Proportional delivery pump with heating and heat preservation functions

Abstract

The invention provides a proportional delivery pump with heating and heat preservation functions, which comprises a frame body, a linear driving mechanism, a first pump, a second pump and a connecting rod assembly, and is characterized in that the first pump and the linear driving mechanism are both mounted on the frame body; the driving end of the linear driving mechanism is connected with the telescopic end of the first pump; one end of the connecting rod assembly is hinged to the frame body, and the other end is hinged to the driving end of the linear driving mechanism; the second pump is installed on the frame body, the telescopic end of the second pump is connected with the connecting rod assembly, and the second pump slides in the width direction of the frame body and is positioned; a heating assembly is further included and comprises a spacer bush, and the spacer bush is arranged on the periphery of the first barrel in a surrounding mode. The second pump is arranged in a sliding mode, the first pump and the second pump can pump out materials in proportion, the proportion can be adjusted, and heating and heat preservation are conducted on the materials pumped by the first pump through the heating assembly.

Description

Technical Field

[0001] The invention relates to the technical field of emulsion explosive delivery, and in particular to a proportional delivery pump with heating and heat preservation functions. Background Art

[0002] Emulsion explosives are widely used due to their high stability. Emulsion explosives are formed by fully mixing water phase materials, oil phase materials and sensitizers at a set temperature and in a set ratio. How to ensure a stable temperature and strictly transport the materials to the mixer for mixing and emulsification in proportion is the key to whether the emulsion explosives can be successfully mixed and meet the use requirements. The existing process is generally to heat the water phase materials and the oil phase materials in a storage tank (the sensitizer does not need to be heated), and transport the water phase materials and the oil phase materials to the mixer through a delivery pump and a delivery pipeline for mixing and emulsification. When the water phase materials and the oil phase materials pass through the delivery pump, the heat is easily dissipated, resulting in the temperature of the water phase materials and the oil phase materials transported to the mixer failing to meet the design requirements, especially when the weather temperature is low, the heat loss is serious, and the mixed emulsion explosives have poor fluidity of the oil phase materials during the mixing process of the emulsion explosives due to the low temperature, resulting in insufficient mixing, resulting in the mixed explosives failing to meet the use standards, resulting in waste of explosives.

[0003] In summary, there is an urgent need for a proportional delivery pump with both heating and heat preservation functions to solve or at least partially solve the problems existing in the prior art. Summary of the invention

[0004] The present invention aims to provide a proportional conveying pump with heating and heat preservation, aiming to solve the problem that the existing material conveying pump is easy to lose heat when conveying the raw materials of emulsion explosives. The specific technical scheme is as follows: A proportional delivery pump with heating and heat preservation functions, comprising a frame, a linear drive mechanism, a first pump, a second pump and a connecting rod assembly, wherein the linear drive mechanism is mounted on the frame; the first pump comprises a first piston, a first rod body and a first cylinder body, the first cylinder body is mounted on the frame body, the first piston is slidably connected in the first cylinder body, and the first piston separates a first rod chamber and a first rodless chamber in the first cylinder body, the first end of the first rod body is connected to the first piston, the second end of the first rod body extends out of the first cylinder body and is connected to the driving end of the linear drive mechanism, the first piston is provided with a first check valve for controlling the unidirectional flow of materials from the first rodless chamber to the first rod chamber; the first cylinder body is provided with a first feed port, a first discharge port and a second check valve, the first feed port, a first discharge port and a second check valve, The port is connected with the first rodless cavity, the first discharge port is connected with the first rod cavity, the second one-way valve is arranged on the first cylinder, and the second one-way valve is arranged in series with the first feed port; the first end of the connecting rod assembly is hinged on the linear drive mechanism, the second end of the connecting rod assembly spans the second pump and is hinged on the frame; the second pump is installed on the frame along the height direction, the telescopic end of the second pump is connected with the connecting rod assembly, and the second pump slides along the width direction of the frame and is positioned; it also includes a heating assembly, the heating assembly includes a spacer, a first liquid inlet and a first liquid outlet are arranged on the spacer, the spacer is arranged around the outer periphery of the first cylinder, and an annular heating cavity is enclosed between the spacer and the outer periphery of the first cylinder, the first liquid inlet and the first liquid outlet are both connected with the annular heating cavity.

[0005] Further, the flow area of ​​the first rodless cavity cross section is equal to twice the flow area of ​​the first rod-containing cavity cross section.

[0006] Furthermore, the first liquid inlet is arranged at an end of the spacer sleeve away from the first rod body, and the first liquid outlet is arranged at an end of the spacer sleeve close to the first rod body.

[0007] Furthermore, the linear drive mechanism is one of a hydraulic cylinder, an electric push rod, and a pneumatic cylinder.

[0008] Furthermore, a columnar heating cavity is arranged inside the first rod body, a second liquid inlet and a second liquid outlet are arranged on the first rod body, and both the second liquid inlet and the second liquid outlet are connected to the columnar heating cavity.

[0009] Furthermore, the second liquid inlet and the second liquid outlet are both arranged at the top of the first rod body; a liquid distribution tube is provided in the first rod body, the first end of the liquid distribution tube is connected to the second liquid outlet, and the second end of the liquid distribution tube extends toward the direction close to the bottom of the first rod body to the bottom of the columnar heating chamber.

[0010] Furthermore, the connecting rod assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged on the driving end of the linear drive mechanism, the second end of the first connecting rod is hinged to the first end of the second connecting rod, and the second end of the second connecting rod is hinged on the frame.

[0011] Furthermore, the first one-way valve includes a ball, and a main channel and a branch channel are provided on the first piston. The first end of the main channel is connected to the branch channel, the second end of the main channel is connected to the first rodless cavity, and the end of the branch channel away from the main channel is connected to the first rod cavity; the upper end of the main channel is large and the lower end is small, the ball is arranged in the large end of the main channel, and the ball abuts against the small end of the main channel.

[0012] Furthermore, the second pump includes a second piston, a second rod body, a second cylinder and a slider. The second cylinder is installed on the frame, the second piston is slidably connected to the second cylinder, and the second piston separates a second rod chamber and a second rodless chamber in the second cylinder. The first end of the second rod body is connected to the second piston, the second end of the second rod body extends out of the second cylinder and is hinged to the slider, and the slider is slidably connected to the first connecting rod; the second piston is provided with a third one-way valve for controlling the one-way flow of material from the second rodless chamber to the second rod chamber; the second cylinder is provided with a second feed port, a second discharge port and a fourth one-way valve, the second feed port is connected to the second rodless chamber, the second discharge port is connected to the second rod chamber, the fourth one-way valve is arranged on the second cylinder, and the fourth one-way valve is arranged in series with the second feed port.

[0013] Furthermore, two second pumps are arranged, the two second pumps are arranged on both sides of the first pump respectively, and two connecting rod assemblies are arranged corresponding to the second pumps; a heating assembly is provided on one of the second pumps, and the heating assembly is arranged outside the second cylinder.

[0014] The application of the technical solution of the present invention has the following beneficial effects: The linear drive mechanism drives the first rod body of the first pump to move, so that the first pump works, and drives the connecting rod assembly through the linear drive mechanism to drive the second pump to work; when the linear drive mechanism drives the first piston and the first rod body downward, the first one-way valve opens, the second one-way valve closes, and the material in the first rodless chamber flows from the first rodless chamber to the first rod chamber through the first one-way valve. Because of the existence of the first rod body, the reduced volume in the first rodless chamber is greater than the increased volume in the first rod chamber, so that the material in the first rodless chamber enters the first rod chamber through the first one-way valve, wherein part of the material is stored in the first rod chamber, and the other part of the material is discharged through the first discharge port, so as to realize the pumping of the material; when the linear drive mechanism drives the first piston and the first rod body upward, the first one-way valve closes, the second one-way valve opens, the external material is sucked into the first rodless chamber through the first feed port, and the material in the first rod chamber is discharged from the first discharge port; therefore, when the linear drive mechanism drives the first piston and the first rod body to move, the first pump pumps the material.

[0015] In addition, the liquid used for heating and heat preservation flows into the annular heating chamber from the first liquid inlet, and heats the liquid in the first rodless chamber and the first rod chamber by heat conduction, and has a heat preservation function. By setting the heating component, the material transported in the first pump is heated and kept warm during the transportation process, preventing the heat loss of the transported material during the transportation process, resulting in the material not achieving an ideal mixing effect during the mixing process.

[0016] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. Figure 1-Figure 3 , the present invention is further described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of a proportional delivery pump with heating and heat preservation function according to the present invention; Figure 2 It is a schematic diagram of the internal structure of the first pump in a proportional delivery pump with heating and heat preservation function of the present invention; Figure 3 It is a schematic diagram of the internal structure of the second pump in a proportional delivery pump with heating and heat preservation function according to the present invention.

[0018] Among them, 1, frame; 2, linear drive mechanism; 3, first pump; 31, first piston; 311, first one-way valve; 312, main flow channel; 313, branch flow channel; 32, first rod body; 321, columnar heating chamber; 322, second liquid inlet; 323, second liquid outlet; 324, liquid distribution pipe; 33, first cylinder; 331, first rod chamber; 332, first rodless chamber; 333, first feed inlet; 334, first outlet; 335, second one-way valve; 4. Second pump; 41. Second piston; 411. Third one-way valve; 42. Second rod body; 43. Second cylinder body; 431. Second rod chamber; 432. Second rodless chamber; 433. Second feed inlet; 434. Second feed outlet; 435. Fourth one-way valve; 44. Slider; 5. Connecting rod assembly; 51. First connecting rod; 52. Second connecting rod; 6. Heating assembly; 61. Spacer; 611. First liquid inlet; 612. First liquid outlet; 613. Annular heating chamber. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below, and preferred embodiments of the present invention are provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0021] Example: See also Figure 1-Figure 3The present embodiment provides a proportional delivery pump with heating and heat preservation, including a frame 1, a linear drive mechanism 2, a first pump 3, a second pump 4 and a connecting rod assembly 5, wherein the linear drive mechanism 2 is mounted on the frame 1; the first pump 3 includes a first piston 31, a first rod 32 and a first cylinder 33, wherein the first cylinder 33 is mounted on the frame 1, the first piston 31 is slidably connected in the first cylinder 33, and the first piston 31 is separated into a first rod cavity 331 and a first rodless cavity 332 in the first cylinder 33, and the first end of the first rod 32 is connected to the first piston 31 The second end of the first rod body 32 extends out of the first cylinder 33 and is connected to the driving end of the linear drive mechanism 2. The first piston 31 is provided with a first check valve 311 that controls the material to flow from the first rodless chamber 332 to the first rod chamber 331 in one direction; the first cylinder 33 is provided with a first feed port 333, a first discharge port 334 and a second check valve 335. The first feed port 333 is connected to the first rodless chamber 332, the first discharge port 334 is connected to the first rod chamber 331, the second check valve 335 is arranged on the first cylinder 33, and the second check valve 335 is arranged on the first cylinder 33. 5 is arranged in series with the first feed port 333; the first end of the connecting rod assembly 5 is hinged on the linear drive mechanism 2, and the second end of the connecting rod assembly 5 crosses the second pump 4 and is hinged on the frame 1; the second pump 4 is installed on the frame 1 along the height direction, and the telescopic end of the second pump 4 is connected to the connecting rod assembly 5, and the second pump 4 slides and is positioned along the width direction of the frame 1. Specifically, a through long groove is provided on the frame 1 along the width direction, and the second pump 4 is inserted in the long groove, and the pump body of the second pump 4 is fastened to the frame 1 by bolts. When it is necessary to move the second pump 4 relative to the frame 1 When the second pump 4 is in the position, loosen the bolts and slide the second pump 4 along the length direction of the long groove. After adjusting the position of the second pump 4, tighten the bolts to fix the second pump 4, so as to realize the sliding and positioning of the second pump 4; also includes a heating component 6, the heating component 6 includes a spacer sleeve 61, and a first liquid inlet 611 and a first liquid outlet 612 are arranged on the spacer sleeve 61. The spacer sleeve 61 is arranged around the outer periphery of the first cylinder 33, and an annular heating chamber 613 is enclosed between the spacer sleeve 61 and the outer periphery of the first cylinder 33, and the first liquid inlet 611 and the first liquid outlet 612 are both connected to the annular heating chamber 613.

[0022] It can be known that the linear drive mechanism 2 drives the first rod body 32 of the first pump 3 to move, so that the first pump 3 works, and drives the connecting rod assembly 5 through the linear drive mechanism 2 to drive the second pump 4 to work; when the linear drive mechanism 2 drives the first piston 31 and the first rod body 32 downward (moving toward one end of the first rodless chamber 332, so that the volume of the first rodless chamber 332 becomes smaller), the first one-way valve 311 opens, and the second one-way valve 335 is closed, and the material in the first rodless chamber 332 flows from the first rodless chamber 332 to the first rod chamber 331 through the first one-way valve 311. Because of the existence of the first rod body 32, the reduced volume in the first rodless chamber 332 is greater than the increased volume in the first rod chamber 331, thereby increasing the volume in the first rodless chamber 332. The material enters the first rod chamber 331 through the first one-way valve 311, wherein part of the material is stored in the first rod chamber 331, and the other part of the material is discharged through the first discharge port 334, thereby realizing the pumping of the material; when the linear drive mechanism 2 drives the first piston 31 and the first rod body 32 upward (moving toward the end away from the first rodless chamber 332, so that the volume of the first rodless chamber 332 becomes larger), the first one-way valve 311 is closed, the second one-way valve 335 is opened, and the external material is sucked into the first rodless chamber 332 through the first feed port 333, and the material in the first rod chamber 331 is discharged from the first discharge port 334; therefore, when the linear drive mechanism 2 drives the first piston 31 and the first rod body 32 to move, the first pump 3 pumps the material.

[0023] It is worth noting that the liquid used for heating and heat preservation flows from the first liquid inlet 611 into the annular heating chamber 613, and heats the liquid in the first rodless chamber 332 and the first rod chamber 331 by heat conduction, and has a heat preservation function. By setting the heating component 6, the material transported in the first pump 3 is heated and kept warm during the transportation process, preventing the heat loss of the transported material during the transportation process, resulting in the material not achieving an ideal mixing effect during the mixing process.

[0024] Furthermore, the flow area of ​​the cross section of the first rodless chamber 332 is equal to twice the flow area of ​​the cross section of the first rod chamber 331, so that when the first rod body 32 and the first piston 31 move downward, the volume of the first rodless chamber 332 decreases by twice the volume of the first rod chamber 331 increases. When the first piston 31 and the first rod body 32 move downward, the liquid in the first rodless chamber 332 flows from the first rodless chamber 332 to the first rod chamber 331 through the first one-way valve 311, and half of the liquid is stored in the first rod chamber 331, and the other half is discharged from the first liquid outlet 612. Out; when the first piston 31 and the first rod body 32 move upward, the external liquid is sucked into the first rodless chamber 332 through the second one-way valve 335, and the liquid in the first rodless chamber 332 is discharged from the first discharge port 334; and the amount of material discharged from the first discharge port 334 is equal to the amount of material discharged when the first piston 31 and the first rod body 32 move upward, that is, when the upward and downward speeds of the first piston 31 and the first rod body 32 are the same, the flow rate of material discharged from the first discharge port 334 is equal, so that the first pump 3 can stably discharge material from the first discharge port 334 when working.

[0025] Furthermore, the first liquid inlet 611 is arranged at one end of the spacer 61 away from the first rod body 32 , and the first liquid outlet 612 is arranged at one end of the spacer 61 close to the first rod body 32 .

[0026] It can be known that the material pumped by the first pump 3 flows from the first rodless cavity 332 to the first rodded cavity 331, and the liquid used for heating and insulation flows from the first liquid inlet 611 into the annular heating cavity 613 and from the annular heating cavity 613 to the first liquid outlet 612. The flow direction is opposite to the flow direction of the material. The temperature of the heated and insulating liquid at the first liquid inlet 611 is high, and the temperature of the heated and insulating liquid at the first liquid outlet 612 is low, so that the material pumped by the first pump 3 flows from the first liquid outlet 612 to the first liquid inlet 611, so that the material can be continuously and stably heated during the transportation process, and the temperature after heating is closer to the temperature of the heating and insulating liquid.

[0027] Further, in this embodiment, the linear drive mechanism 2 is a hydraulic cylinder, which drives the first pump 3 to work by extending or retracting the hydraulic cylinder, and drives the connecting rod assembly 5 to work by extending or retracting the hydraulic cylinder, thereby driving the second pump 4 to work. It should be noted that in some other embodiments of the present invention, the linear drive mechanism 2 can also be an electric push rod or a cylinder.

[0028] Furthermore, a columnar heating chamber 321 is provided inside the first rod body 32 , and a second liquid inlet 322 and a second liquid outlet 323 are provided on the first rod body 32 . Both the second liquid inlet 322 and the second liquid outlet 323 are communicated with the columnar heating chamber 321 .

[0029] It can be known that by inputting the heating liquid from the second liquid inlet 322, the heating liquid is discharged from the second liquid outlet 323 after heat exchange in the columnar heating chamber 321, and the material in the first rod chamber 331 is heated and kept warm by heat conduction through the outer wall of the first rod body 32. Therefore, the material in the first rod chamber 331 is heated and kept warm under the joint action of the heating component 6 and the columnar heating chamber 321 in the first rod body 32, which improves the heating efficiency on the one hand and makes the heating more uniform and thorough on the other hand. It is worth noting that the material pumped by the first pump 3 first enters the rodless chamber through the second one-way valve 335, and is initially heated for the first time under the action of the heating component 6 in the rodless chamber. During the pumping process, the material in the rodless chamber enters the rod chamber through the first one-way valve 311, and the material is heated again in the first rod chamber 331 under the dual action of the heating component 6 and the first rod body 32, and the temperature reaches the design temperature, and is discharged from the first outlet 334. The material is heated twice during the pumping process by the first pump 3. The heating process is gradual and sufficient. Liquid is used for heating, and the heating process is gentle. It is suitable for heating hazardous chemicals and reduces the heating risk.

[0030] Furthermore, the second liquid inlet 322 and the second liquid outlet 323 are both arranged at the top of the first rod body 32; a liquid distribution tube 324 is provided in the first rod body 32, the first end of the liquid distribution tube 324 is connected to the second liquid outlet 323, and the second end of the liquid distribution tube 324 extends toward the direction close to the bottom of the first rod body 32 to the bottom of the columnar heating chamber 321.

[0031] It can be known that the heating liquid enters the columnar heating chamber 321 from the second liquid inlet 322, and transfers heat to the material in the first rod chamber 331 by heat conduction. The temperature of the heating liquid drops after heat exchange, and is discharged from the liquid distribution pipe 324 at the bottom of the columnar heating chamber 321 through the second liquid outlet 323. The flow direction of the heating liquid is approximately from the top of the first rod body 32 toward the first piston 31, and the flow direction of the material in the first rod chamber 331 is from the first piston 31 toward the first discharge port 334, approximately from the first piston 31 toward the top of the first rod body 32. The material flow direction is opposite to the flow direction of the heating liquid, so that the material to be heated first contacts the first rod body 32 at the lowest temperature of the heating liquid, and as the material continues to flow, the temperature of the first rod body 32 is higher as it is farther away from the first piston 31, so that the first rod body 32 can continuously heat the material. It should be noted that the heating liquid can be a flowing heat storage medium such as hot water and hot oil.

[0032] Furthermore, the connecting rod assembly 5 includes a first connecting rod 51 and a second connecting rod 52, the first end of the first connecting rod 51 is hinged to the driving end of the linear drive mechanism 2, the second end of the first connecting rod 51 is hinged to the first end of the second connecting rod 52, and the second end of the second connecting rod 52 is hinged to the frame 1.

[0033] It can be known that the linear drive mechanism 2 drives one end of the second connecting rod 52 to move, thereby driving the second connecting rod 52 and the first connecting rod 51 to move simultaneously, and the second connecting rod 52 drives the second pump 4 to work during the movement.

[0034] Furthermore, the first one-way valve 311 includes a ball, and a main channel 312 and a branch channel 313 are provided on the first piston 31. The first end of the main channel 312 is connected to the branch channel 313, the second end of the main channel 312 is connected to the first rodless cavity 332, and the end of the branch channel 313 away from the main channel 312 is connected to the first rod cavity 331; the upper end of the main channel 312 is large and the lower end is small, the ball is arranged in the large end of the main channel 312, and the ball abuts against the small end of the main channel 312.

[0035] It can be known that the ball is pressed on the main flow channel 312 under the action of gravity. When the first piston 31 moves downward, the volume of the first rodless chamber 332 decreases and the pressure increases, and the volume of the first rod chamber 331 increases and the pressure decreases. The pressure of the ball near the end of the first rodless chamber 332 is high, and the pressure of the ball near the end of the first rod chamber 331 is low. The ball moves toward one end of the first rod chamber 331, so that the main flow channel 312 is connected to the branch flow channel 313, the first one-way valve 311 is opened, and the material flows from the main flow channel 312 to the branch flow channel 313, thereby allowing the material to flow from the first rodless chamber 332 to the branch flow channel 313. When the first piston 31 moves upward, the volume of the first rodless chamber 332 increases, and the volume of the first rodless chamber 331 decreases. The pressure at one end of the ball close to the first rodless chamber 332 is small, and the pressure at one end of the ball close to the first rodless chamber 331 is large. The ball moves toward one end of the first rodless chamber 332 and abuts against the main channel 312, so that the main channel 312 is disconnected from the branch channel 313, and the first one-way valve 311 is closed, thereby preventing the material from flowing back from the first rod chamber 331 to the first rodless chamber 332 to prevent backflow.

[0036] The first one-way valve 311 also includes an elastic member, which is arranged in the main flow channel 312, one end of the elastic member abuts against the side wall of the main flow channel 312, and the other end of the elastic member abuts against the ball. Through the arrangement of the elastic member, the ball is pressed against the inner wall of the main flow channel 312 to achieve the sealing of the one-way valve, that is, the one-way valve can be kept sealed without the help of the gravity of the ball, so that the direction of the first pump 3 can be arranged vertically or horizontally, increasing the application range of the first pump 3. In this embodiment, the elastic member is a compression coil spring. In some other embodiments of the present invention, the elastic member can also be a gas spring, an elastic sheet, a rubber spring or other components or structures that can provide elastic potential energy.

[0037] Further, the second pump 4 includes a second piston 41, a second rod 42, a second cylinder 43 and a slider 44. The second cylinder 43 is mounted on the frame 1. The second piston 41 is slidably connected in the second cylinder 43. The second piston 41 separates a second rod chamber 431 and a second rodless chamber 432 in the second cylinder 43. The first end of the second rod 42 is connected to the second piston 41. The second end of the second rod 42 extends out of the second cylinder 43 and is hinged to the slider 44. The slider 44 is slidably connected to the first connecting rod 5. 1; the second piston 41 is provided with a third one-way valve 411 for controlling the one-way flow of material from the second rodless chamber 432 to the second rod chamber 431; the second cylinder 43 is provided with a second feed port 433, a second discharge port 434 and a fourth one-way valve 435, the second feed port 433 is communicated with the second rodless chamber 432, the second discharge port 434 is communicated with the second rod chamber 431, the fourth one-way valve 435 is arranged on the second cylinder 43, and the fourth one-way valve 435 is arranged in series with the second feed port 433.

[0038] It can be known that the linear drive mechanism 2 drives the first connecting rod 51 and the second connecting rod 52 to swing, and the second connecting rod 52 drives the slider 44 and the second rod body 42 to move, and drives the second piston 41 to reciprocate in the second cylinder 43. When the second piston 41 moves downward, the third one-way valve 411 opens, the fourth one-way valve 435 closes, and the material in the second rodless chamber 432 enters the second rod chamber 431 through the third one-way valve 411 and is discharged through the second discharge port 434. When the second piston 41 moves upward, the third one-way valve 411 closes, the fourth one-way valve 435 opens, and the external material enters the second rodless chamber 432 through the second feed port 433, and the material in the second rod chamber 431 is discharged from the second discharge port 434. As the linear drive mechanism 2 drives the first connecting rod 51 and the second connecting rod 52 to swing continuously, the second rod body 42 and the second piston 41 are driven to move continuously, so that the second pump 4 continues to pump the material. The flow cross-sectional area of ​​the second rodless chamber 432 is equal to twice the flow cross-sectional area of ​​the second rod chamber 431, so that the amount of material discharged by the second piston 41 when descending and ascending is equal, so that the second pump 4 can continuously and stably pump material during operation.

[0039] It should be noted that a heating component 6 is also arranged outside the second pump 4 , and the heating component 6 is used to heat and keep the material pumped by the second pump 4 warm.

[0040] It should be noted that the position of the second pump 4 on the frame 1 can be adjusted. The closer the second pump 4 is to the first pump 3, the greater the swing amplitude of the slider 44 and the second piston 41 driven by the second connecting rod 52, and the more material is pumped out by a single reciprocating stroke. By adjusting the position of the second pump 4 on the frame 1, the ratio of the materials pumped out by the first pump 3 and the second pump 4 can be adjusted.

[0041] Furthermore, two second pumps 4 are arranged, and the two second pumps 4 are arranged on both sides of the first pump 3 respectively, and two connecting rod assemblies 5 are arranged corresponding to the second pumps 4; a heating assembly 6 is provided on one of the second pumps 4, and the heating assembly 6 is arranged outside the second cylinder 43.

[0042] It can be known that, through the arrangement of the two second pumps 4, the device can pump three different types of materials at the same time, and the pumping device is integrated so that the first pump 3 and the two second pumps 4 can work together at the same time, and synchronous operation can be achieved when starting and stopping, so that the head and tail of the pumped material can be strictly proportioned according to the ratio, reducing the waste of materials and improving the utilization efficiency of materials. Of course, during use, only the first pump 3 can be used, or only the second pump 4 can be used, or the first pump 3 and any two of the two second pumps 4 can be used to work. It should be noted that in some other embodiments of the present invention, multiple second pumps 4 can be arranged, and multiple second pumps 4 can be arranged separately corresponding to the connecting rod assembly 5, or multiple second pumps 4 can be arranged corresponding to the same connecting rod assembly 5, and the same connecting rod assembly 5 can drive multiple second pumps 4 to work at the same time.

[0043] The working process and basic principle of the present invention are as follows: Before operation, a hot water pipe is connected to the first liquid inlet 611 and the first liquid outlet 612 of the heating component 6, hot water is passed into the annular heating chamber 613, and the hot water after heat exchange is discharged from the first liquid outlet 612; a hot water pipe is connected to the second liquid inlet 322 and the second liquid outlet 323, hot water is passed into the columnar heating chamber 321, and the hot water after heat exchange is discharged from the liquid distribution pipe 324 through the second liquid outlet 323. During operation, the linear drive mechanism 2 drives the first rod body 32 and the first piston 31 upward, the first one-way valve 311 is closed, the second one-way valve 335 is opened, the material enters the first rodless chamber 332 from the second one-way valve 335, and the heating component 6 heats and keeps the material in the first rodless chamber 332 warm; the linear drive mechanism 2 drives the first rod body 32 and the first piston 31 downward, the first one-way valve 311 is opened, the second one-way valve 335 is closed, the material passes through the first one-way valve 311 from the first rodless chamber 332 to the first rod chamber 331, and part of the material is temporarily stored in the first rod chamber 332. 31, another part of the material is discharged from the first discharge port 334. When the material passes through the first rod cavity 331, the heating component 6 and the first rod body 32 heat and keep the material in the first rod cavity 331 at the same time, and double heating is achieved during the conveying process; when the linear drive mechanism 2 drives the first rod body 32 and the first piston 31 upward again, the first one-way valve 311 is closed, the second one-way valve 335 is opened, and the material in the first rod cavity 331 is pumped out from the first discharge port 334, and the external material continues to enter the first rodless cavity 332 through the second one-way valve 335, and so on. The first piston 31 can pump material both when it is moving upward and downward.

[0044] The linear drive mechanism 2 drives the first connecting rod 51 and the second connecting rod 52 to move while driving the first rod body 32 to move. When the second connecting rod 52 moves, the second rod body 42 and the second piston 41 are driven to move through the slider 44. The main difference between the second pump 4 and the first pump 3 is that the second pump 4 has an additional slider 44. The working principle and process of the second pump 4 and the first pump 3 are basically the same, which will not be repeated here. It should be noted that the closer the position of the second pump 4 is to the first pump 3, the greater the amplitude of the movement of the second piston 41 driven by the second connecting rod 52, and the more material is pumped out in the same reciprocating stroke. Therefore, by adjusting the distance between the second pump 4 and the first pump 3, the ratio of the volume of the material pumped out by the second pump 4 and the first pump 3 can be adjusted, so that the ratio of the material pumped out by the first pump 3 and the second pump 4 can be adjusted by adjusting the position of the second pump 4.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A proportional delivery pump with heating and heat preservation, characterized in that: It comprises a frame (1), a linear drive mechanism (2), a first pump (3), a second pump (4) and a connecting rod assembly (5), wherein the linear drive mechanism (2) is mounted on the frame (1); The first pump (3) comprises a first piston (31), a first rod body (32) and a first cylinder body (33); the first cylinder body (33) is mounted on the frame body (1); the first piston (31) is slidably connected in the first cylinder body (33); the first piston (31) separates a first rod chamber (331) and a first rodless chamber (332) in the first cylinder body (33); a first end of the first rod body (32) is connected to the first piston (31); a second end of the first rod body (32) extends out of the first cylinder body (33) and is connected to the driving end of the linear drive mechanism (2); a first one-way valve (311) is provided on the first piston (31) for controlling the one-way flow of materials from the first rodless chamber (332) to the first rod chamber (331); The first cylinder (33) is provided with a first feed port (333), a first discharge port (334) and a second one-way valve (335); the first feed port (333) is communicated with the first rodless cavity (332); the first discharge port (334) is communicated with the first rod-containing cavity (331); the second one-way valve (335) is arranged on the first cylinder (33), and the second one-way valve (335) is arranged in series with the first feed port (333); The first end of the connecting rod assembly (5) is hinged on the linear drive mechanism (2), and the second end of the connecting rod assembly (5) spans the second pump (4) and is hinged on the frame (1); The second pump (4) is installed on the frame (1) along the height direction, the telescopic end of the second pump (4) is connected to the connecting rod assembly (5), and the second pump (4) is slidable and positioned along the width direction of the frame (1); The heating component (6) further comprises a heating component (6), wherein the heating component (6) comprises a spacer (61), wherein a first liquid inlet (611) and a first liquid outlet (612) are arranged on the spacer (61), wherein the spacer (61) is arranged around the outer periphery of the first cylinder (33), and an annular heating chamber (613) is enclosed between the spacer (61) and the outer periphery of the first cylinder (33), and the first liquid inlet (611) and the first liquid outlet (612) are both connected to the annular heating chamber (613).

2. A proportional delivery pump with heating and heat preservation function according to claim 1, characterized in that: The flow area of ​​the cross section of the first rodless cavity (332) is equal to twice the flow area of ​​the cross section of the first rod-containing cavity (331).

3. A proportional delivery pump with heating and heat preservation function according to claim 1, characterized in that: The first liquid inlet (611) is arranged at an end of the spacer (61) away from the first rod body (32), and the first liquid outlet (612) is arranged at an end of the spacer (61) close to the first rod body (32).

4. A proportional delivery pump with heating and heat preservation function according to claim 1, characterized in that: The linear drive mechanism (2) is one of a hydraulic cylinder, an electric push rod and a pneumatic cylinder.

5. A proportional delivery pump with heating and heat preservation function according to any one of claims 1 to 4, characterized in that: A columnar heating chamber (321) is arranged inside the first rod body (32), a second liquid inlet (322) and a second liquid outlet (323) are arranged on the first rod body (32), and the second liquid inlet (322) and the second liquid outlet (323) are both connected to the columnar heating chamber (321).

6. A proportional delivery pump with heating and heat preservation function according to claim 5, characterized in that: The second liquid inlet (322) and the second liquid outlet (323) are both arranged at the top of the first rod body (32); a liquid distribution pipe (324) is provided inside the first rod body (32), a first end of the liquid distribution pipe (324) is connected to the second liquid outlet (323), and a second end of the liquid distribution pipe (324) extends in a direction close to the bottom of the first rod body (32) to the bottom of the columnar heating chamber (321).

7. A proportional delivery pump with heating and heat preservation function according to any one of claims 1 to 4, characterized in that: The connecting rod assembly (5) comprises a first connecting rod (51) and a second connecting rod (52), wherein the first end of the first connecting rod (51) is hinged to the driving end of the linear drive mechanism (2), the second end of the first connecting rod (51) is hinged to the first end of the second connecting rod (52), and the second end of the second connecting rod (52) is hinged to the frame (1).

8. A proportional delivery pump with heating and heat preservation function according to any one of claims 1 to 4, characterized in that: The first one-way valve (311) includes a ball, and the first piston (31) is provided with a main channel (312) and a branch channel (313). The first end of the main channel (312) is connected to the branch channel (313), the second end of the main channel (312) is connected to the first rodless cavity (332), and the end of the branch channel (313) away from the main channel (312) is connected to the first rod cavity (331); the upper end of the main channel (312) is large and the lower end is small, the ball is arranged in the large end of the main channel (312), and the ball abuts against the small end of the main channel (312).

9. The proportional delivery pump with heating and heat preservation function according to claim 7, characterized in that: The second pump (4) comprises a second piston (41), a second rod body (42), a second cylinder body (43) and a slider (44); the second cylinder body (43) is mounted on the frame body (1); the second piston (41) is slidably connected in the second cylinder body (43); the second piston (41) is separated into a second rod chamber (431) and a second rodless chamber (432) in the second cylinder body (43); the first end of the second rod body (42) is connected to the second piston (41); the second end of the second rod body (42) extends out of the second cylinder body (43) and is hinged to the slider (44); the slider (44) is slidably connected to the first connecting rod (51); The second piston (41) is provided with a third one-way valve (411) for controlling the one-way flow of materials from the second rodless chamber (432) to the second rod chamber (431); The second cylinder (43) is provided with a second feed port (433), a second discharge port (434) and a fourth one-way valve (435); the second feed port (433) is connected to the second rodless cavity (432); the second discharge port (434) is connected to the second rod-containing cavity (431); the fourth one-way valve (435) is arranged on the second cylinder (43), and the fourth one-way valve (435) is arranged in series with the second feed port (433).

10. A proportional delivery pump with heating and heat preservation function according to claim 9, characterized in that: Two second pumps (4) are arranged, and the two second pumps (4) are arranged on both sides of the first pump (3) respectively. Two connecting rod assemblies (5) are arranged corresponding to the second pumps (4); one of the second pumps (4) is provided with a heating assembly (6), and the heating assembly (6) is arranged on the outside of the second cylinder (43).

Images