Odorless evacuation equipment of ammonia refrigeration system
By designing an ammonia cooling system that includes a guide plate, an inverted tube, a connecting tube, and a filter plate, it solves the problem of low separation efficiency of refrigerant and lubricating oil in the ammonia cooker. Efficient separation and recycling reduces the load of dehomators and improves the refrigeration effect.
Patent Information
- Application Number
- CN202421007119.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In ammonia refrigeration system, the separation efficiency of the refrigerant ammonia liquid and lubricating oil is low, and the return oil pipe is prone to blockage without protection.
A tasteless air -free device with a cooling system is designed, including cylindrical, upper end cover, lower end cover, import pipe, trachea, conductivity, fog dexter, oil return pipe and filter board. The guide plate is a spiral structure, which is introduced outside the pipe. The guide board is hovering outside the pipe and extended to the lower end cover. The guide board is convenient for liquid diversion, so that lubricating oil and refrigerant can be slowly imported into the bottom of the sealing cavity. There are several connecting pipes at the connection between the inverted cone and the round platform. The small drops in the refrigerant are blocked to avoid importing the mioma directly through the connecting pipe to reduce the working load of the mioma. The filter plate is a hemispherical shell structure. It connects the inner wall of the pipe and the lower end cover. There are several filter holes in the filter plate to prevent the oil return pipe from entering the end.
Through the design of the device, the separation efficiency of lubricating oil and refrigerant is significantly improved. The protection of the oil -return pipes effectively avoids blocking, reducing the working load of the dehumidar, and improving the refrigeration system of the refrigeration system.
Smart Images
Figure CN222418065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of evacuation of an ammonia refrigeration system, in particular to an odorless evacuation device for an ammonia refrigeration system. Background Art
[0002] The ammonia refrigeration system achieves the purpose of refrigeration by evaporating ammonia and absorbing heat from the air. The refrigerant ammonia circulates continuously in the system, causing changes in state and exchanging heat with the outside world. The working process is as follows: after the liquid ammonia absorbs the heat of the cooled object in the evaporator, it vaporizes into low-pressure and low-temperature ammonia gas, is sucked into the compressor, compressed into high-pressure and high-temperature ammonia gas, and then discharged into the condenser. In the condenser, it is cooled by cooling water to release heat and condense into high-pressure ammonia liquid, which is throttled by the throttle valve to low-temperature and low-pressure ammonia liquid, and then enters the evaporator again to absorb heat and vaporize, achieving the purpose of circulating refrigeration.
[0003] In order to prevent liquid refrigerant from directly entering the compressor, the refrigerant needs to be vaporized and deliquored before it can be introduced into the compressor. The existing odorless vacuum equipment of the ammonia refrigeration system has low separation efficiency because lubricating oil is mixed in the ammonia liquid refrigerant and is directly introduced into the device from the inlet pipe. The refrigerant ammonia liquid and ammonia gas are all separated by the demister, which increases the workload of the demister. In addition, since the return oil pipe is not protected, it is prone to blockage. Utility Model Content
[0004] 1. Technical Problems Solved
[0005] The technical problem to be solved by the utility model is that the separation efficiency of ammonia liquid refrigerant and lubricating oil is low, and the oil return pipe lacks protection and is prone to blockage.
[0006] 2. Technical Solution
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: an odorless vacuuming device for an ammonia refrigeration system, comprising a cylinder, a lower end cover and an upper end cover, the upper end cover, the cylinder and the lower end cover are sealed and connected and provided with a sealed cavity, the sealed cavity is connected with an inlet pipe and an outlet pipe, the inlet pipe seals and passes through the lower end cover and extends to the top of the cylinder, the upper end cover is externally connected with a liquid guide plate, the top of the cylinder is connected with a demister above the inlet pipe, the outlet pipe seals and passes through the upper end cover and is arranged upward, the bottom of the lower end cover is sealed and connected with an oil return pipe, and the lower end cover is connected with a filter plate above the oil return pipe.
[0008] Furthermore, the liquid guide plate is a spiral structure, which is spirally arranged outside the inlet pipe and extends into the lower end cover, so as to facilitate the diversion of the liquid, so that the lubricating oil and the refrigerant can be smoothly introduced into the bottom of the sealed cavity.
[0009] Furthermore, a hollow cone is connected to the cylinder between the inlet pipe and the demister, an inverted cone is connected to the middle of the cone, the bottom end of the inverted cone is arranged relative to the inlet pipe, and a plurality of connecting pipes are evenly connected to the connection between the inverted cone and the cone. Lubricating oil and refrigerant are introduced through the inlet pipe. The inverted cone is convenient for blocking small droplets in the refrigerant, preventing ammonia liquid refrigerant from being directly introduced into the demister through the connecting pipe, thereby reducing the workload of the demister.
[0010] Furthermore, there are no less than two connecting pipes, and the connecting pipes are symmetrically arranged with the inlet pipe as the center. The non-condensable gas contained in the refrigerant is confined to the top of the connection between the inverted cone and the truncated cone. The setting of the connecting pipe facilitates the conduction of ammonia in this part of the refrigerant to the demister for further defoggering.
[0011] Furthermore, the filter plate is a hemispherical shell structure, one end of the filter plate is connected to the inlet pipe, and the other end is connected to the inner wall of the lower end cover. The filter plate is connected with a plurality of filter holes. The setting of the hemispherical filter plate facilitates the protection of the inlet end of the return oil pipe to avoid blockage. At the same time, due to the hemispherical structure of the filter plate, impurities will not accumulate on the top of the filter plate.
[0012] 3. Beneficial Effects
[0013] The advantages of the utility model compared with the prior art are:
[0014] The arrangement of the cylinder, the upper end cover, the lower end cover, the inlet pipe, the air outlet pipe, the liquid guide plate, the demister, the oil return pipe and the filter plate facilitates the introduction of the refrigerant mixed with the lubricating oil into the sealed cavity through the inlet pipe. The arrangement of the liquid guide plate facilitates the smooth introduction of the refrigerant into the bottom of the cylinder, and facilitates the separation of the lubricating oil and the refrigerant. After the refrigerant and the lubricating oil are separated, the lubricating oil is introduced into the bottom of the lower end cover and recovered through the oil return pipe. After the ammonia liquid in the refrigerant passes through the demister to remove droplets, the remaining ammonia gas is introduced into the compressor through the air outlet pipe for compression, which facilitates improving the refrigeration effect of the refrigeration system. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a structural schematic diagram of an odorless vacuuming device for an ammonia refrigeration system.
[0016] Figure 2 The utility model is a schematic diagram of the main cross-sectional structure of an odorless vacuum pumping device for an ammonia refrigeration system.
[0017] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of A.
[0018] Figure 4 The utility model is a schematic diagram of the structure of an odorless vacuum pumping device of an ammonia refrigeration system viewed from above.
[0019] As shown in the figure: 1. Cylinder body, 2. Lower end cover, 3. Upper end cover, 4. Inlet pipe, 5. Air outlet pipe, 6. Liquid guide plate, 7. Demister, 8. Oil return pipe, 9. Filter plate, 10. Cone, 11. Inverted cone, 12. Connecting pipe. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] Embodiment 1
[0022] Combined with Figure 1 , Figure 2 , Figure 3 and Figure 4 , an odorless vacuuming device for an ammonia refrigeration system, comprising a cylinder 1, a lower end cover 2 and an upper end cover 3, wherein the upper end cover 3, the cylinder 1 and the lower end cover 2 are sealed and provided with a sealed cavity, wherein an inlet pipe 4 and an outlet pipe 5 are connected to the sealed cavity, wherein the inlet pipe 4 seals through the lower end cover 2 and extends to the top of the cylinder 1, wherein a liquid guide plate 6 is connected to the outside of the upper end cover 3, wherein the liquid guide plate 6 is a spiral structure, wherein the liquid guide plate 6 is spirally arranged outside the inlet pipe 4 and extends to the inside of the lower end cover 2, wherein the top of the cylinder 1 is connected to the inlet pipe 4 above the inlet pipe 4 A demister 7 is connected, and a hollow truncated cone 10 is connected between the cylinder 1 and the demister 7. An inverted cone 11 is connected to the middle of the truncated cone 10. The bottom end of the inverted cone 11 is arranged relative to the inlet pipe 4. A plurality of connecting pipes 12 are evenly connected at the connection between the inverted cone 11 and the truncated cone 10. There are no less than two connecting pipes 12, and the connecting pipes 12 are symmetrically arranged with the inlet pipe 4 as the center. The air outlet pipe 5 is sealed and penetrates the upper end cover 3 and is arranged upward. The bottom of the lower end cover 2 is sealed and connected with an oil return pipe 8.
[0023] Through the arrangement of the cylinder 1, the upper end cover 3, the lower end cover 2, the inlet pipe 4, the air outlet pipe 5, the liquid guide plate 6, the demister 7 and the oil return pipe 8 in the above structure, it is convenient to introduce the refrigerant mixed with the lubricating oil into the sealed cavity through the inlet pipe 4, and then smoothly introduce it into the bottom of the sealed cavity through the liquid guide plate 6, so as to facilitate the separation of the lubricating oil and the refrigerant, and the ammonia is separated by the demister 7 and then introduced into the compressor for compression, so as to improve the refrigeration effect.
[0024] Embodiment 2
[0025] Based on the first embodiment, combined with the attached Figure 2The lower end cover 2 is connected with a filter plate 9 above the oil return pipe 8. The filter plate 9 is a hemispherical shell structure. One end of the filter plate 9 is connected to the inlet pipe 4, and the other end is connected to the inner wall of the lower end cover 2. The filter plate 9 is connected with a plurality of filter holes.
[0026] The filter plate 9 is provided to protect the oil return pipe 8 and avoid clogging by solid impurities.
[0027] The specific usage is as follows:
[0028] The refrigerant mixed with lubricating oil is introduced into the sealed cavity through the introduction pipe 4, and the inverted cone 11 is convenient for blocking small droplets in the refrigerant, so as to prevent the refrigerant from being directly introduced into the lower part of the demister 7 through the connecting pipe 12, so as to reduce the workload of the demister 7. The connecting pipe 12 is symmetrically arranged with the introduction pipe 4 as the center, and the ammonia in the refrigerant is restricted to the top of the connection between the inverted cone 11 and the truncated cone 10. The arrangement of the connecting pipe 12 facilitates this part of the ammonia to be conducted to the demister 7 for further removal of droplets, and then introduced into the compressor through the outlet pipe 5 for compression, so as to improve the refrigeration effect of the refrigeration system;
[0029] The liquid guide plate 6 is a spiral structure and is arranged outside the inlet pipe 4 and extends into the lower end cover 2, which is convenient for guiding the liquid, so that the lubricating oil and the refrigerant can be smoothly introduced into the bottom of the sealed cavity, which is convenient for separating the lubricating oil and the refrigerant;
[0030] After the refrigerant and the lubricating oil are separated, the lubricating oil is introduced into the bottom of the lower end cover 2 and recovered through the return oil pipe 8. The setting of the hemispherical filter plate 9 facilitates the protection of the entrance end of the return oil pipe 8 to avoid blockage. At the same time, due to the hemispherical structure of the filter plate 9, impurities will not accumulate on the top of the filter plate 9.
[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. An odorless evacuation device for an ammonia refrigeration system, comprising a cylinder (1), a lower end cover (2) and an upper end cover (3), wherein the upper end cover (3), the cylinder (1) and the lower end cover (2) are sealed and provided with a sealed cavity, wherein an inlet pipe (4) and an outlet pipe (5) are connected to the sealed cavity, and characterized in that: The inlet pipe (4) is sealed through the lower end cover (2) and extends to the top of the cylinder (1); the upper end cover (3) is externally connected to a liquid guide plate (6); the top of the cylinder (1) is connected to a demister (7) above the inlet pipe (4); the outlet pipe (5) is sealed through the upper end cover (3) and is arranged upward; the bottom of the lower end cover (2) is sealed through an oil return pipe (8); and the lower end cover (2) is connected to a filter plate (9) above the oil return pipe (8).
2. The odorless evacuation device for an ammonia refrigeration system according to claim 1, characterized in that: The liquid guide plate (6) is a spiral structure, and the liquid guide plate (6) is spirally arranged outside the introduction tube (4) and extends into the lower end cover (2).
3. The odorless evacuation device for an ammonia refrigeration system according to claim 1, characterized in that: The cylinder (1) is provided with a hollow truncated cone (10) connected between the inlet pipe (4) and the demister (7); an inverted cone (11) is connected to the middle of the truncated cone (10); the bottom end of the inverted cone (11) is arranged relative to the inlet pipe (4); and a plurality of connecting pipes (12) are evenly distributed and connected at the connection between the inverted cone (11) and the truncated cone (10).
4. The odorless evacuation device for an ammonia refrigeration system according to claim 3, characterized in that: There are no less than two connecting pipes (12), and the connecting pipes (12) are symmetrically arranged with the introduction pipe (4) as the center.
5. The odorless evacuation device for an ammonia refrigeration system according to claim 1, characterized in that: The filter plate (9) is a hemispherical shell structure. One end of the filter plate (9) is connected to the inlet pipe (4), and the other end is connected to the inner wall of the lower end cover (2). The filter plate (9) is connected to a plurality of filter holes.