Efficient continuous blowdown flash tank
By introducing a motor-driven rotating rod and scraper structure into the sewage expansion container, combined with the design of the sewage inlet pipe and spray nozzle, the problem of impurity deposition in sewage is solved, achieving efficient cleaning and heat recovery, and improving the equipment's processing capacity and stability.
Patent Information
- Application Number
- CN202422724216.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-08
AI Technical Summary
When existing sewage expansion tanks are in use, solid particles, suspended solids, and chemical substances in the sewage tend to deposit on the inner wall of the tank. Changes in flow rate and temperature affect the precipitation of impurities, leading to impurity adhesion and affecting equipment efficiency.
A high-efficiency continuous sewage discharge expansion tank was designed, equipped with a motor-driven rotating rod and scraper structure. The rotating rod drives the support rod and scraper to clean the inner wall of the tank, and sewage is evenly sprayed through the sewage inlet pipe and spray nozzle. Combined with the setting of heat recovery pipe and sewage discharge pipe, uniform sewage treatment and heat recovery are achieved.
It effectively prevents the deposition of impurities in sewage, improves the uniformity of sewage treatment and the efficiency of heat recovery, and meets the cleaning needs of daily use.
Smart Images

Figure CN223537619U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewage expansion container technology, specifically a high-efficiency continuous sewage expansion container. Background Technology
[0002] Continuous blowdown expanders, also known as continuous blowdown expansion tanks, should be designed and manufactured in accordance with the pressure vessel standard GB150-2011. Continuous blowdown expanders are connected to the continuous blowdown port of the boiler and are used to reduce pressure and expand the volume of the boiler's continuous blowdown. The blowdown water undergoes adiabatic expansion within the expander, separating into secondary steam and waste hot water. After expansion, pressure reduction, and heat exchange within the expander, the wastewater is discharged. The secondary steam is led out through a dedicated pipeline, while the waste hot water is automatically discharged through a float level valve or overflow regulating valve. Heat energy can be recovered and reused. The continuous blowdown volume is automatically adjusted according to changes in the boiler feedwater load to maintain a relatively stable blowdown rate.
[0003] In existing wastewater expansion tanks, the wastewater treated often contains various solid particles, suspended solids, chemicals, and microorganisms. These components tend to deposit on the inner wall of the tank during flow. The flow rate of wastewater in the expansion tank may vary due to factors such as pipeline design and valve opening. When the flow rate decreases, impurities are more likely to deposit. In some cases, changes in wastewater temperature may also affect the solubility of impurities, causing them to precipitate and adhere to the inner wall of the tank. Therefore, we need a more efficient and continuous wastewater expansion tank. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency continuous sewage discharge expansion container to solve the existing problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency continuous sewage discharge expansion tank, comprising a tank body; support legs disposed at the bottom of the tank body; a sewage discharge pipe disposed at the bottom of the tank body; a heat recovery pipe disposed on the outer wall of the tank body; a sewage conveying assembly disposed on one side of the tank body; the sewage conveying assembly comprising a sewage inlet pipe; a first conveying pipe fixedly connected to one end of the sewage inlet pipe; a second conveying pipe fixedly connected to the bottom of the first conveying pipe; a spray nozzle opened on the outer wall of the first conveying pipe; a scraper assembly disposed at the top of the tank body; the scraper assembly comprising a motor; a rotating rod fixedly connected to the output shaft of the motor via a coupling; a support rod fixedly connected to the outer wall of the rotating rod; an electric telescopic rod fixedly connected to one side of the support rod; and a scraper fixedly connected to one end of the electric telescopic rod.
[0006] Preferably, the sewage inlet pipe is provided with a first conveying pipe and a second conveying pipe, and the first conveying pipe is located at the top of the second conveying pipe.
[0007] Preferably, the first conveying pipe has multiple spray nozzles, and the multiple spray nozzles are evenly spaced on the outer wall of the first conveying pipe.
[0008] Preferably, the tank has three support legs, and the three support legs are evenly spaced at the bottom of the tank.
[0009] Preferably, the tank body forms a rotating structure through a motor and a rotating rod, and the output end of the motor passes through the top of the tank body and is connected to the rotating rod.
[0010] Preferably, the support rod forms a telescopic structure with the scraper via an electric telescopic rod, and the electric telescopic rod is disposed between the support rod and the scraper.
[0011] Preferably, there are two scrapers, and the two scrapers are symmetrically arranged with the vertical line of the tank as the axis of symmetry.
[0012] Compared with the prior art, the beneficial effects of this utility model are: this efficient continuous sewage discharge expansion container,
[0013] (1) It is equipped with a drive motor that can drive the rotating rod to rotate, which can drive the support rod to rotate, and the support rod can drive the scraper to stir the sewage. When cleaning is required, the electric telescopic rod can be activated, which can drive the scraper to move under the support of the support rod. The scrapers on both sides can be attached to the inner wall of the tank, and the scraper can clean the inner wall of the tank, meeting people's daily use needs.
[0014] (2) A sewage inlet pipe is provided to transport sewage, and the sewage inlet pipe can be used to treat sewage by means of the first conveying pipe and the second conveying pipe. In addition, the sewage can be sprayed by means of the spray nozzles on the first conveying pipe and the second conveying pipe, which can spray the sewage evenly and improve the uniformity of the sewage spraying. The hot air can be discharged by means of the hot air recovery pipe, and the remaining sewage can be discharged by means of the sewage discharge pipe. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0016] Figure 2 This is a schematic diagram of the tank body and sewage discharge pipe structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the scraping assembly structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the first and second conveying pipes of this utility model.
[0019] In the diagram: 1. Tank body; 2. Support legs; 3. Sewage discharge pipe; 4. Heat recovery pipe; 5. Sewage conveying assembly; 501. Sewage inlet pipe; 502. First conveying pipe; 503. Second conveying pipe; 504. Spray nozzle; 6. Scraper assembly; 601. Motor; 602. Rotating rod; 603. Support rod; 604. Electric telescopic rod; 605. Scraper. Detailed Implementation
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0022] This utility model embodiment provides a high-efficiency continuous sewage discharge expansion tank, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the system includes a tank body 1; a support leg frame 2 located at the bottom of the tank body 1; a sewage discharge pipe 3 located at the bottom of the tank body 1; a heat recovery pipe 4 located on the outer wall of the tank body 1; a sewage conveying assembly 5 located on one side of the tank body 1; the sewage conveying assembly 5 includes an inlet pipe 501; one end of the inlet pipe 501 is fixedly connected to a first conveying pipe 502; the bottom of the first conveying pipe 502 is fixedly connected to a second conveying pipe 503; a spray nozzle 504 is provided on the outer wall of the first conveying pipe 502; a scraper assembly 6 located at the top of the tank body 1; the scraper assembly 6 includes a motor 601; the output shaft of the motor 601 is fixedly connected to a rotating rod 602 via a coupling; a support rod 603 is fixedly connected to the outer wall of the rotating rod 602; an electric telescopic rod 604 is fixedly connected to one side of the support rod 603; and a scraper 605 is fixedly connected to one end of the electric telescopic rod 604.
[0023] Specifically, in this embodiment, the solution mainly includes a motor 601 that can drive a rotating rod 602 to rotate, which in turn drives a support rod 603 to rotate. The support rod 603 can then drive a scraper 605 to agitate the sewage. When cleaning is required, an electric telescopic rod 604 can be activated. Supported by the support rod 603, the electric telescopic rod 604 can move the scraper 605, allowing the scrapers 605 on both sides to adhere to the inner wall of the tank 1 and clean the inner wall of the tank 1, thus meeting people's daily use needs.
[0024] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a first conveying pipe 502 and a second conveying pipe 503 are provided inside the sewage inlet pipe 501. The first conveying pipe 502 is located at the top of the second conveying pipe 503. The first conveying pipe 502 has multiple spray nozzles 504, and the multiple spray nozzles 504 are evenly spaced on the outer wall of the first conveying pipe 502.
[0025] In this embodiment, the connection between the sewage inlet pipe 501 and the first conveying pipe 502 is enhanced, so that the sewage inlet pipe 501 can convey sewage by relying on the first conveying pipe 502 and the second conveying pipe 503, and the sewage can be sprayed out evenly by relying on the uniformly arranged spray nozzles 504.
[0026] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, there are three support legs 2 on the tank body 1, and the three support legs 2 are evenly spaced at the bottom of the tank body 1.
[0027] In this embodiment, the tank body 1 can be supported by setting support legs 2, and the support stability of the tank body 1 can be effectively improved by relying on the three support legs 2.
[0028] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the tank 1 forms a rotating structure through the motor 601 and the rotating rod 602, and the output end of the motor 601 passes through the top of the tank 1 and the rotating rod 602 for connection.
[0029] In this embodiment, by providing a motor 601, the motor 601 can drive the rotating rod 602 to rotate inside the tank 1.
[0030] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the support rod 603 forms a telescopic structure with the scraper 605 via the electric telescopic rod 604, and the electric telescopic rod 604 is set between the support rod 603 and the scraper 605. There are two scrapers 605, and the two scrapers 605 are symmetrically arranged with the vertical line of the tank body 1 as the axis of symmetry.
[0031] In this embodiment, the connection between the support rod 603 and the electric telescopic rod 604 is enhanced, so that the electric telescopic rod 604 can drive the scraper 605 to move under the support of the support rod 603, and the scraper 605 can scrape and clean the inner wall of the tank 1.
[0032] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.
[0033] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.
[0034] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A high-efficiency continuous sewage discharge expansion tank, characterized in that: Including the tank body (1); Support legs (2) are provided at the bottom of the tank (1); Wastewater discharge pipe (3) is provided at the bottom of the tank (1); A heat recovery pipe (4) is installed on the outer wall of the tank (1); A sewage conveying assembly (5) is provided on one side of the tank (1); the sewage conveying assembly (5) includes an inlet pipe (501); one end of the inlet pipe (501) is fixedly connected to a first conveying pipe (502); the bottom of the first conveying pipe (502) is fixedly connected to a second conveying pipe (503); a spray nozzle (504) is provided on the outer wall of the first conveying pipe (502); A scraping assembly (6) is provided on the top of the tank body (1); the scraping assembly (6) includes a motor (601); the output shaft of the motor (601) is fixedly connected to a rotating rod (602) via a coupling; a support rod (603) is fixedly connected to the outer wall of the rotating rod (602); an electric telescopic rod (604) is fixedly connected to one side of the support rod (603); a scraper (605) is fixedly connected to one end of the electric telescopic rod (604).
2. The high-efficiency continuous sewage discharge expansion tank according to claim 1, characterized in that: The inlet pipe (501) is provided with a first conveying pipe (502) and a second conveying pipe (503), and the first conveying pipe (502) is located at the top of the second conveying pipe (503).
3. The high-efficiency continuous sewage discharge expansion tank according to claim 1, characterized in that: The first delivery pipe (502) has multiple spray nozzles (504), and the multiple spray nozzles (504) are arranged at equal distances on the outer wall of the first delivery pipe (502).
4. The high-efficiency continuous sewage discharge expansion tank according to claim 1, characterized in that: The tank (1) has three support legs (2), and the three support legs (2) are evenly spaced at the bottom of the tank (1).
5. The high-efficiency continuous sewage discharge expansion tank according to claim 1, characterized in that: The tank (1) is connected to the rotating rod (602) by a motor (601), and the output end of the motor (601) is connected to the top of the tank (1) and the rotating rod (602).
6. The high-efficiency continuous sewage discharge expansion tank according to claim 1, characterized in that: The support rod (603) forms a telescopic structure with the scraper (605) through the electric telescopic rod (604), and the electric telescopic rod (604) is arranged between the support rod (603) and the scraper (605).
7. The high-efficiency continuous sewage discharge expansion tank according to claim 1, characterized in that: The number of scrapers (605) is two, and the two scrapers (605) are symmetrically arranged with the vertical line of the tank body (1) as the axis of symmetry.