Condensate recovery system and recovery method for steam delivery pipe

Abstract

This invention belongs to the field of condensate recovery, specifically relating to a condensate recovery system and method for steam transmission pipelines. The system includes a steam main pipe and an inlet pipe. The inlet pipe is fixedly connected to the steam main pipe, and a recovery assembly is installed on the inlet pipe. The recovery assembly includes a drain valve, which is fixedly connected to the inlet pipe. A filter pipe is fixedly installed at the end of the drain valve away from the inlet pipe, and a Y-type filter is fixedly installed at the end of the filter pipe away from the drain valve. An input pipe is fixedly connected to the Y-type filter. This condensate recovery system and method for steam transmission pipelines achieves full condensate recovery through the synergistic action of the recovery components. The recovered condensate can be reused according to production needs, effectively improving resource utilization efficiency, reducing fresh water consumption, and aligning with the concept of green production.

Description

Technical Field

[0001] This invention relates to the field of condensate recovery technology, specifically to a condensate recovery system and method for steam transmission pipelines. Background Technology

[0002] In industrial production, the steam main is the core pipeline for heat energy transmission and is widely used in many fields such as chemical industry, manufacturing, and energy. Its stable operation is directly related to the continuity of the production process and the efficiency of energy utilization. During daily operation and maintenance, due to various factors such as changes in ambient temperature, fluctuations in steam transmission load, and heat dissipation of the pipeline, condensate is very likely to accumulate in the steam main. If this condensate is not drained in time, it will cause water hammer in the pipeline, which can easily damage key components such as valves and pipe joints.

[0003] Currently, the existing treatment method mostly involves on-site operators opening the drain valve to discharge condensate locally, which has three major problems: First, the direct discharge of condensate cannot be recovered, resulting in a double waste of water resources and heat energy; second, after the condensate is discharged, high-temperature steam will leak out through the drain port, which not only wastes steam but also forms a large amount of mist on site, affecting the operator's visibility and increasing the ambient humidity, posing a risk of slipping; third, the drain valve needs to be frequently opened and closed to control the discharge, resulting in rapid valve wear, high maintenance costs, and the inability to achieve continuous and stable condensate treatment. In view of this, we propose a condensate recovery system and method for steam transmission pipelines. Summary of the Invention

[0004] The main objective of this invention is to provide a condensate recovery system and method for steam transmission pipelines, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a condensate recovery system for steam transmission pipes, comprising a steam main pipe and an inlet pipe. The inlet pipe is fixedly connected to the steam main pipe, and a recovery assembly is installed on the inlet pipe. The recovery assembly is equipped with an regulating component, and the recovery assembly includes: A drain valve is fixedly connected to the inlet pipe. A filter pipe is fixedly installed at the end of the drain valve away from the inlet pipe, and a Y-type filter is fixedly installed at the end of the filter pipe away from the drain valve. An input pipe is fixedly connected to the Y-type filter. A float-type drain valve is fixedly installed at the end of the input pipe away from the Y-type filter, and an output pipe is fixedly installed at the end of the float-type drain valve away from the input pipe. A check valve is fixedly connected to the output pipe. An inclined pipe is fixedly connected to the end of the check valve away from the output pipe. A pressure reducing valve is fixedly connected to the inclined pipe. A condensate tank is fixedly connected to the end of the pressure reducing valve away from the inclined pipe.

[0006] Preferably, a first pressure gauge is fixedly connected to the wall of the input pipe via a threaded joint, a second pressure gauge is fixedly connected to the wall of the output pipe via a threaded joint, a support frame is fixedly connected to the outer wall of the condensate tank, the bottom of the pressure reducing valve is fixedly connected to the top of the support frame, and the outer shell of the float-type steam trap is provided with a heat insulation layer with a thickness of 50mm rock wool.

[0007] Preferably, a transfer pipe is fixedly connected to the outer wall of the condensate tank, a solenoid valve is installed on the transfer pipe, a discharge pipe is fixedly connected to the bottom of the condensate tank, a switch is installed on the discharge pipe, a spring-loaded safety valve is fixedly connected to the top of the condensate tank, a breather valve is fixedly connected to the top of the condensate tank, and the outer surfaces of the inclined pipe, the input pipe, and the output pipe are coated with an epoxy coal tar anti-corrosion coating.

[0008] Preferably, the adjusting assembly includes a fixing ring, the bottom of which is fixedly connected to the top of the condensate tank, and an isolation cover is threadedly connected to the outer wall of the fixing ring.

[0009] Preferably, a sealing seat is provided below the isolation cover, the bottom of the sealing seat is fixedly connected to the top of the condensate tank, and a synchronous slide rod is slidably connected to the inner wall of the sealing seat, the synchronous slide rod passing through the top of the condensate tank.

[0010] Preferably, a buoyancy ball is fixedly connected to the bottom of the synchronous slide bar, a height block is fixedly connected to the top of the synchronous slide bar, and a right-angle bracket is fixedly connected to the top of the condensate tank.

[0011] Preferably, the outer wall of the right-angle bracket is slidably connected to a first mounting sleeve, the outer wall of the first mounting sleeve is fixedly mounted with a first inductive switch, and the inner wall of the first mounting sleeve is threadedly connected with a first abutting screw.

[0012] Preferably, the right-angle frame has a side groove, the inner wall of the side groove is welded with a measuring ruler, the outer wall of the right-angle frame is fixedly connected with a third inductive switch, the sealing seat is provided with a sealing ring placement groove, and a sealing ring is placed in the sealing ring placement groove.

[0013] Preferably, a second mounting sleeve is slidably connected to the outer wall of the right-angle bracket, the second mounting sleeve is located below the first mounting sleeve, a second inductive switch is fixedly installed on the outer wall of the second mounting sleeve, and a second abutment screw is threadedly connected to the inner wall of the second mounting sleeve.

[0014] A method for recovering condensate from a steam transmission pipeline condensate recovery system includes the following steps: S1. System preparation: Check the sealing of the connection between the steam main and the access pipe, and confirm that the recovery component, regulating component and all valves and instruments are installed in place; adjust the position of the induction switch in the regulating component as needed, open the spring safety valve and breather valve, close the switch on the discharge pipe, keep the drain valve in the normally open state, and complete the preparations before system startup.

[0015] S2. Condensate Recovery: The condensate in the steam main enters the recovery component through the inlet pipe. After being filtered and hydrophobically separated, it flows by gravity through the pipeline and is steadily discharged into the condensate tank after pressure reduction and regulation. During the process, the pipeline pressure is monitored by a pressure gauge, and the hydrophobic component automatically separates the condensate from the steam to prevent steam leakage.

[0016] S3. Liquid Level Control: When the liquid level in the condensate tank rises or falls, the buoyancy structure of the adjusting component drives the sensing element to automatically control the opening and closing of the solenoid valve on the transfer pipeline, thereby realizing the automatic discharge and cessation of condensate. If the liquid level reaches the limit position, an early warning is issued through the corresponding sensing switch, and the discharge pipeline can be manually operated for emergency drainage.

[0017] S4. System Maintenance: Daily monitoring of the working status of each component, periodic cleaning of impurities in the filter assembly, and inspection of the sealing and corrosion protection of pipelines and valves; when the system is shut down, close the drain valve, drain the remaining condensate in the condensate tank, and complete component inspection and maintenance.

[0018] This invention provides a condensate recovery system and method for steam transmission pipelines. It offers the following advantages: (1) The condensate recovery system and method for steam transmission pipes achieve full condensate recovery through the synergistic effect of the recovery components. The recovered condensate can be reused according to production needs, effectively improving the comprehensive utilization rate of resources, reducing the consumption of new water resources, and conforming to the concept of green production.

[0019] (2) The condensate recovery system and method for the steam transmission pipe effectively prevents high-temperature steam leakage, reduces on-site fog generation, ensures clear working visibility, reduces safety hazards caused by environmental humidity, creates a safer and more comfortable working environment, and improves overall operational safety through the synergistic effect of the float-type steam trap and the sealing structure.

[0020] (3) The condensate recovery system and recovery method of the steam transmission pipe can keep the drain valve in the open state, which does not require frequent manual operation, reduces valve wear, extends the service life of components, reduces maintenance frequency and cost, and at the same time reduces the daily workload of operators, making the operation and maintenance process simpler and more efficient, and ensuring continuous and stable production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic cross-sectional view of the access pipe and inclined pipe sections of the present invention; Figure 3 This is a cross-sectional view of the supporting frame and fixing ring of the present invention; Figure 4 This is a schematic cross-sectional view of the transfer pipe and discharge pipe of the present invention; Figure 5 This is a schematic cross-sectional view of the condensate tank and isolation cover of the present invention; Figure 6 This is a schematic cross-sectional view of the height block and right-angle frame of the present invention; Figure 7 This is a partial cross-sectional view of the first mounting sleeve and the second mounting sleeve of the present invention.

[0022] Explanation of icon numbers: 1. Steam main; 2. Inlet pipe; 3. Recovery assembly; 31. Drain valve; 32. Filter pipe; 33. Y-type filter; 34. Input pipe; 35. Float-type steam trap; 36. Output pipe; 37. Check valve; 38. Inclined pipe; 39. Pressure reducing valve; 310. Condensate tank; 4. Adjustment assembly; 41. Fixing ring; 42. Isolation cover; 43. Sealing seat; 44. Synchronous slide bar; 45. Buoyancy ball; 46. Height block; 47. Straight 48. Angle bracket; 49. First mounting sleeve; 410. First inductive switch; 411. First abutment screw; 412. Side groove; 413. Measuring ruler; 414. Second mounting sleeve; 415. Second inductive switch; 416. Second abutment screw; 417. Third inductive switch; 418. Sealing ring placement groove; 5. First pressure gauge; 6. Second pressure gauge; 7. Support side bracket; 8. Transfer pipe; 9. Discharge pipe; 10. Spring-loaded safety valve; 11. Breathing valve.

[0023] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] 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.

[0025] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.

[0026] Please see Figure 1 - Figure 7 This invention proposes a condensate recovery system for a steam conveying pipe, comprising a steam main pipe 1 and an inlet pipe 2. The inlet pipe 2 is fixedly connected to the steam main pipe 1, and a recovery assembly 3 is installed on the inlet pipe 2. The recovery assembly 3 is equipped with an regulating assembly 4. The recovery assembly 3 includes a drain valve 31, which is fixedly connected to the inlet pipe 2. A filter pipe 32 is fixedly installed at the end of the drain valve 31 away from the inlet pipe 2, and a Y-type filter 33 is fixedly installed at the end of the filter pipe 32 away from the drain valve 31. The inlet pipe... The inlet pipe 34 is fixedly connected to the Y-type filter 33. A float-type steam trap 35 is fixedly installed at the end of the inlet pipe 34 away from the Y-type filter 33. An outlet pipe 36 is fixedly installed at the end of the float-type steam trap 35 away from the inlet pipe 34. A check valve 37 is fixedly connected to the outlet pipe 36. An inclined pipe 38 is fixedly connected at the end of the check valve 37 away from the outlet pipe 36. A pressure reducing valve 39 is fixedly connected to the inclined pipe 38. A condensate tank 310 is fixedly connected at the end of the pressure reducing valve 39 away from the inclined pipe 38.

[0027] In an embodiment of the present invention, a first pressure gauge 5 is fixedly connected to the wall of the input pipe 34 via a threaded joint, and a second pressure gauge 6 is fixedly connected to the wall of the output pipe 36 via a threaded joint. Through the cooperation of the first pressure gauge 5 and the second pressure gauge 6, the pipe pressure before and after the float-type steam trap 35 can be monitored in real time, which facilitates the operator to check whether the steam trap is blocked or malfunctioning. A support frame 7 is fixedly connected to the outer wall of the condensate tank 310, and the bottom of the pressure reducing valve 39 is fixedly connected to the top of the support frame 7. The support frame 7 can provide stable support for the pressure reducing valve 39.

[0028] Furthermore, a transfer pipe 8 is fixedly connected to the outer wall of the condensate tank 310. A solenoid valve is installed on the transfer pipe 8. The diameter of the transfer pipe 8 is the same as that of the inlet pipe 2. The solenoid valve is normally closed and can automatically open and close in response to the induction switch signal to transport the recovered condensate to the subsequent utilization stage. A discharge pipe 9 is fixedly connected to the bottom of the condensate tank 310. The discharge pipe 9 serves as an emergency drainage channel. When the system malfunctions or when it is necessary to clean the liquid accumulated in the tank, the switch can be manually opened to drain the liquid. A switch is installed on the discharge pipe 9. A spring-loaded safety valve 10 is fixedly connected to the top of the condensate tank 310. A breather valve 11 is also fixedly connected to the top of the condensate tank 310. The spring-loaded safety valve 10 can automatically release pressure when the pressure inside the tank exceeds the set value. The breather valve 11 can balance the air pressure inside the tank with the external atmospheric pressure. The two work together to ensure the safe operation of the condensate tank 310 and prevent damage to the tank due to abnormal pressure.

[0029] Furthermore, the adjusting component 4 includes a fixing ring 41, the bottom of which is fixedly connected to the top of the condensate tank 310. The outer wall of the fixing ring 41 is threadedly connected to an isolation cover 42, which is made of transparent material to prevent external dust and debris from entering the adjusting component 4 and to facilitate observation of the internal components' operating status. A sealing seat 43 is provided below the isolation cover 42, the bottom of which is fixedly connected to the top of the condensate tank 310. A synchronous slide rod 44 is slidably connected to the inner wall of the sealing seat 43, and the synchronous slide rod 44 passes through the top of the condensate tank 310. A sealing ring placement groove 417 is provided on the sealing seat 43, and a sealing ring is placed in the sealing ring placement groove 417. By installing a high-temperature resistant sealing ring in the sealing ring placement groove 417 of the sealing seat 43, the sealing performance can be enhanced, preventing steam or condensate from leaking from the gap between the synchronous slide rod 44 and the sealing seat 43. The synchronous slide rod 44 is made of stainless steel with a smooth, burr-free surface to ensure smooth sliding.

[0030] Furthermore, a buoyancy ball 45 is fixedly connected to the bottom of the synchronous slide rod 44, and a height block 46 is fixedly connected to the top of the synchronous slide rod 44. The top right-angle bracket 47 of the condensate tank 310 is also fixedly connected. The density of the buoyancy ball 45 is less than that of the condensate, so it can move synchronously with the rise and fall of the liquid level. In turn, the height block 46 is moved up and down through the synchronous slide rod 44. The right-angle bracket 47 provides mounting support for the inductive switch. A first mounting sleeve 48 is slidably connected to the outer wall of the right-angle bracket 47. A first inductive switch 49 is fixedly installed on the outer wall of the first mounting sleeve 48. A first abutting screw 410 is threadedly connected to the inner wall of the first mounting sleeve 48. The first inductive switch 49 is a liquid level upper limit sensing component. It can slide along the right-angle bracket 47 through the first mounting sleeve 48. With the help of the measuring ruler 412 in the side groove 411, the installation height can be adjusted intuitively. After adjustment, the first abutting screw 410 can be tightened to fix it.

[0031] Furthermore, a side groove 411 is provided on the right-angle bracket 47, and a measuring scale 412 is welded to the inner wall of the side groove 411. A third sensor switch 416 is fixedly connected to the outer wall of the right-angle bracket 47. The scale of the measuring scale 412 is clear, which can help the operator to accurately adjust the position of the first sensor switch 49 and the second sensor switch 414. The third sensor switch 416 is a limit liquid level warning component, which is installed higher than the first sensor switch 49. When the liquid level rises abnormally to the limit position, it can issue a warning signal in time. A second mounting sleeve 413 is slidably connected and located below the first mounting sleeve 48. A second inductive switch 414 is fixedly installed on the outer wall of the second mounting sleeve 413, and a second abutment screw 415 is threadedly connected to the inner wall of the second mounting sleeve 413. The second inductive switch 414 is a liquid level lower limit sensing component. Its installation height is adjusted by the second mounting sleeve 413 and the reference measuring ruler 412. It can be fixed by tightening the second abutment screw 415. It works with the first inductive switch 49 to realize the automatic discharge and stop of condensate.

[0032] The present invention proposes a condensate recovery method for a steam transmission pipeline condensate recovery system, comprising the following steps: S1. System Preparation: Check whether the connection between the steam main pipe 1 and the access pipe 2 is sealed and leak-free. Confirm that the components of the recovery assembly 3, such as the drain valve 31, filter pipe 32, and Y-type filter 33, as well as the induction switches and buoyancy ball 45 of the adjustment assembly 4, are installed in place and undamaged. Loosen the first abutment screw 410 and the second abutment screw 415. Along the side groove 411 of the right angle bracket 47, and referring to the scale of the measuring ruler 412, adjust the positions of the first induction switch 49 (upper limit of liquid level) and the second induction switch 414 (lower limit of liquid level) according to the volume requirements of the condensate tank 310. After adjustment, tighten the screws to fix them. Open the spring-loaded safety valve 10 and the breather valve 11 to ensure that they are in normal working condition. Close the switch on the discharge pipe 9 and keep the drain valve 31 in the normally open state to replace the traditional intermittent switch mode. Complete the preparation before system startup.

[0033] S2. Condensate Recovery: Condensate accumulated in the steam main 1 flows into the recovery assembly 3 via the inlet pipe 2, and then sequentially passes through the drain valve 31 and the filter pipe 32 into the Y-type filter 33. The filter element of the Y-type filter 33 can filter out rust, impurities, and other particulate matter in the pipe, preventing blockage of the valve core of the float-type steam trap 35. The filtered condensate enters the float-type steam trap 35 through the inlet pipe 34. The float-type steam trap 35 is adapted to a steam pressure of 13 kg, with an operating temperature not exceeding 200℃. It can automatically identify the medium and only allow condensate to pass through. When the condensate is drained and high-temperature steam arrives, the condensate is discharged. The float rises and closes the valve core, preventing steam leakage. The condensate flows through the output pipe 36 and the check valve 37 (to prevent liquid in the condensate tank 310 from flowing back into the steam main 1) into the inclined pipe 38. The slope of the inclined pipe 38 is set at 3‰ to ensure smooth gravity flow of the condensate. After the pressure is regulated by the pressure reducing valve 39, the condensate is stably discharged into the condensate tank 310. The pressure reducing valve 39 adjusts the condensate pressure to the pressure inside the condensate tank 310 plus 0.1MPa to ensure that the condensate flows smoothly into the tank. During the process, the pipeline pressure is monitored in real time by the first pressure gauge 5 and the second pressure gauge 6 to facilitate timely detection of abnormalities.

[0034] S3. Liquid Level Control: Condensate continuously flows into condensate tank 310, and the liquid level in the tank gradually rises, pushing the buoyancy ball 45 to float upwards. Simultaneously, the synchronous slide rod 44 slides along the inner wall of the sealing seat 43, and the height block 46 rises synchronously with the synchronous slide rod 44. When the height block 46 moves to the position of the first inductive switch 49, the first inductive switch 49 sends a signal to control the solenoid valve on the transfer pipe 8 to open, and the condensate is discharged through the transfer pipe 8 and transported to the subsequent utilization stage. During the discharge process, the liquid level in the tank gradually drops, and the buoyancy ball 45 drives the height block 46 to move downwards synchronously. When the height block 46 passes the second inductive switch 414, the second inductive switch 414 sends a signal to close the solenoid valve on the transfer pipe 8 and stop the discharge. If the liquid level rises abnormally to the limit level, the third inductive switch 416 detects the signal and issues a warning. The operator can manually open the switch on the discharge pipe 9 for emergency drainage to prevent condensate from overflowing.

[0035] S4. System Maintenance: During routine operation and maintenance, monitor the pressure difference using the first pressure gauge 5 and the second pressure gauge 6. If the difference is too large, it indicates that the filter element of the Y-type filter 33 is clogged. The drain valve 31 needs to be closed, and the Y-type filter 33 needs to be disassembled and the filter element cleaned. Regularly check the insulation layer (50mm thick rock wool) of the float-type steam trap 35. If there is any damage, repair it in time to reduce heat loss. Check the anti-corrosion coating (epoxy coal tar coating) on ​​the outer surface of the recovery pipeline. If it is found to be peeling off, recoat it in time to extend the service life of the pipeline. When the system is shut down or under maintenance, close the drain valve 31, open the switch on the discharge pipeline 9, and empty the remaining condensate in the condensate tank 310. Check the sealing performance and opening and closing flexibility of the check valve 37 and the pressure reducing valve 39. Check whether the sealing ring of the regulating component 4 is aging. Replace the damaged parts in time to complete the maintenance work.

[0036] All electrical components appearing in this application are electrically connected to the controller and 220V AC mains power. The controller is a conventional and known device that can control the first inductive switch 49, the second inductive switch 414, the third inductive switch 416, and the solenoid valve. The signal interaction of each component adopts the PLC control protocol commonly used in industrial equipment, which is common knowledge to those skilled in the art and can be implemented without further detailed description. The control logic and signal interaction method are existing technologies and will not be described in detail. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all connected using conventional methods such as riveting and welding, which are mature technologies in the prior art. The standard parts all adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art.

[0037] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The supporting structures of the hydraulic drive structure appearing in this application document, such as hydraulic tanks and hydraulic pumps, are existing equipment and will not be described in detail here.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A condensate recovery system for steam delivery pipes, comprising a steam main (1), an access conduit (2), characterized in that: The steam main pipe (1) is fixedly connected with an access pipeline (2), the access pipeline (2) is provided with a recovery assembly (3), the recovery assembly (3) is provided with an adjusting assembly (4), the recovery assembly (3) comprises: A guide valve (31) is fixedly connected with the access pipeline (2), one end of the guide valve (31) away from the access pipeline (2) is fixedly installed with a filter pipeline (32), one end of the filter pipeline (32) away from the guide valve (31) is fixedly installed with a Y-type filter (33); An input pipeline (34) is fixedly connected with the Y-type filter (33), one end of the input pipeline (34) away from the Y-type filter (33) is fixedly installed with a floating ball trap (35), one end of the floating ball trap (35) away from the input pipeline (34) is fixedly installed with an output pipeline (36); A check valve (37) is fixedly connected with the output pipeline (36), one end of the check valve (37) away from the output pipeline (36) is fixedly connected with an inclined pipeline (38), the inclined pipeline (38) is fixedly connected with a pressure reducing valve (39), one end of the pressure reducing valve (39) away from the inclined pipeline (38) is fixedly connected with a condensate tank (310).

2. A condensate recovery system for a steam delivery tube according to claim 1, wherein: The pipe wall of the input pipeline (34) is fixedly connected with a first pressure gauge (5) through a threaded joint, the pipe wall of the output pipeline (36) is fixedly connected with a second pressure gauge (6) through a threaded joint, the outer wall of the condensate tank (310) is fixedly connected with a support edge frame (7), and the bottom of the pressure reducing valve (39) is fixedly connected to the top of the support edge frame (7).

3. A condensate recovery system for a steam delivery tube according to claim 1, wherein: The outer wall of the condensate tank (310) is fixedly connected with a transfer pipeline (8), the transfer pipeline (8) is provided with a solenoid valve, the bottom of the condensate tank (310) is fixedly connected with a discharge pipeline (9), the discharge pipeline (9) is provided with a switch, the top of the condensate tank (310) is fixedly connected with a spring safety valve (10), and the top of the condensate tank (310) is fixedly connected with a breather valve (11).

4. The condensate recovery system for a steam delivery tube according to claim 1, characterized by: The adjusting assembly (4) comprises a fixed ring sleeve (41), the bottom of the fixed ring sleeve (41) is fixedly connected to the top of the condensate tank (310), and the outer wall of the fixed ring sleeve (41) is threadedly connected with an isolation cover (42).

5. A condensate recovery system for a steam delivery tube according to claim 4, wherein: A sealing seat (43) is arranged below the isolation cover (42), the bottom of the sealing seat (43) is fixedly connected to the top of the condensate tank (310), the inner wall of the sealing seat (43) is slidably connected with a synchronous sliding rod (44), and the synchronous sliding rod (44) penetrates through the top of the condensate tank (310).

6. A condensate recovery system for a steam delivery tube according to claim 5, wherein: The bottom of the synchronous sliding rod (44) is fixedly connected with a buoyancy ball (45), the top of the synchronous sliding rod (44) is fixedly connected with a height block (46), and the top of the condensate tank (310) is fixedly connected with a right-angle frame (47).

7. A condensate recovery system for a steam delivery tube according to claim 6, wherein: The outer wall of the right-angle bracket (47) is slidably connected to a first mounting sleeve (48), the outer wall of the first mounting sleeve (48) is fixedly mounted with a first inductive switch (49), and the inner wall of the first mounting sleeve (48) is threadedly connected with a first abutting screw (410).

8. A condensate recovery system for a steam delivery tube according to claim 7, wherein: The right-angle frame (47) has a side groove (411), and a measuring ruler (412) is welded to the inner wall of the side groove (411). A third inductive switch (416) is fixedly connected to the outer wall of the right-angle frame (47). A sealing ring placement groove (417) is provided on the sealing seat (43), and a sealing ring is placed on the sealing ring placement groove (417).

9. A condensate recovery system for a steam delivery tube according to claim 8, wherein: The outer wall of the right-angle bracket (47) is slidably connected to a second mounting sleeve (413), the second mounting sleeve (413) is located below the first mounting sleeve (48), the outer wall of the second mounting sleeve (413) is fixedly installed with a second inductive switch (414), and the inner wall of the second mounting sleeve (413) is threadedly connected with a second abutment screw (415).

10. A recovery method of a condensate recovery system for a steam delivery tube as defined in any one of claims 1 to 9, characterized by, Includes the following steps: S1. System preparation: Check the connection and sealing of the steam main (1) and the access pipe (2), and confirm that the recovery component (3), the regulating component (4) and all valves and instruments are installed in place; adjust the position of the induction switch in the regulating component (4) as required, open the spring safety valve (10) and the breather valve (11), close the switch on the discharge pipe (9), keep the drain valve (31) in the normally open state, and complete the preparation before system startup; S2, Condensate Recovery: The condensate in the steam main (1) enters the recovery component (3) through the inlet pipe (2), and after being filtered and hydrophobically separated, it flows by gravity through the pipeline and is steadily discharged into the condensate tank (310) after pressure reduction and regulation. During the process, the pipeline pressure is monitored by the pressure gauge, and the hydrophobic component automatically separates the condensate from the steam to prevent steam leakage. S3, Liquid level control: When the liquid level in the condensate tank (310) rises or falls, the buoyancy structure of the adjusting component (4) drives the sensing component to move, automatically controlling the opening and closing of the solenoid valve on the transfer pipe (8) to realize the automatic discharge and stop of the condensate; if the liquid level reaches the limit position, an early warning is issued through the corresponding sensing switch, and the discharge pipe (9) can be manually operated for emergency discharge. S4. System maintenance: Daily monitoring of the working status of each component, regular cleaning of impurities in the filter assembly, and inspection of the sealing and corrosion protection of pipelines and valves; when the system is shut down, close the drain valve (31), drain the remaining condensate in the condensate tank (310), and complete the component inspection and maintenance.

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