Gas-liquid two-phase gravity type separator

Abstract

The utility model discloses a gas-liquid two-phase gravity type separator which comprises a tank body, an exhaust component, a booster pump, a liquid level meter and a control cabinet, an exhaust port is formed in the top of the tank body; a water inlet is formed in the upper part of the side wall of the tank body; the exhaust assembly comprises an exhaust pipe, a manual deflation valve and an electromagnetic valve. One end of the exhaust pipe is communicated with the exhaust port, and the other end of the exhaust pipe is connected in parallel with a manual deflation valve and an electromagnetic valve which are distributed in parallel; the booster pump is arranged outside the tank body and is communicated with the interior of the tank body; the tank body is provided with a liquid level meter for detecting the water level change in the tank body; the control cabinet is arranged outside the tank body and connected with the liquid level meter and the electromagnetic valve through wires. The separator is good in separation effect, and the service life of the valve can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separation equipment, and more particularly to a gas-liquid two-phase gravity separator. Background Art

[0002] The gas-liquid two-phase gravity separator is used to separate water from ground source heat pump water or other gas-containing water during pipeline transportation, so as to ensure smooth liquid transportation and better protect pipes, valves, pumps and other facilities along the pipeline.

[0003] At present, an automatic exhaust valve is set at the top of the gas-liquid separator for exhaust. It will only open when a fixed pressure is reached. After it is opened, the pressure in the separator drops and water cannot enter the separator normally. In this regard, the automatic exhaust valve is replaced with an electric exhaust valve. However, since the opening and closing of the electric exhaust valve needs to be frequently adjusted according to the changes in the water level in the separator, its service life will be reduced.

[0004] Therefore, it is an urgent problem for those skilled in the art to develop a gas-liquid two-phase gravity separator that has good separation effect and can extend the service life of the valve. Utility Model Content

[0005] In view of this, the utility model provides a gas-liquid two-phase gravity separator which has good separation effect and can extend the service life of the valve.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gas-liquid two-phase gravity separator, comprising:

[0008] A tank body, wherein an exhaust port is provided on the top of the tank body; a water outlet is provided on the lower portion of the side wall of the tank body, and a water inlet is provided on the upper portion;

[0009] An exhaust assembly, comprising: an exhaust pipe, a manual air release valve, and a solenoid valve; one end of the exhaust pipe is connected to the exhaust port, and the other end is connected in parallel to the manual air release valve and the solenoid valve, and the manual air release valve and the solenoid valve are distributed in parallel;

[0010] a booster pump, the booster pump being arranged outside the tank body and communicating with the interior of the tank body;

[0011] Liquid level gauge: the tank body is provided with a liquid level gauge for detecting changes in the water level in the tank body;

[0012] A control cabinet is arranged outside the tank body and is electrically connected to the liquid level meter and the solenoid valve.

[0013] The beneficial effect of adopting the above technical solution is that the manual air release valve in the utility model is in a normally open state, and the exhaust speed of the manual air release valve is lower than the air intake speed of the tank body, which reduces the speed of gas increase in the tank body, can reduce the number of opening and closing times of the solenoid valve, and thus increase the life of the solenoid valve; at the same time, after the hot water enters the tank body and releases the pressure, a large amount of dissolved gas is released, which can improve the effect of gas-liquid separation; since the manual valve is in a normally open state, hot water entering the tank body will greatly reduce the pressure in the tank, and the subsequent process water circulation of the heating project can be realized by increasing the pressure with the additional pump after the gas-liquid separation tank.

[0014] Preferably, the exhaust assembly further includes a safety valve, a backup solenoid valve, and a vent valve. The safety valve, backup solenoid valve, and vent valve are all connected to the exhaust pipe and are arranged in parallel. The safety valve is located at the end of the exhaust pipe. The safety valve, backup solenoid valve, manual vent valve, solenoid valve, and vent valve are independent of each other and do not interfere with each other. In the event of a solenoid valve failure, the backup solenoid valve is activated.

[0015] Preferably, the backup solenoid valve and the branch pipeline of the exhaust pipe where the solenoid valve is located are both provided with gate valves. The opening and closing of the gate valves can control the on-off of the pipeline.

[0016] Preferably, the liquid level gauge is a magnetic flap liquid level gauge. The magnetic flap liquid level gauge can detect the water level in the tank and transmit the information to the control cabinet. When the liquid level reaches the upper limit or lower limit, the control cabinet will control the opening and closing of the solenoid valve.

[0017] Preferably, a filter is connected to the water outlet of the tank body to filter impurities in the water flowing out of the tank body.

[0018] Preferably, a foundation is provided at the bottom of the tank, and the filter and the control cabinet are both provided on the foundation, so that the connection between the tank, the filter and the control cabinet is more stable.

[0019] Preferably, a manhole is provided at the bottom of the side wall of the tank body, which facilitates inspection and maintenance of the interior of the tank body.

[0020] Preferably, the side wall of the tank body is provided with a viewing hole, and a sight glass is installed at the viewing hole. The viewing hole facilitates observation of the situation inside the tank body.

[0021] It can be seen from the above technical solution that, compared with the prior art, the present invention provides a gas-liquid two-phase gravity separator, which has the following beneficial effects:

[0022] (1) The manual air release valve in the present invention is in a normally open state, and the exhaust speed of the manual air release valve is lower than the intake speed of the tank body, which reduces the speed of gas increase in the tank body, can extend the opening and closing time of the solenoid valve, effectively avoid the frequent opening of the solenoid valve, and thus improve the life of the solenoid valve;

[0023] (2) After the hot water enters the tank and releases pressure, a large amount of dissolved gas is released, which can improve the effect of gas-liquid separation;

[0024] (3) Since the manual valve is in the normally open state, hot water entering the tank will greatly reduce the pressure inside the tank. By increasing the pressure with the additional pump after the gas-liquid separation tank, the subsequent process water circulation of the heating project can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0026] Figure 1 The accompanying drawing is a top view of the separator provided by the utility model connected to the substrate;

[0027] Figure 2 The accompanying drawing is a top view of the separator provided by the utility model;

[0028] Figure 3 The accompanying drawings are provided by the utility model Figure 2 Cross-sectional view at AA in the middle;

[0029] Figure 4 The accompanying drawing is a schematic structural diagram of the exhaust assembly provided by the present invention.

[0030] Among them, in the figure,

[0031] 1-tank body;

[0032] 11- Exhaust port; 12- Liquid level gauge mounting hole; 13- Water outlet; 14- Water inlet; 15- Manhole; 16- Sight hole;

[0033] 2-Exhaust assembly;

[0034] 21-exhaust pipe; 22-manual air release valve; 23-solenoid valve; 24-safety valve; 25-spare solenoid valve; 26-air release valve;

[0035] 3-Control cabinet; 4-Filter; 5-Foundation. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The present invention discloses a gas-liquid two-phase gravity separator, comprising:

[0038] The tank body 1 has an exhaust port 11 at the top, a water outlet 13 at the bottom of the side wall of the tank body 1 and a water inlet 14 at the top.

[0039] The exhaust assembly 2 includes an exhaust pipe 21, a manual air release valve 22, and a solenoid valve 23. One end of the exhaust pipe 21 is connected to the exhaust port 11, and the other end is connected in parallel to the manual air release valve 22 and the solenoid valve 23. The manual air release valve 22 and the solenoid valve 23 are distributed in parallel.

[0040] A booster pump is provided outside the tank body 1 and is connected to the inside of the tank body 1;

[0041] Liquid level gauge: the tank body 1 is provided with a liquid level gauge for detecting changes in the water level in the tank body 1;

[0042] The control cabinet 3 is located outside the tank 1 and is electrically connected to the liquid level gauge and the solenoid valve 23. The liquid level gauge and the solenoid valve 23 can be connected to the control cabinet 3 via wires. The control cabinet 3 contains a PLC controller that receives signals from the liquid level gauge and controls the solenoid valve 23.

[0043] To further optimize the above technical solution, the exhaust assembly 2 further includes a safety valve 24, a backup solenoid valve 25, and a vent valve 26. The safety valve 24, backup solenoid valve 25, and vent valve 26 are all connected to the exhaust pipe 21. The safety valve 24, backup solenoid valve 25, manual air release valve 22, solenoid valve 23, and vent valve 26 are arranged in parallel. The safety valve 24 is located at the end of the exhaust pipe 21. The safety valve 24 relieves pressure to prevent the tank 1 from exploding.

[0044] In order to further optimize the above technical solution, three branch pipelines are extended at the end of the exhaust pipe 21, among which the safety valve 24 is connected to the end port of the exhaust pipe 21, and the manual air release valve 22, the vent valve 26, the solenoid valve 23 and the spare solenoid valve 25 are respectively connected to the branch pipelines and are independently arranged.

[0045] In order to further optimize the above technical solution, gate valves are provided on the branch lines of the exhaust pipe 21 where the standby solenoid valve 25 and the solenoid valve 23 are located.

[0046] To further optimize the above technical solution, a magnetic flap level gauge is used as the liquid level gauge. A liquid level gauge mounting hole 12 is provided on the tank body 1, through which the magnetic flap level gauge is mounted. Two liquid level gauges are provided, one for each position near the upper and lower limits of the liquid level.

[0047] In order to further optimize the above technical solution, a filter 4 is connected to the water outlet 13 of the tank body 1 .

[0048] In order to further optimize the above technical solution, a foundation 5 is provided at the bottom of the tank body 1 , and the filter 4 and the control cabinet 3 are both arranged on the foundation 5 .

[0049] In order to further optimize the above technical solution, a manhole 15 is provided at the bottom of the side wall of the tank body 1. A hole cover is installed at the manhole 15, and when no maintenance is required, the manhole 15 is sealed by the hole cover.

[0050] In order to further optimize the above technical solution, the side wall of the tank body 1 is provided with a viewing hole 16, and a sight glass is installed at the viewing hole 16. There are two viewing holes 16 at the upper and lower ends of the tank body 1.

[0051] Working principle:

[0052] This separator processes geothermal water, which is drawn from deep groundwater at depths of 1200-1500 meters. This water contains large amounts of carbon dioxide, nitrogen, and small amounts of flammable gases. If not effectively released at the wellhead, this can jeopardize the safe operation of the heat exchange station. The process for releasing the gas from the geothermal water is as follows: The geothermal water is pumped by a deep-well pump to a surface-mounted gas-liquid separator tank, where the pressure drops from 0.8-1.0 MPa to approximately 0.25 MPa. A large amount of dissolved gas is released, resulting in a low-density gas that collects at the top of the separator tank. The gas then passes through the exhaust port 11 at the top of the tank and is then connected to the exhaust assembly 2 via a connecting pipe. Both the manual air release valve 22 and the solenoid valve 23 can achieve the function of deflation. By manually adjusting the manual air release valve 22, the amount of air released is exactly equal to the gas content of the upstream geothermal water. In this way, the electric valve 23 almost does not need to be opened to achieve safe and stable deflation. However, since the amount of geothermal water produced and the gas content per unit time are not balanced, if the manual air release valve 22 is opened too much, there will be a risk of hot water escaping from the tank. Therefore, it is impossible to rely solely on the manual air release valve 22 to achieve stable deflation. Therefore, the manual air release valve 22 can only be opened to a larger value as much as possible. The remaining gas volume is stored in the tank body 1 and is discharged by opening the solenoid valve in time with the help of the liquid level meter and the PLC controller. When there is a lot of gas in the tank 1, the inside of the tank body 1 is at a low water level. The PLC controller controls the solenoid valve 23 according to the upper and lower limits of the liquid level in the tank body 1 that have been set. When the liquid level reaches the lower limit or the upper limit, the PLC controller will control the solenoid valve 23 to open and close accordingly. After the hot water enters the gas-liquid separation tank, since the manual air release valve 22 is normally open, the hot water enters the tank body 1, which will greatly reduce the pressure in the tank body 1. The subsequent process water circulation of the heating project can be achieved by increasing the pressure through the additional pump installed after the gas-liquid separation tank.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0054] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gas-liquid two-phase gravity separator, characterized in that: include: A tank body (1), wherein an exhaust port (11) is provided at the top of the tank body (1); a water outlet (13) is provided at the lower portion of the side wall of the tank body (1), and a water inlet (14) is provided at the upper portion; An exhaust assembly (2), the exhaust assembly (2) comprising: an exhaust pipe (21), a manual air release valve (22) and a solenoid valve (23); one end of the exhaust pipe (21) is in communication with the exhaust port (11), and the other end is connected to the manual air release valve (22) and the solenoid valve (23), and the manual air release valve (22) and the solenoid valve (23) are distributed in parallel; a booster pump, the booster pump being arranged outside the tank body (1) and being in communication with the interior of the tank body (1); A liquid level meter, wherein the tank body (1) is provided with a liquid level meter for detecting changes in the water level in the tank body (1); A control cabinet (3) is arranged outside the tank body (1) and is electrically connected to the liquid level meter and the electromagnetic valve (23).

2. A gas-liquid two-phase gravity separator according to claim 1, characterized in that: The exhaust assembly (2) further comprises a safety valve (24), a spare solenoid valve (25) and a vent valve (26); the safety valve (24), the spare solenoid valve (25) and the vent valve (26) are all connected to the exhaust pipe (21), and the safety valve (24), the spare solenoid valve (25), the manual air release valve (22), the solenoid valve (23) and the vent valve (26) are arranged in parallel; the safety valve (24) is located at the end of the exhaust pipe (21).

3. A gas-liquid two-phase gravity separator according to claim 2, characterized in that: Gate valves are provided on the branch lines of the exhaust pipe (21) where the standby solenoid valve (25) and the solenoid valve (23) are located.

4. A gas-liquid two-phase gravity separator according to claim 1, characterized in that: The liquid level meter is a magnetic flap liquid level meter.

5. The gas-liquid two-phase gravity separator according to claim 1, characterized in that: The water outlet (13) of the tank body (1) is connected to a filter (4).

6. A gas-liquid two-phase gravity separator according to claim 5, characterized in that: A foundation (5) is provided at the bottom of the tank body (1), and the filter (4) and the control cabinet (3) are both provided on the foundation (5).

7. The gas-liquid two-phase gravity separator according to claim 1, characterized in that: A manhole (15) is provided at the bottom of the side wall of the tank body (1).

8. The gas-liquid two-phase gravity separator according to claim 1, characterized in that: The side wall of the tank body (1) is provided with a viewing hole (16), and a viewing mirror is installed at the viewing hole (16).

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