Hot water comprehensive utilization system

Abstract

The utility model belongs to the technical field of energy comprehensive utilization and energy conservation, and particularly relates to a hot water comprehensive utilization system. According to the system, high-temperature condensate water generated by an air conditioning unit serves as a first heat source of a double-heat-source heat exchanger, and high-temperature condensate water generated by a saturated steam pipe network and process equipment of a tobacco shred making workshop serves as a second heat source of the double-heat-source heat exchanger. Cooling water and demineralized water of a boiler secondary energy saver are used as cold sources of the double-heat-source heat exchanger. In the double-heat-source heat exchanger, a first heat source and a second heat source exchange heat with a cold source, so that the temperature of condensate water which is more than 100 DEG C and is generated by a saturated steam pipe network and process equipment of the cut tobacco making workshop is reduced to below 100 DEG C, flash steam is effectively eliminated, and meanwhile, the cold source is heated to be recycled by the system. Hot water subjected to heat exchange through the system is used for air conditioner micro-fog humidification, air conditioner fresh air preheating and heating and boiler room water supply, and therefore efficient cyclic utilization of hot water generated in cigarette production is achieved, and energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] This utility model relates to a comprehensive hot water utilization system, which is particularly suitable for cigarette factories and belongs to the field of comprehensive energy utilization and energy-saving technology. Background Technology

[0002] Cigarette factories generate a large amount of hot water with high heat and high quality during the production process.

[0003] In the yarn-making workshop: the high-temperature condensate from the saturated steam network is approximately 180℃, with a production rate of 0.3 t / h; the high-temperature condensate from the yarn-making equipment is approximately 120℃, with a total production rate of 6.86 t / h (including 1 vacuum rehumidifier, producing 0.3 t / h of condensate; 4 loose rehumidifiers, producing 0.2 t / h of condensate per unit; 3 primary feeders, producing 0.2 t / h of condensate per unit; 4 secondary feeders, producing 0.2 t / h of condensate per unit; 2 thin-plate yarn drying machines A, producing 0.5 t / h of condensate per unit; 2 thin-plate yarn drying machines B, producing 1 t / h of condensate per unit; and 2 thin-plate stem yarn drying machines, producing 0.68 t / h of condensate per unit). The high-temperature cooling water from the airflow yarn drying machine is approximately 80℃, with a production rate of 8 t / h.

[0004] Air conditioning room: The high-temperature condensate water generated by the air conditioning unit is about 80℃, and the production rate is 3t / h.

[0005] Boiler room: The boiler's secondary economizer produces cooling water at approximately 50°C, with a production capacity of 10t / h.

[0006] First, a large amount of hot water is not being used fully and rationally, resulting in serious energy waste. It also increases the dependence on heat source equipment such as boilers, causing boiler energy consumption to remain high, which in turn leads to an increase in production costs.

[0007] Secondly, during the steam condensate recovery process, the high-temperature condensate exceeding 100°C generated by the saturated steam network and the silk-making equipment is highly susceptible to flash steam under pressure reduction conditions. The generation of flash steam not only leads to energy loss, but its disorderly discharge can also affect the workshop's production environment and the normal operation of equipment.

[0008] Therefore, how to make reasonable use of these hot waters, effectively eliminate flash steam, improve energy efficiency, reduce environmental impact, and lower production costs has become a key issue that cigarette factories urgently need to address. Utility Model Content

[0009] In response to the work requirements and existing problems in the aforementioned background technology, the inventors have considered and innovated in order to provide a comprehensive hot water utilization system that eliminates the flash steam heat energy generated by high-temperature condensate in cigarette factories, achieves efficient recycling of hot water, and realizes the goal of energy conservation and emission reduction.

[0010] To solve the above problems and achieve the above objectives, the present invention adopts the following technical solution:

[0011] A comprehensive hot water utilization system, comprising:

[0012] The air conditioning room (1) includes a fresh air handling unit (11) and an air conditioning unit (14). The fresh air handling unit (11) has several units, including a fresh air preheating coil (111) and a heating coil (112). One end of the fresh air handling unit (11) is connected to the main water supply pipe (12) of the fresh air handling unit, and the other end is connected to the main condensate pipe (13) of the fresh air handling unit. The main condensate pipe (13) of the fresh air handling unit is connected to the condensate tank (34) of the silk-making heat station (3). The air conditioning unit (14) is connected to the main condensate pipe (16) of the air conditioning unit through an air conditioning condensate branch pipe (161).

[0013] The silk-making workshop (2) includes a saturated steam pipeline (21) and silk-making process equipment. The saturated steam pipeline (21) is connected to the silk-making process condensate main pipe (29) through a power steam pipe (211). The silk-making process equipment includes a vacuum rehumidifier (22), a loose rehumidifier (23), a primary feeder (24), a secondary feeder (25), a thin plate drying machine A (26), a thin plate drying machine B (27), and a roller thin plate drying machine (28). All the silk-making process equipment is connected to the silk-making process condensate main pipe (29).

[0014] The silk-making heat station (3) includes boiler secondary economizer cooling water (31), demineralized water (32), dual heat source heat exchanger (33), condensate tank (34), micro-mist humidification pump group (35), hot water recycling pump group (36), turbidity detection valve group (37), and mixing valve (38); the boiler secondary economizer cooling water (31) is connected to the cold source inlet end at the bottom of the dual heat source heat exchanger (33) through the boiler secondary economizer cooling water main pipe (311); the demineralized water (32) is connected to the boiler secondary economizer cooling water main pipe (311) through a pipeline and an electric regulating valve group, and the electric regulating valve group is connected to the boiler secondary economizer cooling water main pipe (311). The valve assembly includes an electric regulating valve and two shut-off valves; a set of micro-mist humidification pumps (35) and three sets of hot water recycling pumps (36) are connected in parallel at the bottom of the condensate tank (34). The micro-mist humidification pumps (35) are connected to the mixing valve (38) through a pipe. The mixing valve (38) is connected to the air conditioning unit (14) through the high-pressure micro-mist water supply main pipe (15) and the high-pressure micro-mist water supply branch pipe (151); the hot water recycling pumps (36) are connected in parallel with two pipelines, one of which is connected to the fresh air unit water supply main pipe (12), and the other is connected to the boiler room (39) through the turbidity detection valve assembly (37).

[0015] As a preferred embodiment of the present invention, the silk-making workshop (2) further includes airflow drying machine cooling water (2A), which is connected to the condensate tank (34) through pipes and shut-off valves.

[0016] As a preferred embodiment of this utility model, the air conditioning condensate main pipe (16) is connected to the heat source inlet end on the upper left side of the dual heat source heat exchanger (33), and the high-temperature condensate generated by the air conditioning unit (14) is input into the dual heat source heat exchanger (33) as the first heat source; the filament-making process condensate main pipe (29) is connected to the heat source inlet end on the lower left side of the dual heat source heat exchanger (33), and the saturated steam pipe network (21) and the high-temperature condensate generated by the filament-making process equipment are input into the dual heat source heat exchanger (33) as the second heat source.

[0017] As a preferred embodiment of this utility model, the right end outlet of the dual heat source heat exchanger (33) is connected to the condensate tank (34) through a pipe, and a temperature sensor is connected to the outlet pipe. The temperature sensor is connected to the electric regulating valve group on the demineralized water (32) pipeline. The top outlet is connected to the condensate tank (34) through a pipe, and a temperature sensor is connected to the outlet pipe.

[0018] As a preferred embodiment of this utility model, the top of the condensate tank (34) is connected to an electric ball valve and an automatic air vent valve (341), and the electric ball valve is connected to a pressure sensor (343); the condensate tank (34) is connected to a temperature sensor (342) for detecting water temperature; the condensate tank (34) is connected to a magnetic float level gauge (344) with remote transmission function, and an overflow pipe is connected to the side, with a drain valve installed on the overflow pipe; a sewage pipe is provided at the bottom of the condensate tank (34), and a shut-off valve is installed on the sewage pipe.

[0019] As a preferred embodiment of the present invention, the micro-mist humidification pump group (35) includes a shut-off valve installed at the inlet, a pressure gauge and a check valve shut-off valve at the outlet, and the micro-mist humidification pump group (35) is connected to a micro-mist humidification pump group pressure sensor (351).

[0020] As a preferred embodiment of the present invention, the hot water reuse pump set (36) includes a shut-off valve installed at the inlet, a pressure gauge and a check valve shut-off valve installed at the outlet, and the hot water reuse pump set (36) is connected to a hot water reuse pump set pressure sensor (361).

[0021] As a preferred embodiment of the present invention, the turbidity detection valve assembly (37) includes a turbidity detector (371), a sewage discharge electric ball valve (372), and a main pipeline electric ball valve (373).

[0022] As a preferred embodiment of the present invention, the cold source inlet of the mixing valve (38) is connected to a shut-off valve and connected to the demineralized water bypass (381), the heat source inlet is connected to a shut-off valve and connected to the micro-mist humidification pump group (35), and the outlet is connected to a shut-off valve and connected to the high-pressure micro-mist water supply main pipe (15).

[0023] The working principle of this utility model is as follows:

[0024] 1. Heat source collection and transportation

[0025] The high-temperature condensate water with a temperature of about 80°C generated by the air conditioning unit (14) in the air conditioning room (1) is connected to the heat source inlet end on the upper left side of the dual heat source heat exchanger (33) through the air conditioning condensate water main pipe (16) as the first heat source; the high-temperature condensate water with a temperature of about 180°C generated by the saturated steam pipe network (21) in the silk making workshop and the high-temperature condensate water with a temperature of about 120°C generated by the silk making process equipment is connected to the heat source inlet end on the lower left side of the dual heat source heat exchanger (33) through the silk making process condensate water main pipe (29) as the second heat source.

[0026] The boiler secondary economizer generates cooling water (31) at a medium temperature of about 50°C, which is connected to the cold source inlet at the bottom of the dual heat source heat exchanger (33) through a pipe. Demineralized water (32) is connected to the main cooling water pipe (311) of the boiler secondary economizer through a pipe and an electric regulating valve group. The boiler secondary economizer cooling water (31) and demineralized water (32) serve as cold sources.

[0027] 2. Heat exchange process

[0028] In the dual heat source heat exchanger (33), the first heat source and the second heat source travel through the shell layer, while the cold source travels through the tube layer. The first heat source, the second heat source, and the cold source exchange heat within the dual heat source heat exchanger (33).

[0029] Since the condensate in the second heat source is all above 100°C, it is accompanied by two states of gas and liquid during the transportation of condensate in the main pipe (29) of the silk making process. After heat exchange, the temperature drops to 90°C, thereby eliminating flash vapor and realizing pure liquid fluid transportation.

[0030] The temperature of the cold source rises to 90°C, which can be used for subsequent recycling.

[0031] During this process, when the temperature sensor installed on the outlet pipe at the right end of the dual heat source heat exchanger (33) detects that the outlet water temperature exceeds 90°C, the electric regulating valve connected to the demineralized water pipe opens to supplement the cold source of demineralized water (32), thereby achieving constant temperature control of the outlet water temperature and ensuring stable operation of the system.

[0032] 3. The function of the condensate tank

[0033] The condensate and cooling water after heat exchange, as well as the cooling water (2A) of the airflow drying machine, are all stored in the condensate tank (34).

[0034] An electric ball valve and an automatic air vent valve (341) are installed on the top of the condensate tank (34). When the pressure at the top of the condensate tank (34) exceeds 20 kPa, the pressure sensor controls the electric ball valve to open and complete the pressure relief, and the automatic air vent valve (341) can discharge excess gas.

[0035] The condensate tank (34) is equipped with a temperature sensor (342) to detect the water temperature, and a magnetic float level gauge (344) with remote transmission function is installed to monitor the water level. The overflow pipe and drain valve play a role in preventing steam and draining water when the water level is too high. The bottom drain pipe is used for regular sewage discharge and cleaning.

[0036] 4. Hot water reuse

[0037] Application 1: Air conditioning mist humidification. The cold source inlet of the mixing valve (38) is connected to the demineralized water (32), and the heat source inlet is connected to the mist humidification pump group (35) and the hot water in the condensate tank (34). By setting the outlet temperature of the mixing valve (38) to 40℃, the mixing valve (38) automatically adjusts the flow of the cold source and the heat source to keep the outlet water temperature constant at 40℃. The constant temperature water is connected to the air conditioning mist humidification system of the air conditioning unit (14) through the high pressure mist water supply main pipe (15) to humidify the air. The mixing valve (38) is also equipped with a demineralized water bypass (381). When the mixing valve (38) fails, this bypass can be opened to supply water for air conditioning humidification.

[0038] Application 2: Preheating and heating of fresh air in air conditioning. The hot water reuse pump unit (36) is connected to the fresh air handling unit (11) for preheating and heating of fresh air in air conditioning. The heated water is returned to the condensate tank (34).

[0039] Application 3: Boiler room water supply. The hot water reuse pump group (36) is connected to the boiler room (39) via another turbidity detection valve group (37). The turbidity detector (371) in the turbidity detection valve group (37) detects the turbidity of the reused hot water. When the turbidity of the reused hot water is qualified, the drain electric ball valve (372) is closed and the main pipeline electric ball valve (373) is opened to supply water to the boiler room (39). When the turbidity of the reused water is unqualified, the main pipeline electric ball valve (373) is closed and the drain electric ball valve (372) is opened to drain water, ensuring the quality of water supply.

[0040] The beneficial effects of this utility model are:

[0041] 1. This utility model achieves efficient energy utilization and energy conservation and emission reduction. This utility model effectively utilizes a large amount of hot water that was originally wasted in the cigarette factory production process, and reuses it in air conditioning mist humidification, air conditioning fresh air preheating and heating, boiler room water supply and other processes, so that heat is efficiently transferred and utilized, reducing the energy consumption of the boiler room and reducing greenhouse gas emissions.

[0042] 2. This invention eliminates flash steam. By utilizing the heat exchange process between the system's own medium-temperature cooling water and high-temperature condensate in a dual-heat-source heat exchanger, it effectively eliminates flash steam that is easily generated by the high-temperature condensate from the saturated steam network and the silk-making process equipment under pressure reduction conditions. This not only avoids additional energy losses but also prevents the adverse effects of its disorderly discharge on the workshop production environment and normal equipment operation.

[0043] 3. This utility model boasts high reliability and stability: The dual-heat-source heat exchanger design ensures stable energy supply. Even in the event of temporary shutdowns of the silk-making equipment or fluctuations in saturated steam network pressure, the system can still maintain basic heat supply relying on the other heat source, ensuring continuous production, reducing the risk of production interruptions due to heat source issues, and guaranteeing stable factory operations. By installing turbidity detection valves on the hot water in the recycled boiler room, the water supply quality is effectively guaranteed, preventing damage to boilers and other equipment due to water quality problems, further enhancing the reliability and stability of this system. Attached Figure Description

[0044] Figure 1 This is a connection diagram of the system described in this utility model;

[0045] The numbers in the diagram are:

[0046] 1—Air conditioning room, 11—Fresh air handling unit, 111—Fresh air preheating coil, 112—Heating coil, 12—Fresh air handling unit main water supply pipe, 13—Fresh air handling unit condensate main pipe, 14—Air conditioning unit, 15—High pressure micro-mist water supply main pipe, 151—High pressure micro-mist water supply branch pipe, 16—Air conditioning condensate main pipe, 161—Air conditioning condensate branch pipe;

[0047] 2—Silk making workshop, 21—Saturated steam pipeline, 211—Power steam pipe, 22—Vacuum rehumidifier, 23—Loose rehumidifier, 24—Primary feeder, 25—Secondary feeder, 26—Thin plate drying machine A, 27—Thin plate drying machine B, 28—Roller thin plate drying machine, 29—Silk making process condensate main pipe, 2A—Airflow drying machine cooling water;

[0048] 3—Fiber-making heating station; 31—Boiler secondary economizer cooling water; 311—Boiler secondary economizer cooling water main pipe; 32—Demineralized water; 33—Dual heat source heat exchanger; 34—Condensate tank; 341—Automatic air vent valve; 342—Temperature sensor; 343—Pressure sensor; 344—Magnetic level gauge; 35—Micro-mist humidification pump set; 351—Micro-mist humidification pump set pressure sensor; 36—Hot water reuse pump set; 361—Hot water reuse pump set pressure sensor; 37—Turbidity detection valve set; 371—Turbidity detector; 372—Sewage discharge electric ball valve; 373—Main pipe electric ball valve; 38—Mixing valve; 381—Demineralized water bypass; 39—Boiler room. Detailed Implementation

[0049] To make the purpose, technical solution and advantages of this utility model patent clearer, the present utility model patent will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model patent. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of this utility model patent.

[0050] Example 1

[0051] like Figure 1 The hot water comprehensive utilization system shown includes an air conditioning room 1, a silk-making workshop 2 and a silk-making heat station 3.

[0052] Air conditioning room 1 includes a fresh air handling unit 11 and an air conditioning unit 14. The fresh air handling unit 11 has several units, including a fresh air preheating coil 111 and a heating coil 112. One end of the fresh air handling unit 11 is connected to the fresh air handling unit water supply main pipe 12, and the other end is connected to the fresh air handling unit condensate main pipe 13. The fresh air handling unit condensate main pipe 13 is connected to the condensate tank 34 of the silk-making heat station 3. The condensate tank 34 supplies hot water to the fresh air handling unit 11 through the hot water reuse pump unit 36 ​​and the fresh air handling unit water supply main pipe 12 for air conditioning fresh air preheating and heating. After that, the hot water returns to the condensate tank 34 through the fresh air handling unit condensate main pipe 13. The air conditioning unit 14 is connected to the air conditioning condensate main pipe 16 via an air conditioning condensate branch pipe 161. The air conditioning condensate branch pipe 161 is equipped with a steam trap group. The air conditioning condensate main pipe 16 is connected to the heat source inlet end on the upper left side of the dual heat source heat exchanger 33, and inputs the approximately 80°C high-temperature condensate generated by the air conditioning unit 14 into the dual heat source heat exchanger 33 as the first heat source. Then, the condensate tank 34 is connected to the air conditioning unit 14 via a micro-mist humidification pump group 35, a mixing valve 38, a high-pressure micro-mist water supply main pipe 15, and a high-pressure micro-mist water supply branch pipe 151, and supplies the air conditioning unit 14 with 40°C warm water that has been constant-temperature regulated by the mixing valve 38 for micro-mist humidification.

[0053] The silk-making workshop 2 includes a saturated steam pipeline network 21 and silk-making process equipment. The saturated steam pipeline network 21 is connected to the silk-making process condensate main pipe 29 via a power steam pipe 211. The silk-making process equipment includes a vacuum rehumidifier 22, a loose rehumidifier 23, a primary feeder 24, a secondary feeder 25, a thin-plate drying machine A 26, a thin-plate drying machine B 27, and a roller-type thin-plate drying machine 28. All silk-making process equipment is connected to the silk-making process condensate main pipe 29. The silk-making process condensate main pipe 29 is connected to the heat source inlet end on the lower left side of the dual heat source heat exchanger 33, and the high-temperature condensate water generated by the saturated steam pipeline network 21 (approximately 180°C) and the silk-making process equipment (approximately 120°C) is input into the dual heat source heat exchanger 33 via the silk-making process condensate main pipe 29 as a second heat source. The approximately 80°C airflow cooling water 2A generated in the silk-making workshop 2 is output to the condensate tank 34 through pipes and a shut-off valve.

[0054] The silk-making heat station 3 includes a boiler secondary economizer cooling water 31, demineralized water 32, a dual heat source heat exchanger 33, a condensate tank 34, a micro-mist humidification pump set 35, a hot water reuse pump set 36, a turbidity detection valve set 37, and a mixing valve 38. The boiler secondary economizer cooling water 31 is connected to the cold source inlet at the bottom of the dual heat source heat exchanger 33 via a main cooling water pipe 311. The demineralized water 32 is connected to the main cooling water pipe 311 via a pipe and an electric regulating valve set. The electric regulating valve set includes one electric regulating valve and two shut-off valves. The boiler secondary economizer generates cooling water 31 at approximately 50°C, which is connected to the cold source inlet at the bottom of the dual heat source heat exchanger 33 via a pipe. The boiler secondary economizer cooling water 31 and the demineralized water 32 serve as cold sources. In the dual-heat-source heat exchanger 33, the first and second heat sources pass through the shell layer, while the cold source passes through the tube layer. The first, second, and cold sources exchange heat within the dual-heat-source heat exchanger 33. Since the condensate in the second heat source exceeds 100°C, it undergoes both gas and liquid phases during the condensate transport in the main condensate pipe 29 of the silk-making process. After heat exchange, the temperature drops to 90°C, thus eliminating flash vapor and achieving pure liquid fluid transport. The cold source temperature rises to 90°C, allowing for subsequent recycling. The outlet at the right end of the dual-heat-source heat exchanger 33 is connected via a pipe... A temperature sensor is connected to the outlet pipe of the condensate tank 34, and the temperature sensor is connected to the electric regulating valve group on the demineralized water 32 pipe. The top outlet is connected to the condensate tank 34 through a pipe, and a temperature sensor is connected to the outlet pipe. During the heat exchange process, when the temperature sensor on the outlet pipe at the right end of the dual heat source heat exchanger 33 detects that the outlet water temperature exceeds 90℃, the electric regulating valve connected to the demineralized water pipe opens to supplement the cold source of demineralized water 32, so as to achieve constant temperature control of the outlet water and ensure stable operation of the system.

[0055] Furthermore, the condensate and cooling water after heat exchange, as well as the cooling water 2A of the airflow drying machine, are all stored in the condensate tank 34. The condensate tank 34 is equipped with an electric ball valve and an automatic air vent valve 341 at its top. When the pressure at the top of the condensate tank 34 exceeds 20 kPa, the pressure sensor controls the electric ball valve to open and release pressure, while the automatic air vent valve 341 releases excess gas. The condensate tank 34 is equipped with a temperature sensor 342 to detect the water temperature and a magnetic level gauge 344 with remote transmission function to monitor the water level. The overflow pipe and drain valve function to prevent steam and drain water when the water level is too high. The bottom drain pipe is used for regular drainage and cleaning. The top of the condensate tank 34 is connected to an electric ball valve and an automatic air vent valve 341, and the electric ball valve is connected to a pressure sensor 343. The condensate tank 34 is internally connected to a temperature sensor 342 for detecting the water temperature. The condensate tank 34 is connected to a magnetic level gauge 344 with remote transmission function, and an overflow pipe is connected to the side, on which a drain valve is installed. The bottom of the condensate tank 34 is equipped with a drain pipe, on which a shut-off valve is installed.

[0056] Furthermore, a set of micro-mist humidification pumps 35 and three sets of hot water recycling pumps 36 are connected in parallel at the bottom of the condensate tank 34.

[0057] Furthermore, the micro-mist humidification pump assembly 35 includes a shut-off valve installed at the inlet, a pressure gauge and a check valve shut-off valve at the outlet, and a micro-mist humidification pump assembly pressure sensor 351 connected to the micro-mist humidification pump assembly 35. The micro-mist humidification pump assembly 35 is connected to a shut-off valve through a pipeline and is connected to the heat source inlet of the mixing valve 38. The cold source inlet of the mixing valve 38 is connected to a shut-off valve and is connected to the demineralized water bypass 381. The demineralized water bypass 381 is connected to the demineralized water 32. The outlet of the mixing valve 38 is connected to a shut-off valve and is connected to the high-pressure micro-mist water supply main pipe 15. By setting the outlet temperature of the mixing valve 38 to 40℃, the mixing valve 38 automatically adjusts the flow rates of the cold source and the heat source to keep the outlet water temperature constant at 40℃. The constant temperature water is connected to the air conditioning micro-mist humidification system of the air conditioning unit 14 through the high-pressure micro-mist water supply main pipe 15 to humidify the air. The mixing valve 38 is also equipped with a demineralized water bypass 381. When the mixing valve 38 fails, this bypass can be opened to supply water for air conditioning humidification.

[0058] Furthermore, the hot water reuse pump set 36 includes a shut-off valve installed at the inlet, a pressure gauge and a check valve shut-off valve at the outlet, and a hot water reuse pump set pressure sensor 361 connected to the hot water reuse pump set 36. Three sets of hot water reuse pump sets 36 are connected in parallel to two pipelines. One pipeline connects to the main water supply pipe 12 of the fresh air handling unit, supplying hot water to the fresh air handling unit 11 for air conditioning preheating and heating. The other pipeline connects to the boiler room 39 via a turbidity detection valve set 37. The turbidity detection valve set 37 includes a turbidity detector 371, a drain electric ball valve 372, and a main pipeline electric ball valve 373. When the turbidity detector 371 detects that the hot water turbidity is within acceptable limits, the drain electric ball valve 372 closes and the main pipeline electric ball valve 373 opens, supplying water to the boiler room 39. When the hot water turbidity is unacceptable, the main pipeline electric ball valve 373 closes and the drain electric ball valve 372 opens to drain water, ensuring water supply quality.

[0059] Finally, it should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A comprehensive hot water utilization system, characterized in that it include: The air conditioning room (1) includes a fresh air handling unit (11) and an air conditioning unit (14). The fresh air handling unit (11) has several units, including a fresh air preheating coil (111) and a heating coil (112). One end of the fresh air handling unit (11) is connected to the main water supply pipe (12) of the fresh air handling unit, and the other end is connected to the main condensate pipe (13) of the fresh air handling unit. The main condensate pipe (13) of the fresh air handling unit is connected to the condensate tank (34) of the silk-making heat station (3). The air conditioning unit (14) is connected to the main condensate pipe (16) of the air conditioning unit through an air conditioning condensate branch pipe (161). The silk-making workshop (2) includes a saturated steam pipeline (21) and silk-making process equipment. The saturated steam pipeline (21) is connected to the silk-making process condensate main pipe (29) through a power steam pipe (211). The silk-making process equipment includes a vacuum rehumidifier (22), a loose rehumidifier (23), a primary feeder (24), a secondary feeder (25), a thin plate drying machine A (26), a thin plate drying machine B (27), and a roller thin plate drying machine (28). All the silk-making process equipment is connected to the silk-making process condensate main pipe (29). The silk-making heat station (3) includes boiler secondary economizer cooling water (31), demineralized water (32), dual heat source heat exchanger (33), condensate tank (34), micro-mist humidification pump group (35), hot water recycling pump group (36), turbidity detection valve group (37), and mixing valve (38); the boiler secondary economizer cooling water (31) is connected to the cold source inlet end at the bottom of the dual heat source heat exchanger (33) through the boiler secondary economizer cooling water main pipe (311); the demineralized water (32) is connected to the boiler secondary economizer cooling water main pipe (311) through a pipeline and an electric regulating valve group, and the electric regulating valve group is connected to the boiler secondary economizer cooling water main pipe (311). The valve assembly includes an electric regulating valve and two shut-off valves; a set of micro-mist humidification pumps (35) and three sets of hot water recycling pumps (36) are connected in parallel at the bottom of the condensate tank (34). The micro-mist humidification pumps (35) are connected to the mixing valve (38) through a pipe. The mixing valve (38) is connected to the air conditioning unit (14) through the high-pressure micro-mist water supply main pipe (15) and the high-pressure micro-mist water supply branch pipe (151); the hot water recycling pumps (36) are connected in parallel with two pipelines, one of which is connected to the fresh air unit water supply main pipe (12), and the other is connected to the boiler room (39) through the turbidity detection valve assembly (37).

2. The hot water comprehensive utilization system according to claim 1, characterized in that, The silk-making workshop (2) also includes airflow drying machine cooling water (2A), which is connected to the condensate tank (34) through pipes and shut-off valves.

3. The hot water comprehensive utilization system according to claim 1, characterized in that, The air conditioning condensate main pipe (16) is connected to the heat source inlet end on the upper left side of the dual heat source heat exchanger (33), and the high-temperature condensate generated by the air conditioning unit (14) is input into the dual heat source heat exchanger (33) as the first heat source; the filament-making process condensate main pipe (29) is connected to the heat source inlet end on the lower left side of the dual heat source heat exchanger (33), and the saturated steam network (21) and the high-temperature condensate generated by the filament-making process equipment are input into the dual heat source heat exchanger (33) as the second heat source.

4. A comprehensive hot water utilization system according to claim 1, characterized in that, The right outlet of the dual heat source heat exchanger (33) is connected to the condensate tank (34) via a pipe. A temperature sensor is connected to the outlet pipe, and the temperature sensor is connected to the electric regulating valve group on the demineralized water (32) pipeline. The top outlet is connected to the condensate tank (34) via a pipe, and a temperature sensor is connected to the outlet pipe.

5. A comprehensive hot water utilization system according to claim 1, characterized in that, The top of the condensate tank (34) is connected to an electric ball valve and an automatic air vent valve (341), and the electric ball valve is connected to a pressure sensor (343); the condensate tank (34) is connected to a magnetic float level gauge (344) with remote transmission function, and an overflow pipe is connected to the side, with a drain valve installed on the overflow pipe; a sewage pipe is provided at the bottom of the condensate tank (34), and a shut-off valve is installed on the sewage pipe.

6. A comprehensive hot water utilization system according to claim 1, characterized in that, The micro-mist humidification pump group (35) includes a shut-off valve installed at the inlet, a pressure gauge and a check valve shut-off valve at the outlet, and the micro-mist humidification pump group (35) is connected to a micro-mist humidification pump group pressure sensor (351); the hot water recycling pump group (36) includes a shut-off valve installed at the inlet, a pressure gauge and a check valve shut-off valve at the outlet, and the hot water recycling pump group (36) is connected to a hot water recycling pump group pressure sensor (361).

7. A comprehensive hot water utilization system according to claim 1, characterized in that, The turbidity detection valve assembly (37) includes a turbidity detector (371), a sewage electric ball valve (372), and a main pipeline electric ball valve (373).

8. A comprehensive hot water utilization system according to claim 1, characterized in that, The cold source inlet of the mixing valve (38) is connected to a stop valve and connected to the demineralized water bypass (381), the heat source inlet is connected to a stop valve and connected to the micro-mist humidification pump group (35), and the outlet is connected to a stop valve and connected to the high-pressure micro-mist water supply main pipe (15).

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