Steam temperature control and pressure regulating delivery device
By combining buffer and barrier structures, and using a motor-driven threaded screw to open and close the blades, the problem of steam pressure fluctuations is solved, achieving precise control of steam pressure and stable delivery, while reducing pipeline damage and heat exchange.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG TEN CONSTR GRP CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-05-29
AI Technical Summary
Existing steam conveying devices lack precise and stable pressure control mechanisms, which may lead to safety accidents or affect production processes when pressure fluctuates.
The system employs a buffer and barrier structure in conjunction with a control box. A motor-driven threaded screw drives a sliding block, enabling flexible opening and closing of the barrier structure blades. Combined with a limit slide and outer protective layer design, it allows for precise control of steam pressure.
It achieves efficient and stable control of steam pressure, reduces pipeline damage and temperature loss, and improves energy utilization efficiency.
Smart Images
Figure CN224301616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steam conveying technology, and in particular to a steam temperature control and pressure regulating conveying device. Background Technology
[0002] In modern society, steam, as a highly efficient energy carrier, is widely used in industrial production, district heating, food processing, and pharmaceutical manufacturing. In industrial production, steam provides heat energy for equipment such as reaction vessels and distillation towers; in district heating, it provides heating to residents through heat exchange; and in the food and pharmaceutical industries, it is a crucial sterilization and disinfection medium, and its pressure stability directly affects production processes, product quality, and safety.
[0003] With increasing societal demands for production efficiency and safety, the pressure control capability of steam conveying systems has become a core indicator. However, existing steam conveying devices have significant drawbacks: a lack of precise and stable pressure control mechanisms. When pressure fluctuations occur during steam conveying, traditional devices cannot achieve stable pressure control through efficient adjustment methods. This can lead to safety accidents such as pipeline leaks and equipment damage caused by excessively high steam pressure, while insufficient pressure can affect production processes (e.g., incomplete sterilization in pharmaceuticals or insufficient reaction temperatures in industrial applications), making it difficult to meet the stringent steam pressure requirements of modern production and daily life. Utility Model Content
[0004] To achieve precise and stable control of steam pressure, this utility model adopts the following technical solution:
[0005] A steam temperature and pressure regulating conveying device includes a conveying pipe, a flange connected to a valve inlet is provided on one side of the conveying pipe, and an outer protective layer is provided on the outside of the conveying pipe. It also includes:
[0006] The buffer structure has multiple sets, which are circumferentially and equidistantly distributed on the surface of the conveying pipe, and is used to connect the outer protective layer.
[0007] A barrier structure is installed inside the delivery pipe on the side near the flange to regulate steam pressure.
[0008] The control box is located on the surface of the delivery pipe near the barrier structure and is used to drive the barrier structure.
[0009] Preferably, multiple sets of limiting slide rods are fixedly installed on the surface of the conveying pipe, and the other end of each set of limiting slide rods is sleeved together with the outer protective layer.
[0010] Preferably, the buffer structure includes a lower contact plate, an upper contact plate, and an elastic plate. The lower contact plate is fixedly connected to the surface of the conveying pipe and is arc-shaped to fit the surface of the conveying pipe. Multiple sets of elastic plates are fixedly installed at the top of the lower contact plate and are symmetrical. The other ends of the multiple sets of elastic plates are fixedly installed together with the upper contact plate. The upper contact plate is fixedly connected to the inner side of the outer protective layer and is arc-shaped to fit the inner surface of the outer protective layer.
[0011] Preferably, a set of return springs is fixedly installed around the top edge of the lower contact plate, and the other ends of the multiple sets of return springs are fixedly installed together with the upper contact plate.
[0012] Preferably, the barrier structure includes a first blade, a second blade, and a fixing rod. The fixing rod is rotatably installed on one side inside the conveying pipe, and the top end of the fixing rod extends through the surface of the conveying pipe. The first blade is fixedly installed on one side of the fixing rod, and the second blade is sleeved on the side of the fixing rod away from the first blade. Multiple sets of through holes are formed on the surfaces of the first blade and the second blade.
[0013] Preferably, the barrier structure further includes a lower pin, a collar, and an upper pin. The collar is fixedly installed on the top of the second blade near the fixed rod, and the top of the collar extends through the top of the conveying pipe and is sleeved with the fixed rod. The top of the fixed rod is disc-shaped. The lower pin is fixedly installed on the disc-shaped side of the top of the fixed rod, and the upper pin is fixedly installed on the side of the collar away from the lower pin.
[0014] Preferably, the control box includes a motor, a lead screw, and a drive slider. The motor is fixedly installed on one side inside the control box, and the lead screw is fixedly installed on the output shaft of the motor. The drive slider is slidably installed on the side of the control box away from the motor, and the other end of the lead screw is rotatably mounted together with the middle of the drive slider.
[0015] Preferably, the drive slider has a slot in the middle of the side away from the motor that corresponds to the diameter of the fixing rod, and a set of slots is provided on both sides of the slot corresponding to the lower pin and the upper pin, and the lower pin and the upper pin are sleeved together with the slots.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. Steam pressure regulation: The motor in the control box drives the threaded screw to move the slider. The connection between the pin and the slot allows the first and second blades in the barrier structure to open and close flexibly. The multiple sets of through holes on the blade surface refine the flow regulation gradient, realizing efficient and stable regulation of steam pressure, which can adapt to the steam pressure requirements of different scenarios.
[0018] 2. Improved transport stability and energy efficiency: The multiple buffer structures on the surface of the transport pipe can absorb the impact energy generated by steam pressure fluctuations. Combined with the limiting guide of the limiting slide rod, it can prevent water hammer effect and reduce pipeline damage. At the same time, the double-layer structure design of the transport pipe and the outer protective layer reduces the heat exchange between steam and the outside world, reduces temperature loss, and improves energy utilization efficiency.
[0019] In summary, this utility model overcomes the shortcomings of the prior art by achieving steam pressure regulation through the cooperation of the control box and the barrier structure: the motor drives the threaded screw to drive the slider to move, and the connection between the pin and the slot drives the opening and closing of the first and second blades. The multiple sets of through holes on the blades refine the flow regulation gradient, making the pressure regulation efficient and stable, and adaptable to different scenario requirements. At the same time, the multiple sets of buffer structures and the limiting slider work together to absorb the impact energy generated by steam pressure fluctuations, prevent water hammer effect, reduce pipeline damage, and the double-layer structure of the delivery pipe and the outer protective layer reduces the heat exchange between steam and the outside world, reduces temperature loss, and improves energy utilization efficiency. It has high social use value and application prospects. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional front view structural schematic diagram of the present invention;
[0022] Figure 2 This is a cross-sectional structural diagram of the outer protective layer of this utility model;
[0023] Figure 3 This is a three-dimensional side view of the structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the buffer structure of this utility model;
[0025] Figure 5 This is a partial structural diagram of the barrier structure of this utility model;
[0026] Figure 6 This is a structural diagram showing the breakdown of the barrier structure of this utility model;
[0027] Figure 7 This is a schematic diagram of the control box of this utility model.
[0028] In the diagram: 1. Conveying pipe; 2. Outer protective layer; 3. Buffer structure; 4. Barrier structure; 5. Control box; 6. Limiting slide bar; 7. Lower contact plate; 8. Upper contact plate; 9. Elastic plate; 10. Return spring; 11. First blade; 12. Second blade; 13. Fixing rod; 14. Lower pin; 15. Collar; 16. Upper pin; 17. Motor; 18. Threaded screw; 19. Drive slider. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0030] Example 1:
[0031] Reference Figure 1-7 A steam temperature and pressure regulating conveying device includes a conveying pipe 1, a flange connected to a valve inlet on one side of the conveying pipe 1, and an outer protective layer 2 on the outside of the conveying pipe 1. It also includes:
[0032] The buffer structure 3 is provided in multiple sets and is distributed equidistantly in a circle on the surface of the conveying pipe 1, and is used to connect the outer protective layer 2.
[0033] The barrier structure 4 is installed inside the conveying pipe 1 on the side near the flange and is used to regulate the steam pressure.
[0034] The control box 5 is located on the surface of the delivery pipe 1 near the barrier structure 4 and is used to drive the barrier structure 4.
[0035] Specifically, refer to Figure 1-3 Multiple sets of limiting slide rods 6 are fixedly installed on the surface of the conveying pipe 1, and the other end of each set of limiting slide rods 6 is sleeved with the outer protective layer 2. The limiting slide rods 6 restrict and guide the relative movement of the conveying pipe 1 and the outer protective layer 2, preventing them from misaligning when the buffer structure 3 is working, ensuring the overall stability of the structure, and allowing the buffer structure 3 to function more effectively.
[0036] Specifically, refer to Figure 4The buffer structure 3 includes a lower contact plate 7, an upper contact plate 8, and an elastic plate 9. The lower contact plate 7 is fixedly connected to the surface of the conveying pipe 1, and the lower contact plate 7 is arc-shaped and fits against the surface of the conveying pipe 1. Multiple sets of elastic plates 9 are fixedly installed at the top of the lower contact plate 7, and the multiple sets of elastic plates 9 are symmetrical. The other end of each set of elastic plates 9 is fixedly installed together with the upper contact plate 8. The upper contact plate 8 is fixedly connected to the inner side of the outer protective layer 2, and the upper contact plate 8 is arc-shaped and fits against the inner surface of the outer protective layer 2. The arc-shaped lower contact plate 7 and upper contact plate 8 are tightly fitted to the conveying pipe 1 and the outer protective layer 2, respectively, which can evenly transmit the pressure fluctuations generated by steam conveying to the elastic plate 9. The symmetrically arranged elastic plates 9 deform under pressure, which can effectively absorb impact energy and prevent water hammer effect. At the same time, this structure also reduces the heat exchange between steam and the outside world and reduces temperature loss.
[0037] Specifically, refer to Figure 4 A set of return springs 10 are fixedly installed around the top of the lower contact plate 7, and the other ends of the multiple sets of return springs 10 are fixedly installed together with the upper contact plate 8. The return springs 10 cooperate with the elastic plate 9 to quickly restore the buffer structure 3 to its initial state after the pressure fluctuation disappears, thereby enhancing the reset capability of the buffer structure 3 and ensuring that it continuously and stably performs its buffering function.
[0038] Specifically, refer to Figure 5-6 The barrier structure 4 includes a first blade 11, a second blade 12, and a fixing rod 13. The fixing rod 13 is rotatably mounted on one side inside the conveying pipe 1, with its top end extending through the surface of the conveying pipe 1. The first blade 11 is fixedly mounted on one side of the fixing rod 13, and the second blade 12 is sleeved on the side of the fixing rod 13 opposite to the first blade 11. Multiple sets of through holes are formed on the surfaces of the first blade 11 and the second blade 12. The fixing rod 13 provides rotational support for the first blade 11 and the second blade 12, and the relative rotation of the two blades allows for adjustment of the opening and closing degree, thereby controlling the steam flow rate. The multiple sets of through holes on the blades enable fine adjustment of the flow rate under different opening and closing states, making the pressure regulation process more stable.
[0039] Specifically, refer to Figure 5-6The barrier structure 4 also includes a lower pin 14, a collar 15, and an upper pin 16. The collar 15 is fixedly installed on the top of the second blade 12 near the fixing rod 13, and the top of the collar 15 extends through the top of the conveying pipe 1 and is sleeved with the fixing rod 13. The top of the fixing rod 13 is disc-shaped. The lower pin 14 is fixedly installed on the disc-shaped side of the top of the fixing rod 13, and the upper pin 16 is fixedly installed on the side of the collar 15 opposite to the lower pin 14. The sleeved connection between the collar 15 and the fixing rod 13 ensures that the second blade 12 can move synchronously with the fixing rod 13. The lower pin 14 and the upper pin 16 connect the barrier structure 4 to the control box 5, providing a power transmission path for the opening and closing of the blade.
[0040] Specifically, refer to Figure 7 The control box 5 includes a motor 17, a lead screw 18, and a drive slider 19. The motor 17 is fixedly mounted on one side of the control box 5, and the lead screw 18 is fixedly mounted on the output shaft of the motor 17. The drive slider 19 is slidably mounted on the side of the control box 5 opposite to the motor 17, and the other end of the lead screw 18 is rotatably mounted to the middle of the drive slider 19. The motor 17 drives the lead screw 18 to rotate, which in turn drives the drive slider 19 to slide. This transmission method has high precision and can accurately control the displacement of the drive slider 19, providing precise power for the opening and closing of the blades of the blocking structure 4.
[0041] Specifically, refer to Figure 7 The drive slider 19 has a slot in its center on the side away from the motor 17, corresponding to the diameter of the fixed rod 13. A set of slots is provided on both sides of the slot, corresponding to the lower pin 14 and upper pin 16, respectively. The lower pin 14 and upper pin 16 are fitted into the slots. The slot and the fixed rod 13 work together to ensure the stability of the drive slider 19 during movement. The fitting of the lower pin 14 and upper pin 16 into the slots enables effective power transmission, allowing the sliding of the drive slider 19 to drive the blades to open and close.
[0042] Example 2:
[0043] Reference Figure 4 The difference between this embodiment and Embodiment 1 is that the number of elastic plates 9 in the buffer structure 3 is four. The four sets of elastic plates 9 are more evenly distributed than other quantities, which can more evenly bear and disperse the pressure, further improve the buffering effect, make the prevention of water hammer effect more significant, and at the same time better maintain the relative position stability between the delivery pipe 1 and the outer protective layer 2.
[0044] Specifically, refer to Figure 2There are seven sets of limiting slide rods 6, which are evenly distributed in a ring on the surface of the conveying pipe 1. The seven sets of evenly distributed limiting slide rods 6 can limit and guide the conveying pipe 1 and the outer protective layer 2, preventing them from tilting or shifting, making the structure more stable, and ensuring that the buffer structure 3 and the barrier structure 4 can work in a stable environment.
[0045] Specifically, refer to Figure 6 The first blade 11 and the second blade 12 each have nine sets of through holes. These nine sets of through holes provide a richer flow regulation gradient, enabling finer flow control during blade opening and closing, and allowing for more precise regulation of steam pressure to meet the steam flow requirements under different operating conditions.
[0046] Specifically, refer to Figure 4 There are four sets of return springs 10, corresponding to the four corners of the top of the lower contact plate 7. The four sets of return springs 10 can apply tension to the lower contact plate 7 and the upper contact plate 8 evenly from the four corners. When the buffer structure 3 resets, it can be pulled back to the initial state more smoothly, avoiding structural deformation caused by excessive local stress and extending the service life of the buffer structure 3.
[0047] Specifically, refer to Figure 7 Motor 17 is a servo motor. Servo motors have higher control precision and response speed, and can drive the screw 18 to rotate more accurately, thereby making the sliding of the drive slider 19 smoother, driving the blades of the blocking structure 4 to open and close more precisely, making the steam flow regulation more accurate, and meeting the strict control requirements of steam pressure.
[0048] Working Principle: In this invention, when steam is transported in the conveying pipe 1, if pressure fluctuations occur, the conveying pipe 1 will vibrate or undergo slight displacement. At this time, the buffer structure 3 on the surface of the conveying pipe 1 begins to function. The lower contact plate 7 moves with the conveying pipe 1, causing multiple sets of symmetrically arranged elastic plates 9 to deform. The deformation of the elastic plates 9 can absorb the impact energy generated by the pressure fluctuations. At the same time, the return springs 10 around the top of the lower contact plate 7 will also extend and retract, working together with the elastic plates 9 to buffer the pressure. During this process, multiple sets of limiting slide rods 6 on the surface of the conveying pipe 1 remain in a sleeved state with the outer protective layer 2, which restricts and guides the relative movement of the conveying pipe 1 and the outer protective layer 2, preventing misalignment and ensuring the stable operation of the buffer structure 3. This effectively prevents water hammer effects, and the structure between the inner conveying pipe 1 and the outer protective layer 2 reduces the heat exchange between the steam and the outside environment, reducing temperature loss. When the sensor in the valve body detects an increase in steam pressure, the motor 17 in the control box 5 starts. The motor 17 drives the threaded screw 18 to rotate, and the rotation of the threaded screw 18 causes the drive slider 19 to move within the control box. 5. Slides on the side away from motor 17; Since the slot on the side of the drive slider 19 away from motor 17 cooperates with the fixed rod 13, and the slots on both sides of the slot are engaged with the lower pin 14 and the upper pin 16, the sliding of the drive slider 19 will drive the fixed rod 13 and the collar 15 to rotate through the lower pin 14 and the upper pin 16; When the fixed rod 13 rotates, the first blade 11 on one side rotates accordingly, and at the same time the collar 15 drives the second blade 12 to rotate, causing the first blade 11 and the second blade 12 to open; After the blades open, the blocking area for steam increases, and the blades on Multiple sets of through holes participate in the regulation under different opening and closing states, reducing the high-pressure steam flow into the valve body and achieving the purpose of reducing steam pressure. When the sensor in the valve body detects a decrease in steam pressure, the motor 17 starts in reverse, driving the threaded screw 18 to rotate in reverse, driving the slider 19 to slide in reverse, and driving the fixed rod 13 and collar 15 to rotate in reverse through the lower pin 14 and upper pin 16, so that the first blade 11 and the second blade 12 close, reducing the obstruction of steam, increasing the steam flow, and increasing the steam pressure, thereby achieving the regulation of steam pressure.
[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A steam temperature and pressure regulating conveying device, comprising a conveying pipe (1), wherein a flange connected to a valve inlet is provided on one side of the conveying pipe (1), and an outer protective layer (2) is provided on the outside of the conveying pipe (1), characterized in that, Also includes: The buffer structure (3) is provided in multiple sets and is distributed equidistantly in a circle on the surface of the conveying pipe (1) for connecting the outer protective layer (2). A barrier structure (4) is installed inside the conveying pipe (1) on the side near the flange; The control box (5) is located on the side of the delivery pipe (1) near the barrier structure (4) and is used to drive the barrier structure (4).
2. The steam temperature control and pressure regulating conveying device according to claim 1, characterized in that: Multiple sets of limiting slide rods (6) are fixedly installed on the surface of the conveying pipe (1), and the other end of each set of limiting slide rods (6) is sleeved together with the outer protective layer (2).
3. The steam temperature control and pressure regulating conveying device according to claim 1, characterized in that: The buffer structure (3) includes a lower contact plate (7), an upper contact plate (8), and an elastic plate (9). The lower contact plate (7) is fixedly connected to the surface of the conveying pipe (1), and the lower contact plate (7) is arc-shaped and fits against the surface of the conveying pipe (1). Multiple sets of elastic plates (9) are fixedly installed at the top of the lower contact plate (7), and the multiple sets of elastic plates (9) are symmetrical. The other end of the multiple sets of elastic plates (9) is fixedly installed together with the upper contact plate (8). The upper contact plate (8) is fixedly connected to the inner side of the outer protective layer (2), and the upper contact plate (8) is arc-shaped and fits against the inner surface of the outer protective layer (2).
4. The steam temperature control and pressure regulating conveying device according to claim 3, characterized in that: A set of reset springs (10) are fixedly installed around the top of the lower contact plate (7), and the other ends of the multiple sets of reset springs (10) are fixedly installed together with the upper contact plate (8).
5. A steam temperature control and pressure regulating conveying device according to claim 1, characterized in that: The barrier structure (4) includes a first blade (11), a second blade (12) and a fixing rod (13). The fixing rod (13) is rotatably installed on one side inside the conveying pipe (1), and the top end of the fixing rod (13) extends through the surface of the conveying pipe (1). The first blade (11) is fixedly installed on one side of the fixing rod (13), and the second blade (12) is sleeved on the side of the fixing rod (13) away from the first blade (11). Multiple sets of through holes are opened on the surfaces of the first blade (11) and the second blade (12).
6. A steam temperature control and pressure regulating conveying device according to claim 5, characterized in that: The barrier structure (4) further includes a lower pin (14), a collar (15) and an upper pin (16). The collar (15) is fixedly installed on the top of the second blade (12) near the fixed rod (13), and the top of the collar (15) extends through the top of the conveying pipe (1) and is sleeved with the fixed rod (13). The top of the fixed rod (13) is disc-shaped. The lower pin (14) is fixedly installed on the disc-shaped side of the top of the fixed rod (13), and the upper pin (16) is fixedly installed on the side of the collar (15) away from the lower pin (14).
7. A steam temperature and pressure regulating conveying device according to claim 1, characterized in that: The control box (5) includes a motor (17), a threaded screw (18) and a drive slider (19). The motor (17) is fixedly installed on one side inside the control box (5). The threaded screw (18) is fixedly installed on the output shaft of the motor (17). The drive slider (19) is slidably installed on the side of the control box (5) away from the motor (17), and the other end of the threaded screw (18) is rotatably installed together with the middle of the drive slider (19).
8. A steam temperature and pressure regulating conveying device according to claim 7, characterized in that: The drive slider (19) has a slot in the middle of the side away from the motor (17) that corresponds to the diameter of the fixed rod (13). A set of slots is provided on both sides of the slot corresponding to the lower pin (14) and the upper pin (16). The lower pin (14) and the upper pin (16) are both sleeved together with the slots.