A condensate water recycling system

Abstract

The present application relates to condensate water recycling technical field, and disclose a kind of condensate water recycling system, comprising: condensate water tank, the water inlet end of the upper surface of condensate water tank is connected with condensing water inlet pipe;Cold storage tank, condensate water pump is arranged between the water inlet end of the cold storage tank and the water outlet end of the condensate water tank;Raw water tank, filter, water replenishing pump are arranged between the water inlet end of the raw water tank and the water outlet end of the cold storage tank;Water pipe, the water outlet end of the water pipe is communicated with the water replenishing pipe between the water replenishing pump and the raw water tank, the condensate water recycling system, by condensate water tank, cold storage tank and water pipe cooperation, condensate water can be mixed with tap water, while using temperature sensor and electric valve and flow switch cooperation, the temperature of mixed fluid can be controlled, to ensure that the temperature of mixed fluid meets the requirement of pure water system to pure water temperature, while reducing tap water consumption, heat consumption can be reduced.

Description

Technical Field

[0001] This invention relates to the field of condensate water reuse technology, specifically a condensate water reuse system. Background Technology

[0002] Condensate is liquid water formed after water vapor liquefies. The initial temperature of condensate can reach about 60℃. Some boiler room equipment can produce a large amount of condensate during operation.

[0003] The condensate formed by steam liquefaction in energy centers such as boiler rooms can generally be supplied to thermal power plants. However, since thermal power plants no longer recycle it, the existing condensate is temporarily stored in idle cold storage tanks. Once the condensate reaches the set water level, it is directly discharged into the sewage pipes, resulting in a waste of condensate resources. On the other hand, some pure water systems consume a large amount of tap water. The pure water temperature required by pure water systems is generally 28-30℃, while the temperature of tap water is lower than that required by pure water systems. Therefore, the tap water needs to be heated, which consumes a large amount of water resources and heat energy. Summary of the Invention

[0004] To address the existing problems of condensate being temporarily stored in unused cold storage tanks and then directly discharged into sewage pipes after reaching a set water level, resulting in wasted condensate resources; and the fact that some pure water systems consume large amounts of tap water, requiring heating and thus consuming significant water and heat energy, this invention provides the following technical solution: a condensate recycling system, comprising:

[0005] A condensate tank, wherein the water inlet end on the upper surface of the condensate tank is connected to a condensate inlet pipe;

[0006] A cold storage tank, wherein a condensate pump is provided between the water inlet of the cold storage tank and the water outlet of the condensate tank;

[0007] A raw water tank is provided, and a filter and a water replenishment pump are provided between the inlet end of the raw water tank and the outlet end of the cold storage tank.

[0008] A water guide pipe is provided, the outlet end of which is connected to the water supply pipe between the water supply pump and the raw water tank. An electric valve and a flow switch are provided between the water supply pump and the outlet end of the water guide pipe. A temperature sensor is provided between the outlet end of the water guide pipe and the raw water tank.

[0009] A pure water system, wherein the inlet of the pure water system is connected to the outlet of the raw water tank.

[0010] Furthermore, a butterfly valve is provided between the cold storage tank and the condensate tank, and a butterfly valve is provided between the raw water tank and the cold storage tank.

[0011] Furthermore, the condensate recycling system is equipped with a control box, which is electrically connected to the electric valve, flow switch and temperature sensor.

[0012] Furthermore, it also includes a tap water inlet pipe, and the interior of the condensate tank is equipped with a heat-conducting pipe. The inlet end of the heat-conducting pipe is connected to the tap water inlet pipe, and the outlet end is connected to the water guide pipe. The tap water inlet pipe is equipped with a water pump.

[0013] Furthermore, an air-cooled fin is provided between the cold storage tank and the condensate tank, and connecting pipes are provided at both ends of the air-cooled fins. A reversing valve is provided at one end of the connecting pipe located at the water inlet end of the air-cooled fins.

[0014] Furthermore, it also includes an insulated water storage tank, the inlet of which is connected to the water pipe, and a reversing valve is provided at the connection between the insulated water storage tank and the water pipe.

[0015] Furthermore, the surface of the insulated water storage tank is provided with an output pipe, which is connected to the water guide pipe, and a water replenishment pump is provided in the output pipe.

[0016] Furthermore, the inlet side of the reversing valve located inside the water guide pipe is equipped with a flow switch and a temperature sensor.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This condensate recycling system, through the cooperation of a condensate tank, a cold storage tank and a water pipe, can mix condensate with tap water. At the same time, by using a temperature sensor in conjunction with an electric valve and a flow switch, the temperature of the mixed fluid can be controlled to ensure that the temperature of the mixed fluid meets the requirements of the pure water system. This reduces tap water consumption and heat energy consumption.

[0019] 2. This condensate recycling system heats the tap water by installing a heat pipe in the condensate tank and connecting the heat pipe to the tap water inlet pipe and the water outlet pipe. By increasing the temperature of the tap water before mixing, the heat loss of the condensate can be reduced. At the same time, after cooling the condensate, the proportion of condensate during mixing can be increased, thereby improving the utilization rate of the condensate. Attached Figure Description

[0020] Figure 1 The condensate recycling system process of this invention Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the internal structure of the condensate tank of the present invention;

[0022] Figure 3 The condensate recycling system process of this invention Figure 2 .

[0023] In the diagram: 1. Condensate tank; 2. Condensate inlet pipe; 3. Tap water inlet pipe; 31. Inlet pump; 32. Heat pipe; 4. Water pipe; 5. Cold storage tank; 6. Condensate pump; 7. Reversing valve; 8. Air-cooled fins; 9. Raw water tank; 10. Butterfly valve; 11. Filter; 12. Make-up water pump; 13. Electric valve; 14. Flow switch; 15. Temperature sensor; 16. Control box; 17. Insulated water storage tank; 171. Output pipe; 18. Pure water system. Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] An example of this condensate recycling system is as follows: Example

[0026] Please see Figure 1 A condensate recycling system, comprising:

[0027] Condensate tank 1, with the water inlet end on the upper surface of condensate tank 1 connected to condensate inlet pipe 2.

[0028] A cold storage tank 5 is provided with a condensate pump 6 between the inlet end of the cold storage tank 5 and the outlet end of the condensate tank 1. A butterfly valve 10 is provided between the cold storage tank 5 and the condensate tank 1. A butterfly valve 10 is also provided between the raw water tank 9 and the cold storage tank 5. The flow of condensate is regulated by the butterfly valve 10.

[0029] The raw water tank 9 is equipped with a filter 11 and a water supply pump 12 between the inlet end of the raw water tank 9 and the outlet end of the cold storage tank 5. The filter 11 is used to filter the condensate, and the water supply pump 12 is used to transport the condensate.

[0030] Water pipe 4 is connected to the water supply pipe between water supply pump 12 and raw water tank 9. Electric valve 13 and flow switch 14 are provided between water supply pump 12 and water supply pipe 4. Temperature sensor 15 is provided between water supply pipe 4 and raw water tank 9. Control box 16 is provided in the condensate recycling system. Control box 16 is electrically connected to electric valve 13, flow switch 14 and temperature sensor 15. Electric valve 13 and flow switch 14 are electrically controlled by control box 16.

[0031] Pure water system 18, the inlet of pure water system 18 is connected to the outlet of raw water tank 9. Example

[0032] Please see Figures 2-3 A condensate recycling system, comprising:

[0033] Condensate tank 1, with the water inlet end on the upper surface of condensate tank 1 connected to condensate inlet pipe 2.

[0034] A cold storage tank 5 is provided with a condensate pump 6 between the water inlet end of the cold storage tank 5 and the water outlet end of the condensate tank 1. An air-cooled fin 8 is provided between the cold storage tank 5 and the condensate tank 1. Connecting pipes are provided on both sides of the air-cooled fin 8. A reversing valve 7 is provided at the end of the connecting pipe located at the water inlet end of the air-cooled fin 8. The reversing valve 7 can be used to adjust the flow direction of the condensate. The air-cooled fin 8 can be used to cool the condensate.

[0035] The raw water tank 9 is equipped with a filter 11 and a water replenishment pump 12 between the inlet end of the raw water tank 9 and the outlet end of the cold storage tank 5.

[0036] Water pipe 4, the outlet end of water pipe 4 is connected to the water supply pipe between water supply pump 12 and raw water tank 9, an electric valve 13 and a flow switch 14 are provided between water supply pump 12 and the outlet end of water pipe 4, and a temperature sensor 15 is provided between the outlet end of water pipe 4 and raw water tank 9.

[0037] The tap water inlet pipe 3 and the condensate tank 1 are equipped with a heat conduction pipe 32. The inlet end of the heat conduction pipe 32 is connected to the tap water inlet pipe 3, and the outlet end is connected to the water guide pipe 4. The tap water inlet pipe 3 is equipped with a water pump 31. The tap water can be heated by the tap water inlet pipe 3 and the heat conduction pipe 32, and the condensate can be cooled at the same time to reduce the loss of heat from the condensate.

[0038] The insulated water storage tank 17 has its inlet end connected to the water pipe 4. A reversing valve 7 is provided at the connection between the insulated water storage tank 17 and the water pipe 4. The insulated water storage tank 17 can buffer the heated tap water. The surface of the insulated water storage tank 17 is provided with an output pipe 171, which is connected to the water pipe 4. A water replenishment pump 12 is provided in the output pipe 171. The inlet side of the reversing valve 7 inside the water pipe 4 is provided with a flow switch 14 and a temperature sensor 15, which are used to control and regulate the heating temperature of the tap water.

[0039] Pure water system 18, the inlet of pure water system 18 is connected to the outlet of raw water tank 9.

[0040] Operating principle of condensate recycling system:

[0041] After condensate is generated, it is transported to condensate tank 1 via condensate inlet pipe 2, then to cold storage tank 5 via condensate pump 6, and then to raw water tank 9 via makeup water pump 12. At the same time, tap water is transported via water pipe 4 to mix the tap water with the condensate. Temperature sensor 15 detects the temperature of the mixed fluid and transmits the detection result to control box 16. Control box 16 controls electric valve 13 and flow switch 14 to control the temperature of the mixed fluid, keeping it between 28-30℃. The mixed fluid is then transported to raw water tank 9, which supplies pure water to pure water system 18.

[0042] Before the tap water is delivered to the water pipe 4, the tap water is introduced into the heat pipe 32 through the tap water inlet pipe 3 and the water pump 31. The heat of the condensate in the condensate tank 1 is used to heat the tap water in the heat pipe 32. The heated tap water enters the water pipe 4 and can be directly delivered to the position where it mixes with the condensate through the water pipe 4. Alternatively, the heated tap water can be stored in the heat-insulated water storage tank 17 first through the reversing valve 7. When using the tap water, the tap water in the heat-insulated water storage tank 17 is delivered to the position where it mixes with the condensate through the output pipe 171 and the water replenishment pump 12.

[0043] After heating the tap water using the condensate tank 1, the temperature of the tap water is detected by the temperature sensor 15 in the water pipe 4. The flow rate of the tap water in the heat pipe 32 can be controlled by the water pump 31 and the flow switch 14, thereby controlling the water temperature of the tap water. Depending on the water temperature and flow rate of the tap water, the tap water can be directly mixed and transported or stored in the insulated water storage tank 17 for later use.

[0044] When using the condensate tank 1 to heat tap water, if the temperature of the condensate output from the condensate tank 1 is still very high, the condensate can be brought into contact with the air-cooled fins 8 through the reversing valve 7 to dissipate heat and cool the condensate, so as to ensure that the water temperature after the condensate and tap water are mixed is controlled at 28-30℃.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A condensate water recycling system, characterized in that, include: Condensate tank (1), the water inlet end of the upper surface of the condensate tank (1) is connected to the condensate inlet pipe (2); A cold storage tank (5) is provided with a condensate pump (6) between the water inlet of the cold storage tank (5) and the water outlet of the condensate tank (1). A raw water tank (9) is provided with a filter (11) and a water replenishment pump (12) between the water inlet of the raw water tank (9) and the water outlet of the cold storage tank (5). Water pipe (4), the outlet end of the water pipe (4) is connected to the water supply pipe between the water supply pump (12) and the raw water tank (9), an electric valve (13) and a flow switch (14) are provided between the water supply pump (12) and the outlet end of the water pipe (4), and a temperature sensor (15) is provided between the outlet end of the water pipe (4) and the raw water tank (9). A pure water system (18) is provided, wherein the inlet of the pure water system (18) is connected to the outlet of the raw water tank (9); The system includes a tap water inlet pipe (3), a heat-conducting pipe (32) inside the condensate tank (1), the inlet end of the heat-conducting pipe (32) being connected to the tap water inlet pipe (3), and the outlet end being connected to the water guide pipe (4). A water pump (31) is installed in the tap water inlet pipe (3). An air-cooled fin (8) is provided between the cold storage tank (5) and the condensate tank (1). Connecting pipes are provided on both sides of the air-cooled fin (8). The connecting pipes are located within the air-cooled... A reversing valve (7) is provided at one end of the water inlet of the fin (8); it also includes a heat-insulating water storage tank (17), the water inlet of the heat-insulating water storage tank (17) is connected to the water guide pipe (4), and a reversing valve (7) is provided at the connection between the heat-insulating water storage tank (17) and the water guide pipe (4); the surface of the heat-insulating water storage tank (17) is provided with an output pipe (171), the output pipe (171) is connected to the water guide pipe (4), and a water replenishment pump (12) is provided in the output pipe (171).

2. The condensate recycling system according to claim 1, wherein, A butterfly valve (10) is provided between the cold storage tank (5) and the condensate tank (1), and a butterfly valve (10) is provided between the raw water tank (9) and the cold storage tank (5).

3. The condensate recycling system according to claim 1, wherein, The condensate recycling system is equipped with a control box (16), which is electrically connected to the electric valve (13), flow switch (14) and temperature sensor (15).

4. The condensate recycling system according to claim 1, wherein, The water pipe (4) is located inside the reversing valve (7), which is equipped with a flow switch (14) and a temperature sensor (15) on the water inlet side.

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