A working chamber

Abstract

This utility model relates to a working chamber, including a pot body with an open top, the pot body being made of metal. The pot body includes side plates and a bottom plate integrally connected. A metal pipe is embedded within the bottom plate. One end of the metal pipe is connected to a first connector, which extends downwards out of the pot body. The other end of the metal pipe is connected to a second connector, which also extends downwards out of the pot body. This utility model provides a working chamber with higher heat exchange efficiency. Because the metal pipe is embedded within the bottom plate of the pot body, it is less susceptible to oxidation and corrosion, and no insulation layer is required around the metal pipe, simplifying the structure of the working chamber and saving manufacturing costs.

Description

Technical Field

[0001] This utility model relates to working chambers, and more particularly to working chambers suitable for equipment such as centrifuges, concentrators or incubators, belonging to the field of experimental equipment. Background Technology

[0002] Centrifuges, concentrators, and incubators typically include a working chamber, usually made of metal. A cover is installed on top of the working chamber to form a relatively independent working space. A rotor or other structures can be installed within this chamber. Temperature and other conditions within the working chamber often need to be controlled according to application requirements to perform centrifugation, concentration, or isothermal processing under specific temperature conditions. One common practice in existing technologies to control the temperature within the working chamber (such as a stainless steel cylinder) is to spiral metal pipes along its outer wall. Temperature-controlled liquids or gases are injected into these pipes for heat exchange, and the pipes are then covered with insulation material. This approach has relatively poor heat exchange efficiency, and its cooling or heating effects have room for improvement. It also consumes a lot of energy. Furthermore, the insulation material has poor sealing performance and is prone to aging, while the metal pipes are susceptible to moisture, oxidation, and corrosion damage.

[0003] Chinese utility model patent CN222866342U discloses a vacuum centrifuge concentrator, including a frame housing. A partition plate is fixed between the inner walls on both sides of the frame housing. A drive motor is located below the partition plate. A vacuum pump and a low-temperature cold trap are respectively located on both sides of the drive motor. A cast aluminum pot (i.e., the working chamber) is also located inside the frame housing. A touch screen and a push-pull door handle are also located on the top of the frame housing. A vibration damping device is also provided on the partition plate. It can centrifuge samples by drawing a vacuum into a large, sealed cast aluminum pot and using a horizontal rotor. The cast aluminum pot is equipped with a cooling plate and a far-infrared heating tile, and an external low-temperature cold trap captures and prevents biological contamination. This solves the problems of temperature control and boiling over during sample concentration, ensuring the concentration effect. It also provides both cooling and infrared heating, meeting various experimental requirements such as freeze-drying and concentration. The patented cooling element and far-infrared heating tile are installed inside the cast aluminum pot, which only slightly improves the heat exchange efficiency. Furthermore, the cooling element and far-infrared heating tile inevitably occupy a certain amount of space in the cast aluminum pot, affecting the compactness of the overall structural layout inside the cast aluminum pot. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a working chamber with higher heat exchange efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A working chamber includes a pot body with a top opening, the pot body being made of metal material, the pot body including a side plate and a bottom plate integrally connected, a metal pipe embedded in the bottom plate, one end of the metal pipe being connected to a first connector extending downward to the outside of the pot body, and the other end of the metal pipe being connected to a second connector extending downward to the outside of the pot body.

[0006] Therefore, the metal pipes are embedded in the base plate, and heat exchange media such as liquids or gases can be introduced into the metal pipes through joints. The metal pipes are in close contact with the metal base plate, achieving good heat exchange between the heat exchange media, the metal pipes, and the pot body, improving heat exchange efficiency and keeping the inner cavity of the pot within the target temperature range. The joints facilitate the connection between the metal pipes and the refrigeration or heating units of equipment such as centrifuges, concentrators, and incubators. They also allow for easy disassembly and assembly of the working chamber from the main structure of equipment such as centrifuges, concentrators, and incubators, facilitating equipment maintenance.

[0007] In application, the above-mentioned working chamber can be installed in the corresponding position of equipment such as centrifuges, concentrators, or incubators to provide a suitable temperature environment for centrifugation, concentration, and constant temperature operations.

[0008] Furthermore, the metal material is one of zinc alloy and aluminum alloy, preferably aluminum alloy.

[0009] Furthermore, the metal pipe is a copper pipe. On the one hand, copper pipe has good thermal conductivity, which helps to further improve heat exchange efficiency; on the other hand, copper has a high melting point, which makes it easy to cast the aluminum alloy pot body and the metal pipe together (such as low-pressure casting), thereby facilitating the manufacture of the working chamber.

[0010] Furthermore, the metal pipe is coiled, forming a coil. This increases the contact area between the metal pipe and the base plate, further improving heat exchange efficiency.

[0011] Furthermore, the first connector and the second connector are located on the outer and inner sides of the coil, respectively, or both the first connector and the second connector are located on the outer or inner side of the coil.

[0012] Furthermore, the connector is a threaded connector.

[0013] Furthermore, at least one reinforcing rib is provided on the outer wall of the side plate, and the reinforcing rib is integrally connected to the side plate. This better ensures the structural strength of the pot body.

[0014] Furthermore, the reinforcing rib is provided with a through hole communicating with the inner cavity of the pot body. Therefore, there is no need to worry that the through hole will have a significant adverse impact on the structural strength of the pot body, which helps to reduce the requirement for the thickness of the side plates and saves materials.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The heat exchange efficiency of the working cavity of this utility model is higher.

[0016] (2) The metal pipe of this utility model is embedded in the bottom plate of the pot body. The metal pipe is not easily oxidized and corroded, nor is it easily damaged by external forces. Moreover, the metal pipe does not need to be wrapped with a heat insulation layer, and does not need to occupy space, which helps to simplify the structure of the working chamber and save manufacturing costs.

[0017] (3) The working cavity of this utility model has a more beautiful and neat appearance. Attached Figure Description

[0018] Figure 1 This is a perspective view of the working cavity of the first embodiment of this utility model.

[0019] Figure 2 This is a three-dimensional rendering of the working cavity of the first embodiment of this utility model.

[0020] Figure 3 This is a perspective view of the metal pipe of the working chamber in the first embodiment of this utility model.

[0021] Figure 4 This is a three-dimensional rendering of the metal pipe of the working chamber in the first embodiment of this utility model.

[0022] Figure 5 This is a perspective view of the metal pipe of the working chamber in the second embodiment of this utility model.

[0023] Figure 6 This is a three-dimensional rendering of the metal pipe of the working chamber in the second embodiment of this utility model.

[0024] Figure 7 This is a three-dimensional rendering of the working cavity of the third embodiment of this utility model.

[0025] Figure 8 This is a partial sectional view of the base plate of the first embodiment of this utility model. Detailed Implementation

[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0027] See Figure 1 and Figure 2A working chamber for a vacuum centrifugal concentrator includes a pot body 1 with a top opening, the pot body 1 being made of metal. The pot body 1 includes a side plate 101 and a bottom plate 102. The side plate is cylindrical, and the side plate 101 and the bottom plate 102 are integrally connected. A metal pipe 2 is embedded in the bottom plate 102 (see...). Figure 8 The metal pipe 2 has a first connector 3 welded to its inlet end, extending downwards to the outside of the pot body 1. The metal pipe 2 also has a second connector 4 welded to its outlet end, extending downwards to the outside of the pot body 1. A mounting hole 7 is provided at the center of the base plate 102 to allow the output shaft of the drive motor for the vacuum centrifugal concentrator to pass through the mounting hole and extend into the pot body 1. The output shaft and the mounting hole are rotatably and sealingly connected. The connector is a threaded connector (through-plate pipe connector). Threaded holes are provided on the base plate to facilitate the installation of other equipment and to easily fix the working chamber at the target position of the vacuum centrifugal concentrator. An annular groove is provided at the top of the side wall 101, and a sealing ring is provided within the annular groove to facilitate the engagement of the working chamber with the cover plate of the vacuum centrifugal concentrator, maintaining a vacuum or positive pressure state inside the pot.

[0028] The metal material is aluminum alloy. The metal pipe 2 is a copper pipe.

[0029] The metal pipe 2 is spiral-shaped (vortex-like spiral), forming a coil. See also Figure 3 and Figure 4 After the metal pipe 2 is folded in half, it spirals outwards in a vortex pattern within the plane, forming a coil. At this point, both the first connector 3 and the second connector 4 are located on the outer side of the coil; or, see... Figure 5 and Figure 6 Starting from the end where the second joint 4 is located on the metal pipe, the coil spirals outward from the inside to the outside in the plane, forming a coil. At this time, the first joint 3 and the second joint 4 are located on the outside and inside of the coil, respectively.

[0030] Four reinforcing ribs 5 are provided on the outer wall of the side plate 101. The reinforcing ribs 5 are integrally connected with the side plate 101. The four reinforcing ribs 5 are evenly distributed along the circumference of the side plate 101 and extend in the vertical direction.

[0031] The reinforcing rib 5 has a through hole 6 communicating with the inner cavity of the pot body 1, which facilitates the safe and stable installation of vacuum equipment or temperature sensors and other detection elements. Optionally, see... Figure 7 The device has multiple through holes, which facilitates the safe and secure installation of vacuum equipment and temperature sensors and other detection components.

[0032] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present invention by those skilled in the art in various equivalent forms fall within the scope defined by the appended claims.

Claims

1. A working chamber comprising a pot body (1) with a top opening, the pot body (1) being made of metal, the pot body (1) comprising a side plate (101) and a bottom plate (102), the side plate (101) and the bottom plate (102) being integrally connected, characterized in that, A metal pipe (2) is embedded in the base plate (102). One end of the metal pipe (2) is connected to a first connector (3), which extends downward to the outside of the pot body (1). The other end of the metal pipe (2) is connected to a second connector (4), which extends downward to the outside of the pot body (1).

2. The working chamber according to claim 1, characterized in that, The metal material is either a zinc alloy or an aluminum alloy.

3. The working chamber according to claim 1, characterized in that, The metal pipe (2) is a copper pipe.

4. The working chamber according to any one of claims 1-3, characterized in that, The metal pipe (2) is coiled, forming a coil.

5. The working chamber according to claim 4, characterized in that, The first connector (3) and the second connector (4) are located on the outside and inside of the coil, respectively, or both the first connector (3) and the second connector (4) are located on the outside or inside of the coil.

6. The working chamber according to any one of claims 1-3, characterized in that, The connector is a threaded connector.

7. The working cavity according to any one of claims 1-3, characterized in that, At least one reinforcing rib (5) is provided on the outer wall of the side plate (101), and the reinforcing rib (5) is integrally connected with the side plate (101).

8. The working chamber according to claim 7, characterized in that, The reinforcing rib (5) is provided with a through hole (6) that communicates with the inner cavity of the pot body (1).

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