Regenerated saline water monitoring device for water softener of oil field steam-injection boiler

Abstract

The utility model discloses a regenerated brine monitoring device for a water softener of an oil field steam-injection boiler, which comprises a salt pond body, a water level monitoring sensor is arranged on the inner side wall of the salt pond body, a water inlet pipe is arranged at the upper end of the salt pond body, and a water outlet pipe is arranged at the lower end of the salt pond body; outside the salt pond body, a second electric drain valve is arranged on the water inlet pipe, and a first electric drain valve is arranged on the water outlet pipe; in the salt pond body, the end of the water inlet pipe is connected with an active anti-blocking filter head. According to the utility model, saline water can be automatically added, and the added water can be filtered; through the arrangement of the active anti-blocking filter head, active anti-blocking is carried out on the filter head in real time during filtering, and smooth flowing of liquid in the whole filtering process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field steam injection boilers, in particular to a monitoring device for regenerated brine of a water softener of an oil field steam injection boiler. Background Art

[0002] Oilfield steam injection boiler water treatment equipment is a special equipment, which mainly includes two large systems: water softener and deaerator. There are many steps in the process of oilfield steam injection boiler water treatment, including automatic control of the regenerated brine process, automatic configuration of brine concentration and automatic addition of water to the salt pool. When the brine is automatically added, the corresponding regenerated brine monitoring device is required.

[0003] However, in actual use, the commonly used regenerated brine monitoring device is not convenient to automatically add brine after detecting the water level drop. Moreover, during the adding process, it is not convenient to filter the added water as it contains many impurities. For this reason, we propose a regenerated brine monitoring device for oilfield steam injection boiler softener to solve the above problems.

[0004] Announcement No.: CN106745512B, discloses a zero-discharge device for regenerated wastewater of an oilfield steam injection boiler softener and a regeneration method thereof, wherein a brine tank and a brine pump are sequentially arranged on the brine inlet pipe between the regenerated brine storage tank and the brine switch valve; a brine flowmeter is fixedly installed on the brine inlet pipe.

[0005] The brine tank of the prior art has neither an automatic water adding function nor the ability to filter out foreign particles.

[0006] Announcement No.: CN207153274U, discloses a precise multi-filtration salt dissolving pool, including: the pool body is rectangular, with a base at the bottom, the pool body is divided into a crystal salt storage area, a soluble salt settling area, and a multi-stage filtration area, the upper part of the pool body is provided with a water inlet pipe in the soluble salt tank of the soluble salt settling area from right to left, a triangular top support is provided on the top, a ladder with an inclination angle of 45° is provided on the left end, and a water outlet valve is provided at the right end, i.e., the bottom of the multi-stage filtration area, a recoil valve is provided on the upper part of the water outlet valve, the recoil valve is connected to the recoil pipe, and the recoil pipe passes through the multi-stage filtration area to the soluble salt settling area. It is suitable for dissolving raw salt and removing impurities in oilfield steam injection boilers.

[0007] The filter screen of the prior art will be clogged by a large amount of deposited impurity particles, and the aggregated impurities attached to the filter screen cannot be discharged through the sewage valve.

[0008] Announcement No.: CN107324543B, discloses a novel integrated feedwater treatment device for oilfield steam injection boiler, wherein the salt pool includes: a salt pump outlet valve, a salt pump inlet valve, an integrated salt pool, a circulation / cleaning valve, and a salt pump; wherein the inlet of the salt pump is connected to the integrated salt pool through the salt pump inlet valve, and the outlet is connected to the integrated salt pool through the circulation / cleaning valve and connected to external equipment through the salt pump outlet valve. The salt pool realizes the salt pool water addition function, salt circulation function, salt intake function, salt pool cleaning function, and salt pool sewage discharge function through the opening and closing control of the valve.

[0009] This prior art is unable to intercept foreign particles, which may cause clogging problems in the next-level equipment.

[0010] In short, the technical solutions of the above-disclosed technologies, the technical problems to be solved and the beneficial effects produced are all different from the present utility model. Regarding more technical features, technical problems to be solved and the beneficial effects of the present utility model, there is no technical inspiration in the above-disclosed technical documents. Utility Model Content

[0011] In view of the above-mentioned defects in the prior art, the purpose of the utility model is to provide a regenerated brine monitoring device for an oilfield steam injection boiler softener, so as to solve the problem that the commonly used regenerated brine monitoring device proposed in the above-mentioned background technology is not convenient to automatically add brine after monitoring the water level drop during actual use, and it is not convenient to filter the added water during the adding process, as it contains a lot of impurities.

[0012] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0013] A monitoring device for regenerated brine of a water softener for a steam injection boiler in an oil field comprises a salt pool body, a water level monitoring sensor is arranged on the inner wall of the salt pool body, an inlet pipe is arranged at the upper end of the salt pool body, and an outlet pipe is arranged at the lower end of the salt pool body; outside the salt pool body, a second electric drain valve is arranged on the inlet pipe, and a first electric drain valve is arranged on the outlet pipe; inside the salt pool body, the end of the inlet pipe is connected to an active anti-blocking filter head.

[0014] Furthermore, the active anti-clogging filter head includes a water adding cylinder, a connecting cover, a cleaning mechanism, and a driving mechanism;

[0015] Specifically, the rear end of the water adding cylinder is connected to the water inlet pipe, the front end of the water adding cylinder is closed, and the lower end of the water adding cylinder is open;

[0016] Specifically, a filter screen is fixedly connected to the middle of the connection cover, and the connection cover is snap-connected to the lower opening of the water-filling cylinder, and the connection cover is fixed to the water-filling cylinder through a detachable locking structure, and a cylindrical inner cavity is formed after the connection cover and the water-filling cylinder are fixed;

[0017] Specifically, the cleaning mechanism is arranged inside the water adding cylinder, and the cleaning mechanism is used to scrape and clean the impurities attached to the inner surface of the filter screen. The driving mechanism is fixedly arranged on the outer wall of the water adding cylinder, and the driving mechanism is used to drive the cleaning mechanism.

[0018] Furthermore, the cleaning mechanism includes a movable column, a connecting column, and a cleaning brush;

[0019] Specifically, the connecting column is fixedly connected to the inner wall of the water filling cylinder;

[0020] Specifically, the movable column is located at the central axis of the cylindrical inner cavity, the movable column is rotatably connected to the connecting column, the front end of the movable column passes through the front end of the water filling cylinder, and is connected to the driving mechanism;

[0021] Specifically, the cleaning brush is fixedly connected to the movable column, at least two cleaning brushes are provided and are evenly distributed around the movable column, and the cleaning brush is fitted to the filter screen.

[0022] Further, the driving mechanism includes a motor;

[0023] Specifically, the motor is arranged at the upper end of the water adding cylinder, and the output end of the motor is transmission-connected to the front end of the movable column through a pulley and a connecting belt.

[0024] Furthermore, the water level monitoring sensor, the first electric drain valve, the second electric drain valve, and the motor are all connected to the controller and controlled by the controller.

[0025] Further, the detachable locking structure includes a fixing column, a connecting block and a fixing cap;

[0026] Specifically, the fixing column is fixedly connected to the left and right ends of the water adding cylinder, and the outer surface of the fixing column is provided with a thread;

[0027] The connection block is fixedly connected to the left and right ends of the connection cover; a through hole is arranged in the middle of the connection block;

[0028] Specifically, the lower end of the fixing column passes through the through hole of the connecting block, the fixing cap is threadedly connected to the lower end of the fixing column, and the fixing cap is fitted to the lower end of the connecting block.

[0029] Furthermore, a sealing ring is provided at the connection between the connection cover and the water filling cylinder.

[0030] Furthermore, a fixing frame is provided on the inner wall of the salt pool body, and the fixing frame is fixedly connected to the water inlet pipe.

[0031] Furthermore, the water inlet pipe is arranged at the upper left end of the salt pond body, and the water outlet pipe is arranged at the lower right end of the salt pond body.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] During actual use, the regenerated brine monitoring device for the softener of the steam injection boiler in the oil field detects that the water level has dropped through the water level monitoring sensor, and then automatically opens the second electric drain valve installed at the upper left end of the salt pool body through the controller to add water to the salt pool body. During the adding process, the impurities in the water can be filtered out through the setting of the filter. At the same time, during filtering, combined with the setting of the cleaning mechanism, the filter can be cleaned in real time to keep the filtering process of the filter running smoothly. In addition, combined with the setting of the fixing column, the connecting block and the fixing cap, the filter can be easily disassembled, cleaned and replaced to prevent the filter from being blocked and affecting the overall filtering effect.

[0034] 1. The utility model can automatically add salt water and filter the added water;

[0035] 2. The utility model is provided with a cleaning mechanism, which facilitates the real-time cleaning of the filter screen during filtration, thus ensuring smooth flow of liquid during the entire filtration process;

[0036] 3. The utility model facilitates the disassembly, cleaning and replacement of the filter screen by means of the setting of the fixing column, the connecting block and the fixing cap, thereby preventing the filter screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front view cross-sectional structural schematic diagram of a regenerated brine monitoring device for a water softener of an oil field steam injection boiler according to the utility model;

[0038] Figure 2 It is a front view cross-sectional structural diagram of the connection between the cleaning mechanism, the filter screen and the water adding cylinder in the utility model;

[0039] Figure 3 This utility model Figure 1 The enlarged structural diagram at A in the middle;

[0040] Figure 4 It is a side view structural diagram of the connection of the connection cover, the water adding cylinder, the fixing column and the connection block in the utility model;

[0041] Figure 5 It is a front view structural diagram of the water adding cylinder, the connecting cover and the filter screen in the utility model.

[0042] In the figure: 1. Salt pool body; 2. Water level monitoring sensor; 3. First electric drain valve; 4. Second electric drain valve; 5. Water filling cylinder; 6. Fixed bracket; 7. Motor; 8. Pulley; 9. Connecting belt; 10. Connecting cover; 11. Filter; 12. Cleaning mechanism; 13. Movable column; 14. Connecting column; 15. Cleaning brush; 16. Fixed column; 17. Connecting block; 18. Fixed cap. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] Embodiment 1:

[0045] See also Figures 1 to 5 The utility model provides a regenerated brine monitoring device for an oilfield steam injection boiler softener, comprising a salt pool body 1, a water level monitoring sensor 2 is arranged on the inner wall of the salt pool body 1, a water inlet pipe is arranged at the upper left end of the salt pool body 1, and a water outlet pipe is arranged at the lower right end of the salt pool body 1; outside the salt pool body 1, a second electric drain valve 4 is arranged on the water inlet pipe, and a first electric drain valve 3 is arranged on the water outlet pipe; inside the salt pool body 1, the end of the water inlet pipe is connected to an active anti-blocking filter head.

[0046] Furthermore, the active anti-clogging filter head includes a water adding cylinder 5, a connecting cover 10, a cleaning mechanism 12, and a driving mechanism.

[0047] The rear end of the water adding cylinder 5 is connected to the water inlet pipe, the front end of the water adding cylinder 5 is closed, and the lower end of the water adding cylinder 5 is open.

[0048] Among them, a filter screen 11 is fixedly connected to the middle part of the connecting cover 10, and the connecting cover 10 is snap-connected to the lower end opening of the water filling cylinder 5, and the connecting cover 10 is fixed to the water filling cylinder 5 through a detachable locking structure. After the connecting cover 10 is fixed to the water filling cylinder 5, a cylindrical inner cavity is formed, which is convenient for cleaning.

[0049] The cleaning mechanism 12 is disposed inside the water adding cylinder 5 , and is used to scrape and clean impurities attached to the inner surface of the filter screen 11 . The driving mechanism is fixedly disposed on the outer wall of the water adding cylinder 5 , and is used to drive the cleaning mechanism 12 .

[0050] Preferably, the cleaning mechanism 12 includes a movable column 13, a connecting column 14, and a cleaning brush 15. The connecting column 14 is fixedly connected to the inner wall of the water filling cylinder 5. The movable column 13 is located on the central axis of the cylindrical inner cavity. The movable column 13 is rotatably connected to the connecting column 14. The front end of the movable column 13 passes through the front end of the water filling cylinder 5 and is connected to the driving mechanism. The cleaning brush 15 is fixedly connected to the movable column 13. At least two cleaning brushes 15 are arranged and are evenly distributed around the movable column 13. The cleaning brush 15 is fitted to the filter 11.

[0051] Preferably, the driving mechanism includes a motor 7 , which is disposed at the upper end of the water adding cylinder 5 , and the output end of the motor 7 is transmission-connected to the front end of the movable column 13 via a pulley 8 and a connecting belt 9 .

[0052] Preferably, the detachable locking structure includes a fixing column 16, a connecting block 17 and a fixing cap 18, the fixing column 16 is fixedly connected to the left and right ends of the water filling cylinder 5, the connecting block 17 is fixedly connected to the left and right ends of the connecting cover 10, the outer surface of the fixing column 16 is provided with a thread, a through hole is provided in the middle of the connecting block 17, the lower end of the fixing column 16 passes through the through hole of the connecting block 17, the fixing cap 18 is threadedly connected to the lower end of the fixing column 16, and the fixing cap 18 is fitted with the lower end of the connecting block 17 to achieve limiting.

[0053] Specifically, a sealing ring is provided at the connection between the connection cover 10 and the water filling cylinder 5 to prevent leakage and splashing.

[0054] Specifically, a fixing frame 6 is provided on the inner wall of the salt pond body 1, and the fixing frame 6 is fixedly connected to the water inlet pipe to avoid pressure loss of the connection part between the water inlet pipe and the salt pond body 1 due to the water adding cylinder 5 and the liquid inside it.

[0055] Specifically, the water level monitoring sensor 2, the first electric drain valve 3, the second electric drain valve 4, and the motor 7 are all connected to the controller and controlled by the controller.

[0056] It should be noted that the controller is a prior art and can be a programmable control device such as MCU, PLC, industrial computer, etc.

[0057] Embodiment 2:

[0058] Based on Example 1, this example provides a method for using a regenerated brine monitoring device for a water softener of an oilfield steam injection boiler, which specifically includes the following steps:

[0059] S1. When using a monitoring device for regenerated brine of an oilfield steam injection boiler softener, if Figure 1 As shown, a water level monitoring sensor 2 is installed on the inner wall of the salt pond body 1. When the water level monitoring sensor 2 detects that the water level inside the salt pond body 1 drops, the signal is transmitted to the controller, and the second electric drain valve 4 is opened through the controller to make the water inlet pipe conductive and transport water to the water filling cylinder 5, so as to automatically add liquid to the salt pond body 1 to the water level line.

[0060] S2, such as Figure 2 and Figure 5As shown, the lower end of the water adding cylinder 5 is snap-connected with a connecting cover 10, a sealing ring is fitted between the water adding cylinder 5 and the connecting cover 10, and a filter screen 11 is provided in combination with the lower end of the connecting cover 10. The filter screen 11 is provided to facilitate filtering of the water added to the inside of the salt pool body 1;

[0061] At the same time, when filtering water, the motor 7 drives the movable column 13 to rotate inside the water adding cylinder 5 through the pulley 8 and the connecting belt 9, and the movable column 13 rotates between the connecting column 14, and the movable column 13 drives the cleaning brush 15 to rotate inside the water adding cylinder 5, and the cleaning brush 15 and the filter screen 11 are arranged in a close fit, so as to facilitate the cleaning of the filter screen 11, so that the particles in the liquid cannot condense and block the filter screen 11, thereby ensuring smooth flow during the entire filtering process;

[0062] S3, such as Figure 3 and Figure 4 As shown, after the brine is added, the particles are deposited on the filter screen 11, the power supply and the second electric drain valve 4 can be turned off, and the fixing cap 18 threadedly connected to the lower end of the fixing column 16 is rotated to disengage the fixing cap 18 from the fixing column 16, thereby loosening the limit between the connecting block 17 and the fixing column 16, and then pulling the connecting cover 10 downward, the connecting cover 10 drives the connecting block 17 to disengage from the fixing column 16, thereby facilitating the disassembly of the connecting cover 10 and the water adding cylinder 5, facilitating the full cleaning and replacement of the filter screen 11, and preventing the filter screen 11 from being used for a long time, and the particle agglomeration plate cannot be scraped off, resulting in blockage, which affects the actual filtering effect. The overall structural design is relatively simple and very convenient to use.

[0063] All components and connection methods of components not discussed in this application belong to the known technologies in this technical field and can be directly applied without further explanation.

[0064] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0065] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0066] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A monitoring device for regenerated brine of a water softener for a steam injection boiler in an oil field, comprising a salt pool body, characterized in that: A water level monitoring sensor is arranged on the inner wall of the salt pool body, a water inlet pipe is arranged at the upper end of the salt pool body, and a water outlet pipe is arranged at the lower end of the salt pool body; Outside the salt pool body, a second electric drain valve is provided on the water inlet pipe, and a first electric drain valve is provided on the water outlet pipe; In the salt pool body, the end of the water inlet pipe is connected to an active anti-blocking filter head.

2. The oilfield steam injection boiler water softener regenerated brine monitoring device according to claim 1, characterized in that: The active anti-blocking filter head includes a water adding cylinder, a connecting cover, a cleaning mechanism, and a driving mechanism; The rear end of the water adding cylinder is connected to the water inlet pipe, the front end of the water adding cylinder is closed, and the lower end of the water adding cylinder is open; The middle part of the connection cover is fixedly connected with a filter screen, and the connection cover is snap-connected to the lower end opening of the water-adding cylinder, and the connection cover is fixed to the water-adding cylinder through a detachable locking structure, and the connection cover and the water-adding cylinder are fixed to form a cylindrical inner cavity; The cleaning mechanism is arranged inside the water adding cylinder, and is used to scrape and clean the impurities attached to the inner surface of the filter screen. The driving mechanism is fixedly arranged on the outer wall of the water adding cylinder, and is used to drive the cleaning mechanism.

3. The oilfield steam injection boiler water softener regeneration brine monitoring device according to claim 2 is characterized in that: The cleaning mechanism includes a movable column, a connecting column, and a cleaning brush; The connecting column is fixedly connected to the inner wall of the water filling cylinder; The movable column is located at the central axis of the cylindrical inner cavity, the movable column is rotatably connected to the connecting column, the front end of the movable column passes through the front end of the water filling cylinder and is connected to the driving mechanism; The cleaning brush is fixedly connected to the movable column. At least two cleaning brushes are arranged and evenly distributed around the movable column. The cleaning brush is fitted to the filter screen.

4. The oilfield steam injection boiler water softener regeneration brine monitoring device according to claim 3 is characterized in that: The driving mechanism comprises a motor; The motor is arranged at the upper end of the water adding cylinder, and the output end of the motor is transmission-connected with the front end of the movable column through a pulley and a connecting belt.

5. The oilfield steam injection boiler water softener regeneration brine monitoring device according to claim 4, characterized in that: The water level monitoring sensor, the first electric drain valve, the second electric drain valve, and the motor are all connected to the controller and controlled by the controller.

6. The oilfield steam injection boiler water softener regeneration brine monitoring device according to claim 2, characterized in that: The detachable locking structure includes a fixing column, a connecting block and a fixing cap; The fixing column is fixedly connected to the left and right ends of the water adding cylinder, and the outer surface of the fixing column is provided with a thread; The connection block is fixedly connected to the left and right ends of the connection cover; a through hole is arranged in the middle of the connection block; The lower end of the fixing column passes through the through hole of the connecting block, the fixing cap is threadedly connected to the lower end of the fixing column, and the fixing cap is fitted to the lower end of the connecting block.

7. The oilfield steam injection boiler water softener regeneration brine monitoring device according to claim 2, characterized in that: A sealing ring is provided at the connection between the connection cover and the water filling cylinder.

8. The oilfield steam injection boiler water softener regeneration brine monitoring device according to claim 1, characterized in that: A fixing frame is arranged on the inner wall of the salt pool body, and the fixing frame is fixedly connected to the water inlet pipe.

9. The oilfield steam injection boiler water softener regeneration brine monitoring device according to any one of claims 1 to 8, characterized in that: The water inlet pipe is arranged at the upper left end of the salt pond body, and the water outlet pipe is arranged at the lower right end of the salt pond body.

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