Automatic safety protection device of drilling pump

Abstract

The utility model relates to the technical field of petroleum mechanical equipment, and discloses an automatic safety protection device for a drilling pump, which comprises a base and a slurry pump fixedly arranged on the base, and the output end of the slurry pump is fixedly communicated with an output pipeline; a pressure sensor and a flow sensor are sequentially and fixedly mounted at the position, close to the output end of the slurry pump, in the output pipeline; the input end of the slurry pump fixedly communicates with an input pipeline, and a slurry pool is arranged on one side of the slurry pump. According to the automatic safety protection device for the drilling pump, the working state of the mud pump is automatically monitored and adjusted, manual real-time intervention is not needed, the labor intensity of operators is reduced, meanwhile, the reaction speed is increased, the accident risk caused by human reaction delay is reduced, and the safety of the drilling pump is improved. The protection effect of the device is better, and the actual use requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of petroleum machinery and equipment technology, specifically to an automatic safety protection device for drilling pumps. Background Technology

[0002] With the exploration and development of mineral resources such as oil and natural gas, the safety and efficiency of drilling engineering are receiving increasing attention. As a key piece of equipment in drilling operations, the safe and stable operation of drilling pumps is crucial to the entire drilling process.

[0003] In existing drilling technologies, situations where excessive mud pump output pressure or continued operation without mud can cause pumps to move back and forth in a vacuum require operators to monitor the pump's operating status in real time. If an abnormality is detected, the pump must be manually stopped or parameters adjusted immediately. This undoubtedly increases the operator's workload and may delay the response time, making it impossible to prevent accidents in a timely manner. Therefore, we have proposed an automatic safety protection device for drilling pumps to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic safety protection device for drilling pumps. This solves the problem in existing drilling technologies where, in cases where the mud pump outputs excessive liquid pressure or continues to operate without mud, causing the pump to move back and forth in an empty state, operators need to monitor the pump's operating status in real time. If an abnormality is detected, the operator must immediately manually stop the pump or adjust the parameters. This undoubtedly increases the operator's burden and may delay the reaction time, making it impossible to prevent accidents in a timely manner.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic safety protection device for drilling pumps, including a base and a mud pump fixedly installed on the base, wherein the output end of the mud pump is fixedly connected to an output pipe;

[0006] A pressure sensor and a flow sensor are fixedly installed sequentially inside the output pipe near the output end of the mud pump.

[0007] The input end of the mud pump is fixedly connected to an input pipe, and a mud tank is provided on one side of the mud pump.

[0008] The other end of the input pipe is fixed to and connected to the bottom of the mud pit;

[0009] One end of the output pipe is fixedly connected to a pressure relief pipe, and the other end of the pressure relief pipe is fixedly connected to the top of the outer side of the mud pit.

[0010] The pressure relief pipe is equipped with a pressure relief valve inside;

[0011] A programmable PLC controller is installed on one side of the mud pit.

[0012] Preferably, a drain valve is installed in the output end of the mud pump, and a suction valve is installed in the input end of the mud pump.

[0013] Preferably, an installation plate is fixed to one side of the mud tank, and a delivery pump is fixed to the upper surface of the installation plate. The input end of the delivery pump is connected to the liquid supply system, and a discharge pipe is fixed to the output end of the delivery pump. One end of the discharge pipe extends into the mud tank and is located at the top of the mud tank. A support plate is fixed to the top of the mud tank, and a liquid level float sensor is installed on the support plate. The liquid level float sensor is located inside the mud tank.

[0014] Preferably, a connecting plate is fixed to the surface of the mud pit near the discharge pipe, and the connecting plate is fixedly connected to the discharge pipe. The connecting plate is used to support and reinforce the discharge pipe.

[0015] Preferably, the programmable PLC controller is fixed to the surface of the mounting plate, and a protective cover is provided on the outside of the programmable PLC controller, the protective cover and the mounting plate being fixedly connected.

[0016] Preferably, an alarm is fixedly installed on the top of the protective cover.

[0017] Beneficial effects

[0018] This utility model provides an automatic safety protection device for drilling pumps. Compared with the prior art, it has the following advantages:

[0019] Beneficial effects:

[0020] This automatic safety protection device for drilling pumps enables automatic monitoring and adjustment of the working status of mud pumps without the need for real-time manual intervention. This reduces the labor intensity of operators, improves response speed, and reduces the risk of accidents caused by human delays. The device provides better protection and meets actual usage requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a rear view of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the protective cover structure of this utility model.

[0024] In the diagram: 101, base; 102, mud pump; 103, output pipe; 104, pressure sensor; 105, flow sensor; 106, pressure relief pipe; 107, pressure relief valve; 108, input pipe; 109, mud tank; 110, mounting plate; 111, transfer pump; 112, programmable PLC controller; 113, discharge pipe; 114, connecting plate; 115, protective cover; 116, alarm; 117, support plate; 118, liquid level float sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 As shown:

[0027] The drilling pump automatic safety protection device includes a base 101 and a mud pump 102 fixedly installed on the base 101.

[0028] In this implementation plan: To solve the technical problems existing in the prior art, such as the situation disclosed in the background art above, "In the existing drilling technology, if the mud pump 102 outputs excessive liquid pressure or continues to work without mud, it will cause the pump to move back and forth in the empty space. The operator needs to monitor the working status of the pump in real time. Once an abnormality is found, the pump must be stopped manually or the parameters adjusted immediately. This undoubtedly increases the burden on the operator, and the reaction time may be delayed, making it impossible to prevent accidents in time." In combination with the actual use, this problem is obviously a real and difficult problem to solve.

[0029] Furthermore:

[0030] like Figures 1-3 As shown:

[0031] Based on the above: the output end of the mud pump 102 is fixedly connected to the output pipe 103;

[0032] A pressure sensor 104 and a flow sensor 105 are sequentially fixedly installed inside the output pipe 103 near the output end of the mud pump 102.

[0033] The input end of the mud pump 102 is fixedly connected to the input pipe 108. A mud tank 109 is provided on one side of the mud pump 102. A drain valve is installed in the output end of the mud pump 102. A suction valve is installed in the input end of the mud pump 102.

[0034] The other end of the input pipe 108 is fixed to and connected to the bottom of the mud tank 109;

[0035] One end of the output pipe 103 is fixedly connected to the pressure relief pipe 106, and the other end of the pressure relief pipe 106 is fixedly connected to the top of the outer side of the mud tank 109.

[0036] A pressure relief valve 107 is installed inside the pressure relief pipe 106;

[0037] A programmable PLC controller 112 is installed on one side of the mud tank 109.

[0038] In this implementation plan: When the drilling pump automatic safety protection device is in use, when the mud pump 102 is running, the mud inside the mud tank 109 is pumped into the mud pump 102 through the input pipe 108. At this time, the suction valve at the input end of the mud pump 102 is closed, the discharge valve at the output end of the mud pump 102 is opened, and the mud is discharged into the output pipe 103.

[0039] The pressure sensor 104 and flow sensor 105 in the output pipe 103 monitor the output pressure and flow of the mud pump 102 in real time and transmit the data to the programmable PLC controller 112.

[0040] The programmable PLC controller 112 receives data from the pressure sensor 104 and the flow sensor 105, processes the data through its built-in program, and determines whether the mud pump 102 is operating normally.

[0041] When the flow rate is detected to exceed the preset safety range, the programmable PLC controller 112 will automatically control the mud pump 102 to stop running, so as to prevent the mud pump 102 from continuing to work without mud, which would cause the pump to run dry.

[0042] When the pressure sensor 104 detects that the internal pressure of the output pipe 103 is too high, the programmable PLC controller 112 will instruct the pressure relief valve 107 to open, and discharge the excess mud into the mud tank 109 through the pressure relief pipe 106, thereby reducing the pressure.

[0043] This solution enables automatic monitoring and adjustment of the working status of the mud pump 102 without the need for real-time manual intervention, reducing the labor intensity of operators and improving the response speed. It also reduces the risk of accidents caused by human delays in response, resulting in better protection and meeting actual usage requirements.

[0044] Furthermore;

[0045] In an optional embodiment, a mounting plate 110 is fixed to one side of the mud tank 109, and a delivery pump 111 is fixed to the upper surface of the mounting plate 110. The input end of the delivery pump 111 is connected to the liquid supply system, and a discharge pipe 113 is fixed to the output end of the delivery pump 111. One end of the discharge pipe 113 extends into the mud tank 109 and is located at the top of the mud tank 109. A support plate 117 is fixed to the top of the mud tank 109, and a liquid level float sensor 118 is installed on the support plate 117. The liquid level float sensor 118 is located inside the mud tank 109.

[0046] A connecting plate 114 is fixed on the surface of the mud tank 109 near the discharge pipe 113. The connecting plate 114 is fixedly connected to the discharge pipe 113 and is used to support and reinforce the discharge pipe 113.

[0047] In this embodiment: a liquid level float sensor 118 is installed inside the mud tank 109, and the support plate 117 is used to connect the liquid level float sensor 118. The liquid level float sensor 118 monitors the mud level inside the mud tank 109 in real time. When the liquid level rises, the liquid level float sensor 118 floats up, the contact in the reed switch of the liquid level float sensor 118 opens, and the sensor outputs a signal to the programmable PLC controller 112. When the liquid level falls, the liquid level float sensor 118 sinks, the contact in the reed switch of the liquid level float sensor 118 closes, and the sensor outputs a signal to the programmable PLC controller 112. The programmable PLC controller 112 receives the liquid level signal. The signal from the float sensor 118 is analyzed to determine the current liquid level in the mud tank 109. Based on the liquid level information, the programmable PLC controller 112 sends a command to the transfer pump 111 to adjust its operating status. If the liquid level in the mud tank 109 is lower than the set value, the programmable PLC controller 112 commands the transfer pump 111 to start, increasing the mud input. If the liquid level in the mud tank 109 is higher than the set value, the programmable PLC controller 112 commands the transfer pump to stop or slow down, reducing the mud input. This ensures that the mud in the mud tank 109 is fully loaded, preventing the mud pump 102 from not pumping in any mud and affecting its operation.

[0048] Furthermore;

[0049] In an optional embodiment, the programmable PLC controller 112 is fixed to the surface of the mounting plate 110, and a protective cover 115 is provided on the outside of the programmable PLC controller 112, with the protective cover 115 and the mounting plate 110 fixedly connected.

[0050] In this embodiment, a protective cover 115 is provided on the outside of the programmable PLC controller 112. The protective cover 115 can wrap the programmable PLC controller 112, thereby protecting the programmable PLC controller 112.

[0051] Furthermore;

[0052] In an optional embodiment, an alarm 116 is fixedly mounted on the top of the protective cover 115.

[0053] In this embodiment: During this process, when an abnormal situation occurs, such as abnormal pressure or flow, the programmable PLC controller 112 will trigger the alarm 116 to issue an alarm and notify the operator to take timely measures.

[0054] It should be noted that all electrical equipment involved in this product is powered by an external power source. The solution also includes an electrical control cabinet, which is mounted on the mounting plate 110. During use, each piece of electrical equipment can be started and operated separately through the electrical control cabinet. The power connection method of each piece of electrical equipment is a mature existing technology and is well known to those skilled in the art, so it will not be described in detail here.

[0055] The working principle and usage process of this utility model are as follows: When the drilling pump 102 is in operation, and slurry from the mud pit 109 is pumped into the mud pump 102 through the input pipe 108, the suction valve at the input end of the mud pump 102 closes, and the discharge valve at the output end of the mud pump 102 opens, discharging into the output pipe 103. The pressure sensor 104 and flow sensor 105 in the output pipe 103 monitor the output pressure and flow rate of the mud pump 102 in real time and transmit the data to the programmable PLC controller 112. The programmable PLC controller 112 receives the data from the pressure sensor 104 and flow sensor 105, processes the data through its built-in program, and determines the operating status of the mud pump 102. Is it normal? When the flow rate exceeds the preset safety range, the programmable PLC controller 112 will automatically control the mud pump 102 to stop running, preventing the mud pump 102 from continuing to work without mud, which would cause the pump to run dry. When the pressure sensor 104 detects that the internal pressure of the output pipe 103 is too high, the programmable PLC controller 112 will instruct the pressure relief valve 107 to open, and discharge the excess mud into the mud tank 109 through the pressure relief pipe 106, thereby reducing the pressure. This solution realizes the automatic monitoring and adjustment of the working status of the mud pump 102 without the need for real-time manual intervention, reducing the labor intensity of operators, improving the response speed, and reducing the risk of accidents caused by human delay. This device has a better protection effect and meets the actual use requirements.

[0056] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An automatic safety protection device for a drilling pump, comprising a base (101) and a mud pump (102) fixedly mounted on the base (101), characterized in that, The output end of the mud pump (102) is fixedly connected to an output pipe (103); A pressure sensor (104) and a flow sensor (105) are fixedly installed in sequence inside the output pipe (103) near the output end of the mud pump (102); The input end of the mud pump (102) is fixedly connected to an input pipe (108), and a mud tank (109) is provided on one side of the mud pump (102). The other end of the input pipe (108) is fixed to and connected to the bottom of the mud tank (109); One end of the output pipe (103) is fixedly connected to a pressure relief pipe (106), and the other end of the pressure relief pipe (106) is fixedly connected to the top of the outer side of the mud tank (109). A pressure relief valve (107) is installed inside the pressure relief pipe (106); A programmable PLC controller (112) is installed on one side of the mud tank (109).

2. The automatic safety protection device for drilling pumps according to claim 1, characterized in that: A drain valve is installed in the output end of the mud pump (102), and a suction valve is installed in the input end of the mud pump (102).

3. The automatic safety protection device for drilling pumps according to claim 2, characterized in that: A mounting plate (110) is fixed to one side of the mud tank (109). A delivery pump (111) is fixed to the upper surface of the mounting plate (110). The input end of the delivery pump (111) is connected to the liquid supply system. A discharge pipe (113) is fixed to the output end of the delivery pump (111). One end of the discharge pipe (113) extends into the mud tank (109) and is located at the top of the mud tank (109). A support plate (117) is fixed to the top of the mud tank (109). A liquid level float sensor (118) is installed on the support plate (117). The liquid level float sensor (118) is located inside the mud tank (109).

4. The automatic safety protection device for drilling pumps according to claim 3, characterized in that: A connecting plate (114) is fixed on the surface of the mud tank (109) near the discharge pipe (113). The connecting plate (114) and the discharge pipe (113) are fixedly connected. The connecting plate (114) is used to support and reinforce the discharge pipe (113).

5. The automatic safety protection device for drilling pumps according to claim 3, characterized in that: The programmable PLC controller (112) is fixed on the surface of the mounting plate (110), and a protective cover (115) is provided on the outside of the programmable PLC controller (112). The protective cover (115) and the mounting plate (110) are fixedly connected.

6. The automatic safety protection device for drilling pumps according to claim 5, characterized in that: An alarm (116) is fixedly installed on the top of the protective cover (115).

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