CN219355450U - Automatic back flush filtration system - Google Patents

Abstract

The utility model relates to an automatic back flush filtering system which comprises a raw material inlet pipe, a raw material outlet pipe, a plurality of back flush filters connected in parallel between the raw material inlet pipe and the raw material outlet pipe, and a heat tracing pipeline, wherein the heat tracing pipeline is arranged to follow and attach the raw material inlet pipe, the raw material outlet pipe and the back flush filters, and is used for tracing the raw material inlet pipe, the raw material outlet pipe and the back flush filters. The heat tracing pipe is arranged, so that the temperature of the medium in the raw material inlet pipe, the raw material outlet pipe and the backwashing filter can be well maintained during flowing, the problem that the flowing medium is too low in temperature or too high in temperature due to the stable influence of the external environment is prevented, and the use stability and the flushing effect of the whole filtering system are improved.

Description

Automatic back flush filtration system

Technical Field

The utility model relates to the technical field of filters, in particular to an automatic back flushing filter system.

Background

The automatic back flushing filter is an advanced, efficient and easy-to-operate full-automatic filter device and is widely used in the fields of metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electric power and urban water supply. Such as raw oil, industrial wastewater and circulating water filtration in petroleum refining, emulsion regeneration, waste oil and wastewater filtration treatment, continuous casting water systems and blast furnace water systems in metallurgical industry, and high-pressure water descaling systems for hot rolling. The working principle is that water enters the filter from the inlet, mechanical impurities are filtered by the filter element assembly of the filter, and clear water is discharged from the water outlet. During the filtration process, impurities on the filter element are gradually accumulated, and a pressure difference is formed between the inner side and the outer side of the filter element. When the pressure difference reaches a preset value, the filters are automatically cleaned one by means of the external backflushing medium according to a set program, the cleaned waste liquid is discharged through a blow-off valve, the filters continue to filter, and the next flushing period is prepared.

When the existing tubular back flush filtering system is used, the existing tubular back flush filtering system is easily affected by the temperature of the external environment, and the problem of poor raw material fluidity is easily caused, so that the back flush effect and the pollution discharge effect are further reduced, and the filter cannot normally operate.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides an automatic back flushing filtering system.

The technical scheme adopted by the utility model is as follows: an automatic back flush filtration system comprises a raw material inlet pipe, a raw material outlet pipe, a plurality of back flush filters connected in parallel between the raw material inlet pipe and the raw material outlet pipe, and a heat tracing pipeline, wherein the heat tracing pipeline is arranged in a way of following and attaching the raw material inlet pipe, the raw material outlet pipe and the back flush filters, and is used for tracing the raw material inlet pipe, the raw material outlet pipe and the back flush filters.

Further, the heat tracing pipeline is provided with a heat tracing inlet and a heat tracing outlet.

Further, a raw material inlet is arranged at one end of the raw material inlet pipe, a back flushing sewage outlet is arranged at the other end of the raw material inlet pipe, a raw material outlet is arranged at one end of the raw material outlet pipe, and an external flushing medium inlet is arranged at the other end of the raw material outlet pipe.

Furthermore, a normal open type control valve is arranged on the raw material inlet pipe at one end of the raw material inlet, the raw material outlet pipe at one end of the raw material outlet and the connecting section of the back flushing filter and the raw material inlet pipe, and a normal close type control valve is arranged on the raw material inlet pipe at one end of the back flushing drain outlet and the raw material outlet pipe at one end of the external flushing medium inlet.

Further, a differential pressure detecting instrument is arranged between the raw material inlet pipe and the raw material outlet pipe which are positioned at one ends of the raw material outlet and the raw material inlet.

Further, an auxiliary fluid inlet is further connected to the raw material inlet pipe, and a normally closed control valve is connected between the auxiliary fluid inlet and the raw material inlet pipe.

Furthermore, the raw material inlet pipe and the raw material outlet pipe are multiple, and a plurality of backwashing filters are arranged between each set of raw material inlet pipe and each set of raw material outlet pipe.

The beneficial effects of the utility model are as follows: the heat tracing pipe is arranged, so that the temperature of the medium in the raw material inlet pipe, the raw material outlet pipe and the backwashing filter can be well maintained during flowing, the problem that the flowing medium is too low in temperature or too high in temperature due to the stable influence of the external environment is prevented, and the use stability and the flushing effect of the whole filtering system are improved.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages.

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

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural diagram of the multiple sets of the present utility model after being combined.

In fig. 1-2: 1. feeding raw materials into a pipe; 2. a raw material outlet pipe; 3. backwashing the filter; 4. a heat trace pipe; 5. a heat tracing inlet; 6. a heat tracing outlet; 7. a raw material inlet; 8. back flushing the sewage outlet; 9. a raw material outlet; 10. an external flushing medium inlet; 11. a normally open control valve; 12. a normally closed control valve; 13. a differential pressure detection instrument; 14. an auxiliary fluid inlet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

The utility model provides an automatic back flushing filtering system.

In this embodiment, referring to fig. 1-2, the automatic backwash filter system comprises a raw material inlet pipe 1, a raw material outlet pipe 2, a plurality of backwash filters 3 connected in parallel between the raw material inlet pipe and the raw material outlet pipe, and a heat tracing pipe 4 following and attaching the raw material inlet pipe, the raw material outlet pipe and the backwash filter arrangement for tracing the raw material inlet pipe, the raw material outlet pipe and the backwash filter arrangement.

According to the technical scheme, the heat tracing pipe is arranged, so that the temperature of the medium in the raw material inlet pipe, the raw material outlet pipe and the backwashing filter can be well maintained during flowing, the flowing medium is prevented from being influenced by the stability of the external environment, the problem that the temperature is too low or too high is solved, and the use stability and the flushing effect of the whole filtering system are improved.

Specifically, the heat tracing pipeline is provided with a heat tracing inlet 5 and a heat tracing outlet 6, the heat tracing inlet and the heat tracing outlet are used for inlet and outlet of a heat tracing medium, and if necessary, valves for control can be arranged on the heat tracing inlet and the heat tracing outlet. The raw material inlet pipe is provided with a raw material inlet 7 at one end, a back flushing sewage outlet 8 at the other end, a raw material outlet 9 at one end and an external flushing medium inlet 10 at the other end. A normally open control valve 11 is arranged on a raw material inlet pipe at one end of the raw material inlet, a raw material outlet pipe at one end of the raw material outlet and a connecting section of the back flushing filter connected with the raw material inlet pipe, and a normally closed control valve 12 is arranged on the raw material inlet pipe at one end of the back flushing drain outlet and the raw material outlet pipe at one end of the outer flushing medium inlet; a differential pressure detecting instrument 13 is arranged between the raw material inlet pipe and the raw material outlet pipe which are positioned at one ends of the raw material outlet and the raw material inlet.

According to the technical scheme, each normally-open control valve is in an open state under a normal filtering state of the system, each normally-closed control valve is in a closed state, when the pressure difference detection instrument detects that the set pressure difference value is reached, the system starts a back flushing function according to a preset program, and each valve is switched according to a program of pre-nailing.

Specifically, the raw material inlet pipe is also connected with an auxiliary fluid inlet 14, and a normally closed control valve is connected between the auxiliary fluid inlet and the raw material inlet pipe.

By providing an auxiliary fluid inlet for the introduction of an auxiliary medium. In the back flushing stage, when the impurities in the back flushing filter are more, the back flushing filter is more viscous, and can be diluted by an auxiliary medium, so that the back flushing and sewage discharging efficiency is improved.

Specifically, the raw material inlet pipe and the raw material outlet pipe are multiple, and a plurality of backwashing filters are arranged between each set of raw material inlet pipe and each set of raw material outlet pipe.

As shown in fig. 2, the system can be connected in parallel with a plurality of sets, so that the working efficiency is improved.

The skilled person will know: while the utility model has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the utility model, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.

Claims (7)

1. An automatic back flush filtration system, includes raw materials advance pipe, raw materials exit tube and connects in parallel a plurality of back flush filters between raw materials advance pipe and raw materials exit tube, its characterized in that: the heat tracing pipeline is used for tracing the raw material inlet pipe, the raw material outlet pipe and the back flush filter arrangement.

2. The automatic backwash filter system according to claim 1 wherein: and the heat tracing pipeline is provided with a heat tracing inlet and a heat tracing outlet.

3. The automatic backwash filter system according to claim 1 wherein: the raw material inlet pipe is provided with a raw material inlet at one end, a back flushing sewage outlet at the other end, a raw material outlet at one end and an external flushing medium inlet at the other end.

4. The automatic backwash filter system according to claim 3 wherein: the device is characterized in that a raw material inlet pipe at one end of the raw material inlet, a raw material outlet pipe at one end of the raw material outlet and a connecting section of the back flushing filter connected with the raw material inlet pipe are respectively provided with a normally open control valve, and a raw material inlet pipe at one end of the back flushing drain outlet and a raw material outlet pipe at one end of the outer flushing medium inlet are respectively provided with a normally closed control valve.

5. The automatic backwash filter system according to claim 3 wherein: a differential pressure detecting instrument is arranged between the raw material inlet pipe and the raw material outlet pipe which are positioned at one ends of the raw material outlet and the raw material inlet.

6. The automatic backwash filter system of claim 4, wherein: the raw material inlet pipe is also connected with an auxiliary fluid inlet, and a normally closed control valve is connected between the auxiliary fluid inlet and the raw material inlet pipe.

7. The automatic backwash filter system according to claim 1 wherein: the raw material inlet pipe and the raw material outlet pipe are provided with a plurality of sets, and a plurality of backwashing filters are arranged between each set of raw material inlet pipe and each set of raw material outlet pipe.