Heat storage device of steam boiler

Abstract

The utility model relates to the technical field of steam boiler equipment, and discloses a heat storage device of a steam boiler, which is arranged on the right side of a steam boiler body, a heat storage device body is arranged on the right side of the steam boiler body, and the upper end of the steam boiler body is fixedly connected with a high-pressure steam pipe. According to the heat storage device of the steam boiler, when the heat supply amount is small and unstable, a user side needs steam, and the steam boiler cannot meet the requirement in time, softened water is evenly sprayed on the heat storage medium through the spray heads at the lower ends of the liquid distribution pipes, the heat storage medium transmits heat to the softened water, the softened water is converted into low-pressure steam (0.3-0.4 MPa), and the steam boiler can be used for heat storage. Low-pressure steam is discharged from the steam outlet pipe at the upper end of the shell, meanwhile, the self-operated regulating valve on the outer side of the connecting pipe automatically regulates the pressure reduction degree of the high-pressure steam according to system pressure, stable supply of the low-pressure steam is guaranteed, through heat storage and heat release of the heat storage device body, the steam boiler body operates stably and is not prone to being started frequently, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of steam boiler equipment, and particularly relates to a heat storage device for a steam boiler. Background Art

[0002] In industrial production and daily life, steam boilers are widely used as important heat source devices. A steam boiler is an energy conversion device that heats water into steam by burning fuel or other energy sources, and can continuously and stably generate steam to provide a reliable heat source for various industrial production and daily life needs.

[0003] Under the working conditions where the heat supply demand is small and unstable, the user's requirement for the steam pressure is usually low, generally about 0.3 - 0.4 MPa. However, traditional steam boilers often operate at a higher pressure, such as up to 0.9 MPa. This leads to the situation that when the heat supply does not match the demand, it is difficult for the steam boiler to meet the requirements of the actual working conditions. When the heat supply is excessive, the excess high-pressure steam cannot be effectively utilized, and when the heat supply is insufficient, the steam boiler may affect its service life due to frequent output adjustment. Therefore, a heat storage device for a steam boiler is proposed. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a heat storage device for a steam boiler, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by the utility model is: a heat storage device for a steam boiler is arranged on the right side of the steam boiler body. There is a heat storage device body arranged on the right side of the steam boiler body. A high-pressure steam pipe is fixedly connected to the upper end of the steam boiler body, and a connecting pipe is fixedly connected to the outside of the high-pressure steam pipe. A self-operated regulating valve is fixedly connected to the outside of the connecting pipe. A steam-water separator is arranged on the right side of the heat storage device body. The output end of the steam-water separator is fixedly connected to a low-pressure steam pipe, and a steam distribution cylinder is arranged on the right side of the steam-water separator;

[0006] The heat storage device body includes a housing, a safety valve, a heat insulation layer, a heat storage medium, a heat exchange pipe, a water inlet pipe, a check valve, a liquid distribution pipe, a spray head, a steam trap, an outlet pipe and an inner shell. The safety valve is fixedly connected to the upper end of the housing. The heat insulation layer is fixedly connected inside the housing. The inner shell is fixedly connected inside the heat insulation layer. The heat storage medium is fixedly connected inside the inner shell. The heat exchange pipe is fixedly connected inside the housing. The water inlet pipe is fixedly connected to the upper end of the housing. The check valve is fixedly connected to the outside of the water inlet pipe. The liquid distribution pipe is fixedly connected to the lower end of the water inlet pipe. The spray head is fixedly connected to the lower end of the liquid distribution pipe. The steam trap is fixedly connected to the right side of the housing. The outlet pipe is fixedly connected to the upper end of the housing.

[0007] Preferably, the lower end of the high-pressure steam pipe is fixedly connected to the input end of the heat exchange pipe, and the heat exchange pipe is in a reciprocally bent structure.

[0008] Through the above technical solution, the heat exchange pipe is in a reciprocally bent structure, which increases the contact area with the high-pressure steam, improves the heat exchange efficiency, enables the heat of the high-pressure steam to be quickly transferred to the heat storage medium for storage, and meets the energy storage requirements when the heat supply is excessive.

[0009] Preferably, the heat storage medium is made of alumina ceramics, and the heat insulation layer is made of aluminosilicate fiber blanket.

[0010] Through the above technical solution, the heat storage medium is made of alumina ceramics, which has good heat resistance and heat storage stability, can efficiently absorb and store heat, provides a stable heat source when the heat supply is small and unstable, and ensures the continuous supply of low-pressure steam. The heat insulation layer is made of aluminosilicate fiber blanket, which effectively reduces the heat loss from the inside of the heat storage device body to the external environment and improves the energy utilization efficiency.

[0011] Preferably, the liquid distribution pipe is arranged directly above the heat storage medium.

[0012] Through the above technical solution, the liquid distribution pipe is arranged directly above the heat storage medium. During use, softened water is injected from the water inlet pipe, and the softened water can be evenly sprayed on the heat storage medium through the nozzle, so that the softened water can more fully absorb the heat released by the heat storage medium and quickly convert it into low-pressure steam. The condensed water can be discharged through the steam trap.

[0013] Preferably, both ends of the connecting pipe are fixedly connected to the high-pressure steam pipe and the steam outlet pipe respectively.

[0014] Through the above technical solution, a connecting pipe is provided. The low-pressure steam generated after the high-pressure steam in the high-pressure steam pipe is directly decompressed by the self-acting regulating valve is mixed with the low-pressure steam produced inside the heat storage device body and then enters the steam-water separator together, maintaining a stable output of low-pressure steam, and the use effect is good.

[0015] Preferably, the input end of the steam-water separator is fixedly connected to the connecting pipe.

[0016] Through the above technical solution, the steam-water separator can effectively separate the moisture in the low-pressure steam, improve the quality of the steam, ensure that the steam delivered to the steam distribution cylinder and each user is dry and stable, and meet the user's requirements.

[0017] Preferably, the output end of the low-pressure steam pipe is fixedly connected to the input end of the steam distribution cylinder.

[0018] Through the above technical solution, the steam distribution cylinder distributes the low-pressure steam to users.

[0019] Compared with the prior art, the present utility model provides a heat storage device for a steam boiler, which has the following beneficial effects:

[0020] 1. For the heat storage device of the steam boiler, when the steam boiler body generates steam and the heat supply exceeds the user's demand, the high-pressure steam (0.9 MPa) generated by the steam boiler enters the heat exchange tube through the high-pressure steam pipe at the upper end. The high-pressure steam transfers heat to the heat storage medium made of alumina ceramics in the heat exchange tube. When the heat supply is small and unstable, and the user end demands steam while the steam boiler cannot meet it in time, softened water enters the heat storage device body through the water inlet pipe. The check valve outside the water inlet pipe ensures that the softened water can only flow in one direction. The softened water flows from the water inlet pipe into the liquid distribution pipe. The liquid distribution pipe is arranged directly above the heat storage medium. The softened water is evenly sprayed on the heat storage medium through the nozzles at the lower end of the liquid distribution pipe. The heat storage medium transfers heat to the softened water, converting it into low-pressure steam (0.3 - 0.4 MPa). The low-pressure steam is discharged from the steam outlet pipe at the upper end of the shell. At the same time, the self-acting regulating valve outside the connecting pipe automatically adjusts the pressure reduction degree of the high-pressure steam according to the system pressure to ensure the stable supply of low-pressure steam. The low-pressure steam enters the steam-water separator for steam-water separation to improve the steam quality. The low-pressure steam after steam-water separation is output through the low-pressure steam pipe and distributed to each user. Through the heat storage and heat release of the heat storage device body, the steam boiler body operates stably, is not prone to frequent startup, and extends the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic three-dimensional structure of the present utility model Figure 1 ;

[0022] Figure 2 Schematic three-dimensional structure of the present utility model Figure 2 ;

[0023] Figure 3 Schematic enlarged structure diagram of the heat storage device body of the present utility model;

[0024] Figure 4 Schematic disassembled structure of the heat storage device body of the present utility model Figure 1 ;

[0025] Figure 5 Schematic disassembled structure of the heat storage device body of the present utility model Figure 2 。

[0026] Wherein: 1. Steam boiler body; 2. Heat storage device body; 201. Outer shell; 202. Safety valve; 203. Thermal insulation layer; 204. Heat storage medium; 205. Heat exchange tube; 206. Water inlet pipe; 207. Check valve; 208. Liquid distribution pipe; 209. Sprinkler head; 210. Steam trap; 211. Steam outlet pipe; 212. Inner shell; 3. High-pressure steam pipe; 4. Connecting pipe; 5. Self-operated regulating valve; 6. Steam-water separator; 7. Low-pressure steam pipe; 8. Steam distribution cylinder. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1: As Figures 1-5 shown, a heat storage device of a steam boiler provided by the present invention is arranged on the right side of the steam boiler body 1. A heat storage device body 2 is arranged on the right side of the steam boiler body 1. A high-pressure steam pipe 3 is fixedly connected to the upper end of the steam boiler body 1. A connecting pipe 4 is fixedly connected to the outside of the high-pressure steam pipe 3. A self-operated regulating valve 5 is fixedly connected to the outside of the connecting pipe 4. A steam-water separator 6 is arranged on the right side of the heat storage device body 2. The output end of the steam-water separator 6 is fixedly connected to a low-pressure steam pipe 7. A steam distribution cylinder 8 is arranged on the right side of the steam-water separator 6;

[0029] The heat storage device body 2 includes an outer shell 201, a safety valve 202, a thermal insulation layer 203, a heat storage medium 204, a heat exchange tube 205, a water inlet pipe 206, a check valve 207, a liquid distribution pipe 208, a sprinkler head 209, a steam trap 210, a steam outlet pipe 211 and an inner shell 212. The safety valve 202 is fixedly connected to the upper end of the outer shell 201. The thermal insulation layer 203 is fixedly connected inside the outer shell 201. The inner shell 212 is fixedly connected inside the thermal insulation layer 203. The heat storage medium 204 is fixedly connected inside the inner shell 212. The heat exchange tube 205 is fixedly connected inside the outer shell 201. The water inlet pipe 206 is fixedly connected to the upper end of the outer shell 201. The check valve 207 is fixedly connected to the outside of the water inlet pipe 206. The liquid distribution pipe 208 is fixedly connected to the lower end of the water inlet pipe 206. The sprinkler head 209 is fixedly connected to the lower end of the liquid distribution pipe 208. The steam trap 210 is fixedly connected to the right side of the outer shell 201. The steam outlet pipe 211 is fixedly connected to the upper end of the outer shell 201.

[0030] Specifically, the lower end of the high-pressure steam pipe 3 is fixedly connected to the input end of the heat exchange pipe 205, and the heat exchange pipe 205 has a reciprocating bent structure. The advantage is that the heat exchange pipe 205 has a reciprocating bent structure, which increases the contact area with the high-pressure steam, improves the heat exchange efficiency, enables the heat of the high-pressure steam to be quickly transferred to the heat storage medium 204 for storage, and meets the energy storage requirements when the heat supply is excessive.

[0031] Specifically, the heat storage medium 204 is made of alumina ceramics, and the heat insulation layer 203 is made of aluminosilicate fiber blanket. The advantage is that the heat storage medium 204 is made of alumina ceramics, which has good heat resistance and heat storage stability, can efficiently absorb and store heat, provide a stable heat source when the heat supply is small and unstable, and ensure the continuous supply of low-pressure steam. The heat insulation layer 203 is made of aluminosilicate fiber blanket, which effectively reduces the heat loss from the inside of the heat storage device body 2 to the external environment and improves the energy utilization efficiency.

[0032] Embodiment 2: As Figures 2-5 shown, as an improvement over the previous embodiment.

[0033] Specifically, the liquid distribution pipe 208 is arranged directly above the heat storage medium 204. The advantage is that the liquid distribution pipe 208 is arranged directly above the heat storage medium 204. During use, softened water is injected from the water inlet pipe 206, and the softened water can be evenly sprayed on the heat storage medium 204 through the nozzle 209, so that the softened water can more fully absorb the heat released by the heat storage medium 204 and be quickly converted into low-pressure steam, and the condensed water can be discharged through the steam trap 210.

[0034] Specifically, both ends of the connecting pipe 4 are fixedly connected to the high-pressure steam pipe 3 and the steam outlet pipe 211 respectively. The advantage is that the connecting pipe 4 is provided. The low-pressure steam generated after the high-pressure steam in the high-pressure steam pipe 3 is directly decompressed by the self-acting regulating valve 5 is mixed with the low-pressure steam produced in the heat storage device body 2 and then enters the steam-water separator 6 together, maintaining a stable output of low-pressure steam and having a good use effect.

[0035] Specifically, the input end of the steam-water separator 6 is fixedly connected to the connecting pipe 4. The advantage is that the steam-water separator 6 can effectively separate the moisture in the low-pressure steam, improve the quality of the steam, ensure that the steam delivered to the steam distribution cylinder 8 and each user is dry and stable, and meet the user's requirements.

[0036] Specifically, the output end of the low-pressure steam pipe 7 is fixedly connected to the input end of the steam distribution cylinder 8. The advantage is that the steam distribution cylinder 8 distributes the low-pressure steam to the users.

[0037] Working principle: When in use, when the steam boiler body 1 generates steam and the heat supply exceeds the user's demand, the high-pressure steam (0.9 MPa) generated by the steam boiler enters the heat exchange tube 205 through the high-pressure steam pipe at the upper end. The high-pressure steam transfers heat to the heat storage medium 204 made of alumina ceramics in the heat exchange tube 205. When the heat supply is small and unstable, and the user end demands steam but the steam boiler cannot meet it in time, softened water enters the heat storage device body 2 through the water inlet pipe 206. The check valve 207 outside the water inlet pipe 206 ensures that the softened water can only flow in one direction. The softened water flows from the water inlet pipe 206 into the liquid distribution pipe 208. The liquid distribution pipe 208 is arranged directly above the heat storage medium 204. The softened water is evenly sprayed on the heat storage medium 204 through the nozzles 209 at the lower end of the liquid distribution pipe 208. The heat storage medium 204 transfers heat to the softened water, converting it into low-pressure steam (0.3 - 0.4 MPa). The low-pressure steam is discharged from the steam outlet pipe 211 at the upper end of the outer shell 201. At the same time, the self-operated regulating valve 5 outside the connecting pipe automatically adjusts the pressure reduction degree of the high-pressure steam according to the system pressure to ensure the stable supply of low-pressure steam. The low-pressure steam enters the steam-water separator 6 for steam-water separation to improve the steam quality. The low-pressure steam after steam-water separation is output through the low-pressure steam pipe 7 and the low-pressure steam is distributed to each user.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat storage device for a steam boiler, which is arranged on the right side of the steam boiler body (1), and is characterized in that: On the right side of the steam boiler body (1), there is a heat storage device body (2). At the upper end of the steam boiler body (1), a high-pressure steam pipe (3) is fixedly connected. On the outside of the high-pressure steam pipe (3), a connecting pipe (4) is fixedly connected. On the outside of the connecting pipe (4), a self-acting regulating valve (5) is fixedly connected. On the right side of the heat storage device body (2), there is a steam-water separator (6). At the output end of the steam-water separator (6), a low-pressure steam pipe (7) is fixedly connected. On the right side of the steam-water separator (6), there is a steam distribution cylinder (8). The heat storage device body (2) includes a housing (201), a safety valve (202), a heat insulation layer (203), a heat storage medium (204), a heat exchange pipe (205), a water inlet pipe (206), a check valve (207), a liquid distribution pipe (208), a spray head (209), a steam trap (210), a steam outlet pipe (211), and an inner housing (212). At the upper end of the housing (201), a safety valve (202) is fixedly connected. Inside the housing (201), a heat insulation layer (203) is fixedly connected. Inside the heat insulation layer (203), an inner housing (212) is fixedly connected. Inside the inner housing (212), a heat storage medium (204) is fixedly connected. Inside the housing (201), a heat exchange pipe (205) is fixedly connected. At the upper end of the housing (201), a water inlet pipe (206) is fixedly connected. On the outside of the water inlet pipe (206), a check valve (207) is fixedly connected. At the lower end of the water inlet pipe (206), a liquid distribution pipe (208) is fixedly connected. At the lower end of the liquid distribution pipe (208), a spray head (209) is fixedly connected. On the right side of the housing (201), a steam trap (210) is fixedly connected. At the upper end of the housing (201), a steam outlet pipe (211) is fixedly connected.

2. The heat storage device of a steam boiler according to claim 1, characterized in that: The lower end of the high-pressure steam pipe (3) is fixedly connected to the input end of the heat exchange pipe (205), and the heat exchange pipe (205) has a reciprocating bent structure.

3. The heat storage device of a steam boiler according to claim 1, characterized in that: The heat storage medium (204) is made of alumina ceramics, and the heat insulation layer (203) is made of aluminosilicate fiber blanket.

4. The heat storage device of a steam boiler according to claim 1, characterized in that: The liquid distribution pipe (208) is arranged directly above the heat storage medium (204).

5. A heat storage device for a steam boiler according to claim 1, characterized in that: Both ends of the connecting pipe (4) are fixedly connected to the high-pressure steam pipe (3) and the steam outlet pipe (211) respectively.

6. The heat storage device of a steam boiler according to claim 1, characterized in that: The input end of the steam-water separator (6) is fixedly connected to the connecting pipe (4).

7. The heat storage device of a steam boiler according to claim 1, characterized in that: The output end of the low-pressure steam pipe (7) is fixedly connected to the input end of the steam distribution cylinder (8).

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