47results about How to "Realize fully automatic control" patented technology

The utility model discloses a full-automatic steel-plastic belt bundling unit for metal ingot stacking, and belongs to the technical field of metal material packaging. The bundling unit comprises a main body frame, a machine head assembly, a tape threading guide groove mechanism, a base, a tape reel mechanism and a tape threading guide groove. The main body frame comprises a floor frame, a cantilever frame and a machine head lifting air cylinder. The machine head assembly comprises a machine head installation frame and a machine head, and the machine head is installed in the machine head installation frame and connected with the lifting air cylinder. And the threading guide groove mechanism is provided with a telescopic guide groove which can face one side of the cantilever frame. The base is mounted at the bottoms of the floor frame and the threading guide groove mechanism, and the coiling mechanism is fixedly mounted in the middle of the floor frame. The belt penetrating guide groove is fixed to the inner side of a cantilever of the cantilever frame and the outer side of the floor frame. And a steel belt sealing guide groove is defined by the belt penetrating guide groove, the machine head assembly and the telescopic guide groove. The bundling unit is reasonable in design, compact in structure, capable of achieving full-automatic control, stable in operation, safe, reliable, low in failure rate and beneficial to improving the bundling work efficiency.

The invention discloses a tight-lock coupler intelligent tensile testing machine and a testing method thereof, and belongs to the technical field of tight-lock coupler test.The tight-lock coupler intelligent tensile testing machine comprises a mounting bottom plate and an electric control cabinet, and a support for supporting a tight-lock coupler to be detected is mounted on the surface of the mounting bottom plate; a tensile connecting frame for connecting the tight-lock coupler is mounted on the surface of the bottom plate on one side of the support, an integrated design of'tensile force detection and visual detection 'is innovatively adopted, mechanical parameter acquisition and visual deformation observation are combined, traditional mechanical data such as tensile force and displacement are obtained, and visual characteristics such as fine deformation and crack initiation are captured; precise synchronization of pulling force application, displacement collection and camera shooting is achieved through the synchronous controller, the real-time corresponding relation of pulling force-displacement-visual deformation is established, the problems that an existing device is single in detection dimension and poor in data relevance are solved, and the potential quality hazard checking capacity and the persuasion of a detection result are improved.

This utility model belongs to the field of storage device technology, specifically relating to a device and system for collecting leaked ethylene glycol aqueous solution. It includes a collection tank body, a water inlet, a solenoid valve, a vent, a level gauge, a signal terminal, a drain outlet, a detection port, a controller, and a collection tank base. The water inlet is located on the top left side of the collection tank body via a straight pipe, the signal terminal is installed on the top right side of the collection tank body, and the drain outlet is located at the bottom of the collection tank body via a straight pipe. This utility model, through the coordinated design of the collection tank body, solenoid valve, level gauge, and controller, achieves automatic collection and alarm control of leaked ethylene glycol aqueous solution. When the liquid level reaches the alarm threshold, the controller automatically closes the solenoid valve at the water inlet and sends a signal to prevent the leaked liquid from continuing to spread. Simultaneously, manual collection is achieved through the drain outlet, effectively preventing the slightly toxic ethylene glycol aqueous solution from harming people and the environment, and significantly improving the safety of indoor ski resort air conditioning systems.

This invention discloses a hot-melt welding device for large-diameter water supply pipes, the core of which consists of an assembly base, a positioning fixture, a pressurizing component, and a hot-melt component. The positioning fixture is equipped with a sliding base and longitudinal and transverse positioning components, ensuring precise connection of the water supply pipes. The pressurizing component, through a lifting base, a pressurizing unit, and an opening and closing adjustment component, achieves uniform pressure on the welding area, optimizing the welding process. The hot-melt component is responsible for heating the interface, ensuring welding quality. This design significantly improves welding efficiency and connection accuracy. This invention effectively solves the problems of low welding efficiency, poor connection accuracy, and difficulty in guaranteeing welding quality in existing technologies, providing an efficient, precise, and stable technical solution for welding large-diameter water supply pipes.

The invention relates to a multi-machine interconnected automatic punching production line which comprises a conveying mechanism and a plurality of punching machine tools sequentially arranged in the conveying direction of the conveying mechanism, and a linear carrying mechanism is arranged between the punching machine tools and the conveying mechanism. The linear carrying mechanism comprises a base and driving seats, the base and the punching machine tool are arranged in a spaced mode, the driving seats are movably arranged on the base, a material taking mechanism is installed between every two adjacent driving seats, and the material taking mechanisms are used for carrying workpieces between the conveying mechanism and the punching machine tool. The technical problems that when an existing stamping production line adopts a rotary mechanical arm to carry workpieces, the workpieces are prone to being affected by inertia and deviate and slide down, and the occupied space of equipment is large are solved.

The invention discloses an aeration control method and system for sewage treatment, the method comprising the following steps: deriving historical data; calculating the aeration volume under standard conditions at historical moments corresponding to the historical data based on an air volume frequency conversion formula; constructing a standard fuzzy gas-water ratio feature; constructing a prediction model based on the historical data and taking the gas-water ratio as a prediction value; collecting real-time data; inputting the real-time data into the prediction model to predict the fuzzy gas-water ratio GWR at the next moment required to reach a target DO value; calculating the blower frequency f by combining the predicted fuzzy gas-water ratio GWR with a water flow rate w; adjusting the blower frequency in real time according to the calculated blower frequency f; the invention can realize real-time automatic prediction and control of the blower air volume in the absence of an air flow meter, thus avoiding the cost accumulation caused by the expensive air flow meter, and realizing full-automatic algorithm control at the same time, significantly reducing labor costs, and having stable operation and accurate control.

The application relates to a pulling belt device and a packaging equipment, wherein the pulling belt device comprises a feeding module and a clamping module, the feeding module comprises a feeding turntable and a plurality of rollers, the feeding turntable is used for cooperating with the plurality of rollers to provide a belt to the clamping module, and at least one of the plurality of rollers is configured to be movable to pull back the belt, and the clamping module is used for clamping the belt and moving in a first direction to pull the belt. The pulling belt device and the packaging equipment can improve the flattening quality of the protective film pull ear and improve the packaging rhythm and product yield.

The utility model belongs to control system technical field, specifically disclose a kind of packing car automation transfer control system, including transfer control module, and transfer control module is connected with AGV control module, WES system, line PLC;Online waiting position and offline waiting position are all included trolley mechanism and guide rail, and trolley mechanism is connected with transfer control module;Guide rail is used to guide the conveying path of packing car;Trolley mechanism is used to push the packing car in online waiting position to transfer waiting position and is used to push the packing car in offline waiting position to transfer waiting position. Through the effective interaction with AGV control module, WES system, line PLC, make the collaborative work between each equipment, according to the real-time state dynamic adjustment operation strategy of production line, avoid material jam and not timely supply and other problems, guarantee the smooth of production process.

A continuous oxidation reaction process of o-xylene chloride includes batching, continuous oxidation, tail gas condensation, flash distillation, acetic acid recovery, tail gas treatment and crude anhydride treatment steps. A bubbling reaction tower with a dehydration section and other matching equipment are used as a continuous o-xylene chloride liquid-phase air reaction device. The device, combined with the oxidation process of the invention, can continuously discharge the water generated during the reaction from the reaction system, greatly reduce the inhibitory effect of water on the reaction, and improve the product yield; at the same time, the device adopts a continuous feeding and discharging production mode to greatly improve the utilization efficiency of the reaction device, and avoid the frequent pressure increase and reduction, temperature increase and decrease of the reaction equipment caused by the intermittent process, which causes equipment fatigue damage.

The utility model belongs to the technical field of petrochemical engineering liquefied hydrocarbon loading safety and environmental protection, and particularly relates to a liquefied hydrocarbon loading arm airtightness detection and residual liquid recovery system. The system comprises a control system, a loading control assembly, a loading and unloading control assembly, an upper computer, a risk early warning system, an anti-explosion control box, a nitrogen filling assembly, a torch system and a crane pipe. The loading arm is provided with a root valve and a loading arm stop valve, the loading arm is connected with the under-pressure anti-explosion metal hose through a steel ball locking quick joint, the under-pressure anti-explosion metal hose is divided into two branches in the anti-explosion control box, one branch is that the under-pressure anti-explosion metal hose is connected with a torch system gas holder, and the other branch is connected with a nitrogen filling assembly. And automatic control can be carried out through a control system. The system provided by the utility model realizes the full-automatic detection of the gas tightness of the crane pipe during loading, loading and unloading of liquefied hydrocarbon, ensures the safety, reduces the workload of operators, recovers the residual liquid of the crane pipe, meets the environmental protection requirement, ensures the safety, and can check the detection data.

The utility model relates to door and window technical field, and disclose a kind of openable door and window based on gas leakage detection, comprising: window body, it has the state of sliding opening and sliding closing;Window body includes: window frame;Fixed interior window;Interior sliding window;Interior sliding window can slide up and down in window frame, and when sliding, window body can be opened or closed;Gas detection module;Control module, it is electrically connected with gas detection module;Drive execution component, it is provided with two groups, one end of two groups of drive execution component is connected with interior sliding window, two groups of drive execution component are connected in series, and after series connection, it is electrically connected with control module;Ventilation auxiliary module, it is electrically connected with control module.In the utility model, indoor gas concentration is detected in real time by gas detection module, once exceeds preset threshold value, control module can quickly generate instruction, drive relevant component work, realize the quick response to gas leakage.

The invention discloses a continuous bowl wiping machine which comprises a mounting frame, a control assembly, a belt type conveying mechanism, a rotating disc mechanism, a cleaning mechanism, a telescopic mechanism and a rotating mechanism. The belt type conveying mechanism, the rotating disc mechanism, the cleaning mechanism, the telescopic mechanism and the rotating mechanism are electrically connected with the control assembly. A mounting plate is arranged in the middle of the mounting frame, a telescopic mechanism is mounted at the top, and a rotating mechanism is mounted at the tail end of the telescopic mechanism; a mounting seat is arranged in the middle of the mounting plate, a supporting plate is arranged at the top of the mounting seat, a turntable mechanism and a cleaning mechanism are mounted on the two opposite sides of the supporting plate respectively, and the turntable mechanism is rotationally mounted on the side edge of the supporting plate and matched with the supporting plate; and the belt conveying mechanism is arranged beside the mounting frame, and the belt conveying mechanism is further matched with the supporting plate. The belt type conveying mechanism is matched with the rotating disc mechanism, so that automatic conveying and positioning of bowls are achieved, and the automation level of the cleaning process is improved; the telescopic mechanism, the rotating mechanism and the cleaning mechanism are used in cooperation, it is guaranteed that the outer walls of the bowls are thoroughly cleaned, and the appearance quality and the hygienic standard of products are guaranteed.

The utility model provides a circular-truncated-cone-shaped piston electric switch type active ventilation opening, and belongs to the technical field of ventilation opening equipment. The in-wall ventilation pipeline is in a big-end-down circular truncated cone shape and is made of a polypropylene plastic plate or glass fiber reinforced plastic; the fan communicates with the outer side of the ventilation pipeline in the wall body and is located outdoors; the piston is in a big-end-down circular truncated cone shape matched with the ventilation pipeline in the wall body, is located indoors and is used for improving the sealing performance between the piston and the ventilation pipeline in the wall body; and the driving device is used for driving the piston to axially move along the ventilation pipeline in the wall body. The fan is arranged outside, the piston is arranged indoors, the piston moves from bottom to top to achieve extrusion type sealing, the ventilation pipeline in the wall is made of polypropylene plastic plates or glass fiber reinforced plastics, the service life of the fan can be prolonged, the piston is prevented from being quickly frozen under the conditions of cold and high humidity, heat conduction is reduced, and the service life of the fan is prolonged. And the adhesion phenomenon of the piston and the iron ventilation pipe wall during pre-cooling and wetting is prevented.

The utility model discloses a hydrogen peroxide production line combined vacuum-pumping system, which is characterized in that a vacuum-pumping main pipe outlet is connected with an extraction opening of a roots vacuum pump, an exhaust opening of the roots vacuum pump is connected with an extraction opening of a liquid ring vacuum pump in series, and an exhaust opening of the liquid ring vacuum pump is connected with a gas inlet at the top of the left side of a gas-liquid separation tank; a right top exhaust port of the gas-liquid separation tank is connected with a tail gas collection device; a vertical middle partition plate is arranged in an inner cavity of the gas-liquid separation tank and divides a tank body into a left cavity and a right cavity, and an overflow channel is reserved between the middle partition plate and the tank top. A pure water replenishing pipe is connected to the left cavity of the gas-liquid separation tank through a pure water replenishing valve; a water outlet in the lower part of the left cavity of the gas-liquid separation tank is connected with a hot side inlet of a cooler through a filter; a hot side outlet of the cooler is connected with a working liquid inlet of a liquid ring vacuum pump; and a water outlet at the bottom of the right cavity of the gas-liquid separation tank is connected with a wastewater discharge pipe through a wastewater discharge valve. According to the system, the vacuum degree and the air exhaust efficiency can be improved, automatic adjustment of the vacuum degree and automatic separation and discharge of waste liquid are achieved, and meanwhile energy consumption is reduced.

The invention discloses a green preparation process of capryloyl hydroxamic acid, and relates to the technical field of fine chemical synthesis. The environment-friendly preparation process of the capryloyl hydroxamic acid at least comprises the following preparation steps: mixing and stirring hydroxylamine sulfate, sodium hydroxide and ethanol, dropwise adding ethyl caprylate, and carrying out oximation reaction to obtain a reaction mixed system; reducing the temperature of the reaction mixed system, dropwise adding concentrated sulfuric acid to adjust the pH value to 6-7, and performing solid-liquid separation to obtain sodium sulfate and capryloyl hydroximic acid mother liquor; and carrying out rotary evaporation on the capryloyl hydroxamic acid mother liquor to recover the ethanol, and carrying out fractional crystallization to obtain the capryloyl hydroxamic acid. The green preparation process of capryloyl hydroxamic acid provided by the invention has the advantages of high raw material utilization rate, strong solvent recycling reusability, high product molar yield, high purity, good chroma, light smell, good corrosion resistance, continuous production, no three wastes in the process, low temperature and normal pressure, safety, green and energy saving, and accords with the green chemical engineering concept of carbon neutralization.

The application discloses a photoelectric encoder code disc non-uniform error detection device, which comprises a machine body, a rotating table, a driving assembly, a abutting assembly and a linkage execution assembly, the top of the machine body is provided with an industrial camera for collecting code disc images, the driving assembly is arranged in the inner side of the rotating table and is in transmission connection with an external motor, the abutting assembly is in linkage with the driving assembly and is radially telescopic along the rotating table, the linkage execution assembly is movably arranged in the rotating table and is matched with the abutting assembly and the driving assembly, in the application, the code disc is placed on the rotating table, and the locking and constraint of the code disc and the rotation driving of the rotating table are sequentially executed by the same driving output end, so that the full-automatic control of reliable positioning of the code disc before image collection and accurate indexing of the code disc at a preset angle during the collection process is realized, and the time-sharing driving mode not only saves the tedious operation of manually adjusting the angle of the code disc or re-clamping the code disc, but also eliminates the positioning deviation and repetitive error caused by manual intervention.

The utility model relates to the field of automobile production and conveying, in particular to a novel skid positioner, which comprises a gear box, a driving clamping arm assembly and a driven clamping arm assembly, the gear box is mounted on a base, ground feet are mounted at four corners of the base, and the driving clamping arm assembly and the driven clamping arm assembly are mounted on the base. The driving clamping arm assembly and the driven clamping arm assembly are both installed in the gear box, the driving clamping arm assembly comprises a driving gear, the driven clamping arm assembly comprises a driven gear, the driving gear is meshed with the driven gear, and the driven gear is meshed with the driving gear. A driving device used for driving the driving gear is arranged on the front portion of the gear box, a detection device is arranged on the rear portion of the gear box, and the problem that at the present stage, due to the fact that the weights of different vehicle types are different, the stopping position of the skid possibly changes, and therefore accurate positioning of the skid cannot be achieved is solved.

The present application provides a kind of glue board stacking manipulator unloading controller structure, including manipulator body and manipulator unloading controller;Wherein unloading controller is arrayed and installed with the two sides of manipulator body, and manipulator unloading controller includes finger control board, finger controller guide slot, finger control board guide slot, hook-shaped clip, rotating finger, clip seat;Wherein control board is installed with tension spring, so that it has the tendency of downward movement, and hook-shaped clip is installed with torsion spring, so that it has the tendency of approaching finger control board;In the finger control board guide slot, finger controller guide slot is provided;Wherein the side wall of finger control board guide slot is fixed by clip seat, and hook-shaped clamping jaw is rotatably arranged on clip seat;The short arm portion of rotating finger is fixed on the side wall of the lower part of control board of finger control board.The whole mechanical structure is low in cost, low in failure rate, long in service life, realizes the full-automatic control of glue stacking.

A kind of constant-power superhigh pressure supercharging system and superhigh pressure processing equipment, including low-pressure drive mechanism, superhigh pressure supercharging mechanism and host computer control mechanism, the low-pressure drive mechanism is driven variable pump (2) by motor (1), variable pump (2) import connects oil tank (19), variable pump (2) export is connected with electro-hydraulic reversing valve (6) import by low-pressure check valve (3), electro-hydraulic reversing valve (6) export connects oil tank (19), and the two working ports of electro-hydraulic reversing valve (6) are connected with the two oil ports of the big piston cavity of supercharging cylinder (7) respectively;The superhigh pressure supercharging mechanism is connected with low-pressure drive mechanism by supercharging cylinder (7), and the small plunger cavity of the left side of supercharging cylinder (7) is connected with first water inlet valve (8.1) and first drain valve (9.1), the small plunger cavity of the right side of supercharging cylinder (7) is connected with second water inlet valve (8.2) and second drain valve (9.2), and the outlet of first drain valve (9.1) and second drain valve (9.2) is communicated and is communicated with processing bin (11) by high-pressure check valve (10);Low-pressure pressure sensor (15), first high-pressure pressure sensor (16), second high-pressure pressure sensor (17), displacement sensor (18) output signal to the input end of host computer control mechanism (20).

The present invention relates to the field of injection medical devices, and discloses an automatic drug injection device, including a bandage, an injection mechanism and a support mechanism, wherein the injection mechanism includes a syringe and a driving member, the syringe is connected to the bandage, a piston is provided inside the syringe, a needle is provided at the bottom of the piston, the driving member is connected to the piston, a through hole is provided at the bottom of the syringe, and a sealing layer is provided in the through hole; the support mechanism includes a plurality of support rods, and the plurality of support rods are evenly connected to the outer periphery of the syringe. The device can automatically inject sedatives to patients with epileptic seizures, thereby solving the problem that epileptic seizures cannot be treated in time.

The present invention discloses an automated dry-wet freeze-thaw cycle test device, including an operating table, a control module, an evaporation module, a spray module, a weighing module, a refrigeration module, and a manipulator operation module; the spray module controls a peristaltic pump through a pulse sent by the control module to complete the control of the amount of water added; the weighing module detects the quality through a pressure sensor to complete the control of the quality and the collection of data; the refrigeration module adopts a refrigeration box; the manipulator operation module controls a stepping motor through the control module to achieve walking at any position in a two-dimensional space. The present invention also discloses an automated dry-wet freeze-thaw cycle test method. The test sends a signal to the control module according to the input parameter instruction, and the modules cooperate to complete the entire process of the dry-wet freeze-thaw cycle test. The invention device and invention method provided by the present invention are professionally used for loess dry-wet freeze-thaw cycle test, realize the full automatic control of the test, improve the test accuracy, reduce the personnel input, and reduce the production cost.

This invention provides a method for preparing macaron shells using precise temperature and humidity control during drying, relating to the field of macaron shell preparation technology. This method includes the following specific steps: S1, preparing the batter: Selecting raw materials, including specialty flour, almond flour, powdered sugar, egg white, granulated sugar, and water. The specialty flour, almond flour, and powdered sugar are sieved and stirred twice. The first addition includes the sieved specialty flour, powdered sugar, and half of the egg white; the second addition includes the remaining half of the egg white, granulated sugar, and water, resulting in the batter. By establishing a quantitative relationship model between the total drying time and the initial ambient temperature and relative humidity, and dynamically adjusting the total drying time according to actual environmental conditions, the drying process can adapt to environmental differences in different regions and seasons, eliminating reliance on operator experience and significantly improving the batch stability and environmental adaptability of macaron shell preparation.

The invention relates to the technical field of building material manufacturing, and discloses a building waste regenerated brick manufacturing device which comprises a processing box, a crushing part is installed on the processing box and used for automatically crushing building waste, a manufacturing part is arranged on the processing box, the crushed building waste can directly enter a smashing part through a material control part, and the manufacturing part is arranged on the processing box. Continuous automatic operation is achieved, the operation process is simplified, the whole regenerated brick manufacturing process is more convenient and efficient, transportation and manpower burden is reduced through process integration, the multiple processes of crushing, weighing, material controlling, smashing, mixing and the like are integrated in one device, the construction waste is mixed and pulped from feeding to final mixing, and the production efficiency is greatly improved. Multiple times of transportation among different machines are not needed, the processing flow is greatly shortened, the production efficiency is improved, the frequency of manual supervision and material transportation is reduced, the labor cost and the labor intensity are reduced, and meanwhile material loss and pollution possibly caused by multiple times of transportation are avoided.

The application discloses a roller shutter type filter and a use method, and relates to the technical field of air filtration. The filter comprises a rack, upper and lower winding boxes, upper and lower winding shafts, two driving modules, a flexible belt wound around the upper winding shaft and a filter core clamp head. The lower winding shaft is detachably arranged in the lower winding box. An electromagnetic clutch is arranged between each driving module and the corresponding winding shaft. When new material is added, the filter core clamp head clamps a filter core material head, and the upper winding shaft winds the flexible belt to pull the filter material upward to form a roll. When the material is replaced, the lower winding shaft actively winds, and the upper winding shaft follows to unwind. When the clutch is separated, the rigid connection between the driven end and the driving module is cut off, the unwinding resistance is greatly reduced, and the filter material is prevented from being deformed due to excessive tension. When the clutch is attracted, the inertia of the unwinding end is inhibited by using the structural resistance of the driving module, and the filter material is prevented from being excessively released to cause relaxation. The application concentrates all the material replacement operations at a low place, eliminates the climbing operation, avoids secondary dust pollution, and realizes stable and reliable material replacement.

The application provides a soil dry-wet cycle device with hydrodynamic pressure regulation function and a test method, wherein the soil dry-wet cycle device comprises a test table, a support, a water pump, a water storage tank and an automatic dry-wet cycle mechanism, the automatic dry-wet cycle mechanism comprises a sealing top cover, a dry-wet cycle chamber, a dryer, a soil sample mounting unit and a controller, the soil sample mounting unit comprises a fixing structure, a microporous diaphragm bottom plate, a soil ring knife positioning sleeve frame and a microporous diaphragm top plate, the microporous diaphragm top plate and the microporous diaphragm bottom plate both have water-permeable and air-permeable structures, a first electromagnetic valve is installed on a water inlet pipe, a second electromagnetic valve is installed on a lower drain pipe, dryers are fixedly arranged at air inlets, and the controller is connected with the water pump, the dryers, the first electromagnetic valve and the second electromagnetic valve; and the application further provides a test method. The application can realize automatic quantitative research on the influence of dry-wet cycles on soil characteristics under different conditions in large quantities, and can also research the influence of different ions on soil characteristics in dry-wet cycles.

The utility model relates to the technical field of surface engineering, and discloses an ion nitriding vacuum composite treatment device which comprises an outer cover and a base, the bottom surface of the outer cover is connected with the top surface of the base, a plurality of electric heating plates are arranged on the outer cover along the inner wall, and the top of the outer cover is communicated with a gas inlet pipeline through a gas inlet. The gas inlet pipeline is connected with a nitriding gas pipe and a quenching gas pipe, a cooler is arranged below the quenching gas pipe and communicated with the lower portion of the outer cover through a quenching gas outlet, a quenching gas circulating pipe valve is arranged between the cooler and the quenching gas outlet, and a circulating fan is arranged between the quenching gas pipe and the cooler. The end, away from the cooler, of the air inlet pipeline is connected with the vacuum pump set. Through the cooperation of the air inlet pipeline, the vacuum pump set and the electric heating plate, the ion nitriding, vacuum quenching and vacuum tempering processes can be completed step by step in the same device, the operation is simple, a high-quality infiltrated layer can be obtained in a short time, the surface of a metal part can be efficiently strengthened, meanwhile, the equipment is simplified, and the cost is reduced.

The invention relates to the technical field of thermosyphon pumps, in particular to a thermosyphon pump suitable for double-end mechanical sealing of a butadiene centrifugal pump, which comprises a pump body, an input pipe is fixedly arranged on one side of the pump body, an output pipe is fixedly arranged at the other end of the pump body, and an isolation cover is fixedly connected to the outer wall of the output pipe. The spiral preheating pipe is arranged on the outer side of the output pipe of the thermosyphon pump, the high-temperature fluid is used for preheating the low-temperature fluid, the high-temperature fluid is used for preheating the low-temperature fluid, the high-temperature fluid is used for preheating the low-temperature fluid, and the low-temperature fluid is used for preheating the low-temperature fluid. Waste heat can be effectively recycled, energy efficiency is improved, energy loss is reduced, the heat treatment process of the system is optimized, the heating efficiency of the thermosyphon pump can be improved, the service life of equipment is prolonged, energy conservation and emission reduction can be facilitated, and finally more efficient and more environment-friendly system operation is achieved. The pump is safer, more efficient and more stable in the conveying process of fluid which is high in temperature, easy to polymerize and easy to leak.

This application relates to the field of mechanical testing technology, and proposes a shield tail sealing test device for a tunnel boring machine (TBM). The device includes a transparent test chamber, a hydraulic loading device, a gas delivery device, and a water supply device. The transparent test chamber contains a tail brush assembly, which divides the chamber into a hydraulic pressure chamber and multiple grease chambers. The hydraulic loading device includes a first hydraulic loading pipe, a first hydraulic piston and a first water circuit reversing valve disposed within the first hydraulic loading pipe, a second hydraulic loading pipe, and a second hydraulic piston and a second water circuit reversing valve disposed within the second hydraulic loading pipe. The first hydraulic loading pipe is connected to the hydraulic pressure chamber via the first water circuit reversing valve, and the second hydraulic loading pipe is also connected to the hydraulic pressure chamber via the second water circuit reversing valve. The gas delivery device is connected to both the first and second hydraulic loading pipes. The water supply device is connected to both the first and second water circuit reversing valves. This application has the effect of stabilizing the pressure of the test water.

The utility model discloses a heat recovery type expansion water tank heat exchange unit, which belongs to the field of heating equipment, is used for supplying heat and comprises a heat exchanger, a steam inlet of the heat exchanger is communicated with an external steam pipeline through a steam valve assembly, and a hot water outlet of the heat exchanger is communicated with a heating user pipe network through a hot water pipeline. A water return pipeline of the heating user pipe network communicates with the expansion water tank, and the expansion water tank communicates with a water return opening of the heat exchanger through the circulation valve assembly and the circulation pipeline. Condensate water of the heat exchanger is communicated with an expansion water tank through a condensate water valve assembly and a condensate water pipeline, and the expansion water tank is further communicated with a water supplementing pipe and on-site sewage storage equipment. High-temperature hot water can be recycled, the heat loss and the steam use amount can be greatly reduced, the pressure in the pipeline is kept constant, the heat exchange efficiency is effectively improved, the stability of the production quality is guaranteed, and the operation cost is reduced.

This invention discloses a spring impact fatigue testing device, comprising a base mechanism, a height adjustment mechanism, and an impact mechanism. The base mechanism includes a base plate, an adjusting seat plate, and a fixed mounting base, the adjusting seat plate and the fixed mounting base being horizontally adjustable along a relatively vertical path. The height adjustment mechanism includes a lifting bracket, a support base, and a lifting slide, the support base being fixedly connected to the base plate. The impact mechanism includes a swing arm, a swing arm connecting seat, a swing mounting base, and a mounting frame, the swing arm connecting seat being fixed to the side of the lifting slide, the swing arm being pivotally connected to the swing arm connecting seat, the mounting frame being slidably and lockably mounted on the swing arm, the swing mounting base being located on the lower side of the mounting frame, and the upper end face of the fixed mounting base and the lower end face of the swing mounting base respectively having a retaining structure adapted to the shape of the spring end. The height adjustment mechanism is equipped with a lifting control component for adjusting the height of the lifting slide. The impact mechanism is equipped with a drive control component for driving the mounting frame to perform up and down impact actions.