A saturated steam accumulator drain recovery system

Abstract

The utility model relates to a saturated steam heat accumulator drainage recovery system belongs to energy recycling and industrial water treatment technical field. Technical scheme is: heat accumulator one (1) and heat accumulator two (2) are connected with the one end of drainage pipeline (5) through branch pipeline one and branch pipeline two respectively, and the other end of drainage pipeline is connected with deaerator one (7) and deaerator two (8) through branch pipeline three and branch pipeline four respectively, and branch pipeline one, branch pipeline two, branch pipeline three and branch pipeline four are equipped with heat accumulator drainage outlet regulating valve group one (3), heat accumulator drainage outlet regulating valve group two (4), deaerator regulating valve group one (9) and deaerator regulating valve group two (10) respectively, and hot water pump (6) is equipped on drainage pipeline. The utility model discloses by the saturated steam heat accumulator drainage is led to the bottom of steelmaking deaerator and recovers heat, realizes the secondary use of energy, and greatly improves the energy utilization efficiency, and simultaneously optimizes the use of desalted water, and reduces the consumption of desalted water.

Claims

1. A saturated steam accumulator condensate recovery system, characterized in that: It includes a heat storage unit 1 (1), a heat storage unit 2 (2), a drain pipe (5), a hot water pump (6), a deaerator 1 (7) and a deaerator 2 (8). The heat storage unit 1 (1) and the heat storage unit 2 (2) are connected to one end of the drain pipe (5) through branch pipe 1 (31) and branch pipe 2 (32) respectively. The other end of the drain pipe (5) is connected to the deaerator 1 (7) and the deaerator 2 (8) through branch pipe 3 (33) and branch pipe 4 (34) respectively. The branch pipe 1 (31), the branch pipe 2 (32), the branch pipe 3 (33) and the branch pipe 4 (34) are respectively equipped with a heat storage drain outlet regulating valve group 1 (3), a heat storage drain outlet regulating valve group 2 (4), a deaerator regulating valve group 1 (9) and a deaerator regulating valve group 2 (10). The drain pipe (5) is equipped with a hot water pump (6).

2. The saturated steam accumulator condensate recovery system according to claim 1, characterized in that: The accumulator drain outlet regulating valve group 1 (3) includes a accumulator drain outlet manual shut-off valve 1 (11), a accumulator drain outlet electric actuator 1 (12), a accumulator drain outlet electric shut-off valve 1 (13), and a accumulator drain bypass manual shut-off valve 1 (14). There are two accumulator drain outlet manual shut-off valves 1 (11), which are respectively located on the front and rear sides of the accumulator drain outlet electric shut-off valve 1 (13). The accumulator drain outlet electric shut-off valve 1 (13) and the two accumulator drain outlet manual shut-off valves 1 (11) are all located on the branch pipe 1 (31). The accumulator drain outlet electric shut-off valve 1 (13) is connected to the accumulator drain outlet electric actuator 1 (12). The accumulator drain bypass manual shut-off valve 1 (14) is located on the drain bypass 1 (35) which is connected in parallel with the branch pipe 1 (31).

3. A saturated steam accumulator condensate recovery system according to claim 1 or 2, characterized in that: The second regulating valve group (4) for the accumulator drain outlet includes a second manual shut-off valve (15) for the accumulator drain outlet, a second electric actuator (16) for the accumulator drain outlet, a second electric shut-off valve (17) for the accumulator drain outlet, and a second manual shut-off valve (18) for the accumulator drain bypass. There are two second manual shut-off valves (15) for the accumulator drain outlet. The two second manual shut-off valves (15) for the accumulator drain outlet are respectively located on the front and rear sides of the second electric shut-off valve (17) for the accumulator drain outlet. The second electric shut-off valve (17) for the accumulator drain outlet and the two second manual shut-off valves (15) for the accumulator drain outlet are both located on the second branch pipe (32). The second electric shut-off valve (17) for the accumulator drain outlet is connected to the second electric actuator (16) for the accumulator drain outlet. The second manual shut-off valve (18) for the accumulator drain bypass is located on the second drain bypass (36) connected in parallel with the second branch pipe (32).

4. A saturated steam accumulator condensate recovery system according to claim 1 or 2, characterized in that: The drainage pipe (5) is also equipped with a manual shut-off valve (19) before the hot water pump, a check valve (30), a manual shut-off valve (20) after the hot water pump, and a flow meter (21) in sequence. The hot water pump (6) is located between the manual shut-off valve (19) before the hot water pump and the check valve (30).

5. A saturated steam accumulator condensate recovery system according to claim 1 or 2, characterized in that: The deaerator regulating valve group 1 (9) includes a deaerator manual shut-off valve 1 (22), a deaerator electric actuator 1 (23), a deaerator electric shut-off valve 1 (24), and a deaerator bypass manual shut-off valve 1 (25). There are two deaerator manual shut-off valves 1 (22), which are respectively located on the front and rear sides of the deaerator electric shut-off valve 1 (24). The deaerator electric shut-off valve 1 (24) and the two deaerator manual shut-off valves 1 (22) are all located on the branch pipe 3 (33). The deaerator electric shut-off valve 1 (24) is connected to the deaerator electric actuator 1 (23). The deaerator bypass manual shut-off valve 1 (25) is located on the deaerator bypass 1 (37) which is connected in parallel with the branch pipe 3 (33).

6. A saturated steam accumulator condensate recovery system according to claim 1 or 2, characterized in that: The deaerator regulating valve group two (10) includes a deaerator manual shut-off valve two (26), a deaerator electric actuator two (27), a deaerator electric shut-off valve two (28), and a deaerator bypass manual shut-off valve two (29). There are two deaerator manual shut-off valves two (26), which are respectively located on the front and rear sides of the deaerator electric shut-off valve two (28). The deaerator electric shut-off valve two (28) and the two deaerator manual shut-off valves two (26) are all located on the branch pipe four (34). The deaerator electric shut-off valve two (28) is connected to the deaerator electric actuator two (27). The deaerator bypass manual shut-off valve two (29) is located on the deaerator bypass two (38) which is connected in parallel with the branch pipe four (34).

7. A saturated steam accumulator condensate recovery system according to claim 1 or 2, characterized in that: The diameter of the drainage pipe (5) is (80) mm.

8. A saturated steam accumulator condensate recovery system according to claim 1 or 2, characterized in that: The drainage pipe (5) is also equipped with a pressure regulating valve, a flow regulating valve and a temperature sensor.

9. A saturated steam accumulator condensate recovery system according to claim 1 or 2, characterized in that: Both the first deaerator (7) and the second deaerator (8) are connected to the demineralized water supply device.

10. A saturated steam accumulator condensate recovery system according to claim 9, characterized in that: The accumulator drain outlet regulating valve group one (3), the accumulator drain outlet regulating valve group two (4), the deaerator regulating valve group one (9), the deaerator adjusting valve group two (10), the hot water pump (6), and the demineralized water supply device are all connected to the control system.

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