Condensate water recovery system for cigarette factory
By designing the condensate recovery system in the cigarette factory, using multi-channel soda heat exchanger and flash steam recovery pipelines, the overall recycling and storage of condensate and flash steam is achieved, which solves the problems of low condensate recovery rate and imbalance in water volume, and improves the The energy-saving and emission reduction effect of the system.
Patent Information
- Application Number
- CN202420794622.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The low recovery rate of condensate in cigarette factories leads to waste of steam, condensate and waste heat, affecting energy conservation and emission reduction, and traditional recycling methods lead to imbalance in water and heat, resulting in energy waste.
A cigarette factory condensate recovery system was designed. Through the combination of the main condensate recovery tank and the secondary condensate buffer tank, a multi-channel soda heat exchanger and flash steam recovery pipeline are used to realize the overall recycling and storage of condensate and flash steam. , ensure the balance of water and heat, and use condensate on site through the workshop water pipes.
It realizes efficient recycling and utilization of condensate water, avoids water imbalance and energy waste, reduces the failure rate of condensate water recycling equipment, and improves the energy-saving and emission reduction effect of the system.
Smart Images
Figure CN222143024U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steam condensate recovery, in particular to a condensate recovery system for a cigarette factory. Background Art
[0002] Steam is mostly used in the silk-making process equipment and central air-conditioning in cigarette factories. At present, condensate recovery is usually set up on the silk-making workshop process equipment with a steam trap pump group to directly recover condensate. The low-temperature condensate generated by the air-conditioning heat exchange also uses a steam trap pump group, and then all condensate is transported to the boiler room for boiler use. Since the working mode of the steam trap pump has a great impact on the silk-making and drying process, in order to ensure the normal operation of the four equipment, sometimes the condensate generated by the silk drying machine is directly discharged to the ditch, resulting in the waste of this high-temperature condensate, increasing the energy consumption of the boiler, and at the same time, the workshop will also produce a large amount of flash steam to affect the surrounding environment. Some use open water tanks near the silk drying machine to recover its condensate. Although it effectively solves the problem of excessive moisture in tobacco caused by poor drainage of the silk drying machine, due to the high temperature of this condensate, flash steam will emerge from the inside of the water tank, affecting the surrounding environment and causing heat waste of flash steam. In order to eliminate this flash steam, some use normal temperature water for cooling treatment. Although the flash evaporation phenomenon is eliminated, the introduction of new water causes an imbalance in the water volume of the system, which is ultimately a waste. Since the gas boiler with a secondary economizer will produce cooling water of about 50% of the steam production, the temperature is usually 60°C, plus the silk-making condensate, air-conditioning condensate, and steam pipeline condensate, the water volume of the thermal system is unbalanced. The boiler's water demand is less than the condensate plus the boiler's medium-temperature cooling water volume, and the excess high-quality water is discharged, resulting in energy waste. The condensate discharged from the heating heat exchanger unit and the air-conditioning unit is combined with the silk-making line and then recycled to the boiler room. The back pressure affects each other. In order to ensure the normal and stable operation of other steam-using equipment such as the heating heat exchanger unit and the air-conditioning unit, the condensate can only be discharged directly. Direct discharge causes systemic failures in the condensate recovery equipment, and the condensate recovery rate is low, resulting in serious waste of steam, condensate, and waste heat, which is not conducive to energy conservation and emission reduction. Utility Model Content
[0003] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a condensate recovery system for a cigarette factory, which recovers, stores and utilizes the condensate as a whole through the system layout pipeline, solves the problem of water volume and heat balance, and further achieves energy conservation and emission reduction. Specifically, the technical solution of the utility model to achieve the above-mentioned purpose is:
[0004] A condensate recovery system for a cigarette factory, comprising production equipment, air conditioning equipment, a main condensate recovery water tank, and a main condensate buffer water tank; the condensate water outlets of the production equipment and the air conditioning equipment are connected to the condensate water inlet of the main condensate recovery water tank; the main condensate recovery water tank outlet is provided with a main recovery pump group, and the main recovery pump group is connected to the main condensate buffer water tank inlet; the condensate in the main condensate buffer water tank is used in a boiler room; each connecting pipe is provided with a corresponding switch valve; and further comprising:
[0005] A secondary condensate buffer water tank A, a multi-channel steam-water heat exchanger, a desalted water replenishment pipeline and a flash steam recovery pipeline; a branch is arranged between the main recovery pump group and the water inlet of the main condensate buffer water tank, leading to the water inlet of the secondary condensate buffer water tank A; the water outlet of the secondary condensate buffer water tank A is provided with a secondary recovery pump group A, and the secondary recovery pump group A is connected to the condensate reuse pipeline; the desalted water replenishment pipeline is respectively connected to the secondary condensate buffer water tank A and the main condensate recovery water tank; the flash steam discharge port of the production equipment is connected to the flash steam recovery pipeline; the flash steam recovery pipeline is connected to the main condensate recovery water tank through the multi-channel steam-water heat exchanger, and the desalted water replenishment pipeline is connected to the main condensate recovery water tank through the multi-channel steam-water heat exchanger, and the flash steam in the flash steam recovery pipeline is heat exchanged with the desalted water through the multi-channel steam-water heat exchanger to form condensed water that enters the main condensate recovery water tank; the main recovery pump group and the secondary recovery pump group A respectively include a water pump, a stop valve, a check valve and a pressure gauge.
[0006] Furthermore, it also includes a steam-water heat exchanger A and a heating return water channel; a branch is arranged between the flash steam recovery pipe and the water inlet of the multi-channel steam-water heat exchanger, which passes through the steam-water heat exchanger A and returns to the main condensate recovery water tank; the flash steam in the flash steam recovery pipe and the return water in the heating return water channel are heat exchanged through the steam-water heat exchanger A to form condensed water, which enters the main condensate recovery water tank; the main condensate recovery water tank is provided with a flash steam exhaust pipe, which passes through the multi-channel steam-water heat exchanger and the desalted water to form condensed water, which flows back to the main condensate recovery water tank together with the condensed water formed in the flash steam recovery pipe.
[0007] Furthermore, the flash steam recovery pipeline is also provided with an external discharge channel, and the external discharge channel is provided with a pressure control valve.
[0008] Furthermore, it also includes a secondary condensate cache water tank B, a branch leading to the water inlet of the secondary condensate cache water tank B is arranged between the main recovery pump group and the water inlet of the main condensate cache water tank, and the water outlet of the secondary condensate cache water tank B is connected to the water inlet of the main condensate recovery water tank; the secondary condensate cache water tank B is provided with a workshop water pipeline.
[0009] Furthermore, it also includes a secondary condensate recovery water tank, a secondary recovery pump group B, a condensate recovery pipe of the heat exchanger unit, a steam-water heat exchanger B and a heating return water channel; the condensate recovery pipe of the heat exchanger unit is connected to the secondary condensate recovery water tank, and the secondary recovery pump group B sends the condensate in the secondary condensate recovery water tank to the main condensate buffer water tank; the secondary condensate recovery water tank is provided with a flash steam exhaust pipe, and the flash steam generated in the secondary condensate recovery water tank is heat exchanged with the return water in the heating return water channel to form condensate that flows back to the secondary condensate recovery water tank; the secondary recovery pump group B includes a water pump, a stop valve, a check valve and a pressure gauge.
[0010] Furthermore, it also includes a boiler water pump group, a filter, a water quality detector, and a deaerator; the water inlet of the boiler water pump group is connected to the main condensate cache water tank, and the water outlet is connected to the water inlet of the filter, the water outlet of the filter is connected to the water inlet of the water quality detector, and the water outlet of the water quality detector is connected to the water inlet of the deaerator. The boiler water pump group sends the water in the main condensate cache water tank to the deaerator for deoxygenation and then supplies it to the boiler.
[0011] Furthermore, an electric drain valve and a flow meter are provided between the water quality detector and the deaerator; the boiler water pump group includes a water pump, a stop valve, a check valve and a pressure gauge.
[0012] Furthermore, it also includes a main steam drain pipe of the pipe gallery, a sub-cylinder drain pipe, a grid main steam condensate pipe and a heating heat exchanger drain pipe; the main steam drain pipe of the pipe gallery and the sub-cylinder drain pipe are merged and connected to the water inlet of the main condensate recovery tank; the main steam condensate pipe of the grid is merged with the condensate of the production equipment and connected to the water inlet of the main condensate recovery tank; the heating heat exchanger drain pipe is merged with the condensate of the air-conditioning equipment and connected to the water inlet of the main condensate recovery tank; and a number of drain valves are arranged on the grid main steam condensate pipe.
[0013] The condensate drainage pipelines of the production equipment 1 and the air conditioning equipment 2 recycle the condensate into the main condensate recovery water tank 3. The entire transportation process is a one-way flow, which is stable and reliable without the influence of steam resistance. The flash steam recovery pipeline 9 cools the flash steam generated by the high-temperature condensate through the heat exchanger to form condensate and recycle it into the main condensate recovery water tank 3. In winter, due to the need for heating, the recovered flash steam and the return water in the heating return water channel 13 are heat exchanged through the steam-water heat exchanger A12, and the workshop heating return water is heated at the same time; while the flash steam generated in the transition season is heat exchanged with the desalted water passed into the main condensate recovery water tank 3 through the multi-channel steam-water heat exchanger 7. When the boiler cannot use up the condensate, the main condensate recovery water tank 3 discharges part of the condensate into the auxiliary condensate buffer water tank B15, and uses it as workshop water on the spot through the workshop water pipeline 16; when the liquid level in the auxiliary condensate buffer water tank B15 is too high, the condensate returns to the main condensate recovery water tank 3 for use elsewhere. The auxiliary condensate recovery water tank 17 is used to recover the condensate in the heating return water channel 21; the flash steam generated by it heats the return water in the heating return water channel 21 through the steam-water heat exchanger B20, and at the same time, it turns into condensate and flows back into the auxiliary condensate recovery water tank 17. The main condensate buffer water tank 4 is used to control the constant liquid level inside the deaerator 25 to provide a stable guarantee for the deoxygenation effect of the deaerator 25. The condensate inside the main condensate buffer water tank 4 is transported to the filter 23 through the boiler water pump group 22 for filtration. The filtered condensate directly enters the deaerator 25 for boiler use if the PH and conductivity are qualified. If the test is unqualified, the steam trap is opened to discharge the condensate.
[0014] Compared with the prior art, the utility model has the following advantages:
[0015] (1) The present invention changes the traditional condensate recovery method, so that the high-temperature condensate is converted into saturated water, and the formed flash steam is recovered by separate pipes, changing the two-phase flow of condensate and flash steam in the condensate pipe into a separate saturated water flow and flash steam flow, that is, the two-phase flow is converted into a single-phase flow. The resistance in the single-phase flow pipeline is small, and no water hammer occurs. Flash steam eliminates flash evaporation by heat exchange with normal temperature desalted water or heating return water, which fully benefits the remaining heat to heat the cold source and avoid flash evaporation discharge. The condensate of the silk-making equipment and the pipeline drainage are recovered by a multi-tube separate arrangement, and the high and low pressure condensate are recovered separately to avoid mutual interference caused by different back pressures.
[0016] (ii) Multiple condensate water tanks are set up for buffering and regulation. At the same time, the condensate water is used for the cleaning of the rubber cylinders for rolling and packaging, water for the toilet, water for silk making and cleaning, water for showers and water for swimming pools through the water pipes in the workshop. This achieves a balance in the water volume of the system and solves the problem that the water demand of boilers in cigarette factories is generally less than the amount of condensate recovered. All high-quality condensate water is reused to avoid energy waste.
[0017] (3) The flash steam generated by the production equipment is heat exchanged with desalted water at room temperature in summer, and can also be heat exchanged with low-temperature heating return water in winter to recover the flash steam waste heat for heating heating return water, forming a variety of flash steam recovery and utilization methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the system connection method of the utility model;
[0019] In the figure:
[0020] 1—production equipment, 2—air conditioning equipment, 3—main condensate recovery water tank, 4—main condensate buffer water tank, 5—main recovery pump group, 6—secondary condensate buffer water tank A, 7—multi-channel steam-water heat exchanger, 8—demineralized water replenishment pipeline, 9—flash steam recovery pipeline, 10—secondary recovery pump group A, 11—condensate reuse pipeline, 12—steam-water heat exchanger A, 13—heating return water channel, 14—external discharge channel, 15—secondary condensate buffer water tank B, 16—workshop water pipeline, 17—auxiliary condensate recovery water tank, 18—auxiliary recovery pump group B, 19—heat exchange unit condensate recovery pipeline, 20—steam-water heat exchanger B, 21—heating return water channel, 22—boiler water pump group, 23—filter, 24—water quality detector, 25—deaerator, 26—pipe gallery main steam drain pipeline, 27—steam cylinder drain pipeline, 28—grid main steam condensate pipeline, 29—heating heat exchanger drain pipeline. DETAILED DESCRIPTION
[0021] like Figure 1 As shown, the embodiments of the utility model are as follows:
[0022] A condensate recovery system for a cigarette factory comprises production equipment 1, air conditioning equipment 2, a main condensate recovery water tank 3, a main condensate buffer water tank 4, an auxiliary condensate buffer water tank A6, a multi-channel steam-water heat exchanger 7, a desalted water replenishment pipeline 8 and a flash steam recovery pipeline 9, a steam-water heat exchanger A12, a heating return water channel 13, an auxiliary condensate buffer water tank B15, an auxiliary condensate recovery water tank 17, an auxiliary recovery pump group B18, a heat exchanger unit condensate recovery pipeline 19, a steam-water heat exchanger B20 and a heating return water channel 21, a boiler water pump group 22, a filter 23, a water quality detector 24, a deaerator 25, a pipe gallery main steam drain pipeline 26, a sub-cylinder drain pipeline 27, a grid main steam condensate pipeline 28 and a heating heat exchanger drain pipeline 29.
[0023] The condensate outlets of the production equipment 1 and the air conditioning equipment 2 are connected to the condensate inlet of the main condensate recovery water tank 3; the main condensate recovery water tank 3 is provided with a main recovery pump group 5 at the outlet, and the main recovery pump group 5 has three identical pump groups in parallel to facilitate adapting to different flow rates. The main recovery pump group 5 is connected to the inlet of the main condensate buffer water tank 4; the condensate in the main condensate buffer water tank 4 is used in the boiler room; corresponding switch valves are provided on each connecting pipe.
[0024] Two branches are arranged between the main recovery pump group 5 and the water inlet of the main condensate water buffer water tank 4, one leading to the water inlet of the auxiliary condensate water buffer water tank A6. The other leading to the water inlet of the auxiliary condensate water buffer water tank B15. The water outlet of the auxiliary condensate water buffer water tank A6 is provided with an auxiliary recovery pump group A10, and the auxiliary recovery pump group has two pumps in parallel. The auxiliary recovery pump group A10 is connected to the condensate water reuse pipeline 11. The water outlet of the auxiliary condensate water buffer water tank B15 is connected to the water inlet of the main condensate water recovery water tank 3; the auxiliary condensate water buffer water tank B15 is provided with a workshop water pipeline 16, and a flow meter is arranged on the pipeline. The main recovery pump group 5 and the auxiliary recovery pump group A10 respectively include a water pump, a stop valve, a check valve and a pressure gauge. The desalted water replenishment pipeline 8 is respectively connected to the auxiliary condensate water buffer water tank A6 and the main condensate water recovery water tank 3.
[0025] The flash steam discharge port of the production equipment 1 is connected to the flash steam recovery pipe 9; the flash steam recovery pipe 9 is connected to the main condensate recovery water tank 3 through the multi-channel steam-water heat exchanger 7, and the desalted water replenishment pipe 8 is connected to the main condensate recovery water tank 3 through the multi-channel steam-water heat exchanger 7. The flash steam in the flash steam recovery pipe 9 and the desalted water are heat exchanged through the multi-channel steam-water heat exchanger 7 to form condensed water that enters the main condensate recovery water tank 3. The flash steam recovery pipe 9 is also provided with an external discharge channel 14, and the external discharge channel 14 is provided with a pressure control valve. A branch is arranged between the flash steam recovery pipe 9 and the water inlet of the multi-channel steam-water heat exchanger 7, which passes through the steam-water heat exchanger A12 and then returns to the main condensate recovery tank 3; the flash steam in the flash steam recovery pipe 9 and the return water in the heating return water channel 13 are heat exchanged through the steam-water heat exchanger A12 to form condensed water that enters the main condensate recovery tank 3; the main condensate recovery tank 3 is provided with a flash steam exhaust pipe, which passes through the multi-channel steam-water heat exchanger 7 and exchanges heat with desalted water to form condensed water that flows back to the main condensate recovery tank 3 together with the condensed water formed in the flash steam recovery pipe 9.
[0026] The condensate recovery pipe 19 of the heat exchanger unit is connected to the auxiliary condensate recovery water tank 17, and the auxiliary recovery pump group B18 delivers the condensate in the auxiliary condensate recovery water tank 17 to the main condensate buffer water tank 4; the auxiliary condensate recovery water tank 17 is provided with a flash steam exhaust pipe, and the flash steam generated by the auxiliary condensate recovery water tank 17 is heat exchanged with the return water in the heating return water channel 21 to form condensate that flows back to the auxiliary condensate recovery water tank 17; the auxiliary recovery pump group B18 includes a water pump, a stop valve, a check valve and a pressure gauge.
[0027] The water inlet of the boiler water pump group 22 is connected to the main condensate buffer water tank 4, and the water outlet is connected to the water inlet of the filter 23. The water outlet of the filter 23 is connected to the water inlet of the water quality detector 24, and the water outlet of the water quality detector 24 is connected to the water inlet of the deaerator 25. The boiler water pump group 22 sends the water in the main condensate buffer water tank 4 to the deaerator 25 for deoxygenation and then supplies it to the boiler. An electric drain valve and a flow meter are provided between the water quality detector 24 and the deaerator 25; the boiler water pump group 22 includes a water pump, a stop valve, a check valve and a pressure gauge.
[0028] The main steam drain pipe 26 of the pipe gallery is combined with the cylinder drain pipe 27 and connected to the water inlet of the main condensate recovery tank 3; the main steam condensate pipe 28 of the grid is combined with the condensate of the production equipment 1 and connected to the water inlet of the main condensate recovery tank 3; the heating heat exchanger drain pipe 29 is combined with the condensate of the air-conditioning equipment 2 and connected to the water inlet of the main condensate recovery tank 3; a number of drain valves are arranged on the main steam condensate pipe 28 of the grid.
[0029] The condensate drainage pipelines of the production equipment 1 and the air conditioning equipment 2 recycle the condensate into the main condensate recovery water tank 3. The entire transportation process is a one-way flow, which is stable and reliable without the influence of steam resistance. The flash steam recovery pipeline 9 cools the flash steam generated by the high-temperature condensate through the heat exchanger to form condensate and recycle it into the main condensate recovery water tank 3. In winter, due to the need for heating, the recovered flash steam and the return water in the heating return water channel 13 are heat exchanged through the steam-water heat exchanger A12, and the workshop heating return water is heated at the same time; while the flash steam generated in the transition season is heat exchanged with the desalted water passed into the main condensate recovery water tank 3 through the multi-channel steam-water heat exchanger 7. When the boiler cannot use up the condensate, the main condensate recovery water tank 3 discharges part of the condensate into the auxiliary condensate buffer water tank B15, and uses it as workshop water on the spot through the workshop water pipeline 16; when the liquid level in the auxiliary condensate buffer water tank B15 is too high, the condensate returns to the main condensate recovery water tank 3 for use elsewhere. The auxiliary condensate recovery water tank 17 is used to recover the condensate in the heating return water channel 21; the flash steam generated by it heats the return water in the heating return water channel 21 through the steam-water heat exchanger B20, and at the same time, it turns into condensate and flows back into the auxiliary condensate recovery water tank 17. The main condensate buffer water tank 4 is used to control the constant liquid level inside the deaerator 25 to provide a stable guarantee for the deoxygenation effect of the deaerator 25. The condensate inside the main condensate buffer water tank 4 is transported to the filter 23 through the boiler water pump group 22 for filtration. The filtered condensate directly enters the deaerator 25 for boiler use if the PH and conductivity are qualified. If the test is unqualified, the steam trap is opened to discharge the condensate.
[0030] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.
Claims
1. A condensate recovery system for a cigarette factory, comprising production equipment (1), air conditioning equipment (2), a main condensate recovery water tank (3), and a main condensate buffer water tank (4); the condensate outlets of the production equipment (1) and the air conditioning equipment (2) are connected to the condensate inlet of the main condensate recovery water tank (3); the outlet of the main condensate recovery water tank (3) is provided with a main recovery pump group (5), and the main recovery pump group (5) is connected to the inlet of the main condensate buffer water tank (4); the condensate in the main condensate buffer water tank (4) is used in the boiler room; and corresponding switch valves are provided on each connecting pipeline; It is characterized in that Also includes: A secondary condensate buffer water tank A (6), a multi-channel steam-water heat exchanger (7), a desalted water replenishment pipeline (8) and a flash steam recovery pipeline (9); a branch is provided between the main recovery pump group (5) and the water inlet of the main condensate buffer water tank (4), leading to the water inlet of the secondary condensate buffer water tank A (6); the water outlet of the secondary condensate buffer water tank A (6) is provided with a secondary recovery pump group A (10), and the secondary recovery pump group A (10) is connected to the condensate recycling pipeline (11); the desalted water replenishment pipeline (8) is respectively connected to the secondary condensate buffer water tank A (6) and the main condensate recovery water tank (3); the production equipment (1 ) is connected to a flash steam recovery pipe (9); the flash steam recovery pipe (9) is connected to the main condensate recovery water tank (3) via the multi-channel steam-water heat exchanger (7); the desalted water replenishing pipe (8) is connected to the main condensate recovery water tank (3) via the multi-channel steam-water heat exchanger (7); the flash steam in the flash steam recovery pipe (9) and the desalted water are heat exchanged with each other through the multi-channel steam-water heat exchanger (7) to form condensed water which enters the main condensate recovery water tank (3); the main recovery pump group (5) and the auxiliary recovery pump group A (10) respectively include a water pump, a stop valve, a check valve and a pressure gauge.
2. A condensate recovery system for a cigarette factory as claimed in claim 1, Features: It also includes a steam-water heat exchanger A (12) and a heating return water channel (13); a branch is provided between the flash steam recovery pipe (9) and the water inlet of the multi-channel steam-water heat exchanger (7), passing through the steam-water heat exchanger A (12) and returning to the main condensate recovery water tank (3); the flash steam in the flash steam recovery pipe (9) and the return water in the heating return water channel (13) are heat exchanged through the steam-water heat exchanger A (12) to form condensed water, which enters the main condensate recovery water tank (3); the main condensate recovery water tank (3) is provided with a flash steam exhaust pipe, which passes through the multi-channel steam-water heat exchanger (7) and the desalted water to form condensed water, which flows back to the main condensate recovery water tank (3) together with the condensed water formed in the flash steam recovery pipe (9).
3. A condensate recovery system for a cigarette factory as claimed in claim 1 or 2, Features: The flash steam recovery pipeline (9) is also provided with an external discharge channel (14), and the external discharge channel (14) is provided with a pressure control valve.
4. A condensate recovery system for a cigarette factory as claimed in claim 1, Features: It also includes an auxiliary condensate cache water tank B (15), a branch is provided between the main recovery pump group (5) and the water inlet of the main condensate cache water tank (4) leading to the water inlet of the auxiliary condensate cache water tank B (15), and the water outlet of the auxiliary condensate cache water tank B (15) is connected to the water inlet of the main condensate recovery water tank (3); the auxiliary condensate cache water tank B (15) is provided with a workshop water pipeline (16).
5. A condensate recovery system for a cigarette factory as claimed in claim 1, Features: It also includes a secondary condensate recovery water tank (17), a secondary recovery pump group B (18), a heat exchange unit condensate recovery pipe (19), a steam-water heat exchanger B (20) and a heating return water channel (21); the heat exchange unit condensate recovery pipe (19) is connected to the secondary condensate recovery water tank (17), and the secondary recovery pump group B (18) sends the condensate in the secondary condensate recovery water tank (17) to the main condensate buffer water tank (4); the secondary condensate recovery water tank (17) is provided with a flash steam exhaust pipe, and the flash steam generated by the secondary condensate recovery water tank (17) is heat-exchanged with the return water in the heating return water channel (21) to form condensate that flows back into the secondary condensate recovery water tank (17); the secondary recovery pump group B (18) includes a water pump, a stop valve, a check valve and a pressure gauge.
6. A condensate recovery system for a cigarette factory as claimed in claim 1, Features: It also includes a boiler water pump group (22), a filter (23), a water quality detector (24), and a deaerator (25); the water inlet of the boiler water pump group (22) is connected to the main condensate buffer water tank (4), and the water outlet is connected to the water inlet of the filter (23); the water outlet of the filter (23) is connected to the water inlet of the water quality detector (24); the water outlet of the water quality detector (24) is connected to the water inlet of the deaerator (25); the boiler water pump group (22) sends the water in the main condensate buffer water tank (4) to the deaerator (25) for deoxygenation before being used by the boiler.
7. A condensate recovery system for a cigarette factory as claimed in claim 6, Features: An electric drain valve and a flow meter are provided between the water quality detector (24) and the deaerator (25); the boiler water pump group (22) comprises a water pump, a stop valve, a check valve and a pressure gauge.
8. A condensate recovery system for a cigarette factory as claimed in claim 1, Features: It also includes a pipe gallery main steam drain pipe (26), a steam cylinder drain pipe (27), a grid main steam condensate pipe (28) and a heating heat exchanger drain pipe (29); the pipe gallery main steam drain pipe (26) and the steam cylinder drain pipe (27) are combined and connected to the water inlet of the main condensate recovery tank (3); the grid main steam condensate pipe (28) and the condensate of the production equipment (1) are combined and connected to the water inlet of the main condensate recovery tank (3); the heating heat exchanger drain pipe (29) and the condensate of the air-conditioning equipment (2) are combined and connected to the water inlet of the main condensate recovery tank (3); and a plurality of drain valves are arranged on the grid main steam condensate pipe (28).
Citation Information
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