A double-effect evaporator condensate water recovery device

Abstract

The application relates to the technical field of industrial wastewater treatment and resource recovery, in particular to a double-effect evaporator condensate water recovery device which comprises a steam condensate water tank mechanism, an evaporator condensate water tank mechanism, a water seal water dosing control mechanism and a water seal water reaction tank, the steam condensate water tank mechanism is used for collecting live steam condensate water generated by a first effect of a double-effect evaporator, the evaporator condensate water tank mechanism is used for collecting process condensate water generated by a second effect of the double-effect evaporator, and the water seal water dosing control mechanism is used for adjusting the pH value of the water seal water reaction tank. The application has the effect of realizing water resource and heat energy recovery of condensate water.

Description

Technical Field

[0001] This application relates to the technical field of industrial wastewater treatment and resource recovery, and in particular to a double-effect evaporator condensate recovery device. Background Technology

[0002] In the field of high-salinity wastewater treatment, such as chemical and environmental protection industries, double-effect evaporators are one of the core treatment devices. During operation, they generate a large amount of high-temperature, high-quality condensate, including live steam condensate and evaporator process condensate. Currently, many companies simply use this high-quality condensate for replenishing fire-fighting water tanks or circulating alkaline washing tanks—stages with low water quality requirements—or even discharge it directly, failing to realize its high-value utilization. This not only results in a serious waste of high-quality water resources, increasing the consumption of fresh tap water and softened water and production costs, but also means that a large amount of heat energy contained within it is not effectively recovered and is wasted. Mixed reuse also carries the risk of water quality fluctuations, which may affect the stability of critical water usage points.

[0003] Therefore, improvements are needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, realize the recovery of water resources and heat energy of condensate, and reduce production costs, this application provides a condensate recovery device for a double-effect evaporator.

[0005] The above-mentioned inventive objective of this application is achieved through the following technical solutions:

[0006] A double-effect evaporator condensate recovery device includes a steam condensate tank mechanism, an evaporator condensate tank mechanism, and a water seal water dosing control mechanism. The steam condensate tank mechanism is used to collect the condensate from the live steam generated in the first effect of the double-effect evaporator, the evaporator condensate tank mechanism is used to collect the process condensate generated in the second effect of the double-effect evaporator, and the water seal water dosing control mechanism is used to adjust the pH value of the water seal water reaction tank.

[0007] Optionally, the steam condensate tank mechanism includes a first stainless steel water tank, a first level gauge, and a first booster pump set. The first level gauge is mounted on the first stainless steel water tank, and the first booster pump set is connected to the outlet of the first stainless steel water tank.

[0008] Optionally, the outlet pipe of the first booster pump set is configured to selectively or in parallel deliver condensate to both a high-quality reclaimed water point and a low-quality reclaimed water point.

[0009] Optionally, the evaporator condensate tank mechanism includes a second stainless steel water tank, a second level gauge, and a second lift pump set. The second level gauge is mounted on the second stainless steel water tank, and the second lift pump set is connected to the outlet of the second stainless steel water tank.

[0010] Optionally, the outlet pipe of the second booster pump set is configured to deliver condensate to a high-quality reclaimed water point and a low-quality reclaimed water point, either selectively or in parallel.

[0011] Optionally, both the first and second booster pump sets adopt a redundant design with one in use and one on standby.

[0012] Optionally, the water seal water dosing control mechanism includes a pH meter and a metering pump, wherein the metering pump is linked to the pH meter.

[0013] Optionally, the metering pump is a NaOH dosing metering pump.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This enables the separation and grading of condensate for reuse, meaning that high-quality condensate is sent to water points with high water quality requirements, while low-quality condensate is sent to water points with low water quality requirements. Attached Figure Description

[0016] Figure 1 , one A plan view of the steam condensate tank mechanism of a double-effect evaporator condensate recovery device;

[0017] Figure 2 , one A plan view of the evaporator condensate tank mechanism of a double-effect evaporator condensate recovery device;

[0018] Figure 3 , one A plan view of the water seal water dosing control mechanism of a double-effect evaporator condensate recovery device;

[0019] Among them, 1. Steam condensate tank mechanism; 11. First stainless steel water tank; 12. First level gauge; 13. First lift pump group; 2. Evaporator condensate tank mechanism; 21. Second stainless steel water tank; 22. Second level gauge; 23. Second lift pump group; 3. Water seal water dosing control mechanism; 31. pH meter; 32. Metering pump. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0021] This application discloses a condensate recovery device for a double-effect evaporator.

[0022] Reference Figures 1-3A double-effect evaporator condensate recovery device includes a steam condensate tank mechanism 1, an evaporator condensate tank mechanism 2, and a water seal water dosing control mechanism 3. The steam condensate tank mechanism 1 is used to collect the condensate from the live steam generated in the first effect of the double-effect evaporator, the evaporator condensate tank mechanism 2 is used to collect the process condensate generated in the second effect of the double-effect evaporator, and the water seal water dosing control mechanism 3 is used to adjust the pH value of the water seal water reaction tank.

[0023] Furthermore, the steam condensate tank mechanism 1 includes a first stainless steel water tank 11, a first level gauge 12, and a first booster pump group 13. The first level gauge 12 is mounted on the first stainless steel water tank 11, and the first booster pump group 13 is connected to the outlet of the first stainless steel water tank 11.

[0024] Furthermore, the outlet pipe of the first booster pump unit 13 is configured to selectively or in parallel deliver condensate to both high-quality and low-quality reclaimed water points.

[0025] Furthermore, the evaporator condensate tank mechanism 2 includes a second stainless steel water tank 21, a second level gauge 22, and a second lift pump group 23. The second level gauge 22 is installed on the second stainless steel water tank 21, and the second lift pump group 23 is connected to the outlet of the second stainless steel water tank 21.

[0026] Furthermore, the outlet pipe of the second booster pump unit 23 is configured to selectively or in parallel deliver condensate to both high-quality and low-quality reclaimed water points.

[0027] Furthermore, both the first booster pump unit 13 and the second booster pump unit 23 adopt a redundant design with one in use and one on standby.

[0028] Furthermore, the water seal water dosing control mechanism 3 includes a pH meter 31 and a metering pump 32, with the metering pump 32 linked to the pH meter 31.

[0029] Furthermore, the metering pump 32 is a NaOH dosing metering pump 32.

[0030] The implementation principle of the double-effect evaporator condensate recovery device in this application embodiment is as follows: By setting up parallel steam condensate tank mechanism 1 and evaporator condensate tank mechanism 2, the high and low quality condensate generated by different stages of the double-effect evaporator can be collected and transported separately. Furthermore, by configuring a flexible diversion function on the outlet pipe of the booster pump group, the condensate can be sorted and reused according to its quality. Specifically, high-quality condensate is sent to water points with high water quality requirements, while low-quality condensate is sent to water points with low water quality requirements, thereby achieving high-value utilization of water resources and high-grade heat energy. Simultaneously, the pH value of the water seal reaction tank is automatically maintained stable through the water seal dosing control mechanism 3, ensuring the stable operation of subsequent treatment processes when receiving low-quality condensate. The entire device works collaboratively, ultimately achieving comprehensive benefits of water saving, energy saving, consumption reduction, and stable operation.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A condensate recovery device for a double-effect evaporator, characterized in that, It includes a steam condensate tank mechanism (1), an evaporator condensate tank mechanism (2), and a water seal water dosing control mechanism (3). The steam condensate tank mechanism (1) is used to collect the condensate from the live steam generated in the first effect of the double-effect evaporator. The evaporator condensate tank mechanism (2) is used to collect the process condensate generated in the second effect of the double-effect evaporator. The water seal water dosing control mechanism (3) is used to adjust the pH value of the water seal water reaction tank.

2. The condensate recovery device for a double-effect evaporator according to claim 1, characterized in that, The steam condensate tank mechanism (1) includes a first stainless steel water tank (11), a first level gauge (12) and a first booster pump group (13). The first level gauge (12) is installed on the first stainless steel water tank (11), and the first booster pump group (13) is connected to the outlet of the first stainless steel water tank (11).

3. The condensate recovery device for a double-effect evaporator according to claim 2, characterized in that, The outlet pipe of the first booster pump set (13) is configured to deliver condensate to a high-quality reclaimed water point and a low-quality reclaimed water point, either selectively or in parallel.

4. The condensate recovery device for a double-effect evaporator according to claim 2, characterized in that, The evaporator condensate tank mechanism (2) includes a second stainless steel water tank (21), a second level gauge (22), and a second lift pump group (23). The second level gauge (22) is installed on the second stainless steel water tank (21), and the second lift pump group (23) is connected to the outlet of the second stainless steel water tank (21).

5. A condensate recovery device for a double-effect evaporator according to claim 4, characterized in that, The outlet pipe of the second booster pump unit (23) is configured to deliver condensate to a high-quality reclaimed water point or a low-quality reclaimed water point, either selectively or in parallel.

6. The condensate recovery device for a double-effect evaporator according to claim 4, characterized in that, Both the first booster pump group (13) and the second booster pump group (23) adopt a redundant design with one in use and one on standby.

7. The condensate recovery device for a double-effect evaporator according to claim 1, characterized in that, The water seal water dosing control mechanism (3) includes a pH meter (31) and a metering pump (32), and the metering pump (32) is linked with the pH meter (31).

8. A condensate recovery device for a double-effect evaporator according to claim 7, characterized in that, The metering pump (32) is a NaOH dosing metering pump (32).

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