阅读说明：本技术 一种提高纸机效能的系统及方法 (System and method for improving efficiency of paper machine ) 是由 童小龙 温建新 郁园赞 李月仙 程俊 于 2021-01-11 设计创作，主要内容包括：本发明涉及一种提高纸机效能的系统及方法。它解决了现有技术效能较低等缺陷。一种提高纸机效能的方法包括如下步骤：S1.新蒸汽供给管将新蒸汽从烘缸进口处供给至烘缸内,烘缸烘干作业,从烘缸的出口将新蒸汽被烘缸热交换后的汽水混合物排放至汽水分离器中；S2.汽水分离器分离处理汽水混合物后的冷凝水从冷凝水排放系统排出,汽水分离器分离处理汽水混合物后的分离蒸汽进入至汽水分离器顶部的蒸汽回收单向输送管路,蒸汽压缩机对进入至蒸汽回收单向输送管路中的分离蒸汽进行增压并且增压后的分离蒸汽其蒸汽压力大于新蒸汽的蒸汽压力,增压后的分离蒸汽进入新蒸汽供给管与新蒸汽供给管内的新蒸汽共混。本发明优点：提高了纸机效能。(The invention relates to a system and a method for improving the efficiency of a paper machine. It has solved the defect such as the prior art efficiency is lower. A method of improving the efficiency of a paper machine comprising the steps of: s1, a new steam supply pipe supplies new steam into a drying cylinder from an inlet of the drying cylinder, the drying cylinder performs drying operation, and a steam-water mixture of the new steam subjected to heat exchange by the drying cylinder is discharged into a steam-water separator from an outlet of the drying cylinder; s2, discharging condensed water after the steam-water mixture is separated and processed by the steam-water separator from a condensed water discharge system, enabling separated steam after the steam-water mixture is separated and processed by the steam-water separator to enter a steam recovery one-way conveying pipeline at the top of the steam-water separator, pressurizing the separated steam entering the steam recovery one-way conveying pipeline by a steam compressor, enabling the steam pressure of the pressurized separated steam to be larger than that of new steam, and enabling the pressurized separated steam to enter a new steam supply pipe and be mixed with the new steam in the new steam supply pipe. The invention has the advantages that: the efficiency of the paper machine is improved.)

1. A method of improving the efficiency of a paper machine, characterized in that the method comprises the steps of:

s1, a new steam supply pipe (1) supplies new steam into a drying cylinder (2) from an inlet of the drying cylinder (2), the drying cylinder (2) performs drying operation, and a steam-water mixture obtained after the new steam is subjected to heat exchange by the drying cylinder (2) is discharged into a steam-water separator (3) from an outlet of the drying cylinder (2);

s2, discharging the condensed water after the steam-water mixture is separated by the steam-water separator (3) from a condensed water discharge system, introducing the separated steam after the steam-water mixture is separated by the steam-water separator (3) into a steam recovery one-way conveying pipeline (5) at the top of the steam-water separator (3), the steam recovery unidirectional conveying pipeline (5) is communicated with the new steam supply pipe (1), the steam recovery unidirectional conveying pipeline (5) is connected with a steam compressor (6), the steam compressor (6) is started, the steam compressor (6) boosts the separated steam entering the steam recovery unidirectional conveying pipeline (5), the steam pressure of the boosted separated steam is larger than that of the new steam, the boosted separated steam enters the new steam supply pipe (1) and is mixed with the new steam in the new steam supply pipe (1), and the mixed steam mixture finally enters the drying cylinder (2);

and repeating the step S2 to ensure that the separated steam separated by the steam-water separator (3) is pressurized and recycled.

2. A method according to claim 1, characterized in that in said step S2, the connection between the steam recovery unidirectional transport pipe (5) and the fresh steam supply pipe (1) is accelerated blending such that the pressurized separation steam delivered by the steam recovery unidirectional transport pipe (5) is delivered in the fresh steam delivery direction of the fresh steam supply pipe (1) and mixed with the fresh steam.

3. A method according to claim 1, characterized in that in said step S2, the pressurized separated steam forces the non-return valve (7) of the steam recovery non-return conveying line (5) to open and finally to the new steam supply pipe (1).

4. A system adopting the method for improving the efficiency of the paper machine according to any one of claims 1 to 3, comprising a drying cylinder (2), wherein a new steam supply pipe (1) is connected at the inlet of the drying cylinder (2), and a steam-water separator (3) is connected at the outlet of the drying cylinder (2), and is characterized in that a steam outlet of the steam-water separator (3) is connected with a steam recovery one-way conveying pipeline (5), one end of the steam recovery one-way conveying pipeline (5) far away from the steam-water separator (3) is communicated with the new steam supply pipe (1), a steam compressor (6) for pressurizing the separated steam obtained by the separation of the steam-water separator (3) is connected on the steam recovery one-way conveying pipeline (5), the steam pressure of the separated steam pressurized by the steam compressor (6) is larger than that of the new steam in the new steam supply pipe (1), the pressurized separated steam is mixed with fresh steam in a fresh steam supply conduit (1) and the resulting steam mixture is passed from the inlet of the drying cylinder (2) into the drying cylinder (2).

5. A system for improving the efficiency of a paper machine according to claim 4, characterized in that the end of the steam recovery unidirectional transport conduit (5) communicating with the live steam supply conduit (1) is provided with an accelerated blending structure (50) enabling accelerated blending of the pressurized separated steam with the live steam and into the drying cylinder (2).

6. A system for improving the efficiency of a paper machine according to claim 5, characterized in that said accelerated blend structure (50) comprises an inclined tube connected to the end of the steam recovery unidirectional transportation pipeline (5) communicating with the new steam supply pipe (1), the section of the new steam supply pipe (1) at the entrance to the drying cylinder (2) is a straight tube, the inclined tube is connected to the straight tube, and the horizontal distance between the end of the inclined tube near the steam recovery unidirectional transportation pipeline (5) and the entrance to the drying cylinder (2) is greater than the horizontal distance between the end of the inclined tube near the straight tube and the entrance to the drying cylinder (2).

7. A system according to claim 6, characterized in that the axis of said inclined tube and the axis of said straight tube form an obtuse angle (a).

8. A system for improving the efficiency of a paper machine according to claim 4, characterized in that said steam recovery one-way conveying line (5) is provided with a one-way valve (7); a new steam one-way valve (10) is arranged on the new steam supply pipe (1).

9. A system for improving the efficiency of a paper machine according to claim 4, characterized in that a condensate discharge line (4) is connected to the bottom of said steam-water separator (3).

10. A system for improving efficiency of a paper machine according to claim 4, characterized in that the steam compressor (6) comprises a high speed motor (60), a high speed rotor (61) is connected to the output shaft of the high speed motor (60), a rear cover (62) fitted around the periphery of the output shaft of the high speed motor (60) is fixedly connected to the end of the casing of the high speed motor (60) close to the high speed rotor (61), a sealer (63) fitted around the output shaft of the high speed motor (60) and sealingly connected to the output shaft of the high speed motor (60) is fixed to the inner side of the rear cover (62), a volute (64) is connected to the outer edge of the rear cover (62), a volute inner body (65) connected to the end of the volute (64) far from the rear cover (62), an inlet pipe (66) is connected to the end of the volute inner body (65) far from the volute (64), and a static wheel cover (67) is arranged between the inner side of the end of the volute inner body (65, the high-speed impeller (610) of the high-speed rotor (61) is positioned on the inner side of the static wheel cover (67), the conical part (68) of one end, far away from the output shaft of the high-speed motor (60), of the high-speed rotor (61) extends into the volute inner body (65), the lowest part of the lower side of the volute (64) is connected with a water discharge port (69), and the lower side of the volute (64) is connected with a steam discharge port.

Technical Field

The invention belongs to the technical field of steam heating and drying, and particularly relates to a system and a method for improving the efficiency of a paper machine.

Background

The steam heating drying device can heat the drying cylinder by using a heat pump system, the traditional drying cylinder is heated by using steam, the drying cylinder is heated by using new steam in a heat exchange mode to achieve the purpose of heating, and a steam-water mixture after heat exchange enters a steam-water separator to be subjected to steam-water separation. For example, the chinese patent discloses a CN 102317541B-apparatus and method for drying a web of tissue paper using steam, which can achieve the purpose of energy saving by recycling condensed water using a heat pump; meanwhile, the Chinese patent also discloses a CN 204662174U-dryer steam high-efficiency recycling system, wherein a steam ejector is used for mixing and utilizing new steam and recovered steam, and the purpose of energy conservation is achieved by recycling the steam.

Although the first method can achieve the purpose of energy saving, it cannot recycle the low-temperature steam after heat exchange, resulting in waste of steam; although the separated steam can be recycled, the method utilizes the new steam with higher pressure to inject the recovered steam with lower pressure to obtain the steam with a certain pressure in the middle so as to achieve the purpose of low product utilization or waste heat utilization, the method inevitably causes the steam pressure and the temperature of the new steam to be reduced, further causes the mixed steam of the new steam and the recovered steam to need more steam consumption for heating the drying cylinder, and has an undesirable energy-saving effect.

Disclosure of Invention

The present invention is directed to the above-mentioned problems and provides a system and method for improving the performance of a paper machine that solves the above-mentioned problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

a method of improving the efficiency of a paper machine comprising the steps of:

s1, a new steam supply pipe supplies new steam into a drying cylinder from an inlet of the drying cylinder, the drying cylinder performs drying operation, and a steam-water mixture of the new steam subjected to heat exchange by the drying cylinder is discharged into a steam-water separator from an outlet of the drying cylinder;

s2, discharging condensed water after the steam-water mixture is separated and processed by the steam-water separator from a condensed water discharge system, enabling separated steam after the steam-water mixture is separated and processed by the steam-water separator to enter a steam recovery one-way conveying pipeline at the top of the steam-water separator, communicating the steam recovery one-way conveying pipeline with a new steam supply pipe, starting a steam compressor, pressurizing the separated steam entering the steam recovery one-way conveying pipeline by the steam compressor, enabling the steam pressure of the pressurized separated steam to be larger than that of the new steam, enabling the pressurized separated steam to enter the new steam supply pipe to be mixed with the new steam in the new steam supply pipe, and enabling the mixed steam mixture to finally enter a drying cylinder;

and repeating the step S2 to ensure that the separated steam separated by the steam-water separator is pressurized and recycled.

In the step S2, the connection between the vapor recovery unidirectional transportation pipeline and the fresh vapor supply pipeline makes the pressurized separation vapor transported by the vapor recovery unidirectional transportation pipeline output along the fresh vapor transportation direction of the fresh vapor supply pipeline and mix with the fresh vapor by means of accelerated blending.

In the above step S2, the pressurized separated steam forces the check valve on the steam recovery one-way delivery pipe to open and finally enters the new steam supply pipe.

A system for improving the efficiency of a paper machine comprises a drying cylinder, wherein a new steam supply pipe is connected to the inlet of the drying cylinder, a steam-water separator is connected to the outlet of the drying cylinder, a steam recovery one-way conveying pipeline is connected to the steam outlet of the steam-water separator, one end, far away from the steam-water separator, of the steam recovery one-way conveying pipeline is communicated with the new steam supply pipe, a steam compressor for pressurizing separated steam obtained through separation by the steam-water separator is connected to the steam recovery one-way conveying pipeline, the steam pressure of the separated steam pressurized by the steam compressor is larger than that of new steam in the new steam supply pipe, the pressurized separated steam and the new steam are mixed in the new steam supply pipe, and the final steam mixture enters the drying cylinder from the inlet of the drying cylinder.

In the system for improving the efficiency of the paper machine, one end of the steam recovery one-way conveying pipeline communicated with the new steam supply pipe is provided with an accelerated blending structure which can accelerate the mixing of the pressurized separation steam and the new steam and enter the drying cylinder.

In the system for improving the efficiency of the paper machine, the accelerating blending structure comprises an inclined pipe connected to one end of the steam recovery one-way conveying pipeline communicated with the new steam supply pipe, the new steam supply pipe and one section of the dryer inlet are straight pipes, the inclined pipe is connected to the straight pipes, and the horizontal distance between one end of the inclined pipe close to the steam recovery one-way conveying pipeline and the dryer inlet is greater than the horizontal distance between one end of the inclined pipe close to the straight pipes and the dryer inlet.

In the above system for improving the efficiency of the paper machine, the axis of the inclined tube and the axis of the straight tube form an obtuse angle.

In the system for improving the efficiency of the paper machine, the steam recovery one-way conveying pipeline is provided with a one-way valve; a new steam one-way valve is arranged on the new steam supply pipe.

In the system for improving the efficiency of the paper machine, the bottom of the steam-water separator is connected with a condensed water discharge pipeline.

In the system for improving the paper machine efficiency, the steam compressor comprises a high-speed motor, a high-speed rotor is connected on an output shaft of the high-speed motor, a rear cover sleeved on the periphery of the output shaft of the high-speed motor is fixedly connected to one end, close to the high-speed rotor, of a shell of the high-speed motor, a sealer sleeved on the output shaft of the high-speed motor and hermetically connected with the output shaft of the high-speed motor is fixed on the inner side of the rear cover, a volute is connected to the outer edge of the rear cover, a volute inner body connected to one end, far away from the volute, of the volute is connected with an inlet pipe, a fixed wheel cover is arranged between the inner side, close to the volute, of the volute inner body and an inner cylindrical surface of the volute, a high-speed impeller of the high-speed rotor is positioned on the inner side of the fixed, the lower side of the volute is connected with a steam outlet, and a steam inlet of the steam outlet is higher than a water inlet of the water outlet. The sealer and the high-speed motor output shaft form a surrounding type seal.

Compared with the prior art, the system and the method for improving the efficiency of the paper machine have the advantages that: the utilization is carried out the pressure boost to the separation steam of retrieving, and it can further improve operating efficiency, practices thrift the running cost.

The mode of pressurizing and heating the recovered separated steam and mixing the separated steam with new steam is utilized, so that the operation energy consumption can be further reduced, and the input quantity of the new steam is saved.

Drawings

FIG. 1 is a block flow diagram provided by the present invention.

Fig. 2 is a schematic view of a vapor compressor according to the present invention.

In the figure, a fresh steam supply pipe 1, a fresh steam one-way valve 10, a drying cylinder 2, a discharge pipe 20, a steam-water separator 3, a condensed water discharge pipeline 4, a condensate pump 40, a steam recovery one-way conveying pipeline 5, an accelerated blending structure 50, a steam compressor 6, a high-speed motor 60, a high-speed rotor 61, a high-speed impeller 610, a rear cover 62, a sealer 63, a volute 64, a volute inner body 65, an inlet pipe 66, a static wheel cover 67, a conical part 68, a water discharge port 69, a one-way valve 7 and an obtuse angle a are arranged.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 2, a method of improving the efficiency of a paper machine comprises the steps of:

s1. a new steam supply pipe 1 supplies new steam from the inlet of the drying cylinder 2 into the drying cylinder 2, the pressure of the new steam being less than 0.6MPa, for example: 0.5 MPa, the drying cylinder 2 is used for drying operation, the special paper can be dried, and the steam-water mixture of the new steam after heat exchange by the drying cylinder 2 is discharged into the steam-water separator 3 from the outlet of the drying cylinder 2.

The new steam supply pipe 1 is connected with the inlet of the drying cylinder 2 through a straight pipe.

Condensate water after the steam-water mixture is separated and processed by the steam-water separator 3 is discharged from a condensate water discharge system, preferably, the condensate water discharge system comprises a condensate water discharge pipeline 4, a condensate pump 40 is connected to the condensate water discharge pipeline 4, the condensate pump 40 discharges the condensate water to a boiler room or a heat exchanger after the condensate water is processed, and the energy consumption of operation can be further reduced by recycling the condensate water discharge system, so that the condensate water discharge system is energy-saving and more environment-friendly.

The outlet of the drying cylinder 2 is connected with a discharge pipe 20, the discharge pipe 20 is connected to the middle part of the steam-water separator 3, and the condensed water discharge pipeline 4 is connected to the bottom of the steam-water separator 3, so that the sufficiency of steam-water separation can be ensured.

The method comprises the following steps that separated steam after a steam-water mixture is separated and processed by a steam-water separator 3 enters a steam recovery one-way conveying pipeline 5 at the top of the steam-water separator 3, the steam recovery one-way conveying pipeline 5 is communicated with a new steam supply pipe 1, further, the steam recovery one-way conveying pipeline 5 is communicated with a straight pipe of the new steam supply pipe 1, a steam compressor 6 is started, the steam compressor 6 is installed at one end, close to the steam-water separator 3, of the steam recovery one-way conveying pipeline 5, the steam compressor 6 boosts the separated steam entering the steam recovery one-way conveying pipeline 5, the steam pressure of the boosted separated steam is larger than that of the new steam, the boosted separated steam enters the new steam supply pipe 1 and is mixed with the new steam in the new steam supply pipe 1, and the mixed steam mixture finally enters a drying cylinder 2;

and repeating the step S2 to make the separated steam separated by the steam-water separator 3 be pressurized and recycled.

The steam compressor 6 boosts the separated steam, the pressure, speed and temperature of the separated steam are improved, the recovered steam is boosted and mixed with new steam, the pressure and the like of the boosted separated steam before mixing are higher than those of the new steam, namely, the pressure of the new steam can be further increased by the boosted separated steam, the heating consumption total amount of the boosted separated steam and the new steam after mixing for a drying cylinder can be greatly reduced in the same heating time period, meanwhile, the recovery amount of the separated steam is obviously lower than the supply amount of the new steam, the steam compressor 6 boosts the recovered separated steam, the separated steam is easily boosted rapidly, the boosting is simple and efficient, namely, the boosted separated steam and the new steam are mixed for conveying, and the pressure of the new steam in the mode is improved, Speed and temperature can not receive the separation steam after the pressure boost and the phenomenon that reduces appears, and on the contrary, this application can also carry out acceleration, intensification and pressure boost to new steam, has ensured mixed steam its heating efficiency to the dryer.

In addition, by utilizing the way that the pressure of the separated steam after being pressurized by the steam compressor 6 is greater than the new steam pressure and is finally mixed, at the communication part of the steam recovery unidirectional conveying pipeline 5 and the new steam supply pipe 1, because the steam pressures in the two pipelines are inconsistent, the pressurized separated steam can actively force the new steam to be accelerated and mixed and to enter the drying cylinder in an accelerated manner so as to achieve high-efficiency operation efficiency, and meanwhile, the way can further reduce the operation energy consumption.

In the above step S2, the connection between the vapor recovery unidirectional transportation pipeline 5 and the live steam supply pipe 1 is performed by accelerated blending such that the pressurized separation vapor transported by the vapor recovery unidirectional transportation pipeline 5 is output along the live steam transportation direction of the live steam supply pipe 1 and mixed with the live steam.

The accelerating blending mode is realized by adopting a mechanical structure. The accelerated blending mode allows the live steam to enter the dryer at a faster rate than the original rate and also accelerates the mixing of the pressurized steam and the live steam.

In the above step S2, the pressurized separated steam forces the check valve 7 on the steam recovery one-way transfer pipe 5 to open and finally enters the new steam supply pipe 1. The one-way valve 7 plays a role of a safety valve, and meanwhile, when the subsequent drying cylinder discharges the steam-water mixture, the internal pressure of the steam-water separator 3 is lower than the pressure in the drying cylinder, so that the steam-water mixture in the drying cylinder can be discharged completely.

As shown in fig. 1 and 2, a system for improving the efficiency of a paper machine comprises a drying cylinder 2, a fresh steam supply conduit 1 connected to the inlet of the drying cylinder 2, a steam-water separator 3 connected to the outlet of the drying cylinder 2, and a discharge conduit 20 connecting the drying cylinder 2 and the steam-water separator 3. The bottom of the steam-water separator 3 is connected with a condensed water discharge pipeline 4.

A steam recovery one-way conveying pipeline 5 is connected to a steam outlet of the steam-water separator 3, one end, far away from the steam-water separator 3, of the steam recovery one-way conveying pipeline 5 is communicated with the new steam supply pipe 1, a steam compressor 6 for boosting the separated steam obtained through the separation treatment of the steam-water separator 3 is connected to the steam recovery one-way conveying pipeline 5, the steam pressure of the separated steam boosted by the steam compressor 6 is greater than that of the new steam in the new steam supply pipe 1, the boosted separated steam and the new steam are mixed in the new steam supply pipe 1, and the final steam mixture enters the drying cylinder 2 from an inlet of the drying cylinder 2.

The one-way valve 7 is arranged on the steam recovery one-way conveying pipeline 5, and the one-way valve 7 is positioned behind a steam outlet of the steam compressor 6. The one-way valve 7 can prevent new steam from entering the steam compressor 6, so that the protection effect is achieved, and meanwhile, the drying cylinder can be completely discharged when the steam-water mixture is discharged.

Next, a new steam check valve 10 is provided in the new steam supply pipe 1. The recovered separated steam is pressurized, and the pressurized separated steam is mixed with new steam, so that the opening angle of the new steam one-way valve 10 can be reduced in the process, and the purpose of energy conservation is achieved. For example, when the separated steam is not pressurized and mixed with the new steam, the opening angle of the new steam one-way valve 10 is 80-90 degrees, and when the separated steam is pressurized and mixed with the new steam, the new steam one-way valve 10 can meet the production requirement as long as the new steam one-way valve 10 is opened by 40-50 degrees.

In addition, the mode of pre-pressurizing the recovered separation steam is utilized, so that the system can be suitable for full recycling of the low-pressure separation steam, the waste of the steam is avoided, and the production cost is further saved.

Preferably, an accelerating blending structure 50 which can accelerate the blending of the pressurized separation steam and the new steam and enter the drying cylinder 2 is arranged at one end of the steam recovery unidirectional conveying pipeline 5 communicated with the new steam supply pipe 1. Specifically, the accelerated blending structure 50 of the embodiment includes an inclined pipe connected to one end of the steam recovery unidirectional transportation pipeline 5 communicated with the new steam supply pipe 1, the new steam supply pipe 1 and one section of the inlet of the drying cylinder 2 are straight pipes, the inclined pipe is connected to the straight pipes, and the horizontal distance between one end of the inclined pipe close to the steam recovery unidirectional transportation pipeline 5 and the inlet of the drying cylinder 2 is greater than the horizontal distance between one end of the inclined pipe close to the straight pipes and the inlet of the drying cylinder 2.

The axial lead of the inclined pipe and the axial lead of the straight pipe form an obtuse angle a. For example, the obtuse angles are 58 °, 60 ° and 62 °, etc., although other obtuse angles can be designed, and the embodiment is not exhaustive here. The inclination of the inclined pipe a can enable the pressurized separation steam to impact new steam according to the conveying direction of the new steam, impact and realize the mixing of the new steam and the pressurized separation steam, and the mode can obviously improve the blending and mixing efficiency and further improve the speed of the new steam entering a drying cylinder.

The inclined pipe a is a straight pipe and is arranged on the pipe diameter, and preferably, the inner diameter of the inclined pipe a is equal to or smaller than that of the straight pipe, so that the timeliness and sufficiency of steam supply are guaranteed.

Specifically, the vapor compressor 6 of the present embodiment includes a high-speed motor 60, a high-speed rotor 61 is connected to an output shaft of the high-speed motor 60, the high-speed rotor 61 is in an umbrella shape, a plurality of high-speed impellers 610 distributed at equal intervals on the circumference are arranged on the side of the high-speed rotor 61, and the power output is more timely by adopting a direct driving manner.

Secondly, the end of the high speed rotor 61 remote from the output shaft of the high speed motor 60 has a tapered portion 68 which can form a partial flow of the incoming separated steam.

A rear cover 62 sleeved on the periphery of the output shaft of the high-speed motor 60 is fixedly connected to one end of the housing of the high-speed motor 60 close to the high-speed rotor 61, a sealer 63 sleeved on the output shaft of the high-speed motor 60 and hermetically connected with the output shaft of the high-speed motor 60 is fixed on the inner side of the rear cover 62, specifically, a first step is arranged on the inner wall of the rear cover 62, and an outer convex part matched with the first step is arranged on the outer wall of the sealer 63. The inner wall of the sealer 63 is provided with a plurality of sealing lips which are uniformly distributed at intervals, and the sealing lips are in dynamic sealing connection with the output shaft of the high-speed motor so as to ensure the sealing performance during pressurization. In addition, a gap is reserved between the end face of one end of the high-speed rotor 61 connected with the output shaft of the high-speed motor and the sealer 63 and the rear cover 62 to prevent contact interference, and the gap formed by the high-speed rotor 61 and the rear cover 62 is smaller than the gap formed by the high-speed rotor 61 and the sealer 63 to provide buffering of the shunt pressure and play a role in protection.

Be connected with the spiral case 64 in back lid 62 outer fringe, specifically, be equipped with the right angle breach in the one end outer fringe that high-speed motor was kept away from to back lid 62, connect the spiral case endosome 65 that back lid 62 one end was kept away from to spiral case 64, the unilateral transverse section of spiral case 64 is C shape ring, for the improvement fixed stability, is connected with square fixed part respectively at two tip of C shape ring, and one of them square fixed part matches with the right angle breach to both utilize a plurality of bolts that are the circumference and distribute to connect fixedly.

An inlet pipe 66 is connected to one end of the volute inner body 65 far away from the volute 64, the inlet pipe 66 is a conical pipe, a static wheel cover 67 is arranged between the inner side of one end of the volute inner body 65 close to the volute 64 and the inner cylindrical surface of the volute 64, the shape of the static wheel cover 67 is matched with the shape of the high-speed impeller 610, the arc length of the single-sided section of the static wheel cover 67 is longer than that of the high-speed impeller 610, the high-speed impeller 610 is positioned in the middle position of the inner side of the static wheel cover 67, the structure can enable separated steam to enter the high-speed rotor under the shunting action of a conical part 68, the high-speed impeller 610 of the high-speed rotor 61 is positioned in the inner side of the static wheel cover 67, the conical part 68 at one end of the high-speed rotor 61 far away from the output shaft of the high-speed motor 60 extends into the volute inner body 65, a water outlet 69, the steam inlet of the steam outlet is higher than the water inlet of the water outlet 69. The pressurized separation steam discharged from the steam outlet enters the steam recovery one-way conveying pipeline 5, and the pressurized separation steam forces the one-way valve to be opened, so that the pressurized separation steam is conveyed to the new steam supply pipe 1 in time.

The right-angled edge of one end of the other square fixing part is matched with the right-angled notch groove on the outer edge of the rear end of the volute inner body 65, the inner surface of the other end of the square fixing part is sealed with the end face of the large-diameter end of the fixed wheel cover 67, and the end face of the small-diameter end of the fixed wheel cover 67 is connected with the inner edge of the rear end face of the volute inner body 65 in a sealing mode.

The non-pressurized separation steam enters from the inlet pipe 66, the high-speed rotor 61 enables the high-speed rotor 61 and the high-speed impeller 610 to rotate at a high speed through the high-speed motor 60, work is done on the separation steam, the pressure, the speed and the temperature of the separation steam flowing through the arc-shaped impeller are rapidly improved, then the pressurized separation steam flows into the static wheel cover 67 and the volute 64, the air flow speed is reduced, the pressure is increased again, the condensed water in the volute 64 is discharged from the water discharge port 69 at the lowest side, and the pressurized separation steam enters the steam recovery one-way conveying pipeline 5 from the steam discharge port and opens the one-way valve.

Example two

The working principle and structure of the embodiment are basically the same as those of the first embodiment, and the different structures are as follows: the inclined pipe is an arched pipe, and the arch of the arched pipe is arched downwards.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.