Full-automatic medicament filling sledge

Abstract

The utility model provides a full-automatic medicament filling sledge, and relates to the technical field of petroleum drilling. The full-automatic medicament filling sledge comprises a medicament storage tank (1), a filling pump (2) and a PLC (programmable logic controller) (3), and an inlet of the filling pump (2) is communicated with an outlet of the medicament storage tank (1); an outlet of the filling pump (2) is communicated with a wellhead gas conveying pipeline system (4); a temperature sensor (5) is arranged in the wellhead gas transmission pipeline system (4); the temperature sensor (5) is in communication connection with the PLC (3); and the PLC (3) is also in signal connection with the filling pump (2). The full-automatic filling device can realize full-automatic filling, does not need manual operation, and reduces the workload of staff.

Description

Technical Field

[0001] The utility model relates to the technical field of oil drilling, in particular to a full-automatic medicine filling skid. Background Art

[0002] The temperature of the natural gas wellhead pipeline will drop after pressure reduction and throttling. In order to prevent the pipeline from being blocked by ice due to excessively low temperature, antifreeze needs to be added to the pipeline. The addition of antifreeze is generally done through a chemical filling skid.

[0003] Conventional reagent filling skids require manual on-site start of the filling pump after measuring the temperature to inject antifreeze into the gas pipeline. When the medium temperature of the gas pipeline is higher than a certain value, manual on-site stop of the filling pump. In addition, when the gas production temperature of the well station is stable, the reagent filling skid will no longer be needed and needs to be moved to other well stations for use, and the filling skid needs to be re-powered. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provides a fully automatic medicine filling skid, thereby solving the technical problem of low automation of the medicine filling skid.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A fully automatic medicine filling skid, including a medicine storage tank, a filling pump, and a PLC controller, wherein:

[0007] The inlet of the charging pump is connected to the outlet of the medicine storage tank; the outlet of the charging pump is connected to the wellhead gas pipeline system;

[0008] A temperature sensor is provided in the wellhead gas transmission pipeline system; the temperature sensor is communicatively connected with the PLC controller;

[0009] The PLC controller is also connected to the charging pump signal.

[0010] Optionally or preferably, the medicine storage tank is provided with a remote liquid level gauge; the remote liquid level gauge is connected to a liquid level warning alarm signal; the liquid level warning alarm is connected to a PLC controller signal.

[0011] Optionally or preferably, the upper portion of the medicine storage tank is connected to a liquid inlet pipe; the lower portion of the medicine storage tank is connected to a liquid outlet pipe; an air valve is provided at the top of the medicine storage tank; and a sewage pipe is connected to the bottom of the medicine storage tank.

[0012] Optionally or preferably, the inlet of the filling pump is connected to the outlet of the medicine storage tank through a liquid outlet pipe; and a filter is provided on the liquid outlet pipe near the inlet of the filling pump.

[0013] Optionally or preferably, it further comprises a reflux pipe; one end of the reflux pipe is connected to the outlet of the charging pump, and the other end is connected to the inlet of the charging pump; a valve is provided on the reflux pipe;

[0014] It also includes a pressure relief pipe, one end of which is connected to the outlet of the filling pump, and the other end is connected to the inlet of the filling pump; a pressure relief valve is provided on the pressure relief pipe.

[0015] Optionally or preferably, the outlet of the filling pump is connected to the wellhead gas pipeline system through an output pipe; an accumulator and a pressure gauge are also installed on the output pipe; the accumulator is used to stabilize the output pressure of the filling skid.

[0016] Optionally or preferably, the outlet of the filling pump is connected to the wellhead gas pipeline system through an output pipe; the output pipe is also connected to a detection port, which can discharge to detect the quality of the medicine in the pipe.

[0017] Based on the above technical solution, the utility model provides a fully automatic medicine filling skid, which can realize fully automatic filling without manual operation and reduce the workload of employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Description of the accompanying drawings:

[0021] 1-pharmaceutical storage tank, 2-filling pump, 3-PLC controller, 4-wellhead gas pipeline system, 5-temperature sensor, 6-remote liquid level gauge, 7-liquid level warning alarm, 8-filter, 9-reflux pipe, 10-pressure relief pipe, 11-accumulator, 12-detection port, 13-pressure gauge, 101-liquid inlet pipe, 102-liquid outlet pipe, 103-gas valve, 104-drain pipe, 201-output pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0023] In a preferred embodiment:

[0024] This embodiment provides a fully automatic medicine filling skid, such as Figure 1 As shown,

[0025] It includes a medicine storage tank 1, a filling pump 2, and a PLC controller 3, wherein:

[0026] The inlet of the charging pump 2 is connected to the outlet of the medicine storage tank 1; the outlet of the charging pump 2 is connected to the wellhead gas pipeline system 4;

[0027] The wellhead gas pipeline system 4 is provided with a temperature sensor 5; the temperature sensor 5 is communicatively connected with the PLC controller 3;

[0028] The PLC controller 3 is also connected to the filling pump 2 by signal.

[0029] Furthermore, in the present embodiment, a remote liquid level gauge 6 is provided on the medicine storage tank 1 ; the remote liquid level gauge 6 is connected to a liquid level warning alarm 7 by signal; and the liquid level warning alarm 7 is connected to a PLC controller 3 by signal.

[0030] Furthermore, in this embodiment, the upper portion of the medicine storage tank 1 is connected to a liquid inlet pipe 101; the lower portion of the medicine storage tank 1 is connected to a liquid outlet pipe 102; an air valve 103 is provided at the top of the medicine storage tank 1; and a sewage pipe 104 is connected to the bottom of the medicine storage tank 1.

[0031] Furthermore, in this embodiment, the inlet of the charging pump 2 is connected to the outlet of the medicine storage tank 1 through the liquid outlet pipe 102 ; the liquid outlet pipe 102 is provided with a filter 8 near the inlet of the charging pump 2 .

[0032] Furthermore, in this embodiment, a reflux pipe 9 is further included; one end of the reflux pipe 9 is connected to the outlet of the charging pump 2, and the other end is connected to the inlet of the charging pump 2; a valve is provided on the reflux pipe 9;

[0033] It also includes a pressure relief pipe 10 , one end of which is connected to the outlet of the filling pump 2 , and the other end of which is connected to the inlet of the filling pump 2 ; a pressure relief valve is provided on the pressure relief pipe 10 .

[0034] Furthermore, in this embodiment, the outlet of the filling pump 2 is connected to the wellhead gas pipeline system 4 through the output pipe 201; an accumulator 11 and a pressure gauge 13 are also installed on the output pipe 201; the accumulator 11 is used to stabilize the output pressure of the filling skid.

[0035] The working principle of this embodiment is:

[0036] When the temperature sensor 5 detects that the temperature in the wellhead gas pipeline system 4 is lower than the first set value, the filling pump 2 is started to inject the antifreeze stored in the chemical storage tank 1 into the wellhead gas pipeline system 4; when the temperature of the wellhead gas pipeline system 4 is higher than the second set value, the filling pump 2 is stopped, and the injection of antifreeze into the wellhead gas pipeline system 4 is stopped; when the liquid level in the chemical storage tank 1 is lower than the third set value, the PLC controller 3 prohibits starting the filling pump.

[0037] The fully automatic medicine filling skid provided in this embodiment has the following advantages:

[0038] (1) It can realize full automatic filling without manual operation, reducing the workload of employees.

[0039] (2) Control the filling amount according to the medium temperature of the gas pipeline to save antifreeze.

[0040] (3) Better applicability, automatic filling can be achieved even at well stations without control systems.

[0041] (4) Smaller on-site construction workload and fewer cables. Automatic filling can be achieved by connecting a power cable and a gas pipeline temperature transmitter to the control cabinet.

[0042] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A fully automatic medicine filling skid, characterized by: It comprises a medicine storage tank (1), a filling pump (2), and a PLC controller (3), wherein: The inlet of the charging pump (2) is connected to the outlet of the medicine storage tank (1); the outlet of the charging pump (2) is connected to the wellhead gas pipeline system (4); The wellhead gas transmission pipeline system (4) is provided with a temperature sensor (5); the temperature sensor (5) is communicatively connected with the PLC controller (3); The PLC controller (3) is also connected to the filling pump (2) by signal.

2. The fully automatic medicine filling skid according to claim 1, characterized in that: The medicine storage tank (1) is provided with a remote liquid level meter (6); the remote liquid level meter (6) is connected to a liquid level warning alarm (7) by signal; the liquid level warning alarm (7) is connected to a PLC controller (3) by signal.

3. The fully automatic medicine filling skid according to claim 1, characterized in that: The upper part of the medicine storage tank (1) is connected to a liquid inlet pipe (101); the lower part of the medicine storage tank (1) is connected to a liquid outlet pipe (102); the top of the medicine storage tank (1) is provided with an air valve (103); and the bottom of the medicine storage tank (1) is connected to a sewage discharge pipe (104).

4. The fully automatic medicine filling skid according to claim 1, characterized in that: The inlet of the filling pump (2) is connected to the outlet of the medicine storage tank (1) through a liquid outlet pipe (102); a filter (8) is provided on the liquid outlet pipe (102) near the inlet of the filling pump (2).

5. The fully automatic medicine filling skid according to claim 1 is characterized by: It also includes a return pipe (9); one end of the return pipe (9) is connected to the outlet of the filling pump (2), and the other end is connected to the inlet of the filling pump (2); the return pipe (9) is provided with a valve; It also comprises a pressure relief pipe (10), one end of which is connected to the outlet of the filling pump (2), and the other end of which is connected to the inlet of the filling pump (2); a pressure relief valve is provided on the pressure relief pipe (10).

6. The fully automatic medicine filling skid according to claim 1, characterized in that: The outlet of the filling pump (2) is connected to the wellhead gas pipeline system (4) via an output pipe (201); an accumulator (11) and a pressure gauge (13) are also installed on the output pipe (201); the accumulator (11) is used to stabilize the output pressure of the filling skid.

7. The fully automatic medicine filling skid according to claim 1, characterized in that: The outlet of the filling pump (2) is connected to the wellhead gas pipeline system (4) via an output pipe (201); the output pipe (201) is also connected to a detection port (12) capable of discharging gas to detect the quality of the medicine in the pipe.

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