Energy-saving device with prying heat storage

Abstract

The utility model discloses pry energy -conserving device of heat storage, relates to heat recovery field, including fixed frame, the inside fixed of one side of fixed frame is equipped with water tank, and the inside fixed of another side of fixed frame is equipped with pressure vessel jar, and the bottom between water tank and the bottom of pressure vessel jar is equipped with first water pipe fixedly, and the pipe wall of first water pipe is equipped with first water pump fixedly, the both sides inner wall of fixed frame is equipped with first heat exchanger and second heat exchanger respectively and is equipped with the smoke pipe between first heat exchanger and second heat exchanger fixedly, and the top of first heat exchanger is equipped with the inlet pipe fixedly. The utility model is through two -stage heat exchange structure and fully recovers the waste heat of different temperature interval in high temperature hot smoke, reduces energy waste, pry type fixed frame integration each component, compact structure, is convenient for installation, removes and maintains, adapts the high temperature hot smoke waste heat recovery of multiple industrial scene, reduces enterprise energy consumption, promotes heat exchange efficiency and heat storage practicability.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery, specifically to a skid-mounted thermal energy storage and energy-saving device. Background Technology

[0002] In the industrial production sector, large equipment (such as metallurgical furnaces, chemical reaction vessels, and power generation boilers) continuously generate a large amount of high-temperature hot smoke during operation. The heat carried by this smoke is usually in a high temperature range. If it is directly discharged to the outside, a large amount of heat energy will be lost without being effectively utilized, resulting in serious energy waste.

[0003] With increasingly stringent requirements for energy conservation and environmental protection, how to recover and utilize the waste heat in high-temperature flue gas has become an urgent problem to be solved in industrial production. Traditional heat recovery devices have significant limitations. Some devices can only recover flue gas in a specific temperature range, resulting in poor adaptability. Other devices suffer from poor heat recovery effects due to low heat exchange efficiency and unstable performance of heat storage media. A large amount of waste heat is still not fully utilized, which makes it difficult to meet energy-saving requirements and also fails to effectively reduce the indirect impact of pollutant emissions.

[0004] Therefore, a skid-mounted thermal energy storage device is proposed. Utility Model Content

[0005] In view of the problems existing in the above-mentioned thermal energy storage devices, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a skid-mounted thermal energy storage device, which solves the problems raised in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A skid-mounted thermal energy storage device includes a fixed frame, a water tank is fixedly installed inside one side of the fixed frame, and a pressure vessel is fixedly installed inside the other side of the fixed frame. A first water pipe is fixedly installed between the bottom of the water tank and the bottom of the pressure vessel, and a first water pump is fixedly installed on the wall of the first water pipe. The inner walls on both sides of the fixed frame are respectively fixed with a first heat exchanger and a second heat exchanger, and a smoke guide pipe is fixed between the first heat exchanger and the second heat exchanger. A smoke inlet pipe is fixed at the top of the first heat exchanger, and a smoke outlet pipe is fixed at the top of the second heat exchanger. A second water pipe is fixedly installed on the side wall of the pressure vessel. The end of the second water pipe away from the pressure vessel is fixedly connected to the inlet end of the internal water pipe of the first heat exchanger. A second water pump is fixedly installed on the wall of the second water pipe. A steam pipe is fixedly installed at the outlet end of the internal water pipe of the first heat exchanger, and the end of the steam pipe away from the first heat exchanger is fixedly connected to the pressure vessel. An exhaust pipe is fixedly installed on the top of the pressure vessel.

[0008] Preferably, a flue gas outlet is fixedly provided at the top of the first heat exchanger.

[0009] Preferably, the smoke inlet pipe is connected to the smoke outlet of a large external device.

[0010] Furthermore, the second heat exchanger is equipped with an antifreeze circulation pipe inside, and a section of the antifreeze circulation pipe extends into the interior of the water tank. The antifreeze circulation pipe inside the second heat exchanger is equipped with an antifreeze circulation pump.

[0011] Preferably, a steam pressure measuring tube is fixedly installed on the top of the pressure vessel.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model forms a two-stage heat exchange structure by setting up a first heat exchanger and a second heat exchanger. The high-temperature hot flue gas first exchanges heat with the water transported by the pressure vessel tank through the first heat exchanger to generate steam for storage, and then enters the second heat exchanger through the flue gas pipe. The remaining heat is absorbed by the antifreeze circulation pipe and transferred to the water tank, which fully recovers the waste heat in different temperature ranges, avoids heat energy waste, and improves the energy-saving effect.

[0013] 2. This utility model adopts a skid-mounted fixed frame to integrate components such as water tank, pressure vessel, first heat exchanger and second heat exchanger. It has a compact structure and high integration, which facilitates overall installation, movement and maintenance, and adapts to the flexible deployment needs of different industrial scenarios.

[0014] 3. This utility model can release pressure in time when the hot flue gas pressure is too high by setting the flue gas vent at the top of the first heat exchanger. The pressure vessel is equipped with a steam pressure measuring pipe and an exhaust pipe, which can monitor the pressure inside the tank in real time and regulate it through exhaust. Multiple safety structures ensure the stability and safety of the equipment operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the present utility model; Figure 3 This is a top view of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Fixed frame; 2. Water tank; 3. Pressure vessel; 4. First water pipe; 5. First water pump; 6. First heat exchanger; 7. Second heat exchanger; 8. Smoke guide pipe; 9. Smoke inlet pipe; 10. Smoke vent; 11. Smoke outlet pipe; 12. Second water pipe; 13. Second water pump; 14. Steam pipe; 15. Exhaust pipe; 16. Steam pressure measuring pipe. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] This utility model provides, for example Figure 1-3 The skid-mounted thermal energy storage device shown includes a fixed frame 1. A water tank 2 is fixedly installed inside one side of the fixed frame 1, and a water filling cap is provided on the top of the water tank 2. Water can be added into the water tank 2 by opening the cap. A pressure vessel tank 3 is fixedly installed inside the other side of the fixed frame 1. A first water pipe 4 is fixed between the bottom of the water tank 2 and the bottom of the pressure vessel tank 3, and a first water pump 5 is fixedly installed on the wall of the first water pipe 4. A first heat exchanger 6 and a second heat exchanger 7 are fixedly installed on the inner walls of both sides of the fixed frame 1, respectively. A flue pipe 8 is fixed between the first heat exchanger 6 and the second heat exchanger 7. A flue pipe 9 is fixedly installed on the top of the first heat exchanger 6. The flue pipe 9 connects to the flue gas outlet of a large external equipment. The pressure vessel tank 3 is connected to the pressure vessel tank 3. A flue gas outlet 10 is fixedly provided on the top of the first heat exchanger 6, and a flue gas outlet pipe 11 is fixedly provided on the top of the second heat exchanger 7. A second water pipe 12 is fixedly provided on the side wall of the pressure vessel tank 3. The end of the second water pipe 12 away from the pressure vessel tank 3 is fixedly connected to the water inlet end of the internal water pipe of the first heat exchanger 6. A second water pump 13 is fixedly provided on the pipe wall of the second water pipe 12. A steam pipe 14 is fixedly provided on the water outlet end of the internal water pipe of the first heat exchanger 6, and the end of the steam pipe 14 away from the first heat exchanger 6 is fixedly connected to the pressure vessel tank 3. An exhaust pipe 15 is fixedly provided on the top of the pressure vessel tank 3. Excess steam can be discharged through the exhaust pipe 15 to regulate the pressure inside the pressure vessel tank 3.

[0020] The second heat exchanger 7 is equipped with an antifreeze circulation pipe, and a section of the antifreeze circulation pipe extends into the water tank 2. The antifreeze circulation pipe inside the second heat exchanger 7 is equipped with an antifreeze circulation pump.

[0021] A steam pressure measuring tube 16 is fixedly installed on the top of the pressure vessel tank 3. The steam pressure measuring tube 16 can detect the steam pressure inside the tank to ensure the safe and stable heat storage process.

[0022] Working principle: First, the exhaust port of the large equipment is fixedly connected to the inlet pipe 9 through an external pipe, so that the high-temperature hot smoke generated by the large equipment is pushed into the first heat exchanger 6 through the inlet pipe 9 (the large equipment is equipped with a fan module, which can push the generated hot smoke into the inlet pipe 9 to ensure the hot smoke flows inside the device). At the same time, the water in the pressure vessel tank 3 is sent into the internal water pipe of the first heat exchanger 6 through the second water pipe 12 under the drive of the second water pump 13. The high-temperature hot smoke and the water in the water pipe exchange heat, so that the water absorbs heat and converts into steam. The steam then flows back to the pressure vessel tank 3 through the steam pipe 14 for storage, realizing the recovery and storage of heat energy. If the hot smoke pressure is too high, it can be depressurized through the exhaust port 10 at the top of the first heat exchanger 6 to ensure the safety of the equipment. The hot flue gas, after initial heat exchange, enters the second heat exchanger 7 through the flue pipe 8. At this time, the antifreeze circulation pipe inside the second heat exchanger 7 operates under the action of the circulation pump. After the antifreeze absorbs the remaining heat in the hot flue gas, part of the pipe extending into the water tank 2 will transfer the heat to the water in the water tank 2, further recovering the waste heat and preventing the temperature inside the water tank 2 from being too low. Finally, the cooled hot flue gas is discharged through the flue pipe 11. The exhaust pipe 15 at the top of the pressure vessel tank 3 can discharge excess steam to regulate the pressure inside the tank. The steam pressure measuring pipe 16 can detect the steam pressure inside the tank to ensure the safety and stability of the heat storage process. Through two-stage heat exchange, the device can fully recover the heat in different temperature ranges from the high-temperature hot flue gas, achieving efficient heat storage and energy saving.

[0023] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A skid-mounted thermal energy storage device, comprising a fixed frame (1), characterized in that: A water tank (2) is fixedly installed inside one side of the fixed frame (1), and a pressure vessel tank (3) is fixedly installed inside the other side of the fixed frame (1). A first water pipe (4) is fixedly installed between the bottom of the water tank (2) and the bottom of the pressure vessel tank (3), and a first water pump (5) is fixedly installed on the wall of the first water pipe (4). The inner walls of both sides of the fixed frame (1) are respectively fixed with a first heat exchanger (6) and a second heat exchanger (7), and a smoke guide pipe (8) is fixed between the first heat exchanger (6) and the second heat exchanger (7). A smoke inlet pipe (9) is fixed at the top of the first heat exchanger (6), and a smoke outlet pipe (11) is fixed at the top of the second heat exchanger (7). The pressure vessel (3) is fixedly provided with a second water pipe (12) on its side wall. The end of the second water pipe (12) away from the pressure vessel (3) is fixedly connected to the water inlet end of the internal water pipe of the first heat exchanger (6). The wall of the second water pipe (12) is fixedly provided with a second water pump (13). The water outlet end of the internal water pipe of the first heat exchanger (6) is fixedly provided with a steam pipe (14). The end of the steam pipe (14) away from the first heat exchanger (6) is fixedly connected to the pressure vessel (3). The top of the pressure vessel (3) is fixedly provided with an exhaust pipe (15).

2. The skid-mounted thermal energy storage device according to claim 1, characterized in that: The top of the first heat exchanger (6) is fixedly provided with a flue gas outlet (10).

3. The skid-mounted thermal energy storage device according to claim 1, characterized in that: The inlet pipe (9) is connected to the outlet of a large external equipment.

4. The skid-mounted thermal energy storage device according to claim 1, characterized in that: The second heat exchanger (7) is provided with an antifreeze circulation pipe inside, and a section of the antifreeze circulation pipe extends into the interior of the water tank (2). The antifreeze circulation pipe inside the second heat exchanger (7) is equipped with an antifreeze circulation pump.

5. The skid-mounted thermal energy storage device according to claim 1, characterized in that: A steam pressure measuring tube (16) is fixedly installed on the top of the pressure vessel (3).

Images