CN206738260U - A kind of chemical pump filter device - Google Patents

Abstract

The utility model discloses a filter device for a chemical pump, which comprises an outlet flange, an outlet pipeline, a first filter device and a second filter device, the outlet flange is fixedly connected with the outlet pipeline, and the outlet pipeline is fixed with the outlet tee One port of the outlet tee is screwed to the first filter device, the other port of the outlet tee is screwed to the second filter device, and the other side of the first filter device and the second filter device are connected to the inlet tee Spiral connection, the inlet tee is fixedly connected with the inlet pipeline. The utility model uses two filter pipes to filter first and then recombine to reduce the impact of particles on the filter screen during the liquid flow filtration process, so that the liquid can be filtered smoothly to ensure the completeness of the filter, and each filter There are three filtering devices on the right inside the pipeline to achieve the characteristics of step by step, which can effectively relieve the blockage during the filtering process.

Description

A chemical pump filter device

technical field

The utility model relates to the technical field of chemical filtering equipment, in particular to a chemical pump filtering device.

Background technique

The chemical pump is an energy-saving pump jointly designed by the whole country. The performance and technical requirements of the pump are designed according to the performance and size stipulated in the international standard ISO2858. Its advantages: the layout of the whole series of water conservancy performance is reasonable, and the user has a wide range of choices. "Back open type" Structure, easy maintenance, efficiency and suction reach the international advanced level. When using a chemical pump, the chemical liquid contains a lot of particle components. When these components enter the pump body, they will collide with the high-speed rotating blades, and the blades inside the pump body will be greatly damaged, which will shorten the life of the pump body. How to use it in this chemical industry It is especially important to filter out these particles when the liquid enters the pump body.

Contents of the invention

The purpose of this utility model is to provide a chemical pump filter device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a filter device for chemical pumps, including an outlet flange, an outlet pipeline, a first filter device and a second filter device, the outlet flange is fixedly connected to the outlet pipeline, the The outlet pipe is fixedly connected with the outlet tee, one interface of the outlet tee is screwed to the first filter device, the other interface of the outlet tee is screwed to the second filter device, and the first filter and the second filter The other side of the device is screw-connected with the inlet tee, the inlet tee is fixedly connected with the inlet pipeline, the inlet pipeline is fixedly connected with the inlet flange, and the diameter of the inlet pipeline is larger than that of the outlet pipeline.

Preferably, the first filter device is mainly composed of a second filter pipe and a first filter pipe, and the second filter pipe is connected to the first filter pipe through a union screw.

Preferably, a joint is installed at both ends of the second filter pipe, an internal thread is provided inside the joint, a gasket is installed at the end of the internal thread, and a fixed ear is fixedly provided on one side of the gasket. A pressing block is fixedly arranged on one side of the fixing ear, a third filter is installed on one side of the pressing block, and pipe threads are provided on the outer wall of one side of the second filtering pipe.

Preferably, a joint is installed on both sides of the first filter pipe, a second filter and a first filter are installed on one side of the joint connection pipe, and the internal structure of the joint installed on the first filter pipe is compatible with The internal structure of the union on the second filter pipe is the same.

Preferably, two pipe threads are provided on the outer wall of the outlet tee, and the structure of the inlet tee is the same as that of the outlet tee.

Preferably, the third filtering device mainly includes a connection plate, an outer wire cover, a filter screen and an inner wire cover, the filter screen is located between the outer wire cover and the inner wire cover, and the connection plate is installed on the outer wire cover.

Preferably, the second filter and the first filter have the same structure as the third filter, and the first filter, the second filter and the third filter have different internal filter pore sizes.

Preferably, the second filter device has the same structure as the first filter device.

Compared with the prior art, the beneficial effect of the utility model is: the utility model uses two filter pipes to filter firstly and then recombine to reduce the impact of particles on the filter net during the liquid flow filtration process, so that the liquid can Filtration is performed gently to ensure the completeness of filtration, and each filter pipe is equipped with three filter devices on the right to achieve the characteristics of step-by-step filtration, which can effectively relieve blockage during the filtration process, and the pore size of the three filters is Gradually become smaller, forming a first filter device to filter large particles, the second filter device to filter medium particles, and the third filter device to filter small particles, step by step layered filtration to ensure the filtering effect, by installing a flow meter, The flow can be monitored to determine whether the filter screen has been blocked and needs to be replaced. By connecting the first filter pipe and the second filter pipe with a union screw, it is convenient to disassemble the filter device. The replacement of the filter screen is convenient, and the replacement efficiency is improved. The whole device has a simple structure and is easy to use.

Description of drawings

Fig. 1 is the front structural schematic diagram of a kind of chemical pump filter device of the present utility model;

Fig. 2 is a schematic structural diagram of a second filter pipeline of a chemical pump filter device of the present invention;

Fig. 3 is a structural schematic diagram of the first filter pipeline of a chemical pump filter device of the present invention;

Fig. 4 is a structural schematic diagram of a briquette of a chemical pump filter device of the present invention;

Fig. 5 is a structural schematic diagram of an outlet tee of a chemical pump filter device of the present invention;

Fig. 6 is a structural schematic diagram of a first filter device of a chemical pump filter device of the present invention.

In the figure: 1-outlet flange; 2-outlet pipe; 3-outlet tee; 4-first flow meter; 5-joint; 6-second filter pipe; 7-first filter pipe; 9-inlet pipe; 10-inlet flange; 11-first filter device; 12-second flow meter; 13-second filter device; 14-internal thread; 15-sealing gasket; 16-fixed ear; 17 -press block; 18-third filter; 19-pipe thread; 20-second filter; 21-first filter; 22-connecting plate; 23-outer steel wire cover; 24-filter; 25-inner steel wire cover.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-6, an embodiment provided by the utility model: a chemical pump filter device, including an outlet flange 1, an outlet pipe 2, a first filter device 11 and a second filter device 13, the outlet flange 1 It is fixedly connected with the outlet pipeline 2, the outlet pipeline 2 is fixedly connected with the outlet tee 3, one interface of the outlet tee 3 is screw connected with the first filter device 11, and the other interface of the outlet tee 3 is screw connected with the second filter device 13, the first The other side of the filtering device 11 and the second filtering device 13 are screwed with the inlet tee 8, the inlet tee 8 is fixedly connected with the inlet pipe 9, the inlet pipe 9 is fixedly connected with the inlet flange 10, and the diameter of the inlet pipe 9 is larger than that of the outlet pipe 2 Large, the first filter device 11 is mainly composed of the second filter pipe 6 and the first filter pipe 7, the second filter pipe 6 and the first filter pipe 7 are screwed through the joint 5, and the two ends of the second filter pipe 6 are equipped with live Connect 5, the inside of the union 5 is provided with an internal thread (14), the tail of the internal thread (14) is equipped with a gasket 15, one side of the gasket 15 is fixedly provided with a fixed ear 16, and one side of the fixed ear 16 is fixedly provided with a pressure Block 17, a third filter 18 is installed on one side of the briquetting block 17, pipe thread 19 is provided on the outer wall of the second filter pipe 6 one side, and a joint 5 is installed on both sides of the first filter pipe 7, and a joint 5 is connected to the pipeline The second filter 20 and the first filter 21 are installed on the side, the internal structure of the joint 5 installed on the first filter pipe 7 is the same as that of the joint 5 on the second filter pipe 6, and the outer wall of the outlet tee 3 is provided with Two pipe threads 19, the inlet tee 8 has the same structure as the outlet tee 3, the third filter 18 mainly includes a connecting plate 22, an outer steel wire cover 23, a filter screen 24 and an inner steel wire cover 25, and the filter screen 24 is located in the outer steel wire cover 23 and the inner wire cover 25, the connecting plate 22 is installed on the outer wire cover 25, the second filter 20 and the first filter 21 have the same structure as the third filter 18, the first filter 21, the second filter 20 Different from the pore size of the filter screen 24 inside the third filter 18 , the second filter device 13 has the same structure as the first filter device 11 .

Specific use method: In the work of this utility model, the outlet flange 1 is connected with the chemical pump, and the inlet flange 10 is connected with the liquid pipeline. When the chemical pump starts, the liquid enters the inlet flange 10 from the pipeline and then passes through the inlet pipeline. 9 The inlet tee 8 is divided into two paths to reduce the flow velocity and pressure of the water flow, so as to reduce the impact of the liquid on the first filter device 11 and the second filter device 13. The liquid first passes through the first filter 21 to filter out large Particles, then pass through the second filter 20 to filter out medium-sized particles, and finally pass through the third filter 18 to filter small particles, and then collect them together through the outlet tee, so as not to have an impact on the flow design of the entire system, pass through the third filter 18 The first flow meter 4 and the second flow meter 12 observe the flow rate to judge whether the filter screen 24 needs to be replaced.

Replacement of the filter screen: when the flow rate is small, the filter screen 24 needs to be replaced. When replacing, first turn off the chemical pump, and after a period of time, turn the joint to remove the first filter device 11 and the second filter device 13. Then divide into the second filter pipe 6 and the first filter pipe 7, first take off the sealing gasket 15, then rotate the briquetting block 17 so that the groove on the briquetting block 17 is aligned with the fixed ear 16, so that the briquetting block 17 can be taken out , then take out the first filter, the second filter and the third filter, then remove the inner steel wire cover 25 in the filter, take off the filter screen 24 and replace it with a new filter screen 25, and install The method of putting on the first filter device 11 and the second filter device 13 is similar to removing them.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. a kind of chemical pump filter device, including outlet(discharge) flange（1）, outlet conduit（2）, the first filter（11）With the second mistake Filter device（13）, it is characterised in that：The outlet(discharge) flange（1）With outlet conduit（2）It is fixedly connected, the outlet conduit（2）With Export threeway（3）It is fixedly connected, the outlet threeway（3）One interface and the first filter（11）Spiral connect, it is described go out Mouth threeway（3）Another filter of interface second（13）Spiral connects, first filter（11）With the second filtering dress Put（13）Opposite side and import threeway（8）Spiral connects, the import threeway（8）With inlet pipeline（9）Be fixedly connected, it is described enter Mouth pipeline（9）With suction flange（10）It is fixedly connected, the inlet pipeline（9）Diameter compares outlet conduit（2）Greatly.

A kind of 2. chemical pump filter device according to claim 1, it is characterised in that：First filter（11）It is main Will be by the second filter pipe（6）With the first filter pipe（7）Composition, second filter pipe（6）With the first filter pipe（7） Pass through loose joint（5）Spiral connects.

A kind of 3. chemical pump filter device according to claim 2, it is characterised in that：Second filter pipe（6）Two End is provided with loose joint（5）, the loose joint（5）Inside is provided with internal thread（14）, the internal thread（14）Afterbody is provided with sealing gasket （15）, the sealing gasket（15）Side is fixedly installed fixed ear（16）, the fixed ear（16）Side is fixedly installed briquetting （17）, the briquetting（17）Side the 3rd filter is installed（18）, second filter pipe（6）Side outer wall is provided with pipe Screw thread（19）.

A kind of 4. chemical pump filter device according to claim 1, it is characterised in that：First filter pipe（7）Two Side is provided with loose joint（5）, the loose joint（5）Connecting pipe side is provided with the second filter（20）And first filter（21）, First filter pipe（7）The loose joint of upper installation（5）Internal structure and the second filter pipe（6）Upper loose joint（5）Internal structure It is identical.

A kind of 5. chemical pump filter device according to claim 3, it is characterised in that：The outlet threeway（3）On outer wall Provided with two pipe screw threads（19）, the import threeway（8）With exporting threeway（3）Structure is identical.

A kind of 6. chemical pump filter device according to claim 3, it is characterised in that：3rd filter（18）Mainly Including connecting plate（22）, outer steel wire cover（23）, screen pack（24）With interior steel wire cover（25）, the screen pack（24）Positioned at outer steel wire Cover（23）With interior steel wire cover（25）Between, the connecting plate（22）Installed in outer steel wire cover（25）On.

A kind of 7. chemical pump filter device according to claim 3, it is characterised in that：Second filter（20）With One filter（21）With the 3rd filter（18）Structure is identical, the first filter（21）, the second filter（20）With the 3rd Filter（18）Self-filtering net（24）Pore size is different.

A kind of 8. chemical pump filter device according to claim 1, it is characterised in that：Second filter（13）With First filter（11）Structure is identical.