Intelligent valve control device for condensate water recovery pipeline

Abstract

The invention discloses an intelligent valve control device for a condensate water recovery pipeline. The intelligent valve control device comprises a water storage unit, a connecting pipe and a filtering mechanism. The bottom of one end of the water storage unit is respectively communicated with a water inlet pipe and a water outlet pipe for feeding and returning water; the connecting pipe is communicated with a water inlet of the water inlet pipe; the filtering mechanism comprises a driving part, a separating part and a cleaning assembly; wherein the driving part is arranged at the top opening position of the connecting pipe; the driving part rotates after being impacted by external water flow; according to the invention, through the designed filtering mechanism, condensate water which comes from an upstream pipe network and is mixed with various solid impurities can be efficiently separated and intercepted before entering the core valve group and the water storage unit, and the process can fundamentally improve the working environment of all downstream key moving parts and containers; the filtering mechanism can prevent the valve from being continuously abraded by abrasive particles, so that the valve core and the sealing surface are kept smooth for a long time.

Description

Technical Field

[0001] This invention belongs to the field of condensate recovery technology, specifically relating to an intelligent valve control device for condensate recovery pipelines. Background Technology

[0002] The intelligent valve control device for condensate recovery pipelines is an automated control device used in steam heating or refrigeration systems. Its main function is to achieve efficient recovery and intelligent management of condensate. This device is typically installed on the condensate return pipeline and uses sensors to monitor the temperature, flow rate, or liquid level of the condensate in real time. It then uses automatic control valves (such as electric valves and solenoid valves) to intelligently regulate the pipeline's flow, thereby preventing steam leakage, preventing condensate accumulation, and ensuring smooth operation of the recovery system. It improves thermal energy utilization, reduces energy loss, minimizes water consumption and equipment corrosion, and is widely used in industrial boilers, heat exchange systems, central air conditioning, and other applications.

[0003] In long-term operating industrial steam systems, condensate recovery pipelines face severe challenges from pipe corrosion, equipment wear, and the water quality itself. These solid particles mixed in the water flow are mainly iron oxides such as magnetite and iron oxide. They are hard and have a wide particle size distribution. When this untreated condensate flows directly into the recovery device, impurities accumulate and scour the valve sealing surfaces, valve cores, and valve seats, leading to incomplete valve closure, increased internal leakage, abnormally high operating torque, and even jamming. This causes the critical flow cut-off function to fail. Furthermore, these tiny particles can enter the precision pump impeller chamber with the water flow. Under high-speed pump operation, these solid particles cause severe abrasive wear on the impeller and mechanical seals, significantly shortening the lifespan of the pump's core components. Simultaneously, uneven deposition of impurities in the pump casing and flow channels disrupts the hydraulic balance, causing abnormal vibration and noise. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent valve control device for condensate recovery pipelines, in order to solve the problem mentioned in the background art that the direct recovery of steam condensate containing solid impurities will wear down the valve sealing surface and the water pump impeller, causing leakage, jamming and equipment damage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent valve control device for condensate recovery pipeline, the intelligent valve control device comprising a water storage unit, a connecting pipe, and a filtration mechanism;

[0006] The bottom of one end of the water storage unit is connected to an inlet pipe and an outlet pipe for water inlet and return, respectively.

[0007] The connecting pipe is connected to the inlet of the water inlet pipe;

[0008] The filtration mechanism includes a drive unit, a separation unit, and a cleaning component;

[0009] in:

[0010] The drive unit is located at the top opening of the connecting pipe; after being impacted by external water flow, the drive unit generates a rotational motion.

[0011] The separating part is fixed directly below the driving part, and the separating part rotates synchronously with the driving part.

[0012] The cleaning component is placed inside the connecting pipe, and the entire cleaning component is located below the separation section.

[0013] As a preferred technical solution of the present invention, the drive unit includes an impeller, a transmission shaft, and a support frame;

[0014] The impeller is vertically arranged coaxially inside the connecting pipe; the bottom to the top of the impeller is hollow to reduce the weight of the impeller and enable it to rotate faster after being impacted by water flow. The impeller surface has multiple inclined blades that are evenly spaced, so when vertically downward-flowing condensate water passes through the impeller, it will drive the impeller to rotate.

[0015] The drive shaft is coaxially disposed inside the impeller, and the top end of the drive shaft is fixed to the top surface inside the impeller, while the bottom end of the drive shaft is fixed to the top end of the separation part. Therefore, when the impeller drives the drive shaft to rotate, the drive shaft will drive the separation part to rotate synchronously. The surface of the drive shaft is also fixed with an overlapping ring.

[0016] The support frame is movably sleeved on the drive shaft and supports the overlapping ring. The end of the support frame is fixed to the inner wall of the connecting pipe. By supporting the overlapping ring through the support frame, the position of the impeller is supported and placed, avoiding the impeller being suspended inside the connecting pipe. In actual installation, the support frame is first sleeved on the drive shaft, and then the bottom of the drive shaft is fixedly connected to the conical filter screen.

[0017] As a preferred technical solution of the present invention, the support frame is composed of a ring sleeved on the transmission shaft and support rods fixed at equal angles to the outer wall of the ring; the ends of the support rods constituting the support frame are fixed to the inner wall of the connecting pipe. The support frame can not only ensure the support of the impeller and the transmission shaft, but also not affect the water flow.

[0018] As a preferred technical solution of the present invention, the separation section includes a conical filter screen and a separation chamber;

[0019] The diameter of the conical filter screen gradually expands from top to bottom, and the top of the conical filter screen is fixed to the bottom end face of the drive shaft.

[0020] The separation chamber is fixed on the bottom end face of the conical filter screen. The outer wall of the separation chamber and the inner wall of the connecting pipe are configured in a non-contact dynamic seal. The outer diameter of the separation chamber is larger than the diameter of the bottom end face of the conical filter screen. Therefore, when the conical filter screen rotates, it rotates freely, while the separation chamber always fits against the inner wall of the connecting pipe when it rotates, thereby achieving a seal between the connecting pipe and the separation chamber.

[0021] As a preferred technical solution of the present invention, a guide groove is provided at an equal angle at the top of the separation chamber, and the guide groove extends obliquely downward to the inner wall of the separation chamber; a guide wall is formed at the bottom inner wall of the connecting pipe, which is below the guide groove. When the water flow impacts the impeller and drives the conical filter and the separation chamber to rotate, the impurities in the water flow will be filtered by the conical filter first, and a large amount of water flow will pass through the conical filter and directly enter the separation chamber near the center, thereby realizing the discharge of the water flow after filtering impurities. The impurities on the conical filter are washed downward by the rotating conical filter and the continuously downward conveyed condensate, and the impurities are guided into the guide groove. Since the separation chamber as a whole rotates with the conical filter, the impurities will adhere to the inner wall of the separation chamber and continue to descend after entering the separation chamber, and be discharged to the outside of the separation chamber through the guide wall.

[0022] As a preferred technical solution of the present invention, a sludge collection groove is provided inside the connecting pipe, and the bottom end face of the separation chamber overlaps with the top opening of the sludge collection groove;

[0023] The cleaning components are installed inside the sludge collection tank.

[0024] As a preferred technical solution of the present invention, the cleaning component is composed of a scraping component and a transmission component;

[0025] The scraper is rotatably mounted inside the sludge collection tank, while one end of the transmission component is placed outside the connecting pipe, and the other end is connected to the scraper for transmission.

[0026] As a preferred technical solution of the present invention, the scraping component is a ring plate, and a scraper is fixed at the top of the ring plate at equal angles, the scraper being in contact with the inner wall of the sludge collection tank; a drive rack is also fixed on the bottom end face of the ring plate.

[0027] The bottom end face of the sludge collection tank is provided with an annular groove. The transmission component includes a handwheel, one end of which is outside the connecting pipe and the other end extends into the connecting pipe. A drive gear is also fixed at the end of the handwheel, and the drive gear meshes with the drive rack.

[0028] The annular groove has a slot for the protruding drive gear, which enables the drive gear to mesh with the drive rack. A drain pipe is also connected to one side of the connecting pipe, which is connected to the sludge collection tank. A manual drain valve is installed on the drain pipe. In use, when the sludge collection tank receives impurities, the handwheel can be turned to rotate the annular plate. The annular plate then uses a scraper to discharge the impurities from the sludge collection tank through the drain pipe, thus cleaning the tank. It is worth noting that the water mainly flows out through the central area of ​​the connecting pipe, so the area of ​​the sludge collection tank is similar to a "still water zone" and impurities will not be carried out by the water flow.

[0029] As a preferred technical solution of the present invention, both the inlet pipe and the outlet pipe are equipped with manual valves and electrically controlled valves. The manual valves are connected to the water storage unit. By setting the manual valves, the inlet pipe and / or outlet pipe can be manually closed, while the electrically controlled valves mainly realize intelligent opening and closing.

[0030] As a preferred technical solution of the present invention, a control box is also provided outside the water storage unit. The control box is connected to the electric control valves on the water inlet pipe and the water outlet pipe, and the opening and closing of the electric control valves are controlled by the control box.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] In this invention, the designed filtration mechanism can efficiently separate and retain condensate from the upstream pipeline network, which contains various solid impurities, before it enters the core valve assembly and water storage unit. This process fundamentally improves the working environment of all critical moving parts and containers downstream. Because the filtration mechanism can prevent valves from being continuously worn by abrasive particles, it ensures that the valve core and sealing surface remain clean for a long time, greatly extending its maintenance-free operation cycle. In addition, the filtration mechanism can also provide near-solid particle-free inlet conditions, minimizing the risk of abnormal wear on precision components such as pump impellers and shaft seals, ensuring long-term stable pump efficiency, eliminating vibration and cavitation problems caused by impurities, and significantly improving its service life and reliability. Through the design of the filtration mechanism, the frequent clogging, wear, and failure of the condensate recovery system can be solved, resulting in a significant reduction in overall maintenance costs and production interruption risks. Attached Figure Description

[0033] Figure 1 A schematic diagram of the overall structure of the intelligent valve control device for condensate recovery pipeline;

[0034] Figure 2 This is a top-view structural diagram of the connecting pipe and the filter mechanism.

[0035] Figure 3 for Figure 2 Sectional view at AA;

[0036] Figure 4 for Figure 3 Enlarged view of region A in the middle;

[0037] Figure 5 This is a schematic diagram of the filtration mechanism;

[0038] Figure 6 This is a schematic diagram showing the connection between the impeller and the conical filter screen.

[0039] Figure 7 To clean up the top view of the components;

[0040] Figure 8 To clean up the top view of the component;

[0041] Figure 9 This is a cross-sectional view of the upper region of the connecting pipe.

[0042] In the picture:

[0043] 100. Water storage unit; 101. Inlet pipe; 102. Outlet pipe; 103. Manual valve; 104. Electrically controlled valve; 105. Control box;

[0044] 200, connecting pipe; 200a, sludge collection tank; 200b, annular groove;

[0045] 201. Sewage pipe;

[0046] 300. Impeller;

[0047] 301, drive shaft; 301a, lap ring;

[0048] 302. Support frame;

[0049] 400. Conical filter screen;

[0050] 500. Separation chamber;

[0051] 500a, guide groove; 500b, guide wall;

[0052] 601, Ring plate; 601a, Scraper; 601b, Drive rack;

[0053] 602, handwheel; 602a, drive gear. Detailed Implementation

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Please see Figures 1 to 9 The present invention provides a technical solution: an intelligent valve control device for condensate recovery pipeline, the intelligent valve control device including a water storage unit 100, a connecting pipe 200 and a filtration mechanism;

[0056] The bottom of one end of the water storage unit 100 is connected to an inlet pipe 101 and an outlet pipe 102 for water inlet and water return, respectively.

[0057] The connecting pipe 200 is connected to the inlet of the water inlet pipe 101;

[0058] The filtration mechanism includes a drive unit, a separation unit, and a cleaning component;

[0059] in:

[0060] The drive unit is located at the top opening of the connecting pipe 200; the drive unit generates a rotational motion after being impacted by external water flow.

[0061] The separation part is fixed directly below the drive part, and the separation part rotates synchronously with the drive part.

[0062] The cleaning component is placed inside the connecting pipe 200, and the entire cleaning component is located below the separation section.

[0063] In this embodiment, refer to Figure 3 , Figure 5 , Figure 6 The drive unit includes an impeller 300, a drive shaft 301, and a support frame 302;

[0064] The impeller 300 is vertically arranged coaxially inside the connecting pipe 200; the bottom to the top of the impeller 300 is hollow to reduce the weight of the impeller 300 and enable it to rotate faster after being impacted by water flow. The surface of the impeller 300 has multiple inclined blades that are evenly spaced. Therefore, when the vertically downward cascading condensate water passes through the impeller 300, it will drive the impeller 300 to rotate.

[0065] The drive shaft 301 is coaxially disposed inside the impeller 300, and the top end of the drive shaft 301 is fixed on the top end surface inside the impeller 300, while the bottom end of the drive shaft 301 is fixed to the top end of the separation part. Therefore, when the impeller 300 drives the drive shaft 301 to rotate, the drive shaft 301 will drive the separation part to rotate synchronously. The surface of the drive shaft 301 is also fixed with an overlapping ring 301a.

[0066] The support frame 302 is movably sleeved on the drive shaft 301 and supports the overlapping ring 301a. The end of the support frame 302 is fixed to the inner wall of the connecting pipe 200. By supporting the overlapping ring 301a through the support frame 302, the position of the impeller 300 is supported and placed, avoiding the impeller 300 being suspended inside the connecting pipe 200. In actual installation, the support frame 302 is first sleeved on the drive shaft 301, and then the bottom of the drive shaft 301 is fixedly connected to the conical filter screen 400. Of course, the bottom of the drive shaft 301 can also be designed with threads or buckles to facilitate pre-assembly with the separation part, and then the whole assembly is placed into the connecting pipe 200 and rests on the support frame 302.

[0067] In this embodiment, refer to Figure 5 and Figure 6 The support frame 302 consists of a ring sleeved on the drive shaft 301 and support rods fixed at equal angles to the outer wall of the ring. The ends of the support rods that make up the support frame 302 are fixed to the inner wall of the connecting pipe 200. The support frame 302 can not only support the impeller 300 and the drive shaft 301, but also will not affect the water flow.

[0068] In this embodiment, refer to Figure 5 and Figure 6 The separation section includes a conical filter screen 400 and a separation chamber 500;

[0069] The diameter of the conical filter screen 400 gradually expands from top to bottom, and the top end of the conical filter screen 400 is fixed to the bottom end face of the drive shaft 301.

[0070] The separation chamber 500 is fixed on the bottom end face of the conical filter screen 400. The outer wall of the separation chamber 500 and the inner wall of the connecting pipe 200 are configured in a non-contact dynamic seal, that is, a small gap, such as 0.5-2mm, is maintained between the outer wall of the separation chamber 500 and the inner wall of the connecting pipe 200. This gap is small enough to form a hydrodynamic pressure effect through the water film during rotation, effectively blocking most impurities from passing through, while not generating serious mechanical friction. A similar non-contact labyrinth structure can also be used at the overlap between the bottom end of the separation chamber 500 and the opening of the sludge collection tank 200a. Since the outer diameter of the separation chamber 500 is larger than the bottom end face diameter of the conical filter screen 400, the conical filter screen 400 rotates freely, while the separation chamber 500 is always in contact with the inner wall of the connecting pipe 200 during rotation, thereby achieving a seal between the connecting pipe 200 and the separation chamber 500.

[0071] In this embodiment, refer to Figure 3 and Figure 4The separation chamber 500 has a guide groove 500a at an equal angle at its top, which extends downwards at an angle to the inner wall of the separation chamber 500. A guide wall 500b is formed on the inner wall of the bottom of the connecting pipe 200, located below the guide groove 500a. When the water flow impacts the impeller 300 and drives the conical filter screen 400 and the separation chamber 500 to rotate, impurities in the water flow are first filtered by the conical filter screen 400, while a large amount of water flows through the conical filter screen 400 and directly into the separation chamber. The cavity 500 is located near the center, thereby allowing the filtered water to be discharged. The impurities on the conical filter screen 400 are flushed downwards by the rotating conical filter screen 400 and the continuously flowing condensate, and are guided into the guide groove 500a. Since the separation cavity 500 rotates along with the conical filter screen 400, the impurities will adhere to the inner wall of the separation cavity 500 and continue to descend after entering the separation cavity 500, and will be discharged to the outside of the separation cavity 500 through the guide wall 500b.

[0072] In this embodiment, refer to Figure 4 The connecting pipe 200 has a sludge collection tank 200a inside, and the bottom end face of the separation chamber 500 overlaps with the top opening of the sludge collection tank 200a.

[0073] The cleaning components are located inside the sludge collection tank 200a.

[0074] In this embodiment, the cleaning component consists of a scraping component and a transmission component;

[0075] The scraper is rotatably mounted inside the sludge collection tank 200a, while one end of the transmission component is placed outside the connecting pipe 200, and the other end is connected to the scraper for transmission.

[0076] In this embodiment, refer to Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 9 The scraping component is a ring plate 601. A scraper 601a is fixed at the top of the ring plate 601 at equal angles. The scraper 601a is in contact with the inner wall of the sludge collection tank 200a. A drive rack 601b is also fixed at the bottom end face of the ring plate 601.

[0077] The bottom end face of the sludge collection tank 200a is provided with an annular groove 200b. The transmission component includes a handwheel 602, one end of which is located outside the connecting pipe 200 and the other end extends into the connecting pipe 200. A drive gear 602a is also fixed at the end of the handwheel 602. The drive gear 602a is meshed with the drive rack 601b. An O-ring is provided at the point where the shaft of the handwheel 602 passes through the side wall of the connecting pipe 200 to prevent condensate leakage.

[0078] The annular groove 200b has a groove for the protruding portion of the drive gear 602a, thereby enabling the drive gear 602a to mesh with the drive rack 601b. A drain pipe 201 is also connected to one side of the connecting pipe 200, which is connected to the sludge collection tank 200a. A manual drain valve is installed on the drain pipe 201. Various types of manual drain valves are available, and the appropriate type can be selected according to the actual situation; therefore, they are not shown in the figure. In use, when impurities are collected in the sludge collection tank 200a, the handwheel 602 can be turned, which drives the annular plate 601 to rotate. At this time, the annular plate 601 uses the scraper 601a to discharge the impurities inside the sludge collection tank 200a from the drain pipe 201, thus achieving cleaning. Since the entire condensate recovery system itself has a certain pressure, when the manual drain valve on the drain pipe 201 is opened for cleaning... A pressure difference is formed between the inside of the connecting pipe 200 and the outside. As long as the manual drain valve is opened, the water and impurities inside will be naturally discharged outward under pressure. In actual use, the upstream water inlet can also be temporarily closed or the system can be used during intermittent periods. That is, the electric control valve 104 or manual valve 103 on the inlet pipe 101 can be temporarily closed to stop or slow down the water flow in the connecting pipe 200, reduce the disturbance of the internal water flow, and then open the manual drain valve. Then turn the handwheel 602 to drive the scraper 601a to rotate, scrape the impurities deposited at the bottom of the sludge collection tank 200a and push them to the inlet of the drain pipe 201. At this time, the residual static pressure that may exist in the connecting pipe 200 will discharge the impurities that flow into the drain port along with a small amount of water. Observe the drain port until the discharge becomes clear water. Finally, close the manual drain valve, restore the upstream valve to open, and the system continues to operate normally.

[0079] It is worth noting that the water flow mainly exits through the central area of ​​the connecting pipe 200. Therefore, the area of ​​the sludge collection tank 200a is essentially a "still water zone," and impurities will not be carried out by the water flow. The specific principle of impurity erosion prevention is as follows:

[0080] When the water flow drives the impeller 300 and drives the conical filter screen 400 and the separation chamber 500 to rotate at high speed, the solid-liquid mixture entering the separation chamber 500 is separated in a strong centrifugal force field. The centrifugal force on solid impurities with a density greater than that of water is much greater than that on fluid viscosity. They are quickly thrown towards the outer inner wall of the separation chamber 500 and rotate and slide down the wall under the action of centrifugal force. At the same time, the main water flow is driven by the inertial force of axial flow under the pressure of inlet water. It tends to pass through the separation chamber 500 along the central path of least resistance and be discharged from the bottom outlet. Thus, a high-speed rotating solid boundary layer on the outer ring and a relatively straight core flow of purified water are formed in the separation chamber 500.

[0081] The sludge collection tank 200a is located directly below and on the outer side of this centrifugal separation area. Its top opening connects to the bottom edge of the separation chamber 500. Impurities thrown onto the inner wall of the separation chamber 500, after losing centrifugal support, either due to gravity or being pushed by subsequent impurities, slide down along the guide wall 500b and fall into the sludge collection tank 200a. Since the sludge collection tank 200a is located on the outermost radial side of the main channel and its inlet is located behind the guide wall 500b, the scouring effect of the high-speed main water flow on the eddies or backflow zones formed here is weak. Therefore, the water flow velocity inside the sludge collection tank 200a is extremely low, approximately a "still water zone". Impurities falling into this zone are not sufficiently rolled up by the flow velocity, so they can be stably deposited and will not be carried away by the downstream water flow.

[0082] In this embodiment, refer to Figure 1 Manual valve 103 and electric control valve 104 are installed on both the inlet pipe 101 and the outlet pipe 102. The manual valve 103 is connected to the water storage unit 100. The manual valve 103 can be used to manually close the inlet pipe 101 and / or the outlet pipe 102, while the electric control valve 104 mainly realizes intelligent opening and closing.

[0083] In this embodiment, a control box 105 is also provided outside the water storage unit 100. The control box 105 is connected to the electric control valve 104 on the water inlet pipe 101 and the water outlet pipe 102, and the opening and closing of the electric control valve 104 is controlled by the control box 105.

[0084] The working principle of the intelligent valve control device for condensate recovery pipelines is explained below:

[0085] External condensate is first delivered to the connecting pipe 200. At this time, the condensate impacts the impeller 300, causing the impeller 300 and the drive shaft 301 to rotate. When the water flows through the conical filter screen 400, the impurities in the condensate are filtered out, and the water continues to flow through the conical filter screen 400 and continue to be discharged downwards. The filtered impurities are discharged into the separation chamber 500 under the continuous rotation of the conical filter screen 400 and the impact of the water flow. As the separation chamber 500 rotates, it guides the impurities into the collection tank 200a. Then, by turning the handwheel 602, the scraper 601a can be driven to push the impurities into the drain pipe 201 for discharge. The filtered condensate enters the water storage unit 100 through the water inlet pipe 101. When the condensate in the water storage unit 100 is collected to a certain extent, it is discharged through the water outlet pipe 102.

[0086] Although embodiments of the invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent valve control device for condensate recovery pipelines, characterized in that: The intelligent valve control device includes a water storage unit (100), a connecting pipe (200), and a filtration mechanism; The bottom of one end of the water storage unit (100) is connected to an inlet pipe (101) for water inlet and an outlet pipe (102) for water return. The connecting pipe (200) is connected to the inlet of the water inlet pipe (101); The filtration mechanism includes a drive unit, a separation unit, and a cleaning component; in: The drive unit is located at the top opening of the connecting pipe (200); the drive unit generates a rotational motion after being impacted by external water flow. The separating part is fixed directly below the driving part, and the separating part rotates synchronously with the driving part. The cleaning component is placed inside the connecting pipe (200), and the entire cleaning component is located below the separation section.

2. The intelligent valve control device for condensate recovery pipeline according to claim 1, characterized in that: The drive unit includes an impeller (300), a drive shaft (301), and a support frame (302). The impeller (300) is vertically arranged coaxially inside the connecting pipe (200); the bottom to the top of the impeller (300) is hollow; The drive shaft (301) is coaxially disposed inside the impeller (300), and the top end of the drive shaft (301) is fixed on the inner top surface of the impeller (300), while the bottom end of the drive shaft (301) is fixed to the top end of the separation part. The surface of the drive shaft (301) is also fixed with an overlapping ring (301a). The support frame (302) is movably sleeved on the transmission shaft (301) and supports the overlapping ring (301a). The end of the support frame (302) is fixed on the inner wall of the connecting pipe (200).

3. The intelligent valve control device for condensate recovery pipeline according to claim 2, characterized in that: The support frame (302) consists of a ring sleeved on the transmission shaft (301) and support rods fixed at equal angles to the outer wall of the ring; the ends of the support rods constituting the support frame (302) are fixed to the inner wall of the connecting pipe (200).

4. The intelligent valve control device for condensate recovery pipeline according to claim 2, characterized in that: The separation section includes a conical filter screen (400) and a separation chamber (500); The diameter of the conical filter (400) gradually expands from top to bottom, and the top end of the conical filter (400) is fixed to the bottom end face of the drive shaft (301). The separation chamber (500) is fixed on the bottom end face of the conical filter (400). The outer wall of the separation chamber (500) and the inner wall of the connecting pipe (200) are configured in a non-contact dynamic sealing manner, and the outer diameter of the separation chamber (500) is larger than the diameter of the bottom end face of the conical filter (400).

5. The intelligent valve control device for condensate recovery pipeline according to claim 4, characterized in that: The top of the separation chamber (500) is provided with a guide groove (500a) at an equal angle, and the guide groove (500a) extends downward obliquely to the inner wall of the separation chamber (500); a guide wall (500b) is formed on the bottom inner wall of the connecting pipe (200), and the guide wall (500b) is located below the guide groove (500a).

6. The intelligent valve control device for condensate recovery pipeline according to claim 5, characterized in that: The connecting pipe (200) has a sludge collection tank (200a) inside, and the bottom end face of the separation chamber (500) overlaps with the top opening of the sludge collection tank (200a). The cleaning component is installed inside the sludge collection tank (200a).

7. The intelligent valve control device for condensate recovery pipeline according to claim 6, characterized in that: The cleaning assembly consists of a scraping component and a transmission component; The scraper is rotatably disposed inside the sludge collection tank (200a), while one end of the transmission component is placed outside the connecting pipe (200), and the other end is connected to the scraper for transmission.

8. The intelligent valve control device for condensate recovery pipeline according to claim 7, characterized in that: The scraping component is a ring plate (601), and a scraper (601a) is fixed at the top of the ring plate (601) at equal angles. The scraper (601a) is in contact with the inner wall of the sludge collection tank (200a). A drive rack (601b) is also fixed on the bottom end face of the ring plate (601). The bottom end face of the sludge collection tank (200a) is provided with an annular groove (200b). The transmission component includes a handwheel (602), one end of which is outside the connecting pipe (200) and the other end extends into the connecting pipe (200). A drive gear (602a) is also fixed at the end of the handwheel (602), and the drive gear (602a) meshes with the drive rack (601b). The annular groove (200b) is provided with a groove for the drive gear (602a) to protrude. A drain pipe (201) is also connected to one side of the connecting pipe (200). The drain pipe (201) is connected to the sludge collection tank (200a). A manual drain valve is also installed on the drain pipe (201).

9. The intelligent valve control device for condensate recovery pipeline according to claim 1, characterized in that: The inlet pipe (101) and outlet pipe (102) are each equipped with a manual valve (103) and an electric control valve (104), wherein the manual valve (103) is connected to the water storage unit (100).

10. The intelligent valve control device for condensate recovery pipeline according to claim 9, characterized in that: The water storage unit (100) is also equipped with a control box (105) on its exterior. The control box (105) is connected to the electric control valves (104) on the water inlet pipe (101) and the water outlet pipe (102).

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