Condensate recovery tank for steam pipe network

Abstract

The utility model relates to the technical field of steam, and discloses a steam pipe network condensate recovery tank which comprises a recovery tank body, a steam inlet is formed in the side outer wall of the recovery tank body, a guide plate is fixedly connected to the inner wall of the recovery tank body, one end of the guide plate corresponds to the steam inlet, and the other end of the guide plate corresponds to the steam outlet. A steam outlet is formed in the outer wall of the top of the recycling tank body, a mounting frame is fixedly connected to the outer wall of the steam outlet, a mounting groove is formed in the outer wall of the mounting frame, a replacement frame is mounted on the mounting frame through the mounting groove, fiber felt is fixedly mounted on the inner wall of the replacement frame, and two round frames are fixedly connected to the interior of the recycling tank body; the inner walls of the two circular frames are fixedly connected with a plurality of rotational flow plates, and flow guide holes are formed in the outer walls of the two circular frames in a circumferential array, so that the gas-liquid separation efficiency in the condensate recovery tank body is remarkably improved, the phenomenon that liquid is carried by steam is effectively avoided, and the steam quality is improved.

Description

Technical Field

[0001] The present utility model application relates to the technical field of steam, and particularly relates to a condensate recovery tank for a steam pipe network. Background Art

[0002] In the field of industrial production, steam, with its good heat transfer performance and recyclability, has become an indispensable energy carrier in many industries such as chemical industry, food, and pharmaceuticals. However, during the transportation and use of steam in the pipe network, heat is continuously released and condensed into condensate. If this condensate can be effectively recovered, not only can the reuse of water resources be achieved, but also the heat energy contained therein can be recovered, reducing the production costs of enterprises.

[0003] Regarding the above related technologies, the inventor believes that some condensate recovery tanks rely on the traditional gravity sedimentation principle and only achieve separation by relying on the density difference between steam and condensate. Since the gravity separation technology cannot change the flow direction and speed of steam in a timely manner, the gas-liquid separation efficiency is low, and the discharged steam carries more droplets, affecting the normal operation of subsequent process equipment and product quality. Therefore, a condensate recovery tank for a steam pipe network is proposed to solve the above problems.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In order to solve the above problems, this application provides a condensate recovery tank for a steam pipe network.

[0006] The condensate recovery tank for a steam pipe network provided by the present utility model application adopts the following technical solutions:

[0007] A condensate recovery tank for a steam pipe network includes a recovery tank body. A steam inlet is installed on the outer side wall of the recovery tank body. A guide plate is fixedly connected to the inner wall of the recovery tank body, and one end of the guide plate corresponds to the steam inlet. A steam outlet is installed on the outer wall of the top of the recovery tank body. An installation frame is fixedly connected to the outer wall of the steam outlet. An installation groove is formed on the outer wall of the installation frame. A replacement frame is installed through the installation groove on the installation frame. A fiber felt is fixedly installed on the inner wall of the replacement frame. Two circular frames are fixedly connected to the inside of the recovery tank body. A plurality of swirl plates are fixedly connected to the inner walls of the two circular frames. Diversion holes are formed in a circumferential array on the outer walls of the two circular frames. A condensate outlet is fixedly connected to the outer wall of the bottom of the recovery tank body.

[0008] Preferably, an electric valve is fixedly installed on the outer wall of the condensate outlet, and a liquid level sensor is fixedly connected to the inner wall of the bottom of the recovery tank. The liquid level sensor and the electric valve are both electrically connected to an external controller.

[0009] Preferably, inner grooves are formed on both inner walls of the mounting frame. Spring members are fixedly connected to the inner walls of the inner grooves. A clamping block is movably installed in the inner groove through the spring member. Claw slots adapted to the clamping blocks are formed on both outer walls of the replacement frame.

[0010] Preferably, through holes are formed in the inner wall of the guide plate, and the guide plate is designed in an arc shape.

[0011] Preferably, a pressure regulator for pressure adjustment is fixedly connected to the outer wall of the steam inlet.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. The combined action of the arc-shaped guide plate, the swirl plate and the fiber felt provided in the cylinder of the present device realizes multi-stage gas-liquid separation. The arc-shaped guide plate gives it an initial rotational force, enabling the orderly separation of the gas-liquid mixture while guiding the steam to be evenly distributed in the tank, avoiding the formation of a disordered flow field that causes the separated liquid droplets to be re-involved in the steam again. The swirl plate further strengthens the spiral upward movement of the steam, using centrifugal force to efficiently throw the liquid droplets towards the tank wall, greatly shortening the gas-liquid separation time. Even in the face of complex working conditions with a large steam flow rate and high velocity, rapid and sufficient separation can be achieved. The fiber felt then finely filters the steam, intercepting residual tiny liquid droplets and impurity particles, greatly reducing the liquid content in the steam, enabling the recovery tank to efficiently complete gas-liquid separation and condensate recovery work under different working conditions. Compared with traditional recovery tanks, the gas-liquid separation efficiency inside the condensate recovery tank is significantly improved, effectively avoiding the phenomenon of steam carrying liquid and improving the steam quality.

[0014] 2. The replacement frame of the recovery tank provided in the present device is connected to the mounting frame through the mounting groove and the spring clamping block structure. When the fiber felt needs to be replaced, the operator only needs to press the clamping block with a small external force, and use the elastic deformation of the spring member to make the clamping block contract and disengage from the claw slot, then the replacement frame can be easily pulled out from the mounting groove, realizing the installation and replacement of the fiber felt conveniently and quickly, reducing the equipment maintenance difficulty and maintenance cost.

[0015] 3. The liquid level sensor at the bottom of the tank and the electric valve provided in the present device are linked through an external controller, which can accurately monitor the liquid level of the condensate in the tank in real time, automatically control the discharge of the condensate according to the liquid level change, not only realizing the efficient recovery of the condensate, but also ensuring the stability of the liquid level in the tank, avoiding a series of problems caused by too high or too low liquid level, and realizing the automated management of the condensate recovery process. Description of the Drawings

[0016] Figure 1 is the overall schematic diagram of the application embodiment;

[0017] Figure 2 is the sectional view of the recovery tank structure of the application embodiment;

[0018] Figure 3 is the schematic diagram of the partial recovery tank structure of the application embodiment;

[0019] Figure 4 is the sectional view of the mounting frame structure of the application embodiment.

[0020] Explanation of reference numerals: 1, recovery tank; 2, steam inlet; 3, pressure regulator; 4, condensate outlet; 5, electric valve; 6, mounting frame; 7, steam outlet; 8, replacement frame; 9, fiber felt; 10, card slot; 11, circular frame; 12, diversion hole; 13, swirl plate; 14, guide plate; 15, liquid level sensor; 16, through hole; 17, mounting groove; 18, inner groove; 19, spring member; 20, clamping block. Detailed implementation manners

[0021] The following combines the attached Figure 1 - Figure 4 to further elaborate on this application in detail.

[0022] A condensate recovery tank for a steam pipe network, comprising a recovery tank body 1. A steam inlet 2 is installed on the outer side wall of the recovery tank body 1, and the steam inlet 2 is connected to the steam pipe network through a flange. A guide plate 14 is fixedly connected to the outer wall of the recovery tank body 1. One end of the guide plate 14 corresponds to the steam inlet 2. When the gas-liquid mixed steam enters the tank from the steam inlet 2, it will flow along the arc-shaped surface of the guide plate 14. The guide plate 14 can not only preliminarily guide the steam, making the high-speed steam that might originally concentrate on impacting a certain part of the tank evenly diffuse into the tank space, but also a steam outlet 7 is installed on the outer wall of the top of the recovery tank body 1. An installation frame 6 is fixedly connected to the outer wall of the steam outlet 7. An installation groove 17 is opened on the outer wall of the installation frame 6. The installation frame 6 is provided with a replacement frame 8 through the installation groove 17. The replacement frame 8 can be replaced and installed through the installation groove 17, so as to facilitate the maintenance of the subsequent fiber felt 9. A fiber felt 9 is fixedly installed on the inner wall of the replacement frame 8. The fiber felt 9 has a very high specific surface area and a unique pore structure, and can efficiently intercept the tiny liquid droplets and impurity particles carried in the steam by means of multiple action mechanisms such as interception, adsorption, and diffusion. After the steam is filtered by it, the liquid content is greatly reduced, effectively avoiding the phenomenon of steam carrying liquid, separating the steam from the condensate. Two circular frames 11 are fixedly connected to the inside of the recovery tank body 1. A plurality of swirl plates 13 are fixedly connected to the inner walls of the two circular frames 11. Flow guide holes 12 are arranged in a circumferential array on the outer walls of the two circular frames 11. The swirl plates 13 can make full use of the initial rotational force given to the steam by the guide plate 14 to further guide the steam to generate a strong spiral upward movement. Under the action of centrifugal force, the liquid droplets in the gas-liquid mixture are efficiently separated and thrown towards the inner wall of the recovery tank body 1, and then quickly flow to the bottom of the tank through the flow guide holes 12 arranged in a circumferential array on the outer wall of the circular frame 11. This design makes the gas-liquid separation process more complete, greatly improving the condensate recovery efficiency, and at the same time reducing the residual amount of liquid droplets in the steam. A condensate outlet 4 is fixedly connected to the outer wall of the bottom of the recovery tank body 1, and the condensate outlet 4 is convenient for discharging the recovered condensate, facilitating subsequent operations.

[0023] An electric valve 5 is fixedly installed on the outer wall of the condensate outlet 4, and a liquid level sensor 15 is fixedly connected to the inner wall of the bottom of the recovery tank body 1. Both the liquid level sensor 15 and the electric valve 5 are electrically connected to an external controller. The liquid level sensor 15 can monitor the change of the condensate liquid level in the tank in real time and accurately. When the liquid level reaches the preset upper limit value, it quickly sends a signal to the controller, and the controller immediately controls the electric valve 5 to open to quickly discharge the condensate; when the liquid level drops to the preset lower limit value, the controller can timely control the electric valve 5 to close to stop draining. This not only realizes the efficient recovery of condensate, but also ensures that the liquid level in the recovery tank body 1 is always in a safe and stable operating range, effectively avoiding the situation of steam carrying liquid caused by too high liquid level or affecting the normal operation of the equipment due to too low liquid level.

[0024] Inner grooves 18 are provided on both inner walls of the mounting bracket 6. A spring member 19 is fixedly connected to the inner wall of the inner groove 18, and a clamping block 20 is movably installed in the inner groove 18 through the spring member 19. Card slots 10 adapted to the clamping blocks 20 are provided on both outer walls of the replacement frame 8. When the fiber felt 9 needs to be installed, the replacement frame 8 is docked with the installation groove 17, so that the clamping block 20 is squeezed by the replacement frame 8 until the clamping block 20 is engaged with the card slot 10, completing the installation of the fiber felt 9. When disassembling, the clamping block 20 is contracted by moving it, so that the clamping block 20 is separated from the card slot 10, completing its disassembly.

[0025] A through hole 16 is provided in the inner wall of the guide plate 14, and the guide plate 14 is designed in an arc shape. When the steam enters the interior, it will first impact the inner wall of the guide plate 14, separating a part of the condensate, and the condensate quickly flows into the lower area under the action of gravity through the through hole 16.

[0026] A pressure regulator 3 for pressure regulation is fixedly connected to the outer wall of the steam inlet 2. It can sensitively sense the pressure fluctuations in the steam pipe network, automatically and precisely regulate the steam pressure entering the recovery tank 1 without additional energy drive. When the network pressure rises, the pressure regulator 3 automatically reduces the steam intake volume to lower the pressure in the tank; when the network pressure drops, it automatically increases the steam intake volume to maintain the pressure stability in the tank, enabling the steam to enter the recovery tank 1 at a normal pressure.

[0027] The implementation principle of the steam pipe network condensate recovery tank in the embodiment of the present utility model application is as follows: The gas-liquid mixed steam in the steam pipe network is connected by a flange and enters the recovery tank 1 from the steam inlet 2. At this time, the arc-shaped guide plate 14 on the outer wall corresponding to the steam inlet 2 plays a key role. The steam flows along the arc-shaped surface of the guide plate 14. On the one hand, the guide plate 14 evenly diffuses the high-speed steam that originally concentrated on impacting a certain part of the tank body, reducing the impact of local high-speed air flow on the tank body; on the other hand, it gives the steam an initial rotational tendency, enabling it to maintain a certain rotational force and rise under the action of inertia and the arc-shaped wall surface. During the process of the steam impacting the inner wall of the guide plate 14, part of the condensate is separated from the steam due to inertia and flows into the lower area of the tank body under the action of gravity through the through hole 16 on the inner wall of the guide plate 14.

[0028] Subsequently, the steam with the initial rotational force continues to rise and encounters the swirl plates 13 fixedly connected to the inner walls of the two circular frames 11 inside the recovery tank 1. The swirl plates 13 make full use of the initial rotational force of the steam to further guide the steam to generate a strong spiral upward movement. Under the action of centrifugal force, the liquid droplets in the gas-liquid mixture are thrown towards the inner wall of the recovery tank 1, and then quickly flow to the bottom of the tank through the diversion holes 12 circumferentially arranged on the outer wall of the circular frame 11. Through this process, the gas-liquid separation is more sufficient, the condensate recovery efficiency is greatly improved, and the liquid droplet residue in the steam is significantly reduced.

[0029] After the initial gas-liquid separation is completed, the steam rises to the top of the recovery tank body 1 and reaches the steam outlet 7. A replacement frame 8 is installed on the mounting bracket 6 on the outer wall of the steam outlet 7 through the mounting groove 17, and the fiber felt 9 fixedly connected to the outer wall of the replacement frame 8 starts to play a role. Relying on its extremely high specific surface area and unique pore structure, the fiber felt 9 uses mechanisms such as interception, adsorption, and diffusion to efficiently intercept the remaining tiny liquid droplets and impurity particles in the steam, greatly reducing the liquid content in the steam, avoiding the phenomenon of steam carrying liquid, and enabling the purified steam to be discharged from the steam outlet 7.

[0030] At the bottom of the recovery tank body 1, the condensate water outlet 4 is used to discharge the recovered condensate water. The electric valve 5 installed on its outer wall and the liquid level sensor 15 fixedly connected to the inner wall of the bottom are both electrically connected to an external controller. The liquid level sensor 15 accurately monitors the liquid level of the condensate water in the tank in real time. When the liquid level reaches the preset upper limit value, it sends a signal to the controller, and the controller controls the electric valve 5 to open to discharge the condensate water; when the liquid level drops to the preset lower limit value, the controller controls the electric valve 5 to close to stop draining water, so as to ensure the efficient recovery of the condensate water and the stability of the liquid level in the tank.

[0031] In addition, the pressure regulator 3 on the outer wall of the steam inlet 2 senses the pressure fluctuations in the steam pipe network in real time. When the pipe network pressure rises, it automatically reduces the steam inlet volume and lowers the pressure in the tank; when the pipe network pressure drops, it automatically increases the steam inlet volume and maintains the pressure in the tank stable, ensuring that the steam enters the recovery tank body 1 at an appropriate pressure and guaranteeing the safe and stable operation of the equipment.

[0032] When the fiber felt 9 needs to be maintained and replaced, move the clamping block 20 inward to make it contract, and the clamping block 20 is separated from the clamping grooves 10 on both sides of the replacement frame 8, then the replacement frame 8 can be taken out from the mounting groove 17 of the mounting bracket 6; during installation, dock the replacement frame 8 with the mounting groove 17, and the replacement frame 8 presses the clamping block 20 until the clamping block 20 is engaged with the clamping groove 10, completing the rapid installation and replacement of the fiber felt 9 and ensuring that the gas-liquid separation and filtration effects of the equipment remain good continuously.

Claims

1. A condensate recovery tank for a steam pipeline network, comprising a recovery tank body (1), characterized in that: The outer side wall of the recovery tank body (1) is provided with a steam inlet (2). The inner wall of the recovery tank body (1) is fixedly connected with a guide plate (14). One end of the guide plate (14) corresponds to the steam inlet (2). And the outer wall of the top of the recovery tank body (1) is provided with a steam outlet (7). The outer wall of the steam outlet (7) is fixedly connected with a mounting frame (6). The outer wall of the mounting frame (6) is provided with a mounting groove (17). The mounting frame (6) is provided with a replacement frame (8) through the mounting groove (17). The inner wall of the replacement frame (8) is fixedly installed with a fiber felt (9). Two circular frames (11) are fixedly connected inside the recovery tank body (1). A plurality of swirl plates (13) are fixedly connected to the inner walls of the two circular frames (11). A plurality of diversion holes (12) are arranged in a circumferential array on the outer walls of the two circular frames (11). The outer wall of the bottom of the recovery tank body (1) is fixedly connected with a condensate water outlet (4).

2. The condensate recovery tank for a steam pipe network according to claim 1, characterized in that: An electric valve (5) is fixedly installed on the outer wall of the condensate water outlet (4). And a liquid level sensor (15) is fixedly connected to the inner wall of the bottom of the recovery tank body (1). Both the liquid level sensor (15) and the electric valve (5) are electrically connected to an external controller.

3. A condensate recovery tank for a steam pipeline network according to claim 1, characterized in that: Inner grooves (18) are provided on both inner walls of the mounting frame (6). A spring member (19) is fixedly connected to the inner wall of the inner groove (18). And a clamping block (20) is movably installed in the inner groove (18) through the spring member (19). Card slots (10) adapted to the clamping blocks (20) are provided on both outer walls of the replacement frame (8).

4. A condensate recovery tank for a steam pipe network according to claim 1, characterized in that: A through hole (16) is provided in the inner wall of the guide plate (14). And the guide plate (14) is designed in an arc shape.

5. A condensate recovery tank for a steam pipe network according to claim 1, characterized in that: A pressure regulator (3) for pressure regulation is fixedly connected to the outer wall of the steam inlet (2).

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