37 results about "Eyewash" patented technology

An eyewash station, relating to the field of eyewash device technology, includes a bottle body (1) and a bottle cap (2) at its upper end. A cleaning tank (21) is provided in the middle of the upper side of the bottle cap (2). It also includes an inner water pipe (3) connecting the inside of the bottle body (1) and the upper part of the cleaning tank (21). The bottom of the cleaning tank (21) is also connected to a drain pipe (4) that communicates with the outside. When in use, the eyes are placed in the opening of the cleaning tank and the bottle body is squeezed. The cleaning liquid inside the bottle body flows out from the upper part of the cleaning tank along the inner water pipe, thereby cleaning the eyes. Then the cleaning water flows into the cleaning tank and is discharged along the drain pipe at the bottom of the cleaning tank. The cleaning operation steps are very simple and the use is very convenient.

The utility model relates to the technical field of eye care, in particular to a portable household eye washer which comprises an infusion bottle, a connecting bottle opening communicated with the inside of the infusion bottle is integrally formed at the upper end of the infusion bottle, a flushing head is in threaded connection with the connecting bottle opening, the flushing head is communicated with the inside of the infusion bottle, and the connecting bottle opening is connected with the infusion bottle. A USB charging port is formed in the lower part of the outer surface of the infusion bottle; the flushing head comprises a water storage box, a connecting sleeve is integrally formed at the lower end of the water storage box, an adjusting water pipe is arranged at the upper end of the water storage box, and an adjusting knob is arranged on the outer surface of the adjusting water pipe. According to the portable household eyewash equipment, the flushing head and the infusion bottle are integrally connected, the structure is compact, carrying is convenient, operation is easy and fast, the problems that a traditional eyewash equipment is tedious in assembly and inconvenient to carry are solved, meanwhile, the built-in ultraviolet germicidal lamp is used for ensuring sanitation and safety of the infusion bottle, infection risks are reduced, and the service life of the eyewash equipment is prolonged. And the user experience and the safety are improved.

1. The name of the design product: table type mobile single nozzle eye washer. 2. The use of the design product: for washing eyes. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

This product relates to the field of eyewash production technology, providing a filter for eyewash production, including a raw material tank for storing the eyewash concentrate, a coarse filter for filtering large particulate impurities, and a cross-flow filter including a filter tube and a filter membrane. One end of the filter tube is connected to the coarse filter, and the other end passes through the cross-flow filter and connects to the raw material tank. An opening is provided at the bottom of the filter tube located inside the cross-flow filter. The filter membrane is positioned on the opening and parallel to the flow direction of the eyewash through the filter tube, used to filter large molecular impurities in the eyewash. This filter removes large molecules through the opening parallel to the flow direction of the eyewash and the filter membrane, and washes away any remaining large molecules on the filter membrane surface through the flow of the eyewash, preventing large molecules from clogging the filter membrane and improving the utilization rate of the filter membrane.

The invention provides a chemical dosing room safety protection system and a use method thereof. The chemical dosing room safety protection system comprises an environment monitoring module, a ventilation control module, a spraying and eye washing module, a central control unit, an alarm and warning module and a remote monitoring platform. The system monitors environmental parameters in real time through multiple sensors, automatically starts protection measures such as ventilation and spraying based on a preset threshold value, and realizes intelligent linkage control. According to the invention, a safety protection system integrating risk perception, intelligent decision and active protection is constructed, early warning and rapid automatic response to toxic gas leakage can be realized, and the emergency processing efficiency is significantly improved. Meanwhile, through remote monitoring and data recording functions, digitization and traceability of safety management are achieved, the intrinsic safety level of a chemical dosing room is effectively improved, and personnel health and production safety are guaranteed.

The utility model relates to the technical field of eyewash devices, and discloses a disposable eyewash device which comprises a flushing fluid storage bottle and a flusher, the flusher is arranged at the upper end of the flushing fluid storage bottle, the flushing fluid storage bottle is in threaded connection with a bottle cap, and the bottle opening of the flushing fluid storage bottle is covered with a plastic packaging film. Positioning grooves are formed in the two ends, close to a bottle opening, of the upper edge of the flushing fluid storage bottle, and positioning rods matched with the positioning grooves are arranged at the two ends of the bottom of the flusher. The eyewash equipment comprises a flushing fluid storage bottle and a flusher, the flusher is arranged at the upper end of the flushing fluid storage bottle, a bottle cap is in threaded connection with a bottle body to ensure sealing performance, a bottle opening is covered with a plastic packaging film to enhance the sealing performance and keep eyewash sterile, and positioning grooves are formed in the two ends, close to the bottle opening, of the flushing fluid storage bottle. Positioning rods matched with the positioning grooves are arranged at the two ends of the bottom of the flusher, and it is guaranteed that the flusher can be correctly installed on the storage bottle.

The utility model discloses a buried anti-freezing eyewash device which comprises a cleaning pool, a heat preservation cylinder is arranged on the right side of the cleaning pool, a water outlet pipe is arranged in the heat preservation cylinder, a Y-shaped pipe is embedded in the cleaning pool, and the Y-shaped pipe penetrates through the heat preservation cylinder and is communicated with the outer surface of the water outlet pipe. The inner wall of the heat preservation cylinder is fixedly connected with multiple sets of annularly-arranged heating rods, and the end, close to the water outlet pipe, of each heating rod penetrates through the water outlet pipe and extends into the water outlet pipe. Through the cooperation of the heat preservation cylinder, the temperature sensor, the heating rod and the single-chip microcomputer, the heat preservation cylinder can wrap the water outlet pipe so as to achieve a certain anti-freezing effect on the exterior of the water outlet pipe, meanwhile, the temperature sensor can monitor the temperature in the heat preservation cylinder, and once the temperature reaches a set value of the temperature sensor, the single-chip microcomputer can start the heating rod to work; and the heating rod can heat the interiors of the heat preservation barrel and the water outlet pipe, so that the water is effectively prevented from being frozen, and the water outlet pipe can be prevented from deforming and cracking.

This utility model discloses an intelligent spray eyewash room with automatic cleaning, including an eyewash room body and an eyewash unit body. The eyewash room body is equipped with an electric swing door, a pressure-sensing foot pedal, a V-shaped drain channel, and an infrared human body sensor to achieve automatic response when a user enters; the eyewash unit body controls the water flow through a solenoid valve, combined with constant temperature water supply, a filtration device, and ultraviolet disinfection to ensure rinsing safety; the equipment supports manual / automatic dual-mode operation and can be linked with a remote terminal through a multi-modal interactive panel.

The utility model provides emergency shower eye washing equipment, which relates to the technical field of emergency shower eye washing equipment and comprises a water conveying pipeline, a shower nozzle is mounted at the top of the water conveying pipeline, an eye washing nozzle vessel is mounted on a water outlet of a water outlet valve in the middle of the water conveying pipeline, and a base component is mounted on the bottom surface of the water conveying pipeline. A sealing cover is installed on the top face of the eye washing nozzle vessel, a hinge assembly is installed between the eye washing nozzle vessel and the sealing cover, a pulling rope is installed between a handle of the water valve and the base assembly, and another pulling rope is installed between the hinge assembly and the base assembly. When a person stands on the pedal of the bottom plate, the rear end of the pedal is pressed downwards, then the pulling rope connected to the water valve handle pulls the water valve to be opened, water flows out of the eye washing nozzle at the first time, the person can wash the eyes in time at the first time, and the position of the water valve handle does not need to be explored.

This utility model provides an explosion-proof, electrically heated, self-supplying eyewash station, relating to the field of rinsing equipment. It includes a water tank, wheels, a handle, a water pipe, a shower head, an eyewash nozzle, and an explosion-proof electrical box. The water tank has a cylindrical structure with wheels mounted on one side of the lower part. A handle is connected to the outer wall of the water tank above the wheels. The explosion-proof electrical box is installed on the outside of the water tank, and a heating device is installed inside the water tank. The heating device is connected to the explosion-proof electrical box via an electrical circuit. A water pipe is connected to the upper part of the water tank, and the eyewash nozzle is connected to the water pipe. This eyewash station uses an electrically heated structure and a highly safe explosion-proof water tank. The switch and supporting structure are convenient and practical, ensuring safe and reliable use of the eyewash station. The wheels facilitate easy relocation as needed.

The utility model relates to the technical field of medical equipment, and discloses an eye washing chair which comprises a support, an eye washing chair body and an eye washing chair body, the support comprises a support body and a first adjusting part installed on the support body, and the first adjusting part can slide relative to the support body in the first direction; the seat plate is mounted on the bracket; the backrest is installed on the support, a first receding groove extending in the first direction is formed in the upper end of the backrest, a first waist and back placing opening is formed in the middle of the backrest in the second direction, the first waist and back placing opening is used for placing the waist and back of a humpback patient, and the first receding groove is communicated with the first waist and back placing opening; the headrest is installed at one end of the first adjusting part, and the first adjusting part can penetrate through the first receding groove and the first waist and back placement opening in the sliding path of the first adjusting part; wherein the first direction is perpendicular to the second direction. The eye washing chair disclosed by the utility model has a flexible adjusting function, and meets the treatment requirements of humpback patients and people of different age groups on eye washing.

This utility model discloses a disposable eyewash station structure, including a receiving plate. A mounting hole is formed through the center of the upper surface of the receiving plate, and a liquid-passing ring is disposed within the mounting hole. A liquid-passing hole is coaxially formed in the center of the upper surface of the liquid-passing ring. A flushing tube is rotatably engaged with the liquid-passing ring. The flushing tube includes a coaxially arranged outlet pipe and an inlet pipe, with a gap between opposite ends of the outlet pipe and the inlet pipe, the gap width being the same as the thickness of the liquid-passing ring. An arc-shaped slider is integrally formed between the opposite surfaces of the outlet pipe and the inlet pipe. A coaxially distributed arc-shaped groove is formed through the outer side of the upper surface of the liquid-passing ring, and the arc-shaped slider is slidably connected in the arc-shaped groove. The liquid-passing ring and the outlet pipe are internally equipped with a flow adjustment mechanism that can cooperate with each other. The flow adjustment is integrated through the rotatable engagement of the flushing tube and the receiving plate, improving efficiency with single-handed operation, flexibly adjusting the water flow, reducing the risk of leakage, suitable for low-cost mass production, and enhancing safety and convenience.

The invention discloses a constant-temperature and constant-pressure clean type multi-eyewash-device eyewash station with a water tank, and relates to the field of eyewash devices, the constant-temperature and constant-pressure clean type multi-eyewash-device eyewash station comprises a base, a water storage tank, a pressure water pump, a control box, a plurality of eyewash devices and a plurality of shower devices are arranged on the base, a heating coil is arranged in the water storage tank, and a water injection pipe and a blow-off pipe are arranged on the water storage tank; the two ends of the pressure water pump are communicated with a water inlet pipe and a water outlet pipe respectively, the water inlet pipe is communicated with the water storage tank, the water outlet pipe is communicated with the eye washer and the shower, a frequency converter used for controlling the rotating speed of the pressure water pump is arranged in the control box, and a pressure transmitter is arranged on the water outlet pipe and used for detecting the pressure of the water outlet pipe. The pressure transmitter is used for transmitting signals to the frequency converter and controlling the rotating speed of the pressure water pump to increase. The water pressure when the shower and the eyewash equipment are discharged is ensured, the water pressure reaches the national standard flow, and the stability of using the eyewash station is improved.

The utility model relates to a sulfur waste heat recycling device which comprises a circulating tank, a circulating pump A, a circulating pump B, a sulfur furnace and a boiler water supplementing tank, a heating pipe is spirally arranged on the furnace wall of the sulfur furnace in a surrounding mode, a heat preservation layer is sleeved on the outer side of the heating pipe, and the top of the circulating tank is connected with a water supplementing pipeline. The bottom of the circulation tank is connected with a heating pipe, a boiler water supplementing tank, an eye washer water pipeline and a tap water heat tracing pipeline through a circulation pump A. The water outlet end of the heating pipe is connected with the top of the circulation tank through a water conveying pipeline, the bottom of the circulation tank is further connected with a circulation pump B, the circulation pump B is connected with the heating pipe, and the circulation tank, the circulation pump A, the heating pipe and the water conveying pipeline form a circulation pipeline. And the circulating tank, the circulating pump B, the heating pipe and the water conveying pipeline form a warming pipeline. Cooling water is heated through the circulating pipeline, hot water with a certain volume is stored in the circulating tank and then supplied, and the temperature stability of water is guaranteed.

A portable eyewash station includes a water tank with a water inlet at the top and a mounting groove on the front side. A water delivery frame is fitted into the mounting groove. Shaft holes are formed at the bottom of both side walls of the mounting groove. Rotating shafts are fixedly mounted on the bottom of both side walls of the water delivery frame, and the bottom of the water delivery frame is rotatably connected to the shaft holes at the bottom of the side walls of the mounting groove via the rotating shafts. Two eyewash nozzles are positioned above the inner side of the water delivery frame, which is flush with the mounting groove. A U-shaped water channel is provided inside the water delivery frame, with its upper end connected to each of the two eyewash nozzles. A water inlet connector is located at the lower end of the U-shaped water channel. A water outlet connector is located at the lower front side of the water tank, connected to the inner cavity of the water tank. The water outlet connector and the water inlet connector are interconnected via a water pipe. This invention overcomes the shortcomings of existing technologies, allowing for convenient and quick use in different locations. Furthermore, it relies entirely on the pressure of the liquid within the water tank to achieve the eyewash effect.

The utility model provides anti-freezing portable eyewash equipment. The anti-freezing portable eyewash equipment comprises a shell, a vacuum suction device, a water tank and a spray head assembly, the water tank is arranged in the shell, and a heating device is arranged on the side wall of the water tank and used for heating flushing water stored in the water tank; the bottom of the water tank is of an inclined structure, the height of the bottom of the water tank is gradually reduced from one side to the other side through the inclined structure, and one end of the vacuum suction device communicates with the lowest side of the bottom of the water tank. The spray head assembly is located outside the shell and communicates with the other end of the vacuum suction device. By adopting the design of a vacuum suction structure and an inclined water tank, a self-emptying anti-freezing system is formed, the heating effect of a heating area is achieved, the problems that residual water in the water tank and a pipeline freezes in winter and flushing water freezes easily are solved, normal use of equipment in a low-temperature environment is achieved, the maintenance cost and the maintenance frequency are reduced, and the service life of the equipment is prolonged. And reliability and stability are improved.

The utility model discloses a water pressure stabilizing device applied to eye washing equipment, which comprises the eye washing equipment and a water inlet pipeline connected with the eye washing equipment, the water inlet pipeline comprises a main pipeline and a branch pipeline, the main pipeline and the branch pipeline are arranged in parallel, a pressure stabilizing device is arranged on the branch pipeline, and the pressure stabilizing device is connected with the water inlet pipeline. A buffer device and a push plate type switch are arranged on the water inlet pipeline, and the buffer device is arranged at the position 20-30 cm away from the front end of the push plate type switch; the device further comprises a water outlet pipeline connected with the eyewash equipment, the water outlet pipeline comprises an upper connecting end and a lower connecting end, the upper connecting end is detachably connected with a channel opening of the eyewash equipment, the lower connecting end is detachably connected with the positioning base, and a drainage channel is arranged at the position, 5-10 cm away from the base, of the lower connecting end. The drainage channel is connected with a pre-buried underground drainage well through a connecting pipe.

The application discloses a portable flushing device for ophthalmic first aid, and relates to the technical field of ophthalmic first aid flushing, which comprises a headrest base, a sliding arc piece movably arranged on the headrest base, first mounting blocks fixedly arranged on both sides of the upper end of the sliding arc piece, and an arc-shaped frame rotatably arranged on the upper side of the first mounting blocks; the flushing device comprises a flexible block, a first water pipe and a water flow nozzle, the flexible block is movably arranged on the arc-shaped frame, the first water pipe is fixedly arranged in the flexible block, and the water flow nozzle is arrayed on the lower side of the first water pipe; and the flexible block is fixedly arranged on an adjusting and fixing mechanism. Compared with general lying eye washers, the portable flushing device can prevent the injured person from colliding when struggling and can follow the eye movement of the injured person, so that the device is safer, more functional and more stable in use, and is superior to the eyeglass type eye washer with the same function.

1. Name of the product in this design: Desktop Portable Dual-Port Eyewash Station. 2. Purpose of this design: For cleaning eyes. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of emergency safety, in particular to a safety emergency device suitable for atrocious weather, which comprises a water delivery pipe, a shower component, a water inlet, an eye washer assembly, a water outlet, a base and a temperature control pipeline. The water supply system is reasonable and compact in structure and convenient to use, the temperature control valve is installed on a water supply pipeline of an existing eye washing facility, relevant control parameters are set, when the temperature of washing liquid is higher than a certain temperature, the temperature control valve is automatically opened to drain water, cool and recycle waste water, and when the temperature is lower than a certain temperature, the temperature control valve is automatically closed to stop draining water; when the temperature of the flushing fluid is lower than 0 DEG C, the temperature control valve is automatically opened to drain water, so that the flushing fluid flows, and the phenomenon of pipeline blockage caused by freezing is prevented. According to the utility model, the safety risk is effectively reduced, the waste of flushing fluid is reduced, the labor intensity of personnel is reduced, the safety benefit is increased to different degrees, and the device has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

The turnover type eyewash equipment comprises a three-way valve and fixing nuts installed at the two ends of the three-way valve, connecting pipes are connected to openings in the two ends of the three-way valve, the other ends of the connecting pipes are connected with a water outlet pipe, a switch is connected to the outer side wall of the water outlet pipe, and a universal hose is arranged at the top end of the water outlet pipe of the switch. And the other end of the universal hose is connected with a water nozzle. The supporting filter frame is mounted in the treatment box, the activated carbon plate and the filter screen are sequentially mounted in the supporting filter frame from bottom to top in the process, then the treatment box is mounted between the water outlet pipe and the universal hose through the flange, then the switch is controlled, and at the moment, water flow passes through the interior of the treatment box to be subjected to multi-layer filtration treatment; and clean water flows out of the water outlet nozzle, so that an experimenter can clean eyes conveniently, the situation that the eyes of the experimenter are uncomfortable to clean due to the fact that the experiment water contains impurities is avoided, and the practicability of the eyewash equipment is improved.

The utility model provides chemical damage treatment equipment, which belongs to the technical field of production and test safety equipment and comprises a bottom plate, a plurality of side baffles, a driving component and a shower. The bottom plate is laid on the ground and provided with a water inlet and a water outlet. The side baffles are arranged on the periphery of the bottom plate in a surrounding mode, the edges of one sides of the side baffles are hinged to the corresponding side edges of the bottom plate, and the side baffles have the erected state and the flatly-laid state; in the erected state, the side baffles and the bottom plate define a splash-proof pool, and the side edges of every two adjacent side baffles are in sealed butt joint. In the tiled state, each side baffle is tiled on the ground; the driving assembly is in transmission connection with the side baffles so as to drive the side baffles to be switched between the erected state and the tiled state. And an eye washer and a controller are arranged on the shower. The chemical injury treatment equipment provided by the utility model can effectively avoid the risk of secondary injury caused by stumbling people, and is higher in use safety.

This invention relates to the field of ophthalmic diagnostic and therapeutic device technology, and discloses a highly efficient and convenient eyewash device and method for ophthalmology. It includes a medication supply module, a handheld main body, a rinsing nozzle, and a waste liquid collection component. The medication supply module, handheld main body, and rinsing nozzle are connected sequentially. The medication supply module includes a medication tank, a delivery pump, and a delivery pipeline. The medication tank has a storage chamber inside. The delivery pump includes an inlet end and an outlet end. The inlet end is connected to the storage chamber through a pipe, and the outlet end is connected to the handheld main body through the delivery pipeline. A pressure stabilization and control component is installed on the delivery pipeline. The pressure stabilization and control component includes a pulsating damping pressure stabilizing chamber, a pressure fine-tuning valve, and a mechanical pressure limiting and relief valve arranged sequentially along the medication flow direction. This invention achieves precise and stable control of rinsing pressure, forms a uniform and gentle fan-shaped water flow, and efficiently collects waste liquid through the synergistic effect of pressure stabilization and control, adjustable fan-shaped water flow, and integrated waste liquid collection.

The invention belongs to the technical field of emergency rescue, and relates to a centralized spraying system and method based on AI video monitoring. Comprising an AI video monitoring module, a water supply guarantee module, a spraying eye washer, an alarm device and a control module, the control module is respectively connected with the AI video monitoring module, the water supply guarantee module, the spraying eye washer and the alarm device; and the spraying eye washer is connected with the water supply guarantee module. According to the invention, full-process automatic emergency response from accident sensing, automatic judgment to spray starting is realized, so that the timeliness and accuracy of emergency processing and the overall safety protection level are remarkably improved.

1. Name of the product in this design: Tabletop Rotating Eyewash Station. 2. Purpose of this design: For cleaning eyes. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This utility model relates to the field of medical device technology and discloses a splash-proof eyewash device for ophthalmology, including a housing. The housing contains a cleaning solution area and a waste solution area, separated by a partition. A straight pipe is fixedly connected to the top of the housing, and a rinsing basin is fixedly connected to the top of the straight pipe. A pressurization component is connected to the inner wall of the cleaning solution area, and an outlet pipe is provided inside the cleaning solution area, with an outlet valve connected to one end. In this utility model, the cleaning solution sprayed from the nozzle falls into the rinsing basin after rinsing the eyes, and then flows through the straight pipe into the waste solution area. This design prevents the rinsing solution from spilling onto the ground, preventing splashing and maintaining a clean surrounding environment. Furthermore, a dust cover on the outer surface of the nozzle can cover the nozzle when not in use, preventing dust from entering the nozzle and avoiding contamination, thus ensuring the cleanliness of the nozzle and the hygiene of the eyewash solution.

The utility model relates to the field of eyewash equipment, and discloses an eyewash equipment convenient for angle adjustment and depth self-cleaning, which comprises a fixed pipe, a connecting pipe fixedly connected to the side wall of the fixed pipe, a shower nozzle fixedly connected to the side wall of the connecting pipe, a hand pull ring arranged on the side wall of the connecting pipe, and a drain pipe fixedly connected to the side wall of the fixed pipe. An adjusting assembly is arranged on the side wall of the drainage pipe, a fixing assembly is arranged on the side wall of the drainage pipe, and a push plate is arranged on the side wall of the drainage pipe; the adjusting assembly comprises an eye washing basin, the bottom of the eye washing basin is fixedly connected to the side wall of the drainage pipe, and a fixing plate is fixedly connected to the interior of the eye washing basin. According to the utility model, the handle is rotated to enable the worm to rotate and drive the worm gear to rotate, so that the connecting rod is rotated to drive the connecting block fixed on the side wall to drive the water conveying pipe to rotate and adjust the angle of the spray head, and the problem that the angle of the spray head of the traditional eyewash equipment is fixed and cannot be adjusted according to the requirements of different users is solved.

This utility model relates to the field of eyewash technology and discloses an adjustable eyewash device, including a stainless steel collection basin with a water inlet pipe connected to it. A valve is connected to the water inlet pipe, and an eyewash tube is connected to the outlet of the water inlet pipe. A filter screen is fixedly connected inside the eyewash tube, and a sealing cover is slidably connected inside the eyewash tube, with the surface of the sealing cover in contact with the surface of the filter screen. This utility model controls the water flow by rotating the valve. When water enters the eyewash tube through the water inlet pipe, pulling the sealing cover out of the eyewash tube allows the water to pass through the filter screen first, thus cleaning the patient's eyes and reducing harm to the eyes.

1. Name of the designed product: eye washer. 2. Use of the designed product: the designed product is used for assisting in washing eyes. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The utility model relates to a system for preparing water for eyewash equipment by utilizing waste heat of circulating water in a device. The system comprises a heat exchange water tank, a water supply pipeline, a circulating pipeline, a water delivery pipeline, an outer bypass pipeline and an inner bypass pipeline, one end of the water conveying pipeline is connected with the heat exchange water tank, the other end of the water conveying pipeline is connected with the water using end of the eyewash equipment, and an ultraviolet disinfection module, a first pressure transmitter, a first pipeline pump, a second pressure transmitter and a first electric control valve are sequentially arranged on the water conveying pipeline in the water flowing direction. The water inlet end of the outer bypass pipeline is connected with the water supply pipeline and located between the first thermometer and the first valve, the other end of the outer bypass pipeline is connected with the water using end of the eyewash equipment, and a second electric control valve is arranged on the outer bypass pipeline; the water inlet end of the inner bypass pipeline is connected with the water conveying pipeline and located between the second pressure transmitter and the first electric control valve, the other end of the inner bypass pipeline is connected with the heat exchange water tank, and a third electric control valve is arranged on the inner bypass pipeline.