60results about How to "Solve replacement" patented technology

The invention belongs to the technical field of dynamic angle measurement, and relates to a dynamic angle measurement device which comprises an integrated base, a rotary table, an annular laser gyroscope angle measurement unit, an adjustment fixture, a dynamic angle null unit and a control processing unit. The integrated base is arranged on the vibration isolation platform, a rotating part of the rotary table is connected with an annular laser gyroscope angle measurement unit arranged above the rotating part, the dynamic angle null unit comprises a sensitive module, and a target mirror of the sensitive module is arranged on the annular laser gyroscope angle measurement unit; the dynamic angle null unit further comprises a double-frequency laser-optical fiber coupling module and a measuring module, and a laser beam emitted by the double-frequency laser-optical fiber coupling module is emitted to the target mirror after passing through the measuring module; when the light emitted by the measuring module coincides with the direction of the reflected light passing through the target mirror, the dynamic angle null pointing unit emits null pointing pulses to the control processing unit, and the control processing unit starts to record the dynamic angle measured by the annular laser gyroscope angle measuring unit.

The utility model relates to the technical field of fire-fighting equipment, and provides a fire-fighting smoke exhaust device which comprises a flue, a smoke exhaust fan arranged at one end of the flue and a filter unit arranged at the other end of the flue, the filter unit comprises an outer frame, and two filter screen plates arranged up and down are arranged in the outer frame; limiting on the two filter screen plates is relieved through the second driving mechanism, then the first driving mechanism drives the outer frame to rotate, the using positions of the two filter screen plates are adjusted up and down, then positioning is conducted through the second driving mechanism, and the filter screen plates with more dust attached to the surfaces are changed from the lower portion to the upper portion. The filter screen plate with less dust attached to the surface is replaced from the upper part to the lower part, so that the service life of the filter screen plate is prolonged, the replacement period is prolonged, and the problem that the whole filter screen needs to be replaced or cleaned in the prior art is solved.

The present application provides a stern structure and a ship, comprising a stern shaft, a water inlet, a first sealing part, a drain and a control part. The water inlet is arranged at one end of the cabin of the stern, and seawater flows in through the water inlet. The first sealing part is arranged at the water inlet, connected between the stern shaft and the hull structure, and the opening and closing of the water inlet is controlled by controlling the opening and closing of the first sealing part. The drain is arranged at the bottom of the other end of the cabin of the stern, and a water pump is arranged at the drain, and the water pump is used to discharge the seawater in the cabin. The control part is respectively connected to the first sealing part and the water pump for communication, and the control part controls the opening and closing of the water inlet and the water pump. The present application effectively solves the problem that the bearings in the stern cabin are difficult to inspect and replace when the ship is sailing, and can provide support and lubrication for the stern shaft, and can facilitate the inspection and maintenance of the stern cabin. The stern structure of the present invention is simple, the bearing is easy to install and use, the use process is safe and reliable, the equipment installation efficiency is improved, the on-site construction risk is effectively reduced, and it is conducive to popularization and use.

The utility model relates to the technical field of automobiles, and discloses a light-weight automobile bearing type automobile body and an automobile body cover piece, the light-weight automobile bearing type automobile body comprises an automobile body and an automobile body top cover body, the automobile body top cover body is installed at the top of the automobile body, and ejector rods are fixedly installed on the front side and the rear side of the upper end face of the automobile body top cover body respectively. A sleeve rod is movably installed between the ejector rods on the front side and the rear side, the inner wall of the sleeve rod is sleeved with a threaded rod in a threaded mode, and a rotating disc is fixedly installed at the rear end of the threaded rod. According to the automobile body top cover, the automobile body top cover body, the ejector rods, the threaded rod and the round rod are matched, the threaded rod and the sleeve rod are connected in a threaded and sleeved mode, and meanwhile the transverse pipe and the round rod are movably connected in a sleeved mode, so that the installation position of the luggage rack can be adjusted according to the distance between the ejector rods on the automobile body top cover body; and the applicable range of the luggage rack is expanded, so that the mounting flexibility of the luggage rack on the car body top cover body is improved.

The utility model relates to the technical field of milling heads for screw numerical control machine tools, and discloses a rotatable milling head for a screw numerical control machine tool, which comprises a machine tool, a connecting block and a U-shaped limit frame, the adjusting mechanism comprises an L-shaped plate, a servo motor, a rotating rod, a screw rod, a first belt wheel, a transmission belt, a second belt wheel, a connecting rod, a first gear and a second gear, and the front face of the L-shaped plate is fixedly connected with the back face of the connecting block. According to the rotatable milling head for the screw numerical control machine tool, through the use of a connecting block, an L-shaped plate, a servo motor, a rotating rod and a screw, the front-back position of a threaded moving block can be adjusted, the effect of synchronously adjusting the front-back position of a milling head body is achieved, and then the problem how to machine different positions according to the reality is solved; and the effect of adjusting the milling head body in multiple aspects can be achieved, and the effect that the milling head is more widely used in practice is achieved.

The utility model discloses a charging system fault detection device, which relates to the technical field of charging fault detection and comprises a box body, a control panel is arranged on the inner top surface of the box body, a fixing plate is arranged at the upper end of one side of the control panel, a mounting plate is arranged on the top surface of the fixing plate, and a plurality of fixing bolts are arranged between the mounting plate and the fixing plate in a penetrating manner. A nut of the fixing bolt is provided with anti-skid lines and is in a round button shape, an inserting ring is arranged in the middle of the top face of the mounting plate, a cover plate is hinged to one side of the inserting ring, a buckle protruding block is hinged to the other side of the inserting ring, and a clamping groove corresponding to the buckle protruding block is formed in the cover plate; according to the utility model, through the elastic clamping cooperation of the plugging ring and the C-shaped frame, the modularized replacement and multi-standard adaptation of the plugging gun interface are facilitated, the compatibility of the detection equipment and the maintenance convenience of the plugging port are improved, and the problem that the whole body needs to be replaced after the plugging port of the traditional detection device is replaced is solved; and the stability and efficiency of fault detection of the charging system are obviously improved.

The utility model relates to the technical field of label printers, in particular to a labeling machine which comprises a shell, a labeling machine body and a winding mechanism, the winding mechanism is arranged on one side of the shell, and the winding mechanism comprises two fixing plates, a threaded rod, a motor, a winding roller, two fixing columns, two sliding rods, a limiting rod and two first nuts. The two fixing plates are in bolted connection with the shell, the threaded rod is rotationally connected with the two fixing plates, the motor is fixedly connected with the fixing plates, the output end of the motor is fixedly connected with the threaded rod, the winding roller is arranged on the surface of the threaded rod in a sleeving mode, the two fixing columns are fixedly connected with the corresponding fixing plates, and the two sliding rods are fixedly connected with the corresponding fixing columns. Through the arrangement of the structure, the winding roller of the marking machine solves the problems that an existing winding roller of the marking machine is not provided with a stopping mechanism, an operator needs to observe a rotating roller all the time, and the rotating roller is replaced after the rotating roller is full.

The utility model relates to the technical field of ceramic processing, in particular to uniform bottom wiping equipment for an exquisite ceramic glazed green body, which comprises a workbench, a driving mechanism, a cleaning sponge body and a replacing mechanism, the replacing mechanism comprises an electric push rod, a connecting frame, two mounting plates, a plurality of fixing seats and two limiting assemblies, and when the cleaning sponge body needs to be replaced, the cleaning sponge body can be replaced. After limiting of the two mounting plates is relieved through the two limiting assemblies, an electric push rod is started, the electric push rod works to drive a connecting frame to move towards the side away from the workbench, the connecting frame drives the two mounting plates to move towards the side away from the workbench, and after the two mounting plates drive a plurality of fixing seats to move towards the side away from the workbench to a preset position, the fixing seats are driven to move towards the side away from the workbench. And at the moment, the cleaning sponge body can be detached from the workbench to be replaced, so that the problem that when the cleaning sponge is replaced, a worker needs to sequentially unscrew a plurality of bolts for fixing the bearing seat, and then the cleaning sponge is replaced is solved.

The utility model discloses a fast installation oil seal protection structure, which belongs to the motor shaft end waterproof technical field, and comprises an end cover, a bearing and an oil seal are respectively arranged in the end cover, an output shaft penetrates through the bearing and the oil seal, one side of the end cover is provided with an oil seal cover, one end of the output shaft penetrates through the oil seal cover, and the other end of the output shaft penetrates through the oil seal cover. After the oil seal cover is installed, a part of space exists among the oil seal cover, the oil seal and the end cover, lubricating grease is filled in the space, the part of lubricating grease can provide a longer-time lubricating effect for the oil seal, and the lubricating grease has hydrophobicity, so that the lubricating grease can be used for lubricating the oil seal for a longer time. And when the grease is filled in a small gap between the oil seal cover and the output shaft, water can be prevented from entering, so that the problem that the oil seal and the output shaft are continuously rubbed in the operation process of the motor in the prior art, and the damage of the oil seal caused by friction is reduced only by using extremely little lubricating grease at the oil seal is effectively solved.

The utility model discloses a multifunctional wellhead sealing device, which relates to the technical field of wellhead sealing, and comprises a base and a packing cylinder, a polished rod is arranged in the packing cylinder, a rubber cylinder is fixedly connected above the base, the top of the rubber cylinder is fixedly connected with a ball seat, the bottom end of the packing cylinder is fixedly connected in the ball seat, and the bottom end of the packing cylinder is fixedly connected with the inside of the ball seat. A straight packing and a conical packing are arranged above the position between the packing cylinder and the polish rod, the conical packing is arranged at the lower end of the interior of the packing cylinder, the shape of the conical packing is attached to the inner wall of the lower end of the packing cylinder, the interior of the packing cylinder and the outer side of the polish rod are sleeved with nylon tooth sleeves, and a packing pressing cap is arranged between the packing cylinder and the nylon tooth sleeves. And the outer side of the packing cylinder is in threaded connection with a packing lock nut. The novel packing has the advantages that the problem of replacement after a common packing loses efficacy due to abrasion is effectively solved through the design scheme of the internal conical opening, only a new packing needs to be added, an old packing does not need to be taken out, and the novel packing is easy to operate, stable in performance and long in service life.

The invention relates to the technical field of mechanical assembly, in particular to a disassembling and assembling tool for equipment wheels. A hanging ring; the four lifting beams are arranged in the front direction, the rear direction, the left direction and the right direction of the middle connecting plate, and each lifting beam is provided with a round through hole, a nut and a square through hole; each limiting push rod comprises a sleeve, a sleeve head and a rod, a thread is arranged at one end of the rod, a buckle is arranged at the other end of the rod, the end, with the thread, of the rod penetrates through the sleeve to be matched with the sleeve head, and the buckle of the rod is locked with a rim of the wheel; and the four welding push rods are arranged on the four lifting beams and used for separating the tire from the rim. The tool provided by the invention is novel in structure, convenient to use, easy to mount, compact in structure and low in cost, and solves the problem of assembling or replacing the tire clamping ring.

This utility model discloses a dust collector with a self-cleaning filter element function, including a housing. An air inlet is provided at the upper end of the housing. A horizontal plate is fixedly connected inside the housing, and a vertical plate is fixedly connected to the lower end of the horizontal plate. The horizontal and vertical plates divide the internal space of the housing into an air intake chamber, a filter chamber, and an installation chamber. An opening is provided at the rear side of the installation chamber. A suction assembly is installed at the upper end of the horizontal plate, and the air outlet of the suction assembly communicates with the filter chamber. Four filter elements are installed in the filter chamber. Each filter element includes a first circular opening on the vertical plate, a second disc rotatably connected to the first circular opening, and three horizontal bars fixedly connected to the front side of the second disc. This utility model can quickly remove dust from the airflow using four dust collectors, and facilitates the installation and disassembly of the filter element body. Furthermore, the horizontal pipes and transmission assembly can blow off and collect dust from the filter element body.

The utility model relates to the technical field of lubricating oil performance detection, and discloses a performance detection device for lubricating oil production, which comprises a detection box and a receiving box, collecting and processing mechanisms are arranged inside and at the bottom of the receiving box, and each collecting and processing mechanism comprises a hydraulic cylinder, an arc-shaped push plate, a scale collecting pipe and a clamping piece, the front face of the hydraulic cylinder is fixedly connected with the back face of a bearing box. According to the performance detection device for lubricating oil production, an arc-shaped pushing plate can move on an output shaft of a hydraulic cylinder through the power effect of the hydraulic cylinder fixedly installed on the back face of the bearing box, then lubricating oil falling into the bearing box can be pushed into a scale collecting pipe, and the residual amount of the scale collecting pipe is displayed; the device effectively solves the problem of how to collect and treat the detected lubricating oil in a centralized manner, can achieve the effect of rapid collection and treatment, avoids the influence of residual lubricating oil on the detection result, and improves the use efficiency in practice.

The utility model relates to the technical field of pile foundation engineering, in particular to a pile foundation hole forming device which comprises a fixing pipe sleeve, a fixing rod, a plurality of polishing mechanisms and a dismounting assembly, the fixing rod is detachably connected with the fixing pipe sleeve, the polishing mechanisms are detachably connected with the fixing rod, and the dismounting assembly comprises a placing block, two sets of replacement parts, a cutter bar, a screwer and a locking part. The placing block is fixedly connected with the fixing rod and located in the fixing rod, the two sets of replacement parts are symmetrically arranged, the replacement parts are detachably connected with the fixing rod and located on the outer side of the placing block, the cutter rod is fixedly connected with the screwer and located in the fixing pipe sleeve, the screwer is detachably connected with the fixing rod and located on the outer side of the fixing rod, and the locking part is in threaded connection with the fixing pipe sleeve. By adopting the splicing and assembling mode, when parts of the punching device are damaged, the damaged parts can be conveniently and independently replaced, and the use cost of the device is reduced.

The utility model relates to the technical field of light source insect killing, and discloses a suction type solar insect killing lamp which comprises a fixing block, a rotating column is rotationally connected to the interior of the fixing block, a connecting plate is rotationally connected to the outer wall of the rotating column, a first connecting block is rotationally connected to one side of the connecting plate, and a resistance plate is fixedly connected to the side wall of the first connecting block. A supporting column is fixedly connected to the top of the connecting plate, a fixing plate is fixedly connected to the top of the supporting column, a second fixing column is rotationally connected to the inner wall of the fixing plate, and a second connecting block is rotationally connected to the outer wall of the second fixing column. According to the utility model, the resistance plate is blown by wind power to rotate, the resistance plate has a little wind resistance, and then the resistance plate rotates to drive the connecting plate on the inner wall to rotate together, so that two power generation modes are selected, and the problem that the solar panel is singly used for heating and cannot face various severe weathers is solved; and the diversity is improved.

The utility model provides a pulping machine millstone structure, which relates to the technical field of paper pulp grinding, and comprises a support frame, a group of driving mechanisms and two groups of drainage components are arranged above the support frame, the two groups of drainage components are symmetrically distributed, and the driving mechanisms are jointly composed of electric motors and rotating shafts. The drainage assembly is composed of a stable shell, a movable shell and a funnel, and the two sides of the rotating shaft are each provided with a locking nut. A first grinding disc and a second grinding disc which are assembled are arranged to grind fiber paper, the grinding discs are provided with friction strips inclined at different angles, the friction strips can grind paper pulp to be finer, the first grinding disc comprises a positioning disc, a grinding plate and a dispersing block, the second grinding disc comprises a positioning ring, a positioning disc and a grinding plate, the grinding plate is of a fan-shaped structure, and the dispersing block is arranged on the positioning ring. A group of grinding plates are spliced into the grinding disc, so that the effect of independently maintaining the grinding plates is achieved, and the problem that the existing grinding disc is integrally replaced after being abraded is solved.

The invention relates to the technical field of vacuum feeding machines, and discloses a continuous vacuum feeding machine which comprises a machine body assembly, a filter assembly is arranged in the machine body assembly, a cleaning assembly is arranged on the filter assembly, a blowing assembly is arranged on one side of the machine body assembly, and the filter assembly comprises a filter element. A plurality of filter holes are formed in the surface of the filter element, a flow guide pipe is arranged above the filter element, and a gas flow sensor is arranged on the flow guide pipe. In the vacuum feeding process of the machine body assembly, materials and air are separated through the filtering assembly, in order to avoid the situation that normal operation of vacuum feeding is affected due to the fact that the filtering assembly is blocked, the filtering assembly is cleaned in time through cooperation of the cleaning assembly and the blowing assembly, the blocking coping capacity of a filtering element in the using process is improved, and the service life of the filtering element is prolonged. And the working efficiency of the vacuum feeding machine is improved.

The utility model provides plastic mold cooling equipment for producing and processing an automobile steering wheel. The plastic mold cooling equipment for automobile steering wheel production and processing comprises a box body, a lower mold and an upper mold, a heat exchange plate is slidably mounted in the lower mold, a water storage chamber and a heat exchange chamber are arranged in the box body, a heat exchange pipe is fixedly mounted in the heat exchange chamber, a water pumping pipe is fixedly mounted at one end of the heat exchange pipe, and a water outlet pipe is fixedly mounted at the other end of the water pumping pipe. One end of the water pumping pipe extends into the water storage chamber, a water pump is fixedly installed on the inner wall of the heat exchange chamber, a first connecting pipe is fixedly installed at the water inlet end of the water pump, one end of the first connecting pipe is fixedly connected with the heat exchange pipe, and a second connecting pipe is fixedly installed at the water outlet end of the water pump. The plastic mold cooling equipment for production and processing of the automobile steering wheel has the advantages that the mold can be cooled through the heat exchange plate during production of the steering wheel, and the service life of the mold is prolonged by arranging the detachable heat exchange plate.

The present application discloses a control method, device and readable storage medium for a Bluetooth camera, and relates to the field of electronic digital data processing. The method comprises: when the image display terminal receives touch information, determining a target Bluetooth camera and a working scene according to the touch information; determining a Bluetooth channel based on a device identification of the target Bluetooth camera; generating and sending an image acquisition instruction to the target Bluetooth camera based on the Bluetooth channel and the touch information; and when receiving image data of a response of the target Bluetooth camera to the image acquisition instruction, outputting the image data based on an image display framework corresponding to the working scene. Therefore, the method effectively solves the technical problem in the related technology that a camera and a vehicle-mounted display need to be purchased in combination and cables need to be installed, resulting in high equipment replacement and use costs, and achieves the technical effect of obtaining image data of the vehicle's surroundings wirelessly and flexibly configuring the monitoring position.

The invention discloses a deep-water net cage with a net that can be quickly replaced, comprising a net cage frame, a mounting assembly, a net assembly and a reeling device. The net cage frame forms an internal breeding space, and a bottom net is fixedly arranged at the bottom of the net cage frame; a plurality of mounting assemblies are closely arranged on the net cage frame along the outer edge of the internal breeding space; at least two pairs of sliding brackets are arranged on each set of mounting assemblies, and each pair of sliding brackets is slidably connected to the net assembly; at least one reeling device is arranged at a corresponding position of each set of mounting assemblies, and each reeling device is detachably connected to the net assembly in a corresponding set of mounting assemblies to drive the reeling of the net assembly. The invention can reduce the labor intensity of net replacement and net handling, facilitate net replacement and realize large-scale net cages, thereby solving the problem of existing net replacement.

The present invention belongs to the technical field of soil pollution detection, and specifically relates to a soil self-powered sensor device and a heavy metal detection method. The present invention constructs a soil self-powered sensor as a new type of soil microbial fuel cell sensor. It relies on the abundant organic matter and electricity-producing microorganisms in the soil, does not require an external carbon source, and realizes long-term and stable power supply of the soil microbial fuel cell. The present invention fills heavy metal solutions of different concentrations into the soil microbial fuel cell sensor, and the originally stable soil microbial fuel cell voltage rises rapidly to reach a stable peak value. Because the voltage difference before and after the addition of heavy metals has a good correlation with the toxicity of soil pollution, it can be used as a soil pollution early warning indicator, and then through the change of the electricity generation signal caused by water layer pollution, the soil pollution situation can be judged to achieve long-term early warning of soil pollution.

The utility model relates to the technical field of carbon coating scrapers, in particular to a carbon coating equipment scraper replacing device which comprises a scraper upper clamping plate, a scraper lower clamping plate and a rotating abutting piece. The scraper lower clamping plate is movably connected with the scraper upper clamping plate through a limiting piece, and a clamping area for clamping a scraper is defined between the scraper upper clamping plate and the scraper lower clamping plate. The rotary abutting piece is located in a driving area between the scraper upper clamping plate and the scraper lower clamping plate and movably connected with the rotary groove of the scraper lower clamping plate. When the scraper is replaced, only the rotating abutting piece needs to be driven to rotate in the rotating groove, so that the flush portion of the rotating abutting piece is parallel to the position A at the bottom of the scraper upper clamping plate or the protruding portion of the rotating abutting piece abuts against the position of the bottom of the scraper upper clamping plate. And a clamping area for clamping the scraper is limited between the scraper upper clamping plate and the scraper lower clamping plate, so that the scraper is in a loose state or a compressed state, and the replacement of the scraper is completed.

The invention relates to a standing valve with movable blades, which comprises a top cover, the movable blades and N support legs, one end of each support leg is fixed on the edge of the lower surface of the top cover, the other end of each support leg is fixedly connected with a tower tray, N intervals are formed along the edge of the top cover, each interval is provided with one movable blade, and the movable blades are fixed on the top cover. The upper portion of each movable blade is movably connected with the side wall of the top cover, and the left side and the right side of each movable blade abut against the two adjacent supporting legs respectively. The standing valve structure provided by the invention has the characteristics of simple structure and lower manufacturing, mounting and maintaining cost.

The utility model relates to a panel detachable micro ventilation window, and relates to the technical field of building doors and windows, the panel detachable micro ventilation window comprises an outer window frame, an inner window frame and two sets of panels, the outer window frame is connected with the inner window frame, and clamping grooves are formed in the opposite sides of the outer window frame and the inner window frame; the circumferential edge parts of the two groups of panels are respectively clamped in the clamping grooves of the outer window frame and the inner window frame, and detachable clamping pieces are mounted on the outer window frame and the inner window frame and are used for quickly disassembling and assembling the panels. The panel mounting and dismounting device has the effect of improving the convenience of panel mounting and dismounting.

The utility model discloses a kind of packing device for sewing thread production, including bottom plate, packing assembly is arranged on the bottom plate, the packing assembly includes operation table and conveyer belt, the operation table is installed on bottom plate, the conveyer belt is set on operation table, and the operation table is wound with packaging tape, the side of the operation table is equipped with placing rack, the placing rack is equipped with mounting seat, the mounting seat is equipped with fastening assembly, the fastening assembly includes rotating seat and mounting rod, the rotating seat is rotatably connected on mounting seat, the mounting rod is slidably connected on rotating seat and mounting seat, mounting seat is placed with placing rod, to solve the technical problem of low efficiency and inconvenient operation mentioned in the background art in the existing sewing thread production packing device technical field.

The utility model relates to the technical field of wastewater treatment, and discloses an activated carbon desulfurization and denitrification wastewater treatment device which comprises a treatment pond, a cleaning mechanism is arranged on the upper surface of the treatment pond, and the cleaning mechanism comprises a first threaded rod, a first rotating block, a threaded sleeve block and a second threaded rod. And the outer surface of the first threaded rod is in threaded connection with the interior of the treatment tank. According to the activated carbon desulfurization and denitrification wastewater treatment device, by rotating a first rotating block, a first threaded rod fixedly installed on the back face of the first rotating block can be driven to be in threaded connection with the inner wall of the treatment pond, and while the first threaded rod rotates in a threaded mode, the outer surface of the first threaded rod is in threaded connection with a threaded sleeve block; the problem of how to replace the filter plate after long-time use is effectively solved, the effects of convenient stable use and convenient replacement can be achieved, meanwhile, the improvement of the wastewater treatment effect is facilitated, and the efficient use in practice is also facilitated.

The invention relates to the technical field of communication wells, in particular to a multi-state monitoring device for a communication tube well, which comprises a shell, an energy supply assembly, an electrode assembly and a monitoring assembly, the built-in shell comprises a transmission assembly arranged in the built-in shell and a partition plate arranged on the outer side of the transmission assembly, a humidity sensor, a temperature sensor and a CO concentration sensor are integrated through a sensing integration module, so that the humidity, the temperature and the CO concentration of the communication well are detected, all functional modules are separately packaged through a modular plug-in mounting design, and the communication well is convenient to use. Insertion type connection is used, damaged modules can be replaced independently, other undamaged modules are not affected, the wedge-shaped sealing plate is in a closed state in a non-working state or a working water seepage detection state, the sealing performance of the sensing integration module can be improved, meanwhile, the electrode tip can stretch out and draw back in the circular groove, and the micro drainage groove formed in the bottom face communicates with the contact, so that the sealing performance of the sensing integration module is improved. And seepage water is drained by the micro drainage grooves in different mounting modes.

The modular heat exchange device is located in an annular cavity between a discharging pipe shield and a civil engineering structure and comprises a sealed pressure-bearing shell and a heat exchange assembly, the sealed pressure-bearing shell is provided with at least two arc-shaped shells, the at least two arc-shaped shells are arranged in the circumferential direction of the annular cavity, and the heat exchange assembly is arranged in the annular cavity. An annular structure matched with the annular cavity in shape is defined by the arc-shaped shells, a heat exchange assembly is arranged in each arc-shaped shell, and the heat exchange assemblies and the arc-shaped shells form a modularized heat exchange structure. The modularized heat exchange device capable of being assembled and disassembled is provided with at least two modularized heat exchange structures, and the modularized heat exchange structures are detachably connected with the civil engineering structure; the modular heat exchange device capable of being assembled and disassembled can be assembled and disassembled in the annular cavity between the discharging pipe shield and the civil engineering structure, and the problem that in the related technology, a heat exchange device cannot be maintained and replaced is solved.