CN212757604U - Anti-gravity type filter device for on-line monitoring of water quality of aquaculture water area - Google Patents

Abstract

The utility model discloses an antigravity filter for on-line monitoring water quality in aquaculture waters, which comprises a shell, the bottom of the shell is connected with a water inlet pipe, a check valve is arranged on the water inlet pipe, the shell below the connecting point of the water inlet pipe and the shell is a sewage draining cavity which is in an inverted round platform shape, and the bottom end of the sewage discharging cavity is also connected with a sewage discharging pipe with an adjusting valve, the shell above the connection point of the water inlet pipe and the shell is a filter cavity, a filtering cylinder is arranged in the filtering cavity, the top of the filtering cylinder is connected with the top plate of the shell, the bottom of the filtering cylinder is supported by a supporting frame fixedly connected in the shell, a plurality of through holes are arranged on the bottom surface of the filtering cylinder and the side wall of the bottom of the filtering cylinder, a mesh bag is arranged in the filter cylinder body, the mesh bag is made of bolting silk, and 0.6-1.0mm quartz sand is also contained in the mesh bag.

Description

Anti-gravity type filter device for on-line monitoring of water quality of aquaculture water area

Technical Field

The utility model relates to a water filter equipment, especially an anti-gravity formula filter equipment of aquaculture waters quality of water on-line monitoring.

Background

Filtration of impurities in a body of water generally refers to the operation of separating fine particulate matter mixed or suspended in the water from the liquid by a filter medium under the action of force. From the power point of view, the filtration can be generally divided into gravity filtration, pressure filtration, vacuum filtration and centrifugal filtration; from the perspective of the interception of the filter medium, surface filtration and depth filtration can be used. The difference of the separation object and the operation purpose in the filtering operation determines the filtering power and the medium interception mode.

On-line monitoring of water quality in aquaculture water is a necessary prerequisite for fishery informatization, however, suspended impurities, microorganisms, phytoplankton, biological larvae or adults in water are attached to the surface of a sensor or block pipelines of equipment, so that data errors are caused frequently. The current solution is: firstly, the sensor or the equipment pipeline is irregularly cleaned manually according to specific conditions; secondly, a filtering device is arranged at the front end, and the filtering device is irregularly and manually cleaned according to specific conditions. The manual cleaning operation restricts the automatic requirement of the water quality on-line monitoring, and the development of related equipment matched with the water quality on-line monitoring system has great significance for upgrading the fishery production mode.

From the angle of aquaculture water quality on-line monitoring, set up filter equipment at the sensor front end and require two conditions to be satisfied: firstly, the filtering device has an automatic cleaning or back flushing function; secondly, the filtration process can not affect the observation indexes of dissolved oxygen and the like. At present, a filtering device capable of realizing automatic cleaning or back flushing functions is in contact with air for aeration in the filtering process, or the partial pressure changes to change the oxygen partial pressure in the filtering process, so that the dissolved oxygen in a water body rises as a result, relevant indexes are influenced, and the water quality monitoring result deviates. The existing filtering device can not automatically clean and backflush, or can not solve the problem of dissolved oxygen rising, and can not be matched with a water quality online monitoring system for use.

Chinese patent CN110180228A discloses an antigravity type precipitation separation device for water treatment process, which comprises a high tower, wherein the top of the high tower is provided with a high-level tank for storing water, the middle part of the tower is a gravity separation zone, the bottom of the tower is a precipitation zone, the high-level tank is connected with a water inlet at the lower part of the high tower through a high-level water pipe, high-pressure water enters the gravity separation zone in the tower from the water inlet, and forms a spiral upstream rotating water flow along the inner wall of the high tower, and contacts with the object to be treated inputted from the top of the tower, the liquid mixture is discharged from a water outlet at the top, and the precipitate falls under the action of gravity and enters the precipitation zone. The device can effectively reach the solid-liquid separation effect through centrifugal filtration, realizes continuous thorough filtration, and its defect lies in that the suspended impurities, microorganism, phytoplankton, biological larva or adult that are close to water density can't separate, and there is the aeration phenomenon in the elevated tank water storage process in liquid simultaneously, can't satisfy the technical requirement of quality of water on-line monitoring equipment.

Chinese patent CN110604950A discloses an efficient gravity type valveless filter, which comprises a water production chamber, a filter chamber and siphon equipment, wherein the water production chamber and the filter chamber are both cylindrical, a conical bin is arranged between the filter chamber and the water production chamber, and a water inlet and a water outlet are formed in the water production chamber; a first buffer layer, a filter layer, a second buffer layer and a water purification layer are arranged in the filter chamber, and a return pipe is arranged in the filter chamber; the siphon mechanism comprises a siphon water inlet, a siphon water outlet and a siphon pipe; the siphon break mechanism comprises a siphon break pipe and a siphon break bucket. The filter is a cylindrical tank body, is made of steel in the same specification, has low cost, is about 50 percent of the whole production cost of a van-type valveless filter, is energy-saving and environment-friendly, does not use electricity when the equipment works, has zero energy consumption, fully utilizes a water head and a siphon principle generated by the action of gravity and water head difference, has a back cleaning function, and has the defect that the filter is easy to contact with air when filtered water is discharged into a water chamber, so that the water-soluble oxygen to be detected is changed, and the technical requirement of online monitoring of water quality cannot be met.

Chinese patent CN207659169U discloses a gravity filter device, including device body, filter, the baffle of intaking, blow-down pipe, filtering material layer, supporting layer, filter plate, gravity sensor, catch basin and rubber cutting ferrule, device body one side is provided with the tank, and when the water pump work was taken water, the baffle of intaking can effectively avoid the impact of rivers to stir muddy with filter mesosome, is favorable to the water gently to filter in the filter. The device adopts that different mineral aggregates form the compound reverse filter layer of multilayer from big to small, has strengthened holding back the filter effect by a wide margin, and the surface of filter medium forms the thin biomembrane of one deck simultaneously, can further adsorb organic matter and inorganic matter in aquatic, and its defect is that large-scale impurity blowdown can't be accomplished, and the unable automatic cleaning of filter membrane is changed to because filter non-seal can dissolve oxygen to quality of water and produce the change, lead to quality of water monitoring time data and water inlet data to change, can't satisfy quality of water on-line monitoring technical requirement.

Therefore, there is a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, can enough guarantee to be surveyed the dissolved oxygen volume in the water body and can not change, have the anti-gravity type filter equipment of recoil function again.

The technical solution of the utility model is that: the utility model provides an aquaculture waters quality of water on-line monitoring antigravity formula filter equipment, includes casing 1, its characterized in that: the bottom of the shell 1 is connected with a water inlet pipe 2, the water inlet pipe 2 is provided with a check valve 3, the shell below the connection point of the water inlet pipe 2 and the shell 1 is a sewage discharge cavity 4, the sewage discharge cavity 4 is in an inverted round table shape, the bottom end of the sewage discharge cavity 4 is also connected with a sewage discharge pipe 6 with an adjusting valve 5, the shell above the connection point of the water inlet pipe 2 and the shell 1 is a filter cavity 7, a filter cylinder 8 is arranged in the filter cavity 7, the top of the filter cylinder 8 is connected with the top plate of the shell 1, the bottom of the filter cylinder 8 is supported by a support frame 9 fixedly connected in the shell 1, the bottom surface and the side wall of the bottom of the filter cylinder 8 are provided with a plurality of through holes, a mesh bag 10 is placed in the filter cylinder 8, the mesh bag 10 is made of bolting silk, 0.6-1.0mm quartz sand is also contained in the mesh bag 10, the middle part of the filter, the inlet end of the water filtration discharge pipe 11 is located above the mesh bag 10, the outlet end of the water filtration discharge pipe 11 is located outside the bottom of the shell 1, an overflow pipe 12 is further arranged in the shell 1, the horizontal height of the top opening of the overflow pipe 12 is higher than the inlet end of the water filtration discharge pipe 11 and lower than the top plate of the shell 1, and the outlet end of the overflow pipe 12 is also located outside the bottom of the shell 1.

Compared with the prior art, the utility model, have following advantage:

the anti-gravity type filtering device for the on-line monitoring of the water quality of the aquaculture water area in the structural form has the advantages of simple structure, ingenious design and reasonable layout. The filter material back-flushing device is designed with a special structure aiming at various problems of the traditional filter device, solves the problem of deviation of dissolved oxygen index caused by aeration of the traditional filter device by an upper overflow sampling method, realizes automatic back-flushing cleaning operation on the filter material of the device under the action of gravity by a bottom pollution discharge method, saves labor and labor, and can keep a good filter effect for a long time. The device has compact structure and small occupied space, and is beneficial to actual shoreside operation. Meanwhile, the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has various advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.

Drawings

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

Detailed Description

The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1: an anti-gravity type filter device for on-line monitoring of water quality in aquaculture waters comprises a shell 1, wherein the bottom of the shell 1 is connected with a water inlet pipe 2, a check valve 3 is arranged on the water inlet pipe 2, the shell below the connection point of the water inlet pipe 2 and the shell 1 is a sewage discharge cavity 4, the sewage discharge cavity 4 is in an inverted round table shape, the bottom end of the sewage discharge cavity 4 is also connected with a sewage discharge pipe 6 with a regulating valve 5, the shell above the connection point of the water inlet pipe 2 and the shell 1 is a filter cavity 7, a filter cylinder 8 is arranged in the filter cavity 7, the top of the filter cylinder 8 is connected with the top plate of the shell 1, the bottom of the filter cylinder 8 is supported by a support frame 9 fixedly connected in the shell 1, a plurality of through holes are arranged on the bottom surface and the side wall of the bottom of the filter cylinder 8, a mesh bag 10 is placed in the filter cylinder, the filter screen comprises a screen bag 10, a filter cylinder body 8 and an overflow pipe 12, wherein the screen bag 10 is filled with 0.6-1.0mm quartz sand, the middle part of the filter cylinder body 8 is connected with a water filtering discharge pipe 11, the inlet end of the water filtering discharge pipe 11 is positioned above the screen bag 10, the outlet end of the water filtering discharge pipe 11 is positioned outside the bottom of the shell 1, the level of an opening at the top end of the overflow pipe 12 is higher than the inlet end of the water filtering discharge pipe 11 and is lower than the top plate of the shell 1, and the outlet end of the overflow pipe 12 is also positioned outside the bottom of the shell 1.

The utility model discloses the anti-gravity formula filter equipment of aquaculture waters quality of water on-line monitoring's of implementing working process as follows: the device is arranged beside a water area needing water quality online monitoring, the inlet end of a water inlet pipe 2 is connected with a water pump in the sampled water area through a pipeline, the outlet end of a water filtering discharge pipe 11 is connected with a sample inlet of an online monitoring device through a pipeline, the water body in the sampled water area is pumped into the water inlet pipe 2 by the water pump, a check valve 3 on the water inlet pipe 2 is opened, the water body enters a sewage discharge cavity 4 through the water inlet pipe 2 in a one-way mode, in the process, large and heavy impurities (such as silt and the like) in the water body can fall along the inclined inner wall of the sewage discharge cavity 4 and are finally collected into a sewage discharge pipe 6 to be discharged, the water discharge speed is adjusted by adjusting an adjusting valve 5, and the water inlet speed of the device is ensured;

because the water inlet speed is higher than the water discharge speed, the water level of the device continuously rises, when the water level rises to the through hole at the bottom of the filter cylinder body 8, the water enters the filter cylinder body 8 through the through hole and is filtered under the action of quartz sand in the mesh bag 10, finally, the liquid level in the shell 1 is stable at the opening at the top end of the overflow pipe 12, the liquid level in the filter cylinder body 8 is flush with the opening at the top end of the overflow pipe 12 at the moment, but the water body above the mesh bag 10 is filtered, the filtered water body is discharged through the filtered water discharge pipe 11 and is sent into the water quality online monitoring equipment, and in the process, the filtered water body enters from the water inlet 2, is filtered by the quartz sand in the mesh bag 10 in the filter cylinder body 8 and is discharged through the discharge pipe 11, and no aeration process exists, so that relevant indexes of dissolved water filtration and;

when the liquid level in this device is in balanced state, lighter impurity can float near the surface of water in the water, and discharge through overflow pipe 12, heavier impurity then can discharge through blow off pipe 6 in the water, most suspended class impurity passes through overflow pipe 12 and discharges, wait to be filtered the suspension class impurity of water discharge pipe 11 discharge water part can be by the quartz sand filtering in pocket 10 through filtering 8 bottom porous parts of barrel, and the water after the filtration then monitors in continuously carrying quality of water on-line monitoring equipment.

When the device is stopped, the water pump is closed, the check valve 3 on the water inlet pipe 2 is in a closed state, the water body in the shell 1 can be discharged only through the drain pipe 6, in the process of discharging the water body, part of the water body above the mesh bag 10 flows downwards under the action of gravity to reversely flush the mesh bag 10, impurities attached to quartz sand can be reversely flushed, so that the effect of automatic cleaning is achieved, and the flushed water body is also discharged through the drain pipe 6; that is to say at every turn and stop using, back flush is all carried out once automatically to this device, can save a large amount of human labor on the one hand, and on the other hand then can let this device guarantee better filter effect in relatively longer time.

Claims (1)

1. The utility model provides an aquaculture waters quality of water on-line monitoring antigravity formula filter equipment, includes casing (1), its characterized in that: the bottom of the shell (1) is connected with a water inlet pipe (2), a check valve (3) is arranged on the water inlet pipe (2), the shell below the connecting point of the water inlet pipe (2) and the shell (1) is a sewage discharging cavity (4), the sewage discharging cavity (4) is in an inverted round table shape, the bottom end of the sewage discharging cavity (4) is also connected with a sewage discharging pipe (6) with an adjusting valve (5), the shell above the connecting point of the water inlet pipe (2) and the shell (1) is a filtering cavity (7), a filtering cylinder (8) is arranged in the filtering cavity (7), the top of the filtering cylinder (8) is connected with the top plate of the shell (1), the bottom of the filtering cylinder (8) is supported by a supporting frame (9) fixedly connected in the shell (1), a plurality of via holes are formed in the side walls of the bottom surface and the bottom of the filtering cylinder (8), and a mesh bag (10) is placed in, the utility model discloses a filter screen, including pocket (10), filter barrel (8), overflow pipe (12), the open-top horizontal height in overflow pipe (12) is higher than the entry end of drainage pipe (11), and is less than the roof of casing (1), and the exit end of overflow pipe (12) also is located outside the bottom of casing (1), the quartz sand of 0.6-1.0mm is made by the bolting-silk, still be equipped with in pocket (10), the middle part of filtering barrel (8) still is connected with drainage discharge pipe (11), the entry end of drainage discharge pipe (11) is located the top of pocket (10), the exit end of drainage discharge pipe (11) then is located outside the bottom of casing (1), still be provided with overflow pipe (12) in casing (1), overflow pipe (12) top open-.

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