Pipeline type gas-liquid separation device

Abstract

The utility model provides a pipeline type gas-liquid separation device, including return gas main pipe, collector pipe, exit pipe and bypass pipe, return gas main pipe is horizontal, collector pipe is communicated with return gas main pipe, exit pipe is communicated with return gas main pipe, collector pipe's liquid outlet is downward, exit pipe extends upward from return gas main pipe, and bypass pipe's bypass pipe is equipped with return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe's return gas main pipe. The bypass pipe is communicated with the liquid collecting pipe and the gas outlet pipe, the bypass pipe is used for balancing the pressure between the liquid collecting pipe and the gas outlet pipe, and gas in the liquid collecting pipe enters the gas outlet pipe through the bypass pipe; a traditional container type gas-liquid separator is replaced by the pipeline type gas-liquid separation device, liquid carried by gas in the gas return main pipe is separated, it is ensured that the content of the liquid at the suction end of the compressor is qualified, the structural design is simple and compact, the application range is wide, the manufacturing cost is low, and extra power is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas -liquid separation device technical field, specifically related to a pipeline formula gas -liquid separation device. BACKGROUND

[0002] In the design and operation process of refrigeration equipment, the refrigerant liquid content sucked by the suction end of the compressor needs to be maintained at a lower level as far as possible, because once the refrigerant liquid excessively enters the compressor, the liquid hammer phenomenon can be caused, which can cause serious mechanical damage to the compressor, and even lead to its complete damage. In order to avoid this potential risk, a container type gas-liquid separator is usually added at the return gas pipeline of the refrigeration system. The gas-liquid separator itself is usually a pressure vessel. The pressure vessel is classified as special equipment due to its special structure and purpose. Its design, manufacture, inspection and use need to strictly follow higher technical standards. From the selection of materials, the optimization of structure, to the quality control in the manufacturing process, to the periodic inspection and maintenance in the later period, each step is crucial and complex. The manufacturing inspection steps are complex, and the equipment manufacturing cost is usually high. SUMMARY

[0003] The utility model aims at providing a pipeline formula gas -liquid separation device to solve the above -mentioned problems.

[0004] The technical scheme adopted by the utility model is:

[0005] A pipeline formula gas-liquid separation device, comprising a return gas main pipe, a liquid collecting pipe, an air outlet pipe and a bypass pipe, the return gas main pipe is horizontally arranged, the liquid collecting pipe is communicated with the return gas main pipe, the air outlet pipe is communicated with the return gas main pipe, the liquid outlet of the liquid collecting pipe faces downward, the air outlet pipe extends upward from the return gas main pipe, the bypass pipe is communicated with the liquid collecting pipe and the air outlet pipe, the bypass pipe is used for balancing the pressure between the liquid collecting pipe and the air outlet pipe, and the gas in the liquid collecting pipe enters the air outlet pipe through the bypass pipe.

[0006] As a further improved technical scheme of the utility model, the return gas main pipe comprises an inlet and a gas-liquid separation section, and the inlet, the gas-liquid separation section, the air outlet pipe and the liquid collecting pipe are sequentially arranged in the flow direction of the gas-liquid mixture.

[0007] As a further improved technical scheme of the utility model, the air outlet pipe comprises an air outlet main pipe and a first T-shaped three-way joint, and the first T-shaped three-way joint is communicated with the return gas main pipe and the air outlet main pipe.

[0008] As a further improved technical scheme of the utility model, the liquid collecting pipe comprises a liquid collecting main pipe and a second T-shaped three-way joint, the second T-shaped three-way joint is communicated with the return gas main pipe and the liquid collecting main pipe, and the third interface of the second T-shaped three-way joint is plugged.

[0009] As a further improved technical scheme of the utility model, the first T-shaped three-way joint is communicated with the second T-shaped three-way joint, two horizontal interfaces of the first T-shaped three-way joint are connected with an outlet of the gas return main pipe and one horizontal interface of the second T-shaped three-way joint respectively, a third interface of the first T-shaped three-way joint is connected with the gas outlet main pipe, another horizontal interface of the second T-shaped three-way joint is blocked, and a third interface of the second T-shaped three-way joint is connected with the liquid collecting main pipe.

[0010] As a further improved technical scheme of the utility model, the first T-shaped three-way joint is welded on the gas return main pipe.

[0011] As a further improved technical scheme of the utility model, the second T-shaped three-way joint is welded on the gas return main pipe.

[0012] As a further improved technical scheme of the utility model, one end of the bypass pipe is inserted into the liquid collecting pipe, and the other end is inserted into the gas outlet pipe.

[0013] As a further improved technical scheme of the utility model, the bypass pipe is externally arranged.

[0014] As a further improved technical scheme of the utility model, the length of the bypass pipe inserted into the liquid collecting pipe is greater than the length of the bypass pipe inserted into the gas outlet pipe.

[0015] The utility model has the beneficial effects that:

[0016] Through the above structure, the traditional container type gas-liquid separator is replaced by the pipeline type gas-liquid separation device, the liquid carried by the gas in the gas return main pipe is separated, the liquid content of the compressor suction end is ensured to be qualified, the structure design is simple and compact, the application range is wide, the manufacturing cost is low, and no additional power is needed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of pipeline type gas-liquid separation device.

[0018] Among them: 1 - gas return main pipe, 2 - gas outlet pipe, 3 - liquid collecting pipe, 4 - bypass pipe. DETAILED DESCRIPTION

[0019] The utility model will be described in detail in combination with the specific implementation mode shown in the drawings. But these implementation modes do not limit the utility model, and the conversion of structure, method or function made by the ordinary skilled in the art according to these implementation modes is included in the protection scope of the utility model.

[0020] If the utility model for the time being involves the direction (for example, upper, lower, left, right, front, back, outer, inner, etc.), the direction involved needs to be defined, for example, "for clearly expressing the position and direction described in the utility model, taking the instrument operator as the reference, the end close to the operator is the proximal end, and the end far from the operator is the distal end." Or taking the paper as the reference, etc. are defined. Of course, if in the subsequent description, the position relationship between the two is defined by mutual reference, the definition can not be here.

[0021] A pipeline type gas-liquid separation device, as shown in Figure 1 The utility model discloses a pipeline type gas-liquid separation device, as shown in formula (1), including back gas main pipe 1, liquid collecting pipe 3, gas outlet pipe 2 and bypass pipe 4, back gas main pipe 1 is horizontally arranged, liquid collecting pipe 3 is communicated with back gas main pipe 1, gas outlet pipe 2 is communicated with back gas main pipe 1, gas-liquid mixture carries out gas-liquid separation in back gas main pipe 1, and the refrigerant gas after separation enters gas outlet pipe 2, and the refrigerant liquid after separation enters liquid collecting pipe 3, liquid collecting pipe 3 is arranged with back gas main pipe 1 to be inclined, and liquid collecting pipe 3 extends from back gas main pipe 1 downward, i.e. the liquid outlet of liquid collecting pipe 3 faces downward, and the liquid from back gas main pipe 1 into liquid collecting pipe 3 has the tendency of moving downward, gas outlet pipe 2 is arranged with back gas main pipe 1 to be inclined, and gas outlet pipe 2 extends from back gas main pipe 1 upward, and the gas from back gas main pipe 1 into gas outlet pipe 2 has the tendency of moving upward, bypass pipe 4 is communicated with liquid collecting pipe 3 and gas outlet pipe 2, and bypass pipe 4 is used for balancing the pressure between liquid collecting pipe 3 and gas outlet pipe 2, and the gas in liquid collecting pipe 3 enters gas outlet pipe 2 through bypass pipe 4.

[0022] The return gas main pipe 1 includes an inlet and a gas-liquid separation section. In the flow direction of the gas-liquid mixture, the inlet, gas-liquid separation section, outlet pipe 2, and collection pipe 3 are arranged sequentially. The outlet pipe 2 includes an outlet main pipe and a first T-shaped tee connector, which connects the return gas main pipe 1 and the outlet main pipe. The collection pipe 3 includes a collection main pipe and a second T-shaped tee connector, which connects the return gas main pipe 1 and the collection main pipe. The third port of the second T-shaped tee connector is sealed. The outlet pipe 2 is connected to the return gas main pipe 1 by welding the first T-shaped tee connector to it. The collection pipe 3 is connected to the return gas main pipe 1 by welding the second T-shaped tee connector to it. This not only enhances the stability of the connection but also facilitates later maintenance and replacement. In one embodiment of this utility model, the first T-shaped tee connector is connected to the second T-shaped tee connector. The two horizontal ports of the first T-shaped tee connector are respectively connected to the outlet of the return gas main pipe 1 and one horizontal port of the second T-shaped tee connector. The third port of the first T-shaped tee connector is connected to the outlet gas main pipe. The other horizontal port of the second T-shaped tee connector is sealed by a plug or other sealing material. The third port of the second T-shaped tee connector is connected to the liquid collection main pipe. In this embodiment, the second T-shaped tee connector can be welded to the first T-shaped tee connector. In another embodiment of this utility model, a section of return gas main pipe 1 can also be provided between the first T-shaped tee connector and the second T-shaped tee connector.

[0023] like Figure 1 As shown, one end of the bypass pipe 4 extends into the liquid collecting pipe 3, and the other end extends into the gas outlet pipe 2. This ensures that the refrigerant gas remaining in the liquid collecting pipe 3 can smoothly enter the gas outlet pipe 2, thereby preventing the accumulation of refrigerant gas in the liquid collecting pipe 3. The length of the bypass pipe 4 extending into the liquid collecting pipe 3 is greater than the length of the bypass pipe 4 extending into the gas outlet pipe 2, thereby maximizing the amount of gas in the liquid collecting pipe 3 that enters the bypass pipe 4. The bypass pipe 4 can be externally installed to maintain consistent gas pressure in the liquid collecting pipe 3 and the gas outlet pipe 2. Alternatively, the bypass pipe 4 can be internally installed to prevent refrigerant liquid from clogging the inlet of the gas outlet pipe 2.

[0024] The working principle of the utility model is as follows: the refrigerant gas-liquid mixture passes through the refrigeration pipeline return air pipe, flows into the above-mentioned pipeline type gas-liquid separation device, and due to the action of gravity, the refrigerant gas and the refrigerant liquid are stratified, the refrigerant gas floats on the top, and the refrigerant liquid drops on the bottom, passes through the first T-shaped three-way joint, the refrigerant gas enters the air outlet main pipe and flows out, and the refrigerant liquid continues to flow forward, passes through the second T-shaped three-way joint, and under the action of gravity, the refrigerant liquid flows into the liquid collecting main pipe, thereby realizing gas-liquid separation; in addition, due to the action of the balance pressure of the bypass pipe 4, the refrigerant gas originally stored in the liquid collecting pipe 3 flows into the air outlet pipe 2 through the bypass pipe 4, the refrigerant gas flows into the compressor through the air outlet pipe 2, the refrigerant liquid is stored in the liquid collecting pipe 3, and the compressor is protected.

[0025] The pipeline type gas-liquid separation device replaces the traditional container type gas-liquid separator with the pipeline type gas-liquid separation device, realizes gas-liquid separation by relying on liquid gravity and gas pressure, separates the liquid carried by the gas in the return air main pipe 1, ensures that the liquid content of the suction end of the compressor is qualified, has simple and compact structure design, wide application range, low manufacturing cost, and does not need additional power.

[0026] It should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0027] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, and they are not used to limit the protection scope of the utility model, and equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

Claims

1. A pipeline type gas-liquid separation device, characterized in that: it comprises a gas return main pipe (1), a liquid collecting pipe (3), a gas outlet pipe (2) and a bypass pipe (4), the gas return main pipe (1) is horizontally arranged, the liquid collecting pipe (3) is communicated with the gas return main pipe (1), the gas outlet pipe (2) is communicated with the gas return main pipe (1), the liquid outlet of the liquid collecting pipe (3) is downward, the gas outlet pipe (2) extends upward from the gas return main pipe (1), the bypass pipe (4) is communicated with the liquid collecting pipe (3) and the gas outlet pipe (2), the bypass pipe (4) is used for balancing the pressure between the liquid collecting pipe (3) and the gas outlet pipe (2), and the gas in the liquid collecting pipe (3) enters the gas outlet pipe (2) through the bypass pipe (4).

2. The pipeline type gas-liquid separation device according to claim 1, characterized in that: the gas return main pipe (1) comprises an inlet and a gas-liquid separation section, and the inlet, the gas-liquid separation section, the gas outlet pipe (2) and the liquid collecting pipe (3) are sequentially arranged in the flow direction of the gas-liquid mixture.

3. The pipeline type gas-liquid separation device according to claim 2, characterized in that: the gas outlet pipe (2) comprises a gas outlet main pipe and a first T-shaped tee joint, and the first T-shaped tee joint is communicated with the gas return main pipe (1) and the gas outlet main pipe.

4. The pipeline type gas-liquid separation device according to claim 3, characterized in that: the liquid collecting pipe (3) comprises a liquid collecting main pipe and a second T-shaped tee joint, the second T-shaped tee joint is communicated with the gas return main pipe (1) and the liquid collecting main pipe, and the third interface of the second T-shaped tee joint is blocked.

5. The pipeline type gas-liquid separation device according to claim 4, characterized in that: the first T-shaped tee joint is communicated with the second T-shaped tee joint, two horizontal interfaces of the first T-shaped tee joint are respectively connected with the outlet of the gas return main pipe (1) and one horizontal interface of the second T-shaped tee joint, the third interface of the first T-shaped tee joint is connected with the gas outlet main pipe, the other horizontal interface of the second T-shaped tee joint is blocked, and the third interface of the second T-shaped tee joint is connected with the liquid collecting main pipe.

6. The pipeline type gas-liquid separation device according to claim 3, characterized in that: the first T-shaped tee joint is welded on the gas return main pipe (1).

7. The pipeline type gas-liquid separation device according to claim 4, characterized in that: the second T-shaped tee joint is welded on the gas return main pipe (1).

8. The pipeline type gas-liquid separation device according to claim 1, characterized in that: one end of the bypass pipe (4) extends into the liquid collecting pipe (3), and the other end extends into the gas outlet pipe (2).

9. The pipeline type gas-liquid separation device according to claim 1, characterized in that: the bypass pipe (4) is arranged externally.

10. The pipeline type gas-liquid separation device according to claim 8, characterized in that: the length of the bypass pipe (4) extending into the liquid collecting pipe (3) is greater than the length of the bypass pipe (4) extending into the gas outlet pipe (2). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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