Heat energy recycling system for steam condensation water

Abstract

The utility model discloses a heat energy recycling system for steam condensation water. The heat energy recycling system comprises a steam condensation water tank, a heat exchanger, a purified water source, a hot-pressing distilled water machine and a plurality of conveying pipelines for conveying liquid, the water outlet end of the purified water source is connected with the second water inlet end of the heat exchanger, and the first water outlet end of the heat exchanger is connected with the hot-pressing type distilled water machine. According to the utility model, purified water is used as a raw material for producing injection water through the heat exchanger, so that the temperature of the purified water is increased, and the steam consumption of the hot-pressing distilled water machine for producing the injection water is reduced. The time efficiency is improved, the heating heat energy consumption is reduced, and the heat energy utilization efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of steam condensate heat energy utilization technology, specifically to a steam condensate heat energy recovery and utilization system. Background Technology

[0002] Steam condensate usually refers to the water vapor in the air that condenses when it encounters an object with a temperature lower than the dew point. This dew is condensate. It can also refer to water formed by the condensation of various types of water vapor, such as condensate from power plants, drying equipment, and food factories.

[0003] Although steam condenses into water, its temperature remains relatively high, reaching 70℃~80℃. Currently, the heat energy of steam condensate is often utilized by supplying it to the boiler room under constant pressure through pipelines as boiler feedwater. After meeting the boiler's water needs, excess water is treated by a cooling heat exchanger and then discharged as wastewater, resulting in water waste and low heat energy utilization. Therefore, it is essential to further improve the heat energy utilization rate of steam condensate and reduce resource waste.

[0004] Therefore, this patent application is filed. Utility Model Content

[0005] The purpose of this invention is to provide a heat energy recovery and utilization system for steam condensate, which solves the current technical problems of low heat energy utilization rate and water waste of steam condensate.

[0006] This utility model is achieved through the following technical solution:

[0007] A heat energy recovery and utilization system for steam condensate includes a steam condensate tank, a heat exchanger, a purified water source, a thermostatic distillation water machine, and multiple conveying pipelines for liquid transportation.

[0008] The outlet of the steam condensate tank is connected to the first inlet of the heat exchanger, the outlet of the purified water source is connected to the second inlet of the heat exchanger, and the first outlet of the heat exchanger is connected to the thermostatic distillation machine.

[0009] As a preferred design, a power pump is provided on the delivery pipeline connecting the steam condensate tank and the heat exchanger to pump the steam condensate into the heat exchanger.

[0010] As a preferred design, two parallel conveying pipes are provided between the steam condensate tank and the heat exchanger, and each parallel conveying pipe is equipped with at least one power pump.

[0011] As a preferred design, one-way valves are provided on both sides of the power pump.

[0012] As a preferred design, the conveying pipeline between the steam condensate tank and the heat exchanger is equipped with a filter, a flexible connecting pipe section, and a check valve. The filter is located between the steam condensate tank and the power pump, and the check valve is located between the power pump and the heat exchanger.

[0013] As a preferred design, the pipeline between the check valve and the heat exchanger is also equipped with multiple pressure gauges, temperature sensors, and pressure sensors.

[0014] As a preferred design, a temperature sensor is installed on the conveying pipeline between the purified water source and the heat exchanger, and a temperature sensor is installed on the conveying pipeline between the heat exchanger and the hot-press distillation water machine.

[0015] As a preferred design, the second outlet of the heat exchanger is connected to the boiler room water tank.

[0016] As a preferred design, the second outlet of the heat exchanger is connected to the production water circulation tank, and the production water circulation tank is connected in parallel with the boiler room water tank pipeline.

[0017] As a preferred design, the conveying pipeline between the heat exchanger and the boiler room water tank and the production water circulation tank is equipped with temperature sensors and pressure sensors.

[0018] The advantages and beneficial effects of this utility model compared to the prior art are:

[0019] (1) The present invention discloses a heat energy recovery and utilization system for steam condensate water. The system heats the purified water used as raw material for producing water for injection through a heat exchanger, thereby increasing the temperature of the purified water and reducing the steam consumption of the hot-press distillation water machine in the production of water for injection. This improves time efficiency and reduces heating heat energy consumption, resulting in higher heat energy utilization efficiency.

[0020] (2) The heat energy recovery and utilization system of steam condensate of this utility model further improves the utilization of heat energy by passing the condensate after heat exchange into the boiler room water tank and the production water circulation tank to achieve the effect of comprehensive resource utilization. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0022] Figure 1 A schematic diagram of a heat energy recovery and utilization system for steam condensate provided in this application;

[0023] In the picture:

[0024] 1-Steam condensate tank, 2-Heat exchanger, 3-Purified water source, 4-Hot pressure distillation water machine, 5-Power pump, 6-One-way valve, 7-Filter, 8-Flexible connection pipe section, 9-Check valve, 10-Pressure gauge, 11-Temperature sensor, 12-Pressure sensor, 13-Boiler room water tank, 14-Production water circulation tank. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0026] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.

[0027] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" 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 limiting the scope of protection of this utility model.

[0029] The current utilization rate of steam condensate is low, especially the utilization of thermal energy, resulting in a waste of energy and water resources. To address these issues, this invention provides a steam condensate thermal energy recovery and utilization system, which is described in detail below through specific embodiments.

[0030] Example 1:

[0031] This embodiment uses an infusion production pipeline in the pharmaceutical process as an example (this is only one example; other industrial production application scenarios are also applicable, but they are not listed here).

[0032] like Figure 1 As shown, a steam condensate heat recovery system includes a steam condensate tank 1, a heat exchanger 2, a purified water source 3, a thermostatic distillation water machine 4, and multiple conveying pipelines for liquid transport.

[0033] Steam condensate tank 1 is located underground and is an underground condensate tank. The condensate sources include outdoor steam main condensate, sterilizer steam condensate, liquid preparation system steam condensate, hot press steam condensate, and water treatment station distribution module steam condensate. Heat exchanger 2 is a preheating plate heat exchanger with at least two inlet ends and two outlet ends, for cold and hot water respectively. Purified water source 3 is the feed water for producing water for injection. Steam condensate tank 1, heat exchanger 2, purified water source 3, and hot press distillation machine 4 are connected via corresponding pipelines.

[0034] The outlet of the steam condensate tank 1 is connected to the first inlet of the heat exchanger 2, allowing hotter water to enter the heat exchanger 2 through the first inlet. The outlet of the purified water source 3 is connected to the second inlet of the heat exchanger 2, allowing cooler purified water to enter the heat exchanger 2 through the second inlet. The first outlet of the heat exchanger 2 is connected to the hot-press distillation machine 4. After the hot steam condensate exchanges heat with the cooler purified water in the heat exchanger 2, the temperature of the purified water increases. This increases the temperature of the purified water, which then passes through the hot-press distillation machine 4 at the first outlet, providing heat energy to the machine. This effectively increases the steam consumption of the hot-press distillation machine 4, improves production efficiency, and reduces energy consumption.

[0035] Furthermore, a power pump 5 is installed on the conveying pipeline connecting the steam condensate tank 1 and the heat exchanger 2 to pump the steam condensate into the heat exchanger 2. The power pump 5 is selected as a high-temperature pump resistant to high temperatures, and two conveying pipelines can be provided, i.e., two parallel conveying pipelines are provided between the steam condensate tank 1 and the heat exchanger 2, and each parallel conveying pipeline is equipped with at least one power pump 5. Figure 1As shown in the diagram. Alternatively, three, four, or more parallel conveying pipelines can be installed, with a power pump 5 installed on each pipeline, forming a high-temperature multi-stage pump system. Stainless steel pipelines are used to convey high-temperature steam condensate.

[0036] Even better, one-way valves 6 are provided on both sides of each power pump 5 to ensure a stable and reliable delivery of steam condensate.

[0037] A filter 7, a flexible connecting pipe section 8, and a check valve 9 are also installed on the conveying pipeline between the steam condensate tank 1 and the heat exchanger 2. The filter 7 is located between the steam condensate tank 1 and the power pump 5 to filter the steam condensate from the tank 1 before pumping it out, which also improves the service life of the power pump 5. Multiple flexible connecting pipe sections 8 can be installed on two parallel conveying pipelines. The flexible connecting pipe sections 8 can compensate for the thermal expansion and contraction of the pipeline, thereby protecting the pipeline from damage. They also play a role in vibration reduction and noise reduction, and facilitate subsequent installation and maintenance. The check valve 9 is located between the power pump 5 and the heat exchanger 2 to prevent the flowing water from flowing back to the power pump 5.

[0038] To achieve constant-speed delivery of steam condensate within the pipeline, in this embodiment, multiple pressure gauges 10 are also installed on the delivery pipeline between the check valve 9 and the heat exchanger 2, such as... Figure 1 As shown, this is to facilitate monitoring of the pressure within the pipeline. Temperature sensor 11 (TT) and pressure sensor 12 (PT) are also installed, both located close to heat exchanger 2, to monitor the temperature and pressure of the condensate before it enters heat exchanger 2 in real time for convenient control.

[0039] A temperature sensor 11 is also installed on the conveying pipeline between the purified water source 3 and the heat exchanger 2 to monitor the temperature of the purified water before it enters. A temperature sensor 11(TT) is also installed on the conveying pipeline between the heat exchanger 2 and the thermostatic water distiller 4 to monitor the temperature of the purified water after heat exchange, so as to facilitate the adjustment and control of the heat exchanger 2.

[0040] Example 2:

[0041] This embodiment is a further improvement on embodiment 1. In this embodiment, a boiler room water tank 13 is connected to the second outlet of the heat exchanger 2. Since the temperature of the steam condensate after heat exchange in the heat exchanger 2 will decrease by about 10°C, it can be returned to the boiler room water tank 13 and used as boiler feed water, further improving the utilization efficiency of water resources and thermal energy.

[0042] Furthermore, the second outlet of the heat exchanger 2 is also connected to the production water circulation tank 14, which is connected in parallel with the pipeline of the boiler room water tank 13. A level control system can be installed in the boiler room water tank 13. After meeting the boiler's operating requirements, the excess steam condensate after heat exchange can be transported back to the large circulating water pool (i.e., the production water circulation tank 14) for daily circulating water replenishment. This increases the daily water level in the circulating water pool, reduces the amount of tap water needed for replenishment, ensures system operation, and achieves comprehensive resource utilization.

[0043] Temperature sensor 11 and pressure sensor 12 are installed on the conveying pipeline between heat exchanger 2 and boiler room water tank 13 and production water circulation tank 14. These temperature sensor 11 and pressure sensor 12 are located close to heat exchanger 2.

[0044] In this invention, multiple control valves are also installed on each conveying pipeline as needed to control the opening and closing of water flow according to actual application.

[0045] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A heat recovery system for steam condensate water, characterized by, It comprises a steam condensate tank (1), a heat exchanger (2), a purified water source (3), a hot pressure distillation water machine (4), and a plurality of conveying pipelines for liquid conveying. The water outlet end of the steam condensate tank (1) is connected to the first water inlet end of the heat exchanger (2), the water outlet end of the purified water source (3) is connected to the second water inlet end of the heat exchanger (2), and the first water outlet end of the heat exchanger (2) is connected to the hot pressure distillation water machine (4).

2. The system for recovering heat energy from steam condensate according to claim 1, wherein A power pump (5) is arranged on the conveying pipeline connected between the steam condensate tank (1) and the heat exchanger (2) to pump the steam condensate into the heat exchanger (2).

3. The thermal energy recovery system for steam condensate water according to claim 2, wherein Two parallel conveying pipelines are arranged between the steam condensate tank (1) and the heat exchanger (2), and at least one power pump (5) is arranged on each parallel conveying pipeline.

4. The thermal energy recovery system for steam condensate water according to claim 2, wherein Unidirectional valves (6) are arranged on both sides of the power pump (5).

5. A system for recovering heat energy from steam condensate according to any one of claims 2 to 4, characterised in that, A filter (7), a flexible connecting pipe section (8), and a check valve (9) are arranged on the conveying pipeline between the steam condensate tank (1) and the heat exchanger (2), the filter (7) is located between the steam condensate tank (1) and the power pump (5), and the check valve (9) is located between the power pump (5) and the heat exchanger (2).

6. The thermal energy recovery system for steam condensate water according to claim 5, wherein A plurality of pressure gauges (10), temperature sensors (11), and pressure sensors (12) are further arranged on the conveying pipeline between the check valve (9) and the heat exchanger (2).

7. The system for recovering heat energy from steam condensate according to claim 5, wherein A temperature sensor (11) is arranged on the conveying pipeline between the purified water source (3) and the heat exchanger (2), and a temperature sensor (11) is arranged on the conveying pipeline between the heat exchanger (2) and the hot pressure distillation water machine (4).

8. The thermal energy recovery system for steam condensate water according to claim 6 or 7, characterized in that, The second water outlet end of the heat exchanger (2) is connected to a boiler room water tank (13).

9. The thermal energy recovery system for steam condensate water according to claim 8, wherein The second water outlet end of the heat exchanger (2) is connected to a production water circulating water tank (14), and the production water circulating water tank (14) is arranged in parallel with the boiler room water tank (13) in the pipeline.

10. The thermal energy recovery system for steam condensate water according to claim 9, wherein Temperature sensors (11) and pressure sensors (12) are arranged on the conveying pipelines between the heat exchanger (2) and the boiler room water tank (13) and the production water circulating water tank (14).

Images