Steam water waste heat recovery device for steam trap

Abstract

The utility model is applicable to the technical field of waste heat recovery, and provides a steam water waste heat recovery device for a steam trap, which comprises a waste heat recovery chamber, a connecting rod is welded inside the waste heat recovery chamber, helical blades are welded between the connecting rod and the waste heat recovery chamber, and helical water pipes are arranged among the helical blades. One side of the top end of the waste heat recovery chamber is connected with a liquid outlet pipe; according to the utility model, the spiral blades and the spiral water pipe are arranged in the waste heat recovery chamber, through the unique spiral structure design, the flowing path of steam water in the spiral water pipe is obviously prolonged, and meanwhile, the flowing stroke of a heating medium among the spiral blades is increased, so that the contact time of the steam water and the heating medium is greatly prolonged; the waste heat recovery device and the waste heat recovery device are in staggered countercurrent contact, heat conduction and convection principles are fully utilized, and compared with a traditional linear pipeline type waste heat recovery device, the heat exchange efficiency is greatly improved, waste heat in steam water can be more fully recovered, and energy waste is effectively reduced.

Description

Technical Field

[0001] This utility model belongs to the field of waste heat recovery technology, and in particular relates to a steam water waste heat recovery device for a steam trap. Background Technology

[0002] In modern industrial production and centralized heating systems, steam traps are crucial equipment for ensuring the efficient operation of steam networks. Their core function is to promptly drain condensate from the steam system while preventing steam leakage. However, the steam water discharged from steam traps typically retains a high temperature and contains considerable waste heat. In traditional industrial processes, this high-temperature steam water is mostly discharged directly into the drainage system without effectively utilizing its waste heat, resulting in significant energy waste.

[0003] Traditional waste heat recovery devices mostly use straight pipes for steam diversion and heat exchange. The contact time between the steam and the heated medium is short, resulting in insufficient heat exchange and low waste heat recovery efficiency, which leads to energy waste. Therefore, a steam-water waste heat recovery device for steam traps is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a steam water waste heat recovery device for a steam trap, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steam-water waste heat recovery device for a steam trap includes a waste heat recovery chamber, a connecting rod welded inside the waste heat recovery chamber, spiral blades welded between the connecting rod and the waste heat recovery chamber, a spiral water pipe disposed between the spiral blades, a liquid outlet pipe connected to one side of the top of the waste heat recovery chamber, a first suction pump connected between the liquid outlet pipe and the waste heat recovery chamber, and a liquid injection pipe connected to one side of the bottom of the waste heat recovery chamber.

[0007] In a further technical solution, one end of the spiral water pipe is connected to an exhaust pipe, and the other end of the spiral water pipe is connected to an air inlet pipe. The exhaust pipe and the air inlet pipe respectively penetrate the bottom and top of the waste heat recovery chamber.

[0008] In a further technical solution, a second suction pump is connected between the exhaust pipe and the waste heat recovery chamber. An activated carbon box is connected to the other end of the exhaust pipe. The bottom of the activated carbon box has a mesh structure. A connecting cover is provided at one end of the air inlet pipe. The connecting cover is horn-shaped. A water injection pipe is connected to the top of the air inlet pipe. A sealing valve is provided inside the water injection pipe.

[0009] In a further technical solution, the spiral water pipe is located between the spiral blades, and the injection pipe and the outlet pipe are respectively connected through the two sides of the waste heat recovery chamber.

[0010] In a further technical solution, a support leg is connected to the bottom of the waste heat recovery chamber, and a threaded groove is provided at the bottom of the support leg.

[0011] In a further technical solution, a guide plate is provided at the top of the interior of the waste heat recovery chamber, and both ends of the spiral blades are connected to the guide plate, and the number of guide plates is two.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention features a unique spiral structure design in the waste heat recovery chamber, where spiral blades and spiral water pipes significantly extend the flow path of steam water within the spiral water pipes. Simultaneously, it increases the flow path of the heating medium between the spiral blades, greatly enhancing the contact time between the steam water and the heating medium. The two components engage in alternating counter-current contact, fully utilizing the principles of heat conduction and convection. Compared to traditional straight-line pipe waste heat recovery devices, this significantly improves heat exchange efficiency, enabling more thorough recovery of waste heat from the steam water and effectively reducing energy waste.

[0014] This invention features an activated carbon box connected to the exhaust pipe. Utilizing the adsorption properties of activated carbon, it effectively filters residual impurities, odors, and harmful gases from steam and water, preventing environmental pollution and improving the device's environmental performance. The combination of a water injection pipe and a sealing valve at the top of the air inlet pipe allows for the injection of cleaning fluid to flush the inside of the spiral water pipe when cleaning or maintenance is required. The sealing valve prevents liquid leakage, facilitating maintenance and extending the equipment's lifespan. The guide plate within the waste heat recovery chamber effectively guides the flow direction of the heating medium, ensuring more uniform contact with the spiral water pipe and further enhancing the uniformity and sufficiency of heat exchange, thus guaranteeing the stability of the waste heat recovery effect.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the main body of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the connecting cover of this utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional view of the main body of this utility model.

[0019] In the diagram: 1. Waste heat recovery chamber; 2. Connecting rod; 3. Spiral blade; 4. Spiral water pipe; 5. Liquid outlet pipe; 6. First suction pump; 7. Liquid injection pipe; 8. Exhaust pipe; 9. Second suction pump; 10. Activated carbon box; 11. Air inlet pipe; 12. Connecting cover; 13. Water injection pipe; 14. Sealing valve; 15. Support leg; 16. Guide plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] like Figures 1-3 As shown, this utility model embodiment provides a steam water waste heat recovery device for a steam trap, including a waste heat recovery chamber 1, a connecting rod 2 welded inside the waste heat recovery chamber 1, a spiral blade 3 welded between the connecting rod 2 and the waste heat recovery chamber 1, a spiral water pipe 4 provided between the spiral blades 3, a liquid outlet pipe 5 connected to one side of the top of the waste heat recovery chamber 1, a first suction pump 6 connected between the liquid outlet pipe 5 and the waste heat recovery chamber 1, and a liquid injection pipe 7 connected to one side of the bottom of the waste heat recovery chamber 1.

[0023] In this embodiment, the second suction pump 9 is started. Under its suction, the high-temperature steam water discharged from the steam trap enters the spiral water pipe 4 through the air inlet pipe 11, flows from top to bottom along the spiral water pipe 4, and is finally discharged from the exhaust pipe 8. At the same time, the first suction pump 6 is started. The heating medium enters the waste heat recovery chamber 1 from the liquid injection pipe 7. Under the suction of the first suction pump 6, it flows upward along the spiral blades 3, fully contacts the spiral water pipe 4, absorbs heat, and flows out from the liquid outlet pipe 5, entering the target device to complete the heating task.

[0024] like Figure 1 and Figure 3 As shown, specifically, one end of the spiral water pipe 4 is connected to the exhaust pipe 8, and the other end of the spiral water pipe 4 is connected to the air inlet pipe 11. The exhaust pipe 8 and the air inlet pipe 11 penetrate the bottom and top of the waste heat recovery chamber 1, respectively.

[0025] A second suction pump 9 is connected between the exhaust pipe 8 and the waste heat recovery chamber 1. The other end of the exhaust pipe 8 is connected to an activated carbon box 10. The bottom of the activated carbon box 10 has a mesh structure. One end of the air inlet pipe 11 is provided with a connecting cover 12, which is funnel-shaped. The top of the air inlet pipe 11 is connected to a water injection pipe 13, and a sealing valve 14 is provided inside the water injection pipe 13.

[0026] The spiral water pipe 4 is located between the spiral blades 3, and the liquid injection pipe 7 and the liquid outlet pipe 5 are respectively connected to both sides of the waste heat recovery chamber 1.

[0027] The bottom of the waste heat recovery chamber 1 is connected to a support leg 15, and the bottom of the support leg 15 is provided with a threaded groove.

[0028] The top of the interior of the waste heat recovery chamber 1 is provided with a guide plate 16, and both ends of the spiral blade 3 are connected to the guide plate 16. There are two guide plates 16.

[0029] In this embodiment, after the device has been running for a period of time, if it is necessary to clean and maintain the spiral water pipe 4, the sealing valve 14 of the water injection pipe 13 can be opened to inject cleaning fluid. The cleaning fluid flows inside the spiral water pipe 4, carrying away the internal dirt. The sealing valve 14 can prevent liquid leakage, which facilitates the maintenance and upkeep of the device. The guide plate 16 in the waste heat recovery chamber 1 can effectively guide the flow direction of the heating medium, so that it contacts the spiral water pipe 4 more evenly, further improving the uniformity and fullness of heat exchange. The activated carbon box 10 connected to the exhaust pipe 8 can effectively filter the impurities, odors and harmful gases remaining in the steam water by utilizing the adsorption characteristics of activated carbon, avoiding its emission from causing pollution to the environment.

[0030] The working principle of this utility model is as follows: First, the second suction pump 9 is activated. Under its suction, the high-temperature steam water discharged from the steam trap enters the spiral water pipe 4 through the air inlet pipe 11, flows from top to bottom along the spiral water pipe 4, and is finally discharged from the exhaust pipe 8. The activated carbon box 10 connected to the exhaust pipe 8 can effectively filter the residual impurities, odors and harmful gases in the steam water by utilizing the adsorption characteristics of activated carbon, thus avoiding pollution to the environment. Then, the first suction pump 6 is started at the same time. The heating medium enters the waste heat recovery chamber 1 from the liquid injection pipe 7. Under the suction of the first suction pump 6, it flows upward along the spiral blades 3, fully contacts the spiral water pipe 4, absorbs heat, and flows out from the liquid outlet pipe 5, entering the target device to complete the heating task. Finally, after the device has been running for a period of time, if it is necessary to clean and maintain the spiral water pipe 4, the sealing valve 14 of the water injection pipe 13 can be opened to inject cleaning liquid. The cleaning liquid flows in the spiral water pipe 4, carrying away the internal dirt, and the sealing valve 14 can prevent liquid leakage.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steam-water waste heat recovery device for a steam trap, comprising a waste heat recovery chamber (1), characterized in that: The waste heat recovery chamber (1) is internally welded with a connecting rod (2), and a spiral blade (3) is welded between the connecting rod (2) and the waste heat recovery chamber (1). A spiral water pipe (4) is provided between the spiral blades (3). A liquid outlet pipe (5) is connected to one side of the top of the waste heat recovery chamber (1). A first suction pump (6) is connected between the liquid outlet pipe (5) and the waste heat recovery chamber (1). A liquid injection pipe (7) is connected to one side of the bottom of the waste heat recovery chamber (1).

2. The steam-water waste heat recovery device for a steam trap according to claim 1, characterized in that: One end of the spiral water pipe (4) is connected to an exhaust pipe (8), and the other end of the spiral water pipe (4) is connected to an air inlet pipe (11). The exhaust pipe (8) and the air inlet pipe (11) are respectively connected to the bottom and top of the waste heat recovery chamber (1).

3. The steam-water waste heat recovery device for a steam trap according to claim 2, characterized in that: A second suction pump (9) is connected between the exhaust pipe (8) and the waste heat recovery chamber (1). The other end of the exhaust pipe (8) is connected to an activated carbon box (10). The bottom of the activated carbon box (10) is a mesh structure. One end of the air inlet pipe (11) is provided with a connecting cover (12). The connecting cover (12) is trumpet-shaped. The top of the air inlet pipe (11) is connected to a water injection pipe (13). The inside of the water injection pipe (13) is provided with a sealing valve (14).

4. The steam-water waste heat recovery device for a steam trap according to claim 1, characterized in that: The spiral water pipe (4) is located between the spiral blades (3), and the injection pipe (7) and the outlet pipe (5) are respectively connected to both sides of the waste heat recovery chamber (1).

5. The steam-water waste heat recovery device for a steam trap according to claim 1, characterized in that: The bottom of the waste heat recovery chamber (1) is connected to a support leg (15), and the bottom of the support leg (15) is provided with a threaded groove.

6. The steam-water waste heat recovery device for a steam trap according to claim 1, characterized in that: The waste heat recovery chamber (1) is provided with a guide plate (16) at the top of its interior. Both ends of the spiral blade (3) are connected to the guide plate (16), and there are two guide plates (16).

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