CN111229333A - Automatic control system and method for condensate polishing mixed bed - Google Patents
Automatic control system and method for condensate polishing mixed bed Download PDFInfo
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- CN111229333A CN111229333A CN202010172151.0A CN202010172151A CN111229333A CN 111229333 A CN111229333 A CN 111229333A CN 202010172151 A CN202010172151 A CN 202010172151A CN 111229333 A CN111229333 A CN 111229333A
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- 238000005498 polishing Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000001257 hydrogen Substances 0.000 claims abstract description 30
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 30
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 21
- 239000011734 sodium Substances 0.000 claims abstract description 21
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 21
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000460 chlorine Substances 0.000 claims abstract description 17
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 17
- 239000010703 silicon Substances 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/80—Automatic regeneration
- B01J49/85—Controlling or regulating devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
An automatic control system and method for a condensate polishing mixed bed relates to the technical field of condensate polishing; the system comprises a mixed bed, a PLC controller, an online conductivity meter, an electric valve, an online hydrogen conductivity meter, an online sodium meter, an online chlorine meter and an online silicon meter, wherein: outlet pipelines of the mixed bed A, the mixed bed B and the mixed bed C are respectively provided with an online conductivity meter and an electrically operated valve, and an online hydrogen conductivity meter, an online sodium meter, an online chlorine meter and an online silicon meter are arranged on a mixed bed main pipe pipeline; when the measured value of any one of the online hydrogen conductivity meter, the online sodium meter, the online chlorine meter and the online silicon meter exceeds the control standard, the PLC closes the electric valve of the mixed bed with the highest effluent conductivity in the two mixed beds according to the measured values of the online conductivity meter at the outlet of the mixed bed A and the online conductivity meter at the outlet of the mixed bed B, and synchronously operates the standby mixed bed C to ensure that the water quality index of the main pipe at the outlet of the mixed bed is controlled within the qualified range, thereby realizing the automatic control of the mixed bed for condensate polishing.
Description
Technical Field
The invention relates to a condensate polishing system of a power plant, in particular to a condensate polishing mixed bed automatic control system and a condensate polishing mixed bed automatic control method.
Background
In the total-volatilization feed water treatment process, in order to reduce the corrosion of thermal equipment and pipelines, ammonia water is usually added into feed water to improve the pH value of water vapor, a fine treatment mixed bed in a condensate fine treatment system comprises a plurality of mixed beds formed by mixing cation resin and anion resin, and the control standard of the condensate of a supercritical and above unit subjected to fine treatment mixed bed desalting is shown in table 1 according to the standard of GB/T12145 steam quality of thermal generator sets and steam power equipment:
TABLE 1 GB/T12145-2016 water quality control Standard after desalting of condensate by a fine treatment mixed bed
The control mode of the mixed bed is divided into hydrogen type operation and ammoniation operation, and the concrete performance is as follows:
the hydrogen type operation refers to the operation of the fine treatment mixed bed in an RH-ROH mode, and the hydrogen type operation can ensure better quality of fine treatment effluent, and is the mainstream operation mode of the current power plant. Because the main cation in the condensed water is NH4 +It is exchanged for H after passing through the hydrogen type mixed bed+And the ammonia water is required to be added into the feed water again to improve the pH value of the water vapor, the ammonia water is recycled repeatedly, the using amount of the ammonia water is increased, the water preparation period of the mixed bed is shortened (about 5-7 days), the mixed bed is regenerated frequently, and the operation cost is high. When the hydrogen type mixed bed fails, the water firstly leaksNH4 +The conductivity of the effluent is obviously increased, so that the increase of the conductivity of the effluent is generally taken as a failure terminal point of the hydrogen mixed bed, and the water production amount and the operation pressure difference according to the cycle of the mixed bed are also taken as the failure terminal points.
Ammoniation operation refers to the fine treatment of mixed bed with RNH4ROH mode operation, the condensed water passing through the ammoniated mixed bed retains NH in the water4 +The ammonia adding amount of the water supply is reduced, the ideal mixed bed water making period of the ammoniation operation can reach more than 30 days, the mixed bed water making period is greatly prolonged, and the operation cost is reduced by times. The ammoniation operation can be divided into a hydrogen type mixed bed stage, a transformation stage and an ammonium type operation stage according to time, when the mixed bed enters the ammonium type operation stage, ions in a resin phase and the content of ions in condensed water reach balance, and once the quality of the condensed water is deteriorated, the thermodynamic equipment is corroded and deposited with salt, so that the ammonium type mixed bed generally takes the conductivity of sodium, chloride ions, silicon dioxide or hydrogen as a failure terminal point, the ammoniation operation of a fine treatment mixed bed has high requirements on the leakage quantity of a condenser, the quality of make-up water, the resin regeneration degree and the operator level, and the number of applied power plants is small.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an automatic control system and method for a condensate polishing mixed bed, which can effectively avoid the economic problem caused by too short water making period of the mixed bed in hydrogen type operation and the safety problem caused by corrosion and salt accumulation of thermodynamic equipment due to ammoniation operation.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an automatic control system for a mixed bed for condensate polishing comprises an online hydrogen conductivity meter 9, an online sodium meter 10, an online chlorine meter 11 and an online silicon meter 1 which are arranged on a pipeline of a mixed bed main pipe 13, an online mixed bed A outlet conductivity meter 2 and a mixed bed A outlet electric valve 5 which are arranged on an outlet pipeline of a mixed bed A, an online mixed bed B outlet conductivity meter 3 and a mixed bed B outlet electric valve 6 which are arranged on an outlet pipeline of a mixed bed B, and an online mixed bed C outlet conductivity meter 4 and a mixed bed C outlet electric valve 7 which are arranged on an outlet pipeline of a mixed bed C; the device also comprises a PLC (programmable logic controller) 8, wherein the PLC 8 is connected with an online hydrogen conductivity meter 9, an online sodium meter 10, an online chlorine meter 11, an online silicon meter 1, an online conductivity meter 2 at an outlet of a mixed bed A, an online conductivity meter 3 at an outlet of a mixed bed B and an online conductivity meter 4 at an outlet of a mixed bed C and receives measurement signals of the meters, and the PLC 8 is connected with an electrically operated valve 5 at an outlet of the mixed bed A, an electrically operated valve 6 at an outlet of the mixed bed B and an electrically operated valve 7 at an outlet of the mixed bed C and controls the opening and closing of the electrically operated valves.
The automatic control method of the automatic control system for the condensate polishing mixed bed adopts the mixed bed A and the mixed bed B to operate, and the mixed bed C to be reserved, or adopts the mixed bed A and the mixed bed C to operate, and the mixed bed B to be reserved, or adopts the mixed bed B and the mixed bed C to operate, and the mixed bed A to be reserved; if the mixed bed A and the mixed bed B run and the mixed bed C is standby, the PLC 8 judges the turn-off and turn-on of the electric valve 5 at the outlet of the mixed bed A and the electric valve 6 at the outlet of the mixed bed B according to the measured values of the online hydrogen conductivity meter 9, the online sodium meter 10, the online chlorine meter 11, the online silicon meter 1, the online conductivity meter 2 at the outlet of the mixed bed A and the online conductivity meter 3 at the outlet of the mixed bed B: when the measured value of any one of the online hydrogen conductivity meter 9, the online sodium meter 10, the online chlorine meter 11 and the online silicon meter 1 on the mixed bed main pipe exceeds the control standard, the PLC 8 closes the electrically operated valve 5 at the outlet of the mixed bed A or the electrically operated valve 6 at the outlet of the mixed bed B corresponding to the electrically operated valve 5 at the mixed bed A with the largest measured value on the electrically operated meter 2 at the outlet of the mixed bed A and the electrically operated valve 3 at the outlet of the mixed bed B, and simultaneously opens the electrically operated valve 7 at the outlet of the mixed bed C on the mixed bed C to ensure that the water quality index control of the mixed bed outlet main pipe is kept in a qualified range, thereby realizing the automatic control of the mixed bed for condensate; the mixed bed A and the mixed bed C operate, the mixed bed B is standby or the mixed bed B and the mixed bed C operate, and the standby automatic control method of the mixed bed A is similar.
The control standards of an online hydrogen conductivity meter 9, an online sodium meter 10, an online chlorine meter 11 and an online silicon meter 1 which are arranged on the mixed bed main pipe 13 pipeline meet the following indexes: the hydrogen conductivity is not more than 0.1 mu S/cm, the sodium is not more than 2 mu g/L, the chloride ion is not more than 1 mu g/L, and the silicon dioxide is not more than 10 mu g/L.
Compared with the prior art, the invention has the advantages of high safety of mixed bed hydrogen type operation and good economical efficiency of ammoniation operation: the premise that the conductivity, sodium, chloride ions and silicon dioxide of the water quality of a main pipe at the outlet of the mixing bed exceed control indexes is used as the premise for switching the mixing bed, once any index exceeds the control standard, the PLC automatically stops running the mixing bed electric valve with the largest water conductivity, and simultaneously runs the standby mixing bed, so that the water quality index of the mixing bed is not required to be controlled on the premise that the effluent water quality of the fine treatment system is qualified, the running time of the mixing bed is prolonged to the maximum extent, and the economic problem that the water production period is too short due to hydrogen type running of the mixing bed and the safety problem that salt is accumulated due to corrosion of thermodynamic equipment due to ammoniation running are effectively avoided.
Taking a 600MW supercritical direct current furnace unit of a certain power plant as an example, only ammonia is added to the feed water, 100% of the condensed water passes through the fine treatment desalination device, and the difference of different fine treatment operation modes is shown in Table 2.
TABLE 2 differences between the different polishing modes of operation
Drawings
FIG. 1 is a schematic diagram of a control system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the invention relates to an automatic control system for a mixed bed for condensate polishing, which comprises an online hydrogen conductivity meter 9, an online sodium meter 10, an online chlorine meter 11 and an online silicon meter 1 which are arranged on a pipeline of a mixed bed main pipe 13, an online conductivity meter 2 and an electrically operated valve 5 of a mixed bed A outlet which are arranged on an outlet pipeline of the mixed bed A, an online conductivity meter 3 and an electrically operated valve 6 of a mixed bed B outlet which are arranged on an outlet pipeline of the mixed bed B, and an online conductivity meter 4 and an electrically operated valve 7 of a mixed bed C outlet which are arranged on an outlet pipeline of the mixed bed C. Measuring signals of an online hydrogen conductivity meter 9, an online sodium meter 10, an online chlorine meter 11 and an online silicon meter 1 on the mixed bed main pipe 13 are transmitted to the PLC 8; measuring signals of the mixed bed A outlet on-line conductivity meter 3, the mixed bed B outlet on-line conductivity meter 4 and the mixed bed C outlet on-line conductivity meter 5 are transmitted to the PLC 8; the electric valve 5 at the outlet of the mixing bed A, the electric valve 6 at the outlet of the mixing bed B and the electric valve 7 at the outlet of the mixing bed C are connected with a PLC (programmable logic controller) 8, and the opening and closing of the electric valves are controlled by the PLC 8.
The invention discloses an automatic control method of a condensate polishing mixed bed automatic control system, which comprises the following steps: if the mixed bed A and the mixed bed B run and the mixed bed C is standby, the PLC 8 judges the turn-off and turn-on of the electric valve 5 at the outlet of the mixed bed A and the electric valve 6 at the outlet of the mixed bed B according to the measured values of the online hydrogen conductivity meter 9, the online sodium meter 10, the online chlorine meter 11, the online silicon meter 1, the online conductivity meter 2 at the outlet of the mixed bed A and the online conductivity meter 3 at the outlet of the mixed bed B: when the measured value of any one of the online hydrogen conductivity meter 9, the online sodium meter 10, the online chlorine meter 11 and the online silicon meter 1 on the mixed bed main pipe exceeds the control standard, the PLC 8 closes the electrically operated valve 5 at the outlet of the mixed bed A, which corresponds to the electrically operated valve 5 at the outlet of the mixed bed A, or the electrically operated valve 6 at the outlet of the mixed bed B, which is arranged on the mixed bed B and corresponds to the electrically operated valve 3 at the outlet of the mixed bed B with the largest measured value, and simultaneously opens the electrically operated valve 7 at the outlet of the mixed bed C arranged on the mixed bed C, so that the water quality index control of the mixed bed main pipe at the outlet of the mixed bed is ensured to be kept in a qualified range, and the automatic control of the condensed water fine; the mixed bed A and the mixed bed C operate, the mixed bed B is standby or the mixed bed B and the mixed bed C operate, and the standby automatic control method of the mixed bed A is similar.
Claims (3)
1. The utility model provides a condensate polishing mixes bed automatic control system which characterized in that: the system comprises an online hydrogen conductivity meter (9), an online sodium meter (10), an online chlorine meter (11) and an online silicon meter (1) which are arranged on a pipeline of a mixed bed main pipe (13), an online mixed bed A outlet conductivity meter (2) and a mixed bed A outlet electric valve (5) which are arranged on an outlet pipeline of a mixed bed A, an online mixed bed B outlet conductivity meter (3) and a mixed bed B outlet electric valve (6) which are arranged on an outlet pipeline of a mixed bed B, and an online mixed bed C outlet conductivity meter (4) and a mixed bed C outlet electric valve (7) which are arranged on an outlet pipeline of a mixed bed C; the system is characterized by further comprising a PLC (8), wherein the PLC (8) is connected with an online hydrogen conductivity meter (9), an online sodium meter (10), an online chlorine meter (11), an online silicon meter (1), an online conductivity meter (2) at an outlet of a mixed bed A, an online conductivity meter (3) at an outlet of a mixed bed B and an online conductivity meter (4) at an outlet of a mixed bed C and receives measurement signals of the meters, and the PLC (8) is connected with an electrically operated valve (5) at an outlet of the mixed bed A, an electrically operated valve (6) at an outlet of the mixed bed B and an electrically operated valve (7) at an outlet of the mixed bed C and controls the opening and closing of the electrically operated valves.
2. The automatic control method of the condensate polishing mixed bed automatic control system according to claim 1, characterized in that: the mixed bed A and the mixed bed B are adopted to operate, the mixed bed C is reserved, or the mixed bed A and the mixed bed C are adopted to operate, and the mixed bed B is reserved, or the mixed bed B and the mixed bed C are adopted to operate, and the mixed bed A is reserved; if the mixed bed A and the mixed bed B run and the mixed bed C is standby, the PLC (8) judges the turn-off and turn-on of the electric valve (5) at the outlet of the mixed bed A and the electric valve (6) at the outlet of the mixed bed B according to the measured values of the online hydrogen conductivity meter (9), the online sodium meter (10), the online chlorine meter (11), the online silicon meter (1), the online conductivity meter (2) at the outlet of the mixed bed A and the online conductivity meter (3) at the outlet of the mixed bed B: when the measured value of any one of the online hydrogen conductivity meter (9), the online sodium meter (10), the online chlorine meter (11) and the online silicon meter (1) on the mixed bed main pipe exceeds the control standard, the PLC (8) closes the electrically operated valve (5) at the outlet of the mixed bed A or the electrically operated valve (6) at the outlet of the mixed bed B corresponding to the electrically operated meter (2) at the outlet of the mixed bed A and the electrically operated meter (3) at the outlet of the mixed bed B with the largest measured value, and simultaneously opens the electrically operated valve (7) at the outlet of the mixed bed C on the mixed bed C, so as to ensure that the water quality index control of the mixed bed main pipe at the outlet of the mixed bed is kept in a qualified range, and realize the automatic control of the condensate polishing mixed; the mixed bed A and the mixed bed C operate, the mixed bed B is standby or the mixed bed B and the mixed bed C operate, and the standby automatic control method of the mixed bed A is similar.
3. The automatic control method according to claim 2, characterized in that: the control standards of the online hydrogen conductivity meter (9), the online sodium meter (10), the online chlorine meter (11) and the online silicon meter (1) arranged on the mixed bed main pipe (13) pipeline meet the following indexes: the hydrogen conductivity is not more than 0.1 mu S/cm, the sodium is not more than 2 mu g/L, the chloride ion is not more than 1 mu g/L, and the silicon dioxide is not more than 10 mu g/L.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172151.0A CN111229333A (en) | 2020-03-12 | 2020-03-12 | Automatic control system and method for condensate polishing mixed bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172151.0A CN111229333A (en) | 2020-03-12 | 2020-03-12 | Automatic control system and method for condensate polishing mixed bed |
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| Publication Number | Publication Date |
|---|---|
| CN111229333A true CN111229333A (en) | 2020-06-05 |
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| CN202010172151.0A Pending CN111229333A (en) | 2020-03-12 | 2020-03-12 | Automatic control system and method for condensate polishing mixed bed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405852A (en) * | 2021-07-21 | 2021-09-17 | 西安热工研究院有限公司 | Automatic pressure-reducing, flow-limiting and sampling device and method for high-temperature and high-pressure fluid |
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|---|---|---|---|---|
| CN202688127U (en) * | 2012-07-27 | 2013-01-23 | 大唐阳城发电有限责任公司 | Condensate polishing system of air cooling unit |
| CN103693713A (en) * | 2013-12-24 | 2014-04-02 | 华电国际电力股份有限公司山东分公司 | Condensate fine treatment high-temperature running system having heat supply and pure condensation modes |
| CN205367813U (en) * | 2016-01-20 | 2016-07-06 | 中机国能电力工程有限公司 | Avoid condensate water precision processing to mix muddy bed device that bed ran resin |
| CN205472790U (en) * | 2016-04-06 | 2016-08-17 | 华北电力科学研究院(西安)有限公司 | High -speed mixed -bed system of condensate polishing |
| CN110171870A (en) * | 2019-06-28 | 2019-08-27 | 西安热工研究院有限公司 | A kind of refined processing high-speed mixing bed failure terminal point control system and method |
-
2020
- 2020-03-12 CN CN202010172151.0A patent/CN111229333A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202688127U (en) * | 2012-07-27 | 2013-01-23 | 大唐阳城发电有限责任公司 | Condensate polishing system of air cooling unit |
| CN103693713A (en) * | 2013-12-24 | 2014-04-02 | 华电国际电力股份有限公司山东分公司 | Condensate fine treatment high-temperature running system having heat supply and pure condensation modes |
| CN205367813U (en) * | 2016-01-20 | 2016-07-06 | 中机国能电力工程有限公司 | Avoid condensate water precision processing to mix muddy bed device that bed ran resin |
| CN205472790U (en) * | 2016-04-06 | 2016-08-17 | 华北电力科学研究院(西安)有限公司 | High -speed mixed -bed system of condensate polishing |
| CN110171870A (en) * | 2019-06-28 | 2019-08-27 | 西安热工研究院有限公司 | A kind of refined processing high-speed mixing bed failure terminal point control system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405852A (en) * | 2021-07-21 | 2021-09-17 | 西安热工研究院有限公司 | Automatic pressure-reducing, flow-limiting and sampling device and method for high-temperature and high-pressure fluid |
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Application publication date: 20200605 |