CN204816492U - Easily operate low energy consumption hydrothermal reaction vessel - Google Patents

Abstract

The utility model discloses an easy-to-operate low-energy-consumption hydrothermal reaction kettle, which comprises a kettle body, a heat conduction layer, a gas combustion chamber and a thermal insulation layer. The heat conduction layer is evenly distributed on the outer wall of the kettle body, and the gas combustion chamber is arranged between the heat conduction layer and the Between the insulation layers, the gas combustion chamber is provided with a combustion gas inlet, an air inlet, an ignition hole and a gas outlet. In the hydrothermal reaction kettle of the present utility model, the heat conduction layer is evenly distributed on the outer wall of the kettle body, and the heating is uniform to avoid local overheating; the heat generated by gas combustion is directly transmitted to the inside of the kettle body through the heat conduction layer, and the heat conduction efficiency is high; at the same time, The gas combustion chamber and the kettle body are in an integrated structure, which saves space, not only has a high space utilization rate, but also can avoid the heat loss generated by the external heating device in the heat transmission link in the prior art, saving energy consumption; the other side of the gas combustion chamber is The insulation layer prevents the loss of heat generated by gas combustion and ensures a high utilization rate of heat, thereby reducing energy consumption.

Description

An easy-to-operate low-energy hydrothermal reactor

technical field

The utility model relates to the technical field of chemical equipment, in particular to an easy-to-operate low-energy hydrothermal reaction kettle.

Background technique

Hydrothermal reaction kettle , also known as polymerization reactor , digestion tank , high-pressure digestion tank , high- pressure tank, hydrothermal synthesis reactor , etc., is a closed container that can decompose insoluble substances . Reaction vessels for organic synthesis , hydrothermal synthesis , crystal growth or sample digestion and extraction. Therefore, hydrothermal reactors are widely used in research and production in petrochemical, biomedical, material science , geochemistry, environmental science , food science, commodity inspection and other departments.

At present, the more commonly used hydrothermal reaction kettles usually include a cylindrical stainless steel tank body, a cover that is threaded with it, and a polytetrafluoroethylene liner placed in the inner cavity. In order to facilitate the removal of the liner after the reaction is completed, the tank The bottom of the body is not an integral structure, but a concentric circular hole is provided at the bottom, and a gasket larger than the radius is provided above the circular hole. In addition, when using a hydrothermal reaction kettle, the lid of the kettle needs to be opened before and after each reaction. On the one hand, the operation is cumbersome; The tightness of the reaction kettle is difficult to guarantee, and the leakage of the reaction substance is prone to occur, which affects the experimental detection data. For example, the hydrothermal reaction kettle disclosed by the publication number CN104525050A has the above-mentioned defects.

In addition, the current hydrothermal reactor is generally heated by an external oven or electric heating, which not only heats unevenly, but also consumes high energy consumption, which affects the large-scale use of the equipment. For example, the publication number is CN101596440A, which discloses a polymerization reaction kettle for polymer materials. The kettle body is provided with a heating jacket and an insulating layer, wherein the heating jacket is provided with a spiral flow channel, and the spiral flow channel has a heat-conducting oil inlet and a heat-conducting At the oil outlet, the heated heat transfer oil flows continuously in the spiral flow channel. For the reaction kettle with this structure, firstly, the spiral flow channel is distributed on the kettle body in a spiral manner, and the heating inside the kettle body is not uniform; secondly, the heating equipment for heating the heat transfer oil is separated from the kettle body, It takes up a lot of space; finally, if the flow rate of the heat transfer oil in the spiral channel is too slow, the temperature of the heat transfer oil will gradually decrease, which cannot guarantee the reaction temperature inside the kettle body. If the flow rate of the heat transfer oil is too fast, the temperature of the heat transfer oil will not be controlled by the kettle body All of them are absorbed and utilized, and after flowing out of the heat transfer oil outlet, the excess heat is released into the air, resulting in a waste of resources.

Contents of the invention

The technical problem to be solved by the utility model is to provide a hydrothermal reaction kettle with uniform heating, low energy consumption, and convenient addition and discharge of reactants and media.

In order to solve the above-mentioned technical problems, the technical scheme provided by the utility model is as follows: an easy-to-operate low-energy-consumption hydrothermal reaction kettle, including a kettle body, is characterized in that it also includes a heat-conducting layer, a gas combustion chamber and a heat preservation layer, the heat conduction layer is evenly distributed on the outer wall of the kettle body, the gas combustion chamber is arranged between the heat conduction layer and the insulation layer, and the gas combustion chamber is provided with a combustion gas inlet, an air inlet, an ignition hole and a gas outlet .

Further, the heat conduction layer includes a sealed cavity and heat conduction oil injected into the cavity.

Further, the heat transfer oil is tetramethyl silicone oil.

Further, the upper part of the kettle body is sealed, the bottom of the kettle body is a conical structure, and a feed inlet is provided on the kettle body, and a sealing valve 1 is provided on the feed inlet, and the tapered shape of the kettle body There is a discharge port at the bottom, and a sealing valve 2 is provided on the discharge port.

Further, it also includes a stirring device, which includes a transmission rod arranged inside the kettle body, a stirring paddle arranged on the transmission rod and a driving device for driving the rotation of the transmission rod, and the driving device is arranged outside the kettle body .

Further, the stirring paddle adopts at least one of axial flow paddle, radial flow paddle or mixed flow paddle.

Further, the gap between the stirring paddle and the inner wall of the kettle is less than 1 cm.

Further, a temperature measuring device is also included, and the temperature measuring device includes a thermometer sleeve arranged inside the kettle body and a thermometer located in the thermometer sleeve.

Further, it also includes a pressure gauge for detecting the internal pressure of the kettle body.

Further, the cone angle of the conical bottom of the kettle body is in the range of 30°-160°.

Compared with the prior art, the utility model has the following technical advantages:

(1) The heat conduction layer is evenly distributed on the outer wall of the kettle body, heating evenly, and avoiding local overheating;

(2) The heat conduction layer is used as the inner wall of the gas combustion chamber, and the heat generated by the gas combustion is directly transferred to the inside of the kettle body through the heat conduction layer, so the heat conduction efficiency is high; at the same time, the gas combustion chamber and the kettle body are an integrated structure, which saves space and not only The space utilization rate is high, and the heat loss generated by the external heating device in the heat transmission link in the prior art can be avoided, saving energy consumption;

(3) The other side of the gas combustion chamber is an insulation layer to prevent the loss of heat generated by gas combustion and ensure a high utilization rate of heat, thereby reducing energy consumption;

(4) The upper part of the kettle body is sealed, and the bottom is a conical structure. At the same time, both the inlet and outlet are equipped with sealing valves. This structure is more convenient for adding and discharging reaction materials and media, and avoids troubles caused by intermittent reaction operations. Defects that lead to poor airtightness.

Description of drawings

Fig. 1 is the structural representation of the present embodiment hydrothermal reactor;

Explanation of reference signs: 1-driving device, 2-feed inlet, 3-transmission rod, 4-kettle body, 5-heat conduction layer, 6-gas combustion chamber, 7-insulation layer, 8-gas outlet, 9 -combustion gas inlet, 10-air inlet, 11-outlet, 12-sealing valve two, 13-stirring paddle, 14-ignition hole, 15-pressure gauge, 16-temperature measuring device, 17-sealing valve one.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner" and "outer" are based on the The orientation or positional relationship is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a reference to the utility model. limits.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, an integral connection, It can also be a detachable connection; it can be the internal communication of two elements; it can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the above terms in the present utility model specific meaning.

As shown in FIG. 1 , an easy-to-operate low-energy hydrothermal reaction kettle in this embodiment includes a kettle body 4 , a stirring device, a temperature measuring device 16 and a pressure gauge 15 for detecting the internal pressure of the kettle body 4 . Wherein the upper part of the kettle body 4 is sealed, and the bottom is a conical structure, and the cone angle range of the conical bottom is 30°~160°. The above-mentioned kettle body 4 is also provided with a feed inlet 2 and a discharge outlet 11. In order to ensure the tightness of the kettle body 4, the above-mentioned feed inlet 2 and the discharge outlet 11 are respectively provided with a sealing valve one 17 and a sealing valve two. 12. Wherein the feeding port 2 is arranged on the top of the kettle body 4, and for the convenience of discharging, the feeding port 11 is arranged at the conical bottom. In the hydrothermal reactor with this structure, the reaction materials and reaction medium can be added through the feed port 2, and the residual substances after the reaction can be discharged through the discharge port 11. Troublesome operation leads to poor airtightness.

Further, the stirring device of the present embodiment includes a transmission rod 3 disposed inside the kettle body 4, a stirring paddle 13 disposed on the transmission rod 3, and a drive device 1 for driving the transmission rod 3 to rotate, and the drive device 1 is located on The outside of kettle body 1 preferably adopts a motor. The stirring paddles 13 in this embodiment can adopt various forms of paddles, such as axial flow paddles, radial flow paddles or mixed flow paddles. It should be noted that the gap between the stirring paddle 13 and the inner wall of the kettle is less than 1 cm. The purpose is that the stirring paddle plays a role of scraping the wall during the rotation process, which is beneficial to the renewal of the liquid at the inner wall of the kettle and improves the heat transfer efficiency. Avoid thermal degradation of raw materials near the inner wall.

Further, the temperature measuring device 16 of this embodiment includes a thermometer sleeve disposed inside the kettle body and a thermometer located in the thermometer sleeve, so as to monitor the temperature in the kettle body in real time.

As the most important improvement of this embodiment, a heat conduction layer 5, a gas combustion chamber 6 and a thermal insulation layer 7 are sequentially arranged outside the kettle body 4, wherein the heat conduction layer 5 is evenly distributed on the outer wall of the kettle body 4, and the heat conduction layer 5 The bonding area with the outer wall of the kettle is relatively large. In addition, the gas combustion chamber 6 is disposed between the heat conduction layer 5 and the heat preservation layer 7 , and the heat conduction layer 5 and the heat preservation layer 7 serve as inner walls forming the gas combustion chamber 6 . Above-mentioned gas combustion chamber 6 is provided with combustion gas inlet 9, air inlet 10, ignition hole 14 and gas outlet 8, and wherein combustion gas inlet 9, air inlet 10 and ignition hole 14 are located at the bottom of gas combustion chamber 6, outside the gas The discharge port 8 is located on the upper part of the gas combustion chamber 6 . The selection of combustible gas is not limited in this embodiment.

In this embodiment, preferably, the heat conduction layer 5 includes a closed cavity and heat conduction oil injected into the cavity, wherein the heat conduction oil is preferably tetramethyl silicone oil. Of course, the heat conduction layer 5 is not limited to the preferred method of this embodiment. Other heat conduction forms that evenly arrange the heat conduction layer on the outer wall of the kettle are considered to fall into the protection scope of the present utility model. The heat conduction layer of this form can be heated evenly , to avoid local overheating.

In addition, in this embodiment, the heat conduction layer is used as the inner wall of one side of the gas combustion chamber, and the heat generated by gas combustion is directly conducted to the inside of the kettle body through the heat conduction layer, so the heat conduction efficiency is high; at the same time, the gas combustion chamber and the kettle body are an integrated structure, Space saving not only has high space utilization rate, but also can avoid the heat loss generated by the external heating device in the heat transmission link in the prior art, and save energy consumption.

Furthermore, the other side of the gas combustion chamber is an insulating layer, which prevents the loss of heat generated by gas combustion, ensures high utilization of heat, and reduces energy consumption. Preferably, the main component of the thermal insulation layer in this embodiment is aluminum silicate. Of course, this is not the only limitation on the thermal insulation layer. Any thermal insulation material that can play a role in thermal insulation, the arrangement form is substantially the same as that of this embodiment. , are all deemed to fall within the protection scope of the present utility model.

As the first implementation of this embodiment, the cone angle at the bottom of the kettle body 4 is 150°, the stirring paddle 13 adopts a turbine type stirring paddle, and the gap between the stirring paddle 13 and the inner wall of the kettle body 4 is 2mm, and the heat source of the reactor is composed of The gas generated by the carbonization of microalgae is provided by the combustion of the gas combustion chamber 6, and the reaction temperature in the kettle body 4 is controlled at 220°C. Filling, and the rest of the structure is the same as the embodiment shown in Figure 1.

As the second embodiment of this embodiment, the taper angle at the bottom of the kettle body 4 is 120°, the stirring paddle 13 adopts a frame-type stirring paddle, and the gap between the stirring paddle 13 and the inner wall of the kettle body 4 is 4mm, and the heat source of the reactor is composed of The gas generated by the carbonization of cow dung is provided by the combustion of the gas combustion chamber 6, and the reaction temperature in the kettle body 4 is controlled at 250°C. Filling, and the rest of the structure is the same as the embodiment shown in Figure 1.

It should be noted that the above two implementations are preferred implementations, both of which have the advantages of uniform heating, low energy consumption, and convenient addition and discharge of reactants and media. In a word, the above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall include Within the protection scope of the present utility model.

Claims (11)

1. a low energy consumption hydrothermal reaction kettle easy to operate, comprise kettle, it is characterized in that, also comprise the heat-conducting layer be set in turn in outside kettle, gas combustion chamber and heat-insulation layer, described heat-conducting layer is uniformly distributed in the outer wall of kettle, described gas combustion chamber is located between heat-conducting layer and heat-insulation layer, and described gas combustion chamber is provided with combustion air inlet, air intake, fire hole and gas discharging mouth.

2. according to hydrothermal reaction kettle according to claim 1, it is characterized in that, the conduction oil that described heat-conducting layer comprises airtight cavity and is injected in described cavity.

3. according to hydrothermal reaction kettle according to claim 2, it is characterized in that, described conduction oil is tetramethyl silicone oil.

4. according to the hydrothermal reaction kettle described in any one of claim 1-3, it is characterized in that, the top seal of described kettle, the bottom of described kettle is pyramidal structure, described kettle is provided with charging aperture, this charging aperture is provided with seal valve one, and the conical lower portion of described kettle is provided with discharging opening, and discharging opening is provided with seal valve two.

5. according to hydrothermal reaction kettle according to claim 4, it is characterized in that, also comprise agitating device, described agitating device comprise be located at kettle inside drive link, be located at the paddle on drive link and the drive unit for driving drive link to rotate, kettle outside is located at by described drive unit.

6. according to hydrothermal reaction kettle according to claim 5, it is characterized in that, described paddle adopts at least one in axial impellers, radial flow paddle or mixed flow paddle.

7. according to hydrothermal reaction kettle according to claim 5, it is characterized in that, the gap between described paddle and inner wall of kettle is less than 1cm.

8. according to hydrothermal reaction kettle according to claim 4, it is characterized in that, also comprise temperature measuring equipment, described temperature measuring equipment comprises the thermometer boss being located at kettle inside and the thermometer being positioned at thermometer boss.

9. according to hydrothermal reaction kettle according to claim 4, it is characterized in that, also comprising the Pressure gauge for detecting kettle internal pressure.

10. according to hydrothermal reaction kettle according to claim 4, it is characterized in that, the cone angle scope of described kettle conical lower portion is 30 ° ~ 160 °.

11., according to the hydrothermal reaction kettle described in any one of claim 5-9, is characterized in that, the cone angle scope of described kettle conical lower portion is 30 ° ~ 160 °.