CN218077239U - Improved slurry supply system of semidry reaction tower of thermal power plant - Google Patents
Improved slurry supply system of semidry reaction tower of thermal power plant Download PDFInfo
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- CN218077239U CN218077239U CN202222245177.0U CN202222245177U CN218077239U CN 218077239 U CN218077239 U CN 218077239U CN 202222245177 U CN202222245177 U CN 202222245177U CN 218077239 U CN218077239 U CN 218077239U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The utility model discloses a modified thermal power plant semidry process reaction tower supplies thick liquid system, including thick liquid water pitcher, confession thick liquid pipe assembly and slurry return pipe assembly. The thick liquid jar is through the one end that supplies thick liquid mother pipe intercommunication first governing valve of supplying thick liquid pipe assembly, and the other end of first governing valve passes through the thick liquid mother pipe intercommunication thick liquid jar of the back flow of thick liquid pipe assembly, constitutes the thick liquid return circuit. The plurality of reaction tower units are connected in parallel on the slurry loop through respective slurry supply pipelines and respective slurry return pipelines; the first end of the slurry supply pipeline of each reaction tower unit is communicated with the slurry supply main pipeline, the second end of the slurry supply pipeline is communicated with the three-way pipe fitting, the second end of the three-way pipe fitting is communicated with the slurry return pipeline, and the third end of the slurry supply pipeline is communicated with the atomizer of the reaction tower unit through the slurry inlet pipeline; the end of the pulp supply main pipeline close to the pulp water tank is provided with a pulp pump, and the pulp supply main pipeline, the pulp supply sub pipeline and the pulp inlet pipeline are respectively provided with an adjusting valve or a manual stop valve. The utility model discloses can effectively improve and supply thick liquid stability and supply the wholeness ability of thick liquid system.
Description
Technical Field
The utility model belongs to thermal power plant equipment field especially relates to a modified thermal power plant semidry process reaction tower supplies thick liquid system.
Background
Generally, the waste incineration treatment scale of the thermal power plant is 2000t/d, 3 grate waste incinerators of 750t/d are adopted, and the installed power generation capacity is 2 turbine generator sets of 25 MW. The existing semi-dry method system pulp supply and return mode is as follows: the main slurry inlet pipeline is arranged from a No. 3 furnace to a No. 1 furnace pipeline from high to low, a reaction tower unit corresponding to each furnace is provided with a high-level slurry tank, a slurry supply main pipe is respectively fed with slurry from high to low to the high-level slurry tanks of the No. 3 furnace, the No. 2 furnace and the No. 1 furnace, slurry in each high-level slurry tank is supplied to an atomizer of the reaction tower unit by self weight, and then the slurry overflows from the three high-level slurry tanks to a shared slurry return pipe. The problems of the existing pulp supply and return mode are as follows: 1. the reaction tower unit close to the slurry tank has the highest pressure entering the high-level slurry tank and the largest slurry return amount because of the close distance, so that the slurry inlet amount of the No. 2 furnace and the No. 1 furnace at the far ends is gradually reduced; 2. because one or two furnaces are shut down, the slurry consumption is low and the slurry return capacity is insufficient, so that the phenomenon of slurry overflow is caused in a high-level slurry tank; 3. due to the problem that a slurry supply pipeline is frequently blocked, the slurry supply pipeline needs to be cleaned in time, and then the whole equipment has to be stopped, so that the running stability of system equipment is influenced. Therefore, it is a research direction to design a stable pulp supply system.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of prior art existence, the utility model provides a modified thermal power plant semidry process reaction tower supplies thick liquid system utilizes the thick liquid water return circuit of addding to remove the high-order dressing trough of reaction tower unit, supply thick liquid to change into pressure by no pressure and supply thick liquid, advance thick liquid pressure through each reaction tower unit of governing valve control, improve and supply thick liquid stability and supply the wholeness ability of thick liquid system.
In order to achieve the above object, the present invention provides an improved slurry supply system for a semi-dry reaction tower of a thermal power plant, which comprises a slurry tank, a slurry supply pipe assembly and a slurry return pipe assembly;
the slurry supply pipe assembly comprises a slurry supply main pipeline and a slurry supply sub pipeline; the slurry return pipe assembly comprises a slurry return main pipeline and a slurry return sub pipeline;
the first end of the slurry supply main pipeline is communicated with the slurry tank, the second end of the slurry supply main pipeline is communicated with one end of a first regulating valve, the other end of the first regulating valve is communicated with the first end of the slurry return main pipeline, and the second end of the slurry return main pipeline is communicated with the slurry tank; the slurry tank, the slurry supply main pipeline and the slurry return main pipeline form a slurry loop; a plurality of reaction tower units are connected in parallel on the slurry water loop through the respective slurry supply pipelines and the respective slurry return pipelines; the first end of the slurry supply pipeline of each reaction tower unit is communicated with the slurry supply main pipeline, the second end of the slurry supply pipeline is communicated with the first end of a three-way pipe fitting, the second end of the three-way pipe fitting is communicated with the slurry return pipeline, and the third end of the three-way pipe fitting is communicated with the atomizer of the reaction tower unit through a slurry inlet pipeline;
the end of the near-slurry water tank of the slurry supply main pipeline is provided with a slurry pump, the slurry supply sub pipeline is provided with a second regulating valve, and the slurry return sub pipeline is provided with a first manual stop valve.
Furthermore, a second manual stop valve is respectively arranged at the end of the slurry supply main pipeline close to the first regulating valve and the end of the slurry return main pipeline close to the first regulating valve.
Further, a third regulating valve is arranged on the slurry inlet pipeline.
Further, a main flow meter is arranged on the slurry loop.
Furthermore, a branch flowmeter is arranged at the end of the slurry inlet pipeline close to the tee pipe fitting.
Furthermore, third manual stop valves are respectively arranged on two sides of the third regulating valve.
Further, the number of the reaction tower units is 3.
The utility model has the advantages that:
1. the utility model changes the pulp supply mode of each reaction tower unit, removes the high-level pulp tank, changes the pressure pulp supply from the non-pressure pulp supply into the pressure pulp supply, controls the pulp inlet pressure through the regulating valve, and ensures that the pulp inlet amount of each reaction tower unit is controllable, thereby fundamentally solving the overflow pulp outflow phenomenon of individual high-level pulp tank due to uneven pulp inlet;
2. the utility model is additionally provided with the slurry loop and is matched with each regulating valve, so that each reaction tower unit of the whole system can be maintained according to the self requirement without influencing the whole operation of the system;
3. the utility model discloses a set up total flowmeter and divide the flowmeter can accurately know the thick liquid flow condition of advancing back of whole return circuit and every stove to conveniently adjust and assist the judgement to supplying the thick liquid pipeline jam condition.
Drawings
FIG. 1 is a schematic diagram of a prior art reaction tower unit configuration of an improved thermal power plant semi-dry process reaction tower slurry supply system of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
In the figure:
the system comprises a slurry supply pipe assembly 1, a slurry return pipe assembly 2, a reaction tower unit 3, a slurry pump 4, a tee pipe fitting 8, a slurry supply main pipe 11, a slurry supply sub pipe 12, a slurry return main pipe 21, a slurry return sub pipe 22, a first regulating valve 51, a second regulating valve 52, a third regulating valve 53, a first manual stop valve 61, a second manual stop valve 62, a third manual stop valve 63, a total flow meter 71 and a branch flow meter 72.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the following description is further made with reference to the accompanying drawings and examples.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in attached figure 1, the existing reaction tower unit 3 in the semidry method system for the incineration treatment of waste in a thermal power plant is provided with a high-level slurry tank, a slurry supply main pipe is respectively sent to the high-level slurry tanks of the reaction tower unit 3 of the furnace No. 3, the furnace No. 2 and the furnace No. 1 from high to low, lime slurry in each high-level slurry tank supplies slurry to an atomizer of the reaction tower unit 3 by means of self weight, and then the lime slurry overflows from the three high-level slurry tanks to a shared slurry return main pipe. The reaction tower unit 3 close to the slurry tank has the highest pressure entering the high-level slurry tank and the largest slurry return amount because of the close distance, so that the slurry inlet amount of the No. 2 furnace and the No. 1 furnace at the far ends is gradually reduced; and the slurry consumption is low and the slurry return capacity is insufficient due to the shutdown of one or two furnaces, so that the phenomenon of slurry overflow is caused in a high-level slurry tank; due to the problem that a slurry supply pipeline is frequently blocked, the slurry supply pipeline needs to be cleaned in time, and then the whole equipment has to be stopped, so that the running stability of system equipment is influenced.
As shown in fig. 2, the utility model provides an improved thermal power plant semidry process reaction tower slurry supply system, which comprises a slurry tank, a slurry supply pipe assembly 1 and a slurry return pipe assembly 2.
The slurry supply pipe assembly 1 comprises a slurry supply main pipeline 11 and a slurry supply sub pipeline 12; the slurry return pipe component 2 comprises a slurry return main pipeline 21 and a slurry return sub pipeline 22; the first end of the slurry supply main pipeline 11 is communicated with the slurry tank, the second end of the slurry supply main pipeline 11 is communicated with one end of a first regulating valve 51, the other end of the first regulating valve 51 is communicated with the first end of the slurry return main pipeline 21, and the second end of the slurry return main pipeline 21 is communicated with the slurry tank; the slurry tank, the slurry supply main pipeline 11 and the slurry return main pipeline 21 form a closed-loop slurry water loop.
And 3 reaction tower units 3 in total, which comprise a No. 1 furnace reaction tower unit, a No. 2 furnace reaction tower unit and a No. 3 furnace reaction tower unit, wherein the 3 reaction tower units are respectively connected in parallel on the slurry loop through respective slurry supply pipelines 12 and respective slurry return pipelines 22. Each reaction tower unit 3 comprises at least a reaction tower and a rotary atomization tower.
The first end of the slurry supply pipeline 12 of each reaction tower unit 3 is communicated with the slurry supply main pipeline 11, the second end of the slurry supply pipeline 12 is communicated with the first end of the tee pipe fitting 8, the second end of the tee pipe fitting 8 is communicated with the slurry return pipeline 22, and the third end of the tee pipe fitting 8 is communicated with the atomizer of the reaction tower unit 3 through the slurry inlet pipeline. In a new slurry supply system, an independent slurry loop is additionally arranged, a plurality of reaction tower units 3 are connected in parallel to the slurry loop through respective slurry supply pipelines 12 and respective slurry return pipelines 22, and the parallel structure is matched with the control of each regulating valve, so that each reaction tower unit 3 of the whole system can respectively form a complete loop with a slurry tank, and the system can operate independently, and even if the maintenance condition of the loop of each reaction tower unit 3 is closed, the loops of other reaction tower units 3 can also operate normally, and the overall operation of the system is not influenced.
The end, close to the grout tank, of the grout supply main pipeline 11 is provided with the grout pump 4, the grout pump 4 provides grout inlet power, and the end, close to the first adjusting valve 51, of the grout supply main pipeline 11 and the end, close to the first adjusting valve 51, of the grout return main pipeline 21 are respectively provided with a second manual stop valve 62. The second regulating valve 52 is arranged on the slurry supply pipeline 12, the third regulating valve 53 is arranged on the slurry inlet pipeline provided with the first manual stop valve 61 on the slurry return pipeline 22, the third manual stop valves 63 are respectively arranged on two sides of the third regulating valve 53, and the slurry inlet pressure is controlled through the regulating valves.
Further, a total flow meter 71 is arranged on the slurry loop and used for analyzing the condition of the whole slurry supply amount and the slurry return amount. The end of the slurry inlet pipeline of each reaction tower unit, which is close to the tee pipe fitting 8, is provided with a branch flow meter 72 for analyzing the slurry supply quantity of the atomizer of each furnace. Therefore, the flow conditions of slurry feeding and returning of the whole loop and each furnace can be accurately known, and the blockage condition of the slurry supply pipeline can be conveniently adjusted and judged.
When the system is actually used, a slurry tank starts to supply slurry, the total slurry supply amount is 25 cubes, a slurry pump 4 close to the end of the slurry tank of a slurry supply main pipeline 11 is started to provide slurry inlet power, lime slurry flows out in 4 paths, 3 paths of the lime slurry respectively enter slurry supply sub pipelines 12 of a No. 1 furnace reaction tower unit, a No. 2 furnace reaction tower unit and a No. 3 furnace reaction tower unit through the slurry supply main pipeline 11 and respectively flow into an atomizer of the reaction tower unit 3 through one end of 3 three-way pipe fittings 8 for use, the slurry inlet demand of each reaction tower unit 3 is within 5 cubes, and the redundant flow is converged into a slurry return main pipeline 21 through a slurry return sub pipeline 22 connected with the other end; the 4 th stone mortar flows into the main slurry return pipe 21 from the main slurry supply pipe 11 through the first regulating valve 51, and the 4 th stone mortar in the main slurry return pipe 21 is finally returned to the slurry tank.
During this period, the slurry inlet pressure is controlled by each regulating valve, the first regulating valve 51 is used for regulating the slurry flow on the slurry loop, the second regulating valve 52 is used for regulating the slurry flow on each slurry supply pipeline 12, the third regulating valve 53 is used for regulating the slurry inlet flow of each reaction tower unit 3, and the first manual stop valve 61, the second manual stop valve 62 and the third manual stop valve 63 can be matched to control the slurry flow while being used for convenient maintenance of the system.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, the concrete connection mode of each part
The conventional means such as bolts, rivets, welding and the like which are mature in the prior art are adopted, the machines, parts and equipment adopt the conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein, and the contents which are not described in detail in the specification belong to the prior art which is well known to a person skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The present invention and its embodiments have been described above, but the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (7)
1. An improved slurry supply system of a semidry reaction tower of a thermal power plant is characterized by comprising a slurry tank, a slurry supply pipe assembly and a slurry return pipe assembly;
the slurry supply pipe assembly comprises a slurry supply main pipeline and a slurry supply sub pipeline; the slurry return pipe assembly comprises a slurry return main pipeline and a slurry return sub pipeline;
the first end of the slurry supply main pipeline is communicated with the slurry tank, the second end of the slurry supply main pipeline is communicated with one end of a first regulating valve, the other end of the first regulating valve is communicated with the first end of the slurry return main pipeline, and the second end of the slurry return main pipeline is communicated with the slurry tank; the slurry tank, the slurry supply main pipeline and the slurry return main pipeline form a slurry loop; a plurality of reaction tower units are connected in parallel on the slurry water loop through the respective slurry supply pipelines and the respective slurry return pipelines; the first end of the slurry supply pipeline of each reaction tower unit is communicated with the slurry supply main pipeline, the second end of the slurry supply pipeline is communicated with the first end of a three-way pipe fitting, the second end of the three-way pipe fitting is communicated with the slurry return pipeline, and the third end of the three-way pipe fitting is communicated with the atomizer of the reaction tower unit through a slurry inlet pipeline;
the end of the near-slurry water tank of the slurry supply main pipeline is provided with a slurry pump, the slurry supply sub pipeline is provided with a second regulating valve, and the slurry return sub pipeline is provided with a first manual stop valve.
2. The improved thermal power plant semidry process reaction tower slurry supply system as claimed in claim 1, wherein a second manual stop valve is respectively disposed at an end of the slurry supply main pipe close to the first regulating valve and an end of the slurry return main pipe close to the first regulating valve.
3. The improved thermal power plant semi-dry process reaction tower slurry supply system as claimed in claim 1, wherein the slurry inlet pipeline is provided with a third regulating valve.
4. The improved thermal power plant semidry process reaction tower slurry supply system according to claim 1, wherein a total flow meter is arranged on the slurry water loop.
5. The improved thermal power plant semi-dry process reaction tower slurry supply system as recited in claim 1, wherein a branch flow meter is disposed at the end of the slurry inlet pipeline near the tee pipe.
6. The improved thermal power plant semi-dry process reaction tower slurry supply system according to claim 1, wherein a third manual stop valve is respectively arranged on both sides of the first regulating valve.
7. The improved thermal power plant semidry process reaction tower slurry supply system of claim 1, wherein the number of the reaction tower units is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222245177.0U CN218077239U (en) | 2022-08-25 | 2022-08-25 | Improved slurry supply system of semidry reaction tower of thermal power plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222245177.0U CN218077239U (en) | 2022-08-25 | 2022-08-25 | Improved slurry supply system of semidry reaction tower of thermal power plant |
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| CN218077239U true CN218077239U (en) | 2022-12-20 |
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| CN202222245177.0U Active CN218077239U (en) | 2022-08-25 | 2022-08-25 | Improved slurry supply system of semidry reaction tower of thermal power plant |
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- 2022-08-25 CN CN202222245177.0U patent/CN218077239U/en active Active
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