CN110686162B - Steam energy-saving system based on closed cycle and using method - Google Patents

Abstract

A steam energy-saving system based on closed cycle and a using method thereof comprise a steam generator (7) used for generating heat source steam, a material heat supply network device (8) communicated with the steam generator (7), a steam and water separation device group used for steam reflux arranged between the material heat supply network device (8) and the steam generator (7), a hydrophobic recovery device (3) used for condensed water reflux arranged between the material heat supply network device (8) and the steam generator (7), the heating of the materials is realized through the steam generator (7) and the material heating net device (8), through steam and water separator group, realized recycling the steam of discharging, through hydrophobic recovery unit (3), realized recycling the condensate water of discharging, no longer directly discharge steam and condensate water, consequently improved the utilization efficiency to heat energy.

Description

Steam energy-saving system based on closed cycle and using method

Technical Field

The invention relates to a steam energy-saving system and a using method, in particular to a steam energy-saving system based on a closed cycle and a using method.

Background

Steam is widely applied to various industries of textile, food and wood industry as a heating heat source, so a steam energy-saving system and a using method are important energy devices.

Disclosure of Invention

The object of the invention is a steam energy-saving system based on closed cycle,

the invention aims to provide a steam energy-saving system using method based on closed cycle.

In order to overcome the technical disadvantages, the invention aims to provide a steam energy-saving system based on a closed cycle and a using method thereof, thereby improving the utilization efficiency of heat energy.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a steam economizer system based on closed cycle, includes the steam generator that is used for producing heat source steam, sets up to the material heat supply network device with the steam generator intercommunication, is provided with steam and water separator group that is used for the steam reflux between material heat supply network device and steam generator, is provided with the hydrophobic recovery unit who is used for the condensate water backward flow between material heat supply network device and steam generator.

Owing to designed steam generator, material heat supply network device, steam and water separator group and hydrophobic recovery unit, through steam generator and material heat supply network device, realized the heating to the material, through steam and water separator group, realized recycling the steam that discharges, through hydrophobic recovery unit, realized recycling the condensate water that discharges, no longer directly discharge discharging discharge steam and condensate water, consequently improved the utilization efficiency to heat energy.

The invention designs that a steam generator, a material heating net device, a steam and water separation device set and a drainage recovery device are connected with each other in a mode of dredging gas and water flow ports.

The invention relates to a steam-water separation device group with a first steam-water separation device and a second steam-water separation device.

The invention designs that the device also comprises a first accessory device which is provided with a water pool, a water feeding pump and a flue gas heat exchanger, and the first accessory device is arranged on the steam generator.

The invention also relates to a second accessory device which is provided with a heat exchanger, a water treatment device and a sewage pool, wherein the second accessory device is arranged on the material heat supply network device.

The invention designs that the steam generator further comprises a third accessory device with a first check valve, a second check valve and a third check valve, and the third accessory device is arranged on the steam generator and the material heating network device.

The invention designs that the device also comprises a fourth accessory device which is provided with an electromagnetic valve, a controller, a first pressure sensor, a temperature sensor, a first water level sensor and a second water level sensor, and the fourth accessory device is arranged on the steam generator, the material heating net device, the first accessory device and the second accessory device.

The invention designs that a first steam and water separating device and a second steam and water separating device are respectively arranged between a material heat network device and a drain water recycling device, the second steam and water separating device and the drain water recycling device are arranged to be communicated with a steam generator, a first one-way valve is arranged between the second steam and water separating device and the steam generator, a second one-way valve is arranged between the drain water recycling device and the steam generator, a water pool, a water feeding pump and a flue gas heat exchanger are sequentially arranged between the drain water pool and the water pool, a water treatment device and a heat exchanger are sequentially arranged between the drain water pool and the material heat network device, a heat exchanger and a third one-way valve are sequentially arranged between the drain water pool and the material heat network device, an electromagnetic valve is arranged between an output port part of the steam generator and an input port part of the material heat network device, a first pressure sensor is arranged in the steam generator, and a temperature sensor is arranged in the material heat network device, a first water level sensor is arranged in the water pool, a second water level sensor is arranged in the sewage pool, and the first pressure sensor, the temperature sensor, the first water level sensor, the second water level sensor, the control port part of the electromagnetic valve, the control port part of the water feeding pump and the control port part of the water treatment device are respectively connected with the controller.

The invention designs that the first steam and water separation device is arranged as a single-tank steam and water separation device, the input port part of the first steam and water separation device is respectively connected with the input port part of the second steam and water separation device and the tail end output port part of the material heat supply network device, and the condensed water output port part of the first steam and water separation device is connected with the input port part of the drainage recovery device.

The invention designs that the second steam and water separation device comprises a first tank body, a second tank body, a first through pipe, a second through pipe, a third pipe, a base, an input pipe, an output pipe, a liquid level meter and a second pressure sensor, wherein the first tank body and the second tank body are respectively provided with the base, the first through pipe, the second through pipe and the third pipe are respectively arranged between the first tank body and the second tank body, the first tank body is respectively provided with the input pipe and a first steam venting port part, the second tank body is respectively provided with the output pipe, the liquid level meter, the second pressure sensor and a second steam venting port part, the input pipe is respectively connected with the input port part of the first steam and water separation device and the tail end output port part of the material heating network device, and the output pipe is connected with the input port part of the water drainage recovery device.

The invention designs that a first tank body and a second tank body are respectively provided with an oval tank body, the lower end surface part of the first tank body and the lower end surface part of the second tank body are respectively connected with a base, the upper end surface part of the first tank body is provided with a first steam-venting port part, the upper end surface part of the second tank body is provided with a second steam-venting port part, the side surface part of the first tank body is respectively connected with the port part of a first through pipe, the port part of a second through pipe, the port part of a third through pipe and a liquid level meter, the side surface part of the second tank body is respectively connected with the port part of the first through pipe, the port part of the second through pipe and the port part of the third through pipe, the lower end part of the side surface of the first tank body is connected with an input pipe, the lower end part of the side surface of the second tank body is connected with an output pipe, the upper end surface part of the second tank body is connected with a second pressure sensor, and the first steam-venting port part and the second steam-venting port part are respectively provided with a round threaded hole .

The invention designs that a first through pipe, a second through pipe and a third through pipe are arranged to be circular tubular bodies, and mutually connected flange plates are respectively arranged on the first through pipe, the second through pipe and the third through pipe, one port part of the first through pipe is arranged to be connected with the upper end part of the side surface of a first tank body, the other port part of the first through pipe is arranged to be connected with the upper end part of the side surface of a second tank body, one port part of the second through pipe is arranged to be connected with the middle part of the side surface of the first tank body, the other port part of the second through pipe is arranged to be connected with the middle part of the side surface of the second tank body, one port part of the third through pipe is arranged to be connected with the lower end part of the side surface of the first tank body, and the other port part of the third through pipe is arranged to be connected with the lower end part of the side surface of the second tank body.

The invention designs that the inner port part of the input pipe is connected with the first tank body, the outer port part of the input pipe is provided with a flange, the inner port part of the output pipe is connected with the second tank body, the outer port part of the output pipe is provided with a flange, and the input pipe and the output pipe are respectively arranged into circular tubular bodies.

The invention provides that the level gauge is arranged as a level difference gauge and the port portions of the level gauge are respectively arranged to be connected with the second tank.

The invention designs that the base is arranged into a splayed plate-shaped body, and the end surface part of the upper end of the base is respectively connected with the first tank body and the second tank body.

The invention designs that the ratio of the diameter of the first tank to the diameter of the second tank is set to be 0.55-0.72:1, the ratio of the distance between the port part of the third pipe and the input pipe to the diameter of the first tank is set to be 0.35-0.46:1, the ratio of the distance between the port part of the third pipe and the output pipe to the diameter of the second tank is set to be 0.55-0.66:1, the ratio of the diameter of the first pipe to the diameter of the first tank is set to be 0.28-0.32:1, the ratio of the diameter of the second pipe to the diameter of the first tank is set to be 0.22-0.30:1, and the ratio of the diameter of the third pipe to the diameter of the first tank is set to be 0.15-0.19: 1.

The invention designs that the drainage recovery device is a double-tank drainage device, the input port part of the primary tank part of the drainage recovery device is respectively connected with the output port part of the first steam-water separation device and the output port part of the second steam-water separation device, the bottom output port part of the primary tank part of the drainage recovery device is connected with the input port part of the steam generator through the second one-way valve, the input port part of the final tank part of the drainage recovery device is connected with the side output port part of the primary tank part of the drainage recovery device, the output port part of the final tank part of the drainage recovery device is connected with the water tank, and the primary tank part and the final tank part are respectively arranged into an elliptical tank body.

The invention designs that the pool is arranged into a rectangular box-shaped body, the inlet end and the outlet end of the pool are respectively connected with the outlet end and the outlet end of the drainage recovery device and the outlet end of the water treatment device, the outlet end and the outlet end of the pool are connected with the inlet end and the outlet end of the water feeding pump, and a first water level sensor is arranged in the pool.

The invention designs that the outlet of the water feeding pump is connected with the inlet of the material inlet of the flue gas heat exchanger and the inlet of the water feeding pump is arranged in the water pool.

The invention designs that the flue gas heat exchanger is arranged as a flue gas water heat exchanger, the material input end opening part of the flue gas heat exchanger is arranged to be connected with a water feeding pump, the material output end opening part of the flue gas heat exchanger is arranged to be connected with a steam generator, and the heat exchange pipe of the flue gas heat exchanger is arranged in the flue of the flue gas heat exchanger.

The invention designs that a steam generator is arranged as a gas boiler, a flue gas heat exchanger is arranged in a flue of the steam generator, an output port of the steam generator is arranged to be connected with an input port of an electromagnetic valve, an output port of the steam generator is arranged to be connected with an output port of a second steam and water separation device through a first one-way valve, a water inlet backflow port of the steam generator is arranged to be connected with the flue gas heat exchanger, a water inlet backflow port of the steam generator is arranged to be connected with a drain water recovery device through a second one-way valve, and a first pressure sensor is arranged at the input port of the steam generator.

The invention designs that the material heat supply network device is arranged as a drying room, the input port part of the material heat supply network device is connected with the output port part of the electromagnetic valve, the steam port part of the tail pipeline of the material heat supply network device is connected with the heat exchange input port part of the heat exchanger through a third one-way valve, the discharge port part of the tail pipeline of the material heat supply network device is respectively connected with the input port part of the first steam and water separation device and the input port part of the second steam and water separation device, and the material heat supply network device is internally provided with a temperature sensor.

The invention designs that the heat exchanger is arranged as a heat exchanger, the mouth part of the heat exchange input end of the heat exchanger is arranged to be connected with the material heat supply network device through a third one-way valve, the mouth part of the heat exchange output end of the heat exchanger is arranged to be connected with a sewage pool, the mouth part of the material input end of the heat exchanger is arranged to be connected with a water treatment device, and the mouth part of the material output end of the heat exchanger is arranged to be connected with the water pool.

The invention designs that the water treatment device is arranged as a steam-floating sewage treatment device, the inlet port of the input end of the water treatment device is arranged in the sewage pool, and the outlet port of the output end of the water treatment device is connected with the heat exchanger.

The invention designs that the sewage pool is a rectangular box-shaped body, a second water level sensor is arranged in the sewage pool, and the sewage pool is respectively communicated with the heat exchanger and the water processor.

The invention designs that the input port part of the first one-way valve is connected with the second steam and water separation device, the output port part of the first one-way valve is connected with the electromagnetic valve, the input port part of the second one-way valve is connected with the drain recovery device, the output port part of the second one-way valve is connected with the steam generator, the input port part of the third one-way valve is connected with the material heat supply network device, and the output port part of the third one-way valve is connected with the heat exchanger.

The invention designs that the controller is set as a PLC controller, the input port part of the controller is respectively set to be connected with the first pressure sensor, the temperature sensor, the first water level sensor and the second water level sensor, and the output port part of the controller is respectively set to be connected with the control port part of the electromagnetic valve, the control port part of the water feeding pump and the control port part of the water treatment device.

The invention designs that a steam generator, a material heat supply network device, a first steam and water separation device, a second steam and water separation device and a drainage recovery device are arranged to be distributed according to the mode of steam and condensed water heat source backflow, the steam generator, the material heat supply network device, a pool, a water feeding pump, a flue gas heat exchanger, a water treatment device and a sewage pool are arranged to be distributed according to the mode of water closed circulation, the first steam and water separation device, the second steam and water separation device, the drainage recovery device, the pool, the water feeding pump, the flue gas heat exchanger, the steam generator, the material heat supply network device, the heat exchanger, the water treatment device, the sewage pool, a first check valve, a second check valve, a third check valve, a solenoid valve, a controller, a first pressure sensor, a temperature sensor, a first water level sensor and a second water level sensor are arranged to be distributed according to the mode of automatic operation, the primary tank portion is configured to be coupled to the output pipe.

The invention designs a using method of a steam energy-saving system based on closed cycle, which comprises the following steps: the steam generator works to output heat source steam, the steam enters the material heat supply network device through the electromagnetic valve and is used as a heat source in the material heat supply network device, the steam with impurities discharged from the steam port part of the tail pipe of the material heat supply network device enters the heat exchange port of the heat exchanger to form condensed water containing the impurities in the heat exchanger, the condensed water containing the impurities is injected into the sewage pool, the mixture containing the steam and the water is output from the discharge port part of the tail pipe of the material heat supply network device and respectively enters the first steam and water separation device and the first tank body through the input pipe, the first steam and water separation device is used for separating the condensed water in the mixture containing the steam and the water, the steam in the mixture containing the steam and the water is subjected to first separation in the first tank body, and the mixture containing the steam and the water which enters the second tank body through the first through pipe, the second through pipe and the third pipe is subjected to second steam separation, the steam in the first tank body is communicated with the output port of the steam generator through the first steam-discharging port part and the steam in the second tank body through the second steam-discharging port part, the condensed water in the first tank body and the condensed water in the second tank body are input into the primary tank part through an output pipe, the condensed water in the primary tank part flows back into the steam generator under the action of a high-temperature pump of the hydrophobic recovery device, the mixture containing the steam and the water in the primary tank part is input into the final tank part to form the condensed water in the final tank part, the condensed water in the final tank part is input into the water pool under the action of the high-temperature pump of the hydrophobic recovery device, the condensed water in the water pool is input into the flue gas heat exchanger through the water feeding pump to absorb the waste heat of a flue of the steam generator, the condensed water in the flue gas heat exchanger flows back into the steam generator again, and the condensed water in the sewage pool is purified through a water processor, inputting the steam into a heat exchanger, absorbing the waste heat discharged by a steam port part of a tail pipe of a material heating network device, inputting the condensed water in the heat exchanger into a water pool again, preventing the steam backflow between a second steam and water separation device and a steam generator through a first one-way valve, preventing the condensed water backflow between a drainage recovery device and the steam generator through a second one-way valve, preventing the steam backflow between the material heating network device and the heat exchanger through a third one-way valve, picking up a steam pressure value signal in the steam generator through a first pressure sensor, picking up a temperature value signal in the material heating network device through a temperature sensor, controlling the opening and closing amount of an electromagnetic valve through a controller, picking up a condensed water depth value signal in the water pool through a first water level sensor, controlling the working state of a water feeding pump through the controller, and controlling the working state of the water feeding pump through a second water level sensor, and (3) picking up a depth value signal of the condensed water in the sewage pool, controlling the working state of the water treatment device through the controller, monitoring the depth value of the condensed water in the second tank body through the liquid level meter, and monitoring the pressure value of the steam in the second tank body through the second pressure sensor.

In the technical scheme, a drainage recovery device, a steam generator and a material heating network device are basic components and are also necessary technical characteristics of the invention, a first steam-water separation device, a second steam-water separation device, a water tank, a water feeding pump, a flue gas heat exchanger, a water treatment device, a sewage tank, a first check valve, a second check valve, a third check valve, an electromagnetic valve, a controller and a first pressure sensor, the temperature sensor, the first water level sensor and the second water level sensor are functional components and are the characteristics for realizing other technical effects of the invention, and the design of the technical characteristics of the first tank body, the second tank body, the first through pipe, the second through pipe, the third through pipe, the base, the input pipe, the output pipe, the liquid level meter, the second pressure sensor, the first steam venting port part, the second steam venting port part, the primary tank part and the final tank part is the technical characteristics which accord with the patent laws and detailed rules for implementing the same.

In the technical scheme, a steam generator for dredging gas and water flow ports, a material heating network device, a steam and water separation device set and a hydrophobic recovery device are important technical characteristics, and have novelty, creativity and practicability in the technical field of a steam energy-saving system and a using method based on closed circulation, and terms in the technical scheme can be explained and understood by patent documents in the technical field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Figure 1 is a schematic diagram of a closed cycle based steam economizer system of the present invention,

figure 2 is a schematic diagram of the second steam and water separation device 2,

a first steam and water separating device-1, a second steam and water separating device-2, a drain water recycling device-3, a water pool-4, a water feeding pump-5, a flue gas heat exchanger-6, a steam generator-7, a material heat net device-8, a heat exchanger-9, a water processor-91, a sewage pool-92, a first one-way valve-101, a second one-way valve-102, a third one-way valve-103, an electromagnetic valve-93, a controller-94, a first pressure sensor-95, a temperature sensor-96, a first water level sensor-97, a second water level sensor-98, a first tank-21, a second tank-22, a first through pipe-23, a second through pipe-24, a third three-way pipe-25, a base-26, an input pipe-27, a water level sensor-98, a first water level sensor, a second tank-21, a second tank-22, a first through pipe-23, a second through pipe-24, a third pipe-25, a base-26, an input pipe-27, a water level sensor, a water heater, a water level sensor, a water tank, a water heater, a water tank, a water heater, a water level sensor, a water heater, a water tank, a water heater, a water tank, a water level sensor, a water heater, a water tank, a water heater, a water tank, a water heater, An output pipe-28, a liquid level meter-29, a second pressure sensor-20, a first steam-venting port part-210, a second steam-venting port part-220, a primary tank part-31 and a final tank part-32.

Detailed Description

Terms such as "having," "including," and "comprising," as used with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof, in accordance with the examination guidelines.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and further, unless otherwise specified, the equipments and materials used in the following examples are commercially available, and if the processing conditions are not explicitly specified, please refer to the commercially available product specifications or follow the conventional method in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A steam energy-saving system based on closed cycle is disclosed, wherein FIG. 1 is one of the first embodiments of the invention, the embodiments are specifically described with reference to the accompanying drawings, and the system comprises a first steam and water separation device 1, a second steam and water separation device 2, a drain recovery device 3, a water tank 4, a water feeding pump 5, a flue gas heat exchanger 6, a steam generator 7, a material heat supply network device 8, a heat exchanger 9, a water treatment device 91, a sewage tank 92, a first check valve 101, a second check valve 102, a third check valve 103, an electromagnetic valve 93, a controller 94, a first pressure sensor 95, a temperature sensor 96, a first water level sensor 97 and a second water level sensor 98, the first steam and water separation device 1 and the second steam and water separation device 2 are respectively arranged between the material heat supply network device 8 and the drain recovery device 3, and the second steam and water separation device 2 and the drain recovery device 3 are arranged to be communicated with the steam generator 7, a first check valve 101 is arranged between the second steam and water separating device 2 and the steam generator 7, a second check valve 102 is arranged between the drain recovering device 3 and the steam generator 7, a water basin 4, a water feeding pump 5 and a flue gas heat exchanger 6 are sequentially arranged between the drain recovering device 3 and the steam generator 7, a water treatment device 91 and a heat exchanger 9 are sequentially arranged between the sewage basin 92 and the water basin 4, a heat exchanger 9 and a third check valve 103 are sequentially arranged between the sewage basin 92 and the material heat network device 8, an electromagnetic valve 93 is arranged between an output port part of the steam generator 7 and an input port part of the material heat network device 8, a first pressure sensor 95 is arranged in the steam generator 7 and a temperature sensor 96 is arranged in the material heat network device 8, a first water level sensor 97 is arranged in the water basin 4 and a second water level sensor 98 is arranged in the sewage basin 92, the first pressure sensor 95, the temperature sensor 96, the first water level sensor 97, the second water level sensor 98, the control port portion of the electromagnetic valve 93, the control port portion of the water feed pump 5, and the control port portion of the water treatment device 91 are respectively provided to be connected to the controller 94.

In this embodiment, the first steam and water separator 1 is set as a single-tank steam and water separator and the input port of the first steam and water separator 1 is respectively set to be coupled with the input port of the second steam and water separator 2 and the tail end output port of the material heat supply network device 8, and the condensed water output port of the first steam and water separator 1 is set to be coupled with the input port of the drain water recovery device 3.

Through first steam and water separator 1, formed the support tie point to second steam and water separator 2, hydrophobic recovery unit 3 and material heat supply network device 8, by first steam and water separator 1, realized being connected with second steam and water separator 2, realized being connected with hydrophobic recovery unit 3, realized being connected with material heat supply network device 8, its technical aim at: the technical scheme of the first steam and water separation device 1 is that Chinese patent is applied for the condensation water separation of the mixture of water and steam at the tail end output port of the material heat supply network device 8, and the patent numbers are as follows: 201720645537.2.

in this embodiment, the second steam-water separator 2 is configured to include a first tank 21, a second tank 22, a first pipe 23, a second pipe 24, a third pipe 25, a base 26, an input pipe 27, an output pipe 28, a liquid level meter 29 and a second pressure sensor 20, and the first tank 21 and the second tank 22 are respectively provided with the base 26, a first through pipe 23, a second through pipe 24 and a third through pipe 25 are respectively arranged between the first tank 21 and the second tank 22, an input pipe 27 and a first steam venting port part 210 are respectively arranged on the first tank 21, an output pipe 28, a liquid level meter 29, a second pressure sensor 20 and a second steam-discharging port part 220 are respectively arranged on the second tank body 22, an input pipe 27 is respectively arranged to be connected with an input port part of the first steam-water separation device 1 and an output port part of the tail end of the material heat supply network device 8, and the output pipe 28 is arranged to be connected with an input port part of the hydrophobic recovery device 3.

Through second steam and water separator 2, formed the support tie point to first steam and water separator 1, hydrophobic recovery unit 3 and material heat supply network device 8, by input tube 27, realized being connected with first steam and water separator 1, realized being connected with material heat supply network device 8, by output tube 28, realized being connected with hydrophobic recovery unit 3, by first jar of body 21, the second jar of body 22, first siphunculus 23, second siphunculus 24, the third tee pipe 25, first steam-venting port portion 210, second steam-venting port portion 220, water and steam separation processing has been realized, its technical aim at: used for carrying out steam separation on the water and steam mixture at the tail end output port part of the material heating net device 8.

In the present embodiment, the first tank 21 and the second tank 22 are respectively provided as an elliptical tank and the lower end surface portion of the first tank 21 and the lower end surface portion of the second tank 22 are respectively provided to be coupled to the base 26, the upper end surface portion of the first tank 21 is provided with a first steam vent port portion 210 and the upper end surface portion of the second tank 22 is provided with a second steam vent port portion 220, the side surface portions of the first tank 21 are respectively provided to be coupled to the port portion of the first pipe 23, the port portion of the second pipe 24, the port portion of the third pipe 25 and the level gauge 29 and the side surface portions of the second tank 22 are respectively provided to be coupled to the port portion of the first pipe 23, the port portion of the second pipe 24 and the port portion of the third pipe 25, the lower end portion of the side surface of the first tank 21 is provided to be coupled to the input pipe 27 and the lower end portion of the side surface of the second tank 22 is provided to be coupled to the output pipe 28, an upper end surface portion of the second tank 22 is provided to be coupled with the second pressure sensor 20 and the first and second steam discharge port portions 210 and 220 are provided as circular screw hole-shaped bodies, respectively.

Through first jar of body 21 and second jar of body 22, formed first siphunculus 23, second siphunculus 24, third siphunculus 25, base 26, input tube 27, output tube 28, level gauge 29 and second pressure sensor 20's support connection point, by first jar of body 21 and second jar of body 22, realized being connected with first siphunculus 23, realized being connected with second siphunculus 24, realized being connected with third siphunculus 25, realized being connected with base 26, realized being connected with input tube 27, realized being connected with output tube 28, realized being connected with level gauge 29, realized being connected with second pressure sensor 20, its technical aim at: for use as a relief space for water and steam separation.

In the present embodiment, the first through pipe 23, the second through pipe 24 and the third through pipe 25 are provided as circular pipes and flanges connected to each other are provided on the first through pipe 23, the second through pipe 24 and the third through pipe 25, respectively, one of the port portions of the first through pipe 23 is provided to be coupled to an upper end portion of a side surface of the first tank 21 and the other port portion of the first through pipe 23 is provided to be coupled to an upper end portion of a side surface of the second tank 22, one of the port portions of the second through pipe 24 is provided to be coupled to an intermediate portion of a side surface of the first tank 21 and the other port portion of the second through pipe 24 is provided to be coupled to an intermediate portion of a side surface of the second tank 22, one of the port portions of the third through pipe 25 is provided to be coupled to a lower end portion of a side surface of the first tank 21 and the other port portion of the third through pipe 25 is provided to be coupled to a lower end portion of a side surface of the second tank 22.

Through first siphunculus 23, second siphunculus 24 and third tee pipe 25, formed the support tie point to first jar of body 21 and second jar of body 22, by first siphunculus 23, second siphunculus 24 and third tee pipe 25, realized being connected with first jar of body 21, realized being connected with second jar of body 22, its technical aim at: for use as a stepped passage in the separation of water and steam.

In this embodiment, the inner port portion of the inlet pipe 27 is configured to be coupled to the first tank 21 and a flange is provided at the outer port portion of the inlet pipe 27, the inner port portion of the outlet pipe 28 is configured to be coupled to the second tank 22 and a flange is provided at the outer port portion of the outlet pipe 28, and the inlet pipe 27 and the outlet pipe 28 are respectively configured as circular tubular bodies.

Through input tube 27 and output tube 28, formed the support tie point to first jar of body 21 and second jar of body 22, by input tube 27 and output tube 28, realized being connected with first jar of body 21, realized being connected with second jar of body 22, its technical objective lies in: for feeding the water and steam mixture to the first tank 21 and for feeding the water to the second tank 22.

In the present embodiment, the level meters 29 are provided as liquid level difference meters and port portions of the level meters 29 are respectively provided to be coupled with the second tank 22.

Through level gauge 29, formed the support connection point to the second jar of body 22, by level gauge 29, realized being connected with the second jar of body 22, its technical aim at: for indicating the amount of water in the second tank 22.

In the present embodiment, the base 26 is provided as a splayed plate-like body and the upper end surface portions of the base 26 are provided to be coupled with the first tank 21 and the second tank 22, respectively.

Through base 26, formed the support tie point to first jar of body 21 and second jar of body 22, by base 26, realized being connected with first jar of body 21, realized being connected with second jar of body 22, its technical aim at: for serving as a support for the first and second tanks 21 and 22.

In this embodiment, the ratio between the diameter of the first tank 21 and the diameter of the second tank 22 is set to 0.55-0.72:1, the ratio between the distance between the port of the third pipe 25 and the inlet pipe 27 and the diameter of the first tank 21 is set to 0.35-0.46:1, the ratio between the distance between the port of the third pipe 25 and the outlet pipe 28 and the diameter of the second tank 22 is set to 0.55-0.66:1, the ratio between the diameter of the first pipe 23 and the diameter of the first tank 21 is set to 0.28-0.32:1, the ratio between the diameter of the second pipe 24 and the diameter of the first tank 21 is set to 0.22-0.30:1, and the ratio between the diameter of the third pipe 25 and the diameter of the first tank 21 is set to 0.15-0.19: 1.

The first tank 21, the second tank 22, the first through pipe 23, the second through pipe 24, the third through pipe 25, the input pipe 27 and the output pipe 28 realize the quick release of the separation of water and steam.

In the present embodiment, the drain recovery apparatus 3 is provided as a double-tank drain apparatus and the input port portion of the primary tank portion 31 of the drain recovery apparatus 3 is respectively provided to be coupled with the output port portion of the first steam-and-water separation apparatus 1 and the output port portion of the second steam-and-water separation apparatus 2, the bottom output port portion of the primary tank portion 31 of the drain recovery apparatus 3 is provided to be coupled with the input port portion of the steam generator 7 through the second check valve 102 and the input port portion of the final tank portion 32 of the drain recovery apparatus 3 is provided to be coupled with the side output port portion of the primary tank portion 31 of the drain recovery apparatus 3, the output port portion of the final tank portion 32 of the drain recovery apparatus 3 is provided to be coupled with the water sump 4 and the primary tank portion 31 and the final tank portion 32 are respectively provided as elliptical tank bodies.

Through hydrophobic recovery unit 3, formed the support tie point to first steam and water separator 1, second steam and water separator 2, pond 4 and steam generator 7, by elementary jar portion 31, realized being connected with first steam and water separator 1, realized being connected with second steam and water separator 2, realized being connected with steam generator 7, by final stage jar portion 32, realized being connected with pond 4, its technical aim at: the technical scheme of the drainage recovery device 3 is that Chinese patents are applied for dredging condensed water generated by the first steam and water separation device 1 and the second steam and water separation device 2, and the patent numbers are as follows: 201120437964.4.

in the present embodiment, the pool 4 is provided as a rectangular box-shaped body and the input port portion of the pool 4 is respectively provided to be coupled with the output port portion of the drain recovery apparatus 3 and the output port portion of the water treatment apparatus 91, the output port portion of the pool 4 is provided to be coupled with the input port portion of the water feed pump 5 and the first water level sensor 97 is provided in the pool 4.

Through pond 4, formed the support tie point to hydrophobic recovery unit 3, last water pump 5, water treatment ware 91 and first level sensor 97, by pond 4, realized being connected with hydrophobic recovery unit 3, realized being connected with last water pump 5, realized being connected with water treatment ware 91, realized being connected with first level sensor 97, its technical aim at: for temporary storage of the condensed water.

In this embodiment, the output port of the water feeding pump 5 is connected to the material input port of the flue gas heat exchanger 6 and the input port of the water feeding pump 5 is disposed in the water tank 4.

Through water-feeding pump 5, formed the support tie point to pond 4 and gas heater 6, by water-feeding pump 5, realized being connected with pond 4, realized being connected with gas heater 6, its technical aim at: for feeding the condensed water into the flue gas heat exchanger 6.

In this embodiment, the flue gas heat exchanger 6 is set as a flue gas water heat exchanger and the material input port of the flue gas heat exchanger 6 is set to be connected with the upper water pump 5, the material output port of the flue gas heat exchanger 6 is set to be connected with the steam generator 7 and the heat exchange pipe of the flue gas heat exchanger 6 is set in the flue of the flue gas heat exchanger 6.

Through gas heater 6, formed the support tie point to last water pump 5 and steam generator 7, by gas heater 6, realized being connected with last water pump 5, realized being connected with steam generator 7, its technical aim at: for absorbing residual heat from the flue of the steam generator 7.

In the present embodiment, the steam generator 7 is configured as a gas boiler and is provided with a flue gas heat exchanger 6 in a flue of the steam generator 7, an output port portion of the steam generator 7 is configured to be coupled with an input port portion of the solenoid valve 93, an output port portion of the steam generator 7 is configured to be coupled with an output port portion of the second steam-water separation device 2 through the first check valve 101 and a water inlet/return port portion of the steam generator 7 is configured to be coupled with the flue gas heat exchanger 6, the water inlet/return port portion of the steam generator 7 is configured to be coupled with the water drain recovery device 3 through the second check valve 102 and is provided with the first pressure sensor 95 at the input port portion of the steam generator 7.

Through steam generator 7, formed the support tie point to second steam and water separator 2, hydrophobic recovery unit 3, gas heater 6, solenoid valve 93 and steam generator 7, by steam generator 7, realized being connected with hydrophobic recovery unit 3, realized being connected with gas heater 6, realized being connected with second steam and water separator 2, realized being connected with solenoid valve 93, realized being connected with first pressure sensor 95, its technical aim at: for generating heating steam for the material heat supply network device 8.

In the present embodiment, the material heat supply network device 8 is set as a drying room and the input port portion of the material heat supply network device 8 is set to be coupled with the output port portion of the electromagnetic valve 93, the steam port portion of the tail pipe of the material heat supply network device 8 is set to be coupled with the heat exchange input port portion of the heat exchanger 9 through the third check valve 103, the discharge port portions of the tail pipe of the material heat supply network device 8 are respectively set to be coupled with the input port portions of the first steam and water separation device 1 and the input port portion of the second steam and water separation device 2 and the temperature sensor 96 is provided in the material heat supply network device 8.

Through material heat supply network device 8, formed solenoid valve 93, heat exchanger 9, temperature sensor 96, first steam and water separator 1 and second steam and water separator 2's support tie point, by material heat supply network device 8, realized being connected with solenoid valve 93, realized being connected with heat exchanger 9, realized being connected with temperature sensor 96, realized being connected with first steam and water separator 1, realized being connected with second steam and water separator 2, its technical aim lies in: used for drying other substances.

In the present embodiment, the heat exchanger 9 is configured as a heat exchanger and the heat exchange input port portion of the heat exchanger 9 is configured to be coupled with the material heat supply network device 8 through the third check valve 103, the heat exchange output port portion of the heat exchanger 9 is configured to be coupled with the sewage tank 92 and the material input port portion of the heat exchanger 9 is configured to be coupled with the water treatment device 91, and the material output port portion of the heat exchanger 9 is configured to be coupled with the water tank 4.

Through heat exchanger 9, formed the support tie point to material heat supply network device 8, effluent water sump 92, water treatment ware 91 and second steam and water separator 2, by heat exchanger 9, realized being connected with material heat supply network device 8, realized being connected with effluent water sump 92, realized being connected with water treatment ware 91, realized being connected with pond 4, its technical aim at: for absorbing the heat of the discharged steam of the material heat supply network device 8.

In the present embodiment, the water treatment device 91 is provided as a steam-floating sewage treatment apparatus and the inlet port portion of the water treatment device 91 is provided in the sewage tank 92, and the outlet port portion of the water treatment device 91 is provided to be coupled to the heat exchanger 9.

Through water treatment ware 91, formed the support tie point to heat exchanger 9 and effluent water sump 92, by water treatment ware 91, realized being connected with heat exchanger 9, realized being connected with effluent water sump 92, its technical aim at: for purifying the condensate from the sump 92.

In the present embodiment, the wastewater tank 92 is provided as a rectangular box-shaped body and a second water level sensor 98 is provided in the wastewater tank 92, and the wastewater tank 92 is provided in communication with the heat exchanger 9 and the water treater 91, respectively.

Through the effluent water sump 92, formed the support tie point to heat exchanger 9, water treatment ware 91 and second level sensor 98, by effluent water sump 92, realized being connected with heat exchanger 9, realized being connected with water treatment ware 91, realized being connected with second level sensor 98, its technical aim at: for storing the condensed water formed by the discharged steam of the material heating network device 8.

In the present embodiment, the input port portion of the first check valve 101 is provided to be coupled with the second steam and water separator 2 and the output port portion of the first check valve 101 is provided to be coupled with the solenoid valve 93, the input port portion of the second check valve 102 is provided to be coupled with the drain water recovery device 3 and the output port portion of the second check valve 102 is provided to be coupled with the steam generator 7, the input port portion of the third check valve 103 is provided to be coupled with the material heat net device 8 and the output port portion of the third check valve 103 is provided to be coupled with the heat exchanger 9.

Through first check valve 101, second check valve 102 and third check valve 103, second steam and water separator 2, solenoid valve 93, hydrophobic recovery unit 3, steam generator 7, the support tie point of material heat supply network device 8 and heat exchanger 9 has been formed, by first check valve 101, realized being connected with second steam and water separator 2, realized being connected with solenoid valve 93, by second check valve 102, realized being connected with hydrophobic recovery unit 3, realized being connected with steam generator 7, by third check valve 103, realized being connected with material heat supply network device 8, realized being connected with heat exchanger 9, its technical aim at: for use as a one-way flow valve.

In the present embodiment, the controller 94 is a PLC controller, the input ports of the controller 94 are connected to the first pressure sensor 95, the temperature sensor 96, the first water level sensor 97, and the second water level sensor 98, and the output ports of the controller 94 are connected to the control port of the solenoid valve 93, the control port of the water feed pump 5, and the control port of the water treatment device 91.

Through solenoid valve 93, controller 94, first pressure sensor 95, temperature sensor 96, first level sensor 97 and second level sensor 98, the support tie point to pond 4, water feeding pump 5, steam generator 7, material heat supply network device 8, heat exchanger 9, water treatment ware 91 and effluent water sump 92 has been formed, by first level sensor 97, the connection with pond 4 has been realized, by first pressure sensor 95, the connection with steam generator 7 has been realized, by solenoid valve 93 and temperature sensor 96, the connection with material heat supply network device 8 has been realized, by second level sensor 98, the connection with effluent water sump 92 has been realized, by controller 94, the connection with water feeding pump 5 has been realized, the connection with water treatment ware 91 has been realized, its technical aim at: for automated control of temperature, pressure and water level.

In the present embodiment, the steam generator 7 and the material heat supply network device 8 are arranged to be distributed in such a manner that the steam and the condensed water heat source flow back, and the steam generator 7 and the material heat supply network device 8 and the tank 4, the water feed pump 5, the flue gas heat exchanger 6, the heat exchanger 9, the water treatment device 91, and the sewage tank 92 are arranged to be distributed in such a manner that the steam and the condensed water heat source flow back, and the first steam and water separation device 1, the second steam and water separation device 2, the water drain recovery device 3, the tank 4, the water feed pump 5, the flue gas heat exchanger 6, the steam generator 7, the material heat supply network device 8, the heat exchanger 9, the water treatment device 91, the sewage tank 92, the first check valve 101, the second check valve 102, the third check valve 103, the electromagnetic valve 93, the controller 94, the first pressure sensor 95, the temperature sensor 96, the second check valve 102, the electromagnetic valve 93, the electromagnetic valve 92, and the electromagnetic valve 93, The first water level sensor 97 and the second water level sensor 98 are arranged to be distributed in an automated operation, and the primary tank portion 31 is arranged to be coupled with the output pipe 28.

In the second embodiment of the present invention, the ratio between the diameter of the first tank 21 and the diameter of the second tank 22 is set to 0.55:1, the ratio between the distance between the port of the third pipe 25 and the inlet pipe 27 and the diameter of the first tank 21 is set to 0.35:1, the ratio between the distance between the port of the third pipe 25 and the outlet pipe 28 and the diameter of the second tank 22 is set to 0.55:1, the ratio between the diameter of the first pipe 23 and the diameter of the first tank 21 is set to 0.28:1, the ratio between the diameter of the second pipe 24 and the diameter of the first tank 21 is set to 0.22:1, and the ratio between the diameter of the third pipe 25 and the diameter of the first tank 21 is set to 0.15: 1.

In the third embodiment of the present invention, the ratio between the diameter of the first tank 21 and the diameter of the second tank 22 is set to 0.72:1, the ratio between the distance between the port of the third pipe 25 and the inlet pipe 27 and the diameter of the first tank 21 is set to 0.46:1, the ratio between the distance between the port of the third pipe 25 and the outlet pipe 28 and the diameter of the second tank 22 is set to 0.66:1, the ratio between the diameter of the first pipe 23 and the diameter of the first tank 21 is set to 0.32:1, the ratio between the diameter of the second pipe 24 and the diameter of the first tank 21 is set to 0.30:1, and the ratio between the diameter of the third pipe 25 and the diameter of the first tank 21 is set to 0.19: 1.

Fourth of the first embodiment of the present invention, the ratio between the diameter of the first tank 21 and the diameter of the second tank 22 is set to 0.63:1, the ratio between the distance between the port of the third pipe 25 and the inlet pipe 27 and the diameter of the first tank 21 is set to 0.40:1, the ratio between the distance between the port of the third pipe 25 and the outlet pipe 28 and the diameter of the second tank 22 is set to 0.60:1, the ratio between the diameter of the first pipe 23 and the diameter of the first tank 21 is set to 0.30:1, the ratio between the diameter of the second pipe 24 and the diameter of the first tank 21 is set to 0.26:1, and the ratio between the diameter of the third pipe 25 and the diameter of the first tank 21 is set to 0.17: 1.

In a second embodiment of the invention, the steam generator 7, the material heat net device 8, the steam and water separation device set and the drain recovery device 3 are interconnected in a manner that unblocks the gas and water flow ports.

In the present embodiment, there is a steam-water separation device group of the first steam-water separation device 1 and the second steam-water separation device 2.

In this embodiment, a first accessory device with a water basin 4, a water feed pump 5 and a flue gas heat exchanger 6 is also included and is arranged on the steam generator 7.

In this embodiment, a second accessory device having the heat exchanger 9, the water treatment device 91 and the wastewater tank 92 is further included and is provided on the material heating network device 8.

In this embodiment, a third accessory device with a first non return valve 101, a second non return valve 102 and a third non return valve 103 is also included and provided on the steam generator 7 and the material heating network device 8.

In this embodiment, a fourth accessory device having a solenoid valve 93, a controller 94, a first pressure sensor 95, a temperature sensor 96, a first water level sensor 97 and a second water level sensor 98 is further included and provided on the steam generator 7, the material heating grid device 8, the first accessory device and the second accessory device.

A second embodiment of the invention is based on the first embodiment,

the invention is further described below with reference to the following examples, which are intended to illustrate the invention but not to limit it further.

A method for using a steam energy-saving system based on closed cycle comprises the following steps: the steam generator 7 works to output heat source steam, the steam enters the material heat supply network device 8 through the electromagnetic valve 93 and is used as a heat source in the material heat supply network device 8, the steam with impurities discharged from the steam port part of the tail pipe of the material heat supply network device 8 enters the heat exchange port of the heat exchanger 9, condensed water containing impurities is formed in the heat exchanger 9 and is injected into the sewage pool 92, the mixture containing steam and water is output from the discharge port part of the tail pipe of the material heat supply network device 8 and respectively enters the first steam and water separation device 1 and the first tank body 21 through the input pipe 27, the first steam and water separation device 1 is used for separating the condensed water in the mixture containing steam and water, the steam in the mixture containing steam and water is subjected to first separation in the first tank body 21 and passes through the first through pipe 23, The mixture containing steam and water entering the second tank 22 through the second through pipe 24 and the third pipe 25 is subjected to a second steam separation, the steam in the first tank 21 is communicated with the output port of the steam generator 7 through the first steam-dredging port 210 and the steam in the second tank 22 through the second steam-dredging port 220, the condensed water in the first tank 21 and the condensed water in the second tank 22 are input into the primary tank 31 through the output pipe 28, the condensed water in the primary tank 31 is refluxed into the steam generator 7 under the action of the high-temperature pump of the hydrophobic recovery device 3, the mixture containing steam and water in the primary tank 31 is input into the final tank 32, the condensed water is formed in the final tank 32, the condensed water in the final tank 32 is input into the water pool 4 under the action of the high-temperature pump of the hydrophobic recovery device 3, the condensed water in the water pool 4 is input into the flue gas heat exchanger 6 through the upper water pump 5, absorbing the residual heat of the flue of the steam generator 7, the condensed water in the flue gas heat exchanger 6 flows back to the steam generator 7, the condensed water in the sewage tank 92 is purified by the water processor 91 and then is input into the heat exchanger 9, absorbing the residual heat discharged from the steam port of the tail pipe of the material heat supply network device 8, the condensed water in the heat exchanger 9 is input into the water tank 4 again, the steam backflow between the second steam and water separator 2 and the steam generator 7 is prevented by the first one-way valve 101, the condensed water backflow between the drain water recovery device 3 and the steam generator 7 is prevented by the second one-way valve 102, the steam backflow between the material heat supply network device 8 and the heat exchanger 9 is prevented by the third one-way valve 103, the steam pressure value signal in the steam generator 7 is picked up by the first pressure sensor 95, the temperature value signal in the material heat supply network device 8 is picked up by the temperature sensor 96, through the controller 94, the opening and closing amount of the electromagnetic valve 93 is controlled, through the first water level sensor 97, a condensed water depth value signal in the water pool 4 is picked up, through the controller 94, the working state of the water feeding pump 5 is controlled, through the second water level sensor 98, a condensed water depth value signal in the sewage pool 92 is picked up, through the controller 94, the working state of the water processor 91 is controlled, the depth value of the condensed water in the second tank body 22 is monitored through the liquid level meter 29, and the pressure value of the steam in the second tank body 22 is monitored through the second pressure sensor 20.

The invention has the following characteristics:

1. owing to designed steam generator 7, material heat supply network device 8, steam and water separator group and hydrophobic recovery unit 3, through steam generator 7 and material heat supply network device 8, realized the heating to the material, through steam and water separator group, realized recycling the steam that discharges, through hydrophobic recovery unit 3, realized recycling the condensate water that discharges, no longer directly discharge discharging steam and condensate water, consequently improved the utilization efficiency to heat energy.

2. Due to the design of the first and second steam and water separation means 1, 2, different separation zones of steam and condensed water are achieved.

3. Because the water tank 4, the water feeding pump 5 and the flue gas heat exchanger 6 are designed, the waste heat utilization of the steam generator 7 is realized.

4. Due to the design of the heat exchanger 9, the water treatment device 91 and the sewage tank 92, the waste heat utilization of the material heat supply network device 8 is realized.

5. Since the first check valve 101, the second check valve 102 and the third check valve 103 are designed, the reverse flow of the steam and the condensed water is prevented from occurring.

6. Due to the design of the solenoid valve 93, the controller 94, the first pressure sensor 95, the temperature sensor 96, the first water level sensor 97 and the second water level sensor 98, automatic control is achieved.

7. Because the structural shape is limited by the numerical range, the numerical range is the technical characteristic of the technical scheme of the invention, and is not the technical characteristic obtained by formula calculation or limited tests, and tests show that the technical characteristic of the numerical range achieves good technical effect.

8. Due to the design of the technical characteristics of the invention, tests show that each performance index of the invention is at least 1.7 times of the existing performance index under the action of the single and mutual combination of the technical characteristics, and the invention has good market value through evaluation.

Still other features associated with the steam generator 7, which unblocks the gas and water flow ports, the material heat net device 8, the steam and water separation device set and the hydrophobic recovery device 3 are all one of the embodiments of the present invention, and the features of the above-described embodiments may be combined arbitrarily, and in order to meet the requirements of patent laws, patent practice rules and examination guidelines, all possible combinations of the features of the above-described embodiments will not be described.

The above embodiment is only one implementation form of the steam economizer system and the using method based on the closed cycle provided by the invention, and other modifications of the scheme provided by the invention, such as adding or reducing components or steps therein, or applying the invention to other technical fields close to the invention, belong to the protection scope of the invention.

Claims (15)

1. A steam energy-saving system based on closed cycle is characterized in that: comprises a steam generator (7) used for generating heat source steam, a material heat supply network device (8) which is communicated with the steam generator (7), a steam and water separation device group used for steam reflux arranged between the material heat supply network device (8) and the steam generator (7), a hydrophobic recovery device (3) used for condensed water reflux arranged between the material heat supply network device (8) and the steam generator (7),

the steam and water separation device group is arranged to comprise a first steam and water separation device (1) and a second steam and water separation device (2),

also comprises a first accessory device which is provided with a water tank (4), a water feeding pump (5) and a flue gas heat exchanger (6) and is arranged on the steam generator (7),

also comprises a second accessory device which is provided with a heat exchanger (9), a water processor (91) and a sewage pool (92) and is arranged on the material heat supply network device (8),

also comprises a third accessory device which is provided with a first check valve (101), a second check valve (102) and a third check valve (103) and is arranged on the steam generator (7) and the material heating net device (8),

also comprises a fourth accessory device which is provided with an electromagnetic valve (93), a controller (94), a first pressure sensor (95), a temperature sensor (96), a first water level sensor (97) and a second water level sensor (98) and is arranged on the steam generator (7), the material heating net device (8), the first accessory device and the second accessory device,

the first steam and water separation device (1) and the second steam and water separation device (2) are respectively arranged between the material heat supply network device (8) and the hydrophobic recovery device (3), the second steam and water separation device (2) and the hydrophobic recovery device (3) are communicated with the steam generator (7), a first one-way valve (101) is arranged between the second steam and water separation device (2) and the steam generator (7), a second one-way valve (102) is arranged between the hydrophobic recovery device (3) and the steam generator (7), the hydrophobic recovery device (3) and the steam generator (7) are also sequentially provided with a water tank (4), a water feeding pump (5) and a flue gas heat exchanger (6), a water treatment device (91) and a heat exchanger (9) are sequentially arranged between the sewage tank (92) and the water tank (4), a heat exchanger (9) and a third one-way valve (103) are sequentially arranged between the sewage tank (92) and the material heat supply network device (8), an electromagnetic valve (93) is arranged between an output port of the steam generator (7) and an input port of the material heat supply network device (8), a first pressure sensor (95) is arranged in the steam generator (7), a temperature sensor (96) is arranged in the material heat supply network device (8), a first water level sensor (97) is arranged in the water tank (4), a second water level sensor (98) is arranged in the sewage tank (92), and the first pressure sensor (95), the temperature sensor (96), the first water level sensor (97), the second water level sensor (98), a control port of the electromagnetic valve (93), a control port of the water feeding pump (5) and a control port of the water processor (91) are respectively arranged to be connected with the controller (94).

2. The closed cycle based steam economizer system of claim 1 wherein: the steam generator (7), the material heat net device (8), the steam and water separation device set and the hydrophobic recovery device (3) are connected with each other in a mode of dredging gas and water flow ports.

3. The closed cycle based steam economizer system of claim 1 wherein: the first steam and water separation device (1) is set to be a single-tank steam and water separation device, the input port of the first steam and water separation device (1) is respectively set to be connected with the input port of the second steam and water separation device (2) and the tail end output port of the material heat supply network device (8), and the condensed water output port of the first steam and water separation device (1) is set to be connected with the input port of the hydrophobic recovery device (3).

4. The closed cycle based steam economizer system of claim 1 wherein: the second steam and water separation device (2) is arranged to comprise a first tank body (21), a second tank body (22), a first through pipe (23), a second through pipe (24), a third pipe (25), a base (26), an input pipe (27), an output pipe (28), a liquid level meter (29) and a second pressure sensor (20), the bases (26) are respectively arranged on the first tank body (21) and the second tank body (22), the first through pipe (23), the second pipe (24) and the third pipe (25) are respectively arranged between the first tank body (21) and the second tank body (22), the input pipe (27) and a first steam drainage port part (210) are respectively arranged on the first tank body (21), the output pipe (28), the liquid level meter (29), the second pressure sensor (20) and the second steam drainage port part (220) are respectively arranged on the second tank body (22), and the input pipe (27) is respectively arranged to be connected with the input port part and the water separation device (1) The output port of the tail end of the material heat net device (8) is connected, the output pipe (28) is arranged to be connected with the input port of the drainage recovery device (3),

the first tank body (21) and the second tank body (22) are respectively arranged into an oval tank body, the lower end surface part of the first tank body (21) and the lower end surface part of the second tank body (22) are respectively arranged to be connected with the base (26), the upper end surface part of the first tank body (21) is provided with a first steam-venting port part (210) and the upper end surface part of the second tank body (22) is provided with a second steam-venting port part (220), the side surface part of the first tank body (21) is respectively arranged to be connected with the port part of the first through pipe (23), the port part of the second through pipe (24) and the port part of the third pipe (25), the side surface part of the second tank body (22) is respectively arranged to be connected with the port part of the first through pipe (23), the port part of the second through pipe (24) and the port part of the third pipe (25), the lower end part of the side surface of the first tank body (21) is arranged to be connected with the input pipe (27) and the lower end part of the side surface of the second tank body (22) is arranged to be connected with the output pipe (28), the upper end surface part of the second tank body (22) is connected with the second pressure sensor (20) and the first steam-discharging port part (210) and the second steam-discharging port part (220) are respectively arranged into circular threaded hole bodies,

the first through pipe (23), the second through pipe (24) and the third through pipe (25) are arranged to be circular tubular bodies, and mutually connected flange plates are respectively arranged on the first through pipe (23), the second through pipe (24) and the third through pipe (25), one port part of the first through pipe (23) is arranged to be connected with the upper end part of the side surface of the first tank body (21) and the other port part of the first through pipe (23) is arranged to be connected with the upper end part of the side surface of the second tank body (22), one port part of the second through pipe (24) is arranged to be connected with the middle part of the side surface of the first tank body (21) and the other port part of the second through pipe (24) is arranged to be connected with the middle part of the side surface of the second tank body (22), one port part of the third through pipe (25) is arranged to be connected with the lower end part of the side surface of the first tank body (21) and the other port part of the third through pipe (25) is arranged to be connected with the lower end part of the side surface of the second tank body (22),

the inner port part of the input pipe (27) is connected with the first tank body (21), the outer port part of the input pipe (27) is provided with a flange, the inner port part of the output pipe (28) is connected with the second tank body (22), the outer port part of the output pipe (28) is provided with a flange, the input pipe (27) and the output pipe (28) are respectively arranged into a circular tubular body,

the liquid level meter (29) is set as a liquid level difference meter and the port parts of the liquid level meter (29) are respectively set to be coupled with the second tank body (22),

the base (26) is arranged to be a splayed plate-shaped body and the upper end surface part of the base (26) is respectively arranged to be connected with the first tank body (21) and the second tank body (22),

the ratio between the diameter of the first tank (21) and the diameter of the second tank (22) is set to 0.55-0.72:1, the ratio between the distance between the port of the third pipe (25) and the inlet pipe (27) and the diameter of the first tank (21) is set to 0.35-0.46:1, the ratio between the distance between the port of the third pipe (25) and the outlet pipe (28) and the diameter of the second tank (22) is set to 0.55-0.66:1, the ratio between the diameter of the first pipe (23) and the diameter of the first tank (21) is set to 0.28-0.32:1, the ratio between the diameter of the second pipe (24) and the diameter of the first tank (21) is set to 0.22-0.30:1, and the ratio between the diameter of the third pipe (25) and the diameter of the first tank (21) is set to 0.15-0.19: 1.

5. The closed cycle based steam economizer system of claim 1 wherein: the drain recovery device (3) is set as a double-tank drain device and the input port part of the primary tank part (31) of the drain recovery device (3) is respectively set to be coupled with the output port part of the first steam-water separation device (1) and the output port part of the second steam-water separation device (2), the bottom output port part of the primary tank part (31) of the drain recovery device (3) is set to be coupled with the input port part of the steam generator (7) through the second check valve (102) and the input port part of the final tank part (32) of the drain recovery device (3) is set to be coupled with the side output port part of the primary tank part (31) of the drain recovery device (3), the output port part of the final tank part (32) of the drain recovery device (3) is set to be coupled with the water tank (4) and the primary tank part (31) and the final tank part (32) are respectively set as an elliptical tank body,

the steam generator (7) is arranged as a gas boiler, a flue gas heat exchanger (6) is arranged in a flue of the steam generator (7), the output port part of the steam generator (7) is arranged as the input port part of an electromagnetic valve (93), the output port part of the steam generator (7) is arranged to be connected with the output port part of the second steam-water separation device (2) through a first one-way valve (101) and the water inlet backflow port part of the steam generator (7) is arranged to be connected with the flue gas heat exchanger (6), the water inlet backflow port part of the steam generator (7) is arranged to be connected with the hydrophobic recovery device (3) through a second one-way valve (102) and a first pressure sensor (95) is arranged at the input port part of the steam generator (7),

the material heat net device (8) is set to be a drying room, the input port of the material heat net device (8) is set to be connected with the output port of the electromagnetic valve (93), the steam port of the tail pipeline of the material heat net device (8) is set to be connected with the heat exchange input port of the heat exchanger (9) through the third one-way valve (103), the discharge port of the tail pipeline of the material heat net device (8) is respectively set to be connected with the input port of the first steam and water separation device (1) and the input port of the second steam and water separation device (2), and the material heat net device (8) is internally provided with the temperature sensor (96).

6. The closed cycle based steam economizer system of claim 1 wherein: the pool (4) is set to be a rectangular box-shaped body, the input port of the pool (4) is respectively set to be connected with the output port of the drainage recovery device (3) and the output port of the water processor (91), the output port of the pool (4) is set to be connected with the input port of the water feeding pump (5) and a first water level sensor (97) is arranged in the pool (4).

7. The closed cycle based steam economizer system of claim 1 wherein: the output port of the water feeding pump (5) is connected with the material input port of the flue gas heat exchanger (6) and the input port of the water feeding pump (5) is arranged in the water tank (4).

8. The closed cycle based steam economizer system of claim 1 wherein: the flue gas heat exchanger (6) is arranged as a flue gas water heat exchanger, the material input end opening part of the flue gas heat exchanger (6) is arranged to be connected with the water feeding pump (5), the material output end opening part of the flue gas heat exchanger (6) is arranged to be connected with the steam generator (7), and the heat exchange pipe of the flue gas heat exchanger (6) is arranged in the flue of the flue gas heat exchanger (6).

9. The closed cycle based steam economizer system of claim 1 wherein: the heat exchanger (9) is arranged to be a heat exchanger, the heat exchange input end opening portion of the heat exchanger (9) is arranged to be connected with the material heat supply network device (8) through the third one-way valve (103), the heat exchange output end opening portion of the heat exchanger (9) is arranged to be connected with the sewage pool (92), the material input end opening portion of the heat exchanger (9) is arranged to be connected with the water treatment device (91), and the material output end opening portion of the heat exchanger (9) is arranged to be connected with the water pool (4).

10. The closed cycle based steam economizer system of claim 1 wherein: the water processor (91) is set as a steam-floating sewage treatment device, the inlet port part of the input end of the water processor (91) is arranged in the sewage pool (92), and the outlet port part of the output end of the water processor (91) is connected with the heat exchanger (9).

11. The closed cycle based steam economizer system of claim 1 wherein: the sewage tank (92) is a rectangular box-shaped body, a second water level sensor (98) is arranged in the sewage tank (92), and the sewage tank (92) is respectively communicated with the heat exchanger (9) and the water processor (91).

12. The closed cycle based steam economizer system of claim 1 wherein: the input port part of the first check valve (101) is arranged to be connected with the second steam-water separation device (2) and the output port part of the first check valve (101) is arranged to be connected with the electromagnetic valve (93), the input port part of the second check valve (102) is arranged to be connected with the hydrophobic recovery device (3) and the output port part of the second check valve (102) is arranged to be connected with the steam generator (7), the input port part of the third check valve (103) is arranged to be connected with the material heat supply network device (8) and the output port part of the third check valve (103) is arranged to be connected with the heat exchanger (9).

13. The closed cycle based steam economizer system of claim 1 wherein: the controller (94) is set to be a PLC controller, the input port of the controller (94) is respectively set to be connected with the first pressure sensor (95), the temperature sensor (96), the first water level sensor (97) and the second water level sensor (98), and the output port of the controller (94) is respectively set to be connected with the control port of the electromagnetic valve (93), the control port of the water feeding pump (5) and the control port of the water treater (91).

14. The closed cycle based steam economizer system of any one of claims 1 to 13 wherein: the steam generator (7), the material heat supply network device (8), the first steam and water separation device (1), the second steam and water separation device (2) and the drainage recovery device (3) are arranged to be distributed in a mode of steam and condensed water heat source backflow, the steam generator (7), the material heat supply network device (8), the pool (4), the water feeding pump (5), the flue gas heat exchanger (6), the heat exchanger (9), the water treatment device (91) and the sewage pool (92) are arranged to be distributed in a mode of water closed circulation, the first steam and water separation device (1), the second steam and water separation device (2), the drainage recovery device (3), the pool (4), the water feeding pump (5), the flue gas heat exchanger (6), the steam generator (7), the material heat supply network device (8), the heat exchanger (9), the water treatment device (91), the sewage pool (92), the first one-way valve (101), The second check valve (102), the third check valve (103), the electromagnetic valve (93), the controller (94), the first pressure sensor (95), the temperature sensor (96), the first water level sensor (97) and the second water level sensor (98) are distributed according to an automatic operation mode.

15. A method of using a closed cycle based steam economizer system according to any one of claims 1 to 14, characterized by: the method comprises the following steps: the steam generator (7) works to output heat source steam, the steam enters the material heat supply network device (8) through the electromagnetic valve (93), the steam is used as a heat source in the material heat supply network device (8), the steam with impurities discharged from the steam port part of the tail pipe of the material heat supply network device (8) enters the heat exchange port of the heat exchanger (9), condensed water containing the impurities is formed in the heat exchanger (9), the condensed water containing the impurities is injected into the sewage pool (92), the mixture containing the steam and the water is output from the discharge port part of the tail pipe of the material heat supply network device (8) and respectively enters the first steam and water separating device (1) and enters the first tank body (21) through the input pipe (27), the first steam and water separating device (1) is used for separating the condensed water in the mixture containing the steam and the water, and the steam in the mixture containing the steam and the water is subjected to first separation in the first tank body (21), the mixture containing steam and water entering the second tank body (22) through the first through pipe (23), the second through pipe (24) and the third through pipe (25) is subjected to second steam separation, the steam in the first tank body (21) is communicated with the output port part of the steam generator (7) through the first steam-dredging port part (210) and the steam in the second tank body (22) through the second steam-dredging port part (220), condensed water in the first tank body (21) and the condensed water in the second tank body (22) are input into the primary tank part (31) through an output pipe (28), the condensed water in the primary tank part (31) flows back into the steam generator (7) under the action of a high-temperature pump of the hydrophobic recovery device (3), the mixture containing steam and water in the primary tank part (31) is input into the final tank part (32), the condensed water is formed in the final tank part (32), and under the action of the high-temperature pump of the hydrophobic recovery device (3), condensed water of the final-stage tank part (32) is input into a water tank (4), the condensed water of the water tank (4) is input into a flue gas heat exchanger (6) through a water feeding pump (5), flue waste heat of a steam generator (7) is absorbed, the condensed water in the flue gas heat exchanger (6) flows back into the steam generator (7), the condensed water in a sewage tank (92) is input into a heat exchanger (9) after being purified through a water treatment device (91), waste heat is discharged from a steam port part of a tail pipe of an absorption material heat supply network device (8), the condensed water in the heat exchanger (9) is input into the water tank (4), steam backflow between a second steam and water separation device (2) and the steam generator (7) is prevented through a first one-way valve (101), and the condensed water backflow between a hydrophobic recovery device (3) and the steam generator (7) is prevented through a second one-way valve (102), through a third one-way valve (103), steam backflow between the material heat supply network device (8) and the heat exchanger (9) is prevented, a steam pressure value signal in the steam generator (7) is picked up through a first pressure sensor (95), a temperature value signal in the material heat supply network device (8) is picked up through a temperature sensor (96), the opening and closing amount of an electromagnetic valve (93) is controlled through a controller (94), a condensed water depth value signal in the water pool (4) is picked up through a first water level sensor (97), the working state of the water feeding pump (5) is controlled through the controller (94), a condensed water depth value signal in the sewage pool (92) is picked up through a second water level sensor (98), the working state of the water processor (91) is controlled through the controller (94), and the depth value of the condensed water in the second tank body (22) is monitored through a liquid level meter (29), the pressure value of the steam in the second tank (22) is monitored by a second pressure sensor (20).

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