Steam pipeline waste heat recovery device

Abstract

The utility model provides a waste heat recovery device for a steam pipeline, belongs to the technical field of waste heat recovery, and aims to solve the problems that high-temperature and high-pressure steam is transmitted for a long time in a conveying pipeline with too many bends, the consumption is high, the efficiency of converting the high-temperature steam into electric energy is not high, a pipeline system is complicated, and the conveying process needs to be detected. The heat utilization mechanism is mounted in the steam conveying pipeline; one end of the conveying mechanism is fixedly communicated with the heat utilization mechanism; the liquid control mechanism is communicated with the conveying mechanism; the steam conveying pipeline is arranged in the steam boiler and is resistant to high temperature and corrosion, the heat preservation performance is high, and a steam pipe network is monitored in real time; the heat utilization mechanism is inserted into the steam conveying pipeline to improve the steam utilization rate; high-temperature and low-temperature liquid flows in or out in a one-way mode, and auxiliary absorption of waste heat is rapidly completed.

Description

Technical Field

[0001] This utility model belongs to the field of waste heat recovery technology, and more specifically, it relates to a waste heat recovery device for steam pipelines. Background Technology

[0002] A submerged arc furnace, also known as an electric arc furnace or resistance furnace, is mainly used for reducing and smelting ores, carbonaceous reducing agents, and solvents. It primarily produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, and ferrosilicon-manganese alloys, which are important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide. During operation, the submerged arc furnace generates a large amount of steam, which can be used for waste heat power generation, saving energy and reducing consumption. However, the steam delivery pipes at the furnace head have certain defects. High-temperature, high-pressure steam is transported for extended periods through numerous bends in the pipes, resulting in high consumption. The efficiency of converting high-temperature steam into electrical energy is low, and the pipeline system is complex, requiring monitoring of the delivery process. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a steam pipeline waste heat recovery device, which solves the problems mentioned in the background art, such as the long-term transmission of high-temperature and high-pressure steam in pipelines with too many bends, resulting in high consumption, low efficiency in converting high-temperature steam into electrical energy, complex pipeline systems, and the need to monitor the transmission process.

[0004] This utility model discloses a waste heat recovery device for steam pipelines, which is achieved through the following specific technical means:

[0005] A steam pipeline waste heat recovery device includes: a steam conveying pipeline, a heat utilization mechanism, a conveying mechanism, and a liquid control mechanism; the steam conveying pipeline is connected to the heat utilization mechanism; the heat utilization mechanism is installed inside the steam conveying pipeline; one end of the conveying mechanism is fixedly connected to the heat utilization mechanism; the liquid control mechanism is connected to the conveying mechanism; the liquid control mechanism includes: a liquid receiving cylinder and a discharge pipe; the liquid receiving cylinder has a cylindrical structure; one end of the discharge pipe is connected to the liquid receiving cylinder through a one-way valve, and the liquid in the liquid receiving cylinder flows unidirectionally into the discharge pipe.

[0006] In at least some embodiments, the heat utilization mechanism includes: a heat-absorbing pipe, a support frame, and a self-adjusting sealing assembly; the heat-absorbing pipe is inserted inside a steam conveying pipe; the bottom of the support frame is fixedly connected to one end of the heat-absorbing pipe; and the self-adjusting sealing assembly is connected to the support frame.

[0007] In at least some embodiments, the self-adjusting sealing assembly further includes: a support cylinder, a sliding rod, spring A, an inner ring, and a stopper plate A; the support cylinder is a hollow cylindrical structure, and the surface of the support cylinder is fixedly connected to the support frame; the top of the sliding rod is slidably inserted into the inside of the support cylinder; the number of springs A is set to two sets, and springs A are installed inside the support cylinder and in contact with the sliding rod; the inner ring is fixedly installed inside the heat absorption tube; the stopper plate A is slidably inserted into the inside of the inner ring, and the stopper plate A can play the role of assisting in sealing the heat absorption tube.

[0008] In at least some embodiments, the conveying mechanism includes: a conveying pipe, a fixed connecting plate, a connecting rod, a spring B, a sliding baffle, and a water inlet pipe; one side of the conveying pipe is fixedly connected to the heat absorption pipe; the fixed connecting plate is fixedly connected to the conveying pipe; the connecting rod is slidably inserted into the groove of the fixed connecting plate; the spring B is installed on the surface of the connecting rod, and the spring B can elastically support the sliding baffle; the sliding baffle is slidably inserted into the groove of the fixed connecting plate, and the sliding baffle is fixedly connected to the connecting rod, and the sliding baffle can block the conveying pipe; one end of the water inlet pipe is connected to a water pump, and the other end of the water inlet pipe is connected to the conveying pipe through a one-way valve, and the liquid inside the water inlet pipe flows unidirectionally into the conveying pipe.

[0009] In at least some embodiments, the liquid control mechanism further includes: a support rod, a threaded rotating rod, a drive plate, a motor housing, a lifting frame, and a stopper plate B; the support rod is a cuboid structure with a T-shaped groove inside, and the support rod is fixedly installed on the surface of the liquid receiving cylinder; the threaded rotating rod is rotatably inserted into the groove of the support rod; the drive plate is slidably inserted into the groove of the support rod and threadedly connected to the threaded rotating rod, and the rotation of the threaded rotating rod can control the lifting and sliding of the drive plate; a motor inside the motor housing is connected to the threaded rotating rod; one side of the lifting frame is fixedly connected to the drive plate, and the other side of the lifting frame is slidably inserted into the liquid receiving cylinder; the stopper plate B is fixedly connected to the lifting frame, and the sliding of the stopper plate B can control the flow of liquid inside the liquid receiving cylinder.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention features an internal steam delivery pipeline designed to be high-temperature resistant, corrosion-resistant, and highly insulating. The pipeline is monitored and analyzed in real time, enabling real-time monitoring and efficient scheduling of the steam network. The device also includes a heat utilization mechanism inserted into the steam delivery pipeline to quickly recover and utilize waste heat, improving steam utilization efficiency. Furthermore, the device incorporates a delivery mechanism and a liquid control mechanism to control liquid flow, allowing high and low temperature liquids to flow in or out in one direction without mixing, thus facilitating rapid auxiliary absorption of waste heat. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main body axial side view of this utility model.

[0013] Figure 2 This is a side view of the heat utilization mechanism of this utility model.

[0014] Figure 3 This is a cross-sectional structural diagram of the self-adjusting sealing component of this utility model.

[0015] Figure 4 This is a cross-sectional structural diagram of the conveying mechanism of this utility model.

[0016] Figure 5 This is a cross-sectional structural diagram of the liquid control mechanism of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0018] 1. Steam conveying pipeline; 2. Heat utilization mechanism; 201. Heat absorption pipe; 202. Support frame; 203. Self-adjusting sealing assembly; 2031. Support cylinder; 2032. Sliding rod; 2033. Spring A; 2034. Inner ring; 2035. Plug plate A; 3. Conveying mechanism; 301. Conveying pipe; 302. Fixed connecting plate; 303. Connecting rod; 304. Spring B; 305. Sliding baffle; 306. Water inlet pipe; 4. Liquid control mechanism; 401. Liquid receiving cylinder; 402. Discharge pipe; 403. Support rod; 404. Threaded rotating rod; 405. Driving plate; 406. Motor box; 407. Lifting frame; 408. Plug plate B. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0020] Example 1:

[0021] As attached Figure 1 To be continued Figure 5 As shown:

[0022] This utility model provides a steam pipeline waste heat recovery device, including: a steam conveying pipeline 1, a heat utilization mechanism 2, a conveying mechanism 3, and a liquid control mechanism 4; the steam conveying pipeline 1 is connected to the heat utilization mechanism 2; the heat utilization mechanism 2 is installed inside the steam conveying pipeline 1; one end of the conveying mechanism 3 is fixedly connected to the heat utilization mechanism 2; the liquid control mechanism 4 is connected to the conveying mechanism 3; the liquid control mechanism 4 includes: a liquid receiving cylinder 401 and a discharge pipe 402; the liquid receiving cylinder 401 has a cylindrical structure; one end of the discharge pipe 402 is connected to the liquid receiving cylinder 401 through a one-way valve, and the liquid in the liquid receiving cylinder 401 flows unidirectionally into the discharge pipe 402.

[0023] like Figure 2As shown, the heat utilization mechanism 2 includes: a heat absorption pipe 201, a support frame 202, and a self-adjusting sealing assembly 203; the heat absorption pipe 201 is inserted inside the steam conveying pipe 1; the bottom of the support frame 202 is fixedly connected to one end of the heat absorption pipe 201; the self-adjusting sealing assembly 203 is connected to the support frame 202.

[0024] like Figure 3 As shown, the self-adjusting sealing assembly 203 further includes: a support cylinder 2031, a sliding rod 2032, a spring A2033, an inner ring 2034, and a stopper plate A2035; the support cylinder 2031 is a hollow cylindrical structure, and the surface of the support cylinder 2031 is fixedly connected to the support frame 202; the top of the sliding rod 2032 is slidably inserted into the interior of the support cylinder 2031; the number of springs A2033 is set to two sets, and the springs A2033 are installed inside the support cylinder 2031 and in contact with the sliding rod 2032; the inner ring 2034 is fixedly installed inside the heat absorption tube 201; the stopper plate A2035 is slidably inserted into the interior of the inner ring 2034, and the stopper plate A2035 can play the role of assisting in sealing the heat absorption tube 201.

[0025] like Figure 4 As shown, the conveying mechanism 3 includes: a conveying pipe 301, a fixed connecting plate 302, a connecting rod 303, a spring B304, a sliding baffle 305, and a water inlet pipe 306; one side of the conveying pipe 301 is fixedly connected to the heat absorption pipe 201; the fixed connecting plate 302 is fixedly connected to the conveying pipe 301; the connecting rod 303 is slidably inserted into the groove of the fixed connecting plate 302; the spring B304 is installed on the surface of the connecting rod 303, and the spring B304 can play the role of elastically supporting the sliding baffle 305; the sliding baffle 305 is slidably inserted into the groove of the fixed connecting plate 302, and the sliding baffle 305 is fixedly connected to the connecting rod 303, and the sliding baffle 305 can play the role of sealing the conveying pipe 301; one end of the water inlet pipe 306 is connected to the water pump, and the other end of the water inlet pipe 306 is connected to the conveying pipe 301 through a one-way valve, and the liquid inside the water inlet pipe 306 flows unidirectionally into the conveying pipe 301.

[0026] like Figure 5As shown, the liquid control mechanism 4 also includes: a support rod 403, a threaded rotating rod 404, a drive plate 405, a motor housing 406, a lifting frame 407, and a stopper plate B408; the support rod 403 is a cuboid structure with a T-shaped groove inside, and the support rod 403 is fixedly installed on the surface of the liquid receiving cylinder 401; the threaded rotating rod 404 is rotatably inserted into the groove of the support rod 403; the drive plate 405 is slidably inserted into the groove of the support rod 403 and threadedly connected to the threaded rotating rod 404, and the rotation of the threaded rotating rod 404 can control the lifting and sliding of the drive plate 405; the motor inside the motor housing 406 is connected to the threaded rotating rod 404; one side of the lifting frame 407 is fixedly connected to the drive plate 405, and the other side of the lifting frame 407 is slidably inserted into the liquid receiving cylinder 401; the stopper plate B408 is fixedly connected to the lifting frame 407, and the sliding of the stopper plate B408 can control the liquid flow inside the liquid receiving cylinder 401.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In this invention, the steam conveying pipeline 1 is designed as a high-temperature resistant, corrosion-resistant, and highly insulating steam pipeline to improve the insulation effect. A DCS control system for the waste heat power generation steam pipeline network with functions such as systematic monitoring and management, pressure regulation, and flow control is constructed to monitor and analyze pipeline operation data in real time, achieving real-time monitoring and efficient scheduling of the steam pipeline network. The steam conveying pipeline 1 transports waste heat, and the heat absorption pipe 201 is installed inside the steam conveying pipeline 1. The low-temperature water inside the heat absorption pipe 201 is rapidly heated by the heat inside the steam conveying pipeline 1. After heating, the motor in the motor housing 406 controls the threaded rod 404 to rotate and controls the sliding of the drive plate 405. This, in turn, pulls the sliding of the stopper plate B408 through the lifting frame 407. The sliding of the stopper plate B408 causes the plate 405 to rise simultaneously. Spring B304 rebounds and pushes sliding baffle 305 to lift, opening the delivery pipe 301. Plug plate B408 slides upward, drawing liquid from delivery pipe 301 and heat absorption pipe 201 into the receiving cylinder 401, completing the extraction of high-temperature liquid. After extraction, threaded rod 404 rotates in the opposite direction and controls plug plate B408 to slide down. Plug plate B408 squeezes liquid in the receiving cylinder 401, allowing it to pass through discharge pipe 402 in one direction, completing the delivery. This causes plate 405 to slide to the bottom and re-seal delivery pipe 301 with sliding baffle 305. Water pump in inlet pipe 306 starts and fills delivery pipe 301, allowing liquid to enter heat absorption pipe 201 for the next round of heating. As liquid flows in heat absorption pipe 201, plug plate A2035 and sliding rod 2032 adapt and slide, effectively sealing the pipe.

[0029] The following points should be noted in this article:

[0030] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0031] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0032] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A steam pipe waste heat recovery device, comprising: The steam conveying pipeline (1), heat utilization mechanism (2), conveying mechanism (3), and liquid control mechanism (4) are connected to each other. The heat utilization mechanism (2) is installed inside the steam conveying pipeline (1). One end of the conveying mechanism (3) is fixedly connected to the heat utilization mechanism (2). The liquid control mechanism (4) is connected to the conveying mechanism (3). The liquid control mechanism (4) includes a liquid receiving cylinder (401) and a discharge pipe (402). The liquid receiving cylinder (401) is a cylindrical structure. One end of the discharge pipe (402) is connected to the liquid receiving cylinder (401) through a one-way valve.

2. The device for recovering waste heat from steam pipes according to claim 1, characterized in that: The heat utilization mechanism (2) includes: a heat absorption pipe (201), a support frame (202), and a self-adjusting sealing assembly (203); the heat absorption pipe (201) is inserted inside the steam conveying pipe (1); the bottom of the support frame (202) is fixedly connected to one end of the heat absorption pipe (201); the self-adjusting sealing assembly (203) is connected to the support frame (202).

3. A steam pipe waste heat recovery device according to claim 2, characterized in that: The self-adjusting sealing assembly (203) further includes: a support cylinder (2031), a sliding rod (2032), a spring A (2033), an inner ring (2034), and a stopper plate A (2035); the surface of the support cylinder (2031) is fixedly connected to the support frame (202); the top of the sliding rod (2032) is slidably inserted into the inside of the support cylinder (2031); the number of springs A (2033) is set to two sets, and the springs A (2033) are installed inside the support cylinder (2031) and in contact with the sliding rod (2032); the inner ring (2034) is fixedly installed inside the heat absorption tube (201); the stopper plate A (2035) is slidably inserted into the inside of the inner ring (2034).

4. The device for recovering waste heat from steam pipes according to claim 2, characterized in that: The conveying mechanism (3) includes: a conveying pipe (301), a fixed connecting plate (302), a connecting rod (303), a spring B (304), a sliding baffle (305), and a water inlet pipe (306); one side of the conveying pipe (301) is fixedly connected to the heat absorption pipe (201); the fixed connecting plate (302) is fixedly connected to the conveying pipe (301); the connecting rod (303) is slidably inserted into the groove of the fixed connecting plate (302); the spring B (304) is installed on the surface of the connecting rod (303); the sliding baffle (305) is slidably inserted into the groove of the fixed connecting plate (302), and the sliding baffle (305) is fixedly connected to the connecting rod (303); one end of the water inlet pipe (306) is connected to the water pump, and the other end of the water inlet pipe (306) is connected to the conveying pipe (301) through a one-way valve.

5. The device for recovering waste heat from steam pipes according to claim 1, characterized in that: The liquid control mechanism (4) further includes: a support rod (403), a threaded rotating rod (404), a drive plate (405), a motor box (406), a lifting frame (407), and a stopper plate B (408); the support rod (403) is fixedly installed on the surface of the liquid receiving cylinder (401); the threaded rotating rod (404) is rotatably inserted into the groove of the support rod (403); the drive plate (405) is slidably inserted into the groove of the support rod (403) and threadedly connected to the threaded rotating rod (404); the motor inside the motor box (406) is connected to the threaded rotating rod (404); one side of the lifting frame (407) is fixedly connected to the drive plate (405), and the other side of the lifting frame (407) is slidably inserted into the liquid receiving cylinder (401); the stopper plate B (408) is fixedly connected to the lifting frame (407).

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