A diaphragm feed pump
The diaphragm feed pump, through the design of an elastic diaphragm and a telescopic mechanism, solves the problems of high energy consumption and easy clogging of existing filter press pumps, and achieves low-cost, high-efficiency material conveying and continuous feeding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 德州海联液压科技有限公司
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-09
AI Technical Summary
Existing filter press pumps, such as slurry pumps and screw pumps, are energy-intensive, costly, and prone to clogging, leading to increased production costs and low efficiency.
It adopts a diaphragm-type feed pump, which uses an elastic diaphragm and telescopic mechanism to realize the feeding and discharging of materials. It conveys materials by changing the working chamber volume and internal pressure, and realizes the alternating operation of the two bodies through a bidirectional telescopic mechanism. It is controlled by a hydraulic system and controller.
It reduced manufacturing and maintenance costs, eliminated blockages, improved work efficiency, and achieved continuous and faster material supply.
Smart Images
Figure CN224339152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pump technology for filter presses, and in particular to a diaphragm feed pump. Background Technology
[0002] Currently, filter presses are commonly used solid-liquid separation machines. By applying pressure to a solid-liquid mixture, the liquid material in the mixture is forced to seep out and separate from the solid material. Filter presses are mostly used to process solid-liquid mixtures such as slurry and mud. These materials typically have high viscosity and poor flowability, so a dedicated feed pump is required when using a filter press to pump the material into the machine.
[0003] Common pumps used in filter presses include slurry pumps and screw pumps. Slurry pumps use a motor to drive the impeller, which in turn feeds material into the filter press. Screw pumps, on the other hand, use a motor to drive the screw, which in turn feeds material into the filter press. Both types of feed pumps directly utilize the mechanical energy generated by the motor torque, resulting in relatively high energy consumption, higher costs, and lower efficiency. Furthermore, because the working environment of feed pumps is often rough, they frequently cannot be lubricated in a timely manner, leading to blockages and necessitating production stoppages for maintenance, thus increasing production costs. Utility Model Content
[0004] The purpose of this invention is to provide a diaphragm feed pump to solve at least one of the aforementioned technical problems in the prior art.
[0005] To solve the above-mentioned technical problems, this utility model provides a diaphragm feed pump, comprising: a body and a telescopic mechanism;
[0006] The body has an internal cavity; an elastic diaphragm is installed inside the cavity;
[0007] The elastic diaphragm divides the cavity into a working cavity and a deformation cavity;
[0008] The main body is provided with a feed inlet and a discharge outlet on one side of the working chamber;
[0009] The telescopic end of the telescopic mechanism extends from the outside into the deformation cavity and connects to the elastic diaphragm. It is used to reciprocate to drive the elastic diaphragm to bulge to one side of the working cavity and the other side of the deformation cavity. By changing the volume of the working cavity and the internal pressure, the material can enter and exit the working cavity and be conveyed.
[0010] Furthermore, a connecting seat plate is fixedly provided at the center of the elastic diaphragm, and the telescopic end of the telescopic mechanism is connected to the connecting seat plate.
[0011] That is, the telescopic end of the telescopic mechanism is connected to the elastic diaphragm through the connecting seat plate.
[0012] Preferably, the cavity is cylindrical in shape, the connecting plate is circular, and the elastic diaphragm is circular or annular in shape.
[0013] When the elastic diaphragm is annular, a sealed connection is required between the elastic diaphragm and the connecting seat plate.
[0014] Furthermore, a feed check valve is provided at the feed inlet to control the unidirectional flow of material into the working chamber; a discharge check valve is provided at the discharge outlet to control the unidirectional flow of material out of the working chamber.
[0015] Furthermore, the telescopic mechanism is a bidirectional telescopic mechanism, including a first telescopic end and a second telescopic end;
[0016] The main body includes a first main body and a second main body respectively disposed on the left and right sides of the bidirectional telescopic mechanism;
[0017] The first telescopic end is connected to the first elastic diaphragm of the first body;
[0018] The second telescopic end is connected to the second elastic diaphragm of the second body;
[0019] When the bidirectional telescopic mechanism is in operation, the first telescopic end and the second telescopic end extend and retract alternately, thereby realizing the alternating operation of the first body and the second body.
[0020] Furthermore, the first feed port on the first body and the second feed port on the second body are connected to the feed pipeline for feeding materials into the first working chamber of the first body and the second working chamber of the second body, respectively.
[0021] The first discharge port on the first body and the second discharge port on the second body are connected to the feeding pipeline to realize the alternating output and delivery of materials in the first working chamber of the first body and the second working chamber of the second body to the filter press.
[0022] Preferably, the first discharge port and the second discharge port are connected to the feed pipeline through two feed branches, and the first discharge check valve and the second discharge check valve are respectively installed on the two feed branches; a main feed port is provided in the middle of the feed pipeline, and the main feed port is connected to the inlet of the filter press through the pipeline.
[0023] Preferably, the first feed inlet and the second feed inlet are connected to the feed pipeline through two feed branches, and the first discharge check valve and the second discharge check valve are respectively installed on the two feed branches; a main feed inlet is provided in the middle of the feed pipeline.
[0024] Furthermore, the bidirectional telescopic mechanism is a bidirectional hydraulic cylinder, and the telescopic rods at both ends of the bidirectional hydraulic cylinder are respectively connected to the first elastic diaphragm of the first body and the second elastic diaphragm of the second body.
[0025] Furthermore, it also includes a hydraulic pump and a reversing valve. The inlet of the reversing valve is connected to the outlet of the hydraulic pump through an oil circuit. The two outlets of the reversing valve are respectively connected to the left oil chamber and the right oil chamber in the bidirectional hydraulic cylinder, for selectively supplying oil to the left oil chamber or the right oil chamber, thereby realizing the alternating extension and retraction of the two telescopic rods.
[0026] The oil inlet of the hydraulic pump is connected to the oil tank through an oil circuit. Preferably, a level sensor and a temperature sensor are installed in the oil tank to monitor the level and temperature of the hydraulic oil in the tank in real time.
[0027] Furthermore, it also includes a controller, which is connected to the hydraulic pump and the reversing valve respectively, for controlling the hydraulic pump to alternately supply oil to the left and right oil chambers in the bidirectional hydraulic cylinder.
[0028] Preferably, the external electrical control box of the controller is equipped with green, red, and yellow indicator lights, all of which are electrically connected to the controller. These three indicator lights are used to indicate various operating states of the feed pump. For example, a lit green indicator light indicates that the feed pump is in normal operation; a lit red indicator light indicates that the feed pump is stopped or in a fault state; and a lit yellow indicator light is used to warn of alarm messages such as low oil level and / or high oil temperature in the oil tank.
[0029] By adopting the above technical solution, this utility model has the following beneficial effects:
[0030] This utility model provides a diaphragm feed pump with a simple structure, lower manufacturing and maintenance costs, and eliminates the clogging phenomenon of piston feed pumps, greatly improving working efficiency.
[0031] Furthermore, by setting up two interconnected first and second bodies, and utilizing a bidirectional telescopic mechanism to achieve uninterrupted alternating operation between the two, continuous material feeding is achieved, greatly improving the material feeding speed. Attached Figure Description
[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0033] Figure 1This is a schematic diagram of the diaphragm feed pump provided in Embodiment 1 of this utility model;
[0034] Figure 2 This is a front view of the diaphragm feed pump provided in Embodiment 2 of this utility model;
[0035] Figure 3 A top view of the diaphragm feed pump provided in Embodiment 2 of this utility model;
[0036] Figure 4 This is a schematic diagram of the hydraulic pump and reversing valve in Embodiment 2 of this utility model.
[0037] Figure label:
[0038] 10-Body; 10a-First Body; 10b-Second Body; 11-Working Chamber; 11a-First Working Chamber; 11b-Second Working Chamber; 12-Deformation Chamber; 13-Feed Inlet; 13a-First Feed Inlet; 13b-Second Feed Inlet; 14-Discharge Outlet; 14a-First Discharge Outlet; 14b-Second Discharge Outlet; 20-Telescopic Mechanism; 20a-Bidirectional Telescopic Mechanism; 30-Elastic Diaphragm; 30a-First Elastic Diaphragm; 30b-Second Elastic Diaphragm; 31-Connecting Seat Plate; 40-Feed Check Valve; 50-Discharge Check Valve; 60-Feed Pipeline; 70-Supply Pipeline; 80-Hydraulic Pump; 81-Directional Control Valve. Detailed Implementation
[0039] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0042] The present invention will be further explained below with reference to specific embodiments.
[0043] Example 1
[0044] See Figure 1 As shown, the diaphragm feed pump disclosed in this embodiment includes: a body 10 and a telescopic mechanism 20; the body 10 has a cavity inside; an elastic diaphragm 30 is disposed in the cavity; the elastic diaphragm 30 divides the cavity into a working cavity 11 and a deformation cavity 12.
[0045] The main body 10 is provided with a feed inlet 13 and a discharge outlet 14 on one side of the working chamber 11; the telescopic end of the telescopic mechanism 20 extends into the deformation chamber 12 from the outside and connects with the elastic diaphragm 30, and is used to reciprocate to drive the elastic diaphragm 30 to bulge to one side of the working chamber 11 and to bulge to one side of the deformation chamber 12, thereby changing the volume and internal pressure of the working chamber 11 to realize the material entering and exiting the working chamber 11 and conveying.
[0046] Preferably, a connecting plate 31 is fixedly disposed at the center of the elastic diaphragm 30, and the telescopic end of the telescopic mechanism 20 is connected to the connecting plate 31. That is, the telescopic end of the telescopic mechanism 20 is connected to the elastic diaphragm 30 through the connecting plate 31.
[0047] Preferably, the cavity is cylindrical in shape, and the connecting plate 31 is a circular plate; the elastic diaphragm 30 is circular or annular in shape. When the elastic diaphragm 30 is annular, a sealed connection is required between the elastic diaphragm 30 and the connecting plate 31.
[0048] A feed check valve 40 is provided at the feed inlet 13 to control the unidirectional flow of material into the working chamber 11; a discharge check valve 50 is provided at the discharge outlet 14 to control the unidirectional flow of material out of the working chamber 11.
[0049] This utility model provides a diaphragm feed pump with a simple structure, lower manufacturing and maintenance costs, and eliminates the clogging phenomenon of piston feed pumps, greatly improving working efficiency.
[0050] Example 2
[0051] This embodiment is basically the same as embodiment 1, except that:
[0052] See Figure 2-4 As shown, the telescopic mechanism 20 preferably adopts a bidirectional telescopic mechanism 20a, including a first telescopic end and a second telescopic end; the body 10 includes a first body 10a and a second body 10b respectively disposed on the left and right sides of the bidirectional telescopic mechanism 20a; the first telescopic end of the bidirectional telescopic mechanism 20a is connected to the first elastic diaphragm 30a of the first body 10a; the second telescopic end is connected to the second elastic diaphragm 30b of the second body 10b; when the bidirectional telescopic mechanism 20a is working, its first telescopic end and second telescopic end alternately extend and retract, thereby realizing the alternating operation of the first body 10a and the second body 10b.
[0053] The first feed port 13a on the first body 10a and the second feed port 13b on the second body 10b are connected to the feed pipe 60 for feeding materials into the first working chamber 11a of the first body 10a and the second working chamber 11b of the second body 10b, respectively.
[0054] The first discharge port 14a on the first body 10a and the second discharge port 14b on the second body 10b are connected to the feeding pipeline 70 to realize the alternating output and delivery of materials in the first working chamber 11a of the first body 10a and the second working chamber 11b of the second body 10b to the filter press.
[0055] Preferably, the first discharge port 14a and the second discharge port 14b are connected to the feed pipeline 70 through two feed branches, and the first discharge check valve 50 and the second discharge check valve 50 are respectively installed on the two feed branches; a main feed port is provided in the middle of the feed pipeline 70, and the main feed port is connected to the inlet of the filter press through a pipeline.
[0056] Preferably, the first feed inlet 13a and the second feed inlet 13b are connected to the feed pipeline 60 through two feed branches, and the first discharge check valve 50 and the second discharge check valve 50 are respectively provided on the two feed branches; a main feed inlet is provided in the middle of the feed pipeline 60.
[0057] In this embodiment, the bidirectional telescopic mechanism 20a is a bidirectional hydraulic cylinder, and the telescopic rods at both ends of the bidirectional hydraulic cylinder are respectively connected to the first elastic diaphragm 30a of the first body 10a and the second elastic diaphragm 30b of the second body 10b. In practical applications, the bidirectional telescopic mechanism 20a can also be an electric or pneumatic bidirectional telescopic mechanism.
[0058] The embodiment also includes a hydraulic pump 80 and a reversing valve 81. The inlet of the reversing valve 81 is connected to the outlet of the hydraulic pump 80 through an oil circuit. The two outlets of the reversing valve 81 are respectively connected to the left oil chamber and the right oil chamber in the bidirectional hydraulic cylinder through two control pipelines 82, which are used to selectively supply oil to the left oil chamber or the right oil chamber, thereby realizing the alternating extension and retraction of the two telescopic rods.
[0059] The oil inlet of the hydraulic pump 80 is connected to the oil tank through an oil circuit. Preferably, a level sensor and a temperature sensor (not shown) are installed in the oil tank to monitor the level and temperature of the hydraulic oil in the tank in real time.
[0060] Furthermore, it also includes a controller (not shown), which is connected to the hydraulic pump 80 and the reversing valve 81 respectively, and is used to control the hydraulic pump 80 to alternately supply oil to the left oil chamber and the right oil chamber in the bidirectional hydraulic cylinder.
[0061] Preferably, the external electrical control box of the controller is equipped with green, red, and yellow indicator lights (not shown), all three of which are electrically connected to the controller. These three indicator lights are used to indicate various operating states of the feed pump. For example, a lit green indicator light indicates that the feed pump is in normal operation; a lit red indicator light indicates that the feed pump is stopped or in a fault state; and a lit yellow indicator light is used to warn of alarm messages such as low oil level and / or high oil temperature in the oil tank.
[0062] This embodiment sets up two interconnected first bodies 10a and second bodies 10b, and uses a bidirectional telescopic mechanism 20a to enable the two to work alternately without interruption, thereby achieving continuous material feeding and greatly improving the material feeding speed.
[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A diaphragm feed pump, characterized in that, include: Body and telescopic mechanism; The body has an internal cavity; an elastic diaphragm is installed inside the cavity; The elastic diaphragm divides the cavity into a working cavity and a deformation cavity; The main body is provided with a feed inlet and a discharge outlet on one side of the working chamber; The telescopic end of the telescopic mechanism extends from the outside into the deformation cavity and connects to the elastic diaphragm. It is used to reciprocate to drive the elastic diaphragm to bulge to one side of the working cavity and the other side of the deformation cavity. By changing the volume of the working cavity and the internal pressure, the material can enter and exit the working cavity and be conveyed.
2. The diaphragm feed pump according to claim 1, characterized in that, A connecting seat plate is fixedly disposed at the center of the elastic diaphragm, and the telescopic end of the telescopic mechanism is connected to the connecting seat plate.
3. The diaphragm feed pump according to claim 2, characterized in that, The cavity is cylindrical in shape, and the connecting plate is circular. The elastic diaphragm is circular or annular in shape. When the elastic diaphragm is annular, a sealed connection is required between the elastic diaphragm and the connecting plate.
4. The diaphragm feed pump according to claim 1, characterized in that, A feed check valve is provided at the feed inlet to control the unidirectional flow of material into the working chamber; a discharge check valve is provided at the discharge outlet to control the unidirectional flow of material out of the working chamber.
5. The diaphragm feed pump according to claim 4, characterized in that, The telescopic mechanism is a bidirectional telescopic mechanism, including a first telescopic end and a second telescopic end; The main body includes a first main body and a second main body respectively disposed on the left and right sides of the bidirectional telescopic mechanism; The first telescopic end is connected to the first elastic diaphragm of the first body; The second telescopic end is connected to the second elastic diaphragm of the second body; When the bidirectional telescopic mechanism is in operation, the first telescopic end and the second telescopic end extend and retract alternately, thereby realizing the alternating operation of the first body and the second body.
6. The diaphragm feed pump according to claim 5, characterized in that, The first inlet on the first body and the second inlet on the second body are connected to the feed pipeline for feeding materials into the first working chamber of the first body and the second working chamber of the second body, respectively. The first discharge port on the first body and the second discharge port on the second body are connected to the feeding pipeline to realize the alternating output and delivery of materials in the first working chamber of the first body and the second working chamber of the second body to the filter press.
7. The diaphragm feed pump according to claim 6, characterized in that, The first and second discharge ports are connected to the feed pipeline through two feed branches, and the first and second discharge check valves are respectively installed on the two feed branches; a main feed port is provided in the middle of the feed pipeline, and the main feed port is connected to the inlet of the filter press through the pipeline.
8. The diaphragm feed pump according to claim 6, characterized in that, The first feed inlet and the second feed inlet are connected to the feed pipeline through two feed branches, and the first discharge check valve and the second discharge check valve are respectively installed on the two feed branches; A main feed inlet is set in the middle of the feed pipeline.
9. The diaphragm feed pump according to claim 5, characterized in that, The bidirectional telescopic mechanism is a bidirectional hydraulic cylinder, and the telescopic rods at both ends of the bidirectional hydraulic cylinder are respectively connected to the first elastic diaphragm of the first body and the second elastic diaphragm of the second body.
10. The diaphragm feed pump according to claim 9, characterized in that, It also includes a hydraulic pump and a reversing valve. The inlet of the reversing valve is connected to the outlet of the hydraulic pump through an oil circuit. The two outlets of the reversing valve are respectively connected to the left oil chamber and the right oil chamber in the bidirectional hydraulic cylinder, so as to selectively supply oil to the left oil chamber or the right oil chamber, thereby realizing the alternating extension and retraction of the two telescopic rods.
11. The diaphragm feed pump according to claim 10, characterized in that, The oil inlet of the hydraulic pump is connected to the oil tank via an oil circuit. The oil tank is equipped with a level sensor and a temperature sensor, which are used to monitor the level and temperature of the hydraulic oil in the tank in real time.
12. The diaphragm feed pump according to claim 10, characterized in that, It also includes a controller, which is connected to the hydraulic pump and the reversing valve respectively, and is used to control the hydraulic pump to alternately supply oil to the left oil chamber and the right oil chamber in the bidirectional hydraulic cylinder.
13. The diaphragm feed pump according to claim 12, characterized in that, The controller has green, red, and yellow indicator lights on its external electrical control box, all of which are electrically connected to the controller. These three indicator lights are used to indicate various operating states of the feed pump.