A steam turbine circulating water residue filtering device

Abstract

The present invention discloses a steam turbine circulating water residue filter device, comprising a support mechanism, a water inlet mechanism, and a water storage mechanism. The support mechanism comprises a base for support, a circulation pipe extending from one side of the base to the other, a water filter unit that can be pulled out and disposed on the outer surface of the base, drainage pipes disposed on both sides of the base, and a wave-pushing unit disposed within the base. The steam turbine circulating water residue filter device, through its efficient impurity filtration and intermittent addition of cooling medium, can effectively maintain the cleanliness and cooling effect of the circulating water system, preventing clogging, scaling, and contamination of the entire system, thereby improving the system's performance and operating efficiency. At the same time, it reduces corrosion and wear on the equipment caused by impurities, extending the equipment's service life and reducing maintenance costs.

Description

Technical Field

[0001] The present invention relates to the technical field of steam turbine environmental protection, and in particular to a steam turbine circulating water residue filtering device. Background Art

[0002] In thermal power plants, steam turbines require large amounts of circulating water for cooling and heat exchange to ensure stable operation of the power generation system. However, as this circulating water is recycled, various impurities, particles, and dirt gradually accumulate in it, forming filter residues, which negatively impact the performance and operational efficiency of the circulating water system.

[0003] Traditional circulating water filter systems typically use mechanical filters or sedimentation tanks to remove impurities from the circulating water. However, these systems have several issues. Mechanical filters cannot effectively remove larger particles of contaminants and are less effective at filtering colloids. While sedimentation tanks can precipitate smaller particles and colloids, they are inefficient, require a long settling time, and are prone to sludge blockage and secondary contamination. Furthermore, since circulating water is intended for heat exchange, the need for regular addition of cooling media is a significant complication.

[0004] Therefore, for the treatment of circulating water residue for steam turbines in thermal power plants, a device that is efficient, stable and capable of removing particles at the same time is needed. Summary of the Invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems existing in the existing steam turbine circulating water residue filtering device, the present invention is proposed.

[0007] Therefore, the object of the present invention is to provide a steam turbine circulating water residue filtering device, which aims to quickly filter the circulating water through the device and to intermittently add cooling medium at the same time.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: including a supporting mechanism, a water inlet mechanism and a water storage mechanism, wherein the supporting mechanism includes a base for support, a circulation pipe extending from one side of the base to the other side, a water filtering unit that can be pulled out and arranged on the outer surface of the base, drainage pipes arranged on both sides of the base, a wave pushing unit arranged in the base, and a support block arranged in the base; the water inlet mechanism is arranged at one end of the base, and includes a water guiding unit fixed on the outer surface of the base, a stirring unit installed inside the water guiding unit, a rotating shaft unit cooperating with the stirring unit and arranged in the base, and a peristaltic unit arranged in the base and the support block and cooperating with the rotating shaft unit; the water storage mechanism is arranged on the outer surface of the base, and includes a water storage unit arranged at one end of the base, a water limiting unit arranged at the water outlet end of the water storage unit, and a water retaining unit installed in the water storage unit and extending to the inside of the drainage pipe.

[0009] As a preferred solution of the steam turbine circulating water residue filtering device described in the present invention, the water guiding unit includes a water inlet bucket arranged on the outer surface of the base, a first water inlet pipe and a second water inlet pipe arranged at both ends of the outer surface of the water inlet bucket, and a cover plate for covering arranged on the outer surface of the water inlet bucket.

[0010] As a preferred solution of the steam turbine circulating water residue filtering device of the present invention, the first water inlet pipe and the second water inlet pipe can both be used for water intake, are arranged at two symmetrical ends, and have different heights.

[0011] As a preferred solution of the steam turbine circulating water residue filtering device described in the present invention, the stirring unit includes a cylinder limited on the base and located in the water inlet bucket, a fan blade plate arranged on the outer surface of the cylinder, a fixed plate arranged in the cylinder, and a protrusion fixed on the fixed plate.

[0012] As a preferred solution of the steam turbine circulating water filter residue device described in the present invention, the rotating shaft unit includes a support shaft limited on the base so as to be rotatable and cooperate with the protrusion, an elliptical block fixed on the support shaft and extending to one end inside the base, a disc block arranged at the end of the support shaft, and a protrusion arranged on the disc block.

[0013] As a preferred solution of the steam turbine circulating water filter residue device described in the present invention, the peristaltic unit includes a driving assembly connected to the base and a peristaltic part arranged in the driving assembly and confined in the support block, and the outer surface of the peristaltic part is in contact with the circulation pipe; the driving assembly includes a circular block connected to the base through a rotating shaft and a groove circumferentially opened on the outer surface of the circular block, and the groove can cooperate with the boss.

[0014] As a preferred embodiment of the steam turbine circulating water residue filter device of the present invention, the water storage unit includes a water tank arranged at both ends of the outer surface of the base, a water storage cavity arranged inside the water tank, and a water inlet valve arranged on the top of the water tank; the water limiting unit includes a one-way water inlet valve and a one-way water outlet valve respectively fixed at the ends of the water storage cavity.

[0015] As a preferred solution of the steam turbine circulating water residue filtering device of the present invention, the water retaining unit includes a water retaining member limited in the water storage tank and extending into the drain pipe, and a top pressure spring arranged in the water storage tank and connected to the water retaining member.

[0016] As a preferred solution of the steam turbine circulating water residue filtering device of the present invention, the water filtering unit includes a fixed box extending to the outer surface of the base and a filter box fixed at the end of the fixed box and located below the water inlet end opened on the base.

[0017] As a preferred solution of the steam turbine circulating water residue filter device described in the present invention, the wave pushing unit includes a positioning plate fixed on the base, a compression spring arranged on the outer surface of the positioning plate, and a wave pushing plate fixed on one side surface of the compression spring, and the outer surface of the wave pushing plate is in contact with the elliptical block.

[0018] The beneficial effects of the present invention are as follows: through the functions of efficient impurity filtration and intermittent addition of cooling medium, the device can effectively maintain the cleanliness and cooling effect of the circulating water system, prevent the entire system from being blocked, scaled and polluted, thereby improving the performance and operating efficiency of the system, and at the same time, reducing the corrosion and wear of impurities on the equipment, extending the service life of the equipment and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the steam turbine circulating water residue filtering device of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall front cross-sectional structure of the steam turbine circulating water residue filtering device of the present invention.

[0022] Figure 3 This is a schematic top view of the structure of the protrusion and support shaft of the steam turbine circulating water filter device of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure in which the elliptical block and the wave-pushing plate of the steam turbine circulating water filter device of the present invention are fitted together.

[0024] Figure 5 This is a schematic diagram of the convex column and groove structure of the steam turbine circulating water residue filtering device of the present invention.

[0025] Figure 6 It is a schematic diagram of the overall upward sectional structure of the steam turbine circulating water residue filtering device of the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0029] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0030] Example 1

[0031] Reference Figures 1 to 4 , which is the first embodiment of the present invention, provides a steam turbine circulating water residue filtering device, which includes a supporting mechanism 100, a water inlet mechanism 200 and a water storage mechanism 300.

[0032] Among them, the support mechanism 100 includes a base 101 for support, a circulation pipe 102 extending from one side of the base 101 to the other side, a water filtration unit 103 that can be pulled out and arranged on the outer surface of the base 101, a drainage pipe 104 arranged on both sides of the base 101, a wave pushing unit 105 arranged in the base 101, and a support block 106 arranged in the base 101.

[0033] Through the circulation pipe 102, an external pump body can be used, or the peristaltic unit 204 set inside can be used to circulate the circulating water through the device, or the circulating water filtered by the device can be connected to the circulation pipe 102 through a pipeline for circulation, and the wave pushing unit 105 can be used to allow the pressure to pass through the filtered water unit 103 for filtration and be discharged by the drain pipe 104 to achieve filtration.

[0034] During use, the water inlet mechanism 200 is arranged at one end of the base 101, and includes a water guide unit 201 fixed on the outer surface of the base 101, a stirring unit 202 installed inside the water guide unit 201, a rotating shaft unit 203 that cooperates with the stirring unit 202 and is arranged in the base 101, and a peristaltic unit 204 that is arranged in the base 101 and the support block 106 and cooperates with the rotating shaft unit 203.

[0035] At the same time, when the circulating water to be filtered enters, it is introduced into the water guide unit 201 by an external pressure pump, and the stirring unit 202 is driven to rotate by the impact of the water flow, and the shaft unit 203 is driven to rotate, so that the shaft unit 203 can drive the peristaltic unit 204 to work, so that the peristaltic unit 204 can intermittently squeeze the circulation pipe 102, thereby replacing the work of the peristaltic pump, saving economic expenses and reducing manpower without the need for maintenance.

[0036] Furthermore, the water storage mechanism 300 is arranged on the outer surface of the base 101, which includes a water storage unit 301 arranged at one end of the base 101, a water limiting unit 302 arranged at the water outlet end of the water storage unit 301, and a water retaining unit 303 installed in the water storage unit 301 and extending to the inside of the drain pipe 104.

[0037] When the wave pushing unit 105 is working, the wave pushing unit 105 can effectively generate intermittent thrust, thereby pushing the water retaining unit 303 to work, and utilizing the water limiting unit 302 to intermittently introduce liquid from the water storage unit 301. The water storage unit 301 can store cold water or other cooling media to cool the filtered circulating water.

[0038] Example 2

[0039] Reference Figures 1 to 5 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the water inlet method is integrated.

[0040] During use, the water guide unit 201 includes a water inlet bucket 201a arranged on the outer surface of the base 101, a first water inlet pipe 201b and a second water inlet pipe 201c arranged at both ends of the outer surface of the water inlet bucket 201a, and a cover plate 201d for covering arranged on the outer surface of the water inlet bucket 201a. The first water inlet pipe 201b and the second water inlet pipe 201c can both be used for water intake, and the two are arranged at symmetrical ends and have different heights.

[0041] Either the first water inlet pipe 201b or the second water inlet pipe 201c can be connected to an external pressure pump, or both can be connected, and water rushes towards the water inlet bucket 201a.

[0042] The stirring unit 202 includes a cylinder 202a limited on the base 101 and located in the water inlet bucket 201a, a fan plate 202b arranged on the outer surface of the cylinder 202a, a fixing plate 202c arranged in the cylinder 202a, and a protrusion 202d fixed on the fixing plate 202c.

[0043] The water rushing into the bucket will push the fan blade 202b, so that the fan blade 202b is continuously pushed to continue rotating in the cylinder 202a after receiving the impact force, and the cylinder 202a can drive the fixed plate 202c and the protrusion 202d to rotate.

[0044] Another embodiment of the cylinder 202a can also be set as a filter cylinder, which can filter water and prevent impurities from entering the cylinder 202a, so that the water in the cylinder 202a can be directly extracted.

[0045] The rotating shaft unit 203 includes a support shaft 203a that is limited on the base 101 and can rotate and cooperates with the protrusion 202d, an elliptical block 203b fixed on the support shaft 203a and extending to one end inside the base 101, a disc block 203c arranged at the end of the support shaft 203a, and a protrusion 203d arranged on the disc block 203c.

[0046] When the convex block 202d rotates, the convex block 202d can drive the support shaft 203a to rotate, so that the support shaft 203a can drive the elliptical block 203b to rotate, and also drive the disc block 203c to rotate, so that the disc block 203c drives the convex column 203d to rotate.

[0047] Compared with Example 1, further, the peristaltic unit 204 includes a driving component 204a connected to the base 101 and a peristaltic part 204b arranged in the driving component 204a and confined in the support block 106, and the outer surface of the peristaltic part 204b is in contact with the circulation pipe 102; the driving component 204a includes a circular block 204a-1 connected to the base 101 through a rotating shaft and a groove 204a-2 circumferentially opened on the outer surface of the circular block 204a-1, and the groove 204a-2 can cooperate with the boss 203d.

[0048] During the rotation process, the boss 203d will be intermittently stuck into the groove 204a-2, thereby driving the circular block 204a-1 to rotate intermittently. At the same time, the circular block 204a-1 can rotate a quarter of a circle. Through continuous rotation, the circular block 204a-1 rotates intermittently, thereby intermittently squeezing the circulation tube 102 through the peristaltic member 204b, so that the circulation tube 102 can be effectively transported by extrusion and peristalsis, replacing the work of the delivery pump.

[0049] The remaining structures are the same as those of Example 1.

[0050] Example 3

[0051] Reference Figure 1 、 2 and 4, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that it adopts an overall filtering method.

[0052] During use, the water filtering unit 103 includes a fixing box 103 a extending to the outer surface of the base 101 and a filtering box 103 b fixed to the end of the fixing box 103 a and located below the water inlet F opened in the base 101 .

[0053] The wave pushing unit 105 includes a positioning plate 105a fixed on the base 101, a compression spring 105b arranged on the outer surface of the positioning plate 105a, and a wave pushing plate 105c fixed on one side surface of the compression spring 105b, and the outer surface of the wave pushing plate 105c is in contact with the elliptical block 203b.

[0054] The continuous rotation of the elliptical block 203b can intermittently squeeze the wave-pushing plate 105c through the arc of its outer surface, so that the wave-pushing plate 105c rotates back and forth under the action of the compression spring 105b, thereby causing the wave-pushing plate 105c to continuously form waves to impact the filter box 103b, so that the water is pushed and the impurities inside can be effectively filtered under the pressure shock to improve the filtering effect.

[0055] Compared with Example 2, further, the water storage unit 301 includes a water tank 301a arranged at both ends of the outer surface of the base 101, a water storage cavity 301b arranged inside the water tank 301a, and a water inlet valve 301c arranged on the top of the water tank 301a; the water limiting unit 302 includes a one-way water inlet valve 302a and a one-way water outlet valve 302b respectively fixed at the ends of the water storage cavity 301b, and the water blocking unit 303 includes a water blocking part 303a limited in the water tank 301a and extending to the drain pipe 104, and a top pressure spring 303b arranged in the water tank 301a and connected to the water blocking part 303a.

[0056] Under the impact of wave after wave, the water waves will hit the water retaining member 303a under the action of the top pressure spring 303b, so that the water retaining member 303a can be effectively pushed a certain distance, so that the water retaining member 303a rotates back and forth between the one-way water inlet valve 302a and the one-way water outlet valve 302b, forming negative pressure and pushing pressure. Under negative pressure, the cooling medium is sucked into the water storage chamber 301b through the one-way water inlet valve 302a. Under pushing pressure, the sucked cooling medium is pushed into the drain pipe 104, thereby superimposing it with the filtered water to form cooling, thereby improving the heat exchange effect of the circulating water.

[0057] The remaining structures are the same as those of Example 2.

[0058] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A steam turbine circulating water residue filter device, characterized by: include, A support mechanism (100) comprising a base (101) for supporting, a circulation pipe (102) extending from one side of the base (101) to the other side, a water filter unit (103) that can be pulled out and arranged on the outer surface of the base (101), drainage pipes (104) arranged on both sides of the base (101), a wave pushing unit (105) arranged in the base (101), and a support block (106) arranged in the base (101); A water inlet mechanism (200) is provided at one end of the base (101), comprising a water guide unit (201) fixed to the outer surface of the base (101), a stirring unit (202) installed inside the water guide unit (201), a rotating shaft unit (203) cooperating with the stirring unit (202) and provided in the base (101), and a peristaltic unit (204) provided in the base (101) and the support block (106) and cooperating with the rotating shaft unit (203); A water storage mechanism (300) is provided on the outer surface of the base (101), comprising a water storage unit (301) provided at one end of the base (101), a water limiting unit (302) provided at the water outlet end of the water storage unit (301), and a water retaining unit (303) installed in the water storage unit (301) and extending to the interior of the drain pipe (104); The rotating shaft unit (203) comprises a support shaft (203a) limited on the base (101) to be rotatable and cooperating with a protrusion (202d), an elliptical block (203b) fixed to the support shaft (203a) and extending to one end inside the base (101), a circular disc block (203c) arranged at the end of the support shaft (203a), and a protrusion (203d) arranged on the circular disc block (203c); The peristaltic unit (204) comprises a driving assembly (204a) connected to the base (101) and a peristaltic member (204b) disposed in the driving assembly (204a) and confined within the support block (106), and an outer surface of the peristaltic member (204b) is in contact with the circulation tube (102); The driving assembly (204a) comprises a circular block (204a-1) connected to the base (101) via a rotating shaft and a groove (204a-2) circumferentially opened on the outer surface of the circular block (204a-1), and the groove (204a-2) can cooperate with the boss (203d); The wave-pushing unit (105) comprises a positioning plate (105a) fixed on the base (101), a compression spring (105b) arranged on the outer surface of the positioning plate (105a), and a wave-pushing plate (105c) fixed on one side surface of the compression spring (105b), wherein the outer surface of the wave-pushing plate (105c) is in contact with the elliptical block (203b); When circulating water to be filtered enters, it is introduced into the water guide unit (201) by using an external pressure pump, and the stirring unit (202) is driven to rotate by the impact of the water flow, and the rotating shaft unit (203) is driven to rotate, so that the rotating shaft unit (203) can drive the peristaltic unit (204) to work, so that the peristaltic unit (204) can intermittently squeeze the circulation pipe (102), thereby replacing the work of the peristaltic pump; When the wave pushing unit (105) is working, the wave pushing unit (105) can effectively generate intermittent thrust, thereby pushing the water retaining unit (303) to work, and utilizing the water limiting unit (302) to intermittently introduce liquid from the water storage unit (301). The water storage unit (301) can store cold water or other cooling media to cool the filtered circulating water.

2. The steam turbine circulating water residue filter device according to claim 1, characterized in that: The water guide unit (201) comprises a water inlet bucket (201a) arranged on the outer surface of the base (101), a first water inlet pipe (201b) and a second water inlet pipe (201c) arranged at both ends of the outer surface of the water inlet bucket (201a), and a cover plate (201d) arranged on the outer surface of the water inlet bucket (201a) for covering.

3. The steam turbine circulating water residue filter device according to claim 2, characterized in that: The first water inlet pipe (201b) and the second water inlet pipe (201c) can both be used for water intake, are arranged at two symmetrical ends, and have different heights.

4. The steam turbine circulating water residue filter device according to claim 2 or 3, characterized in that: The stirring unit (202) comprises a cylinder (202a) limited on the base (101) and located in the water inlet bucket (201a), a fan blade (202b) arranged on the outer surface of the cylinder (202a), a fixing plate (202c) arranged in the cylinder (202a), and a protrusion (202d) fixed on the fixing plate (202c).

5. The steam turbine circulating water residue filtering device according to claim 1, characterized in that: The water storage unit (301) comprises a water storage tank (301a) arranged at both ends of the outer surface of the base (101), a water storage cavity (301b) arranged inside the water storage tank (301a), and a water inlet valve (301c) arranged on the top of the water storage tank (301a); The water limiting unit (302) comprises a one-way water inlet valve (302a) and a one-way water outlet valve (302b) respectively fixed at the ends of the water storage chamber (301b).

6. The steam turbine circulating water residue filtering device according to claim 5, characterized in that: The water retaining unit (303) comprises a water retaining member (303a) confined in the water storage tank (301a) and extending into the drain pipe (104), and a pressure spring (303b) disposed in the water storage tank (301a) and connected to the water retaining member (303a).

7. The steam turbine circulating water residue filtering device according to any one of claims 5 to 6, characterized in that: The water filtering unit (103) comprises a fixing box (103a) extending to the outer surface of the base (101) and a filtering box (103b) fixed to the end of the fixing box (103a) and located below the water inlet (F) opened on the base (101).

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