A steam condensate recovery and treatment equipment

Abstract

This utility model discloses a steam condensate recovery and treatment device, including a water storage tank with an inlet; an automatic heating component connected to the water storage tank; a first water level sensor located at the bottom of the water storage tank; a washing tank connected to the water storage tank via a water supply pump; a first temperature sensor and a second water level sensor respectively located on the side wall and bottom of the washing tank, with the second water level sensor connected to the water supply pump; a low-temperature makeup water pump connected to the water storage tank; and a wastewater treatment device with a purified water storage tower, one end of which is connected to the water storage tank via the low-temperature makeup water pump, and the other end connected to the washing tank via a drain pneumatic valve; the first temperature sensor is connected to the drain pneumatic valve. This utility model fully utilizes the waste heat of the recovered steam condensate through the coordinated control of the steam heating regulating valve and the low-temperature makeup water pump; the first temperature sensor ensures a constant water temperature in the washing tank, and the second water level sensor controls the water level in the washing tank, enabling fully automated operation.

Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, and in particular to a device for the recovery and treatment of steam condensate. Background Technology

[0002] Traditional steam condensate recovery methods typically collect condensate from the plant's heating equipment into a water tower, where it is cooled and then sent to the washing workshop. This method recovers water resources, reduces waste, and cools the condensate to a temperature suitable for process requirements. However, this method has the following problems: First, the temperature of the water recovered from each production stage is unstable, which may lead to excessively high or low washing temperatures, affecting the washing effect. Second, the water tower has a limited capacity; condensate exceeding its capacity is directly discharged, resulting in water waste. Furthermore, manual intervention is required to adjust the temperature and water volume, increasing labor costs. Therefore, the current recovery method cannot meet actual usage needs. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art by providing a steam condensate recovery and treatment device that can automatically regulate the flow rate and temperature of steam condensate, thereby reducing water resource costs and labor costs.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a steam condensate recovery and treatment device, comprising:

[0005] A water storage tank, wherein the water storage tank has a water inlet for receiving steam condensate;

[0006] An automatic heating component is connected to the water storage tank to automatically raise the water temperature in the tank to a set temperature.

[0007] The first water level sensor is located at the bottom of the water storage tank;

[0008] The washing tank is connected to the water storage tank via a water supply pump, which is used to introduce the steam condensate in the water storage tank into the washing tank via the water supply pump;

[0009] A first temperature sensor and a second water level sensor are respectively installed on the side wall and bottom of the washing tank, wherein the second water level sensor is connected to the water supply pump.

[0010] A low-temperature water supply pump is connected to the water storage tank;

[0011] The wastewater treatment equipment includes a purified water storage tower. One end of the wastewater treatment equipment is connected to a water storage tank via a low-temperature water supply pump, and the other end is connected to the drain outlet of the washing tank via a pneumatic drain valve. When the first water level sensor detects that the water level is too low, the low-temperature water supply pump automatically starts and introduces water from the purified water storage tower into the water storage tank. The first temperature sensor is connected to the pneumatic drain valve.

[0012] Preferably, the automatic heating component includes a steam pipe communicating with the water storage tank, and a steam heating valve is provided on the steam pipe; a second temperature sensor is provided on the side wall of the water storage tank, and the second temperature sensor is connected to the steam heating valve.

[0013] Preferably, the number of the first temperature sensor and the second temperature sensor is three to six.

[0014] Preferably, a pipeline booster pump is also provided between the water supply pump and the sewage treatment equipment.

[0015] Preferably, the wastewater treatment equipment is equipped with a drain valve.

[0016] Preferably, a liquid level sensor is also provided at the water inlet, and the liquid level sensor is connected to the low-temperature water replenishment pump and the water supply pump.

[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0018] 1. By using a first water level sensor and a second temperature sensor to coordinate the control of the steam heating regulating valve and the low-temperature water supply pump, the waste heat of the recovered steam condensate is fully utilized, reducing additional steam consumption and resulting in significant energy savings.

[0019] 2. The first temperature sensor ensures that the water temperature in the washing tank remains stable within the process requirement range of 35-40℃, avoiding poor washing effect caused by temperature fluctuations in the traditional mode. The second water level sensor controls the water level in the washing tank.

[0020] 3. The water in the water purification storage tower inside the sewage treatment equipment can be automatically replenished into the storage tank through a low-temperature water supply pump, avoiding water waste. The fully automated operation reduces manual intervention and saves labor costs: compared with the traditional mode that requires 3-4 people to operate, this treatment equipment can achieve unmanned operation. Attached Figure Description

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] The components include: 1. Water storage tank; 3. First water level sensor; 4. Washing tank; 5. Water supply pump; 6. First temperature sensor; 7. Second water level sensor; 8. Low temperature water supply pump; 9. Sewage treatment equipment; 10. Drainage pneumatic valve; 11. Pipeline booster pump; 12. Sewage discharge valve; 20. Steam pipeline; 21. Steam heating valve; 22. Second temperature sensor; 30. Water inlet. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] This invention provides a steam condensate recovery and treatment device to solve the problem that the water temperature recovered in each production stage of the prior art is unstable, which may lead to excessively high or low washing temperature, affecting the washing effect, wasting water resources and increasing labor costs.

[0026] For ease of understanding, the specific processes in the embodiments of this application are described below. Please refer to [link / reference]. Figure 1 A steam condensate recovery and treatment device according to an embodiment of this application includes a water storage tank 1, an automatic heating component 2, a first water level sensor 3, a washing tank 4, a water supply pump 5, a first temperature sensor 6, a second water level sensor 7, a low-temperature water replenishment pump 8, and a sewage treatment device 9.

[0027] The water storage tank has an inlet 30 on its left side for connecting steam condensate, which flows into the water storage tank 1 through the inlet 30. The automatic heating component is connected to the water storage tank 1 and is used to automatically raise the water temperature in the water storage tank 1 to the set temperature. The first water level sensor 3 is located at the bottom of the water storage tank 1 and is used to sense the water level in the water storage tank 1.

[0028] The washing tank 4 is connected to the water storage tank via a water supply pump 5. The water supply pump 5 introduces the steam condensate from the water storage tank 1 into the washing tank 4. The first temperature sensor 6 and the second water level sensor 7 are respectively installed on the side wall and bottom of the washing tank 4, wherein the second water level sensor 7 is connected to the water supply pump 5. In this embodiment, the second water level sensor 7 senses the water level in the washing tank 4, thereby controlling the water level in the washing tank 4 by controlling the rotation speed of the water supply pump 5.

[0029] The low-temperature water supply pump 8 is connected to the water storage tank 1 and to the first water level sensor 3. The wastewater treatment equipment 9 is equipped with a purified water storage tower. One end of the wastewater treatment equipment 9 is connected to the water storage tank 1 via the low-temperature water supply pump 8, and the other end is connected to the drain outlet of the washing tank 4 via a drain pneumatic valve 10. Thus, when the first water level sensor 3 detects that the water level in the water storage tank 1 is too low, it automatically controls the low-temperature water supply pump 8 to start, thereby introducing water from the purified water storage tower in the wastewater treatment equipment 9 into the water storage tank to replenish the water level. The first temperature sensor 6 is connected to the drain pneumatic valve 10. When the first temperature sensor 6 senses that the water temperature in the washing tank 4 is below 35°C, it opens the drain pneumatic valve 10, draining the water into the purified water storage tower in the wastewater treatment equipment 9 for storage.

[0030] Furthermore, the automatic heating component 2 includes a steam pipe 20 communicating with the water storage tank 1, and a steam heating valve 21 is provided on the steam pipe 20; a second temperature sensor 22 is provided on the side wall of the water storage tank 1, and the second temperature sensor 22 is connected to the steam heating valve 21. Thus, when the second temperature sensor 22 senses that the temperature inside the water storage tank 1 is too low, the second temperature sensor 22 controls the steam heating valve 21 to open, thereby increasing the temperature of the condensate in the water storage tank 1.

[0031] Furthermore, the number of the first temperature sensor 6 and the second temperature sensor 22 is three to six, which makes the detected temperature data more accurate.

[0032] Furthermore, a pipeline booster pump 11 is provided between the water supply pump 5 and the sewage treatment equipment 9. The booster pump 11 maintains a certain pressure in the pipeline supplying the low-temperature water supply pump 8, which can ensure the normal operation of the low-temperature water supply pump 8 and solve adverse factors such as cavitation and negative pressure of the low-temperature water supply pump 8. The whole set of equipment can enable water resources to be recycled and save a lot of steam heating costs by using recycled steam condensate.

[0033] Furthermore, the sewage treatment equipment 9 is equipped with a drain valve 12, which is used to discharge the wastewater in the sewage treatment equipment 9.

[0034] Furthermore, a liquid level sensor is also provided at the water inlet 30. The liquid level sensor is connected to the low-temperature water replenishment pump and the water supply pump. When the liquid level sensor senses that the water level is too low, the low-temperature water replenishment pump 8 is turned on and the operation of the water supply pump 5 is temporarily stopped.

[0035] The water temperature here needs to be maintained between 35 and 40℃. The actual workflow is as follows:

[0036] 1) Automatic control of condensate water

[0037] The steam condensate generated in the workshop enters the storage tank 1 through inlet 30 for storage. A second temperature sensor 22 detects the water temperature in storage tank 1. When the water temperature exceeds a set value of 40°C, the second temperature sensor 22 sends a signal to the control system, activating the low-temperature water supply pump 8 to replenish low-temperature purified water from the purified water storage tower. If the water temperature is below the set value of 35°C, the steam heating valve 21 is opened to inject heating steam into the storage tank, raising the temperature of the steam condensate in the tank to the set value. If the water level at inlet 30 is too low, the low-temperature water supply pump 8 is activated, and the water supply pump 5 is temporarily stopped. This automatic control system fully utilizes the preheating of the steam condensate, reducing heat loss, and simultaneously replenishes the low-temperature purified water from the purified water storage tower into storage tank 1, avoiding water waste.

[0038] 2) Automatic control of water supply to the washing tank

[0039] The second water level sensor 7 detects the water level in the washing tank 4 and controls the speed of the water supply pump 5 through the frequency converter: when the water level is too low, the speed of the water supply pump 5 is increased to increase the water supply; when the water level reaches the set value, the speed of the water supply pump 5 is reduced to maintain stability.

[0040] The first temperature sensor 6 monitors the water temperature in the washing tank 4. If the water temperature is below 35℃, the drain pneumatic valve 10 is opened to drain the water into the purified water storage tower in the wastewater treatment equipment 9. The above steps ensure that the water level and temperature in the washing tank 4 remain within the set environment.

[0041] 3) Wastewater treatment and recycling

[0042] After being purified by the sewage treatment equipment 9, the sewage is stored in the water purification storage tower, and at the same time, the wastewater in the sewage treatment equipment 9 is discharged through the drain valve 12.

[0043] In actual use, the water temperature in the washing tank remains stable at 35-40℃, meeting the requirements of the chemical fiber raw material cleaning process. Simultaneously, the recycling and circulation of water in the wastewater treatment equipment 9 fully utilizes water resources. Compared to traditional methods, steam consumption is reduced by 30%, and water resource utilization is increased by 50%. No manual intervention is required for water level and temperature adjustment, saving the labor costs of 3-4 people and effectively meeting actual usage needs.

[0044] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A steam condensate recovery and treatment device, characterized in that, include: A water storage tank, wherein the water storage tank has a water inlet for receiving steam condensate; An automatic heating component is connected to the water storage tank to automatically raise the water temperature in the tank to a set temperature. The first water level sensor is located at the bottom of the water storage tank; The washing tank is connected to the water storage tank via a water supply pump, which is used to introduce the steam condensate in the water storage tank into the washing tank via the water supply pump; A first temperature sensor and a second water level sensor are respectively installed on the side wall and bottom of the washing tank, wherein the second water level sensor is connected to the water supply pump. A low-temperature water supply pump is connected to the water storage tank; The wastewater treatment equipment includes a purified water storage tower. One end of the wastewater treatment equipment is connected to a water storage tank via a low-temperature water supply pump, and the other end is connected to the drain outlet of the washing tank via a pneumatic drain valve. When the first water level sensor detects that the water level is too low, the low-temperature water supply pump automatically starts and introduces water from the purified water storage tower into the water storage tank. The first temperature sensor is connected to the pneumatic drain valve.

2. The steam condensate recovery and treatment equipment as described in claim 1, characterized in that: The automatic heating component includes a steam pipe connected to a water storage tank; a steam heating valve is provided on the steam pipe; a second temperature sensor is provided on the side wall of the water storage tank; the second temperature sensor is connected to the steam heating valve.

3. The steam condensate recovery and treatment equipment as described in claim 2, characterized in that: The number of the first temperature sensor and the second temperature sensor is three to six.

4. The steam condensate recovery and treatment equipment as described in claim 1, characterized in that: A pipeline booster pump is also installed between the water supply pump and the sewage treatment equipment.

5. The steam condensate recovery and treatment equipment as described in claim 1, characterized in that: The wastewater treatment equipment is equipped with a drain valve.

6. The steam condensate recovery and treatment equipment as described in claim 1, characterized in that: A liquid level sensor is also provided at the water inlet, and the liquid level sensor is connected to the low-temperature water replenishment pump and the water supply pump.

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