CN209906705U - Cooling system of online water vapor sampling device of coke dry quenching boiler - Google Patents
Cooling system of online water vapor sampling device of coke dry quenching boiler Download PDFInfo
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- CN209906705U CN209906705U CN201920446579.2U CN201920446579U CN209906705U CN 209906705 U CN209906705 U CN 209906705U CN 201920446579 U CN201920446579 U CN 201920446579U CN 209906705 U CN209906705 U CN 209906705U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 238000005070 sampling Methods 0.000 title claims abstract description 38
- 238000010791 quenching Methods 0.000 title claims abstract description 26
- 230000000171 quenching effect Effects 0.000 title claims abstract description 26
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 239000000571 coke Substances 0.000 title claims abstract description 18
- 239000000498 cooling water Substances 0.000 claims abstract description 66
- 230000003635 deoxygenating effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000006392 deoxygenation reaction Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Coke Industry (AREA)
Abstract
The utility model relates to an online steam sampling device cooling system of dry coke quenching boiler, including demineralized water tank, deoxidization water feed pump, heat pipe exchanger, oxygen-eliminating device and online steam sampling device, establish the cooling water in proper order according to the deoxidization water flow direction on the deoxidization water feed main pipe in deoxidization water feed pump low reaches and draw forth mouthful and the interface is returned to the cooling water, and wherein the cooling water draws forth the cooling water entry that mouthful passes through cooling water feed pipe and connect high temperature high pressure frame cooler, and the cooling water export of high temperature high pressure frame cooler is connected the cooling water through cooling water return water pipe and is returned the interface. The utility model discloses a deoxidization feedwater among the dry quenching boiler water supply system has saved demineralized water force (forcing) pump or demineralized water closed circulation cooling equipment as the cooling water in the online steam sampling device high temperature high pressure frame cooler, has both reduced investment and occupation of land, saves operation and maintenance cost, has guaranteed online steam sampling device's safety and stability operation again.
Description
Technical Field
The utility model relates to an online steam sampling technical field of dry coke quenching boiler especially relates to an online steam sampling device cooling system of dry coke quenching boiler.
Background
The coke dry quenching boiler is an important component in a coke dry quenching process system, can recover about 80 percent of sensible heat of red coke, and the generated steam can be used for production, heat supply and power generation, thereby having obvious energy-saving and environmental-protection benefits. The operation of the coke dry quenching boiler system is realized by a plurality of subsystems together, wherein the deoxygenation water supply system is used for pressurizing the demineralized water in the demineralized water tank through a deoxygenation water supply pump, the pressurized deoxygenation water supply is sent into the heat pipe heat exchanger to exchange heat with the circulating gas of the coke dry quenching system, and the deoxygenation water supply after heat exchange is sent to the deoxygenator to be used as boiler water supply after deoxygenation treatment.
The online water vapor sampling device is used for online monitoring of feed water, boiler water, saturated steam and superheated steam of the boiler so as to ensure the quality of the boiler water and the externally supplied steam. The high-temperature high-pressure rack in the online water vapor sampling device is an important part of the online water vapor sampling device, the main function is to convert high-temperature high-pressure sample water into low-temperature low-pressure sample water, the high-temperature high-pressure rack in the online water vapor sampling device is usually cooled by cooling water, the temperature of the sample water can reach 540 ℃, if industrial circulating cooling water is used for cooling, calcium and magnesium in the sample water can be scaled on the outer wall of a sample water pipe of a high-temperature high-pressure rack cooler under the action of high temperature, the heat exchange efficiency of the cooler is seriously influenced, and therefore desalted water without calcium and magnesium hardness is required to be used for the cooling. Conventional dry coke quenching boiler systems are often equipped with demineralized water pressure pumps or demineralized water closed circulation cooling devices, which increase investment and operating costs.
Disclosure of Invention
The utility model provides an online steam sampling device cooling system of dry quenching boiler adopts the deoxidization feedwater among the dry quenching boiler water supply system as the cooling water in the online steam sampling device high temperature high pressure frame cooler, has saved demineralized water force (forcing) pump or demineralized water closed circulation cooling equipment, has both reduced the investment and has taken up an area of, saves operation and maintenance cost, has guaranteed online steam sampling device's safety and stability operation again.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cooling system of an online water vapor sampling device of a coke dry quenching boiler comprises a demineralized water tank, a deoxidizing water feed pump, a heat pipe heat exchanger, a deaerator and the online water vapor sampling device, wherein the demineralized water tank is connected with the heat pipe heat exchanger through a deoxidizing water feed main pipe; the online water vapor sampling device is internally provided with a high-temperature high-pressure rack and a low-temperature instrument rack, the high-temperature high-pressure rack is internally provided with a high-temperature high-pressure rack cooler, and the low-temperature instrument rack is internally provided with a constant temperature device; a cooling water leading-out opening and a cooling water returning opening are sequentially arranged on a deoxidizing water supply main pipe at the downstream of the deoxidizing water supply pump according to the flow direction of deoxidizing water, wherein the cooling water leading-out opening is connected with a cooling water inlet of a high-temperature and high-pressure rack cooler through a cooling water supply pipeline, a cooling water outlet of the high-temperature and high-pressure rack cooler is connected with the cooling water returning opening through a cooling water returning pipeline, and a cooling water feeding pipeline is connected with the deoxidizing water supply main pipe in an oblique connection mode; and a throttle valve is arranged on a deaerated water supply main pipe between the cooling water lead-out port and the cooling water return port, and the throttle valve is in interlocking control with a pressure gauge arranged on a cooling water supply pipeline at the upper part of the high-temperature high-pressure rack cooler.
The deoxidization feed pump sets up 2 in parallel, and one is worked one and is equipped with.
Compared with the prior art, the beneficial effects of the utility model are that:
the deoxygenation feed water in the feed water system of the dry quenching boiler is used as the cooling water in the high-temperature high-pressure rack cooler of the online water vapor sampling device, a demineralized water pressure pump or a demineralized water closed circulation cooling device is omitted, the investment and the occupied area are reduced, the operation and maintenance cost is saved, and the safe and stable operation of the online water vapor sampling device is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a cooling system of an online water vapor sampling device of a coke dry quenching boiler.
In the figure: 1. demineralized water tank 2, deoxygenation water feed pump 3, high-temperature high-pressure rack 4, heat pipe heat exchanger 5, deoxygenator 6, throttle valve 7, demineralized water 8, deoxygenation water feed 9, cooling water feed 10, cooling water return 11, deoxygenation water feed 12, pressure gauge 13, high-temperature high-pressure rack cooler 14, low-temperature instrument rack 15, constant temperature device 16 and industrial circulating cooling water
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1, the cooling system of the on-line water vapor sampling device of the coke dry quenching boiler of the utility model comprises a demineralized water tank 1, a deoxidizing water feed pump 2, a heat pipe heat exchanger 4, a deaerator 5 and an on-line water vapor sampling device, wherein the demineralized water tank 1 is connected with the heat pipe heat exchanger 4 through a deoxidizing water feed main pipe, the deoxidizing water feed pump 2 is arranged on the deoxidizing water feed main pipe, and the heat pipe heat exchanger 4 is connected with the deaerator 5 through a deoxidizing water feed pipe; the online water vapor sampling device is internally provided with a high-temperature high-pressure frame 3 and a low-temperature instrument frame 14, the high-temperature high-pressure frame 3 is internally provided with a high-temperature high-pressure frame cooler 13, and the low-temperature instrument frame 14 is internally provided with a constant temperature device 15; a cooling water leading-out opening and a cooling water returning opening are sequentially arranged on the deoxidizing water supply main pipe at the downstream of the deoxidizing water supply pump 2 according to the flow direction of deoxidizing water, wherein the cooling water leading-out opening is connected with a cooling water inlet of a high-temperature high-pressure rack cooler 13 through a cooling water supply pipeline, a cooling water outlet of the high-temperature high-pressure rack cooler 13 is connected with the cooling water returning opening through a cooling water returning pipeline, and a cooling water feeding pipeline is connected with the deoxidizing water supply main pipe in an oblique connection mode; a throttle valve 6 is arranged on a deaerated water supply main pipe between the cooling water lead-out port and the cooling water return port, and the throttle valve 6 is controlled in an interlocking manner with a pressure gauge 12 arranged on a cooling water supply pipeline at the upstream of a high-temperature high-pressure rack cooler 13.
The deoxidizing water-feeding pump 2 is provided with 2 pumps which are connected in parallel and are operated one by one.
A dry quenching boiler on-line steam sampling device cooling method adopts the deoxidization feed water 8 in the deoxidization feed water system of the dry quenching boiler as the cooling water of the high-temperature high-pressure rack 3 in the on-line steam sampling device.
As shown in FIG. 1, the operation process of the cooling system of the on-line water vapor sampling device of the coke dry quenching boiler of the utility model is as follows: the desalted water 7 in the desalted water tank 1 is pressurized by a deoxidizing water feeding pump 2 and then is sent to a heat pipe heat exchanger 4 through a deoxidizing water feeding main pipe, and a cooling water feeding pipe with a branch pipe connected with a high-temperature high-pressure rack cooler 13 in an online water vapor sampling device is led out of the deoxidizing water feeding main pipe; the cooling water backwater 10 after passing through the high-temperature high-pressure rack cooler 13 is connected back to the deoxidizing water supply main pipe at the downstream of the leading-out point, and the connection part adopts an oblique connection mode to reduce the resistance of the cooling water backwater 10; a throttle valve 6 is arranged on the deoxidizing water supply main pipe between the leading-out point and the return point, the opening of the throttle valve 6 is adjusted according to the pressure of the cooling water supply 9 inlet of the high-temperature high-pressure rack cooler 13, the flow of the cooling water supply 9 and the pressure behind the throttle valve 6 are controlled, and the flow pressure of the cooling water in the high-temperature high-pressure rack cooler 13 and the smoothness of the cooling water return 10 are ensured; and the deoxygenation feed water 8 in the deoxygenation feed water main pipe at the downstream of the return joint is sent to the heat pipe heat exchanger 4 to exchange heat with the circulating gas of the dry quenching boiler, and the deoxygenation feed water 11 after heat exchange is sent to the deoxygenator 5 to be deoxygenated and then serves as the feed water of the dry quenching boiler.
In the coke dry quenching boiler system, in order to ensure the heat exchange effect of the heat pipe heat exchanger, namely the temperature of circulating gas at the inlet of the coke dry quenching boiler, the temperature of deoxygenation water supply at the inlet of the heat pipe heat exchanger is generally controlled to be not higher than 45 ℃, the temperature can meet the temperature requirement of cooling water for a high-temperature high-pressure rack of an online water vapor sampling device, and the temperature of sample water cooled by the high-temperature high-pressure rack is ensured. The pressure of the deoxygenated water supply is calculated and determined by the model selection of the deoxygenated water supply pump, namely, the pressure of an inlet of a deoxygenator, the resistance of a heat pipe exchanger, the resistance of a high-temperature high-pressure frame of an online water vapor sampling device and the total resistance of a deoxygenated water supply pipe system are determined together, generally about 1MPa, and the pressure also meets the pressure requirement of the cooling water of the high-temperature high-pressure frame of the online water vapor sampling device.
To sum up, the system is a simple economical and practical's online steam sampling device high temperature high pressure frame cooling water system, and the advantage of distinctive deoxidization water supply system among the make full use of dry quenching boiler thermodynamic system of this system uses the deoxidization to supply water as the cooling water source of online steam sampling device high temperature high pressure appearance water, has avoided the problem of cooling water scale deposit, can replace demineralized water force (forcing) pump or demineralized water closed circulation cooling equipment completely. In the operation process of the system, whether the cooling temperature of the sample water meets the standard or not can be confirmed by observing whether the pressure temperature protection system in the online water vapor sampling device acts or not.
The thermostat 15 in the cryometer housing 14 of the online moisture sampling device is cooled with industrial circulating cooling water 16.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (2)
1. A cooling system of an online water vapor sampling device of a coke dry quenching boiler comprises a demineralized water tank, a deoxidizing water feed pump, a heat pipe heat exchanger, a deaerator and the online water vapor sampling device, wherein the demineralized water tank is connected with the heat pipe heat exchanger through a deoxidizing water feed main pipe; the online water vapor sampling device is internally provided with a high-temperature high-pressure rack and a low-temperature instrument rack, the high-temperature high-pressure rack is internally provided with a high-temperature high-pressure rack cooler, and the low-temperature instrument rack is internally provided with a constant temperature device; the device is characterized in that a cooling water leading-out opening and a cooling water returning opening are sequentially arranged on a deoxidizing water supply main pipe at the downstream of a deoxidizing water supply pump according to the flow direction of deoxidizing water, wherein the cooling water leading-out opening is connected with a cooling water inlet of a high-temperature and high-pressure rack cooler through a cooling water supply pipeline, a cooling water outlet of the high-temperature and high-pressure rack cooler is connected with the cooling water returning opening through a cooling water returning pipeline, and a cooling water feeding pipeline is connected with the deoxidizing water supply main pipe in an oblique connection mode; and a throttle valve is arranged on a deaerated water supply main pipe between the cooling water lead-out port and the cooling water return port, and the throttle valve is in interlocking control with a pressure gauge arranged on a cooling water supply pipeline at the upper part of the high-temperature high-pressure rack cooler.
2. The system of claim 1, wherein the deoxygenating feed pump is arranged in parallel for 2 stages, one stage for each stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446579.2U CN209906705U (en) | 2019-04-03 | 2019-04-03 | Cooling system of online water vapor sampling device of coke dry quenching boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446579.2U CN209906705U (en) | 2019-04-03 | 2019-04-03 | Cooling system of online water vapor sampling device of coke dry quenching boiler |
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| Publication Number | Publication Date |
|---|---|
| CN209906705U true CN209906705U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920446579.2U Withdrawn - After Issue CN209906705U (en) | 2019-04-03 | 2019-04-03 | Cooling system of online water vapor sampling device of coke dry quenching boiler |
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| CN (1) | CN209906705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943352A (en) * | 2019-04-03 | 2019-06-28 | 中冶焦耐(大连)工程技术有限公司 | A kind of online vapor sampling device cooling means of coke dry quenching boiler and system |
| CN115141639A (en) * | 2021-03-28 | 2022-10-04 | 上海梅山钢铁股份有限公司 | Sample arrangement device and method for coke dry quenching tank |
-
2019
- 2019-04-03 CN CN201920446579.2U patent/CN209906705U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943352A (en) * | 2019-04-03 | 2019-06-28 | 中冶焦耐(大连)工程技术有限公司 | A kind of online vapor sampling device cooling means of coke dry quenching boiler and system |
| CN109943352B (en) * | 2019-04-03 | 2024-04-26 | 中冶焦耐(大连)工程技术有限公司 | Cooling method and system for online water vapor sampling device of coke dry quenching boiler |
| CN115141639A (en) * | 2021-03-28 | 2022-10-04 | 上海梅山钢铁股份有限公司 | Sample arrangement device and method for coke dry quenching tank |
| CN115141639B (en) * | 2021-03-28 | 2024-06-04 | 上海梅山钢铁股份有限公司 | Sample arranging device and method for coke dry quenching tank |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200107 Effective date of abandoning: 20240426 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200107 Effective date of abandoning: 20240426 |