High temperature deformation resistant chemical pump

Abstract

The utility model discloses a kind of high-temperature anti-deformation chemical pumps, including pump body, impeller, the metal piece combination is embedded in the pump body, is integrally formed by moulding process with fluoroplastic, the structural rigidity and stability of pump body are strengthened, effectively resist high-temperature deformation and pipeline stress;The metal reinforcing framework is embedded in the impeller, prevent its deformation under high temperature again;The utility model effectively solves the problem of pump body deformation, impeller friction and interlayer peeling under high-temperature condition, improves the service life and operating reliability of chemical pump under high-temperature strong corrosion working condition.

Description

Technical Field

[0001] This utility model relates to the field of chemical pump technology, and in particular to a high-temperature deformation-resistant chemical pump. Background Technology

[0002] In industries such as chemical, pharmaceutical, and metallurgy, it is often necessary to transport highly corrosive media. Non-metallic pumps commonly use steel-lined fluoroplastic pumps, which are widely used in chemical applications requiring strong corrosion resistance. However, under high-temperature conditions, due to the significant difference in thermal expansion coefficients between the carbon steel base and the fluoroplastic lining, long-term exposure to high and low temperature cycles can easily lead to delamination between the metal and the fluoroplastic layer, causing pump failure and severely affecting the pump's service life. To address this issue, a fluoroplastic clamp pump from Germany was subsequently introduced. This pump body is integrally molded from fluoroplastic and reinforced with external metal clamps to enhance its mechanical strength, mitigating the peeling problem caused by thermal expansion and contraction to some extent. However, in practical applications, it was found that when the medium temperature exceeds 120°C, the pump inlet section is still prone to compression deformation under the combined effects of pipeline stress and high-temperature softening. This leads to friction between the impeller and the pump body, ultimately causing damage to both the impeller and the pump body. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a high-temperature deformation-resistant chemical pump.

[0004] To achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by this utility model is: a high-temperature anti-deformation chemical pump, including a pump body and an impeller. The pump body is made of fluoroplastic, and the pump body is embedded with a metal component assembly. The impeller is embedded with a metal reinforcing skeleton.

[0005] Preferably, the metal component assembly includes a first metal component and a second metal component, wherein the first metal component is mounted at the top opening of the second metal component.

[0006] Preferably, the first metal part and the second metal part together form an internal skeleton to enhance the structural rigidity of the pump body.

[0007] Preferably, the first metal part and the second metal part are disposed inside the pump body and are completely covered by fluoroplastic, and are not exposed in the flow channel.

[0008] Preferably, the impeller is integrally molded from a fluoroplastic matrix and a metal reinforcing skeleton.

[0009] Preferably, the structural contour of the metal-reinforced skeleton extends and is embedded inside the impeller blades.

[0010] Preferably, the pump body is provided with a clamping structure, which includes a side clamping plate A and a side clamping plate B.

[0011] Compared with the traditional structure, the beneficial effects of this utility model are: This invention enhances the overall structural rigidity and stability of the pump body by embedding a combination of metal parts within the pump body. This effectively resists deformation under high temperatures and external stresses applied by the pipeline, thus solving the problem of impeller friction caused by pump body inlet deformation.

[0012] The pump body is manufactured using a molding process that ensures extremely high bonding strength and integrity between the metal parts and the fluoroplastic matrix. This avoids peeling during high-temperature cycling due to the difference in their thermal expansion coefficients, thus extending the pump's service life under high-temperature conditions.

[0013] The impeller has an embedded metal reinforcing frame, which ensures that the impeller can maintain its shape and dynamic balance under high temperature operation, prevents blade deformation, and improves operational reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the impeller structure of this utility model; Figure 3 This is a schematic diagram of the structure of the first metal part of this utility model; Figure 4 This is a schematic diagram of the structure of the second metal part of this utility model; In the diagram: 1. Pump body, 2. Impeller, 3. Metal reinforcing frame, 4. First metal part, 5. Second metal part, 6. Side clamp A, 7. Side clamp B. Detailed Implementation

[0015] The present invention will be further described below.

[0016] See attached document Figure 1-4 A high-temperature deformation-resistant chemical pump includes a pump body 1 and an impeller 2. The pump body 1 is made of fluoroplastic. The pump body 1 is characterized by having a metal component assembly embedded in it, and the impeller 2 having a metal reinforcing skeleton 3 embedded in it.

[0017] In this preferred embodiment, the metal component assembly includes a first metal component 4 and a second metal component 5, wherein the first metal component 4 is mounted at the top opening of the second metal component 5.

[0018] In this preferred embodiment, the first metal part 4 and the second metal part 5 together form an internal skeleton for enhancing the structural rigidity of the pump body.

[0019] In this preferred embodiment, the first metal part 4 and the second metal part 5 are disposed inside the pump body 1 and are completely covered by fluoroplastic, and are not exposed in the flow channel.

[0020] In this preferred embodiment, the impeller 2 is integrally molded from a fluoroplastic matrix and a metal-reinforced skeleton 3.

[0021] In this preferred embodiment, the structural outline of the metal reinforced skeleton 3 extends and is embedded inside the blades of the impeller 2.

[0022] In this preferred embodiment, the pump body 1 is provided with a clamping structure, which includes a side clamping plate A6 and a side clamping plate B7.

[0023] In this preferred embodiment, the pump body 1 is manufactured using a molding process, and the specific steps are as follows: Install the second metal part 5 onto the bottom mold of the mold; The first metal part 4 and the second metal part 5 are assembled, and then filled with fluoroplastic powder. The entire mold is placed in a high-temperature environment for sintering, achieving one-time molding to form a pump body with a dense structure and a strong bond between fluoroplastics and metal parts.

[0024] In this preferred embodiment, the specific steps of the impeller 2 molding process are as follows: the metal reinforcing skeleton 3 is installed in the molding mold of the impeller 2, ensuring that the outline of the metal reinforcing skeleton 3 extends to the cavity area of ​​the impeller 2 blades; fluoroplastic powder is added to the mold; and then the mold is heated and sintered to form a single molding process.

[0025] In practical implementation, when the chemical pump is running, the drive unit rotates the impeller 2 via the pump shaft. The medium is drawn in from the inlet of the pump body 1, flows through the pump body, and is finally discharged from the outlet. Throughout the process, the pump body 1 and impeller 2 maintain structural integrity and stability under the dual harsh conditions of high temperature and corrosive media, achieving long service life and high reliability.

[0026] The above embodiments of this utility model are merely examples to clearly illustrate this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent technical solutions also fall within the scope of this utility model, and the patent protection scope of this utility model should be defined by each claim.

Claims

1. A high-temperature deformation-resistant chemical pump, comprising a pump body (1) and an impeller (2), wherein the pump body (1) is made of fluoroplastic, characterized in that: The pump body (1) is embedded with a metal assembly, and the impeller (2) is embedded with a metal reinforcing skeleton (3).

2. The high-temperature anti-deformation chemical pump according to claim 1, characterized in that: The metal assembly includes a first metal part (4) and a second metal part (5), wherein the first metal part (4) is mounted at the top opening of the second metal part (5).

3. A high-temperature anti-deformation chemical pump according to claim 2, characterized in that: The first metal part (4) and the second metal part (5) together form an internal skeleton to enhance the structural rigidity of the pump body.

4. A high-temperature anti-deformation chemical pump according to claim 2 or 3, characterized in that: The first metal part (4) and the second metal part (5) are disposed inside the pump body (1) and are completely covered by fluoroplastic, and are not exposed in the flow channel.

5. A high-temperature anti-deformation chemical pump according to claim 1, characterized in that: The impeller (2) is integrally molded from a fluoroplastic matrix and a metal reinforcing skeleton (3).

6. A high-temperature anti-deformation chemical pump according to claim 5, characterized in that: The structural outline of the metal reinforced skeleton (3) extends and is embedded inside the blade of the impeller (2).

7. A high-temperature anti-deformation chemical pump according to claim 1, characterized in that: The pump body (1) is provided with a clamping structure on the outside, which includes a side clamping plate A (6) and a side clamping plate B (7).

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