A heat transfer oil pipeline exhaust system
By constructing a heat transfer oil pipeline exhaust system consisting of a vacuum buffer tank, a vacuum pump, and a condensation structure, the problems of difficult heat transfer oil transportation and poor heat tracing effect caused by residual gas in complex pipeline systems were solved, achieving rapid exhaust and efficient use.
Patent Information
- Application Number
- CN202521498480.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-17
AI Technical Summary
Existing heat transfer oil pipeline systems suffer from problems such as difficulty in transporting heat transfer oil and poor heat tracing effect due to residual gas in the complex pipeline system.
The heat transfer oil pipeline exhaust system, which consists of components such as a vacuum buffer tank, a vacuum pump, a gas-liquid separator, an exhaust gas buffer tank, and a condensation structure, extracts gas through a vacuum pump and condenses and filters it in the buffer tank, thereby achieving gas-liquid separation and impurity removal.
It effectively removes gas and liquid from the heat transfer oil pipeline, improving the transport efficiency and heat tracing effect of the heat transfer oil and ensuring the rapid use of the pipeline.
Smart Images
Figure CN224680569U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of exhaust technology for heat transfer oil pipelines, and particularly relates to an exhaust system for heat transfer oil pipelines. Background Technology
[0002] The production of polyester polyols requires high temperatures, and the commonly used heating medium is heat transfer oil. In the heat transfer oil system, during the initial start-up and after draining and refilling the oil after shutdown, the complex pipeline system often forms points that are difficult to vent, such as U-shaped bends. After the oil is filled, the presence of air in the pipeline makes it difficult to transport the heat transfer oil. The common technique is to add vent valves at the high horizontal position of the pipeline and at fixed intervals to use high temperature to expel moisture and gas. However, this method has the problem of residual gas causing poor heat transfer oil transportation and heat tracing effect. Utility Model Content
[0003] This invention overcomes the shortcomings of the prior art by providing a heat transfer oil pipeline exhaust system to solve the problems existing in the prior art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a heat transfer oil pipeline exhaust system, comprising...
[0005] A vacuum buffer tank is connected to a heat transfer oil pipeline to introduce the gas and liquid in the heat transfer oil pipeline into the vacuum buffer tank. The vacuum buffer tank is equipped with a liquid discharge pipe and a gas discharge pipe.
[0006] A vacuum pump is connected to the vacuum buffer tank via the gas discharge pipe, and a gas-liquid separator is provided at the rear end of the vacuum pump;
[0007] An exhaust gas buffer tank is provided, which is connected to the gas-liquid separator. One outlet of the exhaust gas buffer tank is connected to the liquid discharge pipe. An exhaust gas discharge pipe is provided on the exhaust gas buffer tank.
[0008] In a preferred embodiment of this invention, both the vacuum buffer tank and the exhaust gas buffer tank are provided with condensation structures to condense the gas inside the vacuum buffer tank and the exhaust gas buffer tank.
[0009] In a preferred embodiment of the present invention, the condensation structure includes a condensation inlet pipe and a condensation outlet pipe, wherein the condensation inlet pipe is connected to the condensation outlet pipe.
[0010] In a preferred embodiment of this utility model, one end of the vacuum pump is connected to a coolant inlet pipe, and one end of the gas-liquid separator is connected to a coolant outlet pipe.
[0011] In a preferred embodiment of the present invention, a pressure gauge is further included, which is connected to the vacuum pump.
[0012] In a preferred embodiment of this invention, both the vacuum buffer tank and the exhaust gas buffer tank are equipped with pipeline filters to filter impurities in the gas.
[0013] In a preferred embodiment of this invention, a baffle is provided inside the vacuum buffer tank to increase the gas travel.
[0014] This utility model solves the defects existing in the background technology, and has the following beneficial effects:
[0015] The exhaust system for heat transfer oil pipelines of this invention can alleviate the problem of poor heat transfer oil transportation and heat tracing effect caused by residual gas in complex pipeline systems. It effectively discharges the gas and liquid in the heat transfer oil pipelines, so as to facilitate the rapid use of the heat transfer oil pipelines and improve the exhaust effect of the heat transfer oil pipelines. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;
[0018] In the diagram: 100, heat transfer oil pipe; 10, vacuum buffer tank; 11, liquid discharge pipe; 12, gas discharge pipe; 20, vacuum pump; 21, gas-liquid separator; 30, tail gas buffer tank; 31, tail gas discharge pipe; 40, condenser structure; 41, condenser inlet pipe; 42, condenser outlet pipe; 50, coolant inlet pipe; 60, coolant outlet pipe; 70, pressure gauge; 80, baffle. Detailed Implementation
[0019] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.
[0020] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0021] This embodiment provides a heat transfer oil pipeline venting system, which can alleviate the problem of poor heat transfer oil transportation and heat tracing effect caused by residual gas in complex pipeline systems. It effectively discharges the gas and liquid in the heat transfer oil pipeline 100, so as to facilitate the rapid use of the heat transfer oil pipeline 100 and improve the venting effect of the heat transfer oil pipeline 100.
[0022] like Figure 1 As shown, the exhaust system of the heat transfer oil pipeline in this embodiment includes a vacuum buffer tank 10, a vacuum pump 20 and an exhaust gas buffer tank 30. The gas in the heat transfer oil pipeline 100 passes through the vacuum buffer tank 10, the vacuum pump 20 and the exhaust gas buffer tank 30 in sequence, effectively discharging the gas and liquid.
[0023] In this embodiment, the vacuum buffer tank 10 is connected to the heat transfer oil pipeline 100 to introduce the gas and liquid in the heat transfer oil pipeline 100 into the vacuum buffer tank 10. The vacuum buffer tank 10 is provided with a liquid discharge pipe 11 and a gas discharge pipe 12. The vacuum pump 20 is connected to the vacuum buffer tank 10 through the gas discharge pipe 12. A gas-liquid separator 21 is provided at the rear end of the vacuum pump 20. The tail gas buffer tank 30 is connected to the gas-liquid separator 21. One outlet of the tail gas buffer tank 30 is connected to the liquid discharge pipe 11. The tail gas buffer tank 30 is provided with a tail gas discharge pipe 31. When the vacuum pump 20 is working continuously, the gas and liquid in the heat transfer oil pipeline 100 enter the vacuum buffer tank 10. After being processed in the vacuum buffer tank 10, the liquid is discharged from the liquid discharge pipe 11, and the gas is introduced into the tail gas buffer tank 30 through the gas discharge pipe 12 and the vacuum pump 20. After being processed in the tail gas buffer tank 30, the gas is discharged from the tail gas discharge pipe 31.
[0024] Specifically, in this embodiment, both the vacuum buffer tank 10 and the exhaust gas buffer tank 30 are equipped with a condensing structure 40 to condense the gas inside the vacuum buffer tank 10 and the exhaust gas buffer tank 30. Both the vacuum buffer tank 10 and the exhaust gas buffer tank 30 are equipped with a pipeline filter to filter impurities in the gas. The vacuum buffer tank 10 is equipped with a baffle 80 to increase the gas travel. The condensing structure 40 can condense the gas to form a liquid, which can then be discharged through the liquid discharge pipe 11. Furthermore, the gas in the vacuum buffer tank 10 and the exhaust gas buffer tank 30 are both filtered by the pipeline filter. The baffle 80 in the vacuum buffer tank 10 and the exhaust gas buffer tank 30 increases the gas travel and improves the filtration effect.
[0025] In this embodiment, the condensation structure 40 includes a condensation inlet pipe 41 and a condensation outlet pipe 42. The condensation inlet pipe 41 and the condensation outlet pipe 42 are connected. The condensate passes through the condensation inlet pipe 41 and the condensation outlet pipe 42 in sequence, which can condense the gas in the vacuum buffer tank 10 and the tail gas buffer tank 30 to form a liquid.
[0026] Furthermore, in this embodiment, a gas-liquid separator 21 is provided at the rear end of the vacuum pump 20. One end of the vacuum pump 20 is connected to a coolant inlet pipe 50, and one end of the gas-liquid separator 21 is connected to a coolant outlet pipe 60. The gas-liquid separator 21 can quickly separate the gas and liquid, so that the liquid is quickly discharged from the liquid discharge pipe 11 and the gas enters the exhaust gas buffer tank 30 for processing. The presence of the coolant inlet pipe 50 and the coolant outlet pipe 60 allows the coolant to be introduced to cool the vacuum pump 20, thereby ensuring the continuous use of the vacuum pump 20.
[0027] In this embodiment, the heat transfer oil pipeline exhaust system also includes a pressure gauge 70, which is connected to the vacuum pump 20. In this embodiment, the pressure gauge 70 can adjust the frequency of the vacuum pump 20 so that the vacuum pump 20 can be used.
[0028] In practical use, the exhaust system for the heat transfer oil pipeline in this embodiment requires first closing the main inlet and outlet valves of the heat transfer oil pipeline 100 to ensure there are no leaks. Connect this system upstream of the outlet valve and start the vacuum pump 20 to extract the gas from the heat transfer oil pipeline 100. The pipeline filter in the vacuum buffer tank 10 can isolate large solid impurities such as iron filings from the extracted gas. The baffle 80 in the vacuum buffer tank 10 greatly increases the gas travel, causing liquid impurities and some gaseous impurities in the pipeline to condense inside the vacuum buffer tank 10, reducing the impact on the vacuum pump 20 and achieving the effect of purifying the heat transfer oil pipeline 100. During use, it is necessary to ensure that residual liquid in the vacuum buffer tank 10 and the pipeline filter are drained beforehand. The residue inside the device is removed by the pressure gauge 70 above the vacuum pump 20, which can adjust the frequency of the vacuum pump 20. The extracted gas is further purified by the gas-liquid separation process. The exhaust gas is discharged through the tail gas discharge pipe 31. The residual liquid in the gas-liquid separator 21 and the vacuum buffer tank 10 is discharged through the liquid discharge pipe 11. When the vacuum degree inside the heat transfer oil pipeline 100 reaches the required level (different vacuum degree requirements are determined according to the actual size of the heat transfer oil system), the return oil valve connecting this system to the heat transfer oil pipeline 100 is closed, and the heat transfer oil inlet is opened. The heat transfer oil is drawn in using the high vacuum formed inside the heat transfer oil pipeline 100. The heat transfer oil to be drawn in needs to be stored at a horizontal position higher than the heat transfer oil pipeline 100 by a certain height.
[0029] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.
[0030] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.
[0031] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.
[0032] In summary, the above detailed description is intended to be exemplary rather than limiting, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.
Claims
1. A heat transfer oil pipeline exhaust system, characterized in that, include A vacuum buffer tank (10) is connected to a heat transfer oil pipeline (100) to introduce the gas and liquid in the heat transfer oil pipeline (100) into the vacuum buffer tank (10). The vacuum buffer tank (10) is provided with a liquid discharge pipe (11) and a gas discharge pipe (12). A vacuum pump (20) is connected to the vacuum buffer tank (10) through the gas discharge pipe (12), and a gas-liquid separator (21) is provided at the rear end of the vacuum pump (20). The exhaust gas buffer tank (30) is connected to the gas-liquid separator (21). One outlet of the exhaust gas buffer tank (30) is connected to the liquid discharge pipe (11). The exhaust gas buffer tank (30) is provided with an exhaust gas discharge pipe (31).
2. The heat transfer oil pipeline exhaust system according to claim 1, characterized in that, Both the vacuum buffer tank (10) and the exhaust gas buffer tank (30) are equipped with condensation structures (40) to condense the gas inside the vacuum buffer tank (10) and the exhaust gas buffer tank (30).
3. The heat transfer oil pipeline exhaust system according to claim 2, characterized in that, The condensation structure (40) includes a condensation inlet pipe (41) and a condensation outlet pipe (42), wherein the condensation inlet pipe (41) and the condensation outlet pipe (42) are connected.
4. The heat transfer oil pipeline exhaust system according to claim 1, characterized in that, The vacuum pump (20) is connected to a coolant inlet pipe (50) at one end, and the gas-liquid separator (21) is connected to a coolant outlet pipe (60) at one end.
5. The heat transfer oil pipeline exhaust system according to claim 1, characterized in that, It also includes a pressure gauge (70) connected to the vacuum pump (20).
6. The heat transfer oil pipeline exhaust system according to claim 1, characterized in that, Both the vacuum buffer tank (10) and the exhaust gas buffer tank (30) are equipped with pipeline filters to filter impurities in the gas.
7. The heat transfer oil pipeline exhaust system according to claim 1, characterized in that, The vacuum buffer tank (10) is equipped with a baffle (80) to increase the gas travel.