112results about How to "Meet heat transfer needs" patented technology

The invention relates to a proton exchange membrane fuel cell metal bipolar plate, which consists of a cathode monopolar plate and an anode monopolar plate made of sheet metal, wherein a flow passage of the monopolar plates consists of a flow field flow passage, a distribution flow passage and an inlet-outlet passage, and the proton exchange membrane fuel cell metal bipolar plate is characterized in that the distribution flow passage is a point-like flow passage, the point-like flow passage consists of unconnected lug bosses raised towards the front side of the monopolar plates, the back sides of the lug bosses are provided with steel pits, the steel pit on the back side of the lug boss on the cathode monopolar plate is staggered with the steel pit on the back side of the lug boss on the anode monopolar plate, and the front part and the back part of the steel pits are overlapped relatively to form continuous water flow distribution flow passages which are connected in series. The proton exchange membrane fuel cell metal bipolar plate has the advantages of thin thickness for the manufactured bipolar plate, strict separation of fluid, good fluid distribution, light weight, simple processing and low processing cost; besides, the bipolar plate has high effective utilization area and good fluid resistance distribution evenness, and can satisfy the needs of different battery heat exchanges.

The invention discloses a cooling system and method of an airborne heating element based on air expansion refrigeration, and belongs to the field of airborne equipment cooling. The cooling system comprises a high heat-flow heating element spray cooling circulation subsystem, an air expansion refrigeration circulation subsystem and a regenerator (7), wherein the high heat-flow heating element spray cooling circulation subsystem comprises a buffer tank (8), a circulation pump (9), a filter (10), a flow regulating valve (11), a spray chamber (14) and a bypass valve (15); the air expansion refrigeration circulation subsystem comprises a primary heat exchanger (2), a secondary heat exchanger (4), a water separator (5), a turbine (6) and a fan (16). The system can achieve rapid cooling of high heat-flow heating element, and achieve the purpose of circulation cooling for multiple times through the regenerator; an intermediate regenerator structure makes full use of the characteristics of large working time intervals of the heating element and large phase change latent heat of phase change materials, greatly reduces the volume of system equipment, and meets the requirements of airborne equipment.

The invention discloses a cooling system and method of airborne heating elements based on evaporative refrigeration, and belongs to the field of cooling airborne equipment. The cooling system comprises a spray cooling cycle subsystem of high heat-flow heating elements, an evaporative refrigeration cycle subsystem, and a cold accumulator (5) for connecting the spray cooling cycle subsystem and the evaporative refrigeration cycle subsystem, wherein the spray cooling cycle subsystem of high heat-flow heating elements comprises a buffer tank (6), a circulating pump (7), a filter (8), a flow regulating valve (9), a spray cavity (12) and a bypass valve (13); the evaporative refrigeration cycle subsystem comprises a condenser (1), a heat regenerator (3), an expansion valve (4) and a compressor (14). Through adoption of the cooling system, the rapid heat dissipation of the high heat-flow heating elements can be realized, and the purpose of repeated circular heat dissipation is achieved through the cold accumulator; besides, the cold accumulator is arranged in the middle, the working time intervals of the heating elements and the characteristic of high latent heat of phase-change materials are fully utilized, so that the volume of the equipment of the system is greatly reduced, and the requirements of airborne equipment are satisfied.

The invention discloses a control method of an air conditioner, wherein the control method is applied to the air conditioner provided with two air outlet. The control method comprises the steps: the indoor environment temperature, the set temperature and the operation mode of the air conditioner are obtained; whether the operation mode is a first preset mode or not is judged; when the operation mode is the first preset mode, according to the indoor environment temperature and the set temperature, a first target state of the first air outlet, a second target state of the second air outlet and afirst rotating speed of an indoor fan are determined; and according to the first target state, a first air guiding plate is controlled to operate, according to the second target state, a second air guiding plate is controlled to operate, and according to the first rotating speed, the indoor fan is controlled to operate. The invention further discloses a control device of the air conditioner, theair conditioner and a readable storage medium. The air conditioner, the control method and device thereof, and the readable storage medium aim to ensure that the air conditioner provided with the twoair outlets can meet the heat exchange amount needed by the indoor space, and meanwhile ensure the operation stability of the air conditioner.

The invention relates to a loop gravity-assisted heat pipe heat transfer device which mainly comprises an evaporator, a condenser, a steam pipe and a liquid pipe, wherein the evaporator is pipe-shaped, the evaporator is sealed and is filled with a working medium, an inlet of the steam pipe slightly extends into the top of the evaporator, and an outlet of the liquid pipe passes through the top of the evaporator and extends to the bottom of the evaporator; and an outlet of the steam pipe is communicated with the upper part of the condenser, and an inlet of the liquid pipe is communicated with the lower part of the condenser. The loop gravity-assisted heat pipe heat transfer device disclosed by the invention has excellent heat transfer performance and application expandability, can avoid installation difficulty, meets heat transfer requirements of vacuum tube heat collectors with any sizes and has the advantages of reliable structure and manufacturing process and lower cost.

The invention relates to a compound type compact heat exchanger core which comprises end plates, gas heat exchange units and liquid heat exchange units. The gas heat exchange units and the liquid heatexchange units are alternately stacked between the end plates. Flow channel of the liquid heat exchange units are larger than heat exchange channels of the gas heat exchange unit. The compound type compact heat exchanger core has the following beneficial effects that through the arrangement mode that the gas heat exchange units and the liquid heat exchange units are alternately stacked, the flowarea of the channels on one side is increased, so that the blockage problem is avoided when particle impurities exist in a working medium, and the service life of a heat exchanger is prolonged; and meanwhile, the flow resistance of fluid can be reduced, and the heat exchange effect is enhanced. Each gas heat exchange unit can be formed by stacking multiple layers of micro-channel etched plates sothat when a working medium with poor heat transfer performance flows through the channels of the gas heat exchange units, the heat exchange demand of the working medium can be met, heat can be fully transferred; and the size of the core of the heat exchanger can be reduced under the condition of the same heat exchange power, and the heat exchange efficiency is improved.

The invention discloses an automobile heat pump system and a control method. The automobile heat pump system comprises a warm air core body and an automobile equipment refrigeration unit. The automobile equipment refrigeration unit comprises a first compressor, a first condenser, a first evaporator and an automobile equipment radiator set. A heat medium of the warm air core body exchanges heat with a refrigerant in the first condenser to be heated and then flows back to the warm air core body; cold end air of the warm air core body is used for heating air of a passenger compartment; a refrigerant exchanges heat and is cooled in the first condenser and then flows into the cold end of the first evaporator; a cold medium of the automobile equipment radiator set enters the hot end of the firstevaporator, exchanges heat with a refrigerant for cooling and then flows back to the automobile equipment radiator set to be used for heat dissipation of automobile equipment. A refrigerant exchangesheat in the first evaporator, is heated and then flows into an inlet of the first compressor. Motor waste heat, battery waste heat and external air heat are utilized to the maximum extent, and an automobile air conditioner does not need to switch heating through a refrigerant loop; the development cost and the automobile heating power consumption are reduced.

The invention discloses a corrugated fin heat exchange structure for a mine air cooler and a design method of the corrugated fin heat exchange structure. The corrugated fin heat exchange structure comprises multiple rows of heat exchange pipes and a corrugated fin. The corrugated fin is a sawtooth-shaped corrugated plate. The heat exchange pipes in the two rows of adjacent heat exchange pipes are staggered. The corrugated fin comprises a plurality of corrugated fin units. Each corrugated fin unit comprises two symmetric strip-shaped plates. A heat exchange pipe laying plate for allowing one row of heat exchange pipes to be laid is defined by three adjacent strip-shaped plates. Heat transfer enhancement structures are arranged on the outer sides of the heat exchange pipes. The design method comprises the following steps that first, the size parameters of the corrugated fin are determined; second, the distances between any two adjacent heat exchange pipes are determined; and third, the size parameters of the heat transfer enhancement structures are determined. The corrugated fin heat exchange structure is reasonable in design, simple and convenient to process and manufacture, and good in using effect. The heat exchange pipes are arranged on the corrugated fin, and the heat transfer enhancement structures are arranged on the outer sides of the heat exchange pipes, so that the heat exchange efficiency can be improved effectively, the size of the mine air cooler can be reduced, and installation and arrangement of high temperature borehole operation places are facilitated.

The invention belongs to the technical field of aerospace testing, provides a scramjet engine fuel gas analysis high-enthalpy sampling probe, and particularly provides a blow-down scramjet engine combustion device and a fuel gas sampling probe for capturing high-enthalpy fuel gas in engine combustor tests.

The invention discloses an air conditioner control method. The air conditioner control method comprises the following steps: flow of a refrigerant about to enter an indoor heat exchanger and / or an outdoor heat exchanger during operation of an air conditioner is acquired; the acquired flow of the refrigerant is compared with a preset flow level, and the flow level corresponding to the acquired flow of the refrigerant is acquired; the heat exchange area of the indoor heat exchanger and / or the outdoor heat exchanger is adjusted according to the flow level corresponding to the acquired flow of the refrigerant, so that the heat exchange area of the indoor heat exchanger and / or the outdoor heat exchanger is matched with the flow of the refrigerant. The invention further provides an air conditioner control device. With adoption of the air conditioner control method and device, not only are the requirements of the indoor heat exchanger for heat exchange met, but also sufficient use of the indoor heat exchanger is guaranteed, the heat exchange efficiency of the indoor heat exchanger is improved, and energy saving performance of the air conditioner is improved.

The invention provides a ring heat exchanger of a sterling heat engine. The ring heat exchanger comprises a ring heat exchanger main body and a plurality of connecting pipes which are arranged at two ends of the ring heat exchanger main body. The interior of the ring heat exchanger is provided with at least two heat exchange channels in a centrosymmetrical distribution manner, and the symmetrical center is the center of the central channel; two ends of each heat exchange channel are respectively provided with a connecting pipe; a heat exchange wall between the heat exchange channels is internally provided with a plurality of heat exchange holes; and heat exchange plates are distributed on the surface of the ring heat exchanger. The ring heat exchanger of the sterling heat engine provided by the invention has the advantages that a plurality of working chambers of each individual heat exchanger of the sterling heat engine are integrated into a whole, and the heat exchanging demands of the working chambers at each thermodynamic process are satisfied; the heat exchange area between the heat exchanger and a heat source is increased effectively, the heat exchange capability is strengthened, and the existing water cooling system can be completely replaced by a wind cooling system; the ring heat exchanger is especially used for a sterling invertible heat engine, the space is utilized fully, and the volume of the whole ring heat exchanger is smaller.

The invention relates to a proton exchange membrane fuel cell metal bipolar plate, which consists of a cathode monopolar plate and an anode monopolar plate made of sheet metal, wherein a flow passage of the monopolar plates consists of a flow field flow passage, a distribution flow passage and an inlet-outlet passage, and the proton exchange membrane fuel cell metal bipolar plate is characterizedin that the distribution flow passage is a point-like flow passage, the point-like flow passage consists of unconnected lug bosses raised towards the front side of the monopolar plates, the back sidesof the lug bosses are provided with steel pits, the steel pit on the back side of the lug boss on the cathode monopolar plate is staggered with the steel pit on the back side of the lug boss on the anode monopolar plate, and the front part and the back part of the steel pits are overlapped relatively to form continuous water flow distribution flow passages which are connected in series. The proton exchange membrane fuel cell metal bipolar plate has the advantages of thin thickness for the manufactured bipolar plate, strict separation of fluid, good fluid distribution, light weight, simple processing and low processing cost; besides, the bipolar plate has high effective utilization area and good fluid resistance distribution evenness, and can satisfy the needs of different battery heat exchanges.

The invention discloses a shell-and-tube heat exchanger suitable for three-fluid heat exchange. The shell-and-tube heat exchanger suitable for three-fluid heat exchange comprises a shell, a first sealing head, a second sealing head, a first fluid heat exchange assembly, a second fluid heat exchange assembly and a third fluid heat exchange assembly, wherein the shell is isolated through a vertically-arranged third tube plate to form a first inner cavity and a second inner cavity; the first sealing head is arranged at one end of the shell, and a first tube box is formed in the first sealing head; the second sealing head is arranged at the other end of the shell, and a second tube box is formed in the second sealing head; the first fluid heat exchange assembly is arranged in the first inner cavity, and comprises a third tube box, a first heat exchange tube communicating the third tube box with the first tube box, a fourth tube box, and a second heat exchange tube communicating the fourth tube box with the first tube box, and a first fluid flows to exchange heat in the first heat exchange tube and the second heat exchange tube; the second fluid heat exchange assembly comprises concentric tubes arranged in the shell and communicating with the second tube box and the second inner cavity respectively, and a second fluid flows to exchange heat in the concentric tubes; and in the third fluid heat exchange assembly, a third fluid flows to exchange heat in the first inner cavity of the shell. The shell-and-tube heat exchanger suitable for three-fluid heat exchange, which is disclosed by the invention, is reasonable in structural design; and the shell-pass fluid can exchange heat with the two tube-pass fluids simultaneously, thus a multi-fluid heat exchange need is met, and the heat exchange efficiency is high.

The invention discloses a novel heat exchanger core, and belongs to the technical field of machine design. The novel heat exchanger core comprises n first fluid heat exchange plates and m second fluid heat exchange plates. The n first fluid heat exchange plates and the m second fluid heat exchange plates are arranged alternately. The first fluid heat exchange plates carry first heat exchange fluid, and the second fluid heat exchange plates carry second heat exchange fluid. Etching channels are etched in the first fluid heat exchange plates and the second fluid heat exchange plates correspondingly. Each etching channel comprises a heat exchange channel and a guide channel. Each heat exchange channel comprises straight channel bodies and oval channel bodies which are arranged alternately, wherein the straight channel bodies communicate with the oval channel bodies, and the long axes of the oval channel bodies and the center axes, in the fluid flowing direction, of the straight channel bodies are located on the same straight line. The guide channels are connected with the heat exchange channels and extend to the edges of the plates. According to the heat exchanger core, a gradual-contracting and gradual-expanding structure is adopted so that the heat exchanger core can adapt to a using condition with low working medium cleanliness, and the requirement for the cleanliness of fluid working media is lowered.

The invention discloses a novel heat exchanger core and belongs to the technical field of mechanical design. The heat exchanger core includes two cover plates, an etching plate piece, a forming platepiece and partition plates. The forming plate piece and the partition plate form a structural unit. The structural unit and the etching plate piece are alternately overlaid between the two cover plates, the non-etched surface of the etching plate piece is in butt joint with the forming plate piece, the etched surface of the etching plate piece is in butt joint with the adjacent structural unit, the partition plates are arranged between the cover plates and the etching plate piece, and the partition plates are arranged between the cover plates and the forming plate piece. The cover plates, theetching plate piece, the forming plate piece and the partition plates are machined into a whole. The novel heat exchanger core integrates the characteristics of a microchannel heat exchanger and a plate heat exchanger and can meet the use conditions that the working medium cleanliness is not high, and the novel heat exchanger core is particularly suitable for natural gas cooling processes of an offshore work platform.

The invention belongs to the technical field of air conditioners, and particularly relates to a control method of a multi-unit air conditioning system. The invention aims to solve the problems that it is difficult for an existing control method to reliably ensure that the actual operation requirement of a water chilling unit after load shedding is matched with the operation state, and the energy efficiency ratio parameter of the water chilling unit is not ideal. In order to achieve the purpose, the control method of the multi-unit air conditioning system can judge the loading and unloading requirements of the current air conditioning system on the basis of the outlet water temperature, and can also increase and decrease the unit number of the multi-unit air conditioning system according to the outlet water temperature after loading and unloading, the unit average load or the starting temperature difference on the basis, so that the matching degree of the operation requirement and the operation capacity of the multi-unit air conditioning system is further improved, the energy efficiency ratio parameter of the multi-unit air conditioning system is optimized, and the multi-unit air conditioning system can efficiently operate while the basic heat exchange requirement is met.

The invention discloses an overcooling heat exchange system of refrigerants under the air conditioner heating circulation and an air conditioner. The overcooling heat exchange system comprises an overcooling heat exchanger provided with a first refrigerant pipe and a second refrigerant pipe, the first end of the first refrigerant pipe is connected with an indoor heat exchanger, the second end of the first refrigerant pipe is connected with an outdoor heat exchanger through a first branch, the first end of the second refrigerant pipe is connected with the second end of the first refrigerant pipe through a second branch, the second end of the second refrigerant pipe is connected with a compressor, and the second branch is provided with a cooling device for cooling the corresponding internalrefrigerant. During heating, the refrigerant of the second branch enters the second refrigerant pipe after being cooled by the cooling device, the refrigerants of the two pipes have the temperature difference and can exchange heat with each other again, so that the secondary overcooling purpose is achieved, the temperature difference between the refrigerants and the outdoor low-temperature environment is enlarged, the heat exchange efficiency is improved, and the problems that in the prior art, during heating of the air conditioner, heat exchange of the refrigerants indoor is insufficient, sothat after the refrigerants undergo throttling and cooling, the temperature difference between the refrigerants and the outdoor low-temperature environment is a little low, the evaporation heat exchange effect is poor, and the heat exchange requirement during heating circulation can not be effectively met are solved.

The invention discloses a heat transfer enhancing anti-corrosion coating material and a preparation method thereof. The heat transfer enhancing anti-corrosion coating material comprises the componentsin percentage by mass: 20-60% of a binder, 5-30% of a high-thermal conductivity material, 5-30% of a high-emissivity material, 2-20% of a heat-resistant anti-corrosion pigment, 0.5-5% of an additiveand 0-50% of a dispersion medium. The coating material is prepared by a special preparation method, and is better in homogenization and stable in storage. The coating material not only has excellent heat resistance, but also has a good heat transfer enhancement function; and the coating material is dense, has good corrosion resistance to the corrosive atmosphere and has good adhesion to metal substrates.

The invention relates to a heat exchanger core for heat exchange between more than three fluids. The heat exchanger core is formed by alternately overlaying a first heat exchange plate group, a secondheat exchange plate group, ..., and an nth heat exchange plate group, wherein each heat exchange plate group bears a first heat exchange fluid, ..., and the nth heat exchange plate group bears an nthheat exchange fluid; each heat exchange plate is composed of a substrate and a heat exchange flow channel machined on the substrate through chemical etching, and the two ends of the heat exchange flow channel are located on the side edge of the substrate and are provided with an inlet and an outlet for the heat exchange fluids respectively. Each heat exchange plate group includes more than more identical heat exchange plate. Projections of fluid inlets and outlets of different heat exchange plate groups in the direction perpendicular to the heat exchange plates are staggered and do not overlap with each other, wherein n is a positive integer no less than 3. According to the heat exchanger core, by reasonable arrangement of the flow channels of the heat exchange plates and the inlets and the outlets, simultaneous heat exchange between multiple fluids is achieved, and the heat exchange plates and the flow channel structures can be designed into any shape and any size, to meet heat exchange requirements.

The invention discloses a device for producing spodumene and a preparation process. The device comprises a coarse particle suspension preheater, a rotary kiln, a separating valve and a leakage-free grate type cooling machine which are sequentially connected. The preparation process comprises the steps of preheating by adopting the coarse particle suspension preheater, roasting and transforming by adopting the rotary kin, separating by adopting the separating valve, and cooling by adopting the leakage-free grate type cooling machine. According to the device, by designing the coarse particle suspension preheater, tail gas of the rotary kiln is fully utilized for preheating, thus the energy consumption is reduced; by adopting the separating valve, the spodumene discharged out from the kiln can be effectively separated, and the safe and smooth operation of the whole system is ensured; by adopting the leakage-free grate type cooling machine, an optimal cooling effect can be achieved, and heat carried away by the spodumene discharged out from the kiln is fully utilized, thus the energy consumption of the system is reduced. The device realizes large-scale production and central automatic operation control of the spodumene, thereby greatly increasing the labor productivity and being better in economic benefit and environment protection benefit.

A box-shaped stacked heat exchanger with one of mediums interchanging heat provided with multiple flow channels comprises a heat exchange core and is characterized in that the number of the flow channels of one heat exchange medium is increased through the mode of increasing heat exchange plates and heat exchange devices, under the action of corner hole backing plates, the heat exchange medium can flow in the same direction in the heat exchange devices of the multiple adjacent flow channels at the same time in a parallel-connection mode, but the other heat exchange mediums interchanging heat still flow in the original alternate-heat-exchange single-layer flow channels and the original alternate-heat-exchange heat exchange devices. In the heat exchange core, the number of the flow channels of one of the heat exchange mediums is larger than the number of the flow channels of the other heat exchange mediums, so that alternate heat exchange between the walls of the single-layer flow channels and the walls of the multilayer flow channels through the heat exchange mediums interchanging heat is achieved.

The invention discloses an immersion type liquid-cooled cabinet, which comprises an outer box body and an inner box body, wherein the inner box body is fixed inside the outer box body, the inner box body is loaded with a non-conductive liquid, heat production components and a propeller device are immersed in the liquid, the inner wall of the inner box body is provided with a condenser tube set, afan assembly and an electrical fitting installation interface above the liquid level, the top of the inner box body is provided with a detachable sealing cover, and the top of the outer box body is provided with a reversible upper cover. The heat production components are immersed in the non-conductive liquid, the non-conductive liquid accelerates the flow under the stirring of the propeller device so as to promote the heat dissipation, and the condenser tube and the fan assembly above the liquid level carries out heat dissipation on a gas above the liquid at the same time, so that the combination of the two significantly improves the heat dissipation effect.

The invention discloses a fresh air purifier comprising the following units: a housing; a heat exchange module arranged in the housing, wherein the heat exchange module and the housing enclose to form an air inlet cavity, an air outlet cavity, an air return cavity and a fresh air cavity through a plurality of isolation plates; a first blower and a second blower respectively arranged in the air outlet cavity and fresh air cavity; a filtering module arranged in the air inlet cavity; a first sensor module arranged in the air return cavity, wherein the first sensor module is used for detecting a first dust concentration, a carbon dioxide concentration, a peculiar smell concentration, a temperature and humidity of the return air. The fresh air purifier combines various sensors, and the sensor module is arranged in proper position, thus accurately detecting air parameters; a control method is combined so as to reasonably adjust the indoor air quality, thus satisfying air purifying and heat exchange demands, and improving energy utilization efficiency as possible.

The invention discloses a novel heat exchanger core, and belongs to the technical field of mechanical design. The novel heat exchanger core comprises etching plates, forming plates and partition plates; heat exchange runners are etched on the etching plates, and each heat exchange runner is composed of a direct runner and an oval runner which are alternatively arranged; the direct runners and the oval runners are communicated; the long axes of the oval runners and the central axes, in the liquid flowing direction, of the direct runners are located on the same straight line; the n etching plates and the m forming plates are alternatively arranged, wherein n is larger than or equal to 1, m is larger than or equal to 1, and m and n are both positive integers; the position between the etching faces of adjacent etching plates and the forming plates, the position between the two adjacent forming plates and the position between the etching faces of the two adjacent etching plates are each provided with one partition plate; according to the heat exchanger core, the characteristics of a micro-channel heat exchanger and a plate type heat exchanger are integrated, the use condition that the working medium cleaning degree is not high is met, and the novel heat exchanger core can be particularly suitable for the cooling working procedure of natural gas of an offshore work platform.

The invention discloses a heat exchanger, a thermal management system of a vehicle and the vehicle. The heat exchanger comprises a body and two joints; the body comprises a shell and a plurality of channels formed in the shell; each channel penetrates through the shell from a first end of the shell to a second end of the shell; the plurality of channels comprise the first channel and the second channel, and the first channel is arranged around the second channel; the two joints are arranged at the first end and the second end of the shell separately; and each joint comprises a first connectingpipe and a second connecting pipe, wherein the first connecting pipe communicates with the first channel, and the second connecting pipe communicates with the second channel. The heat exchanger is simple in structure, convenient to process and capable of realizing heat exchange among multiple media.

The invention provides a simple evaporator which comprises a fixing plate, a heat exchange unit, a moveable plate and a lateral bracket, wherein the heat exchange unit, the moveable plate and the lateral bracket are successively arrayed on a side wall of the fixing plate; U-shaped slots are arranged on the peripheries of the fixing plate and the moveable plate; the heat exchange unit comprises a plurality of heat exchange sets and a sealing gasket; corner holes for medium runners are formed in the four corners of a heat exchange plate; a flow guide area, a flow-splitting area and a heat exchange area are successively distributed on the heat exchange plate along the corner holes toward the center of the heat exchange plate; the heat exchange area is divided into a first heat exchange area and a second heat exchange area by taking the vertical central line of the heat exchange plate as a datum; the corner holes include a first medium inlet, a first medium outlet, a second medium inlet and a second medium outlet arranged in the flow guide area. The simple evaporator provided by the invention can meet the heat exchange requirement and can increase the heat exchange efficiency; a simple and compact structure is adopted, so that the device can be conveniently cleaned and maintained; the detaching is convenient; the heat exchange plate can be conveniently added and reduced; the sealing effect is better; the simple evaporator is fit for industrial wide popularization.

The invention relates to a process steam flow control apparatus, comprising a steam dividing cylinder and a plurality of process steam supply units communicated respectively with the steam dividing cylinder; each process steam supply unit comprises a steam supply pipeline communicated with the steam dividing cylinder, first and second pneumatic valves arranged in parallel on the steam supply pipeline, and a time-control switch control box electrically connected respectively to the first and second pneumatic valve, the tail end of the steam supply pipeline is provided with a heat exchanger, and process steam in the steam dividing cylinder is delivered to the heat exchangers after flow is adjusted through the process steam supply units. Compared with the prior art, the process steam flow control apparatus has the advantages that the two pneumatic valves connected in parallel and having different diameters are provided, openings of the two pneumatic valves are intelligently controlled through the time-control switch control box according to actual process needs, and required heat is provided for process water; adjusting precision is high, adjusting flexibility is good, the apparatus has long service life and good stability and reliability.

The invention relates to a high-temperature and high-pressure micro tube and shell type heat exchanger. The heat exchanger is simple and compact in structure, internal flow and temperature distribution is uniform, the heat exchange efficiency is high, the sealing performance is good, and resistance to high temperature and high pressure is achieved. The heat exchanger structurally comprises a heatexchanger shell, tube boxes and heat exchanger tube bundles. The tube boxes are mounted at the two ends of the heat exchanger shell. A cold fluid inlet is formed in one tube box, a cold fluid outlet is formed in the other tube box, and a hot fluid inlet and a hot fluid outlet are formed in the heat exchanger shell. The multiple heat exchanger tube bundles are axially distributed in the heat exchanger shell, and a tube plate sealing device is arranged in each tube box. The two ends of the multiple heat exchanger tube bundles are inserted into the tube plate sealing devices and sealed by the tube plate sealing devices, one end of each heat exchanger tube bundle communicates with the cold fluid inlet, and the other end of each heat exchanger tube bundle communicates with the cold fluid outlet. Each heat exchanger tube bundle is a sinusoidal bent tube or a trapezoidal bent tube.

The invention discloses a vehicle heat exchange system and a vehicle with the same. The vehicle heat exchange system comprises a battery pack heat exchange loop, an electric control motor heat dissipation loop, a passenger compartment refrigeration loop and a passenger compartment heating loop. The battery pack heat exchange loop internally comprises a first heat exchange section provided with a battery pack and a second heat exchange section provided with a battery pack heat exchanger; the electric control motor heat dissipation loop comprises a first heat dissipation section provided with anelectric appliance and a second heat dissipation section provided with a radiator outside the vehicle. The passenger compartment refrigeration loop comprises a refrigerating main circuit provided with a compressor, a first refrigerating branch circuit connected with the battery pack heat exchanger, a second refrigerating branch circuit provided with an evaporator, a third refrigerating branch circuit provided with an external heat exchanger and a fourth refrigerating branch circuit provided with a heat pump heat exchanger. The passenger compartment heating loop is provided with a heater connected with the heat pump heat exchanger. According to the vehicle heat exchange system, the heat exchange efficiency is improved while the vehicle heat exchange requirement is met.