Condensate water recycling system for liquid chlorine vaporizer
By combining the condensate recycling system of the liquid chlorine vaporizer with the steam desuperheating and pressure reducing device, the problems of increased equipment investment and energy consumption during high-load operation of the liquid chlorine vaporizer are solved, and the condensate recycling and energy-saving effects are achieved.
Patent Information
- Application Number
- CN202520218241.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In existing technologies, liquid chlorine vaporizers require additional pure water pipelines and energy consumption when operating under high loads, and all condensate needs to be discharged, leading to increased equipment investment and energy consumption.
By combining the steam condensate recycling system with the steam desuperheating and pressure reducing device, the condensate is pumped into the steam desuperheating and pressure reducing device through a metering pump, and used to replace pure water, thus realizing the recycling of condensate.
It reduces equipment investment costs, decreases energy consumption, is safe and convenient to operate, and solves the problem of condensate treatment.
Smart Images
Figure CN223740562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid chlorine vaporization technology, specifically to a liquid chlorine vaporizer condensate recycling system. Background Technology
[0002] During the operation of a liquid chlorine vaporizer, low-pressure steam is widely used to vaporize liquid chlorine. While this process is effective, it inevitably produces a large amount of steam condensate. To ensure the normal operation of the equipment and the cleanliness of the environment, this condensate needs to be effectively collected and treated. Typically, the collected condensate is transported to a designated location for further treatment or discharge via a submersible pump.
[0003] The problem becomes more complex when the demand for liquid chlorine vaporization is high. First, the amount of steam condensate generated increases significantly, requiring more energy to drive the submersible pump, thus increasing operating costs. Second, the saturated steam pressure within the enterprise is typically high, generally greater than 0.1 MPa (gauge pressure), while the steam pressure used in the liquid chlorine vaporizer is strictly limited to no more than 0.1 MPa. This necessitates desuperheating and depressurization treatment before the steam enters the liquid chlorine vaporizer. Therefore, to achieve this, the enterprise needs to add a dedicated pure water pipeline. This modification not only increases the equipment investment cost but also further increases overall energy consumption because the desuperheating and depressurization process itself consumes energy.
[0004] In summary, how to vaporize liquid chlorine more energy-efficiently using a liquid chlorine vaporizer is a direction that urgently needs improvement. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a liquid chlorine vaporizer condensate recycling system. The system pumps the steam condensate into the steam desuperheating and depressurization device to replace the pure water required by the steam desuperheating and depressurization device. This solves the problem that enterprises need to add pure water pipelines to desuperheat and depressurize the steam and that all the steam condensate needs to be pumped away. The system has good energy-saving effect, safe and convenient operation, and low equipment investment.
[0006] The technical solution of this utility model is as follows:
[0007] A liquid chlorine vaporizer condensate recycling system is provided, wherein the liquid chlorine vaporizer is equipped with a steam feed pipeline, a liquid chlorine feed pipeline, a chlorine outlet pipeline, and a steam condensate outlet pipeline. A steam desuperheating and pressure reducing device is connected to the steam feed pipeline, and the steam inlet of the steam desuperheating and pressure reducing device is connected to a steam pipeline. The steam condensate outlet pipeline is connected to a condensate storage tank, and a shut-off valve and a drain valve are installed on the steam condensate outlet pipeline. A metering pump is connected to the lower part of the condensate storage tank through a pipeline, and the outlet of the metering pump is connected to the water inlet of the steam desuperheating and pressure reducing device through the condensate recycling pipeline.
[0008] Preferably, the condensate storage tank is equipped with a level gauge and a submersible pump, and the outlet of the submersible pump is connected to a steam condensate discharge pipeline.
[0009] Preferably, a check valve and a ball valve are installed on the steam condensate discharge pipeline.
[0010] Preferably, a pressure gauge is installed on the steam condensate discharge pipeline.
[0011] Preferably, the condensate storage tank is equipped with two submersible pumps, which are connected in parallel to the steam condensate discharge pipeline.
[0012] Preferably, the condensate storage tank and the metering pump are both placed in an underground pool and separated by a partition wall.
[0013] Preferably, a check valve and a ball valve are installed on the condensate reuse pipeline.
[0014] Preferably, a pressure gauge is installed on the condensate recycling pipeline.
[0015] Preferably, there are two metering pumps, which are connected in parallel to the condensate storage tank via pipelines, and are also connected in parallel to the condensate reuse pipeline.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] This utility model's liquid chlorine vaporizer condensate recycling system pumps steam condensate into a steam desuperheating and depressurization device, replacing the pure water required by the device. This solves the problem of enterprises needing to add pure water pipelines for steam desuperheating and depressurization, and the need to remove all steam condensate. It has good energy-saving effect, safe and convenient operation, and low equipment investment. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the condensate recycling system of the liquid chlorine vaporizer of this utility model.
[0019] In the diagram, 1. Liquid chlorine vaporizer; 101. Steam feed line; 102. Liquid chlorine feed line; 103. Chlorine discharge line; 104. Steam condensate discharge line; 2. Steam desuperheating and pressure reducing device; 201. Steam line; 3. Condensate storage tank; 4. Shut-off valve; 5. Steam trap; 6. Metering pump; 7. Condensate reuse line; 8. Submersible pump; 9. Steam condensate discharge line; 10. Check valve; 11. Ball valve; 12. Pressure gauge; 13. Underground tank; 14. Partition wall. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.
[0021] Example 1
[0022] like Figure 1 As shown, this embodiment provides a liquid chlorine vaporizer condensate recycling system. The liquid chlorine vaporizer 1 is equipped with a steam feed line 101, a liquid chlorine feed line 102, a chlorine outlet line 103, and a steam condensate outlet line 104. A steam desuperheating and pressure reducing device 2 is connected to the steam feed line 101. The steam inlet of the steam desuperheating and pressure reducing device 2 is connected to a steam line 201. The steam condensate outlet line 104 is connected to a condensate storage tank 3, and a shut-off valve 4 and a drain valve 5 are installed on the steam condensate outlet line 104. Two metering pumps 6 are connected in parallel through pipelines at the bottom of the condensate storage tank 3. One metering pump 6 is in use and the other is on standby. The outlets of the two metering pumps 6 are respectively connected to the water inlet of the steam desuperheating and pressure reducing device 2 through a condensate recycling line 7. A check valve 10, a pressure gauge 12, and a ball valve 11 are installed on the condensate recycling line 7. The condensate storage tank 3 and the metering pump 6 are both placed in the underground pool 13 and separated by a partition wall 14. The partition wall 14 can prevent water from flowing to the metering pump 6 and causing flooding or scalding accidents when the condensate storage tank 3 overflows or leaks.
[0023] Working principle:
[0024] During production, 0.4 MPa saturated steam from the pipe gallery is converted to 0.1 MPa saturated steam after passing through the steam desuperheating and pressure reducing device 2. This saturated steam then enters the liquid chlorine vaporizer 1 to heat the liquid chlorine. The -18℃ liquid chlorine enters the vaporizer 1, exchanges heat with the saturated steam, absorbs heat, and vaporizes into chlorine gas before entering the next device. The steam, on the other hand, is condensed and releases heat to become steam condensate at a temperature of 95-98℃. The steam condensate is temporarily stored in the condensate storage tank 3 in the underground pool 13 via the steam condensate outlet pipeline 104. The condensate storage tank 3 has an opening at the bottom, connected via a pipeline to the metering pump 6 on the other side of the partition wall 14 of the underground pool 13. After metering, the condensate is pumped into the steam desuperheating and pressure reducing device 2 to generate 0.1 MPa steam.
[0025] The liquid chlorine vaporizer condensate recycling system in this embodiment pumps the steam condensate into the steam desuperheating and depressurization device 2, replacing the pure water required by the steam desuperheating and depressurization device 2. This solves the problem that enterprises need to add pure water pipelines to desuperheat and depressurize steam, and that all steam condensate needs to be pumped away. It has good energy-saving effect, safe and convenient operation, and low equipment investment.
[0026] Example 2
[0027] Based on Example 1, such as Figure 1 As shown, the condensate storage tank 3 is equipped with a level gauge and two submersible pumps 8. The outlets of the two submersible pumps 8 are connected to a steam condensate discharge pipeline 9, with one submersible pump 8 in operation and the other on standby. The steam condensate discharge pipeline 9 is equipped with a check valve 10, a pressure gauge 12, and a ball valve 11.
[0028] The control system presets the high and low limits of the liquid level gauge. When the liquid level in the condensate storage tank 3 reaches the high limit, the control system starts the submersible pump 8 to remove the excess condensate, thereby lowering the liquid level to the low limit and then shutting off the submersible pump 8 to ensure that the liquid level in the condensate storage tank 3 does not become too high.
Claims
1. A liquid chlorine vaporizer condensate water recycling system, the liquid chlorine vaporizer (1) is provided with a steam feed pipeline (101), a liquid chlorine feed pipeline (102), a chlorine gas discharge pipeline (103) and a steam condensate water discharge pipeline (104), a steam desuperheating and pressure reducing device (2) is connected to the steam feed pipeline (101), a steam pipeline (201) is connected to the steam inlet of the steam desuperheating and pressure reducing device (2), characterized in that, The steam condensate discharge pipeline (104) is connected with a condensate temporary storage tank (3), and a stop valve (4) and a trap (5) are arranged on the steam condensate discharge pipeline (104), the lower part of the condensate temporary storage tank (3) is connected with a metering pump (6) through a pipeline, and the outlet of the metering pump (6) is connected with the water inlet of the steam pressure-reducing and temperature-reducing device (2) through a condensate recycling pipeline (7).
2. The liquid chlorine vaporizer condensate reuse system of claim 1, wherein, A liquid level meter and a submersible pump (8) are arranged in the condensate temporary storage tank (3), and the outlet of the submersible pump (8) is connected with a steam condensate discharge pipeline (9).
3. The liquid chlorine vaporizer condensate reuse system of claim 2, wherein, A check valve (10) and a ball valve (11) are arranged on the steam condensate discharge pipeline (9).
4. The liquid chlorine vaporizer condensate reuse system of claim 3, wherein, A pressure gauge (12) is arranged on the steam condensate discharge pipeline (9).
5. The liquid chlorine vaporizer condensate reuse system of claim 3, wherein, Two submersible pumps (8) are arranged in the condensate temporary storage tank (3), and the two submersible pumps (8) are connected with the steam condensate discharge pipeline (9) in parallel.
6. The liquid chlorine vaporizer condenser water reuse system of claim 1, wherein, The condensate temporary storage tank (3) and the metering pump (6) are both arranged in an underground pool (13) and are separated by a partition wall (14).
7. The liquid chlorine vaporizer condensate reuse system of claim 1, wherein, A check valve (10) and a ball valve (11) are arranged on the condensate recycling pipeline (7).
8. The liquid chlorine vaporizer condensate reuse system of claim 7, wherein, A pressure gauge (12) is arranged on the condensate recycling pipeline (7).
9. The liquid chlorine vaporizer condenser water reuse system of claim 7, wherein, Two metering pumps (6) are arranged, the two metering pumps (6) are connected with the condensate temporary storage tank (3) in parallel through pipelines, and the two metering pumps (6) are connected with the condensate recycling pipeline (7) in parallel.