Filter tank for filtering steam condensate water

By designing a multi-stage filtration and adsorption structure for the filter tank, the problems of scale-forming ions and suspended particulate matter in steam condensate were solved, achieving efficient filtration and reuse of condensate, and reducing production costs and wastewater discharge.

CN224077212UActive Publication Date: 2026-04-03JIANGSU CHANGNUO SPORTS VENUES ADVANCED MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, steam condensate contains a large number of scale-forming ions and suspended particulate matter. Direct discharge or reuse can lead to scaling in pipes and heat exchange equipment, reducing heat transfer efficiency and potentially clogging the equipment.

Method used

A filtration tank comprising a sedimentation zone, a filtration zone, and an adsorption zone was designed. It employs a combination of stepped baffles, stainless steel perforated plates, and nylon filter cloth, along with a micro submersible pump and a conveying auger, to achieve three-stage sedimentation and double-layer interception. In conjunction with the activated carbon layer, ion exchange resin layer, and quartz sand layer in the adsorption zone, multi-stage filtration and adsorption treatment are carried out.

Benefits of technology

It effectively removes scale and impurities, improves sedimentation and particle removal rate, ensures the reuse of condensate, reduces production costs and wastewater discharge.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224077212U_ABST
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Abstract

The utility model relates to the technical field of filter tanks, and discloses a filter tank for filtering steam condensate water, which comprises a filter tank body, a settling zone, a filter zone and an adsorption zone. According to the filter tank for filtering steam condensate water, the stepped baffle plate arranged in the filter tank body is matched with the flow guide groove, three-stage sedimentation of scale particles is achieved, the sedimentation effect is improved, the linkage design of the conveying auger and the guide table achieves the effect of conveniently discharging scale, and the filter tank is convenient to use. The micro submersible pump conveys clear water on the upper layer of the settling area to the filtering area through the liquid conveying pipe, sediment disturbance is avoided, the particle removal rate is improved by combining double-layer interception of the stainless steel punched plate and the nylon filter cloth, and when water submerges the nylon filter cloth and is higher than the overflow plate, the water naturally flows into the adsorption area to be subjected to adsorption treatment, and the water quality is improved. The adsorption area is composed of a coarse-hole activated carbon layer, an ion exchange resin layer and a quartz sand layer, organic matter, metal ions and particles are synchronously removed, and the hardness of discharged water is reduced.
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Description

Technical Field

[0001] This application relates to the field of filter tank technology, specifically a filter tank for filtering steam condensate. Background Technology

[0002] In the production processes of industries such as chemical, pharmaceutical, and food, reaction vessels are usually heated by steam. After releasing heat, the steam condenses into high-temperature condensate. This condensate contains a large number of scale-forming ions and suspended particulate matter. If it is directly discharged or reused, it is very easy to form scale in pipes and heat exchange equipment, reducing heat transfer efficiency and even clogging the equipment.

[0003] Therefore, a filter tank for filtering steam condensate is proposed, which can effectively remove scale and impurities, facilitate recycling, reduce production costs, and reduce wastewater discharge. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a filter tank for filtering steam condensate, which has the function of removing scale and impurities, facilitating the recycling of condensate, reducing production costs and wastewater discharge.

[0005] To achieve the above objectives, this application provides the following technical solution: a filter tank for filtering steam condensate, comprising a filter tank body, a sedimentation zone, a filtration zone, and an adsorption zone. The sedimentation zone includes a baffle plate fixedly connected inside the filter tank body. The filtration zone includes an overflow plate fixedly connected inside the filter tank body. The height of the overflow plate is less than the height of the baffle plate. A stainless steel perforated plate and a nylon filter cloth are installed between the baffle plate and the overflow plate. The nylon filter cloth is located above the stainless steel perforated plate.

[0006] The inner wall of the filter tank body is equipped with three baffles, each with a guide groove on its upper surface. The inclination angles of the three baffles increase sequentially. A guide platform and a miniature submersible pump are fixedly connected to one side of the baffle. A rotatable conveying auger is installed inside the filter tank body. The conveying auger is located at the bottom of the guide platform, and the miniature submersible pump is located above the guide platform. The output end of the miniature submersible pump is connected to a liquid delivery pipe. The output end of the liquid delivery pipe passes through a nylon filter cloth and a stainless steel perforated plate in sequence, and extends to the bottom of the stainless steel perforated plate.

[0007] Through the above scheme, the stepped baffles and guide channels installed in the filter tank body achieve three-stage sedimentation of scale particles, improving the sedimentation effect. The linkage design of the conveying auger and guide platform enables convenient scale removal. The miniature submersible pump delivers the upper layer of clear water from the sedimentation zone to the filtration zone through the liquid delivery pipe, avoiding sediment disturbance. The double-layer interception of stainless steel perforated plate and nylon filter cloth improves the particle removal rate. When the water submerges the nylon filter cloth and is higher than the overflow plate, the water will naturally flow into the adsorption zone for adsorption treatment. The adsorption zone can simultaneously remove organic matter, metal ions and particles from the condensate and reduce the hardness of the effluent. Water quality sensors monitor key indicators in real time to ensure that the filtered condensate is reusable.

[0008] Furthermore, an inlet pipe is installed on one side of the filter tank body, and the output end of the inlet pipe is connected to an inlet hood, which is located inside the sedimentation zone.

[0009] The above scheme allows the condensate from the heated steam in the reactor to be transported to the sedimentation zone for preliminary sedimentation via the inlet pipe and inlet hood.

[0010] Furthermore, a drain pipe is installed on the other side of the filter tank body, and the inlet end of the drain pipe is located inside the adsorption zone.

[0011] The above solution allows the treated condensate to be conveniently transported to a suitable location via a drain pipe, which is beneficial for the reuse of condensate.

[0012] Furthermore, a scale discharge pipe is installed on the outer surface of the filter tank body, and one end of the conveying auger is located inside the scale discharge pipe.

[0013] The above solution allows for convenient cleaning of dirt by using a drain pipe in conjunction with a conveying auger.

[0014] Furthermore, a solenoid valve is installed on the section of the discharge pipe, and a sealing plug is provided at the output end of the discharge pipe.

[0015] The above scheme allows for convenient control of the flow rate inside the descaling pipe via a solenoid valve, and further optimization of the descaling process via a sealing plug.

[0016] Furthermore, the input end of the micro submersible pump is connected to a liquid extraction pipe, one end of which is fixedly connected to a micro filter screen, and a servo motor is fixedly connected to the outer surface of the filter tank body. The output shaft end of the servo motor is fixedly connected to the rotating shaft end of the conveying auger.

[0017] With the above solution, when the miniature submersible pump is started, the water inside the sedimentation zone can be transported to the filtration zone through the liquid extraction pipe for filtration. The miniature filter screen can prevent sediment from entering the filtration zone through the liquid extraction pipe, making it more practical. When the servo motor is started, it will drive the conveying auger to rotate, thereby discharging the scale that has settled at the bottom of the guide platform.

[0018] Furthermore, the adsorption zone includes a coarse-porous activated carbon layer fixedly connected to one side of the overflow plate, an ion exchange resin layer is provided on the bottom surface of the coarse-porous activated carbon layer, and a quartz sand layer is provided at the bottom of the ion exchange resin layer.

[0019] The above scheme enables the adsorption zone to adsorb organic matter and intercept large particles through the coarse-porous activated carbon layer, the adsorption zone to deeply descale and capture metal ions through the ion exchange resin layer, and the quartz sand layer to finely filter and evenly distribute water.

[0020] Furthermore, a water quality sensor is installed at the bottom inner part of the filter tank body, and the water quality sensor is located on one side of the overflow plate.

[0021] The above scheme allows for easy detection of water quality within the adsorption zone using a water quality sensor, facilitating the determination of whether the treated condensate meets the standards and promoting the reuse of the condensate.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This is a filter tank for filtering steam condensate. The filter tank body features a stepped baffle plate and a guide channel to achieve three-stage sedimentation of scale particles, improving the sedimentation effect. The linkage design of the conveying auger and guide platform enables convenient scale removal. A miniature submersible pump delivers the upper layer of clear water from the sedimentation zone to the filtration zone through a liquid delivery pipe, avoiding sediment disturbance. The double-layer interception of stainless steel perforated plates and nylon filter cloth improves particle removal rate. When the water submerges the nylon filter cloth and is higher than the overflow plate, the water naturally flows into the adsorption zone for adsorption treatment. The adsorption zone adopts a structure consisting of a coarse-porous activated carbon layer, an ion exchange resin layer, and a quartz sand layer, simultaneously removing organic matter, metal ions, and particles, reducing the hardness of the effluent. A water quality sensor monitors key indicators in real time to ensure that the filtered condensate is reusable. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the overall structure of this application;

[0026] Figure 3 This is a schematic diagram of the overall structure of this application;

[0027] Figure 4 This is a schematic diagram of the overall structure of this application;

[0028] Figure 5 This is a schematic diagram of the overall structure of this application.

[0029] In the picture:

[0030] 1. Filter tank body; 2. Sedimentation zone; 201. Baffle plate; 202. Baffle plate; 203. Guide channel; 204. Guide platform; 205. Conveying auger; 206. Miniature submersible pump; 207. Liquid extraction pipe; 208. Miniature filter screen; 209. Liquid delivery pipe; 210. Servo motor; 3. Filtration zone; 301. Overflow plate; 302. Stainless steel perforated plate; 303. Nylon filter cloth; 4. Adsorption zone; 401. Coarse-porous activated carbon layer; 402. Ion exchange resin layer; 403. Quartz sand layer; 404. Water quality sensor; 5. Inlet pipe; 6. Inlet cover; 7. Drain pipe; 8. Scale discharge pipe; 9. Solenoid valve; 10. Sealing plug. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3This embodiment describes a filter tank for filtering steam condensate, comprising a filter tank body 1, a sedimentation zone 2, a filtration zone 3, and an adsorption zone 4. An inlet pipe 5 is installed on one side of the filter tank body 1, and the output end of the inlet pipe 5 is connected to an inlet hood 6, which is located inside the sedimentation zone 2. The inlet pipe 5 and the inlet hood 6 allow the steam condensate from the reactor to be transported to the sedimentation zone 2 for preliminary sedimentation. A drain pipe 7 is installed on the other side of the filter tank body 1, and the input end of the drain pipe 7 is located inside the adsorption zone 4. The drain pipe 7 allows the treated condensate to be conveniently transported to a suitable location, which is beneficial for the reuse of condensate. The sedimentation zone 2 includes a baffle plate 201 fixedly connected inside the filter tank body 1. The filter zone 3 includes an overflow plate 301 fixedly connected inside the filter tank body 1. The height of the overflow plate 301 is less than the height of the baffle plate 201. A stainless steel perforated plate 302 and a nylon filter cloth 303 are installed between the baffle plate 201 and the overflow plate 301. The nylon filter cloth 303 is located above the stainless steel perforated plate 302.

[0033] Please see Figure 2 , Figure 3 and Figure 5 The inner wall of the filter tank body 1 is equipped with three baffles 202, each with a guide groove 203 on its upper surface. The inclination angles of the three baffles 202 increase sequentially. A guide platform 204 and a miniature submersible pump 206 are fixedly connected to one side of the blocking plate 201. A rotatable conveying auger 205 is installed inside the filter tank body 1. The conveying auger 205 is located at the bottom of the guide platform 204, and the miniature submersible pump 206 is located above the guide platform 204. The output end of the miniature submersible pump 206 is connected to a liquid delivery pipe 209. The output end of 209 passes through the nylon filter cloth 303 and the stainless steel perforated plate 302 in sequence, and extends to the bottom of the stainless steel perforated plate 302. The input end of the micro submersible pump 206 is connected to the liquid extraction pipe 207. One end of the liquid extraction pipe 207 is fixedly connected to the micro filter screen 208. When the micro submersible pump 206 is started, the water inside the sedimentation zone 2 can be transported to the filtration zone 3 through the liquid extraction pipe 207 for filtration. The micro filter screen 208 can prevent sediment from entering the filtration zone 3 through the liquid extraction pipe 207, which is more practical.

[0034] Please see Figure 3 , Figure 4 and Figure 5A servo motor 210 is fixedly connected to the outer surface of the filter tank body 1. The output shaft of the servo motor 210 is fixedly connected to the rotating shaft of the conveying auger 205. When the servo motor 210 starts, it drives the conveying auger 205 to rotate, thereby discharging the scale deposited at the bottom of the guide platform 204. A scale discharge pipe 8 is installed on the outer surface of the filter tank body 1. One end of the conveying auger 205 is located inside the scale discharge pipe 8. The scale discharge pipe 8 can cooperate with the conveying auger 205 to achieve convenient cleaning of dirt. A solenoid valve 9 is installed on the pipe section of the scale discharge pipe 8. A sealing plug 10 is provided at the output end of the scale discharge pipe 8. The solenoid valve 9 can be used to control the flow rate inside the scale discharge pipe 8. The sealing plug 10 can further optimize the scale discharge process.

[0035] Please see Figure 2 , Figure 3 and Figure 4 The adsorption zone 4 includes a coarse-porous activated carbon layer 401 fixedly connected to one side of the overflow plate 301. An ion exchange resin layer 402 is provided on the bottom surface of the coarse-porous activated carbon layer 401, and a quartz sand layer 403 is provided at the bottom of the ion exchange resin layer 402. The coarse-porous activated carbon layer 401 enables the adsorption zone 4 to adsorb organic matter and intercept large particles. The ion exchange resin layer 402 enables the adsorption zone 4 to perform deep descaling and capture metal ions. The quartz sand layer 403 enables fine filtration and uniform water distribution. A water quality sensor 404 is installed at the bottom of the filter tank body 1. The water quality sensor 404 is located on one side of the overflow plate 301. The water quality sensor 404 can conveniently detect the water quality inside the adsorption zone 4, and conveniently determine whether the treated condensate meets the standards, which is beneficial to the reuse of condensate.

[0036] In this embodiment, a filter tank for filtering steam condensate is provided. The stepped baffle plate 202 and the guide channel 203 set in the filter tank body 1 realize three-stage sedimentation of scale particles, which improves the sedimentation effect. The linkage design of the conveying auger 205 and the guide platform 204 realizes the effect of convenient scale removal. The micro submersible pump 206 delivers the upper layer of clear water in the sedimentation zone 2 to the filter zone 3 through the liquid delivery pipe 209, avoiding sediment disturbance. Combined with the double-layer interception of stainless steel perforated plate 302 and nylon filter cloth 303, the particle removal rate is improved. When the water is above the nylon filter cloth 303 and above the overflow plate 301, the water will naturally flow into the adsorption zone 4 for adsorption treatment. The adsorption zone 4 adopts a structure of coarse-porous activated carbon layer 401-ion exchange resin layer 402-quartz sand layer 403, which simultaneously removes organic matter, metal ions and particles, and reduces the hardness of the effluent. The water quality sensor 404 monitors key indicators in real time to ensure that the filtered condensate can be reused.

[0037] The working principle of the above embodiment is as follows: After the high-temperature steam condensate is introduced into the sedimentation zone 2 through the inlet pipe 5 and the inlet cover 6, it is first affected by the stepped flow guiding structure formed by the three-stage baffle 202. The water flow forms a controllable turbulence along the guide channel 203, which causes the suspended scale particles to collide and aggregate in the step-by-step falling and settle into the guide platform 204 area. During the sedimentation process, the micro submersible pump 206 draws the upper layer of clear water in the sedimentation zone 2 through the liquid extraction pipe 207 and the micro filter screen 208, and transports it to the filtration zone 3 through the liquid delivery pipe 209. The filtration is carried out by the stainless steel perforated plate 302 and the nylon The filter cloth 303 completes the secondary interception and removes particles. The filtered water passes over the overflow plate 301 and enters the adsorption zone 4. It flows sequentially through the coarse-porous activated carbon layer 401 to adsorb organic matter, the ion exchange resin layer 402 to replace Ca²⁺ / Mg²⁺ ions, and the quartz sand layer 403 for fine filtration. Meanwhile, the water quality sensor 404 monitors the water output indicators of the adsorption zone 4 in real time. Finally, the purified water is output to the designated location through the drain pipe 7. The scale deposited at the bottom of the guide platform 204 is pushed to the scale discharge pipe 8 by the conveying auger 205 driven by the servo motor 210 for external discharge.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter tank for filtering steam condensate water, comprising a filter tank body (1), a sedimentation zone (2), a filtration zone (3) and an adsorption zone (4), characterized in that: The precipitation area (2) comprises a blocking plate (201) fixedly connected inside the filter tank body (1), the filter area (3) comprises an overflow plate (301) fixedly connected inside the filter tank body (1), the height of the overflow plate (301) is less than the height of the blocking plate (201), a stainless steel punched plate (302) and a nylon filter cloth (303) are installed between the blocking plate (201) and the overflow plate (301), and the nylon filter cloth (303) is located above the stainless steel punched plate (302). Three baffle plates (202) are installed on the inner wall of the filter tank body (1), the upper surface of each baffle plate (202) is provided with a flow guide groove (203), the inclination angles of the three baffle plates (202) gradually increase, one side of the blocking plate (201) is fixedly connected with a guide table (204) and a micro-submersible pump (206), a rotatable conveying auger (205) is installed inside the filter tank body (1), the conveying auger (205) is located at the bottom of the guide table (204), the micro-submersible pump (206) is located above the guide table (204), the output end of the micro-submersible pump (206) is communicated with a liquid delivery pipe (209), the output end of the liquid delivery pipe (209) penetrates the nylon filter cloth (303) and the stainless steel punched plate (302) in sequence and extends below the stainless steel punched plate (302).

2. A filter tank for filtering steam condensate water according to claim 1, characterized in that: One side of the filter tank body (1) is provided with a water inlet pipe (5), the output end of the water inlet pipe (5) is communicated with a water inlet cover (6), and the water inlet cover (6) is located inside the precipitation area (2).

3. A filter tank for filtering steam condensate water according to claim 1, characterized in that: The other side of the filter tank body (1) is provided with a drain pipe (7), and the input end of the drain pipe (7) is located inside the adsorption area (4).

4. A filter tank for filtering steam condensate water according to claim 1, characterized in that: A descaling pipe (8) is installed on the outer surface of the filter tank body (1), and one end of the conveying auger (205) is located inside the descaling pipe (8).

5. A filter tank for filtering steam condensate water according to claim 4, characterized in that: An electromagnetic valve (9) is installed on the pipe section of the descaling pipe (8), and the output end of the descaling pipe (8) is provided with a sealing plug (10).

6. A filter tank for filtering steam condensate water according to claim 1, characterized in that: The input end of the micro-submersible pump (206) is communicated with a liquid suction pipe (207), one end of the liquid suction pipe (207) is fixedly connected with a micro filter screen (208), the outer surface of the filter tank body (1) is fixedly connected with a servo motor (210), and the output shaft end of the servo motor (210) is fixedly connected with the rotating shaft end of the conveying auger (205).

7. A filter tank for filtering steam condensate water according to claim 1, characterized in that: The adsorption area (4) comprises a coarse-pore activated carbon layer (401) fixedly connected to one side of the overflow plate (301), the bottom surface of the coarse-pore activated carbon layer (401) is provided with an ion exchange resin layer (402), and the bottom of the ion exchange resin layer (402) is provided with a quartz sand layer (403).

8. A filter tank for filtering steam condensate water according to claim 1, characterized in that: A water quality sensor (404) is installed on the inner bottom of the filter tank body (1), and the water quality sensor (404) is located on one side of the overflow plate (301).