Boiler water treatment wastewater reuse device

Abstract

The present application discloses a boiler water treatment wastewater reuse device, comprising: a raw water tank, a water treatment system, a cooling water return pool, a second-class water pool, a steam turbine generator set cooling circulation chamber, a sugarcane press motor cooling circulation chamber, a first circulation pump, a second circulation pump, and a soft water tank; the raw water tank outlet is connected to the water inlet pipeline of the water treatment system; the water treatment system outlet is connected to the soft water tank pipeline; the water treatment system comprises: a reverse osmosis filter; the sewage outlet of the reverse osmosis filter is connected to the cooling water return pool pipeline; the cooling water return pool and the second-class water pool pipeline are connected; the second-class water pool outlet is respectively connected to the steam turbine generator set cooling circulation chamber and the sugarcane press motor cooling circulation chamber pipeline. The wastewater generated in the process of treating water by the reverse osmosis system is connected to the cooling water return pool and then pumped to the second-class water pool for cooling the steam turbine generator set and the press motor, which can greatly reduce the amount of second-class water raw water replenishment and achieve water-saving effect.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater recycling, and in particular to a boiler water treatment wastewater recycling device. Background Art

[0002] The reverse osmosis system, also known as reverse osmosis, is a membrane separation device that uses pressure difference as a driving force to separate the solvent from the solution. After applying pressure to the liquid on one side of the membrane, when the pressure exceeds its osmotic pressure, the solvent will reversely permeate in the opposite direction of natural osmosis, thereby obtaining a filtered solvent, i.e., permeate, on the low-pressure side of the membrane; and a concentrated solution, i.e., concentrate, on the high-pressure side. If seawater is treated by reverse osmosis, fresh water is obtained on the low-pressure side of the membrane, and brine is obtained on the high-pressure side. For example, the two-stage reverse osmosis equipment disclosed in CN202221873589.2 can be used in water treatment. The device is set up in a reuse water tank for standby.

[0003] In the sugar production process, the metal ions (calcium, magnesium, iron) in the raw water are filtered out through the reverse osmosis system to reduce the hardness of the water entering the boiler. The wastewater produced after filtration has a high hardness and cannot be directly used as soft water in the boiler. It also does not meet the requirements of sugar production in other production links. However, this type of wastewater is relatively clear and contains less solid impurities. Direct discharge will cause a waste of water resources.

[0004] In the existing sugar factory production process, during the water treatment process, the wastewater discharged from the filter is directly discharged to the sewage collection pool, and then pumped to the terminal regulating pool for treatment. Because the discharged water quality is relatively clear and clean, it causes a waste of water resources after being discharged to the sewage collection pool. It is impossible to achieve effective recycling of the solvent obtained from the osmotic filtration.

[0005] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in the field. Utility Model Content

[0006] In response to the above-mentioned technical problems, the present application provides a boiler water treatment wastewater reuse device, which can realize the effective reuse of wastewater generated by reverse osmosis filtration. After reuse, it can achieve effective cooling of steam turbines and sugarcane crusher motors, and realize heat recovery while reusing water resources for subsequent use.

[0007] The present application provides a boiler water treatment wastewater reuse device, comprising: a raw water tank, a water treatment system, a cooling water return pool, a second-class water pool, a turbine generator set cooling circulation chamber, a sugarcane press motor cooling circulation chamber, a first circulation pump, a second circulation pump, and a soft water tank;

[0008] The water outlet of the raw water tank and the water inlet of the water treatment system are connected through pipelines; the water outlet of the water treatment system and the soft water tank are connected through pipelines;

[0009] The water treatment system includes: a reverse osmosis filter; the sewage outlet of the reverse osmosis filter is connected to the cooling water return pool pipeline; the cooling water return pool and the second-class water pool pipeline are connected; the water outlet of the second-class water pool is respectively connected to the steam turbine generator set cooling circulation cavity and the sugarcane squeezer motor cooling circulation cavity pipeline;

[0010] The first circulation pump is arranged on a pipeline connecting the water outlet of the second-class water pool and the water inlet of the cooling circulation chamber of the motor of the sugarcane press;

[0011] The second circulation pump is arranged on a pipeline connecting the water outlet of the second-class water tank and the water inlet of the cooling circulation chamber of the steam turbine generator set;

[0012] The water outlet of the cooling circulation chamber of the steam turbine generator set and the water outlet of the cooling circulation chamber of the sugarcane press motor are respectively connected to the second type of water tank pipelines.

[0013] Preferably, it comprises: a cooling tower; a water inlet of the cooling tower is connected to a water outlet pipeline of the second type of water pool; a water outlet of the cooling tower is connected to a water inlet pipeline of the second type of water pool.

[0014] 2 includes: a cooling pump; the cooling pump is arranged on the pipeline between the water inlet of the cooling tower and the water outlet of the second-class water tank.

[0015] Preferably, the water treatment system includes: a multi-media filter, an activated carbon filter; the multi-media filter is connected to the raw water tank pipeline; the multi-media filter and the activated carbon filter are connected to each other through the pipeline; the activated carbon filter and the reverse osmosis filter are connected through the pipeline.

[0016] Preferably, the raw water valve and the raw water pump are arranged at intervals on the pipeline connecting the multi-media filter and the raw water tank.

[0017] Preferably, the soft water pump is arranged on a pipeline connecting the soft water tank and the water inlet of the boiler system.

[0018] Preferably, the drain valve and the drain pump are arranged on the cooling water return tank and the drain outlet of the reverse osmosis filter.

[0019] The beneficial effects of this application include:

[0020] 1) The boiler water treatment wastewater recycling device provided in this application connects the reverse osmosis system drain outlet with the cooling water return pool pipeline, connects the cooling water return pool with the second-class water pool pipeline, and sets a delivery pump on the connecting pipeline to recycle the wastewater generated by reverse osmosis to the cooling water return pool for standby, saving water resources and utilizing the low temperature characteristics of wastewater to achieve cooling and save energy. The cooled water is connected to the cooling tower pipeline to maintain the water temperature to meet the cooling requirements.

[0021] 2) The boiler water treatment wastewater reuse device provided in this application has the ion content in the treated water meeting the requirements and is connected to the boiler soft water tank pipeline to realize the storage and use of the treated water.

[0022] 3) The boiler water treatment wastewater reuse device provided in this application connects the wastewater generated during the water treatment process of the reverse osmosis system to the cooling water return pool and then pumps it to the Class II water pool for cooling the steam turbine generator set and the press motor, which can greatly reduce the amount of Class II water raw water replenishment and achieve water-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a boiler water treatment wastewater reuse device in at least one embodiment provided in the present application;

[0024] Legend:

[0025] Raw water tank 1, raw water valve 12, raw water pump 11, multi-media filter 2, multi-media valve 21, multi-media pump 22, activated carbon filter 3, activated carbon valve 31, booster pump 32, reverse osmosis filter 4, reverse osmosis valve 41, reverse osmosis pump 42, soft water tank 5, soft water pump 53, sewage valve 51, sewage pump 52, cooling water return pool 6, recycled water valve 61, recycled water pump 62, second type water pool 111, steam turbine generator cooling circulation chamber 112, sugarcane squeezer motor cooling circulation chamber 113, first circulation pump 115, second circulation pump 114, cooling tower 121, cooling pump 122, temperature sensor 125. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] 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 invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0028] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in the field, and can be implemented in a variety of common knowledge settings.

[0029] See also Figure 1 The boiler water treatment wastewater reuse device provided in the present application includes: a raw water tank 1, a raw water valve 12, a raw water pump 11, a multi-media filter 2, a multi-media valve 21, a multi-media pump 22, an activated carbon filter 3, an activated carbon valve 31, a pressure pump 32, a reverse osmosis filter 4, a reverse osmosis valve 41, a reverse osmosis pump 42, a soft water tank 5, a soft water pump 53, a drain valve 51, a drain pump 52, a cooling water return pool 6, a reuse water valve 61, a reuse water pump 62, a second type of water pool 111, a steam turbine generator cooling circulation chamber 112, a sugarcane squeezer motor cooling circulation chamber 113, a first circulation pump 115, a second circulation pump 114, a cooling tower 121, and a cooling pump 122.

[0030] The raw water tank 1 is used to store the raw water to be processed. The raw water tank 1 is connected to the multi-media filter 2, the reverse osmosis filter 4, and the activated carbon filter 3 in sequence, so that the raw water is filtered and treated by the multi-media filter 2, the reverse osmosis filter 4, and the activated carbon filter 3 to obtain softened water. The reverse osmosis filter 4 is connected to the soft water tank 5 by pipeline, and the soft water tank 5 is passed into the boiler used for sugar production as inlet water. The sewage outlet of the reverse osmosis filter 4 is connected to the cooling water return pool 6 by pipeline. The cooling water return pool 6 is connected to the second-class water pool 111 by pipeline. The water in the second-class water pool 111 is respectively connected to the water inlet pipelines of the steam turbine generator set cooling circulation chamber 112 and the sugarcane squeezer motor cooling circulation chamber 113, and the water outlets of the steam turbine generator set cooling circulation chamber 112 and the sugarcane squeezer motor cooling circulation chamber 113 are respectively connected to the second-class water pool 111 pipelines, so as to realize the circulating cooling of the steam turbine generator set and the sugarcane squeezer motor.

[0031] The second water pool 111 is also connected to the cooling tower 121 pipeline to maintain the water temperature of the second water pool 111 to meet the cooling requirements and continue to cool down as needed.

[0032] The device can realize the effective recycling of wastewater resources generated by the reverse osmosis filter 4, and at the same time can obtain circulating water that meets the cooling needs to cool the steam turbine generator set and the sugarcane crusher motor.

[0033] In a specific embodiment, it includes: a temperature sensor 125 and a display; the temperature sensor 125 is arranged in the second type water pool 111; the temperature sensor 125 is electrically connected to the display; the display is arranged outside the second type water pool 111, so as to display the water temperature in the second type water pool 111, so as to facilitate the operator to start the cooling pump 122 on the pipeline connected to the cooling tower 121 according to the water temperature, and cool the water in the second type water pool 111 as needed.

[0034] In a specific embodiment, the invention comprises: a raw water valve 12 and a raw water pump 11; the raw water valve 12 and the raw water pump 11 are arranged at intervals on the pipeline connecting the water outlet of the raw water tank 1 and the water inlet of the multi-media filter 2. By arranging the raw water valve 12 and the raw water pump 11, the water inlet of the multi-media filter 2 can be controlled according to production needs.

[0035] In a specific embodiment, it includes: a multi-media valve 21 and a multi-media pump 22; the multi-media valve 21 and the multi-media pump 22 are arranged on a pipeline connecting the water outlet of the multi-media filter 2 and the water inlet of the activated carbon filter 3, so as to control the water inlet of the multi-media filter 2.

[0036] In a specific embodiment, the activated carbon valve 31 and the pressure pump 32 are provided on the pipeline connecting the water outlet of the activated carbon filter 3 and the water inlet of the reverse osmosis filter 4. The pressure pump 32 is used to pressurize the liquid entering the reverse osmosis filter 4, so as to realize the reverse osmosis filtration treatment and the filtered water inlet control.

[0037] In a specific embodiment, it includes: a reverse osmosis valve 41 and a reverse osmosis pump 42; the reverse osmosis valve 41 and the reverse osmosis pump 42 are arranged on a pipeline connecting the water inlet of the soft water tank 5 and the water outlet of the reverse osmosis filter 4, and control the water outlet of the reverse osmosis filter 4. The water outlet of the soft water tank 5 is connected to the water inlet pipeline of the boiler treatment system, and a soft water pump 53 is arranged on the connecting pipeline.

[0038] In a specific embodiment, it includes: a drain valve 51 and a drain pump 52; a drain valve 51 and a drain pump 52 are arranged on the pipeline connecting the water inlet of the cooling water return pool 6 and the drain outlet of the reverse osmosis filter 4 to control the wastewater generated by the reverse osmosis filtration to enter the cooling water return pool 6. The cooling water return pool 6 collects cooling water from multiple channels and then passes it into the second type water pool 111 for circulating cooling.

[0039] In a specific embodiment, it includes: a first circulation pump 115 and a second circulation pump 114; the liquid outlet of the second water tank 111 and the water inlet pipeline of the steam turbine generator set cooling circulation chamber 112 are connected by a pipeline, and the second circulation pump 114 is arranged on the connecting pipeline; the liquid outlet of the second water tank 111 and the water inlet pipeline of the sugarcane squeezer motor cooling circulation chamber 113 are connected by a pipeline, and the first circulation pump 115 is arranged on the connecting pipeline.

[0040] In a specific embodiment, it includes: a cooling pump 122; the cooling pump 122 is arranged on a pipeline connecting the water inlet of the cooling tower 121 and the liquid outlet of the second-class water pool 111, and the cooling tower 121 is opened and lowered as needed for cooling treatment, and the treated water is returned to the second-class water pool 111 through the pipeline, so as to effectively cool the water in the second-class water pool 111. The second-class water pool 111 can be provided with multiple water inlets and outlets according to the circulation needs, and the water inlets and outlets in this application are used to illustrate the direction of water flow.

[0041] The specific locations of the steam turbine generator set cooling circulation chamber 112 and the sugarcane squeezer motor cooling circulation chamber 113 are set according to the equipment layout. In order to achieve cooling of the above components, cooling cavities and their water inlets and outlets are set. Since the locations of the steam turbine generator sets and sugarcane squeezer motors in each plant area are not exactly the same, they are not shown in the figure. Only a simplified schematic diagram of the cavity is shown in the figure.

[0042] The multi-media filter 2, reverse osmosis filter 4, activated carbon filter 3 and their auxiliary components used in this application are all commercially available products, such as the related equipment produced by Wuxi Chuanhui Thermal Power Equipment Manufacturing Co., Ltd.

[0043] The device was implemented at the Meng'a Sugar Factory of Yingmao Sugar Co., Ltd. in Xishuangbanna, Yunnan in 2022. After installing the device, the amount of raw water supplemented by Class II water was reduced.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler water treatment wastewater recycling device, characterized in that: include: A raw water tank (1), a water treatment system, a cooling water return pool (6), a second-class water pool (111), a turbine generator set cooling circulation chamber (112), a sugarcane press motor cooling circulation chamber (113), a first circulation pump (115), a second circulation pump (114), and a soft water tank (5); The water outlet of the raw water tank (1) and the water inlet of the water treatment system are connected through pipelines; The water outlet of the water treatment system and the soft water tank (5) are connected by pipeline; The water treatment system comprises: a reverse osmosis filter (4); a sewage outlet of the reverse osmosis filter (4) is connected to a cooling water return pool (6) pipeline; the cooling water return pool (6) and a second-class water pool (111) are connected to pipelines; a water outlet of the second-class water pool (111) is respectively connected to pipelines of a steam turbine generator set cooling circulation chamber (112) and a sugarcane press motor cooling circulation chamber (113); The first circulation pump (115) is arranged on a pipeline connecting a water outlet of the second-class water pool (111) and a water inlet of a cooling circulation chamber (113) of a motor of a sugarcane press; The second circulation pump (114) is arranged on a pipeline connecting a water outlet of the second-class water tank (111) and a water inlet of a cooling circulation chamber (112) of a steam turbine generator set; The water outlet of the cooling circulation chamber (112) of the steam turbine generator set and the water outlet of the cooling circulation chamber (113) of the motor of the sugarcane press are respectively connected to the pipelines of the second type of water tank (111).

2. The boiler water treatment wastewater recycling device according to claim 1 is characterized in that: include: A cooling tower (121); a water inlet of the cooling tower (121) is connected to a water outlet pipeline of the second-class water pool (111); and a water outlet of the cooling tower (121) is connected to a water inlet pipeline of the second-class water pool (111).

3. The boiler water treatment wastewater recycling device according to claim 2 is characterized in that: include: A cooling pump (122); the cooling pump (122) is arranged on a pipeline between a water inlet of the cooling tower (121) and a water outlet of the second-class water tank (111).

4. The boiler water treatment wastewater recycling device according to claim 1 is characterized in that: The water treatment system comprises: a multi-media filter (2) and an activated carbon filter (3); the multi-media filter (2) is connected to a raw water tank (1) through a pipeline; the multi-media filter (2) and the activated carbon filter (3) are connected through a pipeline; and the activated carbon filter (3) and the reverse osmosis filter (4) are connected through a pipeline.

5. The boiler water treatment wastewater recycling device according to claim 4 is characterized in that: include: A raw water valve (12) and a raw water pump (11); the raw water valve (12) and the raw water pump (11) are arranged at intervals on a pipeline connecting the multi-media filter (2) and the raw water tank (1).

6. The boiler water treatment wastewater recycling device according to claim 1 is characterized in that: include: Soft water pump (53); the soft water pump (53) is arranged on a pipeline connecting the soft water tank (5) and the water inlet of the boiler system.

7. The boiler water treatment wastewater recycling device according to claim 1 is characterized in that: include: A sewage discharge valve (51) and a sewage discharge pump (52); the sewage discharge valve (51) and the sewage discharge pump (52) are arranged on the sewage discharge port of the cooling water return pool (6) and the reverse osmosis filter (4).

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