Drainage tank for inhibiting generation of rime fog
By adding spray pipes and heat dissipation fins in the drain tank and using a mixture of cooling water and condensate to spray and cool down, the white mist problem in the drain tank is solved, and a quick and simple white mist suppression effect is achieved, while reducing cooling water consumption and construction costs.
Patent Information
- Application Number
- CN202422784601.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Existing technologies cannot quickly and easily suppress the white mist phenomenon in the drain tank, and require the modification of plant pipelines, which increases the construction period and capital costs.
A spray pipe is added to the drain tank, and desalinated cooling water and condensate water are mixed to form spray water. The spray water temperature is higher than the desalinated cooling water and lower than the condensate water. It is sprayed into the discharge pipe to form a spray to reduce the steam temperature. Combined with the heat dissipation fins, the heat exchange efficiency is improved and the amount of white mist is accurately controlled.
Effectively inhibit the generation of white mist, reduce cooling water consumption, avoid water level growth, flexibly control the amount of white mist, simplify the construction process, and reduce construction costs.
Smart Images
Figure CN223388369U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a hydrophobic tank for suppressing the generation of white mist. Background Art
[0002] The ammonia produced by the urea hydrolysis process has a temperature of 135-145°C and a pressure of 0.4-0.55 MPa. To prevent crystallization of the ammonia produced by hydrolysis during pipeline transportation due to temperature drops, the ammonia pipeline must be heated, typically using steam. After heating, the water is collected and sent to a drain tank. When the drain temperature is above 95°C, the drain tank emits a large amount of white smoke (water vapor), which is particularly noticeable in winter. The higher the drain temperature, the longer the white smoke.
[0003] In other patent applications of our unit, by utilizing the low-grade heat of condensed water, the condensed water temperature can be lowered and the generation of white mist in the drain tank can be suppressed. This is a solution to solve the problem from the source.
[0004] The above plan requires the transformation of the factory pipelines, which requires a certain construction period and financial arrangements.
[0005] From an emergency perspective, the above solution cannot quickly solve the problem of white fog.
[0006] Therefore, the technical problem solved in this case is: how to effectively, quickly and simply reduce the white mist phenomenon in the drain tank. Utility Model Content
[0007] The purpose of the utility model is to solve the above problems and provide a drain tank for suppressing the generation of white mist. The drain tank can effectively suppress the generation of white mist by adding a spray pipe without significantly increasing the water consumption of cooling water.
[0008] To achieve the above objectives, the present invention provides the following technical solutions:
[0009] A steam trap for suppressing the generation of white mist comprises a tank body, a discharge pipe for discharging water vapor is provided on the top of the tank body; a water inlet pipe is provided on the tank body for inputting condensate collected by a steam trap into the tank body; a spray pipe is provided in the discharge pipe; the liquid source of the spray pipe is a mixer; the mixer is used to mix external cooling water and part of the condensate in the water inlet pipe; the spray pipe is used to spray the water input by the mixer downward into the discharge pipe.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] The utility model adopts desalination cooling water and condensation water to make spray water. The water temperature of the spray water is higher than the desalination cooling water and lower than the condensation water. The spray water forms a spray that can effectively reduce the steam temperature of the discharge pipe, reduce the amount of steam entering the atmosphere, and reduce the amount of white mist. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a front view of an implementation form of Example 1;
[0013] Figure 2 This is a front view of another implementation form of Example 1;
[0014] Figure 3 Example 1 Figure 2 A partial cross-sectional view of . DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0016] Example 1
[0017] refer to Figure 1 A steam trap for suppressing the generation of white fog includes a tank body 1, a discharge pipe 2 for discharging water vapor is provided on the top of the tank body 1; a water inlet pipe 3 is provided on the tank body 1 for inputting condensed water collected by the steam trap into the tank body 1; a spray pipe 4 is provided in the discharge pipe 2; the liquid source of the spray pipe 4 is a mixer 5; the mixer 5 is used to mix external cooling water and part of the condensed water in the water inlet pipe 3; the spray pipe 4 is used to spray the water input by the mixer 5 downward into the discharge pipe 2.
[0018] In actual production, the condensate produced by the hydrophobic system is high-quality salt-free water. However, the water temperature in the steam trap is relatively high, and in winter, a large amount of water vapor is easily generated at the location of the discharge pipe 2. Generally speaking, the ideal state is for the discharge pipe 2 to discharge a small amount of steam to inhibit the entry of outside air into the steam trap. However, if the steam in the steam trap is not controlled, the amount of steam discharged from the discharge pipe 2 will be too large, which will cause local fog, affecting vision and plant operations. In order to solve this problem, the desalinated cooling water and condensate are mixed to produce a spray at a relatively low temperature. The spray eliminates most of the steam in the discharge pipe 2 and suppresses the amount of white fog in the discharge pipe 2.
[0019] At the same time, since a mixture of cooling water and condensate is used, the amount of water in the tank body 1 does not increase significantly; compared with the solution of directly spraying desalinated cooling water, the solution of this embodiment can reduce the amount of desalted water used and avoid the water level in the tank body 1 from increasing too quickly.
[0020] Preferably, the mixer 5 is connected to a cooling water input pipe 6 and a condensate input pipe 7; the condensate input pipe 7 is connected to the water inlet pipe 3; the cooling water input pipe 6 and the condensate input pipe 7 are respectively provided with a control valve 8; and a first temperature sensor 9 is provided in the mixer 5.
[0021] The operator can control the opening of the two control valves 8 according to the amount of white mist visually observed in the discharge pipe 2 to determine the temperature of the spray water, and determine the accurate spray temperature through the temperature sensor. In this way, the amount of white mist can be accurately controlled.
[0022] More preferably, a temperature sensor is also provided on the discharge pipe 2, and the operator can make more accurate adjustments by combining the amount of white mist and the temperature parameters of the temperature sensor.
[0023] In the preferred embodiment of this invention, Figure 2 and Figure 3 The discharge pipe 2 is S-shaped; the discharge pipe 2 is formed by connecting three sections of a first pipe 10, a second pipe 11, and a third pipe 12 in sequence; the first pipe 10 is connected to the tank body 1, and the spray pipe 4 is arranged in the first pipe 10; the outlet of the third pipe 12 is upward, and the outer walls of the second pipe 11 and the third pipe 12 are provided with horizontally arranged, annular first heat dissipating fins 13; the inner walls of the second pipe 11 and the third pipe 12 are provided with a plurality of second heat dissipating fins 14 extending along the second pipe 11 and the third pipe 12.
[0024] After the spray pipe 4 cools and demists the air, some water vapor still remains. This can be achieved, especially in winter, by increasing the heat exchange rate between the steam in the discharge pipe 2 and the cold air outside through the first and second heat dissipating fins 13 and 14, thereby condensing the water vapor. This design is particularly effective in windy environments.
[0025] In the preferred operation scheme of this embodiment, if the amount of white mist discharged by the discharge pipe 2 is not large, the spray pipe 4 can be omitted and the white mist problem can be well solved by the first heat dissipation fins 13 and the second heat dissipation fins 14. If the amount of white mist is large, the spray pipe 4 should be activated.
[0026] Therefore, through the preferred design of this embodiment, the amount of white mist can be effectively and flexibly controlled.
[0027] Preferably, a second temperature sensor 15 for detecting the gas temperature in the third pipe 12 is provided in the third pipe 12. The connection between the second pipe 11 and the third pipe 12 is the lowest point of the second pipe 11 and the third pipe 12; a return pipe 16 connected to the tank body 1 is provided at the lowest point.
[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements or modifications can be made without departing from the principles of the present invention. These improvements or modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A steam trap for suppressing the generation of white fog, comprising a tank body, a discharge pipe for discharging water vapor provided on the top of the tank body; a water inlet pipe for inputting condensed water collected by the steam trap into the tank body; characterized in that: A spray pipe is provided in the discharge pipe; the liquid source of the spray pipe is a mixer; the mixer is used to mix external cooling water and part of the condensed water in the water inlet pipe; the spray pipe is used to spray the water input by the mixer downward into the discharge pipe.
2. The hydrophobic tank for suppressing the generation of white mist according to claim 1, characterized in that: The mixer is connected to a cooling water input pipe and a condensate input pipe; the condensate input pipe is connected to a water inlet pipe; the cooling water input pipe and the condensate input pipe are respectively provided with a control valve; a first temperature sensor is provided in the mixer.
3. The hydrophobic tank for suppressing the generation of white mist according to claim 1, characterized in that: The discharge pipe is S-shaped; the discharge pipe is formed by connecting three sections of a first pipe, a second pipe, and a third pipe in sequence; the first pipe is connected to the tank body, and the spray pipe is arranged in the first pipe; the outlet of the third pipe is upward.
4. The hydrophobic tank for suppressing the generation of white mist according to claim 3, characterized in that: The outer walls of the second and third pipes are provided with horizontally arranged, annular first heat dissipating fins; the inner walls of the second and third pipes are provided with a plurality of second heat dissipating fins extending along the second and third pipes.
5. The hydrophobic tank for suppressing the generation of white mist according to claim 4, characterized in that: A second temperature sensor for detecting the temperature of the gas in the third pipeline is provided in the third pipeline.
6. The hydrophobic tank for suppressing the generation of white mist according to claim 3, characterized in that: The connection point of the second pipeline and the third pipeline is the lowest point of the second pipeline and the third pipeline; a return pipe connected to the tank body is provided at the lowest point.