99 results about "Trombe wall" patented technology

The invention discloses a method for calculating the temperature of the tube wall of a platen superheater of an ultra supercritical boiler by the assistance of numerical simulation. The method comprises the steps of: step (1) modeling the whole boiler containing the platen superheater, and constructing a mathematical model of a calculating method for the temperature of the tube wall of the superheater; step (2) conducting the numerical simulation on the constructed mathematical model to obtain the smoke temperature and smoke speed distribution nearby a platen superheater calculation area, selecting calculating data which are taken as initial conditions of the thermodynamic calculation and the hydrodynamic force calculation of the platen superheater; step (3) calculating the temperature of the wall of the platen superheater by utilizing the thermodynamic calculation and the hydrodynamic force calculation; step (4) checking and calculating the obtained tube wall of the whole platen superheater; and step (5) outputting a calculated result. According to the calculation method, the advantages of both the numerical simulation and the thermodynamic calculation can be considered, the detail wall temperature distribution in the boiler can be obtained, and meanwhile, the accuracy of the temperature wall result is also improved.

The invention relates to a Trombe wall with the comprehensive application of solar heat collection and radiation refrigeration. The Trombe wall comprises a transparent cover plate, a heat collection and storage wall, an air flow channel, upper ventilation openings, lower ventilation openings and baffles. The transparent cover plate is made of full-wave band high transmittance material. A venetian blind is arranged on the inner side face of the transparent cover plate, one side faces of slats of the venetian blind are coated with selective absorbing coatings, and absorptivity of the coatings ranges from 90% to 95% within the solar radiation wave band ranging from 0.2 micrometer to 3 micrometers. The other side faces of the slats of the venetian blind are selective radiation surfaces, emissivity of the selective radiation surfaces ranges from 80% to 90% within the atmospheric window wave band ranging from 8 micrometers to 13 micrometers, and emissivity of the selective radiation surfaces ranges from 60% to 90% within other wave bands. The Trombe wall can heat a room in the daytime and preserve heat of the room at night in winter, and can reduce heat loads of the room in the daytime and refrigerate the room at night in summer, and therefore the problem that a traditional Trombe wall can only heat the room and is single in function is solved; the defect that the appearance of the traditional Trombe wall is not attractive enough is overcome due to the utilization of the venetian blind attractive in appearance.

The invention relates to a dimpled enhanced heat exchange tube, which comprises a base tube and dimple groups formed by ellipsoid crown type dimples which are processed from the external wall of the base tube to the inside according to certain array on the tube wall of the base tube, wherein the dimple groups are evenly distributed along the axial direction of the base tube according to certain cycle and separation distance. Because the base tube is processed with the novel dimples, the comprehensive performance of the heat exchange tube is improved compared with the former similar heat exchange tubes. The dimpled enhanced heat exchange tube has the following characteristics: 1, the ellipsoid crown type dimples increase the heat transfer area in the tube and increase the flow velocity of fluid; 2, boundary layers of the inner wall of the tube are destroyed more effectively; 3, the ellipsoid crown type dimples having certain included angle with the axial direction make the fluid generate longitudinal vortexes; and 4, the continuous changes of the cross section of the tube and the generated pressure changes increase the turbulivity of the fluid in the tube to further improve the tube side heat exchange coefficient, and while the tube side heat exchange coefficient is improved, the ellipsoid crown type dimples having certain included angle with the axial direction make the fluid generate secondary flow which has smaller increase to the fluid resistance, thus the effect of improving the comprehensive heat exchange performance is achieved.

The invention belongs to an inorganic chemical synthesis method and in particular relates to a preparation method of a cobalt sulfide micro tube with hiberarchy structure; in the invention, water-soluble cobalt salt is used as a metal source, thioacetamide is used as a sulphur source, ethanediamine is used as metal chelating agent, and cetyl trimethylammonium bromide CTAB is used as a template agent, in a closed reactor, hydro-thermal reaction is carried out under a certain temperature condition, so as to synthesize the micron tube-like cobalt sulfide with the hiberarchy structure, the outer diameter of the tube is about 1.5micron, the thickness of the tube wall is about 400nm, the average length is about 15micron, the tube wall is a nanoscale hexagonal sheet, and the length and the thickness of the sheet are 90nm and 22nm respectively; the synthesis method has the advantages of cheap and easy-obtaining raw material, simple equipment, low reaction temperature and good process repeatability and overcomes the problem of environment pollution caused by organic solvent in the previous synthesis method; the obtained product has wide application prospect in the field of biology, catalysis and material science and the like.

The invention discloses a self-regulating phase change Trombe wall. The self-regulating phase change Trombe wall is composed of a glass layer (1), an air layer (2), a first phase change wall layer (3), a first thermal insulating layer (4), a concrete wall layer (5), a second thermal insulating layer (6) and a second phase change wall layer (7) which are sequentially arranged from outside to inside, wherein the phase change temperature of the first phase change wall layer (3) is 27-29 DEG C; the phase change temperature of the second phase change wall layer (7) is 17-19 DEG C; both the first phase change wall layer (3) and the second phase change wall layer (7) are obtained by melting and blending the raw materials including high-density polyethylene, expanded graphite and paraffin. By improving the key heat storage wall structure, the setting manner of the heat storage wall structure, the setting mode of a ventilation port, the switching conditions of opening and closing states and the like, the self-regulating phase change Trombe wall can effectively solves the problem in the prior art that Trombe walls are insufficient in heat supply in winter days without sun or too hot in summer.

The present invention relates to a pipe heater encircled conduit device (1), in which a heating element (111) wrapped with a filament (112) having high resistance is provided and a hollow quartz inner tube (113) is inserted at the outside of said heating element (113) to form a pipe heater (11), both ends of the heating element (111) being connected with an electrode pin (114) respectively. A hollow quartz outer tube (123) is inserted at the outside of the pipe heater (11), which has an inlet (121) and an outlet (122) on the tube wall. A heat transfer space (A) is thus formed between the inner quartz tube (113) and the outer quartz tube (123), and insulation members (124) are combined with the respective opening end of both tubes. By the arrangement of the inner and outer quartz tubes. (113), (123), the heat energy generated by the pipe heater (11) formed by the heating element (111) and the hollow inner quartz tube (113) can be transferred to the medium which is introduced from the inlet (121) and exhausted from the outlet (122). Thus, the medium can be heated by the heat energy generated by the heating element (111) itself by both actions of heat conduction and heat radiation.

The invention relates to a noise power generation device and a power generation method. The device comprises an acoustic waveguide tube (1), an acoustical-electrical transduction unit (2) which is coupled with the acoustic waveguide tube (1), and an output bus (8) which is connected with the acoustical-electrical transduction unit (2), wherein the acoustical-electrical transduction unit (2) comprises an acoustical Hormuz resonator (3) which consists of small holes (5) and a cylindric hollow chamber (6), and an acoustical-electrical transducer (4) which is positioned at a tail end of the hollow chamber (6); the small holes (5) are formed at the periphery of tube walls of the acoustic waveguide tube (1) in a matrix form; the cylindric hollow chamber (6) is fixed on the tube walls of the acoustic waveguide tube (1); and the symmetry axes of the cylindric hollow chamber (6) and the small holes (5) are at the same straight line. Due to the combination of the acoustical Hormuz resonator (3) and the acoustical-electrical transducer (4), the noise power generation device has a higher output electric power and is an efficient noise power generation device which has selectable frequency band and can be integrated.

The invention discloses a solar heat collection and ventilation system for a passive house. The solar heat collection and ventilation system is composed of a TROMBE wall, a slanting roof solar chimneyand a two-phase closed type thermosiphon, wherein the TROMBE wall comprises a transparent glass cover plate, an air interlayer, a heavy wall, an air valve, a heavy wall upper indoor air inlet and a heavy wall lower indoor air outlet; the slanting roof solar chimney is composed of a transparent cover plate, an air interlayer, a slanting roof, a heat absorption plate and a heat insulation plate. Anair baffle is arranged at the junction between the slanting roof solar chimney and the TROMBE wall; the two-phase closed type thermosiphon is composed of an evaporator, a condenser, a rising air pipe, a downflow liquid pipe and control valves. Through the solar heat collection and ventilation system, the defects that a traditional heat collection and ventilation system is single in function and poor in effect are overcome. The solar heat collection and ventilation system has the advantages of being high in heat collection and ventilation ability, diversified in function and easy to operate and not consuming energy. The solar heat collection and ventilation system is used for conducting natural ventilation and preventing indoor overheat in summer and making domestic hot water and can achieve solar hot air heating and fresh air preheating in winter.

Method for constructing a radome (110). The method can include the steps of providing a radome structure, wherein the radome structure can include at least one of a radome wall (115) and a radome frame (120). The radome structure can be impedance matched to an operational environment. The impedance match can be independent of the thickness and geometry of the radome structure.

The invention discloses a solar multifunctional wall, relates to application of a solar heat collection, dehumidification and air purification technology and belongs to an energy utilization technology and the field of indoor air purification. The solar multifunctional wall is capable of solving the problems that a traditional Trombe wall is single in function, is only capable of heating or ventilation and cannot make full use of absorbed solar heat in summer. The solar multifunctional wall is capable of heating and removing aldehyde in a room in winter and dehumidifying and removing aldehyde in the room in summer. A crawler-type silica gel rotating wheel is prepared by mixing silica sol with nano titanium dioxide; the surface of the solar multifunctional wall is provided with an alveolate porous passage; opening and closing of a baffle and rotation of the rotating wheel are controlled according to different climatic environments, formaldehyde removal and indoor air purification can be achieved on the basis of heating or dehumidifying dry air.

A discharge tube (31) provided inside the cavity of a waveguide (4) is so structured as to monotonously decrease the cross section of the cavity in the direction in which the microwave travels and thereby to close the cavity. The waveguide (34) has vent holes (34a, 34c) made through the tube wall. A metallic member (32) monotonously decreasing the cross section of the cavity in the direction in which the microwave travels and thereby closing the cavity is provided on the opposite side to the discharge tube (31) in the direction in which the microwave travels. A fluid is made to flow through the metallic member. A gas introducing port is provided in the discharge tube (31), and a gas exhaust port is provided also in the discharge tube (31) on the opposite side to the gas introducing port with respect to the center axis of the waveguide (34). Thus, no standing wave is generated from the time when a plasma is created, the plasma absorbs energy at high efficiency, the temperature at the wall of the discharge area little increases, and the density of active particles is high.

The invention discloses a gas standing wave determination experimental device and belongs to the technical field of gas standing wave determination experiment. A standing wave tube is a transparent tube; a first loudspeaker and a second loudspeaker are arranged in the standing wave tube respectively; the sound wave emitting surfaces of the two loudspeakers are opposite to each other and are perpendicular to the axial center line of the standing wave tube respectively; the first loudspeaker is in fixed seal fit with the standing wave tube; the second loudspeaker is in sliding contact fit with the standing wave tube; the two loudspeakers are connected with a signal generator respectively; a graduated scale is arranged on the outer tube wall, parallel to the axial center line of the standing wave tube, of the standing wave tube; the zero-point graduation line of the graduated scale is positioned on a plane where the sound wave emitting surface of the first loudspeaker is located; a plurality of pressure sensors are arranged on the outer tube wall of the standing wave tube, are uniformly distributed along the axial center line of the standing wave tube, are hermetically communicated with an inner tube cavity of the standing wave tube and are connected with a computer; a smoke inlet is formed in the tube wall of the standing wave tube between the two loudspeakers; a smoke outlet of a smoke generator is communicated with the smoke inlet of the standing wave tube.

The invention belongs to the technical field of mechanical pollination, in particular to a pollinator suitable for high branch pollination. The pollinator includes a powder storage tank, wherein an L-shaped tube runs through the bottom surface and the side surface of the powder storage tank, the bottom of the L-shaped tube communicates with a telescopic airflow lifting rod, and the lower part of the airflow lifting rod is connected with an electric blower; and an air injection port is located on one side of the L-shaped tube, and a rectangular hollow groove is located on one side of the L-shaped tube wall, and a wheel plate is horizontally installed at a position where the rectangular hollow groove is located. Compared with the prior art, the pollinator has the following advantages: the airflow lifting rod buffers the wind speed of the electric blower to a certain extent, the operable space of the pollinator is expanded as well, the length of the airflow lifting rod is adjusted according to the height of the flowers to be pollinated, the pollinator is turned on above the flowers to be pollinated, and pollens are blown out evenly and can fall on female plants stably; and the wheel plate can continuously carry a small amount of pollens into the L-shaped tube, thereby the coefficient of utilization of pollens is improved and waste of pollens caused by being blown out in large amount is avoided.

The invention relates to a lithium battery with a built-in metal guide tube. The lithium battery comprises a shell, a battery cell and at least one metal guide tube, wherein the battery cell is arranged in the shell, and the metal guide tube penetrates through the inner part of the battery and the shell; when a plurality of metal guide tubes exist, the plurality of metal guide tubes can be sleeved inside a heat-conducting casing pipe; and in addition, because a plurality of through holes are distributed on the surface of a tube wall of each metal guide tube, heat produced in the inner cavities of the battery cell and the shell can be conducted into each metal guide tube through the plurality of through holes distributed on the surface of the metal guide tube, and then, conducted to the outside of the shell through each metal guide tube. The lithium battery disclosed by the invention has the advantages of simplicity in structure, convenience for production and control, and capability of conducting the heat, electricity and air through each metal guide tube in the battery cell of the lithium battery, so that the effect of conducting the heat in the center of the battery cell is achieved, and the effects of facilitating heat radiation, shortening a collector electrode, reducing internal resistance, reducing thermal consumption, balancing internal pressure of the battery and the like are achieved.

The present invention provides a display device that can replace patterns manually, does not consume canvas, is convenient to transport and install, low in price, low in energy consumption, natural and comfortable in light, and adopts electromagnetic control. The technical solution adopted is: The outer surface of the wall is coated with several groups of ring-shaped color layers in order, and several groups of soft magnetic electromagnetic coils are wound around the hollow tube and correspond to the positions of the ring-shaped color layers one by one. The direction of the magnetic field of the fixed magnet electromagnetic coil in the fixed magnet is the same or opposite, so as to control the moving position of the moving soft magnet in the hollow tube, and then affect the reflection position of the reflective material layer on the outside of the moving soft magnet to the incident light, so that the electromagnetic color can be displayed The color of the tube is changed, and the purpose of displaying the pattern is realized through an array of several electromagnetic color display tubes.

The invention discloses a phase-change heat storage type trombe wall system which comprises light-transmitting glass and a trombe wall. Ventilation openings are formed in the upper side and the lowerside of the light-transmitting glass and the upper side and the lower side of the trombe wall respectively, and a first air channel is formed between the trombe wall and the light-transmitting glass.The trombe wall comprises a heat collection plate, a thermoelectric power generation device, a phase change heat storage device, a thermoelectric refrigeration device and a heat insulation plate, a second air channel is formed between the thermoelectric refrigeration device and the heat insulation plate, a fifth ventilation opening and a sixth ventilation opening are formed in the heat insulationplate, and at least one of the second air channel, the fifth ventilation opening and the sixth ventilation opening is provided with an air driving assembly. The thermoelectric power generation deviceand the phase change heat storage device improve automatic ventilation, solar energy utilization rate and ventilation stability of a traditional trombe wall; a sandwich structure of the thermoelectricpower generation device, the phase change heat storage device and the thermoelectric refrigeration device effectively improves the situation of unstable thermoelectric power generation; and the thermoelectric power generation device drives a thermoelectric refrigeration element and the air driving assembly to promote the indoor environment to be stable, and the efficient adjusting effect can be achieved.

The invention relates to an assessment method for the heat exchange tube wall sinking degree based on eddy current testing. The assessment method comprises the following steps: (1) manufacturing a sampling tube which has the same material and size of a heat exchange tube to be detected, and pressing a plurality of sink marks on the outer surface of the heat exchange tube through a steel bar perpendicular to the axis of the heat exchange tube; (b) measuring the length L of each sink mark, the outer radius R of the heat exchange tube to be detected and the radius r of the steel bar, and calculating the tube wall sinking area S of each sink mark; (c) performing eddy current testing on the sampling tube with the pressed sink marks to obtain an amplitude value V of each sink mark, introducing the areas S and the amplitude values V into a formula (2) to obtain a plurality of groups of A values and B values, and averaging the A values and the B values to obtain A1 and B1; (d) performing eddy current testing on the heat exchange tube to be detected to obtain an amplitude value V of tube wall sinking of the heat exchange tube, and introducing the amplitude value V, the A1 and the B1 into the formula (2) to calculate a sinking area of the tube wall. Through the adoption of the assessment method, the sinking degree of the tube wall can be known visually and clearly, so that basis is provided for the treatment decision of the heat exchange tube to be detected.

Systems and methods for heat exchange in accordance with the invention define adequately long-interchange distances for two fluids by wrapping a tube containing a first fluid about the wall of an inner cylindrical tank, within a gap formed with a second concentric tank. A second fluid is transmitted in the space defined between the turns of the tube and the two walls, providing effective short length thermal interchange through the tube walls. The tube is in the line contact with both tank walls and the fluids can flow rapidly over an adequately long length, so that high efficiency is provided in a low cost system.

The invention discloses a filtering plate which has simple structure, small space usage, light deadweight, short construction period, low cost and low energy consumption, and is uneasy to leak sand, can filtrate in double directions-positive and negative directions and can evenly distribute water and gas. The invention contains a plurality of funnels (1). The superior walls between the funnels (1) are extended outward and through which the funnels are connected together. The funnel (1) contains a bucket part (2), which is arranged on the upper part of the funnel, and a guide tube part (3), which is arranged on the lower part of the funnel. A plurality of water and gas distributing holes (4) are arranged on the tube wall of the guide tube part (3). The bottom of the guide tube part (3) is sealed. The invention can be widely applied in water treatment filtration process.

The invention discloses a plant physiological effect indicator. The plant physiological effect indicator which comprises a pedestal, a transparent bell cover, a transparent tube, a buffering agent box, a humidity measurer and a U-shaped tube is characterized in that: the transparent bell cover which is arranged on the pedestal is communicated with one end of the U-shaped tube through a glass tube, and the other end of the U-shaped tube is open; the buffering agent box which is arranged in the glass bell cover is provided with a carbon dioxide buffering agent therein; the humidity measurer is arranged in the glass bell cover; and corresponding zero scales are marked on the bottom of two sides of the tube wall of the U-shaped tube, and a colored liquid column which is arranged in the U-shaped tube is arranged under the zero scales of the U-shaped tube. The carbon dioxide buffering agent preferably selects a NaHCO3 / H2CO3 buffering agent. The plant physiological effect indicator which allows intensities of photosynthesis, respiration and transpiration in the growth of plants to be effectively and visually observed has the advantages of simple operation and low cost.

The invention discloses a QuEChERS one-step type pretreatment device. The QuEChERS one-step type pretreatment device comprises an outer sleeve 1 and an inner sleeve 2 inserted into the outer sleeve; an outer tube thread 1-1 is arranged on the inner wall of an opening end of the outer sleeve 1; an inner tube thread 2-1 matched with the outer tube thread 1-1 is arranged on the outer wall of the inner sleeve, a movable piston 3 is arranged at the lower end, and a filter net 4 is arranged in the middle; an inner tube small hole 2 is formed in the tube wall between the piston 3 and the filter net 4; and the piston 3 is in sealing fit with the inner wall of the inner sleeve 2. According to the device, effective extraction of the medicine in the blood of a biological sample and purification of ablood matrix can be successfully realized, the analysis sample can be obtained in one step, and instrument analysis can be directly carried out. According to the device, the operations of the QuEChERSmethod can be completed only in the sleeve, the material is saved, and the space is saved; the device is a high-efficiency and environment-friendly pretreatment analysis device which can be widely applied to sample pretreatment of forensic medicine and forensic clinical analysis.

The invention discloses a medical bracelet and a control method thereof and a dropping liquid monitoring system. The medical bracelet comprises a bracelet body, a tube clip, a pressure probe, a motorand a controller. The tube clip is fixed to the bracelet body, and infusion tube clamping groove is formed in the inner side of the tube clip. The pressure probe is mounted on the bracelet body and protrudes out of the surface of the bracelet body. A pressure sensor is arranged at the top end of the pressure probe, and when an infusion tube is arranged in the infusion tube clamping groove and is clamped and fixed to the bracelet body through the tube clip, the pressure sensor abuts against the tube wall of the infusion tube. The controller receives infusion tube pressure detection data detected by the pressure sensor, and when the infusion tube pressure detection data is smaller than a set threshold value, the motor is controlled to drive the pressure probe to move and presses the infusiontube to stop infusion. Therefore, the situation of blood return is avoided, the technical problem that during existing intravenous dripping, the situation that liquid medicine drips off cannot be found in time, and consequently blood return is caused is solved, and meanwhile the treatment experience of doctors and patients is improved through self alarming and alarming to an upper computer.

The invention discloses a power plant of a water surface ship. The power plant comprises a pulse detonation tube and an engine inclined tube body, wherein the engine inclined tube body is divided into an inclined section and an outlet section, and a buckling is arranged between the inclined section and the outlet section; the port of the inclined section of the inclined tube body of an engine is coaxially connected with the outlet of the pulse detonation tube by virtue of a flange, and the tube wall of the inclined section is provided with a pressure probe; a controllable water inlet with a close device is arranged on the tube wall of the inclined section, and a signal processing system and a steering engine are connected between the close device and the pressure probe in series; the projected area of the outlet section of the controllable water inlet on the transverse section is at least 50% of that of the outlet section port; and when the power plant of the water surface ship works, the outlet section of the engine inclined tube body is below the water surface, and the controllable water inlet is below the water surface. According to the invention, the high temperature, high voltage, high speed fuel gas and detonation waves are generated by adopting the detonation tube to propel the fluid to be exhausted to generate push power.

The invention discloses a method for controlling the unfolding of an inflatable film tube of a spacecraft, comprising: 1. coating the interior of the inflatable film tube with viscous material; 2. flattening the film tube laterally along the tube wall, curling and folding it on a curling roller; 3. Fill one end of the film tube with gas to realize the full expansion of the inflatable film tube; 4. Set a restraint mechanism outside the expanded film tube for directional expansion or drive other auxiliary devices. The invention solves the problems in the prior art that the inside of the film unfolding structure cannot be completely evacuated and cannot be effectively controlled, and achieves beneficial effects such as light weight and easy control of unfolding speed.

The invention discloses a production technology for a quick coupling tube, and belongs to the technical field of coupling tubes. The production technology comprises the following steps of: 1) primary flaring; 2) primary shaping; 3) pipe contraction; 4) secondary shaping; 5) secondary flaring; 6) forming convex rings. The product produced by the production technology has an integral structure, and has the advantages of even tube wall, high firmness, attractive appearance, low cost, convenient and reliable use and long service life; therefore, the production technology for the quick coupling tube is applicable to quick coupling tubes of water heaters and plumbing pipe fittings.

The present invention provides an internal antenna type plasma processing device which is easily maintained and capable of producing stable plasma. The plasma processing device has a plurality of antenna units 20 provided in the top wall 111 of a vacuum chamber 11. Each of the antenna units 20 includes: a dielectric housing 21 provided to protrude into the vacuum chamber 11 from the top wall 111 of the vacuum chamber 11; a cover 22 having a second gas discharge port 25 for discharging the atmosphere in the housing to the outside of the vacuum chamber; and a radio-frequency antenna 23 formed by a conductor tube which is fixed to the cover 22 by way of a feedthrough 24 and has gas passage holes 232 in its tube walls. An inert gas is supplied into the tube of the radio-frequency antenna 23, and the inside of the housing 21 is filled with the inert gas provided through the gas passage holes 232. The inert gas is discharged to the outside of the vacuum chamber 11 through the second gas discharge port 25.

The invention relates to a soil salinity regulating rod. The regulating rod comprises a first PVC tube with a cylindrical upper portion, and a second PVC tube with a pointy lower portion; aqueous salt absorption units and adsorption slow-release units are sequentially or alternately laid outside-in along the tube walls inside both the first PVC tube and the second PVC tube; the aqueous salt absorption units are layered structures consisting of vermiculite and sepiolite fabric based on a volume ratio of 1:1 to 4; and the adsorption slow-release units are layered or cylindrical structures consisting of saturated zeolite and mushroom residue based on a volume ratio of 5 to 8:2 to 5. The regulating rod is able to absorb and fix the aqueous salt in soil removed from some other place; and improve the vent ability of clayed soil. Compared with the method of the prior art, the rise of salinity in soil removed from some other place is controlled, and the vent ability of clayed soil is maintained, thus the salt-leaching effect is more reasonable.

A new type of heat exchange tube, the heat exchange tube includes: flow channel (1), tube wall (2), tube wall (3), tube wall (4); the cross-sectional shape of the tube is composed of three equal circles with a radius of 25mm Formed by two circumcisions; the heat exchange tubes are composed of two different arrangements: regular triangle arrangement and regular hexagonal arrangement. The unique shape of the heat exchange pipe of the invention can increase the intensity of turbulent flow, strengthen the heat exchange effect, and improve the heat exchange performance. Compared with ordinary round pipes, the heat exchange coefficient is increased by nearly 50%. At the same time, the structure is relatively simple, it is not easy to scale, and it is more convenient to clean after scaling.