Novel ceramic layer plunger pump

Abstract

The invention discloses a novel ceramic layer plunger pump, and belongs to the technical field of fluid conveying. Comprising a feeding cylinder, a cylinder body and a discharging flange which are connected end to end, and a communicating cavity is formed among the feeding cylinder, the cylinder body and the discharging flange; the moving plunger assembly penetrates through the communicating cavity, and a material lifting shovel is arranged at the bottom of the moving plunger assembly; the moving plunger assembly is matched with the communicating cavity to sequentially divide the communicating cavity into a cavity d, a cavity c and a cavity b from bottom to top. The fluid is lifted to the chamber d by the lifting shovel through the moving plunger assembly, when the fluid ascends, the chamber d and the chamber c are communicated with each other, the fluid in the chamber d is driven to be transferred into the chamber c, and the fluid in the chamber b is driven to flow out of the discharging flange; and during descending, the fluid in the cavity c flows into the cavity b. According to the invention, the fluid is controlled to be conveyed in sections or sections, so that the conveying continuity and stability are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of fluid transportation, and in particular relates to a novel ceramic layer plunger pump. Background Art

[0002] Due to the rapid development of new energy vehicles in recent years and the introduction of battery manufacturing technology, the traditional automotive glue coating process delivery plunger pump can no longer meet the process performance of glue manufacturing in battery workshops.

[0003] The current automotive glue delivery is from the storage barrel at the initial glue equipment installation point to the end use, and the material viscosity is less than 1000Pa.s (Pascal seconds).

[0004] When the distance between the initial storage tank installation point and the terminal use point is too far (site layout constraints) and the viscosity of the conveying fluid is too high, the heating temperature for reducing the conveying viscosity by heating cannot be too high, resulting in slow and inefficient fluid delivery. Summary of the invention

[0005] In order to solve the technical problems existing in the background technology, the present invention provides a novel ceramic layer plunger pump.

[0006] The present invention adopts the following technical scheme: a novel ceramic layer plunger pump, comprising: a feed cylinder, a cylinder body and a discharge flange connected end to end, wherein a connecting cavity is provided between the feed cylinder, the cylinder body and the discharge flange; and further comprising: a moving plunger assembly penetrating the connecting cavity, wherein a lifting shovel is provided at the bottom of the moving plunger assembly; The moving plunger assembly is adapted to the connecting cavity to separate the connecting cavity into chamber d, chamber c and chamber b from bottom to top in sequence; the fluid is lifted to chamber d by the lifting shovel through the moving plunger assembly, and when moving upward, chamber d and chamber c are connected to each other, the fluid in chamber d is driven to transfer to chamber c, and the fluid in chamber b is driven to flow out from the discharge flange; when moving downward, the fluid in chamber c flows into chamber b.

[0007] In a further embodiment, it further comprises: an oil cylinder, which is arranged on the top of the discharge flange; the oil cylinder comprises: An oil cup connected to the discharge flange via a throat sealing assembly; The oil cup cover is buckled on the oil cup; a chamber a is provided between the oil cup and the oil cup cover, and the chamber a is used for storing a fluid softening diluent.

[0008] In a further embodiment, the motion plunger assembly comprises: A piston rod is movably disposed in the communicating cavity; the top of the piston rod is a rod head, and the rod head is exposed to the outside; A piston connecting rod, fixedly connected to the bottom of the piston rod; An upper valve body, arranged at the bottom of the piston connecting rod; A lifting rod connected to the upper valve body through a lifting connecting rod; The lower valve body is arranged at a specified position of the lifting rod; wherein the upper valve body and the lower valve body are connected to the inner wall of the connecting cavity; the space between the lower valve body and the lifting shovel is chamber d, the space between the upper valve body and the lower valve body is chamber c, and the space between the upper valve body and the discharge flange is chamber b.

[0009] In a further embodiment, the outer surface of the piston rod is covered with a piston rod armor, the inner wall of the cylinder body is fixed with a cylinder body armor, and the outer surface of the lifting rod is covered with a lifting rod armor.

[0010] In a further embodiment, the upper valve body comprises: An upper valve seat is installed on the top of the material lifting connecting rod; a main flow channel and a plurality of first secondary flow channels communicating with the main flow channel are opened inside the upper valve seat, and the plurality of first secondary flow channels are communicated with the chamber c at the same time; It also includes: a receiving cavity, which is opened at the bottom of the piston connecting rod; a plurality of second secondary flow channels are opened inside the piston connecting rod, and the two ends of the second secondary flow channels are respectively connected to the receiving cavity and the chamber b; The steel ball is movably arranged between the accommodating cavity and the main flow channel; when the steel ball is located at the lowest position, the second secondary flow channel and the main flow channel are separated, and when the steel ball is located at the highest position, the second secondary flow channel and the main flow channel are connected.

[0011] In a further embodiment, the lower valve body comprises: A lower valve seat fixed to the inner wall of the feed cylinder; The lower valve core is fixed on the lifting rod through a valve core sealing assembly; when the lower valve core is at the lowest position, the lower valve seat is connected to the lower valve core, and the chamber d and the chamber c are separated.

[0012] In a further embodiment, it also includes: a heating component, which is arranged in the piston rod.

[0013] In a further embodiment, the piston rod armor, cylinder body armor and lifting rod armor are all made of new zirconium oxide ceramics.

[0014] In a further embodiment, a window made of a transparent material is provided on the side of the oil cup cover.

[0015] Beneficial effects of the present invention: The present invention adds a moving plunger assembly, and the moving plunger assembly is adapted to the connecting cavity to sequentially separate the connecting cavity into chamber d, chamber c and chamber b from bottom to top, and the fluid is controlled to be transported in sections or segments to ensure the continuity and stability of the transport. That is, no matter how far the transported fluid is from the storage barrel to the terminal use point, it can be efficiently transported.

[0016] At the same time, considering that the fluid itself has a certain viscosity, a heating process is made inside the pump plunger rod to enable the pump body to have a heating function. The rated maximum heating temperature can reach 120 degrees Celsius, which greatly reduces the viscosity of the battery pack process glue, so that the equipment design uses the original packaging fluid viscosity up to 2000Pa.s (Pascal seconds).

[0017] Finally, in order to be suitable for long-distance transportation, all parts in contact with the fluid are made of zirconium oxide ceramic technology. Ceramics are stable under long-term high-temperature operation, so the pump body is suitable for transporting high-viscosity, high-temperature hot melt adhesives. In addition, for new process fluid glues containing abrasive particles such as quartz and alumina, zirconium oxide ceramics are different from the hardened metal materials of other traditional pumps, and their wear-resistant hardness and self-lubricating properties improve the service life and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the external structure diagram of a new type of ceramic layer plunger pump.

[0019] Figure 2 It is a cross-sectional view of a new type of ceramic layer plunger pump.

[0020] Figure 1 to Figure 2 The markings in are: rod head 1, piston rod armor 2, oil cup cover 3, window 4, oil cup 5, discharge flange 6, nut 7, positioning flange 8, feed cylinder 9, cylinder body 10, piston rod 11, heating assembly 12, throat sealing assembly 13, piston connecting rod 14, cylinder body armor 16, steel ball 17, lifting shovel 18, piston sealing assembly 19, upper valve seat 20, lifting connecting rod 21, lifting rod armor 22, lifting rod 23, valve core sealing assembly 24, lower valve core 25, lower valve seat 26. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example 1 like Figure 1As shown, this embodiment discloses a novel ceramic layer plunger pump, comprising: a feed cylinder 9, a cylinder body 10 and a discharge flange 6 connected end to end, and the feed cylinder 9, the cylinder body 10 and the discharge flange 6 can be connected to each other by threaded fastening. A positioning flange 8 is provided at the bottom of the feed cylinder 9, and a radial discharge flow channel is provided on one side of the discharge flange 6, so when in use, the feed cylinder 9 is partially placed in the storage barrel to take the material, and then discharged through the flow cylinder body 10 and the discharge flange 6 in sequence.

[0023] Specifically, a connecting cavity is provided between the feed cylinder 9, the cylinder body 10 and the discharge flange 6, and a moving plunger assembly is provided in the connecting cavity, and a lifting shovel 18 is provided at the bottom of the moving plunger assembly. The moving plunger assembly described in this embodiment is adapted to the connecting cavity to separate the connecting cavity into chamber d, chamber c and chamber b from bottom to top in sequence; the fluid is lifted to chamber d by the lifting shovel 18 through the moving plunger assembly, and when going up, chamber d and chamber c are connected to each other, the fluid in chamber d is driven to transfer to chamber c, and the fluid in chamber b is driven to flow out of the discharge flange 6; when going down, the fluid in chamber c flows into chamber b.

[0024] In a further embodiment, in combination Figure 2 The moving plunger assembly comprises: a piston rod 11 movably arranged in the connecting cavity. The top of the piston rod 11 described in this embodiment is a rod head 1, and the rod head 1 is exposed to the outside for easy operation.

[0025] It also includes: a piston connecting rod 14 fixedly connected to the bottom of the piston rod 11, an upper valve body is arranged at the bottom of the piston connecting rod 14, and there is a connection relationship between the upper valve body and the inner wall of the communicating cavity. Furthermore, the bottom of the upper valve body is fixedly connected to a lifting rod 23 through a lifting connecting rod 21, and the bottom of the lifting rod 23 is used to fix the lifting shovel 18. In combination with the illustrated embodiment, the lifting shovel 18 is installed at the bottom of the lifting rod 23 through a nut 7.

[0026] In this embodiment, a piston seal is provided between the upper valve body and the chamber c (when the cylinder armor 16 is provided, it is the cylinder armor 16). Further, the piston seal includes: a plurality of piston seal rings, which are embedded in the outer wall of the upper valve body and are in close contact with the chamber c (when the cylinder armor 16 is provided, it is the cylinder armor 16).

[0027] Furthermore, a lower valve body is provided at a designated position of the lifting rod 23, and a connection relationship exists between the lower valve body and the inner wall of the communication cavity.

[0028] Through the above structural relationship, the space between the lower valve body and the lifting shovel 18 is chamber d, the space between the upper valve body and the lower valve body is chamber c, and the space between the upper valve body and the discharge flange 6 is chamber b.

[0029] In order to achieve segmented delivery of the fluid to ensure the required continuity and stability, the upper valve body of this embodiment includes: an upper valve seat 20 installed on the top of the lifting connecting rod 21, and the interior of the upper valve seat 20 is provided with a main flow channel and a plurality of first secondary flow channels connected thereto, and the plurality of first secondary flow channels are connected to the chamber c at the same time.

[0030] In order to achieve the closing and opening of the upper valve seat 20 when necessary, it also includes: an accommodating chamber opened at the bottom of the piston connecting rod 14, and correspondingly, a plurality of second secondary flow channels are also opened inside the piston connecting rod 14, and the two ends of the second secondary flow channels are respectively connected to the accommodating chamber and chamber b. A steel ball 17 is movably arranged between the accommodating chamber and the main flow channel: when the steel ball 17 is at the lowest point, the second secondary flow channel and the main flow channel are separated, and when the steel ball 17 is at the highest point, the second secondary flow channel and the main flow channel are connected. In other words, the steel ball 17 is located at the end of the main flow channel under the action of its own gravity, that is, it is at the lowest point. At this time, the steel ball 17 separates chamber b and chamber c from each other. On the contrary, if the steel ball 17 is subjected to an upward force greater than the gravity, the steel ball 17 will move upward to squeeze the accommodating chamber and the end of the main flow channel to separate and make the second secondary flow channel and the main flow channel connected, that is, chamber b and chamber c are connected.

[0031] Correspondingly, the lower valve body in this embodiment includes: a lower valve seat 26 fixed to the inner wall of the feed cylinder 9, and a lower valve core 25 fixed to the lifting rod 23 through a valve core sealing assembly 24. Its working principle is as follows: when the lower valve core 25 is at the lowest point, the lower valve seat 26 is connected to the lower valve core 25, and the chamber d and the chamber c are separated. The valve core sealing assembly 24 is composed of a plurality of valve core sealing rings.

[0032] Considering that the fluid itself has a certain viscosity, which will seriously affect the transportation efficiency, a heating component 12 is provided in the piston rod 11. The heating component 12 in this embodiment can be a heating rod, which is then fixed by the rod head 1. However, the heating component 12 can only play a certain role on the piston rod 11, and cannot effectively transfer heat to other parts, so the transportation efficiency is still not significantly improved. Therefore, the present invention has made further improvements: the outer surface of the piston rod 11 is provided with a piston rod armor 2, the inner wall of the cylinder body 10 is fixed with a cylinder body armor 16, and the outer surface of the lifting rod 23 is provided with a lifting rod armor 22. The materials of the piston rod armor 2, the cylinder body armor 16 and the lifting rod armor 22 are all new zirconium oxide ceramics. The purpose is that the ceramic is stable under long-term high-temperature operation, so the pump body is suitable for transporting high-viscosity and high-temperature hot melt adhesives. In addition, for new process fluid glues containing abrasive particles such as quartz and aluminum oxide, zirconium oxide ceramics are different from the hardened metal materials of other traditional pumps, and the wear-resistant hardness and self-lubricating properties improve the service life and stability of the equipment.

[0033] Therefore, the working principle of the upper valve body and the lower valve body in cooperation is as follows: the fluid is lifted to chamber d by the lifting shovel 18 outside through the movement of the plunger assembly inside the pump body; the lifting rod armor 22 drives the lower valve core 25 and the lower valve seat 26 to separate the fluid from chamber d to chamber c, and the fluid in chamber b is driven out of the pump body during operation; in reverse operation, the steel ball 17 separates from the upper valve seat 20 (the piston rod 11 moves downward, forcing the valve core sealing assembly 24 to move downward, the space of chamber c is reduced, the fluid in chamber c is squeezed out to the first secondary flow channel to the main flow channel, and the space between the steel balls 17 is lifted until the steel balls 17 are separated from the main flow channel), driving the fluid in chamber c to enter chamber b through the internal cavity of the connecting rod. Therefore, the fluid is pumped out in a continuous reciprocating manner.

[0034] Considering that during the outflow of the fluid, the piston rod armor 2 will bring out a small portion of the internal fluid, which will affect the service life of the entire plunger pump. Therefore, in a further embodiment, it also includes: an oil cylinder, which is arranged on the top of the discharge flange 6; the oil cylinder includes: The oil cup 5 is connected to the discharge flange 6 through a throat sealing assembly 13; The oil cup cover 3 is buckled on the oil cup 5; a chamber a is provided between the oil cup 5 and the oil cup cover 3, and the chamber a is used to store the fluid softening diluent. For the convenience of observation, a window 4 made of transparent material is provided on the side of the oil cup cover 3.

[0035] Through the above technical solution, the chamber a is used to store the fluid softening diluent, which is used to soften the fluid brought out of the pump body by the piston rod armor 2 to prevent solidification or deterioration affecting the service life of the equipment. It can also lubricate the surface of the piston rod armor 2, further reducing wear and extending the service life of the equipment.

[0036] In other embodiments, the throat sealing assembly 13 includes: a throat sealing ring embedded between the sliding piston rod armor 2 and the oil cup 5.

Claims

1. A new type of ceramic layer plunger pump, characterized in that: include: A feed cylinder, a cylinder body and a discharge flange connected end to end, wherein a connecting cavity is provided between the feed cylinder, the cylinder body and the discharge flange; and further comprising: a moving plunger assembly running through the connecting cavity, wherein a lifting shovel is provided at the bottom of the moving plunger assembly; The moving plunger assembly is adapted to the connecting cavity to separate the connecting cavity into chamber d, chamber c and chamber b from bottom to top in sequence; the fluid is lifted to chamber d by the lifting shovel through the moving plunger assembly, and when moving upward, chamber d and chamber c are connected to each other, the fluid in chamber d is driven to transfer to chamber c, and the fluid in chamber b is driven to flow out from the discharge flange; when moving downward, the fluid in chamber c flows into chamber b.

2. A novel ceramic layer plunger pump according to claim 1, characterized in that: Also includes: The oil cylinder is arranged on the top of the discharge flange; the oil cylinder comprises: An oil cup connected to the discharge flange via a throat sealing assembly; The oil cup cover is buckled on the oil cup; a chamber a is provided between the oil cup and the oil cup cover, and the chamber a is used for storing a fluid softening diluent.

3. A novel ceramic layer plunger pump according to claim 1, characterized in that: The motion plunger assembly comprises: A piston rod is movably disposed in the communicating cavity; the top of the piston rod is a rod head, and the rod head is exposed to the outside; A piston connecting rod, fixedly connected to the bottom of the piston rod; An upper valve body, arranged at the bottom of the piston connecting rod; A lifting rod connected to the upper valve body through a lifting connecting rod; The lower valve body is arranged at a specified position of the lifting rod; wherein the upper valve body and the lower valve body are connected to the inner wall of the connecting cavity; the space between the lower valve body and the lifting shovel is chamber d, the space between the upper valve body and the lower valve body is chamber c, and the space between the upper valve body and the discharge flange is chamber b.

4. A novel ceramic layer plunger pump according to claim 3, characterized in that: The outer surface of the piston rod is covered with a piston rod armor, the inner wall of the cylinder body is fixed with a cylinder body armor, and the outer surface of the lifting rod is covered with a lifting rod armor.

5. A novel ceramic layer plunger pump according to claim 4, characterized in that: The upper valve body comprises: An upper valve seat is installed on the top of the material lifting connecting rod; a main flow channel and a plurality of first secondary flow channels communicating with the main flow channel are opened inside the upper valve seat, and the plurality of first secondary flow channels are communicated with the chamber c at the same time; It also includes: a receiving cavity, which is opened at the bottom of the piston connecting rod; a plurality of second secondary flow channels are opened inside the piston connecting rod, and the two ends of the second secondary flow channels are respectively connected to the receiving cavity and the chamber b; The steel ball is movably arranged between the accommodating cavity and the main flow channel; when the steel ball is located at the lowest position, the second secondary flow channel and the main flow channel are separated, and when the steel ball is located at the highest position, the second secondary flow channel and the main flow channel are connected.

6. A novel ceramic layer plunger pump according to claim 4, characterized in that: The lower valve body comprises: A lower valve seat fixed to the inner wall of the feed cylinder; The lower valve core is fixed on the lifting rod through a valve core sealing assembly; when the lower valve core is at the lowest position, the lower valve seat is connected to the lower valve core, and the chamber d and the chamber c are separated.

7. A novel ceramic layer plunger pump according to claim 4, characterized in that: Also includes: A heating component is arranged in the piston rod.

8. A novel ceramic layer plunger pump according to claim 4, characterized in that: The materials of the piston rod armor, cylinder body armor and lifting rod armor are all new zirconium oxide ceramics.

9. A novel ceramic layer plunger pump according to claim 2, characterized in that: A window made of transparent material is arranged on the side of the oil cup cover.

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