Steam condensate layering and collecting device
By designing a steam condensate layered collection device, the low-temperature and low-pressure condensate and high-temperature and high-pressure condensate are collected in layers by using the liquid distributor, and non-condensate gas is recovered, which solves the problem of water hitting and fog in the condensate collection process after steam heat exchange, and improves the safety and collection efficiency of the equipment.
Patent Information
- Application Number
- CN202420822442.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-04-19
AI Technical Summary
In the prior art, the condensate generated after steam heat exchange is inconsistent during the collection process, due to inconsistent pressure and temperature, the steam in the high-temperature and high-pressure condensate enters the low-temperature and low-pressure condensate pipeline, causing water shock and safety hazards. At the same time, the non-condensate gas cannot be effectively recovered, resulting in fog surrounding the equipment and affecting the environment.
A steam condensate layered collection device is designed. By setting up a low-temperature and low-pressure condensate pipeline and a high-temperature and high-pressure condensate pipeline in the condensate collector, and using the distributor to collect the low-temperature and high-temperature and high-pressure condensate liquid in a layered manner, the water vapor in the high-temperature and high-pressure condensate liquid is prevented from entering the low-temperature and low-pressure condensate pipeline, and at the same time, the non-condensate gas is recovered and condensed to discharge the non-condensate gas.
It effectively prevents water vapor from entering the low-temperature and low-pressure condensate pipeline, avoids water hits and safety hazards, improves the safety and stability of the equipment. At the same time, by recycling non-condensate gas, the fog surrounding the equipment is eliminated, and the effect of energy conservation and emission reduction is achieved.
Smart Images
Figure CN222895559U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal energy equipment, in particular to a steam condensate stratification collection device. Background Art
[0002] During the production process, the condensate pressure and temperature generated after steam heat exchange in each device are different. When collecting the condensate from each device at the same time, the steam in the high-pressure condensate will enter the low-pressure condensate pipeline, which will not only prevent the low-pressure and low-temperature condensate from entering the condensate collector smoothly, but also the sudden encounter of fluids with different flow rates will cause the fluid in the low-pressure and low-temperature pipeline to produce non-directional flow, and produce a phenomenon of constant pressure rise and fall in the fluid, causing water hammer in the low-pressure and low-temperature pipeline. When water hammer occurs, it will cause safety hazards to the low-pressure and low-temperature pipeline and the connected equipment. In severe cases, severe vibration will occur, causing rupture and damage to equipment such as pipeline valves. The vent of the atmospheric pressure condensate collector is directly connected to the atmosphere. The temperature of the uncondensed steam in the condensate collector is usually 70°-80°, or even higher. If it is directly emptied, it will not only cause the loss of water vapor, but also cause fog around the equipment in the cold winter, affecting the environment. Utility Model Content
[0003] The utility model aims at the deficiencies of the prior art and provides a steam condensate stratification collection device to solve the technical problems mentioned in the above background technology.
[0004] In order to achieve the above technical objectives, the utility model proposes the following technical solutions: a steam condensate stratified collection device, comprising a condensate collector, a low-temperature and low-pressure condensate pipeline and a high-temperature and high-pressure condensate pipeline, a non-condensable gas discharge port is provided at the top of the condensate collector, a liquid outlet pipeline and a drain pipeline are provided at the bottom of the condensate collector, an aqueous solution is placed in the condensate collector, an outlet end of the low-temperature and low-pressure condensate pipeline extends below the liquid surface of the aqueous solution in the condensate collector, an outlet end of the low-temperature and low-pressure condensate pipeline is connected to a distribution outlet, and an outlet end of the high-temperature and high-pressure condensate pipeline is located above the liquid surface of the aqueous solution.
[0005] Furthermore, the liquid distributor includes a liquid outlet pipe connected to the outlet end of the low-temperature and low-pressure condensate pipeline, a plurality of liquid distributors are connected to the liquid outlet pipe, and the liquid distributors are communicated with the liquid outlet pipe, and a plurality of liquid outlet holes are evenly opened on the liquid distributors.
[0006] Furthermore, a regulating valve 1 is provided on the low-temperature and low-pressure condensate pipeline, a regulating valve 2 is provided on the high-temperature and high-pressure condensate pipeline, a regulating valve 3 is provided on the exhaust pipeline, a liquid level sensor 1 is provided in the condensate collector, and a solenoid valve 1 is provided on the liquid outlet pipeline, and the solenoid valve 1 is electrically connected to the liquid level sensor 1.
[0007] Furthermore, a manhole is provided on one side of the condensate collector.
[0008] Furthermore, a non-condensable gas collector is installed above the condensate collector through a bracket, the non-condensable gas collector is connected to the non-condensable gas discharge port through a steam inlet pipe, a condensation pipe is provided in the non-condensable gas collector, one end of the condensation pipe passes through the non-condensable gas collector and is connected to a coolant inlet pipeline, the other end of the condensate pipeline network passes through the non-condensable gas collector and is connected to a coolant outlet pipeline, the bottom of the non-condensable gas collector is connected to the condensate collector through a drain line, and a vent pipe is provided on the top of the non-condensable gas collector.
[0009] Furthermore, the coolant inlet pipeline is provided with an inlet valve, the coolant outlet pipeline is provided with an outlet valve, the non-condensable gas collector is provided with a second liquid level sensor, the discharge pipeline is provided with a second solenoid valve, and the second solenoid valve is electrically connected to the second liquid level sensor.
[0010] Compared with the prior art, the beneficial effects produced by the utility model are: the utility model has a novel structure, ingenious conception, simple and convenient operation, and has the following advantages compared with the prior art: the utility model collects the low-temperature and low-pressure condensate and the high-temperature and high-pressure condensate in layers in the condensate collector, and recovers two condensates of different pressures and temperatures at the same time, thereby preventing water vapor in the high-temperature and high-pressure condensate from entering the low-temperature and low-pressure condensate pipeline, ensuring that the condensate in the low-pressure condensate pipeline smoothly enters the condensate collector, thereby improving the safety and stability of the equipment; the low-temperature and low-pressure condensate and water vapor are dispersed in the aqueous solution through the distribution liquid outlet, thereby improving the collection efficiency of the condensate; the non-condensable gas is cooled, condensed and collected through the non-condensable liquid collector, thereby eliminating the situation where the non-condensable gas discharge port is fogged in winter, and at the same time achieving the effect of energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 It is a structural schematic diagram of the distributed liquid discharger of the utility model.
[0013] In the figure, 1, condensate collector; 2, low-temperature and low-pressure condensate pipeline; 3, high-temperature and high-pressure condensate pipeline; 4, liquid outlet pipeline; 5, drain pipeline; 6, aqueous solution; 7, distribution outlet; 71, liquid outlet pipe; 72, liquid distributor; 73, liquid outlet hole; 8, regulating valve one; 9, regulating valve two; 10, regulating valve three; 11, solenoid valve one; 12, manhole; 13, bracket; 14, non-condensable gas collector; 15, steam inlet pipe; 16, coolant inlet pipeline; 17, coolant outlet pipeline; 18, drain pipeline; 19, vent pipe; 20, liquid inlet valve; 21, liquid outlet valve; 22, solenoid valve two. DETAILED DESCRIPTION
[0014] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.
[0015] The utility model provides a steam condensate stratified collection device, comprising a condensate collector 1, a low-temperature and low-pressure condensate pipeline 2 and a high-temperature and high-pressure condensate pipeline 3, wherein a non-condensable gas discharge port is arranged at the top of the condensate collector 1, a liquid outlet pipeline 4 and a drain pipeline 5 are arranged at the bottom of the condensate collector 1, a water solution 6 is placed in the condensate collector 1, an outlet end of the low-temperature and low-pressure condensate pipeline 2 extends below the liquid surface of the water solution 6 in the condensate collector 1, an outlet end of the low-temperature and low-pressure condensate pipeline 2 is connected to a distribution outlet 7, and an outlet end of the high-temperature and high-pressure condensate pipeline 3 is located above the liquid surface of the water solution 6.
[0016] like Figure 1 As shown, the low-temperature and low-pressure condensate mixed with water vapor enters below the liquid level of the aqueous solution 6 in the condensate collector 1 through the low-temperature and low-pressure condensate pipeline 2, and is sprayed to all sides through the distribution outlet 7. The high-temperature and high-pressure condensate mixed with water vapor enters above the liquid level of the aqueous solution 6 in the condensate collector 1 through the high-temperature and high-pressure condensate pipeline 3. The low-temperature and low-pressure condensate and the high-temperature and high-pressure condensate are placed on different levels in the same collector so that the two do not contact in the condensate collector 1, which can effectively prevent the water vapor in the high-temperature and high-pressure condensate from entering the low-temperature and low-pressure condensate pipeline 2 and causing water hammer in the low-temperature and low-pressure condensate pipeline 2, ensuring that the condensate and steam in the low-temperature and low-pressure condensate pipeline 2 enter the condensate collector 1. The drain pipeline 5 is used to empty the liquid in the condensate collector 1. The liquid outlet pipeline 4 can transport the condensate to the power plant for use through the infusion pump, and the non-condensable gas is discharged through the non-condensable gas discharge port.
[0017] The liquid distributor 7 includes a liquid outlet pipe 71 connected to the outlet end of the low-temperature and low-pressure condensate pipeline 2, a plurality of liquid distributors 72 are connected to the liquid outlet pipe 71, and the liquid distributors 72 are communicated with the liquid outlet pipe 71, and a plurality of liquid outlet holes 73 are evenly opened on the liquid distributors 72.
[0018] like Figure 2 As shown, the condensate and the water vapor in the condensate enter the liquid outlet pipe 71 through the low-temperature and low-pressure condensate pipeline 2, and the condensate and water vapor are dispersed and discharged into the aqueous solution 6 through the liquid outlet hole 73 on the liquid separator 72, thereby increasing the contact area between the condensate and water vapor and the aqueous solution 6 and improving the collection effect.
[0019] The low-temperature and low-pressure condensate pipeline 2 is provided with a regulating valve 8, the high-temperature and high-pressure condensate pipeline 3 is provided with a regulating valve 2 9, the exhaust pipeline 5 is provided with a regulating valve 3 10, the condensate collector 1 is provided with a liquid level sensor 1, the liquid outlet pipeline 4 is provided with a solenoid valve 11, and the solenoid valve 11 is electrically connected to the liquid level sensor 1. The steam condensate stratified collection device also includes a PLC controller for processing data transmitted by the sensor, and controlling the switch of the solenoid valve 11 based on the comparison of the detected data with the input data.
[0020] like Figure 1 As shown, regulating valve 1 8 is used to control the discharge of condensate and water vapor in the low-temperature and low-pressure condensate pipeline 2, regulating valve 2 9 is used to control the discharge of condensate and water vapor in the high-temperature and high-pressure condensate pipeline 3, and liquid level sensor 1 can be used to detect the water level change of the aqueous solution 6 in the condensate collector 1, and transmit the water level signal to the solenoid valve 11. When the water level reaches the set value, the solenoid valve 11 is opened, and when it is lower than the set value, the solenoid valve 11 is closed.
[0021] A manhole 12 is provided on one side of the condensate collector.
[0022] like Figure 1 As shown, the manhole 12 is convenient for maintenance of the condensate collector 1, and the condensate collector 1 needs to be emptied for use during maintenance.
[0023] A non-condensable gas collector 14 is installed above the condensate collector 1 through a bracket 13. The non-condensable gas collector 14 is connected to the non-condensable gas discharge port through a steam inlet pipe 15. A condensation pipe is provided in the non-condensable gas collector 14. One end of the condensation pipe passes through the non-condensable gas collector 14 and is connected to a coolant inlet pipeline 16. The other end of the condensate pipeline network passes through the non-condensable gas collector 14 and is connected to a coolant outlet pipeline 17. The bottom of the non-condensable gas collector 14 is connected to the condensate collector 1 through a discharge pipeline 18. A vent pipe 19 is provided on the top of the non-condensable gas collector 14.
[0024] like Figure 1 As shown, the non-condensable gas collector 1 is used to recover the uncondensed water vapor in the condensate collector 1; the non-condensable gas enters the non-condensable gas collector 14 through the steam inlet pipe 15, and at the same time, the coolant inlet pipeline 16 transports coolant to the condensate tube. The non-condensable gas contacts the condensate tube in the non-condensable gas collector 14, exchanges heat with the non-condensable gas, condenses into water droplets and falls into the non-condensable gas collector 14, and the condensate enters the condensate collector 1 through the drain pipeline 18, and trace water vapor is discharged through the vent pipe 19. In this embodiment, the condensate tube is spirally installed in the non-condensable gas collector 14.
[0025] The coolant inlet pipeline 16 is provided with an inlet valve 20, the coolant outlet pipeline 17 is provided with an outlet valve 21, the non-condensable gas collector 14 is provided with a second liquid level sensor, the discharge pipeline 18 is provided with a second solenoid valve 22, and the second solenoid valve 22 is electrically connected to the second liquid level sensor.
[0026] like Figure 1 As shown, the liquid inlet valve 20 is used to control the opening of the coolant inlet pipeline 16, the liquid outlet valve 21 is used to control the opening of the coolant outlet pipeline 17, and the liquid level sensor 2 is used to detect the water level change of the condensed water in the non-condensable gas collector 14. If the water level of the condensed water is higher than the set water level value, the solenoid valve 22 is opened to discharge the condensed water into the condensate collector 1. If it is lower than the set water level value, the solenoid valve 22 is in a closed state.
[0027] Principle of use: Open regulating valve 1 8, regulating valve 2 9, liquid outlet valve 20, and liquid inlet valve 21 respectively, and close regulating valve 3 10. The low-temperature low-pressure condensate and high-temperature high-pressure condensate mixed with water vapor enter the condensate collector 1 along the low-temperature low-pressure condensate pipeline 2 and the high-temperature high-pressure condensate pipeline 3 respectively, wherein the low-temperature low-pressure condensate enters below the liquid level of the aqueous solution 6 and is dispersed into the aqueous solution 6 through the distribution liquid outlet 7. The high-temperature high-pressure condensate is located on the liquid surface, so that the two do not contact each other in the same collector; the coolant enters the non-condensable gas collector 14 to cool it down, and the non-condensable gas enters the non-condensable gas collector 1 along the steam inlet pipe 15 4, the non-condensable gas is cooled and condensed into water droplets in the non-condensable gas collector 14 and falls into the non-condensable gas collector 14. The liquid level in the non-condensable gas collector 14 is detected by the liquid level sensor 2, and the switch of the solenoid valve 2 22 is controlled according to the data transmitted by the liquid level sensor 2. Similarly, to ensure the liquid level of the aqueous solution 6 in the condensate collector 1, the switch of the solenoid valve 1 1 is controlled according to the detection of the liquid level by the liquid level sensor 1; when the condensate collector 1 needs to be repaired, the regulating valve 1 8, the regulating valve 2 9, the liquid outlet valve 20, and the liquid inlet valve 21 are closed and opened, and the regulating valve 3 10 is opened to drain the liquid in the condensate collector 1.
[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A steam condensate stratification collection device, characterized in that: The invention comprises a condensate collector (1), a low-temperature and low-pressure condensate pipeline (2) and a high-temperature and high-pressure condensate pipeline (3). The top of the condensate collector (1) is provided with a non-condensable gas discharge port. The bottom of the condensate collector (1) is provided with a liquid outlet pipeline (4) and a drain pipeline (5). An aqueous solution (6) is placed in the condensate collector (1). The outlet end of the low-temperature and low-pressure condensate pipeline (2) extends below the liquid surface of the aqueous solution (6) in the condensate collector (1). The outlet end of the low-temperature and low-pressure condensate pipeline (2) is connected to a distribution liquid outlet (7). The outlet end of the high-temperature and high-pressure condensate pipeline (3) is located above the liquid surface of the aqueous solution (6).
2. A steam condensate stratification collection device according to claim 1, characterized in that: The liquid distributor (7) comprises a liquid outlet pipe (71) connected to the outlet end of the low-temperature and low-pressure condensate pipeline (2); a plurality of liquid distributor pipes (72) are connected to the liquid outlet pipe (71); the liquid distributor pipes (72) are in communication with the liquid outlet pipe (71); and a plurality of liquid outlet holes (73) are evenly formed on the liquid distributor pipes (72).
3. A steam condensate stratification collection device according to claim 1, characterized in that: The low-temperature and low-pressure condensate pipeline (2) is provided with a regulating valve one (8), the high-temperature and high-pressure condensate pipeline (3) is provided with a regulating valve two (9), the exhaust pipeline (5) is provided with a regulating valve three (10), the condensate collector (1) is provided with a liquid level sensor one, the liquid outlet pipeline (4) is provided with a solenoid valve one (11), and the solenoid valve one (11) is electrically connected to the liquid level sensor one.
4. A steam condensate stratification collection device according to claim 1, characterized in that: A manhole (12) is provided on one side of the condensate collector (1).
5. The steam condensate stratification collection device according to claim 1, characterized in that: A non-condensable gas collector (14) is installed above the condensate collector (1) via a bracket (13); the non-condensable gas collector (14) is connected to the non-condensable gas discharge port via a steam inlet pipe (15); a condensation pipe is provided in the non-condensable gas collector (14); one end of the condensation pipe passes through the non-condensable gas collector (14) and is connected to a coolant inlet pipeline (16); the other end of the condensate pipe network passes through the non-condensable gas collector (14) and is connected to a coolant outlet pipeline (17); the bottom of the non-condensable gas collector (14) is connected to the condensate collector (1) via a discharge pipeline (18); and a vent pipe (19) is provided at the top of the non-condensable gas collector (14).
6. A steam condensate stratification collection device according to claim 5, characterized in that: The coolant inlet pipeline (16) is provided with an inlet valve (20), the coolant outlet pipeline (17) is provided with an outlet valve (21), the non-condensable gas collector (14) is provided with a second liquid level sensor, the discharge pipeline (18) is provided with a second solenoid valve (22), and the second solenoid valve (22) is electrically connected to the second liquid level sensor.