45 results about "Soft water" patented technology

The utility model provides a purified water dispenser which comprises a water softening system, a water purifying system and a hot water system, the water purifying system comprises a filtering system, a soft water quality detection piece, a soft water temperature detection piece and a variable-frequency booster pump, and the soft water quality detection piece and the soft water temperature detection piece are both connected with the variable-frequency booster pump. The rotating speed of the variable-frequency booster pump is determined according to the total amount and temperature of dissolved solids in soft water measured by the soft water quality detection part and the soft water temperature detection part, and the stability of the water making flow speed of the purified water dispenser is guaranteed.

The embodiment of the utility model discloses a purified water dispenser which comprises a water softening system, a water purifying system and a controller, a water inlet of the water softening system is used for receiving raw water, and a water outlet of the water softening system can output soft water; a water inlet of the water purification system is communicated with a water outlet of the water softening system, a water outlet of the water purification system is used for outputting purified water, the water purification system comprises a filtering system and a wastewater drainage pipeline, a water inlet of the filtering system is communicated with the water inlet of the water purification system, and a water outlet of the filtering system is communicated with the water outlet of the water purification system; a wastewater port of the filtering system is communicated with a wastewater drainage pipeline; the controller is connected with the soft water system and is connected with the wastewater drainage pipeline; when the water outlet of the water softening system outputs hard water, the controller is used for controlling the wastewater drainage pipeline to increase the wastewater discharge capacity so as to protect the filtering system, and the filter element can have the normal service life.

The purification water dispenser comprises a water softening system, a water purification system and a hot water system, the water softening system is communicated with a raw water inlet of the purification water dispenser, the water purification system comprises a reverse osmosis filter element and a booster pump, and a water inlet of the reverse osmosis filter element is communicated with a first soft water outlet channel of the water softening system; the booster pump is arranged between a first soft water outlet channel of the water softening system and a water inlet of the reverse osmosis filter element, a water inlet of the hot water system is communicated with a water outlet of the reverse osmosis filter element, and the hot water system is used for providing hot water softened by the water softening system and purified by the water purification system for a user. According to the technical scheme, raw water can be softened through the water softening system, and the concentration of calcium and magnesium ions in water entering the reverse osmosis filter element is reduced, so that the service life of the reverse osmosis filter element is prolonged.

The utility model discloses integrated industrial circulating water ion removal equipment which comprises a shell, a first water inlet and a first water outlet are formed in the position, close to the bottom, of the end face of one side in the length extension direction of the shell, the first water inlet is connected with a water inlet pipe, and the water inlet pipe extends upwards in the shell and is connected with one end of a sterilization and algae removal groove; a second water outlet is formed in the other end of the sterilization and algae removal tank and connected with a water outlet pipe, a third water outlet of the water outlet pipe is formed in the position, close to the bottom, of one side of the adsorption cavity in the length direction, and a plurality of adsorption devices which are evenly distributed and can adsorb calcium and magnesium ions in water are arranged in the length direction of the adsorption cavity. An overflow port of an overflow pipe is formed in the other side of the adsorption cavity; the overflow pipe is connected with the first water outlet. By adopting the design scheme and the highly integrated design, the sterilization, algae removal and calcium and magnesium ion adsorption of the industrial hard water are simultaneously realized through one device, so that the industrial hard water is converted into soft water, and the soft water can be recycled.

The utility model discloses a bypass valve filter core subassembly that can adjust water mixing ratio, including filter core body, with the fixed bypass valve body of filter core body connection, filter core body can filter the calcium, magnesium ion in drinking water, get the second filtration water, and the bypass valve body can adjust the mixing ratio of drinking water and second filtration water, and filter core connecting seat is connected with the bypass valve connecting seat, and the upper end of drinking water inlet joint is fastened with the bypass valve water pipe, and the second soft water outlet channel is communicated with the bypass valve outlet channel, and the bypass valve outlet channel is communicated with the bypass valve outlet pipe again, the utility model discloses filter core body can filter the calcium, magnesium ion in drinking water, get the second filtration water, and the bypass valve body can freely adjust the mixing ratio of drinking water and second filtration water, and the water of different softness is provided for the user to select.

The utility model discloses a salt box control mechanism and a soft water heater, and the salt box control mechanism comprises a salt box which contains soft water salt; one end of the water injection pipe is connected with water to be treated through a water inlet pipe, the other end of the water injection pipe extends into the salt tank, and a stop valve is arranged on the water injection pipe; the salt valve is arranged in the salt box, the salt valve is connected with a salt suction pipe to output saturated salt water, and a valve is arranged on the salt suction pipe; a salt cavity with a large inner diameter and a pipe cavity with a small inner diameter are formed in the salt valve, one end of the salt cavity is communicated with the salt suction pipe, the other end of the salt cavity is communicated with the pipe cavity, and the pipe cavity is arranged on one side of the salt cavity and extends downwards to abut against the inner bottom wall of the salt box. According to the salt box, saturated salt water in the salt box can be absorbed in an unpowered mode to form a dry type salt box, the salt climbing phenomenon is avoided, the water injection amount can be flexibly adjusted according to requirements, the amount of the formed saturated salt water can meet the requirement for regeneration of soft water resin, and waste is avoided.

A system and method for reclaiming and treating groundwater collected from an underground level of a structure or building site to supply non-potable water to an end use system, such as an irrigation system, a pond, an equipment washing system, a cooling system, or a heating system. Groundwater seeps into such underground levels and has to be pumped out to prevent flooding the structure. Normally, this groundwater is discharged as a waste stream but can be treated for non-potable use using an three-stage treatment system comprising an ultrafiltration system, a water softener system, and a reverse osmosis system. The water softener system may be used or bypassed depending on acceptable TDS levels in the end use system and the TDS level of the reclaimed groundwater. Use of the system and method can save millions of gallons of groundwater per year per building site from being wasted.

The utility model discloses a soft water purifying and heating single-waterway system, and relates to the technical field of soft water purifying equipment, the soft water purifying and heating single-waterway system comprises a water softening system, a first-stage filter element, a second-stage filter element and a hot water system which are sequentially connected in series, the first-stage filter element is used for primarily filtering soft water flowing into the first-stage filter element from the water softening system to obtain first filtered water, and the second-stage filter element is used for filtering second filtered water; the first filtered water can flow into the second-stage filter element, the second-stage filter element conducts second-stage filtration on the first filtered water, dissolved salt, organic matter, microorganisms and the like in the water are deeply filtered out, first pure water is obtained, the first pure water can flow into the hot water system, the hot water system heats the first pure water to obtain hot water, and therefore the hot water can be supplied to users. The soft clean heat single water path system can ensure that dissolved salts and the like in water are removed before heating, so that no scale is generated during heating, the heating efficiency and the service life of the hot water system are not influenced, and meanwhile, the pure water outlet valve is communicated with the downstream of the secondary filter element, so that the pure water can be directly drunk by a user.

The present disclosure provides a kind of pure soft water route system.The pure soft water route system includes controller, soft water device, water purification device and salt making device;The waste water outlet of water purification device is communicated with the first water inlet of salt making device by first pipeline;The salt suction port of soft water device is communicated with salt making device by salt suction pipe;The water inlet of soft water device and the water inlet of water purification device are used to access raw water;Water purification device is used to purify raw water to obtain treated waste water, and waste water flows into salt making device to form salt solution via first pipeline;Controller is used to drive soft water device to suck salt solution from salt making device via salt suction pipe in soft water regeneration mode, to soften raw water to generate soft water, and to flow out via soft water outlet.The present disclosure realizes the reuse of waste water while meeting the daily use demand of soft water, pure water, cleaning water and flushing water of user, and saves water resources.

A water softening device (1) comprises: a housing (3) having an internal space; an inflow port (2) through which a treatment target water flows into the internal space; a water treatment layer (4) that removes hardness components from the treatment target water and generates a weakly acidic soft water; and an outflow port (5) through which the weakly acidic soft water flows out from the internal space. The water treatment layer (4) comprises: a first soft water layer (4a) that removes the hardness components from the treatment target water; a neutralization layer (4b) that is provided downstream of the first soft water layer (4a) and neutralizes the treatment target water; a second soft water layer (4c) that is provided downstream of the neutralization layer (4b) and removes the hardness components from the treatment target water; and an acidification layer (4d) that is provided downstream of the second soft water layer (4c), acidifies the treatment target water, and removes the hardness components from the treatment target water.

The invention provides a supporting structure for a tunnel to pass through a soft water-rich stratum and a construction method of the supporting structure, belongs to the technical field of tunnel engineering supporting and lining, and solves the problems that in the prior art, the supporting rigidity is insufficient, a waterproof blind area exists, and cooperative stress is poor. According to the forepoling system, the outer-layer and inner-layer horizontal jet grouting piles and the large pipe shed are combined to form a closed reinforcing and waterproof curtain; the composite lining system sequentially comprises a primary support, a waterproof layer and a secondary lining layer from outside to inside. The connection collaborative structure takes a pipe shed end part supporting sleeve arch as a core to realize integrated connection and collaborative stress of an advance support and a lining system; the construction method comprises the steps of double-layer jet grouting pile construction, large pipe shed insertion and grouting, tunnel excavation, composite lining construction and whole-process monitoring. The method is suitable for tunnel construction of various soft water-rich stratums, tunnel construction safety and structural stability are remarkably improved, and remarkable safety benefits, economic benefits and social benefits are achieved.

The application discloses a construction method for rapid and safe shield tunneling based on lacustrine deposit soft water-rich stratum, which comprises the following steps: 1, reinforcing the shield end; 2, tunneling by the shield machine; 3, removing the first layer of concrete structure; 4, removing the second layer of concrete structure; 5, removing the third layer of concrete structure; 6, grouting of the first grouting hole; 7, grouting of the second grouting hole; and 8, tunneling by the shield machine. In the application, the top of the second layer of concrete structure is removed first, so that the second layer of concrete structure is deformed, damaged, split and cracked during the tunneling by the shield machine, the speed of removal is greatly accelerated, the construction efficiency is improved, and the receiving time of the shield machine is shortened. The grouting hole assembly is grouted from the ground to the tunnel, water channels behind the segments are timely filled, the problems of slow grouting speed and small grouting range in the tunnel are solved, the purpose of rapid tunneling is achieved, and the effect of rapid water stopping at the tunnel portal is achieved.

The embodiment of the utility model provides a soft and clean double-water waterway board and a clean water dispenser, the clean water dispenser comprises a soft water system and a clean water system, and the soft and clean double-water waterway board integrates a front clean water waterway, a membrane clean water waterway and a rear clean water waterway so as to be communicated with a multi-stage filter of the clean water dispenser. Soft water passes through the front purification water path, the membrane purification water path and the rear purification water path to generate pure water, the pure water is supplied to a user, the front purification water path is further used for being communicated with raw water and guiding the raw water into the front filter element to complete front filtration so as to form purified raw water, and the purified raw water can be mixed with the pure water in a mineral system to form mineral water. According to the water purifying and drinking machine, the dispersedly-arranged water purifying paths in the related technology are integrated, the occupied volume of the pipeline structure is reduced, the internal structure of the equipment is simplified, a continuous and complete assembly area is formed in the water purifying and drinking machine, internal parts are allowed to form more compact space arrangement, and the overall size of the water purifying and drinking machine is reduced.

The invention relates to the technical field of agricultural water conservancy projects, in particular to a soft rainwater collection irrigation system. The system comprises a rainwater collecting surface, a soft water cellar, an irrigation and desilting dual-purpose valve group and a safety protection assembly, the rainwater collecting surface is provided with a water inlet for collecting rainwater, and the soft water cellar is made of a flexible polymer composite sheet containing a reinforced skeleton layer and a bacteriostatic functional layer, so that stable storage of the rainwater is realized; the dual-purpose valve group can quickly switch irrigation and sand discharge functions through the main pipeline, the irrigation branch, the sand discharge branch and the control part; the safety protection assembly comprises a steel cable net and is assisted by an isolation guardrail and an anti-falling protection net to strengthen safety guarantee. The soft water cellar is higher than an irrigated area by a preset distance, and self-pressure irrigation is achieved. And the water cellar is provided with an overflow protection device to prevent overpressure damage. The system integrates the functions of rainwater collection, storage, irrigation and protection, does not need extra power, adapts to complex terrains, is low in cost and long in service life, and effectively solves the problem of irrigation of the mountainous and dry land.

A portable water softener with an integrated pre-filter, designed specifically for use in recreational vehicles (RVs). The device combines water filtration and softening in a single, compact unit, providing an efficient solution for improving water quality in mobile environments. The pre-filter removes impurities such as sand, rust, sediments, bad taste, odour, and volatile organic compounds (VOCs) before the water enters the softening chamber (104). The softening chamber (104) contains resin beads that perform ion exchange, removing hardness-causing calcium and magnesium ions. The integrated design enhances the efficiency of the water softening process, reduces the need for multiple devices, and simplifies installation and maintenance. The device is protected by a durable neoprene sleeve, making it suitable for various environmental conditions encountered during travel. The invention offers an effective, user-friendly, and portable solution for ensuring high-quality water in RVs, addressing the limitations of existing water softening and filtration systems.

The application discloses a kind of phosphorus-free pre-film agent, which is composed of the following components with mass percentage: N-lauroyl sarcosine 12-18%, zinc salt 15-20%, ferrous salt 7-10%, acrylic acid-itaconic acid copolymer 5-9% and soft water 50-60%. The application also discloses a preparation method of the above-mentioned phosphorus-free pre-film agent and a method for pre-film treatment in circulating cooling water system. The pre-film agent can effectively avoid the problem that traditional phosphorus-containing pre-film agent easily causes water eutrophication. The circulating water after pre-film does not contain phosphorus and can be recycled. Therefore, the pre-film agent does not need to be discharged after pre-film is completed and can be directly transferred to normal operation, thereby saving water resources and cleaning pre-film cost. The pre-film agent has good synergistic effect among components, and forms an organic-inorganic composite film interwoven on the metal surface. The composite film has the characteristics of rapid film formation, compactness, smoothness, uniformity, stable adhesion and strong corrosion resistance.

To provide a dishwasher and an operation management system capable of solving the problem that water stains and water spots are easily left on dishes since the water quality of city water to be used is different and the aggregation and re-adhesion of dirt are promoted by a hardness component such as magnesium in an area where the hardness of water is high.SOLUTION: A control unit that controls a washing process, a rinsing process, and a drying process according to control conditions, an address information acquisition unit that acquires address information capable of specifying an installation area, a communication unit that can transmit the address information to an external server, a control information acquisition unit, and a measurement unit that measures a remaining amount of liquid detergent used in the washing process, wherein the control unit acquires control information of a first control condition when the water quality of the water supply source is soft water and acquires control information of a second control condition when the water quality of the water supply source is hard water, when the remaining amount of the liquid detergent is equal to or more than a reference value, the control unit starts the operation according to either the first control condition or the second control condition.SELECTED DRAWING: Figure 6

The utility model discloses a complete pressurizing unit of an intelligent pressure test control system. The complete pressurizing unit comprises a test water tank, a surge tank, an underground water tank and an intelligent control cabinet, the test water tank provides a constant-pressure water source for the surge tank through the reciprocating pump, and the surge tank is connected with the detachable plate heat exchangers through multiple groups of parallel branches to realize synchronous water injection, pressure boosting and pressure maintaining; the underground water tank forms an external circulation system through the soft water settling tank, the sand tank and the blue dirt separator, and the centrifugal pump is combined to filter, recycle and reuse the softened water; the intelligent control cabinet integrates a PLC and an HMI touch screen, regulates and controls pressure, temperature and water flow balance in real time, automatically generates a pressure test data report and stores the pressure test data report to a computer operation end. Through multi-branch synchronous operation, closed-loop water circulation and full-automatic control, the pressure testing efficiency is improved to 6 times that of manual operation, the repeated utilization rate of softened water reaches 95%, water resource waste and manual intervention risks are remarkably reduced, and the device has the advantages of being efficient, safe and environmentally friendly.

The utility model discloses a purified water dispenser which comprises a water softening system, a water purifying system and a mineral water pipeline, the water softening system comprises a water softening valve and a resin tank, a valve shell of the water softening valve is provided with a raw water inlet channel, a first soft water outlet channel and a raw water outlet channel, and the raw water outlet channel communicates with the raw water inlet channel; the water purification system comprises a front filter element, a reverse osmosis filter element and a rear filter element which are sequentially arranged in the water path direction, and soft water passing through the water softening system can be subjected to multiple filtration through the water purification system to generate soft water which can be directly drunk. Raw water discharged through the raw water outlet channel can generate purified raw water under the filtering action of the front filter element, the purified raw water can be mixed with part of soft water in the soft water, and mineral water which can be directly drunk is formed in the mineral water pipeline.

The application discloses a high-temperature faucet with a water-air separation device, which comprises a water-air separation device and a faucet main body, the faucet main body is provided with a containing space at the water outlet end, and the water-air separation device is installed in the containing space; a cold water inlet pipe and a hot water inlet pipe are in communication with the cold water and hot water inlets of the water-air separation device, the water-air separation device comprises a hot water cavity and an exhaust passage, the water passing area of the hot water cavity is larger than the hot water inlet, and at least one water baffle is arranged in the hot water cavity; an exhaust window is formed in the side wall of the hot water cavity, and the hot water cavity and the exhaust passage are in communication through the exhaust window. The high-temperature faucet integrates the water-air separation device in the water outlet end of the faucet main body, has a simple structure and occupies a small space, has a good water-air separation effect, soft water flow, good water outlet effect and can avoid scalding of users.

The utility model discloses a purified water dispenser which comprises a water softening system, a water purifying system and a mineral water pipeline, and the water softening system is communicated with a raw water inlet; the water purification system comprises a front filter element and a reverse osmosis filter element which are sequentially arranged in the water path direction, and the front filter element is communicated with a first soft water outlet channel of the water softening system or the raw water inlet; the mineral water pipeline is communicated with the water outlet end of the front filter element and the water outlet end of the reverse osmosis filter element and used for mixing water filtered by the front filter element and pure water filtered by the reverse osmosis filter element into mineral water, and the mineral water with the stable TDS value can be output.

The invention discloses a double-tank water softener and a control method thereof, and belongs to the technical field of water softening treatment.The double-tank water softener can flexibly adapt to different water use requirements, specifically, the double-tank water softener automatically enters a series connection mode during high-hardness water inflow, and the effluent quality is ensured through two-stage treatment; when large-flow water supply is needed, the parallel connection mode is automatically switched, so that the instantaneous peak water demand is met; under the normal condition, the system operates in a one-use and one-standby mode, so that alternate work of producing water by one resin tank and standby by the other resin tank is realized, and continuous soft water supply is guaranteed. Therefore, the defects that a traditional water softener is fixed in working mode and cannot automatically adapt to water quality and flow change are effectively overcome, and the continuous water supply quality can be improved while high-hardness water inlet and large-flow water supply are both considered.

The application provides a water production method, device, medium and purified water dispenser. The method is applied to the field of household appliances. A variable frequency booster pump is used in the method. Soft water quality detection members and soft water temperature detection members are arranged in a water purification system of the purified water dispenser. The current total dissolved solids and the current temperature in the soft water are obtained through the two detection members. According to the relationship among the total dissolved solids, the temperature and the rotating speed of the variable frequency booster pump, the target rotating speed of the variable frequency booster pump corresponding to the current total dissolved solids and the current temperature is determined. Then, the variable frequency booster pump is adjusted according to the target rotating speed. The rotating speed of the variable frequency booster pump is adjusted, so that the stability of the water production flow rate of the water purification system is ensured.

The invention relates to the field of pipeline cooling, in particular to a natural gas gathering and transportation pipeline cooling device which comprises a well mouth standard buried pipe ditch and a conveying pipeline standard heating furnace, the buried pipe ditch is provided with a pipe ditch water circulation system to form a cooling water pond, and the heating furnace is provided with a furnace body water circulation system to form a cooler. The pipe ditch water circulation system comprises a circulation water pool, a circulation pipeline is arranged between the circulation water pool and the cooling water pool, and a circulation pump is arranged on the circulation pipeline; the furnace body water circulation system comprises a heating furnace standard configuration soft water pool, a circulation pipeline is arranged between the soft water pool and a furnace body of the heating furnace, and a heating furnace standard configuration circulation pump is arranged on the circulation pipeline. According to the device, an existing device is utilized, the gas production pipeline is cooled through the water circulation system, the investment cost is low, the technological process of the water circulation system is simple and convenient to implement, and the cooling effect is good.

The water level control structure comprises a salt box, a water pipe and a stop valve, soft water salt is contained in the salt box, one end of the water pipe is connected with water to be treated through a water inlet pipe, the other end of the water pipe extends into the salt box, and the stop valve is arranged on the water pipe. When water needs to be injected into the salt tank to dissolve soft water salt, the needed saturated salt water amount can be obtained according to the reduction degree of the adsorption capacity of soft water resin, and the water injection time is controlled through the stop valve to achieve the purpose of controlling the water injection amount. Thus, the water level control structure can flexibly adjust the water injection amount according to the requirement, so that the formed saturated salt water amount meets the requirement for reactivating the water softening resin, waste is avoided, it is guaranteed that the water softening assembly in the water heater can be completely activated to treat water normally, and the requirement for outputting soft hot water of the water heater is met; and resource waste is avoided.

The utility model provides a purified water dispenser which comprises a water softening system, a water purifying system and a hot water system, the water purifying system comprises a variable-frequency booster pump, the hot water system comprises a tank body and a hot tank water replenishing flow meter, and the rotating speed of the variable-frequency booster pump is determined according to the water replenishing amount, measured by the hot tank water replenishing flow meter, in the tank body; the water surface oscillation amplitude in the tank body is reduced, signal errors of the high-water-level probe are prevented, and then the water supplementing amount of the hot tank reaches the maximum water containing volume in the tank body.

The utility model discloses a soft water auxiliary salt dissolving device which comprises a box body, a water inlet control valve group, an air inlet valve group, a water ejector, a raw water inlet pipeline, a salt box connecting pipeline, an air inlet pipeline, an air ejector pipe and a water outlet valve, an inner cavity suitable for storing water is arranged in the box body, and a salt particle feeding opening is formed in the upper surface of the box body; the water injector is provided with a water inlet, a salt box connecting port and a water outlet; one end of the raw water inlet pipeline is suitable for being connected with a raw water source, and the other end is communicated with a water inlet of the water injector; the water inlet control valve group is arranged on a raw water inlet pipeline between the raw water source and the water injector; one end of the salt box connecting pipeline extends and penetrates through the box body, and the other end of the salt box connecting pipeline is communicated with a salt box connecting port of the water ejector; one end of the air inlet pipeline is suitable for being connected with an external compressed air source. According to the utility model, salt particles can be promoted to be quickly dissolved, salt water required in the regeneration process is ensured to reach saturation concentration, and the regeneration efficiency of softened resin is improved.

The present invention relates to a water collection device used for various environmental measurements such as water quality testing, water supply and sewage diagnosis, and water resource field surveys. A U-shaped plate body, comprising a main plate (21) and a side plate (22), and a circumferential plate (30) are joined together. An adhesive layer (41) is formed on the inner surface of the circumferential plate (30) and on a reciprocating plate (40) mounted on the circumferential plate (30) to which the surface of a soft water collection bottle (10) adheres. An extension rod (50) is joined to the circumferential plate (30) or the side plate (22), so that a soft water collection bottle (10) is inserted into the circumferential plate (30) and loaded. Through the present invention, the convenience of water collection work using a soft water collection bottle (10) can be dramatically improved, and direct water collection is possible by directly immersing the soft water collection bottle (10) in water, thereby preventing secondary contamination or mixing of impurities into the sample and improving the reliability of the sample.

The application discloses a double-water-path structure for adding salt in a dish-washing machine, which comprises a soft water cavity and a water path cavity, a water inlet communicating with an inner container is arranged in the water path cavity, the water path cavity is divided into a direct connection water path and a soft water path which are independent of each other, the soft water path is used for connecting the water inlet I at the bottom of a breather with the soft water cavity and connecting the soft water cavity with the water inlet, the direct connection water path is used for connecting the water inlet II at the bottom of the breather with the water inlet, the soft water cavity is divided into a storage cavity and a softening cavity, a salt adding opening is arranged at the top of the storage cavity, and the storage cavity and the softening cavity are communicated through a water inlet hole; the salt cavity is provided with a filling opening at the top, so that the softening salt can be added after the door of the dish-washing machine is opened; the application is simple and convenient to use, has a double-water-path design, and can select different water paths according to different use requirements, so that the application has the advantages of saving softening salt and reducing power consumption.

The application discloses a circulating system using condenser drainage, wherein a soft water tank and a cold water tower are communicated with a clarification tank; a clean water tank, a heat exchanger B, a primary filter device, an ultrafiltration device, a reverse osmosis device and a desalination system are sequentially communicated between the clarification tank and the soft water tank; a boiler is communicated between the soft water tank and a steam turbine; the steam turbine drives a generator; the steam turbine is sequentially communicated with a siphon well and a condenser drainage tank through a condenser; the condenser drainage tank is communicated with the boiler and the heat exchanger B; a heat exchanger D and a heating water tank are sequentially arranged along the flow direction of a heating return water pipeline of a heating circulating system; hot water in the condenser drainage tank is communicated with the soft water tank after heat exchange; and the heating return water returns to the heating water tank after heat exchange. According to the above structure, the circulating system using condenser drainage uses the heat energy of the low-pressure cylinder exhaust of the steam turbine to sequentially heat the water for producing soft water in the system and the return water of the heating system.