Photolysis device for degrading COD (Chemical Oxygen Demand) in water

Abstract

The utility model relates to a photolysis device for degrading COD (Chemical Oxygen Demand) in water, which comprises a top plate and a bottom plate which are arranged up and down at an interval, a front plate and a rear plate which are arranged front and back at an interval and two side plates which are arranged left and right at an interval are arranged between the top plate and the bottom plate to form an overall cuboid appearance structure; a plurality of feeding assemblies are installed below the front plate at intervals in the length direction, each feeding assembly comprises a feeding pipe transversely erected between the front plate and the rear plate, a plurality of discharging through holes are formed in the wall face of each feeding pipe, an annular end plate is installed at the end, located in front of the front plate, of the feeding pipe, and a closed end plate is installed at the end, located behind the rear plate, of the feeding pipe; a discharge hole is formed in the front plate; a plurality of groups of photolysis units penetrate through the top plate from top to bottom and are mounted downwards; the photolysis unit can be combined to photocatalyze water, water entering the photolysis device from the lower feeding pipe flows out from the upper discharging port after being treated, and the water treatment device is suitable for circulating treatment of the water, particularly suitable for treatment of organic matter-containing water with COD (chemical oxygen demand) of about 10,000 mg / L, simple in overall structure, convenient to use and good in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment equipment technical field especially a photolysis device of degradation COD in water. BACKGROUND

[0002] Chemical oxygen demand COD (Chemical Oxygen Demand) it is with chemical method measure the quantity of water sample needs to be oxidized reducing material, wastewater, wastewater treatment plant effluent and contaminated water, can be oxidized by strong oxidizing agent (generally organic matter) the oxygen equivalent of material.

[0003] In recent years, photocatalysis technology increasingly becomes the research hotspot of environmental purification, and photocatalysis can decompose, transform and mineralize various organic pollutants under certain light conditions, and is considered as an effective way to solve environmental pollution problems.

[0004] In the prior art, the device for purifying water body in combination with photocatalysis technology is generally complex in structure and is not conducive to recycling treatment in actual production. UTILITY MODEL CONTENT

[0005] To solve the above problems, the application provides a photolysis device for degrading COD in water, which has a reasonable structure, can combine the photocatalysis unit to perform photocatalysis on the water body, is suitable for recycling treatment of the water body, especially for treating organic matter-containing water with COD of about 10000mg / L, and has a simple overall structure, is convenient to use, and has good practicability.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A photolysis device for degrading COD in water comprises a top plate and a bottom plate arranged at intervals up and down, a front plate and a rear plate arranged at intervals front and back and two side plates arranged at intervals left and right are installed between the top plate and the bottom plate, and the overall shape structure is a cuboid; a plurality of feeding assemblies are installed at intervals along the length direction below the front plate, a single feeding assembly comprises a feeding pipe supported horizontally between the front plate and the rear plate, a plurality of through holes for discharging materials are formed on the wall surface of the feeding pipe, a ring-shaped end plate is installed at the end of the feeding pipe in front of the front plate, and a closed end plate is installed at the end of the feeding pipe behind the rear plate; a discharge port is installed on the upper part of the front plate; a plurality of photolysis units are installed downward through the top plate from top to bottom.

[0008] As a further improvement of the above technical scheme:

[0009] A reinforcing plate assembly is installed around the circumferential outer part of the front plate, the rear plate and the two side plates.

[0010] The structure of the reinforcing plate assembly is that a horizontal plate is arranged to form a ring along the circumference, and two or more groups of vertical plates are arranged between the top plate and the bottom plate and are arranged on the front plate, the side plate and the rear plate.

[0011] The structure of the single group of photolysis units is that a support beam is arranged between the front plate and the rear plate, a plurality of groups of lamps are arranged from top to bottom towards the support beam and pass through the top plate, the bottom end of the single group of lamps is inserted into the corresponding hole of the support beam, and the top end of the lamp group above the top plate is provided with a locking piece.

[0012] The two ends of the support beam are respectively welded and fixed on the inner wall surface of the front plate and the inner wall surface of the rear plate, and the cross section of the support beam is an inverted U-shaped structure.

[0013] The single group of lamps each comprises an ultraviolet lamp tube, and the ultraviolet lamp tube is externally sleeved with a quartz sleeve; one end of the quartz sleeve is a closed end, the closed end is inserted downward into the hole of the support beam, and the other end of the quartz sleeve is sealed by a sealing piece; and a silica gel isolation is arranged between the upper end of the quartz sleeve and the top plate.

[0014] The top surface of the top plate is provided with a mounting plate corresponding to the photolysis unit, and the side surface of the mounting plate is provided with a rectifier corresponding to the lamp group.

[0015] One side of the side plate is provided with a liquid level gauge port one and a backup port one, and the other side of the side plate is provided with a manhole.

[0016] The front plate on both sides of the discharge port is provided with an observation port, and the middle part of the front plate is provided with a liquid level gauge port two, a temperature measuring port and a backup port two.

[0017] The lower part of the rear plate is provided with a slag discharge port.

[0018] Compared with the prior art, the photolysis device has the following beneficial effects:

[0019] The photolysis device can combine the photolysis unit to perform photocatalysis on the water body, the water entering the photolysis device from the lower inlet pipe flows out from the upper discharge port after treatment, is suitable for the cyclic treatment of the water body, especially for the treatment of the water containing organic matter with COD of about 10000 mg / L, has a simple overall structure, is convenient to use and has good practicability.

[0020] The photolysis device also has the following advantages:

[0021] The photolysis unit is completely accommodated in the photolysis device, so that the ultraviolet radiation is effectively prevented; when a single lamp group in the photolysis unit needs to be maintained or replaced, the locking piece at the top of the corresponding lamp group can be loosened, and the corresponding lamp group can be pulled out upward, so that the operation is convenient.

[0022] The feeding pipe transverse frame support is supported between the front plate and the rear plate in the feeding assembly, which effectively ensures the structural stability of the feeding pipe, and the through hole is arranged on the feeding pipe to allow the water in the feeding pipe to flow into the photolysis device, which effectively reduces or even avoids the impact of the water on the photolysis unit in the photolysis device. While achieving water feeding, the use reliability and service life of the photolysis unit are effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an appearance structure diagram of the utility model.

[0024] Figure 2 It is an appearance structure diagram of the utility model from another perspective.

[0025] Figure 3 It is a structural schematic diagram of the feeding assembly of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the photolysis unit of the utility model.

[0027] Wherein: 1, bottom plate; 2, side plate; 3, top plate; 4, photolysis unit; 5, mounting plate; 6, front plate; 7, feeding assembly; 8, reinforcing plate assembly; 9, rear plate;

[0028] 21, liquid level gauge port one; 22, spare port one; 23, manhole;

[0029] 40, rectifier; 41, support beam; 42, lamp group; 43, locking member;

[0030] 61, observation port; 62, liquid level gauge port two; 63, discharge port; 64, temperature measuring port; 65, spare port two;

[0031] 71, feeding pipe; 72, annular end plate; 73, closed end plate; 711, through hole;

[0032] 81, transverse plate; 82, vertical plate;

[0033] 91, slag discharge port. DETAILED DESCRIPTION

[0034] The specific implementation manner of the utility model will be described below in combination with the drawings.

[0035] As shown in Figure 1 and Figure 2 The photolysis device for degrading COD in water of the embodiment comprises a top plate 3 and a bottom plate 1 arranged at intervals in the up-down direction, a front plate 6 and a rear plate 9 arranged at intervals in the front-rear direction and two side plates 2 arranged at intervals in the left-right direction between the top plate 3 and the bottom plate 1, and forms an overall cuboid appearance structure; a plurality of feeding assemblies 7 are arranged at intervals along the length direction below the front plate 6.

[0036] AsFigure 3 As shown, a single feed assembly 7 includes a feed pipe 71 supported by a horizontal frame between the front plate 6 and the rear plate 9. A plurality of through holes 711 for supplying and discharging materials are provided on the wall of the feed pipe 71. An annular end plate 72 is installed at the end of the feed pipe 71 located in front of the front plate 6, and a closed end plate 73 is installed at the end of the feed pipe 71 located behind the rear plate 9, which effectively ensures the structural reliability of the feed pipe 71.

[0037] A discharge port 63 is installed on the upper portion of the front plate 6; and multiple groups of photolysis units 4 are installed downward through the top plate 3 from top to bottom.

[0038] In this embodiment, the photolysis unit 4 can be combined to perform photocatalysis on the water body. The water entering the photolysis device from the lower inlet pipe 71 can flow out from the upper outlet 63 after treatment and flow into the external use environment through the outlet 63, which is suitable for the circulation treatment of the water body.

[0039] In this embodiment, the feed pipe 71 in the feed assembly 7 is horizontally supported between the front plate 6 and the rear plate 9, which effectively ensures the structural stability of the feed pipe 71. By opening a through hole 711 on the feed pipe 71, the water in the feed pipe 71 flows into the photolysis device, effectively reducing or even avoiding the impact of the incoming water on the photolysis unit 4 inside the photolysis device. While achieving water inflow, it effectively helps to ensure the reliability and service life of the photolysis unit 4.

[0040] A reinforcing plate assembly 8 is installed around the front plate 6, the rear plate 9 and the side plates 2 on both sides to effectively ensure the structural stability of the photolysis device. At the same time, it effectively reduces the number of structural parts on the inner wall of the photolysis device and ensures that the water flows smoothly inside the photolysis device.

[0041] The structure of the reinforcing plate assembly 8 is: it includes horizontal plates 81 arranged in a circle along the circumferential direction, and more than two groups of horizontal plates 81 are arranged at intervals above and below; multiple groups of vertical plates 82 are also installed between the top plate 3 and the bottom plate 1, and the vertical plates 82 are arranged at intervals on the front plate 6, the side plate 2 and the rear plate 9.

[0042] like Figure 4 As shown, the structure of the single-group photolysis unit 4 is: it includes a support beam 41 installed between the front plate 6 and the rear plate 9, and multiple groups of lamp groups 42 are installed from top to bottom through the top plate 3 toward the support beam 41. The bottom end of the single-group lamp group 42 is inserted into the corresponding hole of the support beam 41, and a locking part 43 is installed at the top of the lamp group 42 located above the top plate 3.

[0043] In this embodiment, the photolysis unit 4 is completely housed inside the photolysis device, effectively preventing ultraviolet radiation from radiating outward; when a single lamp group 42 in the photolysis unit 4 needs to be maintained or replaced, the locking piece 43 on the top of the corresponding lamp group 42 can be loosened and the corresponding lamp group 42 can be pulled out upward, which is easy to operate.

[0044] In the embodiment, a plurality of photolysis units 4 are uniformly arranged in the photolysis device, and a plurality of vertically arranged lamp groups 42 are arranged in each photolysis unit 4, which effectively ensures the density and uniformity of the arrangement of the lamp groups 42 in the photolysis device, and helps to ensure that the water in the photolysis device can be treated by the lamp groups 42 in all directions, thereby ensuring the treatment effect.

[0045] The two ends of the support beam 41 are respectively welded and fixed to the inner wall surface of the front plate 6 and the inner wall surface of the rear plate 9; the cross section of the support beam 41 is an inverted U-shaped structure.

[0046] In the embodiment, the arrangement of the support beam 41 effectively facilitates the installation and operation of the lamp group 42, and effectively ensures the structural reliability of the lamp group 42 after installation relative to the photolysis device.

[0047] Each lamp group 42 includes an ultraviolet lamp tube, and the ultraviolet lamp tube is externally sleeved with a quartz sleeve; one end of the quartz sleeve is a closed end, which is downwardly inserted into the hole of the support beam 41, and the other end of the quartz sleeve is sealed by a sealing element; a silica gel isolation is installed between the upper end of the quartz sleeve and the top plate 3.

[0048] In the embodiment, the quartz sleeve with one end closed is sleeved outside the ultraviolet lamp tube, and the closed end is downwardly inserted into the support beam 41 through the top plate 3, which effectively ensures the sealing reliability of the bottom end of the quartz sleeve, and especially prevents the water from affecting the lamp group 42.

[0049] The upper end of the quartz sleeve is sleeved with silica gel, which can be an O-ring structure sleeved on the quartz sleeve, so that the quartz sleeve and the frame steel body including the top plate 3 are effectively isolated without contact.

[0050] The lamp group 42 in the embodiment effectively ensures that the underwater part reaches the sealing level of IP68, and the above-water part reaches the sealing level of IP65, thereby effectively ensuring the normal use of the lamp group 42.

[0051] In the embodiment, the cable led out from the top end of the lamp group 42 can be protected by a waterproof sleeve.

[0052] The top surface of the top plate 3 is provided with an installation plate 5 corresponding to the photolysis unit 4, and the side surface of the installation plate 5 is provided with a rectifier 40 corresponding to the lamp group 42.

[0053] The lower part of one side plate 2 is provided with a liquid level gauge port one 21 and a backup port one 22, and the middle part of the other side plate 2 is provided with a manhole 23 for people to enter and exit.

[0054] In the embodiment, the backup port one 22 is used as a backup of the liquid level gauge port one 21 for use of the liquid level gauge.

[0055] The manhole 23 is used for personnel to enter and exit when needed; during normal use of the photolysis device, the temporarily unused ports including the manhole 23 and the backup port one 22 can be sealed by corresponding end plates.

[0056] The front plate 6 located on both sides of the discharge port 63 is provided with an observation port 61, and the inside can be observed through the observation port 61.

[0057] The front plate 6 is provided with a liquid level meter port two 62, a temperature measuring port 64 and a backup port two 65 at the middle part.

[0058] In the embodiment, the backup port two 65 is used as a backup of the liquid level meter port two 62 and the temperature measuring port 64.

[0059] The rear plate 9 is provided with a residue discharge port 91 at the lower part.

[0060] The use mode of the utility model is:

[0061] The water to be treated flows into the feeding pipe 71 of each group of feeding assemblies 7, enters the inside of the photolysis device through the through hole 711 on the feeding pipe 71, the groups of lamp groups 42 in the photolysis unit 4 work, ultraviolet light is emitted through the ultraviolet lamp, and the water body is catalyzed by light to generate a reaction; with the continuous inflow of the water body from below the front plate 6, the water body flows and catalyzes in the photolysis device, and then flows out from the discharge port 63 above the front plate 6.

[0062] In actual use, the liquid level in the photolysis device can be measured through the liquid level meter port one 21 and the liquid level meter port two 62; the inside of the photolysis device can be observed through the observation port 61; and the water body in the photolysis device can be measured in temperature through the temperature measuring port 64.

[0063] After the water treatment is completed, the residues in the photolysis device can be discharged outward through the residue discharge port 91; when needed, the end plate at the manhole 23 can be removed, and personnel can enter the inside of the photolysis device to check and maintain.

[0064] The utility model is based on the ultraviolet catalytic oxidation technology (UV-AOP), and utilizes the specific wavelength of ultraviolet light; when the organic matter (macromolecule, long chain, benzene ring, heterocyclic ring and the like) absorbs enough energy, it is converted into a free radical molecule with a higher energy level.

[0065] In actual use, hydrogen peroxide can also be added to the photolysis device to further assist in the treatment of the water body; under the irradiation of a specific wavelength, the hydrogen peroxide is photolyzed into two hydroxyl radicals, which can rapidly react with the organic matter and inorganic matter in the water; different oxidation reactions ultimately convert the organic impurities into CO2 and H2O, and the intermediate products containing oxygen functional groups significantly increase in the reaction. These intermediate products contain one or more -OH, =O, COOH- functional groups, which usually show less toxicity and have higher bioavailability than the initial organic matter.

[0066] That is, the photolysis device in the embodiment can utilize specific wavelengths of ultraviolet light in combination with the synergistic effect of H2O2 to break long-chain, benzene ring, and heterocyclic macromolecules into small molecules containing oxygen-containing functional groups. The oxygen-containing functional groups have high biodegradability, and the small molecules are mostly low-boiling substances and have good evaporation properties, thereby effectively ensuring the treatment effect of the water body.

[0067] According to detection, the photolysis device can uniformly reduce COD to less than 300 mg / L from a water body with a COD organic matter content of about 10,000 mg / L, thereby meeting the pipe-inlet sewage discharge standard of a chemical industrial park.

[0068] The photolysis device has simple overall structure, is convenient to use, is suitable for the cyclic treatment of a water body, and is particularly suitable for the treatment of a water body containing organic matter with a COD of about 10,000 mg / L, and has good practicability.

[0069] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be mutually referred to.

[0070] The above description is an explanation of the utility model, not a limitation of the utility model. The scope defined by the utility model is shown in the claims, and any modification within the protection scope of the utility model can be made.

Claims

1. A photolysis device for degrading COD in water, characterized by: The utility model provides a photolysis device, including top plate (3) and bottom plate (1) of interval arrangement, install front and rear interval arrangement's front plate (6) and rear plate (9) between top plate (3) and bottom plate (1), left and right interval arrangement's two side plates (2), constitute the overall appearance structure of cuboid, the front plate (6) below along length direction interval installation has a plurality of feeding assembly (7), single feeding assembly (7) includes the feeding pipe (71) of horizontal frame support between front plate (6) and rear plate (9), the wall surface of feeding pipe (71) is opened with a plurality of through -hole (711) for out of material, the end of feeding pipe (71) located in front plate (6) front installs annular end plate (72), the end of feeding pipe (71) located in rear plate (9) rear installs closed end plate (73), the front plate (6) upper portion installs the discharge port (63), from top to bottom passes through top plate (3) and is installed with a plurality of groups of photolysis unit (4) downward.

2. The photolysis device for degrading COD in water according to claim 1, characterized in that: The reinforcing plate assembly (8) is installed around the front plate (6), the rear plate (9) and the two side plates (2) circumferentially outside.

3. The photolysis device for degrading COD in water according to claim 2, characterized in that: The reinforcing plate assembly (8) comprises a horizontal plate (81) arranged in a circle around the circumference, and two or more groups of the horizontal plate (81) are arranged in an interval manner.

4. The photolysis device for degrading COD in water according to claim 1, characterized in that: The single group of photolysis unit (4) comprises a support beam (41) installed between the front plate (6) and the rear plate (9), a plurality of groups of lamp groups (42) are installed from top to bottom through the top plate (3) towards the support beam (41), the bottom end of the single group of lamp groups (42) is inserted into the corresponding hole of the support beam (41), and the top end of the lamp group (42) located above the top plate (3) is installed with a locking member (43).

5. The photolysis device for degrading COD in water according to claim 4, characterized in that: The two ends of the support beam (41) are respectively welded and fixed on the inner wall surface of the front plate (6) and the inner wall surface of the rear plate (9), and the cross section of the support beam (41) is in an inverted U-shaped structure.

6. The photolysis device for degrading COD in water according to claim 4, characterized in that: The single group of lamp groups (42) each comprises an ultraviolet lamp tube, and the ultraviolet lamp tube is externally sleeved with a quartz sleeve; one end of the quartz sleeve is a closed end, the closed end is inserted downward into the hole of the support beam (41), and the other end of the quartz sleeve is sealed with a sealing member; a silica gel isolation is installed between the upper end of the quartz sleeve and the top plate (3).

7. The photolysis device for degrading COD in water according to claim 4, characterized in that: The top surface of the top plate (3) is installed with a mounting plate (5) arranged correspondingly to the photolysis unit (4), and the side surface of the mounting plate (5) is installed with a rectifier (40) corresponding to the lamp group (42) one by one.

8. The photolysis device for degrading COD in water of claim 1, wherein: One side plate (2) is installed with a liquid level gauge port one (21) and a backup port one (22) at the lower part, and the other side plate (2) is provided with a manhole (23) for people to enter and exit at the middle part.

9. The photolysis device for degrading COD in water of claim 1, wherein: The front plate (6) located on both sides of the discharge port (63) is installed with an observation port (61), and the front plate (6) is installed with a liquid level gauge port two (62), a temperature measuring port (64) and a backup port two (65) in an interval manner at the middle part.

10. The photolysis device for degrading COD in water of claim 1, wherein: The rear plate (9) is installed with a slag discharge port (91) at the lower part.

Images