Solar coating vacuum tube heating system of heat exchange station

Abstract

The utility model provides a heat exchange station solar coating vacuum tube heating system, which comprises a plurality of solar panels and a first heat exchange plate, an internal circulation pipeline is communicated among the plurality of solar panels, and a temperature sensor, a circulating pump and a first valve are sequentially arranged on the internal circulation pipeline along the water flow direction. An outer circulation pipeline is arranged between the inner circulation pipeline and the first heat exchange plate, the outer circulation pipeline comprises a water inlet pipe and a water outlet pipe which are communicated with the first heat exchange plate, one end of the water inlet pipe is communicated with the inner circulation pipeline and is located between the first valve and the circulation pump, and the other end of the water outlet pipe is located between the second valve and the circulation pump. One end of the water outlet pipe communicates with the inner circulation pipeline and is located on the side, away from the circulation pump, of the first valve, and a second valve is arranged on the water outlet pipe. According to the utility model, the solar panel is used for heating a medium, and meanwhile, heat exchange is carried out on water in the secondary net through the first heat exchange plate, so that the heat supply pressure of a large-scale thermal power plant is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating systems, in particular to a heating system for solar coated vacuum tubes in a heat exchange station. Background Art

[0002] In winter, it is extremely cold in the northern regions, and heating is necessary to ensure normal life and work. The heating system includes a heat source, a heating pipeline network, a heat exchange station and heat users. The main function of the heat exchange station is to transfer the high-temperature heat of the high-temperature hot water or steam in the primary network generated by the thermal power plant to the hot water in the secondary network for supply to users. However, with the continuous increase in coal prices in recent years, relying solely on the heating of large thermal power plants has led to problems such as insufficient heat supply capacity of the heat source, lack of flexibility, excessively high heating costs, too rapid growth of heat load, and excessive carbon emissions. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a heating system for solar coated vacuum tubes in a heat exchange station to solve the problems existing in the prior art, such as relying solely on the heating of large thermal power plants, resulting in insufficient heat supply capacity of the heat source, lack of flexibility, excessively high heating costs, too rapid growth of heat load, and excessive carbon emissions.

[0004] To solve the above problems, the utility model adopts the following technical solution. A heating system for solar coated vacuum tubes in a heat exchange station is used to assist the original heating system of the thermal power plant to heat the water in the secondary network. It includes a plurality of solar panels and a first heat exchange plate. An internal circulation pipeline is connected in communication between the plurality of solar panels. A temperature sensor, a circulation pump and a first valve are sequentially arranged on the internal circulation pipeline along the water flow direction. An external circulation pipeline is arranged between the internal circulation pipeline and the first heat exchange plate. The external circulation pipeline includes a water inlet pipe and a water outlet pipe respectively connected in communication with the first heat exchange plate. One end of the water inlet pipe is connected in communication with the internal circulation pipeline and is located between the first valve and the circulation pump. One end of the water outlet pipe is connected in communication with the internal circulation pipeline and is located on the side of the first valve away from the circulation pump. A second valve is arranged on the water outlet pipe.

[0005] Further, the solar panel includes a support plate and a plurality of solar coated vacuum tubes fixedly arranged on the top surface of the support plate. A supporting assembly for driving the support plate to tilt according to the illumination direction is arranged below the support plate.

[0006] Further, the supporting and connecting component includes a bottom plate, a first connecting rod rotatably connected to one end of the bottom plate in the length direction, a second connecting rod slidably connected to the other end of the bottom plate in the length direction, and a supporting rod disposed between the bottom plate and the supporting plate. One end of the supporting plate is rotatably connected to the first connecting rod, the bottom end of the supporting rod is rotatably connected to the second connecting rod, the top end of the supporting rod extends obliquely upward in a direction close to the first connecting rod, and is rotatably connected to the supporting plate. A power unit for driving the second connecting rod to slide in a direction close to or away from the first connecting rod is further provided on the bottom plate.

[0007] Further, the power unit includes a first motor fixed on the bottom plate, a slider and a screw sleeved on the second connecting rod. One end of the screw is fixedly connected to the output end of the first motor, the other end of the screw passes through the slider and extends in a direction close to the first connecting rod, and the screw is threadedly connected to the slider.

[0008] Further, sliding rails are respectively fixed on both sides of the bottom plate in the width direction, and both ends of the second connecting rod are respectively slidably connected in the corresponding sliding rails.

[0009] Further, a third connecting rod is rotatably connected to the bottom surface of the supporting plate, and the top end of the supporting rod is rotatably connected to the third connecting rod.

[0010] Further, there are two supporting rods, and the two supporting rods are respectively located on both axial sides of the second connecting rod.

[0011] Further, both the first valve and the second valve are solenoid valves.

[0012] Further, a controller is further included, and the controller is electrically connected to the temperature sensor, the first valve, the second valve and the circulation pump respectively.

[0013] Further, the secondary network includes a water inlet end and a water outlet end, and reversing valves for switching the water flow direction in the secondary network are respectively provided on the water inlet end and the water outlet end.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. By arranging a plurality of solar panels, a first heat exchange plate, a temperature sensor, a circulation pump, a first valve, an internal circulation pipeline, an external circulation pipeline and a second valve, the medium heated by solar energy is heated, and at the same time, the water in the secondary network is heat-exchanged through the first heat exchange plate, so as to relieve the heating pressure of large thermal power plants. At the same time, the solar energy is reasonably and effectively converted into heat energy and applied to daily heating, so that the heat energy can be saved. In traditional heating, coal is used as the carrier of heat, and saving heat is equivalent to being able to save energy, reduce emissions and reduce energy consumption, and at the same time reduce carbon emissions.

[0016] 2. By setting up the supporting component to timely adjust the angle of the solar coated vacuum tube relative to the sun, the sunlight can directly irradiate the solar coated vacuum tube, thereby increasing the utilization rate of solar energy and reducing the heating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0018] Figure 1 It is a schematic installation structure diagram of the heat exchange station solar coated vacuum tube heating system of the present invention;

[0019] Figure 2 It is a flow chart of the heat exchange station solar coated vacuum tube heating system of the present invention;

[0020] Figure 3 It is a three-dimensional view of one side of the solar device of the present invention;

[0021] Figure 4 It is a three-dimensional view of the other side of the solar device of the present invention.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS

[0023] 1. Solar panel; 2. Support plate; 21. Second fixing block; 22. Third fixing block; 3. Solar coated vacuum tube; 4. Supporting component; 41. Bottom plate; 411. First fixing block; 412. Slide groove; 42. First connecting rod; 43. Second connecting rod; 44. Support rod; 5. Power part; 51. First motor; 52. Slide block; 53. Screw rod; 6. Slide rail; 7. Third connecting rod. SPECIFIC EMBODIMENTS

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0025] Please refer to Figure 1 Figure 2As shown in the figure, a heat exchange station solar coated vacuum tube heating system is used to assist the original thermal power plant heating system to heat the water in the secondary network. That is, by setting up the heat exchange station solar coated vacuum tube heating system, solar energy is used to heat the water in the secondary network, so as to avoid problems such as insufficient heat supply capacity, lack of flexibility, too high heat supply cost, too rapid growth of heat load, and excessive carbon emissions caused by relying solely on the heat supply of large thermal power plants.

[0026] In this embodiment, the secondary network includes an inlet end and an outlet end. On the inlet end and the outlet end, there are respectively provided reversing valves for switching the water flow direction in the secondary network. During implementation, when the medium (such as water or oil) in the heat exchange station solar coated vacuum tube heating system reaches the preset temperature, the reversing valve is switched. At this time, the water in the secondary network flows to the heat exchange station solar coated vacuum tube heating system for heat exchange. When the medium temperature in the heat exchange station solar coated vacuum tube heating system is lower than the preset minimum temperature, the water in the secondary network pipeline is connected to the thermal power plant heating heat exchanger plate in the thermal power plant heating system through the reversing valve, so as to relieve the heating pressure of the thermal power plant and achieve energy conservation.

[0027] By setting up the heat exchange station solar coated vacuum tube heating system, the heating pressure of large thermal power plants can be relieved. At the same time, solar energy can be reasonably and effectively converted into heat energy and applied to daily heating, so that energy conservation can be achieved and carbon emissions can be reduced.

[0028] As Figure 2 shown in the figure, in this embodiment, the heat exchange station solar coated vacuum tube heating system includes a plurality of solar panels 1 and a first heat exchanger plate. The first heat exchanger plate is a plate heat exchanger in the prior art and will not be elaborated here. An internal circulation pipeline is connected between the plurality of solar panels 1 to uniformly circulate and heat the medium in the plurality of solar panels 1. Among them, a temperature sensor, a circulation pump, and a first valve are sequentially arranged on the internal circulation pipeline along the water flow direction. The temperature sensor is used to detect the temperature of the medium in the internal circulation pipeline, the circulation pump is used to drive the medium in the internal circulation pipeline to circulate and heat between the plurality of solar panels 1, and the first valve is used to disconnect the internal circulation pipeline.

[0029] An external circulation pipeline is arranged between the internal circulation pipeline and the first heat exchanger plate. The external circulation pipeline includes a water inlet pipe and a water outlet pipe respectively connected to the first heat exchanger plate. One end of the water inlet pipe is connected to the internal circulation pipeline and is located between the first valve and the circulation pump. One end of the water outlet pipe is connected to the internal circulation pipeline and is located on the side of the first valve away from the circulation pump. A second valve is arranged on the water outlet pipe. In this embodiment, both the first valve and the second valve are solenoid valves to facilitate remote control of the opening and closing of the first valve and the second valve.

[0030] During implementation, when the temperature sensor senses that the medium in the internal circulation pipeline has not reached the preset temperature, the first valve is in the open state and the second valve is in the closed state. At this time, the medium in the multiple solar panels 1 circulates and is heated along the internal circulation pipeline. When the temperature sensor senses that the medium in the internal circulation pipeline has reached the preset temperature, the first valve is closed and the second valve is opened simultaneously. At this time, the medium in the internal circulation pipeline flows into the first heat exchange plate along the water inlet pipe of the external circulation pipeline, and then flows back to the internal circulation pipeline on the side of the first valve far from the circulation pump through the water outlet pipe, that is, the medium in the internal circulation pipeline will circulate through the water inlet pipe, the first heat exchange plate, the water outlet pipe, and the multiple solar panels 1 in this way. At the same time, the water in the secondary network will also flow into the first heat exchange plate through the reversing valve for heat exchange. In this way, the heating pressure of large thermal power plants can be alleviated. Preferably, the temperature sensor, the first valve, the second valve, and the circulation pump are electrically connected to the controller respectively to achieve automatic operation. Among them, the controller is a PLC controller in the prior art and will not be elaborated here.

[0031] Please refer to Figure 3 and Figure 4 As shown in the figure, in this embodiment, the solar panel 1 includes a support plate 2 and a plurality of solar coating vacuum tubes 3 fixedly arranged on the top surface of the support plate 2. Preferably, the support plate 2 is composed of 50 solar coating vacuum tubes 3 with a diameter of φ58 * 1.8m, which are responsible for absorbing solar heat and heating the transmission medium. Preferably, a supporting component 4 for driving the support plate 2 to tilt according to the light direction is provided below the support plate 2. By adjusting the angle of the solar coating vacuum tubes 3 relative to the sun through the supporting component 4, sunlight can directly irradiate the solar coating vacuum tubes 3, thereby increasing the utilization rate of solar energy.

[0032] The supporting component 4 includes a bottom plate 41, a first connecting rod 42, a second connecting rod 43, a third connecting rod 7, a support rod 44, and a power unit 5. The bottom plate 41 is a rectangular plate. The first connecting rod 42 is rotatably connected to one end of the length direction of the top surface of the bottom plate 41. One end of the support plate 2 is rotatably connected to the first connecting rod 42 to enable the support plate 2 to rotate along the axis of the first connecting rod 42. Specifically, two first fixing blocks 411 are fixedly arranged on both sides in the width direction of the bottom plate 41. The axial two ends of the first connecting rod 42 are rotatably connected to the two first fixing blocks 411. On the bottom surface of the support plate 2 and on both sides in the width direction of the support plate 2, two second fixing blocks 21 are fixed. The two second fixing blocks 21 are rotatably connected to the first connecting rod 42, that is, the rotation connection between the support plate 2 and the bottom plate 41 is realized through the two first fixing blocks 411, the two second fixing blocks 21, and the first connecting rod 42.

[0033] The second connecting rod 43 is arranged on the top surface of the bottom plate 41 and is slidably connected to the other end of the bottom plate 41 in the length direction. The sliding direction of the second connecting rod 43 is parallel to the length direction of the bottom plate 41, that is, the second connecting rod 43 can slide in a direction close to or away from the first connecting rod 42. Preferably, slide rails 6 are fixedly arranged on both sides of the bottom plate 41 in the width direction, and both ends of the second connecting rod 43 are slidably connected in the corresponding slide rails 6, that is, the sliding connection between the second connecting rod 43 and the bottom plate 41 is realized by arranging the slide rails 6.

[0034] The support rod 44 is obliquely arranged between the bottom plate 41 and the support plate 2. The bottom end of the support rod 44 is rotatably connected to the second connecting rod 43, and the top end of the support rod 44 extends obliquely upward in a direction close to the first connecting rod 42 and is rotatably connected to the support plate 2. In this embodiment, a third connecting rod 7 is rotatably connected to the bottom surface of the support plate 2, and the top end of the support rod 44 is rotatably connected to the third connecting rod 7. Specifically, on the bottom surface of the support plate 2, third fixing blocks 22 are fixedly arranged on both sides of the support plate 2 in the width direction, and the axial two ends of the third connecting rod 7 are rotatably connected to the two third fixing blocks 22, thereby realizing the rotational connection between the third connecting rod 7 and the support plate 2. It should be noted that the third connecting rod 7 is generally located in the middle of the support plate 2 in the length direction. Preferably, there are two support rods 44, and the two support rods 44 are respectively located on both sides of the second connecting rod 43 in the axial direction to increase the stability of the supporting component 4.

[0035] The power unit 5 is arranged at one end of the bottom plate 41 away from the first connecting rod 42 and is used to drive the second connecting rod 43 to slide in a direction close to or away from the first connecting rod 42. Specifically, the power unit 5 includes a first motor 51 fixedly arranged on the bottom plate 41, a slider 52 sleeved on the second connecting rod 43, and a screw rod 53. One end of the screw rod 53 is fixedly connected to the output end of the first motor 51, and the other end of the screw rod 53 passes through the slider 52 and extends in a direction close to the first connecting rod, and the screw rod 53 is screwed to the slider 52. Preferably, a chute 412 is arranged on the top surface of the bottom plate 41, and the bottom of the slider 52 is slidably connected in the chute 412 to make the operation of the supporting component 4 more stable.

[0036] One end of the support plate 2 rotatably connected to the bottom plate 41 is defined as the bottom end of the support plate 2, and the other end is defined as the top end of the support plate 2. During implementation, the first motor 51 is started. The first motor 51 drives the screw rod 53 to rotate. The screw rod 53 drives the slider 52 to move in a direction closer to or farther from the first connecting rod 42. Further, the slider 52 drives the bottom end of the second connecting rod 43 and the support rod 44 to move in a direction closer to or farther from the first connecting rod 42. At this time, the support rod 44 rotates from an inclined state to a state tending to be vertical, so as to push the top end of the support plate 2 to move in a direction closer to or farther from the bottom plate 41, that is, the support plate 2 is driven to tilt through the combined action of the first motor 51, the screw rod 53, the slider 52, the support rod 44, the first connecting rod 42, and the second connecting rod 43, so that the solar coating vacuum tube 3 on the top surface of the support plate 2 faces the sun, thereby increasing the utilization rate of solar energy, accelerating the increase of the temperature of the medium in the internal circulation pipeline, alleviating the heating pressure of large thermal power plants, and realizing the conservation of thermal energy.

[0037] When the temperature sensor senses that the medium in the internal circulation pipeline reaches the preset temperature during the specific implementation of the present utility model, the flow direction is changed through the reversing valve. At this time, the water in the secondary network flows to the first heat exchange plate, and then the second valve is started, and at the same time the first valve is closed, so that the medium in the internal circulation pipeline flows into the first heat exchange plate along the water inlet pipe of the external circulation pipeline to exchange heat with the water in the secondary network, so as to alleviate the heating pressure of large thermal power plants. At the same time, the relative angle of the solar coating vacuum tube 3 with respect to the sun is adjusted in time through the supporting component 4, so that the sunlight can directly irradiate the solar coating vacuum tube 3, thereby increasing the utilization rate of solar energy and reducing the heating cost.

[0038] The above description is only the preferred embodiment of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

Claims

1. A solar-coated vacuum tube heating system for heat exchange stations, used to assist the original thermal power plant heating system, to heat the water in the secondary network, characterized in that: The invention comprises a plurality of solar panels (1) and a first heat exchange plate, wherein an internal circulation pipeline is provided between the plurality of solar panels (1), a temperature sensor, a circulation pump and a first valve are provided on the internal circulation pipeline in sequence along the water flow direction, an external circulation pipeline is provided between the internal circulation pipeline and the first heat exchange plate, the external circulation pipe comprises a water inlet pipe and a water outlet pipe respectively connected to the first heat exchange plate, one end of the water inlet pipe is connected to the internal circulation pipeline and is located between the first valve and the circulation pump, one end of the water outlet pipe is connected to the internal circulation pipeline and is located on a side of the first valve away from the circulation pump, and a second valve is provided on the water outlet pipe.

2. The solar coating vacuum tube heating system for heat exchange station according to claim 1 is characterized in that: The solar panel (1) comprises a support plate (2) and a plurality of solar coating vacuum tubes (3) fixedly mounted on the top surface of the support plate (2); a support assembly (4) for driving the support plate (2) to tilt according to the direction of light is provided below the support plate (2).

3. The solar coating vacuum tube heating system for heat exchange station according to claim 2 is characterized in that: The supporting assembly (4) comprises a base plate (41), a first connecting rod (42) rotatably connected to one end of the base plate (41) in the length direction, a second connecting rod (43) slidably connected to the other end of the base plate (41) in the length direction, and a support rod (44) arranged between the base plate (41) and the supporting plate (2), one end of the supporting plate (2) is rotatably connected to the first connecting rod (42), the bottom end of the support rod (44) is rotatably connected to the second connecting rod (43), the top end of the support rod (44) extends upwardly in an inclined direction close to the first connecting rod (42) and is rotatably connected to the supporting plate (2), and a power unit (5) for driving the second connecting rod (43) to slide in a direction close to the first connecting rod (42) or away from the first connecting rod (42) is also provided on the base plate (41).

4. The heat exchange station solar coating vacuum tube heating system according to claim 3 is characterized in that: The power unit (5) comprises a first motor (51) fixedly mounted on the base plate (41), a slider (52) and a screw rod (53) sleeved on the second connecting rod (43), one end of the screw rod (53) being fixedly connected to an output end of the first motor (51), the other end of the screw rod (53) passing through the slider (52) and extending in a direction close to the first connecting rod (42), and the screw rod (53) is screwed to the slider (52).

5. The solar coating vacuum tube heating system for heat exchange station according to claim 3 is characterized in that: Slide rails (6) are fixedly disposed on both sides of the bottom plate (41) in the width direction, and both ends of the second connecting rod (43) are slidably connected to the corresponding slide rails (6).

6. The solar coating vacuum tube heating system for heat exchange station according to claim 3 is characterized in that: The bottom surface of the support plate (2) is rotatably connected to a third connecting rod (7), and the top end of the support rod (44) is rotatably connected to the third connecting rod (7).

7. The solar coating vacuum tube heating system for heat exchange station according to claim 3 is characterized in that: There are two support rods (44), and the two support rods (44) are respectively located on two axial sides of the second connecting rod (43).

8. The solar coating vacuum tube heating system for heat exchange station according to claim 1 is characterized in that: The first valve and the second valve are both solenoid valves.

9. The solar coating vacuum tube heating system for heat exchange station according to claim 1, characterized in that: The device also includes a controller, which is electrically connected to the temperature sensor, the first valve, the second valve and the circulation pump respectively.

10. The solar coating vacuum tube heating system for heat exchange station according to claim 1, characterized in that: The secondary network includes a water inlet and a water outlet, and the water inlet and the water outlet are respectively provided with a reversing valve for switching the direction of water flow in the secondary network.

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