CN215336275U - Boiler soot blowing steam source device - Google Patents
Boiler soot blowing steam source device Download PDFInfo
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- CN215336275U CN215336275U CN202120310990.4U CN202120310990U CN215336275U CN 215336275 U CN215336275 U CN 215336275U CN 202120310990 U CN202120310990 U CN 202120310990U CN 215336275 U CN215336275 U CN 215336275U
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- 239000004071 soot Substances 0.000 title claims abstract description 47
- 238000007664 blowing Methods 0.000 title claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims description 40
- 230000001276 controlling effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a boiler soot blowing steam source device, which comprises: the first steam source branch, the second steam source branch and the output steam source branch are connected with the first steam source branch; the steam inlet of the first steam source branch is connected with the inlet of the low-temperature reheater, the steam inlet of the second steam source branch is connected with the inlet of the high-temperature reheater, the steam outlets of the first steam source branch and the second steam source branch are connected with the steam inlet of the output steam source branch, and the gas outlet of the output steam source branch is connected with the soot blower; the first steam source branch and the second steam source branch are connected with the inlet of the low-temperature reheater and the inlet of the high-temperature reheater respectively to supply the steam source, and simultaneously intersect with the output steam source branch, so that the effect of controlling the temperature and the pressure output by the steam source is realized by controlling the output proportion of the first steam source branch and the second steam source branch.
Description
Technical Field
The utility model relates to the field of soot blowing devices, in particular to a boiler soot blowing steam source device.
Background
A large amount of dust generated during combustion of a boiler in a thermal power plant is adhered to parts such as a heating surface of a boiler body and a heat storage element of an air preheater, and due to the fact that the heat conductivity coefficient of the dust is low, radiation heating, heat conduction heating and convection heating of the parts are affected, and therefore soot blowing needs to be carried out regularly during operation of the boiler.
The device in the boiler range of the supercritical and above units of the power plant generally uses a steam soot blower to perform soot blowing, and the heating surface of a boiler body and an air preheater have different temperature environments and different required steam superheat degrees, wherein the required steam superheat degree of the soot blowing of the heating surface of the boiler body and the air preheater is not less than 80 ℃, the requirement of the air preheater on the superheat degree of the soot blowing steam considering the comprehensive temperature factor of a cold end is not less than 150 ℃, in order to ensure that the requirements of the soot blowing steam can be met simultaneously and enough superheater allowance is reserved, a design unit usually selects a high-parameter steam source such as shielding or high re-inlet when selecting the soot blowing steam source, and synchronously designs a temperature reduction water system with a desuperheater device to meet the quality control requirement of the soot blowing steam.
In the prior art, a boiler soot blowing steam source is generally taken from inlet steam (parameter 4.85Mpa/504 ℃) of a high-temperature reheater, a pressure reducing valve and a desuperheater are arranged on a main pipe of the soot blowing steam source, desuperheater is arranged on a middle tap of a water supply pump to reduce temperature (parameter 16Mpa/250 ℃) for the desuperheater, and the inlet steam of the high-temperature reheater is subjected to temperature and pressure reduction to 2.8 Mpa/350-; however, this system has the following problems: the problems of uneven and uparching expansion of the pipeline, cracking of the lower part of the inner wall of the pipeline, tensile cracking of a welding line of the pipeline and the like frequently occur after the ash blowing desuperheater is blown, and great personal safety and equipment potential safety hazards are generated.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a boiler soot blowing steam source device, wherein a first steam source branch and a second steam source branch are respectively connected with an inlet of a low-temperature reheater and an inlet of a high-temperature reheater to realize the supply of a steam source, meanwhile, the first steam source branch and the second steam source branch are converged on an output steam source branch, and the effect of controlling the temperature and the pressure output by the steam source is realized by controlling the output proportion of the first steam source branch and the second steam source branch.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a boiler soot blowing steam source device, which comprises: the first steam source branch, the second steam source branch and the output steam source branch are connected with the first steam source branch;
the steam inlet of the first steam source branch is connected with the inlet of the low-temperature reheater, the steam inlet of the second steam source branch is connected with the inlet of the high-temperature reheater, the steam outlet of the first steam source branch and the steam outlet of the second steam source branch are connected with the steam inlet of the output steam source branch, and the gas outlet of the output steam source branch is connected with the soot blower.
Preferably, the steam generator further comprises a control circuit, an output end of the control circuit is connected with the first steam source branch and the second steam source branch, and an input end of the control circuit is connected with the output steam source branch.
Preferably, the first steam source branch comprises: first manual gate valve, first electric gate valve, first pressure regulating valve, the one end and the low temperature reheater access connection of first manual gate valve, the other end and the one end of first electric gate valve of first manual gate valve are connected, and the other end and the one end of first pressure regulating valve of first electric gate valve are connected, and the other end and the output steam source branch road of first pressure regulating valve are connected.
Preferably, the first steam source branch further comprises: one end of the check valve is connected with the first pressure regulating valve, and the other end of the check valve is connected with the output steam source branch.
Preferably, the second steam source branch comprises: the high-temperature reheater comprises a second manual gate valve, a second electric gate valve and a second pressure regulating valve, wherein one end of the second manual gate valve is connected with an inlet of the high-temperature reheater, the other end of the second manual gate valve is connected with one end of the second electric gate valve, the other end of the second electric gate valve is connected with one end of the second pressure regulating valve, and the other end of the second pressure regulating valve is connected with an output steam source branch.
Preferably, the steam outlet branch comprises: the system comprises a steam supply main pipe, a detection unit and a display unit;
the detection unit is used for detecting the temperature and the pressure input by the first steam source branch and the second steam source branch;
the display unit is used for controlling the output of the output steam source branch;
the input that supplies the female pipe of vapour is connected with first vapour source branch road and second vapour source branch road, supplies the output and the soot blower of the female pipe of vapour to be connected, and the air current direction that supplies the female pipe of vapour flows to the output that supplies the female pipe of vapour by the input that supplies the female pipe of vapour, and detecting element and display element locate in proper order on supplying the female pipe of vapour along the air current direction that supplies the female pipe of vapour.
Preferably, the detection unit includes: a safety valve, a temperature measuring point and a pressure transmitter;
the safety valve, the temperature measuring point and the pressure transmitter are sequentially arranged on the steam supply main pipe along the air flow direction of the steam supply main pipe.
Preferably, the display unit includes: a stop valve, an instrument valve, a pressure switch and a pressure gauge;
one end of the stop valve is connected with a steam supply main pipe, the other end of the stop valve is connected with one end of the instrument valve, and the other end of the instrument valve is connected with the pressure switch and the pressure gauge.
Preferably, one end of the pressure switch is connected with the instrument valve, and the other end of the pressure switch is connected with the soot blower.
Preferably, the meter valve is a needle type shut-off valve.
Preferably, the shut-off valve is a manual shut-off valve.
The utility model has the beneficial effects that:
the utility model provides a boiler soot-blowing steam source device, wherein a first steam source branch and a second steam source branch are respectively connected with a low-temperature reheater inlet and a high-temperature reheater inlet, a steam source is steam from a boiler reheater system, the low-temperature reheater inlet and the high-temperature reheater inlet are respectively a front part and a rear part of a reheater, so that the first steam source branch and the second steam source branch acquire the steam source from the reheater, the first steam source branch and the second steam source branch are intersected at an output steam source branch, the steam source is output from an output end of the output steam source branch to a soot blower, the soot is blown into a boiler flue gas side by the soot blower to perform soot blowing, the temperature, the pressure and the like of the output steam source of the steam source output branch are controlled by controlling the output proportion of the first steam source branch and the second steam source branch, the steam demand is realized by temperature and pressure self-regulation of the reheater system, a desuperheating water pump tap water system is not required, the problem of pipeline thermal stress stretch cracking leakage caused by frequent investment of desuperheating water is solved, the reliability of a soot blowing steam source system is greatly improved, and potential safety hazards are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure provided in the present embodiment;
FIG. 2 is a schematic diagram of a first steam source branch structure provided in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second steam source branch according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an output source branch structure provided in an embodiment of the present invention;
fig. 5 is a schematic diagram of an overall circuit structure provided in an embodiment of the present invention.
The attached drawings are as follows: 1 a first steam source branch; 11 a first manual gate valve; 12 a first electric gate valve; 13 a first pressure regulating valve; 14 a check valve; 2 a second steam source branch; 21 a second manual gate valve; 22 a second electric gate valve; 23 a second pressure regulating valve; 3, outputting a steam source branch; 31 a steam supply main pipe; 32 a detection unit; a safety valve 321; 322 temperature measuring point; 323 a pressure transmitter; 33 a display unit; 331 a stop valve; 332 instrument valve; 333 pressure switch; 334 pressure gauge; 4, a soot blower; 5 a low temperature reheater inlet; 6 inlet of high temperature reheater; 7 a control circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 5, the present embodiment provides a boiler soot blowing steam source device, including: the system comprises a first steam source branch 1, a second steam source branch 2 and an output steam source branch 3; the steam inlet of the first steam source branch 1 is connected with the low-temperature reheater inlet 5, the steam inlet of the second steam source branch 2 is connected with the high-temperature reheater inlet 6, the steam outlets of the first steam source branch 1 and the second steam source branch 2 are connected with the steam inlet of the output steam source branch 3, and the gas outlet of the output steam source branch 3 is connected with the soot blower 4. Specifically, a first steam source branch 1 and a second steam source branch 2 are respectively connected with a low-temperature reheater inlet 5 and a high-temperature reheater inlet 6, the steam source is steam from a boiler reheater system, the low-temperature reheater inlet 5 and the high-temperature reheater inlet 6 are respectively a front part and a rear part of a reheater, so that the first steam source branch 1 and the second steam source branch 2 acquire the steam source from the reheater, the first steam source branch 1 and the second steam source branch 2 intersect with an output steam source branch 3, the output end of the output steam source branch 3 outputs the steam source to a soot blower 4, the side of the boiler flue gas is blown by the soot blower 4, and soot blowing and cleaning of the boiler are achieved.
Preferably, the first steam source branch 1 comprises: first manual gate valve 11, first electric gate valve 12, first pressure regulating valve 13, the one end and the low temperature reheater import 5 of first manual gate valve 11 are connected, and the other end and the one end of first electric gate valve 12 of first manual gate valve 11 are connected, and the other end and the one end of first pressure regulating valve 13 of first electric gate valve 12 are connected, and the other end and the output steam source branch road 3 of first pressure regulating valve 13 are connected. Furthermore, first manual gate valve 11 and first electric gate valve 12 are all as the steam source switch that control low temperature reheater import 5 flowed into, what set up two gate valves makes the pipeline control have multiple insurability, first pressure regulating valve 13 is the output that is used for controlling to flow into to output steam source branch road 3 steam by first steam source branch road 1, can control the pressure temperature wait state of output steam through first pressure regulating valve 13, first pressure regulating valve 13 still is connected with control circuit 7 simultaneously, control circuit 7 can be controlled by first pressure regulating valve 13, make the output of first steam source branch road 1 reach controllable purpose.
Preferably, the first steam source branch 1 further includes: and one end of the check valve 14 is connected with the first pressure regulating valve 13, and the other end of the check valve 14 is connected with the output steam source branch 3. Furthermore, the steam temperature of the first steam source branch 1 is lower than that of the second steam source branch 2, and the cost effect is considered, so that the pipeline and the valve material of the first steam source branch 1 and the second steam source branch 2 are different, and the pipeline and the valve of the first steam source branch 1 are designed to be devices with low temperature resistance, so that the check valve 14 is additionally arranged on the output port of the first steam source branch 1, and the purpose of preventing the high-temperature steam of the second steam source branch 2 from entering the first steam source branch 1 to cause the fault of the pipeline or the valve of the first steam source branch 1 is achieved.
Preferably, the second steam source branch 2 comprises: the high-temperature reheater system comprises a second manual gate valve 21, a second electric gate valve 22 and a second pressure regulating valve 23, wherein one end of the second manual gate valve 21 is connected with the high-temperature reheater inlet 6, the other end of the second manual gate valve 21 is connected with one end of the second electric gate valve 22, the other end of the second electric gate valve 22 is connected with one end of the second pressure regulating valve 23, and the other end of the second pressure regulating valve 23 is connected with the output steam source branch 3. Specifically, the second manual gate valve 21, the second electric gate valve 22, and the second pressure regulating valve 23 have similar functions and effects to those of the first manual gate valve 11, the first electric gate valve 12, and the first pressure regulating valve 13 described above.
Preferably, the outlet steam source branch 3 comprises: a steam supply main pipe 31, a detection unit 32 and a display unit 33; the detection unit 32 is used for detecting the temperature and the pressure input by the first steam source branch 1 and the second steam source branch 2; the display unit 33 is used for controlling the output of the output steam source branch 3; the input end of the steam supply main pipe 31 is connected with the first steam source branch 1 and the second steam source branch 2, the output end of the steam supply main pipe 31 is connected with the soot blower 4, the air flow direction of the steam supply main pipe 31 flows from the input end of the steam supply main pipe 31 to the output end of the steam supply main pipe 31, and the detection unit 32 and the display unit 33 are sequentially arranged on the steam supply main pipe 31 along the air flow direction of the steam supply main pipe 31. Further, the detecting unit 32 is used for detecting data information such as temperature and pressure in the steam supply main pipe 31.
Preferably, the detection unit 32 includes: a safety valve 321, a temperature measuring point 322 and a pressure transmitter 323; the safety valve 321, the temperature measuring point 322 and the pressure transmitter 323 are sequentially arranged on the steam supply main pipe 31 along the gas flow direction of the steam supply main pipe 31. Specifically, the safety valve 321 is used for protecting the steam supply main pipe 31, and when the pressure in the steam supply main pipe 31 is too high, the safety valve 321 can perform a pressure cutting function; the temperature measuring point 322 is used for measuring the temperature of the steam in the steam supply main pipe 31 and checking whether the soot blowing requirement is met; pressure transmitter 323 is used for detecting the pressure of the steam in the steam supply main pipe 31, and simultaneously pressure transmitter 323 is still connected with control circuit 7 and sends the steam pressure of the steam supply main pipe 31 collected to control circuit 7, and control circuit 7 receives the information that pressure transmitter 323 collected and carries out the analysis and judgment, whether satisfies the soot blowing requirement, if not then adjusts first pressure regulating valve 13 and second pressure regulating valve 23 for final output reaches the target output state that satisfies the needs.
Preferably, the display unit 33 includes: a stop valve 331, an instrument valve 332, a pressure switch 333 and a pressure gauge 334; one end of the stop valve 331 is connected to the steam supply main pipe 31, the other end of the stop valve 331 is connected to one end of the meter valve 332, and the other end of the meter valve 332 is connected to the pressure switch 333 and the pressure gauge 334. The display unit 33 displays the pressure value in the steam supply main pipe 31 through the pressure gauge 334.
Preferably, one end of the pressure switch 333 is connected to the meter valve 332, and the other end of the pressure switch 333 is connected to the sootblower 4. Specifically, one end of the pressure switch 333 is connected to the meter valve 332 for collecting pressure data, the other end of the pressure switch 333 is connected to the soot blower 4, and when the pressure is lower than a set pressure, the pressure switch 333 is operated to stop the operation of the soot blower 4, so as to protect the soot blower 4.
Preferably, the meter valve 332 is a needle type shut-off valve 331.
Preferably, the shut-off valve 331 is a manual shut-off valve 331. Specifically, the stop valve 331 and the meter valve 332 are used for controlling the steam in the steam supply main pipe 31 to flow into the pressure switch 333 or the pressure gauge 334, and the two control switches are arranged for multiple protection and preventing the steam from leaking.
Preferably, the steam generator further comprises a control circuit 7, an output end of the control circuit 7 is connected with the first steam source branch 1 and the second steam source branch 2, and an input end of the control circuit is connected with the output steam source branch 3. Specifically, the control circuit 7 is connected with a first pressure regulating valve 13 of the first steam source branch 1, and the pressure and the temperature of the steam output by the second steam source branch 2 are controlled by controlling the first pressure regulating valve 13; the control circuit 7 is connected with a second pressure regulating valve 23 of the second steam source branch 2, the control of the pressure and the temperature of the steam output by the second steam source branch 2 is realized by controlling the second pressure regulating valve 23, and the control circuit 7 controls the output proportion of the first steam source branch 1 and the second steam source branch 2 by controlling the first pressure regulating valve 13 and the second pressure regulating valve 23, so that the control of the temperature, the pressure and the like of the steam output by the steam source output branch is realized; the control circuit 7 is further connected with the pressure transmitter 323 of the steam source output branch 3, data such as pressure, temperature and the like of a steam source on the steam supply main pipe 31 are collected through the pressure transmitter 323, the data are used for detecting the output state of the steam source output branch 3 to realize collection of feedback data, the output state of the steam source output branch 3 is compared with a target output state, if the output state of the steam source output branch 3 does not accord with the target output state, the first pressure regulating valve 13 and the second pressure regulating valve 23 are further regulated, the final output state meets the required target output state, and the automatic regulation effect is realized.
The utility model has the following advantages in the using process:
1. the steam demand is realized through the temperature and pressure self-adjustment of the reheater system, a temperature reduction water system from a water supply pump middle tap does not need to be designed, the problem of pipeline thermal stress crack leakage caused by frequent investment of temperature reduction water is solved, the reliability of a soot blowing steam source system is greatly improved, and potential safety hazards are reduced.
2. The steam at the inlet 5 of the low-temperature reheater of the boiler is selected as a main steam source for soot blowing, the steam at the inlet 6 of the high-temperature reheater of the boiler is selected as a temperature adjusting bypass, the flow coefficient ratio required by temperature adjustment of the low-temperature reheater and the high-temperature reheater is calculated during design, the specification of a pipeline and a valve is selected according to the coefficient, and the self-adjustment of target parameters (temperature and pressure) is realized through reasonable optimization of control logic.
3. The selected low-temperature reheater inlet 5 steam has low temperature compared with the selected high-temperature reheater inlet 6 steam, belongs to low-quality steam, realizes full utilization of the low-quality steam, and achieves a good energy-saving effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A boiler soot blowing steam source device, comprising: the first steam source branch, the second steam source branch and the output steam source branch are connected with the first steam source branch;
the steam inlet of the first steam source branch is connected with the inlet of the low-temperature reheater, the steam inlet of the second steam source branch is connected with the inlet of the high-temperature reheater, the steam outlet of the first steam source branch is connected with the steam inlet of the output steam source branch, and the gas outlet of the output steam source branch is connected with the soot blower.
2. A boiler sootblower source apparatus as recited in claim 1, wherein: the output end of the control circuit is connected with the first steam source branch and the second steam source branch, and the input end of the control circuit is connected with the output steam source branch.
3. A boiler sootblower source arrangement as recited in claim 1, wherein said first source branch comprises: first manual gate valve, first electric gate valve, first pressure regulating valve, the one end of first manual gate valve with low temperature reheater access connection, the other end of first manual gate valve with the one end of first electric gate valve is connected, the other end of first electric gate valve with the one end of first pressure regulating valve is connected, the other end of first pressure regulating valve with output steam source branch road is connected.
4. A boiler sootblower source arrangement as recited in claim 3, wherein said first source branch further comprises: and one end of the check valve is connected with the first pressure regulating valve, and the other end of the check valve is connected with the output steam source branch.
5. A boiler sootblower source arrangement as recited in claim 1, wherein said second source branch comprises: the high-temperature reheater comprises a second manual gate valve, a second electric gate valve and a second pressure regulating valve, wherein one end of the second manual gate valve is connected with an inlet of the high-temperature reheater, the other end of the second manual gate valve is connected with one end of the second electric gate valve, the other end of the second electric gate valve is connected with one end of the second pressure regulating valve, and the other end of the second pressure regulating valve is connected with an output steam source branch.
6. A boiler sootblowing steam source device as recited in claim 1, wherein said output steam source branch comprises: the system comprises a steam supply main pipe, a detection unit and a display unit;
the detection unit is used for detecting the temperature and the pressure input by the first steam source branch and the second steam source branch;
the display unit is used for controlling the output of the output steam source branch;
the input that supplies the female pipe of vapour with first vapour source branch road with second vapour source branch road is connected, supply the female pipe of vapour the output with the soot blower is connected, supply the female pipe of vapour the air current direction by supply the female pipe of vapour the input end flow extremely supply the female pipe of vapour the output, detecting element with the display element along supply the female pipe of vapour the air current direction locate in proper order supply on the female pipe of vapour.
7. The boiler soot blowing steam source device as claimed in claim 6, wherein said detecting unit comprises: a safety valve, a temperature measuring point and a pressure transmitter;
the safety valve, the temperature measuring point and the pressure transmitter are sequentially arranged on the steam supply main pipe along the airflow direction of the steam supply main pipe.
8. The boiler soot blowing steam source device as claimed in claim 6, wherein said display unit comprises: a stop valve, an instrument valve, a pressure switch and a pressure gauge;
one end of the stop valve is connected with the steam supply main pipe, the other end of the stop valve is connected with one end of the instrument valve, and the other end of the instrument valve is connected with the pressure switch and the pressure gauge.
9. The boiler soot blowing steam source device as claimed in claim 8, wherein one end of said pressure switch is connected to said instrumentation valve and the other end of said pressure switch is connected to said soot blower.
10. The boiler sootblower source device of claim 8, wherein said instrumentation valve is a needle-type shut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310990.4U CN215336275U (en) | 2021-02-03 | 2021-02-03 | Boiler soot blowing steam source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310990.4U CN215336275U (en) | 2021-02-03 | 2021-02-03 | Boiler soot blowing steam source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215336275U true CN215336275U (en) | 2021-12-28 |
Family
ID=79580596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120310990.4U Expired - Fee Related CN215336275U (en) | 2021-02-03 | 2021-02-03 | Boiler soot blowing steam source device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215336275U (en) |
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2021
- 2021-02-03 CN CN202120310990.4U patent/CN215336275U/en not_active Expired - Fee Related
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Granted publication date: 20211228 |