A waste heat power generation steam exhaust condensate water recovery device

Abstract

This utility model relates to the technical field of condensate recovery devices, specifically to a waste heat power generation exhaust steam condensate recovery device, comprising a tank and an exhaust steam inlet and condensate outlet provided on the tank. The tank also contains a condensation heat exchange unit, and a drain outlet is provided on the bottom side of the tank. The recovery device further includes a guide plate located inside the tank, positioned below the condensation heat exchange unit. The guide plate has a V-shaped structure. During use, impurities and dirt that may be carried in the condensate accumulate on the surface of the filter box. The rotation of the brush roller causes its bristles to physically scrape and wash the surface of the filter box. Simultaneously, a backflow airflow pipe extending into the inner cavity of the filter box sprays backflow airflow onto the surface or internal structure of the filter box, thereby blowing away the dirt stripped by the brush roller from the surface of the filter box, preventing its re-adhesion, and finally discharging it through the drain outlet, achieving fully automatic sewage treatment without manual intervention.

Description

Technical Field

[0001] This utility model relates to the technical field of condensate recovery devices, and in particular to a waste heat power generation exhaust steam condensate recovery device. Background Technology

[0002] After the steam has done its work in the waste heat recovery process, it becomes low-temperature, low-pressure saturated or slightly superheated steam, which is called exhaust steam. The exhaust steam will be further condensed into water in the vacuum condenser by the cooling medium. The condensate may contain impurities, corrosion products or additives dissolved from the steam system. These contaminants will affect the quality of the condensate and thus damage subsequent treatment equipment (such as boilers). In order to purify the condensate, the dripping condensate needs to be filtered.

[0003] For example, utility model patent application number 202321196585.X discloses a waste steam condensate recovery tank, including a tank body; multiple sets of support legs are fixed to the bottom of the tank body, and the support legs are inclined outwards; an air inlet is opened on one side of the tank body; a cooling pipe is fixed to one side of the tank body, and the cooling pipe runs through the surface of the tank body. Through the fan blade structure design, it is not only easy to operate, but also can quickly cool the waste steam under long-term high-load operation, thereby accelerating the formation of condensate and improving the cooling effect. A filter box is used to filter the dripping condensate; however, the method of filtering by the filter box alone is not only easy to clog the filter holes, but also requires manual disassembly and cleaning after shutdown, which affects the operation of the system. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a waste heat power generation exhaust steam condensate recovery device to solve the technical problem that the existing technology of simply filtering through a filter box is not only prone to filter clogging, but also requires manual disassembly and cleaning after shutdown, which affects the operation of the system.

[0005] To achieve the above objectives, this utility model provides a waste heat power generation exhaust steam condensate recovery device, including a tank and an exhaust steam inlet and a condensate outlet disposed on the tank. The tank also contains a condensation heat exchange unit, and a drain outlet is provided on the bottom side of the tank. The recovery device further includes:

[0006] A guide plate is provided inside the tank, and the guide plate is positioned below the condensation heat exchange unit. The guide plate is arranged in a V-shape.

[0007] A filter box located in the middle of the guide plate;

[0008] Rotate the brush roller located inside the tank, the brush roller engaging with the surface of the filter box;

[0009] A backflow air pipe is provided on the side of the tank body, and the outlet of the backflow air pipe extends to the side of the filter box for spraying backflow air onto the surface of the filter box.

[0010] Furthermore, a drive motor is provided on the outer side of the tank, and a rotating shaft is coaxially mounted on the output end of the drive motor, with the brush roller coaxially mounted on the rotating shaft.

[0011] Furthermore, there are two tanks, and each of the two tanks is equipped with a condensation heat exchange unit.

[0012] Furthermore, all the condensation heat exchange units have a serpentine structure, and the condensation heat exchange units maintain circulating heat exchange through a circulating pump.

[0013] Furthermore, grooves are evenly distributed on the side of the guide plate near the drain outlet, and the grooves correspond to the area above the drain outlet.

[0014] Furthermore, the middle part of the filter box has a cavity layered structure, which is connected to the top filter hole, and the outlet end of the backflow air pipe extends into the cavity layered structure.

[0015] Furthermore, the condensate outlet is connected to a storage tank, and the drain outlet is connected to a drain valve.

[0016] Furthermore, the bristles of the brush roller are made of high-temperature resistant and corrosion-resistant synthetic fiber material.

[0017] The beneficial effects of this utility model are as follows: When in use, impurities and dirt that may be carried in the condensate accumulate on the surface of the filter box. The rotation of the brush roller causes the bristles on it to physically scrape and wash the surface of the filter box. At the same time, the backflow airflow pipe extending into the inner cavity of the filter box sprays backflow airflow onto the surface of the filter box or its internal structure. This blows the dirt stripped off by the brush roller away from the surface of the filter box, preventing it from re-adhering, and finally discharges it from the drain port, achieving fully automatic sewage treatment without manual intervention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the tank structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the tank body from another perspective in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the tank in this utility model;

[0023] Figure 5 This is a schematic diagram of another part of the internal structure of the tank in this utility model.

[0024] The diagram is marked as follows:

[0025] 1. Tank body; 2. Exhaust steam inlet; 3. Condensate outlet; 4. Condensation heat exchange unit; 5. Drain outlet; 6. Baffle plate; 7. Filter box; 8. Brush roller; 9. Backflow air pipeline; 10. Drive motor; 11. Rotary shaft; 12. Circulation pump; 13. Trench; 14. Storage tank; 15. Drain valve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] The first aspect of this utility model proposes a waste heat power generation exhaust steam condensate recovery device, such as... Figure 1-5 As shown, the device includes a tank 1, an exhaust steam inlet 2 and a condensate outlet 3 located on the tank 1, a condensation heat exchange unit 4 inside the tank 1, and a drain outlet 5 on the bottom side of the tank 1. The recovery device also includes:

[0029] A guide plate 6 is installed inside the tank 1. The guide plate 6 is positioned below the condensation heat exchange unit 4 and is arranged in a V-shape.

[0030] A filter box 7 is located in the middle of the guide plate 6;

[0031] Rotate the brush roller 8 located inside the tank 1, so that the brush roller 8 fits into the surface of the filter box 7;

[0032] A backflow air pipe 9 is provided on the side of the tank 1. The outlet end of the backflow air pipe 9 extends to the side of the filter box 7 and is used to spray backflow air onto the surface of the filter box 7.

[0033] In this embodiment, during use, exhaust steam is introduced into the tank 1 through the exhaust steam inlet 2. The exhaust steam is condensed into water by the condensation heat exchange unit 4 set inside the tank 1. The condensed water flows into the middle through the V-shaped guide plate 6 at the bottom, and then passes through the filter box 7 to filter the condensate. Impurities and dirt that may be carried in the condensate accumulate on the surface of the filter box 7. The rotation of the brush roller 8 causes the bristles on it to physically scrape and wash the surface of the filter box 7. At the same time, the backflow airflow pipe 9 extending into the inner cavity of the filter box 7 sprays backflow airflow onto the surface or internal structure of the filter box 7, thereby blowing away the dirt peeled off by the brush roller 8 from the surface of the filter box 7 to prevent it from re-adhering. Finally, it is discharged from the drain port 5, achieving efficient automatic cleaning and sewage treatment.

[0034] In this embodiment, as Figure 2 , Figure 4 As shown, a drive motor 10 is provided on the outer side of the tank 1. A rotating shaft 11 is coaxially mounted on the output end of the drive motor 10. A brush roller 8 is coaxially mounted on the rotating shaft 11. The output end of the drive motor 10 drives the rotating shaft 11 to rotate in one direction, which in turn drives the brush roller 8 on the rotating shaft 11 to rotate synchronously. The rotation of the brush roller 8 causes the bristles on it to physically scrape and wash the surface of the filter box 7.

[0035] In this embodiment, as Figure 1 As shown, there are two tanks 1, and each tank 1 is equipped with a condensation heat exchange unit 4. Each tank 1 can operate independently or jointly through a control valve group to improve the processing capacity of the recycling device.

[0036] In this embodiment, as Figure 5 As shown, the condensing heat exchange unit 4 is a serpentine structure. The condensing heat exchange unit 4 maintains circulating heat exchange through the circulating pump 12. It has a large heat exchange area and good rigidity. The two ends of the serpentine structure of the condensing heat exchange unit 4 are connected to the inlet and outlet of the cooling medium, respectively. The cooling medium is driven by the circulating pump 12 to continuously circulate inside the condensing heat exchange unit 4 to maintain a high-efficiency heat exchange process and completely condense the exhaust steam.

[0037] In this embodiment, as Figure 4As shown, grooves 13 are evenly distributed on the side of the guide plate 6 near the sewage outlet 5. The grooves 13 correspond to the top of the sewage outlet 5. The function of the grooves 13 is to form a low-lying flow channel to guide the sewage and sludge that have gathered in the middle of the guide plate 6 to flow into the sewage outlet 5 more smoothly and in a more concentrated manner.

[0038] In this embodiment, as Figure 1 As shown, the middle part of the filter box 7 has a hollow layered structure, which is connected to the top filter holes. The dense filter holes are placed on the top of the filter box 7. Condensate can enter the interior of the filter box 7 through the filter holes and flow downwards, while impurities are intercepted on the outer surface of the filter holes. The outlet of the backwash airflow pipe 9 extends into the hollow layered structure, so that the backwash airflow is sprayed from the inside of the filter box 7 to the outside. This backwash method can effectively flush away the fine particles that are blocked in the filter holes and the dirt that is attached to the inner wall of the pores, achieving a deep cleaning effect.

[0039] In this embodiment, as Figure 1 As shown, the condensate outlet 3 is connected to the storage tank 14. The recovered condensate discharged from the condensate outlet 3 can be temporarily stored or buffered in the storage tank 14. The drain outlet 5 is connected to the drain valve 15 to realize automatic control of the drain process.

[0040] In this embodiment, as Figure 4 As shown, the bristles of brush roller 8 are made of high-temperature and corrosion-resistant synthetic fiber material, which can maintain stable physical properties and cleaning effect in the temperature, humidity and chemical environment of the device operation.

[0041] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0042] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste heat power generation exhaust steam condensate recovery device, comprising a tank (1) and an exhaust steam inlet (2) and a condensate outlet (3) disposed on the tank (1), wherein the tank (1) is further provided with a condensation heat exchange unit (4), characterized in that, The tank (1) is provided with a drain outlet (5) on the bottom side, and the recycling device also includes: A guide plate (6) is provided inside the tank (1), the guide plate (6) is placed below the condensation heat exchange unit (4), and the guide plate (6) is arranged in a V-shape; A filter box (7) is located in the middle of the guide plate (6); Rotate the brush roller (8) located inside the tank (1), and the brush roller (8) engages with the surface of the filter box (7); A backflow air pipe (9) is provided at the side end of the tank (1), and the outlet end of the backflow air pipe (9) extends to the side end of the filter box (7) for spraying backflow air onto the surface of the filter box (7).

2. The waste heat power generation exhaust steam condensate recovery device according to claim 1, characterized in that, The outer side of the tank (1) is provided with a drive motor (10), and the output end of the drive motor (10) is coaxially mounted with a rotating shaft (11), and the brush roller (8) is coaxially mounted on the rotating shaft (11).

3. The waste heat power generation exhaust steam condensate recovery device according to claim 1, characterized in that, There are two tanks (1), and each of the two tanks (1) is equipped with a condensation heat exchange unit (4).

4. The waste heat power generation exhaust steam condensate recovery device according to claim 3, characterized in that, The condensing heat exchange units (4) are all serpentine in shape, and the condensing heat exchange units (4) maintain circulating heat exchange through the circulating pump (12).

5. The waste heat power generation exhaust steam condensate recovery device according to claim 1, characterized in that, The guide plate (6) has grooves (13) evenly distributed on one side near the drain outlet (5), and the grooves (13) correspond to the top of the drain outlet (5).

6. The waste heat power generation exhaust steam condensate recovery device according to claim 1, characterized in that, The middle part of the filter box (7) is a cavity layered structure, which is connected to the top filter hole. The outlet end of the backflow air pipe (9) extends into the cavity layered structure.

7. The waste heat power generation exhaust steam condensate recovery device according to claim 1, characterized in that, The condensate outlet (3) is connected to a storage tank (14), and the drain outlet (5) is connected to a drain valve (15).

8. A waste heat power generation exhaust steam condensate recovery device according to claim 1, characterized in that, The bristles of the brush roller (8) are made of high-temperature resistant and corrosion-resistant synthetic fiber material.

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