Buffer water storage system for steam condensate water
By using a steam condensate buffer storage system and employing level gauges and automatic valve regulation technology, the problem of condensate collection tank level fluctuations has been solved, achieving stable water supply and safe production.
Patent Information
- Application Number
- CN202520077427.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Fluctuations in the liquid level of the condensate collection tank lead to unstable water pressure, affecting the normal operation of the steam condensate system. Furthermore, frequent manual operation results in resource waste and safety hazards.
Design a steam condensate buffer storage system, including a collection tank, a buffer tank, a sludge collection tank and a drain pump. The liquid level is monitored in real time by a level gauge, and the water volume is automatically adjusted by a buffer valve, a return valve and a solenoid valve to avoid the liquid level being too high or too low, so as to achieve a stable water supply.
It effectively stabilized the water supply of the condensate system, avoided production abnormalities caused by liquid level fluctuations, reduced the frequency of manual operation, and lowered the risk of equipment damage and water waste.
Smart Images
Figure CN223882789U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to condensate water storage technical field, especially a kind of buffer water storage system of steam condensate water. BACKGROUND
[0002] In the process of textile production chinlon polymerization, steam condensate water is collected for recycling, which is cooled by heat conversion, and then collected. In the process of polymerization, steam condensate water is also discharged. To reduce water consumption, the condensate water is pumped back to the condensate water pipe network in the factory for reuse. This maximizes the use of steam condensate water heat, saving energy and reducing consumption, and improving economic efficiency.
[0003] However, in production, condensate water is constantly collected and cooled, and the amount of condensate water collected is difficult to stabilize and balance, resulting in large fluctuations in water pressure in the condensate water system pipe network, which can also cause unstable water delivery of the steam condensate water pump, and the water delivery volume is fast or slow. Therefore, it is necessary to collect condensate water in advance and then pressurize it into the production water delivery pipe network.
[0004] The liquid level of the condensate water collection tank changes with the collection speed of the condensate water, causing the liquid level in the condensate water collection tank to fluctuate, making it difficult to stabilize water supply. When the liquid level in the collection tank is high, it will cause the upstream condensate water collection pipeline to be not smooth, and the steam condensate water collection and drainage of the entire chinlon polymerization will fail, causing water hammer in the steam pipeline, which can cause production interruption in the front end of the water-consuming pelletizer, posing a safety risk and economic loss to chinlon polymerization production. When the water level in the condensate water collection tank is low, the subsequent water pump may be idle, causing damage to the water delivery pump at the back end.
[0005] The current method is to manually operate frequently. When the level is high, the operator needs to manually open the drain valve of the condensate water collection tank to drain water, causing waste of water resources. When the water level in the condensate water collection tank is too low, the water outlet pump needs to be closed, and after a few minutes, the liquid level in the condensate water collection tank rises again to start the water outlet pump. Frequent personnel operation is required, which consumes labor, and frequent operation by operators can cause internal leakage of valves, posing a safety hazard to production.
[0006] Therefore, the utility model designs a steam condensate water buffer water storage system to solve the above problems. UTILITY MODEL CONTENTS
[0007] The utility model discloses a buffer water storage system of steam condensate, and the pipe network system can adjust and buffer the condensate automatically, can avoid extreme fluctuation of the liquid level of the condensate collection tank, can supplement water in time when the liquid level is low, can temporarily store the excess water in the buffer tank when the internal liquid level is high, can provide enough space for the collection tank, can conveniently collect the condensate of the upstream, can avoid the condensate of the upstream to be detained, can effectively avoid abnormal production, and can improve the water stability in the collection tank.
[0008] The utility model is realized as follows: a buffer water storage system of steam condensate, comprising:
[0009] The collection tank, the buffer tank, the sewage collecting tank and the water pump are arranged.
[0010] The collection tank is a closed storage tank, and a liquid level meter is arranged outside the collection tank.
[0011] The buffer tank is also a closed tank body, a buffer valve is arranged at the inlet section of the buffer tank, the buffer valve is communicated with the bottom of the collection tank, a backflow valve is further arranged at the outlet end of the buffer valve, and the backflow valve is further communicated with the top of the inner cavity of the collection tank.
[0012] A sewage collecting tank is further arranged at the bottom of the collection tank, and the collection tank and the sewage collecting tank are an integral structure and are communicated with each other, and the bottom of the sewage collecting tank is also communicated with the buffer valve through a pipeline.
[0013] The sewage outlet of the sewage collecting tank is connected with a water pump and a water drain valve, and the water outlet of the water pump is communicated with an external water supply pipe network.
[0014] The liquid level meter is further connected with the water pump, the buffer valve and the backflow valve in data.
[0015] Further, the water inlet end of the buffer valve is further connected with a buffer maintenance valve and a sewage valve through a tee joint, the buffer valve is communicated with the bottom of the inner cavity of the collection tank through the buffer maintenance valve, and the buffer valve is communicated with the bottom of the inner cavity of the sewage collecting tank through the sewage valve.
[0016] The sewage valve is a tee joint valve, and a sewage outlet is further arranged on the sewage valve, and the sewage outlet of the sewage valve is communicated with a sewage pipeline.
[0017] Further, the buffer tank is arranged above the collection tank, and the height difference between the buffer tank and the collection tank is between 3-8 meters.
[0018] An air exhaust valve is further arranged at the top of the buffer tank, and the air exhaust valve is a one-way valve.
[0019] The pressure in the collection tank is kept at 0.1MPA.
[0020] Further, the buffer valve, sewage valve, backflow valve and drain valve are all solenoid valves.
[0021] Further, the bottom of the collecting tank is also connected with a standby pump and a standby valve, and the water outlet of the standby valve also communicates with the external water supply network.
[0022] Further, the bottom of the liquid level meter is also provided with a liquid level maintenance valve.
[0023] The top and bottom of the liquid level meter are each provided with a liquid level communication valve, the communication valve at the top of the liquid level meter communicates with the top of the inner cavity of the collecting tank, and the communication valve at the bottom of the liquid level meter communicates with the bottom of the inner cavity of the collecting tank.
[0024] The beneficial effects of the utility model are as follows: 1. The utility model realizes real-time monitoring of the liquid level in the collecting tank through the liquid level meter, and uses the liquid level information as the control basis of the buffer valve and backflow valve, so that the control is more intuitive and convenient, the operation is more accurate, and the situation that the liquid level in the collecting tank is too high is effectively avoided.
[0025] 2. The device increases the buffer tank, when the liquid level is high, the buffer valve drains water into the buffer tank through the buffer maintenance valve and sewage valve double channels, and when the water flow is too large, the sewage valve can directly drain the water, so that the operation is more flexible, and the situation that the buffer tank and collecting tank are full at the same time is avoided.
[0026] 3. Through the buffer tank, the situation that the liquid level in the collecting tank is too high is avoided, when the liquid level is too low, the water in the buffer tank is returned to the collecting tank again through the backflow valve, the drain pump does not need to be closed, the trouble of repeated operation is avoided, and the situation that the valve and drain pump are easily damaged due to frequent closing is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0027] The utility model will be further described in connection with the embodiments with reference to the drawings.
[0028] Figure 1 It is a whole structure schematic view of the utility model.
[0029] In the drawings, the component list represented by each sign is as follows:
[0030] 1-collecting tank, 11-liquid level meter, 12-liquid level maintenance valve, 13-liquid level communication valve, 2-buffer tank, 21-buffer valve, 22-backflow valve, 23-buffer maintenance valve, 3-collecting tank, 31-sewage valve, 4-drain pump, 41-drain valve, 42-standby pump, 43-standby valve. DETAILED DESCRIPTION
[0031] Please refer to Figure 1The utility model provides a kind of buffer water storage system of steam condensate, to better understand the above technical solution, the above technical solution will be explained in detail in the following by combining with the drawings and specific embodiments of the specification.
[0032] In a specific embodiment of the technical scheme of the utility model:
[0033] It includes collection tank 1, buffer tank 2, sewage tank 3 and drainage pump 4;
[0034] Collection tank 1 is closed storage tank, and the outside of collection tank 1 is provided with liquid level meter 11; the bottom of liquid level meter 11 is further provided with liquid level maintenance valve 12; there is also a connecting pipe on the top of collection tank 1, which is connected with the condensate water collection pipe network upstream, so as to facilitate the collection of unstable condensate water upstream through collection tank 1, and to convert unstable condensate water into stable delivery system through more stable collection tank 1, to supply downstream water pipe network.
[0035] The top and bottom of liquid level meter 11 are each provided with a liquid level communication valve 13, and the communication valve 13 at the top of liquid level meter 11 is in communication with the top of the inner cavity of collection tank 1, and the communication valve 13 at the bottom of liquid level meter 11 is in communication with the bottom of the inner cavity of collection tank 1.
[0036] So that liquid level meter 11 can display the liquid level outside collection tank 1, which is convenient for manual inspection, and can also conveniently send liquid level information to the controller.
[0037] Buffer tank 2 is also a closed tank body, and the inlet section of buffer tank 2 is provided with buffer valve 21, which is in communication with the bottom of collection tank 1; the outlet end of buffer valve 21 is further provided with backflow valve 22, which is also in communication with the top of the inner cavity of collection tank 1; the water inlet end of buffer valve 21 is further connected with buffer maintenance valve 23 and sewage valve 31 through a tee joint; buffer valve 21 is in communication with the bottom of the inner cavity of collection tank 1 through buffer maintenance valve 23, and buffer valve 21 is in communication with the bottom of the inner cavity of sewage tank 3 through sewage valve 31.
[0038] Sewage valve 31 is a tee joint valve, and sewage valve 31 is further provided with a blowdown port, which is in communication with the sewage pipeline. The function of sewage tank 3 is to collect impurities at the bottom of collection tank 1, and the initial water flow of sewage valve 31 is discharged through the blowdown port, so as to avoid the continuous circulation of impurities in the water delivery pipe network, and the impurities in the condensate water are generally very few, and only appear after a long period of sedimentation. The blowdown port is used less, so in this water flow pipe network, sewage tank 3 serves as another water flow channel of buffer tank 2, and sewage valve 31 can be used as an emergency drain valve and also can play a role in adjusting the amount of water discharged by collection tank 1.
[0039] Collection tank 1 is further provided with sewage tank 3, and collection tank 1 and sewage tank 3 are an integral structure in communication with each other, and the bottom of sewage tank 3 is also in communication with buffer valve 21 through a pipeline.
[0040] The drain outlet of the collecting tank 3 is connected with a drain pump 4 and a drain valve 41; the water outlet of the drain pump 4 is communicated with an external water supply pipe network; the bottom of the collecting tank 3 is further connected with a standby pump 42 and a standby valve 43, and the water outlet of the standby valve 43 is also communicated with the external water supply pipe network.
[0041] The liquid level meter 11 is further connected with the drain pump 4, the buffer valve 21 and the backflow valve 22 in data. The buffer valve 21, the sewage valve 31, the backflow valve 22 and the drain valve 41 are all electromagnetic valves. A PLC controller can be arranged in the device, and the liquid level information and the valves and the drain pump 4 are controlled by the controller.
[0042] The buffer tank 2 is above the collecting tank 1, and the height difference between the buffer tank 2 and the collecting tank 1 is between 3-8 meters; a drain valve is further arranged at the top of the buffer tank 2, and the drain valve is a one-way valve; the collecting tank 1 maintains a pressure of 0.1MPA.
[0043] Such position setting has a special effect, so that the buffer tank 2 and the collecting tank 1 do not need a water pump for conveying; the collecting tank 1 itself maintains a pressure of 0.1MPA for a long time, and when the buffer tank 2 is in an empty tank state, the pressure in the collecting tank 1 will automatically press the water flow into the buffer tank 2; when the buffer valve 21 is opened, the water pressure in the buffer tank 2 is consistent with that in the collecting tank 1 at this time, and when the backflow valve 22 is opened, the water pressure in the collecting tank 1 is consistent with that in the buffer tank 2 at this time, and the buffer tank 2 is higher than the collecting tank 1, so the water flow will flow back to the collecting tank 1, without the need of using a water pump for conveying.
[0044] Only when water is sent to the buffer tank 2, the drain valve at the top of the buffer tank 2 needs to be opened, and after the buffer tank 2 is filled, the drain valve needs to be closed, so that the buffer tank 2 maintains the same water pressure as the collecting tank 1. The operation of the water flow and the drain valve is also completed by the PLC controller, and such control mode and system belong to the conventional control system of the water supply pipe network.
[0045] It should be noted that:
[0046] 1. The flow rates of the sewage valve 31 and the buffer maintenance valve 23 are different, and their functions are also different, but they can be more flexible in collecting the condensate water in the buffer tank 2, that is, they can be opened at the same time or only one of them can be opened according to the needs. As for the selection of the opening mode, the collection speed of the condensate water upstream of the tank 1 is used as the basis, that is, the detection of the liquid level meter 11 in the tank 1 is used as the criterion. If the liquid level rises too fast, the sewage valve 31 and the buffer maintenance valve 23 are opened at the same time. If the rising speed is slow, only one of them can be opened. Therefore, the flow rate of the buffer valve 21 is the largest, which can ensure that the two valves can quickly collect water when they are synchronized. 2. The function of the buffer maintenance valve 23 is to control the main conveying pipeline of the buffer tank 2 in the control box, which can be manually closed for pipeline maintenance. It is usually in an open state, which is convenient for the buffer valve 21 to control the pipeline network. When maintenance is needed, the buffer maintenance valve 23 can be closed. 3. The same liquid level maintenance valve 12 is used for the maintenance of the liquid level meter 11. It is usually in a closed state and is a manual valve. The same liquid level communication valve 13 is also a manual valve and is in an open state. When the liquid level meter 11 is maintained, the liquid level communication valve 13 is manually closed.
[0047] In use, the buffer valve 21 and the backflow valve 22 are usually in a closed state. When the upstream condensate water flow is too large, when the liquid level in the tank 1 rises too fast, and the liquid level meter 11 sends a high-level prompt, the buffer valve 21 is opened to convey the condensate water to the buffer tank 2 for storage.
[0048] When the liquid level meter 11 continuously sends a high-level prompt for 30 seconds without interruption, the buffer valve 21, the buffer maintenance valve 23, and the sewage valve 31 are opened at the same time. The buffer maintenance valve 23 is in an open state, and the water in the tank 1 is stored through the buffer valve 21. Avoiding the liquid level in the tank 1 from being too high.
[0049] When the high-level prompt of the liquid level meter 11 lasts for ten minutes, the sewage valve 31 is opened to directly discharge the water flow into the sewage pipe to avoid the liquid level from being too high.
[0050] When the high-level prompt signal of the liquid level meter disappears for 5 minutes, the buffer valve 21, the buffer maintenance valve 23, and the sewage valve 31 are closed.
[0051] When the liquid level in the tank 1 rapidly decreases, the liquid level meter 11 sends a low-level signal prompt, and the controller controls the buffer valve backflow valve 22 to be opened. The buffer valve 21 is in a closed state. Until the low-level prompt of the liquid level meter 11 disappears for 3 minutes, the backflow valve 22 is closed.
[0052] The buffer tank 2 is designed to store water for 30 minutes, when the low liquid level indicator 11 sends a signal for more than 30 minutes, the drainage pump 4 and the standby pump 42 are closed, and a warning is sent, the warning device can be an audible and light alarm, which is a standard warning device equipped on the PLC controller, and is convenient for prompting the staff to repair.
[0053] Although the specific embodiments of the present application are described above, those skilled in the art should understand that the specific embodiments described are only illustrative, and are not intended to limit the scope of the present application, and equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present application should be covered within the scope of the claims of the present application.
Claims
1. A buffer storage system for steam condensate water, characterized in that The utility model relates to a sewage collecting system, which comprises a collecting tank (1), a buffer tank (2), a sewage collecting tank (3) and a drainage pump (4). The collecting tank (1) is a closed storage tank, and a liquid level meter (11) is arranged on the outside of the collecting tank (1). The buffer tank (2) is also a closed tank body, and a buffer valve (21) is arranged on the inlet section of the buffer tank (2), the buffer valve (21) is communicated with the bottom of the collecting tank (1), and a backflow valve (22) is further arranged on the outlet end of the buffer valve (21), and the backflow valve (22) is further communicated with the top of the inner cavity of the collecting tank (1). The bottom of the collecting tank (1) is further provided with the sewage collecting tank (3), and the collecting tank (1) and the sewage collecting tank (3) are an integral structure in communication with each other, and the bottom of the sewage collecting tank (3) is also communicated with the buffer valve (21) through a pipeline. The sewage outlet of the sewage collecting tank (3) is connected with a drainage pump (4) and a drainage valve (41), and the water outlet of the drainage pump (4) is communicated with an external water supply pipe network. The liquid level meter (11) is further connected with the drainage pump (4), the buffer valve (21) and the backflow valve (22) in data. The water inlet end of the buffer valve (21) is further connected with a buffer maintenance valve (23) and a sewage valve (31) through a tee joint, the buffer valve (21) is communicated with the bottom of the inner cavity of the collecting tank (1) through the buffer maintenance valve (23), and the buffer valve (21) is communicated with the bottom of the inner cavity of the sewage collecting tank (3) through the sewage valve (31).
2. A buffer storage system for steam condensate water according to claim 1, characterized in that: The sewage valve (31) is a tee valve, the sewage valve (31) is further provided with a sewage discharge port, and the sewage discharge port of the sewage valve (31) is communicated with a sewage pipeline. The buffer tank (2) is above the collecting tank (1), and the height difference between the buffer tank (2) and the collecting tank (1) is between 3-8 meters.
3. A buffer storage system for steam condensate water according to claim 1, characterized in that: The top of the buffer tank (2) is further provided with an exhaust valve, and the exhaust valve is a one-way valve. The collecting tank (1) maintains a pressure of 0.1MPA. The buffer valve (21), the sewage valve (31), the backflow valve (22) and the drainage valve (41) are all electromagnetic valves.
4. The steam condensate surge tank system of claim 1, wherein: The bottom of the sewage collecting tank (3) is further connected with a standby pump (42) and a standby valve (43), and the water outlet of the standby valve (43) is also communicated with the external water supply pipe network.
5. The steam condensate surge tank system of claim 1, wherein: The bottom of the liquid level meter (11) is further provided with a liquid level maintenance valve (12).
6. A buffer storage system for steam condensate water as claimed in claim 1, wherein: The top and bottom of the liquid level meter (11) are each provided with a liquid level communication valve (13), the communication valve (13) on the top of the liquid level meter (11) is communicated with the top of the inner cavity of the collecting tank (1), and the communication valve (13) on the bottom of the liquid level meter (11) is communicated with the bottom of the inner cavity of the collecting tank (1).