Steam waste heat heating system of electrogalvanizing evaporator
By installing flow sensors and valves in the electro-galvanized evaporator system, automatic or manual steam regulation can be achieved, allowing excess steam to be supplied to the heating system, thus solving the problem of steam waste and realizing efficient steam utilization and energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BENGANG PUXIANG COLD ROLLED SHEET CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
The evaporator of the electro-galvanizing unit wastes steam due to unstable steam consumption during the production process, especially when the steam supply is insufficient, resulting in energy waste.
Design a waste heat heating system for electro-galvanized evaporators. By setting up flow sensors and valves, the system can automatically or manually regulate the steam, supplying excess steam to the plant's heating system and avoiding waste.
It achieves efficient utilization of steam, reduces production steam consumption, saves energy, ensures stable operation of the evaporator, and provides heating function.
Smart Images
Figure CN224201752U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste heat utilization technology of electro-galvanized pipelines, and in particular to a steam waste heat heating system for electro-galvanized evaporators. Background Technology
[0002] The evaporator in an electroplating zinc unit evaporates water from the circulating zinc sulfate solution to increase the zinc sulfate concentration. During production, the steam consumption of the evaporator fluctuates frequently due to variations in product specifications and production speed. To ensure stable evaporator operation, the steam supply flow rate must be no less than 15 t / h. When the unit's steam consumption drops below 15 t / h, significant steam leakage occurs, resulting in energy waste. Utility Model Content
[0003] In response to the aforementioned technical problems, a waste heat heating system for electroplated galvanized evaporators is provided.
[0004] The technical means adopted in this utility model are as follows:
[0005] A waste heat heating system for an electro-galvanizing evaporator includes a first flow sensor installed on the steam supply pipeline of the electro-galvanizing unit, as well as a main steam pipeline and a branch steam pipeline. The main steam pipeline is connected to the evaporator of the electro-galvanizing unit, and the branch steam pipeline is connected to the heating distribution cylinder of the plant area through a second valve. The output end of the heating distribution cylinder of the plant area is connected to multiple on-site heating facilities.
[0006] Furthermore, a first valve is installed on the main steam pipeline, and the first valve is a normally open valve.
[0007] Furthermore, the steam distribution pipeline serves as the air supply pipeline for the heating distribution cylinder, and the main input pipeline of the heating distribution cylinder is the heating steam pipeline. A second flow sensor and a third valve are installed on the heating steam pipeline.
[0008] Furthermore, the third valve is a normally open valve.
[0009] The present invention has the following advantages: The present invention system can save a lot of production steam consumption, and transfer the excess steam to the heating system to avoid steam waste. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 This is a system diagram of the present utility model.
[0012] In the diagram: 1. First flow sensor; 2. First valve; 3. Evaporator of electro-galvanized unit; 4. Second valve; 5. Heating distribution cylinder; 6. Third valve; 7. Second flow sensor. Detailed Implementation
[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0014] like Figure 1 As shown in the figure, this utility model embodiment discloses a waste heat heating system for an electro-galvanizing evaporator, including a first flow sensor 1 installed on the steam supply pipeline of the electro-galvanizing unit, as well as a main steam pipeline and a branch steam pipeline. The main steam pipeline is connected to the evaporator 3 of the electro-galvanizing unit, and the branch steam pipeline is connected to the heating distribution cylinder 5 of the plant area through a second valve 4. The output end of the heating distribution cylinder of the plant area is connected to multiple on-site heating facilities.
[0015] Furthermore, a first valve 2 is installed on the main steam pipeline, and the first valve is a normally open valve.
[0016] Furthermore, the steam distribution pipeline serves as the air supply pipeline for the heating distribution cylinder, and the main input pipeline of the heating distribution cylinder is the heating steam pipeline. A second flow sensor 7 and a third valve 6 are installed on the heating steam pipeline.
[0017] Furthermore, the third valve is a normally open valve.
[0018] In actual use, the most primitive means can be used to switch the pipeline. Specifically, the staff monitors the data of the first flow sensor 1 to know whether the supplied steam flow exceeds the steam supply flow. If it does, the opening of the second valve 4 is adjusted to ensure that some steam can enter the heating distribution cylinder 5 in the plant area as a supplementary gas for the heating distribution cylinder.
[0019] The above-described embodiments are sufficient to solve the technical problems that this utility model aims to address.
[0020] As an optional and expandable implementation method, the unit can also be automatically controlled by setting up automation. Specifically, a PLC programmable controller is set up and electrically connected to the first flow sensor 1, the second valve 4, the second flow sensor 7 and the third valve 6 respectively. According to the steam consumption of the unit, the production steam flow rate obtained by the first flow sensor 1 is compared with the steam consumption of the evaporator (the steam consumption of the unit) in real time. When the supplied steam flow rate is greater than the evaporator demand, the second valve 4 is opened to pressurize the heating system.
[0021] As a further implementation of the above optional implementation method, the PLC programmable controller controls the third valve to close to a certain degree based on the data from the first flow sensor and the second flow sensor, so as to ensure that the steam pressure in the gas cylinder is consistent with the set value and output stable heating steam to the outside.
[0022] Of course, as an optional implementation method and a further optional implementation method described above, the second valve 4 and the third valve 6 are electric valves.
[0023] The first flow sensor 1, the second valve 4, the second flow sensor 7, the third valve 6, and the PLC programmable controller are all housed in an electrical control box, which is located in front of the local panel.
[0024] As an optional implementation of remote control, the PLC programmable controller may be equipped with a remote Internet module.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A waste heat heating system for an electroplated zinc evaporator, characterized in that, It includes a first flow sensor installed on the steam supply pipeline of the electro-galvanizing unit, as well as a main steam pipeline and a branch steam pipeline. The main steam pipeline is connected to the evaporator of the electro-galvanizing unit, and the branch steam pipeline is connected to the heating distribution cylinder of the plant area through a second valve. The output end of the heating distribution cylinder of the plant area is connected to multiple on-site heating facilities.
2. The waste heat heating system for electroplating evaporators according to claim 1, characterized in that, A first valve is installed on the main steam pipeline. The first valve is a normally open valve.
3. The waste heat heating system for electroplating evaporators according to claim 1, characterized in that, The steam distribution pipeline serves as the air supply pipeline for the heating distribution cylinder, and the main input pipeline of the heating distribution cylinder is the heating steam pipeline. A second flow sensor and a third valve are installed on the heating steam pipeline.
4. The waste heat heating system for electroplating evaporators according to claim 3, characterized in that, The third valve is a normally open valve.