Sodium ion exchanger for water supply treatment of oil field steam-injection boiler and steam-injection boiler

Abstract

The utility model discloses an oil field steam-injection boiler feed water treatment sodium ion exchanger and steam-injection boiler, including the exchange tank group, the exchange tank group is provided with at least one group, the exchange tank group includes at least one exchange tank, the top of the tank body of the exchange tank is provided with a raw water inlet, a negative pressure extraction opening and an exchange agent inlet, a softened water outlet is formed in the bottom of the tank body. When the exchange agent is filled, the air exhaust hose is firstly connected with the negative pressure air exhaust opening, the feeding hose is connected with the exchange agent adding opening, the negative pressure fan is used for continuously exhausting air from the negative pressure air exhaust opening, and air in the exchange tank can be exhausted from the air exhaust opening of the negative pressure fan along the air exhaust hose, so that a negative pressure vacuum state is formed in the exchange tank; the exchange agent particles can enter the exchange agent adding port from the material box along the feeding hose and fall into the exchange tank body conveniently and quickly, and the process can be completed automatically.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield water treatment technical field, concretely is a kind of oilfield steam injection boiler feed water treatment sodium ion exchanger and steam injection boiler. BACKGROUND

[0002] The core module of the oilfield steam injection boiler feed water treatment device is a sodium ion exchanger.

[0003] The sodium ion exchanger is used for softening (hardness removal) treatment of raw water, i.e., the process of removing calcium and magnesium ions in water. Since the ion exchanger inside is filled with 001X7 sodium type cation exchange resin (particle size range 0.315-1.25 mm), it is simply called a resin tank or a water softener.

[0004] The sodium ion exchanger uses a two-stage treatment method for water softening. The first-stage tank plays a major role, i.e., calcium and magnesium ions in raw water exchange with sodium ions in the pores on the surface of resin particles, a displacement reaction occurs, and calcium and magnesium ions in water are removed. The second-stage tank serves as an insurance function to prevent "hardness leakage". Therefore, the resin tank is usually divided into two groups, one group is in operation, and the other group is in "regeneration" standby, and they are operated alternately. "Regeneration" means using dilute brine (8-10%) to pass through the resin layer and displace the resin particles that have lost their exchange capacity, thereby restoring their water treatment capacity. The regeneration process mainly includes salt feeding and cleaning.

[0005] Publication No. CN217077070U discloses a sodium ion exchanger provided with a water distributor, which includes a liquid inlet main pipe, a liquid distribution cavity, a distribution pipe, a distribution branch pipe, distribution pipe spray holes, and distribution branch pipe spray holes. The liquid inlet main pipe is located at the central position of the water distributor, one end of the liquid inlet main pipe is connected to the water inlet main pipe at the upper part of the cylinder, the other end of the liquid inlet main pipe is connected to the liquid distribution cavity, the liquid distribution cavity is a cylindrical cavity, the top of the liquid distribution cavity is connected to the liquid inlet main pipe, the cylindrical side of the liquid distribution cavity is connected to the distribution pipes in a radial pattern, one end of the distribution pipe is connected to the liquid distribution cavity, the other end of the distribution pipe is sealed, and all adjacent distribution pipes are connected by distribution branch pipes between the farthest ends from the liquid distribution cavity, so that each distribution pipe is connected to each other.

[0006] The layer water distributor of the prior art has a multi-branch pipe structure and is connected by threads, which is prone to loosening, falling off, tilting, or clogging, resulting in uneven water inflow and causing impact pits on the surface of the resin layer, leading to disordered resin layers and affecting the regeneration effect, thereby reducing the amount of produced water.

[0007] CN106745512B discloses an oil field steam injection boiler softener regeneration wastewater zero discharge device and a regeneration method thereof. The oil field steam injection boiler softener regeneration wastewater zero discharge device comprises a first softening tank, a second softening tank, a sewage treatment station, a brine recovery tank, a brine regeneration device and a pure water tank. The oil field steam injection boiler softener regeneration wastewater zero discharge device and the regeneration method thereof can realize zero discharge of regenerated wastewater, and can use backwash drainage, primary positive washing water and secondary positive washing water as the water inlet of the softener, thereby avoiding waste of water resources.

[0008] The prior art cannot work continuously, and needs to stop production during regeneration.

[0009] CN217297380U discloses a sodium ion exchanger for treating high-hardness raw water, which comprises a first resin tank, a second resin tank, a rotor flowmeter, an electromagnetic valve assembly, a control box, a first salt tank and a second salt tank. The first salt tank and the second salt tank are connected with the first resin tank and the second resin tank through a salt water inlet pipeline. The rotor flowmeter is installed on the salt water inlet pipeline. Raw water enters the first resin tank, the second resin tank, the first salt tank and the second salt tank through a raw water inlet pipeline. Soft water produced by the first resin tank and the second resin tank enters a softened water tank through a soft water pipeline. The control box controls the salt inlet, cleaning and water production process through the electromagnetic valve assembly. Glass view mirrors are arranged on the first salt tank and the second salt tank.

[0010] The view mirror of the prior art is circular, and the observation area is small, which is not conducive to manual observation of the internal running state.

[0011] Meanwhile, the above document has the problem that the resin tank needs to be filled with resin manually, and manual climbing is needed for addition, which is labor-intensive.

[0012] In summary, the technical solutions, the technical problems to be solved and the beneficial effects of the above disclosed technologies are different from those of the present application. The above disclosed technology documents do not have technical inspiration for more technical features, technical problems to be solved and beneficial effects of the present application. Content of the utility model

[0013] In view of the above defects of the prior art, the purpose of the present application is to provide an oil field steam injection boiler feed water treatment sodium ion exchanger and a steam injection boiler.

[0014] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0015] The utility model discloses a kind of sodium ion exchangers for oilfield steam injection boiler feed water treatment, including exchange tank group, the exchange tank group is provided at least one group, the exchange tank group includes at least one exchange tank, the tank body top of the exchange tank is provided with raw water inlet, negative pressure air extraction port, exchange agent adding port, the tank body bottom is provided with softened water outlet.

[0016] Further, the tank body top end is provided with raw water inlet, negative pressure air extraction port, the tank body upper end side wall is provided with exchange agent adding port;The tank body bottom end is provided with softened water outlet;

[0017] Specifically, negative pressure control valve is arranged on the negative pressure air extraction port;Water distributor is arranged at the inside top end of the tank body, and the water distributor is connected with the raw water inlet;Water collector is arranged at the inside bottom end of the tank body, and the water collector is connected with the softened water outlet.

[0018] Further, the tank body bottom end side wall is provided with manhole, and the tank body side wall is embedded with vertical glass viewer between exchange agent adding port and manhole.

[0019] Further, the water distributor includes horn-shaped expansion pipe;

[0020] Specifically, the lower end outlet of the horn-shaped expansion pipe is fixedly connected with a shunt baffle, and the horn-shaped expansion pipe and the shunt baffle are connected by a thin rod.

[0021] Specifically, there is a water passing space between the shunt baffle and the lower end outlet of the horn-shaped expansion pipe.

[0022] Further, the water collector includes a single water collection cap;

[0023] Specifically, the single water collection cap includes a screen pipe, the lower end of the screen pipe is open, the upper end of the screen pipe is closed, the outer wall of the lower end of the screen pipe is provided with a connecting flange, and the inner wall of the screen pipe is provided with a reinforcing support framework.

[0024] Specifically, the softened water outlet is inserted into the tank body, and the mounting flange is connected to the outer wall of the port of the softened water outlet in the tank body, and the mounting flange and the bottom of the tank body have an assembly space.

[0025] Specifically, the connecting flange of the single water collection cap and the mounting flange are fixed by bolts and nuts.

[0026] Further, it also includes raw water tank, salt water tank and drainage tank.

[0027] Specifically, the raw water tank is communicated with a raw water pump, and the outlet of the raw water pump is communicated with the raw water inlet of the tank body through a liquid inlet pipeline.

[0028] Specifically, the drainage tank is communicated with a drainage main pipeline, and the drainage main pipeline is communicated with the softened water outlet of the tank body through a drainage branch pipeline.

[0029] Specifically, the tank bodies in the exchange tank group are connected in sequence to form a frontmost raw water inlet and a last softened water outlet.

[0030] Specifically, the brine tank is connected with a brine pump, the outlet of the brine pump is connected with a salt feeding main pipeline, and the salt feeding main pipeline is connected with the last softened water outlet through a salt feeding branch pipeline.

[0031] Specifically, the last softened water outlet is connected with a water supply branch pipeline, and the water supply branch pipeline is connected with a water supply main pipeline.

[0032] Specifically, the liquid feeding pipeline, the water drainage main pipeline, the water drainage branch pipeline, the salt feeding main pipeline, the salt feeding branch pipeline, the water supply branch pipeline and the water supply main pipeline are all provided with valves.

[0033] Further, each group of the exchange tank group comprises two tank bodies, i.e., a primary tank and a secondary tank.

[0034] Specifically, the softened water outlet of the primary tank is connected with the raw water inlet of the secondary tank.

[0035] Specifically, the softened water outlet of the primary tank is connected with the outlet of the raw water pump through a backwashing pipeline, and the water drainage main pipeline is connected with the raw water inlet of the primary tank through a back drainage pipeline.

[0036] Specifically, the softened water outlet of the secondary tank is connected with the salt feeding main pipeline through a salt feeding branch pipeline.

[0037] Specifically, the raw water inlet of the primary tank is connected with the raw water inlet of the secondary tank through a forward salt feeding pipeline.

[0038] Specifically, the backwashing pipeline, the back drainage pipeline and the forward salt feeding pipeline are all provided with valves.

[0039] Further, the exchange tank group comprises two groups, i.e., a group A primary tank, a group A secondary tank, a group B primary tank and a group B secondary tank.

[0040] Specifically, the salt feeding main pipeline is connected with the water supply main pipeline through a replacement pipeline, and a valve is arranged on the replacement pipeline.

[0041] Specifically, the valve on the salt feeding main pipeline is located between the replacement pipeline connection position and the brine pump.

[0042] Further, the group A primary tank, the group A secondary tank, the group B primary tank and the group B secondary tank are arranged in a diagonal manner, the group A primary tank is opposite to the group B primary tank, and the group A secondary tank is opposite to the group B secondary tank.

[0043] In the second aspect, the application provides a steam injection boiler connected with the sodium ion exchanger for water treatment of the steam injection boiler in the first aspect; a water inlet of the steam injection boiler is communicated with a water outlet of a steam injection boiler plunger pump; a water inlet of the steam injection boiler plunger pump is communicated with a pipeline damper; the pipeline damper is communicated with a water supply main pipeline; and a valve is arranged between the steam injection boiler and the steam injection boiler plunger pump.

[0044] Further, the pipeline damper comprises a shell, a labyrinth baffle is arranged in the shell, a front flange is arranged at a front end of the shell, and a rear flange is arranged at a rear end of the shell.

[0045] Specifically, the labyrinth baffle comprises upper baffles and lower baffles, and the upper baffles and the lower baffles are staggered.

[0046] Further, the pipeline damper further comprises a movable negative pressure fan exchange agent filling device.

[0047] Specifically, the movable negative pressure fan exchange agent filling device comprises a negative pressure fan and a material box.

[0048] Specifically, the negative pressure air suction port is communicated with the negative pressure fan through an air suction hose, and the material box is communicated with the exchange agent adding port through a feeding hose.

[0049] Compared with the prior art, the application has the following beneficial effects:

[0050] 1. The internal structure of the application is the simplest, the amount of filled resin is large, the amount of produced water is large, and the operation is maintenance-free.

[0051] 2. The water distributor structure of the application is a horn-shaped expansion pipe, a baffle is welded at an expansion pipe outlet, water is sprayed from an annular gap between the horn-shaped expansion pipe and the baffle, a hollow spherical water flow is formed, water impact on the surface of the resin layer is prevented, and pits are prevented from appearing, which leads to poor resin regeneration effect.

[0052] 3. The vertical strip glass peephole is installed between the resin adding port outside the tank body and the side lower manhole, the resin layer height is conveniently viewed, and the observation range is large.

[0053] 4. The pipeline damper installed in the process can eliminate the water hammer effect and prevent the water collector from being damaged.

[0054] 5. The steam injection boiler has an air suction port at the top end outside the tank body for vacuumizing by using a negative pressure fan, and has a resin adding port at the side upper part, so that the resin is conveniently and automatically filled.

[0055] 6. The steam injection boiler has a maintenance manhole in the resin tank inside the side lower part of the tank body, so that maintenance is convenient.

[0056] 7. The utility model discloses two groups of maintenance-free resin tanks A, B adopt diagonal layout, and the process can be optimized, realize the shortest process. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1 It is the structure diagram of sodium ion exchanger of the utility model of oilfield steam injection boiler feed water treatment;

[0058] Figure 2 It is the distribution diagram of diagonal type tank body in the utility model;

[0059] Figure 3 It is the structure diagram of resin tank in the utility model;

[0060] Figure 4 It is the structure diagram of water distributor in the utility model

[0061] Figure 5 It is the structure diagram of single water collecting cap in the utility model;

[0062] Figure 6 It is the structure diagram of pipeline damper in the utility model;

[0063] Figure 7 It is the structure diagram of negative pressure fan exchange agent filling device in the utility model.

[0064] In the drawing: 1, raw water tank;2, raw water pump;3, group A first-stage tank;4, group A second-stage tank;5, group B first-stage tank;6, group B second-stage tank;7, water distributor;8, water collector;9, brine tank;10, brine pump;11, drainage tank;12, pipeline damper;12.1, shell;12.2, front flange;12.3, rear flange;13, steam injection boiler plunger pump;14, steam injection boiler;15, resin tank;16, resin layer;17, raw water inlet;18, softened water outlet;19, negative pressure air outlet;20, resin adding port;21, glass sight glass;22, manhole;23, horn mouth expansion pipe;24, shunt baffle;25, single water collecting cap;25.1, screen pipe;25.2, reinforcing support framework;25.3, connecting flange;26, mounting flange;27, labyrinth baffle;27.1, upper baffle;27.2, lower baffle;28, negative pressure fan exhaust port;29, negative pressure fan;30, material tank;31, feeding hose;32, air suction hose;

[0065] A1, group A No. 1 valve;A2, group A No. 2 valve;A3, group A No. 3 valve;A4, group A No. 4 valve;A5, group A No. 5 valve;A6, group A No. 6 valve;A7, group A No. 7 valve;A8, group A No. 8 valve;A9, group A No. 9 valve;

[0066] B1, B group No. 1 valve; B2, B group No. 2 valve; B3, B group No. 3 valve; B4, B group No. 4 valve; B5, B group No. 5 valve; B6, B group No. 6 valve; B7, B group No. 7 valve; B8, B group No. 8 valve; B9, B group No. 9 valve;

[0067] F1, first control valve; F2, second control valve; F3, third control valve; F4, fourth control valve; F5, fifth control valve; F6, sixth control valve; F7, seventh control valve. DETAILED DESCRIPTION

[0068] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0069] Embodiment 1

[0070] Please refer to Figures 1 to 7 The utility model provides a kind of oilfield steam injection boiler feed water treatment sodium ion exchanger, including resin tank 15, the resin tank 15 includes tank body, the tank body top end is provided with raw water inlet 17, negative pressure air extraction port 19, negative pressure control valve is provided on the negative pressure air extraction port 19, the tank body upper end side wall is provided with resin addition port 20, the tank body inside top end is provided with water distributor 7, the water distributor 7 is connected with raw water inlet 17, the tank body bottom end is provided with softened water outlet 18, the tank body inside bottom end is provided with water collector 8, the water collector 8 is connected with softened water outlet 18;The tank body bottom end side wall is provided with manhole 22 for maintenance, the manhole 22 is provided with maintenance cover, for entering resin tank 15 inside and maintaining;Vertical glass peep mirror 21 is embedded between resin addition port 20 and manhole 22 of the tank body side wall, and resin layer height is conveniently viewed.

[0071] Specifically, the water distributor 7 includes a horn-shaped expansion pipe 23, a shunt baffle 24 is welded at the lower end outlet of the horn-shaped expansion pipe 23, the horn-shaped expansion pipe 23 and the shunt baffle 24 are connected by a thin rod welding, and there is a water passing space between the shunt baffle 24 and the lower end outlet of the horn-shaped expansion pipe 23; the water inlet is sprayed from the annular water passing space between the horn-shaped expansion pipe 23 and the shunt baffle 24, forming a hollow spherical water flow, preventing the water inlet from impacting the surface of the resin layer 16 and forming a pit, which causes poor resin regeneration effect; the water distributor 7 also distributes the regeneration brine water, realizing function sharing.

[0072] Specifically, the water collector 8 comprises a single water collecting cap 25, the single water collecting cap 25 comprises a screen pipe 25.1, the lower end of the screen pipe 25.1 is open, the upper end of the screen pipe 25.1 is closed, the outer wall of the lower end of the screen pipe 25.1 is provided with a connecting flange 25.3, the inner wall of the screen pipe 25.1 is provided with a reinforcing support framework 25.2, the single water collecting cap 25 only allows water to pass through but does not allow resin particles to pass through, thereby preventing the loss of resin particles; the softened water outlet 18 is inserted into the tank body of the resin tank 15, the port outer wall of the softened water outlet 18 in the tank body is welded with a mounting flange 26, the mounting flange 26 leaves an assembly space with the bottom of the tank body; the connecting flange 25.3 of the single water collecting cap 25 is fixed with the mounting flange 26 by using bolts and nuts, and the materials of the bolts and the nuts are 316 stainless steel materials resistant to salt water corrosion. Preferably, the connecting flange 25.3 and the mounting flange 26 are provided with 8 mounting holes.

[0073] The resin tank 15 is provided with at least two groups, each group comprising a primary tank and a secondary tank, in this embodiment, two groups are provided, comprising an A group primary tank 3, an A group secondary tank 4, a B group primary tank 5, and a B group secondary tank 6.

[0074] The oilfield steam injection boiler feed water treatment sodium ion exchanger further comprises a raw water tank 1, a brine tank 9, and a drainage tank 11. Specifically, the pipeline connection mode is as follows:

[0075] The raw water tank 1 is communicated with a raw water pump 2, the raw water inlet 17 of the A group primary tank 3 is communicated with the outlet of the raw water pump 2 through an A group primary liquid inlet pipeline; the softened water outlet 18 of the A group primary tank 3 is communicated with the raw water inlet 17 of the A group secondary tank 4 through an A group secondary liquid inlet pipeline; the softened water outlet 18 of the A group secondary tank 4 is communicated with an A group water supply pipeline, the A group primary liquid inlet pipeline is provided with an A group first valve A1, the A group secondary liquid inlet pipeline is provided with an A group second valve A2, and the A group water supply pipeline is provided with an A group third valve A3; the A group first valve A1, the A group second valve A2, and the A group third valve A3 are used for controlling the liquid inlet and water supply processes.

[0076] The softened water outlet 18 of the A group primary tank 3 is communicated with the outlet of the raw water pump 2 through an A group backwashing pipeline; the drainage tank 11 is communicated with a drainage main pipeline, the drainage main pipeline is communicated with the raw water inlet 17 of the A group primary tank 3 through an A group reverse drainage pipeline; the A group backwashing pipeline is provided with an A group fourth valve A4, and the A group reverse drainage pipeline is provided with an A group fifth valve A5, the A group fourth valve A4 and the A group fifth valve A5 are used for controlling the backwashing process.

[0077] The salt water tank 9 is communicated with a salt water pump 10, the outlet of the salt water pump 10 is communicated with the softened water outlet 18 of the A group secondary tank 4 through an A group salt feeding pipeline; the softened water outlet 18 of the A group primary tank 3 is communicated with a drainage main pipeline through an A group primary positive drainage pipeline; the raw water inlet 17 of the A group primary tank 3 is communicated with the raw water inlet 17 of the A group secondary tank 4 through an A group positive salt feeding pipeline; the A group salt feeding pipeline is provided with an A group No. 6 valve A6, the A group primary positive drainage pipeline is provided with an A group No. 7 valve A7, and the A group positive salt feeding pipeline is provided with an A group No. 8 valve A8; the A group No. 6 valve A6, the A group No. 7 valve A7 and the A group No. 8 valve A8 are used for controlling the salt feeding process.

[0078] The softened water outlet 18 of the A group secondary tank 4 is communicated with a drainage main pipeline through an A group secondary positive drainage pipeline, the A group secondary positive drainage pipeline is provided with an A group No. 9 valve A9, the drainage main pipeline is provided with a second control valve F2, and the A group No. 7 valve A7, the A group No. 9 valve A9 and the second control valve F2 are used for controlling the positive washing process.

[0079] The raw water inlet 17 of the B group primary tank 3 is communicated with the outlet of the raw water pump 2 through a B group primary liquid feeding pipeline; the softened water outlet 18 of the B group primary tank 3 is communicated with the raw water inlet 17 of the B group secondary tank 4 through a B group secondary liquid feeding pipeline; the softened water outlet 18 of the B group secondary tank 4 is communicated with a B group water supply pipeline, the B group primary liquid feeding pipeline is provided with a B group No. 1 valve B1, the B group secondary liquid feeding pipeline is provided with a B group No. 2 valve B2, and the B group water supply pipeline is provided with a B group No. 3 valve B3; the B group No. 1 valve B1, the B group No. 2 valve B2 and the B group No. 3 valve B3 are used for controlling the liquid feeding and water supply processes.

[0080] The softened water outlet 18 of the B group primary tank 3 is communicated with the outlet of the raw water pump 2 through a B group backwashing pipeline; the drainage tank 11 is communicated with a drainage main pipeline, and the drainage main pipeline is communicated with the raw water inlet 17 of the B group primary tank 3 through a B group back drainage pipeline; the B group backwashing pipeline is provided with a B group No. 4 valve B4, and the B group back drainage pipeline is provided with a B group No. 5 valve B5; the B group No. 4 valve B4 and the B group No. 5 valve B5 are used for controlling the backwashing process.

[0081] The saltwater tank 9 is communicated with a saltwater pump 10, the outlet of the saltwater pump 10 is communicated with the softened water outlet 18 of the B group secondary tank 4 through a B group salt feeding pipeline; the softened water outlet 18 of the B group primary tank 3 is communicated with the total drainage pipeline through a B group primary positive drainage pipeline; the raw water inlet 17 of the B group primary tank 3 is communicated with the raw water inlet 17 of the B group secondary tank 4 through a B group positive salt feeding pipeline; the B group salt feeding pipeline is provided with a B group No. 6 valve B6, the B group primary positive drainage pipeline is provided with a B group No. 7 valve B7, and the B group positive salt feeding pipeline is provided with a B group No. 8 valve B8; the B group No. 6 valve B6, the B group No. 7 valve B7 and the B group No. 8 valve B8 are used for controlling the salt feeding process.

[0082] The softened water outlet 18 of the B group secondary tank 4 is communicated with the total drainage pipeline through a group secondary positive drainage pipeline, the group secondary positive drainage pipeline is provided with a B group No. 9 valve B9, the total drainage pipeline is provided with a second control valve F2, and the B group No. 7 valve B7, the B group No. 9 valve B9 and the second control valve F2 are used for controlling the positive washing process.

[0083] The outlet of the saltwater pump 10 is provided with a total salt feeding pipeline, the A group salt feeding pipeline and the B group salt feeding pipeline are communicated with the total salt feeding pipeline, the A group water supply pipeline and the B group water supply pipeline are communicated with a total water supply pipeline, the total water supply pipeline is communicated with the total salt feeding pipeline through a displacement pipeline, the displacement pipeline is provided with a first control valve F1, the total salt feeding pipeline is provided with a third control valve F3 between the displacement pipeline and the saltwater pump 10, and the first control valve F1 is used for controlling the displacement process.

[0084] The negative pressure control valve of the A group primary tank 3 is a fifth control valve F5, the negative pressure control valve of the A group secondary tank 4 is a sixth control valve F6, the negative pressure control valve of the B group primary tank 5 is a seventh control valve F7, and the negative pressure control valve of the B group secondary tank 6 is an eighth control valve F8.

[0085] Preferably, all the valves are electromagnetic valves, and all the pumps are electrically driven pumps, which are convenient for automatic control.

[0086] Preferably, all the pipelines, all the valves, the resin tanks 15, the water distributors 7 and the water collectors 8 are made of 316L stainless steel which is resistant to saltwater corrosion.

[0087] Preferably, when only the A group primary tank 3, the A group secondary tank 4, the B group primary tank 5 and the B group secondary tank 6 are provided, the four resin tanks 15 are arranged in a diagonal manner, the A group primary tank 3 is opposite to the B group primary tank 5, and the A group secondary tank 4 is opposite to the B group secondary tank 6, as shown in the figure, so that the shortest process and the least control valves are realized, and one group is used for operation and the other group is used for regeneration standby. Figure 2

[0088] Embodiment 2: ​

[0089] The embodiment provides a steam injection boiler, which is connected with the oilfield steam injection boiler feed water treatment sodium ion exchanger in the embodiment 1, the water inlet of the steam injection boiler 14 is communicated with the water outlet of the steam injection boiler plunger pump 13, the water inlet of the steam injection boiler plunger pump 13 is communicated with the pipeline damper 12, the pipeline damper 12 is communicated with the water supply main pipeline, and the fourth control valve F4 is arranged between the steam injection boiler 14 and the steam injection boiler plunger pump 13.

[0090] Specifically, the pipeline damper 12 comprises a shell 12.1, a labyrinth baffle 27 is arranged in the shell 12.1, a front flange 12.2 is arranged at the front end of the shell 12.1, a rear flange 12.3 is arranged at the rear end of the shell 12.1, the labyrinth baffle 27 comprises upper baffles 27.1 and lower baffles 27.2, the upper baffles 27.1 and the lower baffles 27.2 are staggered, the labyrinth baffle 27 can effectively prevent water hammer impact caused by the water suction characteristics of the steam injection boiler plunger pump 13, reduce the impact wave, and prevent the damage of the water collector 8.

[0091] The mobile negative pressure fan resin filling device comprises a negative pressure fan 29 and a material box 30, the negative pressure suction port 19 is communicated with the negative pressure fan 29 through a suction hose 32, the material box 30 is communicated with the resin adding port 20 through a feeding hose 31, and the resin is sucked into the resin tank 15 through negative pressure suction; the negative pressure suction port 19 and the suction hose 32 and the resin adding port 20 and the feeding hose 31 are connected through quick couplings, so that the mobile negative pressure fan resin filling device is convenient to disassemble and quickly connect; the material in the material box 30 is a mixture of resin particles and dilute brine, and the resin particles can be prevented from being broken in the suction and migration process.

[0092] Embodiment 3:

[0093] Based on the embodiment 2, the embodiment provides a use method of the oilfield steam injection boiler feed water treatment sodium ion exchanger, taking the A group resin tank operation as an example, and comprising the following steps.

[0094] S1, the raw water in the raw water tank 1 is pressurized by the raw water pump 2, enters the raw water inlet 17 of the A group first tank 3 through the A group No. 1 valve A1, enters the water distributor 7, is sprayed out through the annular gap between the horn expansion pipe 23 and the flow dividing baffle 24, forms a spherical water flow to fall down, avoids the occurrence of pits on the surface of the resin layer 16, flows through the sodium ion exchange resin layer 16 and falls to the bottom of the A group first tank 3, and in the process, the displacement reaction can occur, the calcium and magnesium ions capable of forming hardness are removed, and the softened water meeting the standard is obtained.

[0095] The softened water enters the water distributor 7, is sprayed out through the annular gap between the horn-shaped expansion pipe 23 and the shunt baffle 24, forms a spherical water flow, avoids the formation of pits on the surface of the resin layer 16, and falls through the sodium ion exchange resin layer 16 to the bottom of the group A secondary tank 4. In this process, the replacement reaction occurs, the calcium and magnesium ions that can form hardness (leak hardness) in the softened water are removed, and the softened water that meets the standard is obtained, that is, the insurance effect is achieved. The water collector 8 at the bottom of the group A secondary tank 4 only allows water to pass through but not resin particles, thereby preventing the loss of resin particles.

[0096] The softened water passes through the group A No. 3 valve A3, continues to enter the pipeline damper 12, and enters the steam injection boiler plunger pump 13. The pipeline damper 12 can effectively prevent the water hammer impact generated by the steam injection boiler plunger pump 13, reduce the shock wave, and prevent the water hammer effect from damaging the water collector 8 in the resin tank 15.

[0097] The softened water is pressurized by the steam injection boiler plunger pump 13 and enters the oilfield steam injection boiler 14.

[0098] The entire operation process can be observed through the glass viewing mirror 21.

[0099] The entire operation process is controlled by the PLC controller to achieve local and remote control, stable operation, and simple operation, and maintenance-free operation is achieved. The PLC controller is a programmable controller, which can be purchased by those skilled in the art, and is electrically connected with all electromagnetic valves and pumps and is programmed and controlled according to the above method.

[0100] Example 4:

[0101] Based on example 2, the embodiment provides a regeneration method of the oilfield steam injection boiler feed water treatment sodium ion exchanger.

[0102] When the maintenance-free sodium ion exchanger for oilfield steam injection boiler feed water treatment is used, the group A resin tank and the group B resin tank are alternately operated, that is, when the group A resin tank is in the running state, the group B resin tank is in the regeneration state, and vice versa.

[0103] Specifically, taking the regeneration of the group B resin tank as an example, the regeneration operation process is divided into six steps of backwashing, salt feeding, sedimentation, replacement, primary positive washing, and secondary positive washing.

[0104] Backwash: The raw water in the raw water tank 1 is pressurized by the raw water pump 2, enters the bottom water collector 8 of the B group first tank 5 through the B group No. 4 valve B4, reversely passes through the resin layer 16 through the single water collector cap 25, then enters the total drainage pipeline through the B group No. 5 valve B5 and the water distributor 7, and flows into the drainage tank 11 through the second control valve F2. It can play the role of loosening the resin, removing the suspended solids and other impurities accumulated in the resin layer 16, and preparing for the contact between the resin particles and the brine. The backwash ends when the discharged water is clear and transparent.

[0105] Salt feeding: After the backwash is completed, the dilute brine in the brine tank 9 is pressurized by the brine pump 10, enters the bottom water collector 8 of the B group second tank 6 through the B group No. 6 valve B6, reversely passes through the resin layer 16 through the single water collector cap 25, then enters the B group first tank 5 top water distributor 7 through the B group No. 8 valve B8, is sprayed through the annular gap between the horn expansion pipe 23 and the shunt baffle 24, slowly flows through the sodium ion exchange resin layer 16 and drops to the bottom of the B group first tank 5. In this process, the displacement reaction occurs, the exchange capacity of the sodium ion exchange agent is restored, and then the brine passes through the B group No. 7 valve B7 into the total drainage pipeline, and flows into the drainage tank 11 through the second control valve F2. The salt feeding ends when the salt content of the discharged water is 7%.

[0106] Settling: After the salt feeding is completed, all valves are in the closed state, and the soaking time is stopped for a period of time, so that the brine and the resin particles fully perform the displacement reaction and improve the utilization rate of the brine. The settling time is generally 20 minutes.

[0107] Displacement: It is the reverse process of salt feeding. After the settling is completed, the first control valve F1 is opened, the softened water in the A group second tank 4 enters the bottom water collector 8 of the B group second tank 6 through the B group No. 6 valve B6, reversely passes through the resin layer 16 through the single water collector cap 25, then enters the B group first tank 5 top water distributor 7 through the B group No. 8 valve B8, is sprayed through the annular gap between the horn expansion pipe 23 and the shunt baffle 24, slowly flows through the sodium ion exchange resin layer 16 and drops to the bottom of the B group first tank 5, then passes through the B group No. 7 valve B7 into the total drainage pipeline, and flows into the drainage tank 11 through the second control valve F2. The purpose is to use the softened water to slowly push the brine through the resin layer 16 and improve the utilization rate of the brine. The displacement ends when the salt content of the discharged water is ≤1.5%.

[0108] Primary backwash: The raw water in the raw water tank 1 is pressurized by the raw water pump 2, enters the top water distributor 7 of the B group primary tank 5 through the B group No. 1 valve B1, is sprayed out through the annular gap between the horn-shaped expansion pipe 23 and the flow dividing baffle 24, flows through the sodium ion exchanger resin layer 16, drops to the bottom of the B group primary tank 5, passes through the bottom water collector 8, enters the No. 11 electric valve on the total drainage pipeline through the B group No. 7 valve B7, and flows into the drainage tank 11. The purpose is to wash out the residual brine and the calcium and magnesium ions that have been exchanged. The primary backwash takes the water hardness ≤20 mg / L as the end point.

[0109] Secondary backwash: The raw water in the raw water tank 1 is pressurized by the raw water pump 2, enters the top water distributor 7 of the B group primary tank 5 through the B group No. 1 valve B1, is sprayed out through the annular gap between the horn-shaped expansion pipe 23 and the flow dividing baffle 24, flows through the sodium ion exchanger resin layer 16, drops to the bottom of the B group primary tank 5, passes through the bottom water collector 8, enters the top water distributor 7 of the B group secondary tank 6 through the B group No. 2 valve B2, is sprayed out through the annular gap between the horn-shaped expansion pipe 23 and the flow dividing baffle 24, flows through the sodium ion exchanger resin layer 16, drops to the bottom of the B group secondary tank 6, passes through the bottom water collector 8 outlet, enters the total drainage pipeline through the B group No. 9 valve B9, flows into the drainage tank 11 through the second control valve F2. The purpose is to wash out the residual calcium and magnesium ions. The secondary backwash takes the water hardness ≤0.1 mg / L as the end point.

[0110] The whole regeneration process can be observed through the glass sight 21.

[0111] Example 5:

[0112] Based on Example 2, this example provides a filling method of the sodium ion exchanger for oilfield steam injection boiler feed water treatment:

[0113] When the resin negative pressure filling function of the sodium ion exchanger for oilfield steam injection boiler feed water treatment is used, a mobile negative pressure air blower 29 is used for filling.

[0114] When filling the resin, first connect the air suction hose 32 with the negative pressure air suction port 19, and connect the steel wire feeding hose 31 with the resin adding port 20.

[0115] Use the negative pressure air blower 29 to continuously suck air from the negative pressure air suction port 19, and the gas in the resin tank 15 can be discharged from the negative pressure air blower exhaust port 28 along the air suction hose 32, so that a negative pressure vacuum state is formed in the resin tank 15, and the resin particles can enter the resin adding port 20 from the material tank 30 along the feeding hose 31, fall into the resin tank 15, and continue until the resin layer 16 height is observed to be filled to the specified height through the glass sight 21, which can be at the glass sight 1 / 2.

[0116] In the present application, the parts not discussed, the connection mode of each part in the present application are all the known technology in the technical field.

[0117] In the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, "connected" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0118] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and other terms indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0119] In the description of the present application, the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present application, the illustrative description 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.

[0120] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A sodium ion exchanger for treating feed water for oil field steam generator boilers comprising an exchanger tank group, characterized in that, The exchange tank group is provided with at least one group, the exchange tank group comprises at least one exchange tank, a raw water inlet, a negative pressure air outlet and an exchange agent adding port are arranged at the top of the tank body of the exchange tank, and a softened water outlet is arranged at the bottom of the tank body.

2. The sodium ion exchanger for feed water treatment of an oilfield steam generator according to claim 1, characterized by, The tank body is provided with a raw water inlet and a negative pressure air outlet at the top end, and an exchange agent adding port is arranged on the side wall of the upper end of the tank body; the tank body is provided with a softened water outlet at the bottom end; A negative pressure control valve is arranged on the negative pressure air outlet; a water distributor is arranged at the top end of the inside of the tank body, and the water distributor is connected with the raw water inlet; a water collector is arranged at the bottom end of the inside of the tank body, and the water collector is connected with the softened water outlet.

3. The sodium ion exchanger for feed water treatment of an oilfield steam generator according to claim 2, characterized by, A manhole is arranged on the side wall of the bottom end of the tank body, and a vertically installed glass peephole is embedded between the exchange agent adding port and the manhole on the side wall of the tank body.

4. The sodium ion exchanger for feed water treatment of an oilfield steam generator according to claim 2, characterized by, The water distributor comprises a horn-shaped expansion pipe; A shunt baffle is fixedly connected to the lower end outlet of the horn-shaped expansion pipe, and the horn-shaped expansion pipe and the shunt baffle are connected by using a thin rod; There is a water passing space between the shunt baffle and the lower end outlet of the horn-shaped expansion pipe.

5. The sodium ion exchanger for feed water treatment of an oilfield steam injection boiler according to claim 2, characterized by, The water collector comprises a single water collecting cap; The single water collecting cap comprises a screen pipe, the lower end of the screen pipe is open, the upper end of the screen pipe is closed, a connecting flange is arranged on the outer wall of the lower end of the screen pipe, and a reinforcing support framework is arranged on the inner wall of the screen pipe; The softened water outlet is inserted into the tank body, and a mounting flange is connected to the port outer wall of the softened water outlet in the tank body, and the mounting flange and the bottom of the tank body are provided with an assembly space; The connecting flange of the single water collecting cap and the mounting flange are fixed by using a bolt and a nut.

6. The sodium ion exchanger for feed water treatment of an oilfield steam generator according to claim 1, characterized by, Further comprising a raw water tank, a salt water tank and a drainage tank; The raw water tank is communicated with a raw water pump, and the outlet of the raw water pump is communicated with the raw water inlet of the tank body through a liquid inlet pipeline; The drainage tank is communicated with a drainage main pipeline, and the drainage main pipeline is communicated with the softened water outlet of the tank body through a drainage branch pipeline; The tank bodies in the exchange tank group are communicated at the end, forming a frontmost raw water inlet and a last softened water outlet; The salt water tank is communicated with a salt water pump, the outlet of the salt water pump is communicated with a salt inlet main pipeline, and the salt inlet main pipeline is communicated with the last softened water outlet through a salt inlet branch pipeline; The last softened water outlet is communicated with a water supply branch pipeline, and the water supply branch pipeline is communicated with a water supply main pipeline; The liquid inlet pipeline, the drainage main pipeline, the drainage branch pipeline, the salt inlet main pipeline, the salt inlet branch pipeline, the water supply branch pipeline and the water supply main pipeline are all provided with valves.

7. The sodium ion exchanger for feed water treatment of an oilfield steam injection boiler according to claim 6, characterized by, Each group of the exchange tank group comprises two tank bodies, including a first-stage tank and a second-stage tank; The softened water outlet of the first-stage tank is communicated with the raw water inlet of the second-stage tank; The softened water outlet of the first-stage tank is communicated with the outlet of the raw water pump through a backwashing pipeline, and the drainage main pipeline is communicated with the raw water inlet of the first-stage tank through a backwashing pipeline; The softened water outlet of the second-stage tank is communicated with the salt inlet main pipeline through a salt inlet branch pipeline; The raw water inlet of the first-stage tank is communicated with the raw water inlet of the second-stage tank through a normal salt inlet pipeline; The backwashing pipeline, the backwashing pipeline and the normal salt inlet pipeline are all provided with valves.

8. The sodium ion exchanger for feed water treatment of an oilfield steam generator according to claim 7, characterized by, The exchange tank group comprises two groups, including a first-stage tank of group A, a second-stage tank of group A, a first-stage tank of group B and a second-stage tank of group B; The salt inlet main pipeline and the water supply main pipeline are communicated through a replacement pipeline, and a valve is arranged on the replacement pipeline. The valve on the salt inlet main line is located between the displacement line connection and the salt water pump.

9. The sodium ion exchanger for feed water treatment of an oilfield steam injection boiler according to claim 8, characterized by, The A group primary tank, the A group secondary tank, the B group primary tank and the B group secondary tank are diagonally arranged, the A group primary tank is opposite to the B group primary tank, and the A group secondary tank is opposite to the B group secondary tank.

10. A steam injection boiler characterized by The steam injection boiler is connected with the sodium ion exchanger for oilfield steam injection boiler feed water treatment in claim 6. The water inlet of the steam injection boiler is communicated with the water outlet of the steam injection boiler plunger pump. The water inlet of the steam injection boiler plunger pump is communicated with the pipeline damper. The pipeline damper is communicated with the water supply main line, and a valve is arranged between the steam injection boiler and the steam injection boiler plunger pump.

11. A steam injection boiler according to claim 10, characterised in that The pipeline damper comprises a shell, a labyrinth baffle is arranged in the shell, a front flange is arranged at the front end of the shell, and a rear flange is arranged at the rear end of the shell. The labyrinth baffle comprises upper baffles and lower baffles, and the upper baffles and the lower baffles are staggered.

12. A steam injection boiler according to claim 10, characterized in that Further comprising a mobile negative pressure fan exchange agent filling device; The mobile negative pressure fan exchange agent filling device comprises a negative pressure fan and a material box. The negative pressure air suction port is communicated with the negative pressure fan through an air suction hose, and the material box is communicated with the exchange agent adding port through a feeding hose.

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