CN212480500U - Wastewater discharge system and power plant wastewater treatment system - Google Patents

Abstract

The utility model discloses a wastewater discharge system and power plant wastewater treatment system, this wastewater discharge system are applicable to and carry the emission to the waste water in the waste water source of power plant. The waste water treatment system comprises branch blind ditches, a main road blind ditch, a main road drain pipe and a waste water collecting pool, wherein the main road drain pipe is arranged in the main road blind ditch, the branch blind ditches are multiple, one end of each branch blind ditch is communicated with the waste water source of the power plant, the other end of each branch blind ditch is communicated with a first end of the main road drain pipe, and a second end of each main road drain pipe is communicated with the waste water collecting pool; the waste water discharge system further comprises a heat preservation assembly, and the heat preservation assembly is arranged on the main path drain pipe. The problem that the waste water leaks because the existing main road underdrain is easy to damage can be solved by the scheme.

Description

Wastewater discharge system and power plant wastewater treatment system

Technical Field

The utility model relates to a waste water treatment technical field especially relates to a wastewater discharge system and power plant wastewater treatment system.

Background

At present, in thermal power generation technical field, the wastewater disposal basin is not allowed to be arranged in the main factory building, and acid-base wastewater is inevitably produced when a unit condensate fine treatment regeneration system in the main factory building operates, so that a drainage blind ditch is usually arranged underground in the main factory building to discharge the acid-base wastewater to the wastewater disposal basin outside the main factory building.

In general, acid and alkali wastewater discharged from rooms such as a regeneration room and a metering room is collected into a main blind ditch through a branch blind ditch, and then is discharged into a wastewater pond outside a main plant through the main blind ditch, so that most of the main blind ditches are uniformly distributed in an outdoor environment. In cold areas with large temperature difference day and night, acid-base wastewater in the main path blind ditch can be repeatedly frozen and thawed, a surface anticorrosive layer of the blind ditch can be damaged, and then the problem of wastewater leakage in the blind ditch structure can be caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a wastewater discharge system and power plant wastewater treatment system to solve present main road blind ditch and easily receive destruction and have the problem that waste water leaked.

In order to solve the above problem, the utility model adopts the following technical scheme:

on the one hand, the utility model provides a wastewater discharge system is applicable to carrying the emission to the waste water of power plant's waste water source, and it includes branch road hidden ditches, main road drain pipe and waste water collecting pool, the main road drain pipe set up in the main road hidden ditches, the branch road hidden ditches are many, and one end of the branch road hidden ditches with the power plant's waste water source intercommunication, the other end of the branch road hidden ditches with the first end of the main road drain pipe intercommunication, the second end of the main road drain pipe with the waste water collecting pool intercommunication;

the waste water discharge system further comprises a heat preservation assembly, and the heat preservation assembly is arranged on the main path drain pipe.

On the other hand, the utility model provides a power plant's effluent disposal system, it includes aforementioned effluent discharge system.

The utility model discloses a technical scheme can reach following beneficial effect:

the utility model discloses an among the wastewater discharge system, be provided with the main road drain pipe in the main road blind drain, the waste water in waste water source finally discharges in the waste water collecting pit through the main road drain pipe. Firstly, as the waste water in the main path drainage pipe needs to be indirectly conducted through the pipe body when exchanging heat with the external environment, compared with the situation that the waste water directly exchanges heat in the main path blind ditch, the heat exchange efficiency is undoubtedly lower, so that the speed and the frequency of freezing the waste water can be reduced; secondly, be provided with the thermal insulation component on the main road drain pipe, thermal insulation component can reduce the scattering and disappearing of heat in the waste water, avoids waste water temperature to hang down excessively, and then plays the effect of preventing frostbite.

Compared with the prior art, the utility model discloses a waste water drainage system can ensure undoubtedly that the waste water in the main road drain pipe is in on freezing the temperature line, so waste water can not freeze repeatedly, unfreeze, then can avoid the main road drain pipe to be destroyed, and then has prevented the leakage of waste water.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

FIG. 1 is a sectional view of a first wastewater discharge system according to an embodiment of the present invention;

FIG. 2 is a sectional view of a first wastewater discharge system according to an embodiment of the present invention;

FIG. 3 is a sectional view of a second wastewater discharge system according to an embodiment of the present invention;

FIG. 4 is a sectional view of a second wastewater discharge system according to an embodiment of the present invention;

description of reference numerals:

100-main-way blind drain, 200-main-way drain pipe, 300-waste water collecting tank,

400-regeneration room, 500-metering room,

600-a first branch underdrain, 610-a first vertical connecting section,

700-a second branch blind ditch, 720-a second vertical connecting section,

800-first branch drain.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 4, an embodiment of the present invention discloses a waste water discharge system, which is suitable for transporting and discharging waste water from a waste water source of a power plant. In the present embodiment, the disclosed wastewater discharge system includes a branch underdrain, a main underdrain 100, a main drain pipe 200, and a wastewater collection tank 300.

Wherein, the branch underdrain and the main underdrain 100 form an underdrain official network of the wastewater discharge system, the wastewater source can discharge the wastewater of the wastewater source into the wastewater collection tank 300 through the branch underdrain and the main underdrain 100, and the wastewater can be discharged or reprocessed after being collected in the wastewater collection tank 300.

In this embodiment, the branch blind ditches are multiple, and since the waste water source of the power plant includes a plurality of sources under normal conditions, it is necessary to set a plurality of branch blind ditches to be respectively communicated with the waste water sources of these different sources so as to drain the waste water. Specifically, each branch blind ditch has one end and power plant's waste water source intercommunication.

Meanwhile, the main path drain pipe 200 is disposed in the main path underdrain 100, the other end of the branch path underdrain is communicated with the first end of the main path drain pipe 200, and the second end of the main path drain pipe 200 is communicated with the wastewater collection tank 300. Specifically, the main path drain pipe 200 functions as a waste water collecting tank 300 that collects waste water and discharges the waste water from the indoor to the outdoor instead of the main path underdrain 100, that is, the waste water is not directly drained by the main path underdrain 100, but drained by the main path drain pipe 200 in the main path underdrain 100.

It should be understood that, in a cold area with a large temperature difference between day and night, the main blind ditch 100 is affected by frozen soil, the temperatures of the ditch wall and the main blind ditch 100 are very low, the waste water is frozen when being discharged in the main blind ditch 100 and is thawed when being cooled, so that the waste water is repeatedly frozen and thawed, the surface anticorrosive layer of the main blind ditch 100 is damaged, and even the main body structure of the main blind ditch 100 is damaged, and finally the problem of waste water leakage in the main blind ditch 100 is caused. And in the disclosed wastewater discharge system of this embodiment, at the outdoor section, waste water discharges to wastewater collecting tank 300 through main road drain pipe 200, and waste water does not directly expose under the low temperature environment of main road blind drain 100, and because the blockking of main road drain pipe 200 body, waste water can be lower with external environment's heat exchange efficiency, consequently can reduce the speed and the frequency that waste water was frozen, and then can effectively avoid main road drain pipe 200 to be destroyed.

In this embodiment, the wastewater discharge system further includes a heat-insulating assembly disposed on the main drainage pipe 200. Specifically, the heat preservation assembly can preserve heat or raise the temperature of the main path drain pipe 200, and further, the waste water in the main path drain pipe 200 can be subjected to anti-freezing treatment.

It should be noted that the present embodiment does not limit the specific type of the heat insulation component, for example, the heat insulation component may be the heat insulation layer of the main drainage pipe 200, and the heat insulation layer may be made of inorganic materials such as asbestos and diatomite, or organic materials such as polyurethane rigid foam.

In another specific embodiment, the insulating assembly may be a heat tracing cable. It should be understood that the temperature of the heat tracing cable will gradually increase after being electrified, and when the temperature of the heat tracing cable increases to a certain value, the resistance is so large as to almost block the current, and the temperature of the heat tracing cable does not increase any more; in the above temperature rising process, the heat tracing cable can conduct heat to the main path drain pipe 200, thereby ensuring that the main path drain pipe 200 maintains a preset temperature or raises the temperature, so as to perform anti-freezing treatment on the wastewater in the main path drain pipe 200.

Of course, the embodiment also does not limit what heat tracing medium is used for the heat insulation component, and besides the heat tracing cable, the heat insulation component can also be a steam heat tracing component.

Under the general condition, the temperature can be relatively higher under ground, so in order to avoid the waste water of main road blind ditch 100 to freeze, can set up main road blind ditch 100 at the certain elevation of below ground, but so set up the excavation construction degree of difficulty increase that can make waste water collecting tank 300, and the opening setting position of waste water collecting tank 300 is influenced to main road blind ditch 100's elevation, and then can make waste water collecting tank 300's effective volume show and reduce. However, with the wastewater discharge system disclosed in this embodiment, the main underdrain 100 and the main drain pipe 200 can be set at a higher elevation than in the prior art, and the influence on the effective volume of the wastewater collection tank 300 can be reduced.

As can be seen from the above description, in the wastewater discharge system disclosed in the embodiment of the present invention, the main path drain pipe 200 is provided in the main path underdrain 100, and the wastewater of the wastewater source is finally discharged to the wastewater collection tank 300 through the main path drain pipe 200. Firstly, since the waste water in the main drainage pipe 200 needs to be indirectly conducted through the pipe body when exchanging heat with the external environment, the heat exchange efficiency is undoubtedly lower compared with the case that the waste water directly exchanges heat in the main underdrain 100, so that the speed and frequency of freezing the waste water can be reduced; secondly, be provided with the thermal insulation component on main road drain pipe 200, the thermal insulation component can reduce the scattering and disappearing of heat in the waste water, avoids waste water temperature to hang down excessively, and then plays the effect of preventing frostbite.

Compared with the prior art, the embodiment of the utility model discloses waste water drainage system can ensure undoubtedly that the waste water in main road drain pipe 200 is in on freezing the temperature line, so waste water can not freeze repeatedly, unfreeze, then can avoid main road drain pipe 200 to be destroyed, and then has prevented the leakage of waste water.

Due to the adoption of the mode of directly burying the pipeline, the main drainage pipe 200 may be damaged in the construction process, and when the main drainage pipe 200 leaks, the problems of difficulty in finding and digging and difficulty in overhauling exist, and based on this, in an optional scheme, the main drainage pipe 200 and the wall of the main underdrain 100 can be arranged at intervals.

It should be understood that, with such an arrangement, when the main drainage pipe 200 leaks, the main blind ditch 100 can be directly excavated to be exposed outside, and compared with a direct buried pipeline, the amount of excavated earth and the excavation difficulty are undoubtedly smaller; secondly, after the main path blind drain 100 is exposed, the leakage position of the main path drain pipe 200 can be found out correspondingly by observing where the waste water drops or accumulates in the main path blind drain 100 through visual observation, and then the maintenance efficiency is improved.

In this embodiment, no limitation is made on the power plant wastewater source, which may include a coal conveying system (generating coal-containing wastewater), an oil conveying system (generating oil-containing wastewater), a boiler component (generating slag-off wastewater), and the like.

In one embodiment, the power plant wastewater source may include a regeneration room 400 and a dosing room 500, the regeneration room 400 and the dosing room 500 generating acid-base wastewater; correspondingly, the wastewater discharge system includes a first branch underdrain 600 and a second branch underdrain 700, one end of the first branch underdrain 600 communicates with the regeneration room 400, the other end of the first branch underdrain 600 communicates with the first end of the main path drain 200, one end of the second branch underdrain 700 communicates with the measurement room 500, and the other end of the second branch underdrain 700 communicates with the first end of the main path drain 200.

It should be understood that, with this arrangement, the wastewater in the regeneration room 400 can be discharged to the main drain pipe 200 through the first branch underdrain 600, and the wastewater in the measurement room 500 can be discharged to the main drain pipe 200 through the second branch underdrain 700, and finally discharged to the wastewater collection tank 300 through the main drain pipe 200.

Further, the elevation of the first sub-underdrain 600 with respect to the ground may be higher than the elevation of the main sub-underdrain 100 with respect to the ground, and the elevation of the second sub-underdrain 700 with respect to the ground may be higher than the elevation of the main sub-underdrain 100 with respect to the ground.

It should be noted that, because the indoor temperature of the main building is higher than the outdoor temperature, the anti-freezing requirement for the first branch blind drain 600 and the second branch blind drain 700 is lower than the anti-freezing requirement for the main road blind drain 100, so that the set elevations of the first branch blind drain 600 and the second branch blind drain 700 can be properly increased under the condition that the freezing frequency of the wastewater in the first branch blind drain 600 and the second branch blind drain 700 is lower or the wastewater is not frozen at all, under such a condition, the wastewater outlet of the regeneration room 400 can be conveniently communicated with the first branch blind drain 600, the wastewater outlet of the metering room 500 can be conveniently communicated with the second branch blind drain 700, and the wastewater can be conveniently discharged.

Further, the other end of the first branch underdrain 600 may be provided with a first vertical connecting segment 610, and one end of the first vertical connecting segment 610 departing from the first branch underdrain 600 is communicated with the first end of the main road drainage pipe 200; the other end of the second branch underdrain 700 may be provided with a second vertical connection section 710, and one end of the second vertical connection section 710 departing from the first branch underdrain 600 communicates with the first end of the main road drain pipe 200.

Specifically, the first vertical connecting section 610 can enable the first branch underdrain 600 to be communicated with the main road drainage pipe 200 more quickly, and the second vertical connecting section 710 can enable the second branch underdrain 700 to be communicated with the main road drainage pipe 200 more quickly, so that the underdrain is shorter in length compared with an underdrain which is undoubtedly arranged in a conventional inclined pipeline arrangement mode, and the effect of optimizing the layout of the underdrain is achieved; meanwhile, the wastewater can be gathered in the first vertical connecting section 610 and the second vertical connecting section 710, the pressure in the main path drain pipe 200 is relatively lower, and the wastewater can be forced to enter the main path drain pipe 200, so that the wastewater discharge fluency of the system can be improved by the embodiment.

In the present embodiment, the specific connection relationship between the main branch underdrain 200 and the main branch underdrain 600 and the main branch underdrain 700 is not limited, for example, the first end of the main branch underdrain 200 may be respectively provided with a first junction stub and a second junction stub, the first junction stub extends from the main branch underdrain 100 into the first branch underdrain 600 through the soil layer, and the second junction stub extends from the main branch underdrain 100 into the second branch underdrain 700 through the soil layer (as shown in fig. 2).

In another specific embodiment, the first vertical connection section 610 may be located in an extending direction of the main underdrain 100, and the first end of the main drainage pipe 200 passes through an end of the main underdrain 100 and protrudes into the first vertical connection section 610. It should be understood that, with this arrangement, the main drainage pipe 200 can be directly extended into the first branch underdrain 600, and there is no need to provide a switching pipe, thereby simplifying the overall structure of the wastewater drainage system and reducing the cost.

Because the acid-base concentration of the wastewater in the measurement room 500 is higher, the problem of corrosion damage caused by the influence of temperature on the second branch blind drain 700 is more serious, and therefore, in an alternative scheme, as shown in fig. 3 and 4, the wastewater discharge system may further include a first branch drain pipe 800, the first branch drain pipe 800 is disposed in the second branch blind drain 700, one end of the first branch drain pipe 800 is communicated with the measurement room 500, the other end of the first branch drain pipe 800 is communicated with the first end of the main branch drain pipe 200, and the wastewater in the measurement room 500 is discharged into the main branch drain pipe 200 through the first branch drain pipe 800.

Particularly, 500 exhaust waste water passes through first branch road drain pipe 800 between the measurement, and waste water does not directly expose under the low temperature environment of second branch road underdrain 700, and because the blockking of first branch road drain pipe 800 body, waste water can be lower with external environment's heat exchange efficiency, consequently can reduce the speed and the frequency that waste water was frozen, and then can effectively avoid first branch road drain pipe 800 to be destroyed, under this condition, the corruption destruction problem of 500 exhaust waste water between the measurement can effectively be alleviated.

Of course, the waste water discharging system may further include a second branch drain pipe provided in the first branch underdrain 600, one end of the second branch drain pipe being communicated with the regeneration room 400, the other end of the second branch drain pipe being communicated with the first end of the main path drain pipe 200, and the waste water of the regeneration room 400 being discharged into the main path drain pipe 200 by the second branch drain pipe. Similarly, the second branch drain pipe can effectively alleviate the problem of corrosion damage to the wastewater discharged from the regeneration room 400.

Further, the first branch drain pipe 800 and the second branch drain pipe may be both provided with a matched heat insulation structure.

In order to enable the wastewater in the main drainage pipe 200 to be smoothly discharged into the wastewater collection tank 300, in an alternative scheme, the main drainage pipe 200 may be inclined from a first end to a second end, wherein the first end is an end of the main drainage pipe 200 away from the wastewater collection tank 300, and the second end is an end of the main drainage pipe 200 communicated with the wastewater collection tank 300. With such an arrangement, the wastewater in the main drainage pipe 200 can automatically flow from the first end to the second end thereof under the influence of gravity, without a pumping mechanism, thereby simplifying the overall structure of the wastewater drainage system.

Based on aforementioned effluent disposal system, the embodiment of the utility model discloses still disclose a power plant's effluent disposal system, it includes aforementioned effluent disposal system. Under the general condition, the power plant wastewater treatment system also comprises a unit condensed water fine treatment regeneration system, and by operating the unit condensed water fine treatment regeneration system, the generation of corrosive substances and sediments in the power plant wastewater treatment system can be reduced, and the quality of feed water can be improved.

The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. A waste water discharge system is suitable for conveying and discharging waste water of a waste water source of a power plant, and is characterized by comprising a branch blind ditch, a main path blind ditch (100), a main path drain pipe (200) and a waste water collecting pool (300), wherein the main path drain pipe (200) is arranged in the main path blind ditch (100), the branch blind ditches are multiple, one end of each branch blind ditch is communicated with the waste water source of the power plant, the other end of each branch blind ditch is communicated with a first end of the main path drain pipe (200), and a second end of the main path drain pipe (200) is communicated with the waste water collecting pool (300);

the wastewater discharge system further comprises a heat preservation assembly, and the heat preservation assembly is arranged on the main path drain pipe (200).

2. The waste water drainage system of claim 1, wherein the thermal insulation assembly is a heat tracing cable.

3. The wastewater discharge system according to claim 1, wherein the main road drainage pipe (200) is provided spaced apart from a wall of the main road underdrain (100).

4. The wastewater discharge system according to claim 1, wherein the power plant wastewater source comprises a regeneration room (400) and a metering room (500), the wastewater discharge system comprises a first branch underdrain (600) and a second branch underdrain (700), one end of the first branch underdrain (600) is communicated with the regeneration room (400), the other end of the first branch underdrain (600) is communicated with a first end of the main path drain (200), one end of the second branch underdrain (700) is communicated with the metering room (500), and the other end of the second branch underdrain (700) is communicated with a first end of the main path drain (200).

5. The wastewater discharge system according to claim 4, wherein the elevation of the first branch underdrain (600) relative to the ground is higher than the elevation of the main underdrain (100) relative to the ground, and the elevation of the second branch underdrain (700) relative to the ground is higher than the elevation of the main underdrain (100) relative to the ground.

6. The wastewater discharge system according to claim 5, wherein the other end of the first branch underdrain (600) is provided with a first vertical connecting section (610), and one end of the first vertical connecting section (610) facing away from the first branch underdrain (600) is communicated with a first end of the main branch drain pipe (200); the other end of the second branch blind ditch (700) is provided with a second vertical connecting section (710), and one end of the second vertical connecting section (710) departing from the first branch blind ditch (600) is communicated with the first end of the main branch drainage pipe (200).

7. The wastewater discharge system according to claim 6, wherein the first vertical connection section (610) is located in an extension direction of the main underdrain (100), and a first end of the main water discharge pipe (200) passes through an end of the main underdrain (100) and protrudes into the first vertical connection section (610).

8. The wastewater discharge system according to claim 4, further comprising a first branch drain pipe (800), the first branch drain pipe (800) being provided in the second branch underdrain (700), one end of the first branch drain pipe (800) communicating with the measuring room (500), the other end of the first branch drain pipe (800) communicating with a first end of the main path drain pipe (200), the wastewater of the measuring room (500) being discharged into the main path drain pipe (200) by the first branch drain pipe (800).

9. The wastewater discharge system according to claim 1, wherein the main path drain pipe (200) is disposed to be inclined from a first end thereof, which is an end of the main path drain pipe (200) facing away from the wastewater collection tank (300), to a second end thereof, which is an end of the main path drain pipe (200) communicating with the wastewater collection tank (300).

10. A power plant wastewater treatment system comprising the wastewater discharge system of any one of claims 1 to 9.

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