Accumulative temperature difference controlled loop heat pipe solar system

A loop heat pipe and liquid level difference technology, applied in the field of solar energy, can solve the problem of too long hysteresis period, and achieve the effects of improving heat release capacity, improving heat exchange efficiency, and increasing vibration range

Active Publication Date: 2021-05-14
SHANDONG UNIV
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AI-Extracted Technical Summary

Problems solved by technology

[0008] However, it is found in practice that if the vibration of the tube bundle is adjusted thro...
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Abstract

The invention provides an accumulative temperature difference controlled loop heat pipe solar system, which is characterized in that n liquid level sensing elements are arranged, the difference Di = Li-Qi-1 between the liquid level Li in the current time period and the liquid level Qi-1 in the previous time period is sequentially calculated, and the n liquid level differences Di are subjected to arithmetic accumulative summation; and when the value of Y is lower than a set threshold value, a controller controls a heat collection pipe box to stop heat collection or continue heat collection; if Y is greater than 0 and lower than the threshold value, the controller controls the heat collection pipe box to stop heat collection; and if Y is smaller than 0 and smaller than the threshold value, the controller controls the heat collection pipe box to stop heat collection. The stable state of the fluid is judged according to accumulation of liquid level difference changes, so that the results are more accurate, and the problem of error increase caused by aging due to the running time problem is solved.

Application Domain

Technology Topic

Loop heat pipeCurrent time +5

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  • Accumulative temperature difference controlled loop heat pipe solar system
  • Accumulative temperature difference controlled loop heat pipe solar system
  • Accumulative temperature difference controlled loop heat pipe solar system

Examples

  • Experimental program(1)

Example Embodiment

[0042]Detailed description of the specific embodiments of the present invention will be described in conjunction with the accompanying drawings.
[0043]In this discipline, if there is no special instruction, "×", "*" means multiplication, "/" indicates division, "×", "*" means multiplication.
[0044]Such asfigure 1 As shown, a heat collecting device includes a collecting tube box 8, a left upper tube 21, a right upper tube 22, and an exothermic tube set 1 including a left discharge heat pipe group 11 and a right amphippoint 12, a left heat pipe. The group 11 is in communication with the left upper tube 21 and the collecting tube box 8, and the right-discharge tube set 12 is in communication with the right upper tube 22 and the collecting tube box 8, thereby causing the collector tube 8, the left upper tube 21, the right upper tube 22 and the exothermic tube set 1. The heating fluid is formed, and the phase-converted fluid is filled in the collector tube box 8, each of which includes a circular arc-shaped plurality of heat pipe 7, and the end of the adjacent heat pipe 7 communicates with the plurality of heat pipes 7. The series structure, and causes the end of the heat pipe 7 to form a free end 3-6; the collecting tube box includes a first juice 10 and a second pipe 13, and the first pipe 10 is connected to the inlet of the left heat pipe group 11. The second tube 13 is connected to the inlet of the right increasing tube set 12, the outlet of the left heat pipe group 11 is connected to the left upper tube 21, and the exit of the right charge pipe group 12 is connected to the right upper tube 22; the first junction 10 and the second pipe 13 is disposed on the side of the collecting tube box 8. As a preferred, the left discharge pipe group 11 and the right amphippoint group 12 are symmetrical along the intermediate position of the collecting tube box.
[0045]As a preferred, the left upper tube 21, the right upper tube 22, and the heat pipe group 1 are disposed in the casing 9, and the flowing fluid is provided in the casing 9, the fluid, preferably air or water.
[0046]Preferably, the left upper tube 21 extends in the horizontal direction and the collector tube 8 along the horizontal direction.
[0047]Preferably, the fluid flows in the horizontal direction.
[0048]Preferably, a plurality of exothermic tube groups 1 extending in the horizontal direction of the collecting tube box 8 along the left upper tube 21, and a parallel structure between the extension pipe group 1.
[0049]Preferably, the left upper tube 21 is provided with a left return tube 14 between the collector tube box 8, and the right upper tube 22 is provided with a right return tube 15 between the collecting tube box 8. Preferably, the return tube is disposed at both ends of the collector tube 8.
[0050]The collecting fluid is filled in the collector tube box 8, preferably a vapor phase transverse fluid. The fluid is heat evaporation in the collecting tube box 8, flowing along the exothermic tubular bundle to the left upper left tube 21, the right upper tube 22 flows, the fluid is thermally charged, thereby forming a vapor, and the volume of steam is much greater than water, thus formed Steam will flow in the coil for fast impact flow. Because the volume expansion and the flow of steam can induce the free end of the venting tube to generate vibration, the heat transfer pipe free ends during vibration, the vibration is transferred to the heat exchange fluid in the casing 9, and the fluid will also generate disturbances. Thereby, the surrounding heat exchange fluid is formed to form a spoiler, the boundary layer, thereby achieving the purpose of strengthening heat transfer. The fluid is reflowed to the collector tank by reflow tube after condensation of the fluid.
[0051]By modifying the prior art, the present invention is provided to two of the upper housing and the exothermic tube set to the left and right distribution, so that the exothermic pipe group distributed left and right sides can vibrate heat transfer, thereby expand the heat exchange vibration. The area can make the vibration more uniform, more uniform heat exchange effect, increase heat exchange area, strengthen heat exchange and descaling effect.
[0052]The above structure has been made to apply, and the present application is to further improve the structure, enhance detergent and heat exchange effect.
[0053]In the operation of the solar collector, although the above structure has an elastic vibration descaling effect, it is necessary to further improve the descaling effect for a long time.
[0054]In the study and practice, the heat collecting of persistence can cause the fluid of the internal heat collecting device to form stability, that is, the fluid is no longer flowing or has little fluidity, or the flow is stable, resulting in the exothermic pipe group 1 vibration performance. Therefore, it affects the detergent of the tube group 1 and the efficiency of heating. For example, continuous heat heat during the day, or continuous heat in the evening, resulting in decline in descaling effect, in the first application, in the first application, or electric heating in the evening, the above-mentioned electricity is very large. improve. However, the above structure needs to be separately provided with an electric heating device, and requires complex electric heating associated assembly, resulting in complex structure, and thus requires the above collecting device to be improved.
[0055]In the present inventors, a periodic heating method is proposed, and the vibration of the coil is constantly promoted by periodic heating mode, thereby increasing the heating efficiency and descaling effect. However, the vibration of the tube bundle is adjusted by a periodic change in fixability, and there will be a hysteresisability and a period of too long or too short. Therefore, the present invention has improved the previous application, and the vibration is intelligently controlled, so that the internal fluid enables frequent vibration, thereby achieving a good descaling effect.
[0056]The present invention provides a new intelligent control vibration descaling collector in the present invention. The collector can achieve a good descaling effect.
[0057]The solar collector includes a step stage in which the collector is taken as follows:
[0058]First, based on pressure autonomous regulation vibration
[0059]Preferably, the pressure detecting element is provided inside the collecting device for detecting the pressure inside the heat collecting device, and the controller extracts pressure data in time sequential, and obtains the pressure difference or pressure difference by comparison of pressure data of adjacent time periods. When the cumulative, lower than the threshold, the controller controls whether the collecting tube box is chorically controlled according to the accumulated pressure difference or pressure differential changes.
[0060]By the pressure differential pressure difference or the accumulated pressure difference detected by the pressure perceived, it is possible to determine that the evaporation of the internal fluid is basically saturated by the pressure difference, and the volume of the internal fluid is substantially changed. In this case, the internal fluid is opposite. Stable, the tube bundle vibration is deteriorated, so adjustment is required to vibrate, thereby stopping the heat. The fluid makes the volume becomes small to achieve vibration. When the pressure difference is reduced to a certain extent, the internal fluid starts to enter the steady state at this time, at which point heat is needed, so that the fluid re-evaporates, and therefore needs to be started.
[0061]By determining the stable state of the fluid by the accumulation of pressure differential or pressure difference changes, the results are more accurate, and the error is not increased due to the aging of the runtime problem.
[0062]As a preferred, if the pressure of the previous period is P1, the pressure of the adjacent time period is P2, if p1 P2, when it is below the threshold, the controller controls collects the collecting tube box.
[0063]By judging the lack of pressure, it is determined that the current collecting tube box is in an aging state or a non-collecting state, thereby determining the operating state of the collecting tube box according to different situations.
[0064]Preferably, if the pressure of the pre-time period is P1, the pressure of the adjacent time period is P2, if P1 = P2, according to the following case, it is determined in the following case:
[0065]If P1 is larger than the pressure of the first data, the controller controls the collecting heat pipe box stopped; wherein the first data is greater than the pressure after phase change in the phase change fluid; preferably the first data is the pressure of the phase change fluid;
[0066]If P1 is less than or equal to the pressure of the second data, the controller controls the collector tube to continue to collect heat, wherein the second data is less than or equal to the phase change of the phase change fluid.
[0067]The first data is a pressure data that is adequately intensive, and the second data is a pressure data that is not intensive or collecting. Through the determination of the above pressure size, it is also to determine the current collecting tube box or a non-collecting state, thereby determining the operating state of the collecting tube box according to different situations.
[0068]Preferably, the pressure perception element is disposed in the collecting tube 8.
[0069]Preferably, the pressure perception element is disposed at the free end. By providing the free end, the pressure changes of the free end can be perceived, thereby achieving better control and adjustment.
[0070]Preferably, the pressure perception element is n, and the current time period pressure is in turn.iPressure Q with the previous timei-1Differential Di= Pi-Qi-1, And N pressure difference DiPerform arithmetic cumulative summation When the value of Y is lower than the set threshold, the controller controls the collecting tube box to stop the heat or continue to collect heat.
[0071]As preferred, y>0, when it is below the threshold, the controller controls the collecting heat pipe box stopped; if y<0, when it is below the threshold, the controller controls the collecting heat pipe box for collecting.
[0072]By judging the lack of pressure, it is determined that the current collecting tube box is in an aging state or a non-collecting state, thereby determining the operating state of the collecting tube box according to different situations.
[0073]As a preferred, if y = 0, it is determined according to the following cases:
[0074]If PiThe arithmetic average is greater than the pressure of the first data, the controller controls the collecting tube box stopped; wherein the first data is greater than the phase change of the phase change fluid; preferably the pressure of the phase change fluid;
[0075]If PiThe arithmetic average is less than the pressure of the second data, and the controller controls the collecting tube box continues to heat, wherein the second data is less than or equal to the pressure of the phase change fluid.
[0076]The first data is a pressure data that is adequately intensive, and the second data is a pressure data that is not intensive or collecting. Through the determination of the above pressure size, it is also to determine the current collecting tube box or a non-collecting state, thereby determining the operating state of the collecting tube box according to different situations.
[0077]As a preferred, the period of time periods of the measurement pressure is 1-10 minutes, preferably 3-6 minutes, and more preferably 4 minutes.
[0078]Preferably, the threshold is from 100 to 1000 Pa, preferably 500 Pa.
[0079]Preferably, the pressure value can be an average pressure value within a period of time. It is also possible to make the pressure of one moment in the time period. For example, it is preferred to be pressure at the end of the time period.
[0080]Second, based on temperature autonomous regulation vibration
[0081]Preferably, the temperature detecting element is provided inside the heat collecting device for detecting the temperature inside the heat collecting device, the temperature detecting element performs data connection with the controller, and the controller extracts temperature data according to the time sequence, through the adjacent time period. Comparison of liquid level data, gaining temperature difference or temperature difference change, when it is below a threshold, the controller controls the collector tube to stop collecting or continuing to collect heat.
[0082]Through the temperature difference between the temperature sensing element or the accumulated temperature bit difference, the evaporation of the internal fluid can be judged by the temperature difference, and the volume of the internal fluid is substantially changed. In this case, the internal fluid is opposite. Stable, the tube bundle vibration is deteriorated, so adjustment is required to vibrate, thereby stopping the heat. The fluid makes the volume becomes small to achieve vibration. When the temperature difference is reduced to a certain extent, the internal fluid starts to enter the steady state at this time, at which point heat is needed, so that the fluid re-evaporates expansion, so it is necessary to perform the starting collector tube box for collecting heat.
[0083]By determining the stable state of the fluid by the accumulation of temperature difference or temperature difference, the result is more accurate, and there is no problem to increase due to aging results in the runtime problem.
[0084]Preferably, if the temperature in the previous period is T1, the temperature of the adjacent time period is T2, if T1 T2, when it is below the threshold, the controller controls the collecting tube box for collecting.
[0085]By judging the lack of temperature, it is determined that the current collecting tube box is in a collecting state or a non-collective state, which determines the operating state of the collecting tube box according to different situations.
[0086]Preferably, if the temperature of the previous period is T1, the adjacent time period temperature is T2, if T1 = T2, according to the following case, it is determined in the following case:
[0087]If T1 is greater than the temperature of the first data, the controller controls the collecting tube stopped heat; wherein the first data is greater than the phase change of the phase change fluid; preferably the first data is a temperature of the phase change fluid;
[0088]If T1 is less than or equal to the second data, the controller controls the collecting tube to continue to collect heat, wherein the second data is less than or equal to the temperature of the phase change fluid.
[0089]The first data is a temperature data sufficiently heat-collecting state, and the second data is a temperature data that is not started or collecting. By judging the above temperature size, it is also to determine that the current collecting tube box is in a collecting state or a non-collecting state, thereby determining the operating state of the collecting tube box according to different situations.
[0090]Preferably, the temperature perception element is n, and the current time period temperature T is calculated.iTemperature Q with a previous timei-1Differential Di= Ti-Qi-1, And pole DiPerform arithmetic cumulative summation When the value of Y is lower than the set threshold, the controller controls the collecting tube box to stop the heat or continue to collect heat.
[0091]As preferred, y>0, when it is below the threshold, the controller controls the collecting heat pipe box stopped; if y<0, when it is below the threshold, the controller controls the collecting heat pipe box for collecting.
[0092]By judging the lack of temperature, it is determined that the current collecting tube box is in a collecting state or a non-collective state, which determines the operating state of the collecting tube box according to different situations.
[0093]As a preferred, if y = 0, it is determined according to the following cases:
[0094]If tiThe arithmetic average is greater than the temperature of the first data, the controller controls the heat pipe box stopped; wherein the first data is greater than the phase change of the phase change fluid; preferably the temperature of the phase change fluid;
[0095]If tiThe arithmetic average is less than the temperature of the second data, and the controller controls the collecting tube box continues to collect heat, wherein the second data is less than or equal to the temperature where the phase change fluid does not have a phase change.
[0096]The first data is a temperature data sufficiently heat-collecting state, and the second data is a temperature data that is not started or collecting. By judging the above temperature size, it is also to determine that the current collecting tube box is in a collecting state or a non-collecting state, thereby determining the operating state of the collecting tube box according to different situations.
[0097]As a preferred, the measurement temperature period is 1-10 minutes, preferably 3-6 minutes, further preferably 4 minutes.
[0098]Preferably, the threshold is 1-10 degrees Celsius, preferably 4 degrees Celsius.
[0099]Preferably, the temperature sensing element is disposed in the collecting tube 8.
[0100]Preferably, the temperature sensing element is disposed at the free end. By setting at the free end, the temperature variation of the free end can be perceived, thereby achieving better control and adjustment.
[0101]Third, based on liquid level autonomous regulation vibration
[0102]Alternatively, a liquid level detecting element is provided inside the collecting tube box for detecting the liquid level of the fluid in the lower tube, the liquid level detecting element with the controller data connection, and the controller extracts the liquid level data according to the time order. The comparison of the liquid level data of the adjacent time period acquires its liquid level difference or the integrated level of liquid level variation, when the threshold is lower than the threshold, the controller controls the collecting tube to stop collecting or continuing collectivity.
[0103]By the predetermined time level difference or the accumulated liquid level difference detected by the liquid level perceived, the evaporation of the internal fluid can be determined by the liquid level, and the volume of the internal fluid is substantially changed. In this case, The internal fluid is relatively stable. At this time, the tubular vibration is deteriorated, so adjustment is required to vibrate, thereby stopping the heat. The fluid makes the volume becomes small to achieve vibration. When the liquid level difference is high to a certain extent, the internal fluid starts to enter the steady state at this time, at which point heat is needed to re-evapofap the fluid, so it is necessary to perform the starting collector tube box for collecting heat.
[0104]By determining the steady state of the fluid by the accumulation of liquid level difference or liquid level variation, the result is more accurate and does not increase the problem due to aging caused by the runtime problem.
[0105]Preferably, if the liquid level is L1 at the time period, the liquid level of the adjacent time period is L2, if L1>L2, when it is below the threshold, the controller controls the collecting tube box stopped; if L1
[0106]By judging the order of liquid level, it is determined that the current collecting tube box is in a collective heat or a non-collective state, thereby determining the operating state of the collecting tube box according to different situations.
[0107]Preferably, if the liquid level is L1 at the time period, the liquid level of the adjacent time period is L2, if L1 = L2, according to the following case, it is determined in the following case:
[0108]If L1 is smaller than the liquid level or L1 of the first data, the controller controls the collecting heat pipe box stopped; wherein the first data is greater than the phase change of the phase change fluid; preferably the first data is a phase-changing fluid sufficient phase. Changed liquid level;
[0109]If L1 is larger than or equal to the second data, the controller controls the collecting heat pipe box continues to collect heat, wherein the second data is less than or equal to the phase change fluid without a phase change.
[0110]The first data is a liquid level data adequately heat-collecting state, including a dry level, and the second data is liquid level data that is not intensified or collecting. Through the determination of the above liquid level size, it is also to determine the current collecting tube box is in a collecting state or a non-intensive state, thereby determining the operating state of the collecting tube box according to different situations.
[0111]Preferably, the liquid level perceive element is n, and the current time period L. L is calculated.iPosition with the previous timei-1Differential Di= Li-Qi-1, And difference to n liquid level DiPerform arithmetic cumulative summation When the value of Y is lower than the set threshold, the controller controls the collecting tube box to stop the heat or continue to collect heat.
[0112]As preferred, y>0, when it is below the threshold, the controller controls the collecting heat pipe box stopped; if y<0, when it is below the threshold, the controller controls the collecting heat pipe box for collecting.
[0113]By judging the order of liquid level, it is determined that the current collecting tube box is in a collective heat or a non-collective state, thereby determining the operating state of the collecting tube box according to different situations.
[0114]As a preferred, if y = 0, it is determined according to the following cases:
[0115]If liThe arithmetic average is smaller than the level of the first data or 0, the controller controls the collecting tube box stopped; wherein the first data is greater than the phase change of the phase change fluid; preferably a phase-changing fluid sufficient phase change. Level;
[0116]If liThe arithmetic average is greater than the liquid level of the second data, the controller controls the collecting tube box continues to collect heat, wherein the second data is less than or equal to a phase change in the phase change fluid.
[0117]The first data is a liquid level data adequately heat-collecting state, including a dry level, and the second data is liquid level data that is not intensified or collecting. Through the determination of the above liquid level size, it is also to determine the current collecting tube box is in a collecting state or a non-intensive state, thereby determining the operating state of the collecting tube box according to different situations.
[0118]Preferably, the measurement is also a period of time period of 1-10 minutes, preferably 3-6 minutes, further preferably 4 minutes.
[0119]Preferably, the threshold is 1-10 mm, preferably 4 mm.
[0120]Preferably, the water level value can be an average water level value within a period of time. It is also possible to make a certain moment in a time period. For example, it is preferred to be the water level at the end of the time period.
[0121]Fourth, based on speed autonomous regulation vibration
[0122]Preferably, the speed detecting element is disposed inside the tube free end for detecting the flow rate of the fluid within the free end of the tube, and the speed detecting element performs data connection with the controller, and the controller extracts the speed data according to the time order, by the adjacent time The comparison of the speed data of the segment obtains the accumulation of its speed or speed difference, when the threshold is lower than the threshold, the controller controls the collector tube stopped collecting or continuing to collect heat.
[0123]Through the speed difference between the speed sensing element detected or the accumulated speed difference, the evaporation of the internal fluid can be determined by the speed difference, and the volume of the internal fluid is substantially changed. In this case, the internal fluid is relatively stable. At this time, the tubular vibration is deteriorated, so adjustment is required to vibrate, thereby stopping the heat. The fluid makes the volume becomes small to achieve vibration. When the speed difference is reduced to a certain extent, the internal fluid starts to enter the steady state, at which point heat is needed, so that the fluid is re-evaporated, so that the start collecting heat pipe box needs to be started.
[0124]By determining the steady state of the fluid by the accumulation of speed difference or speed difference, the result is more accurate and does not increase the problem due to aging results in the runtime problem.
[0125]As a preferred, if the speed is V1 at the time period, the speed of the adjacent time period is V 2, if V1 V 2, when the threshold is lower than the threshold, the controller controls the collecting tube box for collecting.
[0126]By judging the lack of speed, it is determined that the current collecting tube box is in a collective heat or a non-collective state, thereby determining the operating state of the collecting tube box according to different situations.
[0127]Preferably, if the speed of V1 is in the previous period, the speed of the adjacent time period is V 2, if V1 = V2, according to the following case, it is determined by the following condition:
[0128]If V1 is greater than the speed of the first data, the controller controls the collecting tube box stopped heat; wherein the first data is greater than the phase change of the phase change fluid; preferably the first data is the speed of the phase change fluid;
[0129]If V1 is less than or equal to the second data, the controller controls the collecting heat pipe box continues to heat the heat, wherein the second data is less than or equal to the speed of the phase change fluid.
[0130]The first data is a speed data sufficiently heat-collecting state, and the second data is a speed data that is not started or collecting. Through the determination of the above speed size, it is also to determine that the current collecting tube box is in a collecting state or a non-collector, thereby determining the operating state of the collecting tube box according to different situations.
[0131]Preferably, the speed perception element is n, and the current time period speed V is calculated sequentially.iWith a previous time Qi-1Differential Di= Vi-Qi-1, And N speed difference DiPerform arithmetic cumulative summation When the value of Y is lower than the set threshold, the controller controls the collecting tube box to stop the heat or continue to collect heat.
[0132]As preferred, y>0, when it is below the threshold, the controller controls the collecting heat pipe box stopped; if y<0, when it is below the threshold, the controller controls the collecting heat pipe box for collecting.
[0133]By judging the lack of speed, it is determined that the current collecting tube box is in a collective heat or a non-collective state, thereby determining the operating state of the collecting tube box according to different situations.
[0134]As a preferred, if y = 0, it is determined according to the following cases:
[0135]If viThe arithmetic average is greater than the speed of the first data, the controller controls the collector of the heat pipe box; wherein the first data is greater than the phase change of the phase change fluid; it is preferred to be a phase change fluid.
[0136]If viThe arithmetic average is less than the speed of the second data, and the controller controls the collector tube to continue collecting heat, wherein the second data is less than or equal to the phase change of the phase change fluid.
[0137]The first data is a speed data sufficiently heat-collecting state, and the second data is a speed data that is not started or collecting. Through the determination of the above speed size, it is also to determine that the current collecting tube box is in a collecting state or a non-collector, thereby determining the operating state of the collecting tube box according to different situations.
[0138]As a preferred, the measurement speed period is 1-10 minutes, preferably 3-6 minutes, further preferably 4 minutes.
[0139]Preferably, the threshold is from 1 to 3 m / s, preferably 2 m / s.
[0140]Preferably, the speed value can be an average pressure value within a period of time. It is also possible to make the speed of a certain moment within the time period. For example, it is preferred that the speed at the end of the time period.
[0141]Preferably, the heat exchanger comprises a descantage process, and heat exchange is taken in the descaling process.
[0142]As a preferred, the collecting heat pipe box is collectively or uncommon heat through the mirror. When the heat is needed (periodic periods of cycle), the reflective surface of the mirror faces the sun, and when the heat is not required (periodic time), the reflection surface of the mirror does not face the sun. In this way, it can be implemented in a manner of rotating mirrors of a conventional sunlight tracking system, and there is no need to explain in detail herein.
[0143]Preferably, another embodiment can be taken to accomplish whether the collecting tube box is operated or uncommonly charged in such a manner that the collecting tube is located in the mirror focus. When the heat is needed (periodic time), the collecting tube box is located in the focus of the mirror, and when the heat is not required (periodic time), the collecting tube is not in the focus of the mirror.
[0144]Such asfigure 1 As shown, the mirror 16 is divided into two parts along the central portion, respectively, and the first portion 161 and the second portion 162, the first portion 161, and the second portion 162, as shown in FIG. The support member 17 is a support column disposed at the lower portion of the collecting tube box 8, and the hydraulic telescoping rods 171, 172 extend from the support column, respectively, to the first portion 161 and the second portion 162. It is used to drive the first portion and the second part separate or merge. When the first portion and the second portion are combined together, the mirror 16 constitutes a complete mirror, the collecting heat pipe box located at the focus position of the mirror 16, is used to collect heat pipe boxes. When the first portion and the second portion are separated, the heat collecting tube is not located in the first portion and the second portion of the focus, and collects the collector tube box.
[0145]As a preferred, the hydraulic telescopic rod is connected to the driver, and the stretching of the hydraulic telescoping rod is driven by the driver, and the focus of the mirror is changed at position.
[0146]The hydraulic telescopic rod is connected to the support 17 by pivoting manner.
[0147]As an improved embodiment, such asFigure 2-3 ,2-4Indicated. The heat collecting device includes a right hydraulic pump 24, a left hydraulic pump 25, a right hydraulic device 26, and a left hydraulic device 27, a right hydraulic device 26, and the upper left hydraulic device 27, and the upper portion of the left hydraulic device 27 is provided. The telescopic rod passes the pivot. The manner is connected to the lower portion of the second portion 162 and the first portion 161, the right hydraulic pump 24, the left hydraulic pump 25 drives the rising and decrease in the right hydraulic device 26 and the left hydraulic device 27, respectively.
[0148]As a preferred, the apparatus further includes a right support rod 28 and a left support rod 29, the right support rod 28 and the left support rod 29 include a first component and a second member, and the first component is located at the lower portion, the lower end of the first component. By pivoting, the second component is a telescopic rod, and the upper end of the telescoping rod is coupled to the first portion 162 and the second portion 162 by pivoting. The telescopic rod can be extended within the first component. The right support rod 28 and the left support rod 29 are used to support the mirror such that the mirror remains at the lower portion. For example, the first portion of the mirror and the second portion are integrally formed, and the support of the right support rod 28 and the left support rod 29 is held in the respective position such that the collecting tube 8 is located in the mirror focus position.
[0149]Preferably, the first member is a rod, the rod opening, thereby enabling the telescoping rod to be extended within the first component.
[0150]Preferably, the right support rod 28 and the left support rod 29 also use a hydraulic manner, a hydraulic pump is provided separately, and the first member is a hydraulic device, and retractable by a hydraulic pump drive a telescopic rod. The specific structure and the right hydraulic device 26 are similar to the left hydraulic device 27.
[0151]Figure 7The specific structure of the hydraulic pump is shown. Such asFigure 7As shown, the hydraulic pump includes an eccentric wheel 30, a one-way valve 31, a cylinder 32, a shutoff valve 33, a plunger 34, and an eccentric wheel 30 connecting plunger 34. The plunger 34 is disposed within the plunger chamber 38, and the plunger 38 is connected to the hydraulic pump. The hydraulic pump includes a cavity, and the upper portion of the cavity is provided, the lower end of the telescopic rod is the same as the outer diameter of the hydraulic pump cavity, and the rod-shaped structure 40 extending in the middle of the plate-shaped structure 40, the rod-shaped structure 40 projects the hydraulic pump. The cavity is connected to the mirror.
[0152]The lower portion of the cavity is provided between the cylinder 32, the cylinder, and the telescopic rod, which supplies the liquid from the lower cylinder to the upper portion to push the telescopic rod upward; two one-way valves are disposed in the plunger chamber and hydraulic pump, respectively. The upper and lower portions of the communication position; the two one-way valve 31 is disposed on the opposite side of the plunger chamber and the hydraulic pump connection (away from the side of the plunger chamber and the hydraulic pump connection position). The release wall 37 has a certain distance between the plunger chamber of the cavity and the relative side wall of the hydraulic pump communication position, and a shut-off valve 33 is provided. The opening of the shut-off valve is opened to flow from the upper portion into the lower cylinder 32 from the upper portion.
[0153]When the mirror rises so that the device stops the heat collecting heat, the right hydraulic press pump 24 and the left hydraulic pump 25 can be driven, and the eccentric wheel 30 can drive the plunger 34 reciprocating. When the plunger 34 is shifted, a vacuum is generated in the cylinder, and the oil is inhaled by one-way valve, and the oil absorption process is completed. When the plunger 34 is left, the oil in the cylinder will be input into the hydraulic system through the one-way valve 31. The cam is continuously rotated, and the mirror is raised.
[0154]When the mirror is lowered, when the device starts collecting heat, the shut-off valve 33 can be opened, and the oil in the upper portion of the hydraulic system flows back into the cylinder, so that the mirror is attributed to the in situ under the action of gravity.
[0155]Of course, the hydraulic pump is also a very mature technology in the prior art.Figure 7The embodiment is simply a simple introduction, not limiting. All hydraulic pumps in the prior art can be used.
[0156]Descaling time is preferably carried out after a solar collector runs for a period of time. It is preferably carried out when the collecting effect is deteriorated.
[0157]As a preferred, the exothermic tube of the left heat pipe set is a central distribution at the axis of the upper left tube, and the exothermic tube of the right increasing tube set is a central distribution of the axis of the right tube. By setting the left and right tabs to a center, it can better ensure the distribution of the heat pipe, so that vibration and heat are uniform.
[0158]Preferably, the left discharge heat pipe group is plural.
[0159]Preferably, the left heat pipe group and the right charge tube group are symmetrical symmetrical symmetry along the vertical direction axis of the collecting tube box. By this setting, it is possible to make the heat transfer tube distribution more reasonably and uniform, improve heat exchange effect.
[0160]Preferably, the collector tube 8 is a flat tube structure. The heat absorbing area is increased by setting the flat tube structure. It is made to ensure that the collecting tube box 8 is located at the focus position of the mirror.
[0161]Preferably, the left discharge heat pipe group 11 and the right radius set 12 are missed in the horizontal extension direction, such asFigure 5 Indicated. Through the missed distribution, vibration and descaling can be made on different lengths, so that the vibration is more uniform, and the heat exchange and descaling effect can be enhanced.
[0162]Preferably, a mirror 16 is provided at a lower portion of the collecting device, and the collecting heat pipe box is located at the focus position of the mirror 16, where the left heat pipe group and the right increasing heat pipe group are located in the fluid passage. Thereby a solar collector system is formed.
[0163]Preferably, the support member 17, the support member 17 supports the heat collecting device.
[0164]Preferably, a fluid passage flows in a fluid channel. As shown in FIG. 2, the collecting heat pipe box 8 is located at the lower end of the fluid passage, as shown in FIG. Left upper tube 21, the right upper tube 22, the left heat pipe group 11 and the right amphip stopper set 12 are disposed in the fluid passage, by exothermic fluid in the heating fluid passage.
[0165]Preferably, the flow direction of the fluid is the same as the left upper tube 21, and the right upper tube 22 is the same as the direction in which the collecting tube box 8 is extended. By this setting, the fluid is blown in the flow of the heat transfer pipe group, especially the free end of the exothermic tube set, so that the free end vibrates, thereby strengthening heat transfer to achieve descaling.
[0166]Preferably, the fluid tube set 1 (e.g., on the left or right side)) is provided along the flow direction of the fluid in the fluid passage, along the flow direction of the fluid in the fluid passage, and heat Group 1 (eg, the diameter of the same side (left or right) is constantly large.
[0167]Along the flow direction of the fluid, the fluid temperature is constantly increasing, thereby constantly reduced the temperature of the heat transfer temperature, and the heat transfer capacity is getting larger. By becoming the diameter of the heat-insulating tube, more steam can be ensured to enter the exothermic tube set in the upper portion, ensuring that the fluid flow direction, because the vapor is large and the vibration effect is good, so that the overall heat is uniform. The distribution of steam in all exothermic tube groups is uniform, further strengthened the heat transfer effect, so that the overall vibration effect is uniform, the heat transfer effect is increased, and further improve the heat exchange effect and the descaling effect.
[0168]Preferably, the radial heat pipe group (e.g., such as one side (left or right side) is constantly increasing, along the flow direction of the fluid in the fluid in the fluid channel.
[0169]By this setting, the fluid is avoided to heat exchange in the front, and the heat exchange is increased toward the rear to form a heat exchanger such as countercurrent. Through experiments, this structure design can achieve better heat exchange effect and descaling effect.
[0170]Preferably, the flow direction of the fluid in the fluid passage, the same side (left or right side) the heat-insulating tube set is provided, from the upward direction, the same side (left or right) adjacent The spacing of the heat transfer tube is constantly smaller. The specific effect is similar to the effect of the previous pipe diameter.
[0171]Preferably, the spacing between the fluid in the fluid in the fluid channel is constantly increasing. The specific effect is similar to the effect of the previous pipe diameter.
[0172]In the test, the volume, distance, and the volume of the upper right upper tube 22, and the volume of the collector tank can have an effect on heat exchange efficiency and uniformity. If the volume of the collector is too small, the steam is overheating, the heat cannot be transferred to the exothermic tube and the upper left tube, which is too high, causing the steam condensation, and cannot be transmitted, the left upper tube 21, the upper right upper tube 22 The volume must be applied with the collecting tank volume, otherwise the steam condensation is too fast or too slow, which will cause deterioration of heat transfer, and the distance between the left upper tube 21, the upper right upper tube 22 can also cause too poor heat transfer efficiency, distance too Small, the release tube distribution is too dense, and the heat transfer efficiency, the distance between the left upper tube 21, and the right upper tube 22 also needs to be applied with the distance between the collector box, otherwise the distance between them affects the accommodation. The volume of liquid or vapor, affects the vibration of the free end, thereby affecting heat transfer. Therefore, the volume, distance, and the volume of the upper right upper tube 22 have a certain relationship of the volume, distance, and the volume of the collector tank.
[0173]The present invention is a numerical simulation of a plurality of different sizes and the best dimensional relationships summarized in test data. From the largest heat exchange in the heat exchange effect, nearly 200 forms were calculated. The dimensional relationship is as follows:
[0174]The upper left tube 21, the volume of the right upper tube 22 is V1, V2, and the volume of the collector is V3, the midpoint of the bottom of the collector box and the upper left tube 21, the upper right upper tube 22 is formed between the angle A, satisfied The following requirements:
[0175](V1 + v2) / v3 = a-b * sin (A / 2)2-c * sin (a / 2); where A, B, C are parameters, SiN is a triangular normal mystery function,
[0176]0.8490
[0177]Preferably, the angle A formed between the bottom of the collector box body and the left upper tube 21, the right upper tube 22 is 40-120 degrees (angle), preferably from 80 to 100 degrees (angle).
[0178]As a preferred, 0.72 <0.85;
[0179]The distance between the center of the left upper tube 21 and the center of the upper right tube 22 is m, the upper left tube 21, the upper right tube 22 is the same, B, the radius of the axis of the outermost heat pipe in the heat pipe is N1, the most The radius of the axis of the outer heat tube is W2,
[0180]As a preferred, 35
[0181]Preferably, the amount of heat excited tube of the heat exchanger set is 3-5, preferably 3 or 4.
[0182]Preferably, the radius of the heat pipe is preferably 10-40 mm; preferably from 15 to 35 mm, still more preferably 20-30 mm.
[0183]Preferably, the 110 angle is preferably 120 angles between the ends of the free ends 3, 4 is a center axis of the left collection. The same radicals 5, 6 and the free ends 3, 4 are the same. Through the design of the above preferred angle, the vibration of the free end is optimized, so that the heating efficiency is optimal.
[0184]As a preferred, V1 = V2 is preferred.
[0185]The distance between the center of the left upper tube 21 and the center of the left upper tube 22 is only the distance between the center of the left upper tube 21 and the upper left tube 21, the radius of the right upper tube 22 is the axis of the innermost heat pipe in the radial heat pipe. The radius of the radius is N1, the radius of the axis of the outermost heat pipe is W2, the present invention first associates the upper left upper tube 21, the volume of the upper tube 22, and the volume of the collecting tank are associated with the optimal relationship. Size relationship. The above relationship of the present application is aimed at the same improvement in the relationship between the prior application, and is an original inventive point of the present invention by volume and angle.
[0186]Preferably, the tube bundle of the heat exchanger set 1 is an elastic tube bundle.
[0187]The heat exchange coefficient can be further improved by setting the elastic tube bundle of the tube bundle of the exothermic tube set 1.
[0188]The heat exchanger group 1 is a plurality of, and the plurality of exothermic pipe groups 1 are in parallel.
[0189]While the invention has been disclosed in a preferred embodiment, the present invention is not limited thereto. Those skilled in the art can make various fracture and modifications without departing from the spirit and scope of the invention, and therefore the scope of the invention should be based on the scope of the claims.
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