CN210398885U - Water supply system applied to boiler - Google Patents
Water supply system applied to boiler Download PDFInfo
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- CN210398885U CN210398885U CN201921213481.9U CN201921213481U CN210398885U CN 210398885 U CN210398885 U CN 210398885U CN 201921213481 U CN201921213481 U CN 201921213481U CN 210398885 U CN210398885 U CN 210398885U
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Abstract
The utility model discloses a water supply system applied to a boiler, which comprises a No. 1 boiler, a No. 2 boiler and two deaerators, wherein the two deaerators are respectively connected with a boiler drain tank through a boiler drain pump outlet main pipe; the first valve combination and the second valve combination both comprise check valves, and two ends of each check valve are respectively connected with corresponding bypass valves; the third valve combination comprises two valves which are connected in sequence; no. 1 boiler, No. 2 boiler all connect corresponding water supply system, and water supply system all includes the feed pump that two both ends are connected respectively. The two ends of the two check valves are respectively connected with the corresponding side part doors, the third valve combination comprises two valves, the two bypass valves can realize the mutual use of the two boiler water supply systems, the probability of steam pocket water shortage safety accidents is reduced, and the service life of the equipment is prolonged.
Description
Technical Field
The utility model relates to a water supply system especially relates to a be applied to water supply system of boiler.
Background
Present water supply system who is applied to the boiler includes No. 1 boiler, No. 2 boiler and boiler drain box, No. 1 boiler, No. 2 boiler is connected with the boiler drain box through boiler drain pump export female pipe respectively, No. 1 boiler, be provided with two oxygen-eliminating devices between No. 2 boiler, be provided with valve a1 and valve combination b1 between No. 1 boiler and the oxygen-eliminating device that corresponds, valve a1 and valve combination b1 are connected through boiler drain pump export female pipe, be provided with valve a2 and valve combination b2 between No. 2 boiler and the oxygen-eliminating device that corresponds, connect through boiler drain pump export female pipe between valve a2 and the valve combination b2, valve a1 is two the same valves with valve a2, corresponding water supply system is all connected to No. 1 boiler and No. 2 boiler, water supply system includes two water-feeding pumps respectively. In the use process, when the boiler is in a non-pressure state in a shutdown state, the boiler drain tank supplies water to the No. 1 boiler and the No. 2 boiler through the combination of the main pipe of the outlet of the boiler drain pump and the valve. When the boiler is in the operating condition and has pressure, the boiler drain tank can not supply water for No. 1 boiler and No. 2 boiler respectively through the combination of the main pipe of the boiler drain pump outlet and the valve, and only two water supply pumps corresponding to each boiler can supply water.
Because the valve combination b1 and the valve combination b2 both comprise a check valve, when the water supply system of one boiler cannot supply water, the water supply system cannot supply water through the corresponding water supply pump of the other boiler. The two feed pumps of the No. 1 boiler and the No. 2 boiler are respectively an operating device and a standby device. When the operating equipment of the boiler No. 1 is tripped due to failure and the standby equipment cannot be started normally, no water is supplied to the boiler No. 1. And because the valve combination b1 and the valve combination b2 both comprise a check valve, when the water supply system of the No. 1 boiler cannot supply water, the water supply system cannot supply water through the water supply pump corresponding to the No. 2 boiler, so that the No. 1 boiler is forced to be shut down, the steam pocket water shortage accident occurs, the equipment is damaged, and the service life of the equipment is short. Accordingly, a water supply system applied to a boiler is proposed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be applied to water supply system of boiler to solve current water supply system and take place the incident easily and cause the technical problem that equipment life is low.
In order to solve the technical problem, the embodiment of the utility model discloses following technical scheme:
the utility model provides a be applied to water supply system of boiler, includes No. 1 boiler, No. 2 boilers, two oxygen-eliminating devices and boiler drain box, No. 1 boiler, No. 2 boilers, two oxygen-eliminating devices pass through the female union coupling of boiler drain pump outlet with the boiler drain box respectively, wherein: a first valve combination is arranged between the boiler No. 1 and the boiler drain box, a second valve combination is arranged between the boiler No. 2 and the boiler drain box, and third valve combinations corresponding to the deaerators are arranged between the two deaerators and the boiler drain box; a first valve combination and a third valve combination corresponding to the deaerator are arranged between the boiler No. 1 and the deaerator corresponding to the boiler No. 1, the first valve combination and the third valve combination corresponding to the deaerator are connected through a boiler drain pump outlet main pipe, a second valve combination and a third valve combination corresponding to the deaerator are arranged between the boiler No. 2 and the deaerator corresponding to the boiler No. 2, and the second valve combination and the third valve combination corresponding to the deaerator are connected through the boiler drain pump outlet main pipe; the first valve combination comprises a first check valve, two ends of the first check valve are respectively connected with a first bypass valve, the second valve combination comprises a second check valve, and two ends of the second check valve are respectively connected with a second bypass valve; the two third valve combinations respectively comprise a first valve and a second valve, and the deaerator, the first valve and the second valve are sequentially connected; no. 1 boiler, No. 2 boiler all connect corresponding water supply system, and water supply system all includes two feed pumps, and the both ends of two feed pumps are connected respectively.
Optionally, the first valve is a high pressure welded first valve and the second valve is a high pressure welded second valve.
Optionally, two boiler drain pumps are respectively arranged between the boiler 1 and the boiler 2 and the boiler drain tank, and two ends of the two boiler drain pumps are respectively connected.
Optionally, both ends of both boiler drain pumps are provided with an inlet door and an outlet door.
Optionally, the first bypass door is a high pressure welded first bypass door, and the second bypass door is a high pressure welded second bypass door.
Has the advantages that: the utility model provides a be applied to water supply system of boiler, this water supply system include No. 1 boiler, No. 2 boiler, two oxygen-eliminating devices and boiler steam trap, and No. 1 boiler, No. 2 boiler, two oxygen-eliminating devices pass through the female union coupling of boiler steam trap export with the boiler steam trap respectively. In the use, when the boiler was in the off-stream state, the boiler drain tank was given No. 1 boiler, No. 2 boiler and two oxygen-eliminating devices water supply respectively through the female pipe of boiler drain pump export. When the boiler is in a working state and has pressure, the boiler drain tank can not supply water to the No. 1 boiler and the No. 2 boiler respectively through the combination of the main pipe of the outlet of the boiler drain pump and the valve, and only water can be supplied through the water supply system of each boiler. The two boilers are connected with corresponding water supply systems, the water supply systems comprise two water supply pumps, and two ends of the two water supply pumps are connected respectively. However, when one of the two water feeding pumps fails and the other one of the two water feeding pumps cannot be started normally, the boiler cannot supply water through the water feeding system of the boiler, and safety accidents are easily caused. In order to influence the boiler water supply when a self water supply system cannot be normally used, a first valve combination is arranged between the boiler No. 1 and a boiler drain tank, a second valve combination is arranged between the boiler No. 2 and the boiler drain tank, and third valve combinations corresponding to deaerators are arranged between the two deaerators and the boiler drain tank; a first valve combination and a third valve combination corresponding to the deaerator are sequentially arranged between the boiler No. 1 and the deaerator corresponding to the boiler No. 1, the first valve combination and the third valve combination corresponding to the deaerator are connected through a boiler drain pump outlet main pipe, a second valve combination and a third valve combination corresponding to the deaerator are sequentially arranged between the boiler No. 2 and the deaerator corresponding to the boiler No. 2, and the second valve combination and the third valve combination corresponding to the deaerator are connected through a boiler drain pump outlet main pipe; the first valve combination comprises a first check valve, two ends of the first check valve are respectively connected with a first bypass valve, the second valve combination comprises a second check valve, and two ends of the second check valve are respectively connected with a second bypass valve. In the use, when the water supply system of No. 1 boiler can't give No. 1 boiler normal water supply, the water in the feed-water pump among the water supply system of No. 2 boiler passes through second bypass door and first bypass door, gives No. 1 boiler water supply through boiler hydrophobic pump outlet main pipe. Similarly, when the water supply system of the No. 2 boiler can not normally supply water for the No. 2 boiler, water in a water supply pump in the water supply system of the No. 1 boiler passes through the first bypass door and the second bypass door and is supplied to the No. 2 boiler through the drain pump outlet main pipe of the boiler. When the water supply system of No. 1 boiler or No. 2 boiler respectively gives No. 2 boiler or No. 1 boiler water supply, water pressure is great, destroys the oxygen-eliminating device that corresponds with each boiler easily. In order to protect the deaerators corresponding to the boilers, a third valve combination arranged between the boiler No. 1 and the deaerator corresponding to the boiler No. 1 comprises a first valve and a second valve, the first valve is positioned between the deaerator corresponding to the boiler No. 1 and the second valve, and the deaerator corresponding to the boiler No. 1, the first valve and the second valve are sequentially connected through a main outlet pipe of a drain pump of the boiler. Similarly, the third valve combination that still sets up between No. 2 boilers and the oxygen-eliminating device rather than corresponding includes first valve and second valve, and first valve is located between the oxygen-eliminating device that corresponds with No. 2 boilers and the second valve, and the oxygen-eliminating device that corresponds with No. 2 boilers, first valve and second valve loop through the female union coupling of boiler drain pump export. The utility model discloses in, the second bypass door is connected at the both ends of the second check valve of first valve combination connection first bypass department, second valve combination, and the third valve combination includes first valve and second valve, and two bypass doors can be with realizing two boiler water supply system's interoperable, have reduced the probability of the steam pocket water shortage incident that causes when the unable normal use of boiler self water supply system, improve equipment's life.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural view of a water supply system applied to a boiler provided by the utility model;
description of the drawings: the boiler comprises a boiler 1-1, a boiler 2-2, a deaerator 3, a boiler 4-a drain tank, a boiler 5-a drain pump outlet main pipe, a first valve combination 6, a second valve combination 7, a third valve combination 8, a water supply system 9, a boiler drain pump 41, a first check valve 61, a first bypass valve 62, a second check valve 71, a second bypass valve 72, a first valve 81, a second valve 82 and a water supply pump 91.
Detailed Description
Referring to fig. 1, for the utility model provides a pair of be applied to water supply system's of boiler structural schematic diagram, can know, the utility model provides a be applied to water supply system of boiler, this water supply system includes 1 boiler 1, 2 boiler 2, two oxygen-eliminating devices 3 and boiler steam trap 4, 1 boiler 1, 2 boiler 2, two oxygen-eliminating devices 3 are connected through boiler steam trap outlet female pipe 5 with boiler steam trap 4 respectively. In the use, when the boiler was in the off-stream state, boiler drain tank 4 was given 1 number boiler 1, 2 number boiler 2 and two oxygen-eliminating devices 3 water supply respectively through boiler drain pump female pipe 5. When the boiler is in a working state and has pressure, the boiler drain tank 4 can not supply water to the No. 1 boiler 1 and the No. 2 boiler 2 through the boiler drain pump outlet main pipe 5, the first valve combination 6 and the second valve combination 7 respectively, and only can supply water through the water supply system 9 of each boiler. The two boilers are connected with the corresponding water supply system 9, the water supply system 9 comprises two water supply pumps 91, and two ends of the two water supply pumps 91 are connected respectively. However, when one of the two water feed pumps 91 fails and the other one of the two water feed pumps 91 cannot be started normally, the boiler cannot feed water through the water feed system 91, which is likely to cause a safety accident. In order to influence the boiler water supply when the self water supply system 9 cannot be normally used, a first valve combination 6 is arranged between the boiler 1 and the boiler drain tank 4, a second valve combination 7 is arranged between the boiler 2 and the boiler drain tank 4, and third valve combinations 8 corresponding to deaerators are arranged between the two deaerators 3 and the boiler drain tank 4; a first valve combination 6 and a third valve combination 8 corresponding to the deaerator are sequentially arranged between the boiler 1 and the deaerator 3 corresponding to the boiler 1, the first valve combination 6 and the third valve combination 8 corresponding to the deaerator are connected through a boiler drain pump outlet main pipe 5, a second valve combination 7 and a third valve combination 8 corresponding to the deaerator are sequentially arranged between the boiler 2 and the deaerator 3 corresponding to the boiler 2, and the second valve combination 7 and the third valve combination 8 corresponding to the deaerator are connected through a boiler drain pump outlet main pipe 5; the first valve combination 6 comprises a first check valve 61, two ends of the first check valve 61 are respectively connected with a first bypass valve 62, the second valve combination 7 comprises a second check valve 71, and two ends of the second check valve 71 are respectively connected with a second bypass valve 72. In the using process, when the water supply system 9 of the boiler 1 No. 1 can not normally supply water for the boiler 1 No. 1, the water in the water supply pump 91 in the water supply system 9 of the boiler 2 No. 2 passes through the second bypass door 72 and the first bypass door 62, and the water is supplied to the boiler 1 No. 1 through the outlet main pipe 5 of the boiler drainage pump. Similarly, when the water supply system 9 of the boiler 2 No. 2 cannot normally supply water to the boiler 2 No. 2, the water in the water supply pump 91 of the water supply system 9 of the boiler 1 No. 1 passes through the first bypass gate 62 and the second bypass gate 72, and is supplied to the boiler 2 No. 2 through the boiler drain pump outlet main pipe 5. When the water supply system 9 of the boiler 1 or 2 supplies water to the boiler 2 or 1 respectively, the water pressure is high, and the deaerator 3 corresponding to each boiler is easily damaged. In order to protect the deaerators 3 corresponding to the boilers, the third valve combination 8 arranged between the boiler 1 and the deaerator 3 corresponding to the boiler 1 comprises a first valve 81 and a second valve 82, the first valve 81 is located between the deaerator 3 corresponding to the boiler 1 and the second valve 82, and the deaerator 3, the first valve 81 and the second valve 82 corresponding to the boiler 1 are sequentially connected through the boiler drain pump outlet main pipe 5. Similarly, the third valve assembly 8 arranged between the boiler 2 and the deaerator 3 corresponding to the boiler 2 comprises a first valve 81 and a second valve 82, the first valve 81 is positioned between the deaerator 3 and the second valve 82 corresponding to the boiler 2, and the deaerator 3, the first valve 81 and the second valve 82 corresponding to the boiler 2 are sequentially connected through the drain pump outlet main pipe 5 of the boiler. The utility model discloses in, first by-pass door 62 is connected at the both ends of first check valve 61 of first valve combination 6, second by-pass door 72 is connected at the both ends of second check valve 71 of second valve combination 7, third valve combination 8 includes first valve 81 and second valve 82, two by-pass doors can be with realizing two boiler water supply system 9 mutually uses, the probability of the steam pocket water shortage incident that causes when having reduced the unable normal use of boiler self water supply system 9, improve equipment's life.
In order to reduce the damage to the deaerator 3 when two boilers supply water to each other, in this embodiment, two third valve combinations 8 all include first valve 81 and second valve 82, and first valve 81 is the first valve of high pressure welding, and second valve 82 is the second valve of high pressure welding. The first valve 81 and the second valve 82 function in the same manner, and both are for isolating the deoxygenator 3. Because when supplying water mutually, water pressure can reach 15MPA, and first valve 81 is the high pressure welded first valve, and second valve 82 is the high pressure welded second valve, can improve fail safe nature greatly, prevents that the valve from taking place interior hourglass phenomenon.
In order to supply water to the boiler 1 or 2 in the shutdown state, in this embodiment, two boiler drain pumps 41 are respectively arranged between the boiler 1 or 2 and the boiler drain tank 4, two ends of the two boiler drain pumps 41 are respectively connected, and two ends of the two boiler drain pumps 41 are respectively provided with an inlet door and an outlet door. Two boiler drain pumps 41 are provided, one as a running device and one as a standby device. In use, water in the boiler drain tank 4 enters a boiler drain pump 41 through an inlet door, and the water in the boiler drain pump 41 is delivered to the first valve assembly 6 and the second valve assembly 7 through an outlet door.
In order to ensure that the two boilers are normally connected to each other, in the present embodiment, the first bypass door 62 is a high-pressure welded first bypass door, and the second bypass door 72 is a high-pressure welded second bypass door. Since the water pressure of the boiler's feed water system 9 reaches 15MPA, the ordinary bypass door may be damaged. Because the first bypass door 62 is high pressure welded first bypass door, and the second bypass door 72 is high pressure welded second bypass door, the impact of high pressure water can be resisted, and the damage of equipment is reduced.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (5)
1. The utility model provides a be applied to water supply system of boiler, its characterized in that, including No. 1 boiler (1), No. 2 boiler (2), two oxygen-eliminating device (3) and boiler drain box (4), No. 1 boiler (1) No. 2 boiler (2), two oxygen-eliminating device (3) respectively with boiler drain box (4) are connected through the female pipe (5) of boiler drain pump export, wherein:
a first valve combination (6) is arranged between the boiler (1) and the boiler drain box (4), a second valve combination (7) is arranged between the boiler (2) and the boiler drain box (4), and third valve combinations (8) corresponding to the deaerators (3) are arranged between the deaerators (3) and the boiler drain box (4);
a first valve combination (6) and a third valve combination (8) corresponding to the deaerator (3) are arranged between the boiler (1) and the deaerator (3) corresponding to the boiler (1), the first valve combination (6) and the third valve combination (8) corresponding to the deaerator (3) are connected through a boiler drain pump outlet main pipe (5), a second valve combination (7) and a third valve combination (8) corresponding to the deaerator (3) are arranged between the boiler (2) and the deaerator (3) corresponding to the boiler (2), and the second valve combination (7) and the third valve combination (8) corresponding to the deaerator (3) are connected through the boiler drain pump outlet main pipe (5);
the first valve combination (6) comprises a first check valve (61), two ends of the first check valve (61) are respectively connected with a first bypass valve (62), the second valve combination (7) comprises a second check valve (71), and two ends of the second check valve (71) are respectively connected with a second bypass valve (72);
the two third valve combinations (8) respectively comprise a first valve (81) and a second valve (82), and the deaerator (3), the first valve (81) and the second valve (82) are sequentially connected;
no. 1 boiler (1) No. 2 boiler (2) all connect corresponding water supply system (9), water supply system (9) all include two feed-water pump (91), two the both ends of feed-water pump (91) are connected respectively.
2. The water supply system according to claim 1, wherein the first valve (81) is a high pressure welded first valve and the second valve (82) is a high pressure welded second valve.
3. The water supply system according to claim 1, characterized in that two boiler drain pumps (41) are arranged between the boiler No. 1 (1) and the boiler No. 2 (2) and the boiler drain tank (4), and two ends of the two boiler drain pumps (41) are connected respectively.
4. Water supply system according to claim 3, characterized in that both ends of both boiler drain pumps (41) are provided with inlet and outlet gates.
5. The water supply system of claim 1, wherein the first bypass door (62) is a high pressure welded first bypass door and the second bypass door (72) is a high pressure welded second bypass door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921213481.9U CN210398885U (en) | 2019-07-30 | 2019-07-30 | Water supply system applied to boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921213481.9U CN210398885U (en) | 2019-07-30 | 2019-07-30 | Water supply system applied to boiler |
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| Publication Number | Publication Date |
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| CN210398885U true CN210398885U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921213481.9U Active CN210398885U (en) | 2019-07-30 | 2019-07-30 | Water supply system applied to boiler |
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| CN (1) | CN210398885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105125A (en) * | 2023-04-13 | 2023-05-12 | 南京加诺奥能锅炉集团有限公司 | Water supply regulation and control system for boiler |
-
2019
- 2019-07-30 CN CN201921213481.9U patent/CN210398885U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116105125A (en) * | 2023-04-13 | 2023-05-12 | 南京加诺奥能锅炉集团有限公司 | Water supply regulation and control system for boiler |
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Effective date of registration: 20220616 Granted publication date: 20200424 |