Condenser with dead steam leading-out function

Abstract

A condenser with a dead steam leading-out function comprises a condenser body and a dead steam leading-out mechanism, the condenser body comprises a shell, a water inlet cavity and a water outlet cavity which are communicated through a plurality of water guide pipes are formed in the shell, the outer sides of the water guide pipes are sleeved with steam inlet cavities, and the steam inlet cavities are provided with a steam inlet, a steam leading opening and a water drainage opening I; the dead steam leading-out mechanism comprises a dead steam leading-out box, the bottom of the dead steam leading-out box communicates with the steam leading opening through a dead steam leading-out pipeline, a water inlet pipeline is installed on the top of the dead steam leading-out box, and the bottom of the water inlet pipeline is arranged in the dead steam leading-out box and fixedly communicates with a transversely-arranged water outlet pipeline. The top of the water inlet pipeline is arranged outside the dead steam leading-out box and is externally connected with a desalted water supply pipeline through a rotary joint, and a steam exhaust port is further formed in the top of the dead steam leading-out box. According to the condenser, non-condensed gas and part of dead steam which is not completely condensed in the condenser can be led out, high vacuum in the condenser is kept, and it is ensured that the condensation process is continuously and efficiently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of condensers, in particular to a condenser with an exhaust steam extraction function. Background Art

[0002] In the condenser, the exhaust steam comes into contact with external cooling water, releasing heat through heat dissipation, causing its temperature to drop below the saturation temperature and then condensing into water. During this process, the exhaust steam will continue to release heat until it is completely condensed. At the same time, the heat of the exhaust steam will be transferred to the cooling water, causing the cooling water temperature to rise. Afterwards, the cooled water will be used again to heat the other side of the boiler, thereby improving the thermal efficiency of the entire boiler system.

[0003] However, in practical applications, traditional condensers have some limitations when processing exhaust steam. For example, when the exhaust steam contains a large amount of non-condensable gases, these gases will accumulate in the condenser, causing the vacuum degree of the condenser to decrease, which not only affects the condensation effect but also shortens the service life of the condenser. Utility Model Content

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the existing technology and provide a condenser with an exhaust steam extraction function, which can extract the non-condensable gas in the condenser and some of the exhaust steam that has not been completely condensed, thereby maintaining a high vacuum inside the condenser and ensuring the continuous and efficient condensation process.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solution. The present invention is a condenser with an exhaust steam extraction function, comprising a condenser body and an exhaust steam extraction mechanism for cooperating with the condenser body. The condenser body comprises an outer shell, within which are disposed a water inlet chamber and a water outlet chamber connected by a plurality of water pipes. A steam inlet chamber is sheathed on the outer side of the water pipes. The steam inlet chamber is provided with a steam inlet for exhaust steam input, a steam inlet for exhaust steam extraction, and a drain port I for condensate discharge. A steam trap I is installed on the steam inlet chamber at the drain port I.

[0006] The exhaust steam extraction mechanism includes an exhaust steam extraction box, the bottom of which is connected to the steam inlet through an exhaust steam extraction pipe, a exhaust steam extraction control valve is installed on the exhaust steam extraction pipe, a vertically arranged water inlet pipe is installed on the top of the exhaust steam extraction box, the water inlet pipe is installed on the exhaust steam extraction box through a rotary seal, the bottom of the water inlet pipe is arranged in the exhaust steam extraction box and is fixedly connected to a horizontally arranged water outlet pipe, the top of the water inlet pipe is arranged outside the exhaust steam extraction box and is externally connected to a desalted water supply pipe through a rotary joint, a power device for driving the water inlet pipe to rotate is also installed on the exhaust steam extraction box, a steam exhaust port is also provided at the top of the exhaust steam extraction box, and a drain port II with a steam trap II is also provided at the bottom of the exhaust steam extraction box.

[0007] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned condenser with exhaust steam outlet function, the exhaust steam outlet control valve is a timed on / off valve.

[0008] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the condenser with exhaust steam outlet function described above, a rotary nozzle is further installed at the bottom of the exhaust steam outlet box, and the rotary nozzle is connected to the exhaust steam outlet pipe.

[0009] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the condenser with exhaust steam outlet function described above, water outlet nozzles are installed at the bottom and side of the outlet pipe.

[0010] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the above-mentioned condenser with exhaust steam extraction function, the power device is a reduction motor, and the motor shaft of the reduction motor is drivingly connected to the water inlet pipe.

[0011] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the condenser with exhaust steam outlet function described above, a pressure regulating valve is installed on the exhaust steam outlet box at the exhaust port.

[0012] The technical problem to be solved by the present invention can be further achieved through the following technical solutions. For the condenser with exhaust steam outlet function described above, the exhaust steam outlet box is cylindrical as a whole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] First, the utility model is provided with an exhaust steam outlet mechanism, which can flexibly lead part of the exhaust steam out of the steam inlet for further processing or recycling. This not only helps to optimize the steam flow and condensation process inside the condenser, improve the overall heat exchange efficiency and condensation effect, but also increases the adaptability of the condenser under different working conditions, so that it can better meet various operating requirements.

[0015] Secondly, the installation of the exhaust steam extraction control valve allows for precise control of the exhaust steam extraction rate, thereby avoiding unnecessary energy loss. At the same time, the recycling of exhaust steam can reduce steam emissions into the atmosphere and reduce environmental pollution.

[0016] In addition, through designs such as rotary seals and rotary joints, the water inlet pipe can be connected to an external desalted water supply pipe to provide clean cooling water, further improving heat exchange efficiency and equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the exhaust steam outlet box of the present utility model. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments 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.

[0020] Reference Figure 1-2 , a condenser with exhaust steam extraction function, including a condenser body and an exhaust steam extraction mechanism for cooperating with the condenser body. The condenser body is a core component, including an outer shell 1, which is used to provide solid protection and ensure the stable operation of the internal structure. A water inlet chamber 2 and a water outlet chamber 3 connected by a plurality of water pipes 4 are provided in the outer shell 1. The water pipes 4 are not only used to realize the flow of cooling water between the water inlet chamber 2 and the water outlet chamber 3, but also used to exchange heat with the exhaust steam to realize heat recovery of the exhaust steam. A steam inlet chamber 5 is provided on the outer side of the water pipe 4. A steam inlet port for exhaust steam input, a steam inlet port for exhaust steam extraction and a drain port 1 for condensed water discharge are provided on the steam inlet chamber 5. A drain valve 16 is installed on the steam inlet chamber 5 at the drain port 1 to ensure that the condensed water can be discharged smoothly and avoid unnecessary water accumulation inside the condenser body.

[0021] The exhaust steam extraction mechanism includes an exhaust steam extraction box 9, the bottom of which is connected to the steam inlet through an exhaust steam extraction pipe 7, so as to facilitate the extraction of exhaust steam (including non-condensable gas) in the condenser body as needed, thereby reducing the pressure of the condenser body and helping to extend its service life. A exhaust steam extraction control valve 8 is installed on the exhaust steam extraction pipe 7 for controlling the opening and closing of the exhaust steam extraction pipe 7 as needed to achieve accurate control of the exhaust steam extraction amount. Preferably, the exhaust steam extraction control valve 8 is a timed on / off valve;

[0022] A vertically arranged water inlet pipe 10 is installed on the top of the exhaust steam outlet box 9. The water inlet pipe 10 is installed on the exhaust steam outlet box 9 through a rotary seal. The bottom of the water inlet pipe 10 is arranged in the exhaust steam outlet box 9 and is fixedly connected to a horizontally arranged water outlet pipe 11. The top of the water inlet pipe 10 is arranged outside the exhaust steam outlet box 9 and is connected to the desalted water supply pipe through a rotary joint 14. A power device 13 for driving the water inlet pipe 10 to rotate is also installed on the exhaust steam outlet box 9. The power device 13 is used to drive the water inlet pipe 10 to drive the water outlet pipe 11 to rotate in the exhaust steam outlet box 9 to facilitate uniform spraying of cooling water. Preferably, water outlet nozzles 12 are installed at the bottom and sides of the water outlet pipe 11 to ensure that the cooling water can fully cover every corner in the exhaust steam outlet box 9, further improving the condensation effect; the provision of the rotary joint 14 facilitates the delivery of desalted water as cooling water to the water inlet pipe 10 without affecting the rotation of the water inlet pipe 10;

[0023] Preferably, the power device 13 is a reduction motor, and the motor shaft of the reduction motor is connected to the water inlet pipe 10 through a transmission gear, so that the water inlet pipe 10 can be driven to rotate by the reduction motor as needed.

[0024] In order to better realize the heat recovery of exhaust steam, a rotary nozzle 16 is also installed at the bottom of the exhaust steam outlet box 9. The rotary nozzle 16 is connected to the exhaust steam outlet pipe 7. When the exhaust steam enters the exhaust steam outlet box 9 through the pipe, the rotary nozzle 16 can spray it evenly in the exhaust steam outlet box 9, thereby improving the contact area with the cooling water and the heat exchange efficiency.

[0025] A steam exhaust port is provided at the top of the exhaust steam outlet box 9 for discharging the remaining exhaust steam (including non-condensable gas) in the exhaust steam outlet box 9. A pressure regulating valve 15 is installed on the exhaust steam outlet box 9 at the steam exhaust port, so that the exhaust port can be opened regularly to exhaust steam according to the pressure in the exhaust steam outlet box 9 using the pressure regulating valve 15. A drain port II with a drain valve II 17 is provided at the bottom of the exhaust steam outlet box 9 for discharging condensed water in the exhaust steam outlet box 9.

[0026] In actual use, the exhaust steam outlet box 9 is cylindrical as a whole, which not only has a simple and elegant appearance, but also ensures full utilization of the internal space and structural stability. At the same time, this design also facilitates subsequent maintenance and overhaul work, reducing operational difficulty and cost.

[0027] The actual use process of the condenser with exhaust steam extraction function provided by the utility model is as follows:

[0028] 1. Exhaust steam input and condensation:

[0029] The exhaust steam from the steam turbine enters the steam inlet cavity 5 of the condenser body through the steam inlet;

[0030] The cooling water flows outside the steam inlet cavity 5 through the water guide pipe 4, exchanges heat with the exhaust steam, and gradually condenses the exhaust steam into water;

[0031] 2. Exhaust steam extraction and recovery:

[0032] When the exhaust steam condenses to a certain extent in the steam inlet chamber 5, the exhaust steam outlet control valve 8 of the timer switch will automatically open according to the preset time;

[0033] Part of the exhaust steam enters the exhaust steam outlet pipe 7 through the steam inlet and is evenly sprayed into the exhaust steam outlet box 9 under the action of the rotary nozzle 16;

[0034] At the same time, the desalted water enters the exhaust steam outlet box 9 through the water inlet pipe 10, and further exchanges heat with the sprayed exhaust steam to improve the condensation effect;

[0035] 3. Cooling water circulation and discharge:

[0036] After the cooling water exchanges heat with the exhaust steam and desalted water in the exhaust steam outlet box 9, the temperature rises and forms hot water;

[0037] The hot water is discharged from the exhaust steam outlet box 9 through the outlet pipe 11 and the outlet nozzle 12 and output to the outside for external use;

[0038] At the drain port I, the steam trap I6 ensures that the condensed water can be discharged smoothly from the condenser body to avoid water accumulation.

[0039] 4. Pressure regulation and exhaust:

[0040] The pressure regulating valve 15 monitors the pressure in the exhaust steam outlet box 9 in real time and adjusts the valve opening as needed to maintain the pressure in the box stable;

[0041] When the pressure inside the exhaust steam outlet box 9 is too high, the excess steam will be discharged through the exhaust port to ensure the safe operation of the entire device.

[0042] Through the above specific usage process, the condenser can efficiently condense, extract and recycle the exhaust steam, while ensuring the stable operation and safety performance of the equipment.

Claims

1. A condenser with exhaust steam extraction function, characterized by: The condenser body includes a condenser body and an exhaust steam outlet mechanism for cooperating with the condenser body. The condenser body includes an outer shell, in which a water inlet chamber and a water outlet chamber connected by a plurality of water pipes are provided. A steam inlet chamber is provided on the outer side of the water pipes. The steam inlet chamber is provided with a steam inlet for exhaust steam input, a steam inlet for exhaust steam outlet, and a drain port I for condensate discharge. A steam trap I is installed on the steam inlet chamber at the drain port I. The exhaust steam extraction mechanism includes an exhaust steam extraction box, the bottom of which is connected to the steam inlet through an exhaust steam extraction pipe, a exhaust steam extraction control valve is installed on the exhaust steam extraction pipe, a vertically arranged water inlet pipe is installed on the top of the exhaust steam extraction box, the water inlet pipe is installed on the exhaust steam extraction box through a rotary seal, the bottom of the water inlet pipe is arranged in the exhaust steam extraction box and is fixedly connected to a horizontally arranged water outlet pipe, the top of the water inlet pipe is arranged outside the exhaust steam extraction box and is externally connected to a desalted water supply pipe through a rotary joint, a power device for driving the water inlet pipe to rotate is also installed on the exhaust steam extraction box, a steam exhaust port is also provided at the top of the exhaust steam extraction box, and a drain port II with a steam trap II is also provided at the bottom of the exhaust steam extraction box.

2. The condenser with exhaust steam extraction function according to claim 1, characterized in that: The exhaust steam outlet control valve is a timed on / off valve.

3. The condenser with exhaust steam extraction function according to claim 1, characterized in that: A rotary nozzle is also installed at the bottom of the exhaust steam outlet box, and the rotary nozzle is connected to the exhaust steam outlet pipe.

4. The condenser with exhaust steam extraction function according to claim 1 or 3, characterized in that: Water outlet nozzles are installed at the bottom and sides of the water outlet pipe.

5. The condenser with exhaust steam extraction function according to claim 1, characterized in that: The power device is a reduction motor, and the motor shaft of the reduction motor is drivingly connected to the water inlet pipe.

6. The condenser with exhaust steam extraction function according to claim 1, characterized in that: A pressure regulating valve is installed on the exhaust steam outlet box at the exhaust port.

7. The condenser with exhaust steam extraction function according to claim 1, characterized in that: The exhaust steam outlet box is cylindrical in shape as a whole.

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