292 results about "Straight tube" patented technology

The present application relates to the field of asphalt mixing, especially to a drum-type asphalt mixing equipment flue gas waste heat recovery system. The drum-type asphalt mixing equipment flue gas waste heat recovery system comprises a flue gas pipeline, which is composed of a straight pipe part, a corrugated part and a connecting part, one corrugated part is fixedly connected to each end of the straight pipe part, and one connecting part is fixedly connected to the end of each of the two corrugated parts; a plurality of hollow rings are arranged, which are fixedly connected to the straight pipe part and are equidistantly distributed in the straight pipe part, and a solid ring is arranged between every two adjacent hollow rings; and an outer layer stepped heat exchange system is arranged on the plurality of hollow rings and the plurality of solid rings. The temperature of the hot water discharged from the infusion pipe is adjusted within a preset range, the recovered heat is distributed in steps, the demand for hot water of different temperatures in the actual use process is met through further adjustment, the adaptability and practicality are improved, and energy waste caused by cooling or heating after recovering heat is avoided.

The utility model discloses a safe rope lock catch relates to the technical field of lock catch, and the utility model discloses a lock catch main stem, one end fixed connection of lock catch main stem is limited to the rod, the other end fixed connection of lock catch main stem has the straight pipe, and the limited rod is located the top of straight pipe, the bottom center of limited rod is equipped with the positioning slot, and the outer ring of limited rod and the bottom is equipped with the limit hole no.

The utility model relates to electric power pipe technical field especially a kind of recycled material CPVC electric power pipe, including first straight pipe and round block, the inner wall front of first straight pipe is fixedly connected with the outer wall of round block, the outer wall of round block is processed with multiple through ports, the upper end surface of first straight pipe is connected with protective structure, the outer wall rear of protective structure is connected with sheath, through the front and rear movement of second straight pipe in protective structure, it will be the front and rear sliding of sleeve plate in the outer wall of curved plate, curved plate and sleeve plate will change with the length change of telescopic pipe, while curved plate cooperates sleeve plate will shield the top of telescopic pipe, prevent soil directly to hold telescopic pipe, prevent the fracture of electric power pipe and telescopic end connecting place, avoid the soil in the inside of electric power pipe.

This application relates to an automatic processing device for Bourdon tubes, comprising a base, a forming column fixed to the base, a bending mechanism for deforming a straight tube, and a cutting mechanism for cutting the straight tube. The forming column is further provided with a lifting mechanism for moving the Bourdon tube upwards. The lifting mechanism includes several lifting blocks slidably disposed on the outer wall of the forming column and a sliding rod coaxially passing through the forming column. The upper end of each lifting block abuts against the lower end of the Bourdon tube, and one end of each lifting block extends into the forming column and is fixed to the sliding rod. The upper end of the sliding rod is positioned above the upper surface of the forming column. After the bending mechanism shapes the Bourdon tube and the cutting mechanism separates the Bourdon tube from the straight tube, the lifting blocks apply force to the Bourdon tube, thereby moving it upwards to above the forming column, whereby the Bourdon tube can be directly grasped and unloaded.

To provide a protruding member, piping member, and piping system that can improve flow rate while enabling miniaturization. [Solution] The projection member is positioned downstream of the elbow that changes the direction of the flow path, and is positioned inside a straight pipe having first and second inner surfaces with planar shapes corresponding to the inner and outer circumferences of the elbow, respectively. It has a first end facing upstream and a second end facing downstream, and a curved working surface extending from the first end to the second end such that it has a top between the first and second ends that minimizes the cross-sectional area of ​​the flow path of the straight pipe. If the distance between the first and second inner surfaces is Dv, the distance between the corner on the inner circumference of the elbow and the first end in the direction of the central axis of the straight pipe is a, b, and c, respectively, and the height at the top is h, then the following conditions are satisfied: Dv ≤ 200 mm, 0 ≤ a ≤ 0.2 Dv, 0.1 Dv ≤ b ≤ Dv, 0.2 Dv ≤ c ≤ 3.0 Dv, and 0.05 Dv ≤ h ≤ 0.70 Dv.

The gas-liquid separator for compressed air provided by this utility model includes a tank body, an exhaust pipe, and a swirl vane device. The tank body includes a cylindrical tank body, an elliptical end cap connected to the top of the tank body, and a sealing plate connected to the bottom of the tank body. The tank body is provided with an air inlet and an exhaust outlet. The exhaust pipe is located inside the tank body, with its upper end connected to the exhaust outlet and its lower end extending downward and coaxial with the tank body to form a straight pipe section. The swirl vane device is sleeved on the upper end of the straight pipe section and is lower than the air inlet. By sleeved with an elliptical guide shroud on the straight pipe section, which is located below the swirl vane device and higher than the lower end of the straight pipe section, and a cooling coil for cooling is set between the elliptical guide shroud and the straight pipe section, the inlet and outlet ends of the cooling coil penetrate the tank body and extend outward. This not only utilizes the guiding effect of the elliptical guide shroud to prevent liquid water from being re-entrained into the exhaust pipe by the airflow, but also enables water vapor condensation through the cooling coil, thereby improving the gas-liquid separation rate and reducing the temperature of the compressed air, making it suitable for subsequent use.

This utility model belongs to the field of radar antenna technology and relates to a quick-release triangular dipole antenna. The antenna includes a connecting wire, at least one triangular dipole, and several linear dipoles. The connecting wire includes a base and several parallel metal tubes. Each metal tube is connected to one end of the base. One end of each linear dipole is fixedly connected to a metal tube. The triangular dipole includes a first linear dipole, a second linear dipole, a bent dipole, a mounting base, a pressure block, and a wing screw. On the one hand, dividing the triangular dipole into three sections greatly reduces the packaging size, and the tubular structure of both the linear and bent dipoles reduces the overall antenna weight, making it very suitable for portable use. On the other hand, the mounting structure proposed in this utility model is stable and reliable, and easy to assemble and disassemble.

This utility model relates to the field of heat exchange boiler technology, specifically a multi-stage heat exchange waste heat combustion boiler device, comprising a furnace body. A ring pipe is installed on the furnace wall below the furnace body, and multiple straight pipes in a circular array are installed on the furnace wall above the furnace body, communicating with the ring pipe. Multiple vertically arranged annular pipes are installed inside the furnace body. The advantages of this utility model are: the ring pipe is installed on the furnace wall below the furnace body, and multiple uniformly arranged straight pipes are installed on the furnace wall above the furnace body, communicating with the ring pipe. Multiple vertically arranged annular pipes are installed inside the furnace body, communicating with each other through connecting pipes. A straight cylinder is installed in the middle of the furnace body, communicating with the lowest annular pipe through a connecting pipe. In operation, flue gas is introduced through the ring pipe, sequentially entering multiple straight pipes and annular pipes, and exiting from the straight cylinder. By injecting the liquid to be heated into the furnace body, multi-stage heat exchange of the flue gas can be achieved, realizing the utilization of heat.

The utility model relates to sofa frame technical field, concretely is a kind of adjustable function sofa frame of sitting depth, including straight pipe and moving frame, the straight pipe is set to two, two the straight pipe front and back two sides terminal between respectively connected with flat pipe and bottom cross pipe, the upper portion of straight pipe is equipped with U-shaped frame, the inside of U-shaped frame is equipped with guide rail, the lower portion of guide rail is equipped with second pulley.This kind of adjustable function sofa frame of sitting depth, the telescopic of electric telescopic link can drive moving frame relative straight pipe and back frame to move, to adjust the length that moving frame front portion extends out flat pipe, adjust the overall sitting depth of sofa frame, and in the adjustment process, first pulley and second pulley always provide stable support in the lower portion of moving frame, avoid the problem such as adjustment difficulty caused by moving frame gravity, reduce the abrasion between moving frame and U-shaped frame simultaneously, prolong the service life of sofa.

This utility model provides an oil pipeline with a heating mechanism, including a bend, a connecting flange, a horizontal pipe, an annular heating element mounting base, a semi-annular heating element, a semi-bent pipe heating element, a spliced ​​insulated bend, and a spliced ​​insulated straight pipe. The horizontal pipe section is covered with a large number of semi-annular heating elements, allowing for replacement of damaged individual small-sized components, making maintenance more convenient. The semi-bent pipe heating elements are fixed on the annular heating element mounting base along the length of the bend, covering the outer wall of the bend. Each semi-bent pipe heating element is small in size and heats up when energized. The entire bend section is covered with two semi-bent pipe heating elements. Since the bend itself is relatively short, the semi-bent pipe heating elements on both sides can be replaced for damaged individual components, making maintenance more convenient.

The application discloses a corrosion-proof hydrogen chloride differential pressure flowmeter and a mounting method thereof. The differential pressure flowmeter comprises a throttling assembly, the throttling assembly comprises a front straight pipe section, a rear straight pipe section and a throttling orifice plate, the straight pipe sections are provided with positive pressure taking devices and negative pressure taking devices, the pipe flanges of the front straight pipe section and the rear straight pipe section are connected through a stud bolt, and the stud bolt is threadedly connected with a nut one. The positive pressure taking devices and the negative pressure taking devices are both welded with pressure taking flanges, and the throttling orifice plate is arranged between the positive pressure taking devices and the negative pressure taking devices. The method comprises the following steps: a, mounting a clamping structure; b, mounting an adjusting frame; c, mounting the front straight pipe section and the rear straight pipe section on a mounting support; d, cleaning the front straight pipe section and the rear straight pipe section; e, adjusting the front straight pipe section and the rear straight pipe section to a horizontal position; f, mounting the throttling orifice plate; and f, welding the pressure taking flanges. The throttling orifice plate can be conveniently replaced, and the measurement accuracy of the differential pressure flowmeter is ensured.

This utility model discloses an aeration device for treating residual water in ecological dredging of lake areas, relating to the field of sludge treatment technology. It has the advantage of allowing the water at the edge of the aeration tank to come into contact with air, thereby improving the sufficiency of contact between the water and air at the edge of the aeration tank. The key technical points are: it includes an aeration tank and straight pipes arranged on the upper surface of the aeration tank and distributed along the length of the tank opening. A blower is provided on the upper surface of the aeration tank to deliver air into the straight pipes. Multiple branch pipes are provided on the straight pipes, spaced apart along their length. Each branch pipe is connected to the straight pipe and extends into the aeration tank. A flexible hose is connected to the lower end of each branch pipe, and an aeration element is connected to the end of each flexible hose furthest from the branch pipe.

The application relates to a rotating plate type demolding mechanism of a pipe injection mold, which comprises a movable mold, a fixed mold and a demolding mechanism, the demolding mechanism comprises a straight pipe demolding assembly and a bent pipe demolding assembly; the bent pipe demolding assembly comprises a straight core, a bent pipe core, a rotating seat, a sliding seat, driving piece three and driving piece four, the straight core is fixedly arranged on the sliding seat, the bent pipe core is fixedly arranged on the rotating seat, a rotating rod is rotationally connected to the rotating seat, the rotating rod is fixedly arranged on the movable mold, the driving piece four drives the rotating seat to rotate, the sliding seat is slidably connected to the rotating seat in the core pulling direction of the straight core, and the driving piece three drives the sliding seat to move. The rotating seat can rotate around the rotating rod, the sliding seat slides on the rotating seat, the core pulling actions of the bent pipe core and the straight core can be orderly performed through the rotation of the rotating seat and the sliding of the sliding seat, compared with the traditional step-by-step core pulling which needs two groups of independent core pulling mechanisms, the mold structure is simplified, and the production efficiency and the reliability of the mold are improved.

The application discloses a kind of marine diesel engine high-pressure oil pipe assembly elbow clamp assembly and elbow pipe method, clamp assembly includes first 90 elbow clamp and secondary 170 elbow clamp, first 90 elbow clamp includes first mesa panel assembly welding, high-pressure oil pipe assembly end head limiting assembly, 2 interval setting straight pipe portion vertical clamping assembly, bending roller assembly and 90 bending positioning assembly.Secondary 170 elbow clamp includes second mesa panel assembly welding, 90 bending portion horizontal clamping assembly, straight pipe portion horizontal clamping assembly, bending roller assembly and 170 bending positioning assembly.Elbow pipe method includes 1) first 90 elbow pipe, 2) secondary 170 elbow pipe forming.The application is operated time-saving and labor-saving, ensures that the space size of high-pressure oil pipe group inlet and outlet has higher position precision.Obvious improvement is made to the elbow pipe quality of high-pressure oil pipe assembly, reduces the processing cost of high-pressure oil pipe assembly, and solves the twice bending problem of high-pressure oil pipe assembly.

The utility model relates to the technical field of foundation pit construction, disclose a kind of light well point precipitation device, including pumping main pipe, well point pipe, pumping pump;Pumping main pipe includes first straight pipe, second straight pipe, third straight pipe, fourth straight pipe, first straight pipe one end is closed, and the other end is detachably connected with second straight pipe by thread, fourth straight pipe one end is closed, and the other end is detachably connected with third straight pipe by thread, second straight pipe and third straight pipe are detachably connected by thread between, and the connecting place of second straight pipe and third straight pipe also is communicated with pumping pump. The utility model connects the first straight pipe, second straight pipe, third straight pipe, fourth straight pipe of pumping main pipe by thread with the way of repeatable disassembly and assembly by splitting, so that the disassembly construction of pumping main pipe is convenient and fast, time-saving and labor-saving, construction efficiency is high, need not cutting pipe when dismantling, avoid the damage to pipe, all pipes can be reused, can effectively reduce material cost.

The utility model relates to the technical field of pipeline dredging equipment, and discloses a sewage pipeline dredging device which comprises a blow-off pipeline, a fixed cylinder is arranged in the blow-off pipeline and arranged in the middle of the blow-off pipeline through a moving mechanism, and a washing mechanism is arranged in the middle of the fixed cylinder. The through groove is formed in the middle of the fixing cylinder, the lower middle portion of the supporting rod is rotationally connected to the left and right ends of the through groove, the middle of the roller is installed at the upper end of the supporting rod, and the left and right ends of the parallel rod are rotationally connected to the lower end of the supporting rod. According to the sewage pipeline dredging device, the parallel rod is pushed and pulled through the pull rod, so that the inclination angle of the supporting rod is changed, the sewage pipeline dredging device is further suitable for sewage pipelines of different sizes, a water pump is driven, water washes the impeller through conveying of a hose and a straight pipe and is sprayed out through a hole of the spray head, and the impeller drives the spray head to rotate; therefore, the sewage pipeline is dredged in all directions, and the dredging effect is improved.

This utility model belongs to the technical field of lubricating oil additive production equipment. Specifically, it discloses a reaction device for producing lubricating oil additives. The reaction tank is equipped with a stirring shaft, and the stirring shaft is fixedly connected from top to bottom with a paddle stirring blade, a double spiral stirring blade, and a turbine stirring blade. A processing box is fixedly connected to the top of the condenser, and a condenser tube is installed inside. A water pipe is sleeved on the outside of the straight part of the condenser tube, and a spiral guide plate is installed on the straight part inside. A vertically arranged reaction layer is fixedly connected in the second chamber, and several horizontally arranged activated carbon layers are fixedly connected in the first chamber. A liquid outlet pipe is fixedly connected to the bend at the lower end of the condenser tube. This utility model makes the reaction more uniform by setting three different stirring blades. By setting the condenser tube, reaction layer, and activated carbon layer, harmful gases can be purified multiple times to avoid environmental pollution.

A composite pizza oven comprises a shell body, a base, a gas valve, a burner, pizza stones and a flame guide plate, the shell body comprises an inner container and an outer shell, the rear portion of the inner container and the rear portion of the outer shell form a device cavity with a lower opening, and supporting tables are arranged on the lower portions of wall plates on the two sides of the inner container; the combustor comprises an injection pipe, a straight pipe type combustion part, a bent combustion pipe part and an annular combustion part, the flame guide plate is arranged on the rear portion of the inner container, the lower end of the flame guide plate is fixed to the base, the pizza stone is detachably matched with the supporting table, and the rear end of the pizza stone abuts against the flame guide plate. The straight pipe type combustion part is adjacent to the flame guide plate, the bent combustion pipe part penetrates through the flame guide plate, and the annular combustion part is arranged on the base and is opposite to the pizza stone; the gas valve is arranged in the device cavity and communicates with the injection pipe. Flames of the straight pipe type combustion part are arranged in the inner container and have a baking effect on the circumferential surface of food and a pizza tray; the annular burner is used for heating the bottom of the pizza tray, so that pizza stones are fried; the food maturing speed is accelerated.

The utility model discloses a novel type carrying and oiling device, including the single male end ball valve of connecting on oil pipe, the single male end ball valve is connected with Y type filter, and Y type filter is connected with DN50 straight pipe, and DN50 long elbow is connected with DN50, and the oil inlet of motor pump group is connected with DN50 long elbow, and the oil outlet of motor pump group is connected with DN40 long elbow, and DN40 long elbow is connected with DN40 straight pipe no.

The present application relates to sewage treatment technical field, specifically to a kind of weir gate water flow measurement method.The method measures the liquid level before weir gate, flow rate, the opening height of weir gate and the flow rate after water flow through weir gate, by measuring these more accurate data, avoid the flow rate of directly measuring weir gate water flow in traditional measurement, due to the existence of liquid level collapse and flow rate fluctuation, inaccurate condition, and these accurate data are calculated, more accurate measurement results can be obtained.The method of the present application overcomes the limitation that the traditional flow measurement must be straight inlet channel, can be applied to the application scene that water flow inlet channel has no straight pipe section and water flow changes greatly, has wide application range, compared with traditional measurement method, measurement error is reduced from about 20% to about 5%, greatly improves the precision of measurement, has important guiding significance for subsequent process control and reagent dosage in sewage treatment process.

This utility model discloses an anti-clogging structure for a pulse dust collector. The pulse dust collector has a clean air duct and fan connected to its left side for discharging filtered clean air, and a pulse air manifold installed on its right side for cleaning the dust collection bag. Its bottom features an anti-clogging discharge trough, including a dust collection trough, a dust inlet pipe, and an anti-clogging mechanism. In the anti-clogging mechanism, a straight pipe is connected to the bottom ash discharge port of the dust collection trough, and an inclined ash discharge pipe is fixed to the bottom side wall of the straight pipe with their inner cavities communicating. A lower end cover is fixed to the bottom of the straight pipe, and a servo motor is connected to a drive shaft via a coupling. The bottom section of the outer ring of the drive shaft has spiral blades that forcefully transport clogging dust downwards; the top section of the outer ring is connected to a scraper via a support rod. The scraper is close to the inner wall of the dust collection trough and can scrape off clumps of adhering dust. This utility model's anti-clogging structure effectively solves the problem of ash discharge clogging in pulse dust collectors, ensuring stable equipment operation and improving dust removal efficiency.

A boiler structure with the heating surface above the evaporator. Leakage in the four-tube structure of a waste heat boiler in a gas-steam combined cycle unit refers to the rupture and leakage of the four types of heating surface tubes (evaporator, superheater, reheater, and economizer) due to overheating, corrosion, wear, fatigue, or other reasons, leading to tube failure and potentially boiler accidents. This invention includes a first tube screen and a second tube screen, connected to an inlet header and an outlet header respectively via connecting pipes. The first tube screen has two rows of first heating surfaces, and the second tube screen has two rows of second heating surfaces. Both the first and second heating surfaces include multiple straight tube rows and multiple bent tube rows. The bent tube rows of the first and second heating surfaces are aligned and symmetrically bent. This invention is used for boilers with the heating surface above the evaporator.

The utility model relates to pipe processing equipment technical field and disclose a kind of forming die for cutting pipe machine auxiliary stamping part, including elbow bench, the middle position of elbow bench upper surface is fixedly connected with fixed plate, and one end of fixed plate is arc and located the middle position of elbow bench, and one end of fixed plate in the middle of elbow bench is connected with elbow assembly, the side wall of one end of elbow bench away from elbow assembly is connected with side pressure component, and the top of elbow bench is connected with down pressure component, and down pressure component is located the side of side pressure component close to elbow assembly.This kind of forming die for cutting pipe machine auxiliary stamping part, through the mutual cooperation of side pressure component, down pressure component and elbow assembly, can be bent pipe processing to different diameter straight pipe, so that elbow equipment adapts the elbow processing of different straight pipe, improves the efficiency of elbow processing, reduces equipment purchase cost.

This utility model relates to the field of welding torch technology, specifically to a composite barrel structure and welding torch for carbon dioxide welding torches. The composite barrel structure includes a straight tube section and a bent tube section. The straight tube section is connected to the torch body, and the bent tube section is connected and fitted to the straight tube section. The connection between the bent tube section and the straight tube section forms a rotating fit structure to adjust the angle of the bent tube section relative to the straight tube section in the circumferential direction. This utility model, through improvements to the fit structure of the bent tube section and the straight tube section, allows for flexible adjustment of the circumferential angle of the bent tube section, thus adapting to different working environments. When encountering relatively complex and difficult-to-operate welding positions, rotating the bent tube section allows for adjustment of the welding torch angle, enabling operation at different welding positions, improving work efficiency, reducing the labor intensity of welders, and consequently reducing welding quality problems.

This utility model discloses a side-mounted eccentric hemispherical valve, which consists of a ball valve mechanism and a valve cavity backflushing mechanism. In the ball valve mechanism, a driver drives the eccentric shaft to rotate, thereby causing the ball crown to rotate eccentrically within the valve body, realizing the opening and closing of the valve. The two ports of the valve body are connected to pipes via flanges and bolts for media flow. The valve cavity backflushing mechanism can flush the valve body cavity when needed. A miniature water pump draws liquid from the tank through a suction pipe, delivers it to a straight pipe through a drain pipe, and then into a sleeve. The sleeve has multiple fan-shaped openings and spray holes, from which liquid is sprayed at multiple angles, flushing away any solid impurities that may accumulate within the valve body, preventing abnormal wear on the ball crown and the internal coating of the valve body. A liquid level sensor monitors the liquid level in the tank for timely replenishment, ensuring the backflushing effect, extending the valve's service life, and ensuring stable system operation.

The application discloses a signal acquisition positioning system for buried PE pipeline, and relates to the technical field of pipeline detection. The application comprises the following steps: obtaining vibration sound wave signals generated by the excited buried PE pipeline; synchronously collecting vibration response signals of the ground soil through a plurality of acceleration sensors arranged along the pipeline direction; distinguishing normal pipe sections from complex pipe sections through resonance frequency distribution; extracting time delay characteristics among multi-channel signals, combining elliptic geometric constraints to invert the pipeline burial depth; and realizing the visual imaging of the pipeline direction. The application effectively distinguishes complex structures such as T-shaped pipes, elbows, reducers and valves through resonance frequency distribution characteristics, fills the technical blank that traditional methods can only detect straight pipe sections, significantly suppresses local environmental noise, and improves the positioning robustness under complex geological conditions; and through the construction of a pipeline three-dimensional curved surface model through a column coordinate system and a translation coordinate system parameter equation, the intuitive imaging of the pipeline direction, burial depth change and complex structure is realized.

This invention relates to the field of pneumatic logistics pipeline inspection technology, and more particularly to a pipeline inspection device for medical pneumatic logistics pipelines. The device includes a frame with a first side frame, a second side frame, and a third side frame mounted on it. A straight pipe is connected between the first and second side frames. A first and second conveying base are movably connected within the frame. A straight pipe inspection component is mounted on the first conveying base, and an arc pipe inspection component is mounted on the second conveying base. An arc-shaped frame is mounted on the third side frame. This design reduces the possibility of difficulty in internal pipeline inspection after prolonged use of pneumatic material pipelines, lowers the need for extensive manual inspection during the inspection process, improves the efficiency of automated inspection, and enables multi-functional inspection of different pipe types. It also enhances the ease of operation of the device, provides stronger comparative analysis of the inspection process, and offers better intuitiveness.

To provide an anemometer that can measure wind speed with high accuracy without requiring complicated temperature compensation. [Solution] This wind speed sensor measures the wind speed of a gas by detecting temperature changes due to heat transfer changes caused by a heat source, which is positioned downstream of a heat source located inside a straight pipe that flows in one direction. The heat source is placed on the main surface of an insulating main substrate, and the heat source is supported by thermal insulation between it and the main surface of the main substrate. A housing is positioned on the main substrate to cover the heat source and the heat source, forming a pipe with openings at both ends.

The utility model relates to refrigeration equipment technical field more specifically, relate to a heat exchange unit and including its condenser. The utility model discloses the purpose is to reduce the block to water spray, reduce water spray dead zone. Heat exchange unit includes first heat exchange pipe, second heat exchange pipe, a plurality of fixed components, and first heat exchange pipe includes a plurality of first straight pipe section and connects a plurality of first U type pipe section between each first straight pipe section, and second heat exchange pipe includes a plurality of second straight pipe section and connects a plurality of second U type pipe section between each second straight pipe section, and fixed component is arranged in front and back interval along the length direction of first straight pipe section and second straight pipe section, and fixed component includes the first positioning member for fixing first heat exchange pipe and the second positioning member for fixing second heat exchange pipe. Condenser includes frame, gas collection cavity, liquid collection cavity and multiple heat exchange units, and gas collection cavity and liquid collection cavity are located in frame, and heat exchange unit is supported and fixed in the internal space of frame, and each heat exchange unit is parallel and interval arrangement between each other.

The utility model discloses a lightweight automobile air conditioning air duct, including automobile air conditioning air duct, the wall thickness of automobile air conditioning air duct is between 0.2 0.4mm, the inner wall both sides wall of automobile air conditioning air duct all has the first reinforcing strip of welding, the common welding of relative two first reinforcing strip has reinforcing rod, the automobile air conditioning air duct includes long straight pipe department, and the last end of long straight pipe department has the first elbow pipe department integrally, the last end of first elbow pipe department has the bridging pipe department integrally, relate to a kind of lightweight automobile air conditioning air duct technical field, by the wall thickness of air conditioning air duct is set below 0.4mm, so that air conditioning air duct lightweight, and utilize the first reinforcing strip and reinforcing rod to realize the reinforcement to air duct, make up the problem of wall thickness thinner, guarantee the strength of air duct, by setting first sound-absorbing cotton, second sound-absorbing cotton, third sound-absorbing cotton and fourth sound-absorbing cotton in air conditioning air duct, effectively reduce the wind noise in air duct.