Biomass power plant heat supply water supplementing system

Abstract

The utility model discloses a kind of biomass power plant heat supply water replenishing system, including biomass boiler, the biomass boiler is connected with water replenishing device, one end of the water replenishing device is water replenishing end, the other side away from the water replenishing end is connected with biomass boiler, circulation backwater pipeline is set on the water replenishing device, the circulation backwater pipeline includes water inlet pipeline and backwater pipeline, steam pipeline on the biomass boiler is connected with the steam inlet of heat exchanger, the steam outlet of heat exchanger is connected condensate tank by pipeline;Water replenishing device is connected by pipeline with the water inlet of heat exchanger, the water outlet of heat exchanger is connected with heat preservation water tank by pipeline, the heat preservation water tank is connected with user heat supply pipeline by pipeline, the user heat supply pipeline is connected with heat supply terminal by pipeline, the heat supply terminal includes water heater, radiator or floor heating, the heat exchanger is plate heat exchanger.

Description

Technical Field

[0001] This utility model belongs to the technical field of biomass power plants, specifically relating to a heating and water supply system for biomass power plants. Background Technology

[0002] Large biomass power plants are equipped with a plant area heating water supply system. Since the heating area of ​​a biomass power plant is relatively small, the water supply system is mainly for the purpose of facilitating water access.

[0003] In order to expand the heating area of ​​biomass power plants, the water supply system needs to be optimized. In the existing technology, in order to avoid the impact of the water source on the system, greywater is used as the water supply. However, the condensate generated in the system is rarely used. When the condensate of the system is recycled, additional water storage equipment is required, which not only increases the project cost, but also increases the land area.

[0004] In view of the above factors, this utility model provides a biomass power plant heating water supply system. In use, the condensate from the heat exchanger is used to replenish the water supply device, avoiding the increase in cost and floor space required by setting up a condensate recovery device. The heat exchanger is provided with a condensate drain outlet, which is connected to the water supply device through a pipe. Utility Model Content

[0005] The purpose of this invention is to provide a heating and water supply system for biomass power plants to solve the problems mentioned in the background art.

[0006] The purpose of this utility model is achieved through the following technical solution: a biomass power plant heating water supply system, including a biomass boiler, the biomass boiler and a water supply device, one end of the water supply device is a water supply end, and the other side away from the water supply end is connected to the biomass boiler, and a circulating return water pipeline is provided on the water supply device, the circulating return water pipeline including an inlet water pipeline and a return water pipeline.

[0007] The steam pipes on the biomass boiler are connected to the steam inlet of the heat exchanger, and the steam outlet of the heat exchanger is connected to the condensate tank through a pipe; the water supply device is connected to the water inlet of the heat exchanger through a pipe.

[0008] The outlet of the heat exchanger is connected to an insulated water tank via a pipe. The insulated water tank is connected to the user's heating pipeline via a pipe. The user's heating pipeline is connected to the heating terminal via a pipe.

[0009] Furthermore, the heating terminal includes a water heater, radiator, or underfloor heating, and the heat exchanger is a plate heat exchanger.

[0010] Furthermore, the steam pipeline is also equipped with a connecting pipe that connects to the water supply device. The connecting pipe on the steam pipeline is equipped with a water storage chamber every 3-5 meters, and the water storage chamber is connected to the water supply device through a pipe.

[0011] Furthermore, the water storage chamber is a three-way structure installed on the connecting pipe, and a steam trap valve is installed on the pipe where the water storage chamber is located.

[0012] Furthermore, the heat exchanger is provided with a condensate drain outlet, which is connected to the water supply device via a pipe.

[0013] Furthermore, the water replenishment device includes an inlet pipe II, which is connected to a water storage tank. The outlet of the water storage tank is connected to an outlet pipe, and two sets of circulating pumps are arranged in parallel on the outlet pipe.

[0014] The water outlet pipe is connected to the biomass boiler.

[0015] Furthermore, a Y-type filter is installed on the pipeline where the two sets of circulating pumps are located, and a differential pressure gauge is installed on both sides of the Y-type filter. The differential pressure gauge is a pressure gauge.

[0016] Furthermore, a pre-processor is provided on the water inlet pipe II of the water replenishment device, the pre-processor including a sand filter and an activated carbon filter connected in series.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model features a circulating water pipeline, including an inlet pipeline and a return pipeline, through which water is supplied / recycled for reuse.

[0019] To facilitate the inspection of whether the pipeline is blocked by raw water particles using differential pressure gauges during use, this utility model provides Y-type filters on the pipelines where the two sets of circulating pumps are located, with differential pressure gauges installed on both sides of the Y-type filters.

[0020] In use, this utility model utilizes the hydrophobic residue of the heat exchanger to replenish the water supply device, avoiding the increased cost and floor space required by setting up a hydrophobic residue recovery device. The heat exchanger is equipped with a condensate drain outlet, which is connected to the water supply device via a pipe.

[0021] In use, this invention utilizes the condensate from the steam pipeline to replenish the water supply device for recycling.

[0022] The present invention provides a water storage chamber with a three-way structure on the steam pipeline to reduce the occurrence of water hammer effect in the steam pipeline. The water storage chamber is a three-way structure set on the connecting pipe, and a steam trap valve is set on the pipe where the water storage chamber is located. The water storage chamber is connected to the water supply pipeline through the pipeline and re-enters the water tank for recycling. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall connection of this utility model;

[0024] Figure 2 This is a partially enlarged schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the Y-type filter on the circulating pump of this utility model. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] like Figure 1-3 As shown, a biomass power plant heating water supply system includes a biomass boiler 1, a water supply device 2, one end of the water supply device 2 is a water supply end 3, and the other side away from the water supply end 3 is connected to the biomass boiler 1. A circulating return water pipeline 4 is provided on the water supply device 2, and the circulating return water pipeline 4 includes an inlet water pipeline 5 and a return water pipeline 6.

[0030] The water supply end 3 uses filtered greywater or natural water to enter the water tank for use.

[0031] The steam pipe 7 on the biomass boiler 1 is connected to the steam inlet of the heat exchanger 8, the steam outlet of the heat exchanger 8 is connected to the condensate tank 9 through a pipe, and the water supply device 2 is connected to the water inlet of the heat exchanger 8 through a pipe.

[0032] The outlet of the heat exchanger 8 is connected to the insulated water tank 10 via a pipe. The insulated water tank 10 is connected to the user heating pipeline 11 via a pipe. The user heating pipeline 11 is connected to the heating terminal via a pipe.

[0033] The heating terminal includes a water heater, radiator or underfloor heating, and the heat exchanger 8 is a plate heat exchanger.

[0034] To facilitate the drainage of water into the makeup water for recycling during use, a water storage chamber is set on the steam pipeline 7. A connecting pipe 12 is also set on the steam pipeline 7 to connect with the makeup water device 2. A water storage chamber 13 is set on the connecting pipe 12 on the steam pipeline 7 every 3-5 meters. The water storage chamber 13 is connected to the makeup water device 2 through a pipe.

[0035] In order to reduce the water hammer effect in the steam pipeline by setting a three-way water storage chamber 13 during use, the water storage chamber 13 is a three-way structure set on the connecting pipe 12, and a steam trap valve 14 is set on the pipe where the water storage chamber 13 is located.

[0036] In use, the condensate from the heat exchanger 8 is used to replenish the water supply device, avoiding the increase in cost and floor space required by setting up a condensate recovery device. The heat exchanger 8 is equipped with a condensate drain outlet, which is connected to the water supply device 2 via a pipe.

[0037] In operation, the biomass boiler 1 is replenished with water by setting up a water replenishment device 2. The water replenishment device 2 includes an inlet pipe II15, which is connected to a water storage tank 16. The outlet of the water storage tank 16 is connected to an outlet pipe 17, and two sets of circulating pumps 18 are arranged in parallel on the outlet pipe 17.

[0038] The water outlet pipe 17 is connected to the biomass boiler 1.

[0039] To facilitate checking for raw water particle blockage in the pipeline using differential pressure gauges during operation, Y-type filters 19 are installed on the pipelines where the two sets of circulating pumps 18 are located. Differential pressure gauges are installed on both sides of the Y-type filters 19. The differential pressure gauges are pressure gauges.

[0040] In order to facilitate the filtration of raw water by a pre-processor during use and to remove scale in the raw water, a pre-processor is provided on the water inlet pipe II15 of the water replenishment device 2. The pre-processor includes a sand filter 20 and an activated carbon filter 21 connected in series.

[0041] In operation, the water supply device delivers raw water to the biomass boiler. The steam pipes on the biomass boiler are connected to the heat exchanger. The water supply device delivers raw water to the heat exchanger through pipes for heat exchange with steam. After the water supply device has undergone heat exchange, the return water pipe enters the heating terminal through the user's heating pipe. The return water pipe then sends the return water from the heating terminal back to the water supply pipe for circulation.

[0042] A T-junction water storage chamber is installed on the steam pipeline to reduce the water hammer effect in the steam pipeline. The water storage chamber is a T-junction installed on the connecting pipe. A steam trap valve is installed on the pipe where the water storage chamber is located. The water storage chamber is connected to the water supply pipeline through the pipeline and re-enters the water tank for recycling.

[0043] The condensate return port in the heat exchanger is connected to the water supply line through a pipeline for recycling.

[0044] The steam outlet of the heat exchanger is connected to a condensate tank via a pipe to serve as a buffer tank. The condensate tank collects some of the condensate formed in the pipeline, and the cooled gas is then introduced into the steam pipeline for remixing through the condensate tank.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A biomass power plant heating and water supply system, comprising a biomass boiler (1), characterized in that: The biomass boiler (1) and the water supply device (2) are connected. One end of the water supply device (2) is the water supply end (3), and the other side away from the water supply end (3) is connected to the biomass boiler (1). A circulating return water pipeline (4) is provided on the water supply device (2). The circulating return water pipeline (4) includes an inlet pipeline I (5) and a return water pipeline (6). The steam pipe (7) on the biomass boiler (1) is connected to the steam inlet of the heat exchanger (8), the steam outlet of the heat exchanger (8) is connected to the condensate tank (9) through a pipe, and the water supply device (2) is connected to the water inlet of the heat exchanger (8) through a pipe. The outlet of the heat exchanger (8) is connected to the insulated water tank (10) via a pipe. The insulated water tank (10) is connected to the user heating pipeline (11) via a pipe. The user heating pipeline (11) is connected to the heating terminal via a pipeline.

2. The biomass power plant heating and water supply system according to claim 1, characterized in that: The heating terminal includes a water heater, a radiator or a floor heating system, and the heat exchanger (8) is a plate heat exchanger.

3. The biomass power plant heating and water supply system according to claim 2, characterized in that: The steam pipeline (7) is also provided with a connecting pipe (12) connected to the water replenishment device (2). The connecting pipe (12) on the steam pipeline (7) is provided with a water storage chamber (13) every 3-5 meters. The water storage chamber (13) is connected to the water replenishment device (2) through a pipe.

4. The biomass power plant heating and water supply system according to claim 3, characterized in that: The water storage chamber (13) is a three-way structure installed on the connecting pipe (12), and a steam trap valve (14) is installed on the pipe where the water storage chamber (13) is located.

5. The biomass power plant heating and water supply system according to claim 4, characterized in that: The heat exchanger (8) is provided with a condensate drain outlet, which is connected to the water supply device (2) via a pipe.

6. The biomass power plant heating and water supply system according to claim 5, characterized in that: The water replenishment device (2) includes an inlet pipe II (15), which is connected to a water storage tank (16). The outlet of the water storage tank (16) is connected to an outlet pipe (17), and two sets of circulating pumps (18) are arranged in parallel on the outlet pipe (17). The water outlet pipe (17) is connected to the biomass boiler (1).

7. The biomass power plant heating and water supply system according to claim 6, characterized in that: Y-type filters (19) are installed on the pipelines where the two sets of circulating pumps (18) are located. Differential pressure gauges are installed on both sides of the Y-type filters (19). The differential pressure gauges are pressure gauges.

8. The biomass power plant heating and water supply system according to claim 7, characterized in that: The water supply device (2) is equipped with a pre-processor on the water inlet pipe II (15), which includes a sand filter (20) and an activated carbon filter (21) connected in series.

Images