CN217604800U - Pipeline cleaning and detecting assembly of high-pressure economizer - Google Patents

Abstract

The utility model discloses a pipeline cleaning and detecting assembly of a high-pressure economizer, which comprises a water inlet three-way pipe connected with a water inlet of the economizer and a water outlet three-way pipe connected with a water outlet of the economizer, wherein the water inlet three-way pipe is provided with a first water inlet interface, a second water inlet interface and a first reversing valve for switching the first water inlet interface and the second water inlet interface, and the water outlet three-way pipe is provided with a first water outlet interface, a second water outlet interface and a second reversing valve for switching the first water outlet interface and the second water outlet interface; the device also comprises a cleaning water inlet pipe, a cleaning water drain pipe, a cleaning agent storage box, a water suction pump arranged on the cleaning water inlet pipe, a water inlet pressure measuring device and a water drainage pressure measuring device.

Description

Pipeline cleaning and detecting assembly of high-pressure economizer

Technical Field

The utility model relates to a pipeline cleaning and detecting subassembly of high pressure economizer.

Background

The economizer is a device which is arranged at the lower part of a flue at the tail part of a boiler and used for recovering the waste heat of exhausted smoke, heats the water fed by the boiler into a heating surface of saturated water under the pressure of a steam drum, and reduces the exhaust temperature of the smoke, saves energy and improves the efficiency because the economizer absorbs the heat of high-temperature smoke.

After the economizer is used for a long time, a large amount of sediments are generated on the inner wall of the water pipeline inside the economizer, and the following influences are generated due to excessive sediments:

1. directly hampering the heat transfer of the pipe wall or causing the generation of scale, overheating and damaging the metal of the furnace pipe, and shortening the service life of the boiler;

2. the corrosion under the sediment is promoted to occur in the running process of the boiler, so that the furnace tube becomes thin and is perforated to cause tube explosion;

3. fragments and sediments are formed in the furnace water, so that the furnace tube is blocked or normal steam and water flow is damaged;

4. the water quality indexes of the boiler water, such as silicon content, iron content and the like, are unqualified for a long time, the starting time of a plurality of groups is prolonged, after a machine set is put into operation, solid matters are brought into the boiler along with feed water, so that some insoluble substances are deposited, if the insoluble substances are not removed in time, the deposit can be accumulated in the boiler, the heat efficiency of filtration is influenced, on the other hand, the safe operation of the boiler is also caused, and even a large area of pipe explosion of the boiler is caused in serious cases.

From this need regularly wash the pipeline in the economizer, avoid above-mentioned potential safety hazard, present cleaning methods is through chemical cleaning, consequently, need establish temporarily and wash the subassembly, be about to the inlet tube and the drain pipe of economizer detach with original boiler subassembly respectively, then install interim inlet tube additional, drain pipe and washing case, it is connected economizer and boiler subassembly again to detach the back with interim washing subassembly after the washing is accomplished, greatly increased work load, the efficiency is reduced, in addition the economizer washs except needing in the use, still need detect its seepage phenomenon, present washing subassembly does not possess the function that detects the seepage, need additionally carry out seepage detection, consequently, technical staff in the field need not develop one set can conveniently carry out seepage detection's subassembly when wasing, also need do further promotion in efficiency simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a pipeline cleaning determine module of high-pressure economizer, be used for specially wasing the economizer and can carry out the seepage simultaneously and detect, improved efficiency simultaneously greatly.

In order to realize the technical effect, the utility model adopts the technical scheme that: a pipeline cleaning detection assembly of a high-pressure economizer comprises a water inlet three-way pipe connected with a water inlet of the economizer and a water outlet three-way pipe connected with a water outlet of the economizer, wherein the water inlet three-way pipe is provided with a first water inlet connector, a second water inlet connector and a first reversing valve for switching the first water inlet connector and the second water inlet connector, and the water outlet three-way pipe is provided with a first water outlet connector, a second water outlet connector and a second reversing valve for switching the first water outlet connector and the second water outlet connector;

still include one end with the second is intake interface and is dismantled washing inlet tube, one end of connecting and the second drainage interface is dismantled the washing drain pipe of connecting mutually, with wash the cleaner storage box that the other end of inlet tube is linked together, set up in wash the suction pump on the inlet tube, set up in wash the pressure measurement device of intaking that is used for measuring pressure of intaking on the inlet tube, set up in wash the last drainage pressure measurement device that is used for measuring pressure of draining of drain pipe.

The water inlet pressure measuring device and the water discharge pressure measuring device are both water pressure meters in a further improvement mode.

The improved structure is characterized in that the second water inlet port is provided with a first connecting flange fixedly connected with, the second water inlet port is provided with a second connecting flange fixedly connected with one end of the water inlet pipe, the first connecting flange is fixedly connected with the second connecting flange through a first fastener, the second water outlet port is provided with a third connecting flange fixedly connected with, the fourth connecting flange fixedly connected with one end of the water outlet pipe is cleaned, and the third connecting flange is fixedly connected with the fourth connecting flange through a second fastener.

The other end of the cleaning drain pipe is communicated with the cleaning agent storage box.

The improved cleaning device is characterized in that the cleaning drain pipe is communicated with the cleaning agent storage box through a filter box, a filter layer is arranged in the filter box, the cleaning drain pipe is communicated with the filter box, the communication position of the cleaning drain pipe and the filter box is located on one side of the filter layer, and the communication position of the cleaning agent storage box and the filter box is located on the other side of the filter layer.

The further improvement is that the filter box is a sand filtering cylinder.

The further improvement is that the filter layer includes set up in the supporting network in the filter sand jar, lay in the grit filter layer on the supporting network.

The further improvement is that the filtering sand cylinder comprises a sand cylinder body and a sand cylinder cover body matched with the sand cylinder body, and the sand cylinder cover body is detachably connected with the sand cylinder body.

The utility model has the advantages and beneficial effects that: at first reform transform original economizer and set original inlet tube and drain pipe into the three-way pipe, and set up the diverter valve, when wasing from this, need not to demolish being connected of economizer and boiler subassembly, only need operate the diverter valve can, pressure measurement device has been added in washing the subassembly simultaneously, when wasing, through detecting inlet pressure and drainage pressure, thereby detect the seepage of economizer, only need demolish this subassembly from the economizer after the washing is accomplished, can put into production immediately after homing the switching-over valve, and the efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of the present invention (embodiment one);

FIG. 2 is a schematic view of the present invention (example II);

FIG. 3 is a schematic view of an economizer;

FIG. 4 is a schematic view of a water inlet tee;

FIG. 5 is a schematic connection diagram of the water inlet tee pipe and the first switching valve;

fig. 6 is a schematic view of the filtering sand tank.

Wherein: 1. a water inlet three-way pipe; 2. a three-way drain pipe; 3. a first water inlet interface; 4. a second water inlet interface; 5. a first drain port; 6. a second drain connector; 7. a first direction change valve; 8. a second directional control valve; 9. cleaning a water inlet pipe; 10. cleaning the drain pipe; 11. a cleaning agent storage box; 12. a water pump; 13. a water pressure gauge; 14. filtering a sand cylinder; 15. a sand cylinder cover body; 16. a support net; 17. a gravel filter layer; 18. a first connecting flange; 19. a second connecting flange; 20. a third connecting flange; 21. a fourth connecting flange; 22. an economizer.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

The first embodiment is as follows: as shown in fig. 1, 3-5, a pipe cleaning detection assembly for a high-pressure economizer 22 comprises a water inlet three-way pipe 1 connected to a water inlet of the economizer 22, and a water outlet three-way pipe 2 connected to a water outlet of the economizer 22, wherein the water inlet three-way pipe 1 is provided with a first water inlet interface 3, a second water inlet interface 4, and a first reversing valve 7 for switching the first water inlet interface 3 and the second water inlet interface 4, and the water outlet three-way pipe 2 is provided with a first water outlet interface 5, a second water outlet interface 6, and a second reversing valve 8 for switching the first water outlet interface 5 and the second water outlet interface 6;

still include one end with the second intake interface 4 is dismantled washing inlet tube 9, one end of connecting mutually and wash drain pipe 10 that the second drainage interface 6 is dismantled mutually, with wash the cleaner storage box 11 that the other end of inlet tube 9 is linked together, set up in wash suction pump 12 on the inlet tube 9, set up in wash the pressure measurement device of intaking that is used for measuring pressure of intaking on the inlet tube 9, set up in wash the drain pressure measurement device that is used for measuring pressure of draining on the drain pipe 10.

In this embodiment, the preferable implementation manner is that the inflow pressure measurement device and the drainage pressure measurement device are both water pressure meters 13, and the specific models and specifications of the water pressure meters 13 and the reversing valves need to be selected by referring to the specific sizes of the economizers 22, and since the water pressure meters 13 and the reversing valves are purchased parts, only the basic functions of the water pressure meters 13 and the reversing valves are used in the technical scheme, so that the water pressure meters 13 and the reversing valves which can measure the water pressure in the market can be adopted in the scheme, and the specific structures of the water pressure meters can not be described herein again.

In order to conveniently detach the cleaning detection assembly from the economizer 22 after cleaning, a first connecting flange 18 is fixedly connected to the second water inlet port 4, a second connecting flange 19 is fixedly connected to one end of the cleaning water inlet pipe 9, the first connecting flange 18 and the second connecting flange 19 are fixedly connected through a first fastener, a third connecting flange 20 is fixedly connected to the second water outlet port 6, a fourth connecting flange 21 is fixedly connected to one end of the cleaning water outlet pipe 10, the third connecting flange 20 and the fourth connecting flange 21 are fixedly connected through a second fastener, and fastening bolts are usually adopted for the first fastener and the second fastener.

The second embodiment: as shown in fig. 2 and fig. 6, the difference from the first embodiment is that: in order to reduce the waste of chemical agents during cleaning and reduce environmental pollution, the other end of the cleaning drain pipe 10 is communicated with the cleaning agent storage tank 11, so that the discharged cleaning agent can be returned to the cleaning agent storage tank 11 for secondary use.

Impurity in the cleaner for reducing recycle causes the influence to the pipeline in the economizer 22, wash drain pipe 10 with be linked together through the rose box between the cleaner storage box 11, be provided with the filter layer in the rose box, wash drain pipe 10 with the intercommunication department of rose box is located one side of filter layer, cleaner storage box 11 with the intercommunication department of rose box is located the opposite side of filter layer, consequently recycle's cleaner need pass through the rose box and filter the back and get into cleaner storage box 11 again, and usually, the rose box is for filtering sand jar 14, the filter layer including set up in support network 16 in the filtering sand jar 14, lay in grit filter layer 17 on the support network 16, in getting into cleaner 11 after filtering sand jar 17 in 14 from the cleaner that washs drain pipe 10 exhaust filters, in addition for the convenience clear up the filterable impurity in filtering sand jar 14, filtering sand jar 14 include the sand jar body, with sand jar body matched with the connection is dismantled to sand jar body, and the impurity of clearing up the sand jar 15 surface impurity of grit filter layer 17 after a period can.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The pipeline cleaning detection assembly of the high-pressure economizer is characterized by comprising a water inlet three-way pipe connected with a water inlet of the economizer and a water outlet three-way pipe connected with a water outlet of the economizer, wherein the water inlet three-way pipe is provided with a first water inlet connector, a second water inlet connector and a first reversing valve for switching the first water inlet connector and the second water inlet connector, and the water outlet three-way pipe is provided with a first water outlet connector, a second water outlet connector and a second reversing valve for switching the first water outlet connector and the second water outlet connector;

still include one end with the second is intake interface and is dismantled washing inlet tube, one end of connecting and with the second drainage interface is dismantled the washing drain pipe of connecting mutually, with wash the cleaner storage box that the other end of inlet tube is linked together, set up in wash the suction pump on the inlet tube, set up in wash the pressure measurement device of intaking that is used for measuring pressure of intaking on the inlet tube, set up in wash the last drainage pressure measurement device that is used for measuring pressure of draining of drain pipe.

2. The pipe cleaning detection assembly of a high-pressure economizer according to claim 1, wherein the water inlet pressure measurement device and the water discharge pressure measurement device are both water pressure gauges.

3. The pipeline cleaning detection assembly for the high-pressure economizer according to claim 1, wherein a first connecting flange is fixedly connected to the second water inlet port, a second connecting flange is fixedly connected to one end of the cleaning water inlet pipe, the first connecting flange is fixedly connected to the second connecting flange through a first fastener, a third connecting flange is fixedly connected to the second water discharge port, a fourth connecting flange is fixedly connected to one end of the cleaning water discharge pipe, and the third connecting flange is fixedly connected to the fourth connecting flange through a second fastener.

4. The pipe cleaning detection assembly of a high pressure economizer of claim 1, wherein the other end of the cleaning drain pipe is communicated with the cleaning agent storage tank.

5. The pipeline cleaning detection assembly for the high-pressure economizer according to claim 4, wherein the cleaning drain pipe is communicated with the cleaning agent storage tank through a filter tank, a filter layer is arranged in the filter tank, the communication position of the cleaning drain pipe and the filter tank is positioned on one side of the filter layer, and the communication position of the cleaning agent storage tank and the filter tank is positioned on the other side of the filter layer.

6. The pipe cleaning detection assembly for a high-pressure economizer of claim 5, wherein the filter tank is a filtering sand cylinder.

7. The pipe cleaning detection assembly for a high-pressure economizer of claim 6, wherein the filter layer comprises a support net arranged in the filtering sand cylinder and a gravel filter layer laid on the support net.

8. The pipe cleaning detection assembly for the high-pressure economizer of claim 6, wherein the filtering sand cylinder comprises a sand cylinder body and a sand cylinder cover body matched with the sand cylinder body, and the sand cylinder cover body is detachably connected with the sand cylinder body.

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