Liquid-phase water bath constant-temperature column oven

Abstract

The utility model relates to the technical field of water bath boxes, in particular to a liquid-phase water bath constant-temperature column oven which comprises a shell, a water bath cavity is formed in the shell, a chromatographic column is arranged in the water bath cavity, a water injection pipe communicated with the water bath cavity is arranged at the top of the shell, and a water outlet pipe communicated with the chromatographic column is arranged at the bottom of the shell. A discharge pipe communicated with the water bath cavity is arranged at the bottom of the shell; the heating structure is arranged on the surface of the shell, and the heating structure is used for heating the water bath medium in the water bath cavity; by arranging an auxiliary structure and a heating structure, scale can be scraped off in the using process, a guide groove formed in a connecting rod is used for collecting, and in cooperation with the auxiliary structure, the inclined face of a trigger rod can be extruded in the moving process of the connecting rod, so that the pressing effect on the trigger rod is achieved; furthermore, scale can be collected under the action of the auxiliary structure, generation of the scale in the water bath cavity is reduced, and the water bath effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of water bath technology, and in particular to a liquid phase water bath constant temperature column oven. Background Technology

[0002] Heating a liquid chromatography column is used to improve separation efficiency, increase separation sensitivity, and improve analysis speed. Heating can reduce the viscosity and surface tension of the solvent, promoting rapid mass transfer and diffusion of the sample within the column, thereby improving separation efficiency. Water bath heating can provide a more uniform heating environment, avoiding localized overheating or undercooling that could affect the use of the chromatographic column. However, water is usually used as the heating medium, and water heating can easily lead to scale precipitation, affecting the use of the water bath.

[0003] Therefore, a liquid phase water bath constant temperature column oven is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a liquid phase water bath constant temperature column oven to solve the above problems, thereby improving the problem that water heating easily causes scale precipitation, which affects the use of the water bath oven.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a liquid phase water bath constant temperature column oven, comprising:

[0006] The shell has a water bath chamber inside, a chromatographic column is installed inside the water bath chamber, a water injection pipe connected to the water bath chamber is installed at the top of the shell, and a discharge pipe connected to the water bath chamber is installed at the bottom of the shell.

[0007] A heating structure is disposed on the surface of the shell, and the heating structure is used to heat the water bath medium in the water bath chamber;

[0008] An auxiliary structure is disposed inside the discharge pipe, and the auxiliary structure is used to improve the performance of the heating structure.

[0009] The auxiliary structure includes a plugging rod threaded to the inner wall of the discharge pipe. The plugging rod has a receiving cavity inside and an inlet at the top of the plugging rod that communicates with the receiving cavity. The receiving cavity is connected to the water bath chamber through the inlet.

[0010] Preferably, a sealing block is slidably connected to the inner wall of the inlet, a trigger rod located inside the water bath cavity is fixedly connected to the top of the sealing block, the surface of the trigger rod is provided with an inclined surface, and an adjustment rod located inside the receiving cavity is fixedly connected to the bottom of the sealing block.

[0011] Preferably, a connecting plate is fixedly connected to the inner wall of the receiving cavity, and the lower end of the adjusting rod passes through the connecting plate and is fixedly connected to a sliding plate, the surface of which is slidably connected to the inner wall of the receiving cavity.

[0012] Preferably, a spring is fixedly connected to the top of the skateboard, and the top of the spring is fixedly connected to the bottom of the connecting plate.

[0013] Preferably, the heating structure includes a heating rod disposed inside the housing, and a heat-conducting plate is embedded in the inner bottom wall of the water bath cavity, the surface of the heat-conducting plate being in contact with the heating rod.

[0014] Preferably, the heating structure further includes a rotating ring rotatably connected to the bottom wall of the water bath chamber. The rotating ring has uniformly distributed drive blades fixedly connected to its surface, a connecting rod fixedly connected to its surface, a scraper fixedly connected to the other end of the connecting rod, and a guide groove formed on the surface of the connecting rod.

[0015] Preferably, the surface of the housing is provided with a pump body, the top of the pump body is connected to a water inlet pipe that communicates with the receiving cavity, and the bottom of the pump body is connected to a drain pipe that communicates with the receiving cavity.

[0016] The beneficial effects of this utility model are:

[0017] By setting up auxiliary and heating structures, scale can be scraped off during use and collected using the guide groove formed on the connecting rod. With the help of the auxiliary structure, the connecting rod can squeeze the inclined surface of the trigger rod during movement to achieve a pressing effect on the trigger rod. In turn, the scale can be collected under the action of the auxiliary structure, reducing the formation of scale inside the water bath chamber and improving the water bath effect.

[0018] By setting up a heating structure, the internal water flow can be enhanced, making the heating more uniform and avoiding the situation where the water in a traditional water bath is stagnant, leading to excessively high local temperatures. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the auxiliary structure of this utility model;

[0022] Figure 4 This is a schematic diagram showing the connection between the electric heating rod, the heat-conducting plate, and the shell of this utility model.

[0023] In the diagram: 1. Shell; 101. Chromatographic column; 2. Heating structure; 201. Pump body; 202. Inlet pipe; 203. Drain pipe; 204. Connecting rod; 205. Drive blade; 206. Rotary ring; 207. Heating rod; 208. Heat-conducting plate; 209. Scraper; 3. Auxiliary structure; 301. Blocking rod; 302. Trigger rod; 303. Blocking block; 304. Connecting plate; 305. Adjusting rod; 306. Slide plate; 307. Spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In practical implementation: such as Figure 1-4 As shown, a liquid phase water bath constant temperature column oven includes:

[0026] The shell 1 has a water bath chamber inside, and a chromatographic column 101 is installed inside the water bath chamber. A water injection pipe connected to the water bath chamber is installed at the top of the shell 1, and a discharge pipe connected to the water bath chamber is installed at the bottom of the shell 1.

[0027] Heating structure 2 is disposed on the surface of housing 1 and is used to heat the water bath medium in the water bath chamber;

[0028] Auxiliary structure 3 is located inside the discharge pipe and is used to improve the performance of heating structure 2.

[0029] The auxiliary structure 3 includes a plugging rod 301 threaded to the inner wall of the discharge pipe. The plugging rod 301 has a receiving cavity inside and an inlet opening at the top of the plugging rod 301 that communicates with the receiving cavity. The receiving cavity is connected to the water bath cavity through the inlet opening.

[0030] The water bath medium, usually water, is introduced into the water bath chamber and heated. The chromatographic column 101 is heated by the water bath. During this process, scale crystals will precipitate as the water is heated. The scale crystals can be introduced into the cavity through the inlet and stored under the combined action of the heating structure 2 and the auxiliary structure 3, reducing the possibility of them adhering to the inside of the water bath chamber and affecting the heating effect.

[0031] like Figure 1 , Figure 2 and Figure 3As shown, a sealing block 303 is slidably connected to the inner wall of the inlet. A trigger rod 302 located inside the water bath chamber is fixedly connected to the top of the sealing block 303. An inclined surface is provided on the surface of the trigger rod 302. An adjusting rod 305 located inside the receiving chamber is fixedly connected to the bottom of the sealing block 303.

[0032] A connecting plate 304 is fixedly connected to the inner wall of the receiving cavity. The lower end of the adjusting rod 305 passes through the connecting plate 304 and is fixedly connected to a sliding plate 306. The surface of the sliding plate 306 is slidably connected to the inner wall of the receiving cavity.

[0033] A spring 307 is fixedly connected to the top of the skateboard 306, and the top of the spring 307 is fixedly connected to the bottom of the connecting plate 304.

[0034] Under normal conditions, the sealing block 303 can block the inlet, thereby preventing the discharge of internally stored scale. By pressing down the trigger rod 302, the sealing block 303 can be moved to the inside of the receiving cavity. During this process, the adjusting rod 305 and the sliding plate 306 move synchronously and stretch the spring 307. At this time, scale crystals can be introduced from the inside of the water bath into the receiving cavity. After releasing the trigger rod 302, the sealing block 303 can be reset and block the inlet under the action of the spring 307.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, the heating structure 2 includes a heating rod 207 disposed inside the housing 1, and a heat-conducting plate 208 is embedded in the inner bottom wall of the water bath cavity, with the surface of the heat-conducting plate 208 in contact with the heating rod 207.

[0036] The heating structure 2 also includes a rotating ring 206 rotatably connected to the bottom wall of the water bath chamber. The surface of the rotating ring 206 is fixedly connected with uniformly distributed drive blades 205. The surface of the rotating ring 206 is fixedly connected with a connecting rod 204. The other end of the connecting rod 204 is fixedly connected with a scraper 209. The surface of the connecting rod 204 is provided with a guide groove.

[0037] The surface of the housing 1 is provided with a pump body 201. The top of the pump body 201 is connected to an inlet pipe 202 that is connected to the receiving cavity, and the bottom of the pump body 201 is connected to a drain pipe 203 that is connected to the receiving cavity.

[0038] By activating the heating rod 207, which generates heat after being powered on, the heat is conducted to the water bath cavity via the heat conduction plate 208 to heat the water bath medium. The temperature of the heating rod 207 is adjusted according to actual needs to ensure constant temperature heating of the water bath medium. Simultaneously, by activating the pump body 201 (a water pump), water is drawn from the upper part through the inlet pipe 202 and introduced to the lower part through the drain pipe 203, allowing the water heated by the heating rod 207 to flow and enhancing the heating effect within the water bath cavity. The fluidity of the water makes the heating more uniform, avoiding the situation where the water in a traditional water bath is stagnant and causes local overheating. At the same time, the discharged water can drive the drive blade 205 to rotate, which in turn drives the rotating ring 206 to rotate. During this process, the inner wall of the water bath chamber is cleaned by the connecting rod 204 and the scraper 209, reducing scale adhesion. The guide groove is designed to facilitate the collection of scraped scale. As the connecting rod 204 moves, it can squeeze the inclined surface of the trigger rod 302 to achieve the pressing effect of the trigger rod 302.

[0039] In use, this invention utilizes the electric heating rod 207. Once energized, the heating rod 207 generates heat, which is then conducted to the water bath cavity via the heat-conducting plate 208 to heat the water bath medium. The pump body 201, through its inlet pipe 202, draws water from the upper part of the water bath and directs it to the lower part through the drain pipe 203. This allows the water heated by the heating rod 207 to flow, enhancing the fluidity of the water within the water bath cavity and resulting in more uniform heating. This avoids the problem of stagnant water in traditional water baths, which can lead to localized overheating. Simultaneously, the discharged water can drive the drive blade 205 to rotate, which in turn drives the rotating ring 206 to rotate. During this process, the inner wall of the water bath chamber is cleaned by the connecting rod 204 and the scraper 209, reducing scale adhesion. The guide groove facilitates the collection of scraped scale. As the connecting rod 204 moves, it can squeeze the inclined surface of the trigger rod 302 to achieve a squeezing effect on the trigger rod 302. Then, with the help of the auxiliary structure 3, scale can be collected, reducing the formation of scale inside the water bath chamber and improving the water bath effect.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A liquid bath thermostatic column oven, characterized in that, Include: The shell (1), the inside of the shell (1) is provided with a water bath cavity, the inside of the water bath cavity is provided with a chromatographic column (101), the top of the shell (1) is provided with a water injection pipe communicated with the water bath cavity, the bottom of the shell (1) is provided with a discharge pipe communicated with the water bath cavity; Heating structure (2), the heating structure (2) is arranged on the surface of the shell (1), the heating structure (2) is used for heating the water bath medium in the water bath cavity; Auxiliary structure (3), the auxiliary structure (3) is arranged in the inside of the discharge pipe, the auxiliary structure (3) is used for improving the use effect of the heating structure (2); Wherein, the auxiliary structure (3) includes a sealing rod (301) screwed on the inner wall of the discharge pipe, the inside of the sealing rod (301) is provided with a containing cavity, the top of the sealing rod (301) is provided with a guide inlet communicated with the containing cavity, the containing cavity is communicated with the water bath cavity through the guide inlet.

2. The liquid bath thermostatic column oven according to claim 1, characterized in that: The inner wall of the guide inlet is slidably connected with a sealing block (303), the top of the sealing block (303) is fixedly connected with a trigger rod (302) located in the inside of the water bath cavity, the surface of the trigger rod (302) is provided with an inclined surface, the bottom of the sealing block (303) is fixedly connected with an adjusting rod (305) located in the inside of the containing cavity.

3. The liquid bath thermostatic column oven according to claim 2, characterized in that: The inner wall of the containing cavity is fixedly connected with a connecting plate (304), the lower end of the adjusting rod (305) penetrates through the connecting plate (304) and is fixedly connected with a sliding plate (306), the surface of the sliding plate (306) is slidably connected with the inner wall of the containing cavity.

4. The liquid bath thermostatic column oven according to claim 3, characterized in that: The top of the sliding plate (306) is fixedly connected with a spring (307), the top of the spring (307) is fixedly connected with the bottom of the connecting plate (304).

5. The liquid bath thermostatic column oven of claim 1, wherein: The heating structure (2) includes an electric heating rod (207) arranged in the inside of the shell (1), the inner bottom wall of the water bath cavity is embeddedly installed with a heat conduction plate (208), the surface of the heat conduction plate (208) is in contact with the electric heating rod (207).

6. The liquid bath thermostatic column oven according to claim 5, characterized in that: The heating structure (2) further includes a rotating ring (206) rotatably connected with the inner bottom wall of the water bath cavity, the surface of the rotating ring (206) is fixedly connected with uniformly distributed driving leaves (205), the surface of the rotating ring (206) is fixedly connected with a connecting rod (204), the other end of the connecting rod (204) is fixedly connected with a scraping rod (209), the surface of the connecting rod (204) is provided with a guide groove.

7. The liquid bath thermostatic column oven according to claim 6, wherein: The surface of the shell (1) is provided with a pump body (201), the top of the pump body (201) is communicated with a water inlet pipe (202) communicated with the containing cavity, the bottom of the pump body (201) is communicated with a drain pipe (203) communicated with the containing cavity.

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