A device for heating a planting greenhouse using heat pipes

Abstract

The present invention relates to the technical field of heat pipe heat exchange, and particularly relates to a device for heating a planting greenhouse using a heat pipe, which includes a heat pipe, and a plurality of heat dissipation copper sheets with the same specifications are provided at the end of the heat pipe; a temperature sensing component is symmetrically arranged between two adjacent heat pipes, and the temperature sensing component includes a limiting cylinder connected to the upper heat dissipation copper sheet, an active block is arranged inside the limiting cylinder, an expansion member is arranged at the top of the active block, and a mounting post is arranged at the bottom of the active block; an air flow control component is arranged between two adjacent heat dissipation copper sheets, and the air flow control component includes a large-diameter cylinder fixedly connected to the upper heat dissipation copper sheet, a small-diameter cylinder is slidably connected inside the large-diameter cylinder, and through holes distributed in an array are formed on the outer wall of the small-diameter cylinder; the present invention reflects the temperature change between two adjacent heat dissipation copper sheets through the expansion member, and controls the temperature sensing component and the air flow control component to increase the air flow velocity between two adjacent heat dissipation copper sheets, thereby improving the heat dissipation efficiency of the heat dissipation copper sheet.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pipe heat exchange, and particularly relates to a device for heating a planting greenhouse by using a heat pipe. Background Art

[0002] A typical heat pipe consists of a shell, a wick, and end caps. One end of the pipe is the evaporation section, the other end is the condensation section, and the adiabatic section is in the middle of the two sections; after evacuating the inside of the pipe to a negative pressure, an appropriate amount of working liquid is filled, so that the wick capillary porous material closely attached to the inner wall of the pipe is filled with liquid and then sealed; when one end of the heat pipe absorbs heat, the liquid in the capillary wick evaporates and vaporizes, and the vapor flows to the other end under a small pressure difference to release heat and condense into a liquid, and the liquid then flows back to the evaporation section along the porous material by the action of capillary force.

[0003] In a planting greenhouse, the temperature at night in winter is low and heating is required. Usually, fuel is burned to provide heat for the greenhouse, wasting a large amount of energy. By using a heat pipe device to extract the inexhaustible geothermal energy for heating the greenhouse, a large amount of energy can be saved.

[0004] Chinese Patent with application number CN201410621194.7 discloses a geothermal heat pipe air conditioner, which includes a space to be temperature-adjusted. Inside the space to be temperature-adjusted, a low-temperature adjustment mechanism is provided. The low-temperature adjustment mechanism includes a radiator, and a composite heat pipe with one end inserted into the ground and the other end extending into the temperature-adjusted space; the composite heat pipe includes a working heat pipe, and also includes an auxiliary heat pipe inserted into the working heat pipe. The auxiliary heat pipe includes an inner end and an extending end. The inner end of the auxiliary heat pipe is arranged inside the lower end of the working heat pipe, and the extending end extends outside the upper end of the working heat pipe, forming a sealed annular diversion cavity between the working heat pipe and the auxiliary heat pipe; the radiator is above the working heat pipe; a heat source device is also provided at the extending end of the auxiliary heat pipe, and the heat source device includes a low-temperature heat source or a high-temperature heat source.

[0005] Although in the prior art, the heat conduction effect can be improved by expanding the temperature difference at both ends of the working heat pipe, but with the improvement of the heat conduction effect, the temperature of the condensation section of the heat pipe gradually increases. Since the heat pipe dissipates heat through heat dissipation fins, there is an obvious temperature difference between the middle and both sides of the heat dissipation fins, resulting in deformation of the heat dissipation fins. During the deformation process, the heat dissipation fins squeeze the heat pipe, causing damage to the heat pipe.

[0006] Therefore, it is very necessary to invent a device for heating a planting greenhouse by using a heat pipe to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a device for heating a planting greenhouse by using a heat pipe, so as to solve the technical problem that the heat dissipation fins are deformed due to the temperature change of the condensation section of the heat pipe proposed in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A device for heating a planting greenhouse using heat pipes, comprising a heat pipe assembly. The heat pipe assembly includes heat pipes distributed in an array. Heat dissipation fin assemblies are provided at the ends of the heat pipes. The heat dissipation fin assemblies include multiple heat dissipation copper sheets of the same specification. The heat dissipation copper sheets are equidistantly distributed on the heat pipes. The heat dissipation copper sheet located at the top of the heat pipe is fixedly connected to the heat pipe, and the remaining heat dissipation copper sheets are slidably connected to the heat pipe.

[0010] Temperature sensing components are symmetrically provided between two adjacent heat pipes. The temperature sensing components are located between two adjacent heat dissipation copper sheets. The temperature sensing components include a limiting cylinder connected to the upper heat dissipation copper sheet. An active block is provided inside the limiting cylinder. An expansion member is provided at the top of the active block. The top of the expansion member is connected to the upper heat dissipation copper sheet. An installation column is provided at the bottom of the active block. The bottom of the installation column is connected to the lower heat dissipation copper sheet.

[0011] An air flow control component is provided between two adjacent heat dissipation copper sheets. The air flow control component includes a large-diameter cylinder fixedly connected to the upper heat dissipation copper sheet. A small-diameter cylinder is slidably connected inside the large-diameter cylinder. The bottom of the small-diameter cylinder is connected to the lower heat dissipation copper sheet. Arrayed through holes are provided on the outer wall of the small-diameter cylinder.

[0012] A knocking device is provided at the bottom of the small-diameter cylinder. A turning member is provided between the small-diameter cylinder and the large-diameter cylinder.

[0013] The present invention reflects the temperature change between two adjacent heat dissipation copper sheets through the expansion member. During the normal operation of the heat pipe, the heat conducted by the heat dissipation copper sheet drives the expansion of the expansion member. The expansion member pushes the installation column downward. When the installation column moves downward, the through holes on the small-diameter cylinder are disengaged from the occlusion of the large-diameter cylinder. The air flow blown out from the hair dryer blows out from the through holes on the small-diameter cylinder. The air flow increases the air flow velocity between two adjacent heat dissipation copper sheets, improving the heat dissipation efficiency of the heat dissipation copper sheet.

[0014] When the heat exchange efficiency of the heat pipe is too high, the length by which the expansion member drives the installation column to extend out of the limiting cylinder increases, causing the distance between two adjacent heat dissipation copper sheets to be further enlarged, making the air circulation between the adjacent heat dissipation copper sheets smoother. During the process of the distance between two adjacent heat dissipation copper sheets being further enlarged, the small-diameter cylinder rotates towards the middle direction of the heat dissipation copper sheet, causing the knocking rod to impact the installation column. The installation column shakes loose the impurities adhered to the surface of the heat dissipation copper sheet. The impurities fall off from the surface of the heat dissipation copper sheet under the impact of the air flow ejected from the through holes.

[0015] When the heat transfer efficiency in a certain area of the heat pipe is too small, the expansion part contracts, and the expansion part drives the small-diameter cylinder to retract into the large-diameter cylinder. The large-diameter cylinder blocks the through holes on the small-diameter cylinder. During the retraction of the small-diameter cylinder, the small-diameter cylinder drives the rotating parts on its circumferential side to rotate towards the heat pipe, causing the knocking rod to impact the heat pipe, generating high-frequency vibrations in the heat pipe itself, thereby cleaning the blocked part inside the heat pipe and reducing the possibility of dry-out in the evaporation section.

[0016] Preferably, an elastic member is provided on the outer side of the mounting post. One end of the elastic member is connected to the lower surface of the movable block, and the end of the elastic member away from the movable block is connected to the bottom of the limiting cylinder.

[0017] Preferably, the knocking device includes an air outlet hole opened on the surface of the heat dissipation copper sheet. The air outlet hole is in the same straight line as the small-diameter cylinder. A wind wheel is provided inside the air outlet hole at the bottom of the small-diameter cylinder, and a knocking block is provided on the top of the wind wheel.

[0018] Rotating parts are symmetrically provided at the bottom of the small-diameter cylinder. After the knocking block contacts the rotating parts, it drives the rotating parts to deflect.

[0019] Preferably, the rotating part includes a rotating block. The rotating block is rotatably connected to the bottom of the small-diameter cylinder through a torsion spring. A wedge-shaped block is fixedly connected to the outside of the rotating block. The wedge-shaped block is located inside the small-diameter cylinder and contacts the knocking block.

[0020] A knocking rod is fixedly connected to the outside of the rotating block. The knocking rod is located outside the small-diameter cylinder.

[0021] Preferably, the steering part includes an arc-shaped groove opened on the outer wall of the small-diameter cylinder. The arc-shaped groove does not contact the through hole. A convex block is provided inside the arc-shaped groove. The convex block is slidably connected to the arc-shaped groove, and the convex block is fixedly connected to the inner bottom of the large-diameter cylinder.

[0022] The bottom of the small-diameter cylinder is rotatably connected to the heat dissipation copper sheet. By the convex block squeezing the arc-shaped groove, the small-diameter cylinder rotates self - rotatably.

[0023] Preferably, the heat pipes distributed on the same heat dissipation copper sheet and the large-diameter cylinder are in the same straight line, and the position of the large-diameter cylinder is at the midpoint of the straight line formed by two adjacent heat pipes.

[0024] The limiting cylinders on both sides of a single large-diameter cylinder and the large-diameter cylinder are in the same straight line, and the position of the large-diameter cylinder is at the midpoint of the straight line formed by the two limiting cylinders.

[0025] Preferably, the two knocking rods on a single small-diameter cylinder are in the same straight line. When the two knocking rods are parallel to the side of the heat dissipation copper sheet, the ends of the knocking rods are flush with the side of the heat dissipation copper sheet. The knocking rods are made of flexible materials.

[0026] Preferably, the expansion member includes an expansion airbag, and a gas that expands with heat and contracts with cold is filled inside the expansion airbag; the elastic member includes a spring, and a pressure sensor is provided at the connection between the spring and the bottom of the limiting cylinder.

[0027] Preferably, the heat pipe includes a housing, a capillary part is provided inside the housing, a vacuum chamber is provided in the middle of the capillary part, and a liquid working medium is provided inside the vacuum chamber.

[0028] Preferably, the heat pipe includes a heating section, a heat insulation section, and a condensation section arranged in sequence from top to bottom, and the liquid working medium is arranged in the heating section.

[0029] Technical effects and advantages of the present invention:

[0030] In the present invention, the expansion member reflects the temperature change between two adjacent heat dissipation copper sheets. During the normal operation of the heat pipe, the heat conducted by the heat dissipation copper sheet drives the expansion of the expansion member. The expansion member pushes the mounting post to move downward. When the mounting post moves downward, the through hole on the small-diameter cylinder is disengaged from the blockage of the large-diameter cylinder, and the air flow blown out from the through hole on the small-diameter cylinder increases the air flow rate between two adjacent heat dissipation copper sheets, improving the heat dissipation efficiency of the heat dissipation copper sheet; when the heat exchange efficiency of the heat pipe is too high, the length that the expansion member drives the mounting post to extend from the limiting cylinder increases, so that the distance between two adjacent heat dissipation copper sheets is expanded again, making the air circulation between adjacent heat dissipation copper sheets smoother. During the process of the distance between two adjacent heat dissipation copper sheets being expanded again, the small-diameter cylinder rotates towards the middle of the heat dissipation copper sheet, causing the knocking rod to collide with the mounting post, and the mounting post shakes off the impurities adhered to the surface of the heat dissipation copper sheet. Under the impact of the air flow ejected from the through hole, the impurities fall off from the surface of the heat dissipation copper sheet; when the heat exchange efficiency of a certain area of the heat pipe is too low, the expansion member contracts, and the expansion member drives the small-diameter cylinder to retract into the large-diameter cylinder. The large-diameter cylinder blocks the through hole on the small-diameter cylinder. During the retraction process of the small-diameter cylinder, the small-diameter cylinder drives the rotating part on its periphery to rotate towards the end of the heat dissipation copper sheet, causing the knocking rod to collide with the heat pipe, making the heat pipe itself generate high-frequency vibrations, thereby cleaning the blocked part inside the heat pipe and reducing the possibility of the evaporation section drying out. Description of the drawings

[0031] Figure 1 It is a schematic diagram of the main structure of the heat pipe of the present invention.

[0032] Figure 2 It is a schematic diagram of the working principle structure of the heat pipe of the present invention.

[0033] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 4Schematic diagram of the state structure during the normal operation of the present invention.

[0035] Figure 5 Schematic cross-sectional structure diagram of the air flow control component of the present invention.

[0036] Figure 6 Schematic diagram of the structure of another working state of the present invention.

[0037] Figure 7 Schematic diagram of the structure of the temperature sensing component of the present invention.

[0038] Figure 8 Schematic diagram of the structure of the steering member of the present invention.

[0039] Figure 9 Schematic diagram of the unfolded structure of the small diameter cylinder of the present invention.

[0040] Figure 10 Schematic diagram of the structure of the rotating part of the present invention.

[0041] Figure 11 Distribution diagram of the temperature sensing component and the air flow control component of the present invention on the heat dissipation copper sheet.

[0042] In the figure: 1, heat pipe; 101, outer shell; 102, capillary part; 103, vacuum chamber; 2, heat dissipation copper sheet; 3, temperature sensing component; 301, limiting cylinder; 302, movable block; 303, expansion member; 304, mounting post; 4, air flow control component; 401, large diameter cylinder; 402, small diameter cylinder; 403, through hole; 5, knocking device; 501, air injection hole; 502, wind wheel; 503, knocking block; 6, steering member; 601, arc groove; 602, convex block; 7, elastic member; 8, rotating part; 801, rotating block; 802, wedge block; 803, knocking rod. Detailed implementation manners

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] A device for heating a planting greenhouse using a heat pipe, as Figures 1 - 11 shown, includes a heat pipe assembly. The heat pipe assembly includes heat pipes 1 distributed in an array. Heat dissipation fin assemblies are provided at the ends of the heat pipes 1. The heat dissipation fin assemblies include multiple heat dissipation copper sheets 2 of the same specification. The heat dissipation copper sheets 2 are evenly distributed on the heat pipes 1. The heat dissipation copper sheet 2 located at the top of the heat pipe 1 is fixedly connected to the heat pipe 1, and the remaining heat dissipation copper sheets 2 are slidably connected to the heat pipe 1.

[0045] A temperature sensing component 3 is symmetrically arranged between two adjacent heat pipes 1. The temperature sensing component 3 is located between two adjacent heat dissipation copper sheets 2. The temperature sensing component 3 includes a limiting cylinder 301 connected to the upper heat dissipation copper sheet 2. An active block 302 is arranged inside the limiting cylinder 301. An expansion part 303 is arranged on the top of the active block 302. The top of the expansion part 303 is connected to the upper heat dissipation copper sheet 2. An installation column 304 is arranged at the bottom of the active block 302. The bottom of the installation column 304 is connected to the lower heat dissipation copper sheet 2. An elastic part 7 is arranged on the outer side of the installation column 304. One end of the elastic part 7 is connected to the lower surface of the active block 302, and the end of the elastic part 7 away from the active block 302 is connected to the bottom of the limiting cylinder 301.

[0046] An air flow control component 4 is arranged between two adjacent heat dissipation copper sheets 2. The air flow control component 4 includes a large-diameter cylinder 401 fixedly connected to the upper heat dissipation copper sheet 2. A small-diameter cylinder 402 is slidably connected inside the large-diameter cylinder 401. The bottom of the small-diameter cylinder 402 is connected to the lower heat dissipation copper sheet 2. Through holes 403 are arranged in an array on the outer wall of the small-diameter cylinder 402.

[0047] A knocking device 5 is arranged at the bottom of the small-diameter cylinder 402. A turning part 6 is arranged between the small-diameter cylinder 402 and the large-diameter cylinder 401.

[0048] Specifically, the knocking device 5 includes an air intake hole 501 opened on the surface of the heat dissipation copper sheet 2. The air intake hole 501 is in the same straight line as the small-diameter cylinder 402. A wind wheel 502 is arranged inside the air intake hole 501 at the bottom of the small-diameter cylinder 402. A knocking block 503 is arranged on the top of the wind wheel 502.

[0049] Rotating parts 8 are symmetrically arranged at the bottom of the small-diameter cylinder 402. After the knocking block 503 contacts the rotating parts 8, the rotating parts 8 are driven to deflect.

[0050] Specifically, the rotating part 8 includes a rotating block 801. The rotating block 801 is rotatably connected to the bottom of the small-diameter cylinder 402 through a torsion spring. A wedge-shaped block 802 is fixedly connected to the outer side of the rotating block 801. The wedge-shaped block 802 is located inside the small-diameter cylinder 402. The wedge-shaped block 802 contacts the knocking block 503.

[0051] A knocking rod 803 is fixedly connected to the outer side of the rotating block 801. The knocking rod 803 is located outside the small-diameter cylinder 402.

[0052] Specifically, the turning part 6 includes an arc-shaped groove 601 opened on the outer wall of the small-diameter cylinder 402. The arc-shaped groove 601 does not contact the through holes 403. A convex block 602 is arranged inside the arc-shaped groove 601. The convex block 602 is slidably connected to the arc-shaped groove 601. The convex block 602 is fixedly connected to the inner bottom of the large-diameter cylinder 401.

[0053] The bottom of the small-diameter cylinder 402 is rotatably connected to the heat-dissipating copper sheet 2. By pressing the arc-shaped groove 601 with the bump 602, the small-diameter cylinder 402 rotates self-driven.

[0054] Specifically, the heat pipes 1 distributed on the same heat-dissipating copper sheet 2 and the large-diameter cylinder 401 are located on the same straight line, and the position of the large-diameter cylinder 401 is at the midpoint of the straight line formed by two adjacent heat pipes 1.

[0055] The limiting cylinders 301 on both sides of a single large-diameter cylinder 401 and the large-diameter cylinder 401 are located on the same straight line, and the position of the large-diameter cylinder 401 is at the midpoint of the straight line formed by the two limiting cylinders 301.

[0056] Specifically, the two knocking rods 803 on a single small-diameter cylinder 402 are located on the same straight line. When the two knocking rods 803 are parallel to the side of the heat-dissipating copper sheet 2, the ends of the knocking rods 803 are flush with the side of the heat-dissipating copper sheet 2; the knocking rods 803 are made of flexible materials.

[0057] Specifically, the expansion member 303 includes an expansion airbag, and the inside of the expansion airbag is filled with a gas that expands and contracts with heat; the elastic member 7 includes a spring, and a pressure sensor is provided at the connection between the spring and the bottom of the limiting cylinder 301.

[0058] Specifically, the heat pipe 1 includes a housing 101, a capillary part 102 is provided inside the housing 101, a vacuum chamber 103 is provided in the middle of the capillary part 102, and a liquid working medium is provided inside the vacuum chamber 103.

[0059] Specifically, the heat pipe 1 includes a heating section, a heat-insulating section, and a condensing section arranged in sequence from top to bottom, and the liquid working medium is arranged in the heating section.

[0060] The heating section of the heat pipe 1 is located in the heat storage layer of the shallow geothermal temperature, and the condensing section is located above the ground. During normal use, the heat storage layer heats the heating section of the heat pipe 1, causing the heat pipe 1 to heat up. Since the inside of the heat pipe 1 is in a vacuum state, the liquid working medium will rapidly boil and vaporize at a temperature much lower than the normal boiling point. This process is endothermic. The vaporized hot vapor will flow in a jet-like state to the low-temperature and low-pressure end of the heat pipe 1 (i.e., the condensing section). Since the temperature of the condensing section is relatively low, the hot vapor will condense into liquid beads and adhere to the capillary part 102 on the inner wall of the housing 101. The liquid flows back to the vicinity of the heating section of the heat pipe 1 under the action of gravity, centrifugal force, and capillary force, and so on in a cycle.

[0061] Since the condensation section of the heat pipe 1 is provided with a contact-type heat dissipation copper sheet 2, the heat dissipation copper sheet 2 can dissipate heat into the air. Since a temperature sensing component 3 and an air flow control component 4 are provided between two adjacent heat dissipation copper sheets 2, when the heat pipe 1 is working, the heat conducted by the heat dissipation copper sheet 2 drives the expansion part 303 to expand. The expansion part 303 pushes the movable block 302 to move downward, and the movable block 302 pushes the mounting column 304 to move downward. The downward movement of the mounting column 304 enlarges the distance between two adjacent heat dissipation copper sheets 2, thereby improving the heat dissipation efficiency of the heat dissipation copper sheet 2.

[0062] When the mounting column 304 moves downward, the small-diameter cylinder 402 gradually extends out of the large-diameter cylinder 401, and the through hole 403 on the small-diameter cylinder 402 is disengaged from the shielding of the large-diameter cylinder 401. Since an elastic member 7 is provided between the movable block 302 and the limiting cylinder 301, during the downward movement of the mounting column 304, the movable block 302 gradually squeezes the elastic member 7, causing the elastic member 7 to be compressed. When the value of the pressure sensor on the elastic member 7 reaches the set value, the control system controls the external blower to start. The air outlet end of the blower is connected to the air inlet hole 501 on the heat dissipation copper sheet 2 at the top of the heat pipe 1 through an air pipe. The air flow blown out by the blower enters the large-diameter cylinder 401 through the air inlet hole 501, and the air flow entering the large-diameter cylinder 401 is blown out from the through hole 403 on the small-diameter cylinder 402. On the one hand, the air flow rate between two adjacent heat dissipation copper sheets 2 is increased, improving the heat dissipation efficiency of the heat dissipation copper sheet 2; on the other hand, the air flow blown out from the through hole 403 impacts the surface of the heat dissipation copper sheet 2, cleaning the impurities attached to the heat dissipation copper sheet 2 and preventing the impurities from affecting the heat dissipation efficiency of the heat dissipation copper sheet 2.

[0063] It should be noted that during the normal operation of the device, the convex block 602 on the large-diameter cylinder 401 is located in the middle of the arc-shaped groove 601 (as specifically shown in Figure 9 ), at this time, the through hole 403 at the bottom of the small-diameter cylinder 402 loses the shielding of the large-diameter cylinder 401, and the through hole 403 at the top of the small-diameter cylinder 402 is still under the shielding of the large-diameter cylinder 401.

[0064] When the heat exchange efficiency of the heat pipe 1 is too high, the temperature between two adjacent heat dissipation copper sheets 2 is higher than the temperature between the remaining heat dissipation copper sheets 2. At this time, the expansion amount of the expansion part 303 between the two adjacent heat dissipation copper sheets 2 is greater than the expansion amount of the expansion part 303 between the remaining heat dissipation copper sheets 2, that is, the length by which the expansion part 303 between two adjacent heat dissipation copper sheets 2 drives the mounting column 304 to extend out of the limiting cylinder 301 is increased, so that the distance between two adjacent heat dissipation copper sheets 2 is enlarged again, thereby making the air circulation between two adjacent heat dissipation copper sheets 2 smoother, enabling the heat accumulated between two adjacent heat dissipation copper sheets 2 to be quickly diffused, and improving the heat dissipation efficiency between two adjacent heat dissipation copper sheets 2.

[0065] During the process of the distance between two adjacent heat dissipation copper sheets 2 expanding again, the length of the small-diameter cylinder 402 extending from the large-diameter cylinder 401 increases, so that the air flow rate ejected from the through hole 403 increases, further improving the heat dissipation efficiency between two adjacent heat dissipation copper sheets 2.

[0066] Since the bottom of the small-diameter cylinder 402 is rotatably connected to the heat dissipation copper sheet 2, during the process of the small-diameter cylinder 402 extending from the large-diameter cylinder 401, the bump 602 on the large-diameter cylinder 401 squeezes the arc-shaped groove 601, forcing the small-diameter cylinder 402 to rotate (the small-diameter cylinder 402 rotates towards the middle direction of the heat dissipation copper sheet 2), and the small-diameter cylinder 402 drives the rotating part 8 on its circumferential side to rotate towards the mounting post 304; since a wind wheel 502 is provided below the small-diameter cylinder 402, the wind wheel 502 can rotate under the action of the air flow, and the wind wheel 502 drives the knocking block 503 to rotate. The knocking block 503 includes a cam block. During the rotation of the knocking block 503, the eccentric part of the knocking block 503 contacts and impacts the wedge-shaped block 802, so that the wedge-shaped block 802 drives the knocking rod 803 to deflect through the rotating block 801, and the knocking rod 803 impacts the mounting post 304. Since one end of the mounting post 304 far from the movable block 302 is fixedly connected to the heat dissipation copper sheet 2, after the mounting post 304 is impacted, the heat dissipation copper sheet 2 will vibrate, and the vibration loosens the impurities adhered to the surface of the heat dissipation copper sheet 2. Under the impact of the air flow ejected from the through hole 403, the impurities fall off from the surface of the heat dissipation copper sheet 2, preventing the impurities from adhering to the surface of the heat dissipation copper sheet 2 and affecting the heat dissipation efficiency of the heat dissipation copper sheet 2.

[0067] It should be noted that: after the knocking block 503 contacts the wedge-shaped block 802, the knocking block 503 squeezes the wedge-shaped block 802 to rotate, and the wedge-shaped block 802 drives the knocking rod 803 to deflect through the rotating block 801; after the knocking block 503 disengages from the wedge-shaped block 802, under the action of the torsion spring, the knocking rod 803 reverses, and the wedge-shaped block 802 returns to the state when it is not in contact with the knocking block 503.

[0068] In this embodiment, a telescopic airbag is provided at one end of the mounting post 304 away from the movable block 302. An intake one-way valve hole and an exhaust one-way valve hole are provided on the outer side of the telescopic airbag. The height where the telescopic airbag is located is consistent with the height where the knocking rod 803 is located. Since the rotation amplitude of the small-diameter cylinder 402 is related to the temperature between two adjacent heat dissipation copper sheets 2, the greater the temperature, the greater the rotation amplitude of the small-diameter cylinder 402, the lower the frequency of contact between the knocking rod 803 and the telescopic airbag, and the greater the degree of extrusion of the telescopic airbag after the knocking rod 803 contacts the telescopic airbag. Therefore, when the knocking block 503 contacts and impacts the wedge-shaped block 802, the knocking rod 803 continuously squeezes the telescopic airbag, and the gas inside the telescopic airbag sprays out from the exhaust one-way valve hole. The telescopic airbag cleans the area around the mounting post 304, avoiding that the air flow ejected from the through hole 403 cannot comprehensively clean the area around the mounting post 304.

[0069] The smaller the temperature between two adjacent heat dissipation copper sheets 2, the smaller the rotation amplitude of the small-diameter cylinder 402, the higher the frequency of contact between the knocking rod 803 and the telescopic airbag, and the smaller the degree of extrusion of the telescopic airbag after the knocking rod 803 contacts the telescopic airbag. At this time, the telescopic airbag plays a buffering role, avoiding hard contact between the knocking rod 803 and the mounting post 304, resulting in too large a vibration amplitude of the heat dissipation copper sheet 2 and causing deformation at the connection between the heat dissipation copper sheet 2 and the heat pipe 1.

[0070] When the heat transfer efficiency of a certain area of the heat pipe 1 is too small, it indicates that the inside of the heat pipe 1 is blocked, and the condensed steam cannot flow back to the evaporation section in the blocked area, making the temperature between two adjacent heat dissipation copper sheets 2 in the blocked area less than the temperature in the normal state, and the temperature between two adjacent heat dissipation copper sheets 2 in the unblocked area greater than the temperature in the normal state.

[0071] Due to the temperature drop, the expansion member 303 between two adjacent heat dissipation copper sheets 2 in the blocked area contracts. During the contraction of the expansion member 303, under the elastic restoring force of the elastic member 7, the movable block 302 is driven to move upward, and the movable block 302 drives the mounting post 304 to retract into the inside of the limiting cylinder 301. The mounting post 304 drives the small-diameter cylinder 402 to retract into the inside of the large-diameter cylinder 401 through the heat dissipation copper sheet 2. During the retraction of the small-diameter cylinder 402, the convex block 602 on the large-diameter cylinder 401 and the arc-shaped groove 601 generate extrusion to cause the small-diameter cylinder 402 to rotate (the small-diameter cylinder 402 rotates in the outer direction of the heat dissipation copper sheet 2). The small-diameter cylinder 402 drives the rotating part 8 on its periphery to rotate towards the heat pipe 1. Since after the small-diameter cylinder 402 retracts into the large-diameter cylinder 401, the large-diameter cylinder 401 blocks the through hole 403 on the small-diameter cylinder 402, the air flow will not be diverted from the through hole 403 after entering the large-diameter cylinder 401, thereby accelerating the rotation speed of the wind wheel 502.

[0072] During the process that the wind wheel 502 drives the knocking block 503 to rotate, after the eccentric part of the knocking block 503 contacts and impacts the wedge-shaped block 802, the wedge-shaped block 802 drives the knocking rod 803 to deflect through the rotating block 801, and the knocking rod 803 impacts the heat pipe 1. Since the rotational speed of the wind wheel 502 is increased, the time interval of the contact and impact between the knocking block 503 and the wedge-shaped block 802 is shortened, so that the knocking frequency of the knocking rod 803 on the heat pipe 1 is increased, causing the heat pipe 1 to generate high-frequency vibrations, thereby cleaning the blocked part inside the heat pipe 1 and reducing the possibility of the evaporation section drying out.

[0073] In the present invention, the expansion member 303 reflects the temperature change between two adjacent heat dissipation copper sheets 2. During the normal operation of the heat pipe 1, the heat conducted by the heat dissipation copper sheet 2 drives the expansion member 303 to expand. The expansion member 303 pushes the mounting post 304 downward. When the mounting post 304 moves downward, the through hole 403 on the small-diameter cylinder 402 is disengaged from the shielding of the large-diameter cylinder 401, and the air flow blown out from the through hole 403 on the small-diameter cylinder 402 increases the air flow velocity between two adjacent heat dissipation copper sheets 2, improving the heat dissipation efficiency of the heat dissipation copper sheet 2.

[0074] When the heat transfer efficiency of the heat pipe 1 is too high, the expansion member 303 drives the length of the mounting post 304 extending out of the limiting cylinder 301 to increase, so that the distance between two adjacent heat dissipation copper sheets 2 is further enlarged, making the air circulation between two adjacent heat dissipation copper sheets 2 smoother. During the process of the further enlargement of the distance between two adjacent heat dissipation copper sheets 2, the small-diameter cylinder 402 rotates towards the middle of the heat dissipation copper sheet 2, causing the knocking rod 803 to impact the mounting post 304. The mounting post 304 shakes loose the impurities adhered to the surface of the heat dissipation copper sheet 2, and the impurities fall off from the surface of the heat dissipation copper sheet 2 under the impact of the air flow ejected from the through hole 403.

[0075] When the heat transfer efficiency of a certain area of the heat pipe 1 is too low, the expansion member 303 contracts, and the expansion member 303 drives the small-diameter cylinder 402 to retract into the large-diameter cylinder 401. The large-diameter cylinder 401 blocks the through hole 403 on the small-diameter cylinder 402. During the retraction process of the small-diameter cylinder 402, the small-diameter cylinder 402 drives the rotating part 8 on its periphery to rotate towards the end of the heat dissipation copper sheet 2, causing the knocking rod 803 to impact the heat pipe 1, making the heat pipe 1 generate high-frequency vibrations, thereby cleaning the blocked part inside the heat pipe 1 and reducing the possibility of the evaporation section drying out.

[0076] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0077] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for heating a planting greenhouse using a heat pipe, comprising a heat pipe assembly, characterized in that: The heat pipe assembly includes heat pipes distributed in an array. Heat dissipation fin assemblies are provided at the ends of the heat pipes. The heat dissipation fin assemblies include multiple heat dissipation copper sheets of the same specification. The heat dissipation copper sheets are equidistantly distributed on the heat pipes. The heat dissipation copper sheet located at the top of the heat pipe is fixedly connected to the heat pipe, and the remaining heat dissipation copper sheets are slidably connected to the heat pipe; Temperature sensing components are symmetrically provided between two adjacent heat pipes. The temperature sensing components are located between two adjacent heat dissipation copper sheets. The temperature sensing components include a limiting cylinder connected to the upper heat dissipation copper sheet. An active block is provided inside the limiting cylinder. An expansion member is provided at the top of the active block. The top of the expansion member is connected to the upper heat dissipation copper sheet; an installation post is provided at the bottom of the active block. The bottom of the installation post is connected to the lower heat dissipation copper sheet; An air flow control component is provided between two adjacent heat dissipation copper sheets. The air flow control component includes a large-diameter cylinder fixedly connected to the upper heat dissipation copper sheet. A small-diameter cylinder is slidably connected inside the large-diameter cylinder. The bottom of the small-diameter cylinder is connected to the lower heat dissipation copper sheet. Arrayed through holes are provided on the outer wall of the small-diameter cylinder; A knocking device is provided at the bottom of the small-diameter cylinder. A turning member is provided between the small-diameter cylinder and the large-diameter cylinder.

2. The device for heating a planting greenhouse using a heat pipe according to claim 1, wherein: An elastic member is provided outside the installation post. One end of the elastic member is connected to the lower surface of the active block, and the end of the elastic member away from the active block is connected to the bottom of the limiting cylinder.

3. The device for heating a planting greenhouse using a heat pipe according to claim 1, wherein: The knocking device includes an air inlet hole opened on the surface of the heat dissipation copper sheet. The air inlet hole is in the same straight line as the small-diameter cylinder; a wind wheel is provided inside the air inlet hole at the bottom of the small-diameter cylinder. A knocking block is provided at the top of the wind wheel; Rotating parts are symmetrically provided at the bottom of the small-diameter cylinder. After the knocking block contacts the rotating parts, the rotating parts are driven to deflect.

4. The device for heating a planting greenhouse using a heat pipe according to claim 3, wherein: The rotating parts include rotating blocks. The rotating blocks are rotatably connected to the bottom of the small-diameter cylinder through torsion springs. A wedge-shaped block is fixedly connected to the outside of the rotating blocks. The wedge-shaped block is located inside the small-diameter cylinder. The wedge-shaped block contacts the knocking block; A knocking rod is fixedly connected to the outside of the rotating block. The knocking rod is located outside the small-diameter cylinder.

5. A device for heating a planting greenhouse using a heat pipe, characterized in that: The turning member includes an arc-shaped groove opened on the outer wall of the small-diameter cylinder. The arc-shaped groove does not contact the through holes. A convex block is provided inside the arc-shaped groove. The convex block is slidably connected to the arc-shaped groove. The convex block is fixedly connected to the inner bottom of the large-diameter cylinder; The bottom of the small-diameter cylinder is rotatably connected to the heat dissipation copper sheet. By the convex block squeezing the arc-shaped groove, the small-diameter cylinder rotates self.

6. The device for heating a planting greenhouse using a heat pipe according to claim 1, characterized in that: The heat pipes distributed on the same heat dissipation copper sheet and the large-diameter cylinder are located on the same straight line. The position where the large-diameter cylinder is located is at the midpoint of the straight line formed by two adjacent heat pipes; The limiting cylinders on both sides of a single large-diameter cylinder and the large-diameter cylinder are located on the same straight line. The position where the large-diameter cylinder is located is at the midpoint of the straight line formed by the two limiting cylinders.

7. The device for heating a planting greenhouse using a heat pipe according to claim 4, characterized in that: The two knocking rods on a single small-diameter cylinder are located on the same straight line. When the two knocking rods are parallel to the side of the heat dissipation copper sheet, the ends of the knocking rods are flush with the side of the heat dissipation copper sheet; the knocking rods are made of flexible materials.

8. A device for heating a planting greenhouse using a heat pipe, as claimed in claim 2, wherein: The expansion member includes an expansion airbag, and the interior of the expansion airbag is filled with a gas that expands when heated and contracts when cooled; the elastic member includes a spring, and a pressure sensor is provided at the connection between the spring and the bottom of the limiting cylinder.

9. The device for heating a planting greenhouse by using a heat pipe according to claim 1, characterized in that: The heat pipe includes a housing, a capillary part is provided inside the housing, a vacuum chamber is provided in the middle of the capillary part, and a liquid working medium is provided inside the vacuum chamber.

10. A device for heating a planting greenhouse using a heat pipe, characterized in that: The heat pipe includes a heating section, a heat insulation section, and a condensation section arranged in sequence from top to bottom, and the liquid working medium is arranged in the heating section.

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