17results about How to "Change flow path" patented technology

The invention belongs to the technical field of heat exchange equipment, and particularly relates to a double-layer coil pipe type multi-stage heat exchanger and a heat exchange method thereof.The double-layer coil pipe type multi-stage heat exchanger comprises multiple heat exchanger bodies which are sequentially connected in series, each heat exchanger body comprises an outer cylinder, an inner cylinder, a first-layer coil pipe and a second-layer coil pipe, and each outer cylinder is arranged on the outer wall of the corresponding inner cylinder in a sleeving mode and provided with a fluid inlet and a fluid outlet; a fluid inlet and a fluid outlet which are communicated are formed in the inner cylinders, the fluid outlet of the upper-stage inner cylinder is communicated with the fluid inlet of the lower-stage inner cylinder, and the first-layer coil pipe and the second-layer coil pipe are both arranged in an annular cavity formed by the outer cylinder and the inner cylinders.

The invention relates to the technical field of kitchen appliances, in particular to an integrated range hood system. The integrated extractor hood system is characterized in that a heat exchange cavity of a shell comprises a first area and a second area which are independent from each other, a phase change evaporator is arranged in the first area, and a phase change condenser is arranged in the second area; the oil smoke suction channel is located in the first area and does not communicate with the heat exchange cavity, and in the height direction of the shell, the phase change condenser is higher than the phase change evaporator; the flow guide plate is arranged on an airflow flowing path between the fresh air inlet and the air supply outlet, and at least part of the flow guide plate is arranged to be capable of moving up and down in the height direction of the shell so as to change the angle of the flow guide plate relative to the fresh air inlet, so that the angle of the flow guide plate can be adjusted according to different working requirements; the fresh air flow field is uniform, and the heat exchange efficiency is improved; the power output end of the driving mechanism is in driving connection with the flow guide plate.

The server case comprises a case body, a heat dissipation pipe, a heat dissipation adjusting mechanism, an adjusting auxiliary mechanism and a side wall hanging mechanism, the heat dissipation adjusting mechanism comprises a push rod, a rotating sleeve, a push frame and a flexible corrugated sheet, and the adjusting auxiliary mechanism comprises an adjusting pipe, a fixing plate, a supporting bearing, a gear disc and a rotating gear. The side wall hanging mechanism comprises a mounting frame, a base, a first movable plate, a second movable plate and a mounting plate, the position of a push rod can be accurately controlled through threaded fit, so that the positions or shapes of a push frame and a flexible corrugated sheet are adjusted, the air flowing path in the heat dissipation pipe is effectively changed, the heat dissipation efficiency is improved, and the service life of the heat dissipation pipe is prolonged. And the gear disc is meshed with the rotating gear, so that the adjusting pipe can accurately rotate, the position of the internal heat dissipation assembly is finely adjusted, and the optimal heat dissipation effect is achieved.

This utility model discloses an air compressor filter device and an air compressor. The air compressor filter device includes a filter housing; a filter cover; the filter cover also forms a second chamber opening towards a first chamber; the air compressor filter device further includes: a filter shaft with opposing front and rear ends, the filter shaft having a T-shaped channel structure, the first and second ports of the T-shaped channel structure being located at the front end of the filter shaft and communicating with the second chamber, the third port of the T-shaped channel structure communicating with the inner hole of the air outlet connector; and an L-shaped channel structure, the L-shaped channel structure being located within the first chamber, one end of the L-shaped channel structure communicating with the air inlet, and the other end communicating with the second chamber. This application, by designing the L-shaped and T-shaped channel structures, changes the airflow path, allowing noise to circulate inside the filter, reducing the propagation decibels, and effectively reducing the noise generated during air compressor operation.

The utility model relates to the technical field of gas-fired hot water boilers, in particular to a full-corrugated hearth structure of a gas-fired hot water boiler, which comprises a hot water boiler main body, the hot water boiler main body consists of an outer heat preservation tank and an inner hearth arranged in the outer heat preservation tank, and a corrugated flow guide ring is arranged on a barrel body of the inner hearth. A plurality of inclined flow guide plates are fixedly installed on the inner wall of the outer heat preservation tank, the ends of the inclined flow guide plates are inserted into the inwards-concave portions of the corrugated flow guide rings, and hot air circulation gaps are formed between the ends of the inclined flow guide plates and the corrugated flow guide rings; a coiled pipe is fixedly installed at the gas outlet end of the waste gas exhaust pipe, a waste heat recovery assembly is arranged on one side of the outer heat preservation tank, and the waste heat recovery assembly comprises a waste heat recovery tank arranged outside the coiled pipe in a sleeving mode. The heat exchange area is increased, efficient heat transfer is achieved, and the energy utilization rate is increased.

The application relates to the technical field of heat exchange, in particular to a high-efficiency shell-and-tube heat exchanger and a preparation method thereof. The high-efficiency shell-and-tube heat exchanger comprises a shell, a head assembly, a tube bundle assembly, a first flow control assembly, a second flow control assembly, a first fixing assembly and a second fixing assembly. The tube bundle assembly, the first flow control assembly and the second flow control assembly are arranged along the depth direction of the shell, the tube bundle assembly penetrates through the first and second flow control assemblies and is in sliding connection with the first and second flow control assemblies, and a pitch adjusting assembly in the shell can adjust the distance between the first and second flow control assemblies. The liquid inlet part and the liquid outlet part are diagonally distributed, the first and second flow control assemblies are combined to guide the fluid flow, and a pressure stabilizing part and a heat conduction assembly are arranged. The tube bundle assembly adopts a multi-stage variable-diameter design, and the second fixing assembly comprises a flow collecting piece and a fixing piece. The above scheme avoids the mixing of the tube-side medium and the shell-side medium, reduces the thermal expansion coefficient of the connection part and stress concentration, solves the problem of uneven heat transfer efficiency caused by uneven distribution of the shell-side fluid, and improves the temperature uniformity of the heat exchanger and the heat exchange efficiency.

The utility model discloses a film spraying device for an agricultural degradable mulching film, and relates to the technical field of film spraying devices. The liquid mulching film mixing vehicle comprises a vehicle body, a liquid storage barrel is mounted at the top of the vehicle body, and the liquid mulching film mixing vehicle further comprises a mixing part, a spraying part and a spraying part, the mixing part is mounted in the liquid storage barrel, and the mixing part is used for mixing liquid mulching film raw materials in the liquid storage barrel; and a film spraying part. Through the mixing part, when liquid mulching film raw materials in the liquid storage barrel need to be mixed, the motor is firstly started, the motor drives the rotating shaft to rotate, and the rotating shaft drives the spiral stirring blades to rotate to mix and stir the liquid mulching film raw materials in the liquid storage barrel when rotating; when the liquid mulching film raw materials are sprayed out, the liquid mulching film raw materials can impact the arc-shaped seats and the convex blocks to be disturbed, and the flowing path of the liquid mulching film raw materials is changed, so that the liquid mulching film raw materials are fully and uniformly mixed, precipitation or layering of the liquid mulching film raw materials is avoided, and stable quality of sprayed mulching films is ensured.

The invention discloses a three-sleeve millichannel reactor which comprises a reaction unit, a reaction liquid supply unit and a constant-temperature liquid supply unit, the reaction unit comprises a first pipe body, a second pipe body and a third pipe body which are sequentially sleeved from inside to outside; the outer wall of the first pipe body and the inner wall of the second pipe body form a first annular space; the outer wall of the second pipe body and the inner wall of the third pipe body form a second annular space; the reaction liquid supply unit and a liquid inlet of the first annular space can be connected and disconnected, and the constant-temperature liquid supply unit and a liquid inlet of the second annular space can be connected and disconnected; a first turbulent flow assembly is arranged in the first annular space, and a second turbulent flow assembly is arranged at a liquid inlet of the first annular space; the second turbulent flow assembly comprises a first channel and a second channel; the first channel is communicated with the first pipe body, and the second channel is communicated with the first annular space. According to the reactor, through the design of the multi-layer sleeve structure, the turbulent flow assembly and the liquid inlet, the mixing uniformity degree of reactants in the first annular space is promoted, and a powerful guarantee is provided for efficient chemical reaction.

The invention discloses a plastic shell with a heat dissipation water channel for a new energy automobile, and relates to the technical field of new energy automobiles, the plastic shell comprises a plastic shell body, a packaging groove and a water cooling groove are formed in the plastic shell body, and the water cooling groove is located on the back face of the packaging groove; a capacitor core, a capacitor positive electrode leading-out copper bar and a capacitor negative electrode leading-out copper bar are packaged in the packaging groove through epoxy resin, a water inlet and a water outlet which are communicated with the water cooling groove are formed in the plastic shell body, a first adjusting mechanism is arranged on the water inlet, and a second adjusting mechanism is arranged on the water outlet. According to the plastic shell with the heat dissipation water channel for the new energy automobile, by arranging the heat dissipation mechanism, the heat transfer efficiency and the heat dissipation effect are improved, and the problems that in the prior art, heat dissipation only depends on the water channel of the shell, heat cannot be evenly conducted to the water channel of the shell to be taken away by cooling liquid, local heat accumulation occurs, and heat dissipation is poor are solved.

The present invention discloses a mechanical ventilation pipe with adjustable pipe opening direction and a method for using the same, comprising jet fans (27) installed at intervals in a tunnel, a longitudinal steel air duct (1) installed along the tunnel direction at the top of the tunnel, ventilation pipes connected at intervals in the longitudinal steel air duct (1) near the jet fans (27) area, and an adjustment device on the ventilation pipe that can achieve one or a combination of connection, disconnection, displacement and movement with the air outlet of the jet fans (27). The present invention makes full use of the spare space of the tunnel arch and, based on the existing fans in the tunnel, adjusts the mechanical ventilation pipe to connect with the tunnel fans, ingeniously changes the flow path of the wind flow, and transforms the longitudinal ventilation of the jet fans in the normal operation state into semi-transverse ventilation in the case of tunnel fire, which can greatly improve the smoke exhaust efficiency of the tunnel without increasing the operation cost too much, thereby improving the escape probability of trapped personnel.

This invention discloses an injection molding die for motor magnets, comprising a lower mold assembly and an upper mold assembly. The lower mold assembly includes a first mold part and a first cavity disposed on the first mold part. The upper mold assembly includes a second mold part for use with the first mold part. The second mold part has a second cavity disposed on the side near the first mold part. The second cavity is recessed from the second mold part and communicates with the first cavity. This achieves the effect of concentrating the mold parting marks generated during the injection molding process at the annular protrusion structure, thereby reducing the formation of mold parting lines and burrs on the inner and outer annular walls of the injection molded part and improving product yield.

The utility model discloses a shell, a camera device and a vehicle. The shell comprises a shell body, the shell body comprises a light-transmitting area, an annular glue bearing face, a first check ring and a second check ring, the annular glue bearing face, the first check ring and the second check ring are arranged around the light-transmitting area, and the first check ring and the second check ring are fixedly arranged on the annular glue bearing face at intervals to form an annular glue containing groove. The shell body further comprises at least one matching part arranged on the annular glue bearing face, the matching part is arranged in the glue containing groove, and a height difference exists between the matching part and the annular glue bearing face. The shell is applied to the protective shell assembly or the lens assembly, the bonding strength of the protective shell assembly and the lens assembly can be improved, and then the durability of the camera device can be improved.

The present invention relates to the field of pressure detection, and discloses a multi-way valve pressure detection mechanism, comprising a multi-way valve body, an air inlet pipe is fixedly installed on one side of the multi-way valve body, a pressure measuring tube is fixedly installed on the top of the air inlet pipe, and also comprises: a stabilizing component, the stabilizing component comprises a rotating rod rotatably installed in the pressure measuring tube, a rotating plate is fixedly installed on the bottom end of the rotating rod, a cross plate is fixedly installed on the top end of the rotating rod, and a piston plate is sealingly and slidably installed in the inner cavity of the pressure measuring tube; the impact force generated by instantaneous airflow fluctuation can be buffered and its speed can be slowed down, and the pressure can be automatically relieved according to the size of the pressure, which can effectively improve the stability of the pressure detection process, and improve the safety while improving the working efficiency of the pneumatic system, avoiding the instability of the pressure detection process caused by the influence of instantaneous airflow fluctuation in the past.

The utility model discloses a plate heat exchanger with a turbulent flow structure, which belongs to the field of plate heat exchangers and comprises a heat exchanger body, the outer end of the heat exchanger body is movably connected with a positioning mechanism, the inner end of the positioning mechanism is provided with a turbulent flow mechanism, and the positioning mechanism comprises a reinforcing rod. The reinforcing rods are evenly distributed at the inner end of the heat exchanger body, the outer ends of the reinforcing rods are each sleeved with a plurality of limiting blocks, the outer ends of the limiting blocks are each movably connected with a reinforcing ring, and each reinforcing ring is of a semicircular structure; the limiting blocks and the reinforcing rods can be reinforced and supported by arranging the reinforcing rings, during disassembly and maintenance, the multiple positioning rods are pulled to drive the clamping blocks to relieve positioning with the reinforcing rods, the multiple limiting blocks and the reinforcing rods can be conveniently separated, the internal turbulent flow structure of the plate heat exchanger is more convenient to maintain, and the maintenance efficiency is improved. And the practicability of the plate heat exchanger with the turbulent flow structure is improved.

The present application relates to the technical field of steam equipment, and discloses a steam heat source machine and a steam production method thereof, which comprise an organism, a combustion chamber, a combustion device, a heat exchange pipe, a smoke box and an oil supply module, the top of the combustion chamber is provided with an upper header communicating with the heat exchange pipe, the bottom of the combustion chamber is provided with a lower header communicating with the heat exchange pipe, the upper end of the upper header is provided with a gas outlet pipe seat, the lower header is connected with a water supply module, the top of the combustion chamber and the inner side of the upper header are provided with an upper cover, the bottom of the upper cover is provided with a smoke blocking layer, the side wall of the combustion chamber is provided with a smoke outlet, the combustion chamber is provided with a smoke blocking tile surrounding the heat exchange pipe, the smoke blocking tile is provided with a smoke outlet hole, and the smoke blocking tile and the side wall of the combustion chamber are spaced apart, and the outer side wall of the heat exchange pipe is provided with helical fins distributed in the circumferential direction. In this way, the flue gas is guided to spiral along the helical fins and spiral around the outer side wall of the heat exchange pipe, so that the contact time and the heat exchange path of the flue gas and the heat exchange pipe are prolonged, and the heat exchange efficiency is improved.

The utility model relates to green cement pole environmental protection type anticorrosive coating technical field, and disclose a kind of green cement pole environmental protection type anticorrosive coating integrated spraying device, including spraying tank, the spraying tank fixed mounting is installed on the surface of mobile seat, the surface fixed mounting of mobile seat has support, this green cement pole environmental protection type anticorrosive coating integrated spraying device, by being provided with control assembly, when stirring rod rotates, the fixed connecting plate of the surface of stirring rod can rotate synchronously, the fixed scraper of the surface of connecting plate can be scraped when rotating, the coating adhered to the inner wall of spraying tank, simultaneously when round bar touches the section of slide bar, the fixed arc plate of the surface of slide bar and slider can be transverse motion on the surface of flat bar, when slider moves, the fixed strut of the surface of slider by connecting rod can be transverse motion synchronously, to change the flow path of coating, avoid causing coating to produce delamination and influence spraying effect.

The invention discloses an airflow-variable grain drying section, drying equipment and a working method, solves the problem that an airflow flowing mode in a grain drying section in the prior art is fixed and cannot be adjusted, and has the beneficial effect that the airflow flowing mode of the drying section is adjustable. Comprising a supporting frame body, at least two layers of drying corner boxes are supported in the supporting frame body, the two ends of each drying corner box communicate with the outside through the supporting frame body, ventilation openings are formed in the parts, located in the supporting frame body, of the drying corner boxes, and the supporting frame body supports an air adjusting component on the outer side face of the communicating position of the drying corner boxes and the outside; the air adjusting component is located on the air inlet side and the air outlet side of the drying corner box, the air adjusting component can move relative to the supporting frame body, the air adjusting component is provided with at least two layers of communicating ports, and in the process that the air adjusting component moves relative to the supporting frame body, the communicating port of one layer can communicate with the drying corner box so as to change the flowing path of hot air entering the supporting frame body.