CN201862311U - Straight-down multi-filter decontamination device - Google Patents

Abstract

The utility model provides a dirt separator is strained more to direct falling formula, include: the device comprises a shell, wherein two supporting plates are arranged in the shell and divide the shell into a water inlet cavity, a clear water collecting cavity and a pollutant accommodating cavity; the at least two filter elements are arranged in a clear water collecting cavity formed between the support plates, and the connecting parts at two ends of each filter element are respectively and fixedly connected with the support plates; the water inlet, the drain outlet and the water outlet are all arranged on the shell, wherein the water inlet is communicated with the water inlet cavity, the drain outlet is communicated with the sewage containing cavity, the water outlet is communicated with the clean water collecting cavity, the water inlet and the drain outlet are respectively arranged at the top and the bottom of the shell and are communicated with each other in the vertical direction through a filter element, and the water outlet is arranged on the side wall of the shell. The utility model provides a dirt separator is strained to direct falling formula more, simple structure, filtering effect are stable, the operation of being convenient for can bear the highly compressed operational environment of high temperature.

Description

Straight-down multi-filter decontamination device

technical field

The utility model relates to a multi-filter decontamination device assembled at the front end of water pump equipment to filter solid particle impurities in water and protect equipment and pipeline fittings, in particular to a multi-filter decontamination device with simple structure, stable filtering effect and low filtering flow rate. Straight-down multi-filter decontamination device.

Background technique

In industrial production, in order to effectively recover the waste heat generated in various production links, various enterprises mainly adopt vaporization cooling instead of raw water cooling, such as the converter vaporization cooling system of the steelmaking process in the iron and steel industry, which uses vaporization cooling flue instead of raw water cooling flue to achieve the purpose of saving electricity and water.

However, the cooling medium in the vaporization cooling system—circulating water, is in a state of high temperature and high pressure. It is often mixed with some solid particle impurities due to construction reasons, which leads to damage to the mechanical seal of the impeller of the circulating water pump and the bearing, resulting in the normal and stable operation of the system.

In addition, during the operation of the heating system, the water in the pipe network will also carry impurities and dirt. In order to prevent the impurities and dirt in the water from blocking the heating pipeline and affecting the safe and economical operation of the heating system, it is necessary to The circulating water is filtered to ensure the normal operation of the heating system.

In this regard, the current common solution is to add a decontamination device at the front end of the circulating water pump to ensure that the solid particle impurities in the circulating water are pre-filtered before the circulating water enters the pump.

For example, Chinese Patent No. "200720151158" discloses a "dual separation sedimentation type decontamination device", which is composed of a tank body, water inlet pipe, water outlet pipe, baffle plate and sewage discharge pipe. The air port, the sewage outlet is set at the bottom, the water inlet pipe and the water outlet pipe are arranged on both sides of the tank body, and the water inlet pipe and the water outlet pipe are located on the same center line. The outlet pipes are separated by a baffle, and there is a gap between the upper end of the baffle and the tank exhaust port; the sewage pipe is arranged in the lower half of the tank, and the sewage outlet at the bottom of the tank is connected by a flange and a blind plate.

In another Chinese patent No. "200820004389.3", a "screw decontamination device" is also disclosed, which is mainly used to remove circulating water pollutants in heating or refrigeration systems. There is a sewage valve at the bottom, a top cover on the top of the shell, water inlets and drains on both sides of the upper end of the shell, an upper support plate and a lower support plate inside the shell, and the upper support plate is fixed on the top cover. Below, the lower support plate is fixedly connected to the lower end of the shell, a sediment chamber is formed between the lower support plate and the sewage discharge, and a single or multiple spiral tubes are arranged between the upper support plate and the lower support plate; the spiral tube is composed of a central axis tube Composed of cylindrical spiral filter mesh; cylindrical spiral filter mesh is a cylindrical three-dimensional multi-layer spiral mesh basket structure welded by metal wire, the inner wall of cylindrical spiral filter mesh is sleeved on the central axis tube and welded in the center shaft outer surface.

Although the above-mentioned known structure has a large filtering working area, it can filter out part of the solid particle impurities from the circulating water, and can be discharged from the lower part of the shell through sedimentation. However, this known structure cannot withstand the high temperature and high pressure environment, which limits its scope of application, and when the flow rate of the circulating water entering the decontamination device is too high, it is easy to cause secondary tumbling under the condition of turbulent water flow, and it is impossible to prevent the filter element from being connected to the outlet. The short flow problem between the water pipes will affect the stability of its filtration effect. Moreover, the known decontamination device is often clogged and the filter element is damaged under pressure, which causes the decontamination device to be unable to use normally, thereby affecting the normal operation of the vaporization cooling system.

In view of the defects of the above-mentioned known technologies, the inventor has developed the direct drop multi-filter decontamination device of the present utility model based on years of experience in production design in this field and related fields.

Utility model content

The utility model provides a direct-drop multi-filter decontamination device, especially a direct-drop multi-filter decontamination device that can overcome the defects of the known technology, has a simple structure, stable filtering effect, is easy to operate, can withstand high temperature and high pressure environments, and has a low filtration flow rate. Multi-filter decontamination device.

For this reason, the utility model proposes a direct drop multi-filter decontamination device, comprising: a housing, and two supporting plates are arranged in the housing, and the supporting plates divide the housing into a water inlet cavity, a clean water collection chamber and dirt receiving chamber; filter elements, at least two, are arranged in the clear water collection chamber formed between the support plates, and the connection parts at both ends of each filter element are respectively fixedly connected with the support plates; water inlet, Both the sewage outlet and the water outlet are arranged on the housing, wherein the water inlet communicates with the water inlet chamber, the sewage outlet communicates with the dirt receiving chamber, and the water outlet communicates with the clean water The collection cavity is connected, and the water inlet and the sewage outlet are respectively arranged on the top and bottom of the housing, and are connected in the vertical direction through the filter element, and the water outlet is arranged on the side wall of the housing superior.

The direct drop multi-filter decontamination device as described above, wherein the outer ring of the filter element is provided with a deflector, the lower end of the deflector is fixedly connected with the lower support plate, and the upper end of the deflector There is a water passing gap between the support plate and the upper part, and the clear water collection chamber is formed between the deflector plate and the housing.

The direct drop multi-filter decontamination device as described above, wherein the height of the deflector is greater than or equal to the distance from the upper edge of the filter body of the filter element to the lower support plate.

The direct drop multi-filter decontamination device as described above, wherein the filter element is in the shape of a cylinder.

The direct-drop multi-filter decontamination device as described above, wherein, the filter body of the filter element is provided with reinforcing ribs.

The direct drop multi-filter decontamination device as described above, wherein, the upper and lower ends of the filter element are plugged and fixed to the support plate respectively.

The direct-drop multi-filter decontamination device as described above, wherein the housing is composed of at least two parts, an upper housing and a lower housing, and connecting flanges are respectively provided at the joints of the upper and lower housings.

The direct-drop multi-filter decontamination device proposed by the utility model, by setting the filter element in the vertical direction, and making the water inlet direction of the decontamination device, the water flow direction in the shell, and the gravity direction of solid particle impurities consistent, the After flowing into the decontamination device, the solid particle impurities have a downward movement speed, and under the combined action of its own inertia, gravity, and water flow, it can be separated from the filter element and will not adhere to the filter element, avoiding the occurrence of The filter element is clogged; without increasing the volume of the decontamination device, multiple cylindrical filter elements are installed in the housing to increase the number of filter holes or gaps, which can effectively increase the filter cross section and greatly reduce solid particle impurities. The filter effect is improved by the pressure of the filter element. In addition, the reinforcing ribs provided on the filter body of the filter element further improve the strength of the filter element.

The direct-drop multi-filter decontamination device proposed by the utility model can store the directly sinking solid particle impurities by setting the dirt receiving chamber at the bottom of the shell, effectively preventing the filtered solid particle impurities from disintegrating under the condition of turbulent water flow. Tumbling for a few times will affect the filtering effect. When the sewage is discharged regularly, the solid particle impurities settled in the sewage chamber will be discharged out of the decontamination device together with the water flow, so as to realize the purification and separation of solid and liquid.

The direct drop multi-filter decontamination device proposed by the utility model adds a deflector in the clear water collection area, which can not only effectively settle the solid particle impurities passing through the filter element, but also prevent short flow between the filter element and the outlet pipe. Problem, in addition, the deflector can effectively reduce the filtration flow rate, so that the filtration flow rate is lower than the settling velocity for filtering out solid particle impurities, so that each filter element can filter effectively and ensure the filtering effect.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the tubular filter element of the present utility model;

Fig. 3 is another schematic structural view of the utility model.

Explanation of reference numbers:

1. Housing 11, water inlet chamber 12, clear water collection chamber 13, dirt receiving chamber

14. Upper housing 15, lower housing 141, 151, connecting flange

16. Accommodating part 21, upper support plate 22, lower support plate 3, filter element

31. Filtration body 32, reinforcement ribs 33, 34 connection part 4, water inlet

5. Sewage outlet 6, water outlet 7, deflector 71, water gap

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings.

Fig. 1 is a structural schematic diagram of the utility model; Fig. 2 is a structural schematic diagram of a cylindrical filter element of the utility model; Fig. 3 is another structural schematic diagram of the utility model.

As shown in Figures 1 and 2, the direct drop multi-filter decontamination device proposed by the utility model includes: a housing 1, two support plates are arranged in the housing 1, and the inside of the housing 1 is The bottom is divided into water inlet chamber 11, clear water collection chamber 12 and dirt receiving chamber 13, that is, water inlet chamber 11 is formed between housing 1 and upper support plate 21, and between upper and lower support plates 21, 22 and housing 1 A clear water collection chamber 12 is formed, and a dirt receiving chamber 13 is formed between the lower support plate 22 and the housing 1 . At least two filter elements 3 are arranged between the upper and lower support plates 21 , 22 , and each filter element 3 includes a filter body 31 and connection parts 33 , 34 arranged at both ends of the filter body 31 . The connection parts 33 and 34 at both ends of the filter element 3 are fixedly connected to the upper and lower support plates 21 and 22 respectively.

The housing 1 is provided with a water inlet 4, a sewage outlet 5 and a water outlet 6, wherein the water inlet 4 communicates with the water inlet chamber 11, and the sewage outlet 5 communicates with the dirt receiving chamber 13 The water outlet 6 communicates with the clear water collection chamber 12 . The water inlet 4 and the sewage outlet 5 are respectively arranged on the top and the bottom of the housing 1, and are connected in the vertical direction through the filter element 3, and the water outlet 6 is arranged on the side of the housing 1 on the wall.

An optional solution is that the water inlet 4 and the sewage outlet 5 are arranged coaxially in the vertical direction, and the center line of the water outlet 6 is perpendicular to the axes of the water inlet 4 and the sewage outlet 5 .

Another optional solution is that the filter element 3 is a cylindrical filter element, and the connection parts 33 and 34 at the upper and lower ends of the filter element are plugged and fixed with the upper and lower support plates 21 and 22 respectively.

In a specific embodiment, in order to improve the impact resistance of the filter element 3 and its service life, the filter body 31 of the filter element 3 is provided with reinforcing ribs 32 . The reinforcing rib 32 can be arranged along the length direction of the filter body, or be arranged on the filter body 31 around hoops, or as shown in FIG. To increase the strength of the filter element.

In order to effectively settle the solid particle impurities that pass through the filter element 3, and prevent short flow between the filter element 3 and the water outlet 6, each filter pore on the filter body 31 of the filter element 3 is effectively filtered, reducing the By the filtering speed of the filter body 31 of the filter element 3, as shown in Figure 3, the outer ring of the filter element 3 can be selected to be provided with a deflector 7, and the lower end of the deflector 7 is fixed with the lower support plate 21 connection, there is a water gap 71 between the upper end of the deflector 7 and the upper support plate 22, and a clean water collection chamber 12 is formed between the outside of the deflector 7 and the housing 1, and the deflector 7 An accommodating portion 16 for filtered water by the filter element 3 is formed between the inside and the filter element 3 , and the filtered and settled clean water flows from the accommodating portion 16 into the clean water collection chamber 12 through the water gap 71 .

Wherein, the height of the deflector 7 should be greater than or equal to the distance from the upper edge of the filter body 31 of the filter element 3 to the lower support plate 22 . That is, the upper end of the deflector 7 is slightly higher than the upper edge of the filter body 31 of the filter element, or close to the upper edge of the filter body 31 of the filter element. Preferably, as long as the upper end of the deflector 7 is slightly higher than the upper edge of the effective filtering part of the filter body 31, it can effectively settle the solid particle impurities that pass through the filter element 3, and prevent the filter element 3 from colliding with the water outlet. The effect of short flow appears between 6.

Further, the housing 1 of the present invention can also be composed of at least upper and lower housings 14, 15, and the joints of the upper and lower housings 14, 15 are respectively provided with connecting flanges 141, 151, so that when serious In the event of a fault, the housing 1 of the decontamination device can be easily opened for overall maintenance of the equipment. The plurality of cylindrical filter elements 3 arranged inside the housing 1 and the upper and lower support plates are installed in a socket-type plug connection, which can also make the maintenance or replacement inside the decontamination device more convenient.

In addition, the direct-drop multi-filter decontamination device of the present invention can also be equipped with accessories such as pressure gauges, differential pressure gauges, and thermometers outside the housing 1 to monitor the operating conditions of the equipment in real time, so as to realize automatic sewage discharge. Systematic design.

The working principle of the utility model is: the high-temperature and high-pressure circulating water carrying solid particle impurities flows into the water inlet chamber 11 formed between the upper support plate 21 and the housing 1 in the decontamination device at a high speed from the water inlet 4 at the top of the decontamination device , the high-temperature, high-pressure circulating water is evenly distributed in the water inlet chamber 11 and flows into a plurality of filter elements 3 arranged between the upper and lower support plates 21, 22, and the water filtered by the filter elements 3 is The filter body 31 flows out to the outside of the filter element 3, and the filtered water is blocked from settling again inside the deflector 7. Meanwhile, the setting of the deflector 7 also reduces the flow rate of the filter body 31 passing through the filter element 3. Filtration speed. The filtered water flows into the water gap formed between the deflector 7 and the upper support plate 21 and is collected in the clean water collection chamber 12 formed between the deflector 7 and the housing 1, and the clean water is delivered by the water outlet 6 to various water facilities. The filtered solid particle impurities directly sink from the interior of the filter element 3 under the action of gravity to settle and store in the dirt receiving chamber 13 formed between the lower support plate 22 and the housing 1 and located at the bottom of the decontamination device. And it can be discharged from the decontamination device through the sewage outlet 5 regularly through the way of sewage discharge and water discharge, so as to realize the purification and separation of solid and liquid.

When filtering circulating water, especially high-temperature and high-pressure circulating water, in order to effectively filter out solid particle impurities in high-temperature and high-pressure circulating water, it is especially important to reduce the filtration flow rate of the decontamination device, because the filtration flow rate determines the solid particle impurities. Through the pressure of the filter element, the higher the filtration flow rate, the greater the pressure, the greater the resistance of the solid particles intercepted by the filter element to peel off the filter element. As time goes by, the effective filtration area will become smaller and the filtration flow rate will become smaller. Large, a vicious circle will eventually lead to the blockage of the filter element itself, and even the phenomenon of pressure damage. The reason is that the initial design filtration flow rate is too high.

Just in order to solve the above problems, the utility model takes the settling velocity of solid particle impurities in circulating water as the basis for designing the filtration flow rate, which greatly reduces the pressure of solid particle impurities passing through the filter element 3, and in addition, the water inlet direction of the decontamination device and the filter The direction of water flow in the casing 1 and the direction of gravity of solid particle impurities are consistent. When the circulating water flows into the decontamination device at the beginning, the solid particle impurities have a downward movement speed, under its own inertia, gravity, and water flow Under the combined effect of the filter element, it can be separated from the filter element and will not adhere to the filter element 3, so as to avoid the occurrence of the above-mentioned vicious circle and ensure the final filtering effect. The solid particle impurities will automatically settle in the bottom cavity of the decontamination device, and will be discharged out of the system along with the water flow when the sewage is regularly discharged.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (7)

1. a kind of straight-down type multi-filter decontamination device, is characterized in that, described direct-drop type multi-filter decontamination device comprises: A housing, the housing is provided with two support plates, which divide the housing into a water inlet chamber, a clean water collection chamber and a dirt holding chamber; At least two filter elements are arranged in the clear water collection chamber formed between the support plates, and the connection parts at both ends of each filter element are respectively fixedly connected to the support plates; The water inlet, the sewage outlet and the water outlet are all arranged on the housing, wherein the water inlet communicates with the water inlet chamber, the sewage outlet communicates with the dirt receiving chamber, and the water outlet communicates with the dirt receiving chamber. The clear water collection chambers are connected, and the water inlet and the sewage outlet are respectively arranged on the top and bottom of the housing, and are connected in the vertical direction through the filter element, and the water outlet is arranged on the housing on the side wall. 2. The direct drop type multi-filter decontamination device as claimed in claim 1, wherein the outer ring of the filter element is provided with a deflector, and the lower end of the deflector is fixedly connected with the support plate of the bottom, There is a water gap between the upper end of the deflector and the upper support plate, and the clear water collection chamber is formed between the deflector and the housing. 3. The direct drop multi-filter decontamination device according to claim 2, wherein the height of the deflector is greater than or equal to the distance from the upper edge of the filter body of the filter element to the lower support plate. 4. The direct drop multi-filter decontamination device according to claim 1, wherein the filter element is cylindrical. 5. The direct drop multi-filter decontamination device according to claim 1, characterized in that, the filter body of the filter element is provided with reinforcing ribs. 6. The direct drop multi-filter decontamination device according to claim 1, characterized in that, the upper and lower ends of the filter element are respectively plugged and fixed with the support plate. 7. The direct-drop multi-filter decontamination device according to any one of claims 1 to 6, wherein the housing is at least composed of upper and lower housings, and the junction of the upper and lower housings Connecting flanges are respectively provided.

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