Chemical plant domestic sewage treatment system

Abstract

According to the domestic sewage treatment system for the chemical plant, the water collecting pit is arranged below the sewage pump, sewage leaked from the sewage pump or a pipeline is collected through the water collecting pit, the drainage pump and the liquid level detection assembly are arranged, and the water level in the water collecting pit is detected through the liquid level detection assembly; when the water level of accumulated water in the sump reaches a certain height, the drainage pump is started to convey the accumulated water in the sump into the sewage pool, so that the problem that the water level of the accumulated water in the sump is too high to cause short-circuit damage to the sewage pump is solved. The chemical plant domestic sewage treatment system provided by the utility model solves the problems that in the prior art, workers are difficult to quickly check accumulated water at a water pump in real time and timely drain water, so that the accumulated water at the water pump is continuously accumulated, and even the accumulated water rises to cause short circuit damage of the water pump; inconvenience is brought to domestic water consumption of chemical plant personnel, and economic loss is brought.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical plant domestic sewage treatment, specifically relates to a chemical plant domestic sewage treatment system. BACKGROUND

[0002] Chemical plant is an indispensable link in modern industry, as a kind of labor-intensive production scene, a large amount of production sewage and domestic sewage will be produced in chemical plant every day;Domestic sewage is generally stored and preliminarily treated by the domestic sewage treatment system in chemical plant, and then is sent into municipal sewage treatment pipeline by water pump for discharge treatment.Chemical plant domestic sewage treatment system is the transmission hub of the whole chemical plant domestic sewage, and is an important component of chemical plant, which needs to treat and discharge continuously generated domestic sewage, so as to ensure the normal domestic water of all personnel in the whole chemical plant.

[0003] The existing chemical plant domestic sewage treatment system is generally set underground, and the domestic sewage of the whole plant is stored and preliminarily treated by the water collecting pool, and then the domestic sewage in the water collecting pool is output to municipal sewage treatment pipeline by water pump for discharge.

[0004] However, during long-time operation, the water pump and pipeline of chemical plant domestic sewage treatment system often leak, which causes water accumulation at the water pump, and since the chemical plant domestic sewage treatment system is set underground, the staff can not quickly check the water accumulation at the water pump in real time and drain water in time, which causes continuous accumulation of water at the water pump, and even causes water pump short circuit damage due to water rising, which brings inconvenience to domestic water of chemical plant personnel and unnecessary economic loss. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problems that the water pump and pipeline of chemical plant domestic sewage treatment system often leak in the background art, the water level at the water pump continuously rises to cause water pump short circuit, which causes inconvenience of domestic water of chemical plant personnel and economic loss, the utility model provides a chemical plant domestic sewage treatment system.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A chemical plant domestic sewage treatment system is set underground, and the chemical plant domestic sewage treatment system comprises a sewage pool, a sewage pump, a drainage pump, a water collecting pit and a liquid level detection assembly;The sewage pool contains domestic sewage;The sewage pump is communicated with the sewage pool, and the sewage pump is communicated with external sewage treatment pipeline;The water collecting pit is arranged below the sewage pump;The liquid level detection assembly is partially arranged in the water collecting pit;The drainage pump is communicated with the water collecting pit and the sewage pool, and the drainage pump is electrically connected with the liquid level detection assembly.

[0008] Optionally, the liquid level detection assembly comprises a first liquid level meter and a first contactor; the first liquid level meter is arranged in the sump; and the first contactor is electrically connected with the first liquid level meter and the sewage pump.

[0009] Optionally, the chemical plant domestic sewage treatment system further comprises an alarm, which is arranged on the ground and is electrically connected with the first contactor.

[0010] Optionally, the chemical plant domestic sewage treatment system further comprises a second liquid level meter and a second contactor; the second liquid level meter is arranged in the sewage pool; and the second contactor is electrically connected with the second liquid level meter and the alarm.

[0011] Optionally, a grating plate is arranged on the sump, and the sewage pump is arranged above the grating plate.

[0012] Optionally, the sewage pool is a glass fiber reinforced plastic sump.

[0013] Optionally, an access hole and a sediment inspection hole are arranged on the sewage pool, and the access hole and the sediment inspection hole extend out of the ground.

[0014] Optionally, a filter is arranged between the sewage pool and the sewage pump.

[0015] Optionally, the chemical plant domestic sewage treatment system further comprises a sewage inspection well, which is arranged in front of the inlet of the sewage pool.

[0016] Optionally, a check valve is arranged between the sewage pool and the sewage pump, and a check valve is also arranged between the sewage pump and the sewage pool.

[0017] The beneficial effects of the present application are as follows:

[0018] (1) The utility model provides a kind of chemical plant domestic sewage treatment system, by sewage pool to the domestic sewage collected is contained temporary storage and preliminary processing, by sewage pump, domestic sewage is exported to the outside sewage treatment pipeline and is discharged;Water sump is set in the lower portion of sewage pump, the sewage leaked by sewage pump or pipeline is collected by water sump, and drainage pump and liquid level detection component are set, the water level in water sump is detected by liquid level detection component, when the accumulated water level in water sump reaches certain height, start drainage pump, and the accumulated water in water sump is transported to sewage pool, to avoid the accumulated water level in water sump too high, short-circuit damage problem caused to sewage pump.The chemical plant domestic sewage treatment system provided by the utility model solves the technical problem that personnel in prior art cannot quickly check accumulated water at water pump in real time and drain in time, leading to continuous accumulation of accumulated water at water pump, even causing accumulated water to rise and short-circuit damage to water pump, causing inconvenience to personnel in chemical plant for domestic water, while causing economic loss.

[0019] (2)Meanwhile, the chemical plant domestic sewage treatment system in the utility model also includes alarm electrically connected with contactor, the alarm is arranged on ground, when first liquid level meter detects that the accumulated water level in water sump is too high, contactor triggers alarm, so that alarm issues alarm, to facilitate personnel to obtain water level information in water sump in time, to take corresponding operation, to prevent loss. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the schematic diagram of the chemical plant domestic sewage treatment system in the utility model.

[0021] Wherein: 1, sewage pool;11, access hole;12, sediment inspection port;13, sewage inspection well;2, sewage pump;21, filter;3, drainage pump;4, water sump;41, grating;5, liquid level detection component;51, first liquid level meter;52, first contactor;6, alarm;7, second liquid level meter;8, second contactor;9, check valve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. The description of at least one exemplary embodiment is actually only illustrative, not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] It is to be understood that the terms so far as the language goes used in this specification are only to describe the specific implementation and are not intended to limit the exemplary embodiments according to the present application. As used in this specification, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0024] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless otherwise specifically stated. Meanwhile, it should be clear that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The techniques, methods and devices known to those skilled in the related art can not be discussed in detail, but should be considered as part of the specification under appropriate circumstances. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so further discussion is not needed in subsequent drawings once an item is defined in one drawing.

[0025] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0026] For purposes of the description hereinafter, spatially relative terms, such as "above", "below", "up", "down", "top", "bottom", "lateral", "longitudinal" (or lengthening), "vertical", "horizontal", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described herein is inverted or rotated by 90 degrees, then the descriptions of above, below, up, down, top, bottom, lateral, longitudinal, vertical, horizontal, and the like can be modified accordingly. The term "above", for example, can encompass both a position above and a position below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", "third", etc. can be used herein to describe various components, and the components should not be limited to the above terms. These terms are only used to distinguish one component from another. Thus, the above terms are not intended to have any special meaning or special function unless otherwise specified.

[0027] In addition, it should be noted that the use of "first", "second", and the like words to qualify parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the protection scope of the utility model.

[0028] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] The chemical plant domestic sewage treatment system is the transportation hub of the entire chemical plant domestic sewage, and is an important part of the chemical plant. The continuously generated domestic sewage needs to be treated and discharged, so as to ensure the normal domestic water of all personnel in the entire chemical plant.

[0030] In order to reduce the occupation of ground resources, reduce noise and pollution of sewage odor, the existing chemical plant domestic sewage treatment system is generally set underground. The domestic sewage of the entire plant is temporarily stored and preliminarily treated in the sewage tank, and then the domestic sewage in the tank is output to the external sewage treatment pipeline through the sewage pump for discharge.

[0031] However, during a long period of operation, the sewage pump and pipeline of the chemical plant domestic sewage treatment system often leak, resulting in water accumulation at the sewage pump. In the prior art, the amount of water accumulation is checked and treated by the staff on a regular basis. However, since the chemical plant domestic sewage treatment system is set underground, the staff cannot quickly check the water accumulation at the pump in real time and drain the water in time. In particular, when extreme problems such as pipeline aging and rupture occur, the water level at the sewage pump will rise rapidly, and then overflow the sewage pump, causing the problem of short circuit damage of the sewage pump.

[0032] Referring toFigure 1 , shows a schematic view of a chemical plant domestic sewage treatment system described in the application, which comprises: a sewage pool 1, a sewage pump 2, a drainage pump 3, a sump 4 and a liquid level detection assembly 5; the sewage pool 1 contains domestic sewage; the sewage pump 2 is communicated with the sewage pool 1, and the sewage pump 2 is communicated with an external sewage treatment pipeline; the sump 4 is arranged below the sewage pump 2; the liquid level detection assembly 5 is partially arranged in the sump 4; the drainage pump 3 is communicated with the sump 4 and the sewage pool 1, and the drainage pump 3 is electrically connected with the liquid level detection assembly 5.

[0033] In the embodiment, the collected domestic sewage is contained and temporarily stored in the sewage pool 1 and is preliminarily treated, and the domestic sewage is output to the external sewage treatment pipeline by the sewage pump 2 for discharge; the sump 4 is arranged below the sewage pump 2, the sewage leaked from the sewage pump 2 or the pipeline is collected by the sump 4, and the drainage pump 3 and the liquid level detection assembly 5 are arranged, the water level in the sump 4 is detected by the liquid level detection assembly 5, when the water level in the sump 4 reaches a certain height, the drainage pump 3 is started to transport the water in the sump 4 to the sewage pool 2, so that the problem of short circuit damage of the sewage pump 3 caused by the water level in the sump 4 being too high is avoided. The chemical plant domestic sewage treatment system provided by the utility model solves the technical problem that in the prior art, the staff cannot quickly and real-timely check the water in the sewage pump 2 and discharge the water in time, which leads to continuous rising of the water, short circuit damage of the sewage pump 2, inconvenience to the personnel in the chemical plant in using water and economic loss.

[0034] Optionally, the liquid level detection assembly 5 in the utility model comprises a first liquid level meter 51 and a first contactor 52; the first liquid level meter 51 is arranged in the sump 4; the first contactor 52 is electrically connected with the first liquid level meter 51 and the drainage pump 3.

[0035] In the embodiment, the liquid level detection assembly 5 comprises a first liquid level meter 51 and a first contactor 52; the water level in the sump 4 is detected by the first liquid level meter 51, and according to the detection result, when the water level reaches a certain preset value, the first contactor 52 is used to make the drainage pump 3 work to discharge the water in the sump 4 to the sewage pool 1, so that the water level in the sump 4 is prevented from continuing to rise and causing the sewage pump 2 to be submerged and short circuit damaged.

[0036] For example, the first contactor 52 in the utility model can be specifically selected as a CJ20 or CJ40 type contactor, and it should be noted that a person skilled in the art can select the model of the first contactor 52 according to actual production and use requirements, and only one optional scheme is provided in the embodiment.

[0037] Optionally, the chemical plant domestic sewage treatment system in the utility model further includes an alarm 6, the alarm 6 is arranged on the ground, and the alarm 6 is electrically connected with the first contactor 52.

[0038] In the embodiment, the chemical plant domestic sewage treatment system further includes the alarm 6 electrically connected with the first contactor 52, the alarm 6 is arranged on the ground, when the first liquid level meter 51 detects that the water level in the sump 4 is too high, the alarm 6 is triggered through the contactor 52, the alarm 6 sends an alarm, and staff can obtain the water level information in the sump 4 in time, so that corresponding operation is taken, and loss is prevented.

[0039] Further, the alarm 6 in the embodiment can also transmit alarm information to the production control room of the chemical plant, so that the water level in the sump 4 is treated in time.

[0040] Optionally, the chemical plant domestic sewage treatment system in the utility model further includes a second liquid level meter 7 and a second contactor 8, the second liquid level meter 7 is arranged in the sewage tank 1, and the second contactor 8 is electrically connected with the second liquid level meter 7 and the alarm 6.

[0041] In the embodiment, the chemical plant domestic sewage treatment system further includes the second liquid level meter 7 and the second contactor 8, the second liquid level meter 7 is arranged in the sewage tank 1, and the second contactor 8 is electrically connected with the second liquid level meter 7 and the alarm 6, in the use process, the second liquid level meter 7 detects the sewage level in the sewage tank 1, and according to the detection result, the alarm 6 sends an alarm through the second contactor 8, so that staff can obtain the sewage level in the sewage tank 1 and take corresponding operation in time, the sewage level in the sewage tank 1 is prevented from being too high to overflow, and pollution and other losses are prevented.

[0042] Optionally, a grating plate 41 is arranged on the sump 4, and the sewage pump 2 is arranged above the grating plate.

[0043] In the embodiment, the grating plate 41 is arranged on the sump 4, so that sewage leaked by the sewage pump 2 or a pipeline can directly flow into the sump 4; meanwhile, the grating plate 41 can be detachably connected, so that the sump 4 is convenient to disassemble and operate during cleaning and maintenance.

[0044] Optionally, the sewage tank 1 is a glass steel sewage tank.

[0045] In the embodiment, the sewage tank 1 is a glass steel sewage tank, has corrosion resistance, light weight, high strength, convenient construction and environmental protection safety and other excellent performances, so that the glass steel sewage tank can meet specific requirements such as long-term stability, anti-leakage performance and easy maintenance of the sewage tank 1.

[0046] Optionally, the sewage pool 1 is provided with an inspection opening 11 and a sediment inspection opening 12, and the inspection opening 11 and the sediment inspection opening 12 extend out of the ground.

[0047] In the embodiment, the sewage pool 1 is provided with the inspection opening 11, when the pipeline of the sewage pool 1 is blocked or the equipment fails, the staff can enter the sewage pool 1 to check, repair or dredge through the inspection opening 11, and the sediment inspection opening 12 is mainly used for observing the sediment in the sewage pool 1, in the sewage treatment process, the suspended solids, particulate matters and the like in the sewage are gradually deposited in the sedimentation tank, through the sediment inspection opening 12, the staff can observe the sediment in the sewage pool 1 regularly, and judge whether further cleaning or maintenance measures need to be taken.

[0048] Optionally, the sewage pool 1 and the sewage pump 2 are provided with a filter 21.

[0049] In the embodiment, the filter 21 is arranged between the sewage pool 1 and the sewage pump 2, and the sewage discharged through the sewage pump 2 is filtered, so that the suspended solids, particulate matters and the like in the sewage can prevent the sewage pump 2 from being blocked.

[0050] Further, the filter 21 is detachably connected between the sewage pool 1 and the sewage pump 2, so that the staff can regularly dismount, clean or replace the filter 21.

[0051] Optionally, the sewage inspection well 13 is arranged in front of the inlet of the sewage pool 1.

[0052] In the embodiment, the sewage inspection well 13 is arranged in front of the inlet of the sewage pool 1, so that the staff can monitor, clean and the like of the sewage pipeline, and the normal operation and maintenance environment of the sewage system are guaranteed.

[0053] Optionally, the sewage pool 1 and the sewage pump 2 are provided with a check valve 9, and the sewage pool 1 and the drainage pump 3 are also provided with the check valve 9.

[0054] In the embodiment, the check valve 9 is arranged between the sewage pool 1 and the sewage pump 2, and between the sewage pool 1 and the drainage pump 3, so that the sewage can be prevented from flowing in the reverse direction along the pipeline.

[0055] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A wastewater treatment system for a chemical plant, located underground, characterized in that, The chemical plant domestic sewage treatment system includes: sewage tank (1), sewage pump (2), drainage pump (3), sump (4), and liquid level detection component (5); The sewage tank (1) contains domestic sewage; The sewage pump (2) is connected to the sewage tank (1), and the sewage pump (2) is also connected to an external sewage treatment pipeline; The water collection pit (4) is located below the sewage pump (2); the liquid level detection component (5) is partially located in the water collection pit (4); The drainage pump (3) is connected to the sump (4) and the sewage tank (1), and the drainage pump (3) is electrically connected to the liquid level detection component (5).

2. The chemical plant domestic wastewater treatment system according to claim 1, characterized in that, The liquid level detection component (5) includes a first liquid level gauge (51) and a first contactor (52); The first level gauge (51) is installed in the water collection pit (4); The first contactor (52) is electrically connected to the first level gauge (51) and the drain pump (3).

3. The chemical plant domestic wastewater treatment system according to claim 2, characterized in that, The chemical plant domestic sewage treatment system also includes an alarm (6), which is installed on the ground and is electrically connected to the first contactor (52).

4. The chemical plant domestic wastewater treatment system according to claim 3, characterized in that, The chemical plant domestic sewage treatment system also includes a second level gauge (7) and a second contactor (8). The second level gauge (7) is installed in the sewage tank (1), and the second contactor (8) is electrically connected to the second level gauge (7) and the alarm (6).

5. The chemical plant domestic wastewater treatment system according to claim 1, characterized in that, A grating plate (41) is provided on the water collection pit (4), and the sewage pump (2) is located above the grating plate (41).

6. The chemical plant domestic wastewater treatment system according to claim 1, characterized in that, The sewage tank (1) is a fiberglass water collection tank.

7. The chemical plant domestic wastewater treatment system according to claim 1, characterized in that, The sewage tank (1) is provided with an inspection port (11) and a sedimentation inspection port (12), which extend out of the ground.

8. The chemical plant domestic wastewater treatment system according to claim 1, characterized in that, A filter (21) is provided between the sewage tank (1) and the sewage pump (2).

9. The chemical plant domestic wastewater treatment system according to claim 1, characterized in that, The chemical plant domestic sewage treatment system also includes a sewage inspection well (13), which is located in front of the inlet of the sewage tank (1).

10. The chemical plant domestic wastewater treatment system according to any one of claims 1 to 9, characterized in that, A check valve (9) is provided between the sewage tank (1) and the sewage pump (2); and a check valve (9) is also provided between the drainage pump (3) and the sewage tank (1).

Images