toward the second electromagnet, the greater the opening between the connecting port and the compensation chamber, the greater the amount of hot water flowing into the compensation section, the support spring is compressed, and the hot water output by the boiler in the second inlet will flow into the compensation chamber through the drainage pipe, and then flow into the compensation section through the connecting port, the annular flow channel and the water outlet in turn, and dynamically compensate for the hot water in the compensation section that does not meet the temperature standard, that is, it realizes automatic adjustment of the amount of hot water compensated for the compensation section according to the temperature of the hot water, thereby ensuring the uniformity of the hot water temperature at various locations in the mixing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 for Figure 1 A local enlarged view of point A;

[0029] Figure 3 It is a schematic diagram of the detection component of the present invention;

[0030] Figure 4 for Figure 3 A partial enlarged view of point B;

[0031] Figure 5 It is a schematic diagram of the mixing mechanism of the present invention;

[0032] Figure 6 for Figure 5 A partial enlarged view of point C;

[0033] Figure 7 It is a partial cross-sectional view of the present invention;

[0034] Figure 8 for Figure 7 A partial enlarged view of point D;

[0035] Fig. 9 is a schematic diagram of a compensation component of the present invention;

[0036] Fig.10 It is the circuit diagram of the movable parts of the present invention.

[0037] In the figure: 1-heat pump, 2-boiler, 3-control cabinet, 4-heated towel rack and radiator, 5-mixing mechanism, 51-shell, 511-first inlet, 512-second inlet, 513-adjusting chamber, 514-mixing section, 515-detection section, 516-compensation section, 52-adjusting component, 521-rotating shaft, 522-rotating plate, 523-half gear, 524-rack, 525-protective shell, 5251-movable groove, 526-reset spring, 53-spiral guide vane, 54-detection component, 541-temperature sensing block, 5411-temperature sensing chamber , 542-connecting seat, 5421-connecting groove, 5422-detection groove, 5423-pressure regulating chamber, 543-moving part, 544-first electromagnet, 545-repelling magnet, 546-pressure regulating piston, 547-connecting pipe, 5431-piston rod, 5432-resistance rod, 5433-conductive ring, 55-compensation component, 551-fixed seat, 5511-compensation chamber, 5512-connecting port, 5513-annular flow channel, 5514-water outlet, 552-slider, 553-support spring, 554-second electromagnet, 555-drainage pipe. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0039] Example: Figure 1-Figure 10As shown, the present invention provides a technical solution of a heat pump and boiler hybrid heating system based on temperature monitoring and control. The hybrid heating system includes a heat pump 1, a boiler 2, a control cabinet 3, a heated towel rack and a radiator 4. The heat pump 1 and the boiler 2 are connected to the control cabinet 3. The control cabinet 3 has a built-in programmable controller. The programmable controller is used to control the opening and closing of the heat pump 1 and the boiler 2. The control cabinet 3 is connected to the heated towel rack and the radiator 4. The control cabinet 3 is used to supply hot water to the heated towel rack and the radiator 4. The control cabinet 3 has a built-in mixing mechanism 5. The mixing mechanism 5 is used to mix the hot water supplied by the heat pump 1 and the boiler 2.

[0040] The present invention works based on the following steps: hot water is output from the heat pump 1, and then flows back to the heat pump 1 after releasing heat through the heated towel rack and the radiator 4. In this process, both the output and the return are sensed by temperature sensors. When the output temperature is lower than the set minimum temperature and the heat pump 1 cannot meet the demand, the programmable controller in the control cabinet 3 starts the boiler 2 to transport heat, and the hot water supplied by the heat pump 1 and the boiler 2 is mixed by the mixing mechanism 5. The mixed heating system will only start the boiler 2 to transport hot water for supplementary regulation when the heat pump 1 does not transport enough heat.

[0041] The mixing mechanism 5 includes a shell 51, an adjusting component 52, a spiral guide vane 53, a detection component 54 and a compensation component 55. The shell 51 is fastened to the control cabinet 3. The shell 51 is provided with a first inlet 511, a second inlet 512 and an adjusting chamber 513. The water outlet side of the adjusting chamber 513 is sequentially arranged with a mixing section 514, a detection section 515 and a compensation section 516 along the flow direction of the water flow. The first inlet 511 is connected to the output end of the heat pump 1, the second inlet 512 is connected to the output end of the boiler 2, the first inlet 511 and the second inlet 512 are respectively connected to the two sides of the adjusting chamber 513, the adjusting component 52 is located in the adjusting chamber 513, and the adjusting component 52 is used to distribute the water intake of the first inlet 511 and the second inlet 512. The spiral guide vane 53 is located in the mixing section 514, the detection component 54 is located in the detection section 515, and the detection component 54 is used to detect the temperature of the mixed hot water. The compensation component 55 is located in the compensation section 516, and the compensation component 55 is used to perform temperature compensation on the mixed hot water.

[0042] When the heat output of the heat pump 1 is insufficient and the boiler 2 is started to supply heat, the hot water with a lower temperature output by the heat pump 1 flows into the regulating chamber 513 from the first inlet 511, and the hot water with a higher temperature output by the boiler 2 flows into the regulating chamber 513 from the second inlet 512. After being distributed by the regulating component 52, they flow into the mixing section 514 together. After the two water flows pass through the spiral guide vane 53 in the mixing section 514, they are mixed with each other under the action of the impact force to form hot water with the same temperature. The detection component 54 in the detection section 515 can detect the temperature of the mixed hot water, and use it to control the opening size of the regulating component 52, so as to The water inlet of the first inlet 511 and the second inlet 512 is controlled to adjust the temperature of the mixed hot water so that the temperature of the mixed hot water remains stable. However, when the heat output of the heat pump 1 is insufficient, because the hot water is constantly flowing in the mixing mechanism 5, even if the adjustment speed of the adjustment component 52 is very fast, some hot water with substandard temperature will still pass through the detection section 515 and flow into the compensation section 516. The hot water with higher temperature at the second inlet 512 is introduced into the compensation section 516 through the compensation component 55 to dynamically compensate for the hot water with substandard temperature, thereby maintaining the uniformity of the hot water temperature in the mixing mechanism 5.

[0043] The detection assembly 54 includes a temperature sensing block 541, a connecting seat 542, a movable part 543, a first electromagnet 544, a repelling magnet 545, a pressure regulating piston 546 and a connecting pipe 547. The temperature sensing block 541 is tightly connected to the connecting seat 542, and the connecting seat 542 is tightly connected to the detection section 515. The connecting seat 542 is provided with a connecting groove 5421, a detection groove 5422 and a pressure regulating cavity 5423. The temperature sensing block 541 is provided with a temperature sensing chamber 5411, and the temperature sensing chamber 5411 is connected to the connecting groove 5421. The movable part 543 is located at the detection section 515. In the measuring groove 5422, the movable component 543 is used to detect the temperature change in the temperature sensing chamber 5411, the first electromagnet 544 is tightly connected to the connecting seat 542, the first electromagnet 544 is electrically connected to the movable component 543, the repelling magnet 545 and the first electromagnet 544 are arranged opposite to each other, the repelling magnet 545 and the pressure regulating piston 546 are tightly connected, the facing ends of the repelling magnet 545 and the first electromagnet 544 are the same magnetic poles, hydraulic oil is filled in the pressure regulating chamber 5423, and the pressure regulating chamber 5423 is connected to the regulating component 52 through the connecting pipe 547.

[0044] The connection seat 542 is fixed on the detection section 515 to provide an installation basis for the detection assembly 54. When the heat output by the heat pump 1 is insufficient, the temperature of the hot water flowing to the detection section 515 will become low, and the temperature sensing block 541 is arranged in the detection section 515. The hot water will flow through the surface of the temperature sensing block 541. Under the action of heat transfer, the gas temperature of the temperature sensing chamber 5411 will decrease. Under the action of thermal expansion and contraction, the volume of the gas in the temperature sensing chamber 5411 will decrease, thereby driving the movable part 543 to move, and passing The magnitude of the current transmitted to the first electromagnet 544 is controlled by the action of the movable component 543. When the temperature of the hot water decreases, the current transmitted to the first electromagnet 544 by the movable component 543 increases, and the magnetic force of the first electromagnet 544 increases. Under the action of the magnetic force, the repelling magnet 545 is pushed to move upward, thereby driving the pressure regulating piston 546 to move upward along the pressure regulating chamber 5423, and pressing the hydraulic oil in the pressure regulating chamber 5423 into the regulating component 52 through the connecting pipe 547, thereby driving the regulating component 52 to move.

[0045] The temperature sensing block 541 is streamlined.

[0046] In order to reduce the resistance to water flow, the temperature sensing block 541 is designed to be streamlined.

[0047] The adjusting assembly 52 includes a rotating shaft 521, a rotating plate 522, a half gear 523, a rack 524, a protective shell 525 and a return spring 526. The rotating shaft 521 is rotatably connected to the shell 51, the rotating plate 522 is firmly connected to the rotating shaft 521, the half gear 523 is firmly connected to the rotating shaft 521, the rack 524 is meshed with the half gear 523, the protective shell 525 is firmly connected to the shell 51, a movable groove 5251 is provided in the protective shell 525, the rack 524 is slidably connected to the movable groove 5251, one end of the movable groove 5251 is communicated with the connecting pipe 547, the return spring 526 is located in the movable groove 5251 at one end away from the connecting pipe 547, one end of the return spring 526 is firmly connected to the inner wall of the movable groove 5251, and the other end of the return spring 526 is firmly connected to the rack 524.

[0048] When the heat output by the heat pump 1 is insufficient, the hydraulic oil in the pressure regulating chamber 5423 will be pressed into the movable groove 5251 by the pressure regulating piston 546 through the connecting pipe 547, thereby driving the rack 524 to slide along the movable groove 5251 to the other side, and the return spring 526 is compressed. Driven by the rack 524, the half gear 523 will also deflect to one side, thereby driving the rotating shaft 521 to rotate along the shell 51, and then driving the rotating plate 522 on the rotating shaft 521 to deflect toward the first inlet 511 in the regulating chamber 513, that is, the opening of the first inlet 511 in the regulating chamber 513 is reduced, and the opening of the second inlet 512 is increased, thereby increasing the amount of hot water input by the boiler 2, thereby increasing the temperature of the mixed hot water, that is, realizing the automatic adjustment of the position of the rotating plate 522 according to the temperature of the hot water, that is, realizing the automatic adjustment of the amount of hot water output by the heat pump 1 and the boiler 2, and improving the uniformity of the temperature of the mixed hot water.

[0049] The movable component 543 includes a piston rod 5431, a resistor rod 5432 and a conductive ring 5433. The piston rod 5431 is slidably connected to the connecting groove 5421, the resistor rod 5432 is firmly connected to the inner wall of the detection groove 5422, one end of the conductive ring 5433 is firmly connected to the piston rod 5431, and the other end of the conductive ring 5433 is slidably connected to the resistor rod 5432. The conductive ring 5433 is externally connected to a power supply, and the resistor rod 5432 is electrically connected to the first electromagnet 544.

[0050] When the heat output by the heat pump 1 is insufficient, the gas temperature in the temperature sensing chamber 5411 will decrease. Under the effect of thermal expansion and contraction, the gas volume in the temperature sensing chamber 5411 will decrease, thereby driving the piston rod 5431 in the connecting groove 5421 connected to the temperature sensing chamber 5411 to move downward, and also driving the conductive ring 5433 connected to the piston rod 5431 to move downward along the resistor rod 5432, that is, the distance that the current flows through the resistor rod 5432 will be shortened, the relative resistance will be reduced, and the current transmitted to the first electromagnet 544 will be greater, that is, the lower the temperature of the hot water in the detection section 515, the greater the current transmitted to the first electromagnet 544 by the movable component 543.

[0051] The compensation component 55 includes a fixed seat 551, a slider 552, a support spring 553, a second electromagnet 554 and a drainage tube 555. The fixed seat 551 is fastened to the compensation section 516. The fixed seat 551 is provided with a compensation cavity 5511, a connecting port 5512, an annular flow channel 5513 and a water outlet 5514. The slider 552 is slidably connected to the compensation cavity 5511. The slider 552 is made of ferromagnetic material. One end of the support spring 553 is fastened to the slider 552, and the other end of the support spring 553 is fastened to the second electromagnet 554. The second electromagnet 554 is connected to the inner wall of the compensation chamber 5511, the second electromagnet 554 is electrically connected to the resistor rod 5432, the end of the compensation chamber 5511 away from the second electromagnet 554 is connected to the drainage pipe 555, the drainage pipe 555 is connected to the second inlet 512, the communication port 5512 is connected to the annular flow channel 5513, the water outlet 5514 is connected to the annular flow channel 5513, and a plurality of water outlets 5514 are arranged along the circumference of the annular flow channel 5513, and the plurality of water outlets 5514 face the inside of the compensation section 516;

[0052] During compensation: the communication port 5512 is connected to the compensation chamber 5511 .

[0053] Because the second electromagnet 554 is electrically connected to the resistor rod 5432, and the lower the temperature of the hot water in the detection section 515, the lower the relative resistance of the resistor rod 5432. Therefore, when the heat output of the heat pump 1 is insufficient, the current transmitted from the resistor rod 5432 to the second electromagnet 554 is greater, the magnetic force of the second electromagnet 554 is greater, the attraction of the second electromagnet 554 to the slider 552 is greater, and the sliding distance of the slider 552 along the compensation cavity 5511 toward the second electromagnet 554 is longer, and the opening between the connecting port 5512 and the compensation cavity 5511 is larger. The greater the temperature, the greater the amount of hot water flowing into the compensation section 516. The support spring 553 is compressed, and the hot water output by the boiler in the second inlet 512 will flow into the compensation chamber 5511 through the drainage pipe 555, and then flow into the compensation section 516 through the connecting port 5512, the annular flow channel 5513 and the water outlet 5514 in sequence, and dynamically compensate for the hot water in the compensation section 516 that does not meet the temperature standard, that is, it realizes automatic adjustment of the amount of hot water compensated for the compensation section 516 according to the temperature of the hot water, thereby ensuring the uniformity of the hot water temperature at various locations in the mixing mechanism 5.

[0054] The plurality of water outlets 5514 are arranged obliquely.

[0055] The inclined water outlet 5514 can promote the mixing speed of the compensating hot water and the substandard hot water in the compensating section 516 .

[0056] The control cabinet 3 is provided with a plurality of interfaces, which are respectively connected with the heat pump 1, the boiler 2, the heated towel rack and the radiator 4, and the plurality of interfaces are used for water supply and return.

[0057] The arrangement of several interfaces on the control cabinet 3 is prior art and will not be described in detail here. They are used to connect the heat pump 1, the boiler 2, the heated towel rack and the radiator 4 to achieve the circulation of hot water.

[0058] Working principle of the present invention: when the heat output by the heat pump 1 is insufficient, the temperature of the hot water flowing to the detection section 515 will become low, and the low-temperature hot water will flow through the surface of the temperature sensing block 541. Under the action of heat transfer, the gas temperature of the temperature sensing chamber 5411 will decrease. Under the action of thermal expansion and contraction, the volume of the gas in the temperature sensing chamber 5411 will decrease, thereby driving the piston rod 5431 in the connecting groove 5421 connected to the temperature sensing chamber 5411 to move downward, and also driving the conductive ring 5433 connected to the piston rod 5431 to move downward along the resistor rod 5432, that is, the current flows. The distance on the resistor rod 5432 will be shortened, the relative resistance will be reduced, the current transmitted to the first electromagnet 544 and the second electromagnet 554 will be greater, the magnetic force of the first electromagnet 544 will become greater, and under the action of the magnetic force, the repelling magnet 545 will be pushed upward, thereby driving the pressure regulating piston 546 to move upward along the pressure regulating chamber 5423, and the hydraulic oil in the pressure regulating chamber 5423 is pressed into the movable groove 5251 through the connecting pipe 547, thereby driving the rack 524 to slide along the movable groove 5251 to the other side, and the return spring 526 is compressed. Driven by the rack 524, The half gear 523 will also deflect to one side, thereby driving the rotating shaft 521 to rotate along the shell 51, and then driving the rotating plate 522 on the rotating shaft 521 to deflect in the direction of the first inlet 511 in the adjusting chamber 513, that is, the opening of the first inlet 511 in the adjusting chamber 513 is reduced, and the opening of the second inlet 512 is increased, thereby increasing the amount of hot water input by the boiler 2, thereby increasing the temperature of the mixed hot water, that is, realizing automatic adjustment of the position of the rotating plate 522 according to the temperature of the hot water; the greater the magnetic force of the second electromagnet 554, the more the second electromagnet 554 attracts the slider 552 The greater the gravitational force is, the longer the distance that the slider 552 slides along the compensation chamber 5511 toward the second electromagnet 554 side, the larger the opening between the connecting port 5512 and the compensation chamber 5511, and the greater the amount of hot water flowing into the compensation section 516. The support spring 553 is compressed, and the hot water output from the boiler in the second inlet 512 will flow into the compensation chamber 5511 through the drainage pipe 555, and then flow into the compensation section 516 through the connecting port 5512, the annular flow channel 5513 and the water outlet 5514 in turn, thereby dynamically compensating the hot water in the compensation section 516 that does not meet the temperature standard.

[0059] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A heat pump and boiler hybrid heating system based on temperature monitoring and control, characterized in that: The hybrid heating system comprises a heat pump (1), a boiler (2), a control cabinet (3), a heated towel rack and a radiator (4); the heat pump (1) and the boiler (2) are connected to the control cabinet (3); the control cabinet (3) has a built-in programmable controller, the programmable controller is used to control the opening and closing of the heat pump (1) and the boiler (2); the control cabinet (3) is connected to the heated towel rack and the radiator (4); the control cabinet (3) is used to supply hot water to the heated towel rack and the radiator (4); the control cabinet (3) has a built-in mixing mechanism (5), the mixing mechanism (5) is used to mix the hot water supplied by the heat pump (1) and the boiler (2).

2. A heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 1, characterized in that: The mixing mechanism (5) comprises a shell (51), an adjustment component (52), a spiral guide plate (53), a detection component (54) and a compensation component (55); the shell (51) is tightly connected to the control cabinet (3); a first inlet (511), a second inlet (512) and an adjustment chamber (513) are provided on the shell (51); a mixing section (514), a detection section (515) and a compensation section (516) are arranged in sequence on the water outlet side of the adjustment chamber (513) along the flow direction of the water flow; the first inlet (511) is connected to the output end of the heat pump (1); the second inlet (512) is connected to the outlet end of the boiler (2); The output ends are connected, the first inlet (511) and the second inlet (512) are respectively connected to the two sides of the regulating chamber (513), the regulating component (52) is located in the regulating chamber (513), and the regulating component (52) is used to distribute the water intake of the first inlet (511) and the second inlet (512), the spiral guide plate (53) is located in the mixing section (514), the detection component (54) is located in the detection section (515), and the detection component (54) is used to detect the temperature of the mixed hot water, and the compensation component (55) is located in the compensation section (516), and the compensation component (55) is used to perform temperature compensation on the mixed hot water.

3. A heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 2, characterized in that: The detection assembly (54) comprises a temperature sensing block (541), a connecting seat (542), a movable part (543), a first electromagnet (544), a repelling magnet (545), a pressure regulating piston (546) and a connecting pipe (547); the temperature sensing block (541) is tightly connected to the connecting seat (542); the connecting seat (542) is tightly connected to the detection section (515); a connecting seat (542) is provided with a connecting groove (5421), a detection groove (5422) and a pressure regulating cavity (5423); a temperature sensing chamber (5411) is provided in the temperature sensing block (541); the temperature sensing chamber (5411) is connected to the connecting groove (5421); the movable part (547) is connected to the connecting groove (5421); 543) is located in the detection groove (5422), the movable part (543) is used to detect the temperature change in the temperature sensing chamber (5411), the first electromagnet (544) is tightly connected to the connecting seat (542), the first electromagnet (544) is electrically connected to the movable part (543), the repulsive magnet (545) and the first electromagnet (544) are arranged opposite to each other, the repulsive magnet (545) and the pressure regulating piston (546) are tightly connected, the facing ends of the repulsive magnet (545) and the first electromagnet (544) are the same magnetic poles, the pressure regulating chamber (5423) is filled with hydraulic oil, and the pressure regulating chamber (5423) is connected to the regulating component (52) through the connecting pipe (547).

4. A heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 3, characterized in that: The temperature sensing block (541) is streamlined.

5. A heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 3, characterized in that: The adjusting assembly (52) comprises a rotating shaft (521), a rotating plate (522), a half gear (523), a rack (524), a protective shell (525) and a return spring (526); the rotating shaft (521) is rotatably connected to the housing (51); the rotating plate (522) is firmly connected to the rotating shaft (521); the half gear (523) is firmly connected to the rotating shaft (521); the rack (524) is meshed with the half gear (523); the protective shell (525) is firmly connected to the housing (51); 51) is fastened and connected, a movable groove (5251) is provided in the protective shell (525), the rack (524) is slidably connected to the movable groove (5251), one end of the movable groove (5251) is connected to the connecting pipe (547), the return spring (526) is located in the movable groove (5251) away from the end of the connecting pipe (547), one end of the return spring (526) is fastened and connected to the inner wall of the movable groove (5251), and the other end of the return spring (526) is fastened and connected to the rack (524).

6. A heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 3, characterized in that: The movable component (543) includes a piston rod (5431), a resistor rod (5432) and a conductive ring (5433); the piston rod (5431) is slidably connected to the connecting groove (5421); the resistor rod (5432) is firmly connected to the inner wall of the detection groove (5422); one end of the conductive ring (5433) is firmly connected to the piston rod (5431); the other end of the conductive ring (5433) is slidably connected to the resistor rod (5432); the conductive ring (5433) is externally connected to a power supply; and the resistor rod (5432) is electrically connected to the first electromagnet (544).

7. A heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 6, characterized in that: The compensation component (55) comprises a fixed seat (551), a slider (552), a support spring (553), a second electromagnet (554) and a drainage pipe (555); the fixed seat (551) is tightly connected to the compensation section (516); a compensation cavity (5511), a communication port (5512), an annular flow channel (5513) and a water outlet (5514) are provided in the fixed seat (551); the slider (552) is slidably connected to the compensation cavity (5511); the slider (552) is made of ferromagnetic material; one end of the support spring (553) is tightly connected to the slider (552); the other end of the support spring (553) is tightly connected to the second electromagnet (554); The second electromagnet (554) is tightly connected to the inner wall of the compensation chamber (5511), the second electromagnet (554) is electrically connected to the resistance rod (5432), the end of the compensation chamber (5511) away from the second electromagnet (554) is connected to the drainage pipe (555), the drainage pipe (555) is connected to the second inlet (512), the communication port (5512) is connected to the annular flow channel (5513), the water outlet (5514) is connected to the annular flow channel (5513), a plurality of water outlets (5514) are arranged along the circumference of the annular flow channel (5513), and a plurality of the water outlets (5514) face the inside of the compensation section (516); During compensation: the communication port (5512) is connected to the compensation cavity (5511).

8. A heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 7, characterized in that: The plurality of water outlets (5514) are arranged obliquely.

9. The heat pump and boiler hybrid heating system based on temperature monitoring and control according to claim 1 is characterized in that: The control cabinet (3) is provided with a plurality of interfaces, and the plurality of interfaces are respectively connected to the heat pump (1), the boiler (2), the heated towel rack and the radiator (4), and the plurality of interfaces are used for water supply and water return.

Images