CN216837290U - Condensed water treatment device for condensing boiler - Google Patents

Abstract

The condensation boiler condensate water treatment device comprises a condensation boiler and a neutralizer, wherein the condensation boiler is provided with a condensate water outlet, the condensate water outlet is provided with a main valve, the main valve is respectively connected with water inlets of a first neutralizer and a second neutralizer through a first water discharge valve and a second water discharge valve, a water outlet of the first neutralizer is connected with a first water discharge valve and a backflushing branch through a first water outlet tee, a water outlet of the second neutralizer is connected with a second water discharge valve and a backflushing branch through a second water outlet tee, and outlets of the first water discharge valve and the second water discharge valve are both connected with a wastewater branch; the backflushing branch comprises a first branch and a second branch. The utility model provides a condensate water treatment device of a condensing boiler, which can continuously perform neutralization operation, ensure qualified discharge of waste water, and has a backflushing device for preventing filter screen blockage, thereby ensuring the working efficiency of a neutralizer.

Description

Condensate water treatment device of condensing boiler

Technical Field

The utility model relates to a condensation boiler comdenstion water processing apparatus belongs to boiler technical field.

Background

The condensing boiler achieves higher energy efficiency than a standard boiler by condensing the water vapor in the flue gas and utilizing the potential energy recovered by the process to increase the heat energy utilization, which also results in the condensing boiler discharging corrosive condensate and condensed water during operation, which according to general experience produces 3.5 liters of condensed water per 30kw input if the boiler is operated in full condensing mode. A 30kW input boiler operating 1200 hours per year will produce approximately 4200 litres of condensed water. These condensed waters from natural gas plants have a pH between 2.0 and 4, and the actual pH will vary depending on the actual chemical composition of the fuel being combusted. Since the long-term inflow of such corrosive condensate into sewer and sewer pipes causes corrosion of the pipes and contamination of the environment, the condensate from the condensing boiler needs to be treated to avoid damage to the piping, sewage and other objects that may come into contact. In order to improve the pH value to an acceptable level, a condensate water neutralizer is required to be installed in a condensing boiler, but the condensate water neutralizing device for the condensing boiler in the prior art still has some defects in actual use, such as the neutralizing agent in the neutralizer needs to be replaced after reaction saturation, the condensate water cannot be treated during replacement, and the excessive discharge is caused, and the filter material is covered by the condenser for preventing impurities, so that the neutralizing efficiency is reduced, generally, a screen is arranged at an inlet, in the process of filtering the condensate water, a large amount of filtered impurities can cover the top of the screen, further, the passing efficiency of the condensate water is influenced, during actual use, the filtration of the condensate water cannot be completed quickly, and the blocky alkaline neutralizing agent is easy to pulverize, so that the neutralizing agent is lost, and certain environmental pollution is caused.

Disclosure of Invention

The utility model aims to provide a: the condensate water treatment device of the condensing boiler can continuously perform neutralization operation, ensures qualified discharge of waste water, is provided with a backflushing device for preventing a filter screen from being blocked, and ensures the working efficiency of a neutralizer.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the condensation boiler condensate water treatment device comprises a condensation boiler and a neutralizer, wherein the condensation boiler is provided with a condensate water outlet, the condensate water outlet is provided with a main valve, the main valve is respectively connected with water inlets of a first neutralizer and a second neutralizer through a first water drain valve and a second water drain valve, the first neutralizer and the second neutralizer are respectively provided with a water inlet, a water outlet and a backflushing port, the water outlet of the first neutralizer is connected with the first water drain valve and the backflushing branch through a first water outlet tee joint, the water outlet of the second neutralizer is connected with the second water drain valve and the backflushing branch through a second water outlet tee joint, and outlets of the first water drain valve and the second water drain valve are both connected with a wastewater branch; the backflushing branch comprises a first branch and a second branch, a first backflushing pump and a first backflushing valve which are connected with each other are sequentially arranged on the first branch, a second backflushing pump and a second backflushing valve which are connected with each other are sequentially arranged on the second branch, the first branch and the second branch are arranged in parallel, two ends of the first branch and two ends of the second branch are connected to form a backflushing branch, and two ends of the backflushing branch are respectively connected with a first water outlet tee and a second water outlet tee; the back flushing port of the first neutralizer is connected with the wastewater branch through a first wastewater valve, and the back flushing port of the second neutralizer is connected with the wastewater branch through a second wastewater valve; further, the neutralizer comprises a tank body, a water inlet, a water outlet and a back flushing port are arranged on the tank body, an upper filter screen, a lower filter screen and a neutralizer are arranged in the tank body, the neutralizer is arranged in the tank body between the upper filter screen and the lower filter screen, the water inlet is arranged at the top of the tank body, the back flushing port is arranged on the tank body above the upper filter screen, the water outlet is arranged on the tank body below the lower filter screen, and a maintenance door is arranged on the tank body above the lower filter screen; further, the neutralizing agent is a spherical alkaline neutralizing agent.

The utility model discloses an actively beneficial technological effect lies in: the utility model discloses a parallelly connected two neutralizer structures can prevent unqualified waste water discharge in the neutralization operation in succession to set up two recoil devices, can prevent that the filter screen from blockking up the waste water pipeline with the impurity recoil on two neutralizer filter screens, the spherical sintered alkaline neutralizer can prevent that the neutralizer from running off.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a neutralizer according to an embodiment of the present invention.

Detailed Description

In order to explain the utility model more fully, the following embodiment examples of the present invention are provided, which are only for the explanation of the present invention and do not limit the scope of the present invention.

The invention is explained in further detail with reference to the drawings, in which: 1. a condensing boiler; 2. a first neutralizer; 3. a second neutralizer; 4. a condensed water outlet; 5. a main valve; 6. a first water inlet valve; 7. a second water inlet valve; 8. a water inlet; 9. a first waste valve; 10. a second waste water valve; 11. a water outlet; 12. back flushing the opening; 13. a first branch; 14. a second branch circuit; 15. a second recoil valve; 16. a second recoil pump; 17. a first water drain valve; 18. a second water drain valve; 19. a first back flushing pump; 20. a first recoil valve; 21. a waste water branch; 22. a tank body; 23. a filter screen is arranged; 24. a lower filter screen; 25. sintering an alkaline neutralizing agent; 26. the door is maintained.

As shown in the figure: a condensate water treatment device of a condensing boiler comprises the condensing boiler 1 and a neutralizer, wherein the condensing boiler is provided with a condensate water outlet 4, the condensate water outlet is provided with a main valve 5, the main valve is respectively connected with water inlets of a first neutralizer 2 and a second neutralizer 3 through a first water inlet valve 6 and a second water inlet valve 7, the first neutralizer and the second neutralizer are respectively provided with a water inlet 8, a water outlet 11 and a backflushing port 12, the water outlets of the first neutralizer and the second neutralizer are respectively connected with a tee joint, as shown in the figure, the water outlet of the first neutralizer is connected with one interface of a first water outlet tee joint on the left side, the other interface of the first water outlet tee joint is connected with a first water drain valve 17, and the third interface of the first water outlet tee joint is connected with the inlet of a first backflushing pump on a backflushing branch road and the outlet of a second backflushing pump 16; the water outlet of the second neutralizer is connected with one interface of a second water outlet tee joint on the right side, the other interface of the second water outlet tee joint is connected with a second water drain valve 18, the third interface of the second water outlet tee joint is connected with the outlet of a first backflushing valve on the backflushing branch and the inlet of a second backflushing valve 16, and the first water outlet tee joint and the second water outlet tee joint are not marked in the figure.

The backflushing branch comprises a first branch 13 and a second branch 14, a first backflushing pump 19 and a first backflushing valve 20 are arranged on the first branch, the water inlet end of the first backflushing pump is connected with the water outlet of the first neutralizer through a first water outlet tee, and the water outlet end of the first backflushing pump is connected with the water outlet of the second neutralizer through the first backflushing valve and a second water outlet tee in sequence; a second back-flushing pump 16 and a second back-flushing valve 15 are arranged on the second branch, the water outlet end of the second back-flushing pump is connected with the water outlet of the first neutralizer through a first water outlet tee joint, and the water inlet end of the second back-flushing pump 16 is connected with the water outlet of the second neutralizer through the second back-flushing valve 15 and the second water outlet tee joint in sequence; the back flushing port of the first neutralizer is connected with the waste water branch through a first waste water valve 9, the back flushing port of the second neutralizer is connected with the waste water branch through a second waste water valve 10, and the outlets of the first water drain valve and the second water drain valve are also connected with a waste water branch 21.

As shown in fig. 2, the utility model discloses in, the neutralizer includes jar body 1, is provided with water inlet, delivery port and recoil mouth on the jar body, and jar internal filter screen 23, lower filter screen 24 of being provided with go up the filter screen, go up the internal spherical sintering alkaline neutralizing agent that is provided with of jar between filter screen and the lower filter screen, spherical sintering alkaline neutralizing agent is made by shell powder and adhesive sintering balling-up, is difficult for the pulverization to have good slow-release effect. As shown in the figure, the water inlet is arranged at the top of the tank body, the backflushing opening is arranged on the tank body above the upper filter screen, the water outlet is arranged on the tank body below the lower filter screen, and the tank body above the lower filter screen is provided with the maintenance door 26.

When the utility model is in normal operation, all other valves and pumps are closed, only the main valve 5, the first water inlet valve 6 and the first water drain valve 17 are opened, condensed wastewater is discharged into a wastewater branch after being treated by the first neutralizer, when the neutralizer in the first neutralizer needs to be replaced, the first water inlet valve and the first water drain valve are closed, the main valve 5, the second water inlet valve 7, the second backflushing valve 15, the second backflushing pump and the first wastewater valve 9 are opened, all other valves are closed for backflushing operation, wastewater treated by the second neutralizer enters the first neutralizer from the water outlet of the first neutralizer through the second branch and is discharged into the wastewater branch from a backflushing port, impurities above the filter screen are brought into the wastewater branch during the backflushing operation, the purpose of cleaning the filter screen is achieved, the second backflushing valve 15, the second backflushing pump and the first wastewater valve 9 are closed after the backflushing operation is finished, the second water drain valve 18 is opened for normal treatment operation, at the moment, the first neutralizer is disconnected from the treatment pipeline, the neutralizer can be replaced, and when the second neutralizer needs to be replaced, the first backflushing branch is started to operate in the same way.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims (3)

1. Condensation boiler comdenstion water processing apparatus, its characterized in that: the condensation boiler is provided with a condensate outlet, the condensate outlet is provided with a main valve, the main valve is respectively connected with water inlets of a first neutralizer and a second neutralizer through a first water drain valve and a second water drain valve, the first neutralizer and the second neutralizer are respectively provided with a water inlet, a water outlet and a backflushing port, the water outlet of the first neutralizer is connected with a first water drain valve and a backflushing branch through a first water outlet tee, the water outlet of the second neutralizer is connected with a second water drain valve and a backflushing branch through a second water outlet tee, and outlets of the first water drain valve and the second water drain valve are connected with a wastewater branch; the backflushing branch comprises a first branch and a second branch, a first backflushing pump and a first backflushing valve which are connected with each other are sequentially arranged on the first branch, a second backflushing pump and a second backflushing valve which are connected with each other are sequentially arranged on the second branch, the first branch and the second branch are arranged in parallel, two ends of the first branch and two ends of the second branch are connected to form a backflushing branch, and two ends of the backflushing branch are respectively connected with a first water outlet tee and a second water outlet tee; the backflushing port of the first neutralizer is connected with the waste water branch through a first waste water valve, and the backflushing port of the second neutralizer is connected with the waste water branch through a second waste water valve.

2. A condensate water treatment apparatus for a condensing boiler according to claim 1, wherein: the neutralizer comprises a tank body, wherein a water inlet, a water outlet and a back flushing port are arranged on the tank body, an upper filter screen, a lower filter screen and a neutralizer are arranged in the tank body, the neutralizer is arranged in the tank body between the upper filter screen and the lower filter screen, the water inlet is arranged at the top of the tank body, the back flushing port is arranged on the tank body above the upper filter screen, the water outlet is arranged on the tank body below the lower filter screen, and a maintenance door is arranged on the tank body above the lower filter screen.

3. A condensate water treatment apparatus for a condensing boiler according to claim 2, wherein: the neutralizing agent is a spherical alkaline neutralizing agent.

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