Sterile rotor pump
By setting up an annular gas tank and sealing ring structure in the rotor pump, and using steam disinfection and sealing gaps to isolate bacteria, the problem of sterile environment of the rotor pump chamber is solved, ensuring the safety and hygiene of the medium.
Patent Information
- Application Number
- CN202422314373.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Existing rotor pumps are difficult to maintain the sterile environment of the pump chamber when conveying the medium, which affects the safety and hygiene of the medium.
A sterile rotor pump is designed, with an annular air tank on the pump body, and the air inlet and outlet are in communication with the annular air tank. The steam is sterilized and disinfected through the annular air tank, and a sealing gap is formed through the sealing ring to isolate bacterial invasion.
It realizes the sterile environment of the pump chamber, ensures the safety and hygiene of the medium, and improves the hygiene status of the pump.
Smart Images
Figure CN223241609U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pumps, and more specifically to an aseptic rotor pump. Background Art
[0002] A rotary positive displacement pump uses the relative motion between the rotor and pump body to change the working volume, thereby conveying liquids. This pump exhibits positive displacement, meaning its flow rate is independent of changes in back pressure. Its compact structure and small size make it suitable for conveying high-viscosity media, and it is widely used in the food, medical, and petroleum and petrochemical industries. To ensure the safety and sanitation of the conveyed media, the pump cavity must be kept clean, ensuring that the media is conveyed in a sterile environment. Consequently, there is a growing market demand for the development of sterile rotary pumps. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a sterile rotor pump, which can maintain the pump cavity of the pump body in a sterile environment and ensure the safety and hygiene of the conveying medium.
[0004] The technical solution of the present utility model is to provide a sterile rotor pump with the following structure, including a pump body and a pump cover, a pump cavity is provided in the pump body, the pump cover is connected to one end of the pump body and covers the opening of the pump cavity, an annular air groove is provided on the end face of the pump body close to the pump cover, and the annular air groove surrounds the outside of the opening of the pump cavity; an air inlet and an air outlet are provided on the pump body, and the air inlet and the air outlet are both connected to the annular air groove; the pump cover covers the opening of the annular air groove; gas can enter from the air inlet, pass through the annular air groove, and be discharged from the air outlet.
[0005] After adopting the above structure, the sterile rotor pump of the utility model has the following advantages compared with the prior art:
[0006] Because the aseptic rotor pump of the present invention has an annular air groove on the end face of the pump body, surrounding the outer side of the opening of the pump cavity, once the pump is assembled, steam enters through the air inlet, passes through the annular air groove, and is discharged from the air outlet, sterilizing the connection between the pump cover and the pump body. This method maintains the pump cavity in a sterile environment, ensuring the safety and sanitation of the conveyed medium.
[0007] As an improvement, a first sealing ring and a second sealing ring are provided between the end face of the pump body and the end face of the pump cover. The first and second sealing rings are respectively provided on either side of the annular air groove. A closed gap is formed between the first and second sealing rings, and the closed gap is connected to the annular air groove. With this structure, an isolation ring is formed in the closed gap, preventing bacteria from entering the pump body and improving the sanitary environment of the pump body.
[0008] As an improvement, the end surface of the pump cover is provided with a first embedding groove and a second embedding groove. One side of the first sealing ring is embedded in the first embedding groove, and the other side of the first sealing ring abuts the end surface of the pump body; one side of the second sealing ring is embedded in the second embedding groove, and the other side of the second sealing ring abuts the end surface of the pump body. With this structure, the assembly structure of the first and second sealing rings is simple, and the sealing effect is good.
[0009] As an improvement, the air inlet and the air outlet are located on the same side of the pump body or the air inlet and the air outlet are located on both sides of the pump body. With this structure, the structural design is more reasonable.
[0010] As an improvement, the air inlet is provided with an air inlet joint, and the air outlet is provided with an air outlet joint. With this structure, it is convenient to connect the air inlet and the air outlet with the pipeline.
[0011] As an improvement, the pump body is provided with a first cavity and a second cavity, the first cavity is provided with a first rotor assembly, and the second cavity is provided with a second rotor assembly; the annular air groove surrounds the outside of the first cavity and the second cavity. This structure is simple.
[0012] As an improvement, a first rotor nut is provided on the outside of the first cavity, connected to the first rotor assembly; a second rotor nut is provided on the outside of the second cavity, connected to the second rotor assembly; a first groove and a second groove are provided on the end surface of the pump cover, and the first and second rotor nuts are respectively embedded in the first and second grooves; the first and second grooves are both located on the inner side of the first embedding groove. With this structure, the pump body and pump cover are compact, and the installation is stable and secure. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic cross-sectional view of the aseptic rotor pump of the present invention.
[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the pump body of the sterile rotor pump of the present utility model.
[0015] Figure 3 This is a schematic cross-sectional structural diagram of the pump body of the sterile rotor pump of the present utility model.
[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the pump cover of the sterile rotor pump of the present utility model.
[0017] Figure 5 This is a schematic cross-sectional structural diagram of the pump cover of the sterile rotor pump of the present utility model.
[0018] Shown in the figure: 1. Pump body, 101. First cavity, 102. Second cavity, 103. First rotor, 104. Second rotor, 105. First rotor nut, 106. First rotating shaft, 107. Second rotor nut, 108. Second rotating shaft, 109. Annular air groove, 110. Air inlet, 111. Air outlet, 2. Pump cover, 201. First groove, 202. Second groove, 203. First embedded groove, 204. Second embedded groove, 3. Air inlet connector, 4. Air outlet connector, 5. First sealing ring, 6. Second sealing ring. DETAILED DESCRIPTION
[0019] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.
[0020] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.
[0021] It should also be understood that the terms “comprises,” “includes,” “has,” and “includes,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.
[0022] like Figures 1 to 5 As shown, the present application discloses an aseptic rotor pump, comprising a pump body 1 and a pump cover 2. A pump cavity is provided in the pump body 1, and the pump cover 2 is connected to one end of the pump body 1 and covers the opening of the pump cavity.
[0023] The pump body 1 is provided with a first cavity 101 and a second cavity 102, which are interconnected. A first rotor 103 is provided within the first cavity 101, and a second rotor 104 is provided within the second cavity 102. The first rotors 103 of the first rotor 103 group and the second rotors 104 of the second rotor 104 group are meshed with each other. A driving mechanism drives the first rotor 103 group to rotate, while the rotors of the first rotor 103 group drive the rotors of the second rotor 104 group to rotate.
[0024] A first rotor nut 105 is provided on the outside of the first cavity 101. The first rotor nut 105 is connected to the first rotating shaft 106 of the first rotor 103 group and limits the position of the first rotor 103. A second rotor nut 107 is provided on the outside of the second cavity 102. The second rotor nut 107 is connected to the second rotating shaft 108 of the second rotor 104 group and limits the position of the second rotor 104. A first groove 201 and a second groove 202 are provided on the end surface of the pump cover 2. The first rotor nut 105 and the second rotor nut 107 are respectively embedded in the first groove 201 and the second groove 202.
[0025] The pump body 1 is provided with an annular air groove 109 on the end surface close to the pump cover 2. The annular air groove 109 surrounds the outside of the opening of the pump cavity, that is, the annular air groove 109 surrounds the outside of the first cavity 101 and the second cavity 102. The pump body 1 is provided with an air inlet 110 and an air outlet 111, and both the air inlet 110 and the air outlet 111 are connected to the annular air groove 109. The air inlet 110 and the air outlet 111 are located on the same side of the pump body 1 or are located on both sides of the pump body 1. The air inlet 110 is provided with an air inlet connector 3, and the air outlet 111 is provided with an air outlet connector 4.
[0026] A first sealing ring 5 and a second sealing ring 6 are provided between the end face of the pump body 1 and the end face of the pump cover 2. The first sealing ring 5 and the second sealing ring 6 are respectively provided on both sides of the annular air groove 109. A closed gap is formed between the first sealing ring 5 and the second sealing ring 6, and the closed gap is connected to the annular air groove 109. The first sealing ring 5 is closer to the pump cavity than the second sealing ring 6. The first groove 201 and the second groove 202 are both located on the inner side of the first sealing ring 5. A first embedding groove 203 and a second embedding groove 204 are provided on the end face of the pump cover 2. One side of the first sealing ring 5 is embedded in the first embedding groove 203 and the other side of the first sealing ring 5 is against the end face of the pump body 1; one side of the second sealing ring 6 is embedded in the second embedding groove 204 and the other side of the second sealing ring 6 is against the end face of the pump body 1.
[0027] The present application discloses a sterile rotor pump. When in use, an air inlet pipe is connected to the air inlet connector 3, and an air outlet pipe is connected to the air outlet connector 4. Steam enters the air inlet pipe, passes through the annular air groove 109, and is discharged from the air outlet pipe. A steam barrier is formed at the sealing gap to prevent bacteria from entering the pump cavity, thereby improving the sanitation of the pump operating environment.
[0028] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the scope of protection of the present invention.
Claims
1. A sterile rotor pump comprising a pump body and a pump cover, wherein the pump body is provided with a pump chamber, the pump cover is connected to one end of the pump body and covers an opening of the pump chamber, and is characterized in that: The pump body is provided with an annular air groove on the end face close to the pump cover, and the annular air groove surrounds the outside of the opening of the pump chamber; the pump body is provided with an air inlet and an air outlet, and the air inlet and the air outlet are both connected to the annular air groove; the pump cover covers the opening of the annular air groove; gas can enter from the air inlet, pass through the annular air groove, and then be discharged from the air outlet.
2. The sterile rotor pump according to claim 1, characterized in that: A first sealing ring and a second sealing ring are provided between the end face of the pump body and the end face of the pump cover, and the first sealing ring and the second sealing ring are respectively provided on both sides of the annular air groove; a closed gap is formed between the first sealing ring and the second sealing ring, and the closed gap is connected to the annular air groove.
3. The sterile rotor pump according to claim 2, characterized in that: A first embedding groove and a second embedding groove are provided on the end face of the pump cover, one side of the first sealing ring is embedded in the first embedding groove and the other side of the first sealing ring is against the end face of the pump body; one side of the second sealing ring is embedded in the second embedding groove and the other side of the second sealing ring is against the end face of the pump body.
4. The sterile rotor pump according to claim 1, characterized in that: The air inlet and the air outlet are located on the same side of the pump body, or the air inlet and the air outlet are located on two sides of the pump body respectively.
5. The sterile rotor pump according to claim 1, characterized in that: The air inlet is provided with an air inlet joint, and the air outlet is provided with an air outlet joint.
6. The sterile rotor pump according to claim 3, characterized in that: The pump body is provided with a first cavity and a second cavity, the first cavity is provided with a first rotor group, and the second cavity is provided with a second rotor group; the annular air groove surrounds the outside of the first cavity and the second cavity.
7. The sterile rotor pump according to claim 6, characterized in that: A first rotor nut is provided on the outside of the first cavity, and the first rotor nut is connected to the first rotor assembly; a second rotor nut is provided on the outside of the second cavity, and the second rotor nut is connected to the second rotor assembly; a first groove and a second groove are provided on the end surface of the pump cover, and the first rotor nut and the second rotor nut are respectively embedded in the first groove and the second groove; the first groove and the second groove are both located on the inner side of the first embedding groove.