A heat exchange device for solar thermal power generation components

Abstract

The present invention relates to the technical field of combined heat and power generation, and specifically to a heat exchange device for a solar combined heat and power generation component, wherein the heat-conducting sleeve of the electric heating mechanism has spiral blades, and the spiral blades extend continuously to the two end portions of the heat-conducting sleeve. The adjusting sleeve is coaxially arranged with the heat-conducting sleeve and sleeved on the spiral blades, and the spiral blades are fitted with the inner wall of the adjusting sleeve, and the spiral blades and the adjusting sleeve are movably sealed. The inner wall of the adjusting sleeve has a matching block, and the matching block is fitted between two adjacent circles of blades of the spiral blade and is slidingly sealed with the two adjacent circles of blades of the spiral blade. The matching block is also fitted with and slidingly sealed with the circumferential wall of the heat-conducting sleeve. It can effectively improve the accuracy and stability of the heating temperature in the process of supplementing the heating with electric energy heating, improve the stability of the heating supplemented by electric energy, and improve the user experience.

Description

Technical Field

[0001] The invention relates to the technical field of combined heat and power generation, and in particular to a heat exchange device for a solar combined heat and power generation component. Background Art

[0002] When it comes to residential heating, combined heat and power (CHP) is a new generation of technology that can meet heating needs while also supplementing electricity to a certain extent. In combined heat and power, the sources of electricity are diverse. Based on the current pursuit of clean energy, combined heat and power technology based on solar energy is gaining more and more attention.

[0003] In the combined heat and power technology, electricity can also be used as a backup when thermal energy is insufficient, using part of the electricity for heating to supplement thermal energy. Combined heat and power effectively improves the stability and reliability of heat supply and reduces the risk of insufficient heat supply.

[0004] At present, when using electric energy for heating to supplement thermal energy, the problem of large fluctuations in heating temperature often occurs, which affects the user experience to a certain extent.

[0005] In view of this, this application is hereby filed. Summary of the invention

[0006] The purpose of the present invention is to provide a heat exchange device for a solar cogeneration component, which can effectively improve the accuracy and stability of the heating temperature in the process of supplementing the heating with electric energy, improve the stability of the heating supplemented by electric energy, and improve the user experience.

[0007] The embodiment of the present invention is achieved as follows:

[0008] A heat exchange device for a solar heat and power cogeneration component comprises an electric heating mechanism, an adjustment sleeve and a driving mechanism.

[0009] The electric heating mechanism includes a positioning column, a heating wire and a heat-conducting sleeve. The heating wire is arranged at one end of the positioning column, and the heat-conducting sleeve cover is arranged at the end of the positioning column. The heat-conducting sleeve is cylindrical, and the heating wire is encapsulated in the heat-conducting sleeve and extends along the length direction of the heat-conducting sleeve. The circumferential wall of the heat-conducting sleeve has spiral leaves, and the spiral leaves extend continuously to the two ends of the heat-conducting sleeve.

[0010] One end of the adjustment sleeve is closed by a sealing block, the inner diameter of the adjustment sleeve is adapted to the outer diameter of the spiral leaf, the adjustment sleeve and the heat conductive sleeve are coaxially arranged and sleeved on the spiral leaf, the spiral leaf is fitted with the inner wall of the adjustment sleeve, and there is an active sealing relationship between the spiral leaf and the inner wall of the adjustment sleeve.

[0011] The inner wall of the adjustment sleeve is fixedly connected with a matching block, and the matching block is located at one end of the adjustment sleeve away from the sealing block. Along the axial direction of the heat-conducting sleeve, the matching block fits between two adjacent circles of the spiral leaf and slides and seals with the two adjacent circles of the spiral leaf. The matching block also fits with the circumferential wall of the heat-conducting sleeve, and there is a sliding seal between the matching block and the circumferential wall of the heat-conducting sleeve. The matching block, the adjustment sleeve, the heat-conducting sleeve and the spiral leaf enclose a heat exchange cavity for the flow of heat-carrying medium.

[0012] An inlet pipe is arranged on the circumferential wall of the regulating sleeve, the inlet pipe is located on the side of the matching block close to the sealing block, and the inlet pipe is communicated with the heat exchange cavity. The sealing block is provided with an outlet pipe communicated with the heat exchange cavity.

[0013] The driving mechanism is in transmission cooperation with the adjusting sleeve to drive the adjusting sleeve to rotate, thereby adjusting the length of the heat-conducting sleeve entering the adjusting sleeve.

[0014] Furthermore, the heat exchange device for the solar heat and power cogeneration assembly also includes: a base, a positioning sleeve, a water supply part and a matching ring.

[0015] The electric heating mechanism is installed on the base, the positioning sleeve is coaxially arranged with the adjusting sleeve and is annularly arranged on the adjusting sleeve, and the positioning sleeve is connected to the base.

[0016] The water supply part is annular and hollow, and a notch is provided on the inner ring wall of the water supply part, and the notch continuously extends in a ring shape along its circumference. The matching ring is coaxially arranged with the water supply part, and the matching ring is matched in the notch. Along the circumference of the water supply part, the matching ring can be rotatably matched with the notch and is rotationally sealed with the water supply part.

[0017] The water supply part is arranged around the adjusting sleeve and coaxially with the adjusting sleeve, and the water supply part is matched in the positioning sleeve. Along the circumference of the adjusting sleeve, the water supply part and the positioning sleeve are fixedly matched. Along the axial direction of the adjusting sleeve, the water supply part and the positioning sleeve are slidably matched.

[0018] The water supply part is provided with a water inlet pipe communicating with its internal space. The inlet pipe is arranged along the radial direction of the adjustment sleeve and extends through the matching ring, and the inlet pipe is communicated with the internal space of the water supply part.

[0019] Furthermore, the driving mechanism is arranged on the water supply component.

[0020] Furthermore, the positioning column is cylindrical, and the outer diameter of the positioning column is equal to the outer diameter of the heat-conducting sleeve. The spiral blade extends to the outer wall of the positioning column. The electric heating mechanism is connected to the base through the positioning column.

[0021] The heat exchange device used for the solar thermal power cogeneration component also includes: a preheating sleeve, the inner diameter of the preheating sleeve is larger than the outer diameter of the spiral blade.

[0022] The preheating sleeve is coaxially arranged with the adjusting sleeve, and the preheating sleeve is located at the end of the adjusting sleeve away from the sealing block, and the preheating sleeve and the adjusting sleeve are rotatably connected via a rotating ring. A sealing ring is arranged at the end of the preheating sleeve away from the adjusting sleeve, and the outer ring wall of the sealing ring is in contact with and fixedly connected to the inner ring wall of the preheating sleeve. The sealing ring sleeve is arranged on the positioning column, and the inner ring wall of the sealing ring is in contact with the outer side wall of the positioning column. Along the axial direction of the positioning column, the sealing ring and the positioning column are slidably matched. Along the circumferential direction of the positioning column, the sealing ring and the positioning column are fixedly matched.

[0023] The preheating sleeve is a hollow structure, one side of the preheating sleeve is provided with an inlet pipe communicating with the internal space thereof, and the other side of the preheating sleeve is provided with an outlet pipe communicating with the internal space thereof.

[0024] The positioning sleeve and the base are fixedly connected by a connecting column, and the positioning sleeve and the base are spaced apart. The inlet pipe and the outlet pipe are led out through the gap between the positioning sleeve and the base. The outlet pipe is used to communicate with the inlet of the water storage tank, and the water inlet pipe is used to communicate with the outlet of the water storage tank.

[0025] Furthermore, the outlet pipe and the adjusting sleeve are coaxially arranged.

[0026] Furthermore, the matching block is extended along the spiral direction of the spiral blade. The matching block is a hollow structure. Along the spiral direction of the spiral blade, an end surface of the matching block close to the sealing block is provided with a suction port connected to its internal space, and a valve is provided at the inner end of the suction port. The heat exchange device for the solar cogeneration component also includes: an extraction component and a connecting pipe. The connecting pipe is used to connect the extraction component and the internal space of the matching block. The connecting pipe is a flexible pipe, and the connecting pipe has a control valve for controlling the opening and closing.

[0027] The beneficial effects of the technical solution of the embodiment of the present invention include:

[0028] During the operation of the heat exchange device for the solar heat and power cogeneration component provided by the embodiment of the present invention, the matching block is provided, and the matching block also plays a role of limiting. When the adjustment sleeve rotates, the matching block can move between two adjacent circles of the spiral blade along the spiral direction of the spiral blade, thereby realizing axial movement. In other words, because the matching block is provided, when the driving mechanism drives the adjustment sleeve to rotate, the adjustment sleeve can also move along the axial direction of the heat-conducting sleeve, thereby changing the length of the heat-conducting sleeve "extending" into the adjustment sleeve.

[0029] Through this design, the actual heating length of the heat-conducting sleeve in the adjusting sleeve can be adjusted, and the heating efficiency of the heat-carrying medium in the heat exchange cavity can be changed to achieve precise control of the temperature of the heat-carrying medium.

[0030] In general, the heat exchange device for the solar cogeneration component provided in the embodiment of the present invention can effectively improve the accuracy and stability of the heating temperature in the process of supplementing the heating with electric energy, improve the stability of the heating supplemented by electric energy, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A schematic diagram of the overall structure of a heat exchange device for a solar heat and power cogeneration assembly provided in an embodiment of the present invention (when the heat-conducting sleeve extends further into the adjustment sleeve);

[0033] Figure 2 for Figure 1 Structural diagram of the water supply part;

[0034] Figure 3 A schematic diagram of the overall structure of a heat exchange device for a solar heat and power cogeneration assembly provided in an embodiment of the present invention (when the heat-conducting sleeve extends less into the adjustment sleeve);

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment sleeve;

[0036] Figure 5 Schematic diagram of the internal structure of the adjustment sleeve;

[0037] Figure 6 Schematic diagram of the internal structure when a suction port is provided for the adjustment sleeve.

[0038] Description of reference numerals:

[0039] Positioning column 110; heat-conducting sleeve 120; spiral blade 130; adjusting sleeve 200; sealing block 210; matching block 220; suction port 221; inlet pipe 230; outlet pipe 240; heat exchange chamber 300; driving mechanism 400; base 500; positioning sleeve 510; connecting column 520; water supply part 600; matching ring 610; water inlet pipe 620; preheating sleeve 700; rotating ring 710; sealing ring 720; inlet pipe 730; outlet pipe 740. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In addition, the terms "parallel", "vertical", etc. do not mean that the components must be absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Please refer to Figure 1~Figure 5 This embodiment provides a heat exchange device for a solar heat and power cogeneration component, and the heat exchange device includes: an electric heating mechanism, an adjustment sleeve 200 and a driving mechanism 400.

[0046] The electric heating mechanism includes a positioning column 110 , an electric heating wire (not shown in the figure) and a heat-conducting sleeve 120 .

[0047] The heating wire is arranged at one end of the positioning column 110 and extends along the length direction of the positioning column 110, and the heat-conducting sleeve 120 is arranged at the end of the positioning column 110. The heat-conducting sleeve 120 is cylindrical, and the heat-conducting sleeve 120 is coaxially fixedly connected with the positioning column 110. The heating wire is encapsulated in the heat-conducting sleeve 120 and extends along the length direction of the heat-conducting sleeve 120.

[0048] The circumferential wall of the heat-conducting sleeve 120 has a spiral blade 130, and the spiral blade 130 continuously extends to both ends of the heat-conducting sleeve 120. The spiral blade 130 is a spiral blade 130 with a constant pitch.

[0049] One end of the adjustment sleeve 200 is closed by a sealing block 210, the inner diameter of the adjustment sleeve 200 is adapted to the outer diameter of the spiral leaf 130, the adjustment sleeve 200 is coaxially arranged with the heat conductive sleeve 120 and sleeved on the spiral leaf 130, the spiral leaf 130 is fitted with the inner wall of the adjustment sleeve 200, and there is an active sealing relationship between the spiral leaf 130 and the inner wall of the adjustment sleeve 200.

[0050] A matching block 220 is fixedly connected to the inner wall of the adjusting sleeve 200 . The matching block 220 is located at one end of the adjusting sleeve 200 away from the sealing block 210 .

[0051] Along the axial direction of the heat-conducting sleeve 120, the matching block 220 is fitted between two adjacent circles of the spiral blade 130, and is slidably sealed with the two adjacent circles of the spiral blade 130. The matching block 220 is also fitted with the circumferential wall of the heat-conducting sleeve 120, and the matching block 220 and the circumferential wall of the heat-conducting sleeve 120 are slidably sealed.

[0052] The matching block 220, the adjustment sleeve 200, the heat-conducting sleeve 120 and the spiral blades 130 enclose a heat exchange cavity 300 for the heat-carrying medium to flow, and the spiral blades 130 form a spiral flow channel in the area between the heat-conducting sleeve 120 and the adjustment sleeve 200. The heat-carrying medium includes but is not limited to water.

[0053] The circumferential wall of the adjustment sleeve 200 is provided with an inlet pipe 230, which is located on the side of the matching block 220 close to the sealing block 210 and communicates with the heat exchange cavity 300. The sealing block 210 is provided with an outlet pipe 240 communicated with the heat exchange cavity 300.

[0054] The spiral blade 130 , the adjustment sleeve 200 , the matching block 220 , the positioning column 110 , the inlet pipe 230 , and the outlet pipe 240 are all made of heat-insulating materials.

[0055] When the heat medium is sent into the heat exchange chamber 300 through the inlet pipe 230, since the matching block 220 has sealed the mouth of the adjustment sleeve 200 away from the sealing block 210, the heat medium can only flow along the spiral flow channel constructed by the spiral blade 130, thereby contacting the heat-conducting sleeve 120 to exchange heat (absorb heat). Finally, the heat medium flows to the end of the adjustment sleeve 200 close to the sealing block 210 and is discharged through the outlet pipe 240.

[0056] The driving mechanism 400 is in transmission cooperation with the adjusting sleeve 200 to drive the adjusting sleeve 200 to rotate. Since the matching block 220 is provided, the matching block 220 also plays a role of limiting. When the adjusting sleeve 200 rotates, the matching block 220 can move along the spiral direction of the spiral leaf 130 between two adjacent circles of the spiral leaf 130, thereby realizing axial movement. In other words, just because the matching block 220 is provided, when the driving mechanism 400 drives the adjusting sleeve 200 to rotate, the adjusting sleeve 200 can also move along the axial direction of the heat-conducting sleeve 120, thereby changing the length of the heat-conducting sleeve 120 "extending" into the adjusting sleeve 200.

[0057] Through this design, the actual heating length of the heat-conducting sleeve 120 in the adjustment sleeve 200 can be adjusted, and the heating efficiency of the heat-carrying medium in the heat exchange cavity 300 can be changed to achieve precise control of the temperature of the heat-carrying medium.

[0058] Specifically, for heat carriers with different starting temperatures, when the user sets a certain temperature for the heat carrier, the heat exchange device needs to heat the heat carriers with different starting temperatures to the corresponding use temperature. For heat carriers with different starting temperatures, the amount of heat required to heat them is different.

[0059] For electric heating mechanisms, the temperature rises quickly, but the temperature drop is relatively insensitive. If the initial temperature of the heat carrier is x°C at the beginning, the electric heating mechanism will heat it to the use temperature. But the subsequent initial temperature of the heat carrier suddenly changes to y°C, y>x. In order to ensure that the heat carrier can be accurately maintained at the use temperature after heating, the heating amount needs to be reduced. Although this can be achieved by reducing the heating power of the electric heating mechanism, the greater the difference between y and x, and the closer y is to the use temperature, the worse the regulation effect will be by reducing the heating power of the electric heating mechanism.

[0060] Through the design of the present application, when encountering the above situation, the driving mechanism 400 can be used to drive the adjustment sleeve 200 to change the length of the heat-conducting sleeve 120 "extending" into the adjustment sleeve 200, thereby changing the contact area between the heat-carrying medium and the heat-conducting sleeve 120, helping to more accurately control the temperature.

[0061] At the same time, when the length of the heat-conducting sleeve 120 "extending" into the adjusting sleeve 200 is changed by driving the adjusting sleeve 200, the matching block 220 can also clean the surface of the spiral blade 130 and the heat-conducting sleeve 120 to reduce the adhesion of scale or other stains, thereby facilitating the long-term cleaning of the spiral blade 130 and the heat-conducting sleeve 120.

[0062] In general, the heat exchange device for the solar cogeneration component provided in this embodiment can effectively improve the accuracy and stability of the heating temperature in the process of supplementing the heating with electric energy, improve the stability of the heating supplemented by electric energy, and improve the user experience.

[0063] In this embodiment, the heat exchange device for the solar heat and power cogeneration assembly further includes: a base 500 , a positioning sleeve 510 , a water supply member 600 and a matching ring 610 .

[0064] The electric heating mechanism is installed on the base 500, the positioning sleeve 510 is coaxially arranged with the adjustment sleeve 200 and annularly arranged on the adjustment sleeve 200, and the positioning sleeve 510 is connected to the base 500. The inner diameter of the positioning sleeve 510 is greater than the outer diameter of the adjustment sleeve 200.

[0065] The water supply member 600 is annular and hollow. A notch is formed on the inner ring wall of the water supply member 600. The notch extends continuously in a ring shape along its circumference. The matching ring 610 is coaxially arranged with the water supply member 600. The matching ring 610 is matched in the notch. Along the circumference of the water supply member 600, the matching ring 610 can be rotatably matched with the notch and close the notch. The matching ring 610 is rotatably sealed with the water supply member 600.

[0066] The water supply member 600 is annularly arranged on the adjustment sleeve 200 and is coaxially arranged with the adjustment sleeve 200. The inner diameter of the water supply member 600 is larger than the outer diameter of the adjustment sleeve 200, and the water supply member 600 is matched inside the positioning sleeve 510. Along the circumferential direction of the adjustment sleeve 200, the water supply member 600 is fixedly matched with the positioning sleeve 510. Along the axial direction of the adjustment sleeve 200, the water supply member 600 is slidably matched with the positioning sleeve 510.

[0067] The water supply member 600 is provided with a water inlet pipe 620 communicating with the inner space thereof.

[0068] The inlet pipe 230 is disposed along the radial direction of the adjustment sleeve 200 and extends through the matching ring 610 . The inlet pipe 230 is communicated with the inner space of the water supply member 600 .

[0069] With this design, the water supply member 600 can be used to supply water to the heat exchange chamber 300 , while preventing the water inlet pipe 620 from being entangled.

[0070] The driving mechanism 400 is arranged on the water supply member 600, which improves the stability and reliability of the transmission.

[0071] The water inlet pipe 620, the water supply member 600 and the matching ring 610 are all made of heat insulating materials.

[0072] Furthermore, the positioning column 110 is cylindrical, and the outer diameter of the positioning column 110 is equal to the outer diameter of the heat-conducting sleeve 120. The spiral blade 130 extends to the outer wall of the positioning column 110. The electric heating mechanism is connected to the base 500 through the positioning column 110.

[0073] The heat exchange device for the solar heat and power cogeneration assembly further includes: a preheating sleeve 700 , the inner diameter of the preheating sleeve 700 is greater than the outer diameter of the spiral blade 130 .

[0074] The preheating sleeve 700 is coaxially arranged with the adjusting sleeve 200 . The preheating sleeve 700 is located at one end of the adjusting sleeve 200 away from the sealing block 210 . The preheating sleeve 700 and the adjusting sleeve 200 are rotatably connected via a rotating ring 710 , so that the adjusting sleeve 200 can rotate relative to the preheating sleeve 700 .

[0075] A sealing ring 720 is provided at one end of the preheating sleeve 700 away from the adjustment sleeve 200. The outer ring wall of the sealing ring 720 is attached to and fixedly connected with the inner ring wall of the preheating sleeve 700. The sealing ring 720 is sleeved on the positioning column 110. The inner ring wall of the sealing ring 720 is attached to the outer wall of the positioning column 110. The sealing ring 720 and the positioning column 110 are slidably matched along the axial direction of the positioning column 110. The sealing ring 720 and the positioning column 110 are fixedly matched along the circumferential direction of the positioning column 110.

[0076] The rotating ring 710 and the sealing ring 720 are both made of heat insulating material.

[0077] The preheating sleeve 700 is a hollow structure, made of heat-conducting material, and except for the inner ring wall, the other side walls of the preheating sleeve 700 are heat-insulated. One side of the preheating sleeve 700 is provided with an inlet pipe 730 communicating with its internal space, and the other side is provided with an outlet pipe 740 communicating with its internal space.

[0078] The positioning sleeve 510 and the base 500 are fixedly connected by a connecting column 520, and the positioning sleeve 510 and the base 500 are spaced apart. The inlet pipe 730 and the outlet pipe 740 are led out through the gap between the positioning sleeve 510 and the base 500. The outlet pipe 740 is used to communicate with the inlet of the water storage tank, and the water inlet pipe 620 is used to communicate with the outlet of the water storage tank. The inlet pipe 730 is used to communicate with a water source.

[0079] The water tank is used to store heat-carrying medium. The water tank can be used in conjunction with a photothermal component to heat the water in the water tank using solar energy, but is not limited thereto. The water tank can also be used in conjunction with other components that can be used to heat the water therein.

[0080] The water tank is insulated.

[0081] The water inlet pipe 620 is provided with a temperature sensor for detecting the temperature of the water in the water inlet pipe 620. Based on the detection result, the heating power of the electric heating mechanism and the length (heat exchange area) of the heat conductive sleeve 120 "extending" into the adjustment sleeve 200 can be determined according to the water temperature (starting temperature) in the water inlet pipe 620, the user's usage temperature, flow rate and other data, and the heating power and heat exchange area of ​​the electric heating mechanism can be adjusted in real time according to the real-time changes in the water temperature in the water inlet pipe 620, thereby ensuring that the water temperature delivered to the user remains near the usage temperature.

[0082] Through the above design, when adjusting the length (heat exchange area) of the heat-conducting sleeve 120 "extending" into the adjusting sleeve 200, if the length of the heat-conducting sleeve 120 extending into the adjusting sleeve 200 is small, the preheating sleeve 700 can surround the portion of the heat-conducting sleeve 120 outside the adjusting sleeve 200, and use this portion of heat to preheat the water entering the water storage tank, so as to avoid heat waste and ensure that the heat of the electric heating mechanism is fully utilized.

[0083] In this embodiment, the outlet pipe 240 is coaxially arranged with the adjustment sleeve 200. In this case, when the outlet pipe 240 is connected to the external pipe fitting, a rotary seal connection mode can be adopted.

[0084] In other embodiments of the present invention, please refer to Figure 6 , the matching block 220 can be set to extend along the spiral direction of the spiral leaf 130. In this case, the matching block 220 is set as a hollow structure. Along the spiral direction of the spiral leaf 130, the end surface of the matching block 220 close to the sealing block 210 is provided with a suction port 221 connected to its internal space, and the inner end of the suction port 221 is provided with a valve (not shown in the figure).

[0085] Correspondingly, the heat exchange device for the solar thermal power cogeneration assembly further includes: an extraction assembly (not shown in the figure) and a connecting pipe (not shown in the figure). The connecting pipe is used to connect the extraction assembly and the internal space of the matching block 220. The connecting pipe is a flexible pipe, and the connecting pipe has a control valve (not shown in the figure) for controlling opening and closing.

[0086] The control valve and the extraction assembly are both normally closed.

[0087] If the heat medium (water) used is prone to scale formation, or the positioning sleeve 510 and the heat-conducting sleeve 120 have been used for a long time without changing their relative positions, it is necessary to promptly clean the scale that may exist on the heat-conducting sleeve 120 and the spiral blades 130 .

[0088] During cleaning, the adjusting sleeve 200 is driven to rotate so that the heat-conducting sleeve 120 is gradually withdrawn from the adjusting sleeve 200. During this process, the matching block 220 can clean the surface of the heat-conducting sleeve 120 and the spiral blade 130. At this time, the control valve and the extraction component are opened synchronously, and the heat-carrying medium (water) in the heat exchange cavity 300 is extracted at a preset speed by using the extraction component.

[0089] In this process, the matching block 220 cleans the scale and other stains while the water flow simultaneously sucks the cleaned scale and other stains out from the suction port 221, thereby cleaning the heat exchange chamber 300. With this design, the scale and other stains can be taken away by the water flow while being cleaned by the matching block 220, thereby preventing them from being deposited in other locations in the heat exchange chamber 300.

[0090] In summary, the heat exchange device for the solar cogeneration component provided in the embodiment of the present invention can effectively improve the accuracy and stability of the heating temperature in the process of supplementing the heating with electric energy, improve the stability of the heating supplemented by electric energy, and improve the user experience.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat exchange device for a solar heat and power cogeneration component, characterized in that: include: Electric heating mechanism, regulating sleeve and driving mechanism; The electric heating mechanism comprises a positioning column, a heating wire and a heat-conducting sleeve; the heating wire is arranged at one end of the positioning column, and the heat-conducting sleeve cover is arranged at the end of the positioning column; the heat-conducting sleeve is cylindrical, the heating wire is encapsulated in the heat-conducting sleeve and extends along the length direction of the heat-conducting sleeve; the circumferential wall of the heat-conducting sleeve has spiral leaves, and the spiral leaves continuously extend to the two ends of the heat-conducting sleeve; One end of the adjustment sleeve is closed by a sealing block, the inner diameter of the adjustment sleeve is matched with the outer diameter of the spiral leaf, the adjustment sleeve is coaxially arranged with the heat-conducting sleeve and sleeved on the spiral leaf, the spiral leaf is fitted with the inner side wall of the adjustment sleeve, and there is a movable sealing relationship between the spiral leaf and the inner side wall of the adjustment sleeve; The inner wall of the adjusting sleeve is fixedly connected with a matching block, and the matching block is located at one end of the adjusting sleeve away from the sealing block; along the axial direction of the heat-conducting sleeve, the matching block is fitted between two adjacent circles of blades of the spiral leaf, and is slidably sealed with the two adjacent circles of blades of the spiral leaf; the matching block is also fitted with the circumferential wall of the heat-conducting sleeve, and the matching block and the circumferential wall of the heat-conducting sleeve are slidably sealed; the matching block, the adjusting sleeve, the heat-conducting sleeve and the spiral leaf enclose a heat exchange cavity for the flow of heat-carrying medium; The circumferential wall of the adjusting sleeve is provided with an inlet pipe, the inlet pipe is located on a side of the matching block close to the sealing block, and the inlet pipe is communicated with the heat exchange cavity; the sealing block is provided with an outlet pipe communicated with the heat exchange cavity; The driving mechanism is in driving cooperation with the adjusting sleeve to drive the adjusting sleeve to rotate, thereby adjusting the length of the heat-conducting sleeve entering the adjusting sleeve.

2. The heat exchange device for a solar thermal power cogeneration assembly according to claim 1, characterized in that: The heat exchange device for the solar thermal power cogeneration assembly also includes: a base, a positioning sleeve, a water supply part and a matching ring; The electric heating mechanism is installed on the base, the positioning sleeve is coaxially arranged with the adjustment sleeve and annularly arranged on the adjustment sleeve, and the positioning sleeve is connected to the base; The water supply member is annular and hollow, and a notch is provided on the inner ring wall of the water supply member, and the notch continuously extends in a ring shape along its circumference; the matching ring is coaxially arranged with the water supply member, and the matching ring is matched in the notch; along the circumference of the water supply member, the matching ring can be rotatably matched with the notch and is rotationally sealed with the water supply member; The water supply member is annularly arranged on the adjusting sleeve and is coaxially arranged with the adjusting sleeve, and the water supply member is matched inside the positioning sleeve; along the circumferential direction of the adjusting sleeve, the water supply member is fixedly matched with the positioning sleeve; along the axial direction of the adjusting sleeve, the water supply member is slidably matched with the positioning sleeve; The water supply component is provided with a water inlet pipe communicating with its internal space; the inlet pipe is arranged along the radial direction of the adjustment sleeve and extends through the matching ring, and the inlet pipe is communicated with the internal space of the water supply component.

3. The heat exchange device for a solar thermal power cogeneration assembly according to claim 2, characterized in that: The driving mechanism is arranged on the water supply component.

4. The heat exchange device for a solar thermal power cogeneration assembly according to claim 2, characterized in that: The positioning column is cylindrical, and the outer diameter of the positioning column is equal to the outer diameter of the heat-conducting sleeve; the spiral blade extends to the outer wall of the positioning column; the electric heating mechanism is connected to the base through the positioning column; The heat exchange device for the solar thermal power cogeneration assembly further includes: a preheating sleeve, the inner diameter of the preheating sleeve is larger than the outer diameter of the spiral blade; The preheating sleeve is coaxially arranged with the adjusting sleeve, the preheating sleeve is located at one end of the adjusting sleeve away from the sealing block, and the preheating sleeve and the adjusting sleeve are rotatably connected via a rotating ring; a sealing ring is arranged at one end of the preheating sleeve away from the adjusting sleeve, the outer ring wall of the sealing ring is in contact with and fixedly connected to the inner ring wall of the preheating sleeve, the sealing ring is sleeved on the positioning column, the inner ring wall of the sealing ring is in contact with the outer side wall of the positioning column; along the axial direction of the positioning column, the sealing ring is slidably matched with the positioning column; along the circumferential direction of the positioning column, the sealing ring is fixedly matched with the positioning column; The preheating sleeve is a hollow structure, one side of the preheating sleeve is provided with an inlet pipe communicating with its internal space, and the other side of the preheating sleeve is provided with an outlet pipe communicating with its internal space; The positioning sleeve and the base are fixedly connected by a connecting column, and the positioning sleeve and the base are spaced apart; the inlet pipe and the outlet pipe are led out through the gap between the positioning sleeve and the base; the outlet pipe is used to communicate with the inlet of the water tank, and the water inlet pipe is used to communicate with the outlet of the water tank.

5. The heat exchange device for a solar thermal power cogeneration assembly according to claim 1, characterized in that: The outlet pipe is coaxially arranged with the adjusting sleeve.

6. The heat exchange device for a solar thermal power cogeneration assembly according to claim 1, characterized in that: The matching block is extended along the spiral direction of the spiral blade; the matching block is a hollow structure; along the spiral direction of the spiral blade, the end surface of one end of the matching block close to the sealing block is provided with a suction port connected to its internal space, and the inner end of the suction port is provided with a valve; the heat exchange device for the solar heat and power cogeneration component also includes: an extraction component and a connecting pipe; the connecting pipe is used to connect the extraction component and the internal space of the matching block; the connecting pipe is a flexible pipe, and the connecting pipe has a control valve for controlling opening and closing.

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