CN212285276U - Fluid countercurrent state monitoring assembly and slag material absorption device - Google Patents

Abstract

The utility model discloses a fluid countercurrent state monitoring assembly and a slag material absorption device, which comprises a signal detection device, a gas communication pipeline, a sealing cover, a traction wiring, an upper barrel, a counterweight adjusting connecting line, a floating ball and a lower barrel; the signal detection device is fixedly arranged on the sealing cover and is further connected with the sealing cover; the gas communicating pipeline is fixed on the sealing cover, the gas phase communicating pipeline is communicated with the upper cylinder body, and the other end of the gas communicating pipeline is communicated with the detected pipeline; the upper end of the counterweight adjusting connecting line is fixed at the upper end of the upper barrel through a traction connecting line, and the lower end of the counterweight adjusting connecting line is provided with a floating ball; meanwhile, the lower end of the upper barrel is communicated with the lower barrel, the floating ball is suspended in the upper barrel and extends into the lower barrel, and the lower barrel is communicated with the detected pipeline. The method can solve the technical problems that the service life of equipment is shortened due to abnormal operation of the process flow caused by untimely detection of the countercurrent flow of the fluid.

Description

Fluid countercurrent state monitoring assembly and slag material absorption device

Technical Field

The utility model relates to an automated production technical field especially relates to a fluid countercurrent flow state monitoring subassembly and slag charge absorbing device.

Background

In the existing polysilicon production process (the process flow used for producing high-purity polysilicon), more or less chlorosilane-containing slurry is inevitably generated in the process of producing trichlorosilane, wherein the trichlorosilane contains impurities such as chlorosilane, industrial silicon powder and metal chloride which are not recovered, and the direct discharge of the impurities can cause serious environmental pollution. The prior art utilizes a weakly alkaline hydraulic ejector to neutralize the dried slurry residue. Wherein, the chlorosilane mainly comprises silicon chlorides such as silicon tetrachloride, trichlorosilane, dichlorosilane and the like. Hydro-jets refer to the use of water flow as a motive force to pump material within a system. The neutralization treatment refers to a control measure for achieving the standard of general solid waste discharge.

In realizing the utility model discloses the in-process, utility model people discover to have following problem among the prior art at least:

however, in the existing process, a large amount of particles are often contained in the ejector, so that agglomeration and blockage at the throat of the ejector are easily caused, alkaline water is accumulated at the part of the ejector, the corrosion of pipelines and equipment is aggravated, and the process safety is influenced. If the situation is not found timely, the fluid of the whole slurry blanking pipeline flows reversely to cause abnormal operation of the process flow, the overhauling treatment capacity is large, and the operation cost is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a fluid countercurrent flow state monitoring subassembly and slag charge absorbing device can solve because the fluid detects the technical problem that the process flow operation that leads to when untimely against current is unusual, equipment life reduces. The fluid countercurrent detection refers to detecting whether a fluid countercurrent phenomenon occurs in a pipeline.

In order to achieve the above object, an embodiment of the present invention provides a fluid countercurrent state monitoring assembly, which includes a signal detection device, a gas communication pipeline, a sealing cover, a traction wire, an upper cylinder, a counterweight adjustment wire, a floating ball and a lower cylinder; the signal detection device is fixedly arranged on the sealing cover and is further connected with the sealing cover; the gas communicating pipeline is fixed on the sealing cover, the gas phase communicating pipeline is communicated with the upper cylinder body, and the other end of the gas communicating pipeline is communicated with the detected pipeline; the upper end of the counterweight adjusting connecting line is fixed at the upper end of the upper barrel through a traction connecting line, and the lower end of the counterweight adjusting connecting line is provided with a floating ball; meanwhile, the lower end of the upper barrel is communicated with the lower barrel, the floating ball is suspended in the upper barrel and extends into the lower barrel, and the lower barrel is communicated with the detected pipeline.

Optionally, the signal detection device is a tension detector or a power on/off signal device.

Optionally, the other end of the gas communication pipeline is communicated with the detected pipeline through a flexible wire or a hard wire.

Optionally, the gas communication line is connected with the upper cylinder body through a flange connection, a threaded connection or a quick coupling.

Optionally, the floating ball limiting block is arranged at a position where the upper barrel is communicated with the lower barrel, and a part of the floating ball extending into the lower barrel is opposite to the floating ball limiting block and used for limiting the movement of the floating ball in the horizontal direction.

Optionally, the device further comprises a reset body arranged on the side wall of the lower cylinder body and used for resetting the liquid emptying floating ball in the lower cylinder body after the fluid flows reversely.

Optionally, the restoring body is connected with the side wall of the lower cylinder body by a flange, a thread or a quick joint.

In addition, according to the embodiment of the utility model, a slag absorption device is provided, which comprises the fluid countercurrent state monitoring assembly, a middle buffer tank, a buffer tank discharge valve, a lower discharge valve, a production water inlet and a hydraulic ejector in any one of the above embodiments;

wherein, a discharge pipeline at the lower end of the middle buffer tank is sequentially provided with a buffer tank discharge valve, a fluid countercurrent detection assembly and a lower discharge valve; the lower port of the discharge pipeline is connected with a hydraulic ejector, and the hydraulic ejector utilizes the connected production water inlet to eject mixed liquid.

Optionally, the lower port of the discharge pipe is connected with a hydrajet, and the hydrajet ejects the mixed liquid with the connected production water inlet, comprising:

the top connector of the hydraulic ejector is connected with the lower part of the lower discharge valve, the left connector of the hydraulic ejector is connected with the production water inlet, and the mixed liquid outlet on the right side of the hydraulic ejector ejects mixed liquid.

In addition, according to the embodiment of the utility model provides a slag charge absorbs method, include:

slag containing chlorosilane and solids enters an intermediate buffer tank, is absorbed and taken away by a hydraulic ejector after being discharged under the control of a buffer tank discharging valve, a fluid countercurrent detection assembly and a lower discharging valve in sequence, and is sent to a downstream unit;

wherein, if the fluid countercurrent detection component indicates a preset fluid countercurrent signal, the lower discharge valve is automatically closed.

Optionally, if the fluid reverse flow detection assembly indicates a predetermined fluid reverse flow signal, the lower discharge valve will be automatically closed, including:

the gas is linked together the pipeline and is linked together with the discharge pipe, and when liquid entered the lower barrel, the floater was because of receiving the influence automatic rising of buoyancy, and signal detection device's signal loses after counter weight adjustment connecting wire and traction connection lost the action of gravity, indicates that predetermined fluid is the signal against the current, closes discharge valve down.

An embodiment in the above-mentioned utility model has following advantage or beneficial effect: the utility model discloses increase the fluid and flow the state monitoring subassembly against the current at slag charge absorbing device's unloading pipeline, can in time detect the fluid and flow the condition against the current, in time through control signal's detection, the automatic dry pipeline of protection is not soaked by the moisture by the equipment section, reduces because the acidic material that chlorosilane and moisture reaction formed to the corruption of steel pipeline. Under the abnormal condition, the influence range of the fluid countercurrent can be controlled due to timely control, the workload of maintenance is reduced, and the time is saved.

Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.

Drawings

The accompanying drawings are included to provide a better understanding of the present invention and are not intended to constitute an undue limitation on the invention. Wherein:

fig. 1 is a schematic structural view of a fluid counterflow condition monitoring assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a slag absorption device according to an embodiment of the present invention;

fig. 3 is a schematic flow diagram of slag absorption according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

At least one embodiment of the utility model provides a fluid is state monitoring subassembly against current, as shown in fig. 1, fluid is state monitoring subassembly against current includes signal detection device 1, gaseous phase communicating pipe 2, sealed lid 3, pulls wiring 4, goes up barrel 5, counter weight adjustment line 6, floater 9 and lower barrel 10.

Wherein, the signal detection device 1 is fixedly arranged on the sealing cover 3 and is further connected with the sealing cover 3. The gas communicating pipeline 2 is fixed on the sealing cover 3, the gas phase communicating pipeline 2 is communicated with the upper barrel body 5, and the other end of the gas phase communicating pipeline 2 is communicated with the detected pipeline. The upper end of the counterweight adjusting connecting line 6 is fixed at the upper end of the upper barrel 5 through the traction connecting line 4, and the lower end of the counterweight adjusting connecting line 6 is provided with a floating ball 9. Meanwhile, the lower end of the upper barrel 5 is communicated with the lower barrel 10, the floating ball 9 is suspended in the upper barrel 5 and extends into the lower barrel 10, and the lower barrel 10 is communicated with the detected pipeline.

Preferably, the signal detection device 1 is a tension detector or an on/off signal device. The other end of the gas communication pipeline 2 is communicated with the detected pipeline through a flexible wire or a hard wire. The gas communication pipeline 2 is connected with the upper cylinder 5 through flange connection, threaded connection or quick joint.

Another embodiment of the utility model provides a fluid is state monitoring subassembly against current, as shown in fig. 1, fluid is state monitoring subassembly against current includes signal detection device 1, gaseous phase communicating pipe 2, sealed lid 3, pulls wiring 4, goes up barrel 5, counter weight adjustment line 6, floater 9, floater stopper 8 and lower barrel 10.

Wherein, the signal detection device 1 is fixedly arranged on the sealing cover 3 and is further connected with the sealing cover 3. The gas communicating pipeline 2 is fixed on the sealing cover 3, the gas phase communicating pipeline 2 is communicated with the upper barrel body 5, and the other end of the gas phase communicating pipeline 2 is communicated with the detected pipeline. The upper end of the counterweight adjusting connecting line 6 is fixed at the upper end of the upper barrel 5 through the traction connecting line 4, and the lower end of the counterweight adjusting connecting line 6 is provided with a floating ball 9. Meanwhile, the lower end of the upper barrel 5 is communicated with the lower barrel 10, the floating ball 9 is suspended in the upper barrel 5 and extends into the lower barrel 10, and the lower barrel 10 is communicated with the detected pipeline. A floating ball limiting block 8 is arranged at the position where the upper barrel 5 is communicated with the lower barrel 10, and the part of the floating ball 9 extending into the lower barrel 10 is opposite to the floating ball limiting block 8 and used for limiting the movement of the floating ball 9 in the horizontal direction.

The utility model discloses a still another embodiment provides a fluid countercurrent flow state monitoring subassembly, as shown in fig. 1, fluid countercurrent flow state monitoring subassembly includes signal detection device 1, gaseous phase communicating pipe line 2, sealed lid 3, pulls wiring 4, goes up barrel 5, counter weight adjustment line 6, floater 9, lower barrel 10 and reset body.

Wherein, the signal detection device 1 is fixedly arranged on the sealing cover 3 and is further connected with the sealing cover 3. The gas communicating pipeline 2 is fixed on the sealing cover 3, the gas phase communicating pipeline 2 is communicated with the upper barrel body 5, and the other end of the gas phase communicating pipeline 2 is communicated with the detected pipeline. The upper end of the counterweight adjusting connecting line 6 is fixed at the upper end of the upper barrel 5 through the traction connecting line 4, and the lower end of the counterweight adjusting connecting line 6 is provided with a floating ball 9. Meanwhile, the lower end of the upper barrel 5 is communicated with the lower barrel 10, and the floating ball 9 is suspended in the upper barrel 5 and extends into the lower barrel 10. The side wall of the lower cylinder body 10 is provided with a restoring body which is used for restoring the liquid emptying floating ball 9 in the lower cylinder body 10 after the fluid flows reversely. The other side wall of the lower cylinder 10 is communicated with the pipeline to be detected.

Preferably, the sidewall of the lower cylinder 10 is connected to the reset body and the pipeline to be tested by flange connection, screw connection or quick coupling, and the connection mode can be selected according to actual field requirements. For example: the reset body can drain and reset, and the reset body is connected with a valve externally connected to the side wall of the lower cylinder body 10 to perform the drainage inspection.

Another embodiment of the utility model provides a fluid is state monitoring subassembly against current, as shown in fig. 1, fluid is state monitoring subassembly against current includes signal detection device 1, gaseous phase communicating pipe 2, sealed lid 3, pulls wiring 4, goes up barrel 5, counter weight adjustment line 6, flange joint 7, floater stopper 8, floater 9 and lower barrel 10.

Wherein, the signal detection device 1 is fixedly arranged on the sealing cover 3 and is further connected with the sealing cover 3. Preferably, the signal detection device 1 may be a tension detector, and may also perform detection through a turn-on/turn-off signal, that is, the technique may be selected according to the actual sensitivity requirement.

The gas communicating pipeline 2 is fixed on the sealing cover 3, and the gas communicating pipeline 2 is communicated with the upper barrel 5. Meanwhile, in order to avoid the material polluting the environment from leaking to the atmosphere, the other end of the gas-phase communicating pipe 2 is communicated with the detected pipe (for example, the detected pipe is a discharge pipeline between the buffer tank discharge valve 13 and the lower discharge valve 15 in fig. 2), that is, the opening of the detected pipe is communicated with the interface of the gas-phase communicating pipe 2, so that the gas-phase pressure balance is maintained, and the detection sensitivity is improved. Preferably, the other end of the gas phase communicating pipe 2 is connected to the detected pipeline by a flexible wire or a hard wire, and the flexible wire or the hard wire can be selected according to the liquid density, the corrosion condition, the process state and other factors.

It is worth mentioning that the gas phase communicating pipe 2 can be connected with the upper cylinder 5 by flange connection, screw connection or quick joint connection according to actual needs.

The upper end of the counterweight adjusting connecting line 6 is fixed at the upper end of the upper barrel 5 through the traction connecting line 4, and the lower end of the counterweight adjusting connecting line 6 is provided with a floating ball 9. Meanwhile, the lower end of the upper barrel 5 is communicated with the lower barrel 10, and the floating ball 9 is suspended in the upper barrel 5 and extends into the lower barrel 10. A floating ball limiting block 8 is arranged at the position where the upper barrel 5 is communicated with the lower barrel 10, and the part of the floating ball 9 extending into the lower barrel 10 is opposite to the floating ball limiting block 8 and used for limiting the movement of the floating ball 9 in the horizontal direction, so that the moving position of the floating ball 9 is ensured, and the detection stability is ensured. That is to say, gaseous phase communicating pipe 2 is with being detected the pipeline intercommunication, and when liquid entered into lower barrel 10, floater 9 was because receiving the influence of buoyancy automatic rising, receives the restriction of floater stopper 8 simultaneously, and floater 9 can only the upward movement. The signal (for example, a tension signal) of the signal detection device 1 is lost after the counterweight adjusting connecting line 6 and the traction connecting line 4 lose the action of gravity, so that the occurrence of fluid countercurrent is indicated, the action of a valve is controlled (for example, the lower discharge valve 15 is closed in fig. 2), and the purpose of quickly cutting off abnormal fluid countercurrent protection pipeline equipment is achieved.

In addition, a reset body is arranged on the side wall of the lower cylinder body 10, and the reset body resets the liquid emptying floating ball 9 in the lower cylinder body 10 after the fluid counter flows. The restoring body 7 is connected with the side wall of the lower cylinder 10 by a flange connection 7. The other side wall of the lower cylinder 10 is communicated with the pipeline to be detected through a flange connection 7.

Preferably, the design has the drainage access hole, can conveniently observe the floater state, the inside liquid of exhaust device.

It is worth to be noted that the counterweight adjusting connecting line 6 and the floating ball 9 can be selected according to the liquid density monitored by actual needs, and the counterweight adjusting connecting line is matched with the detection liquid through different counterweights to detect the 'fluid countercurrent' state under various conditions, so that the purpose of universal detection is achieved, and the detection application is wide.

It is worth explaining, fluid countercurrent flow state monitoring subassembly can cooperate the lower discharge valve 15 of any model (lower discharge valve 15 can be pneumatic trip valve, also can be the automatic cutout valve of solenoid valve etc.), just can realize the function that fluid countercurrent flow detected, controlled and reported to the police. The floating ball in the fluid countercurrent monitoring device is used for detecting buoyancy to judge whether water flows upwards to a detected pipeline or not, and further judge whether the automatic control valve of the lower discharge valve 15 is automatically controlled to be opened or closed or not, so that prompt is timely given to field operation.

At least one embodiment of the utility model provides a slag absorption device, as shown in fig. 2, slag absorption device includes middle buffer tank 12, buffer tank unloading valve 13, fluid countercurrent detection subassembly 14, lower discharge valve 15, production water entry 16 and hydraulic jet 17.

Wherein, a buffer tank blanking valve 13, a fluid countercurrent detection component 14 and a lower discharging valve 15 are sequentially arranged on the discharging pipeline at the lower end of the middle buffer tank 12. The lower end of the discharge pipe is connected to a hydro jet 17, and the hydro jet 17 ejects the mixed liquid with the connected process water inlet 16.

Preferably, slag 11 containing chlorosilane and solids exists in the intermediate buffer tank 12, and a buffer tank discharge valve 13, a fluid countercurrent detection assembly 14 and a lower discharge valve 15 are sequentially installed on a discharge pipeline at the lower end of the intermediate buffer tank 12. And, the hydraulic ejector 17 adopts the standard component, and there are three interfaces and take the shape of tee joints. The top connection is connected, e.g. flanged, to the lower part of the lower discharge valve 15. The left interface is connected with a production water inlet 16 in a flange mode, and a mixed liquid outlet 18 on the right side of the hydraulic ejector 17 ejects mixed liquid. That is, at the top and left side of the hydraejector 17, as a fluid source, there are provided an absorbed fluid outlet (inlet portion of the lower discharge valve 15), an absorption liquid inlet (inlet portion of the process water inlet 16), and a mixed liquid outlet (outlet portion of the mixed liquid outlet 18).

In addition, a manual valve is added on one side of the fluid backflow detecting assembly 14, and when a backflow condition occurs, liquid is drained through the manual valve and the position of the floating ball is restored, so that an accidental backflow condition is avoided.

As shown in fig. 3, the process of slag absorption based on the slag absorption device includes:

the slag 11 containing chlorosilane and solids enters an intermediate buffer tank 12 and is absorbed and carried away by a hydraulic ejector 17 after passing through a buffer tank blanking valve 13, a fluid countercurrent detection assembly 14 and a lower blanking valve 15 in sequence. Wherein, the power source of the hydraulic ejector 17 is provided for the production water inlet 16, and the mixed materials are sent to the downstream unit for harmless treatment through the treated mixed liquid outlet 18. The discharging of the slag 11 containing chlorosilane and solids is controlled by a buffer tank discharging valve 13 and a lower discharging valve 15.

In the above process, the fluid backflow detecting assembly 14 detects the pipeline backflow state, and once the fluid backflow situation occurs (i.e. a fluid backflow signal is indicated), the lower discharging valve 15 is automatically closed, the affected range is controlled below the lower discharging valve 15, and it is ensured that the position above the lower discharging valve 15 is always in a dry state.

To sum up, the embodiment of the utility model provides a fluid is state monitoring subassembly and slag charge absorbing device against current can solve the problem that the fluid caused against the current in the polycrystalline silicon production waste liquid recovery processing process. The valve is driven to be closed immediately by timely feeding back the counter-flow state of the fluid, so that the liquid cannot rise into the pipeline and the equipment. That is to say, through the utility model discloses taking place to block up when low reaches hydraulic ejector, when having liquid to go up the pipeline on the contrary, the pressure balance that keeps through gaseous phase communicating pipe line will be broken, and liquid level will be with intraductal liquid level height in the device. Under the action of buoyancy, the floating ball 9 floats upwards, and the traction line and the connecting line can be changed from a tight state to a loose state. The signal detection device 1 can reduce the detection value under normal operation in a loose connecting line state, so as to give an interlocking signal, and the lower discharge valve 15 is switched from an open state to a closed state through peripheral indication or valve interlocking control, so that fluid countercurrent liquid can be prevented from entering a discharge pipeline and equipment in time, the problem of fluid countercurrent blockage is controlled in a minimum range, the loss is reduced, and the maintenance time is shortened. Additionally, the utility model discloses an assembly and device installation are simple, the matching is convenient.

The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A fluid counterflow condition monitoring assembly, comprising: the device comprises a signal detection device, a gas communication pipeline, a sealing cover, a traction wiring, an upper barrel, a counterweight adjusting connecting line, a floating ball and a lower barrel;

the signal detection device is fixedly arranged on the sealing cover and is further connected with the sealing cover; the gas communicating pipeline is fixed on the sealing cover, the gas phase communicating pipeline is communicated with the upper cylinder body, and the other end of the gas communicating pipeline is communicated with the detected pipeline; the upper end of the counterweight adjusting connecting line is fixed at the upper end of the upper barrel through a traction connecting line, and the lower end of the counterweight adjusting connecting line is provided with a floating ball; meanwhile, the lower end of the upper barrel is communicated with the lower barrel, the floating ball is suspended in the upper barrel and extends into the lower barrel, and the lower barrel is communicated with the detected pipeline.

2. The fluid counterflow condition monitoring assembly of claim 1, comprising:

the signal detection device is a tension detector or a communication and stop electric signal device.

3. The fluid counterflow condition monitoring assembly of claim 1, comprising:

the other end of the air communication pipeline is communicated with the detected pipeline through a flexible wire or a hard wire.

4. The fluid counterflow condition monitoring assembly of claim 1, comprising:

the gas communication pipeline is connected with the upper cylinder body through flange connection, threaded connection or quick joint.

5. The assembly of claim 1, further comprising a float stopper disposed at a position where the upper cylinder communicates with the lower cylinder, and a portion of the float extending into the lower cylinder is opposite to the float stopper for limiting a horizontal movement of the float.

6. The assembly of claim 1, further comprising a reset member disposed on the sidewall of the lower barrel for resetting the liquid-draining float in the lower barrel after the fluid is reversed.

7. The fluid counterflow condition monitoring assembly of claim 6, comprising:

the restoring body is connected with the side wall of the lower cylinder body through a flange, a thread or a quick joint.

8. A slag absorption plant comprising a fluid counterflow condition monitoring assembly as in any of claims 1-7, an intermediate surge tank, a surge tank discharge valve, a lower discharge valve, a process water inlet, and a hydraulic ejector;

wherein, a discharge pipeline at the lower end of the middle buffer tank is sequentially provided with a buffer tank discharge valve, a fluid countercurrent detection assembly and a lower discharge valve; the lower port of the discharge pipeline is connected with a hydraulic ejector, and the hydraulic ejector utilizes the connected production water inlet to eject mixed liquid.

9. The slag absorption apparatus according to claim 8, wherein the lower port of the discharge pipe is connected to a hydro jet, and the hydro jet ejects the mixed liquid using a connected process water inlet, comprising:

the top connector of the hydraulic ejector is connected with the lower part of the lower discharge valve, the left connector of the hydraulic ejector is connected with the production water inlet, and the mixed liquid outlet on the right side of the hydraulic ejector ejects mixed liquid.

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