CN212774245U - Novel medicament filling sledge - Google Patents

Abstract

The utility model discloses a novel medicament filling sledge, install medicament storage tank, dosing pump, pressure monitoring's conveying line and flow distributor on the sledge seat including the integration. Compare in present traditional medicament filling device, for adapting to present shale gas low-cost roll development and constantly move the demand, skid-mounted structure on a steel structural framework is installed to all pipe-line system sets up one-level or multistage return line system, has effectively guaranteed the safety of flow path when playing the regulation and control effect. The device is additionally provided with low liquid level alarm pump-stopping interlocking, so that the safety performance of the device is improved; meanwhile, the standard ferrule joint replaces the traditional non-standard movable joint to serve as a system connecting piece, so that the material and the manufacturing cost are saved, the installation is convenient, the processing and manufacturing period is saved, and the device is compact in structure; and the filling sledge can fill one or more users at the same time, so that the occupied area is saved, and the modular skid-mounted efficient construction mode with short development requirement period and investment reduction of the current oil and gas field is adapted.

Description

Novel medicament filling sledge

Technical Field

The utility model belongs to natural gas development field, concretely relates to novel medicament filling sledge.

Background

With the globalization of energy requirements and the rapid development of scientific technology, the petroleum and natural gas industry has entered a new round of continuous construction peak at present, especially the discovery of large and super-large oil and gas resources and the acceleration of development pace, so that the scale of engineering construction projects is larger and larger, the engineering content is more and more complex, and the quality requirement is higher and higher. The construction mode of the shale gas ground engineering suitable for the national conditions of China is provided, and the skid-mounted and modularized device which is suitable for the shale gas rolling development, has low cost and strong interchangeability and can be quickly reassembled on site is formed. The construction of the oil and gas field by using the conventional field assembly construction technology is obviously not suitable for a new development situation, and the construction requirements of low-cost rolling development, strong interchangeability and short field reinstallation requirement time of the shale gas can be met only by continuously improving, promoting and researching a new oil and gas field construction mode, shortening the construction period and reducing the engineering investment. Therefore, remote fast engineering construction modes such as skid-mounted station construction, modular factory construction and the like are comprehensively implemented, and skid-mounted and modular factory construction modes are implemented on a system with relatively independent functions, so that the field installation workload is greatly reduced, the construction period is shortened, the engineering investment is reduced, and the construction quality is ensured. Meanwhile, the skid-mounted structure is easy to integrally move, and is very suitable for the frequent moving requirement that the pressure of the shale gas well is quickly attenuated, the high-pressure skid is replaced by the low-pressure skid in the later period, and the high-pressure skid is moved to a newly opened well head.

As shown in fig. 1, the existing chemical filling system for natural gas wellhead, platform, gas gathering station, etc. includes: the device comprises a raw material storage area 1, a metering injection area 2 and a injection head area 3, the process flow is relatively complex, the occupied area is large, meanwhile, a steel structure base is not arranged, equipment and pipelines are supported by a site cement foundation and can only be constructed on site, the device cannot be integrally moved after being constructed, and the construction period is longer than that of skid-mounted remote construction; as shown in fig. 2, the pipeline system in the device is connected by using a non-standard forging loose joint, the structure is heavy, and due to more threaded connection forms, if the device is frequently moved, the threaded connection is easy to loosen in the hoisting and transportation processes, so that the leakage of the threaded connection is caused, the safety risk is increased, and the workload of the field tightening of the threaded connection is increased; the traditional set of filling system (single pump) mostly corresponds to one filling point (single pump and single point filling), the filling efficiency is low, and the investment is high; the traditional filling system is low in safety configuration, does not have a low liquid level alarm and pump stop control system, needs to be equipped with an on-duty person to pay attention to the liquid level condition of a medicament storage tank, and is low in device safety.

In a word, the existing natural gas medicament filling system has relatively complex process flow, large floor area, large processing and manufacturing difficulty and long construction period, can be constructed only on site, and is seriously unsuitable for skid-mounted efficient construction mode with short development requirement period and investment reduction of oil and gas fields.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model aims at providing a novel medicament filling sledge integrates the skid-mounted with the filling device to promote the operation security, the stability of filling sledge, promote filling efficiency.

The utility model discloses a following technical scheme:

a novel medicament filling sledge comprises a medicament storage tank, a medicament feeding pump, a pressure monitoring conveying pipeline and a flow distributor which are integrally installed on a sledge seat; the medicament storage tank is provided with a medicament feeding port and a breather valve and is used for receiving and storing medicament; the inlet of the dosing pump is connected with the outlet of the medicament storage tank, and the outlet of the dosing pump is connected with the flow distributor through the conveying pipeline; the conveying pipeline is provided with a one-stage or multi-stage return pipeline system which is connected with the medicament storage tank in a return mode, so that part of liquid in the conveying pipeline can flow back to the medicament storage tank through the return pipeline system; the flow distributor has more than one user point that can be filled simultaneously.

In a specific embodiment of the present invention, the return line system is two-stage, including: a first return pipeline system which is arranged on the conveying pipeline and can be communicated under certain pressure is communicated with the medicament storage tank, and a second return pipeline system which is arranged on the conveying pipeline and is provided with a control valve at the downstream of the first return pipeline system is communicated with the first return pipeline system.

In a particular embodiment of the present invention, the medicament storage tank is provided with a liquid level transmitter, the liquid level transmitter and the dosing pump are provided with a low liquid level alarm and a pump stop interlock therebetween.

In one embodiment of the present invention, the filling sleds are connected to the valves by standard ferrules.

In a specific embodiment of the utility model, add medicine pump export and set up the filter that has the apron, can inspect through the apron the play liquid condition of filter.

In a specific embodiment of the present invention, an energy accumulator is further installed on the delivery pipeline.

In a particular embodiment of the invention, the flow distributor has two user points for filling with medicament.

Since the technical scheme is used, the utility model discloses following beneficial effect has:

1) compared with the conventional medicament filling device, in order to meet the requirements of low-cost rolling development and continuous relocation of shale gas at present, all pipeline systems are arranged on a skid-mounted structure on a steel structure frame, so that the field construction period is greatly saved, the manpower and machines invested in the field are greatly reduced, the cost and expense are effectively reduced, and meanwhile, the whole system is integrated on a steel structure base, so that the skid-mounted integral relocation is facilitated;

2) the one-stage or multi-stage return pipeline system is arranged, so that the safety of the flow path is effectively ensured while the regulation and control function is realized;

3) the system can be used for filling one or more users at the same time, so that the occupied area is saved, and the system is suitable for a modularized and skid-mounted efficient construction mode which has short development demand period and low investment at present;

4) the device is additionally provided with low liquid level alarm pump-stopping interlocking, so that the safety performance of the device is improved;

5) the standard ferrule joint replaces the traditional non-standard movable joint to serve as a system connecting piece, so that the material and the manufacturing cost are saved, the installation is convenient, the processing and manufacturing period is saved, and the device is compact in structure;

drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the implementation will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic block diagram of the components of a prior art medication dispensing system;

FIG. 2 is a non-standard forging loose joint for connecting pipelines of a conventional medicament filling system;

fig. 3 is a top view of the novel medicament filling skid of the present invention;

fig. 4 is a front view of the novel medicament filling skid.

In the figure, 1-a medicine feeding port, 2-a medicine storage tank, 3-a medicine storage tank breather valve interface, 4-a medicine storage tank outlet ball valve, 5-a filter, 6-a liquid level transmitter, 7-a pump inlet pipeline, 8-a medicine feeding pump, 9-a first clamping sleeve tee joint, 10-a clamping sleeve type angle valve, 11-a detection port, 12-a second clamping sleeve tee joint, 13-a third clamping sleeve tee joint, 14-a first clamping sleeve type needle valve, 15-a clamping sleeve type safety valve, 16-a fourth clamping sleeve tee joint, 17-a first backflow system pipeline, 18-a control cabinet, 19-a breather valve, 20-an energy accumulator, 21-a pressure gauge, 22-a second clamping sleeve type needle valve, 23-a fifth clamping sleeve tee joint, 24-a sixth tee joint, 25-a clamping sleeve type check valve and 26-a flow distributor, 27-sledge base.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

Examples

As shown in fig. 3 to 4, a novel medicament filling skid comprises a medicament storage tank 2, a medicament filling pump 8, a pressure monitoring delivery pipeline and a flow distributor 26, which are integrally mounted on a skid base 27; the medicament storage tank 2 is provided with a medicament adding port 1 and a breather valve 19, the medicament storage tank 2 is used for receiving and storing medicament, the medicament is injected into the medicament storage tank 2 from the medicament adding port 1, and the breather valve 19 is used for ensuring the balance of the internal and external pressure in the tank and preventing external combustion media from entering the tank. The inlet of the dosing pump 8 is connected with the outlet of the medicament storage tank 2, and the outlet of the dosing pump 8 is connected 26 with the flow distributor through a conveying pipeline; a one-stage or multi-stage return pipeline system which is connected with the medicament storage tank 2 in a return way is arranged on the conveying pipeline, so that part of liquid in the conveying pipeline can return to the medicament storage tank 2 through the return pipeline system; the flow distributor 26 has more than one user point that can be filled simultaneously.

Compared with the existing natural gas medicament filling system, the embodiment integrates the originally separated raw material storage area, the metering filling area and the filling head area, optimizes the process flow and the equipment pipeline arrangement, and installs and integrates the whole filling system on a steel structure base. The one-stage or multi-stage return pipeline system is arranged, so that the medicine can selectively return to the medicine storage tank 2 when overpressure or flow is overlarge, the regulation and control effects are achieved, and meanwhile, the safety of a flow path is effectively guaranteed. The flow distributor 26 can be used for filling more than one user at the same time, so that the investment and the occupied area of the device on site are greatly saved, and the modular skid-mounted efficient construction mode which is short in development requirement period and low in investment is very suitable for the current oil-gas field.

In one embodiment, the return line system is two-stage, comprising a first return line system connectable to the medicament reservoir at a pressure arranged on the delivery line, and a second return line system with a control valve arranged downstream of the first return line system on the delivery line, communicating with the first return line system. The first return line system 17 is provided with a safety valve, and when the pressure of the line system exceeds a set pressure, the safety valve jumps and the drug flows back to the drug reservoir 2. The second return pipeline system is communicated with the first return pipeline system through a branch pipeline arranged on the conveying pipeline, part of flow of the conveying pipeline is shunted and then flows back to the medicament storage tank, and the purpose of adjusting the pressure of the system under the condition of not losing the medicament is achieved by adjusting and controlling a valve on the second return pipeline system.

In one embodiment, the medicament storage tank 2 is provided with a liquid level transmitter 6, and a low liquid level alarm and pump stop interlock is arranged between the liquid level transmitter 6 and the medicament feeding pump 8, so that the system safety is improved, and the possibility that the motor is burnt out due to idling of a pump motor when the liquid level is low due to unattended operation is avoided.

In one embodiment, the lines and valves in the filling skid are connected by standard ferrules. The standard clamping sleeve is adopted to replace the original non-standard forge piece joint connection mode, compared with a threaded connection, the standard clamping sleeve is more reliable, the leakage of a connector caused by multiple times of moving, transporting and operating vibration is avoided, compared with a welding connection construction, the standard clamping sleeve is simpler and quicker, the construction period is saved, compared with a flange connection, the material is saved, the installation is more convenient, and compared with the three connection modes, the clamping sleeve connection mode has lower cost on materials and construction;

in one embodiment, the outlet of the medicine-adding pump is provided with a filter with a cover plate, and the liquid outlet condition of the filter can be checked through the cover plate. Before the whole conveying pipeline forms a passage, the cover plate of the filter is taken down, if liquid overflows, the cover plate is closed, and the downstream pipeline is communicated, so that the normal liquid outlet condition of the front end pipeline and the filter is determined.

In one embodiment, an accumulator 20 is also mounted on the delivery line. The accumulator 20 is used to eliminate the pulses at the outlet of the dosing pump 8.

In one particular embodiment, the flow distributor 26 has two user points to fill the medicament. By adopting a novel two-point filling flow distributor which is a patent product applied by the applicant before, a set of filling sleds (single pump) can be used for filling medicaments to two user points simultaneously, so that the investment and the occupied area of the device on site are greatly saved, and the modular skid-mounted high-efficiency construction mode which is short in development requirement period and low in investment is very suitable for the current oil-gas field.

In one embodiment, the implementation is as follows:

as shown in fig. 3 to 4, start: before operation, all connection parts are checked to be connected according to design requirements, abnormal conditions do not exist, all inspection and testing are completed, all valves, equipment and openings are ensured to be in a closed state, and the system completes strength and tightness tests. Opening the medicine feeding port 1, injecting the medicine into the medicine storage tank 2 from the medicine feeding port 1, ensuring the balance of internal and external pressure in the tank and preventing external combustion media from entering the tank through a breather valve 19 connected with a breather valve interface 3 of the medicine storage tank, opening an upper end cover plate of a ball valve 4 of an outlet of the medicine storage tank and a filter 5 after the medicine feeding amount meets the design requirement, closing the upper end cover plate of the filter 5 when the medicine overflows from the end of the filter 5, opening a ferrule type angle valve 10, a first ferrule type needle valve 14 and a second ferrule type needle valve 22, simultaneously starting a medicine feeding pump 8 through a control cabinet 18, dividing the medicine into two paths through a first ferrule type tee joint 9, leading one path to a detection port 11 through the ferrule type angle valve 10, closing the ferrule type angle valve 10 when the medicine flows out from the detection port 11, leading the other path to the downstream, dividing into two paths through a second tee joint 12, leading the other path to a ferrule type safety valve 15, when the pressure of the pipeline system exceeds the set pressure, the cutting sleeve type safety valve 15 jumps, the medicament flows back to the medicament storage tank 2 through the fourth cutting sleeve tee joint 16 and the first return system pipeline 17, the pressure of the pipeline system returns to normal to achieve the aim of protecting the pipeline system, the other path goes to the downstream, is divided into two paths through the third cutting sleeve tee joint 13, the other path goes to the first cutting sleeve type needle valve 14, flows back to the medicament storage tank 2 through the fourth cutting sleeve tee joint 16 and the first return system pipeline 17, the first cutting sleeve type needle valve 14 is gradually closed at the moment, the system pressure gradually rises, when the working pressure rises to 30%, 60% and 90% of the working pressure, the pressure is respectively stabilized for 15 minutes, the conditions of error abnormality and leakage at each position are checked, the other path goes to the downstream, is divided into two paths through the fifth cutting sleeve tee joint 23, the other path goes to the energy accumulator 20, the pulse at the outlet of the medicament feeding pump, the pressure of the outlet pipeline system of the dosing pump 8 is displayed by dividing the pressure into two paths through a sixth cutting sleeve tee joint 24, one path is sent to a pressure gauge 21 through a second cutting sleeve type needle valve 22, the other path is sent to the downstream, the two-point dosing flow distributor 26 is sent to a user point needing to be dosed through a cutting sleeve type check valve 25, and after 90% of the working pressure of the system is stabilized, the flow distributor 26 is opened, and the medicament flows into the downstream user point.

Flow control: when the two user points need to be filled with the medicaments at the same time, the total amount of the medicaments required to be filled at the two user points is set through the medicament filling pump 8, and the medicament filling amount required at each user point is designed through the flow distributor 26.

Interlocking: when the liquid level in the medicine storage tank 2 is lower than the designed value, a signal is transmitted to the control cabinet 18 by the liquid level transmitter 6 and is logically controlled by the control cabinet 18, the operation of the medicine adding pump 8 is stopped, and an alarm is given.

Parking: the operation of the dosing pump 8 is stopped, and then the flow distributor 26, the second ferrule type needle valve 22 and the medicament storage tank outlet ball valve 4 are closed in sequence.

Relocation: the medicament filling system is arranged on the sledge seat 27, the sledge seat 27 only needs to be hoisted when the medicament filling system is integrally disassembled, moved and reassembled, the internal system is not disassembled and assembled, the implementation is convenient, and the installation labor and time are saved.

The embodiment includes but is not limited to the application of filling antifreeze, corrosion inhibitor, defoaming agent, foaming agent and the like into the pipeline system of natural gas well head, platform, gas gathering station and the like.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. A novel medicament filling sledge which is characterized in that: comprises a medicament storage tank, a medicament feeding pump, a pressure monitoring conveying pipeline and a flow distributor which are integrally arranged on a sledge seat; the medicament storage tank is provided with a medicament feeding port and a breather valve and is used for receiving and storing medicament; the inlet of the dosing pump is connected with the outlet of the medicament storage tank, and the outlet of the dosing pump is connected with the flow distributor through the conveying pipeline; the conveying pipeline is provided with a one-stage or multi-stage return pipeline system which is connected with the medicament storage tank in a return mode, so that part of liquid in the conveying pipeline can flow back to the medicament storage tank through the return pipeline system; the flow distributor has more than one user point that can be filled simultaneously.

2. The novel medication injection skid of claim 1, wherein: the return line system is two-stage, including: a first return pipeline system which is arranged on the conveying pipeline and can be communicated under certain pressure is communicated with the medicament storage tank, and a second return pipeline system which is arranged on the conveying pipeline and is provided with a control valve at the downstream of the first return pipeline system is communicated with the first return pipeline system.

3. The novel medication injection skid of claim 1, wherein: the medicament storage tank is provided with a liquid level transmitter, and a low liquid level alarm and pump stop interlock is matched between the liquid level transmitter and the dosing pump.

4. The novel medication injection skid of claim 1, wherein: and each pipeline and the valve in the filling sledge are connected by a standard cutting sleeve.

5. The novel medication injection skid of claim 1, wherein: the outlet of the medicine adding pump is provided with a filter with a cover plate, and the liquid outlet condition of the filter can be checked through the cover plate.

6. The novel medication injection skid of claim 1, wherein: and an energy accumulator is also arranged on the conveying pipeline.

7. The novel medication injection skid of claim 1, wherein: the flow distributor has two user points for filling the medicament.

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