Gas-liquid separation liquid discharge device

Abstract

The utility model discloses a kind of gas-liquid separation drainage devices, a kind of gas-liquid separation drainage devices, including conduit, conduit communication separator, the inlet of the outlet of separator communication stop valve, the inlet of the outlet of stop valve communication first pneumatic valve, the inlet pipe of the outlet of first pneumatic valve communication liquid collecting tank, the top of liquid collecting tank is fixed and communicated with one end of air release pipe, the other end of air release pipe is fixed and communicated with the inlet of flame arrester, the outlet pipe of flame arrester is communicated with atmosphere. By centrifugal pump designed in liquid collecting tank outlet, waste liquid can be extracted from drainage pipeline in the process of water electrolysis device operation, avoid waste liquid corrosion pipeline, freeze crack pipeline. At the same time, the exhaust port of liquid collecting tank is connected to outdoor, effectively avoid hydrogen or oxygen in indoor gathering form explosive dangerous gas environment or oxygen-rich gas environment, enhance intrinsic safety, with the characteristics of high safety.

Description

Technical Field

[0001] This utility model belongs to the field of chemical safety emissions, specifically relating to a gas-liquid separation and discharge device. Background Technology

[0002] Currently, green electricity hydrogen production technology is of great significance in helping industrial decarbonization. On the one hand, it can drive revolutionary changes in the industrial sector and promote high-quality economic development; on the other hand, it can also bring economic benefits to industrial enterprises.

[0003] When a passive gas-liquid separator is used for drainage in a water electrolysis device, the waste liquid in the drainage pipeline cannot be extracted from the drainage pipeline in time, which will corrode the pipeline. In addition, in the cold winter weather, the pipeline will freeze and crack, causing economic losses. Summary of the Invention

[0004] This invention aims to solve the technical problem of safe discharge of waste liquid and waste gas generated during hydrogen production.

[0005] To solve the above problems, this application provides the following technical solution:

[0006] A gas-liquid separation and drainage device includes a conduit connected to a separator, the separator outlet connected to the inlet of a shut-off valve, the shut-off valve outlet connected to the inlet of a first pneumatic valve, and the first pneumatic valve outlet connected to the inlet pipe of a collection tank.

[0007] The top of the liquid collection tank is fixedly connected to one end of the vent pipe, the other end of the vent pipe is fixedly connected to the inlet of the flame arrester, and the outlet pipe of the flame arrester is connected to the atmosphere.

[0008] The bottom of the collection tank is fixedly connected to one end of the outlet pipe, the other end of the outlet pipe is fixedly connected to the inlet of the second pneumatic valve, the outlet of the second pneumatic valve is fixedly connected to the inlet of the centrifugal pump, the outlet of the centrifugal pump is fixedly connected to the inlet of the first ball valve, and the outlet of the first ball valve is fixedly connected to the inlet pipe at the top of the waste liquid tank.

[0009] The upper limit tube of the transmitter is fixedly connected to the top of the liquid collection tank.

[0010] The bottom of the liquid collection tank is fixedly connected to the lower limit tube of the transmitter.

[0011] The lower limit tube is located below the inlet tube, and the installation height of the lower limit tube is lower than the installation height of the inlet tube.

[0012] The upper limit stop is located above the inlet pipe, and the installation height of the upper limit stop is greater than that of the inlet pipe.

[0013] The bottom of the waste liquid tank is fixedly connected to a discharge pipe, and the discharge pipe is fixedly connected to a second ball valve.

[0014] The top of the waste liquid tank is fixedly connected to the upper limit port of the liquid level gauge.

[0015] The bottom of the waste liquid tank is fixedly connected to the lower limit port of the liquid level gauge.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. This utility model utilizes a centrifugal pump to promptly extract waste liquid from the drain pipe into a waste liquid tank. By designing a centrifugal pump at the outlet of the collection tank, the waste liquid can be extracted from the drain pipe during the operation of the water electrolysis device, preventing the waste liquid from corroding or freezing the pipe. Simultaneously, by connecting the exhaust port of the collection tank to the outdoors, it effectively prevents the accumulation of hydrogen or oxygen indoors, thus avoiding the formation of an explosive or oxygen-rich gas environment, resulting in a high level of safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a gas-liquid separation and drainage device.

[0019] Reference numerals: conduit 1, separator 2, shut-off valve 201, first pneumatic valve 202, collection tank 203, inlet pipe 2031, outlet pipe 2032, lower limit pipe 2033, upper limit pipe 2034, vent 2035, transmitter 204, flame arrester 205, second pneumatic valve 206, centrifugal pump 207, first ball valve 208, waste liquid tank 209, inlet pipe 2091, upper limit port pipe 2092, lower limit port pipe 2093, discharge pipe 2094, second ball valve 210, level gauge 211, air valve 212.

[0020] Preferably, separator 2 is a gas-water separator, model 2022-0224, purchased from Huanghua Baihengda Xiangtong Machinery Manufacturing Co., Ltd., along with its matching power supply circuit.

[0021] Preferably, the gate valve 201 and its matching power supply circuit are purchased from Shanghai Julang Valve Group Co., Ltd., model JL600-J1.

[0022] Preferably, the first pneumatic valve 202 is a two-way pneumatic valve. The first pneumatic valve 202 and the second pneumatic valve 206 are the same, and are purchased from Shanghai Julang Valve Group Co., Ltd., model JL600-Q1, along with the matching power supply circuit.

[0023] Preferably, transmitter 204 is a level transmitter, purchased from Wuhan CNNC Instrument Co., Ltd., model CN215, along with its matching power supply circuit. Preferably, flame arrester 205 is purchased from Jiangsu Bafang Safety Equipment Co., Ltd., model 6100. Preferably, centrifugal pump 207 is purchased from Southern Pump Industry Co., Ltd., model CDM20-2, along with its matching power supply circuit.

[0024] Preferably, the first ball valve 208 and the second ball valve 210 are the same, both purchased from KateTech Tianjin Technology Co., Ltd. as flanged two-way ball valves.

[0025] Preferably, the signal cable is purchased from Guangdong Huaxingtai Cable Co., Ltd., model AVVR.

[0026] Inlet pipe 2031 is the waste liquid inlet pipe, and outlet pipe 2032 is the waste liquid outlet pipe.

[0027] Inlet pipe 2091 is the waste liquid inlet pipe, and outlet pipe 2094 is the waste liquid outlet pipe.

[0028] The control terminals of the shut-off valve 201, the first pneumatic valve 202, the second pneumatic valve 206, the centrifugal pump 207, the first ball valve 208, and the second ball valve 210 are all electrically connected to the control signal output terminal of the PLC controller in the transmitter 204 via signal lines. This invention does not improve the power supply or circuitry of any instrument. Detailed Implementation

[0029] The embodiments of this utility model are further described below with reference to the accompanying drawings. The advantages and features of this utility model will become clearer as the description unfolds. However, the embodiments are merely exemplary and do not constitute any limitation on the scope of this utility model. Those skilled in the art should understand that modifications or substitutions to the details and form of the technical solution of this utility model can be made without departing from the spirit and scope of this utility model, but all such modifications and substitutions fall within the protection scope of this utility model.

[0030] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art will understand that this utility model can be implemented without these specific details. In other embodiments, the operating methods, processes, components, and circuits of well-known instruments are not described in detail to highlight the main points of this utility model. Information regarding these undescribed aspects can be directly obtained from the instruction manual of the purchased instrument model.

[0031] Example 1

[0032] like Figure 1 As shown, a gas-liquid separation and drainage device includes a conduit 1, which is connected to a separator 2. The outlet of the separator 2 is connected to the inlet of a shut-off valve 201, the outlet of the shut-off valve 201 is connected to the inlet of a first pneumatic valve 202, and the outlet of the first pneumatic valve 202 is connected to the inlet pipe 2031 of a collection tank 203.

[0033] The top of the liquid collection tank 203 is fixedly connected to one end of the vent pipe 2035, the other end of the vent pipe 2035 is fixedly connected to the inlet of the flame arrester 205, and the outlet pipe of the flame arrester 205 is connected to the atmosphere.

[0034] The bottom of the collection tank 203 is fixedly connected to one end of the outlet pipe 2032, the other end of the outlet pipe 2032 is fixedly connected to the inlet of the second pneumatic valve 206, the outlet of the second pneumatic valve 206 is fixedly connected to the inlet of the centrifugal pump 207, the outlet of the centrifugal pump 207 is fixedly connected to the inlet of the first ball valve 208, and the outlet of the first ball valve 208 is fixedly connected to the inlet pipe 2091 at the top of the waste liquid tank 209.

[0035] The top of the liquid collection tank 203 is fixedly connected to the upper limit tube 2034 of the transmitter 204.

[0036] The bottom of the liquid collection tank 203 is fixedly connected to the lower limit tube 2033 of the transmitter 204.

[0037] The lower limit tube 2033 is located below the inlet tube 2031, and the installation height of the lower limit tube 2033 is lower than the installation height of the inlet tube 2031.

[0038] The upper limit tube 2034 is located above the inlet tube 2031, and the installation height of the upper limit tube 2034 is greater than the installation height of the inlet tube 2031.

[0039] The bottom of the waste liquid tank 209 is fixedly connected to the discharge pipe 2094, and the discharge pipe 2094 is fixedly connected to the second ball valve 210.

[0040] The top of the waste liquid tank 209 is fixedly connected to the upper limit port 2092 of the liquid level gauge 211.

[0041] The bottom of the waste liquid tank 209 is fixedly connected to the lower limit port 2093 of the liquid level gauge 211.

[0042] Preferably, the top of the waste liquid tank 209 is also fixedly connected to an air valve 212.

[0043] Preferably, one end of the conduit 1 is connected to a storage tank for waste liquid and waste gas.

[0044] The waste liquid and gas from separator 2 are connected to the waste liquid inlet pipe 2031 of collection tank 203 via shut-off valve 201 and first pneumatic valve 202;

[0045] The vent pipe 2035 of the liquid collection tank 203 is connected to the outdoor high atmosphere via the flame arrester 205;

[0046] The waste liquid inside the collection tank 203 is connected to the inlet of the centrifugal pump 207 via the waste liquid outlet pipe 2032 and the second pneumatic valve 206 in sequence.

[0047] The outlet of centrifugal pump 207 is connected to the inlet pipe 2091 of waste liquid tank 209 via the first ball valve 208;

[0048] Waste liquid outlet pipe 404 of waste liquid tank 209 is connected to the second ball valve 212.

[0049] like Figure 1 As shown, the transmitter 204 is installed on the liquid collection tank 203, and the level gauge 211 is installed on the waste liquid tank 209.

[0050] like Figure 1 As shown, the first pneumatic valve 202 and the second pneumatic valve 206 are electrically connected to the transmitter 204 via signal lines. The first pneumatic valve 202 and the second pneumatic valve 206 receive the switching signals transmitted by the transmitter 204. The transmitter 204 controls the first pneumatic valve 202 and the second pneumatic valve 206 respectively via low-voltage signal lines and sends opening and closing commands to them.

[0051] like Figure 1 As shown, the lower limit pipe 2033 of transmitter 204 is lower than the waste liquid inlet pipe 2031 of collection tank 203, and the upper limit pipe 2034 of transmitter 204 is higher than the waste liquid inlet pipe 2031 of collection tank 203. The vent pipe 2035 of collection tank 203 is located at the highest point of the top of collection tank 203. The waste liquid outlet pipe 2032 of collection tank 203 is located at the lowest point of the bottom of collection tank 203.

[0052] like Figure 1 As shown, the waste liquid tank 209 has a horizontal structure. The inlet pipe 2091 is located at the top of the waste liquid tank 209. The upper limit port 2092 of the level gauge 211 is located at the top of the waste liquid tank 209. The lower limit port 2093 of the level gauge 211 is located at the bottom of the waste liquid tank 209. The waste liquid discharge pipe 2094 of the waste liquid tank 209 is located at the bottom of the waste liquid tank 209.

[0053] The air valve 212 is normally open and is used to balance the air pressure inside the waste liquid tank 209.

[0054] The real-time liquid level of the collection tank 203 is measured by the transmitter 204.

[0055] The real-time liquid level of the collection tank 203 is recorded as liquid level L. 实 .

[0056] The liquid level at the height of the upper limit pipe 2034 of the liquid collection tank 203 is denoted as L. 上 ,

[0057] The liquid level at the height of the lower limit tube 2033 of the liquid collection tank 203 is denoted as L. 下 .

[0058] The operating principle of a gas-liquid separation and drainage device includes the following steps:

[0059] Step S1, Real-time liquid level L in collection tank 203 实 With L 下 L 上 Compare sizes.

[0060] If L is detected 实 ≤L 下 Then proceed to step S1.1. In step S1.1, the first pneumatic valve 202 is opened, the second pneumatic valve 206 is closed, the centrifugal pump 209 is stopped, and the waste liquid flows from the separator 2 through the shut-off valve 201 and the first pneumatic valve 202 into the collection tank 203 via the waste liquid inlet pipe 2031. The gas in the waste liquid is discharged to the outdoor atmosphere through the vent pipe 2035 and the flame arrester 205 of the collection tank 203.

[0061] If L is detected 下 ≤L 实 ≤L 上 Then proceed to step S1.2. In step S1.2, the first pneumatic valve 202 opens, the second pneumatic valve 206 closes, the centrifugal pump 207 stops, and the waste liquid flows from the separator 2 through the shut-off valve 201 and the first pneumatic valve 202 into the collection tank 203 via the waste liquid inlet pipe 2031. The gas in the waste liquid is discharged to the outside through the vent pipe 2035 of the collection tank 203 and the flame arrester 205. Then return to step S1 to detect and compare L. 实 With L 下 L 上 Size.

[0062] If L is detected 实 ≥L 上 Then proceed to step S1.3. In step S1.3, the first pneumatic valve 202 is closed, the second pneumatic valve 206 is opened, the centrifugal pump 207 is started, and the waste liquid in the collection tank 203 is drawn from the waste liquid outlet pipe 2032 through the second pneumatic valve 206 by the centrifugal pump 207 and discharged into the waste liquid tank 209 through the first ball valve 208; then return to step S1 to detect and compare L. 实 With L 下 L 上 Size.

[0063] The embodiments of this utility model have been disclosed above. However, these embodiments are not intended to limit the scope of this utility model. Simple equivalent changes and modifications made based on the claims and description of this utility model still fall within the scope of this utility model's technical solution. It should be understood that the terms "inlet," "one end," "the other end," "outlet," "top," "bottom," "located," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Unless otherwise specified, the "fixed connection" described in this application is achieved by conventional methods, such as bonding.

[0064] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connecting," "fixedly connected," "installed," "connected," "equipped," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A gas-liquid separation and drainage device, comprising a conduit (1), characterized in that, The conduit (1) is connected to the separator (2), the outlet of the separator (2) is connected to the inlet of the shut-off valve (201), the outlet of the shut-off valve (201) is connected to the inlet of the first pneumatic valve (202), and the outlet of the first pneumatic valve (202) is connected to the inlet pipe (2031) of the liquid collection tank (203).

2. The gas-liquid separation and drainage device according to claim 1, characterized in that, The top of the liquid collection tank (203) is fixedly connected to one end of the vent pipe (2035), the other end of the vent pipe (2035) is fixedly connected to the inlet of the flame arrester (205), and the outlet pipe of the flame arrester (205) is connected to the atmosphere.

3. The gas-liquid separation and drainage device according to claim 1, characterized in that, The bottom of the collection tank (203) is fixedly connected to one end of the outlet pipe (2032), the other end of the outlet pipe (2032) is fixedly connected to the inlet of the second pneumatic valve (206), the outlet of the second pneumatic valve (206) is fixedly connected to the inlet of the centrifugal pump (207), the outlet of the centrifugal pump (207) is fixedly connected to the inlet of the first ball valve (208), and the outlet of the first ball valve (208) is fixedly connected to the inlet pipe (2091) at the top of the waste liquid tank (209).

4. The gas-liquid separation and drainage device according to claim 1, characterized in that, The top of the liquid collection tank (203) is fixedly connected to the upper limit tube (2034) of the transmitter (204).

5. The gas-liquid separation and drainage device according to claim 1, characterized in that, The bottom of the liquid collection tank (203) is fixedly connected to the lower limit tube (2033) of the transmitter (204).

6. The gas-liquid separation and discharge device according to claim 5, characterized in that, The lower limit tube (2033) is located below the inlet tube (2031), and the installation height of the lower limit tube (2033) is lower than the installation height of the inlet tube (2031).

7. The gas-liquid separation and drainage device according to claim 4, characterized in that, The upper limit tube (2034) is located above the inlet tube (2031), and the installation height of the upper limit tube (2034) is greater than the installation height of the inlet tube (2031).

8. A gas-liquid separation and drainage device according to claim 3, characterized in that, The bottom of the waste liquid tank (209) is fixedly connected to the discharge pipe (2094), and the discharge pipe (2094) is fixedly connected to the second ball valve (210).

9. A gas-liquid separation and discharge device according to claim 3, characterized in that, The top of the waste liquid tank (209) is fixedly connected to the upper limit port (2092) of the level gauge (211).

10. A gas-liquid separation and drainage device according to claim 3, characterized in that, The bottom of the waste liquid tank (209) is fixedly connected to the lower limit port (2093) of the liquid level gauge (211).

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