Pickling tank with acid liquor cyclic heating function

By designing a circulating heating system, the problem of uneven water flow distribution in the pickling tank during winter was solved, achieving uniform heating and improved fluidity of the acid solution, thereby increasing pickling efficiency and the uniformity of metal surface treatment.

CN223906957UActive Publication Date: 2026-02-13HENAN WANBANG ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520425970.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-13
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

The existing pickling tank has uneven water flow distribution in winter, resulting in low heating efficiency. Heat cannot be effectively transferred in some areas, which affects the pickling effect and may lead to uneven metal surface treatment.

Method used

A circulating heating system is adopted, including components such as a circulating pump, water outlet baffle, water distribution pipe, spiral heating tube and baffle. Through the Venturi effect and the design of the spiral heating tube, uniform heating of acid solution and improved fluidity are achieved.

Benefits of technology

This method achieves uniform heating of the acid solution in the pickling tank, improves heating efficiency and pickling effect, avoids local overheating or underheating, and enhances the uniformity of metal surface treatment.

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Abstract

The utility model discloses a pickling tank with an acid liquor circulation heating function, which relates to the technical field of pickling tanks and comprises a tank body, a water outlet batten and a water inlet batten are connected onto the inner walls of two ends of the tank body, a circulating pump is connected onto the outer wall of one end, close to the water inlet batten, of the tank body, a water inlet of the circulating pump is connected with the water inlet batten, and a water outlet of the circulating pump is connected with the water outlet batten. A water outlet of the circulating pump is connected with a water outlet pipeline, the water outlet pipeline is fixedly connected to the inner wall of the tank body, and one end, far away from the circulating pump, of the water outlet pipeline is connected with the water outlet batten. According to the pickling tank with the acid liquid circulation heating function, the water distribution pipe component with the water absorption holes is arranged on the tank wall of the tank body, when water flows in a pipeline, the water close to the tank wall can be absorbed and enters heating circulation, it is ensured that the acid liquid in the tank body is evenly heated, and the acid liquid circulation heating function is achieved. And the condition of non-uniform heating at the pool wall is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pickling tank technical field more specifically is related to a pickling tank with acid liquid circulation heating. BACKGROUND

[0002] Pickling tank is an indispensable equipment in metal pickling process, mainly used for removing the oxide layer and dirt on the surface of metal. In winter, due to the low ambient temperature, the water temperature in the pickling tank is easy to drop, which affects the pickling effect. Therefore, it is usually necessary to heat the pickling tank to maintain the appropriate working temperature.

[0003] The Chinese patent with application number 202121661577.9 discloses a heating type pickling tank, which comprises a pickling tank, a reciprocating mechanism fixedly connected to the upper end of the pickling tank, a linkage plate fixedly connected to the upper end of the reciprocating mechanism, a plurality of heating pipes fixedly connected to the lower end of the linkage plate, a transmission mechanism fixedly connected to the left side end of the pickling tank, a support fixing mechanism fixedly connected to the right side end of the transmission mechanism, and a mixing mechanism rotatably connected inside the pickling tank. The heating type pickling tank has the following problems in use:

[0004] 1. In winter, the water flow near the pool wall is slow, resulting in lower water temperature in this area, which cannot maintain consistent water temperature with the pool center area. This uneven water flow distribution affects the circulation effect of hot water in the pool, making it difficult to effectively transfer heat in some areas, resulting in low overall heating efficiency.

[0005] 2. Since the heating area is mainly concentrated in a specific part, the temperature of the heating area is higher, while the temperature of the area far from the heating source is lower. This uneven temperature distribution not only affects the pickling effect, but also may cause uneven metal surface treatment, even causing local overheating or underheating problems.

[0006] Therefore, it is necessary to propose a pickling tank with acid liquid circulation heating to solve the above problems. UTILITY MODEL CONTENTS

[0007] To solve the above problems, the utility model provides a pickling tank with acid liquid circulation heating, which has the function of circulating and heating acidic liquid, improving the effect when used in winter.

[0008] The utility model adopts the following technical solutions to achieve the above purpose:

[0009] The utility model provides an acid pickling pool with acid liquid circulation heating, comprising a pool body, water outlet strip plates and water inlet strip plates are connected to the inner walls of both ends of the pool body, a circulating pump is connected to the outer wall of the end of the pool body close to the water inlet strip plate, the water inlet of the circulating pump is connected with the water inlet strip plate, the water outlet of the circulating pump is connected with a water outlet pipeline, the water outlet pipeline is fixedly connected to the inner wall of the pool body, and the end of the water outlet pipeline away from the circulating pump is connected with the water outlet strip plate.

[0010] The water outlet pipeline comprises a total water pipe and a branch water pipe, the total water pipe is located at the end close to the circulating pump, a preheating pipe is connected between the total water pipe and the branch water pipe, the preheating pipe is internally provided with a wide mouth part and a narrow mouth part in communication, the wide mouth part is located at the end close to the total water pipe, and a heating ring is connected to the inner wall of the wide mouth part.

[0011] The branch water pipe is internally connected with convex strips arranged in an up-down mode, the convex strips are provided with water suction holes penetrating through the branch water pipe, and the inner part of the water outlet strip plate is provided with a spiral heating pipe.

[0012] Preferably, the inner part of the water outlet strip plate is in communication with the branch water pipe, the spiral heating pipe is located at both ends in the water outlet strip plate, and the spiral heating pipe is coaxially connected with a power supply device.

[0013] Preferably, the inner part of the water outlet strip plate is provided with a baffle, and the baffle is provided with turbulence plates at both ends.

[0014] Preferably, the turbulence plates are spirally arranged, and the turbulence plates are coaxially arranged with the spiral heating pipe.

[0015] Preferably, the outer wall of the water outlet strip plate is connected with water outlet nozzles, and the middle part of the water outlet strip plate is provided with water passing grooves in communication with the water outlet nozzles.

[0016] Preferably, the inner wall of the heating ring is provided with a spiral boss.

[0017] Preferably, the top of the pool body is connected with symmetrically arranged support frames.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. The water outlet strip plates are provided with the branch water pipe parts with the water suction holes on the pool wall of the pool body, the water flow in the pipeline can suck the water flow close to the pool wall to enter the heating circulation, the uniform heating of the acid liquid in the pool body is ensured, and the uneven heating at the pool wall is avoided.

[0020] 2、The water outlet strip plate and the water inlet strip plate components are arranged at the two ends of the pool body, so that the water flow can flow from one end to the other end, and part of the water flow will move towards the pool wall, improving the flow efficiency when the water flow is heated, and improving the flow of the water body and the efficiency of pickling.

[0021] 3、The spiral heating pipe and the baffle are matched, so that the laminar flow state of the acid water flow is broken, and the heating efficiency of the acid water is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic view of the pool body and the circulating pump structure in the utility model;

[0023] Figure 2 It is a schematic view of the pool body and the water distribution pipe structure in the utility model;

[0024] Figure 3 It is a schematic view of the water distribution pipe and the preheating pipe structure in the utility model;

[0025] Figure 4 It is a schematic view of the water outlet strip plate and the spoiler structure in the utility model.

[0026] REFERENCE SIGNS:

[0027] 100, pool body; 101, water outlet strip plate; 102, water inlet strip plate; 103, circulating pump; 104, main water pipe; 105, water distribution pipe; 106, preheating pipe; 107, wide mouth part; 108, narrow mouth part; 109, heating ring; 110, convex strip; 111, water suction hole; 112, spiral heating pipe; 113, baffle; 114, spoiler; 115, water outlet nozzle; 116, spiral boss; 117, support frame. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] Please refer to Figures 1-4The acid pickling tank with acid liquid circulation heating comprises a tank body 100, water outlet strips 101 and water inlet strips 102 connected to the inner walls of both ends of the tank body 100, the water outlet strips 101 being water outlets for discharging liquid delivered by a circulating pump 103 into the tank body 100, the water inlet strips 102 being water inlets, in another embodiment, the water inlet strips 102 are water inlets connected to the water inlet of the circulating pump 103, the circulating pump 103 is connected to the outer wall of one end of the tank body 100 close to the water inlet strips 102, acid-resistant parts are used for parts in the circulating pump 103 that will be in contact with acid liquid, the acid-resistant circulating pump 103 is an existing device for delivering acid and alkaline substances, and will not be described in detail here, the water inlet of the circulating pump 103 is connected to the water inlet strips 102, the water outlet of the circulating pump 103 is connected to a water outlet pipeline, the water outlet pipeline is fixedly connected to the inner wall of the tank body 100, the water outlet strips 101 and the water inlet strips 102 are located at both ends in the tank body 100, the water flow sprayed from the water outlet strips 101 flows to the other end, and then returns to the circulating pump 103 through the water inlet strips 102, and the circulation is repeated, so that the water flow is circulated, and the water outlet pipeline is connected to the water outlet strips 101 away from the circulating pump 103;

[0030] It should be noted that acid-resistant and high-temperature-resistant materials are used for positions in the application that need to be in contact with acid liquid, such as the circulating pump 103, the total water pipeline 104, the water distribution pipeline 105, the water outlet strips 101, the water inlet strips 102, etc., so as to be used in acid liquid.

[0031] The water flow from the circulating pump 103 is divided into two streams by the total water pipeline 104 and enters the water distribution pipeline 105, so that the flow rate of the water flow is reduced, and the following structure can increase the flow rate of the water flow: the water outlet pipeline comprises the total water pipeline 104 and the water distribution pipeline 105, the total water pipeline 104 is located at one end close to the circulating pump 103, specifically, the water distribution pipeline 105 is provided with two strips and is fixedly connected to the two long inner walls of the tank body 100, the total water pipeline 104 and the water distribution pipeline 105 are connected to the preheating pipeline 106, the water flow from the circulating pump 103 is divided by the total water pipeline 104, and the flow rate is reduced, the preheating pipeline 106 is provided with a wide mouth portion 107 and a narrow mouth portion 108 connected to each other in the inside, the wide mouth portion 107 is located at one end close to the total water pipeline 104, the inner wall of the wide mouth portion 107 is connected to the heating ring 109, the heating ring 109 preheats the acid liquid in the inside, when the temperature of the acid liquid rises, the volume increases, and when the acid liquid flows to the narrow mouth portion 108, the flow rate of the liquid increases according to the Venturi effect;

[0032] In use, the flow rate of the water flow close to the side wall of the tank body 100 is low and cannot be well heated, and the following structure can be used to suck the water flow into the pipeline and then heat it: refer to Figure 3The water diversion pipe 105 is internally connected with the upper and lower convex strips 110, the upper and lower convex strips 110 make the cross-sectional area of the water diversion pipe 105 decrease, at this time, the internal water flow increases in speed under the action of the Venturi effect, due to the fast flow speed in the pipe, the pressure difference appears between the inside and outside of the pipe, the water flow outside the pipe will enter the water diversion pipe 105 from the water suction hole 111, the flow of the internal water flow is increased, the water suction hole 111 is arranged on the convex strip 110 and is inclined, when the water outlet strip plate 101 is internally provided with the spiral heating pipe 112, the spiral heating pipe 112 is used for heating the water flow in the water outlet strip plate 101, after heating, the uniform circulation heating effect is achieved through the circulation of the acid liquid.

[0033] Specifically, referring to Figure 4 , the inside of the water outlet strip plate 101 is communicated with the water diversion pipe 105, the water flow in the water diversion pipe 105 enters the water outlet strip plate 101 and is discharged through the water outlet strip plate 101, the spiral heating pipe 112 is located at both ends in the water outlet strip plate 101, the spiral heating pipe 112 is connected with the power supply device, specifically, the heating ring 109 in the preheating pipe 106 is also connected with the power supply device and is used for providing power.

[0034] Specifically, referring to Figure 4 , the inside of the water outlet strip plate 101 is provided with the baffle 113, when the internal water flow flows, the baffle 113 is blocked, then the water flow enters the water outlet nozzle 115 from the water passing groove, the both ends of the baffle 113 are provided with the spoiler 114, the spoiler 114 disturbs the acid liquid and avoids the occurrence of the liquid laminar flow.

[0035] Specifically, referring to Figure 4 , the spoiler 114 is spirally arranged, when the liquid flows, the liquid is affected by the spiral spoiler 114 and moves to the spiral heating pipe 112 under the action of inertia, the contact between the water flow and the spiral heating pipe 112 is increased, the heating efficiency is improved, the spoiler 114 is coaxially arranged with the spiral heating pipe 112.

[0036] Specifically, referring to Figure 4 , the outer wall of the water outlet strip plate 101 is connected with the water outlet nozzle 115, the water outlet nozzle 115 is equidistantly provided with the water outlets for discharging the water flow, the middle part of the water outlet strip plate 101 is provided with the water passing groove which is communicated with the water outlet nozzle 115.

[0037] Specifically, referring to Figure 3 , the inner wall of the heating ring 109 is provided with the spiral boss 116, so that the water flow rotates when flowing, thereby breaking the laminar flow of the water flow and improving the preheating efficiency of the water flow.

[0038] Specifically, referring to Figure 1and Figure 2 The top of the pool body 100 is connected with symmetrically arranged support frames 117, in use, the lifting hook frame with the metal parts is moved downward, the both ends of the lifting hook frame are supported on the support frames 117, so that the metal parts are not contacted with the bottom wall of the pool body 100, and the lifting hook frame is supported.

[0039] In the embodiment, the circulating pump 103 sucks the acidic liquid in the pool body 100 through the water inlet strip plate 102, the water flow is input into the preheating pipe 106 through the output end, the water flow is heated through the heating ring 109 in the preheating pipe 106, so that the volume is increased, then enters the water distribution pipe 105, at this time, the flow rate of the water flow has been increased, the water flow close to the side wall is sucked, then is transported into the water inlet and outlet strip plate 101, is discharged after being heated through the spiral heating pipe 112 in the water outlet strip plate 101, so that the water flow moves to the other end, and the circulating heating effect is achieved.

[0040] The above embodiment is only the preferred embodiment of the utility model, and cannot be used to limit the range of the utility model protection, and any non-substantial change and replacement made by the person skilled in the art on the basis of the utility model belongs to the range of the utility model required protection.

Claims

1. An acid pickling tank with acid liquid circulation heating, comprising a tank body (100), characterized in that: The both ends of the pool body (100) are connected with water outlet strip (101) and water inlet strip (102), the outer wall of the pool body (100) is connected with circulating pump (103) near the water inlet strip (102), the water inlet of the circulating pump (103) is connected with the water inlet strip (102), the water outlet of the circulating pump (103) is connected with water outlet pipeline, the water outlet pipeline is fixedly connected to the inner wall of the pool body (100), the one end of the water outlet pipeline away from the circulating pump (103) is connected with the water outlet strip (101); The water outlet pipeline includes total water pipe (104) and water distribution pipe (105), the total water pipe (104) is located near the one end of the circulating pump (103), the total water pipe (104) and water distribution pipe (105) are connected with preheating pipe (106), the inside of the preheating pipe (106) is provided with wide mouth (107) and narrow mouth (108) in communication, the wide mouth (107) is located near the one end of the total water pipe (104), the inner wall of the wide mouth (107) is connected with heating ring (109); The inside of the water distribution pipe (105) is connected with convex strip (110) arranged upward and downward, the convex strip (110) is provided with water suction hole (111) penetrating the water distribution pipe (105), the inside of the water outlet strip (101) is provided with spiral heating pipe (112).

2. The pickling tank with acid liquid circulation heating according to claim 1, characterized in that: The inside of the water outlet strip (101) is communicated with the water distribution pipe (105), the spiral heating pipe (112) is located at both ends in the water outlet strip (101), the spiral heating pipe (112) is connected with power supply device.

3. The pickling tank with acid circulation heating according to claim 2, characterized in that: The inside of the water outlet strip (101) is provided with baffle (113), the both ends of the baffle (113) are provided with spoiler (114).

4. The pickling tank with acid circulation heating according to claim 3, characterized in that: The spoiler (114) is spirally arranged, the spoiler (114) is coaxially arranged with the spiral heating pipe (112).

5. The pickling tank with acid circulation heating according to claim 4, characterized in that: The outer wall of the water outlet strip (101) is connected with water outlet nozzle (115), the middle part of the water outlet strip (101) is provided with water passing groove communicated with the water outlet nozzle (115).

6. The pickling tank with acid circulation heating according to claim 1, characterized in that: The inner wall of the heating ring (109) is provided with spiral boss (116).

7. The pickling tank with acid circulation heating according to claim 1, characterized in that: The top of the pool body (100) is connected with support frame (117) arranged symmetrically.

Citation Information

Patent Citations

  • Heating type pickling tank

    CN215251204U