CN215982496U - Heat recovery device of deaerator - Google Patents

Abstract

The application discloses heat recovery unit of oxygen-eliminating device includes: the steam pipe extends into the deaerator body, the bottom of the steam pipe is connected with a plurality of drain pipes, and the first exhaust port and the second exhaust port are jointly connected with an air outlet pipe; the shaft seal heater comprises a heat source channel and a heated channel, wherein a heat source inlet and a first liquid outlet are formed in the heat source channel, an air outlet pipe is communicated with the heat source inlet, and an upper exhaust port and a second liquid outlet are formed in the heated channel. The device has solved among the prior art exhaust gas direct emission to the atmosphere in the oxygen-eliminating device, not only causes calorific loss, produces the waste, causes the problem of bad influence to the environment moreover.

Description

Heat recovery device of deaerator

Technical Field

The application relates to the field of power plant equipment, in particular to a heat recovery device of a deaerator.

Background

If oxygen is dissolved in water in a boiler of a thermal power plant, metal in contact with the water is corroded, and if gas is accumulated in a heat exchanger, heat resistance of heat transfer is increased, and heat transfer effect of equipment is reduced. The deaerator can remove oxygen and other non-condensable gases in the boiler feed water to ensure the quality of the feed water. Dissolved oxygen and other gases separated out from water by the existing deaerator are continuously discharged from an exhaust port at the top of the deaerator and are generally discharged to the atmosphere. Because the other part of the waste gas is high in temperature (about 190 ℃), the waste gas is directly discharged into the atmosphere, which not only causes heat loss and waste, but also has adverse effects on the environment.

Therefore, the heat recovery device of the deaerator solves the problems.

SUMMERY OF THE UTILITY MODEL

The application provides a heat reclamation device of oxygen-eliminating device has solved among the prior art direct emission of combustion gas to the atmosphere in the oxygen-eliminating device, not only causes calorific loss, produces extravagantly, causes the problem of bad influence to the environment moreover.

For solving above-mentioned technical problem, the application provides a heat reclamation device of oxygen-eliminating device includes: the steam pipe extends into the deaerator body, the bottom of the steam pipe is connected with a plurality of drain pipes, and the first exhaust port and the second exhaust port are jointly connected with an air outlet pipe; the shaft seal heater comprises a heat source channel and a heated channel, wherein the heat source channel is provided with a heat source inlet and a first liquid outlet, the air outlet pipe is communicated with the heat source inlet, and the heated channel is provided with an upper exhaust port and a second liquid outlet.

As a further scheme, one end of the heat source channel is provided with a maintenance door, and a handle is installed on the maintenance door.

As a further scheme, the method further comprises the following steps: the deaerator body is provided with a clean discharge port.

As a further scheme, the method further comprises the following steps: the deaerator body is provided with a safety valve port and a thermometer port.

As a further scheme, the bottom of the deaerator body is fixedly connected with a support.

As a further scheme, gaskets are arranged at the bottoms of the heat source channel and the heated channel, the bottom of each gasket is fixedly connected with a supporting leg, and end plates are arranged at the bottoms of the two supporting legs together.

Compare in prior art, the heat reclamation device of oxygen-eliminating device that this application provided includes: the steam pipe extends into the deaerator body, the bottom of the steam pipe is connected with a plurality of drain pipes, and the first exhaust port and the second exhaust port are jointly connected with an air outlet pipe; the shaft seal heater comprises a heat source channel and a heated channel, wherein a heat source inlet and a first liquid outlet are formed in the heat source channel, an air outlet pipe is communicated with the heat source inlet, and an upper exhaust port and a second liquid outlet are formed in the heated channel.

When the device is used, condensed water enters the deaerator from the first water inlet and the second water inlet and performs mixed heat transfer and mass transfer with steam entering from the steam pipe from top to bottom, and dissolved oxygen and other gases in water enter the heat source channel through the air outlet pipe after being discharged from the first exhaust pipe and the second exhaust pipe, so that the heated channel is heated. Therefore, the device conducts the heat discharged from the deaerator to the shaft seal heater for heat utilization, avoids heat loss and waste, and cannot directly discharge the heat to the air to cause adverse effects on the environment.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.

Fig. 1 is a schematic structural diagram of a heat recovery device of a deaerator provided in an embodiment of the present invention.

In the figure: 1 deaerator body, 11 first water inlet, 12 second water inlet, 13 first exhaust port, 14 second exhaust port, 15 steam inlet, 16 first water outlet, 17 second water outlet, 151 steam pipe, 152 drain pipe, 3 air outlet pipe, 21 heat source channel, 22 heated channel, 211 heat source inlet, 212 first liquid outlet, 221 upper exhaust port, 222 second liquid outlet, 215 maintenance door, 216 handle, 19 exhaust port, 191 safety valve port, 192 thermometer port, 101 support, 25 gasket, 251 landing leg, 26 end plate.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

The core of this application is to provide a heat reclamation device of oxygen-eliminating device, can solve among the prior art the direct emission of combustion gas to the atmosphere in the oxygen-eliminating device, not only cause calorific loss, produce extravagantly, cause the problem of bad influence to the environment moreover.

Fig. 1 is a schematic structural diagram of a heat recovery device of a deaerator provided in an embodiment of the present invention. As shown in fig. 1, includes: the deaerator comprises a deaerator body 1 and a shaft seal heater 2, wherein a first water inlet 11, a second water inlet 12, a first exhaust port 13, a second exhaust port 14 and a steam inlet 15 are arranged at the upper end of the deaerator body 1, a first water outlet 16 and a second water outlet 17 are arranged at the bottom of the deaerator body 1, a steam pipe 151 is connected to the steam inlet 15, the steam pipe 151 extends into the deaerator body 1, a plurality of drain pipes 152 are connected to the bottom of the steam pipe 151, and an air outlet pipe 3 is jointly connected to the first exhaust port 13 and the second exhaust port 14; the shaft seal heater 2 comprises a heat source channel 21 and a heated channel 22, wherein the heat source channel 21 is provided with a heat source inlet 211 and a first liquid outlet 212, the gas outlet pipe 3 is communicated with the heat source inlet 211, and the heated channel 22 is provided with an upper gas outlet 221 and a second liquid outlet 222.

In detail, the first water inlet 11 and the second water inlet 12 arranged on the deaerator body 1 are two inlets of condensed water, and the flow is adjusted through a water inlet adjusting valve when the condensed water enters, so that the condensed water entering the deaerator body 1 is mixed with other hydrophobic water. The steam enters from the steam pipe 151 from top to bottom and is discharged from the drain pipe 152, and then forms a skirt-shaped water film with the deaerator body 1. Dissolved oxygen and other gases separated out in the deaerator body 1 are discharged from a first exhaust port 13 and a second exhaust port 14 at the top of the deaerator body 1. As a further scheme, the method further comprises the following steps: the deaerator body 1 is provided with a clean discharge port 19. The discharging port 19 is used as an impurity outlet for discharging impurities in the deaerator body 1. In view of avoiding the temperature in the deaerator body 1 from being too high, as a further scheme, the deaerator further comprises: the deaerator body 1 is provided with a relief valve port 191 and a thermometer port 192. When the temperature on the thermometer port 192 is measured to exceed the relief temperature, the relief valve port 191 is opened. As a further scheme, a support 101 is fixedly connected to the bottom of the deaerator body 1.

In detail, the shaft seal heater 2 comprises a heat source channel 21 and a heated channel 22, the heat source channel 21 is provided with a heat source inlet 211 and a first liquid outlet 212, and the gas outlet pipe 3 is communicated with the heat source inlet 211. The high-temperature heat discharged from the deaerator body 1 enters the heat source channel 21 from the air outlet pipe 3, heats the condensate water to be heated in the heated channel 22, and recovers the heat. As a further alternative, one end of the heat source passage 21 is provided with a maintenance door 215, and a handle 216 is mounted on the maintenance door 215. The provision of the service door 215 facilitates servicing. An upper exhaust port 221 provided in the heat receiving path 22 is used for exhaust. The second liquid outlet 222 is used for discharging the heat-exchanged liquid. As a further scheme, the bottoms of the heat source channel 21 and the heat receiving channel 22 are provided with gaskets 25, the bottom of each gasket 25 is fixedly connected with a support leg 251, and the bottoms of the two support legs 251 are jointly provided with an end plate 26. The arrangement of this structure enables the shaft seal heater 2 to be more stably fixed to the ground.

Compare in prior art, the heat recovery unit of oxygen-eliminating device that this application provided, the condensate water carries out hybrid heat transfer and mass transfer with the steam from top to bottom from the steam pipe entering in getting into from first water inlet and second water inlet entering oxygen-eliminating device, and dissolved oxygen and other gases in the aquatic get into the heat source passageway through the outlet duct after first blast pipe and the discharge of second blast pipe in, and then heat the passageway of being heated. Therefore, the device conducts the heat discharged from the deaerator to the shaft seal heater for heat utilization, avoids heat loss and waste, and cannot directly discharge the heat to the air to cause adverse effects on the environment.

In the description of the application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may for example be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.

Claims (6)

1. A heat recovery device for a deaerator, comprising: the steam pipe extends into the deaerator body, the bottom of the steam pipe is connected with a plurality of drain pipes, and the first exhaust port and the second exhaust port are jointly connected with an air outlet pipe; the shaft seal heater comprises a heat source channel and a heated channel, wherein the heat source channel is provided with a heat source inlet and a first liquid outlet, the air outlet pipe is communicated with the heat source inlet, and the heated channel is provided with an upper exhaust port and a second liquid outlet.

2. The deaerator heat recovery device of claim 1, wherein a maintenance door is provided at one end of the heat source channel, and a handle is mounted on the maintenance door.

3. The oxygen scavenger heat recovery device of claim 1 further comprising: the deaerator body is provided with a clean discharge port.

4. The oxygen scavenger heat recovery device of claim 1 further comprising: the deaerator body is provided with a safety valve port and a thermometer port.

5. The deaerator heat recovery device of claim 1, wherein a support is fixedly connected to a bottom of the deaerator body.

6. The heat recovery device of the deaerator as claimed in claim 1, wherein gaskets are disposed at bottoms of the heat source channel and the heat receiving channel, a supporting leg is fixedly connected to a bottom of each gasket, and end plates are mounted at bottoms of two supporting legs together.

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