Drain flash tank
By using baffles and a multi-layer spray pipe system in the hydrophobic expansion tank, the problem of low steam and hydrophobic separation efficiency is solved, and efficient steam and hydrophobic separation and resource recovery are achieved.
Patent Information
- Application Number
- CN202422984170.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The existing hydrophobic expansion tank has low efficiency in steam and hydrophobic separation, resulting in large steam and water losses and incomplete steam separation, which affects equipment safety and resource recovery rate.
It adopts multiple baffles and diverter plates structure, combined with a multi-layer spray pipe system. The baffles reduce the hydrophobic flow rate and disperse the steam. The multi-layer spray pipes increase the contact area between steam and water. The water collection net and cooling pipes are used to accelerate steam condensation to achieve multiple separations.
It improves the separation efficiency of steam and water, reduces steam and water loss, increases the recovery rate of water, avoids equipment damage due to overpressure, and realizes efficient recovery of resources.
Smart Images
Figure CN223425067U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrophobic expanders, in particular to a hydrophobic expander. Background Art
[0002] The drain expansion tank is used to expand the condensed drain in the steam pipeline to reduce its pressure. A portion of the water vaporizes and becomes steam, while the remaining unvaporized high-temperature water is cooled and reused, introduced into the drain tank and continuously or periodically fed into the water supply system. The drain expansion tank is used to receive drain from the turbine body, main steam pipe, reheat steam drain, extraction system, and auxiliary equipment drains. The main purpose of the drain expansion tank is to reduce pressure. During the initial startup of the equipment or during accident handling, the direct discharge of high-temperature and high-pressure steam to the outside will cause a large loss of heat energy and water resources. Direct discharge into the condenser will cause overpressure or a rapid drop in vacuum in the condenser. The drain expansion tank can reduce the pressure and recover the medium and heat energy at the same time, avoiding equipment damage caused by overpressure.
[0003] In order to increase the separation of steam and hydrophobicity, existing hydrophobic expansion tanks usually install a spray device in the hydrophobic expansion tank to condense the steam and recover the hydrophobicity. However, during the recovery process, when there is a lot of steam in the tank, only the spraying method is used, and some steam is still discharged from the exhaust port. The separation efficiency of steam and hydrophobicity is not high, so it needs to be improved. Utility Model Content
[0004] The purpose of the utility model is to provide a hydrophobic expansion container, which has the characteristics of repeatedly blocking and condensing steam, so that steam and hydrophobicity are separated multiple times, thereby effectively improving the separation efficiency of steam and hydrophobicity, reducing steam-water loss, and increasing the recovery rate of hydrophobicity.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a hydrophobic expansion tank, comprising a tank body, a hydrophobic inlet pipe being installed on the left side wall of the tank body, an exhaust port and a drain port being installed on the top and bottom of the tank body, respectively, and an inspection port being installed on the right side wall of the tank body, a diverter plate being installed inside the tank body above the hydrophobic inlet pipe, a plurality of baffles being fixedly connected to the front and rear end surfaces inside the tank body being installed at the bottom of the diverter plate, a spray mechanism being provided above the diverter plate, the spray mechanism comprising a first spray pipe installed on the inner side wall of the tank body, a second spray pipe being provided inside the first spray pipe, and a third spray pipe being provided inside the second spray pipe;
[0006] A water collecting net installed on the inner wall of the tank body is provided above the spray mechanism, and a cooling pipe is installed at the bottom of the water collecting net. Both ends of the cooling pipe respectively pass through the inner wall of the tank body and are respectively installed with a liquid inlet pipe and a connecting pipe. The other end of the connecting pipe is connected to a water pipe passing through the outer wall of the tank body, and the outer wall of the other end of the water pipe is connected to the first spray pipe, the second spray pipe and the third spray pipe respectively with a guide pipe.
[0007] In order to disperse the steam and facilitate full contact between the steam and the spray water, as a preferred embodiment of the hydrophobic expansion container of the present invention, the diverter plate is inclined and a plurality of through holes are formed through the outer wall.
[0008] In order to facilitate fixing the positions of the first spray pipe and the second spray pipe, and to facilitate fixing the positions of the second spray pipe and the third spray pipe, as a preferred hydrophobic expansion tank of the present invention, multiple first connecting rods are installed between the first spray pipe and the second spray pipe, and multiple second connecting rods are installed between the second spray pipe and the third spray pipe.
[0009] In order to facilitate the first spray pipe, the second spray pipe and the third spray pipe to spray water, as the preferred hydrophobic expansion container of the present invention, the bottoms of the first spray pipe, the second spray pipe and the third spray pipe are all equipped with nozzles.
[0010] In order to facilitate the passage of water vapor, as a preferred embodiment of the hydrophobic expansion container of the present invention, the outer side wall of the baffle is in a mesh shape.
[0011] In order to facilitate the detection of the pressure and temperature inside the tank body, as well as the liquid level at the bottom of the tank body, the hydrophobic expansion container of the present invention is preferably installed with a pressure gauge and a thermometer at the left and right ends of the top of the tank body, and a liquid level gauge is installed at the bottom of the right side wall of the tank body.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] The utility model has multiple baffles that can diffuse the hydrophobicity and reduce its flow rate. After the high-temperature hydrophobicity enters the tank and is quickly vaporized, the multiple baffles and the diverter plate cooperate to disperse the steam, and the diverter plate can play a role in blocking the steam, so that a part of the steam condensate falls to the bottom of the tank body. At the same time, the first spray pipe, the second spray pipe and the third spray pipe spray at the same time, increasing the spraying area, so that the water vapor and the spray water are fully in contact, and the water vapor is quickly condensed. The water collection net and the cooling pipe cooperate to make the water vapor further condense quickly, thereby effectively improving the separation efficiency of steam and hydrophobicity, reducing steam-water loss, and increasing the recovery rate of hydrophobicity. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1This is the overall structural diagram of the utility model;
[0015] Figure 2 This is a top view of the spray mechanism of the present invention;
[0016] Figure 3 This is a top view of the water collection net of the present utility model;
[0017] Figure 4 This is a structural diagram of the spoiler of the present utility model.
[0018] In the figure: 1. Tank body; 101. Drain inlet pipe; 102. Exhaust port; 103. Inspection port; 104. Drain port; 105. Pressure gauge; 106. Thermometer; 107. Liquid level gauge; 2. Diverter plate; 201. Baffle; 3. Spray mechanism; 301. First spray pipe; 302. Second spray pipe; 303. Third spray pipe; 4. First connecting rod; 401. Second connecting rod; 5. Water collection net; 501. Cooling pipe; 502. Connecting pipe; 503. Liquid inlet pipe; 6. Water pipe; 601. Diversion pipe. DETAILED DESCRIPTION
[0019] See also Figures 1 to 4 , a hydrophobic expansion tank comprises a tank body 1, a hydrophobic inlet pipe 101 is installed on the left side wall of the tank body 1, an exhaust port 102 and a drain port 104 are respectively installed on the top and bottom of the tank body 1, an inspection port 103 is installed on the right side wall of the tank body 1, a diverter plate 2 is installed inside the tank body 1 above the hydrophobic inlet pipe 101, a plurality of baffles 201 fixedly connected to the front and rear end surfaces inside the tank body 1 are installed at the bottom of the diverter plate 2, a spray mechanism 3 is provided above the diverter plate 2, and the spray mechanism 3 comprises a first spray pipe 301 installed on the inner side wall of the tank body 1, a second spray pipe 302 is provided inside the first spray pipe 301, and a third spray pipe 303 is provided inside the second spray pipe 302;
[0020] A water collecting net 5 installed on the inner wall of the tank body 1 is provided above the spraying mechanism 3, and a cooling pipe 501 is installed at the bottom of the water collecting net 5. The two ends of the cooling pipe 501 respectively pass through the inner wall of the tank body 1 and are respectively installed with a liquid inlet pipe 503 and a connecting pipe 502. The other end of the connecting pipe 502 is connected to a water pipe 6 passing through the outer wall of the tank body 1. The outer wall of the other end of the water pipe 6 is connected to the first spray pipe 301, the second spray pipe 302 and the third spray pipe 303 respectively via a guide pipe 601.
[0021] In this embodiment: when in use, high-pressure hydrophobic water is passed into the interior of the tank body 1, and the hydrophobic water impacts and diffuses with multiple baffles 201 in turn, thereby reducing its flow rate. Then, the high-temperature hydrophobic water enters the interior of the tank and is rapidly vaporized. At this time, the steam is dispersed by multiple baffles 201 and the diverter plate 2, and the diverter plate 2 can play a role in blocking the steam, so that part of the steam condensate falls to the bottom of the tank body 1, and at the same time, the external water flow is passed into the cooling pipe 501 and the first spray pipe 301, the second spray pipe 302 and the third spray pipe 303, so that the first spray pipe 301, the second spray pipe 302 and the third spray pipe 303 are sprayed at the same time, increasing the spraying area, so that the water vapor is fully in contact with the spray water to accelerate the condensation of the water vapor, and the remaining water vapor continues to rise and is blocked by the water collecting net 5. At this time, the steam can fully contact the cooling pipe 501, so that the water vapor is further quickly condensed, thereby improving the separation efficiency of steam and hydrophobic water.
[0022] As a technical optimization solution of the present invention, the diverter plate 2 is arranged at an angle and a plurality of through holes are formed through the outer wall.
[0023] In this embodiment, a plurality of through holes are provided on the diverter plate 2 to disperse the steam, thereby facilitating full contact between the steam and the spray water.
[0024] As a technical optimization solution of the present invention, a plurality of first connecting rods 4 are installed between the first spray pipe 301 and the second spray pipe 302 , and a plurality of second connecting rods 401 are installed between the second spray pipe 302 and the third spray pipe 303 .
[0025] In this embodiment, the first connecting rod 4 is provided to facilitate fixing the positions of the first spray pipe 301 and the second spray pipe 302 , and the second connecting rod 401 is used to facilitate fixing the positions of the second spray pipe 302 and the third spray pipe 303 .
[0026] As a technical optimization solution of the present invention, nozzles are installed at the bottom of the first spray pipe 301 , the second spray pipe 302 and the third spray pipe 303 .
[0027] In this embodiment, by installing the spray heads, the first spray pipe 301 , the second spray pipe 302 and the third spray pipe 303 can spray water.
[0028] As a technical optimization solution of the present invention, the outer side wall of the spoiler 201 is mesh-shaped.
[0029] In this embodiment, the baffle 201 is provided in a mesh shape to facilitate the passage of water vapor.
[0030] As a technical optimization solution of the present invention, a pressure gauge 105 and a thermometer 106 are respectively installed on the left and right ends of the top of the tank body 1, and a liquid level gauge 107 is installed on the bottom of the right side wall of the tank body 1.
[0031] In this embodiment, by installing a pressure gauge 105 , a thermometer 106 and a liquid level gauge 107 , it is convenient to detect the pressure and temperature inside the tank body 1 , as well as the liquid level at the bottom of the tank body 1 .
[0032] Working principle: First, when using the device, high-pressure drain enters the tank body 1 through the drain inlet pipe 101, and the drain is impacted and diffused with multiple baffles 201 in turn, which can reduce the drain flow rate. Then, the high-temperature drain quickly vaporizes after entering the tank, and the drain falls to the bottom of the tank body 1 and is discharged from the drain port 104. Then the steam rises and is dispersed by multiple baffles 201 and the diverter plate 2. The diverter plate 2 can block the steam so that part of the steam condensate falls to the bottom of the tank body 1, and at the same time, the external water flow is diverted through the inlet pipe 101. The liquid pipe 503 is passed into the cooling pipe 501, so that the water in the cooling pipe 501 is passed into the first spray pipe 301, the second spray pipe 302 and the third spray pipe 303 through the water pipe 6 and the three guide pipes 601, and the water is sprayed, so that the water vapor is fully in contact with the spray water and condenses. The remaining water vapor continues to rise and is blocked by the water collecting net 5, so that the water vapor is fully in contact with the cooling pipe 501, so that the water vapor is condensed again. Finally, a small amount of gas that cannot be condensed is discharged from the exhaust port 102, thereby realizing the separation of steam and hydrophobicity.
[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A hydrophobic expansion container, comprising a tank body (1), wherein a hydrophobic water inlet pipe (101) is installed on the left side wall of the tank body (1), an exhaust port (102) and a drain port (104) are installed on the top and bottom of the tank body (1), respectively, and an inspection port (103) is installed on the right side wall of the tank body (1), characterized in that: The tank body (1) is provided with a diverter plate (2) located above the drain water inlet pipe (101), the bottom of the diverter plate (2) is provided with a plurality of baffles (201) fixedly connected to the front and rear end surfaces of the tank body (1), a spray mechanism (3) is provided above the diverter plate (2), the spray mechanism (3) comprises a first spray pipe (301) installed on the inner side wall of the tank body (1), a second spray pipe (302) is provided inside the first spray pipe (301), and a third spray pipe (303) is provided inside the second spray pipe (302); A water collecting net (5) installed on the inner wall of the tank body (1) is provided above the spray mechanism (3); a cooling pipe (501) is installed at the bottom of the water collecting net (5); both ends of the cooling pipe (501) respectively pass through the inner wall of the tank body (1) and are respectively installed with a liquid inlet pipe (503) and a connecting pipe (502); the other end of the connecting pipe (502) is connected to a water pipe (6) passing through the outer wall of the tank body (1); the outer wall of the other end of the water pipe (6) is respectively connected to the first spray pipe (301), the second spray pipe (302) and the third spray pipe (303) via a flow guide pipe (601).
2. The hydrophobic expansion container according to claim 1, characterized in that: The diverter plate (2) is arranged in an inclined manner and has a plurality of through holes penetrating through its outer wall.
3. The hydrophobic expansion container according to claim 1, characterized in that: A plurality of first connecting rods (4) are installed between the first spray pipe (301) and the second spray pipe (302), and a plurality of second connecting rods (401) are installed between the second spray pipe (302) and the third spray pipe (303).
4. The hydrophobic expansion container according to claim 1, characterized in that: The bottoms of the first spray pipe (301), the second spray pipe (302) and the third spray pipe (303) are all equipped with spray heads.
5. The hydrophobic expansion container according to claim 1, characterized in that: The outer side wall of the baffle (201) is in a mesh shape.
6. The hydrophobic expansion container according to claim 1, characterized in that: A pressure gauge (105) and a thermometer (106) are respectively installed at the left and right ends of the top of the tank body (1), and a liquid level gauge (107) is installed at the bottom of the right side wall of the tank body (1).