Sand cylinder filtration assisting device

Abstract

The invention discloses a sand cylinder filtration aiding device which comprises two dosing pumps, each dosing pump is communicated with a chemical barrel, chemicals are arranged in each chemical barrel, and the two chemicals are different in type; wherein one dosing pump is communicated with the water pump water inlet pipe through a dosing pump chemical conveying pipe, one end of the water pump water inlet pipe is communicated with the swimming pool, and the other end of the water pump water inlet pipe is communicated with the water inlet pump; the other dosing pump is communicated with a sand cylinder water inlet pipe through the other dosing pump delivery pipe, one end of the sand cylinder water inlet pipe is communicated with the water inlet pump, and the other end of the sand cylinder water inlet pipe is communicated with one end of the sand cylinder; and the other end of the sand cylinder is communicated with the swimming pool through a sand cylinder water outlet pipe. Due to the structural design, a filter aid layer similar to a diatomite filter aid can be formed in the sand tank, so that the filtering effect of the sand tank is greatly improved, the turbidity of effluent is further reduced, the reliability of the treatment effect of the circulating water treatment system of the swimming pool is improved, and meanwhile, the filtering cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment equipment, in particular to a sand tank filter aid device. Background Art

[0002] In the prior art, the water circulation treatment system of the swimming pool usually adopts sand tank filtration. Since the water quality of the swimming pool is low turbidity water, the sand tank filtration is not ideal for removing turbidity, especially for colloids and microorganisms. In order to improve the filtration effect, the prior art often adopts diatomaceous earth filter aids or adds flocculants. However, the cost of diatomaceous earth filter aids is high, the effect of adding flocculants is not obvious, the operation is difficult, and the number of backwashing of the filter tank is increased. Therefore, the prior art cannot effectively reduce the turbidity of the swimming pool, and can only remove organic matter and bacteria in the water by chlorination disinfection. Excessive chlorination will lead to a high concentration of irritating chlorine in the swimming pool, affecting the swimmer's sensory perception.

[0003] Therefore, how to improve the filtering effect of the sand cylinder and reduce the filtering cost has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the present invention provides a sand cylinder filter aid device, the purpose of which is to reduce the filtering cost and improve the filtering effect of the sand cylinder.

[0005] To achieve the above technical objectives, the present invention provides a sand tank filter aid device, comprising two dosing pumps, each of which is connected to a medicine barrel, each of which is provided with medicine, and the two medicines are of different types;

[0006] Wherein, one of the dosing pumps is connected to a water pump inlet pipe through a dosing pump drug delivery pipe, one end of the water pump inlet pipe is connected to the swimming pool, and the other end is connected to the water inlet pump;

[0007] Another of the dosing pumps is connected to the sand tank water inlet pipe through another dosing pump drug delivery pipe, one end of the sand tank water inlet pipe is connected to the water inlet pump, and the other end is connected to one end of the sand tank;

[0008] The other end of the sand tank is communicated with the swimming pool through a sand tank water outlet pipe.

[0009] Preferably, the two agents form a filter aid layer when mixed in the sand tank.

[0010] Preferably, it also includes a PLC controller and an online turbidity meter, the PLC controller is connected to the online turbidity meter via a control cable, the online turbidity meter is arranged on the sand cylinder water outlet pipe, and the PLC controller is used to control the start and stop of the two dosing pumps according to the detection results of the online turbidity meter.

[0011] Preferably, one end of the water inlet pipe of the water pump is connected to the bottom of the swimming pool, and one end of the water outlet pipe of the sand tank is connected to the top of the swimming pool.

[0012] Beneficial effects of the present invention:

[0013] Due to the above structural design, the present invention can form a filter aid layer similar to diatomaceous earth filter aid in the sand tank, greatly improving the filtering effect of the sand tank, further reducing the turbidity of the outlet water, improving the reliability of the treatment effect of the swimming pool circulating water treatment system, and reducing the filter aid filtration cost.

[0014] Furthermore, since organic matter and bacteria in swimming pool water are effectively removed, the amount of chlorine used for disinfection is significantly reduced, and the derivatives produced by chlorine disinfection are greatly reduced, thereby reducing or even eliminating irritating chlorine gas, improving the swimmer's sensory perception and physical health. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0016] In the figure: 1 swimming pool, 2 water inlet pump, 3 sand cylinder, 4 filter aid layer, 5 quartz sand, 6 dosing pump, 7 medicine barrel, 8 aluminum salt, 9 silicate, 10 PLC controller, 11 online turbidity meter, 12 water pump inlet pipe, 13 sand cylinder inlet pipe, 14 sand cylinder outlet pipe, 15 dosing pump drug delivery pipe, 16 control cable. DETAILED DESCRIPTION

[0017] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0018] Example:

[0019] like Figure 1 As shown, a specific embodiment of the sand cylinder filter aid device of the present invention includes two dosing pumps 6, each dosing pump 6 is connected to a medicine barrel 7, each medicine barrel 7 is provided with a medicine, and the two medicines are aluminum salt 8 and silicate 9 respectively.

[0020] Among them, a dosing pump 6 is connected to a water pump inlet pipe 12 through a dosing pump drug delivery pipe 15. One end of the water pump inlet pipe 12 is connected to the swimming pool 1, and the other end is connected to the water inlet pump 2.

[0021] Another dosing pump 6 is connected to the sand cylinder water inlet pipe 13 through another dosing pump drug delivery pipe 15. One end of the sand cylinder water inlet pipe 13 is connected to the water inlet pump 2, and the other end is connected to one end of the sand cylinder 3.

[0022] The other end of the sand tank 3 is communicated with the swimming pool 1 through a sand tank water outlet pipe 14 .

[0023] When the two reagents are mixed in the sand cylinder 3, a filter aid layer is formed.

[0024] Specifically, each dosing pump 6 is correspondingly arranged on a medicine barrel 7, and the aluminum salt 8 is installed in one of the medicine barrels 7. One of the dosing pumps 6 adds the aluminum salt 8 to the water pump water inlet pipe 12 through a dosing pump drug delivery tube 15; the silicate 9 is installed in another medicine barrel 7, and the other dosing pump 6 adds the silicate 9 to the sand cylinder water inlet pipe 13 through another dosing pump drug delivery tube 15, thereby forming a dense filter aid layer 4 on the upper part of the quartz sand 5 in the sand cylinder 3, thereby improving the filtering effect of the sand cylinder 3.

[0025] The PLC controller 10 controls the start and stop of the two dosing pumps 6. The online turbidity meter 11 is installed on the sand tank outlet pipe 14. The detection data of the online turbidity meter 11 is transmitted to the PLC controller 10 by the control cable 16. When the circulating water pump 2 inputs the water of the swimming pool 1 into the sand tank 3 for filtration, the PLC controller 9 adjusts the operation of the two dosing pumps 6 according to the turbidity of the sand tank outlet pipe 14 to ensure the filtering effect of the filter aid layer 4.

[0026] More specifically, when aluminum salt 8 is added into water, a micro-flocculation reaction will occur to form fine particles, and when silicate 9 is dissolved in water, a "wall-adhering" effect will occur, which will adsorb the fine particles produced by micro-flocculation onto the surface of the filter material, thereby forming a dense filter-aiding layer in the sand cylinder 3.

[0027] This filter aid layer mainly contains silicon, aluminum and other elements. It is a filter aid layer formed by the molecular layer of silicon, aluminum, H2O and other elements adsorbed by the filter material as a carrier. Due to the close contact between the molecular layers, it is similar to the filtration by adding diatomaceous earth filter aid, which greatly improves the filtration effect of the sand tank 3.

[0028] Since elements such as silicon and aluminum will be lost during the filtration process, reducing the filtration effect of the filter-aid layer, it is necessary to intermittently add aluminum salt 8 and silicate 9 during the filtration process. Therefore, the PLC controller 10 adjusts the start and stop of the two dosing pumps 6 according to the detection results of the online turbidity meter 11 to ensure the filtration effect of the filter-aid layer.

[0029] Furthermore, one end of the water pump inlet pipe 12 is connected to the bottom of the swimming pool 1 , and one end of the sand tank outlet pipe 14 is connected to the top of the swimming pool 1 .

[0030] The main innovation of the present invention is that by adding two agents, aluminum salt 8 and silicate 9, a filter aid layer similar to diatomaceous earth filter aid can be formed in the sand tank 3, which greatly improves the filtering effect of the sand tank 3 and further reduces the turbidity of the effluent.

[0031] Working principle of the present invention:

[0032] When the water inlet pump 2 is turned on to input the water from the swimming pool 1 into the sand tank 3 for circulation filtration, the PLC controller 10 turns on the two dosing pumps 6, the aluminum salt 8 is put into the circulating water pump inlet pipe 12, and the silicate 9 is put into the sand tank inlet pipe 13, and the turbidity of the water outlet from the sand tank outlet pipe 14 is detected by the online turbidity meter 11.

[0033] When the turbidity of the outlet water reaches the set index, the PLC controller 10 connected to the online turbidity meter 11 will automatically stop the operation of the dosing pump 6.

[0034] When the turbidity of the outlet water is higher than the set index, the PLC controller 10 will automatically start the operation of the dosing pump 6. Thus, the automatic operation is repeated to ensure the filtering effect of the sand cylinder 3.

[0035] In summary, the advancement of the present invention is:

[0036] 1. The present invention can form a filter aid layer similar to diatomaceous earth filter aid in the sand tank by adding two agents, aluminum salt and silicate, which greatly improves the filtering effect of the sand tank, further reduces the turbidity of the effluent, and improves the reliability of the treatment effect of the circulating water treatment system in the swimming pool.

[0037] 2. The present invention does not use chlorine disinfection, and can effectively remove organic matter and bacteria in swimming pool water, greatly reducing the derivatives produced by chlorine disinfection, thereby reducing or even eliminating irritating chlorine gas, and improving swimmers' sensory perception and physical health.

[0038] 3. The present invention is completely integrated with the circulating water treatment system of the swimming pool, and has the advantages of simple structure, convenient inspection and maintenance, convenient operation, low construction cost and operating cost, etc.

[0039] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. The sand filter aid device includes two dosing pumps, characterized in that: Each of the dosing pumps is connected to a medicine barrel, each of the medicine barrels is provided with medicine, and the types of the two medicines are different; Wherein, one of the dosing pumps is connected to a water pump inlet pipe through a dosing pump drug delivery pipe, one end of the water pump inlet pipe is connected to the swimming pool, and the other end is connected to the water inlet pump; Another of the dosing pumps is connected to the sand tank water inlet pipe through another dosing pump drug delivery pipe, one end of the sand tank water inlet pipe is connected to the water inlet pump, and the other end is connected to one end of the sand tank; The other end of the sand tank is communicated with the swimming pool through a sand tank water outlet pipe.

2. The sand filter aid device according to claim 1, characterized in that: The two agents form a filter-aiding layer when mixed in the sand tank.

3. The sand filter aid device according to claim 1 or 2, characterized in that: It also includes a PLC controller and an online turbidity meter; the PLC controller is connected to the online turbidity meter through a control cable; the online turbidity meter is arranged on the water outlet pipe of the sand cylinder; the PLC controller is used to control the start and stop of the two dosing pumps according to the detection results of the online turbidity meter.

4. The sand filter aid device according to claim 3, characterized in that: One end of the water inlet pipe of the water pump is communicated with the bottom of the swimming pool, and one end of the water outlet pipe of the sand tank is communicated with the top of the swimming pool.

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