Hydrophobic tank condensate recovery apparatus

Abstract

The utility model relates to a kind of condensate water recovery equipment of drain tank, which is provided with drain tank in condensate water recovery equipment of drain tank;The inlet side of return pump group is connected to one side of drain tank;The inlet of plate heat exchanger is connected to the outlet side of return pump group;The inlet of desalted water tank is connected to the outlet of plate heat exchanger;Cooling water is connected on plate heat exchanger, and the condensate water extracted from drain tank by return pump group is cooled and then placed in desalted water tank, which realizes effective utilization of condensate water, and enables continuous use of condensate water in drain tank, solving the problem that condensate water is directly discharged through drain valve in existing condensate water recovery equipment for boiler, causing water resource waste.In addition, it is difficult to achieve continuous use through natural cooling, so the use of condensate water in drain tank is limited in some technical effects.

Description

Technical Field

[0001] The embodiments of this utility model relate to a condensate recovery device, and more particularly to a condensate recovery device for a condensate trap. Background Technology

[0002] In existing boiler condensate recovery equipment, the condensate is usually discharged directly through the steam trap after the steam heat is used up, resulting in a waste of water resources. In addition, even if the condensate is recovered, the temperature of the condensate in the steam trap is relatively high, above 60 degrees Celsius. If it is used directly in other cold water applications, the temperature is also relatively high. It is difficult to meet the requirements for continuous use through natural cooling, thus limiting the application of the condensate in the steam trap. Utility Model Content

[0003] The purpose of this invention is to provide a condensate recovery device that enables the effective utilization of condensate and allows for the continuous use of condensate in the condensate tank.

[0004] To achieve the above objectives, an embodiment of this utility model provides a condensate recovery device for a hydrophobic tank, comprising: A condensate drain tank is provided in the condensate drain tank condensate recovery equipment. A return water pump unit is connected to the inlet side of the return water pump unit on one side of the drain tank; A plate heat exchanger is connected to the inlet of the plate heat exchanger on the outlet side of the return water pump unit; A demineralized water tank is provided, with the outlet of the plate heat exchanger connected to the inlet of the demineralized water tank. Cooling water is connected to the plate heat exchanger to cool the condensate pumped from the condensate tank by the return water pump group and then place it into the demineralized water tank.

[0005] Furthermore, in the condensate recovery device of the condensate tank described in this utility model, one side of the condensate tank is connected to the inlet end of the sewage pump, the outlet end of the sewage pump is connected to the inlet of the shut-off valve, and the outlet of the shut-off valve is connected to the sewage tank.

[0006] Furthermore, in the condensate recovery equipment for the hydrophobic tank described in this utility model, the return water pump set further includes: The inlet valve of the first return water pump group is connected to one end of the inlet valve of the first return water pump group via a flange on one side of the condensate tank. The first flexible connection, the other end of the inlet valve of the first return water pump unit is connected to the inlet of the first flexible connection. The first return water pump unit is connected to the inlet of the first return water pump unit at the outlet of the first flexible connection; The first check valve is connected to the inlet of the first check valve at the outlet of the first return water pump set; The outlet of the first check valve is connected to one end of the inlet valve on the plate heat exchanger; The inlet valve of the second return water pump group is also connected to one end of the inlet valve of the second return water pump group via a flange on one side of the condensate tank; The second flexible connection, the other end of the inlet valve of the second return water pump unit is connected to the inlet of the second flexible connection. The second return water pump unit is connected to the inlet of the second return water pump unit at the outlet of the second flexible connection; The second check valve is connected to the inlet of the second check valve at the outlet of the second return water pump unit; The outlet of the second check valve is also connected to one end of the inlet valve on the plate heat exchanger; The other end of the inlet valve on the plate heat exchanger is connected to the inlet of the plate heat exchanger.

[0007] Furthermore, in the condensate recovery equipment of the condensate tank described in this utility model, the outlet of the plate heat exchanger is connected to the inlet of the outlet valve; the outlet of the outlet valve is connected to the inlet of the demineralized water tank.

[0008] Furthermore, in the condensate recovery equipment of the hydrophobic tank described in this utility model, an air vent valve is connected above the demineralized water tank.

[0009] Furthermore, in the condensate recovery device of the condensate tank described in this utility model, a cooling water inlet valve and a cooling water outlet valve are respectively connected to the plate heat exchanger; a cooling water inlet valve and a cooling water outlet valve are respectively connected to the cooling water inlet valve and the cooling water outlet valve.

[0010] Furthermore, in the condensate recovery device of the hydrophobic tank described in this utility model, the temperature of the cooling water inlet is ≤25℃.

[0011] Furthermore, in the condensate recovery device of the condensate tank described in this utility model, the water temperature of the condensate tank is ≤65℃.

[0012] Furthermore, in the condensate recovery device of the condensate tank described in this utility model, the temperature of the condensate in the condensate tank after heat exchange through the plate heat exchanger is ≤30℃.

[0013] Furthermore, in the condensate recovery device of the condensate tank described in this utility model, the condensate recovery device is connected to the boiler heat recovery device.

[0014] Compared with the prior art, the present invention adopts a method of setting up a condensate tank in the condensate recovery equipment; connecting one side of the condensate tank to the inlet side of the return water pump group; connecting the outlet side of the return water pump group to the inlet of the plate heat exchanger; connecting the outlet of the plate heat exchanger to the inlet of the demineralized water tank; and connecting cooling water to the plate heat exchanger to cool the condensate pump group drawn from the condensate tank before placing it in the demineralized water tank. This achieves effective utilization of the condensate and allows for continuous use of the condensate in the condensate tank. This solves the problem in existing boiler condensate recovery equipment where condensate is directly discharged through the steam trap, resulting in water waste. Furthermore, even if the condensate is recovered, the temperature of the condensate in the condensate tank is relatively high, above 60 degrees Celsius. Direct use in other cold water applications is also at a high temperature, making it difficult to achieve continuous use through natural cooling, thus limiting the application of the condensate in the condensate tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0017] The embodiments of this utility model relate to a condensate recovery device for a hydrophobic tank, such as... Figure 1 As shown, it includes: In this embodiment, a condensate tank 1 is provided in the condensate recovery device; the condensate tank 1 is used to hold the condensate after the boiler steam releases heat.

[0018] The condensate tank 1 is connected to the inlet side of the return water pump group 10 on one side; the return water pump group 10 is used to extract condensate from the condensate tank 1.

[0019] The outlet side of the return water pump group 10 is connected to the inlet of the plate heat exchanger 2; the plate heat exchanger 2 cools the condensate in the condensate tank 1.

[0020] The outlet of the plate heat exchanger 2 is connected to the inlet of the demineralized water tank 3; the demineralized water tank 3 is used to hold the condensate after cooling.

[0021] Cooling water is connected to the plate heat exchanger 2 to cool the condensate pumped from the condensate tank 1 by the return water pump 10, and then place it in the demineralized water tank 3. This enables the effective utilization of condensate and allows for continuous use of the condensate in the condensate tank 1. This solves the problem of existing boiler condensate recovery equipment directly discharging condensate through the steam trap, resulting in water waste. Furthermore, even if the condensate is recovered, the temperature of the condensate in the condensate tank is relatively high, above 60 degrees Celsius. Direct use in other cold water applications would also be too high, making it difficult to achieve continuous use through natural cooling. Therefore, this limits the technical effectiveness of using the condensate in the condensate tank 1.

[0022] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, the inlet of the sewage pump 4 is connected to one side of the condensate tank 1, and the inlet of the shut-off valve 5 is connected to the outlet of the sewage pump 4. The outlet of the shut-off valve 5 is connected to the sewage tank 6. The sewage pump 4 is used to discharge sewage from the condensate tank 1, and the shut-off valve 5 is used to close the sewage discharge pipe. The sewage tank 6 is used to collect sewage for centralized treatment.

[0023] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, the return water pump set 10 also includes: One side of the condensate tank 1 is connected to one end of the inlet valve 11 of the first return water pump unit via a flange; The other end of the inlet valve 11 of the first return water pump group is connected to the inlet of the first flexible connection 12; the inlet valve 11 of the first return water pump group, the first flexible connection 12, and the first return water pump group 13 constitute the structure of the first return water pump group.

[0024] The outlet of the first flexible connection 13 is connected to the inlet of the first return water pump group 13; the first one-way valve 14 enables the unidirectional flow of condensate.

[0025] The outlet of the first return water pump set 13 is connected to the inlet of the first check valve 14; The outlet of the first check valve 14 is connected to one end of the inlet valve 21 on the plate heat exchanger 2; On one side of the condensate tank 1, it is also connected to one end of the inlet valve 15 of the second return water pump unit via a flange; The other end of the inlet valve 15 of the second return water pump unit is connected to the inlet of the second flexible connection 16; the outlet of the second flexible connection 16 is connected to the inlet of the second return water pump unit 17. The outlet of the second return water pump group 17 is connected to the inlet of the second check valve 18; the inlet valve 15 of the second return water pump group, the second flexible connection 16, and the second return water pump group 17 constitute the structure of the second return water pump group, thereby ensuring that the return water pump group 10 of the condensate recovery equipment in the condensate tank in this embodiment has a backup function.

[0026] The outlet of the second check valve 18 is also connected to one end of the inlet valve 21 on the plate heat exchanger 2; The other end of the inlet valve 21 on plate heat exchanger 2 is connected to the inlet of plate heat exchanger 2. The second one-way valve 18 also serves the function of unidirectional flow.

[0027] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, the outlet of the plate heat exchanger 2 is connected to the inlet of the outlet valve 22; the outlet of the outlet valve 22 is connected to the inlet of the demineralized water tank 3.

[0028] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, an air vent valve 7 is connected above the demineralized water tank 3. The air vent valve 7 is used to purge air during the condensate injection process.

[0029] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, a cooling water inlet valve 23 and a cooling water outlet valve 24 are connected to the plate heat exchanger 2, respectively; a cooling water inlet valve 23 and a cooling water outlet valve 24 are connected to the cooling water inlet valve 23 and the cooling water outlet valve 24, respectively. The cooling water inlet valve 23 and the cooling water outlet valve 24 are used to switch the water inlet and outlet of the plate heat exchanger 2.

[0030] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, the temperature of the cooling water inlet is ≤25℃.

[0031] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, the water temperature in the condensate tank 3 is ≤65℃. The condensate temperature inside the condensate tank 3 is relatively high, so it cannot be used in a normal temperature environment.

[0032] To achieve the above-mentioned technical effects, the condensate recovery device for the hydrophobic tank in this embodiment, such as... Figure 1 As shown, the temperature of the condensate in the condensate tank 3 after heat exchange through the plate heat exchanger 2 is ≤30℃.

[0033] To achieve the above-mentioned technical effects, the condensate recovery device in the condensate tank of this embodiment is connected to the boiler heat recovery device.

[0034] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A condensate recovery device for a hydrophobic tank, characterized in that, include: A condensate drain tank is provided in the condensate drain tank condensate recovery equipment. A return water pump unit is connected to the inlet side of the return water pump unit on one side of the drain tank; A plate heat exchanger is connected to the inlet of the plate heat exchanger on the outlet side of the return water pump unit; A demineralized water tank is provided, with the outlet of the plate heat exchanger connected to the inlet of the demineralized water tank. Cooling water is connected to the plate heat exchanger to cool the condensate pumped from the condensate tank by the return water pump group and then place it into the demineralized water tank.

2. The condensate recovery equipment for the hydrophobic tank according to claim 1, characterized in that, One side of the drainage tank is connected to the inlet of the sewage pump, the outlet of the sewage pump is connected to the inlet of the shut-off valve, and the outlet of the shut-off valve is connected to the drainage tank.

3. The condensate recovery equipment for the hydrophobic tank according to claim 1, characterized in that, The aforementioned return water pump set also includes: The inlet valve of the first return water pump group is connected to one end of the inlet valve of the first return water pump group via a flange on one side of the condensate tank. The first flexible connection is provided, with the other end of the inlet valve of the first return water pump unit connected to the inlet of the first flexible connection. The first return water pump unit is connected to the inlet of the first return water pump unit at the outlet of the first flexible connection; The first check valve is connected to the inlet of the first check valve at the outlet of the first return water pump set; The outlet of the first check valve is connected to one end of the inlet valve on the plate heat exchanger; The inlet valve of the second return water pump group is also connected to one end of the inlet valve of the second return water pump group via a flange on one side of the condensate tank; The second flexible connection is connected to the inlet of the second flexible connection at the other end of the inlet valve of the second return water pump unit. The second return water pump unit is connected to the inlet of the second return water pump unit at the outlet of the second flexible connection; The second check valve is connected to the inlet of the second check valve at the outlet of the second return water pump unit; The outlet of the second check valve is also connected to one end of the inlet valve on the plate heat exchanger; The other end of the inlet valve on the plate heat exchanger is connected to the inlet of the plate heat exchanger.

4. The condensate recovery equipment for the hydrophobic tank according to claim 1, characterized in that, The outlet of the plate heat exchanger is connected to the inlet of the outlet valve; the outlet of the outlet valve is connected to the inlet of the demineralized water tank.

5. The condensate recovery equipment for the hydrophobic tank according to claim 1, characterized in that, An air vent valve is connected above the demineralized water tank.

6. The condensate recovery equipment for the hydrophobic tank according to claim 1, characterized in that, A cooling water inlet valve and a cooling water outlet valve are connected to the plate heat exchanger respectively; a cooling water inlet valve and a cooling water outlet valve are connected to the cooling water inlet valve and the cooling water outlet valve respectively.

7. The condensate recovery equipment for the hydrophobic tank according to claim 6, characterized in that, The temperature of the cooling water inlet is ≤25℃.

8. The condensate recovery equipment for the hydrophobic tank according to claim 2, characterized in that, The water temperature in the condensate tank is ≤65℃.

9. The condensate recovery equipment for the hydrophobic tank according to claim 8, characterized in that, The temperature of the condensate in the condensate tank after heat exchange through the plate heat exchanger is ≤30℃.

10. The condensate recovery device for the hydrophobic tank according to any one of claims 1-9, characterized in that, The condensate recovery equipment in the condensate tank is connected to the boiler heat recovery device.

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