CN205606902U - Boiler steam waste heat utilizes device in starch maize production - Google Patents

Abstract

The utility model discloses a boiler steam waste heat utilizes device in starch maize production belongs to boiler waste heat recovery technology field. Its technical scheme does: a boiler steam waste heat utilizes device in starch maize production wherein, has seted up the steam air vent at boiler top portion center, and delivery duct is connected to the steam air vent, is equipped with steam pump and high -temperature heat pipe hot -blast furnace I on delivery duct respectively, sets up high -temperature heat pipe hot -blast furnace II above high -temperature heat pipe hot -blast furnace I, sets up heat pipe row between high -temperature heat pipe hot -blast furnace I and the high -temperature heat pipe hot -blast furnace II side by side. The beneficial effects of the utility model are that: through setting up high -temperature heat pipe hot -blast furnace I and high -temperature heat pipe hot -blast furnace II in boiler top portion to and set up and to carry out the heat exchange at high -temperature heat pipe hot -blast furnace I and the high -temperature heat pipe hot -blast furnace II internal heat bank of tubes to the air of air -blower introduction, the hot gas passes through the water of heat exchanger in to the heat exchanger coil pipe and heats, and simple structure is equitable, and the energy saving has reduced the energy consumption.

Description

A boiler steam waste heat utilization device in corn starch production

technical field

The utility model relates to the technical field of boiler waste heat recovery, in particular to a boiler steam waste heat utilization device in corn starch production.

Background technique

At present, the hot steam generated by the boiler in the process of corn starch processing is generally discharged directly into the atmosphere through the fan. When the steam is discharged into the atmosphere, the heat in the steam is also discharged into the atmosphere. These large amounts of heat have not been fully utilized. In addition, a set of hot steam heat treatment technology at the top of the boiler has been introduced in China, but due to the large gas volume and high temperature of the hot steam, the control is cumbersome during operation, which brings great inconvenience to the operation. Big inconvenience.

Utility model content

In order to solve the shortcomings of the above-mentioned prior art, the purpose of this utility model is to provide a boiler steam waste heat utilization device in corn starch production.

The inventive concept of this utility model is: for the hot steam produced by the boiler in the existing rice starch processing process, it is directly discharged into the atmosphere by the fan, and at the same time when the steam is discharged into the atmosphere, the heat in the steam is also discharged into the atmosphere. The heat is not fully utilized, resulting in great waste, and the existing hot steam heat treatment technology, due to the large volume and high temperature of the hot steam, the control is more cumbersome during the operation process, and the operation is inconvenient. The utility model designs a boiler steam waste heat utilization device in the production of corn starch. A steam conveying pipe is arranged in the center of the boiler top, and a steam pump and a high-temperature heat pipe hot blast stove I are respectively arranged on the steam conveying pipe. The high-temperature heat pipe hot-blast stove II is arranged on the top, and the heat pipe row is arranged side by side between the high-temperature heat pipe hot-blast stove I and the high-temperature heat pipe hot-blast stove II. The air inlet of the heat pipe hot blast stove II is provided with a blower, and its air outlet is connected to the air inlet of the induced draft fan through an air delivery pipe, and a heat exchanger is arranged at the air outlet of the induced draft fan; The waste heat of hot steam is recovered and utilized to provide hot water for users.

A boiler steam waste heat utilization device in the production of corn starch, wherein a steam vent hole is opened in the center of the top of the boiler, the steam vent hole is connected to a steam delivery pipe, and a steam pump and a high-temperature heat pipe hot air are respectively arranged on the steam delivery pipe Furnace I, a high-temperature heat pipe hot-blast stove II is arranged above the high-temperature heat pipe hot-blast stove I, and a heat pipe row is arranged side by side between the high-temperature heat pipe hot-blast stove I and the high-temperature heat pipe hot-blast stove II, and the lower end of the heat pipe row is placed in the high-temperature In the heat pipe hot blast stove I, its upper end is located in the described high-temperature heat pipe hot blast stove II, the air inlet of the high temperature heat pipe hot blast stove II is provided with a blower, and its air outlet is connected to the air inlet of the induced draft fan through an air delivery pipeline, and the A heat exchanger is installed at the air outlet of the induced draft fan, the hot water supply pipe of the heat exchanger coil in the heat exchanger is connected to the top side of the heat preservation water tank, and the cold water delivery pipe of the heat exchanger coil is connected to the water storage tank ;

A control valve I and a circulating pump are arranged on the hot water supply pipe, and a control valve II and a water pump are arranged on the cold water delivery pipe;

A water delivery pipe is arranged on one side of the bottom of the heat preservation water tank, and a control valve III and a booster pump are respectively arranged on the water delivery pipe, and the top of the heat preservation water tank communicates with the atmosphere.

Described boiler, steam pump, high-temperature heat pipe hot-blast stove 1, the heat pipe row that the lower end is placed in described high-temperature heat-pipe hot-blast stove 1, and the steam conveying pipe that it communicates constitute boiler steam waste heat recovery channel.

The blower, the high-temperature heat pipe hot-blast stove II, the heat pipe rows whose upper ends are placed in the high-temperature heat-pipe hot-blast stove II, the induced draft fan, the heat exchanger, and the air conveying pipes connecting them form a hot-blast air induction channel.

The heat exchanger coil in the heat exchanger, the control valve 1, the heat preservation water tank of the circulating pump, and the hot water supply pipes connected to it are connected in sequence to form a hot water delivery channel.

The heat exchanger is a cartridge heat exchanger.

When the utility model works, when the boiler starts to work for a period of time, the control is turned on, the high-temperature heat pipe hot blast stove I, the high-temperature heat pipe hot blast stove II, and the power supply for heat exchange are sequentially turned on the steam pump, the blower, the induced draft fan, the control valve I, and the circulation pump , control valve II and water pump, the hot steam in the boiler enters the high-temperature heat pipe hot blast stove I through the steam delivery pipe under the action of the steam pump, absorbs the heat in the hot steam through the lower end of the heat pipe row, and transfers the heat to the heat pipe row The upper end, the upper end of the heat pipe row exchanges heat with the gas introduced by the blower connected to the high-temperature heat pipe hot blast furnace II. The hot gas after heat exchange is introduced into the heat exchanger by the induced draft fan, and then passes through the heat exchanger to the heat exchanger coil. The cold water is used for heat exchange, and the hot water is delivered to the heat preservation water storage tank under the action of the circulation pump, and the control valve III and the booster pump are opened to supply hot water to users.

The beneficial effects of the utility model are: the boiler steam waste heat utilization device in the production of corn starch of the utility model is provided with a high-temperature heat pipe hot blast stove I and a high-temperature heat pipe hot blast stove II at the top of the boiler, and is arranged on a high-temperature heat pipe hot blast stove I and a high-temperature heat pipe hot blast stove. The heat pipe row in the furnace II exchanges heat with the air introduced by the blower to form hot gas. The hot gas passes through the heat exchanger to heat the water in the heat exchanger coil. The structure of the utility model is simple and reasonable, and the heat in the steam in the boiler can be recovered efficiently , save energy and reduce energy consumption.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the utility model.

Wherein, the reference signs are: 1. Boiler; 2. Steam vent; 3. Steam delivery pipe; 4. Steam pump; 5. High temperature heat pipe hot blast stove I; 6. High temperature heat pipe hot blast stove II; , blower; 9, induced draft fan; 10, heat exchanger; 101, heat exchanger coil; 102, hot water supply pipe; 11, heat preservation water tank; 12, cold water delivery pipe; 13, control valve I; 14, circulating pump 15. Control valve II; 16. Water pump; 17. Water pipe; 18. Control valve III; 19. Booster pump.

detailed description

In order to make the purpose, technical solution, technical features and advantages of the solution clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

Referring to Fig. 1, the utility model is: a boiler steam waste heat utilization device in the production of corn starch, wherein a steam vent hole 2 is opened in the center of the top of the boiler 1, and the steam vent hole 2 is connected to the steam delivery pipe 3, and the steam delivery pipe 3 Steam pump 4 and high-temperature heat pipe hot-blast stove I5 are respectively arranged on the top, high-temperature heat pipe hot-blast stove II 6 is arranged above the high-temperature heat pipe hot-blast stove I 5, and heat pipe rows are arranged side by side between the high-temperature heat pipe hot-blast stove I 5 and the high-temperature heat pipe hot-blast stove II 6 7. The lower end of the heat pipe row 7 is placed in the high-temperature heat pipe hot-blast stove I 5, and its upper end is placed in the high-temperature heat pipe hot-blast stove II 6. The air inlet of the high-temperature heat pipe hot-blast stove II 6 is provided with a blower 8, and its air outlet passes through the air delivery pipe Connect the air inlet of the induced draft fan 9, the air outlet of the induced draft fan 9 is provided with a heat exchanger 10, the hot water supply pipe 102 of the heat exchanger coil 101 in the heat exchanger 10 is connected to the top side of the heat preservation water tank 11, and the heat exchange The cold water delivery pipe 12 of the device coil 101 is connected to the water storage tank;

The hot water supply pipe 102 is provided with a control valve I 13 and a circulation pump 14, and the cold water delivery pipe 12 is provided with a control valve II 15 and a water pump 16;

A water delivery pipe 17 is arranged on one side of the bottom of the heat preservation water tank 11, and a control valve III is respectively arranged on the water delivery pipe 17. 18 and booster pump 19, the top of the thermal water tank 11 communicates with the atmosphere.

The boiler 1, the steam pump 4, the high-temperature heat pipe hot-blast stove I5, the heat pipe row 7 placed in the high-temperature heat pipe hot-blast stove I5 at the lower end, and the steam delivery pipe 3 connecting them form a boiler steam waste heat recovery channel.

Blower 8, high-temperature heat pipe hot-blast stove II 6, the heat pipe row 7 placed in the high-temperature heat-pipe hot-blast stove II 6 at the upper end, induced draft fan 9, heat exchanger 10, and the air conveying pipe connecting it constitute the hot-blast air-inducing channel.

The heat exchanger coil 101 in the heat exchanger 10, the control valve I 13, the circulation pump 14, the heat preservation water tank 11, and the hot water supply pipe 102 connecting it are connected in sequence to form a hot water delivery channel.

The heat exchanger 10 is a cartridge heat exchanger.

When the utility model works, when the boiler 1 starts to work for a period of time, the control is turned on, the high-temperature heat pipe hot blast stove I 5, the high-temperature heat pipe hot blast stove II 6, the power supply of the heat exchange 10, and the steam pump 4, the blower 8, and the induced draft fan 9 are turned on in turn. , control valve I 13, circulation pump 14, control valve II 15 and water pump 16, the hot steam in the boiler 1 enters in the high-temperature heat pipe hot blast stove I 5 through the steam delivery pipe 3 under the effect of the steam pump 4, passes through the heat pipe row 7 The lower end absorbs the heat in the hot steam and transfers the heat to the upper end of the heat pipe row 7. The upper end of the heat pipe row 7 performs heat exchange with the gas introduced by the blower 8 connected to the high-temperature heat pipe hot blast stove II 6. 9. Introduce the hot gas into the heat exchanger 10, and then exchange heat with the cold water in the heat exchanger coil 101 through the heat exchanger 10, and transfer the hot water to the heat preservation water storage tank 11 under the action of the circulation pump 14, and turn on Control valve III 18 and booster pump 19 supply hot water to users.

The undescribed technical features of the utility model can be realized by or using the prior art, so they will not be repeated here. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by ordinary skilled persons within the essential scope of the present invention shall also belong to the present invention.

Claims (5)

1. A boiler steam waste heat utilization device in the production of corn starch, characterized in that: a steam vent hole (2) is opened in the center of the top of the boiler (1), and the steam vent hole (2) is connected to the steam delivery pipe (3), A steam pump (4) and a high-temperature heat pipe hot blast stove I (5) are respectively arranged on the steam delivery pipe (3), and a high temperature heat pipe hot blast stove II (6) is arranged above the high temperature heat pipe hot blast stove I (5), A heat pipe row (7) is arranged side by side between the high temperature heat pipe hot blast stove I (5) and the high temperature heat pipe hot blast stove II (6), and the lower end of the heat pipe row (7) is placed in the high temperature heat pipe hot blast stove I (5) Inside, its upper end is located in the high-temperature heat pipe hot blast stove II (6), the air inlet of the high-temperature heat pipe hot blast stove II (6) is provided with a blower (8), and its air outlet is connected to the induced draft fan (9 ), the air outlet of the induced draft fan (9) is provided with a heat exchanger (10), and the hot water supply pipe (102) of the heat exchanger coil (101) in the heat exchanger (10) ) is connected to the top side of the thermal insulation water tank (11), and the cold water delivery pipe (12) of the heat exchanger coil (101) is connected to the water storage tank; The hot water supply pipe (102) is provided with a control valve I (13) and a circulation pump (14), and the cold water delivery pipe (12) is provided with a control valve II (15) and a water pump (16); A water delivery pipe (17) is provided on the bottom side of the heat preservation water tank (11), and a control valve III (18) and a booster pump (19) are respectively arranged on the water delivery pipe (17). The top is connected to the atmosphere. 2. The boiler steam waste heat utilization device in corn starch production according to claim 1, characterized in that: the boiler (1), steam pump (4), high-temperature heat pipe hot blast stove I (5), the lower end is placed in the The heat pipe rows (7) in the high-temperature heat pipe hot blast stove I (5) and the steam delivery pipes (3) connecting them constitute boiler steam waste heat recovery channels. 3. The boiler steam waste heat utilization device in corn starch production according to claim 1, characterized in that: the blower (8), the high-temperature heat pipe hot blast stove II (6), the upper end is placed in the high temperature heat pipe hot blast stove II ( 6) The heat pipe row (7), the induced draft fan (9), the heat exchanger (10), and the air delivery pipes connecting them form a hot air induction channel. 4. The boiler steam waste heat utilization device in corn starch production according to claim 1, characterized in that: the heat exchanger coil (101) in the heat exchanger (10), the control valve I (13), and the circulation The pump (14) heat preservation water tank (11) and the hot water supply pipe (102) connecting it are connected in sequence to form a hot water delivery channel. 5. The boiler steam waste heat utilization device in corn starch production according to claim 1, characterized in that: the heat exchanger (10) is a drum heat exchanger.