Reaction kettle heating medium testing system
By using mold temperature controllers and heat exchangers alternately, combined with the design of high-level tanks and nitrogen-sealed pipelines, the problem of existing equipment being unable to simulate high and low temperature alternating stress is solved, achieving efficient detection of welding quality of reactors and heat medium pipelines and environmental protection.
Patent Information
- Application Number
- CN202422955938.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing testing equipment cannot simulate alternating high and low temperature stress, making it impossible to test the welding quality of reactors and heat medium pipelines under harsh working conditions.
The system employs alternating use of a mold temperature controller and a heat exchanger to heat and cool the heat medium. Combined with a high-level tank and a closed nitrogen pipeline design, it simulates the alternating temperature stress of the heat medium under harsh working conditions. The system also protects the equipment through filters and exhaust devices.
It enables efficient welding strength testing of reactors and heat medium pipelines, protecting equipment from high-temperature flue gas pollution and improving the reliability and environmental safety of testing.
Smart Images
Figure CN223581665U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of reaction kettle test frock, concretely relates to a reaction kettle heat medium test system. BACKGROUND
[0002] Reaction kettle is the production equipment commonly used in chemical industry, medicine and other fields, and has wide application range. One of the characteristics of the production equipment is integration of various equipment and fixation. Reaction kettle is one part of the production equipment. Therefore, the quality requirement of reaction kettle is high, and the reaction kettle should not be deformed and leak at normal working temperature.
[0003] In order to ensure the welding quality of the reaction kettle and the heat medium pipeline of the reaction kettle, quality detection is needed before leaving the factory. In addition to the conventional quality detection, simulation detection of working conditions is also needed to ensure the welding quality.
[0004] However, the existing test equipment can only heat the heat medium, and cannot cool the heat medium. Therefore, the reaction kettle can only be simulated under general working conditions by the heat medium, and the welding position of the reaction kettle cannot be tested under high and low temperature alternating stress. The welding quality of the reaction kettle under severe working conditions cannot be detected. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problem that the existing test equipment cannot simulate high and low temperature alternation, and the welding position of the reaction kettle and the heat medium pipeline cannot be detected under severe working conditions.
[0006] The technical scheme for solving the above technical problem is as follows: a reaction kettle heat medium test system comprises:
[0007] A low-position tank is arranged on the ground, and the low-position tank is used for containing heat medium.
[0008] A high-position tank is arranged above the low-position tank, the high-position tank and the low-position tank are connected through a first conveying pipeline, and an oil pump is arranged in the first conveying pipeline.
[0009] A mold temperature controller is arranged on the ground, and a second conveying pipeline is arranged between the mold temperature controller and the high-position tank.
[0010] The mold temperature controller is also provided with a third conveying pipeline for connecting the inlet of the reaction kettle, and the outlet of the reaction kettle is also provided with a fourth conveying pipeline.
[0011] Heat exchangers are arranged on the third conveying pipeline and the fourth conveying pipeline.
[0012] The utility model discloses a mould temperature machine and heat exchanger alternate use, make heat medium repeatedly heat and cool, make the reaction kettle and heat medium pipeline receive the alternating stress of different temperature in short time, can simulate the severe working condition, the welding strength of heat medium pipeline is detected to the maximum extent, in addition, a large amount of heat medium is stored through the low -lying tank, and in actual heat medium test process, heat medium is sent into the high -level tank, and the high -level tank participates in heat medium circulation, and the high -level tank plays the buffering effect, can adapt to the heat medium pipeline of different volume of the reaction kettle.
[0013] Further: the fourth delivery pipeline still is equipped with two parallel branch pipes, is equipped with filter and pressure gauge on the branch pipe;
[0014] The fourth delivery pipeline is also provided with a temporary emptying pipe to the high-level tank.
[0015] The beneficial effects of the present step are: because of the welding slag and other impurities that may exist in the heat medium pipeline, the heat medium needs to be filtered through the filter to prevent damage to the mold temperature machine;As for the two branch pipes, they are used alternately, when the filter of one of the branch pipes needs to be cleaned, the other branch pipe circulates the heat medium.
[0016] Further: the mold temperature machine and the fourth delivery pipeline are both provided with a first return pipe to the low-level tank, and the reaction kettle is also provided with a second return pipe, which is connected to the first return pipe;
[0017] The high-level tank is also provided with an overflow pipe to the low-level tank, and the high-level tank is also provided with an emergency discharge port, which is connected to the overflow pipe.
[0018] The beneficial effects of the present step are: the first return pipe and the second return pipe are used to expand the volume of the heat medium after heating, and too much heat medium will cause excessive pressure in the mold temperature machine and the reaction kettle, so the heat medium is discharged back to the low-level tank for pressure relief;Similarly, the overflow pipe also has the same effect, which protects the pipeline and the high-level tank.
[0019] Further: the first delivery pipeline is provided with an inlet at the front end of the oil pump and an outlet at the rear end of the oil pump;
[0020] The inlet and the outlet are both provided with a valve body.
[0021] The beneficial effects of the present step are: the inlet is used to extract heat medium from an external heat medium storage container using the oil pump when the system is initially used;Conversely, when the system needs to be cleaned or repaired, the heat medium in the system is discharged to the external heat medium storage container through the outlet.
[0022] Further: the low-level tank is provided with a first exhaust pipe;
[0023] The high tank is provided with a second exhaust pipe, and the second exhaust pipe is further provided with a tail gas treatment device.
[0024] The tail gas treatment device comprises a water cooling tank, an adsorption tank and a fire arrestor connected in sequence.
[0025] The beneficial effects of the present step are as follows: after the low tank is filled with the heat medium, the internal air needs to be discharged through the first exhaust pipe, and the heat medium fume generated after the heat medium in the high tank is heated needs to be discharged due to excessive internal pressure, but the heat medium fume will pollute the environment, so the heat medium fume needs to be cooled and liquefied through the water cooling tank, and the fume that cannot be completely liquefied will enter the adsorption tank and be adsorbed by the graphite in the adsorption tank; the fire arrestor plays a protective effect and prevents fire in the pipeline.
[0026] Further, the utility model further comprises:
[0027] A nitrogen sealing pipe is divided into a first nitrogen sealing pipe and a second nitrogen sealing pipe, the first nitrogen sealing pipe is communicated with the low tank, and the second nitrogen sealing pipe is communicated with the high tank.
[0028] A reaction kettle gas return pipe is communicated with the high tank.
[0029] A nitrogen purging pipe is communicated with the reaction kettle gas return pipe, and the nitrogen purging pipe is further provided with a sampling branch pipe.
[0030] The high tank and the mold temperature controller are further provided with a fume backflow pipe.
[0031] The beneficial effects of the present step are as follows: in order to facilitate the flow of the heat medium in the low tank and the high tank and maintain the internal pressure, a certain pressure of nitrogen needs to be introduced into the interior through the nitrogen sealing pipe; and the nitrogen purging pipe can use nitrogen to bring the residual heat medium fume, heat medium liquid and the like in the pipeline into the high tank.
[0032] The beneficial effects of the present utility model are as follows:
[0033] 1. The present application combines the mold temperature controller and the heat exchanger, and the two are alternately used to alternately heat and cool the heat medium, repeatedly increase / decrease the temperature of the heat medium, make the reaction kettle and the heat medium pipeline bear the alternating stress caused by the heat medium with frequently changed temperature, and improve the test strength.
[0034] 2. The present application is further provided with the nitrogen sealing pipe and the nitrogen purging pipe, can effectively prevent the fume generated after the heat medium is heated from escaping to the environment, cooperates with the tail gas treatment device of the high tank to effectively control the heat medium fume, and plays a role in protecting the environment. BRIEF DESCRIPTION OF DRAWINGS
[0035] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described in the following are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0036] Fig. 1 A flow chart of a reaction kettle heat medium test system provided by the present application is shown in the figure.
[0037] Fig. 2 A flow chart of a heat medium pipeline in a reaction kettle heat medium test system provided by the present application is shown in the figure.
[0038] Fig. 3 A flow chart of a gas pipeline in a reaction kettle heat medium test system provided by the present application is shown in the figure.
[0039] Figs. 1-3 In the figure, the arrow indicates the flow direction of the gas or liquid in the pipeline, the solid line indicates the heat medium pipeline, and the dashed line indicates the gas pipeline.
[0040] Reference signs:
[0041] 1 - low tank; 2 - high tank; 3 - mold temperature controller; 4 - first conveying pipeline; 5 - second conveying pipeline; 6 - third conveying pipeline; 7 - fourth conveying pipeline; 8 - reaction kettle inlet; 9 - reaction kettle outlet; 10 - temporary emptying pipeline; 11 - first reflux pipeline; 12 - second reflux pipeline; 13 - overflow pipeline; 14 - first exhaust pipeline; 15 - second exhaust pipeline; 16 - water cooling tank; 17 - adsorption tank; 18 - flame arrestor; 19 - pressure gauge; 20 - filter; 21 - first nitrogen sealing pipeline; 22 - second nitrogen sealing pipeline; 23 - reaction kettle gas return pipeline; 24 - nitrogen purging pipeline; 25 - flue gas return pipeline; 26 - liquid level gauge; 27 - heat exchanger; 41 - oil pump; 42 - inlet; 43 - outlet; 71 - branch pipeline;
[0042] 241 - sampling branch pipeline. DETAILED DESCRIPTION
[0043] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.
[0044] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meanings understood by the skilled in the art to which the present application belongs.
[0045] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0046] In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.
[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.
[0048] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0049] Embodiment
[0050] As shown in Fig. 1 , Fig. 2 and Fig. 3 , the reaction kettle heat medium test system provided by the present application comprises:
[0051] Low tank 1, the low tank 1 is arranged on the ground, and the low tank 1 is used for containing heat medium;
[0052] The high-level tank 2 is located above the low-level tank 1 and is generally fixed in mid-air by a fixed bracket, so that the heat medium can flow down automatically by gravity. The high-level tank 2 and the low-level tank 1 are connected by a first conveying pipe 4, and an oil pump 41 is installed in the first conveying pipe 4, which serves as the power source for the circulation of the heat medium. The low-level tank 1 and the high-level tank 2 are also equipped with level gauges 26 to observe the amount of heat medium stored inside.
[0053] Mold temperature controller 3, the mold temperature controller 3 is installed on the ground, and a second conveying pipe 5 is provided between the mold temperature controller 3 and the high-level tank 2;
[0054] The mold temperature controller 3 is also provided with a third conveying pipe 6 for connecting to the reactor inlet 8, and the reactor outlet 9 is also provided with a fourth conveying pipe 7;
[0055] Both the third conveying pipeline 6 and the fourth conveying pipeline 7 are equipped with heat exchangers 27. The heat exchangers 27 can be finned tubes, plate heat exchangers, or shell-and-tube heat exchangers, etc., and the heat medium is cooled down by air cooling or water cooling.
[0056] This invention utilizes a mold temperature controller 3 to circulate and heat the heat medium, and a heat exchanger 27 to circulate and cool the heat medium. The mold temperature controller 3 and the heat exchanger 27 are used alternately, allowing the heat medium to be repeatedly heated and cooled. This subjects the reactor and heat medium pipelines to alternating stresses at different temperatures in a short period of time, simulating harsh working conditions and maximizing the testing of the welding strength of the reactor and heat medium pipelines. In addition, a large amount of heat medium is stored in the low-level tank, while in the actual heat medium testing process, the heat medium is sent to the high-level tank, which participates in the heat medium circulation. The high-level tank acts as a buffer, accommodating heat medium pipelines of reactors with different volumes, and allowing the inlet of the mold temperature controller 3 to draw sufficient heat medium (without the high-level tank 2, the long pipeline would affect the heat medium drawn from the inlet of the mold temperature controller 3, and the drawn heat medium might contain air, affecting the service life of the oil pump inside the mold temperature controller 3).
[0057] Based on the above technical solution, the fourth conveying pipeline 7 is also provided with two parallel branch pipes 71, and the branch pipes 71 are provided with a filter 20 and a pressure gauge 19. The pressure gauge 19 is a commonly used pressure testing instrument.
[0058] The fourth conveying pipeline 7 is also provided with a temporary vent pipe 10 to the high-level tank 2. The temporary vent pipe 10 is mainly used to replace the reactor under test and send the heat medium flowing through the reactor into the high-level tank 2.
[0059] Due to the welding slag and other impurities possibly existing in the heat medium pipeline, the heat medium needs to be filtered by the filter 20 to avoid damaging the mold temperature machine 3. As for the two branch pipes 71, they are used alternately, when the filter 20 of one of the branch pipes 71 needs to be cleaned, the other branch pipe 71 is used for the circulation of the heat medium.
[0060] On the basis of the above technical scheme, the mold temperature machine 3 and the fourth conveying pipeline 7 are both provided with a first return pipeline 11 to the low-position tank 1, and the reaction kettle is also provided with a second return pipeline 12 connected to the first return pipeline 11;
[0061] The high-position tank 2 is also provided with an overflow pipeline 13 to the low-position tank 1, and the high-position tank 2 is further provided with an emergency discharge port connected to the overflow pipeline 13.
[0062] The first return pipeline 11 and the second return pipeline 12 are both used to return the heat medium to the low-position tank 1 for pressure relief because the volume of the heat medium expands after being heated (the heat medium is gradually heated), and too much heat medium will cause excessive pressure in the mold temperature machine 3 and the reaction kettle. Similarly, the overflow pipeline 13 also has the same effect, which protects the pipeline and the high-position tank 2.
[0063] On the basis of the above technical scheme, the first conveying pipeline 4 is provided with an inlet 42 at the front end of the oil pump 41 and an outlet 43 at the rear end of the oil pump 41.
[0064] The inlet 42 and the outlet 43 are both provided with valve bodies. The valve bodies are arranged on the pipeline for the purpose of cutoff and the like, which is a conventional technology and will not be described in detail.
[0065] The inlet 42 is used to draw the heat medium from an external heat medium storage container by the oil pump 41 when the system is initially used. Conversely, when the system needs to be cleaned or repaired, the heat medium in the system is discharged to the external heat medium storage container through the outlet 43. The oil pump 41 is used to complete the filling and discharge of the heat medium, which speeds up the efficiency and does not require manual operation or additional power source.
[0066] On the basis of the above technical scheme, the low-position tank 1 is provided with a first exhaust pipeline 14.
[0067] The high-position tank 2 is provided with a second exhaust pipeline 15, and the second exhaust pipeline 15 is further provided with a tail gas treatment device.
[0068] The tail gas treatment device comprises a water cooling tank 16, an adsorption tank 17 and a flame arrester 18 connected in sequence.
[0069] After the low tank 1 is filled with the heat medium, the internal air needs to be discharged through the first exhaust pipe 14, and the heat medium fume generated after the heat medium in the high tank 2 is heated needs to be discharged through the second exhaust pipe 15, but the heat medium fume will pollute the environment, so the water cooling tank 16 is needed to cool and liquefy the heat medium fume, and the fume that cannot be completely liquefied will enter the adsorption tank 17 and be adsorbed by the graphite in the adsorption tank 17; the flame arrester 18 plays a protective effect to prevent the pipeline from catching fire.
[0070] On the basis of the above technical scheme, further comprising:
[0071] The nitrogen sealing pipe is divided into a first nitrogen sealing pipe 21 and a second nitrogen sealing pipe 22, the first nitrogen sealing pipe 21 is communicated with the low tank 1, and the second nitrogen sealing pipe 22 is communicated with the high tank 2;
[0072] The reaction kettle gas return pipe 23 is communicated with the high tank 2, and the heat medium fume generated after the heat medium in the heat medium pipeline of the reaction kettle is heated needs to be discharged into the high tank 2;
[0073] The nitrogen purging pipe 24 is communicated with the reaction kettle gas return pipe 23, and the nitrogen purging pipe 24 is further provided with a sampling branch pipe 241, from which a gas sample can be taken out and used for analyzing the internal gas components;
[0074] The nitrogen flow rate in the nitrogen purging pipe 24 is faster than the heat medium fume flow rate in the reaction kettle gas return pipe 23, so that the heat medium fume can be driven to flow to the high tank 2;
[0075] The high tank 2 and the mold temperature controller 3 are further provided with a fume backflow pipe 25, which is also used for inputting the heat medium fume generated after the heat medium is heated into the high tank 2.
[0076] In order to facilitate the flow of the heat medium in the low tank 1 and the high tank 2 and maintain the internal pressure, nitrogen with a certain pressure needs to be introduced into the interior through the nitrogen sealing pipe; and the nitrogen purging pipe 24 can use nitrogen to bring the residual heat medium fume, heat medium liquid and the like in the pipeline into the high tank 2.
[0077] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A reaction vessel heat transfer medium testing system, characterized in that, include: A low-level tank, located on the ground, is used to contain heat medium; A high-level tank is located above the low-level tank, and the high-level tank and the low-level tank are connected by a first conveying pipe, which is equipped with an oil pump. A mold temperature controller is installed on the ground, and a second conveying pipe is provided between the mold temperature controller and the elevated tank; The mold temperature controller is also provided with a third conveying pipe for connecting to the inlet of the reactor, and the outlet of the reactor is also provided with a fourth conveying pipe to the mold temperature controller; Both the third and fourth conveying pipelines are equipped with heat exchangers.
2. The reactor heat transfer medium testing system according to claim 1, characterized in that, The fourth conveying pipeline is also equipped with two parallel branch pipes, and the branch pipes are equipped with filters and pressure gauges; The fourth conveying pipeline is also equipped with a temporary vent pipe leading to the high-level tank.
3. The reactor heat transfer medium testing system according to claim 2, characterized in that, Both the mold temperature controller and the fourth conveying pipe are provided with a first reflux pipe leading to the low-level tank, and the reactor is also provided with a second reflux pipe, which is connected to the first reflux pipe. The high-level tank is also provided with an overflow pipe to the low-level tank, and the high-level tank is also provided with an emergency discharge port, which is connected to the overflow pipe.
4. The reactor heat transfer medium testing system according to claim 3, characterized in that, The first delivery pipeline has an inlet at the front end of the oil pump and an outlet at the rear end of the oil pump; Both the inlet and the outlet are equipped with valve bodies.
5. The reactor heat transfer medium testing system according to claim 4, characterized in that, The low-position slot is equipped with a first exhaust pipe; The high-level tank is equipped with a second exhaust pipe, and the second exhaust pipe is also equipped with an exhaust gas treatment device. The exhaust gas treatment device includes a water-cooled tank, an adsorption tank, and a flame arrester connected in sequence.
6. The reactor heat transfer medium testing system according to claim 5, characterized in that, Also includes: A nitrogen sealing tube, which is divided into a first nitrogen sealing tube and a second nitrogen sealing tube, wherein the first nitrogen sealing tube is connected to the low-level tank and the second nitrogen sealing tube is connected to the high-level tank; A gas return pipe for the reactor is connected to the high-level tank. A nitrogen purging pipe is connected to the return gas pipe of the reactor, and the nitrogen purging pipe is also provided with a sampling branch pipe; A flue gas return pipe is also provided between the high-level tank and the mold temperature controller.