36results about How to "Guaranteed heat transfer area" patented technology

The invention relates to an anti-scaling multiple shell pass assembled heat exchanger. The anti-scaling multiple shell pas assembled heat exchanger comprises a base, a bracket and a plurality of heat exchange units, wherein the base is fixed on the ground, the bracket is mounted at the upper end of the base, the plurality of the heat exchange units are mounted on the bracket, each of the heat exchange units is an independent single tube pass and single shell pass shell-and-tube heat exchanger and the heat exchange units are connected in pairs; each of the heat exchange units comprises a housing, tube boxes, tube plates, a tube bundle, a spiral baffle plate, a tube pass inlet, a shell pass inlet, a tube pass outlet and a shell pass outlet; the tube boxes are arranged at two ends of the housing, the tube bundle and the spiral baffle plate are arranged in the housing, the tube bundle is composed of a plurality of heat transfer tubes, the tube plates are welded at two ends of the tube bundle, and the spiral baffle plate is continuously welded by fan-shaped surface plates to form a spiral surface structure and is mounted on the tube bundle. By lengthening the lengths of the tube passes of the heat exchangers, the sections of the tube passes are reduced and the fluid flow rate of the tube passes is improved, so that the scaling probability of the tube passes is greatly reduced.

The invention provides a solar heat collector. The solar heat collector comprises two tube plate structures, wherein a given angle is formed between the two tube plate structures, the direction of the angle is opposite to the bending direction of an arc linear structure of a reflector, a focal point of the reflector is disposed between the angles formed by the tube plate structures, inner fins are arranged inside a heat collection pipe, the inner fins are connected with a rectangular opposite angle, the interior of the heat collection pipe is divided by the inner fins into a plurality of small passages, communication holes are formed in the inner fins, and the spacing among the communication holes of different heat collection pipes is gradually reduced along the extension direction from the junction of the two tube plate structures to lowest positions on two sides. By adopting the solar heat collector, the basically identical pressure can be kept inside different heat collection pipes, so that the overall service life of the heat collection pipe is prolonged, the heat exchanging area of the inner fins of the heat collection pipes can be guaranteed, and the heat conduction can be improved.

The invention provides a solar thermal collector which comprises two tube plate structures, wherein a certain included angle is formed between the two tube plate structures; the direction of the included angle is arranged opposite to the bending direction of an arch line structure of a reflector; the focus of the reflector is arranged in the included angle formed between the two tube plate structures; inner fins are arranged in each collector tube, are connected with corresponding diagonals of a rectangle and divide the interior of the corresponding collector tube into multiple small channels; communicating holes are formed in each inner fin; and the areas of the communicating holes of different collector tubes become larger and larger in the direction that a connecting point of the two tube plate structures extends towards the lowest positions on the two sides. The solar thermal collector can ensure the interiors of different collector tubes to keep basically same pressure so as to prolong the overall service life of the collector tubes, can also ensure the heat exchange areas of the inner fins of the collector tubes and strengthens heat transfer.

The invention relates to a plate-connected plate heat exchanger. The plate-connected plate heat exchangercomprises end pressing plates and heat exchange plate bundles, and the heat exchange plate bundlesare disposed between the end pressing plates.The plate-connected plate heat exchanger further comprises communication plate bundles. The heat exchange plate bundles are arranged at intervals between the end pressing plates. The plurality of sets of heat exchange plate bundles are connected to each other in a series, parallel or parallel serial manner by the communication plate bundles, and theheat exchange plate bundles and the communication plate bundles are clamped and fixed by the end pressing plates.According to the plate-connected plate heat exchanger, the problem that the large heatexchange plate is easy to be deformed and water leakage occurs can be overcome, the maintenance workload and cost reduction are facilitated, the service life of the heat exchanger is prolonged, heat exchange efficiency is high, and combination is flexible. A matching custom function is realized according to the requirements, installation environment and other needs, the structure is compact, the space is small, and the transportation is more convenient.

The invention provides a solar heat collector which comprises two tube plate structures. A certain included angle is formed between the two tube plate structures. The direction of the included angle is opposite to the bending direction of an arc structure of a reflector. The focal point of the reflector is located within the included angle formed by the tube plate structures. Inner fins are arranged in heat collecting tubes and connected with opposite corners of a rectangle. The interiors of the heat collecting tubes are divided into a plurality of small channels through the inner fins. Communicating holes are formed in the inner fins. The outer surfaces of the heat colleting tubes and the outer surfaces of heat collecting plates are coated with anti-corrosion layers. The surface of the heat collector is coated with a corrosion-resisting material, so that the corrosion resistance of the heat collecting tubes is increased, and the service life is prolonged.

The invention discloses a stainless steel corrugated pipe ground heat source heat exchange system and a setting method thereof. The system comprises an overground heat exchange device and an underground heat exchange device, wherein the underground heat exchange device comprises a ground source hole arranged under a ground foundation and a heat exchange piece arranged in the ground source hole; the heat exchange part comprises a stable filling part and at least one heat exchange system unit, each heat exchange system unit comprises a stainless steel corrugated pipe section, a polyolefin material pipe section and a stainless steel bent pipe section; the stainless steel corrugated pipe section and the polyolefin material pipe section are arranged in parallel in the vertical direction of theground source hole; one end of the stainless steel bent pipe section is connected to the lower end of the stainless steel corrugated pipe section in a butt joint mode, and the other end is connected to the lower end of the polyolefin material tube section in a butt joint mode, and communicates with the stainless steel bent pipe section and the polyolefin material pipe section; and the stable filling piece is filled in the ground source hole, so that the sealing stability of the heat exchange system unit is achieved. According to the stainless steel corrugated pipe ground heat source heat exchange system, the heat exchange area is greatly increased, and heat exchange amount is greatly improved.

The invention provides a solar thermal collector. The solar thermal collector comprises two tube plate structures, wherein a certain included angle is formed between the two tube plate structures; the direction of the included angle is opposite to the bending direction of an arc structure of a reflecting mirror; the focus of the reflecting mirror is in the included angle formed by the tube plate structures; inner fins are arranged inside collector tubes, are connected with opposite angles of rectangles and divide the interiors of the collector tubes into a plurality of small channels; communication pores are formed in the inner fins; the flows of fluids in different collector tubes are larger and larger in the extension directions from the collection point of the two tube plate structures to the lowest positions at the two sides. The solar thermal collector has the advantages that the uniform mixedness of fluids is maintained, thus avoiding loss of heat during fluid mixing; the temperatures of the collector tubes are ensured to basically keep the same, thus prolonging the overall service lives of the collector tubes.

The invention discloses a finned tube heating surface tube structure and a coal economizer. The finned tube heating surface tube structure comprises a heating tube, fins and anti-abrasion plates, wherein the fins and the anti-abrasion plates are connected with the heating tube; a plurality of fins are arranged in parallel in the radial direction of the heating tube; the anti-abrasion plates penetrate through the fins and are arranged in the axial direction of the heating tube; and a plurality of anti-abrasion plates are arranged along the circumference of the heating tube and distributed in a radial shape. The anti-abrasion plates are arranged on the portion, right facing the windward side, of the heating tube, so that the problem that leakage is caused due to the fact that a finned tube on the heating surface of an existing low-temperature coal economizer is not resistant to abrasion is thoroughly solved; the anti-abrasion plates and the fins are combined on the heating tube, so that the effects of preventing leakage of the heating tube and guaranteeing the heat transfer area of the heating tube are achieved; and the anti-abrasion plates are directly welded to the heating tube, and smoke heat absorbed by the anti-abrasion plates is directly transferred to the heating surface tube, so that the area of the heating tube is increased, the temperature of media in the tube is increased, the anti-abrasion effect is achieved, the heat utilization rate is increased, and the finned tube heating surface tube structure has high use value and popularization value.

The invention discloses a regenerator and a cold accumulation type low-temperature refrigerator adopting the regenerator, and belongs to the technical field of low-temperature refrigerators. The silk screens of the two different structures are composed of laminated substrate silk screens with uniform void ratios and laminated interval silk screens with different void ratios in the radial direction. The regenerator has the variable porosity in the radial direction, the flow resistance of working medium gas in the regenerator can be adjusted, the refrigerating capacity loss of the refrigerator caused by uneven radial temperature distribution is reduced, and the refrigerating efficiency of the refrigerator is improved. Meanwhile, due to the fact that the material of the laminated interval silk screen is the same as that of the laminated substrate silk screen serving as the main cold storage material, the heat exchange area and the heat exchange efficiency can be guaranteed, the problems that the heat exchange efficiency is reduced and the refrigeration performance is degraded due to the insertion part can be solved, and the performance of the refrigerator is further improved.

The invention is a type of refrigerating absorber and its manufacturing method. It comprises inner and outer two round tubes suiting with each other. There is fixed with up and down cover boards, entrance and exit of carrier at each end of the outer round tube while passage of the carrier and passage of cryogen in the inner round tube. There is fixed pipe for cryogen in or out on the up cover board and up end cap while mouth for absorbent to be loaded. The absorbent is filled between the passage of cryogen and the passage of carrier. The manufacturing process is welding elements adopting the method of argon-arc welding with stainless steel. The invention makes advantages of jacket-style heat exchanger and heat exchanger with arranging pipes so it not only has high efficiency of diathermancy and mass transfer, fine pressure endure, but also has compact structure because of which it can reduce volume of the absorber to a large degree and increase charge of the absorbent.

The invention provides a solar thermal collector which comprises two tube plate structures, wherein a certain included angle is formed between the two tube plate structures; the direction of the included angle is arranged opposite to the bending direction of an arch line structure of a reflector; the focus of the reflector is arranged in the included angle formed between the two tube plate structures; inner fins are arranged in each collector tube, are connected with corresponding diagonals of a rectangle and divide the interior of the corresponding collector tube into multiple small channels; communicating holes are formed in each inner fin; and the areas of the communicating holes of different collector tubes become larger and larger in the direction that a connecting point of the two tube plate structures extends towards the lowest positions on the two sides. The solar thermal collector can ensure the interiors of different collector tubes to keep basically same pressure so as to prolong the overall service life of the collector tubes, can also ensure the heat exchange areas of the inner fins of the collector tubes and strengthens heat transfer.

The invention provides a solar thermal collector. The solar thermal collector comprises two tube plate structures, wherein a certain included angle is formed between the two tube plate structures; the direction of the included angle is opposite to the bending direction of an arc structure of a reflecting mirror; the focus of the reflecting mirror is in the included angle formed by the tube plate structures; inner fins are arranged inside collector tubes, are connected with opposite angles of rectangles and divide the interiors of the collector tubes into a plurality of small channels; communication pores are formed in the inner fins; the inner cross section areas of the collector tubes are larger and larger in the extension directions from the collection point of the two tube plate structures to the lowest positions at the two sides. The solar thermal collector has the advantages that the uniform mixedness of fluids is maintained, thus avoiding loss of heat during fluid mixing; the temperatures of the collector tubes are ensured to basically keep the same, thus prolonging the overall service lives of the collector tubes.

The invention provides a solar thermal collector which comprises two tube plate structures, wherein a certain included angle is formed between the two tube plate structures; the direction of the included angle is opposite to a bending direction of an arch-shaped structure of a reflecting mirror; the focus of the reflecting mirror is positioned between the included angle formed by the tube plate structures; thermal collection tubes are internally provided inner fins; the inner fins are connected with rectangular inner corners; the thermal collection tubes are internally divided into a plurality of small channels by the inner fins; communication holes are formed in the inner fins; the thermal collection tubes and the thermal collection plates are made of a copper aluminum alloy. As a novel copper aluminum alloy is researched and developed and applied to the thermal collection tubes, the function of thermal collection can be improved, and meanwhile the high-temperature resistance of the thermal collector can be greatly improved.

The invention discloses a high-efficiency waste heat recovery system for steelmaking and continuous casting. A heat recovery component is installed on one side of the crystallizer base body, and several exhaust holes are equidistantly opened on the top of the crystallizer base body, and the inner side of the exhaust hole is embedded and installed. There is an exhaust fan, the bottom of the first recovery tank and the second recovery tank are welded with a deceleration tube, one end of the deceleration tube is installed with a heat conduction plate, the bottom of the second recovery tank is installed with the first water inlet pipe, and the top of the second recovery tank is installed with the first The outlet pipe accelerates the discharge of the hot steam inside the crystallizer through the exhaust fan, and discharges the hot steam into the recovery tank, and slows down its flow speed through the deceleration tube in the recovery tank, thus ensuring the heat dissipation time of the hot steam in the tank. And through the heat conduction plate to increase the heat conduction area, through two recovery tanks and continuously circulating cold water, the effect of recovering the heat energy contained in the hot steam is ensured, thereby ensuring the utilization rate of heat energy and reducing the waste of resources.

The phase change heat storing and supplying apparatus includes external energy source heater, water circulating pump, phase change heat storing device, valve A, valve B, valve C, heat sink, and shower connected together. By means of the direct phase change heat storing and releasing mode and stereo double involute heat accumulator, the present invention has homogeneous distribution of heat exchange pipe inside the heat accumulator, raised heat absorbing and releasing efficiency of the heat accumulating agent, reduce water flow pipe resistance and heat transfer temperature difference, increased heat accumulating capacity per unit volume, reduced apparatus size, full utilization of solar energy, waste heat and low price electric power, and stable hot water supply.

The invention relates to a direct type soil source heat pump system, which belongs to the technical field of refrigeration and heat pump. The system is composed of a compressor, a gas-liquid separator, an oil separator, a four-way change-over valve, a cooling agent / water heat exchanger, a bi-directional different working medium heat filling expansion valve, a device for drying and filtering, a level glass, a liquid separating device, an air collecting pipe, parallel branch of an outer fin copper pipe buried heat exchanger, an one-way valve, a solenoid-controlled valve and the like. The bi-directional different working medium heat filling expansion valve is used for throttle, liquid separating is accomplished to liquid cooling agent after gas-liquid separation when heat-production is in progress, and the buried heat exchanger employs compact outer ribbed structure and can operate heat-production and refrigeration. The direct type soil source heat pump system has the advantages of reliability, high efficient and environment protection.