CN220183024U

CN220183024U - Offshore platform domestic sewage advanced treatment device

Info

Publication number: CN220183024U
Application number: CN202321554204.0U
Authority: CN
Inventors: 王龙庆; 秦永亮; 刘兴超
Original assignee: Qingdao Haiyan Environmental Technology Engineering Co ltd
Current assignee: Qingdao Haiyan Environmental Technology Engineering Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-12-15
Anticipated expiration: 2033-06-16

Abstract

The utility model relates to the field of wastewater treatment, and discloses an offshore platform domestic wastewater advanced treatment device which comprises a front-end sterilization device for sterilizing conventionally treated domestic water, a first filtering tank for filtering suspended matters such as bacterial corpse and the like, a water storage tank for storing advanced treatment water and a negative pressure degassing tank for separating solution oxygen from water, wherein a liquid outlet of the front-end sterilization device is communicated with a liquid inlet of the first filtering tank, a liquid outlet of the first filtering tank is communicated with a liquid inlet of the water storage tank, and a liquid outlet of the water storage tank is communicated with a liquid inlet of the negative pressure degassing tank. The utility model is beneficial to improving the utilization rate of water resources and is convenient for realizing the effect of reinjection of domestic water into stratum.

Description

Offshore platform domestic sewage advanced treatment device

Technical Field

The utility model relates to the field of wastewater treatment, in particular to an offshore platform domestic sewage advanced treatment device.

Background

Offshore platforms are truss structures that are raised above sea level and have horizontal decks for use in production operations or other activities. The domestic sewage of the offshore platform comprises three parts of flushing black water, kitchen grey water and washing grey water, the domestic sewage of the offshore platform is generally treated by adopting an electrolysis method, and the treated sewage is stored in a storage tank to wait for subsequent direct sea discharge.

With respect to the related technology, after the offshore oil exploitation platform is used for exploiting the submarine oil, the exploited place is required to be refilled with water so as to ensure that the geological structure of the exploited place tends to be stable, but indexes such as suspended matters, median particle size, iron bacteria, dissolved oxygen and the like of the conventionally treated domestic water are far greater than those of the refilled water, so that the conventionally treated domestic water cannot be used for refilling the stratum.

Disclosure of Invention

In order to achieve the effect of reinjection of domestic water into a stratum, the utility model provides an offshore platform domestic sewage advanced treatment device.

The utility model provides an offshore platform domestic sewage advanced treatment device, which adopts the following technical scheme:

the utility model provides an offshore platform domestic sewage advanced treatment device, includes the leading sterilizing equipment who disinfects to the domestic water of conventional processing, is used for carrying out filterable first filtration jar to suspended solid such as bacterium corpse, is used for carrying out the water storage jar that stores to the advanced treatment water and is used for the negative pressure degassing jar with the solution oxygen with the separation of water, leading sterilizing equipment's liquid outlet is linked together with first filtration jar inlet, and first filtration jar's liquid outlet is linked together with the inlet of water storage jar, and water storage jar liquid outlet is linked together with negative pressure degassing jar inlet.

Through adopting above-mentioned technical scheme, wait in advanced treatment's domestic sewage flows into the front-end sterilizing device through front-end sterilizing device's inlet, make front-end sterilizing device handle microorganisms such as iron bacteria in the domestic sewage, make the content of microorganisms such as iron bacteria in the domestic sewage be less than the reinjection water standard, accomplish in the domestic sewage of disinfecting gets into first filter tank, first filter tank intercepts suspended solid such as bacterium corpse in the domestic sewage, make the suspended solid of domestic sewage be less than 5mg/L, particle diameter median value is less than 3 microns, accomplish filterable advanced treatment water and get into the water storage tank and keep in, when needs reinjection to the stratum, advanced treatment water in the water storage tank gets into in the negative pressure degassing tank and carries out the deoxidation, make the dissolved oxygen content of deep treatment water be less than 0.05mg/L, make the index of advanced treatment water accord with the reinjection water index, be favorable to promoting the utilization ratio of water resource, be convenient for realize carrying out the effect of reinjection stratum to the domestic water.

Optionally, the device further comprises a buffer tank for temporarily storing the conventionally treated domestic water and a pre-filter for filtering the conventionally treated domestic water, wherein the pre-filter is communicated with a liquid inlet of the buffer tank, and a liquid outlet of the buffer tank is communicated with a liquid inlet of the pre-sterilization device.

Through adopting above-mentioned technical scheme, the leading filter can be to the domestic water after handling further filtration, is favorable to reducing the solid suspended solid in the domestic water, and then promotes the quality of water of domestic water, accomplishes filterable domestic water and stores to the buffer tank in, is favorable to realizing carrying out temporary storage's effect to domestic water.

Optionally, the front-end sterilizing device comprises a UV ultraviolet sterilizing device, a tubular flowmeter and a pressure gauge, wherein a liquid inlet of the UV ultraviolet sterilizing device is communicated with a liquid outlet of the buffer tank, a liquid outlet of the UV ultraviolet sterilizing device is communicated with a liquid inlet of the tubular flowmeter, a liquid outlet of the tubular flowmeter is communicated with a liquid inlet of the pressure gauge, and a liquid outlet of the pressure gauge is communicated with the first filter tank.

Through adopting above-mentioned technical scheme, when needs carry out the advanced treatment to domestic water, in the domestic water gets into UV ultraviolet sterilization device through the buffer tank, the microorganism such as iron bacteria in the domestic water is inactivated, and the tubular flowmeter observes the flow in the UV ultraviolet sterilization device, and the manometer detects the hydraulic pressure in the UV ultraviolet sterilization device, is favorable to guaranteeing UV ultraviolet sterilization device's bactericidal effect.

Optionally, the filter further comprises a second filter tank, wherein a liquid outlet of the second filter tank is communicated with a liquid outlet of the first filter tank, a reversing valve is communicated with a liquid outlet of the buffer tank, and two liquid outlets of the reversing valve are respectively communicated with a liquid inlet of the first filter tank and a liquid inlet of the second filter tank.

Through adopting above-mentioned technical scheme, when first filtration jar was filtered for a long time, made its filtration capacity decline, the switching-over valve was disconnected the inlet of first filtration jar and leading sterilizing equipment's liquid outlet, with the inlet of second filtration jar and leading sterilizing equipment's liquid outlet intercommunication, the operating personnel of being convenient for maintained first filtration jar, is favorable to the guarantee to domestic water's filtration efficiency.

Optionally, the liquid outlet of negative pressure degassing tank is connected with the water pump, and the output intercommunication of water pump has post-sterilization apparatus, and post-sterilization apparatus's liquid outlet is connected with the drain pipe.

By adopting the technical scheme, the water outlet pump is used for extracting the deeply treated water after deoxidation is finished, so that the deeply treated water enters the post-sterilization device for sterilization, and the probability of exceeding the content of microorganisms such as iron bacteria and the like in the deeply treated water is further reduced.

Optionally, the inlet of post sterilizing equipment is equipped with first water stop valve, and the output of water pump is connected with the liquid return pipe, and the liquid return pipe is equipped with the second water stop valve, and the liquid outlet of liquid return pipe is linked together with the inlet of negative pressure degassing jar.

Through adopting above-mentioned technical scheme, operating personnel need to sample and detect the degree of depth processing water before reinjection to the degree of depth processing water, if the oxygen content of degree of depth processing water still is greater than the index, closes first stagnant water valve, and the second stagnant water valve is opened, makes the negative pressure degasification jar continue to deoxidize the degree of depth processing water, is favorable to guaranteeing the quality of degree of depth processing water.

Optionally, the negative pressure degassing tank is provided with a liquid level meter for detecting the liquid level in the negative pressure degassing tank.

Through adopting above-mentioned technical scheme, detect the liquid level in the negative pressure degassing tank through the liquid level meter, be favorable to guaranteeing the deoxidization effect of negative pressure degassing tank to the advanced treatment water.

Optionally, the device further comprises a device skid base for installing the advanced treatment device, the device skid base is formed by welding pattern steel plates, a hoisting frame is arranged on the device skid base along the circumferential direction, and a hoisting steel rope is arranged at the upper end part of the hoisting frame.

Through adopting above-mentioned technical scheme, when installing advanced treatment device, drive hoist and mount frame through hoist and mount cable wire and move, hoist and mount frame drives advanced treatment device through equipment sledge base and moves, is convenient for realize installing and transporting the effect to advanced treatment device.

In summary, the utility model comprises at least one of the following beneficial technical effects:

1. the method comprises the steps that domestic sewage to be deeply treated flows into a front-end sterilizing device through a liquid inlet of the front-end sterilizing device, so that the front-end sterilizing device is used for treating microorganisms such as iron bacteria in the domestic sewage, the content of the microorganisms such as the iron bacteria in the domestic sewage is lower than a reinjection water standard, the sterilized domestic sewage enters a first filtering tank, the first filtering tank is used for intercepting suspended matters such as bacterial corpses in the domestic sewage, the suspended matters of the domestic sewage are less than 5mg/L, the median particle size is less than 3 microns, the filtered deep treatment water enters a water storage tank for temporary storage, and when stratum needs to be reinjected, the deep treatment water in the water storage tank enters a negative pressure degassing tank for deoxidization, so that the dissolved oxygen content of the deep treatment water is less than 0.05mg/L, the index of the deep treatment water accords with the reinjection water index, the utilization rate of water resources is facilitated, and the effect of reinjecting the domestic water into the stratum is facilitated;

2. the pre-filter can further filter the treated domestic water, so that solid suspended matters in the domestic water are reduced, the quality of the domestic water is improved, the filtered domestic water is stored in the buffer tank, and the temporary storage effect of the domestic water is realized;

3. when needs carry out the advanced treatment to the domestic water, in the domestic water gets into UV ultraviolet sterilization device through the buffer tank, the microorganism such as iron bacteria in the domestic water is inactivated, and the tubular flowmeter observes the flow in the UV ultraviolet sterilization device, and the manometer detects the hydraulic pressure in the UV ultraviolet sterilization device, is favorable to guaranteeing UV ultraviolet sterilization device's bactericidal effect.

Drawings

Fig. 1 is a schematic diagram of the overall structure of an offshore platform domestic sewage advanced treatment device.

Fig. 2 is intended to highlight the schematic position of the tubular flowmeter and the pressure gauge.

Fig. 3 is intended to highlight the position of the hoisting frame and the hoisting ropes.

Reference numerals illustrate: 1. a front-end sterilization device; 2. a first filter tank; 3. a water storage tank; 4. a negative pressure degassing tank; 5. a buffer tank; 6. a pre-filter; 7. a second filter tank; 8. a post-sterilization device; 9. an equipment sledge base; 11. a UV sterilization device; 12. a tubular flowmeter; 13. a pressure gauge; 41. a water outlet pump; 42. a liquid level meter; 51. a reversing valve; 81. a drain pipe; 82. a first water stop valve; 83. a liquid return pipe; 84. a second water stop valve; 91. hoisting the frame; 92. and hoisting the steel rope.

Detailed Description

The present utility model will be described in further detail below with reference to the accompanying drawings.

The embodiment of the utility model discloses an offshore platform domestic sewage advanced treatment device.

Referring to fig. 1 and 2, an offshore platform domestic sewage advanced treatment device comprises a pre-filter 6, a buffer tank 5, a pre-sterilization device 1, a first filtering tank 2, a second filtering tank 7, a water storage tank 3, a negative pressure degassing tank 4 and an equipment skid base 9, the treated domestic water is conveyed into the pre-filter 6, the pre-filter 6 adopts a basket filter, the treated domestic water can be further filtered, solid suspended matters in the domestic water are reduced, and then the quality of the domestic water is improved.

Referring to fig. 1 and 2, the liquid outlet of the pre-filter 6 is communicated with the liquid inlet of the buffer tank 5, and the filtered domestic water is stored in the buffer tank 5, so that the temporary storage effect of the domestic water is realized. The liquid outlet of the buffer tank 5 is communicated with a centrifugal pump, and the output end of the centrifugal pump is communicated with the liquid inlet of the front sterilizing device 1. The pre-sterilization device 1 comprises a UV sterilization device 11, a tubular flowmeter 12 and a pressure gauge 13. The centrifugal pump delivers the domestic water in the buffer tank 5 into the UV sterilization device 11.

Referring to fig. 1 and 2, the uv ultraviolet sterilizing device 11 can destroy the molecular structure of DNA or RNA in the cells of the microorganism organism by using ultraviolet rays with proper wavelength, thereby causing the death of growing cells and/or the death of regenerating cells, and achieving the sterilizing effect. The UV ultraviolet sterilization device 11 further inactivates microorganisms such as iron bacteria in the domestic water, thereby improving the quality of the domestic water.

Referring to fig. 1 and 2, the liquid outlet of the UV ultraviolet sterilizing device 11 is communicated with the liquid inlet of the tubular flowmeter 12, the tubular flowmeter 12 observes the flow in the UV ultraviolet sterilizing device 11, the liquid outlet of the tubular flowmeter 12 is communicated with the liquid inlet of the pressure gauge 13, the pressure gauge 13 detects the hydraulic pressure in the UV ultraviolet sterilizing device 11, and the sterilizing effect of the UV ultraviolet sterilizing device 11 can be guaranteed.

Referring to fig. 1 and 2, the liquid outlet of the pressure gauge 13 is communicated with the first filtering tank 2, a flexible ceramic membrane is arranged in the first filtering tank 2, the flexible ceramic membrane is a novel porous separation membrane with the characteristics of corrosion resistance, aging resistance, high temperature resistance and the like, the nominal aperture is 1 μm, and the flexible ceramic membrane intercepts suspended matters such as bacterial corpses and the like in domestic sewage, so that the suspended matters of the domestic sewage are less than 5mg/L, and the median particle size is less than 3 microns. The liquid outlet of the first filtering tank 2 is communicated with the liquid inlet of the first filtering tank 2, and the filtered advanced treatment water of the first filtering tank 2 enters the water storage tank 3 for temporary storage.

Referring to fig. 1 and 2, the liquid outlet of the second filtering tank 7 is connected with the liquid outlet of the first filtering tank 2, the liquid outlet of the buffer tank 5 is communicated with a reversing valve 51, and two liquid outlets of the reversing valve 51 are respectively communicated with the liquid inlet of the first filtering tank 2 and the liquid inlet of the second filtering tank 7. When the filtering capacity of the first filtering tank 2 is reduced by long-time filtering, the reversing valve 51 disconnects the liquid inlet of the first filtering tank 2 from the liquid outlet of the front-end sterilization device 1.

Referring to fig. 1 and 2, the reversing valve 51 communicates the liquid inlet of the second filter tank 7 with the liquid outlet of the pre-sterilization device 1, and an operator maintains the flexible ceramic membrane in the first filter tank 2, so that the filtering efficiency of domestic water is guaranteed. The liquid outlet of the water storage tank 3 is communicated with the liquid inlet of the negative pressure degassing tank 4, when the stratum needs to be refilled, the deep treatment water in the water storage tank 3 enters the negative pressure degassing tank 4 for deoxidization, so that the content of dissolved oxygen in the deep treatment water is less than 0.05mg/L, and the index of the deep treatment water accords with the index of the reinjection water.

Referring to fig. 1 and 2, a liquid outlet of the negative pressure degassing tank 4 is connected with a water outlet pump 41, an output end of the water outlet pump 41 is communicated with a post-sterilization device 8, the water outlet pump 41 extracts the deeply treated water after deoxidation is completed, so that the deeply treated water enters the post-sterilization device 8 for sterilization, and the probability of exceeding the content of microorganisms such as iron bacteria in the deeply treated water is further reduced.

Referring to fig. 1 and 2, before reinjection of the advanced treatment water, an operator needs to sample and detect the advanced treatment water, if the oxygen content of the advanced treatment water is still greater than the index, a first water stop valve 82 is arranged at a liquid inlet of the post-sterilization device 8, the first water stop valve 82 is closed, an output end of the water outlet pump 41 is connected with a liquid return pipe 83, the liquid return pipe 83 is provided with a second water stop valve 84, and the second water stop valve 84 is opened, so that a liquid outlet of the liquid return pipe 83 is communicated with a liquid inlet of the negative pressure degassing tank 4. The water outlet pump 41 conveys the advanced treatment water back into the negative pressure degassing tank 4 through the liquid return pipe 83, and the negative pressure degassing tank 4 continuously deoxidizes the advanced treatment water, so that the quality of the advanced treatment water is ensured.

Referring to fig. 1 and 2, the negative pressure degassing tank 4 is provided with a liquid level meter 42, and the liquid level meter 42 detects the liquid level in the negative pressure degassing tank 4, so that the deoxidizing effect of the negative pressure degassing tank 4 on the deeply treated water can be ensured. The liquid outlet of the post-sterilization device 8 is connected with a drain pipe 81, and the water after the advanced treatment can be refilled through the drain pipe 81, so that the utilization rate of water resources is improved, and the effect of reinjection stratum to domestic water is realized.

Referring to fig. 1 and 3, the equipment skid base 9 is formed by welding a patterned steel plate, and positions and supports the advanced treatment device. The equipment sled base 9 is equipped with hoist and mount frame 91 along circumference, and hoist and mount frame 91 upper end is equipped with hoist and mount cable 92. When the advanced treatment device is installed, the hoisting steel rope 92 is pulled by hoisting equipment such as a gantry crane, and then the equipment skid base 9 is driven to move by the hoisting frame 91, so that the effect of installing and transferring the advanced treatment device is realized.

The implementation principle of the offshore platform domestic sewage advanced treatment device provided by the embodiment of the utility model is as follows: the centrifugal pump conveys domestic water in the buffer tank 5 into the UV sterilization device 11, so that the UV sterilization device 11 can inactivate microorganisms such as iron bacteria in the domestic water, and the sterilized domestic water flows into the first filter tank 2, so that the flexible ceramic membrane intercepts suspended matters such as bacterial corpses in domestic sewage. The first filter tank 2 finishes filtering advanced treatment water and enters the water storage tank 3 for temporary storage, when the stratum needs to be refilled, the advanced treatment water in the water storage tank 3 enters the negative pressure degassing tank 4 for deoxidation, the water outlet pump 41 extracts the advanced treatment water after deoxidation, the advanced treatment water enters the post-sterilization device 8 for sterilization, the water after advanced treatment can be refilled through the drain pipe 81, the utilization rate of water resources is improved, and the effect of refilling the stratum to domestic water is realized conveniently.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. An offshore platform domestic sewage advanced treatment unit which is characterized in that: including leading sterilizing equipment (1) that disinfects to normal domestic water who handles, be used for carrying out filterable first filtration jar (2) to suspended solid such as bacterium corpse, be used for carrying out the water storage jar (3) that store to domestic water after disinfecting and be used for separating solution oxygen and negative pressure degassing tank (4) of water, the liquid outlet of leading sterilizing equipment (1) is linked together with first filtration jar (2) inlet, and the liquid outlet of first filtration jar (2) is linked together with the inlet of water storage jar (3), and water storage jar (3) liquid outlet is linked together with negative pressure degassing tank (4) inlet.

2. The offshore platform domestic sewage deep treatment device according to claim 1, wherein: the device is characterized by further comprising a buffer tank (5) for temporarily storing the conventionally treated domestic water and a pre-filter (6) for filtering the conventionally treated domestic water, wherein the pre-filter (6) is communicated with a liquid inlet of the buffer tank (5), and a liquid outlet of the buffer tank (5) is communicated with a liquid inlet of the pre-sterilization device (1).

3. The offshore platform domestic sewage deep treatment device according to claim 2, wherein: the front-mounted sterilization device (1) comprises a UV ultraviolet sterilization device (11), a tubular flowmeter (12) and a pressure gauge (13), wherein a liquid inlet of the UV ultraviolet sterilization device (11) is communicated with a liquid outlet of the buffer tank (5), a liquid outlet of the UV ultraviolet sterilization device (11) is communicated with a liquid inlet of the tubular flowmeter (12), a liquid outlet of the tubular flowmeter (12) is communicated with a liquid inlet of the pressure gauge (13), and a liquid outlet of the pressure gauge (13) is communicated with the first filter tank (2).

4. The offshore platform domestic sewage deep treatment device according to claim 2, wherein: still include second filter tank (7), the liquid outlet of second filter tank (7) is linked together with the liquid outlet of first filter tank (2), and the liquid outlet intercommunication of buffer tank (5) has switching-over valve (51), and two liquid outlets of switching-over valve (51) are linked together with the inlet of first filter tank (2) and the inlet of second filter tank (7) respectively.

5. The offshore platform domestic sewage deep treatment device according to claim 1, wherein: the liquid outlet of the negative pressure degassing tank (4) is connected with a water outlet pump (41), the output end of the water outlet pump (41) is communicated with a post-sterilization device (8), and the liquid outlet of the post-sterilization device (8) is connected with a drain pipe (81).

6. The offshore platform domestic sewage deep treatment device according to claim 5, wherein: the liquid inlet of rear-mounted sterilizing equipment (8) is equipped with first water stop valve (82), and the output of play water pump (41) is connected with back liquid pipe (83), and back liquid pipe (83) are equipped with second water stop valve (84), and the liquid outlet of back liquid pipe (83) is linked together with the inlet of negative pressure degassing jar (4).

7. The offshore platform domestic sewage deep treatment device according to claim 1, wherein: the negative pressure degassing tank (4) is provided with a liquid level meter (42) for detecting the liquid level in the negative pressure degassing tank (4).

8. The offshore platform domestic sewage deep treatment device according to claim 1, wherein: the deep treatment device is characterized by further comprising an equipment skid base (9) for installing the deep treatment device, the equipment skid base (9) is formed by welding pattern steel plates, a hoisting frame (91) is arranged on the equipment skid base (9) along the circumferential direction, and a hoisting steel rope (92) is arranged at the upper end part of the hoisting frame (91).