CN216203664U

CN216203664U - Brazing furnace industrial waste heat recovery application device

Info

Publication number: CN216203664U
Application number: CN202122707813.2U
Authority: CN
Inventors: 居学文; 张小兵
Original assignee: Shanghai Dfun Air Conditional Equipment & Engineering Technology Co ltd
Current assignee: Shanghai Dfun Air Conditional Equipment & Engineering Technology Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-04-05
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a brazing furnace industrial waste heat recovery application device which comprises a plate heat exchanger and a cooling tower which are connected through a pipeline, wherein the water outlet end of the cooling tower is connected with a cooling side water pump through a first pipeline, the other end of the cooling side water pump is connected to a hot water tank, a load side water pump connected with the hot water tank through a pipeline is arranged on the side surface of the cooling side water pump, a first valve is arranged on the first pipeline, the first pipeline is connected to an outdoor buried pipe through a first branch pipe, and a sixth valve is arranged on the first branch pipe. The utility model has scientific and reasonable structural design and simple and convenient operation, can change industrial waste heat into valuable as much as possible, reduces the investment of cooling equipment and the waste of water resources, and uses the heat as a heat source of bathing hot water in a plant area and as a main heat source for heating in winter.

Description

Brazing furnace industrial waste heat recovery application device

Technical Field

The utility model relates to the technical field of waste heat recovery equipment, in particular to an industrial waste heat recovery application device of a brazing furnace.

Background

At present, the equipment is used for recovering the industrial waste heat of the brazing furnace in China, and a large amount of industrial waste heat exists in certain production processes in the industrial production link. For example, in a factory where I contact, a brazing furnace is required to be used for welding in a production line during the production of automobile parts. The finished product needs to be cooled before being taken down from the production line. This results in a large demand for cooling water, even a large waste of water resources, and increases the investment in cooling equipment, thus having certain limitations. Therefore, the device for recycling the industrial waste heat of the brazing furnace is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an industrial waste heat recovery application device of a brazing furnace, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a brazing furnace industrial waste heat recovery application device comprises a plate heat exchanger and a cooling tower which are connected through a pipeline, wherein the water outlet end of the cooling tower is connected with a cooling side water pump through a first pipeline, the other end of the cooling side water pump is connected onto a hot water tank, a load side water pump connected with the hot water tank through a pipeline is arranged on the side face of the cooling side water pump, a first valve is arranged on the first pipeline, the first pipeline is connected onto an outdoor buried pipe through a first branch pipe, a sixth valve is arranged on the first branch pipe, the water inlet end of the cooling tower is connected onto a plurality of hot water tanks through a second pipeline, a second valve is arranged on the second pipeline, the second pipeline is connected onto the outdoor buried pipe through a second branch pipe, a fifth valve is arranged on the second branch pipe, soft joints on the side face of the plate heat exchanger are correspondingly connected onto the first pipeline and the second pipeline through a third pipeline and a fourth pipeline respectively, the third pipeline is provided with a third valve, the fourth pipeline is provided with a fourth valve, one end of the load side water pump is connected with a water collector, and one end of the water collector is provided with a water separator.

Preferably, the hot water tanks are provided with four groups.

Preferably, the cooling side water pump and the load side water pump are provided with two sets.

Preferably, a thermometer, a pressure gauge, a drain valve and an automatic exhaust valve are sequentially arranged on the third pipeline and the fourth pipeline.

Preferably, the water separator is communicated with the hot water tank through a pipeline.

Preferably, the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all provided with filters.

Compared with the prior art, the utility model has the beneficial effects that: the industrial waste heat recovery and application device for the brazing furnace is simple and reasonable in structural design and high in practicability, industrial waste heat is turned into wealth as much as possible by arranging the plate type heat exchanger, the cooling tower, the hot water tank, the cooling side water pump, the load side water pump and the like, investment of cooling equipment is reduced, waste of water resources is reduced, the heat is used as a heat source of bathing hot water in a factory and is used as a main heat source of heating in winter, a brazing furnace waste heat storage water tank is arranged in the project, a submersible pump set is arranged in the water tank, the plate type heat exchanger is arranged in the system, the primary side of the plate type heat exchanger is from a heat source of the brazing water tank, the secondary side of the plate type heat exchanger enters the source side (summer)/water source heat pump set (winter), and the source side of the water source heat pump set is respectively from three sources: 1. winter-pond plate changes the secondary side; 2. winter/summer-ground source heat pump buried pipe for reducing predicted heat; 3. summer-cooling tower (except that the waste heat recovery host machine provides free domestic hot water while refrigerating in summer, if the hot water demand can not be met, the free domestic hot water can be completely supplemented by the brazing furnace, if the water temperature of a brazing furnace pool is still raised, the cooling tower matched with the brazing furnace is started to provide heat dissipation after reaching a certain set value (55 ℃), the project estimates the heat of the brazing furnace relatively accurately, the project is very important, the heat which can be provided by relatively precise calculation can be ensured, the heat can be respectively distributed to domestic hot water and heat for heating, and the heat absorption capacity demand and the heat dissipation capacity demand of the buried pipe can be reasonably calculated according to the heat, because the heat of the pool and the buried pipe are dynamic demands, the two heats are ensured to be fully complemented in use, even the heat which is prestored in the pool and the buried heat exchange system before the maintenance and shutdown of a brazing production line is considered, the heat dissipation capacity of the whole system in summer is firstly provided by the heat dissipation capacity of the buried pipe, if the energy cannot be dissipated, the cooling tower assists in dissipating heat, and the reasonable transfer among complementation, dynamics and energy is the theoretical advantage of the flexible system and is also the key for greatly saving the energy consumption in the plant area.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the present invention;

fig. 3 is a schematic view of the connection structure of the present invention.

In the figure: the system comprises a plate heat exchanger 1, a first valve 11, a second valve 12, a third valve 13, a fourth valve 14, a fifth valve 15, a sixth valve 16, a thermometer 17, a pressure gauge 18, a drain valve 19, an automatic exhaust valve 2, a soft joint 21, a cooling tower 22, a hot water tank 23, a cooling side water pump 24, a load side water pump 25, a water collector 26, a water separator 27, an outdoor buried pipe 28, a first pipeline 31, a first branch pipe 311, a second pipeline 32, a second branch pipe 321, a third pipeline 33 and a fourth pipeline 34.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a brazing furnace industrial waste heat recovery application device, include 1 and cooling tower 22 of plate heat exchanger through the pipe connection, cooling tower 22's play water end connects cooling side water pump 24 through first pipeline 31, the cooling side water pump 24 other end is connected on hot water tank 23, hot water tank 23 is provided with four groups altogether, cooling side water pump 24 side is provided with the load side water pump 25 that passes through the pipe connection with hot water tank 23, load side water pump 25 passes through the pipe connection on roof expansion tank, cooling side water pump 24 and load side water pump 25 all are provided with two sets ofly, the during operation is guaranteed that cooling tower 22 water tray is higher than water pump entry 500mm at least.

The first pipeline 31 is provided with a first valve 11, the first pipeline 31 is connected with the outdoor buried pipe 28 through a first branch pipe 311, the first branch pipe 311 is provided with a sixth valve 16, the water inlet end of the cooling tower 22 is connected with the hot water tanks 23 through a second pipeline 32, the second pipeline 32 is provided with a second valve 12, the second pipeline 32 is connected with the outdoor buried pipe 28 through a second branch pipe 321, the second branch pipe 321 is provided with a fifth valve 15, the soft joint 21 on the side surface of the plate heat exchanger 1 is correspondingly connected with the first pipeline 31 and the second pipeline 32 through a third pipeline 33 and a fourth pipeline 34 respectively, the third pipeline 33 is provided with a third valve 13, the fourth pipeline 34 is provided with a fourth valve 14, the third pipeline 33 and the fourth pipeline 34 are respectively and sequentially provided with a thermometer 17, a pressure gauge 18, a drain valve 19 and an automatic exhaust valve 2, and the temperature and pressure conditions of the corresponding pipelines can be monitored through the thermometer 17 and the pressure gauge 18, the automatic exhaust valve 2 and the drain valve 19 are respectively used for exhausting and draining, the first pipeline 31, the second pipeline 32, the third pipeline 33 and the fourth pipeline 34 are all provided with filters which can filter impurities in a water source so as to avoid pipeline blockage, one end of the load side water pump 25 is connected with the water collector 26, one end of the water collector 26 is provided with the water separator 27, the water collector 26 and the water separator 27 in the device can adopt common water separating and collecting equipment in the market, the water separator 27 is communicated on the hot water tank 23 through pipelines, the plate type heat exchanger 1, the cooling tower 22, the hot water tank 23, the cooling side water pump 24, the load side water pump 25 and other structures are arranged, industrial waste heat is changed into valuable as far as possible, the investment of the cooling equipment is reduced, the waste of water resources is reduced, the heat is used as a heat source of hot water in a plant area and is used as a main heat source of heating in winter, this project sets up brazing furnace waste heat accumulation pond, sets up the immersible pump package in the pond, sets up plate heat exchanger 1 in the system, and its primary side comes from the heat source in brazing the pond, and the secondary side gets into life hot water tank 23 during summer, comes from the source side of water source heat pump set during winter, and the source side of water source heat pump water set comes from three sources respectively: winter-pond plate changes the secondary side; winter/summer-ground source heat pump buried pipe for reducing predicted heat; summer-cooling tower 22, except that waste heat recovery host computer provides free domestic hot water when refrigerating in summer, can all be replenished by the brazing furnace if the hot water demand can not satisfy, if the brazing furnace pond temperature is still not rised, open the supporting cooling tower of brazing furnace and provide the heat dissipation after certain setting value is like 55 ℃, this project predicts the brazing furnace heat that is relatively accurate and is very important, can ensure the heat that can provide of relatively accurate calculation, distribute life hot water and heat for the heating respectively, and the heat absorption capacity demand and the heat-sinking capability demand of rationally calculating ground pipe in view of the above.

The working principle is as follows:

according to the industrial waste heat recovery application device for the brazing furnace, a cooling tower 22 is used in summer, at the moment, a first valve 11 and a second valve 12 are opened, a third valve 13 and a fourth valve 14 are closed, hot water enters the cooling tower 22 through a first pipeline 31 to be cooled and then flows out through a second pipeline 32, a waste heat recovery host machine during cooling in summer provides free domestic hot water while refrigerating, if the hot water requirement cannot be met, the hot water can be completely supplemented by the brazing furnace, if the water temperature of a brazing furnace water pool rises continuously, the cooling tower 22 matched with the brazing furnace is opened to provide heat dissipation after the water temperature reaches a set value of 55 ℃, the heat dissipation capacity of the whole system in summer is provided by the heat dissipation capacity of an outdoor buried pipe 28, if the water temperature cannot be met, the cooling tower 22 assists in heat dissipation, and therefore the purpose of rapid temperature reduction is achieved;

in winter, the plate heat exchanger 1 works, at the moment, the first valve 11 and the second valve 12 are closed, the third valve 13 and the fourth valve 14 are opened, cold water enters the plate heat exchanger 1 through the fourth pipeline 34 to be heated and then flows out through the third pipeline 33, heat exhaust of the device process can completely and directly meet the heating requirement of the system, but due to possible process shutdown, an office area still needs to be heated at the moment, other heat sources are needed to supplement heat at the moment, the supplement heat can be provided through the outdoor buried pipe 28 of the ground source system or other auxiliary heat sources, when a ground source is utilized, the fifth valve 15 and the sixth valve 16 are opened, the third valve 13 and the fourth valve 14 are adjusted, the balance between the plate heat exchanger 1 and the outdoor buried pipe 28 is adjusted, and water flow in the pipelines can be heated through the ground source heat;

the device can realize the reasonable transfer among complementation, dynamic and energy sources by matching the mechanisms, thereby playing the effect of greatly saving the energy consumption in a plant area.

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

Claims

1. The utility model provides a brazing furnace industrial waste heat recovery application apparatus, includes through pipe connection's plate heat exchanger (1) and cooling tower (22), its characterized in that: the water outlet end of the cooling tower (22) is connected with a cooling side water pump (24) through a first pipeline (31), the other end of the cooling side water pump (24) is connected onto a hot water tank (23), a load side water pump (25) connected with the hot water tank (23) through a pipeline is arranged on the side face of the cooling side water pump (24), a first valve (11) is arranged on the first pipeline (31), the first pipeline (31) is connected onto an outdoor buried pipe (28) through a first branch pipe (311), a sixth valve (16) is arranged on the first branch pipe (311), the water inlet end of the cooling tower (22) is connected onto a plurality of hot water tanks (23) through a second pipeline (32), a second valve (12) is arranged on the second pipeline (32), the second pipeline (32) is connected onto the outdoor buried pipe (28) through a second branch pipe (321), and a fifth valve (15) is arranged on the second branch pipe (321), the plate heat exchanger is characterized in that a soft joint (21) on the side face of the plate heat exchanger (1) is correspondingly connected to a first pipeline (31) and a second pipeline (32) through a third pipeline (33) and a fourth pipeline (34) respectively, a third valve (13) is arranged on the third pipeline (33), a fourth valve (14) is arranged on the fourth pipeline (34), one end of a load side water pump (25) is connected with a water collector (26), and one end of the water collector (26) is provided with a water distributor (27).

2. The device for recycling industrial waste heat of the brazing furnace as claimed in claim 1, wherein: the hot water tanks (23) are provided with four groups.

3. The device for recycling industrial waste heat of the brazing furnace as claimed in claim 1, wherein: and the cooling side water pump (24) and the load side water pump (25) are respectively provided with two groups.

4. The device for recycling industrial waste heat of the brazing furnace as claimed in claim 1, wherein: and the third pipeline (33) and the fourth pipeline (34) are sequentially provided with a thermometer (17), a pressure gauge (18), a drain valve (19) and an automatic exhaust valve (2).

5. The device for recycling industrial waste heat of the brazing furnace as claimed in claim 1, wherein: the water separator (27) is communicated with the hot water tank (23) through a pipeline.

6. The device for recycling industrial waste heat of the brazing furnace as claimed in claim 1, wherein: the first pipeline (31), the second pipeline (32), the third pipeline (33) and the fourth pipeline (34) are all provided with filters.