30results about How to "Extend the heat transfer path" patented technology

The invention relates to a multistage preheating dual-mode low-NOx self-preheating burner, belongs to the technical field of industrial combustors, and is mainly used for industrial furnace kilns in the industries of steel, color, machinery, aviation, forging, ceramics and the like. According to the burner, a burner shell is installed at one end of a flue gas flow guiding device, a tiling is installed at the other end of the flue gas flow guiding device, a burner core is mounted on the tiling, an air flue gas deflector is mounted in the burner shell, the air flue gas deflector is matched withthe flue gas flow guiding device, one end of a heat exchanger is mounted on the air flue gas deflector, the other end of the heat exchanger is connected with the tiling, one end of an air guide cylinder is installed on the burner shell, the other end of the air guide cylinder is located in the heat exchanger, one end of a burner end cover and one end of an air cylinder are installed on the burnershell, a smoke exhaust pipe is installed in the air cylinder, and the smoke exhaust pipe is connected with the air flue gas deflector.

The invention discloses a biomass steam generator. The biomass steam generator comprises a combustion chamber with a furnace cavity, a steam chamber with a first sealed cavity and a heat exchanger; atotal flue gas outlet is formed in the top of the combustion chamber, a feed inlet and an air supplement inlet are formed in the side wall of the combustion chamber; a first flue gas inlet is formed in the bottom of the steam chamber, the steam chamber is located above the combustion chamber, and the first flue gas inlet and the total flue gas outlet communicate in a sealed mode; a water jacket group is arranged in the first sealed cavity; a first flue gas outlet is formed in the side wall of the steam chamber, the first flue gas outlet communicates with a second flue gas inlet of the heat exchanger, and an induced draft fan is arranged at the second flue gas outlet of the heat exchanger; a water outlet of the heat exchanger sequentially communicates with the water jacket group through a water inlet pipe, a water pump and a water outlet pipe, and a steam inlet pipe of an air manifold sequential penetrates through through holes in the top of the steam chamber in a sealed mode and extends into the water jacket group. The biomass steam generator is simple and compact in structure, small in space occupation, full in combustion of biomass fuels and high in heat exchange efficiency.

The invention provides a vertical type multisource steam waste heat recovery energy-saving device, and belongs to the technical field of energy saving and environmental protection. The vertical type multisource steam waste heat recovery energy-saving device comprises an upper liquid storing chamber, a heat exchange chamber, a lower liquid storing chamber, row tubes, a first separating plate, a second separating plate and the like. Inlets for exhaust steam and waste condensate water with different pressures and temperatures are arranged according to the heat exchange gradient, and the problemsabout integrated mixing and recovering of the steam and waste condensate water with different pressures are solved; the multiple layers of separating plates are alternatively arranged for dividing theheat exchange chamber into a plurality of communicated cavities, the heat exchange path is prolonged, and the heat exchange efficiency is further improved; separation of waste gas with large densityis achieved, the handling quantity of the waste gas is effectively reduced, and the energy saving and environmental protection effect is obviously improved; and as an auxiliary adjusting device of anMVR system, the MVR system runs stably and efficiently, and maximized utilization of the waste steam is achieved. The advantages of being high in integration level, simple in structure and low in equipment investment are achieved, the vertical type multisource steam waste heat recovery energy-saving device can be widely applied to waste heat recovery and using of foods, feed, chemical engineering,pharmacy, sewage treatment and other industries and fields.

The invention discloses a tube-in-tube condenser for an air source heat pump device. The tube-in-tube condenser comprises a plurality of condenser units. The condenser units are serially connected with one another, water inlets, water outlets, refrigerant inlets and refrigerant outlets are formed in the condenser units, tube pass channels and shell pass channels which are separated from one another are formed in each condenser unit, and each tube pass channel comprises at least two parallel and twined water pipes; the shell pass channels are communicated with the refrigerant inlets and the refrigerant outlets. The tube-in-tube condenser has the advantages that the tube-in-tube condenser comprises the multiple condenser units, the condenser units are distributed by means of arraying, accordingly, the sufficient condenser units can be mounted in limited spaces, heat exchange paths with sufficient lengths can be obtained, and the heat exchange efficiency can be improved; the condenser units are of parallel tube-in-tube structures, so that the lengths of the tube pass channels can be extended to the greatest extent in limited spaces of tubular shells, and the long heat exchange distances can be obtained; the flow of water can be improved.

The invention provides a refrigerator. The refrigerator comprises a storage chamber and an evaporator and further comprises a liquid storage device, an air return duct and an air supply duct, wherein the liquid storage device contains liquid-state fluid with the freezing point lower than a preset threshold value, and the evaporator is immersed in the liquid-state fluid; airflow from the storage chamber is guided into the liquid-state fluid through the air return duct and subjected to heat exchange with the liquid-state fluid so as to be cooled; and airflow penetrates through the liquid-state fluid to escape to the space above the liquid level of the liquid-state fluid is returned to the storage chamber through the air supply duct. According to the refrigerator, by arranging the evaporator in the liquid-state fluid with the low freezing point, the problem of frosting of the evaporator of the refrigerator can be solved, the evaporator can operate in a frost-free mode continuously, the performance of a refrigerating system is improved, and energy consumption is reduced. Meanwhile, the situation that temperature fluctuation of the storage chamber of the refrigerator is large due to defrosting of the evaporator can be avoided.

The invention discloses a straight groove flow guide staggered dotting pipe, and belongs to the technical field of heat dissipation pipes. The staggered dotting pipe comprises a pipe body, wherein first straight grooves and second straight grooves are formed in the upper side face of the pipe body, third straight grooves and fourth straight grooves are formed in the lower side face of the pipe body, the multiple first straight grooves, the multiple second straight groove rows, the multiple third straight groove rows and the multiple fourth straight groove rows form the first straight groove rows, the second straight groove rows, the third straight groove rows and the fourth straight groove rows correspondingly, the first straight grooves and the third straight grooves are arranged in a staggered and crossed mode, the outer side walls of the bottoms of the first straight grooves abut against the outer side walls of the bottoms of the third straight grooves, the second straight grooves and the fourth straight grooves are arranged in a staggered and crossed mode, and the outer side walls of the bottoms of the second straight grooves abut against the outer side walls of the bottoms of the fourth straight grooves. The grooves in different directions are formed in the upper side face and the lower side face, so that a plurality of S-shaped circulation paths are formed in the pipe body, the heat dissipation effect of the pipe body is improved, and the turbulent flow effect is achieved.

The invention provides a control method for an air conditioner indoor unit and the air conditioner indoor unit. The air conditioner indoor unit includes an indoor heat exchanger and a fresh air device leading the outdoor air to the upstream of the indoor heat exchanger. The control method includes: obtaining the air humidity of the outdoor environment; judging whether the air humidity is greater than or equal to a preset humidity threshold; and turning on the fresh air device when the air humidity is greater than or equal to the preset humidity threshold and the indoor heat exchanger is in a cooling state. When the humidity of the outdoor air exceeds the threshold, the present invention only turns on the fresh air device when the indoor heat exchanger is in a cooling state, and can dehumidify the outdoor air through the indoor heat exchanger, avoiding user discomfort caused by high indoor environment humidity.

The invention discloses a shell-and-tube condenser for air source heat pump units. The shell-and-tube condenser is composed of multiple condenser units connected in series. A tube pass channel and a shell pass channel isolated from each other are formed in each condenser unit, wherein the tube pass channel is communicated with a water inlet and a water outlet, and the shell pass channel is communicated with a refrigerant inlet and a refrigerant outlet. With the order of water flow as a reference, among the multiple condenser units connected in series, the water outlet of the first condenser unit is communicated with the water inlets of the subsequent condenser units through a pipeline, low-temperature water flows into the water inlet of the first condenser unit, and is heated gradually into hot water, and the hot water flows out of the water outlet of the last condenser unit. The condenser is composed of multiple condenser units which are distributed in whole columns, so that enough condenser units can be installed in a limited space, a long enough heat transfer path is obtained, and the efficiency of heat exchange is improved.

The invention provides a horizontal multisource steam waste heat recovery energy-saving device, and belongs to the technical field of energy conservation and environmental friendliness. The horizontalmultisource steam waste heat recovery energy-saving device comprises a liquid inlet chamber, a heat exchange chamber, a liquid outlet chamber, row tubes, a steam isolation plate, a liquid isolation plate and the like. Inlets for waste steam and waste condensate water at different pressures and temperatures are formed according to the heat exchange gradient, so that the problem of integrated mixing and recycling of steam and the waste condensate water under different pressures is solved; the multilayer steam isolation plate is matched with the staggered separation of the row tubes, and the liquid isolation plate is used for adjusting the flow direction of liquid, so that the heat exchange efficiency is further improved; effective separation of the waste steam is realized, the treatment capacity of the waste steam is reduced, and the obvious effects of environmental friendliness and energy conservation are achieved; and the horizontal multisource steam waste heat recovery energy-savingdevice is used as an auxiliary adjusting device of an MVR (mechanical vapor recompression) system, so that the MVR system is stably and efficiently operated, the maximum utilization of the waste steamis realized, and the energy-saving effect is obvious. The horizontal multisource steam waste heat recovery energy-saving device has the advantages of high integration level, the simple structure andlow equipment investment and can be widely applied to waste heat recovery and utilization in the industry and field of food, feed, chemical engineering, pharmacy, sewage treatment and the like.

The invention provides a cooling tower with a water mist processing device. The cooling tower can work in different ways and can improve efficiency of water mist. Through first and second mist removing devices which are arranged in a stagger mode, the limited space in the tower can be rationally and fully used. Cone and semicircular cone shapes are arranged in a matched mode. Compared with a traditional s-shaped dewatering plate or a wave-shaped dewatering device, the hear exchange area is enlarged, heat exchanging is improved, and the water mist removing effect is improved. The second mist removing devices are located at the center of the tower body. The second water mist removing devices are adjacent in an up and down mode and communicate with each other by a circulation main pipe. Cooling capacity of fluid can be improved by parallel connection. Through lateral plate mist removing devices on two sides, full heat exchanging effect is achieved to air around the tower body wall. A gridshape is arranged in a matched mode and corresponds to a draught fan outside, and therefore free adjusting and shifting between mist removing and tower body heat exchanging modes can be achieved. Through cooling liquid grooves, circulation water grooves and upper and lower water pipes, a cooling source can be adopted alternatively, water resource is saved, real-time adjusting is conducted based on the temperature requirements, and intelligent temperature control of mist removing is achieved.

The invention discloses a waste water waste heat recovery device and a shower device comprising the same, belongs to the technical field of heat exchangers, and aims to achieve the energy saving effect. The waste water waste heat recovery device comprises a waste heat waste water collecting container (2), and an outlet of the container communicates with a hot water inlet (411) of a heat exchanger.The waste water waste heat recovery device is characterized in that the heat exchanger is a sleeve backflow heat exchanger, a sleeve is in a disc shape formed through layer-by-layer winding, and thewinding sleeve backflow heat exchanger is formed. An inner pipe of the sleeve is a hot water pipe of the heat exchanger. The high temperature end of the winding sleeve backflow heat exchanger is in the center of the winding sleeve backflow heat exchanger. The sleeve is a hose. The pipe wall of the inner pipe of the sleeve is thinner than that of an outer pipe of the sleeve. A hot water outlet of the heat exchanger is higher than the disc-shaped sleeve (4) of the winding sleeve backflow heat exchanger. The shower device comprises a water feeding device, a water discharging device and a water heater and is characterized in that the shower device further comprises the a waste water waste heat recovery device, discharged water enters the waste heat waste water collecting container, and fed water passes through a cold water pipeline of the winding sleeve backflow heat exchanger and then enters the water heater.

The invention provides a horizontal multisource steam waste heat recovery energy-saving device, and belongs to the technical field of energy conservation and environmental friendliness. The horizontalmultisource steam waste heat recovery energy-saving device comprises a liquid inlet chamber, a heat exchange chamber, a liquid outlet chamber, row tubes, a steam isolation plate, a liquid isolation plate and the like. Inlets for waste steam and waste condensate water at different pressures and temperatures are formed according to the heat exchange gradient, so that the problem of integrated mixing and recycling of steam and the waste condensate water under different pressures is solved; the multilayer steam isolation plate is matched with the staggered separation of the row tubes, and the liquid isolation plate is used for adjusting the flow direction of liquid, so that the heat exchange efficiency is further improved; effective separation of the waste steam is realized, the treatment capacity of the waste steam is reduced, and the obvious effects of environmental friendliness and energy conservation are achieved; and the horizontal multisource steam waste heat recovery energy-savingdevice is used as an auxiliary adjusting device of an MVR (mechanical vapor recompression) system, so that the MVR system is stably and efficiently operated, the maximum utilization of the waste steamis realized, and the energy-saving effect is obvious. The horizontal multisource steam waste heat recovery energy-saving device has the advantages of high integration level, the simple structure andlow equipment investment and can be widely applied to waste heat recovery and utilization in the industry and field of food, feed, chemical engineering, pharmacy, sewage treatment and the like.

The invention discloses a tunnel furnace with an energy recycling system, which comprises an inlet section, a furnace pipe body, an energy recovery section and an outlet section which are sequentially connected, and the energy recovery section comprises a cooling channel body and an energy recovery area arranged outside the cooling channel body. The inlet section comprises an inlet channel body and an energy utilization area arranged outside the inlet channel body, an energy conveying body used for conveying heat-conducting media is arranged between the energy recycling area and the energy utilization area, and the energy recycling area is provided with a medium inlet used for inputting the heat-conducting media. The energy utilization area is provided with a medium outlet used for discharging the heat-conducting medium, and the medium inlet or the medium outlet is provided with a power piece used for driving the heat-conducting medium to flow. According to the tunnel furnace with the energy recycling system, energy can be recycled, and the better energy-saving effect is achieved.

The invention discloses a heat pump heat exchanger, which comprises a secondary heat exchange cabin, a buffer cabin and a main heat exchange cabin which are connected in sequence; Heat pipe bundle, one end of the main heat exchange tube bundle communicates with the buffer compartment through the first main heat exchange tube plate, and the other end of the main heat exchange tube bundle communicates with the refrigerant exhaust pipe through the second main heat exchange tube plate; The cabin includes the shell of the auxiliary heat exchange cabin, and the auxiliary heat exchange cabin is provided with a capillary tube bundle, one end of the capillary tube bundle is connected with the refrigerant supply pipe through a capillary liquid separator, and the other end of the capillary tube bundle is connected with the buffer cabin through a capillary tube plate; The cabin includes a buffer cabin shell; the main heat exchange cabin is provided with a main water inlet pipe and a main water outlet pipe, and the auxiliary heat exchange chamber is provided with a water suction pipe connected to the main heat exchange chamber and an auxiliary water outlet pipe connected to the main water outlet pipe. The invention also discloses a heat pump using the heat exchanger. The pressure of the refrigerant in the main heat exchange tube of the present invention is balanced and the heat exchange efficiency is high.

The invention provides an auxiliary heat conducting device of a ferrous metallurgy continuous casting crystallizer. The auxiliary heat conducting device comprises a heat conducting fin set, a copper and aluminum combined inner plate and a pipe groove; the heat conducting fin set is constituted by a plurality of fin plates, and the square crystallizer is exactly wrapped with the whole heat conducting fin set; and an inner pipe and an outer pipe which are parallel to each other vertically penetrate through the heat conducting fin set, and the lower ends of the inner pipe and the lower pipe are connected with each other in series. According to the auxiliary heat conducting device of the ferrous metallurgy continuous casting crystallizer, internal screw joint openings are formed in right-anglefixing plates, the right-angle fixing plates are downwards arranged at the left end and the right end of the inner side of the heat conducting fin set correspondingly, the tops of the right-angle fixing plates are fixed to the heat conducting fin set through fixing bolts, the internal screw joint openings are formed in the vertical side walls of the right-angle fixing plates, thus the heat conducting fin set is conveniently hung on the outer wall of the continuous casting crystallizer through bolts, and the heat conducting fin set and the continuous casting crystallizer can be combined more tightly through the right-angle fixing plates.

The invention relates to a shock-absorbing and heat-dissipating power cabinet for electric power engineering, which comprises a shell, and components are arranged in the shell, and a cavity is set in the side wall of the shell, and a water-cooling and cooling device is connected in the cavity. The cooling device includes a water pump, a water tank and a water inlet pipe. The water pump is connected to the water tank. The width of the plate gradually decreases from top to bottom. An overflow plate is vertically arranged on the side of each baffle away from the inner wall of the shell. The height of the top of each overflow plate is not lower than the height of the adjacent previous baffle. , The overflow plate and the side wall of the housing form a liquid overflow space. The end of the water inlet pipe away from the water pump passes through the housing and communicates with the overflow space on the top floor. The bottom end of the cavity communicates with the upper end of the water tank through the outlet pipe. The upper end of the water tank is lower than the bottom end of the cavity. The invention has the effect of conveniently cooling the power cabinet.

The invention provides a wall corner vertical type forced-convection heat transfer device which comprises a shell, a radiating pipe, a vertical baffle, a baffle plate, a draught fan, a filter and a fixed plate. The shell is divided into two parts, and the upper part of the shell is divided into an inner shell and an outer shell. The vertical baffle and the radiating pipe are arranged in the innershell, wherein a water inlet opening is formed at one end of the lower portion of the radiating pipe, and a backwater opening is formed at the other end of the lower portion of the radiating pipe. Thedraught fan and the filter are arranged in the lower part of the shell, wherein the draught fan and the filter are fixed by a clamping seat of the draught fan. An air outlet of the draught fan is faced to a lateral radiating pipe of one side of the water inlet opening, and the air outlet of the draught fan is connected with the bottom end of the rear heat exchange air duct in a direct communicating mode. The lower part of a shell panel is provided with an air inlet faced to the filter. The air purified and filtered by the filter is sucked into a heat exchange channel outside the radiating pipe through the draught fan, the air flow flows around the radiating pipe and the baffle plate located in the heat exchange channel, and the air flow and hot water in the radiating pipe carry out the heat exchange, to meet the requirement of the temperature of out wind. According to the wall corner vertical type forced-convection heat transfer device, indoor temperature rise and air purification andcirculation are realized. The device is simple in structure, convenient to install and maintain, environmentally friendly and capable of saving energy.

The invention discloses a shell-and-tube type heat exchanger, which comprises an auxiliary heat-exchanging cabin, a buffering cabin and a main heat-exchanging cabin, wherein the auxiliary heat-exchanging cabin, the buffering cabin and the main heat-exchanging cabin are sequentially connected; the main heat-exchanging cabin comprises a shell tube and a main heat-exchanging tube bundle, wherein the main heat-exchanging tube bundle is arranged in the shell tube, one end of the main heat-exchanging tube bundle is communicated with the buffering cabin, the other end of the main heat-exchanging tube bundle is communicated with a refrigerant discharging tube, the diameter of the shell tube is 200mm to 400mm, the diameter of a main heat-exchanging tube is 7mm to 11mm, the length of the shell tube and the main heat-exchanging tube is not shorter than 4000mm, and the equivalent heat-exchanging area of the shell tube is two to three times that of the main heat-exchanging tube bundle; a capillary bundle is arranged in the auxiliary heat-exchanging cabin, and the equivalent sectional area of the capillary bundle is greater than that of the main heat-exchanging tube bundle; the buffering cabin comprises a buffering cabin shell, and a buffering inner cavity is enclosed by the buffering cabin shell; the main heat-exchanging cabin is provided with a main water-inlet tube and a main water-outlet tube, and the auxiliary heat-exchanging cabin is provided with a water absorbing tube and an auxiliary water-outlet tube. The invention also discloses a heat exchanger set and a heat pump unit. The shell-and-tube type heat exchanger and the heat exchanger set as well as the heat pump unit have high heat-transfer coefficients.

The invention relates to a vortex parallel flow countercurrent evaporator for an automotive air conditioner, which comprises a plurality of vortex type flat tubes, wherein the vortex type flat tubes are arranged in parallel, extended to form a vortex shape and separated by fins; refrigerant runners are formed in cavities of the vortex type flat tubes; the adjacent vortex layers of individual vortex type flat tubes are in sealing connection by the fins on two sides to form secondary refrigerant runners exchanging heat with refrigerants; inlets and outlets of each refrigerant runner are communicated with one another respectively; the inlets and outlets of each secondary refrigerant runner are communicated with one another respectively; and the refrigerants in the refrigerant runners and secondary refrigerants in the secondary refrigerant runners flow reversely. The vortex parallel flow countercurrent evaporator for the automotive air conditioner has a simple structure, occupies a small area, is difficult to deform by stress, vibration, thermal expansion and the like under severe conditions to influence the sections of the runners, makes smooth the circulation of the refrigerant, remarkably increases the travel of the refrigerant, improves the refrigeration efficiency and greatly reduces machining difficulties.