Heat energy circulation system for wood processing production line

Abstract

The utility model relates to a heat energy circulating system for a wood processing production line, which comprises a water collector (1), a first steam-water heat exchanger (2), a second steam-water heat exchanger (3) and a water distributor (4), the main pipe filter (5) is communicated with a water inlet of the first steam-water heat exchanger (2) and a water inlet of the second steam-water heat exchanger (3) through a heat supply network circulating pump (6), and a steam outlet of the boiler (21) and a hot gas outlet of the low-pressure superheater (22) are communicated with a heating source inlet of the first steam-water heat exchanger (2) and a heating source inlet of the second steam-water heat exchanger (3) through pumps. The utility model particularly relates to a heat energy circulation system for a wood processing production line. The waste water recycling system has the advantages that waste energy is utilized through the heat energy circulating system, waste water is heated and recycled through the waste energy, and heat equipment and the like in a plant area can be recycled.

Description

Technical Field

[0001] The utility model relates to the field of wood production lines, and particularly relates to a heat energy circulation system for a wood processing production line. Background Art

[0002] At present, with the increasing requirements for modern environmental protection, the application of natural gas combustion for power generation is becoming more and more widespread.

[0003] During the production process of the wood processing industry, waste heat is generated. This waste heat is generally an ignored energy source and is directly discharged into the atmosphere. This method is not conducive to the reuse of energy. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat energy circulation system for a wood processing production line aiming at the above-mentioned deficiencies at present.

[0005] The utility model includes a water collector, a first steam-water heat exchanger, a second steam-water heat exchanger and a water distributor.

[0006] The water outlet of the water collector is connected to the inlet of the main pipe filter through a water collection filter.

[0007] The main pipe filter is connected to the water inlets of the first steam-water heat exchanger and the second steam-water heat exchanger through a heat network circulation pump.

[0008] The steam outlet of the boiler and the hot gas outlet of the low-pressure superheater are connected to the heating source inlets of the first steam-water heat exchanger and the second steam-water heat exchanger through a pump.

[0009] The heating source outlets of the first steam-water heat exchanger and the second steam-water heat exchanger are connected to the inlets of the condenser and the first air supplement tank.

[0010] The hot water outlets of the first steam-water heat exchanger and the second steam-water heat exchanger are connected to the inlet of the water distributor through a water distribution filter.

[0011] One of the water outlets of the water distributor is connected to one of the water inlets of the water collector and a hot water supply device.

[0012] Furthermore, a make-up water constant pressure device is connected to the inlet of the main pipe filter.

[0013] Furthermore, the steam outlet of the boiler and the hot gas outlet of the low-pressure superheater are connected to a second air supplement tank.

[0014] Furthermore, temperature sensors are arranged at the steam outlet of the boiler and the hot gas outlet of the low-pressure superheater.

[0015] Furthermore, a temperature sensor is arranged at the water inlet of the water distributor.

[0016] Furthermore, the water replenishing device is a capsule-type automatic constant pressure water replenishing device.

[0017] Furthermore, an outdoor temperature sensor is provided on the pipelines of the steam outlet of the boiler and the hot gas outlet of the low-pressure superheater for detecting the pipeline temperature.

[0018] Furthermore, drain valves are provided at the hot water outlets of the first steam-water heat exchanger and the second steam-water heat exchanger, and the outlets of the drain valves are communicated with the atmosphere.

[0019] The advantages of the present utility model are as follows: the surplus energy is utilized through the heat energy circulation system, the waste water is heated and reused by using the surplus energy, and the heat-consuming equipment in the factory area can be recycled. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the present utility model. Detailed Embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship in which the product of this invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, in the description of the present invention, if terms such as "first", "second", etc. are used only for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and defined, if the terms "set" and "connect" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0026] As shown in the figure, the utility model includes a water collector 1, a first steam-water heat exchanger 2, a second steam-water heat exchanger 3, and a water distributor 4.

[0027] The water outlet of the water collector 1 is connected to the inlet of the main pipe filter 5 through a water collection filter 11.

[0028] The main pipe filter 5 is connected to the water inlets of the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 through a heat network circulating pump 6.

[0029] The steam outlet of the boiler 21 and the hot gas outlet of the low-pressure superheater 22 are connected to the heating source inlets of the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 through a pump.

[0030] The heating source outlets of the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 are connected to the inlets of the condenser 31 and the first air supplement tank 32.

[0031] The hot water outlets of the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 are connected to the inlet of the water distributor 4 through a water distribution filter.

[0032] One of the water outlets of the water distributor 4 is connected to one of the water inlets of the water collector 1 and a hot water supply device.

[0033] Furthermore, the make-up water constant pressure device is connected to the inlet of the main pipe filter 5.

[0034] Furthermore, the steam outlet of the boiler 21 and the hot gas outlet of the low-pressure superheater 22 are connected to the second air supplement tank 41. The second air supplement tank 41 mainly serves to supplement the air supplement tank with excess hot gas for other uses.

[0035] Furthermore, temperature sensors are provided at the steam outlet of the boiler 21 and the hot gas outlet of the low-pressure superheater 22. It is used to detect the temperature after the steam and hot gas are mixed.

[0036] Furthermore, a temperature sensor is provided at the water inlet of the water distributor 4.

[0037] Furthermore, the make-up water device 10 is a bladder-type automatic constant pressure make-up water device 10. Through this device, the water pressure in the pipeline can be kept constant, ensuring the optimal state of recycling.

[0038] Further, an outdoor temperature sensor is provided on the pipelines of the steam outlet of the boiler 21 and the hot gas outlet of the low-pressure superheater 22 for detecting the pipeline temperature.

[0039] Further, drain valves are provided at the hot water outlets of the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3, and the outlets of the drain valves are communicated with the atmosphere.

[0040] Working mode:

[0041] Water inlet mode of the steam-water heat exchanger:

[0042] The cold water after being used by the heat-consuming equipment in the steam turbine building, the electrical building, the laboratory building, the comprehensive building in the plant area, etc. enters the water collector 1. The water collector 1 discharges impurities through the water collection filter 11. The clean water and the water in the water replenishing device 10 (when the water pressure in the circulating pipeline is lower than the preset pressure, it can be supplemented through the water replenishing device 10) are pumped into the main pipe filter 5 to filter impurities, and then the filtered water is pumped into the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 through the heat network circulating pump 6.

[0043] Heat source inlet mode of the steam-water heat exchanger:

[0044] The steam outlet of the boiler 21 and the hot gas outlet of the low-pressure superheater 22 are pumped into the heat source inlets of the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 through a pump. The heated gas is discharged into the first air supplement box 32 for reuse. There is also a part of the water-containing gas that enters the condenser 31 to be condensed into water and then reused.

[0045] Hot water utilization mode:

[0046] The hot water after being exchanged in the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 is pumped into the water distributor 4 through a pump and a water distribution filter (filtering impurities), and then supplies heat to the heat-consuming equipment in the steam turbine building, the electrical building, the laboratory building, the comprehensive building in the plant area, etc.

[0047] The hot gas after being exchanged in the first steam-water heat exchanger 2 and the second steam-water heat exchanger 3 is discharged to the atmosphere through a drain valve (to prevent excessive pressure in the pipeline);

[0048] Circulation mode:

[0049] One of the water outlets of the water distributor 4 is connected to one of the water inlets of the water collector 1 and the hot water supply equipment. The hot water stored in the water distributor 4 needs to be pumped into the water collector 1 for recycling due to being unused for too long.

[0050] The other water outlets of the water distributor 4 are connected to the water inlets of the heat-consuming equipment in the steam turbine building, the electrical building, the laboratory building, the comprehensive building in the plant area, etc.;

[0051] Other water inlets of the water collector 1 are connected to the drainage outlets of the heat-using equipment in the turbine building, the electrical building, the laboratory building, and the comprehensive factory building.

Claims

1. A heat energy circulation system for a wood processing production line, characterized by It includes a water collector (1), a first steam-water heat exchanger (2), a second steam-water heat exchanger (3) and a water separator (4). The water outlet of the water collector (1) is connected to the inlet of the main filter (5) through the water collection filter (11). The main filter (5) is connected to the water inlets of the first steam-water heat exchanger (2) and the second steam-water heat exchanger (3) through the heat network circulation pump (6). The steam outlet of the boiler (21) and the hot gas outlet of the low-pressure superheater (22) are connected to the heating source inlets of the first steam-water heat exchanger (2) and the second steam-water heat exchanger (3) through a pump. The heat source outlets of the first steam-water heat exchanger (2) and the second steam-water heat exchanger (3) are connected to the inlets of the condenser (31) and the first air supply tank (32). The hot water outlets of the first steam-water heat exchanger (2) and the second steam-water heat exchanger (3) are connected to the inlet of the water separator (4) through the water separator filter. One of the water outlets of the water distributor (4) is in communication with one of the water inlets of the water collector (1) and the hot water supply equipment.

2. The heat energy circulation system for a wood processing production line according to claim 1, characterized in that: The water replenishment constant pressure device is communicated with the inlet of the main filter (5).

3. The heat energy circulation system for a wood processing production line according to claim 1, characterized in that: The steam outlet of the boiler (21) and the hot gas outlet of the low-pressure superheater (22) are communicated with the second air supply tank (41).

4. The heat energy circulation system for a wood processing production line according to claim 1, characterized in that: The steam outlet of the boiler (21) and the hot gas outlet of the low-pressure superheater (22) are provided with temperature sensors.

5. The heat energy circulation system for a wood processing production line according to claim 1, characterized in that: A temperature sensor is provided at the water inlet of the water distributor (4).

6. The heat energy circulation system for a wood processing production line according to claim 1, characterized in that: The water replenishing device (10) is a bladder-type automatic constant-pressure water replenishing device (10).

7. The heat energy circulation system for a wood processing production line according to claim 1, characterized in that: Outdoor temperature sensors are provided on the pipes of the steam outlet of the boiler (21) and the hot gas outlet of the low-pressure superheater (22) for detecting the pipe temperatures.

8. The heat energy circulation system for a wood processing production line according to claim 1, characterized in that: Drain valves are provided on the hot water outlets of the first steam-water heat exchanger (2) and the second steam-water heat exchanger (3), and the outlets of the drain valves are connected to the atmosphere.

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