CN209744395U

CN209744395U - Flue condensed water discharge device

Info

Publication number: CN209744395U
Application number: CN201920267878.XU
Authority: CN
Inventors: 沈兴中; 隋良红; 黄建琼
Original assignee: CHINESE INST OF TEST TECHNOLOGY
Current assignee: CHINESE INST OF TEST TECHNOLOGY
Priority date: 2019-03-02
Filing date: 2019-03-02
Publication date: 2019-12-06
Anticipated expiration: 2029-03-02

Abstract

The utility model relates to a flue comdenstion water eduction gear has the advantage of real-time discharge comdenstion water. Including locating the low-lying district of flue turning point department, its characterized in that, low-lying district bottom intercommunication has the drainage tube, the one end intercommunication that the low-lying district was kept away from to the drainage tube has the header tank, header tank bottom intercommunication has first drain pipe, be equipped with the drain valve between first drain pipe and the header tank, the drainage tube lateral wall has the breather pipe with the flue intercommunication.

Description

Flue condensed water discharge device

Technical Field

The utility model relates to a flue comdenstion water treatment technical field especially relates to a flue comdenstion water eduction gear.

Background

After the natural gas is combusted, the components of the flue gas mainly consist of water vapor, CO2 and a small amount of sulfide and nitride. Under normal conditions, the temperature of the exhaust smoke cannot be lower than 110 ℃, otherwise, water vapor in the exhaust smoke can be condensed into water to be separated out and deposited at the low-lying part of a flue, so that the exhaust smoke channel is narrowed, the exhaust smoke is not smooth, and the excess oxygen coefficient in the slush molding furnace cavity is reduced. This requires a larger amount of air to compensate for the lack of oxygen in the furnace chamber, and the higher the amount of air, the lower the temperature in the furnace chamber, and the larger the amount of natural gas used to ensure the required temperature for the production in the furnace.

Therefore, a condensed water discharge device must be added, otherwise, although the electric energy consumption is reduced by the flue gas waste heat secondary recycling system, the consumption of natural gas is increased, and the actual energy-saving benefit is very low. And, along with the increase of ponding in the flue, ponding probably can flow backward the slush molding stove, causes stifled stove even the kiln chamber of exploding, has huge potential safety hazard.

In the prior art, a low-lying area is artificially manufactured at the corner of a flue, a drainage and condensate water discharge device is additionally arranged in the low-lying area, and condensate water accumulated in the flue is led to the lower part of a slush molding furnace and is controlled to be discharged through a valve. However, the device cannot realize real-time discharge, because if the device needs to discharge in real time, the flue gas can be discharged to a low-pressure area at the same time, and the heat recovery effect is influenced. Therefore, the condensed water drain apparatus can only perform a relieving function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flue comdenstion water eduction gear has the advantage of discharging the comdenstion water in real time.

The above object of the present invention can be achieved by the following technical solutions:

The utility model provides a flue comdenstion water eduction gear, is including locating the low-lying district of flue turning point department, low-lying district bottom intercommunication has the drainage tube, the one end intercommunication that the low-lying district was kept away from to the drainage tube has the header tank, header tank bottom intercommunication has first drain pipe, be equipped with the drain valve between first drain pipe and the header tank, the drainage tube lateral wall has the breather pipe with the flue intercommunication.

Implement above-mentioned technical scheme, drainage tube and header tank form the enclosure space to realize the steady voltage through the breather pipe, make the comdenstion water collect in can flowing into the header tank along low-lying district and drainage tube in real time, open the drain valve and discharge through first drain pipe after the water in the header tank accumulates to a certain extent. The vent pipe also enables part of smoke in the flue to circulate in the draft tube and the water collecting tank so as to absorb water vapor in the part of smoke.

Furthermore, a one-way air valve used for leading the air flow direction to be from the drainage tube to the flue is arranged in the vent pipe.

Implement above-mentioned technical scheme, make the flow of flue gas have the directionality, can not be at breather pipe and drainage tube both ends convection current.

Further, the breather pipe slope sets up and the breather pipe is close to the one end of drainage tube and is less than the one end that is close to the flue.

by implementing the technical scheme, the condensed water flowing in the drainage tube can not flow back to the flue through the ventilating pipe.

Furthermore, the height direction of the side wall of the water collecting tank is provided with an observation window, and the observation window is covered with a transparent plate.

Implement above-mentioned technical scheme, see through the water level in the transparent plate can observe the header tank, but the higher messenger of water level manually opens the drain valve, discharges the water in the header tank.

Furthermore, the transparent plate is provided with scale marks for indicating the height of the water level along the height direction of the transparent plate.

Implement above-mentioned technical scheme, can observe and count the rising liquid level of comdenstion water in the header tank a period of time through the scale mark.

Furthermore, a floating ball liquid level switch is arranged in the water collecting tank, the bottom of the water collecting tank is communicated with a second water discharging pipe, an electromagnetic valve is arranged between the second water discharging pipe and the water collecting tank and controlled by the floating ball liquid level switch, the electromagnetic valve is controlled to be opened when the floating ball liquid level switch reaches an upper liquid level limit value, and the electromagnetic valve is controlled to be closed when the floating ball liquid level switch reaches a lower liquid level limit value.

By implementing the technical scheme, when the liquid level rises to the upper limit value of the liquid level of the floating ball liquid level switch, the electromagnetic valve automatically opens to drain water, so that the water in the water collecting tank does not need to be artificially discharged.

To sum up, the utility model discloses following beneficial effect has:

(1) The drainage tube and the water collecting tank form a closed space, and pressure stabilization is realized through the vent pipe, so that condensed water can flow into the water collecting tank along the low-lying area and the drainage tube in real time for collection without loss of smoke heat, and when water in the water collecting tank is accumulated to a certain degree, the drainage valve is opened to drain the water through the first drainage pipe;

(2) the vent pipe also enables part of smoke in the flue to circulate in the draft tube and the water collecting tank so as to absorb water vapor in the part of smoke.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial sectional view of the present invention.

Reference numerals: 1. a low-lying area; 2. a drainage tube; 3. a water collection tank; 4. a first drain pipe; 5. a drain valve; 6. a breather pipe; 7. a one-way air valve; 8. an observation window; 9. a transparent plate; 10. a float ball liquid level switch; 11. a second drain pipe; 12. an electromagnetic valve.

Detailed Description

The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings.

A flue condensed water discharge device is shown in figure 1 and comprises a low-lying area 1, a drainage pipe 2, a water collecting tank 3, a first drainage pipe 4 and a ventilation pipe 6. The low-lying region 1 is arranged at the corner of the flue, the flue is L-shaped as in the figure, the low-lying region 1 is arranged at the bottom of a pipeline which is transverse to the flue, the drainage tube 2 is communicated with the bottom plate of the low-lying region 1, the water collecting tank 3 is communicated with one end, far away from the low-lying region 1, of the drainage tube 2, the bottom of the water collecting tank 3 is communicated with the first drainage tube 4, and the drainage valve 5 for controlling the on-off of the first drainage tube 4 is arranged between the first drainage tube 4 and the water collecting tank 3.

A vent pipe 6 is communicated between the drainage pipe 2 and the flue, the vent pipe 6 is obliquely arranged, and one end communicated with the drainage pipe 2 is lower than one end communicated with the vent pipe 6. In order to make the smoke flow directional and not to convect at the two ends of the vent pipe 6 and the drainage pipe 2, a one-way air valve 7 is arranged in the vent pipe 6. The vent pipe 6 circulates part of the smoke in the flue in the drainage pipe 2 and the water collecting tank 3 to absorb water vapor in the part of the smoke.

as shown in fig. 2, in order to conveniently observe the water level in the water collecting tank 3 to open the drain valve 5, an observation window 8 is arranged in the height direction of the side wall of the water tank, a transparent plate 9 is covered on the observation window 8, and the transparent plate 9 is provided with scale marks for indicating the height of the water level along the height direction thereof.

As shown in fig. 2, a floating ball liquid level switch 10 is arranged in the water collection tank 3, the bottom of the water collection tank 3 is communicated with a second water discharge pipe 11, an electromagnetic valve 12 is arranged between the second water discharge pipe 11 and the water collection tank 3, the electromagnetic valve 12 is controlled by the floating ball liquid level switch 10, the electromagnetic valve 12 is controlled to be opened when the floating ball liquid level switch 10 reaches an upper liquid level limit value, and the electromagnetic valve 12 is controlled to be closed when the floating ball liquid level switch 10 reaches a lower liquid level limit value.

The working principle is as follows: drainage tube 2 forms the enclosure space with header tank 3 to realize the steady voltage through breather pipe 6, make the comdenstion water can collect the thermal loss of flue gas simultaneously in flowing into header tank 3 along low-lying district 1 and drainage tube 2 in real time, can manually open drain valve 5 and discharge through first drain pipe 4 after the water in the header tank 3 accumulates to a certain extent, also can rise when the liquid level to the liquid level upper limit value of floater liquid level switch 10 when the liquid level, solenoid valve 12 opens the drain automatically.

Claims

1. The utility model provides a flue comdenstion water eduction gear, is including locating low-lying district (1) of flue turning point department, its characterized in that, low-lying district (1) bottom intercommunication has drainage tube (2), the one end intercommunication that low-lying district (1) was kept away from in drainage tube (2) has header tank (3), header tank (3) bottom intercommunication has first drain pipe (4), be equipped with between first drain pipe (4) and header tank (3) drain valve (5), drainage tube (2) lateral wall and flue intercommunication have breather pipe (6).

2. A flue condensation water drain device according to claim 1, characterized in that a one-way air valve (7) is provided in the air pipe (6) for directing the air flow from the draft tube (2) to the flue.

3. A flue condensation water draining device according to claim 2, characterized in that the air pipe (6) is arranged obliquely and the end of the air pipe (6) near the draft tube (2) is lower than the end near the flue.

4. The flue condensed water discharge device according to claim 1, characterized in that the side wall of the water collecting tank (3) is provided with an observation window (8) in the height direction, and the observation window (8) is covered with a transparent plate (9).

5. A flue condensate removal device as claimed in claim 4, characterized in that the transparent plate (9) is provided with graduation marks in its height direction for indicating the height of the water level.

6. The flue condensed water discharge device according to claim 1, wherein a floating ball liquid level switch (10) is arranged in the water collection tank (3), the bottom of the water collection tank (3) is communicated with a second drain pipe (11), an electromagnetic valve (12) is arranged between the second drain pipe (11) and the water collection tank (3), the electromagnetic valve (12) is controlled by the floating ball liquid level switch (10), the electromagnetic valve (12) is controlled to be opened when the floating ball liquid level switch (10) reaches an upper liquid level limit value, and the electromagnetic valve (12) is controlled to be closed when the floating ball liquid level switch (10) reaches a lower liquid level limit value.