CN212746910U - Circulation system for supplying water to cold and hot layered boiler - Google Patents
Circulation system for supplying water to cold and hot layered boiler Download PDFInfo
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- CN212746910U CN212746910U CN202021662975.8U CN202021662975U CN212746910U CN 212746910 U CN212746910 U CN 212746910U CN 202021662975 U CN202021662975 U CN 202021662975U CN 212746910 U CN212746910 U CN 212746910U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 254
- 238000009833 condensation Methods 0.000 claims abstract description 22
- 230000005494 condensation Effects 0.000 claims abstract description 22
- 239000008236 heating water Substances 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 7
- 239000008234 soft water Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 6
- 238000010793 Steam injection (oil industry) Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 18
- 239000000779 smoke Substances 0.000 description 14
- 239000013589 supplement Substances 0.000 description 5
- 230000001502 supplementing effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a circulation system for water supply of a cold and hot layered boiler, which comprises a boiler energy saver, the tail part of which is connected with a condenser, the inner cavity of a water tank is divided into a water storage cavity and a water taking well, the bottom wall of the water taking well is provided with a first inlet and a first outlet, the water storage cavity is divided into a lower layer cold area and an upper layer hot area through a cold and hot zone pore plate, the water taking well is vertically arranged with a plurality of floating ball turning plates on the side wall of the upper layer hot area, the port of an upper water distributor arranged in the upper layer hot area is communicated with the water taking well, and the bottom; a condensation water supply pipeline is connected between the second inlet and the second outlet and the condenser, and a condensation circulating pump is connected on the condensation water supply pipeline in series; the inlet of the boiler economizer is connected with a boiler water supply pipe, a boiler water feed pump is connected on the boiler water supply pipe in series, the outlet of the condenser is connected with a heating water outlet pipe, the boiler water supply pipe and the heating water outlet pipe are gathered to form a third inlet and outlet, a boiler water feed pipeline is connected between the first inlet and outlet and the third inlet and outlet, and a boiler water feed valve is connected on the boiler water feed pipeline in series.
Description
Technical Field
The utility model belongs to the technical field of machinery, a boiler, especially a cold and hot layering boiler water supply's circulation system is related to.
Background
Fire tube boilers are also known as shell boilers. The fire tube boiler is characterized in that smoke generated after fuel is combusted flows through a fire tube or a smoke tube to heat water, steam or a steam-water mixture outside the fire tube or the smoke tube. The basic structure is that a small cylinder, a pipe (called as a fire tube) or a shell (called as a furnace pipe) in other shapes is arranged in a large cylinder (a boiler shell), the fire tube is isolated from the large cylinder and forms a jacket, water is contained in the jacket, the fire tube and the furnace pipe are used as a combustion chamber and a flue to contain flame or smoke, and heat generated by combustion or brought by the smoke is transferred to the water through the wall of the fire tube.
The existing fire tube boiler cannot carry out a targeted water supply circulation adjustment scheme according to the load change of the boiler, and meanwhile, the water entering a condenser at the tail part of the boiler cannot be ensured to be in a low-temperature state all the time, so that the heat exchange efficiency of flue gas is low, and the energy efficiency of the boiler is wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided a circulation system that boiler supplied water promotes the heat transfer difference in temperature through the cold and hot layering principle of water tank to obtain the circulation system of the biggest characteristics of heat exchange efficiency against the current.
The purpose of the utility model can be realized by the following technical proposal: a circulating system for supplying water to a cold and hot layered boiler comprises a condensing boiler, a boiler economizer, a water tank, a boiler water supplementing mechanism and a steam distributing cylinder, wherein a condenser is connected with the tail of the boiler economizer, an inner cavity of the water tank is divided into a water storage cavity and a water taking well or a free float water distributor positioned on one side, a first inlet and a first outlet are formed in the bottom wall of the water taking well, the water storage cavity is divided into a lower-layer cold area and an upper-layer hot area through a cold and hot partition pore plate, a plurality of water passing holes are uniformly formed in the cold and hot partition pore plate, the water taking well is arranged on the side wall of the upper-layer hot area in a vertical arrangement mode, a floating ball turning plate is arranged on the unidirectional flow port upper cover, an upper water distributor is arranged in the upper-layer hot area, the port of the upper water distributor is communicated with the water taking well, a lower water distributor, the second inlet and outlet extends out of the bottom wall of the water tank; a condensation water supply pipeline is connected between the second inlet and the second outlet and the condenser, a condensation circulating pump is connected on the condensation water supply pipeline in series, and a water supply pipeline is connected between the boiler water supply mechanism and the condensation water supply pipeline; an inlet of the boiler economizer is connected with a boiler water supply pipe, a boiler water feed pump is connected on the boiler water supply pipe in series, an outlet of the condenser is connected with a heating water outlet pipe, the boiler water supply pipe and the heating water outlet pipe are gathered to form a third inlet and outlet, a boiler water feed pipeline is connected between the first inlet and outlet and the third inlet and outlet, and a boiler water feed valve is connected on the boiler water feed pipeline in series; the steam outlet of the condensing boiler is connected with the steam distributing cylinder through a main steam pipe, and the steam distributing cylinder is provided with a plurality of branch steam conveying pipes.
In the above-mentioned circulation system for supplying water to the cold and hot stratified boiler, the boiler water supply mechanism includes a salt cylinder and at least one water softener, and the salt cylinder is connected with the water softener. The water softening equipment matched with the boiler enters through a lower water distributor in the water tank to form a lower cold area with layered cold and hot.
In the circulation system for supplying water to the cold and hot layered boiler, the water supply pipeline is connected with the water tank liquid level control electromagnetic valve and the soft water supplement check valve in series.
In the above circulation system for supplying water to the cold and hot layered boiler, the outer wall of the water tank is communicated with a liquid level controller.
In the circulation system for supplying water to the cold and hot layered boiler, a water level control line is carved on the inner wall of the water tank, the water level control line is the highest value of the water level contained in the upper hot zone, and the upper water distributor is positioned below the water level control line.
In the above-mentioned circulation system of cold and hot layering boiler water supply, the top of the water tank is provided with a boiler economizer, a condenser exhaust steam injection port and a breather valve.
Compared with the prior art, the circulating system for supplying water to the cold and hot layered boiler has the following advantages:
1. according to the principle that the heat of hot water is always moved upwards, the liquid level of the water tank naturally forms an upper-lower layering phenomenon, the upper layer is hot water, the lower layer is cold water, the water supply entering the condenser is always kept with lower cold water entering, the maximization of the smoke heat exchange temperature difference in the condenser is ensured, the optimal temperature requirement of latent heat of vaporization is obtained, the smoke temperature and the condenser water supply temperature are kept in a large temperature difference constant operation range, and the overall heat exchange efficiency of the boiler is remarkably improved.
2. By utilizing the principle of a free floater or floating ball flap water taking well, high-temperature water obtained by heat exchange of the condenser is supplemented to the boiler economizer through the water pump in time for use, so that the whole water tank is kept at a lower operation temperature, the requirement of large temperature difference heat exchange of reverse flow of smoke heat exchange at the tail part of the boiler can be fully embodied, and the overall operation efficiency of the boiler is effectively improved.
Drawings
Fig. 1 is a schematic view showing the structure and operation of the circulation system for supplying water to a cold and hot stratified boiler.
In the figure, 1, a boiler economizer; 2. a boiler water supply pipe; 3. a boiler feed pump; 4. a condenser; 5. heating the water outlet pipe; 6. a water tank; 7. taking a water well; 8. a floating ball turning plate; 9. a boiler feed water conduit; 10. a boiler feed water valve; 11. an upper water distributor; 12. a cold and hot zoned orifice plate; 13. a lower water distributor; 14. a liquid level controller; 15. a condensed water supply pipeline; 16. a condensation circulating pump; 17. a salt cylinder; 18. a water softener; 19. a water replenishing pipeline; 20. a water tank liquid level control electromagnetic valve; 21. a soft water supplement check valve; 22. a main steam pipe; 23. and (4) separating cylinders.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in figure 1, the circulation system of the water supply of the cold and hot layered boiler comprises a condensing boiler and a boiler economizer 1, the boiler energy saver comprises a water tank 6, a boiler water supplementing mechanism and a steam distributing cylinder 23, wherein the tail part of the boiler energy saver 1 is connected with a condenser 4, the inner cavity of the water tank 6 is divided into a water storage cavity and a water taking well 7 or a free float water distributor positioned on one side, the bottom wall of the water taking well 7 is provided with a first inlet and a first outlet, the water storage cavity is divided into a lower-layer cold area and an upper-layer hot area through a cold and hot partition pore plate 12, the cold and hot partition pore plate 12 is uniformly provided with a plurality of water through holes, the side wall of the water taking well 7 adjacent to the upper-layer hot area is vertically arranged with a plurality of one-way flow ports, the upper cover of the one-way flow ports is provided with a float turning plate 8, the upper-layer hot area is provided with an upper water distributor 11, the port of the upper water; a condensation water supply pipeline 15 is connected between the second inlet and the second outlet and the condenser 4, a condensation circulating pump 16 is connected on the condensation water supply pipeline 15 in series, and a water replenishing pipeline 19 is connected between the boiler water replenishing mechanism and the condensation water supply pipeline 15; an inlet of a boiler economizer 1 is connected with a boiler water supply pipe 2, a boiler water feed pump 3 is connected on the boiler water supply pipe 2 in series, an outlet of a condenser 4 is connected with a heating water outlet pipe 5, the boiler water supply pipe 2 and the heating water outlet pipe 5 are gathered to form a third inlet and outlet, a boiler water feed pipeline 9 is connected between the first inlet and the third inlet and outlet, and a boiler water feed valve 10 is connected on the boiler water feed pipeline 9 in series; the steam outlet of the condensing boiler is connected with a steam-distributing cylinder 23 through a main steam pipe 22, and the steam-distributing cylinder 23 is provided with a plurality of branch steam pipes.
The boiler water replenishing mechanism comprises a salt cylinder 17 and at least one water softener 18, wherein the salt cylinder 17 is connected with the water softener 18. The water softening equipment matched with the boiler enters through a lower water distributor 13 in the water tank 6 to form a lower cold area with layered cold and hot.
The water supply pipeline 19 is connected with a water tank liquid level control electromagnetic valve 20 and a soft water supplement check valve 21 in series.
The outer wall of the water tank 6 is communicated with a liquid level controller 14.
A water level control line is carved on the inner wall of the water tank 6, the water level control line is the highest value of the water level contained in the upper hot area, and the upper water distributor 11 is positioned below the water level control line. Depending on the arrangement, a water distributor on a free float can be used to control the water level in the hot zone.
The top of the water tank 6 is provided with a boiler economizer 1, a steam exhaust injection port of the condenser 4 and a breather valve.
The operation method of the circulating system for supplying water to the cold and hot layered boiler comprises the following steps:
1) firstly, starting a condensation circulating pump 16, sucking low-temperature water in a lower-layer cold area out of a lower water distributor 13, and enabling the low-temperature water to enter a condenser 4 through a condensation water supply pipeline 15;
2) the low-temperature water is heated by the heat exchange of the smoke and the steam in the condenser 4 to form high-temperature water, then flows through the heating water outlet pipe 5 and enters the boiler water feeding pump 3,
a. when the load of the boiler is reduced, a part of high-temperature water enters the first inlet and outlet through a boiler water supply pipeline 9 and then flows into the water taking well 7, and then the high-temperature water is slowly distributed in the upper-layer hot area through the upper water distributor 11;
b. when the load of the boiler is increased, the frequency of the boiler water feeding pump 3 is increased, the flow rate is increased, the flow direction in the boiler water feeding pipeline 9 is reversed, high-temperature water is sucked by the upper water distributor 11 in the upper hot area or is sucked after the floating ball turnover plate 8 is opened, the high-temperature water flows reversely through the water taking well 7, the first inlet and the first outlet and the boiler water feeding pipeline 9, and the high-temperature water is supplemented to the boiler water feeding pump 3, so that the high-temperature water in the upper hot area in the water tank 6 is used in time.
The operation method of the circulation system for supplying water to the cold and hot layered boiler integrally keeps the water tank 6 at a lower temperature and keeps the heat exchange of the boiler smoke temperature within a large temperature difference constant heat exchange range.
After the boiler supplies soft water and is treated by the water softener 18, a liquid level signal is given by the liquid level controller 14, enters the condensed water supply pipeline 15 through the water tank liquid level control electromagnetic valve 20 and the soft water supply check valve 21, and then slowly flows into the lower-layer cold area of the water tank 6 through the lower water distributor 13, and meanwhile, the flowing degree of the water in the water tank 6 is ensured to be kept minimum, so that the temperature in the water tank 6 is enabled to generate high-low layering.
After the boiler supplementing soft water is treated by the water softener 18, a liquid level signal is given by the liquid level controller 14, the boiler supplementing soft water enters the condensation water supply pipeline 15 through the water tank liquid level control electromagnetic valve 20 and the soft water supplementing check valve 21 and then directly enters the condensation circulating pump 16 to supplement the water quantity, so that the circulating water entering the condenser 4 is always kept at a lower temperature, and the heat exchange of the condenser 4 achieves the smoke condensation effect.
When the liquid level rises to exceed the floating ball, the floating ball turning plate 8 closes the one-way flow port; when the liquid level drops below the floating ball, the floating ball turning plate 8 opens the one-way flow port; or the water distributor automatically floats on the liquid level of the water tank 6 through the bottom telescopic hose by the free float water distributor to finish the absorption and distribution of hot water.
Compared with the prior art, the circulating system for supplying water to the cold and hot layered boiler has the following advantages:
1. according to the principle that the heat of hot water is always moved upwards, the liquid level of the water tank 6 is naturally layered, the upper layer is hot water, the lower layer is cold water, the water supply entering the condenser 4 is always kept at lower cold water entering, the maximization of the temperature difference of smoke and steam heat exchange in the condenser 4 is ensured, the optimal temperature requirement of latent heat of vaporization is obtained, the smoke temperature and the water supply temperature of the condenser 4 are kept in a large temperature difference constant operation range, and the overall heat exchange efficiency of the boiler is remarkably improved.
2. By utilizing the principle of a water taking well with a free floater or a floating ball turnover plate 8, high-temperature water obtained by heat exchange of the condenser 4 is supplemented to the boiler economizer 1 through a water pump in time for use, so that the whole water tank 6 is kept at a lower operation temperature, the requirement of reverse flow large temperature difference heat exchange of smoke and steam heat exchange at the tail part of the boiler can be fully embodied, and the overall operation efficiency of the boiler is effectively improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the boiler economizer 1 is used more herein; a boiler water supply pipe 2; a boiler feed pump 3; a condenser 4; heating the water outlet pipe 5; a water tank 6; a water taking well 7; a floating ball turning plate 8; a boiler feed water line 9; a boiler feed water valve 10; an upper water distributor 11; a cold and hot zoned orifice 12; a lower water distributor 13; a liquid level controller 14; a condensate feed line 15; a condensation circulation pump 16; a salt cylinder 17; a water softener 18; a water supply pipeline 19; a tank level control solenoid valve 20; a soft water supplement check valve 21; a main steam pipe 22; cylinder 23, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (6)
1. A circulating system for supplying water to a cold and hot layered boiler comprises a condensing boiler, a boiler economizer, a water tank, a boiler water replenishing mechanism and a steam distributing cylinder, wherein a condenser is connected with the tail part of the boiler economizer and is characterized in that an inner cavity of the water tank is divided into a water storage cavity and a water taking well or a free float water distributor positioned on one side, a first inlet and a first outlet are formed in the bottom wall of the water taking well, the water storage cavity is divided into a lower layer cold area and an upper layer hot area through a cold and hot partition pore plate, a plurality of water passing holes are uniformly formed in the cold and hot partition pore plate, a plurality of one-way flow ports are formed in the vertical arrangement of the water taking well close to the side wall of the upper layer hot area, a floating ball turning plate is arranged on the one-way flow port upper cover, an upper water distributor is arranged in the upper layer hot area, the port of the upper water distributor is communicated with the, the second inlet and outlet extends out of the bottom wall of the water tank; a condensation water supply pipeline is connected between the second inlet and the second outlet and the condenser, a condensation circulating pump is connected on the condensation water supply pipeline in series, and a water supply pipeline is connected between the boiler water supply mechanism and the condensation water supply pipeline; an inlet of the boiler economizer is connected with a boiler water supply pipe, a boiler water feed pump is connected on the boiler water supply pipe in series, an outlet of the condenser is connected with a heating water outlet pipe, the boiler water supply pipe and the heating water outlet pipe are gathered to form a third inlet and outlet, a boiler water feed pipeline is connected between the first inlet and outlet and the third inlet and outlet, and a boiler water feed valve is connected on the boiler water feed pipeline in series; the steam outlet of the condensing boiler is connected with the steam distributing cylinder through a main steam pipe, and the steam distributing cylinder is provided with a plurality of branch steam conveying pipes.
2. A water circulating system for a cold and hot stratified boiler as claimed in claim 1, wherein said boiler feed water mechanism includes a salt cylinder and at least one water softener, said salt cylinder being connected to said water softener.
3. A water circulating system for a cold and hot stratified boiler as claimed in claim 1, wherein a tank level control solenoid valve and a soft water supply check valve are connected in series to said water supply pipe.
4. A circulation system of water supply for a cold and hot stratified boiler as claimed in claim 1, wherein a level controller is connected to an outer wall of said water tank.
5. A water circulating system for a cold and hot stratified boiler as claimed in claim 1, wherein a water level control line is defined on an inner wall of said water tank, said water level control line being a highest value of a water level received in said upper hot zone, and said upper water distributor being located below said water level control line.
6. A water circulating system for a cold and hot stratified boiler as claimed in claim 1, wherein a boiler economizer, a condenser exhaust steam injection port and a breather valve are provided at a top of said water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021662975.8U CN212746910U (en) | 2020-08-11 | 2020-08-11 | Circulation system for supplying water to cold and hot layered boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021662975.8U CN212746910U (en) | 2020-08-11 | 2020-08-11 | Circulation system for supplying water to cold and hot layered boiler |
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| Publication Number | Publication Date |
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| CN212746910U true CN212746910U (en) | 2021-03-19 |
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| CN202021662975.8U Expired - Fee Related CN212746910U (en) | 2020-08-11 | 2020-08-11 | Circulation system for supplying water to cold and hot layered boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981456A (en) * | 2020-08-11 | 2020-11-24 | 浙江特富发展股份有限公司 | Circulating system for supplying water to cold and hot layered boiler and operating method thereof |
-
2020
- 2020-08-11 CN CN202021662975.8U patent/CN212746910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981456A (en) * | 2020-08-11 | 2020-11-24 | 浙江特富发展股份有限公司 | Circulating system for supplying water to cold and hot layered boiler and operating method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |