Steam recovery device for coal power production

Abstract

This utility model relates to the field of coal-fired power generation technology and discloses a steam recovery device for coal-fired power generation, including a recovery tank; a heating tank extending through the top surface of the recovery tank into the interior of the recovery tank; and an inlet pipe and an outlet pipe respectively fixed through the top surface of the heating tank. A valve is installed inside the inlet pipe. A recovery assembly is installed on the side of the heating tank. An alerting assembly is installed inside the heating tank, comprising a float and a first connecting rod located inside the heating tank. Through the alerting assembly, the float drives the first connecting rod to rise and fall, causing the positive and negative electrode plates to contact or disengage. When no water is added to the heating tank, the float drives the first connecting rod downwards, causing the positive and negative electrode plates to contact each other. A buzzer sounds an alarm to remind workers that the heating tank is low on water, preventing steam from being directly released due to lack of water in the heating tank, thus improving the alerting effect of the steam recovery device for coal-fired power generation.

Description

Technical Field

[0001] This utility model relates to the field of coal-fired power generation technology, specifically to a steam recovery device for coal-fired power generation. Background Technology

[0002] Coal-fired power generation refers to a method of generating electricity using coal as fuel. It is a type of thermal power generation, primarily producing steam by burning coal, which then drives a steam turbine to generate electricity. The production process in the coal-fired power industry generates large amounts of steam or flue gas. Most of this high-temperature steam or flue gas is released into the air, and the lack of effective utilization of this high-temperature steam contributes to increased ambient temperatures. More importantly, it wastes water resources.

[0003] According to a Chinese patent publication (CN217526428U), a steam recovery device for coal-fired power generation includes a recovery box. An air inlet pipe is fixedly connected to the upper side of the recovery box. The outlet end of the air inlet pipe is fixedly connected to a cooling spiral pipe located inside the recovery box. Multiple guide plates that cooperate with the output end of the cooling spiral pipe are fixedly connected to the inner wall of the recovery box. An arc-shaped sleeve is fixedly connected to the upper side of the recovery box. A fixing sleeve is fixedly connected to the upper end of the arc-shaped sleeve. A spring is fixedly connected to the upper surface of the inner side of the fixing sleeve. A slider that slides within the fixing sleeve is fixedly connected to the lower end of the spring. This invention has a simple structure, allows for the full recovery of steam and heat, enables steam reuse, reduces heat loss, and is simple to operate and convenient to use.

[0004] However, existing devices have the following problems: the recovery tank lacks a reminder device, and if water is forgotten to be added, the steam in the recovery tank can easily be discharged directly from the exhaust pipe, resulting in steam waste. Therefore, a steam recovery device for coal-fired power generation is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a steam recovery device for coal-fired power generation to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steam recovery device for coal-fired power generation, comprising a recovery box;

[0007] A heating tank that extends from the top of the recycling bin into the interior of the bin;

[0008] And an inlet pipe and an outlet pipe that are fixed through the top surface of the heating tank respectively, with a valve inside the inlet pipe, and a recycling component on the side of the heating tank;

[0009] The heating tank is equipped with a reminder component.

[0010] Preferably, the reminder component includes a float and a first connecting rod located inside the heating tank. The bottom end of the first connecting rod is fixedly connected to the top end of the float, and the top end of the first connecting rod slides through the top surface inside the heating tank and extends to the top of the heating tank. A positive electrode plate is fixedly connected to the right side of the first connecting rod. A second connecting rod is provided on the right side of the first connecting rod, and a negative electrode plate is fixedly connected to the left side of the second connecting rod. The negative electrode plate is located to the lower right of the positive electrode plate. The bottom end of the second connecting rod is fixedly connected to the top surface of the heating tank. A power supply and a buzzer are provided on the rear side of the first connecting rod. The bottom surfaces of the power supply and the buzzer are both fixedly installed on the top surface of the heating tank.

[0011] Preferably, the recycling assembly includes a threaded tube surrounding the side of the heating tank. The rear end face of the threaded tube is fixedly extended through the rear side of the inside of the recycling box to the rear side of the recycling box. The surface of the threaded tube contacts the surface of the heating tank. A support rod is fixedly connected to the bottom surface of the heating tank. The bottom end face of the support rod is rotatably connected to the bottom surface of the inside of the recycling box through a bearing seat. The surface of the heating tank is rotatably connected to the inner wall of the recycling box through a bearing seat. A motor is fixedly connected to the top surface of the recycling box. The bottom end face of the motor output rod extends through the top surface of the recycling box to the inside of the recycling box. A gear is fixedly sleeved on the surface of the motor output rod. A gear ring is fixedly sleeved on the surface of the heating tank. The side of the gear meshes with the side of the gear ring. An exhaust pipe is provided above the gear on the left side. A connecting box is fixedly connected to the left side of the recycling box. The left end face of the exhaust pipe is fixedly extended through the left side of the inside of the recycling box and the right side of the connecting box to the inside of the connecting box. An air outlet pipe is provided above the connecting box. The bottom end face of the air outlet pipe is fixedly extended through the top surface of the connecting box to the inside of the connecting box. The support rod provides support for the heating tank.

[0012] Preferably, the negative electrode of the power supply and the positive electrode of the buzzer are connected by a wire, and the negative electrode of the power supply and the positive electrode of the buzzer are respectively connected to the positive electrode plate and the negative electrode plate by another wire, so that the buzzer emits a prompt when the positive electrode plate and the negative electrode plate are in contact.

[0013] Preferably, a temperature sensor is installed inside the heating tank, and a connecting seat is fixedly installed on the bottom surface of the temperature sensor. The bottom surface of the heating tank is fixedly connected to the bottom surface of the connecting seat. The temperature sensor facilitates the measurement of the water temperature in the heating tank, thereby preventing the water in the heating tank from rising and not being discharged. The connecting seat prevents the temperature sensor from detecting the temperature on the surface of the heating tank.

[0014] Preferably, the temperature sensor is an NTC temperature sensor, the heating tank is made of metal, and the NTC temperature sensor is waterproof.

[0015] Preferably, the exhaust pipe is equipped with a sealing ball, the surface of which is pressed against the inner wall of the exhaust pipe. A connecting plate is fixedly connected to the left side of the sealing ball. Two sliding rods are provided on the left side of the connecting plate. The right end of each sliding rod slides through the left side of the connecting plate and extends to the right side of the connecting plate. The left and right ends of each sliding rod are fixedly connected to the left and right sides of the inside of the connecting box, respectively. A spring is sleeved on the surface of the sliding rod. The left and right ends of each spring are fixedly connected to the left side of the inside of the connecting box and the left side of the connecting plate, respectively. By pressing the sealing ball, the float is moved away from the exhaust pipe, facilitating the discharge of gas from the recovery box.

[0016] Preferably, the two slide bars are symmetrically arranged on the upper and lower sides of the exhaust pipe, and the slide bars improve the stability of the connecting plate when it moves.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This steam recovery device for coal-fired power generation uses a float to move the first connecting rod up and down, allowing the positive and negative electrode plates to contact or detach. When no water is added to the heating tank, the float moves the first connecting rod downward, causing the positive and negative electrode plates to contact each other. A buzzer then sounds an alarm to remind workers that there is no water in the heating tank, preventing steam from being directly released due to lack of water in the heating tank and improving the reminder effect of the steam recovery device for coal-fired power generation.

[0019] This steam recovery device for coal-fired power generation utilizes a recovery assembly to heat the water in the heating tank by contacting a threaded pipe with the heating tank. Simultaneously, the rotating heating tank facilitates thorough heating of the water through mixing and rotation. Furthermore, a sealing ball, connecting plate, sliding rod, and spring allow for easy removal from the exhaust pipe, preventing excessive internal pressure from damaging the recovery tank and thus improving the device's steam recovery efficiency for coal-fired power generation. Attached Figure Description

[0020] Figure 1 This is a front sectional perspective view of the heating tank of this utility model;

[0021] Figure 2 This is a perspective view of the overall main view of this utility model;

[0022] Figure 3 This is a rear-view perspective view of the entire utility model;

[0023] Figure 4 This is a perspective view of the gear ring of this utility model;

[0024] Figure 5 This is a perspective view of the slide bar of this utility model;

[0025] Figure 6 This is a perspective view of the float of this utility model.

[0026] In the diagram: 1. Recycling bin; 2. Heating tank; 3. Inlet pipe; 4. Outlet pipe; 50. Recycling assembly; 501. Threaded pipe; 502. Support rod; 503. Motor; 504. Gear; 505. Gear ring; 508. Exhaust pipe; 509. Connecting box; 5010. Vent pipe; 5011. Sealing ball; 5012. Connecting plate; 5013. Slide rod; 5014. Spring; 51. Reminder assembly; 511. Float ball; 512. First connecting rod; 513. Power supply; 514. Buzzer; 515. Second connecting rod; 516. Positive electrode plate; 517. Negative electrode plate; 518. Temperature sensor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: Please refer to Figure 1 - Figure 6 This utility model provides a technical solution: a steam recovery device for coal-fired power generation, including a recovery box 1;

[0029] A heating tank 2 extends through the top surface of recycling bin 1 and into the interior of recycling bin 1;

[0030] The water inlet pipe 3 and water outlet pipe 4 are fixedly fixed through the top surface of the heating tank 2. A valve is installed inside the water inlet pipe 3. A recovery component 50 is installed on the side of the heating tank 2. Both the water inlet pipe 3 and the water outlet pipe 4 are connected to a pump body (not shown in the figure). The specific model of the pump body is not an improvement point of this application, so it will not be described here.

[0031] The heating tank 2 is equipped with a reminder component 51.

[0032] The reminder component 51 includes a float 511 located inside the heating tank 2 and a first connecting rod 512. The bottom end of the first connecting rod 512 is fixedly connected to the top end of the float 511, and the top end of the first connecting rod 512 slides through the top surface inside the heating tank 2 and extends to the top of the heating tank 2. A positive electrode plate 516 is fixedly connected to the right side of the first connecting rod 512. A second connecting rod 515 is provided on the right side of the first connecting rod 512. A negative electrode plate 517 is fixedly connected to the left side of the second connecting rod 515. The negative electrode plate 517 is located to the lower right of the positive electrode plate 516. The bottom end of the second connecting rod 515 is fixedly connected to the top surface of the heating tank 2. A [missing information - likely a device or component] is provided on the rear side of the first connecting rod 512. The power supply 513 and buzzer 514 are fixedly installed on the top surface of the heating tank 2. Through the reminder component 51, the float 511 drives the first connecting rod 512 to rise and fall, so that the positive electrode plate 516 and the negative electrode plate 517 make contact or disengage. When no water is added to the heating tank 2, the float 511 drives the first connecting rod 512 to move downward, so that the positive electrode plate 516 and the negative electrode plate 517 make contact, and the buzzer 514 sounds an alarm to remind the staff that there is no water in the heating tank 2, so as to avoid the direct discharge of steam due to the lack of water in the heating tank 2, and improve the reminder effect of the steam recovery device for coal-fired power production.

[0033] The negative electrode of power supply 513 and the positive electrode of buzzer 514 are connected by a wire. The negative electrode of power supply 513 and the positive electrode of buzzer 514 are respectively connected to positive electrode plate 516 and negative electrode plate 517 by another wire.

[0034] A temperature sensor 518 is installed inside the heating tank 2. A connecting seat is fixedly installed on the bottom surface of the temperature sensor 518, and the bottom surface of the heating tank 2 is fixedly connected to the bottom surface of the connecting seat.

[0035] Temperature sensor 518 is set to NTC temperature sensor, and heating tank 2 is made of metal.

[0036] Example 2: Based on Example 1, a preferred embodiment of the steam recovery device for coal-fired power generation provided by this utility model is as follows: Figure 1 - Figure 4 and Figure 6As shown: The recycling assembly 50 includes a threaded tube 501 surrounding the side of the heating tank 2. The rear end face of the threaded tube 501 is fixedly inserted through the rear side of the inside of the recycling box 1 and extends to the rear side of the recycling box 1. The surface of the threaded tube 501 contacts the surface of the heating tank 2. A support rod 502 is fixedly connected to the bottom surface of the heating tank 2. The bottom end face of the support rod 502 is rotatably connected to the bottom surface of the inside of the recycling box 1 through a bearing seat. The surface of the heating tank 2 is rotatably connected to the inner wall of the recycling box 1 through a bearing seat. A motor 503 is fixedly connected to the top surface of the recycling box 1. The bottom end face of the output rod of the motor 503 extends through the top surface of the recycling box 1 and into the inside of the recycling box 1. A gear 504 is fixedly sleeved on the surface of the output rod of the motor 503. A gear ring 505 is fixedly sleeved on the surface of the heating tank 2. The side of the gear 504 meshes with the side of the gear ring 505. An exhaust pipe 508 is provided on the upper left side of the gear 504. A connecting box 509 is fixedly connected. The left end face of the exhaust pipe 508 is fixedly inserted through the left side of the inside of the recovery box 1 and the right side of the connecting box 509, extending into the inside of the connecting box 509. An exhaust pipe 5010 is provided above the connecting box 509. The bottom end face of the exhaust pipe 5010 is fixedly inserted through the top surface of the connecting box 509, extending into the inside of the connecting box 509. Through the recovery assembly 50, the heating tank 2 contacts the threaded pipe 501, so that the steam heat in the threaded pipe 501 heats the water in the heating tank 2. At the same time, the heating tank 2 rotates, which facilitates the mixing and rotation of the water in the heating tank 2 for sufficient heating. Meanwhile, the sealing ball 5011, connecting plate 5012, sliding rod 5013 and spring 5014 are used to facilitate removal from the exhaust pipe 508, thereby preventing excessive air pressure inside the recovery box 1 and damaging the recovery box, thus improving the steam recovery effect of the device for coal-fired power production.

[0037] The exhaust pipe 508 is provided with a sealing ball 5011. The surface of the sealing ball 5011 is pressed and connected to the inner wall of the exhaust pipe 508. A connecting plate 5012 is fixedly connected to the left side of the sealing ball 5011. Two sliding rods 5013 are provided on the left side of the connecting plate 5012. The two sliding rods 5013 are symmetrically arranged on the upper and lower sides of the exhaust pipe 508. The right end of the sliding rod 5013 slides through the left side of the connecting plate 5012 and extends to the right side of the connecting plate 5012. The left and right end faces of the sliding rod 5013 are fixedly connected to the left and right sides of the inside of the connecting box 509, respectively. A spring 5014 is sleeved on the surface of the sliding rod 5013. The left and right end faces of the spring 5014 are fixedly connected to the left side of the inside of the connecting box 509 and the left side of the connecting plate 5012, respectively.

[0038] In use, water is added to the heating tank 2 through the inlet pipe 3, and steam is introduced into the threaded pipe 501. The heat of the steam in the threaded pipe 501 is conducted to the heating tank 2, thereby heating the water in the heating tank 2. The motor 503 is turned on, and the output rod of the motor 503 drives the connected gear 504 to rotate. Through the meshing transmission of the gear 504 and the gear ring 505, the heating tank 2 rotates, and the water in the heating pipe 2 mixes and rotates, thereby fully heating the water in the heating tank 2. The temperature sensor 518 detects the water temperature in the heating tank 2. When the temperature is high, the water in the heating tank 2 is extracted through the outlet pipe 4 to prevent the steam heat in the threaded pipe 501 from being wasted.

[0039] When the pressure in the recovery box 1 is high, steam enters the exhaust pipe 508 and squeezes the sealing ball 5011. The sealing ball 5011 drives the connecting plate 5012 to slide on the slide rod 5013, thereby causing the seal 5011 to move away from the exhaust pipe 508. Then, the steam enters the connecting box 509 and is discharged through the vent pipe 5010. When the pressure in the recovery box 1 decreases, the spring 5014 forces the seal 5011 to move towards the exhaust pipe 508, thereby blocking the exhaust pipe 508 and reducing the steam discharge from the recovery box 1.

[0040] When no water is added to the heating tank 2, the float 511 moves downward under gravity. The float 511 drives the first connecting rod 512 to move downward, causing the positive electrode plate 516 to move downward and come into contact with the negative electrode plate 517. This forms a closed circuit between the positive electrode plate 516, the negative electrode plate 517, the power supply 513, and the buzzer 514, prompting the buzzer 514 to sound an alarm and inform the staff that water needs to be added to the heating tank 2. Similarly, when water is added to the heating tank 2, the float 511 floats up and drives the first connecting rod 512 and the positive electrode plate 516 to move upward. The positive electrode plate 516 and the negative electrode plate 517 do not come into contact, so a closed circuit cannot be formed, and the buzzer 514 does not sound an alarm.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steam recovery device for coal-fired power generation, comprising a recovery box (1); A heating tank (2) extends through the top surface of the recycling bin (1) and into the interior of the recycling bin (1); And a water inlet pipe (3) and a water outlet pipe (4) that are respectively fixed through the top surface of the heating tank (2), wherein a valve is provided inside the water inlet pipe (3), characterized in that: A recycling component (50) is provided on the side of the heating tank (2); The heating tank (2) is equipped with a reminder component (51).

2. The steam recovery device for coal-fired power generation according to claim 1, characterized in that: The reminder component (51) includes a float (511) located inside the heating tank (2) and a first connecting rod (512). The bottom end of the first connecting rod (512) is fixedly connected to the top end of the float (511). The top end of the first connecting rod (512) slides through the top end of the heating tank (2) and extends to the top of the heating tank (2). A positive electrode plate (516) is fixedly connected to the right side of the first connecting rod (512). A second connecting rod is provided on the right side of the first connecting rod (512). The second connecting rod (515) has a negative electrode plate (517) fixedly connected to its left side. The negative electrode plate (517) is located to the right and below the positive electrode plate (516). The bottom end of the second connecting rod (515) is fixedly connected to the top surface of the heating tank (2). A power supply (513) and a buzzer (514) are provided on the rear side of the first connecting rod (512). The bottom surface of the power supply (513) and the bottom surface of the buzzer (514) are both fixedly installed on the top surface of the heating tank (2).

3. A steam recovery device for coal-fired power generation according to claim 1, characterized in that: The recycling assembly (50) includes a threaded tube (501) surrounding the side of the heating tank (2). The rear end face of the threaded tube (501) is fixedly inserted through the rear side of the inside of the recycling box (1) and extends to the rear side of the recycling box (1). The surface of the threaded tube (501) is in contact with the surface of the heating tank (2). A support rod (502) is fixedly connected to the bottom surface of the heating tank (2). The bottom end face of the support rod (502) is rotatably connected to the bottom surface inside the recycling box (1) through a bearing seat. The surface of the heating tank (2) is rotatably connected to the inner wall of the recycling box (1) through a bearing seat. A motor (503) is fixedly connected to the top surface of the recycling box (1). The bottom end face of the output rod of the motor (503) extends through the top surface of the recycling box (1) and into the inside of the recycling box (1). A gear (504) is fixedly sleeved on the surface of the output rod of the motor (503), and a gear ring (505) is fixedly sleeved on the surface of the heating tank (2). The side of the gear (504) meshes with the side of the gear ring (505). An exhaust pipe (508) is provided on the upper left of the gear (504). A connecting box (509) is fixedly connected to the left side of the recycling box (1). The left end face of the exhaust pipe (508) is fixedly inserted through the left side of the recycling box (1) and the right side of the connecting box (509) and extends into the connecting box (509). An air outlet pipe (5010) is provided above the connecting box (509). The bottom end face of the air outlet pipe (5010) is fixedly inserted through the top surface of the connecting box (509) and extends into the connecting box (509).

4. A steam recovery device for coal-fired power generation according to claim 2, characterized in that: The negative electrode of the power supply (513) and the positive electrode of the buzzer (514) are connected by a wire, and the negative electrode of the power supply (513) and the positive electrode of the buzzer (514) are respectively connected to the positive electrode plate (516) and the negative electrode plate (517) by another wire.

5. A steam recovery device for coal-fired power generation according to claim 2, characterized in that: The heating tank (2) is equipped with a temperature sensor (518), and a connecting seat is fixedly installed on the bottom surface of the temperature sensor (518). The bottom surface of the heating tank (2) is fixedly connected to the bottom surface of the connecting seat.

6. A steam recovery device for coal-fired power generation according to claim 5, characterized in that: The temperature sensor (518) is an NTC temperature sensor, and the heating tank (2) is made of metal.

7. A steam recovery device for coal-fired power generation according to claim 3, characterized in that: The exhaust pipe (508) is provided with a sealing ball (5011), the surface of the sealing ball (5011) is pressed and connected to the inner wall of the exhaust pipe (508), a connecting plate (5012) is fixedly connected to the left side of the sealing ball (5011), two sliding rods (5013) are provided on the left side of the connecting plate (5012), the right end of the sliding rod (5013) slides through the left side of the connecting plate (5012) and extends to the right side of the connecting plate (5012), the left and right end faces of the sliding rod (5013) are fixedly connected to the left and right sides of the inside of the connecting box (509) respectively, and a spring (5014) is sleeved on the surface of the sliding rod (5013), the left and right end faces of the spring (5014) are fixedly connected to the left side of the inside of the connecting box (509) and the left side of the connecting plate (5012) respectively.

8. A steam recovery device for coal-fired power generation according to claim 7, characterized in that: The two slide bars (5013) are symmetrically arranged on the upper and lower sides of the exhaust pipe (508).

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