CN218982664U - Single-well multilayer biphase extraction wellhead - Google Patents

Abstract

The utility model discloses a single-well multilayer double-phase extraction wellhead, which relates to the technical field of restoration and treatment of soil and groundwater environment and comprises an extraction wellhead main body, a U-shaped three-face connector, a nipple regulating valve, a long nipple regulating valve, a short-circuit PVC pipe and a long-connection PVC pipe, wherein an intra-well gas pipe interface, a double-phase extraction equipment main pipe connecting port and an external gas-pressure pipe interface are arranged on the extraction wellhead main body, one end of the extraction wellhead main body is connected with the U-shaped three-face connector, the other two ends of the U-shaped three-face connector are respectively connected with the nipple regulating valve and the long nipple regulating valve, one end of the nipple regulating valve is connected with the short-circuit PVC pipe, and one end of the long nipple regulating valve is connected with the long-connection PVC pipe. The multi-layer extraction effect can be developed by connecting the main pipe of the equipment to the multi-layer double-phase extraction wellhead of the single well, the double-phase extraction equipment is connected into the well through the main pipe, and the high negative pressure can suck the water phase and the gas phase in the well into the gas-liquid separation tank in the double-phase extraction equipment for separation.

Description

Single-well multilayer biphase extraction wellhead

Technical field:

the utility model relates to a single-well multilayer biphase extraction wellhead, and belongs to the technical field of restoration and treatment of soil and groundwater environments.

The background technology is as follows:

at present, the soil and underground water remediation wellhead design is a single-port single-layer treatment design, and air and underground water in a well are extracted by a specific vacuum pump, so that the defects and defects caused by the existing structure are divided into three points; 1. cost: in the method for removing or degrading the target pollutant based on the repairing scheme, if the space of the gas-covered belt is required to be increased and the polluted water is required to be extracted, a submerged pump, related wires and pipelines are required to be placed in the well, the cost and the energy consumption are also greatly increased in equipment configuration and electricity consumption, and the method does not meet the environment-friendly aim of the current national requirements; 2. aging: based on the above situation, when the water level of the field must be controlled at the polluted site to realize the hydraulic control and post-treatment of volatile organic compounds in the soil, or when pure phase liquid (such as liquid lighter than water) at the water level interface is required to be removed, multiple factors such as the need of recovering the pure phase, pumping water to reduce the water level and pumping gas in the well occur, and more time is needed to treat the situation if the groundwater is more abundant; 3. single: because of the design factors of the well head, the limitation of the site repair scheme is obvious and complex, only one purpose can be selected on a single time node when the construction scheme is selected, and all the existing repair sites have certain time pressure, can be selectively limited, and can only increase the cost to increase the number of the repair wells to achieve the achievement required by the scheme.

The traditional single-layer extraction well is characterized in that a plurality of limitations are added on soil and underground water restoration, the practical operation is relatively troublesome, more site constructors are needed, valves which are required to be frequently adjusted before and after the restoration or a water pump in the well is replaced, the cost of owners is greatly increased, more time explanation is wasted in early communication, the environment under the ground is not consistent, larger soil layer changes can occur at a distance of each few meters of the field, the soil layer changes obviously different for the single layer and the multiple layers, like the limitation of the single layer on the multi-layer extraction well head, different treatment methods are needed, the multi-layer extraction well head can firstly extract and recycle pure phase liquid when the pollution is relatively serious, volatile organic gases in the soil are simultaneously removed for treatment, more time is collected under the environment with relatively negative pressure, the environment with relatively large influence radius is more than that under the condition without negative pressure, the environment under the condition, the condition that the lower end of the pure phase is removed, the next polluted soil layer changes, the soil layer changes possibly, the soil layer changes when the pure phase is extracted, the existing pipe is extended to the target layer is prolonged, the target water is not met, the target layer is continuously polluted, and the water is continuously polluted when the water is extracted to the target layer is completely, the target layer is dissolved in the soil layer is continuously polluted, and the target layer is continuously polluted, and the water is polluted when the target layer is removed.

The utility model comprises the following steps:

aiming at the problems, the utility model aims to provide a single-well multi-layer double-phase extraction wellhead.

The utility model discloses a single-well multilayer double-phase extraction wellhead, which comprises an extraction wellhead main body, a U-shaped three-face connector, a nipple regulating valve, a long nipple regulating valve, a short PVC pipe and a long nipple PVC pipe, wherein an intra-well gas pipe interface, a double-phase extraction equipment main pipe connecting port and an external gas pipe interface are arranged on the extraction wellhead main body, one end of the double-phase extraction equipment main pipe connecting port is connected with the U-shaped three-face connector, the other two ends of the U-shaped three-face connector are respectively connected with the nipple regulating valve and the long nipple regulating valve, one end of the nipple regulating valve is connected with the short PVC pipe, and one end of the long nipple regulating valve is connected with the long nipple PVC pipe.

Preferably, the main body of the extraction well head is communicated with the interface of the air-pressing pipe inside and outside the well, wherein the interface of the internal pressure and the external pressure is provided with a pressure gauge firstly, so that the pressure change inside and outside the well can be conveniently observed, the pressure change in the air-pressing pipe inside and outside the well is observed, and whether the water is continuously pumped or pumped to a critical point in the well is observed.

The utility model has the beneficial effects that: the device is reasonable in structural design, simple to install and convenient to use, the device main pipe is connected to the single-well multi-layer double-phase extraction wellhead, the multi-layer extraction effect can be developed, the device is connected into the well through the main pipe, high negative pressure can suck water in the well into the gas-liquid separation tank in the double-phase extraction device for separation, the negative pressure supplied by the main pipe before improvement can only work singly, when the water level is higher, the negative pressure can only extract water in the well into the gas-liquid separation tank for separation because of no break, the time spent by the part when the water level is higher is relatively long, the negative pressure of the improved device is changed into multiplex treatment from the single-well multi-layer double-phase extraction wellhead, when the water level is higher, two pipes of the single-well multi-layer double-phase extraction wellhead can be pumped at the same time, when the water level is lower than the short pipe, the short pipe starts pumping treatment, and the long pipe can continue pumping to manufacture larger gas-packing belt space to enable the device to have better pumping effect, when the well has heavy polluted pure phase liquid, the long pipe can be placed to the water level and the pure liquid can be pumped to the pure liquid phase interface, and the pure liquid can be processed by the gas phase can be intersected with the pure liquid to the pure liquid phase processing interface, and the pure liquid can be recycled.

Description of the drawings:

for ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.

Fig. 1 is a schematic structural view of the present utility model.

1-extracting a wellhead main body; 11-an out-of-well gas-pressure tube interface I; 12-a main pipe connection port of the double-phase extraction equipment; 13-a second intra-well pressure tracheal interface; 2-U-shaped three-face joint; 3-nipple regulating valve; 4-a long connecting pipe regulating valve; 5-shorting the PVC pipe; 6-long PVC pipe.

The specific embodiment is as follows:

as shown in fig. 1, the present embodiment adopts the following technical scheme: the device comprises an extraction wellhead main body 1, a U-shaped three-sided connector 2, a nipple regulating valve 3, a long nipple regulating valve 4, a short-circuit PVC pipe 5 and a long-circuit PVC pipe 6, wherein an external gas-pressure pipe interface 11, a main pipe connecting port 12 of the double-phase extraction equipment and an internal gas-pressure pipe interface 13 are arranged on the extraction wellhead main body 1, one end of the main pipe connecting port 12 of the double-phase extraction equipment is connected with the U-shaped three-sided connector 2, the other two ends of the U-shaped three-sided connector 2 are respectively connected with the nipple regulating valve 3 and the long nipple regulating valve 4, one end of the nipple regulating valve 3 is connected with the short-circuit PVC pipe 5, one end of the long nipple regulating valve 4 is connected with the long-circuit PVC pipe 6, the main pipe connecting port 12 of the double-phase extraction device is communicated with the intra-well pressure air pipe interface 13, the main body 1 of the extraction well head is communicated with the external pressure air pipe interface 11, the external pressure air pipe interface 11 and the internal pressure air pipe interface 13 are used for connecting a pressure gauge, the pressure change of the inside and the outside of the well can be conveniently observed, the internal pressure air pipe interface 13 is used for observing the pressure change of the pipe, whether the pipe is continuously pumped or pumped to a critical point is observed, the internal pressure air pipe interface 11 is used for observing the pressure change of the outside of the pipe, and whether the gas phase and the water phase are simultaneously pumped or not is observed.

The working principle of the specific embodiment is as follows: the main pipe of the extraction pump equipment is connected to the main pipe connecting port 12 of the double-phase extraction equipment through an equipment air inlet, a 90-degree elbow made of stainless steel is adopted, the main pipe connecting port 12 of the double-phase extraction equipment is connected to the main pipe air inlet control unit, the main pipe connecting port 12 of the double-phase extraction equipment is connected with the U-shaped three-face joint 2, the main parts of the single-well multi-layer double-phase extraction wellhead are acted by the short pipe adjusting valve 3 and the long pipe adjusting valve 4, the short pipe adjusting valve 3 and the long pipe adjusting valve 4 are acted by the attractive force caused by negative pressure of two long and short pipes of the short PVC pipe 5 and the long pipe 6, when the short pipe adjusting valve 3 needs to suck more air, the inlet of the adjusting valve is larger, otherwise, the size of the adjusting valve is adjusted, when the long pipe adjusting valve 4 needs to control water power and remove target pollutants, the size of the short pipe 5 is placed at a depth where a gas-covering zone is serious and the porosity is loose, the long pipe 6 is placed at a critical point where pure phase liquid or the water level needs to be controlled, and the length of the water level needs to be controlled after the phase is removed.

The device is connected to the single-well multi-layer double-phase extraction wellhead, the multi-layer extraction effect can be developed, the device is connected to the well through the main pipe, water in the well can be sucked into the gas-liquid separation groove in the double-phase extraction device through high negative pressure, the negative pressure supplied by the main pipe before improvement can only work singly, when the water level is higher, the negative pressure can only firstly extract the water in the well into the gas-liquid separation groove for separation because of no break, the time spent by the part when the water level is higher is relatively long, the negative pressure of the improved device is changed into multiplex treatment from the single-well multi-layer double-phase extraction wellhead, when the water level is higher, two pipes of the single-well multi-layer double-phase extraction wellhead can be simultaneously pumped, when the water level is reduced to the short pipe, the short pipe starts pumping treatment, the long pipe can continuously pump water to manufacture larger bag gas band space, the device has better pumping effect, when the water level is polluted in the well, the long pipe can be placed to the pure liquid phase, the pure water can be pumped to the pure air can be intersected with the pure gas phase device, and the pure liquid can be recycled to the air treatment interface.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. The utility model provides a single well multilayer diphase extraction wellhead which characterized in that: the novel three-face joint comprises an extraction well head main body (1), a U-shaped three-face joint (2), a nipple adjusting valve (3), a long nipple adjusting valve (4), a short-circuit PVC pipe (5) and a long-circuit PVC pipe (6), wherein an outdoor air-pressing pipe interface (11), a main pipe connecting port (12) of a double-phase extraction device and an intra-well air-pressing pipe interface (13) are arranged on the extraction well head main body (1), one end of the main pipe connecting port (12) of the double-phase extraction device is connected with the U-shaped three-face joint (2), and the other two ends of the U-shaped three-face joint (2) are respectively connected with the nipple adjusting valve (3) and the long nipple adjusting valve (4).

2. A single well multi-layer bi-phase extraction wellhead according to claim 1, wherein: one end of the short connecting pipe adjusting valve (3) is connected with a short connecting PVC pipe (5), and one end of the long connecting pipe adjusting valve (4) is connected with a long connecting PVC pipe (6).

3. A single well multi-layer bi-phase extraction wellhead according to claim 1, wherein: the main pipe connecting port (12) of the double-phase extraction equipment is communicated with the intra-well pressure air pipe interface (13).

4. A single well multi-layer bi-phase extraction wellhead according to claim 1, wherein: the extraction well head main body (1) is communicated with an external pressure gas pipe interface (11).

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